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  • Technological Innovation Promotes Progress in the Purification Engineering Industry
    Technological Innovation Promotes Progress in the Purification Engineering Industry 1. Overview of purification engineering Purification engineering, as a key link in ensuring the quality of industrial products and stable production environment, is increasingly important. It covers multiple aspects such as air purification and temperature and humidity control, providing a solid guarantee for high-precision manufacturing. 2. Technological development and innovation In recent years, significant technological progress and innovation have been made in the field of purification engineering. The development of new filtering materials, the application of intelligent monitoring systems, and the improvement of energy efficiency have all injected new vitality into the development of purification engineering. The application of these innovative technologies not only improves the effectiveness and efficiency of purification engineering, but also brings significant economic benefits to enterprises. 3. Environmental policies and standards With the increasing global environmental awareness, governments around the world are also constantly increasing their requirements for environmental policies. As one of the important means to reduce industrial pollution, the formulation and implementation of environmental protection policies and standards in purification engineering is of great significance for the healthy development of the industry. These policies and standards not only provide direction for the development of purification engineering, but also provide strong support for enterprises. 4. Case analysis and practice A certain optoelectronic enterprise has effectively improved the cleanliness and stability of the production environment by introducing advanced purification engineering technology. This not only greatly improves the quality and performance of the product, but also wins more market share for the enterprise. This successful case provides useful reference and inspiration for other enterprises. 5. Industry Outlook and Challenges In the future, with the continuous progress of technology and the strengthening of environmental protection policies, the purification engineering industry will face broader development space and challenges. Enterprises need to continuously strengthen technological innovation and research and development investment, improve product competitiveness and environmental performance, in order to adapt to constantly changing market demands. At the same time, the government and various sectors of society also need to strengthen cooperation and jointly promote the healthy development of the purification engineering industry.

    2024 04/23

  • Pcr Nucleic Acid Test
    Pcr Nucleic Acid Test Jilin HaoChen cleaning Engineering Technology Co., Ltd. is a technological innovation enterprise focusing on the pharmaceutical purification engineering industry. The enterprise has a superb purification engineering technical team and excellent construction force. The company has always pursued the service tenet of "safety first, quality-oriented, customer first and technology first". Many representative air purification projects have been established in Jilin Province, Heilongjiang Province, Liaoning Province and Inner Mongolia Autonomous Region. With a registered capital of 5.8 million yuan, the company has grade II qualification for professional contracting of Building Decoration Engineering; Grade II qualification for professional contracting of building electromechanical installation engineering. Business scope: Design, construction, commissioning, maintenance and technical consulting services for air purification project, clean room installation project, central air conditioning installation project, building decoration project, electromechanical equipment installation project, building intellectualization project, building curtain wall project, steel structural engineering, communication project; Sales and installation of medical air conditioning, central air conditioning, electromechanical equipment, laboratory (laboratory) equipment, pharmaceutical industry equipment, air purification products, building materials, and medical equipment;

    2024 03/25

  • Food clean workshop design and construction requirements Shanghai Sujing
    Food clean workshop design and construction requirements Shanghai Sujing Food clean room design and construction requirements The food clean room needs to meet the 100,000 air purification standards. The food factory constructs a clean workshop, which can effectively reduce the deterioration of the produced products, prolong the shelf life of the food, and improve the production efficiency. 1. What is a clean workshop? The clean workshop is also called the clean room, the clean room, and the clean room. It refers to the removal of particulates, harmful air, bacteria and other pollutants in the air within a certain space, and the indoor temperature, cleanliness, indoor pressure, Airflow speed and airflow distribution, noise vibration and lighting, and static control are within a certain range of requirements, and specially designed rooms are given. That is to say, no matter how the external air conditions change, the interior can have the characteristics of maintaining the cleanliness, temperature, humidity and pressure originally set. What is a 100,000-level clean workshop? Simply put, the number of particles in the air per cubic meter of ≥0.5μm is no more than 3.52 million. The smaller the number of particles in the air, the less the amount of dust and microorganisms. The cleaner the more. The 100,000-class clean workshop also requires that the workshop should have 15-19 air changes per hour, and the air purification time after full ventilation should not exceed 40 minutes. 2, the food factory clean workshop partition The general food factory clean workshop can be roughly divided into three areas: general working area, quasi-cleaning area, and clean working area. ⊙General working area (non-cleaning area): general raw materials, finished products, tool storage area, packaging finished product transfer area and other raw materials, areas with low exposure risk of finished products, such as outer packaging room, original auxiliary material warehouse, packaging material warehouse, outer packaging Workshop, finished product warehouse, etc. ⊙Quick cleaning area: the second requirement, such as raw material processing, packaging material processing, packaging, buffer room (unpacking room), general production and processing room, non-ready food inner packaging room and other finished products, but not directly exposed. ⊙Cleaning work area: It means the highest requirements for sanitary environment, high requirements for personnel and environment, and must be sterilized and changed before entering, such as raw materials, exposed processing areas of finished products, cold processing rooms for food, and cooling rooms for ready-to-eat foods. A storage room for ready-to-eat foods, an inner packaging room for ready-to-eat foods, etc. Food plants with clean workshops should minimize the occurrence of pollution sources, cross-contamination, mixing and errors in site selection, design, layout, construction and renovation. The environment of the factory is clean and tidy, and the flow of people and logistics is reasonable. Appropriate access control measures should be in place to prevent unauthorized access. Preservation of construction and construction completion data Buildings with more serious air pollution during the production process should be built on the downwind side of the plant with the most wind direction in the year. When the mutually influential production processes are not suitable to be located in the same building, there should be effective partitioning measures between the respective production areas. The production of fermented products should have a dedicated fermentation plant. 3. Requirements for clean production areas Processes that require sterility but are not capable of terminal sterilization and processes that achieve terminal sterilization but are aseptically sterilized should be performed in a clean production area. A clean production area with good hygienic production environment requirements shall include the final cooling of ready-to-eat foods, ready-to-eat semi-finished products or finished products, or the storage and treatment sites before packaging, and the pre-treatment of raw materials, product sealing and molding, which cannot be finally sterilized. The exposed environment after final sterilization of the product, the inner packaging material preparation area and the inner packaging room, as well as processing and processing places and inspection rooms for food production, improvement of food characteristics or preservation. The clean production area should be reasonably laid out according to the production process and the corresponding clean room grade requirements. The layout of the production line should not cause round-trips and discontinuities. The different workshops in the production area should meet the needs of the variety and process. If necessary, there should be buffer room and other measures to prevent cross-contamination. The buffer room area should not be less than 3 square meters. The raw material pretreatment must not be used in the same clean area as the finished product. Areas and spaces suitable for production scale are designated as temporary storage areas for materials, intermediate products, products to be inspected and finished products, and cross-cutting, confusion and pollution should be strictly prevented. The inspection room should be set up independently, and its exhaust and drainage should be properly treated. If there is air cleaning requirement for the inspection process of the product, a clean workbench shall be provided. 4. Working principle of air purification system in food purification clean workshop Mode 1: Standard combination room air conditioning air cabinet + air filtration system + clean room ventilation insulation pipe + HEPA efficient air supply + clean room return air pipe system working principle, continuous circulation and supplement fresh air to the clean room workshop to achieve The cleanliness required for the production environment. Mode 2: Clean room workshop ceiling installation FFU industrial air purifier directly to the clean room air supply + return air column return air system + ceiling type air conditioner refrigeration working principle. This form is generally used where the environmental cleanliness requirements are not very high and the cost is relatively low. Such as food production workshops, ordinary physical and chemical laboratory projects, product packaging rooms, cosmetics production workshops, etc. Different designs of different air supply and return air systems in the clean room are decisive factors in determining the different cleanliness levels of the clean room.

    2024 01/23

  • Mcab Workshop Clean Pipes and Medical or Pharmaceutical Equipment Model NO.: pm-01
    Mcab Workshop Clean Pipes and Medical or Pharmaceutical Equipment Model NO.: pm-01 Customized: Customized Condition: New Warranty: 1 Year Specification: Customized Origin: China For all our products, we can also produce according to your drawings, if our standards do not meet your needs. Cooperative enterprise project picture

    2024 01/19

  • Clean and dust-free workshop purification project completion acceptance problem
    The completion acceptance of the clean room-cleaning plant is carried out in a single machine test in each branch, and the test is not carried out after the self-test of the production load system. The completion acceptance is the verification of the single-machine test and the no-production load system test of each branch project, the clean room (zone) performance parameter detection and debugging, the inspection quality inspection of each branch, and the function detection and debugging as required. 1. When the clean factory is completed and accepted, the materials for completion and acceptance shall be carefully checked, generally including the following documents and records: 1 Drawing review records, design change notices and as-built drawings; 2 The factory qualification certificate and the entry inspection report of the main equipment, materials and instruments of each division project; 3 Single equipment, system installation and inspection records of each division project; 4 Single-machine test run records of each branch; 5 No-load trial operation and commissioning records of each branch project and system; 6 Various types of pipeline tests and inspection records; 7 Inspection and commissioning records of safety facilities of each division project; 8 Quality acceptance records for each division project. 2. The main test contents of the completion acceptance of the clean factory are as follows: 1 airflow visual inspection; 2 wind speed and air volume test; 3 air filter leak detection; 4 Sealing test of clean room (area); 5 static pressure difference test between rooms; 6 air cleanliness level; 7 self-cleaning time; 8 temperature, relative humidity; 9 illuminance value; 10 noise level; 11 Other testing items that the builder needs to carry out. 3. The completion acceptance of the clean workshop is qualified, and after verification and approval, the function acceptance is carried out according to the requirements. The function acceptance is tested in [static". The main test contents are as follows: 1 Detect air cleanliness level; 2 If there are requirements in the production process, microbiological testing or chemical contaminant testing or special surface cleanliness testing shall be carried out; 3 stability test of temperature and relative humidity of clean room (zone); 4 detecting self-cleaning time; 5 Test the airtightness test of the clean room (area); 6 measuring the illuminance; 7 determine the noise level; 8 Confirm and record the airflow pattern and the number of air changes when needed; 9 Other testing items that need to be performed. 4. After the acceptance of the clean factory, the acceptance report shall be prepared. The main contents are as follows: 1 Description of the opening status of various facilities (including production process equipment) in the clean workshop; 2 description of the clean room (district) personnel and their activities; 3 sub-test records and analysis opinions (including test point location, coordinates, etc.); 4 valid verification certificate of the test instrument; 5 Acceptance of relevant conclusions. Shanghai Sujing Industrial Co., Ltd. If you have any needs, you can always pass with me, thank you very much for your support to Sujing, look forward to working with you. have a pleasant workday! Thankyou&Bestregard!

