Title:
COMBUSTOR TUBE, COMBUSTOR, AND GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2017/047516
Kind Code:
A1
Abstract:
The objective is to enable the portion of a combustor tube where the temperature rises to be cooled efficiently, and to improve the reliability of a combustor tube without reducing the efficiency of a gas turbine. Therefore, this combustor tube has an inlet and an outlet, is coupled to a stator vane shroud wherein stator vanes are arranged, and has an inside tube and an outside tube. The internal space of the inside tube serves as a flow path through which combustion gas passes, and first cooling paths through which a cooling medium passes are formed in the wall surfaces forming the flow path. The outside tube is arranged at the outer periphery of the inside tube, and is affixed to the inside tube. Second cooling flow paths, wherein a cooling medium passes between the outer peripheral surface of the inside tube and the inner peripheral surface of the outside tube, are formed connected to the first cooling flow paths near the outlet of the combustor tube. As for the outside tube, cooling promotion structures are formed in the second cooling flow paths, near the first cooling flow paths.
Inventors:
KATO SHIN (JP)
KINOSHITA TAIKI (JP)
SATO SHINGO (JP)
KINOSHITA TAIKI (JP)
SATO SHINGO (JP)
Application Number:
PCT/JP2016/076625
Publication Date:
March 23, 2017
Filing Date:
September 09, 2016
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F02C7/18; F01D9/00; F01D25/00; F02C7/00; F23R3/42
Foreign References:
| JP2008274774A | 2008-11-13 | |||
| JP2012077660A | 2012-04-19 | |||
| JP2014098352A | 2014-05-29 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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