泵偏流量运行导致机械密封失效的故障分析Failure Analysis of Mechanical Seal on Pump Running under Allowed Capacity
刘彦春
LIU Yan chun (Shijiazhuang Industrial Pump Factory;
摘要(Abstract)：
针对电厂石灰石湿法烟气脱硫系统用泵的工况条件 ,对泵用机械密封失效的故障进行分析。认为密封失效的原因是泵运行偏离了设计工况点 ,泵在小流量运行时产生了较大的径向力 ,导致机械密封动、静摩擦环间发生严重撞击而破裂。最后提出了解决故障的措施
Failure of mechanical seal on pump is analysed which are installed in limestone gypsum FGD system.Lager radial force and collision between sealed parts can be produced when pump run under allowed capaeity. Some methods are put forward.
关键词(KeyWords)：
偏流量;机械密封;失效分析
run besides allowed capacity;mechanical seals;failure analysis
基金项目(Foundation):
作者(Authors):
刘彦春
LIU Yan chun (Shijiazhuang Industrial Pump Factory;