西门子1 000 MW汽轮机组轴系碰磨故障特性研究

doi:10.11930/j.issn.1004-9649.201910064

中国电力 ›› 2020, Vol. 53 ›› Issue (6): 133-139.DOI: 10.11930/j.issn.1004-9649.201910064

西门子1 000 MW汽轮机组轴系碰磨故障特性研究

崔亚辉¹, 姚剑飞², 徐亚涛¹, 渠福来¹, 孙鹏¹, 王增宏³

1. 神华国华（北京）电力研究院有限公司，北京 100025;
2. 北京化工大学，北京 100029;
3. 浙江国华浙能发电有限公司，浙江宁海 315600

收稿日期:2019-10-16 修回日期:2020-01-13 发布日期:2020-06-05
作者简介:崔亚辉(1979-),男,博士,高级工程师,从事旋转机械振动故障诊断及处理工作,E-mail:cuiyahuicui@163.com;姚剑飞(1979-),男,通信作者,博士,副教授,从事振动理论研究,E-mail:yaojf@mail.buct.edu.cn
基金资助:
国家自然科学基金资助项目(51975037)；北京市自然科学基金资助项目(3132025)

Theoretical Study and Experimental Research on Collision Fault of Shaft System of Siemens 1 000 MW Steam Turbine Unit

CUI Yahui¹, YAO Jianfei², XU Yatao¹, QU Fulai¹, SUN Peng¹, WANG Zenghong³

1. Shenghua Guohua (Beijing) Electric Power Research Institute Co., Ltd., Beijing 100025, China;
2. Beijing University of Chemical Technology, Beijing 100029, China;
3. Guohua Zhejiang Provincial Energy Group Power Generation Co., Ltd., Ninghai 315600, China

Received:2019-10-16 Revised:2020-01-13 Published:2020-06-05
Supported by:
This work is supported by National Natural Science Foundation of China (No.51975037), Beijing Natural Science Foundation (No.3132025)

摘要/Abstract

摘要： 某西门子1 000 MW机组停机过程中，高压转子出现振动及其偏心值异常增大故障，存在高压转子发生永久弯曲的重大风险，严重威胁了机组的安全性。基于有限元法建立了轴系的动力学模型，分析了高压转子发生动静碰磨的动态响应，获得了高压转子发生碰磨的故障特征。采用数值仿真模拟了该型机组停机过程中高压转子的异常振动。研究结果表明，该机组停机过程中，高压转子振动及其偏心值异常增大的原因是端部汽封碰磨。通过开展高压缸径向间隙碰缸试验，调整高压转子与汽缸之间的径向间隙，解决了该问题，消除了高压转子可能发生永久弯曲的重大风险。

关键词: 西门子1 000 MW汽轮机组, N+1支撑轴系, 碰磨故障, 高压转子, 永久弯曲

Abstract: During the shutdown process of a Siemens 1 000 MW steam turbine unit, the vibration occurred at the high-pressure rotor with the abnormal increase of its eccentricity, which has imposed high risk of permanent bending in the high-pressure rotor and endangered the operation safety of the unit. In this paper, the dynamic model of the shafting of the unit is established by using the finite element method. Then, the dynamic response of the high-pressure rotor with respect to dynamic and static frictions is analyzed and the rubbing fault characteristics of the high-pressure rotor are obtained. In addition, the abnormal vibration of the high-pressure rotor during the shutdown process of the unit is numerically simulated. The research results show that the rubbing of the gland seal during the shutdown process of the unit is the major cause for the abnormalities of the high-pressure rotor. Through the radial clearance test to adjust the radial clearance between the high pressure rotor and the cylinder, the problem has been solved successfully. Therefore, the high risk of permanent bending of the high-pressure rotor is eliminated.

Key words: Siemens 1 000 MW steam turbine unit, N+1 supported shafting, rubbing fault, high pressure rotor, permanent bending

崔亚辉, 姚剑飞, 徐亚涛, 渠福来, 孙鹏, 王增宏. 西门子1 000 MW汽轮机组轴系碰磨故障特性研究[J]. 中国电力, 2020, 53(6): 133-139.

CUI Yahui, YAO Jianfei, XU Yatao, QU Fulai, SUN Peng, WANG Zenghong. Theoretical Study and Experimental Research on Collision Fault of Shaft System of Siemens 1 000 MW Steam Turbine Unit[J]. Electric Power, 2020, 53(6): 133-139.

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西门子1 000 MW汽轮机组轴系碰磨故障特性研究

Theoretical Study and Experimental Research on Collision Fault of Shaft System of Siemens 1 000 MW Steam Turbine Unit

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西门子1 000 MW汽轮机组轴系碰磨故障特性研究

Theoretical Study and Experimental Research on Collision Fault of Shaft System of Siemens 1 000 MW Steam Turbine Unit

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