集中空调等离子净化消毒装置对空气中自然菌消除效果评价

The evaluation on efficacy of central air conditioning plasma purifying and sanitizing unit on eliminating the natural bacteria in the air

目的:了解集中空调等离子净化消毒装置对空气中自然菌的消除效果。方法:按《公共场所集中空调通风系统卫生规范》(卫生部2006)进行现场试验。结果:当风速分别为1m/s、2m/s、3m/s时,仅安装等离子发生器的净化消毒装置对空气中自然菌的平均消除率分别为42.92%,35.71%和23.28%;安装等离子发生器和中效过滤器的净化消毒装置对空气中自然菌的平均消除率分别为96.73%、95.53%和90.38%。结论:仅安装等离子发生器的净化消毒装置对空气中的自然菌仅具有一定的消除效果,消除率远低于90%,达不到消毒水平;安装等离子发生器和中效过滤器的净化消毒装置对空气中自然菌消除率均在90%以上,达到消毒水平。

Objective：In order to learn the efficacy of central air conditioning plasma purifying and sanitizing unit on eliminating the natural bacteria in the air.Methods： According toSpecification for hygiene central air conditioning ventilation system of public place（Ministry of Health 2006）,field experiments have been conducted.Results： The average eliminating rate of the natural bacteria is 42.92%,35.71% and 23.28% if the air purifying and sanitizing unit only installed by plasma generator;but 96.73%,95.53% and 90.38%′s average eliminating rate of natural bacteria can be reached if the unit installed by plasma generator and Medium-efficiency bag filter.Conclusion： The air purifying and sanitizing unit only installed by plasma generator has certain effect on eliminating natural bacteria in the air,but much lower than 90%.The one installed by plasma generator and Medium-efficiency bag filter has a very good effect on eliminating the natural bacteria in the air,more than 90%,which meet the requirement of air disinfection..