Grid structure for supporting fuel rods in a nuclear reactor
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United States of America Patent
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Aug 22, 1995
Grant Date -
N/A
app pub date -
Apr 4, 1994
filing date -
Apr 4, 1994
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Disclosed is a grid structure for supporting fuel rods in a nuclear reactor. The grid structure is formed of a plurality of interconnected thin metal grid straps that are welded or brazed together to provide a structural network of interconnected open grid cells, similar to an 'egg crate divider'. The grid straps are provided at regular intervals, corresponding to the width of a grid cell, with pairs of spaced, substantially horizontal, slotted spring-like projections and a substantially X-shaped spring-like projection vertically intermediate the horizontal projections. The spring-like projections are designed to support and hold the fuel rods within the grid cells under both balanced and unbalanced forces acting on the fuel rod assembly while it is in service, surrounded by coolant in the nuclear reactor.
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