The solenoid valve for steam turbine shutdown in a thermal power plant is one of the essential components to protect the safe operation of steam turbines.To ensure the operation reliability of solenoid valve for steam turbine shutdown,it is necessary to perform operation tests of the solenoid valves for turbine shutdown regularly.In view of the steam turbine trips during the periodic operation tests of the solenoid valves,the working principle of a security oil system and the function of solenoid valves for turbine shutdown are studied,based on which the steam turbine trips are analyzed with the causes of such turbine trips found out and the relevant technical measures are put forward so as to prevent from such events.
关键词
汽轮机/停机电磁阀/保安油/跳闸
Key words
steam turbine/solenoid valve for turbine shutdown/security oil/trip