US 11,767,977 B2Granted

Combustor and gas turbine

AssigneeMitsubishi Heavy Industries, Ltd.

InventorsKozo Aoki, Toshihiko Saito

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Abstract

A combustor includes an outer cylinder, a combustor liner, a plurality of main nozzles, an air flow channel part, and a plurality of water injection parts. The air flow channel part sends air introduced from an outside to between an inner peripheral surface of the outer cylinder and an outer peripheral surface of the combustor liner into the combustor liner. The plurality of water injection parts are provided on the inner peripheral surface of the outer cylinder at intervals in a circumferential direction around a central axis. The plurality of water injection parts inject water into the air flowing through the air flow channel part. The water injection part includes a first nozzle and a second nozzle. The first nozzle injects water to a first side in the circumferential direction. The second nozzle injects water to a second side in the circumferential direction.

Claims8

Dependent claims

A combustor comprising:

a tubular outer cylinder extending in an axial direction;
a tubular-shaped combustor liner extending in the axial direction and that is provided on a radially inner side of the tubular outer cylinder;
a plurality of fuel nozzles that are provided inside the tubular-shaped combustor liner and configured to inject fuel;
an air flow channel part that is configured to send air, which is introduced from an outside to between an inner peripheral surface of the tubular outer cylinder and an outer peripheral surface of the tubular-shaped combustor liner, into the tubular-shaped combustor liner;
and
a plurality of water injection parts that are provided on the inner peripheral surface of the tubular outer cylinder at intervals in a circumferential direction about an axis and is configured to inject water toward the radially inner side of the tubular outer cylinder,
wherein each of the plurality of water injection parts includes:
a first nozzle that is configured to inject water to a first side in the circumferential direction;
and
a second nozzle that is configured to inject water to a second side in the circumferential direction.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/432,240Filed 16 Mar 2020
Priority: JP 2019-0728295 Apr 2019
Published: US 2022/0186929 A116 Jun 2022
Granted: 26 Sep 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

F23R 3/08
Arrangement of apertures along the flame tube: between annular flame tube sections, e.g. flame tubes with telescopic sections
F02C 3/30
Using a special fuel, oxidant, or dilution fluid to generate the combustion products: adding water, steam or other fluids for influencing…
F02C 7/22
Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for…:…
F02C 9/40
Control of fuel supply: specially adapted to the use of a special fuel or a plurality of fuels