Title:
蒸気弁
Document Type and Number:
Japanese Patent JP6382556
Kind Code:
B2
Abstract:
A steam valve 10 of an embodiment includes: a valve element 32 of a steam control valve 30, the valve element 32 being provided to be movable in an up and down direction; a valve element 42 of a main stop valve 40, the valve element 42 being provided under the valve element 32 coaxially with the valve element 32 to be movable in the up and down direction; a valve seat 60 with which the valve element 32 and the valve element 42 come into and out of contact; and a guide tube 43 slidably supporting a valve rod 41 including the valve element 42, and having a flange portion 43a at a bottom side in a casing 20. The steam valve 10 further includes: the casing 20 housing the valve element 32, the valve element 42, the valve seat 60, and the guide tube 43; a drain discharge hole 23 formed at a bottom side of the casing 20; a drain pipe 70 provided with a shutoff valve 71 and communicating with the drain discharge hole 23; and a flow direction changing part 80 which changes a direction in which steam having passed between the valve element 32 and the valve seat 60 and flowing along the guide tube 43 flows toward the drain discharge hole 23.
Inventors:
Yuichi Nakamura
Tomoo Ofuji
Tsutomu Shioyama
Takashi Iguchi
Tomoo Ofuji
Tsutomu Shioyama
Takashi Iguchi
Application Number:
JP2014079781A
Publication Date:
August 29, 2018
Filing Date:
April 08, 2014
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Energy Systems Co., Ltd.
Toshiba Energy Systems Co., Ltd.
International Classes:
F01D17/10; F16K1/44; F16K51/00
Domestic Patent References:
| JP60014207U | ||||
| JP2009085201A | ||||
| JP2012202249A | ||||
| JP2006046110A | ||||
| JP58122304A | ||||
| JP2000018005A |
Attorney, Agent or Firm:
Patent Business Corporation Sakura International Patent Office