四角切圆燃烧煤粉炉汽温偏差的分析及调整  

Analyzing and Adjusting of Steam Temperature Deviation for Tangential Firing Boiler

作　　者：刘综绪[1] 王春玉[1] 李有信[1] 赵鑫平 

机构地区：[1]国网河南省电力公司电力科学研究院

出　　处：《电站系统工程》2014年第5期53-55,共3页Power System Engineering

摘　　要：针对某660 MW电站四角切圆煤粉炉汽温偏差严重的问题,从燃烧方面进行试验分析和调整,削弱了炉膛出口烟气的残余扭转,进而改善了汽温偏差。试验表明,燃尽风反切角度、二次风配风方式、燃烧器组合方式以及偏置二次风量对汽温偏差有显著影响,其中改变燃尽风反切角度可作为主要的调整手段。Against the serious steam temperature deviation of the tangential firing pulverized coal boiler of a 660MW power plant, it carries on combustion analysis and adjustment, weakens the residual rotation of flue gas of furnace exit, and then improves steam temperature deviation. The experiment shows that OFA tangential angle, the distribution of secondary air, burner combination and CFS flow have significant impact on the steam temperature deviation, and changing OFA tangential angle can be the primary mean of adjustment.

关 键 词：四角切圆锅炉 残余扭转 汽温偏差 调整 

分 类 号：TK227.1[动力工程及工程热物理—动力机械及工程]