Reconstituting a nuclear reactor fuel assembly

Details Reconstituting a nuclear reactor fuel assembly Reconstituting a nuclear reactor fuel assembly

G - Physics

21

C

359/37, 359/73

G21C 3/02 (2006.01) G21C 3/326 (2006.01) G21C 3/33 (2006.01) G21C 19/19 (2006.01) G21C 19/26 (2006.01)

Patent

CA 1210534

14 49,189 ABSTRACT OF THE DISCLOSURE A method for reconstituting a nuclear reactor fuel assembly having its top nozzle adapter plate welded to its control rod guide thimble sleeves. Circumferen- tially cut the sleeves from the adapter plate below the weld. Separate the top nozzle from the cut sleeve 5. Obtain a modified top nozzle refashioned with a groove in its adapter plate control rod passageways. Insert the cut sleeves in the passageways of the modified top nozzle. Circumferentially bulge the sleeves into the grooves. A system for attachment of the top nozzle to the sleeves employing the above-described circumferential bulge and groove attachment.

436063

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