除臭氧新风净化器的设计与性能研究
摘要：为了降低进入室内的臭氧含量，本文研发了一种能够净化臭氧的新风净化器，使用负载二氧化锰(MnO2)与氧化铜(CuO)的玻璃纤维棉作为滤料，降低臭氧浓度，避免二次污染。为评估新风净化器的性能，对不同背景浓度、过滤风速和滤料使用时长下的一次通过净化效率进行了实测，比较了不同滤料叠放层数量下的净化效率、通流阻力和质量因子等性能指标。研究结果显示，4层滤料叠放层效果最好，背景体积分数为75×10-9时最高效率达75%。在替换新滤料后6周内臭氧净化效率较高，之后效率逐步衰减，12周后基本丧失净化能力。
关键词：臭氧新风净化器通风室内空气质量滤料净化效率
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[5] WESCHLER C J.Ozone's impact on public health:contributions from indoor exposures to ozone and products of ozone-initiated chemistry[J].Environmental health perspectives,2006,114(10):1489- 1496.
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[8] BRITIGAN N,ALSHAWA A,NIZKORODOV S A.Quantification of ozone levels in indoor environments generated by ionization and ozonolysis air purifiers[J].Journal of the air & waste management association,2006,56(5):601- 610.
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[14] OHTANI B,ZHANG S W,NISHIMOTO S I,et al.Catalytic and photocatalytic decomposition of ozone at room-temperature over titanium(IV) oxide[J].Journal of the chemical society,faraday transactions,1992,88(7):1049- 1053.
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Design and performance study of an outdoor air purifier to remove ozone
Abstract: In order to reduce the content of ozone entering the room, this paper proposes an outdoor air purifier that can purify ozone. The glass fiber cotton loaded with manganese dioxide(MnO2) and copper oxide(CuO) is used as the filter material to reduce the ozone concentration and avoid secondary pollution. In order to evaluate the performance of the outdoor air purifier, the single-pass purification efficiencies under different background concentrations, filtration wind speeds and filter material usage times are measured, and the purification efficiency, flow resistance and quality factor under different filter material stack layers are compared. The results show that the four-layer filter material stack layers performs best, with a maximum efficiency of 75% under the background volume fraction is 75×10-9. The ozone purification efficiency is high within 6 weeks after replacing the new filter material, then the efficiency gradually drops and becomes no effect after 12 weeks.
Keywords: ozone; outdoor air purifier; ventilation; indoor air quality; filter material; purification efficiency;
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