摘要
某火力发电机组投运后,主蒸汽管道疏水管多次发生爆漏,影响了设备和人身的安全,降低了电厂的经济性。通过管道应力分析发现,发生爆漏的原因是二次应力严重超标,为此将管系中部分固定支座改造成滑动支座,使二次应力下降到许用应力以内,改造后此管道未再发生爆漏。
Due to the leakage of the main steam drainage pipes,the efficiency as well as the personal safety and the normal operation of the equipment in one power plant has been seriously affected.The excessively high secondary stress is considered to the main reason for the issue,so instead of fixed bearings,sliding bearings are adopted to make sure that the secondary stress is in the allowable range.No leakage accidents happen again after the technical renovation.
出处
《江苏电机工程》
2010年第6期81-82,共2页
Jiangsu Electrical Engineering
关键词
疏水管道
爆漏
应力分析
drainage pipes
leakage
stress analysis
