Huadian Technology ›› 2015, Vol. 37 ›› Issue (3): 31-33.

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Reformation of multistage water seal device for return water of feed pump sealing water

  

  1. (Guangdong Yudean Jinghai Power Generation Company Limited, Huilai 515200, China)
  • Online:2015-03-25 Published:2015-05-14

Abstract: Abstract:The working principle of multistage water seal device for return water of the turbofeed pump sealing water in the 1000MW supercritical unit of Huilai Power Plant was introduced. The problems existing in design, installation and operation of the multistage water seal device were analyzed. A feasible reform scheme is developed and implemented. The longstanding problem of return water recovery of feed pump sealing water was solved.

Key words: Keywords:1000MW supercritical unit, feed pump, sealing water, multistage water seal, reformation