Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1998-04-27
2000-08-22
Freay, Charles G.
Power plants
Combustion products used as motive fluid
Combustion products generator
415175, F02C 300
Patent
active
061053635
ABSTRACT:
A closed-loop cooling scheme for cooling stationary combustion turbine components, such as vanes, ring segments and transitions, is provided. The cooling scheme comprises: (1) an annular coolant inlet chamber, situated between the cylinder and blade ring of a turbine, for housing coolant before being distributed to the turbine components; (2) an annular coolant exhaust chamber, situated between the cylinder and the blade ring and proximate the annular coolant inlet chamber, for collecting coolant exhaust from the turbine components; (3) a coolant inlet conduit for supplying the coolant to said coolant inlet chamber; (4) a coolant exhaust conduit for directing coolant from said coolant exhaust chamber; and (5) a piping arrangement for distributing the coolant to and directing coolant exhaust from the turbine components. In preferred embodiments of the invention, the cooling scheme further comprises static seals for sealing the blade ring to the cylinder and flexible joints for attaching the blade ring to the turbine components.
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Dowman Steven Wayne
Hultgren Kent Goran
Nordlund Raymond Scott
Owen Brian Charles
Smith Ricky Lee
Freay Charles G.
Siemens Westinghouse Power Corporation
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