    2024 01/08

  • How to clean the clean room?
    How to clean the clean room: Different ways to clean the clean room: 1, vacuum cleaning 2, using the cleaning tool for wet cleaning 3. Disinfection 4, sterilization Vacuum cleaning can be done by vacuum cleaning with a centralized vacuum piping system or by a portable automatic vacuum cleaner. Wet cleaning is a widely used method. Dry cleaning is prohibited in the clean room, because particles that fall off from the cleaning tool (rag) during cleaning will fly around and be blown and electrostatically charged. When using wet cleaning, a cleaning tool is used. The purpose of the tool is to peel off the particles from the surface and break down the grease residue. The operation sequence of the wet cleaning will be described below. Disinfection in the biological clean room, disinfection and wet cleaning at the same time. In some cases, spray disinfectant mist into the room air. In aseptic production, it is sometimes necessary to sterilize with a clean room (isolator), that is, to use a gaseous sterilizant (hydrogen peroxide vapor, peracetic acid, formalin, etc.). It should be kept in mind that the purpose of cleaning is to remove the pollution from the clean room rather than moving the pollution from one place to another, and not to carry the pollution out. Cleaning materials, tools and equipment Cleaning should be done with washing materials (disinfecting solutions in the medical and pharmaceutical industries), cleaning tools (solution containers, brushes and mops) and materials (cloth rags for different purposes, microporous sponges). Wood cleaning tools shall not be used. All tools and equipment shall be clean and replaced with new ones. Damaged tools or tools with scratched notches and other damage shall not be used. Cleaning tools shall be marked with the use of the property. barrel Stainless steel or plastic drums should be used. Pay attention to the integrity of the barrel, especially plastic drums, which are prone to cracks and scratches. Mop and sponge The mop is used to clean the walls and floors. The mop with the water squeezing device has a sponge inside. The sponge used for cleaning the ISO5 or above clean room should always be in a damp state. The sponge should be inspected for fracture before use because the fracture will become a source of particle divergence. Other structures of mops can also be used. Roller Clean the surface of the clean room with the same adhesive layer as the Dycem floor. The roller can be used to easily clean the plane between the filter and the wall. After the roller is used, it should be cleaned and dried with cleaning materials and disinfectant. brush The brush is an unwelcome thing in the clean room in terms of its natural characteristics. It has a lot of voids to retain dirt, but in many cases it is not enough to lack it. Brushes can be used with large dirt (crushed glass), hard-to-reach parts and holes, etc. It is forbidden to use a bristle brush. Plastic brushes with plastic fibers should be used. rag It is necessary to use a rag to clean the surface according to the purpose of the clean room. The surface of the clean room being used, during installation and ready for production; wiping of tools; wiping of computer and instrument screens; wiping of equipment. The requirements for the rag are as follows: (1) determining that non-divergent dust particles include both liquid and solid; (2) Strictly of the same nature, containing no unwanted impurities that contaminate the clean room or damage the surface; (3) high cleanliness; (4) Fast (5) water absorption; (6) It is suitable for disinfection (if necessary). Cleaning equipment for clean rooms At present, in various industries, including microelectronics and medical care, a wide range of special tools for cleaning clean rooms are widely used, including trolleys (for handling cleaning and disinfecting liquids), mops with clips (clamping sponges, special fabrics, etc.), rags. Wait. Vacuum cleaners require a vacuum cleaner for the clean room. Sometimes a centralized vacuum dedusting system can be used to establish a vacuum pipe network, and the connection points are set in the clean room. The clean room can be cleaned initially and used to remove residual moisture after wet cleaning before wet cleaning. Cleaning process Cleaning should meet the following three requirements: (1) Start from the clean area (near the HEPA filter) and advance to the dirty part (row grille and door, floor); The cleaning should be carried out in parallel with each other, and the detachment of the rag (mound) should be lifted off the surface to restart the new movement. (2) Do not round or move back and forth on the surface. (3) The vertical or inclined surface should be cleaned from top to bottom. When cleaning and disinfecting the clean room, arrange the necessary time to prepare the necessary tools and articles. If using a rag, the washing liquid should be sprinkled on the rag and should not be sprinkled on the cleaned surface. Pay special attention to the horizontal surface during cleaning. The mistake in cleaning is to move the dirt from one place to another instead of cleaning it from the surface. A variety of cleaning methods are available: daily, regular and large cleaning. Every day and night (per shift) or after each batch of product is manufactured, 1-2 daily cleanings should be performed. Regular cleaning can be done once a week (monthly). Thorough cleaning on a monthly or quarterly basis can be determined on a case-by-case basis. These data are not dogmatic, and each company can develop its own cleaning rules based on the level of cleanliness, the nature of the production and the product. After the installation, commissioning and commissioning of the clean room are completed, special attention should be paid to the clean room to be cleaned multiple times before the inspection and certification. In the daily cleaning, the floor can be cleaned by liquid method. Injectors and disinfectant injectors, etc., should increase the workload during regular cleaning. It is necessary to clean the walls, furniture, and some parts of the equipment. The cleaning should include cleaning all the cleaning rooms and equipment and thoroughly and thoroughly. The complete cleaning procedure is as follows: 1. Prepare to clean and disinfect (re-clean) the solution. It can be used as a common cleaning solution that does not damage the surface layer of the clean room. Some surface layers are easily damaged, such as the inability to withstand hydrogen peroxide. The solution for the clean room should be prepared with deionized water. In the sterilization process, pure water or water for injection filtered through a 0.22 micron filter is used. 2. The requirements for personnel entering the clean room for cleaning are the same as those for entering the clean room for long-term rollers. 3. Apply a brush to the visible dirt (broken glass, etc.), rub it, and wipe it carefully. Do not spread dirt. 4. Ceiling: Clean the ceiling with a wet rag or adhesive roller, but be careful not to damage the HEPA filter. If the ceiling is all HEPA filter, do not touch it to ensure the ventilation system works normally. If necessary, clean the fixings (frames) between the filters and use a rag, roller or vacuum cleaner to move in one direction. 5, wall: wet cleaning with mops, rollers or rags, should be covered in parallel with each other, moving from top to bottom, pay special attention to switches, sockets and signaling devices. 6. Glass surface: The cleaning method is the same as the wall. Sprinkle some alcohol solution during cleaning (if it is sterilized, use a formalin solution filtered through a 0.22 micron filter). 7. Floor: The cleaning method is the same as the wall. It should be parallel to each other and move from the center to the door. Frequently, the sponge should be rinsed in a bucket with solution (after each movement) using a mop with a sponge clamp. More convenient. 8. In order to have sterilized production conditions, the cleaning room should be sterilized after the cleaning is completed, and formalin can be sterilized. For this purpose, a hydrogen peroxide sprayer or other tools should be used, and the steam should be cleaned. Stay indoors for hours, such as 24 hours. After this disinfection is completed, it is sometimes necessary to repeat the disinfection of individual surfaces of the clean room. 9. After the cleaning of the clean room is completed, clean the locker room, the material air lock chamber and the furniture in it, pay special attention to the wash basin, the faucet, the injector, and its vicinity. 10. Check the air and surface cleanliness after cleaning. 11. Record should be made on the cleaning diary, indicating the type of cleaning, time and name of the performer. After the cleaning work is completed, the cleanliness of each surface of the clean room should be checked. The most widely used inspection methods are: (a) Check with a rag to find larger particles. This method is simple, intuitive, and effective in many cases and can be divided into two methods: Check with a white rag, wipe the surface with a rag, check for dirt under the light; check with a black rag and compare it to a white rag; check with white light and slant the surface with a strong light in a dark room to see if A shadow of particles that settle on the surface. And the difference in color between the clean surface and the contaminated surface. (b) Irradiation with ultraviolet light is carried out in a dark room, and ultraviolet rays (365 nm) cause multi-organic matter to emit light. (c) The surface was examined by an optical microscope to find particles having a particle diameter of 5 μm or more. (d) Particle counting is performed on the sediment on the sheet using a microscope or a laser particle counter. (e) Scan the surface with a dedicated instrument.

