摘要
本文提出了一个三重冗余的汽轮机保安系统,它且有三个安全独立的超速保护电液控制通道,三个通道的输出压力经一个三中取二液压表决器表决处理,表决结果再由一个高可靠及高响应平板式液压阀进行液压放大,最终利用这个放大了的液压信号去控制汽轮机进汽口的快关阀图3。
This paper proposes a triple redundant safety system for steam turbine.The safety system has three independent electro-hyduaulic over-speed protection channels,and the output pressures are processed by a two out of three hydraulic voter.The voting result is then amplified by a plate-type hydraulic valve,which is of high response and reliability.Finally this amplified hydraulic signal is used to control the rapid-action-stop valve in the steam admission port of the turbine.3figs.,2refs.
出处
《湘潭矿业学院学报》
1998年第3期56-60,共5页
Journal of Xiangtan Mining Institute
基金
国家自然科学基金
关键词
液压表决
汽轮机
保安系统
电液控制
hydraulic voting,redundant,safety system,steam turbine