Nuclear reactor

Patent · Tue Dec 29 04:00:00 EST 1987

OSTI ID:5317283

Veronesi, L; Garner, D C

A nuclear reactor is described including a vessel, a nuclear core within the vessel and control-rod assemblies within the vessel. The control-rod assemblies include vertical control-rod guide means in a plenum vertically above the core. The control-rod assemblies also include control-rod clusters. Each cluster includes control rods suspended from a spider. The cluster is movable to move its control rods between the guide means and the core, and a drive rod connected to each cluster for so moving each cluster. The vessel has at least an inlet nozzle for supplying a coolant through the core, the inflowing coolant after passing through the core flowing predominantly through the guide means generally vertically, a calandria in the path of the outflowing coolant, from the guide means. The calandria includes hollow members, an upper support for the members perforate to the opening within the members and a lower support. The calandria is mounted with its lower support above and on the guide means and with the drive rods only and not the control rods passing through the hollow members. The lower support is perforate to the coolant flowing out of the guide means. The vessel has at least an outlet nozzle with a generally horizontal coolant outflow channel. The outflow channel is substantially at the level of the calandria so that the coolant flowing into the calandria flows generally transversely over the outer surfaces of the hollow members and out through the outflow channel.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA
• Patent Number(s): US 4716013
• OSTI ID: 5317283
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200 -- Nuclear Reactor Technology-- Components & Accessories
220400* -- Nuclear Reactor Technology-- Control Systems
CONTAINERS
CONTROL ELEMENTS
COOLANTS
COOLING SYSTEMS
DESIGN
ENERGY SYSTEMS
FLUID FLOW
FLUID MECHANICS
HYDRODYNAMICS
MECHANICS
OPERATION
POWER REACTORS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR CORES
REACTOR OPERATION
REACTOR VESSELS
REACTORS