Patent ID: 6349536
Filing Date: 2002-02-26
Classification: F02C,F05D

Abstract:
A multifunctional water injection manifold device, to be used in a liquid mono-fuel gas turbine or a liquid/gas dual-fuel gas turbine, comprisinga water injection manifold to be filled with water to be injected into a combustor to lower combustion gas temperature for NOx reduction; an air communication means having an air vent pipe and an air vent valve, provided at a top portion of said water injection manifold, said air communication means being operable to allow said water injection manifold to communicate with the air; and a pressure type check valve interposed in a branch pipe for supplying said combustor with the water to fill said water injection manifold, said pressure type check valve being operable to allow the water in said water injection manifold to flow freely toward said combustor when a differential pressure between said water injection manifold and said combustor is at least a predetermined differential pressure, and being operable to close a communication between said water injection manifold and said combustor when said differential pressure is less than said predetermined differential pressure.