张良军,李康良
ZHANG Liang-jun,LI Kang-liang(Guodian Zhejiang Beilun No.1 Power Generation Co.

• 1:国电浙江北仑第一发电有限公司

摘要(Abstract)：

分析了北仑发电厂600 MW机组高加疏水控制系统存在的问题,提出了通过单室平衡容器实现疏水水位差压式测量;进行疏水水位测量压力温度修正和疏水水位控制由基地式控制改为DCS控制的改进方案,可为存在类似问题的发电厂提供参考和借鉴。
This paper analyses the existing problems of the drainage control system for high pressure heaters of 600 MW units in Beilun Power Plant and offers the improvement scheme,in which the drainage water level differential pressure measurement is achieved with a single chamber balance vessel.In addition,the pressure and temperature are corrected for drainage water level measurement and local control of drainage water level.is replaced with distributed control system(DCS).It can serve as a reference for other power plants with the similar problems.

关键词(KeyWords)： 高压加热器;疏水;基地式控制;压力修正;端差
high pressure heater;drainage;local control;pressure correction;terminal temperature difference

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 张良军,李康良
ZHANG Liang-jun,LI Kang-liang(Guodian Zhejiang Beilun No.1 Power Generation Co.

DOI: 10.19585/j.zjdl.2011.03.012

参考文献(References)：

• 国际水和水蒸汽热力性质学会(IAPWS).工业用水和水蒸汽热力性质计算公式[G].1997.
• 胡辉武.高加水位保护逻辑的改进和完善[J].湖南电力,2006(2):42-44.