宁夏电力Issue(4)：60-63,68,5.DOI:10.3969/j.issn.1672-3643.2016.04.012
汽轮发电机组轴承低频振动故障分析
Fault analysis on bearing low frequency vibration of turbo-generator unit
刘明华 1孙小强 1柳磊 2王新良2
作者信息
- 1. 国电宝鸡发电有限责任公司，陕西 宝鸡 721000
- 2. 国电科学技术研究院，宁夏 银川 750011
- 折叠
摘要
Abstract
Aiming at the problem of the high vibration amplitude and accompanied by low frequency vibration in X direction on No.1 bearing of a 300 MW turbine generator unit, by the spectrum analysis of vibration data in the process of the unit start-up and operation, combining with the fault mechanism and vibration phenomenon of low frequency vibration, finds out the fault cause, puts forward the improving measure of increasing the stability of No.1 bearing. The application result shows that after the improving measure actualized the vibration amplitudes of No.1 bearing are less than 70 μm and low frequency vibration components disappear in the process of the unit start up and load operation;the vibration data reach excellent level of national standard.关键词
汽轮发电机/低频振动/汽流扰动/刚度Key words
turbo-generator/low-frequency vibration/air flow disturbance/rigidity分类
能源科技引用本文复制引用
刘明华,孙小强,柳磊,王新良..汽轮发电机组轴承低频振动故障分析[J].宁夏电力,2016,(4):60-63,68,5.
