Analysis and Optimization of Safety Oil Circuit Problems in Gas Turbine
The safety oil trip circuit of the Mitsubishi M701F4 gas steam combined cycle split shaft arrangement is originally e-quipped with only one trip solenoid valve,thereby presenting a safety concern of potential unit refusal or misoperation in the e-vent of a single solenoid valve failure.Through the optimization of the safety oil circuit and trip solenoid valve control circuit of the gas turbine,a transformation was implemented whereby a single trip solenoid valve was replaced by four solenoid valves fea-turing dual channels.Initially first connected in parallel and subsequently in series for control,this modification effectively miti-gated the safety risks associated with unit misoperation or refusal of operation.Concurrently,the implementation of online tes-ting function for the solenoid valve was achieved,improving operational reliability,and it has universal promotion value in the same type of gas turbine.
unit safety oiltrip solenoid valvecontrol loopcircuit designoptimization and renovation
NETL
NSTL
万方数据
