Nuclear materials apparatus and implementing the same

Patent metadata

Field	Value
Publication number	US-12100525-B2
Application number	US-202318216544-A
Country	US
Kind code	B2
Filing date	Jun 29, 2023
Priority date	May 4, 2015
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

An apparatus for supporting spent nuclear fuel including a plurality of wall plates arranged in an intersecting manner to define a basket apparatus extending along a longitudinal axis. The basket apparatus may include a plurality of fuel cells and a plurality of flux traps between adjacent fuel cells. A plurality of reinforcement members may be positioned in the flux traps and may extend between opposing ones of the wall plates that form the flux traps. Each of the wall plates may be a slotted wall plate. The slotted wall plates may be interlocked with one another to form the basket apparatus. Each of the slotted wall plates may include an upper edge, a lower edge, and a plurality of plate slots formed in each of the upper and lower edges. The plate slots of the slotted wall plates may receive intersecting slotted wall plates.

First claim

What is claimed is:

1. A basket apparatus for storing spent nuclear fuel in a fuel canister, the apparatus comprising:
a plurality of fuel storage tubes extending vertically along a longitudinal axis, the fuel storage tubes oriented parallel to each other and each comprising intersecting cell walls which define fuel cells each configured for holding a fuel assembly;
the fuel storage tubes being spaced apart from each other to form a flux trap spaces between opposing cells walls of each of a plurality of pairs of fuel storage tubes;
a plurality of reinforcement members positioned in the flux trap spaces, the reinforcement members each having opposite ends coupled to the opposing cell walls of each of the pairs of fuel storage tubes;
wherein the reinforce members act to maintain the flux trap spaces.

2. The apparatus according to claim 1 , wherein the cell walls of each tube are orthogonally oriented to each other to define a square cross-sectional shape for each of the fuel storage tubes.

3. The apparatus according to claim 2 , wherein the ends of the reinforcement members are welded to the opposing cells walls of each of the pairs of fuel storage tubes.

4. The apparatus according to claim 3 , further comprising a reinforcement slot formed in at least one of an upper edge or a lower edge of the opposing cell walls of the pairs of fuel storage tubes, the reinforcement slots each receiving one of the ends of the reinforcement members.

5. The apparatus according to claim 4 , wherein reinforcement slots are formed in each of the upper and lower edges of the opposing cell walls.

6. The apparatus according to claim 4 , wherein each of the reinforcement members comprise a body portion, and first and second flange portions protruding from opposite sides of the body portion, the first and second flange portions defining the ends of the reinforcement members.

7. The apparatus according to claim 6 , wherein the body portion abuts each of the opposing cell walls of the pairs of fuel storage tubes below the reinforcement slots.

8. The apparatus according to claim 6 , wherein the reinforcement members are T-shaped or cruciform shaped.

9. The apparatus according to claim 6 , wherein the body portion comprises a flat plate.

10. The apparatus according to claim 4 , wherein each flux trap space includes at least one pair of reinforcement members.

Assignees

• Holtec International

Inventors

• Singh Krishna P
• Anton P Stefan

Classifications

• G21F5/10

  Heat-removal systems, e.g. using circulating fluid or cooling fins · CPC title

• G21F5/12

  Closures for containers; Sealing arrangements · CPC title

• G21F9/34

  Disposal of solid waste · CPC title

• G21F5/08

  Shock-absorbers, e.g. impact buffers for containers · CPC title

• Y02E30/30

  Nuclear fission reactors · CPC title