过量空气系数对600MW对冲燃烧锅炉燃烧过程影响的数值模拟  

Numerical Simulation for the Influence of Excess Air Coefficient on the Combustion Process in a 600 MW Face-fired Boiler

作　　者：吕伟为[1,2] 赵振宁[2] 武振新[1] 安连锁[1] 王博[1] 

机构地区：[1]华北电力大学,北京102206 [2]华北电力科学研究院有限责任公司,北京100045

出　　处：《华北电力技术》2013年第11期1-5,共5页North China Electric Power

摘　　要：利用FLUENT软件研究了过量空气系数对某电厂600 MW负荷的燃烧及排放过程的影响。数值模拟结果表明,过量空气系数增大,主燃区温度升高,炉膛出口烟温有所降低,煤粉燃尽率提高,NOx排放上升。Based on the software FLUENT,this paper studied the influence of the excess air coefficient on the combustion and emission process of a 600 MW coal-fired power plant. The numerical simulation results show that,with the increase of the excess air coefficient, temperature of the main combustion area increases, the exhaust temperature of the flue gas reduces,the coal burn-off ratio increases,and the NOx emission increases.

关 键 词：过量空气系数 数值模拟 对冲燃烧 

分 类 号：TM621.2[电气工程—电力系统及自动化]