Nuclear reactor fuel assembly

Details Nuclear reactor fuel assembly Nuclear reactor fuel assembly

1987-09-24

1989-05-02

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376443, G21C 334

Patent

active

048270636

ABSTRACT:
A nuclear reactor fuel assembly includes mutually parallel fuel rods and guide tubes for control rods. Two lattice-like spacers have mesh openings formed therein. One of the fuel rods or one of the guide tubes is guided and secured in each of the mesh openings. An additional lattice is secured at least to one of the guide tubes between the two spacers as seen in the longitudinal direction of the fuel rods and the guide tubes. The additional lattice has mesh openings formed therein defining sides of the mesh openings and a smooth and flat surface of the additional lattice in the mesh openings. Turbulence-promoting vanes protrude beyond the sides of the mesh openings formed in the additional lattice. One of the fuel rods is guided with play or one of the guide tubes is guided through each of the mesh openings formed in the additional lattice. Brackets grip the additional lattice between at least one of the fuel rods or the guide tubes at the outside of the fuel assembly.

REFERENCES:
patent: 3933584 (1976-01-01), Litt
patent: 4125434 (1978-11-01), Fromel
patent: 4692302 (1987-09-01), DeMario
patent: 4728489 (1988-03-01), Hatfield

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