    2023 12/07

  • Clean room knowledge
    First, the definition of clean room Clean Room , also known as clean room or clean room. It refers to the removal of pollutants in the air, harmful air, bacteria, etc. in a certain space, and controls the temperature, cleanliness, indoor pressure, airflow velocity and airflow distribution, noise vibration and illumination, and static electricity in the room. Within a demand range, the room is specially designed. That is to say, no matter how the external air conditions change, the interior can have the characteristics of maintaining the cleanliness, temperature, humidity and pressure required by the original requirements. Second, the role of clean room The primary role is to control the clean room zui products (such as silicon chips, etc.) and temperature on the day the cleanliness of the atmosphere in contact, so that products can be produced in a good environment of space, manufacturing. Third, clean room control project 1. It can remove the dust particles floating in the air. 2. It can prevent the generation of dust particles. 3. Temperature and humidity control. 4. Adjustment of pressure. 5. Exclusion of harmful gases. 6. The airtightness of the structure and the compartment. 7. Static prevention. 8. Electromagnetic interference prevention. 9. Consideration of safety factors. 10. Energy saving considerations. Fourth, the classification of clean rooms 1. Turbulent Flow : The air enters the clean room from the air-conditioning box through the air duct and the air filter (HEPA) in the clean room, and returns to the air from the partition wall panel or the raised floor on both sides of the clean room. The airflow moves in a non-linear motion and is in an irregular turbulent or eddy current state. This type is suitable for clean room grades of 1,000-100,000 . Advantages: simple structure, system construction cost, and the expansion of the clean room is relatively easy. In some special-purpose places, the dust-free workbench can be used together to improve the clean room level. Disadvantages: The dust particles caused by turbulent flow are difficult to discharge in the indoor space, which is easy to contaminate the process products. In addition, if the system is stopped and then activated, it will take a long time to reach the cleanliness of the demand. 2. Laminar : The laminar air flow moves into a uniform linear shape. The air enters the room from a filter with a coverage of 100% , and is returned by the raised floor or the partition plates on both sides. This type is suitable for the environment where the clean room level needs to be higher. Use, generally its clean room grade is Class 1~100 . Its type can be divided into two types: (1) Horizontal laminar flow type: The horizontal air is blown out from the filter in one direction, and the return air system of the opposite wall returns to the wind, and the dust is discharged to the outside with the wind direction, and the pollution on the downstream side is generally serious. Advantages: The structure is simple and can be stabilized in a short time after operation. Disadvantages: The construction cost is higher than the turbulent flow, and the indoor space is not easy to expand. (2) Vertical laminar flow: the ceiling of the room is completely covered by ULPA filter, and the air is blown from top to bottom, which can obtain higher cleanliness. The dust generated by the staff during the process or the worker can be quickly discharged outside without affecting Other work areas. Advantages: Easy management, stable operation in a short period of time, and difficult to be affected by the operation status or the operator. Disadvantages: high construction cost, difficulty in flexible use of space, ceiling hangers occupy a considerable space, maintenance and replacement of filters is more troublesome. 3. The compound of formula (Mixed Type): The composite type combines turbulent flow and laminar flow to provide a partially super clean air. (1) Clean Tunnel : 100% coverage of the process area or work area with HEPA or ULPA filters to increase the cleanliness level to above 10 , saving installation and operation costs. This type needs to isolate the operator's work area from product and machine maintenance to avoid work and quality during machine maintenance. ULSI processes mostly use this type. The clean tunnel has two other advantages: A. Elastic expansion is easy; B. It can be easily performed in the maintenance area when repairing equipment. (2) clean pipeline (Clean Tube): The product flow through the automatic production line surrounded and purification, the cleanliness level to provide 100 or more. Because the product and the operator and the dusting environment are isolated from each other, a small amount of air can be used to obtain good cleanliness, which can save energy, and no manual automatic production line is suitable for use. It is applicable to the pharmaceutical, food industry and semiconductor industries. (3) Combined Clean Room : Clean the cleanliness level of the product process area of the clean room with a clean room level of 10,000~100,000 to 10~1000 level for production; clean workbench, Clean work sheds and clean air cabinets are examples of this type. Clean Workbench: Class Class 1~100 . Clean work shed: a small space for anti-static transparent plastic cloth in the turbulent clean room space, using a separate HEPA or ULPA and air-conditioning blower group to become a higher-level clean space, the rating is 10 ~1000 grade, the height is about 2.5 meters, the coverage area is about 10m2 or less, and the four pillars are equipped with movable wheels, which can be used for elasticity. Fifth, the composition of the clean room The composition of the clean room is composed of the following systems ( indispensable in the constituent system molecules ) , otherwise it will not constitute a complete and good quality clean room: (1) Ceiling system: including Ceiling rod , I-Beam or U-Beam , Ceiling grid or Ceiling frame . (2) Air conditioning system: including air cabin, filter system, windmill, etc. (3) Partitional wall : including windows and doors. (4) Floor: including raised floor or anti-static Shumei floor. (5) Lighting fixtures: including fluorescent lamps, yellow lamps, etc. The main structure of the clean room is generally made of steel or bone cement, but whatever the structure, the following conditions must be met: A. There will be no cracks due to temperature changes and vibrations; B. It is not easy to produce dust particles, and it is difficult to adhere to particles; C. low hygroscopicity; D. In order to maintain indoor humidity conditions, thermal insulation is high; Sixth, clean rooms are classified according to use (can be divided into two categories) ( 1 ), industrial clean room - the control of inanimate particles. It mainly controls the pollution of the working objects by air dust particles, and the inside generally maintains a positive pressure state. It is suitable for precision machinery industry, electronics industry (semiconductor, integrated circuit, etc.) aerospace industry, high purity chemical industry, atomic energy industry, optical magnetic products industry (disc, film, tape production) LCD (liquid crystal glass), computer hard disk, computer head Production and other industries. ( 2 ) Biological clean room, which mainly controls the pollution of working objects by living particles (bacteria) and inanimate particles (dust). Can be divided into: A. General biological clean room, which mainly controls the pollution of microorganism (bacterial) objects. At the same time, its internal materials should be able to withstand various sterilizing agents, and the internal pressure is generally guaranteed. In essence, the internal materials should be able to withstand various industrial cleaning chambers. Examples: pharmaceutical industry, hospital (operating room, sterile ward) food, cosmetics, beverage production, animal laboratory, physical and chemical laboratory, blood station. B. Biological safety clean room: It mainly controls the pollution of living particles from the working object to the outside world and people. The inside should maintain a negative pressure with the atmosphere. Example: bacteriology, biology, clean laboratory, physical engineering (recombinant genes, vaccine preparation)

    2023 11/21

  • Factory workshop
    Factory workshop Dongguan Chengliang Electronic Technology Co.,Ltd is known as switching power supply manufacturer with certain scale and good reputation in world.Not because of its advertising,but its standard process and strict quality control,and also its perfect service system. 1.Workshop 2.Assembly 3.Automatic welding 4.Hand inspection welding 5.Debugging 6.Labelling 7.Burn-in test 8.Packing So strict production process,what are you waiting for?If you have interest,call or email me immediately.We are looking for sincere partners.

    2023 08/31

  • Workshop Cra Type Cargo Trolley
    Workshop Cra Type Cargo Trolley Model NO.: CRA Usage: Tools Wheel Type: Pneumatic Wheel Style: Folding Certification: CE Brand Name: Lyfoo Structure: Plateform Certificate CE: Passed Working Environment: Workshop, Warehouse, Logistic Hub Attribute: Durable & Efficiency Specification: CE, ISO Material: Steel Load Capacity: 6, 8, 12, 24 Ton Wheel Amount: 4~12 Wheels Surface Handling: Chrome Plated Place of Origin: Beijing, China (Mainland) Model Number: Cra Color: Red, as Required ISO 9001: Passed Maintenance: Large Useful Lift Without Maintenance Trademark: Lyfoo industry Origin: China Transport cargo trolley --Cargo trolley can be pulled by means of wire rope and pin connect. --Parallel connection of two or more trolleys prevents each trolled from swaying to sides. --Moving direction change can be easily obtained by use of handle. --Cargo trolley can be connected each other combining the large bracket with the small bracket Please login to our website for related details, if you are interested in our product.

    2023 08/23

  • Car Workshop Design/Mobile Workshop Truck
    Model NO.: STG-SS210 Standard: GB, ASTM, DIN, JIS, AISI, BS Forming: Cold Rolled Member: Structural Steel Carbon Structural Steel: Q235 Application: Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Frame Part, Steel Warehouse, Steel Garage, Steel Hangar Body: Sandwich Panel or Single Steel Panel Characteristics: Good Environmental Performance Color: Customized Specification: accordingly HS Code: 7308900000 Type: Light Section Steel Trademark: Stucture Steel, STG Connection Form: Bolt,Rivet and Welded Connection Type of Steel For Building Structure: H-Section Steel Residential Wall Structure: Steel Frame and Wall Board Main Structure: Light Steel Structure Advantages: Easily Assemble and Disassemble Merits: Good Aseismic Performance Transport Package: Standard Export Package Origin: China steel building is a metal structure fabricated with steel for the internal support and for exterior cladding, as opposed to steel framed buildings which generally use other materials for floors, walls, and external envelope. Steel buildings are used for a variety of purposes including storage, work spaces and living accommodation. They are classified into specific types depending on how they are used. Advantages Steel provides several advantages over other building materials, such as wood: Steel is structurally sound and manufactured to strict specifications and tolerances. Any excess material is 100% recyclable. Steel does not easily warp, buckle, twist or bend, and is therefore easy to modify and offers design flexibility. Steel is also easy to install. Steel is cost effective and rarely fluctuates in price. Steel allows for improved quality of construction and less maintenance, while offering improved safety and resistance. With the propagation of mold and mildew in residential buildings, using steel minimizes these infestations. Mold needs moist, porous material to grow. Steel studs do not have those problems. Components: Steel Structure Memebers Main steel frame Q345B hot rolled H section or Steel Welded H Section Purlin Q235B Q345B C Section Steel or Z Section Steel Roof Cladding Sandwich Panel Corrugated EPS sandwich panel , glass fiber sandwich panel , rock wool sandwich panel , and PU sandwich panel or steel sheet Wall panel Sandwich Panel Corrugated EPS sandwich panel , glass fiber sandwich panel , rock wool sandwich panel , and PU sandwich panel or steel sheet Tie Rod Q235B Circular Steel Tube Brace Q235B Round Bar Column & Transverse Brace Q235B Angle Steel or H Section Steel or Steel Pipe Knee Brace Q235B Angle Steel Roof Gutter Q235B Color Steel Sheet Rainspout PVC PVC Pipe Door plastic steel Aluminum alloy Open the door, sliding door, rolling door Windows plastic steel Aluminum alloy sliding windows High Strengthen Bolt 45#,20MnTiB,35VB Standard parts Equipments: Construction Site: Introductions: Established in 2001, Sky Trend Group Co., Limited was engaged in manufacturing and exporting metal materials before, with the development over the years, Sky Trend Group have formed a comprehensive range of service from engineering design, manufacturing, sales to service for construction industry, and our products mnufactured almost cover the whole industry. There are 6 factories and 700 employees in total, including 6 registered engineers, 40 senior engineers and 118 professional technicians, and we have successfully carried out hundreds of international projects in more than 58 Countries and regions. FAQ For more exact price, please fill the blanks below: 1) Location (where will your construction be built?) _____________country_______area 2) Dimension: length*width*height __________mm*__________mm*__________mm 3) Requirement for insulation materials. EPS, fiberglass wool, rockwool, PU sandwich panels will be suggested;or single panel. 4) Door quantity & size _____units, _____(width)mm*_____(height)mm 5) Window quanity & size _____units, _____(width)mm*_____(height)mm 6) Crane needed or not. If yes, _____units, max. Capacity of lifting ____tons; max. Height of lifting _____m 7) Wind load (max. or wind speed) _____kn/m2, _____km/h, _____m/s 8) Snow pressure (max. snow height) _____kn/m2, _____mm 9) Anti-earthquake _____level

