汽轮机控制系统中阀门重叠度的研究  

Study of Valve Overlapping of Steam Turbine Control System

作　　者：田松峰[1] 史志杰[1] 闫丽涛[1] 

机构地区：[1]华北电力大学动力工程系,保定071003

出　　处：《汽轮机技术》2008年第6期448-450,共3页Turbine Technology

摘　　要：针对单阀切换顺序阀时引起的负荷波动、汽轮机主要运行参数出现异常变化问题,对顺序阀运行方式下重叠度的确定进行了研究分析,通过调节系统试验确定合理重叠度的方法,并分析了重叠度对调节系统和调节级效率的影响。On part load fluctuation occurred during switching from single valve to sequential valve operation, and abnormal variation of main operation parameters occurred after sequential valve was put into operation. In view of these problems, this paper studied the nozzle governing overlap of operation mode of sequential valve, with which the rational overlapping fixed by a further test performed with the governing system, and the influence of governing stage efficiency and the governing system.

关 键 词：重叠度 流量特性曲线 调节级效率 调节系统 

分 类 号：TK263.72[动力工程及工程热物理—动力机械及工程]