华电技术 ›› 2019, Vol. 41 ›› Issue (1): 64-66.

• 技术交流 • 上一篇    下一篇

高背压供热改造中给水泵汽轮机控制方式研究

  

  1. 华电青岛发电有限公司,山东青岛〓266000
  • 出版日期:2019-01-25 发布日期:2019-02-14

The research on turbine control mode of feed water pump in high back pressure heating reformation

  1. Huadian Qingdao Power Generation Company Limited, Qingdao 266000, China
  • Online:2019-01-25 Published:2019-02-14

摘要:

华电青岛发电有限公司 #2机组高背压循环水供热改造过程中,将给水泵汽轮机控制改为由高压调节阀控制低压调节阀前压力,低压调节阀控制转速的控制方式。介绍了给水泵汽轮机电液控制(MEH)系统高压调节阀控制改造的关键技术,对改造实施后的运行状况进行测试和分析。改造后的良好效果证明了改造的合理性和有效性。

关键词:

Abstract:

In the high back pressure heating reformation of No.2 unit in Huadian Qingdao Power Generation Company Limited, a control mode for feed water pump turbine is taken, in which high pressure regulating valve is used to control the prepressure of low pressure regulating valve, and low pressure regulating valve is used to control rotation ratio. The key technology of the high pressure regulating valve control reformation of the micro electrohydraulic control system (MEH) is introduced, and the operating condition after the transformation is tested and analyzed. The good results after the transformation prove the rationality and effectiveness of the transformation.

Key words: