用于汽车尾气光氧化的烟雾箱研究及其表征实验

发布时间：2018-06-27 09:33

本文选题：烟雾箱 + 光化学　；参考：《环境科学与技术》2016年12期

【摘要】：大气中光氧化反应是造成大气中复合污染,加剧中国大气环境污染的重要因素。为了研究汽车尾气在大气中的光氧化反应,设计制作了一套用于汽车尾气光氧化反应的较大容积的室内烟雾箱实验系统,该系统主要包括反应系统、进样系统和检测分析系统。反应系统采取了移动式对箱设置,尾气进样系统考虑了汽车尾气的排放特点,检测系统采取了负压采气装置。通过对该烟雾箱的光强分布、光解实验、NO_2及O_3衰减等系列的表征实验表明,该烟雾箱系统的一些性能较国内已有的烟雾箱有一定程度的提高,而且更适合于模拟汽车尾气的光氧化反应,同时,该系统具有采样方便、两箱对比和可模拟多种环境等特点。
[Abstract]:The photooxidation reaction in the atmosphere is an important factor that causes the compound pollution in the atmosphere and intensifies the pollution of the atmospheric environment in China. In order to study the photooxidation reaction of automobile tail gas in the atmosphere, a large volume indoor smoke box experiment system for photooxidation of automobile tail gas was designed and manufactured. The system mainly includes reaction system, sample injection system and detection and analysis system. The reaction system is equipped with a mobile counter box, the exhaust gas injection system takes into account the characteristics of automobile exhaust emissions, and the detection system adopts a negative pressure gas recovery device. The experiments of light intensity distribution, photolysis experiment and O _ 3 attenuation show that some properties of the smoke box system are improved to some extent compared with the existing smog box in China. It is more suitable for simulating photooxidation reaction of automobile exhaust gas, and the system has the advantages of convenient sampling, comparison between two boxes and simulation of various environments.
【作者单位】：南通大学机械工程学院;南通大学理学院;南通大学地理科学学院;
【基金】：国家自然科学基金项目资助(51376095) 江苏省环保科研课题(2014049)
【分类号】：X734.2

【相似文献】