空气净化器检测用环境试验舱研制及性能评价  

Development and performance evaluation of environmental chamber for air cleaner detection

作　　者：丁萌萌[1] 李增和[1] 邓高峰[2] 王智超[2] 

机构地区：[1]北京化工大学理学院,北京100029 [2]中国建筑科学研究院,国家空调设备质量监督检验中心,北京100013

出　　处：《环境工程学报》2010年第6期1384-1388,共5页Chinese Journal of Environmental Engineering

基　　金：“十一五”国家科技支撑计划项目(2006BAJ02A06)

摘　　要：研制一种大型环境试验舱,该舱整体构造主要由内舱、外舱、空气净化系统、污染源发生装置和空气采样系统组成。其中,内舱为测试舱主体部分,体积为30 m3。对舱的性能进行评价测试,结果表明:温度和相对湿度的偏差分别为δT≤2.5℃和δRH≤5%;环境舱内外压差在0～5 Pa时,舱体泄漏量为0.03～1.02 m3/h;清洗后,舱内单项污染物本底浓度小于20μg/m3,总挥发性有机物(TVOC)小于90μg/m3;以质量分数为37%的甲醛溶液作代表性污染物,4种投放量下回收率分别为86.6%、83.4%、82.9%和81.5%;舱内温度为21℃,相对湿度为40%时,甲醛、苯、甲苯等3种污染物自衰减分别为6.7%、8.9%和4.7%。实验结果表明该试验舱应用性能良好,可用于检测空气净化器性能及净化效率。A large-scale environmental chamber was developed,which was made of the inner chamber,outer chamber,air purification system,pollution source device and air sampling system.Among them,the inner chamber with the volume of 30 m^3 is the key part of the test chamber.The experimental result shows that the deviation of temperature and relative humidity are δT ≤2.5℃ and δRH≤5% respectively.The body leakage is 0.03～1.02 m^3/h under pressure difference of 0～5 Pa between the inside and the outside of the chamber.After cleaning,with the single pollutant background concentration less than 20 μg/m^3,total volatile organic compounds（TVOC） is less than 90 μg/m^3.The recovery rates of the chamber system are 86.6%,83.4%,82.9% and 81.5% under four kinds of amount of 37% formaldehyde solution for the representation of pollutants.Under the conditon of 21℃ and RH 40%,the natural decay of three kinds of pollutants which are formaldehyde,benzene and toluene in this chamber are 6.7%,8.9% and 4.7%,respectively.Experimental result shows that the environmental chamber runs well and can be used to detect the performance of air cleaners.

关 键 词：环境试验舱 空气净化器 本底浓度 回收率 自衰减 

分 类 号：X830[环境科学与工程—环境工程]