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US 11,898,753 B2Granted
System and method for sweeping leaked fuel in gas turbine system
AssigneeGE Infrastructure Technology LLC
InventorsShreekrishna Rao, Mohan Krishna Bobba, Lucas J. Stoia, Homayoon Feiz
Life of this patent
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Abstract
A system is provided with a fuel sweep system configured to couple to a flow sleeve of a combustor along a first fuel conduit. The flow sleeve is configured to be disposed about a liner of the combustor, and the first fuel conduit is configured to extend along the flow sleeve in a compressor discharge chamber disposed about the flow sleeve. The fuel sweep system includes a first fuel sweep louver adjacent a first fuel sweep opening defined through the flow sleeve.
Claims19
A system, comprising:
- a combustor, comprising:
- a combustion chamber;
- a liner disposed about the combustion chamber;
- a flow sleeve disposed about the liner;
- and
- a passage disposed between the liner and the flow sleeve, wherein the passage is in fluid communication with the combustion chamber;
- a compressor discharge chamber disposed about the flow sleeve;
- a first fuel conduit disposed in the compressor discharge chamber along the flow sleeve, wherein the first fuel conduit is offset from an exterior surface of the flow sleeve in a radial direction relative to a longitudinal axis of the combustor, and the first fuel conduit is configured to couple to and extend between a fuel supply and a first fuel nozzle;
- and
- a fuel sweep system configured to sweep a leaked fuel from the first fuel conduit into the passage, wherein the fuel sweep system comprises a first fuel sweep opening in the flow sleeve and a first fuel sweep louver coupled to the flow sleeve adjacent the first fuel sweep opening, the first fuel sweep opening and the first fuel sweep louver are disposed radially inward relative to the first fuel conduit, and the first fuel conduit overlaps with the first fuel sweep opening and the first fuel sweep louver along the flow sleeve in an axial direction and a circumferential direction relative to the longitudinal axis of the combustor;
- wherein the first fuel conduit is centered over the first fuel sweep opening.
8 more elements
A system, comprising:
- a fuel sweep system configured to couple to a flow sleeve of a combustor along a first fuel conduit, wherein the flow sleeve is configured to be disposed about a liner of the combustor to define a passage, the first fuel conduit is configured to extend along the flow sleeve in a compressor discharge chamber disposed about the flow sleeve, the first fuel conduit is offset from an exterior surface of the flow sleeve in a radial direction relative to a longitudinal axis of the combustor, wherein the fuel sweep system comprises a first fuel sweep louver adjacent a first fuel sweep opening, the first fuel sweep opening and the first fuel sweep louver overlap the first fuel conduit in a circumferential direction and an axial direction relative to the longitudinal axis of the combustor, the first fuel conduit is centered over the first fuel sweep opening, and the fuel sweep system is configured to sweep a leaked fuel from the first fuel conduit into the passage.
A method, comprising:
- directing a leaked fuel from a first fuel conduit through a first fuel sweep opening of a fuel sweep system into a passage between a liner and a flow sleeve of a combustor, wherein the liner is disposed about a combustion chamber, the flow sleeve is disposed about the liner, the passage is in fluid communication with the combustion chamber, a compressor discharge chamber is disposed about the flow sleeve, the first fuel conduit is disposed in the compressor discharge chamber along the flow sleeve, the first fuel conduit is offset from an exterior surface of the flow sleeve in a radial direction relative to a longitudinal axis of the combustor, the first fuel sweep opening is disposed in the flow sleeve, and the first fuel conduit is centered over the first fuel sweep opening;
- and
- directing the leaked fuel from the first fuel sweep opening in a flow direction along the passage via a first fuel sweep louver of the fuel sweep system, wherein the first fuel sweep louver is coupled to the flow sleeve adjacent the first fuel sweep opening, the first fuel sweep opening and the first fuel sweep louver are disposed radially inward relative to the first fuel conduit, and the first fuel sweep opening and the first fuel sweep louver overlap the first fuel conduit in a circumferential direction and an axial direction relative to the longitudinal axis of the combustor.
Dependencies are inferred from the claim text.