热力发电Issue(12)：61-65,5.DOI:10.3969/j.issn.1002-3364.2014.12.061
W火焰锅炉低氮燃烧控制机理研究
Low NOx combustion control mechanism of down-fired boilers
摘要
Abstract
To solve high nitrogen oxide (NOx )emission problem occurred in Foster Wheeler down-fired boilers,the combustion characteristics and NOx formation properties in the furnace were analyzed.The low NOx combustion control mechanism applying the “inj ection-reflux and multipoint-multistage”mechanism was developed.On the basis of this mechanism,the low NOx combustion retrofitting was carried out on a 660 MW unit boiler applying the Foster Wheeler technique.The experimental results after retrofitting indi-cate that the NOx emissions can not be reduced significantly by simply adding OFA system in down-fired boilers.The secondary air should be shifted from the rear and front wall to the right place of arches to real-ize the"inj ection-reflux and multipoint-multistage"mechanism in the whole furnace.Thus the ideal NOx e-missions level (≤800 mg/m3 )can be reached.关键词
W火焰锅炉/低氮燃烧/引射回流/多点分级/OFA/NOx 排放Key words
W flame boiler/low NOx combustion/inj ection-reflux/multipoint-multistage/OFA/NOx emission分类
能源科技引用本文复制引用
严万军,曹亮,房凡,周虹光,魏铜生,徐党旗,聂剑平..W火焰锅炉低氮燃烧控制机理研究[J].热力发电,2014,(12):61-65,5.基金项目
国家科技部支撑计划项目(2011BAA04B01) （2011BAA04B01）
中国华能集团公司重点科技项目 （）
