Title:
ガスタービンのシュラウド構造
Document Type and Number:
Japanese Patent JP5356345
Kind Code:
B2
Abstract:
There is provided a shroud structure for gas turbines capable of suppressing a drop in the amount of cooling air for cooling the inner shroud 32, 42, 52, 65, 67 by reducing the amount of cooling air leakage that occurs along the cooling air path when feeding cooling air from the one-piece outer shroud 1, 51 to the inner shroud 32, 42, 52, 65, 67 of the gas turbine and ensure more reliable cooling of the inner shroud 32, 42, 52, 65, 67. The gas turbine shroud structure contains a one-piece outer shroud 1, 51, and an inner shroud 32, 42, 52, 65, 67 retained on the inner circumferential side of the outer shroud 1, 51 in a structure divided into multiple inner shrouds along the periphery. An inner seal plate groove 81, 82; 83; 84, 85; 88 is formed on the outer circumference of the hook 33, 34; 43, 44; 53, 54 formed on the inner shroud 32, 42, 52, 65, 67, a seal plate 35, 36; 46; 55, 56; 61, 62; 71, 72, 73, 74 is inserted in the inner seal plate groove 81, 82; 83; 84, 85; 88 and the seal plate 35, 36; 46; 55, 56; 61, 62; 71, 72, 73, 74 is mounted so that a section of the seal plate protrudes in the gap between the hook mechanism of the outer shroud and the inner shroud.
Inventors:
Akiyama Tomb
Yasuo Takahashi
Tetsuro Morisaki
Yasuhiro Horiuchi
Yasuo Takahashi
Tetsuro Morisaki
Yasuhiro Horiuchi
Application Number:
JP2010216463A
Publication Date:
December 04, 2013
Filing Date:
September 28, 2010
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F02C7/18; F01D11/00; F01D25/00; F02C7/28
Domestic Patent References:
| JP2010065698A | ||||
| JP2007077987A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation
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