Research On Purifying Effect Of Metro Light Plasma Air Purification Device

With the rapid development of the modern economy,the scale of the city has been expanding,urban traffic has become more and more tense,in order to alleviate the urban ground traffic pressure,the subway is becoming a major modern city transportation.In order to effectively purify the air pollutants in the compartments and prevent the propagation of harmful microbes in the compartments,it is necessary to install the air purification devices in the ducts of the subway air-conditioning systems to improve the quality of the vehicles inside the compartments air quality.At present,the air purifier of metro compartment lacks specific experimental research on the purification efficiency of various pollutants.This paper has a practical significance to the air purification research of metro compartment by setting up a bench to test the purification efficiency of air purification device.This paper firstly analyzes the types and sources of the main pollutants in the subway cars,then analyzes the ways to improve the air quality of the subway cars,and then compares the principle and characteristics of the indoor air purification technology to determine the air purification method applied to the subway cars.In this paper,air purification equipment with optical plasma air purification technology is selected as the research object,and the installation position of the air purification device is analyzed.By setting up a test bed,the purification device is tested for particulate matter,TVOCs,formaldehyde,natural bacteria,surface bacteria and Escherichia coli of the purification effect.The experimental results show that the air purification device installed in the mixed air duct than installed in the return air duct purification rate is high,and the purification rate difference is mainly affected by fresh air quality;the optical plasma air purification device TVOCs,formaldehyde,PM2.5,PM10 and other particulate matter purification effect of the general,PM2.5,PM10 purification by the impact of wind speed,the greater the wind speed,the better the purification effect.In this paper,the control of pollutants in the subway compartment and the purification of optical plasma air purification device in-depth experimental study,to protect the subway air quality,improve people ride comfort,effective prevention and control of important biological disasters have important theoretical value And the social significance,at the same time for the optical plasma air purification device for metro compartment air sterilization purification experimental data support.