Gas turbine interstage portion seal device

Details Gas turbine interstage portion seal device Gas turbine interstage portion seal device

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 11/02 (2006.01) F01D 11/12 (2006.01) F02C 7/28 (2006.01) F16J 15/44 (2006.01)

Patent

CA 2244048

In order to realize a seal device of gas turbine interstage portion which is excellent in a sealing ability at the time of regular operation of the gas turbine, a gas turbine interstage portion seal device is constructed by comprising a honeycomb seal (2) of ring shape provided to an inner side of a turbine stationary blade inner ring (1) and a plurality of seal fins (5) of ring shape provided to an outer side of a turbine disc seal arm portion (4). Also, an inner side surface of the honeycomb seal and outer peripheries of the plurality of seal fins, respectively, comprise large diameter ones and small diameter ones and convex and concave portions formed thereby respectively are mated with each other irregularly.

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