Spacer for nuclear reactor fuel assembly

Details Spacer for nuclear reactor fuel assembly Spacer for nuclear reactor fuel assembly

1993-02-16

1995-04-04

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376439, 376443, G21C 334

Patent

active

054043832

ABSTRACT:
A spacer for retaining a number of elongated fuel rods into a bundle to be placed in a nuclear reactor of BWR or PWR type. The bundle is intended to be traversed in the longitudinal direction by a coolant. The spacer includes a number of cells for the fuel rods surrounded by an outer frame which is formed from a first band standing on edge. This band has possibly been extended by a skirt arranged on the upstream side of the spacer. The band or skirt edge of the spacer located on the upstream side thereof is provided with guiding tabs which are formed from plate flaps which lie in planes which extend in parallel with the flow direction of the coolant and one side edge of which slantingly extends from the first band or skirt edge in an upstream direction towards the center of the spacer.

REFERENCES:
patent: 4426355 (1984-01-01), Burger
patent: 4726926 (1988-02-01), Patterson et al.
patent: 4758403 (1988-07-01), Noailly
patent: 4885127 (1989-12-01), Yokoyama
patent: 4999153 (1991-03-01), Johansson et al.
patent: 5080858 (1992-01-01), Nylvnd
patent: 5143691 (1992-09-01), Lippert et al.

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