Fuel assembly spacer

Details Fuel assembly spacer Fuel assembly spacer

1983-02-07

1986-04-01

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376438, 376462, 376900, G21C 334

Patent

active

045797110

ABSTRACT:
A spacer for supporting a plurality of fuel rods forming a nuclear fuel assembly. The spacer comprises a peripheral band surrounding a bundle of the fuel rods and a plurality of spacer framework units, each holding therein one fuel rod. The spacer framework units are welded or brazed to the peripheral band so as to be arranged inside the peripheral band. Spring members are integrally formed on each of the spacer framework units. The spacer framework units, the spring members and the peripheral band are made of a zirconium alloy containing 5-25% by weight niobium and 0.1-1% by weight chromium and/or iron.

REFERENCES:
patent: 3994779 (1976-11-01), Brayman
patent: 4312705 (1982-01-01), Steinke

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