热力发电2016，Vol.45Issue(7)：7-12,6.DOI:10.3969/j.issn.1002-3364.2016.07.007
六角切圆燃煤锅炉低氮燃烧器改造经济性分析
Economy analysis for six-corner tangentially fired boiler suffered low NOx burner transformation
摘要
Abstract
Transformation was conducted for low NOx burner of hexagonal tangential coal-fired boiler in a 300 MW unit.Six over fire air nozzle in three layers were added at the place with height of 7 m above the main burner.The Fluent software was applied to carry out three dimensional simulation for the combustion inside the furnace.The results show that,before and after the transformation,the boiler efficiency was 91.30% and 90.70%,the denitra-tion cost were 0.022 0 yuan/(kW•h)and 0.016 3 yuan/(kW•h),the overall cost of the denitration and boiler efficiency was 0.218 25 yuan/(kW•h)and 0.212 45 yuan/(kW•h).After low NOx burner transformation,the classification of the furnace deepened,the NOx emission reduced,the overall cost decreased,and the energy saving efficiency was obvious.关键词
锅炉/六角切圆燃烧/低氮燃烧器/锅炉效率/N Ox 排放/数值模拟Key words
boiler/six-corner tangential/low nitrogen burner/boiler efficiency/NOx emission/numerical sim-ulation分类
能源科技引用本文复制引用
刘洪宪,史梦燚..六角切圆燃煤锅炉低氮燃烧器改造经济性分析[J].热力发电,2016,45(7):7-12,6.基金项目
吉林省教育厅“十三五”科学技术研究规划项目 （）
