There are many types of clean room, such as clean room for the production of electronic products, pharmaceuticals, health care products, food, medical equipment, precision machinery, fine chemicals, aviation, aerospace, and nuclear industry products. These different types of clean room include scale, product production processes, etc. In addition, the biggest difference between various types of clean room is the different control objectives of pollutants in the clean environment; a typical representative that aims to mainly control pollutant particles is the clean room for the production of electronic products, which mainly controls microorganisms and particles. A typical representative of the target is a clean room for pharmaceutical production. With the development of science and technology, high-tech electronic industry clean workshops, such as ultra-large clean rooms for integrated circuit chip production, should not only strictly control nano-scale particles, but also strictly control chemical pollutants/molecular pollutants in the air.
The air cleanliness level of various types of clean room is related to the product type and its production process. The current cleanliness level required for clean room in electronics industry is IS03~8. Some clean rooms for the production of electronic products are also equipped with product production process equipment. The micro-environment device has a cleanliness level of up to IS0 class 1 or ISO class 2; the clean workshop for pharmaceutical production is based on multiple versions of China's "Good Manufacturing Practice for Pharmaceuticals" (GMP) for sterile drugs, non-sterile drugs, There are clear regulations on clean room cleanliness levels for traditional Chinese medicine preparations, etc. China's current "Good Manufacturing Practice for Pharmaceuticals" divides the air cleanliness levels into four levels: A, B, C, and D. In view of various types of clean room have different production and product production processes, different scales, and different cleanliness levels. The professional technology, equipment and systems, piping and piping technology, electrical facilities, etc. involved in the engineering construction are very complicated. The engineering construction contents of various types of clean room are different.
For example, the construction content of clean workshops in electronics industry is quite different for the production of electronic devices and the production of electronic components. The construction content of clean workshops for the pre-process and packaging process of integrated circuit production is also very different. If it is microelectronic products, The engineering construction content of clean room, mainly for integrated circuit wafer production and LCD panel manufacturing, mainly includes: (excluding the main structure of the factory, etc.) clean room building decoration, purification air conditioning system installation, exhaust/exhaust system and its treatment facility installation, water supply and drainage facility installation (including cooling water, fire water, pure water/high-purity water system, production wastewater, etc.), gas supply facility installation (including bulk gas system, special gas system, compressed air system, etc.), chemical supply system installation, installation of electrical facilities (including electrical cables, electrical devices, etc.). Because of the diversity of gas sources of gas supply facilities, water source facilities of pure water and other systems, and the variety and complexity of related equipment, most of them are not installed in clean factories, but their piping is common.
The construction and installation of noise control facilities, anti-micro vibration devices, anti-static devices, etc. in clean rooms are introduced. The construction contents of clean workshops for pharmaceutical production mainly include clean room building decoration, construction and installation of purification air-conditioning systems, and installation of exhaust systems. , installation of water supply and drainage facilities (including cooling water, fire water, production wastewater, etc.), installation of gas supply systems (compressed air systems, etc.), installation of pure water and water injection systems, installation of electrical facilities, etc.
From the construction content of the above two types of clean workshops, it can be seen that the construction and installation contents of various clean workshops are generally similar. Although the "names are basically the same, the connotation of the construction content sometimes differs greatly. For example, the construction of clean room decoration and decoration content, clean workshops for the production of microelectronic products generally use ISO class 5 mixed-flow clean rooms, and the floor of the clean room adopts a raised floor with return air holes; Below the raised floor of the production floor is the lower technical mezzanine, and above the suspended ceiling is the upper technical mezzanine. Usually, the upper technical mezzanine is used as the air supply plenum, and the lower technical mezzanine is used as the return air plenum; The air and supply air will not be contaminated by pollutants. Although there is no cleanliness level requirement for the upper/lower technical mezzanine, the floor and wall surfaces of the upper/lower technical mezzanine should generally be painted as necessary, and usually on the upper/lower technical mezzanine The technical interlayer can be equipped with corresponding water pipes, gas pipes, various air pipes, and various water pipes according to the piping and wiring (cable) layout needs of each profession.
Therefore, various types of clean room have different uses or construction purposes, different product varieties, or even if the product varieties are the same, there are differences in scale or production processes/equipment, and the construction content of clean room is different. Therefore, the actual construction and installation of specific clean room projects should be carried out in accordance with the requirements of the engineering design drawings, documents and the contract requirements between the construction party and the owner. At the same time, the provisions and requirements of relevant standards and specifications should be conscientiously implemented. On the basis of accurately digesting the engineering design documents, feasible construction procedures, plans and construction quality standards for specific clean engineering projects should be formulated, and the clean room projects undertaken should be completed on schedule and with high-quality construction.
Post time: Aug-30-2023