In this paper,an air mixing chamber for calibration of grid-based ambient air quality monitor is de-signed,and the mixing process of air distribution is introduced.The air mixing chamber has the advantages of sim-ple structure,good controllability and simple simulation method.The dilution gas and the diluted gas path are e-quipped with corresponding flow controller and control components,which can better control the flow accuracy of the delivery mechanism,improve the concentration accuracy of the pre-prepared target mixture,gas distribution rate and air exchange efficiency.At the same time,the stability is good,the temperature and humidity can be con-trolled,and the exhaust gas collection mechanism can recover the exhaust gas,which is convenient for the rapid cleaning of the simulation chamber and the continuous preparation of other concentrations and different temperature and humidity mixed gases.
关键词
模拟舱/气体混合/废气收集/模拟工况
Key words
simulation cabin/gas mixture/waste gas collection/simulated working conditions
维普
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