Reasons and Preventive Measures for Vibration Tripping of Feed Water Pump Turbine in Thermal Power Units
The No.1 bearing of the feed water pump turbine of unit 4 suddenly vibrated up to the protection value,causing the unit to trip.Through investigation and analysis of the accident,it is found that the main reason is that the rotor coupling is not centered,resulting in the fracture damage of the laminated coupling diaphragm.In response to the problem of the accident,the corresponding treatment measures were quickly taken,and according to the causes of the failure,some relevant prevention and improvement measures were proposed to ensure the safe operation of generator sets.
万方数据
维普