    2023 08/23

  • Design of Clean Drying Room in Pharmaceutical Aseptic Workshop
    Design of Clean Drying Room in Pharmaceutical Aseptic Workshop In the medical aseptic workshop, a large number of vessels used in the production cycle need to be washed and dried. The clean level of the clean area as the auxiliary production area generally requires D level, and the drying room is no exception. After cleaning in a clean environment, the dehumidification and drying of utensils that contain a lot of moisture has become a problem we have to solve. We use examples to show that reasonable design can achieve energy-saving, drying and dehumidifying effects, which has certain theoretical guidance and practical application significance for this work. 0 Preface Dehumidification is mainly divided into three types: heating and dehumidification, cooling and dehumidification, and desiccant adsorption dehumidification. In the past, the most commonly used method was heating, heating, ventilation, and dehumidification. However, in a clean environment, simply adopting the method of full delivery and full row heating and dehumidification, the energy consumption is large, and the load on the clean filtration system is also large, so we designed cooling and dehumidification 1. Comprehensive dehumidification method of heating and dehumidifying clean air circulation. 1 Principle In the actual design, a small amount of fresh air is added to maintain the pressure difference of the system relative to the outdoor 12.5Pa. In the mixing section and the return air are mixed, the primary effect is filtered, and the air is cooled to the temperature below the dew point by the surface cooling water section, allowing the water vapor in the air to condense The water baffle intercepts and removes the water, and then the air is heated to more than 60 ° C through the heating section. The air expands and the moisture in the unit volume is reduced to achieve heating and dehumidification. The filter is sent to the drying room after filtering. In order to ensure the minimum temperature loss during the process, the purification and dehumidification fan should be as close as possible to the drying room, and the air supply pipeline should be insulated. The dried hot air absorbs the moisture in the vessel in the drying room, the temperature decreases (about 45 ° C) and the humidity increases, and it is taken out of the drying room through the return air pipe, returns to the mixing section and starts the next cycle, so as to achieve the purpose of dehumidification. In addition, the temperature and humidity sensors are set at the air inlet and return air outlet. The exhaust fan is turned off when the machine is turned on. The system is in the circulating air flow operation mode. After a period of operation, as the moisture in the hot air absorption vessel increases, if the cooling and dehumidification power is not enough, the effect If the absolute humidity of the return air inlet is much higher than the absolute humidity of the air inlet, close the air outlet valve, open the exhaust valve, and exhaust fan, and use the direct exhaust mode to quickly replace When the humidity of the air in the system is high, when the difference between the two is not large, it switches to the circulation mode. The principle is shown in Figure 1. In actual use, even if the cooling water is not turned on (such as the chiller is not turned on in winter), the purpose of drying and dehumidifying the utensils can be achieved by simply using the heating and dehumidification method of circulating and straight row alternating mode. 2 Application example calculation 2.1 Cleanliness and air exchange frequency Comprehensively consider the clean room design specification GB50073-2013, the pharmaceutical industry clean plant design specification GB50457-2008, the 2013 version of GMP and its implementation guide, production and cleaning auxiliary area D. Clean room ventilation times are 6 times / h-20 times / h, fan The primary effect filter is G4 type, the intermediate effect filter is F type, and the H13 type high-efficiency filter at the air inlet of the drying room is selected. It meets the requirements of the medical clean plant. It has been verified that the dust particles are <3520000 / m3, which meets the requirements of the D clean plant. 2.2 Selection of fan air volume Our drying room has an area of 42m2, a volume of 110m3, and an air-conditioning duct of about 120m3. A 2500m3 / h air volume fan is used. The number of air changes reaches 2500/120 = 20 times / h, which meets the design upper limit. The exhaust fan uses 2400 / h air volume fan, which can ensure that the system maintains a pressure difference of 12.5Pa relative to the outside world. 2.3 Heating power 2.3.1 Cubic meters of water content at different temperatures, humidity and atmospheric pressure (see Table 1) The pressure difference between clean rooms is generally <50Pa, the pressure difference between the clean room and the outside is generally <80Pa, and the pressure difference between the fan and the outside is generally <500Pa, which is almost negligible relative to the atmospheric pressure of 0.1Mpa, which is almost negligible. Situation handling. 2.3.2 Flow of moisture in the air The purification and drying system can run for a certain period of time. According to the heat preservation conditions of the clean workshop, the maximum temperature can generally reach 60 ℃, and the humidity can reach 80%. Look up the table 1. The water content of the air is 103.7g / m3, and the circulation volume is about 120m3 (dryer plus fan duct volume ), The quality of the water is: m = 103.7g / m3X120m3 = 12440g Known ventilation times n = 20 / h = 20 / 60min = 1/3 min The maximum flow rate of moisture in the air is S = mXn = 12440g / 3min = 414.6g / min 2.3.3 Heat required per unit time Assuming that the outdoor fresh wind is 0 ° C in extreme cases at the beginning of the cycle heating mode, it is assumed that the temperature of the return air inlet in the system is T1 = 0 ° C. After heating, the temperature of the air outlet T2 = 60 ° C and the water heat capacity C = 1cal / g ° C , Q = MCΔT / t = SCΔT = 414.6g / minX1 / g ℃ X (60 ℃ -0 ℃) = 24876 cal / min 2.3.4 Heating power Assuming that the heating power is P, the heating efficiency n = 60%, the thermal equivalent: q = 0.24cal / j = 0.24kcal / KWs = 0.24 × 60kcal / KWmin Table 1 Cubic meters of water content (g) under different temperature, humidity and atmospheric pressure q = 14.4 kcal / KWmin Then the heat output per unit time Q = nqP heating power P = Q / nq = 24.876kcal / min / (60% X14.4kcal / KWmin) = 28.8KW So we choose 6KWx5 = 30KW adjustable heater with five gears. 2.4 Dry dehumidification 2.4.1 Simple heating and dehumidification In the case of simple heating and dehumidification, assuming an outdoor temperature of 25 ° C and a humidity of 50%, the temperature and humidity of the inside and outside of the drying room are the same at the initial start-up, and the fresh air is turned off. After a certain period of time t1, the temperature in the drying room rises to 45 ° C and the humidity rises 80%. It can be seen from Table 1 that the water content in the air is m1 = 11.4g / m3 and m2 = 52.2g / m3, respectively, and the system volume V = 120 m3 is replaced by a full row for a time of t2 = 60min / 20 = 3min. ΔM = (m2-m1) V = (52.2g / m3-11.4g / m3) x120g = 4896g After the replacement, the temperature and humidity in the drying room are the same as the outdoor, and then switch to the cycle heating mode to enter the next cycle. Similarly, when the outdoor temperature is 25 ° C and the humidity is 80%, the heating temperature will eventually reach 45 ° C, and the water can be removed in each cycle as shown in Table 2: With less and less water removed each time through continuous circulation, the humidity in the drying room becomes lower and lower. In this way, the humidity in the drying room can be reduced to below 20% to achieve the purpose of drying the utensils. 2.4.2 Reasonable heating and insulation temperature design It can be seen from Table 1 that increasing the holding temperature of the drying room up to 60 ° C, absorbing moisture in the vessel, setting the same time to reach 80% humidity, moisture in the air is 103.7g / m3, and the amount of water discharged at one time can reach (103.7g / m3 -11.4g / m3) x120 g = 11076g, which is more than double that of 4896g at 45 ℃, and the dehumidification efficiency is higher. It can be seen that the insulation of the drying room is very important. However, because the temperature of the clean workshop around the drying room is generally 20 ℃, if the drying room temperature is set too high, the temperature difference is too large, the heat dissipation is also large, the heat loss is large, the required heating power is too large, the heating section temperature is too high, safe The risk is too great, so it is better to set the temperature of the heat preservation cycle at 45 ℃ -60 ℃. Usually it is set to 45 ° C in winter and 60 ° C in summer. From Table 1, it can be seen that even when the maximum humidity reaches 100% and the outdoor temperature is 15 ° C, the maximum moisture content in the atmosphere is m1 = 12.7g / m3. The heating cycle is 45 ° C, the humidity is 20% after multiple displacement and discharge, the moisture content in the air is m2 = 13.0g / m3, m2> m1, indicating that the final humidity can be achieved by pure heating and dehumidification at this time. . 2.5 Comprehensive drying and dehumidification 2.5.1 Reasons for comprehensive drying and dehumidification Under extreme conditions in summer, when the outdoor temperature is above 35 ° C and the humidity is 100%, it can be seen from Table 1 that the moisture content in the air will be> 40g / m3. If it is discharged by heating only, corresponding to the moisture content of 40g / m3, the circulation temperature in the drying room is 45 ℃, and the humidity is> 60%; the circulation temperature is 50 ℃, the humidity is close to 50%; 55 ℃, the humidity is close to 40%; even if the temperature reaches 60 The humidity at ℃ also exceeds 30%, at this time it is difficult to achieve the purpose of drying. Therefore, under extreme conditions in summer, when replacing outdoor air, the outdoor high-temperature and high-humidity air should be first cooled and dehumidified to reduce the moisture content of the air from 40g / m3 to 15g / m3-20g / m3 and remove up to 25g / m3. Moisture, and then heating and cycling to 5055 ℃ -55 ℃, the final humidity can be controlled below 20% to achieve the purpose of drying. 2.5.2 Calculation of cooling capacity of surface cooler According to the foregoing, the fresh air make-up volume V = 2500m3 / h, the fresh air water content M = 40g / m3, the unit time treatment water volume m = MV, = 2500m3 / hX40 g / m3 = 100Kg / h In the process, it is necessary to reduce the 35 ℃ fresh air to 10 ℃, and the temperature difference ΔT = 25 ℃ Water heat capacity C = 1cal / g ℃, Required cooling capacity Q = mCΔT = 100Kg / hX1cal / g ℃ X25 ℃ = 2500Kcal / h If the exchange efficiency of the surface cooler is 50%, the cooling capacity requirement should be 5000 Kcal / h. 3 Program control The operation of the clean dehumidification and drying system involves fresh air, return air valve switch, temperature and humidity collection, moisture content in the air, time parameter calculation and comparison control, heating, refrigeration, fan no wind protection, overheat protection, various operating mode switching Control, so we chose Siemens S7-200PLC programming controller, and connected to the central monitoring system through the network, can achieve dual control of online and remote monitoring. references: [1] Drug Certification and Management Center of the State Food and Drug Administration; Drug GMP Guide Plant Facilities and Equipment [M]. Beijing: China Medical Science and Technology Press, 2011.8 [2] Order No. 79 of the Ministry of Health of the People's Republic of China. Regulations on the Quality Management of Pharmaceutical Production (2010 Revision) [EB]. Beijing: Ministry of Health, 2011.1 [3] Liu Xianzhe, Cai Zhiming; Design, Construction and Commissioning of Dry and Clean Workshop; Clean and Air Conditioning Technology [J]; 1997.3. [4] Wang Jun; Experience of air conditioning and ventilation design in clean workshop of pharmaceutical factory; building thermal energy ventilation and air conditioning [J]; 1998.2. [5] Xu Li; Design and Management of Clean Workshop during GMP Implementation; Chemical and Biological Engineering [J]; 2003.4. [6] Chen Guangjian; GMP design of pharmaceutical factory clean workshop from the perspective of production management theory; pharmaceutical engineering design [J]; 2001.1. [7] Wan Bin; Cai Zhihui, Zhan Yanmin; Air-conditioning energy-saving control transformation of GMP clean workshop; [J] Electrical Engineering Technology; 2009.12.

