某660MW锅炉局部水冷壁管屏磨损原因分析  

Analysis on the wear of local water-wall panel of a 660MW Boiler

作　　者：张超 栾世健[1,2] 沈涛[1,2] 郑晓军[1,2] 马甜甜 何剑飞 ZHANG Chao;LUAN Shi-jian;SHEN Tao;ZHENG Xiao-jun;MA Tian-tian;HE JIAN-fei(Harbin Boiler Company Limited,Harbin 150046,China;State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers(Harbin Boiler Company Limited),Harbin 150046,China)

机构地区：[1]哈尔滨锅炉厂有限责任公司,黑龙江哈尔滨150046 [2]高效清洁燃煤电站锅炉国家重点实验室(哈尔滨锅炉厂有限责任公司),黑龙江哈尔滨150046

出　　处：《锅炉制造》2022年第6期6-8,12,共4页Boiler Manufacturing

摘　　要：针对贫煤锅炉在运行过程中出现的局部水冷壁管屏磨损问题,本文采用数值模拟方法分析并寻找到问题产生的原因:由于点火燃烧的着火和燃尽特性较差,煤粉燃尽距离延长,大量携带有较多固体颗粒的烟气直接冲刷吹水冷壁管屏。数值模拟方法为解决磨损问题指明了改造方向。Aiming at the wear problem of local water-wall panel in the operation of lean coal boiler, this paper uses numerical simulation method to analyze and find the causes of the problem: due to the poor ignition and burnout characteristics of ignition combustion, the burnout distance of pulverized coal is extended, and a large number of flue gas carrying more solid particles directly scour the water-wall panel.The numerical simulation method points out the transformation direction for solving the wear problem.

关 键 词：贫煤燃烧 数值模拟 水冷壁 磨损 

分 类 号：TK228[动力工程及工程热物理—动力机械及工程]