汽动给水泵周期性振动故障诊断分析  

Cause Analysis of Cyclical Vibration of Steam Feed Pump

作　　者：张鹏[1] 刘德荣[1] ZHANG Peng, LIU De-rong

机构地区：[1]华北电力科学研究院(西安)有限公司

出　　处：《电站系统工程》2018年第2期56-58,共3页Power System Engineering

摘　　要：针对转子旋转性质量不平衡的形成原因、振动机理和振动特点进行了详细的分析和介绍,以某600 MW超临界机组汽动给水泵在运行过程中出现的周期性异常振动过程进行分析和研究,指出转子存在动静摩擦是导致该汽动给水泵异常振动的主要原因,通过采用连续低速磨合的方式,成功解决了汽动给水泵异常振动问题。The causes, vibration mechanism and vibration：haracteristics ofrotor rotational mass imbalance are analyzed and introduced. The periodic abnormal vibration process ofa 600MW supercritical steam turbine is carried out during the operation. It is pointed out that the dynamic and static friction of the rotor is the main reason for the abnormal vibration of the steam feed water pump, and the abnormal vibration of the steam feed water pump is successfully solved by the continuous running mode.

关 键 词：汽动给水泵 周期性振动 轻微摩擦 质量不平衡 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]