    2023 08/20

  • Digital Workflow Workshop
    Digital Workflow Workshop With the development of prepress digital technology, the printing industry has been thinking about how to respond to changes and uncertainties in order to enhance its competitiveness. It has become a very popular topic at present; however, digital or automated, it is hoped that it will be able to print. The industry is improving from the fundamental physique to achieve a level where both quality and productivity can be improved. The Digital Workflow Seminar is a series of academic seminars jointly organized by the Taiwan Printing Association and the Taiwanese Printing Technology Association. In addition to the symposium hosted by the two societies, the seminar was printed and disseminated by a corporation. Fundamentally sponsored by the foundation; it can be divided into three main parts: The first part is the lecture by General Manager Jin Jinjin of Taiping Technology Co., Ltd., with the topic [The impact of the digital process on publishing and printing industry"; the second part is The keynote was "The Latest Trend of Automated Workflows" by the manager of Taiwan's Agfa Jihua Co., Ltd. Zhang Zhongxing. The third part is the director of Taiwan's Heidelberg International Co., Ltd. Chen Yusheng. The topic is: " Heidelberg CIP4 total solution provider". Influence of Digital Process on Publishing and Printing Industry - General Manager Jin Jinjin First of all, the advent of the age of science and technology has affected major changes in the manufacturing processes of various industries. Of course, cultural publishing is no exception. Traditional production processes of traditional publications have been rapidly eliminated and replaced by high-tech production processes. The evolution of prepress digitalization has reached a point of maturity. To cope with this major change, the printing industry can only improve and digitize its processes to increase productivity and save time. The following explanation: When it comes to the digital printing process, we must first talk about the digital development of the text, which is also a very important part of the process of digitalization; from the early text typesetting, to the DTP desktop typesetting, and later The completion of the digitized version and the support of the format have all contributed to the rapid changes in the environment of the printing industry in recent years. The influence of digitalization of cultural publishing industry on prepress, printing and postpress: The work of the plate-making factory actually plays a very important role in the printing process. One of the key points in the digitization of the printing workflow is that we can shorten the length of the workflow. After comparing the traditional workflow and computerized workflow, we can It is clear that the simplification of the work flow is due to the tediousness of traditional processes. We can only experience the need to improve the digitalization of the computer to simplify the work flow and thus more accurately grasp our printing quality. Therefore, we must import the idea of a virtual platemaking factory. In this process, the virtual platemaking factory plays a very important role. It can transfer many of the original work of the platemaking factory to the cultural publishing house. Library servo management system, this database server management system has a database self-management system that can handle electronic files from manuscript publishers of cultural publishers, magazines and magazines, manuscripts, manuscript processing files, and four-color restorations. File, after processing the digital file to generate PDF file, and then according to the need to complete the large version, remote digital proofing, after the proofreading of the file is correct, can be transmitted through the E1 line to the partner with the printing company to create outlets, and then printing; The key point mentioned here is the concept of Digital Proof. Another advantage of digital computerization lies in the material. Speech by Mr. Li Jichang, Chairman of Taiwan Printing Technology Association For the savings, we can use the digital-like method to wait for the files to be confirmed without mistakes. We do not need to follow the traditional workflow and we must output the negatives first, and then we can confirm the actions after proofing. After three years of testing, this workflow has been very successful at the moment. It not only saves manpower but also controls the quality of printing. Progress in science and technology, and the repeated evolution of application software is also one of the main causes of today's digital process; today we can use software tools to store files in PDF file format to facilitate the circulation of files between publishers and platemaking plants; As a digital proofing application or after a file is confirmed, a PS version is directly produced by a printing factory, which has greatly shortened the cumbersome process of the traditional printing process. As for the PDF file format, it has been able to promote The development under the Chinese environment is quite complete. This has led to a smoother digital workflow. What is a virtual platemaking plant: It is defined as the construction of the original plate-making factory, including large-scale publication and proofing, in magazines, publishing houses, advertising companies, newspapers, or book companies; and assisting in the drafting of the manuscript. Virtual platemaking plants usually use ROOM [RIP once Output Many] SYSTEM and can ensure that the proofing data is exactly the same as the output film or PS version. Compared with traditional proofing, the virtual platemaking factory uses digital proofing methods to complete proofreading, and can be converted into proofs according to the needs of the editions for proofreading. Because the ICC color calibration system is used, it is guaranteed that the color matches the original. The archive format usually uses the PDF file format for circulation. After the file is confirmed to be correct, the E1 high-speed data transmission connection is used to directly output the PS plate or film to the printer. Due to the advanced technology of the Internet, the current ADSL-style network is very convenient for uploading and downloading, plus the price is relatively low. Plus, today's files can be compressed very small, so the files can be transmitted via the Internet. After confirmation, the PS plate or film is directly connected to the printer. From such a work flow, we can gradually escape the stage of the traditional plate-making factory and achieve the digital workflow of the virtual plate-making factory. Comparison of advantages and disadvantages: advantage: Speech by Director of Taiwan Printing Association Xiao Yaohui 1. The process can be completely controlled 2. Reduce the error rate, reduce the chance of re-entering the film and reduce the production cost 3. Shorten the working time, the editorial publication can immediately see the results, do not have to wait for the operating time of the previous plate-making factory 4. Striving for time-sensitive publications to enhance competitiveness 5. Worksheet purification can completely avoid the problems caused by the previous multiple platemaking factories 6. The publications are 100% computerized. Making ebooks or surfing the Internet for the future will be a matter of course 7. Set up a database, set up a news bank and set up an information bank for unlimited business opportunities. 8. It is easy to reprint, completely computerized, just need to make a slight adjustment to the published publications, you can re-export the reprint 9. Data can be horizontally supported, unlimited space Disadvantages: 1. Need to provide space (about 3 square meters) to install related equipment 2. The US Department Needs Training and Counseling for New Functions The virtual plate-making factory can almost replace all the functional work that can be done by the traditional plate-making factory. The only difference is that the virtual plate-making factory does not need to output negative film, and part of the job of outputting the negative film is sent directly to the output of the printing plant after the file is determined. . The market for future development is in the mainland market. Therefore, if we can establish such a workflow as soon as possible, we can save a lot of complicated processes, save time and manpower, and increase the competitive advantage of enterprises. Mr. Zhang Zhongxing's manager speaks: "The latest trends in automated workflows." INTRODUCTION: Speech by Mr. Li Xingwei, Standing Supervisor of Taiwan Printing Technology Association At present, the trend of the printing industry is the demand for a small number of various types of printing products, and the number of printed materials is also becoming less and less. These are unavoidable situations. For example: a company's printed product catalog must be in the new product. Before it is produced, it is distributed, otherwise there will be waste of materials, so many companies gradually choose to display the company catalogue on the website, even for customers to download, but also due to these kinds of reasons, resulting in the number of printed materials The less the trend. However, on the other hand, we must consider that traditional print products also have room for growth. For example, EBay, the world`s largest online shopping site, last year for the first time, chose to print a print catalogue, but found it very popular. Unexpected results, the business volume has a significant increase in the effect, the main reason lies in the demand for diversification and timeliness of the printing market demand; from the perspective of foreign development trends, the added value of the plate-making plant does have a smaller and smaller trend. In the past, the status of the plate-making factory was at the stage of foundry, and four-color films were produced by the company`s electronic archives to earn meagre profits; such a plate-making factory has disappeared abroad, and it is believed that Taiwan`s future should also disappear. The plate-making factory should It will slowly transform and develop to help customers make file amendments to increase the added value of the plate making plant. Therefore, how to allow companies to enhance the added value, including: production process automation, business model is to think of ways to help customer service projects ..., etc., in order to increase the company's competitiveness is an urgent task. In terms of automation: currently refers to the automation of the equipment and process management part of the information; whether it is printing machinery and equipment: no human operation, automatic connection automation; or process management information, such as: PDF file format standards and architecture The perfection, automatic imprinting or trapping, remote proofing automatic control part and CIP4... have all been developed and improved. According to the previous process of cheating, after the single-page file is completed, the undated software is used to complete the lagging work, and the negative film information is output after the RIP. After the evolution to the current can be a single-page electronic file RIP finished after the image, and then back to the page back to the processing, when the concept of electronic job ticket appears, the so-called way of imposition, whether it is saddle or plain paper, you can Before the output of the film or the printing plate, it is decided that this is very different from the previous method. In the past, even the stencil method had to be done at the front end and the modules were all put together.

