ROTARY MACHINE AND SEAL MEMBER - MITSUBISHI HITACHI POWER SYS

Title:

ROTARY MACHINE AND SEAL MEMBER

Document Type and Number:

WIPO Patent Application WO/2020/031625

Kind Code:

A1

Abstract:

The present invention of a rotary machine and a seal member comprises: a casing (11); a rotor (12) which is rotatably held in the casing (11); a stationary blade (13) which is fixed to the inner periphery of the casing (11); a moving blade (14) which is fixed to the outer periphery of the rotor (12); and a seal device (15) which is positioned between the inner periphery of the casing (11) and the tip of the moving blade (14), wherein: a blade installation groove (31) is provided to the inner periphery of the casing (11); a caulking groove (32) is provided adjacent to the blade installation groove (31); the base end of the stationary blade (13) is mounted in the blade installation groove (31); the stationary blade (13) is fixed to the inner periphery of the casing (11) by engaging a caulking member (33) with the caulking groove (32) and the blade root (13a) of the stationary blade (13); a seal ring (41) is mounted on the inner periphery of the casing (11) as the seal device (15); and at least part of the caulking groove (32) is covered by the seal ring (41).

Inventors:

UETA YASUHIKO (JP)
FUKUSHIMA HISATAKA (JP)
TANAKA KENTARO (JP)

Application Number:

PCT/JP2019/027905

Publication Date:

February 13, 2020

Filing Date:

July 16, 2019

Export Citation:

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Assignee:

MITSUBISHI HITACHI POWER SYS (JP)

International Classes:

F01D11/08; F01D9/02; F01D25/00; F16J15/447

Foreign References:

JP2017160827A	2017-09-14
JP2013194519A	2013-09-30
US5632598A	1997-05-27
JPH0227102A	1990-01-29
JP2016138483A	2016-08-04