On line replacement of valve servo valve and the analysis of the servo valve jam of 600MW steam turbine

Huadian Technology ›› 2016, Vol. 38 ›› Issue (2): 35-38.

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On line replacement of valve servo valve and the analysis of the servo valve jam of 600MW steam turbine

Huaneng Tongchuan Zhaojin Power Plant,Tongchuan 727000,China

Online:2016-02-25 Published:2016-04-15

Abstract

Abstract:

Abstract:As for the jam fault of the servo valve of the 600MW steam turbine,three online replacements scheme were put forward.compared with each other,the minimum risk scheme was selected ultimately.The measures were taken at the time of changing the medium pressure servo valve.At the same time,the reasons for the servo valve jam were analyzed,and the relevant measures were put forward.

Key words: Keywords:medium pressure regulating valve, servo valve, online replacement；reason analysis, reform measures

ZHANG Xuehai. On line replacement of valve servo valve and the analysis of the servo valve jam of 600MW steam turbine[J]. Huadian Technology, 2016, 38(2): 35-38.

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On line replacement of valve servo valve and the analysis of the servo valve jam of 600MW steam turbine

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