Control rod and/or instrument tree assembly. [LMFBR]

Patent · Tue Aug 30 00:00:00 EDT 1977

OSTI ID:5310412

Noyes, R C; Dupen, C F.G.; Barrus, D M; Siegel, E A

Disclosed is an improved core servicing apparatus for a nuclear reactor having a vessel, a head for the vessel, one or more penetration openings in the head and a core within the vessel of the type having an array of fuel assemblies and including apertures in the array for neutron absorbers. The servicing apparatus includes a support column adapted to be supported by and depend from the head in registry with a penetration opening; a plurality of core servicing elements which may include neutron absorber actuating means and/or instrument packages are supported by the support column; and means are provided for laterally displacing at least some of the servicing elements relative to the support column between a laterally compact and a laterally expanded configuration. In one embodiment, instruments may be located at the lower end of long resilient cables and are longitudinally movable within and beyond guide channels supported by the support column. The guide channels are directed outward at their lower ends to direct a descending instrument and cable outwardly. 9 claims, 18 figures.

• Assignee: Combustion Engineering, Inc.
• Patent Number(s): US 4045283
• Application Number: TRN: 78-001524
• OSTI ID: 5310412
• Resource Relation: Patent File Date: Filed date 30 Dec 1974
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
CONTROL ROD DRIVES
DESIGN
LMFBR TYPE REACTORS
REMOTE HANDLING
BREEDER REACTORS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
LIQUID METAL COOLED REACTORS
REACTOR COMPONENTS
REACTORS
220400* - Nuclear Reactor Technology- Control Systems
210500 - Power Reactors
Breeding