Abnormal vibration analysis and treatment for No. 3 bearing bush of ultra - supercritical 1000MW turbine

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Li, Wanjun^1 ; Li, Xiaoxia^2 ; Zhang, Deke^1 ; Niu, Qingliang^1 ; Huang, Tianqi^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: Abnormal vibration;    Effective measures;    excessive vibration;    Fault treatment;    Maintenance records;    NO.3 bearing bush;    Pressure cylinders;    Steam turbine-generator set;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/4/042059/pdf
DOI  :  10.1088/1755-1315/300/4/042059

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

When a power plant ultra-supercritical 1000MW steam turbine generator set was started in a cold state, the vibration value of NO.3 bearing bush exceeded the alarm value. Based on the mechanism of vibration, the fault diagnosis and troubleshooting of excessive vibration of the NO.3 bearing bush were carried out by consulting the historical operation trend and checking the maintenance records, and the cause of the fault was accurately analyzed. By adopting effective measures such as setting up the heating system of the middle pressure cylinder and setting up the starting steam parameters reasonably, the problem of excessive vibration value of the NO.3 bearing bush was completely solved and the hidden danger of equipment operation safety was eliminated.