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.
出处
《南方能源建设》
2015年第1期46-50,共5页
Southern Energy Construction
关键词
联合循环
热力性能
高压主蒸汽
流量计
设计优化
combined cycle
thermal performance
high pressure main steam
flow meter
design optimization
