浅谈车载式氮氧传感器工作原理

Working principle of vehicle mounted nitrogen oxygen sensor

随着国六标准的颁布及新时代环境保护的更高要求,减少汽车尾气有害气体的排放,提升尾气处理技术就变得更为迫切和重要。特别是在柴油汽车中,在高温高压状态下,空气中N2很容易发生反应变成N2O、NO、NO2、N2O3、N2O4和N2O5等氮氧化物(NOX),而车载氮氧传感器作为测量尾气NOx含量的关键检测设备,将在尾气治理中广泛应用,就目前而言,我国氮氧传感器还主要靠进口德国大陆的产品,国内对氮氧传感器的研制和生产还刚起步,拥有独立自主知识产权的企业不多,在氮氧传感器生产、检测、售后中表现突出的有湖北丹瑞新材料科技股份有限公司,此文通过对氮氧传感器原理及生产过程进行简要介绍,希望能够为氮氧传感器制备国产化提速提供些许帮助。

With the promulgation of the sixth national standard and the higher requirements of environmental protection in the new era,it is more urgent and important to reduce the emission of harmful gas from automobile exhaust and improve the exhaust treatment technology.Especially in diesel vehicles,under the condition of high temperature and high pressure,N2 in the air is easy to react to form nitrogen oxides(NOx)such as N2O,no,NO2,N2O3,N2O4 and N2O5.As the key detection equipment for measuring NOx content in exhaust gas,on-board nitrogen and oxygen sensors will be widely used in exhaust gas treatment.At present,China’s nitrogen and oxygen sensors mainly rely on imported products from German mainland The development and production of nitrogen and oxygen sensor is still in its infancy,and there are few enterprises with independent intellectual property rights.Hubei Danrui New Material Technology Co.,Ltd.has outstanding performance in the production,detection and aftersale of nitrogen and oxygen sensor.This paper briefly introduces the principle and production process of nitrogen and oxygen sensor,hoping to provide some references for speeding up the localization of nitrogen and oxygen sensor preparation help.