    2023 07/22

  • Lighting design of clean workshop in pharmaceutical industry
    Lighting design of clean workshop in pharmaceutical industry O Introduction With the development of GMP clean technology at home and abroad in recent years, the requirements for the production environment of the pharmaceutical industry are becoming higher and higher, and the design of clean workshops is becoming more and more important. In order to implement the relevant national policies and the "Pharmaceutical Production Quality Management Standards" in the design of clean workshops in the pharmaceutical industry, to achieve advanced technology, economical application, safety and reliability, ensure quality, and meet the requirements of energy conservation and environmental protection, the state renewed in 2008 GB50457-2008 "Code for Design of Clean Workshops in the Pharmaceutical Industry" was released. The cleanliness of air in the clean workshop of the pharmaceutical industry is divided into one hundred, ten thousand, one hundred thousand and more than one hundred thousand (equivalent to three hundred thousand). The process is complicated and the environment is complex. The electrical design needs to closely cooperate with the process and heating. Through professional studies, the following is a brief discussion of the electrical lighting design in the clean workshop of the pharmaceutical industry. 1 Lighting design of clean workshop 1.1 Illuminance and illuminance uniformity According to the study of visual function, it can be seen that the illuminance function when the contrast sensitivity changes, before reaching a certain contrast sensitivity value, it is very effective to increase the illuminance to improve the contrast sensitivity. The clean workshops of the pharmaceutical industry are closed workshops, and the interiors are mostly windowless rooms (areas). The International Lighting Commission (CIE) "Indoor Lighting Guide" stipulates that the minimum illumination of windowless workshops should not be less than 500 lx. According to the current power level in China, it should meet the basic requirements for lighting. When the minimum illumination is 150lx, it can basically meet the physical and psychological requirements of workers. In order to improve production efficiency, Article 14 of China's GMP (1998) stipulates that "the illumination of the main studio is declared to be 300 lx; production sites with special requirements for the contrast degree can be provided with local lighting". As for auxiliary studios, corridors, air lock rooms, personnel purification and material purification rooms, considering the light and dark adaptation to the production workshop, the illuminance should not be lower than 150lx. Illuminance uniformity refers to the ratio of the minimum illuminance on the specified surface to the average illuminance. When the illuminance ratio is appropriate, it can reduce fatigue and focus, so that there will not be a dark feeling when looking around the room. In the main working room of the medical clean room (area), the illuminance uniformity of lighting should not be less than 0.7, which is generally satisfied in engineering design. 1.2 Selection of light source The clean workshops in the pharmaceutical industry have little natural ventilation. Generally, air supply and exhaust vents are provided in rooms and corridors in the purification area, and mechanical air supply and exhaust are performed through purified air conditioners. The increase in the number of air vents and the installation position limits the number of lamps and the installation position of the lamps. This requires that the number of lamps be minimized under the same illumination conditions. It is appropriate to use efficient light sources as the purification area (room) light source. The luminous efficiency of high-efficiency fluorescent lamps is generally several times that of incandescent lamps, and the light source is a cold light source, which is not easy to heat. This not only meets the requirements for high efficiency of lamps and lanterns, but also reduces the energy consumption of air conditioners and meets the energy-saving requirements. The pharmaceutical industry has less natural lighting. During working hours, the lamps generally need to be in working condition for a long time, which requires that the light source at work is closer to the natural light source. The spectral distribution of the light source of the fluorescent lamp is close to natural light, which can meet the requirements of the light source. At present, medical clean rooms (areas) with high contrast requirements generally use fluorescent lamps as light sources at home and abroad. 1.3 Selection of lamps The function of the lamp is to protect the light source and to work in various environments, and to comply with appropriate safety standards. Since there are certain requirements for air cleanliness in the clean workshop, the production of medicines needs to be disinfected and sterilized regularly. Therefore, the lamps in the clean room (area) should be lighting lamps that are simple in shape, not easy to accumulate dust, easy to clean, and easy to disinfect and sterilize. . 1.4 Installation of lamps The environment of the clean factory room (area) is different from the ceiling. The installation of lighting fixtures will directly affect the clean room (area) from the pollution of the ceiling. The clean room (area) lamps generally have two installation methods: ceiling mounted surface installation and embedded ceiling concealed installation. Embedded ceiling installation will increase the opening area of the ceiling, which not only makes it difficult to seal the opening of the roof during the construction process, but also the roof The upper opening seal is easy to be walked by the maintenance personnel to repair the equipment on the lifting item, causing the opening seal to rupture and form a communication with the clean room (area), causing pollution to the clean room (area). Although lighting fixtures are not the main source of dust in the clean room (area), if not installed properly, dust particles will penetrate into the clean room (area) through the gap between the lights. Moreover, it is embedded in the ceiling to install lamps, the investment is relatively large, and the luminous efficiency is relatively low. Practice has proved that in a non-unidirectional flow clean room, the choice of lighting fixtures will not reduce the air cleanliness level. In view of the above reasons, the lamps in the general clean area (room) should be mounted on the ceiling. If the installation of lamps and lanterns is restricted by the height of the layer and the special requirements of the process must be concealed, the size of the opening should be accurate, and it must be sealed to prevent dust particles from seeping into the clean room (area). 1.5 Selection of emergency lamps Emergency lighting refers to lighting that is activated due to the failure of normal lighting power. Emergency lighting includes evacuation lighting, safety lighting and backup lighting. If the lighting of the clean workshop of the pharmaceutical industry is interrupted due to power supply accidents, some pharmaceutical production will be scrapped, and some will cause fires, explosions, and poisoning accidents. It will bring danger and loss to personal safety and property. In the event of accidents and situations, standby lighting should be installed in the clean workshop of the pharmaceutical industry. The illuminance of the backup lighting should meet the required field The minimum illumination of the operation of the location or location. The illuminance of the standby lighting should not be lower than the illuminance value of normal lighting on the main working surfaces of the fire control room, emergency generator room, power distribution room and telephone room. The clean workshop in the pharmaceutical industry is a closed workshop, with many internal partitions, complicated indoor personnel flow routes, and roundabout entry and exit passages. To facilitate the evacuation of personnel in the event of an accident and to rescue and extinguish fires during a fire, the clean workshop should be equipped with emergency lighting for evacuation . Marking lights shall be installed at the corners of installation exits, emergency exits, evacuation exits and evacuation passages to facilitate the evacuation personnel to identify the direction of traffic and quickly evacuate the accident scene. Red emergency lights are set at the dedicated fire exits so that firefighters can enter the workshop in time to extinguish the fire. Emergency lighting system generally recommends the use of lamps with battery energy storage. Each area is evenly distributed according to 25% to 30% of the total number of lamps. The shape of emergency lamps is the same as that of normal lamps. Usually, as a part of normal lighting, the battery is in a charged state. When there is a sudden power outage, it will automatically switch to the battery power supply state, and the lamps with energy storage inside will start working for the operator to do the aftercare before leaving. It is also possible to adopt a form in which some lamps and lanterns are additionally provided with dedicated lighting circuits and are powered by EPS or diesel generators, depending on the specific conditions of the project. 1.6 Selection and installation of lighting fixtures in hazardous clean areas with explosion-proof areas The selection and installation of lighting appliances for medical clean rooms (areas) with explosion-proof requirements shall firstly comply with the relevant provisions of the current national standard GB50058 "Design Specifications for Electrical Apparatus for Explosive and Fire Hazardous Environments", and at the same time consider meeting the requirements for cleanliness.

