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A gas turbine combustor for a gas turbine plant comprises an outer casing and a combustor liner disposed in the outer casing, the interior of the combustor liner constituting a combustor chamber divided into a first stage of combustion area and a second stage of combustion area, disposed downstream

A gas turbine combustor for a gas turbine plant comprises an outer casing and a combustor liner disposed in the outer casing, the interior of the combustor liner constituting a combustor chamber divided into a first stage of combustion area and a second stage of combustion area, disposed downstream of the first stage combustion area. The gas turbine combustor further comprises a nozzle member for supplying a first stage fuel into the first stage combustion area, a header for supplying a second stage fuel into the second stage combustion area, and a header for further supplying water or water vapor into the first stage combustion area. The nozzle member and both the headers are disposed in an end plate closing one end of the outer casing in a concentrical fashion. The flow rates of the first and second stage fuels and the water vapor are controlled by a control unit equipped with the gas turbine combustor.

대표청구항 ▼

A gas turbine combustor for a gas turbine plant comprising: an outer casting having an end plate closing one end of said outer casing; an inner cylinder constituting a combustor liner coaxially located with said outer casing, an interior of said combustor liner being divided into a first stage of co

A gas turbine combustor for a gas turbine plant comprising: an outer casting having an end plate closing one end of said outer casing; an inner cylinder constituting a combustor liner coaxially located with said outer casing, an interior of said combustor liner being divided into a first stage of combustion area which is disposed on an upstream side near said end plate and in which a first stage fuel and air are mixed and burned and a second stage of combustion area which is disposed on a downstream side of said first stage combustion area and in which a premixture of a second stage fuel diluted by air is supplied, said combustor liner being provided with a port means through which said premixture is supplied thereinto; a first supply means including nozzle means for supplying water or vapor into said first stage of combustion area; a second supply means for supplying the second stage fuel into said second stage combustion area; and means for stabilizing the combustion in said first stage of combustion area and holding a flame in said first stage of combustion area; wherein the water or water vapor is mixed with first stage fuel at a high load operation period of a gas turbine so as to form a stabilized flame having no locally highly heated area in said first stage of combustion area by said stabilizing and holding means and the second stage fuel is burned with the premixture in said second stage of combustion area.