| 发明名称 |
ALTERNATIVE AIR SUPPLY AND EXHAUST PORT FOR AIR-OPERATED VALVE |
| 摘要 |
The present invention is directed to remote operation of an operation valve such as an air operated valve even at the time of power loss. A gas supply apparatus of the present invention includes: an operation valve mounted in some midpoint of a piping for passing at least gas in a plant and operating a valve body by the gas flowing in the piping; an solenoid valve mounted in some midpoint of the piping and allowing/stopping flow of the gas to the operation valve; and a gas supply source for supplying gas to the solenoid valve. A switching valve for switching between exhaust from the solenoid valve and gas supply to the solenoid valve is mounted in an exhaust line of the solenoid valve and, at the time of power loss, the switching valve is switched to connection to the gas supply source for supplying gas to the solenoid valve. |
| 申请公布号 |
US2014254738(A1) |
申请公布日期 |
2014.09.11 |
| 申请号 |
US201414183995 |
申请日期 |
2014.02.19 |
| 申请人 |
HITACHI-GE NUCLEAR ENERGY, LTD. |
发明人 |
KUBOTA Ryo;ONODERA Kenji;KIYOTOKI Yoshihisa |
| 分类号 |
G21C9/004 |
主分类号 |
G21C9/004 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A gas supply apparatus comprising:
an operation valve mounted in some midpoint of a piping for passing at least gas in a plant and operating a valve body by the gas flowing in the piping; an solenoid valve mounted in some midpoint of the piping and allowing/stopping flow of the gas to the operation valve; and a gas supply source for supplying gas to the solenoid valve, wherein a switching valve for switching between exhaust from the solenoid valve and gas supply to the solenoid valve is mounted in an exhaust line of the solenoid valve and, at the time of power loss, the switching valve is switched to connection to the gas supply source for supplying gas to the solenoid valve. |
| 地址 |
Ibaraki JP |
