Induced nuclear reactions: processes – systems – and elements – Reactor structures – Orifice or fluid control at inlet or outlet of coolant channels
Patent
1991-09-20
1993-10-19
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Reactor structures
Orifice or fluid control at inlet or outlet of coolant channels
376443, 376444, 376287, G21C 104
Patent
active
052552977
ABSTRACT:
An improved lower end fitting 10 (L.E.F.) having a bell mouth multistage type of flow jet diffuser 30 with stages 31, 31' decreases pressure drop 15-20% over a single stage bell mouth diffuser and more evenly distributes flow and adds strength. It includes neutron thimble flux impingement shield 50 of instrument and/or cable. Each diffuser stage 31, 31' is S.S., of circular cross-sect. and parabolic to optimize diffusion. The multistage shape is based on lower core plate 20 flow hole 24 geometry, L.E.F. design and reactor flow rate. Thinner L.E.F. legs 36, smaller L.E.F. gussets 38 and thinner L.E.F. flow plates 22 are possible.
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patent: 5071617 (1991-12-01), Bryan et al.
patent: 5132077 (1992-07-01), Bryan
Chelliah Meena
Combustion Engineering Inc.
Mulholland John H.
Walsh Donald P.
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