Analysis and Treatment of Shutdown Due to Bearing Vibration Towards Ultra-supercritical 660MW Turbine

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Li, Wanjun^1 ; Li, Xiaoxia^2 ; Niu, Qingliang^1 ; Huang, Tianqi^1 ; Zhang, Deke^1 ; Dong, Yang^1

Huadian Electric Power Research Institute Co. LTD., Jinan

250014, China^1

CRRC Wind Power (Shandong) CO. LTD, Jinan

250022, China^2

关键词: Bearing vibrations;    Effective measures;    Fault treatment;    Maintenance records;    Normal operations;    Supercritical;    Turbine shutdowns;    Vibration faults;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/4/042008/pdf
DOI  :  10.1088/1755-1315/300/4/042008

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

During the normal operation of an ultra-supercritical 660MW steam turbine in a power plant, the temperature of low-pressure shaft seal steam inlet gradually increases, and the vibration of steam turbine bearing suddenly increases, leading to the steam turbine shutdown. The diagnosis and troubleshooting of major vibration faults of steam turbine bearing are carried out, and the causes of faults are accurately analysed through collecting field data, checking maintenance records and disassembling inspection of relevant equipment. Taking corresponding effective measures to eliminate the potential equipment safety hazard.