全程给水控制在400MW9F燃机中的应用Application of Complete Process Feed-water Control in 9F Natural Gas Unit
余华军,张建江
YU Hua-jun1,ZHANG Jian-jiang2(1.ZheJiang Electric Power Construction Corporation
摘要(Abstract):
浙江某电厂2台西门子9F级400 MW天然气单轴联合循环发电机组,余热锅炉为三压再热自然循环卧式炉,每台机组配置2台100%容量给水泵。高中压给水系统共用1台电动给水泵,简化了工艺过程,降低了设备投资及能耗,但给水系统耦合程度高,自动控制难度大。通过采用合理的控制策略,优化顺序控制逻辑,实现了全程给水控制。
Two SEIMENS 9F natural gas combined circulation units with single shaft are configured in a power plant in Zhejiang province.Each unit has 2 100% feed-water pumps,which are shared by high pressure and intermediate pressure system.This design makes technic more simply and decreases the project invest.Meanwhile,the automatic control of feed-water system is more difficult,because of the high coupling.Based on the commissioning work,the article narrates the method of complete process feed-water control in detail,and brings forward another control strategy for energy saving.
关键词(KeyWords):
全程;给水控制;9F燃机
complete process;feed-water control;9F natural gas unit
基金项目(Foundation):
作者(Author):
余华军,张建江
YU Hua-jun1,ZHANG Jian-jiang2(1.ZheJiang Electric Power Construction Corporation
DOI: 10.19585/j.zjdl.2009.02.011