Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within... – Fuel component
Patent
1987-12-31
1989-04-25
Kyle, Deborah L.
Induced nuclear reactions: processes, systems, and elements
Handling of fission reactor component structure within...
Fuel component
72476, 72702, 140147, G21C 1900, G21C 1926
Patent
active
048246328
ABSTRACT:
A straightening device (16) for bent fuel assembly alignment pins (12) in an upper core plate (10) comprises elongated mast (22) having an upper and lower portion, bail (25) secured to the upper portion and cross member (28) secured to the lower portion. At one end of the cross member (28) is attached pin straightening assembly (19), the other end having counterweight (31) to assure a horizontal orientation of the cross member (28). Pin straightening assembly (19) is further comprised of housing (37) having wedge-shaped adjustable shim (61) connected to its top surface, the housing (37) secured to the cross member (28) by baseplate (34). Four axially compressible and laterally deformable compression springs (41) are connected between baseplate (34) and housing (37) to provide angular and translational compliance for housing (37). Housing (37) has two vertical holes disposed therein, first hole (50) adapted to receive hardened die insert (54) having bore (55 ) with frusto-conical opening (56) for receiving bent pin (12), and second hole (51) for receiving another pin (14). Connected to base plate (34) opposite housing (37) is hydraulic ram (44) for moving housing (37) into full planar contact with bottom surface (47) of upper core plate (10) to effectuate the straightening of bent pin (12).
REFERENCES:
patent: 3542087 (1970-11-01), Fegley
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patent: 3903937 (1975-09-01), Drummond
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patent: 4397341 (1983-08-01), Kent
patent: 4511976 (1985-04-01), Graf
patent: 4590671 (1986-05-01), Havoic-Conroy
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patent: 4627169 (1976-12-01), Zafred et al.
patent: 4678625 (1987-07-01), Wilson
patent: 4688416 (1987-08-01), Shallenberger et al.
patent: 4690593 (1987-09-01), Nee et al.
patent: 4696784 (1987-09-01), Tolino et al.
Meuschke Robert E.
Shields Edward P.
Kyle Deborah L.
Panian Michael G.
Wasil Daniel
Westinghouse Electric Corp.
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