东北电力技术2026，Vol.47Issue(4)：44-51,8.
循环流化床锅炉深调负荷二次风对NOx生成量的影响研究
Research on Influnce of NOx Generation by Secondary Air in Deep Adjustment Load of CFB Boilers
孟月 1高继录 1曾乐 1蒲建业 1刘洪宪2
作者信息
- 1. 中电投东北能源科技有限公司,辽宁 沈阳 110179
- 2. 东北电力大学能源与动力工程学院,吉林 吉林 132011
- 折叠
摘要
Abstract
In response to the problem of NOx exceeding the standard in circulating fluidized bed(CFB)boilers under deep adjustment load,the internal flow field of CFB boilers is numerically simulated using fluent software.It studies the flow characteristics of circulat-ing fluidized bed boilers,and analysizes the factors leading to NOx exceeding the standard under low load conditions.The results indi-cate that the combustion of fuel is mainly concentrated in the dense phase region,where particle flow exhibits a typical"ring core"structure.The large amount of NO generation is concentrated in this position,and the CO concentration in the dense phase region will inhibit the generation of NO.Through multiple numerical analyses and calculations,the optimal air distribution ratio is determined to be a primary air rate of 4,with the lowest NO generation at a secondary air rate of 6,which is most conducive to achieving ultra-low NOx emissions.关键词
循环流化床锅炉/低氮燃烧/深调负荷/数值分析Key words
circulating fluidized bed boiler/low nitrogen combustion/deep adjustment load/numerical analysis分类
能源科技引用本文复制引用
孟月,高继录,曾乐,蒲建业,刘洪宪..循环流化床锅炉深调负荷二次风对NOx生成量的影响研究[J].东北电力技术,2026,47(4):44-51,8.
