节流配汽汽轮机滑压优化的理论研究

Theoretical Study on Optimization of Sliding Pressure of Throttle-governed Steam Turbines

根据热力学和汽轮机原理分析相同负荷下汽轮机本体各级、回热系统及给水泵等辅机的运行参数随主蒸汽压力的变化情况,探讨影响机组滑压经济性的主要因素,并推导出节流配汽汽轮机和单阀运行的喷嘴配汽汽轮机在纯滑压运行方式下经济性最佳的结论。

According to the principle of thermodynamics and steam turbine,this paper analyzes the change of operation parameters of various stages of steam turbine,regenerative system and feed pump with the main steam pressure under the same load,discusses the main factors affecting the unit's sliding pressure economy,and deduces the conclusion that the economy of the throttle-governed steam turbine and the nozzle-governed steam turbine with single valve is the best under the pure sliding pressure operation mode.