SYSTEM FOR PURGING A FUEL HAVING REACTIVE GAS
This system for purging a fuel containing hydrogen comprises a gas turbine. The gas turbine comprises at least one combustion chamber ( 20 ) provided with at least one injector ( 52 ) of the fuel, an exhaust section and a hot gas circuit going from the combustion chamber ( 20 ) to the exhaust section. The system comprises at least one point of injection (A, A′) of air and/or of inert gas positioned on the hot gas circuit.
1 . A system system for purging a fuel containing hydrogen, comprising:
a gas turbine, said gas turbine comprising at least one combustion chamber provided with at least one injector of said fuel, an exhaust section and a hot gas circuit, going from said combustion chamber to said exhaust section,
wherein at least one point of injection of air and/or of inert gas and/or of combustion inhibitor positioned on said hot gas circuit.
2 . The purging system according to claim 1 , wherein said at least one injection point is located downstream of the combustion zone of said at least one injector of said fuel.
3 . The purging system according to claim 1 , additionally comprising a cooling circuit having fixed blades located on said hot gas circuit, wherein said at least one injection point is located on said cooling circuit ( 50 ).
4 . The purging system according to claim 1 , wherein said system additionally comprises a distribution ring placed inside an exhaust downstream of said exhaust section, said at least one injection point being located on said distribution ring.
5 . The purging system according to claim 3 , wherein said at least one injection point is connected to an external feed source.
6 . The purging system according to claim 1 , wherein said inert gas is nitrogen.
7 . The purging system according to claim 1 , wherein said inert gas is carbon dioxide.
8 . The purging system according to claim 1 , wherein said inert gas is steam.