    2023 07/04

  • Engine Cleaning Machine Auto Workshop Equipment Car Workshop Equipment
    Engine Cleaning Machine Auto Workshop Equipment Car Workshop Equipment Model NO.: CCS1500 Function: Remove Carbon From Engine Material: Stainless Steel Condition: New Main Market: Western Europe Water Consumption: 1L/H Rated Power: 4.5kw/H AC Voltage: 380V,50-60Hz Gross Weight: 190kgs Size: 1070*670*1020mm Delivery: 3-7days After Payment Carbon Cleaning Time: 15mins Carbon Cleaning Method: Oxyhydrogen Gas Feed Into Engine Carbon Cleaning for: 1.0-5.0 Diesel Gasoline Plg All Types of Engine Machine for: Car Garage,Car Workshop Carbon Cleaning Service Trademark: Okay Energy Transport Package: Standard Export Carton; 1set/Carton Specification: gas output 1500L/H +/-10% Origin: Hunan, China HS Code: 8405100000 Model NO.: CCS1500 Function: Remove Carbon From Engine Material: Stainless Steel Condition: New Main Market: Western Europe Water Consumption: 1L/H Rated Power: 4.5kw/H AC Voltage: 380V,50-60Hz Gross Weight: 190kgs Size: 1070*670*1020mm Delivery: 3-7days After Payment Carbon Cleaning Time: 15mins Carbon Cleaning Method: Oxyhydrogen Gas Feed Into Engine Carbon Cleaning for: 1.0-5.0 Diesel Gasoline Plg All Types of Engine Machine for: Car Garage,Car Workshop Carbon Cleaning Service Trademark: Okay Energy Transport Package: Standard Export Carton; 1set/Carton Specification: gas output 1500L/H +/-10% Origin: Hunan, China HS Code: 8405100000 engine cleaning machine auto workshop equipment car workshop equipment Okay CCS series product specification Model Number CCS1000 CCS1500B AC Voltage Requirement (V) 220~240V,single phase 380, 3phase AC Current (A) <15 <15 Rated Power(KW) 3 4.5 Max. Gas Output(L/h) 1000 1500 Max. Working Pressure (Mpa) 2 2 Max. Water Consumption (L/h) 0.6 1 Weight (kg) 130 180 Machine Design Feature for van mobile carbon cleaning service for car garage or workshop carbon cleaning service Dimensions - L*W*H (mm) 640*540*1000 1070*670*1020 Product Description Newest Version, Most Advanced Only One Manuacturer In CHINA! PLC full miro-computer control system + Wireless detection technology + Touch Screen Okay Energy carbon buildup cleaning automobile carbon cleaner machine Instead of traditional Disassembly and Foam Or Chemical liquid cleaning methods 1. consumes water + electricity to create oxy-hydrogen gas 2. input the oxyhydrogen gas into engine 3. cleaning time just 15 mins 4. remove the accumulated carbon and increasing the combustion efficiency of the existing fuel. 5. draining from exhaust pipe. No need to remove engine, No harm to engine and human and environment. Save much cost.

    2023 06/23

  • Workshop dehumidifier working principle
    Workshop dehumidifier working principle The workshop dehumidifier consists of a compressor, a heat exchanger, a fan, a water container, a casing and a controller. The working principle of the workshop dehumidifier is: The workshop dehumidifier draws humid air into the machine by the fan, and passes through the heat exchanger. At this time, the water in the air condenses into water droplets, and the dry air is discharged outside the machine, and the circulation reduces the humidity in the room. 1. External circulation of the workshop dehumidifier: in the case of normal startup → through the operation of the fan → humid air inhaled from the air inlet → through the evaporator → evaporator to adsorb the water in the air on the aluminum sheet → become dry Air → heat through the condenser → blow out from the air outlet. 2. Internal circulation of the workshop dehumidifier: discharge high temperature and high pressure gas through the operation of the compressor → exhaust port → enter the condenser to cool → become low temperature and high pressure gas → cut through the capillary → become low temperature and low pressure liquid → through the evaporator Evaporation heat absorption → return to the compressor to become a low temperature and low pressure gas.

    2023 06/23

  • Clean and dust-free workshop purification project completion acceptance problem
    Clean and dust-free workshop purification project completion acceptance problem The completion acceptance of the clean room-cleaning plant is carried out in a single machine test in each branch, and the test is not carried out after the self-test of the production load system. The completion acceptance is the verification of the single-machine test and the no-production load system test of each branch project, the clean room (zone) performance parameter detection and debugging, the inspection quality inspection of each branch, and the function detection and debugging as required. 1. When the clean factory is completed and accepted, the materials for completion and acceptance shall be carefully checked, generally including the following documents and records: 1 Drawing review records, design change notices and as-built drawings; 2 The factory qualification certificate and the entry inspection report of the main equipment, materials and instruments of each division project; 3 Single equipment, system installation and inspection records of each division project; 4 Single-machine test run records of each branch; 5 No-load trial operation and commissioning records of each branch project and system; 6 Various types of pipeline tests and inspection records; 7 Inspection and commissioning records of safety facilities of each division project; 8 Quality acceptance records for each division project. 2. The main test contents of the completion acceptance of the clean factory are as follows: 1 airflow visual inspection; 2 wind speed and air volume test; 3 air filter leak detection; 4 Sealing test of clean room (area); 5 static pressure difference test between rooms; 6 air cleanliness level; 7 self-cleaning time; 8 temperature, relative humidity; 9 illuminance value; 10 noise level; 11 Other testing items that the builder needs to carry out. 3. The completion acceptance of the clean workshop is qualified, and after verification and approval, the function acceptance is carried out according to the requirements. The function acceptance is tested in [static". The main test contents are as follows: 1 Detect air cleanliness level; 2 If there are requirements in the production process, microbiological testing or chemical contaminant testing or special surface cleanliness testing shall be carried out; 3 stability test of temperature and relative humidity of clean room (zone); 4 detecting self-cleaning time; 5 Test the airtightness test of the clean room (area); 6 measuring the illuminance; 7 determine the noise level; 8 Confirm and record the airflow pattern and the number of air changes when needed; 9 Other testing items that need to be performed. 4. After the acceptance of the clean factory, the acceptance report shall be prepared. The main contents are as follows: 1 Description of the opening status of various facilities (including production process equipment) in the clean workshop; 2 description of the clean room (district) personnel and their activities; 3 sub-test records and analysis opinions (including test point location, coordinates, etc.); 4 valid verification certificate of the test instrument; 5 Acceptance of relevant conclusions. have a pleasant workday! Thankyou&Bestregard! SUJING-JINGHUA

    2023 06/10

  • What level of clean area is the ultra-clean workbench, and what is the air cleanliness of the ultra-clean workbench?
    What level of clean area is the ultra-clean workbench, and what is the air cleanliness of the ultra-clean workbench? The cleanliness level of the ultra-clean workbench: Class 100 (class 5 of the international ISO14644.1 standard). The ultra-clean workbench is a one-way air purification equipment that provides a local dust-free and sterile working environment. Its use has good effects on improving process conditions, improving product quality and increasing yield. The ultra-clean workbench is widely used in scientific research and production departments that require a local clean and sterile working environment, such as medicine and health, biopharmaceuticals, food, medical scientific experiments, optics, electronics, sterile room experiments, sterile microbiological inspections, plant tissue culture inoculation, etc. . As a kind of air purification equipment, what level of clean area is the ultra-clean workbench? Air cleanliness class is a class standard that is divided by the maximum concentration limit of particles greater than or equal to the particle size considered in the unit volume of air in a clean space. my country's air cleanliness class standards are divided into: class 100, class 1000, class 10,000, and class 100,000. Class, and the cleanliness of the ultra-clean workbench: Class 100 (International ISO14644.1 standard CLASS 5). The ultra-clean workbench is designed to protect the experimental materials. The highlight is that it is sterile and dust-free, so that the reagents and other operations in the workbench can be protected from contamination. The air is sucked into the pre-filter through the fan, and filtered through the static pressure box into the high-efficiency filter, and the filtered air is sent out in the state of vertical or horizontal air flow, so that the operating area can reach a hundred-level cleanliness and ensure the production's requirements for environmental cleanliness . Only the sample can be protected, not the operator.

