某“W”火焰超临界锅炉结焦原因分析及对策  

Cause Analysis and Countermeasures of Slagging in a W-flame Supercritical Boiler

作　　者：奉林 熊显巍[2] 徐金苗 FENG Lin;XIONG Xian-wei;XU Jin-miao(Vinh Tan 1 Power Co.,Ltd.,vinh;Shanghai Power Equipment research institute Shanghai 200240,China;Guangdong Electric power design institute Co.,Ltd.of CEEC,Guangzhou 510663,China)

机构地区：[1]越南永新一期电力有限公司,越南永新 [2]上海发电设备成套设计研究院,上海200240 [3]中国能源建设集团广东省电力设计研究院,广东广州510663

出　　处：《电力勘测设计》2021年第1期14-19,共6页Electric Power Survey & Design

摘　　要：某超临界“W”火焰锅炉设计燃用越南无烟煤,投产初期受热面结焦严重,造成多次停炉事件,本文对结焦原因进行分析后,通过对卫燃带原设计方案、去掉翼墙卫燃带、去掉全部卫燃带三种工况采用数学模拟方法对炉内燃烧过程进行了计算分析,发现除去翼墙卫燃带炉内整体温度分布合理,不易引起严重结渣的风险,后期并将卫燃带按照数值模拟的结果进行了局部处理,取得了非常好的改造效果。A supercritical W-flame boiler was designed to use Vietnamese anthracite.The initial heating of the heating surface caused serious coking,which led to multiple shutdowns.After analyzing the cause of coking,this paper uses mathematical simulation methods to analyze the combustion process in the furnace through the three design conditions of the original design of the belt,the removal of the wing wall,and the removal of all the belts.The overall temperature distribution in the wall-fired belt furnace is reasonable,and it is not easy to cause the risk of serious slagging.In the later stage,the fire-proof belt was partially treated according to the results of numerical simulation,and a very good transformation effect was obtained.

关 键 词：超临界“W”火焰锅炉 结焦 无烟煤 卫燃带 

分 类 号：TM621[电气工程—电力系统及自动化]