Title: Turbine Vibration Analysis and Treatment of
ABSTRACT
I Cathay Pacific's 50MW Turbine Generator, Installation CC50-8.83/.3.92/1.37-type high-pressure, single-cylinder, impulsivity, double extraction condensing steam turbine for China Yangtze River Power Group (Wuhan Turbine Works) Production, Supporting Harbin Boiler Factory manufactured two sets HG-130/9.8-L.YM20 Circulating Fluidized Bed Boiler. Units using DCS control system and electro-hydraulic control, Xinhua DEH control system of joint control. The project was in October 2004 from Wuhan Turbine Works is responsible for the installation, in October 2005 in Xuzhou testing is responsible for the power to adjust unit set to start debugging, in December 2005 unit test run.
Since the installation and operation in July this year has ended and until there is 2 # 5 # bearings bearings and the phenomenon of excessive vibration, impact loads and the serious threat to the unit to enhance the safe operation of generating units. To this end, we have conducted two major overhaul, the causes may result in vibration analysis and testing them one by one, on this basis, we have come to explore the various phenomena listed in the article and solutions, And eventually found an important method to solve the problem: Re-processing back wheel rotor balancing test datum and doing a series of measures, the basic achieve our desired objectives. Now my company units that exist in the vibration problems and solutions are summarized as follows, to other similar units of the commissioning and operation to provide reference.
Keywords: Turbine Vibration Analysis of treatment measures
Paper Type: g. Case Studies
