一起发电机漏氢事件原因分析与处理

Cause Analysis and Treatment of Generator Hydrogen Leakage Incident

针对某发电厂600 MW超临界汽轮发电机严重漏氢问题,分析了机组运行中的异常情况和检修中发现的问题,查明了漏氢的原因,进行了系统调整、技术改造以防止氢气泄漏。采取措施后,发电机本体气密性试验结果表明漏氢量符合要求。

In allusion to a serious hydrogen leakage problem of a 600 MW supercritical steam turbine generator in a power plant,the abnormal situation in unit operation and the problems found in maintenance are analyzed,the causes of hydrogen leakage are found out,system adjustment and technical modification are adopted to prevent hydrogen leakage.After taking the measures,the results of the gas tightness test of the generator body show that the amount of hydrogen leakage meets the requirement.