Huadian Technology ›› 2011, Vol. 33 ›› Issue (2): 24-26.

• 技术交流 • Previous Articles     Next Articles

Reasons analysis and preventive measures on larger opening of normal drainage regulating valve of highpressure heater

BI Yuheng, L Pengfei, NI Guodong   

  1. Anhui Huadian Suzhou Power Generation Corporation Limited, Suzhou 234101, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-02-25 Published:2011-02-25

Abstract: The reasons of larger opening of normal drainage regulating valve of highpressure heater No.1 in 600MW supercritical unit in a power plant were analyzed; and the solving methods and the preventive measures were put forward, which can be used as reference for the highpressure heater operation of other power plants. 

Key words: high-pressure heater, drainage, regulating valve, blockage, preventive measure