CAUSE ANALYSIS OF OUTLET VALVE VIBRATION FOR TURBINEDRIVEN FEED WATER PUMP

TONG Gang1; ZHANG Ye1; HOU Shuang2; SONG Shu-jun3; WANG Li31.North-east China Electric Power Science Research Institute Co Ltd

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CAUSE ANALYSIS OF OUTLET VALVE VIBRATION FOR TURBINEDRIVEN FEED WATER PUMP

更新时间：2025-09-28

- CAUSE ANALYSIS OF OUTLET VALVE VIBRATION FOR TURBINEDRIVEN FEED WATER PUMP
- Thermal Power Generation Vol. 38, Issue 8, Pages: 98-101(2009)
- 作者机构：
  
  1. 东北电力科学研究院有限公司
  2. 辽宁红沿河核电有限公司
  3. 华能丹东电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2009
- 稿件说明：
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TONG Gang1, ZHANG Ye1, HOU Shuang2, et al. CAUSE ANALYSIS OF OUTLET VALVE VIBRATION FOR TURBINEDRIVEN FEED WATER PUMP[J]. Thermal power generation, 2009, 38(8): 98-101.
DOI：

TONG Gang1, ZHANG Ye1, HOU Shuang2, et al. CAUSE ANALYSIS OF OUTLET VALVE VIBRATION FOR TURBINEDRIVEN FEED WATER PUMP[J]. Thermal power generation, 2009, 38(8): 98-101. DOI：

摘要

针对华能丹东电厂汽动给水泵(汽泵)在高转速运行时出口阀出现的强烈振动故障

通过现场试验及解体检查

对其振动原因进行了较详细地诊断分析。分析表明

汽泵动静间隙增大

平衡盘磨损严重

泵内流体不稳定

以及管道阀的连接耦合响应等是造成出口阀振动的主要原因。根据流固耦合振动理论

分析探讨了管道系统响应问题。处理时更换了泵芯

使故障得到解决。

Abstract

Directing against the violent vibration trouble appeared on the outlet valve during high rotation speed operation of the turbine-driven feed water pump in Huaneng Dandong Power Plant

the causes leading to said vibration have been diagnosed and analysed in detail.Analysis shows that the main causes of said vibration are as follows:increasing of the gap between movable and stationary parts in the turbine-driven feed water pump;severe wornout of the balancing disk;unstable fluid in the said pump;and connected response between pipeline and valve etc..Based on the theory of fluid-solid coupling

the problem of response in pipeline system has been analysed and discussed.During the time of repair

the core of pump has been replaced

and the said trouble being eliminated.

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Related Author

WEI Jiang

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LIN Xinkai North China Electric Power Science Research Institute

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