600 MW机组锅炉屏式再热器爆管原因分析及预防对策  

Analysis and Prevention Countermeasure of Boiler Platen Re-Heater's Tube Burst Cause in 600 MW Unit

作　　者：王荣 魏广鸿 刘吉 常屹 赵志宏 WANG Rong;WEI Guanghong;LIU Ji;CHANG Yi;ZHAO Zhihong(Inner Mongolia Jinglong Power Generation Co.,Ltd.,Wulanchabu,Inner Mongolia 012100,China)

机构地区：[1]内蒙古京隆发电有限责任公司,内蒙古乌兰察布012100

出　　处：《东北电力技术》2022年第2期50-53,62,共5页Northeast Electric Power Technology

摘　　要：四管泄漏是火电厂机组非停的主要原因之一。针对京隆发电公司锅炉屏式再热器长期过热超温爆管的问题,从爆管的直接原因和产生机理两方面进行分析,结合金相组织分析及力学性能试验结果进一步验证,提出一系列有针对性的预防爆管措施,可为同类型机组锅炉四管安全稳定运行提供一定借鉴与参考。Tube burst and leakage cause unit abnormal shutdown in thermal power plants.According to the problem of the boiler reheater over-temperature tube-burst in Jinglong power generation company,it analyzes the direct cause and the mechanism of tube bursting.The results of metallographic structure analysis and mechanical properties test are further verified.A series of measures to prevent tube-burst are put forward,which can provide reference for the boiler safe and stable operation of the same type unit.

关 键 词：锅炉 屏式再热器 超温爆管 金相分析 预防对策 

分 类 号：TM621[电气工程—电力系统及自动化]