A Study On The Performance Of Indoor Air Pollution Control By New Wind Systems

Indoor air quality is closely related to people's physical and mental health.The introduction of outdoor air pollutants and the release of indoor pollution sources will lead to serious indoor pollution,which will endanger people's health.The new wind system is an effective measure to control indoor air pollution,the new wind is sent into the room after multi-layer filtration purification treatment,dilution reduces the concentration of indoor pollutants,and provides a healthy and comfortable indoor air environment.In this paper,the winter college dormitory as the research object,through the combination of measurement and simulation,the control of indoor air pollutants in the new wind system in different forms of filtration purification is studied,and the purification effect is analyzed and evaluated.First of all,taking indoor air in college buildings as the research object,considering the three conditions of different functional areas,different simultaneous states and heating before and after,the concentration of microbial aerosols in the air was tested,and analyze the characteristics of air microbial particle size distribution,make the Evaluation of indoor air quality.Analysis of the test results found that during the test period,the dormitory air concentration of bacteria and fungi in the dormitory is the lowest,the concentration of bacteria in the toilet air is relatively high,the concentration of fungi in the campus air is relatively high;At 12:00 p.m.,the concentration of bacteria and fungi in the air was the lowest,and the average daily concentration of indoor particulate matter did not meet the higher requirements of the Healthy Building Evaluation Standard,and long-term exposure to the environment still posed a health risk.Secondly,a new wind system filtration purification performance test platform is set up,and the new wind system has tested the purification effect of indoor particulate concentration when different filtration purification combinations are used.Analysis of the test results showed that,under different filtration combinations,the concentration of indoor particulate matter showed about the same law of change,after the new wind system was turned on,the concentration of indoor particulate matter decreased rapidly,and gradually slowed down with the increase of the opening time,gradually stabilizing after a period of time;Comparing the control effects of different filtration purification combinations,when the new wind system use the combination of coarse-medium-high three-stage filtration,lowest stability value of indoor air particles,the highest degree of effectiveness,the less time it takes to meet the standard,the best purification effect,In the indoor air pollution purification requirements are very strict occasions,priority is given to the use of coarse-to-medium-to-high three-level filtration combination of new wind system.Finally,the quality balance equation of indoor microbial pollution control of the new wind system was established,using the Simulink model,and the purification effect of indoor microbial concentration was simulated when different filtration purification combinations were used in college dormitories as an example.The results of the analysis and simulation show that when the new wind system is used to purify the new wind system with different filtration purification combination,the concentration of indoor air bacteria shows about the same law of change,after the new air system is turned on,the concentration of indoor bacteria decreases rapidly,and gradually slows down with the increase of the opening time,and gradually stabilizes after a period of time;Comparing the control effects of different filtration purification combinations,when the new wind system use the combination of coarse-medium-high three-stage filtration,the stable concentration value of indoor bacteria is relatively low,the highest degree of effectiveness,the less time it takes to meet the standard,the best purification effect,In the indoor air pollution purification requirements are very strict occasions,priority is given to the use of coarse-to-medium-to-high three-level filtration combination of new wind system.