Title:
AXIAL-FLOW TURBINE AND POWER GENERATION PLANT
Document Type and Number:
WIPO Patent Application WO/2016/142982
Kind Code:
A1
Abstract:
An axial-flow turbine (10) according to an embodiment is provided with: a plurality of heat shield plates (21) that surrounds a turbine rotor (12) via cooling spaces (S1, S2); and a leg part (40) that supports the heat shield plates (21) on the turbine rotor (12) and partitions the cooling spaces (S1, S2) into a first cooling space (S1) and a second cooling space (S2). The leg part (40) has a leg body part (41) connected to the heat shield plates (21) and a leg locking part (42) that protrudes from the leg body part (41) in a direction along a rotation axis line of the turbine rotor (12) to lock the leg body part (41) onto the turbine rotor (12). A seal part (50) suppresses the flow of a cooling medium from the first cooling space (S1) to the second cooling space (S2) via a gap between an internal circumferential surface (44) of the leg locking part (42) and a bottom surface (32) that defines an insertion groove (30).
Inventors:
OKAMURA NAOYUKI (JP)
MAEDA HIDEYUKI (JP)
SEKINE SATORU (JP)
MAEDA HIDEYUKI (JP)
SEKINE SATORU (JP)
Application Number:
PCT/JP2015/056613
Publication Date:
September 15, 2016
Filing Date:
March 06, 2015
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
F01D25/12; F01D5/08; F01D11/02
Foreign References:
| JP2014020320A | 2014-02-03 | |||
| JP2011089438A | 2011-05-06 | |||
| JP2014020331A | 2014-02-03 | |||
| JP2005538284A | 2005-12-15 | |||
| DE1601574A1 | 1970-11-26 |
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
Katsunuma Hirohito (JP)
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