华电技术 ›› 2011, Vol. 33 ›› Issue (11): 23-27.

• 技术交流 • 上一篇    下一篇

数字电调系统中调门突开原因分析

曾爱平   

  1. 湖南华电长沙发电有限公司,湖南长沙410203
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-11-25 发布日期:2011-11-25

Reason analysis of suddenly opening of mediumpressure regulating valve in digital electrohydraulic control system

ZENG Aiping   

  1. Hunan Changsha Power Generation Corporation Limited, Changsha 410203, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-11-25 Published:2011-11-25

摘要: 湖南长沙发电有限公司 #1机组大修后,先后出现2次冲转暖机过程中中调门突然开启、转速上升很快且控制不住转速的情况,详细分析了数字电调控制系统及中调门突开的原因,采取了有效措施后,数字电调系统中调门突开现象消失。

关键词: 数字电调系统, 暖机逻辑, 升速, 原因分析

Abstract: In the Hunan Changsha Power Generation Corporation Limited, after the overhaul of the unit No.1, the mediumpressure regulating valve suddenly opened during rolling the turbine and warming up two times, and the rotate speed was increasing quickly and can not be controlled. The digital electrohydraulic control system and the reason of the mediumpressure regulating valve suddenly opening were analyzed in detail. After the effective measures were adopted, the suddenly opening of the mediumpressure regulating valve was not occurred again. 

Key words: digital electro-hydraulic control system (DEH), warming up logic, speed increasing, reason analysis