空气过滤器组合效率及选型研究

Research on the Combination Efficiency and Type Selection of Air Filters

合理选择空调系统的空气过滤器,是降低室内细颗粒物(PM_(2.5))污染浓度的主要途径之一。本文利用空调机组过滤性能实验台,对单个过滤器和不同过滤器组合进行PM_(2.5)的计数效率和计重效率的测试。研究了单个过滤器对PM_(2.5)计数效率和计重效率的相关关系,给出了不同室外PM_(2.5)污染程度对应的空气过滤器选型方案,为建筑室内PM_(2.5)控制提供参考。

For reducing indoor fine particulate matter（PM_（2.5）） concentration,it is important to reasonably choose air filters used in air handling systems. In this paper,thePM_（2.5）counting and weighing efficiency of a single filter and a combination of different filters were tested on an air handling unit filter performance test platform. By studying the correlation between thePM_（2.5）counting and weight efficiency of a single filter,this paper put forth air filter selection schemes for different degrees ofPM_（2.5）pollution. The results may provide a reference for indoorPM_（2.5）control.