Analysis and Treatment of Abnormal Vibration of Feedwater Pump of 1000MW Ultrasupercritical Unit
Under the background of deep peak-shaving,flexible operation,large flow heating,energy saving and con-sumption reducing,the safety and reliability of thermal power units are decreased,and the failure frequency is increased.In view of the sudden change of vibration fault of a feedwater pump during operation,the vibration test,cause analysis and fault diagnosis were carried out,it is pointed out that the main reason for the sudden change of feed water pump vi-bration twice is the shedding of fixed parts.Through disassembly inspection,it is found that the inlet temperature casing falls off and gets stuck in the first stage impeller.After treatment,the vibration problem of the feed water pump can be solved.
万方数据
维普
