锅炉悬吊管壁温高情况分析  

Analysis on high wall temperature of boiler suspension pipeaa

作　　者：戴振亮 DAI Zhenliang(Wangting Power Station,Suzhou 215155,China)

机构地区：[1]望亭发电厂,江苏苏州215155

出　　处：《中国高新科技》2021年第6期13-14,共2页

摘　　要：某台国产660MW超超临界机组在外界负荷需求较小时,运行在低负荷或最低出力状态下,锅炉内部的工质流量低,水动力特性差,经常会出现后墙悬吊管壁温超限,使锅炉受热面存在安全隐患。文章从实际运行情况出发,研究悬吊管超温因素和调整处理思路。A 660MW ultra supercritical unit made in China has a small external load demand and operates under the condition of low load or minimum output.The internal working medium flow of the boiler is low and the hydrodynamic characteristics are poor.The wall temperature of the suspended tube of the back wall often exceeds the limit,which makes the heating surface of the boiler have potential safety hazards.Based on the actual operation situation,this paper studies the factors of suspension pipe overheating and the adjustment and treatment ideas.

关 键 词：壁温超限 燃烧恶化 温度偏差 

分 类 号：TM621[电气工程—电力系统及自动化]