气溶胶浓度对空气滤材过滤效率的影响与分析  

Influence and Analysis of Aerosol Concentration on Filtration Efficiency of Air Filter Media

作　　者：张万 ZHANG Wan(Aviation Industry(Xinxiang)Metrology and Test Science Technology Co.,Ltd.,Xinxiang,Henan 453019,China)

机构地区：[1]航空工业(新乡)计测科技有限公司,河南新乡453019

出　　处：《汽车零部件》2024年第7期14-18,39,共6页Automobile Parts

摘　　要：粒子计数法是检测空气滤材过滤效率的常用方法之一。为了验证气溶胶浓度和空气滤材的最低效率、最易穿透粒径(MPPS)之间的关系,通过改变气溶胶的流速和鞘气的流速等来实现气溶胶浓度的变化,并分别对不同类型的滤材进行试验,试验得出:当气溶胶浓度发生改变时,滤材过滤效率也会随之发生改变。The particle counter is one of the commonly used methods to test the filtration efficiency of air filter media.In order to verify the relationship between aerosol concentration and the minimum efficiency and the most penetrate particle size(MPPS)of air filter medias,the aerosol concentration was varied by changing the flow rate of aerosol and sheath gas,and different types of filter medias were tested.The conclusion was drawn that when the aerosol concentration changes,the filtration efficiency of filter media will also change.

关 键 词：气溶胶 浓度 空气滤材 MPPS 最低效率 

分 类 号：TU834.83[建筑科学—供热、供燃气、通风及空调工程]