Plates having cooling channels, and method for welding the plates and increasing a dimension of the cooling channels adjacent the welded section
View Patent ↗A plate-like-object manufacturing method, plate-like objects, a gas-turbine combustor, and a gas turbine, in which degradation in the cooling performance can be suppressed, the time required for manufacturing a gas-turbine combustor can be shortened, and deterioration of the working environment can be prevented are provided. A plate-like-object manufacturing method includes a step of forming a plate-like object by stacking a plurality of plates and arranging a plurality of channels, through which a cooling medium flows, side-by-side between the plurality of plates; and a step of arranging a plurality of the plate-like objects side-by-side in a direction in which the channels are arranged, butting the plurality of plate-like objects against each other, and performing welding at an abutment section. The channels adjacent to the abutment section extend along the abutment section and have a greater dimension in the direction in which the channels are arranged, as compared with that of other channels.
1. A plate-like-object manufacturing method comprising:
a step of forming a plate-like object by stacking a plurality of plates and arranging a plurality of channels, through which a cooling medium flows, side-by-side between the plurality of plates; and
a step of arranging a plurality of the plate-like objects side-by-side in a direction in which the channels are arranged, butting the plurality of plate-like objects against each other, and performing welding at an abutment section, the plurality of the plate-like objects forming a portion of a combustor,
wherein the channels adjacent to the abutment section, which are arranged with a predetermined interval from the welding in the direction in which the channels are arranged, extend along the abutment section and have a greater dimension in the direction in which the channels are arranged, as compared with that of other channels.
2. The plate-like-object manufacturing method according to claim 1 , wherein the step of forming the plate-like object comprises:
a step of forming a plurality of grooves side-by-side in one surface of one plate; and
a step of forming the plate-like object and the plurality of channels by joining another plate to the one surface of the one plate.
3. The plate-like-object manufacturing method according to claim 1 , wherein the step of forming the plate-like object comprises:
a step of forming a plurality of slits side-by-side in a first plate; and
a step of forming the plate-like object and the plurality of channels by joining second plates to one surface and another surface of the first plate.
4. A gas-turbine combustor comprising:
a nozzle unit that emits fuel; and
a cylindrical object that mixes and combusts air and the emitted fuel therein,
wherein the cylindrical object comprises the plate-like objects manufactured by the plate-like-object manufacturing method according to claim 1 .
5. A gas turbine comprising:
a compressor that compresses air;
the gas-turbine combustor according to claim 4 that produces combustion gas by mixing and combusting compressed air supplied from the compressor and fuel supplied from the outside;
a turbine unit that converts a portion of energy included in the combustion gas into a rotational driving force; and
a rotating shaft that transmits the rotational driving force from the turbine unit to the compressor.
6. Plate-like objects comprising:
one plate-like object having a plurality of channels arranged side-by-side therein;
another plate-like object having a plurality of channels arranged side-by-side therein, the plurality of channels being arranged side-by-side in one direction relative to the one plate-like object; and
a welded section at which the one plate-like object and the other plate-like object are joined together,
wherein the channels adjacent to the welded section for the one plate-like object and the other plate-like object, which are arranged with a predetermined interval from the welded section in the direction in which the channels are arranged, and extending along the welded section have a greater dimension in the direction in which the channels are arranged, as compared with that of other channels, and
wherein the one plate-like object and the another plate like object form a portion of a combustor.
7. A gas-turbine combustor comprising:
a nozzle unit that emits fuel; and
a cylindrical object that mixes and combusts air and the emitted fuel therein, wherein the cylindrical object comprises the plate-like objects according to claim 4 .
8. A gas turbine comprising:
a compressor that compresses air;
the gas-turbine combustor according to claim 7 that produces combustion gas by mixing and combusting compressed air supplied from the compressor and fuel supplied from the outside;
a turbine unit that converts a portion of energy included in the combustion gas into a rotational driving force; and
a rotating shaft that transmits the rotational driving force from the turbine unit to the compressor.