FUEL SUPPLY PIPELINE SYSTEM FOR GAS TURBINE

摘要

A fuel supply line system used for a gas turbine, including: fuel gas control valves used for controlling delivery to the gas turbine; a first line used for connecting the fuel gas source to the control valves; a second line used for connecting the control valves to the gas turbine; a monitoring device, configured to be used for determining the pressure inside the pipe at the outlet of the second line near said control valve; and a controller, configured to reduce the effective flow area of the pressure control valves or close the control valves when the determined pressure inside the pipe of the second line is greater than a predetermined pressure.

主权项

1. A fuel supply pipeline system for a gas turbine, comprising:
a control valve to control a gas conveyed to the gas turbine; a first pipeline to connect a gas source to the control valve; a second pipeline to connect the control valve to the gas turbine; a monitoring device, configured to determine an in-pipe pressure of the second pipeline at a position adjacent to an outlet of the control valve; and a controller, configured to reduce an effective through-flow area of the control valve or close the control valve when the in-pipe pressure determined in the second pipeline is relatively greater than a threshold in-pipe pressure.