Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Shield or barrier between radiation or heat source and...
Patent
1995-07-21
1997-04-22
Jordan, Charles T.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Shield or barrier between radiation or heat source and...
376390, 376400, 376451, 376260, 376302, G21C 900
Patent
active
056235267
ABSTRACT:
In order to support a shroud against bending, shear, stress and torsion, straps which are preferably formed of the same material as the shroud, are placed in strategic positions with respect to cracks or the like type of weaknesses which have been detected, and fastened in place using a suitable fastening technique. In the preferred embodiments of the invention holes a formed using an EDM technique and bolt units which have an expanding portion are inserted into the holes, torqued and expanded in a manner which fastens the strap to the shroud. Welding and the like type of fastening techniques are not excluded and may used alternatively or in combination with the bolting technique as required.
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Chelliah Meena
Combustion Engineering Inc.
Jordan Charles T.
Kananen Ronald P.
Mulholland John H.
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