背景浓度对无风管自净型排风柜过滤效率影响的研究
Influence of background concentration on filtration efficiency of ductless self-filtration vented enclosure
摘要：
根据《无风管自净型排风柜》标准对某台无风管排风柜进行实测，研究和分析了污染物背景浓度对无风管排风柜过滤效率的影响，得到当实验室的污染物背景浓度比较高时，过滤器效率显著下降的结论，并提出了适合无风管自净型排风柜运行的实验室背景浓度限值。
关键词：无风管自净型排风柜,过滤效率,背景浓度,吸附量,饱和时间
Abstract：
Based on testing one ductless vented enclosure according to the Ductless self-filtration vented enclosure standard, studies and analyses the influence of background concentration on the filtration efficiency. The results show that with the relatively high laboratory background concentration the filtration efficiency decreased significantly. Recommends an appropriate laboratory background concentration limit for operating the ductless vented enclosure.
Keywords:ductlessself-filtrationventedenclosure,filtrationefficiency,backgroundconcentration,adsorptioncapacity,saturationtime