F级改进型联合循环主蒸汽系统压损研究及优化  

Pressure Drop Research and Design Optimization of Main Steam System in Advanced F Class Gas-steam Combined Cycle Power Plants

作　　者：郑赟[1] 

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广州510663

出　　处：《南方能源建设》2015年第1期46-50,共5页Southern Energy Construction

摘　　要：为了给燃气轮机联合循环工程提高蒸汽循环效率提供借鉴经验和优化方法,依托已投产F级改进型燃气轮机联合循环工程,采用GTpro软件平台,分析了该机组高压主蒸汽进汽压力对联合循环热力性能的影响,并计算得到此系统压损使机组出力的降幅随着高压主蒸汽进汽压力的提高而减小。通过深入研究高压主蒸汽流量测量作用和方法,借鉴常规燃煤火电超超临界汽轮机主蒸汽流量的间接测量技术,优化主蒸汽系统并取消流量计,从而提高机组效率,增加收益。To provide reference experiences and optimization methods for steam cycle performance of F advanced class combined cy- cle, impacts of high pressure main steam pressure drop are investigated by GTpro software. The calculation results show that the loss of power output becomes smaller caused by pressure drop when steam turbine inlet steam pressure grows higher. By the analysis of main steam flow measuring methods, flow meter along main steam piping could be cancelled, which makes steam turbine higher effi- ciency and produces more profits. The research and analysis could provide a optimized design method of main steam system for other gas-steam combined cycle projects.

关 键 词：联合循环 热力性能 高压主蒸汽 流量计 设计优化 

分 类 号：TK472[动力工程及工程热物理—动力机械及工程]