STEAM COOLING TYPE GAS TURBINE COMBUSTOR - TOHOKU ELECTRIC POWER CO

Title:

STEAM COOLING TYPE GAS TURBINE COMBUSTOR

Document Type and Number:

WIPO Patent Application WO/1998/036220

Kind Code:

A1

Abstract:

In using a high pressure steam as a cooling medium for a gas turbine combustor, combustor walls exposed to a high temperature combustion gas is constructed such that a sheet having a strength for high temperatures is joined by brazing to those surfaces of a wall plate, on which a plurality of flow passage grooves for a cooling steam are provided, to form steam flow passages, which communicate at one side thereof with a cooling steam supply manifold and at the other side thereof with a steam recovery manifold so that a steam supplied into the steam flow passages from the supply manifold cools the combustor wall surfaces and recovery manifold combustor wall surfaces. Accordingly, it is possible to form cooling passages of adequate strength and inhibit leakage of the steam outside a system.

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Inventors:

IGARASHI KIRYO (JP)
OGOSE AKIO (JP)
AKAGI KOUICHI (JP)
INADA MITSURU (JP)

Application Number:

PCT/JP1998/000552

Publication Date:

August 20, 1998

Filing Date:

February 12, 1998

Export Citation:

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Assignee:

TOHOKU ELECTRIC POWER CO (JP)
MITSUBISHI HEAVY IND LTD (JP)
IGARASHI KIRYO (JP)
OGOSE AKIO (JP)
AKAGI KOUICHI (JP)
INADA MITSURU (JP)

International Classes:

F02C7/141; F02C7/18; F23M5/08; F23R3/00; (IPC1-7): F23R3/42; F02C7/18

Foreign References:

JPH08338633A	1996-12-24
JPS62111131A	1987-05-22
JPH0727335A	1995-01-27
JPH08270950A	1996-10-18
JPH08261463A	1996-10-11

Other References: