STEAM TURBINE FACILITY - MITSUBISHI HEAVY IND LTD

Title:

STEAM TURBINE FACILITY

Document Type and Number:

WIPO Patent Application WO/2014/006778

Kind Code:

A1

Abstract:

In order to provide a steam turbine facility wherein appropriate sealing can be provided between members formed of a Ni-based alloy cast material at a steam temperature of 650°C or higher, the parent material of both a first member (32) and a second member (34) in this steam turbine facility (1) is formed of a cast material comprising a Ni-based alloy and/or austenitic steel and/or high-chrome steel, with the first member and second member forming a space through which steam with a temperature of 650°C or higher passes. A metal gasket (60, 80) is provided between the first member (32) and the second member (34). The metal gasket (60, 80) is in line contact with the first member (32) and the second member (34) at multiple locations. At least the portions of the first member (32) and the second member (34) which are in line contact with the metal gasket (60, 80) are provided with a first high-hardness layer (56) having a higher hardness than the parent material.

Inventors:

NISHIMOTO SHIN (JP)
HAMADA KATSUHISA (JP)
TANAKA YOSHINORI (JP)
SHINOHARA TANEHIRO (JP)
AKAMATSU TETSURO (JP)

Application Number:

PCT/JP2012/082846

Publication Date:

January 09, 2014

Filing Date:

December 18, 2012

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

F01D25/24; F01D25/00; F16J15/08; F16K27/00

Foreign References:

JP2010043590A	2010-02-25
JPH04203205A	1992-07-23
JP2005291496A	2005-10-20
JP2003120327A	2003-04-23
JP2010144707A	2010-07-01
JPH09317894A	1997-12-12
JP2010043590A	2010-02-25

Other References: