摘要
针对某1000 MW超超临界锅炉运行中20G省煤器集箱排气管发生泄漏原因进行理化检验和分析,并提出建议。结果表明,省煤器集箱排气管长时间在高于材质许用温度环境下运行,造成排气管组织球化、石墨化,性能劣化,最终强度不足发生爆破。
A physical and chemical inspection and analysis of the cause of leakage in the exhaust pipe of a 20G economizer header in the operation of a 1000 MW ultra supercritical boiler were carried out,and suggestions were made.The results showed that the exhaust pipe of the economizer header was operated for a long time in an environment higher than the allowable temperature of the material,which caused the exhaust pipe to be spheroidized,graphitized,performance deteriorated,and eventually blasted due to insufficient strength.
作者
魏然
邵旭明
常伟
于佳宇
WEI Ran;SHAO Xuming;CHANG Wei;YU Jiayu
出处
《青海电力》
2021年第1期48-50,共3页
Qinghai Electric Power
关键词
超超临界
省煤器集箱排气管
20G
泄漏
过热
ultra supercritical
economizer header exhaust pipe
leakage
overheating