中国电力 ›› 2020, Vol. 53 ›› Issue (12): 284-292,300.DOI: 10.11930/j.issn.1004-9649.202003147

• 发电 • 上一篇    下一篇

大型汽轮发电机组非典型故障分析

张学延, 屈杰, 何国安, 朱蓬勃, 姜广政, 潘渤   

  1. 西安热工研究院有限公司,陕西 西安 710054
  • 收稿日期:2020-03-22 修回日期:2020-05-20 发布日期:2020-12-16
  • 作者简介:张学延(1962—),男,高级工程师(教授级),从事汽轮发电机组振动故障诊断、治理和事故分析工作,E-mail: zhangxueyan@tpri.com.cn
  • 基金资助:
    中国华能集团有限公司科技项目(HNKJ18-H16)

Case Analysis of Several Atypical Faults of Large Turbo-Generator Set

ZHANG Xueyan, QU Jie, HE Guoan, ZHU Pengbo, JIANG Guangzheng, PAN Bo   

  1. Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, China
  • Received:2020-03-22 Revised:2020-05-20 Published:2020-12-16
  • Supported by:
    This work is supported by Science and Technology Project of China Huaneng Group Co., Ltd. (No.HNKJ18-H16)

摘要: 介绍近年来因安装检修失误引起的大型汽轮发电机组几起“非典型”故障案例,分析故障特征、产生的原因和造成的后果。故障涉及轴向位移超限、汽轮机出力和热力参数突变、振动异常。这些案例的分析过程和经验教训可为以后机组的故障和事故分析以及安装检修提供参考。

关键词: 汽轮发电机组, 非典型故障, 案例分析, 安装检修, 轴向位移, 振动

Abstract: This paper presents several atypical fault cases of large steam generator set caused by installation or maintenance mistakes in recent years. The fault symptoms, causes and consequences are described and analyzed in details, which involved axial displacement overrun, sudden change of turbine output and thermal parameters, or abnormal vibrations. The analytical procedures and experience of the cases can provide reference for the analysis of faults and accidents as well as the installation and maintenance guide of the unit in the future.

Key words: turbo-generator set, atypical fault, case analysis, installation and maintenance, axial displacement, vibration