How does the dust-free workshop project network ion fan purify the air?
1. In the clean room project, except for the DC system and the system with on-duty fans, anti-inundation measures should be taken to prevent outdoor polluted air from entering the clean room through the fresh air outlet.
2. When determining the centralized or decentralized clean air conditioning system, the characteristics of the production process and the cleanliness level, area, location and other factors of the clean room air should be comprehensively considered.
3. For air purification treatment of each level of air cleanliness in the dust-free workshop project, three-stage filtration of primary, medium and high efficiency air filters should be adopted. For 100000 level air purification treatment, sub-high efficiency air filters can be used instead of high efficiency air filters.
4. If the purified air conditioning system requires electric heating, a tubular electric heater should be selected, which should be arranged on the upwind side of the high efficiency air filter, and fire safety measures should be taken.
5. The selection, arrangement and installation of air filters should comply with the following requirements: primary air filters should not be oil-immersed filters; medium-efficiency air filters should be centrally installed in the positive pressure section of the purified air conditioning system; high-efficiency air filters or sub-high-efficiency air filters should be installed at the end of the purified air conditioning system. The installation of high-efficiency air filtration should be simple and reliable, and leak detection and replacement are convenient; medium-efficiency, sub-high-efficiency and high-efficiency air filters should be selected according to the rated air volume; high-efficiency air filters with similar resistance and efficiency should be installed in the same purification workshop.
6. The air blower can be selected according to the total air supply volume and total resistance value of the purified air conditioning system. The resistance of medium-efficiency and high-efficiency air filters should be calculated as twice their initial resistance.
7. The design of the purified air conditioning system should make reasonable use of return air. If a large amount of harmful substances are produced in the process and the local treatment cannot meet the hygiene requirements, or it is harmful to other processes, return air should not be used.
