中国电力 ›› 2013, Vol. 46 ›› Issue (12): 62-66.DOI: 10.11930/j.issn.1004-9649.2013.12.62.4

• 发电 • 上一篇    下一篇

汽轮发电机组摩擦振动的分析与辨识

叶泽平, 代炜   

  1. 四川省电力工业调整试验所,四川 成都 610072
  • 收稿日期:2013-07-26 出版日期:2013-12-23 发布日期:2015-12-10
  • 作者简介:叶泽平(1971—),男,四川自贡人,高级工程师,从事汽轮发电机组振动故障诊断和处理工作。

Analysis and Identification of Friction Vibration of Turbo-Generator Units

YE Ze-ping, DAI Wei   

  1. The Commissioning and Test Institute of Sichuan Electric Power Industry, Chengdu 610072, China
  • Received:2013-07-26 Online:2013-12-23 Published:2015-12-10

摘要: 汽轮发电机组的径向和轴向间隙都很小,当间隙消失时就会出现动静碰摩,引起机组的摩擦振动。介绍了汽轮发电机组摩擦振动产生的机理、时间和部位,通过分析径向碰摩和轴向碰摩产生的原因与特征,指出了不同情况下摩擦振动的辨识方法。最后,提出了为防止摩擦振动发生,在机组制造、安装、检修、启动和运行中所需采取的措施。

关键词: 汽轮发电机组, 动静碰摩, 摩擦振动

Abstract: The axial and radial clearances of turbine-generator units are quite small. Therefore collision and friction will happen in the case of diminishing axial or radial clearances between the rotating and the stationary parts, which will cause unit vibrations. In this paper, the mechanism, occasion and location of the vibration caused by collision and friction are introduced. Through the analysis on the causes and characteristics of the axial and radial collision and friction, the methods for identifying the vibration under different conditions are presented. Finally, measures to prevent the vibration in the manufacturing, installation, maintenance, startup and running of the units are put forward.

Key words: steam turbine generator, collision and friction between rotating and stationary parts, frictional vibration

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