Title:
VALVE DRIVE SYSTEM AND EMERGENCY CONDENSATE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/166325
Kind Code:
A1
Abstract:
The purpose of this invention is to enable a valve to be appropriately driven in a valve drive system. To achieve this purpose, a valve drive system (S1) is provided with a gas-actuated valve (71) that forms a flow channel for a fluid (F1) when a gas (G1) having at least a designated pressure is supplied to a first pipe (106), first gas supply sources (42, 44, 50, 60) that cause the gas (G1) having at least a designated pressure to be generated, a rupture disc (30) that forms a channel that supplies gas (G1) flowing in from the first gas supply sources (42, 44, 50, 60) to a second pipe (104) when broken, a switching valve (21) that allows continuity between the first pipe (106) and the second pipe (104) when the gas (G1) is supplied to the second pipe (104) from the first gas supply sources (42, 44, 50, 60), and a breakage operation part (23) that breaks the rupture disc (30) when the pressure of the fluid (F1) exceeds a designated pressure.
Inventors:
TSUCHIHIRA HIROKI (JP)
KIYOTOKI YOSHIHISA (JP)
HIRASAWA DAISUKE (JP)
HIRANO SEI (JP)
KAWAI HIROKI (JP)
KIYOTOKI YOSHIHISA (JP)
HIRASAWA DAISUKE (JP)
HIRANO SEI (JP)
KAWAI HIROKI (JP)
Application Number:
PCT/JP2020/039857
Publication Date:
August 26, 2021
Filing Date:
October 23, 2020
Export Citation:
Assignee:
HITACHI GE NUCLEAR ENERGY LTD (JP)
International Classes:
F15B11/06; F16K17/40; G21C15/18
Foreign References:
| JP2015000721A | 2015-01-05 | |||
| JP2012230057A | 2012-11-22 | |||
| JPH0545489A | 1993-02-23 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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