LI Su-qing, YANG Shi-bin, LIU Wei-dong(Guodian Taiyuan Thermal Power Plant No.1. CAUSE ANALYSIS AND CONTROL MEASURES OF UNSTABLE VIBRATION IN SHAFTING SYSTEM OF 300 MW TURBO-GENERATOR[J]. Thermal power generation, 2007, (1): 47-50.
LI Su-qing, YANG Shi-bin, LIU Wei-dong(Guodian Taiyuan Thermal Power Plant No.1. CAUSE ANALYSIS AND CONTROL MEASURES OF UNSTABLE VIBRATION IN SHAFTING SYSTEM OF 300 MW TURBO-GENERATOR[J]. Thermal power generation, 2007, (1): 47-50. DOI: 10.19666/j.rlfd.2007.01.014.
A large margin fluctuation phenomenon of vibration has frequently occurred in operation of unit no.3 at Guodian Taiyuan Thermal Power Plant.Through all-round analysis of vibration test data
as well as vibration record in the speed up process
etc.
it is determined that the vibration trouble of said unit to be rubbing vibration which was caused by bending of the IP rotor
and dipper-shaped deformation of the coupling at HP side was overlarge.as well as the deviation of shaft elevation was over-big.Through adjustment of operation parameters and elimination of the dipper-shaped deformation for disc-pair of the coupling