Induced nuclear reactions: processes – systems – and elements – Reactor structures – With particular control rod guide structure
Patent
1986-04-04
1988-07-26
Terapane, John F.
Induced nuclear reactions: processes, systems, and elements
Reactor structures
With particular control rod guide structure
376377, 376399, G21C 108, G21C 1500
Patent
active
047599049
ABSTRACT:
A calandria assembly is received within the pressure vessel of a nuclear reactor system, at an elevation corresponding to the level of the outlet nozzles of the vessel, and receives pressurized coolant traveling in an axial flow direction within the vessel and turns same to a radial direction for exit through the outlet nozzles. Hollow tubes mounted in parallel relationship at opposite ends to first and second plates of the calandria in conjunction with a cylindrical skirt of cylindrical configuration joining the first and second plates of the calandria, present a redundant structure introducing the potential of thermal stresses, which are limited by selection of the pattern of flow holes in the lower plate and the provision of flexible annular weld joints of J-shaped configuration between the lower ends of the calandria tubes and the lower, second calandria plate.
REFERENCES:
patent: 3371016 (1968-02-01), Tower et al.
patent: 3816245 (1974-06-01), Bevilacqua
patent: 3849257 (1974-11-01), Bevilacqua
patent: 4092216 (1978-05-01), Aubert
Gillett James E.
Goossen John E.
Abeles D. C.
Maples John S.
Terapane John F.
Westinghouse Electric Corp.
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