Core shroud, in particular for cladding a reactor core in a boil

Details Core shroud, in particular for cladding a reactor core in a boil Core shroud, in particular for cladding a reactor core in a boil

1997-03-14

1998-03-17

Carone, Michael J.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

376287, 376302, G21C 1900

Patent

active

057295816

ABSTRACT:
Core shrouds are conventionally welded together from cylindrical parts and annular flanges, wherein cracks have recently occurred in the region of weld seams in reactors of the boiling-water type. A core shroud, in particular for cladding a reactor core in a boiling-water nuclear reactor and a method for repairing a core shroud, include recesses disposed transversely relative to the circumferentially extending weld seams. The recesses have a middle part which passes through a region that is thermally influenced during welding as well as transverse grooves or widenings located in front of ends of the middle part and lying outside the thermally influenced region. A clamp which is fitted into the recess is disposed approximately flush with a shroud surface and is wedged in one of the transverse grooves.

REFERENCES:
patent: 3356589 (1967-12-01), Grell et al.
patent: 3469865 (1969-09-01), Ellenburg
patent: 3823066 (1974-07-01), Thome
patent: 4410487 (1983-10-01), Tautz et al.
patent: 5392322 (1995-02-01), Whitling et al.
patent: 5521951 (1996-05-01), Charnley et al.
patent: 5623526 (1997-04-01), Wivagg

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