基于双波段紫外光催化杀菌的空气净化器对室内空气污染物的过滤效果验证  

Verification of Filtering Effect of Air Cleaner Based on Dual-band UV Photocatalysis on Indoor Air Pollutants

作　　者：蔺勇智 汪益名 刘东海 梁凯 LIN Yonghi;WANG Yiming;LIU Donghai;LIANG Kai(Infinitus(China)Co.,Ltd.,Guangzhou,Guangdong 510405,China;Department of Building Science,Tsinghua University,Beijing 100084,China;Bejing Key Laboratory of Indoor Air Quality Evaluation and Control,Beijing 100084,China)

机构地区：[1]无限极(中国)有限公司,广东广州510405 [2]清华大学建筑技术科学系,北京100084 [3]室内空气质量评价与控制北京市重点实验室,清华大学,北京100084

出　　处：《建筑科学》2023年第4期152-163,共12页Building Science

摘　　要：本文针对1款应用HEPA高效过滤、活性炭过滤模块、负离子净化技术和双波段紫外光催化杀菌技术的新型空气净化器进行研究,测试验证了其对颗粒物、不同VOCs和微生物的净化效果。通过测量开启净化器后室内空气污染物浓度的下降情况计算了国内某品牌的新型空气净化器对颗粒物、不同VOCs的CADR和净化能效以及对不同微生物的2 h去除率。研究结果表明,该新型空气净化器对颗粒物和细颗粒物的净化能效是国家标准中高效级净化阈值的2倍以上,对绝大多数室内VOCs的净化能效都在国家标准中的高效级净化阈值以上,但是对含S原子的VOCs过滤效果只有醛类VOCs的1/3。该净化器对80%的微生物2 h去除效果都在90%以上,但是对变形菌门的微生物的去除效果待提高。This paper studied a new air cleaner that applies HEPA,carbon filter,negative ion,and dual-band ultraviolet photocatalytic technologies and verified its purification effects on particulate matter,different VOCs,and microorganisms.By measuring the decrease of indoor air pollutant concentration after turning on the cleaner,the CADR and cleaning energy efficiencies for particulate matter,different VOCs,and the 2 h removal rates for different microorganisms of the new domestic brand air cleaner were calculated.The results showed that the cleaning energy efficiencies of the air cleaner for particulate matter and fine particulate matter are more than twice as the high-grade purification threshold in the national standard,and the cleaning energy efficiencies of most VOCs are above the high-grade purification threshold in the national standard.But the purification effects of VOCs containing S atoms are only 1/3 of that of aldehyde V0Cs.The air cleaner realizes a 90%+removal rate in 2 h for 80%of microorganisms,but the removal rate of microorganisms of Proteobacteria still needs improvement.

关 键 词：空气净化器 颗粒物 挥发性有机物 微生物 洁净空气量 净化能效 

分 类 号：TU834.841[建筑科学—供热、供燃气、通风及空调工程]