600MW超临界W火焰锅炉防超温燃烧调整试验研究  

Combustion Adjustment Tests for Preventing Overheating Problems in a 600 MW Supercritical W-flame Boiler

作　　者：周文台[1] 程智海[1] 金鑫[1] 何翔[1] 

机构地区：[1]上海发电设备成套设计研究院,上海200240

出　　处：《动力工程学报》2013年第10期753-758,共6页Journal of Chinese Society of Power Engineering

摘　　要：分析了云南华电镇雄发电有限公司2号600MW超临界W火焰锅炉水冷壁出现频繁超温的原因,并据此进行了二次风配风、煤粉粒度和一次风压力等方面的燃烧调整试验.结果表明:水冷壁超温是由于配风模式的不合理和炉内燃烧不稳定共同作用而引起的;经燃烧调整后,水冷壁的超温问题得到有效解决,炉内热负荷的分布更加均匀,炉膛负压波动减小,火检信号稳定,火焰电视清晰可见,燃烧更加稳定.To solve the water wall overheating problems occurring in the No. 2 600 MW supercritical W- flame boiler in Yunnan Huadian Zhenxiong Power Generation Co. , Ltd. , an analysis was carried out, based on which combustion adjustment tests were performed on the aspects of secondary air distribution, coal particle size and primary air pressure, etc. Results show that the problems are found to be caused by both the unreasonable air distribution mode and the instable in-furnace combustion, which are finally solved by combustion adjustment, resulting in uniform in-furnace air distribution, reduced fluctuation of furnace negative pressure, stabilized signals of flame detection, cleared flame TV images and improved furnace combustion.

关 键 词：W火焰锅炉 燃烧调整 水冷壁 超温 煤粉粒度 配风 热负荷 

分 类 号：TK227.1[动力工程及工程热物理—动力机械及工程]