相对湿度对空气净化器颗粒物衰减速率的影响  

Effect of relative humidity on decay rate of particulate matter by air cleaner

作　　者：戴锦鹏 曲云霞[1] DAI Jin-peng;QU Yun-xia

机构地区：[1]山东建筑大学热能工程学院,山东济南250101

出　　处：《节能》2023年第9期43-46,共4页Energy Conservation

摘　　要：为了探究室内相对湿度对空气净化器净化颗粒物效果的影响,通过实验研究空气净化器对不同粒径颗粒物衰减速率的影响,同时研究有无加湿环境条件以及不同相对湿度对空气净化器颗粒物衰减速率的影响。结果显示:室内颗粒物直径越大,污染物浓度衰减越快。空气净化器对颗粒物的净化过程分为3个阶段:初始段、快速净化段和稳定段。加湿器的运行只对快速净化段内颗粒物的净化有促进作用;室内空气相对湿度为30%~50%时,相对湿度的变化对颗粒物净化效果的影响较小;室内污染物初始浓度较低(10~900μg/m3)时,随着相对湿度增加,PM2.5的浓度迅速衰减,净化效果增强。In order to investigate the influence of indoor relative humidity on the effect of air cleaner purification of particulate matter,the effect of air cleaner on the decay rate of particulate matter of different particle sizes was studied experimentally,and at the same time the influence of the decay rate of particulate matter of the air cleaner under the conditions of humidified environment with or without humidification and with different relative humidity was studied.The results show that the larger the diameter of indoor particles,the faster the decay of pollutant concentration.The purification process of air cleaner on particles can be divided into three stages:the initial section,the rapid purification section and the stabilisation section.The operation of the humidifier only promotes the purification of particulate matter in the rapid purification section.When the relative humidity of the indoor air is in the range of 30%~50%,the change of the relative humidity has less influence on the purification of particulate matter,and when the initial concentration of indoor pollutants is low(10~900μg/m'),with the increase of the relative humidity,the concentration of PM2.5 decays rapidly,and the purification effect is increased.

关 键 词：颗粒污染物 空气净化器 相对湿度 衰减速率 加湿器 

分 类 号：TU834.8[建筑科学—供热、供燃气、通风及空调工程]