    2023 06/05

  • Food QS clean and clean workshop planning and decoration
    Food QS clean and clean workshop planning and decoration Food QS clean room, clean workshop design and decoration: Zhongjing Global Purification () can provide consulting services, consulting, design, construction and decoration services for food workshops, QS clean workshops and clean workshops. Food QS purification workshop overall requirements: Food and beverage sterile clean workshops are best isolated from the outside world and cannot be walked through or interfered with by other factors. The size of the sterile clean workshop is determined by the needs, usually consisting of the dressing room, buffer room, air shower room and operation room. The dressing room is placed outside, mainly for changing clothes and hats, shoes, etc.; the buffer room is located between the dressing room and the air shower room, and can also communicate with several operation rooms at the same time; the operation room is placed inside, mainly for product filling, room It should not be exposed to direct sunlight, of appropriate size and height (depending on the height of the production equipment). The room is too large, cleaning and disinfection is inconvenient; too small, inconvenient to operate; the top too high will affect the effective sterilization effect of ultraviolet light. The walls should be smooth and free of dead ends for cleaning and disinfection. The food and beverage sterile clean workshop should be closed and keep the static pressure difference of the workshop as positive pressure. The ultraviolet lamp, air filter purifier and thermostat for air disinfection should be installed. Structural requirements: According to the [Code for Design of Clean Plants", the walls and ceilings of the workshop must be constructed of materials that are not dust-producing or smooth, and that there is no dead space in the workshop. The special color plate for the construction of the purification plant is used. The top plate of the substrate is made of Baosteel 0.4 steel plate, the core material density reaches 14kg/m3, and the aluminum material is made of special aluminum profile. In order to improve the service life of the purification room and achieve the beautiful appearance, all the aluminum profiles are carried out. Electrophoresis treatment. Food QS purification workshop ground requirements: The solvent is epoxy on the ground, the strength is above C20, the surface is compact, and there is no sand, hollow drum or crack. The color is gorgeous, the anti-static performance is constant, and it can withstand medium-low loads and high temperature resistance. On the basis of satisfying the use, it can play the role of decoration, wear-resistant, wash-resistant, dust-proof, anti-slip, excellent performance, uniform color and gloss. Lighting requirements: Ceiling-type purification lamps should be used in the clean area, and ordinary fluorescent lamps should be used in the non-clean areas. The lighting in each room is designed, and the UV lamps are independently controlled, and are controlled by the electric control box, and then controlled by the main power distribution cabinet; the indoor lighting adopts the closed lighting group; the socket plates are embedded; the indoor line is not laid. Clean plant design, according to the requirements of the specification, design a return air system. The machine room is located on the top side of the plant (according to the actual situation, the unit type purification system can be used without the machine room), and the return air circulation ducts are connected to the air conditioning unit in the technical interlayer to form a system. The return air duct is made of high-quality galvanized steel sheet, which is softly connected by a damper, and the galvanized steel duct is produced on site.

    2023 06/02

  • Mcab Workshop Clean Pipes and Medical or Pharmaceutical Equipment
    Mcab Workshop Clean Pipes and Medical or Pharmaceutical Equipment Model NO.: pm-01 Customized: Customized Condition: New Warranty: 1 Year Specification: Customized Origin: China For all our products, we can also produce according to your drawings, if our standards do not meet your needs. Cooperative enterprise project picture

    2023 05/15

  • Lighting design of clean workshop in pharmaceutical industry
    Lighting design of clean workshop in pharmaceutical industry O Introduction With the development of GMP clean technology at home and abroad in recent years, the requirements for the production environment of the pharmaceutical industry are becoming higher and higher, and the design of clean workshops is becoming more and more important. In order to implement the relevant national policies and the "Pharmaceutical Production Quality Management Standards" in the design of clean workshops in the pharmaceutical industry, to achieve advanced technology, economical application, safety and reliability, ensure quality, and meet the requirements of energy conservation and environmental protection, the state renewed in 2008 GB50457-2008 "Code for Design of Clean Workshops in the Pharmaceutical Industry" was released. The cleanliness of air in the clean workshop of the pharmaceutical industry is divided into one hundred, ten thousand, one hundred thousand and more than one hundred thousand (equivalent to three hundred thousand). The process is complicated and the environment is complex. The electrical design needs to closely cooperate with the process and heating. Through professional studies, the following is a brief discussion of the electrical lighting design in the clean workshop of the pharmaceutical industry. 1 Lighting design of clean workshop 1.1 Illuminance and illuminance uniformity According to the study of visual function, it can be seen that the illuminance function when the contrast sensitivity changes, before reaching a certain contrast sensitivity value, it is very effective to increase the illuminance to improve the contrast sensitivity. The clean workshops of the pharmaceutical industry are closed workshops, and the interiors are mostly windowless rooms (areas). The International Lighting Commission (CIE) "Indoor Lighting Guide" stipulates that the minimum illumination of windowless workshops should not be less than 500 lx. According to the current power level in China, it should meet the basic requirements for lighting. When the minimum illumination is 150lx, it can basically meet the physical and psychological requirements of workers. In order to improve production efficiency, Article 14 of China's GMP (1998) stipulates that "the illumination of the main studio is declared to be 300 lx; production sites with special requirements for the contrast degree can be provided with local lighting". As for auxiliary studios, corridors, air lock rooms, personnel purification and material purification rooms, considering the light and dark adaptation to the production workshop, the illuminance should not be lower than 150lx. Illuminance uniformity refers to the ratio of the minimum illuminance on the specified surface to the average illuminance. When the illuminance ratio is appropriate, it can reduce fatigue and focus, so that there will not be a dark feeling when looking around the room. In the main working room of the medical clean room (area), the illuminance uniformity of lighting should not be less than 0.7, which is generally satisfied in engineering design. 1.2 Selection of light source The clean workshops in the pharmaceutical industry have little natural ventilation. Generally, air supply and exhaust vents are provided in rooms and corridors in the purification area, and mechanical air supply and exhaust are performed through purified air conditioners. The increase in the number of air vents and the installation position limits the number of lamps and the installation position of the lamps. This requires that the number of lamps be minimized under the same illumination conditions. It is appropriate to use efficient light sources as the purification area (room) light source. The luminous efficiency of high-efficiency fluorescent lamps is generally several times that of incandescent lamps, and the light source is a cold light source, which is not easy to heat. This not only meets the requirements for high efficiency of lamps and lanterns, but also reduces the energy consumption of air conditioners and meets the energy-saving requirements. The pharmaceutical industry has less natural lighting. During working hours, the lamps generally need to be in working condition for a long time, which requires that the light source at work is closer to the natural light source. The spectral distribution of the light source of the fluorescent lamp is close to natural light, which can meet the requirements of the light source. At present, medical clean rooms (areas) with high contrast requirements generally use fluorescent lamps as light sources at home and abroad. 1.3 Selection of lamps The function of the lamp is to protect the light source and to work in various environments, and to comply with appropriate safety standards. Since there are certain requirements for air cleanliness in the clean workshop, the production of medicines needs to be disinfected and sterilized regularly. Therefore, the lamps in the clean room (area) should be lighting lamps that are simple in shape, not easy to accumulate dust, easy to clean, and easy to disinfect and sterilize. . 1.4 Installation of lamps The environment of the clean factory room (area) is different from the ceiling. The installation of lighting fixtures will directly affect the clean room (area) from the pollution of the ceiling. The clean room (area) lamps generally have two installation methods: ceiling mounted surface installation and embedded ceiling concealed installation. Embedded ceiling installation will increase the opening area of the ceiling, which not only makes it difficult to seal the opening of the roof during the construction process, but also the roof The upper opening seal is easy to be walked by the maintenance personnel to repair the equipment on the lifting item, causing the opening seal to rupture and form a communication with the clean room (area), causing pollution to the clean room (area). Although lighting fixtures are not the main source of dust in the clean room (area), if not installed properly, dust particles will penetrate into the clean room (area) through the gap between the lights. Moreover, it is embedded in the ceiling to install lamps, the investment is relatively large, and the luminous efficiency is relatively low. Practice has proved that in a non-unidirectional flow clean room, the choice of lighting fixtures will not reduce the air cleanliness level. In view of the above reasons, the lamps in the general clean area (room) should be mounted on the ceiling. If the installation of lamps and lanterns is restricted by the height of the layer and the special requirements of the process must be concealed, the size of the opening should be accurate, and it must be sealed to prevent dust particles from seeping into the clean room (area). 1.5 Selection of emergency lamps Emergency lighting refers to lighting that is activated due to the failure of normal lighting power. Emergency lighting includes evacuation lighting, safety lighting and backup lighting. If the lighting of the clean workshop of the pharmaceutical industry is interrupted due to power supply accidents, some pharmaceutical production will be scrapped, and some will cause fires, explosions, and poisoning accidents. It will bring danger and loss to personal safety and property. In the event of accidents and situations, standby lighting should be installed in the clean workshop of the pharmaceutical industry. The illuminance of the backup lighting should meet the required field The minimum illumination of the operation of the location or location. The illuminance of the standby lighting should not be lower than the illuminance value of normal lighting on the main working surfaces of the fire control room, emergency generator room, power distribution room and telephone room. The clean workshop in the pharmaceutical industry is a closed workshop, with many internal partitions, complicated indoor personnel flow routes, and roundabout entry and exit passages. To facilitate the evacuation of personnel in the event of an accident and to rescue and extinguish fires during a fire, the clean workshop should be equipped with emergency lighting for evacuation . Marking lights shall be installed at the corners of installation exits, emergency exits, evacuation exits and evacuation passages to facilitate the evacuation personnel to identify the direction of traffic and quickly evacuate the accident scene. Red emergency lights are set at the dedicated fire exits so that firefighters can enter the workshop in time to extinguish the fire. Emergency lighting system generally recommends the use of lamps with battery energy storage. Each area is evenly distributed according to 25% to 30% of the total number of lamps. The shape of emergency lamps is the same as that of normal lamps. Usually, as a part of normal lighting, the battery is in a charged state. When there is a sudden power outage, it will automatically switch to the battery power supply state, and the lamps with energy storage inside will start working for the operator to do the aftercare before leaving. It is also possible to adopt a form in which some lamps and lanterns are additionally provided with dedicated lighting circuits and are powered by EPS or diesel generators, depending on the specific conditions of the project. 1.6 Selection and installation of lighting fixtures in hazardous clean areas with explosion-proof areas The selection and installation of lighting appliances for medical clean rooms (areas) with explosion-proof requirements shall firstly comply with the relevant provisions of the current national standard GB50058 "Design Specifications for Electrical Apparatus for Explosive and Fire Hazardous Environments", and at the same time consider meeting the requirements for cleanliness.

    2023 05/10

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