Cooling fluid guide for gas turbine and gas turbine
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsShinichi Higuchi, Takeshi Aso, Yasuhiro Horiuchi, Masaya Kato, Tomoyuki Matsui, Kenji Nanataki
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Abstract
The present invention provides a cooling fluid guide for a gas turbine, the cooling fluid guide comprising: a fixed part to be fixed either to piping for supplying a cooling fluid to a cooling fluid supply hole in a turbine casing or to the turbine casing; and a first guide part configured to cover at least a portion of the cooling fluid supply hole when viewed along the axial direction of the cooling fluid supply hole from the inside of the gas turbine in the radial direction in a state in which the fixed part is fixed to the piping or the turbine casing.
Claims7
A gas turbine cooling fluid guide for guiding a cooling fluid of a gas turbine, the gas turbine including a plurality of turbine stator vanes and a turbine casing which accommodates the plurality of turbine stator vanes and in which a cooling fluid supply hole for supplying the cooling fluid to the plurality of turbine stator vanes is formed, the gas turbine cooling fluid guide comprising:
- a fixed portion that is fixed to either a pipe for supplying the cooling fluid to the cooling fluid supply hole or the turbine casing;
- a first guide portion that is configured to cover at least a portion of the cooling fluid supply hole when viewed from an inside of the gas turbine in a radial direction along a direction of an axis line of the cooling fluid supply hole in a state in which the fixed portion is fixed to the pipe or the turbine casing;
- an upstream second guide portion that is plate-like and is configured to extend from an upstream end of the first guide portion toward an outside in the radial direction so as to include a first surface intersecting an axial direction of the gas turbine and extending along a circumferential direction of the gas turbine in the state in which the fixed portion is fixed to the pipe or the turbine casing, the upstream end of the first guide portion being upstream in the axial direction of the gas turbine relative to a main flow of combustion gas of the gas turbine;
- and
- a downstream second guide portion that is plate-like and is configured to extend from a downstream end of the first guide portion toward the outside in the radial direction so as to include a second surface intersecting the axial direction of the gas turbine and extending along the circumferential direction of the gas turbine in the state in which the fixed portion is fixed to the pipe or the turbine casing, the downstream end of the first guide portion being downstream in the axial direction of the gas turbine relative to the main flow of combustion gas of the gas turbine.
Dependencies are inferred from the claim text.