Gas turbine offline compressor wash with buffer air from combustor
AssigneeSolar Turbines Incorporated
InventorJohn Frederick Lockyer
Life of this patent
Estimating the term…
Abstract
A system and method for washing a gas turbine engine. The method for washing the gas turbine engine includes coupling a pressurized air supply assembly to an air supply and to a secondary air system, cranking a compressor rotor assembly of the gas turbine engine, supplying pressurized offline buffer air from the air supply to the pressurized air supply assembly, and spraying a cleaner into the compressor.
Claims20
A pressurized air supply assembly for a gas turbine engine, the gas turbine having combustor with an injector port and a secondary air system, the pressurized air supply assembly comprising:
- an air conduit having a first end and a second end;
- a secondary air system pneumatic couple coupled to the first end of the air conduit, the secondary air system pneumatic couple including an adapter configured to attach to a part of the secondary air system;
- and
- a local air supply adapter including a conduit mount and an injector port flange, the conduit mount coupled to the second end of the air conduit, the injector port flange configured to fit and attach to the injector port, the injector port flange forming a cap over the injector port with at least one air passageway passing through the cap and terminating at the conduit mount.
The system of claim 16, wherein the crank includes a starter of the gas turbine engine;
- and
- wherein the secondary air cap includes a bleed vent.
A method for washing a compressor in a gas turbine engine, the method comprising:
- removing an injector from an injector port of the gas turbine engine;
- installing a local air supply adapter to the injector port, the local air supply adapter being part of a pressurized air supply assembly, the gas turbine engine being an air supply;
- coupling the pressurized air supply assembly to a secondary air system of the gas turbine engine;
- cranking a compressor rotor assembly of the gas turbine engine;
- supplying offline buffer air to the secondary air system from the air supply and via the pressurized air supply assembly;
- and
- delivering cleaner to the compressor.
A method for washing a gas turbine engine, the gas turbine engine including a compressor, a combustor, and a turbine, the method comprising:
- removing an injector from an injector port;
- installing a local air supply adapter to the injector port;
- cranking the compressor of the gas turbine engine;
- distributing a cleaner into the compressor;
- and
- supplying compressed air to a secondary air system of the gas turbine engine from the local air supply adapter.
Dependencies are inferred from the claim text.