摘要
辽宁华电铁岭发电有限公司的给水泵再循环阀出现了阀门密封不严和泄漏问题,分析其主要原因是阀座密封面发生了气蚀、侵蚀和冲刷。采取了3项措施,对阀门结构进行了改造,改造后的给水泵再循环阀投入运行后,其密封和调节性能良好,运行过程中从未出现泄漏问题,取得了良好的经济效益。
There were problems of sealing untightness and leakage occurred in the feed pump recirculating valve of Liaoning Huadian Tieling Power Generation Corporation Limited. The reasons found by analysis were cavitation, encroachment and attack occurred at the sealing face of the valve seat. The valve structure was reformed by adopting three measures. The sealing and adjustment performance of the reformed recirculating valve are excellent, and leakage fault des not occur again in operation. So a good economical benefit was obtained.
出处
《华电技术》
CAS
2008年第11期51-52,共2页
HUADIAN TECHNOLOGY
关键词
给水泵再循环阀
侵蚀
气蚀
冲刷
分析
结构改造
解决方法
recirculating valve of feed pinup
encroachment
cavitation
attack
analysis
structure reformation
solving method
