Reactor vessel lower internals temporary support

Patent · Tue Aug 22 04:00:00 EDT 1989

OSTI ID:5319499

Matusz, J M; Golick, L R; Matusz, W

This patent describes in a nuclear reactor pressure vessel having a vessel flange on its upper portion. The vessel flange including a top surface, a plurality of circumferentially spaced threaded openings and a radially inwardly projecting internals support ledge, a lower internals assembly having a plurality of radially oriented keys on a lower end thereof, means for temporarily supporting the lower internals assembly above the reactor vessel comprising a plurality of support structures secured to the vessel flange. Each of the support structures comprised of: a support bracket secured to the top surface of the vessel flange; an arm having a top and bottom surface. The arm pivotally secured near one end to the support bracket so as to project radially inward therefrom, the top surface of the arm adapted to engage the lower internals assembly near the lower end thereof; means for pivotally rotating the arm with respect to the support bracket; an arcuately shaped foot depending from the bottom surface of the arm near the end opposite the one end. The foot adapted to engage the internals support ledge; and alignment means on the top surface of the arm adapted to engage the keys for aligning the lower internals assembly with respect to the support means.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA
• Patent Number(s): US 4859409
• Application Number: PPN: US 7-199416A
• OSTI ID: 5319499
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
CONTAINERS
DESIGN
FLANGES
MECHANICAL STRUCTURES
PRESSURE VESSELS
REACTOR VESSELS
SUPPORTS