CONTROLLED PURGING METHOD OF FUEL FEED SYSTEM IN GAS TURBINE COMBUSTOR

摘要

PROBLEM TO BE SOLVED: To provide a controlled purging method of a fuel feed system in a gas turbine combustor. SOLUTION: The combustor is provided with one or more burners and each of the burners includes at least one pilot injector 36 and one or more main injectors 38 for internal rotation of gaseous fuel inside a burner. When a turbine is in a diffusion flame function mode, the one or more main injectors 38 and at least a part of a related manifold 34 are purged by a stream of gaseous fuel. COPYRIGHT: (C)2009,JPO&INPIT