南宁市在用机动车尾气排放特性研究分析与控制

发布时间：2018-01-25 03:48

  本文关键词： 机动车 污染物 超标 处理　出处：《广西大学》2015年硕士论文　论文类型：学位论文

【摘要】：近年来,随着经济的快速发展和城市化进程的加快,南宁市机动车保有量迅速增长,截止2014年底,南宁市机动车保有量达到165万辆,方便人们的同时,带来的大气环境污染问题也越来越严重,且各种机动车污染物对整个人类环境及人体本身造成了极大的伤害,如何找出主要污染物排放源,并采取合理且可行的减排措施,已经成为提高南宁市空气质量的重要任务之一。机动车排放因子复杂,排放量巨大、且排放高度较低,对于开展机动车排放量研究,着重研究对超标机动车的检测处理具有重要且实际的应用价值。本文针对南宁市机汽油车尾气污染物排放超标所引起的问题主要展开的研究工作有：1.分析在用机动车尾气排放污染物的危害、形成机理及常用的控制方法。通过分析对比国内外在用机动车排放污染物检测标准和测试方法,找出我国和发达国家之间的差距。2.通过调研、分析南宁市环保检测站现阶段对在用机动车环保检测所执行的检测标准、设备要求、检测方法和检测流程。3.结合南宁市所特有的机动车综合排放因子与机动车行驶现状,采用COPERT模型对南宁市各类机动车污染物排放量进行计算,并就起结果进行分析,其中计算得出南宁市机动车污染物排放量为CO为94689.89t,NOx为40942.21t,VOC为32873.7t,PM为1822.11t。4.分析南宁市机动车污染物的排放构成,并结合南宁市机动车的排放现状,得出对尾气排放超标车辆的治理是治理南宁市大气污染的重要措施,本文将多种污染物超标的不同原因及控制方法分别进行归纳总结,并就不同种类的超标车辆进行分析及控制使其达到环保检测要求,最终实现了降低在用尾气污染物的排放量,从而在一定程度上加快了南宁市提高空气质量的进程。
[Abstract]:In recent years, with the rapid development of economy and city urbanization, the rapid growth of the vehicle population in Nanning, by the end of 2014, Nanning city vehicle population reached 1 million 650 thousand, convenient for people at the same time, the problem of air pollution caused more and more serious, and a variety of vehicle pollutants caused great harm to mankind as a whole the environment and the human body itself, how to find out the source of emissions of major pollutants, and to take reasonable and feasible measures to reduce emissions, has become one of the important tasks to improve the air quality of Nanning city. Vehicle emission factor complex, huge emissions, emissions and lower height, to carry out research on vehicle emissions, mainly research has important application value and practical to exceed the standard motor vehicle detection processing. This research aimed at Nanning city machine gasoline vehicle exhaust pollutant emissions exceed the standard problems caused by the main expansion Work: 1. in the analysis of vehicle emission pollutants from harm, formation mechanism and control methods. Through comparative analysis of domestic and international emissions testing standards and testing methods of motor vehicle, find out between China and developed countries.2. through research, analysis of environmental detection station of Nanning city at this stage in the detection requirements for equipment standard for vehicle inspection performed by the status quo of vehicle emission factor and vehicle detection method and process of.3. in Nanning city with unique driving, COPERT model is used to all kinds of vehicle emissions in Nanning is calculated. And from the results, the calculated vehicle emissions in Nanning city CO 94689.89t, NOx 40942.21t, VOC 32873.7t, PM 1822.11t.4. analysis of emissions of pollutants from motor vehicles in Nanning and combined with Nanning. Emission status of the vehicle, the vehicle exhaust emissions exceed the standard of governance is an important measure to control air pollution in Nanning City, the different causes and control methods of various pollutants exceed the standard are summarized, and the different types of vehicles exceed the standard analysis and control to achieve environmental testing requirements, and ultimately reduce emissions the amount of exhaust pollutants, thereby speeding up the process of improving the air quality of Nanning city to a certain extent.

【学位授予单位】：广西大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X734.2;U491.92
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本文编号：1461896