CCPP中蒸汽旁路和锅炉给水泵技术的研究.pdf

2015年第 期9 冶 金 动 力 总 第 187 期 METALLURGICAL POWER 37 热 电 CCPP中蒸汽旁路和锅炉给水泵技术的研究 徐迎超 ，樊 泳 ，阎 波 ，范晓明 ，寇彦德1 1 2 2 1 （北京首钢国际工程技术有限公司，北京， 首钢股份公司迁安钢铁公司，河北邯郸， ） 1. 100043;2. 064404 【摘 要】首钢迁钢公司 燃气—蒸汽联合循环（ ）发电工程结合国内机组运行情况，对燃 2伊50 MW CCPP 气—蒸汽联合循环发电机组系统做了以下改进：蒸汽系统增加蒸汽旁路，凝汽器设置为带旁路的凝汽器；余热 锅炉给水泵采用高低压双输出给水泵技术。解决了机组在启停机时蒸汽放散的问题，同时回收了除盐水，降低 了给水泵的电耗，年增加净利润 万元。 94 【关键词】CCPP；蒸汽旁路；凝汽器；给水泵 【中图分类号】 【文献标识码】 【文章编号】 （ ） TM611 B 1006-6764 2015 09-0037-03 A Study on the Steam Bypass and Boiler Water Feed Pump Technology in CCPP 1 1 2 2 1 Xu Ying chao, Fan Yong, Yan Bo, Fan Xiao min, Kou Yan de (1. Beijing Shougang International Engineering Technology Co., Ltd., Beijing, 100043; 2. Shougang Qianan Iron and Steel Company, Handan, Hebei 064404, China) [Abstract] The 2伊50 MW gas-steam combined cycle power project of Shougang Qianan Steel made the following improvements on the CCPP system based on the actual operation conditions of domestic CCPP units: adding a steam bypass in the steam system, the con原 denser to be set up with a bypass and adopting high and low pressure dual output technolo原 gy in the HRSG feed water pump. This upgrading modification has solved the problem of steam bleeding at unit startup and shutdown, at the same time recovered desalted water and reduced the power consumption of the water pump, which increased net profit