300MW空冷机组高压转子汽流激振分析

魏江; 宁罡; 林新楷

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300MW空冷机组高压转子汽流激振分析

发电技术论坛 | 更新时间：2025-09-28

- 300MW空冷机组高压转子汽流激振分析
- ANALYSIS OF STEAM FLOW EXCITED VIBRATION ON HIGH-PRESSURE ROTOR OF A 300 MW AIR-COOLED UNIT
- 热力发电 2011年40卷第5期页码：60-62
- 作者机构：
  
  华北电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TK263.61
- 纸质出版：2011
- 稿件说明：
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魏江, 宁罡, 林新楷. 300MW空冷机组高压转子汽流激振分析[J]. 热力发电, 2011,40(5):60-62.

WEI Jiang, NING Gang, LIN Xinkai North China Electric Power Science Research Institute. ANALYSIS OF STEAM FLOW EXCITED VIBRATION ON HIGH-PRESSURE ROTOR OF A 300 MW AIR-COOLED UNIT[J]. Thermal power generation, 2011, 40(5): 60-62.
魏江, 宁罡, 林新楷. 300MW空冷机组高压转子汽流激振分析[J]. 热力发电, 2011,40(5):60-62. DOI：

WEI Jiang, NING Gang, LIN Xinkai North China Electric Power Science Research Institute. ANALYSIS OF STEAM FLOW EXCITED VIBRATION ON HIGH-PRESSURE ROTOR OF A 300 MW AIR-COOLED UNIT[J]. Thermal power generation, 2011, 40(5): 60-62. DOI：

摘要

某热电厂一台东方汽轮机厂(东汽)300 MW空冷机组带负荷过程中汽轮机高压转子振动突升

经故障特征分析认为其原因为汽流激振力使2号轴承的稳态发生了变化

转子稳定性下降。对此

提出了提高轴承稳定性

减少蒸汽作用力等措施

实施后振动故障得以消除。

Abstract

The sudden rise of high-pressure rotor vibration of a 300 MW air-cooled unit manufactured from Dongfang Steam Turbine Works

and being equipped in one thermal power plant

has been analysed from the typical fault properties of steam flow excited vibration.It is believed that the cause leading to sudden rise of vibration is the steam flow excited force

which makes the steady-state of bearing no.2 to be change

resulting in stability reduction of the rotor.Some corresponding disposal measures have been given

after implementation

the problem of vibration fault has been resolved.

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