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Core performance indicators of laminar flow hoods in pharmaceutical factories
Core performance indicators of laminar flow hoods in pharmaceutical factoriesTo ensure the production stability of drug quality and prevent the production environment from polluting drug production, the production area of the pharmaceutical factory must meet the specified environmental parameter standards before it can be put into production.So, what are the specific parameter indicators of the cleanroom in the production area of the pharmaceutical factory? Generally speaking, the layout of each part of the cleanroom must meet the production process requirements, and clearly specify the direction of human flow, logistics, and airflow to ensure the cleanliness of the cleanroom. The cleanroom standards of pharmaceutical factories usually include the following requirements: (1) The main control objects of the cleanroom standards of pharmaceutical factories are particulate matter and microorganisms. At the same time, it is necessary to specify environmental parameters such as temperature and humidity, fresh air volume, shape difference, illumination, and noise field. (2) In areas with cleanliness levels of 100 and 10000, the temperature is usually controlled at 20~24°C and the relative humidity is 45~60%. The temperature of the 100000 area is generally controlled at 18~28°C and the relative humidity is 50~65%. (3) The ambient air in the cleanroom of a pharmaceutical factory should not contain unpleasant odors and gases that will hurt drug quality and human health. (4) In order to meet the environmental requirements of air cleanliness in the cleanroom, laminar flow hood air purification equipment is usually used. In order to ensure the quality of drugs, specific purification equipment and instruments are needed during the production process to assist in ensuring the quality of products. Pharmaceutical units usually need to use laminar flow hoods other equipment and other clean instruments for operation. These equipment are widely used in electronics, medicine, national defense, science and technology, and bioengineering. Since the workmanship and structure of the laminar flow hood are quite strict, it is recommended that the box body be made of high-quality 304 stainless steel, which is composed of a sus304 box body, high-efficiency filter, variable air volume fan unit, wind speed pressure difference detector, lighting components, and other components. The box body is made of mirror-fingerprint-free stainless steel SUS304, the sheet metal is integrally bent and formed, the structure is sturdy, and the electrical system is safe and reliable. The air passes through the high-efficiency filter at a certain wind speed to form a uniform flow layer (the average wind speed is kept within the rated range of 0.45m/s), so that the clean air flows vertically and unidirectionally, thereby ensuring that the cleanliness of the working area meets the process requirements. Although China can produce a variety of laminar flow hoods, there are relatively few units that meet the relevant national and international standards. As a major manufacturer of laminar flow hoods, Zhongjing Purification is very particular about the production of laminar flow hoods and produces them by the ISO9001 quality production system and other standards. In addition, the configuration, size, and function of the laminar flow hood can be designed, produced, and installed according to customer needs. The following provides the characteristics of the laminar flow hoods produced by Zhongjing Purification. The characteristics of the laminar flow hoods produced by back clean purification generally have the following points; 1. Flexible hoisting above the process point requiring high cleanliness to meet the requirements of local high cleanliness; 2. The box can be made of wall panels, spray-coated cold-rolled steel plates, or all high-quality 304 stainless steel, which is durable; 3. Laminar flow hoods have two types: internal fan and external fan. There are two installation methods: hanging and floor bracket; 4. Use alone to form a return air system or connect in parallel with the pipeline system to form a clean laminar flow area; 5. Low investment, quick results, simple installation; 6. Cleanliness: dust with a particle size of ≥0.5m in the working area is ≤3.5 particles/liter; 7. Noise: ≤ 64 decibels; 8. Average wind speed: 0.3-0.55 m/s; 9. Compared with clean rooms, it has the advantages of low investment, quick results, low requirements for plant construction, easy installation, and power saving. |
