“W”型火焰锅炉低氮燃烧技术试验研究

发布时间：2018-04-30 14:31

本文选题：W型火焰锅炉 + NOx(氮氧化物)　；参考：《山东大学》2015年硕士论文

【摘要】：NOx是一种对人类生活具有强烈危害的物质,其主要生成途径是煤炭、石油等化石燃料的燃烧。在我国,燃煤火力发电厂、汽车等是产生NOx的主要场所或设备。随着火电机组大型化、“W”型火焰锅炉等新燃烧方式的大量应用,W型火焰锅炉由于炉膛温度高,NOx排放指标相对偏高,低氮排放压力更大。我国从2008年起成为世界上火电装机容量最多的国家,火电厂NOx排放总量越来越大。在对电站锅炉NOx生成机理及当前主要低氮燃烧技术进行分析的基础上,针对国内巴威公司和东方锅炉厂两种主要流派的“W”型火焰锅炉开展了以降低氮氧化物排放为主要目的的燃烧调整试验研究。通过对比试验,证明了低氮燃烧调整可在较大程度上降低氮氧化物的排放。针对两种改造方案进行了低氮燃烧器改造和低氮燃烧调整测试。试验表明,不同的改造方案对于节能、环保的影响效果不同,目前被广泛应用的燃烧器改造方案在具体实施过程中还进一步优化的空间。
[Abstract]:NOx is a kind of material which is harmful to human life. The main way of its formation is the combustion of fossil fuels such as coal and petroleum. In China, coal-fired power plants, cars and so on are the main places or equipment to produce NOx. With the large scale of thermal power units, a large number of new combustion methods such as "W" type flame boiler have been widely used. Due to the high furnace temperature and relatively high NOx emission index, the low nitrogen emission pressure of the W-type flame boiler is higher. Since 2008, China has become the world's largest thermal power installed capacity, the total amount of NOx emissions from thermal power plants is increasing. Based on the analysis of the formation mechanism of NOx and the main low nitrogen combustion technologies in power plant boilers, The combustion adjustment experiment of "W" type flame boiler with the aim of reducing nitrogen oxide emission was carried out for two main types of "W" flame boiler of Bawei Company and Dongfang Boiler Plant in China. It is proved that low nitrogen combustion adjustment can reduce the emission of nitrogen oxides to a large extent. The low-nitrogen burner and low-nitrogen combustion adjustment test were carried out for two revamping schemes. The experimental results show that the effects of different retrofit schemes on energy saving and environmental protection are different, and the space for further optimization of the widely used burners in the process of implementation is also discussed.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM621.2

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