To provide a gas turbine combustor tail cylinder outlet structure capable of reducing a temperature difference of a flange formed at a tail cylinder outlet.
A flange 2 comprises a cooling medium flow passage 22 extending along an internal periphery thereof, a cooling medium flow passage 23 extending along left and right side surfaces, and a heating medium flow passage 24 formed along upper and lower surfaces. The internal periphery or side surfaces of the flange are cooled with a cooling medium, and the upper and lower surfaces of the flange are heated with a heating medium, whereby a temperature difference of the flange is reduced. As the cooling medium, there are useable compressed air, low temperature vapor, or a fuel, while as the heating medium there is useable high temperature vapor or combustion gas.
HANEDA SATORU
TANAKA KATSUNORI
