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目的研究电子式空气净化消毒装置在集中空调通风系统中的除菌、除尘效果。方法选取11套装有电子式空气净化消毒装置的集中空调通风系统,在其电子式空气净化消毒装置前、后端及空调送风口部位进行空气微生物及PM10监测。结果(1)电子式空气净化消毒装置细菌总数消除率均值为(89.45±9.49)%,真菌总数消除率均值为(86.84±17.60)%,PM10净化率均值为(98.74±3.43)%;(2)11套集中空调通风系统送风指标中:细菌总数、真菌总数、β-溶血性链球菌合格率均为100.00%。结论:电子式空气净化消毒装置能够改善集中空调送风空气卫生质量,但除菌效果尚不够稳定。
Objective To study the bacteriostasis and dust removal effects of electronic air purification and disinfection devices in centralized air conditioning and ventilation systems. Methods Eleven sets of centralized air conditioning and ventilation systems with electronic air purification and disinfection devices were selected. Airborne microbes and PM10 were monitored at the front and back ends of the electronic air purification and disinfection devices as well as the air outlet of the air conditioner. Results The average removal rate of total bacterial count was (89.45 ± 9.49)%, the average removal rate of total fungi was (86.84 ± 17.60)% and the average purification rate of PM10 was (98.74 ± 3.43)%. (2) ) 11 sets of centralized air conditioning and ventilation system in the air indicators: the total number of bacteria, the total number of fungi, β-hemolytic streptococcus pass rate of 100.00%. Conclusion: The electronic air purification and disinfection device can improve the hygienic quality of the ventilation air in centralized air conditioners, but the sterilization effect is not yet stable enough.