Brian Thomas Owen

US Patent:

61053635, Aug 22, 2000

Filed:

Apr 27, 1998

Appl. No.:

9/067593

Inventors:

Kent Goran Hultgren - Winter Park FL
Brian Charles Owen - Orlando FL
Steven Wayne Dowman - Orlando FL
Raymond Scott Nordlund - Orlando FL
Ricky Lee Smith - Oviedo FL

Assignee:

Siemens Westinghouse Power Corporation - Orlando FL

International Classification:

F02C 300

US Classification:

60 3975

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.