Fluid shut-down system for a nuclear reactor
A nuclear reactor shut-down system is described which comprises a fluidic vortex valve for releasably maintaining a liquid neutron poison outside of the reactor core, the poison being contained by a reservoir and biased by pressure for flow into poison tubes within the reactor. The upper ends of the poison tubes communicate with the supply port of the vortex valve. A continuous gas flow into the control port maintains normal controlled operation. Shut-down is effected by interruption of the control input. One embodiment comprises three groups of poison tubes and one vortex valve associated with each group wherein shut-down is effected by poison release in two out of the three groups. Preferably, each vortex valve comprises three control ports which operate on a ''voting'' or two-out-of-three basis. (Official Gazette)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-33-004888
- Assignee:
- to Atomic Energy of Canada Ltd.
- Patent Number(s):
- US 3900365
- OSTI ID:
- 4150184
- Resource Relation:
- Patent File Date: 1972 Oct 10; Other Information: G21c7/22. Orig. Receipt Date: 30-JUN-76
- Country of Publication:
- United States
- Language:
- English
Similar Records
Wire-line controlled down-hole shut-in tool for wells
SHUT-DOWN DEVICE FOR NUCLEAR REACTORS