引风机后汇流烟道的数值模拟  

Numerical Simulation of Conflux Flue behind Induced Draft Fan

作　　者：康振兴[1] 邵杰[1] 李国堂[1] 

机构地区：[1]国核电力规划设计研究院,北京市100094

出　　处：《电力建设》2012年第4期58-60,共3页Electric Power Construction

摘　　要：引风机出口烟道布置不合理,会引发流动阻力增加、脱硫效率降低等一系列问题。针对新疆某电厂炉后布置紧凑、引风机出口汇流烟道流动紊乱的情况,采用计算流体动力学(computational fluid dynamics,CFD)对引风机出口汇流烟道进行了数值模拟,并通过加设导流板的方式优化了流场,得到了较好的效果。Due to unreasonable arrangement of flue behind induced draft fan（IDF）,there are some problems in terms of a flow resistance increase and a desulfurization efficiency decrease.According to the phenomenon of compact arrangement of boiler tail section and flow breakdown of conflux flue behind IDF in a power plant of Sinkiang,the conflux flue behind IDF was numerically simulated by computational fluid dynamics（CFD）,and some splitters were used for flow field optimization with good effect.

关 键 词：引风机 汇流烟道 数值模拟 计算流体动力学(CFD) 流场优化 

分 类 号：TM621.7[电气工程—电力系统及自动化]