F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
F02C 7/12 (2006.01) F01D 5/18 (2006.01) F01D 25/12 (2006.01)
Patent
CA 2256597
Provided is steam cooled type gas turbine comprising steam chamber unit formed in one unit having compact structure by which steam as cooling medium is appropriately supplied, used for cooling and recovered. The steam cooled type gas turbine comprises steam chamber unit (1) formed in one unit having steam supply passage (31) for leading cooling steam; steam connection passage (32) for leading the cooling steam which has cooled front stage (5) to subsequent stage (16); and steam recovery passage (33) for recovering the cooling steam which has cooled plurality of said stages as well as having heat insulating structural member (8) for insulation of heat from moving blade (9); and stationary blade supporting portion (7), both provided in inner circumferential surface portion of the steam chamber unit. Supply and recovery of steam to and from stationary blade and cooling by steam of stationary blade can be done by compact structure having single consecutive cooling steam passage so that stationary blade can be cooled efficiently.
Endo Tadayoshi
Sakon Toshio
Mitsubishi Heavy Industries Ltd.
Riches Mckenzie & Herbert Llp
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