600MW高水分褐煤锅炉NO_x排放特性  

NO_x Emission Characteristic of 600MW Boiler Combusting with High Water Content Lignite

作　　者：曹红加[1] 张清峰[1] 白月林[2] 李俊忠[2] 李玉春[2] 

机构地区：[1]华北电力科学研究院有限责任公司 [2]内蒙古上都发电有限责任公司

出　　处：《电站系统工程》2009年第2期11-12,15,共3页Power System Engineering

摘　　要：国内的褐煤锅炉一般采用风扇磨煤机,而内蒙古上都发电公司燃用高水分褐煤锅炉却采用中速磨煤机系统。对该锅炉进行了NOx排放特性的试验,主要考虑一次风率、过剩空气系数和配风方式等方面的影响。试验结果表明,NOx排放随一次风率的增加显著增加,随排烟氧量的增加显著增加,采用倒宝塔配风能降低NOx的排放。Chinese lignite boiler generally uses fan mill system, but Inner Mongolie Shangdu Power Co., Ltd. uses race mill system which combusts with high water content lignite. Experimental research of NOx emission was done on this boiler. The influence of primary air rate, excess air and air distribution was investigated. It is showed that NOx emission increases significantly when primary rate increases and excess air increases. Nabla air distribution can reduce NOx emission.

关 键 词：高水分 褐煤 中速磨煤机 NOX排放 

分 类 号：X701.7[环境科学与工程—环境工程]