ANALYSIS AND DISPOSAL OF VIBRATION FAULT IN DEBUGGING PERIOD OF 600 MW UINT

LU Shuanglong1; YANG Jiangang2; WANG Shushen1; LI Yanghai1; XU Tao1 1.Electric Power Testing and Research Institute under Hubei Electric Power Cor.

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ANALYSIS AND DISPOSAL OF VIBRATION FAULT IN DEBUGGING PERIOD OF 600 MW UINT

更新时间：2025-09-28

- ANALYSIS AND DISPOSAL OF VIBRATION FAULT IN DEBUGGING PERIOD OF 600 MW UINT
- Thermal Power Generation Vol. 41, Issue 7, Pages: 89-91(2012)
- 作者机构：
  
  1. 湖北省电力公司电力试验研究院
  2. 东南大学火电机组振动国家工程研究中心
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM311
- Published：2012
- 稿件说明：
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LU Shuanglong1, YANG Jiangang2, WANG Shushen1, et al. ANALYSIS AND DISPOSAL OF VIBRATION FAULT IN DEBUGGING PERIOD OF 600 MW UINT[J]. Thermal power generation, 2012, 41(7): 89-91.
DOI：

LU Shuanglong1, YANG Jiangang2, WANG Shushen1, et al. ANALYSIS AND DISPOSAL OF VIBRATION FAULT IN DEBUGGING PERIOD OF 600 MW UINT[J]. Thermal power generation, 2012, 41(7): 89-91. DOI：

摘要

某台600MW机组在调试期间发生高中压转子轴振不稳定、低压转子振动超标、发电机转子轴振超标和不稳定等故障。频谱分析结果表明

振动主要由转子不平衡、转子加工偏差、动静碰摩等所致。经实施高速动平衡、补偿、修刮轴承油挡等措施后

在满负荷工况下

除发电机转子7号轴承X方向

8号轴承X、Y方向外

其余轴承轴振均50μm

瓦振15μm

振动故障得以消除。

Abstract

During the debugging period of one 600 MW unit

vibration faulties

such as unstable shaft vibration of high-pressure and medium-pressure rotors

vibration surpassing set standard of low-pressure rotor

shaft vibration surpassing set standard and unstable vibration of generator's rotor etc.

have been discovered.Results of frequency specturm analysis shows that the main causes leading to vibration are unblance of the rotor

deviation in rotor fabrication

and impact-rubbing between movable and stationary parts etc..After implementation of some measures

such as high-speed dynamic balancing compensation

rescraping the oil retainer of bearings etc.

excepting bearing no.7 of the generator rotor in x-direction

and bearing no.8 in x-and y-directions

the shaft vibration of other bearings all are 50 μm

the bearing shoe vibration 15 μm

the vibration faulties all being eliminated.

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