空调系统中不同空气消毒方法消毒效果观察

为了解通风空调系统循环空气的消毒方法的效果,采用现场试验的方法对高效过滤、激光照射、静电吸附、紫外线照射和臭氧熏蒸等空调空气消毒方法进行了观察。结果,高效过滤和激光照射方法一次通过时自然菌消亡率大于90%;静电吸附经过运行15 m in,除菌率为62%;紫外线照射方法在消毒系统运行90 m in后对自然菌消除率大于90%。臭氧空调消毒装置在臭氧量保持3.48 mg/m3,运行90 m in,对自然菌消除率可达到90%以上。结论,空调系统消毒装置以激光和高效过滤除菌效果最好,紫外线辐射、静电及臭氧均需要运行一定时间之后才显除菌效果。

OBSERVATION ON AIR DISINFECTION EFFICACY OFDIFFERENT METHODS BY AIR CONDITIONING SYSTEM

In order to know the efficacy of method for disinfection through circulating air of ventilation air conditioning system,field test method was used to observe the methods for disinfection of air through air conditioner including high-performance filtration,laser irradiation,electrostatic adsorption,ultraviolet irradiation and ozone fumigation.Results: The natural bacteria decay rate after passing through high-performance filtration and laser irradiation once was >90%,the bacteria eliminating rate after electrostatic adsorption for 15 min was 62% and the natural bacteria eliminating rate after ultraviolet irradiation during operation of the disinfection systen for 90 min was >90%.Operation of the ozone air-conditioning disinfection apparatus for 90 min with ozone concentration of 3.48 mg/m~3 could eliminate over 90% of natural bacteria.Conclusion: Laser irradiation and high-performance filtration among the air-conditioning disinfection apparatuses give the best bacteria-eliminating efficacy,while operation for a certain period of time is required for ultraviolet radiation,electrostatic adsorption and ozone to produce bacteria-eliminating efficacy.