• CN:11-2187/TH
  • ISSN:0577-6686

›› 1995, Vol. 31 ›› Issue (3): 61-66.

• 论文 • 上一篇    下一篇

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汽轮机进汽管道压力脉动及其对轴系扭振稳定性的影响

于达仁;徐基豫 鲍文   

  1. 哈尔滨工业大学
  • 发布日期:1995-05-01

EFFECT OF PRESSURE OSCILLATION IN STEAM PIPE ON TORSIONAL OSCILLATION OF TURBOSET SHAFT SYSTEM

Yu Daren;Xu Jiyu;Bao Wen   

  1. Harbin Institute of Technology
  • Published:1995-05-01

摘要: 介绍了一种能导致汽轮机轴系扭振失稳的因素。在一次电厂试验中发现,调节汽阀的快速操作会激起进汽管中的压力脉动;对配有高速调节系统的汽轮机,如果蒸汽管道压力脉动的固有频率与轴系扭振固有频率相近,则会发生轴系不稳定扭振,并可能造成轴系破坏。

关键词: 进汽管, 扭振, 汽轮机, 压力脉动

Abstract: A new fact is introduced which may lead to unstable shaft torsional oscillation of steam turbine. In a power plant experiments it was found that the operation of governing system would cause the pressure oscillation in turbine living steam inlet pipeline. For steam turbine with fast response governor, if the natural frequency of pressure oscillation is equal or close to the shaft torsional frequency, the unstable torsional oscillation would occure, and may lead to the damage of shaft system.

Key words: Steam pipe Pressure oscillation, Steam turbine, Torsional oscillation