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High-efficiency air filter HEPA filtration precision improvement method
High-efficiency air filter HEPA filtration precision improvement methodHow can we guarantee the filtration accuracy of our high-efficiency air filters HEPA?To ensure that our filters are intact and not damaged. To improve the filtration accuracy when the filter is intact, we need to improve the sealing of our filters. If you want to improve the sealing of the high-efficiency air filter HEPA can only use a good bit of sealing strips and sealant, what methods can be used to improve the sealing effect of the high-efficiency filter, the poor sealing effect of the high-efficiency filter is caused by many aspects, and not just the quality of the high-efficiency filter itself. Through the use of the negative pressure leakage sealing method, the positive pressure space of the polluted air, through human intervention means to transfer to the negative pressure space outside the work area, to ensure that the work area is not polluted. Contact filler sealing method, this method is sealed with filler with a solid gasket, such as closed-cell sponge rubber plate, etc., and liquid sealant, such as silicone rubber, natural rubber, etc., solid gasket is usually used bolt mother mechanical compression sealing method, rubber plate compression is generally 30%6-50%, the liquid sealant is sealed by filling and adhesion method, sealing method is also clean room more commonly used sealing method. Liquid slot mouth sealing method, this method is in the slotted frame, injected with a certain height of the non-Newtonian sealing liquid, the mouth of the pharmaceutical plant high-efficiency filter inserted into the sealing liquid, so that both sides of the air pathway is blocked, to achieve the purpose of sealing, this sealing method is reliable, filter disassembly and installation is convenient, usually applied to 100, 10 and higher levels of cleanliness of the clean room seal. |
