Title:
A steam valve and a steam turbine
Document Type and Number:
Japanese Patent JP5973085
Kind Code:
B2
Abstract:
A steam valve includes a valve body having a valve seat in a steam channel, a valve stem configured to close the steam channel by coming in contact with the valve seat and to open the steam channel by moving from the valve seat and a guide portion configured to slidably guide the valve stem in a moving direction thereof. The guide portion has a guide body that encloses the valve stem from a radial outer side of the valve stem and a guide bush that is detachably fixed inside the guide body, has an inner surface which abuts and slides on an outer circumferential surface of the valve stem, and is formed of a material having corrosion resistance.
Inventors:
Kawamura Yasuhiko
Application Number:
JP2015545550A
Publication Date:
August 23, 2016
Filing Date:
February 19, 2014
Export Citation:
Assignee:
Mitsubishi Heavy Industries Compressor Co., Ltd.
International Classes:
F01D25/00; F01D17/10; F16K1/32; F16K41/00
Domestic Patent References:
| JP2012087841A | 2012-05-10 | |||
| JPH0893928A | 1996-04-12 | |||
| JPS57188719A | 1982-11-19 | |||
| JPS5982503A | 1984-05-12 | |||
| JP2009174324A | 2009-08-06 |
Attorney, Agent or Firm:
Ryuichiro Mori
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma