华电技术 ›› 2011, Vol. 33 ›› Issue (7): 56-58.

• 技术交流 • 上一篇    下一篇

高压主汽门及调门卡涩的原因分析与防范措施

刘平,吕鹏飞   

  1. 安徽华电宿州发电有限公司,安徽宿州234101
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-07-25 发布日期:2011-07-25

Analysis on reasons of jam fault of HP main steam valve and HP governing valve and preventive measures

LIU Ping, L Pengfei   

  1. Anhui Huadian Suzhou Power Generation Corporation Limited, Suzhou 234101, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-07-25 Published:2011-07-25

摘要: 介绍了某电厂600MW超临界机组高压主汽门、高压调门的结构、作用,分析了高压主汽门、高压调门卡涩原因,提出了防止高压主汽门、高压调门卡涩的具体方法和措施。

关键词: 高压主汽门, 止退螺钉, 高压调节汽门, 卡涩, 高温氧化皮, 防范措施

Abstract: The structure and the functions of HP main steam valve and HP governing valve of 600MW supercritical unit in a power plant were introduced. The reasons of jam fault of HP main steam valve and HP governing valve were analyzed; and concrete methods and measures to prevent the jam fault of HP main steam valve and HP governing valve were put forward.

Key words: high pressure (HP) main steam valve, backing-stop screw, high pressure(HP) governing valve, jam, high-temperature oxide skin, preventive measure