swing of nuclear power plant motor

 

 

SONG Jun, CHEN Guang

 

(China Guangdong Nuclear Power Engineer Co.Ltd., Shenzhen 518124, China)

 

 

Abstract: Aiming at the problem that the temperature of motor spindle bearing rise abnormal, achieve the warning value, which make it impossible for load test,during the Fang Cheng Gang Nuclear Power Station I Phase circulating water pump motor in no load operation process with the gear box, inspect lubricating oil quality of bearing chamber, radial bearing bush gap, work face of radial bearing, motor shaft swing, probe signal measurement channel and so on. The motor shaft swing due to exceed the standard were analyzed and summarized. the motor shaft axis and the thrust head mirror plate friction surface is not vertical, which collse motor shaft swing exceeded. the head and spindle motor thrust with the loose problem was solved by scraping the lock ring. The results indicate that scraping motor thrust head lock on the site, motor lock ring can solve the problem of uneven thickness, the drive shaft swing standard and so on, so that the motor shaft swing and vibration, temperature etc. various operation parameters in the acceptance standard.

 

Key words: nuclear power; circulating water pump motor; swing;thrust head; lock ring