WO1995010838B1 - Containers for transportation and storage of spent nuclear fuel - Google Patents
Containers for transportation and storage of spent nuclear fuelInfo
- Publication number
- WO1995010838B1 WO1995010838B1 PCT/US1994/011457 US9411457W WO9510838B1 WO 1995010838 B1 WO1995010838 B1 WO 1995010838B1 US 9411457 W US9411457 W US 9411457W WO 9510838 B1 WO9510838 B1 WO 9510838B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- canister
- shell
- nuclear fuel
- neutron absorbing
- lid
- Prior art date
Links
- 238000004642 transportation engineering Methods 0.000 title abstract 3
- 239000002915 spent fuel radioactive waste Substances 0.000 title 1
- 230000000712 assembly Effects 0.000 claims abstract 16
- 239000003758 nuclear fuel Substances 0.000 claims abstract 14
- 230000000607 poisoning Effects 0.000 claims abstract 2
- 231100000572 poisoning Toxicity 0.000 claims abstract 2
- 239000011358 absorbing material Substances 0.000 claims 4
- 230000000875 corresponding Effects 0.000 claims 4
- 229910000831 Steel Inorganic materials 0.000 claims 3
- 239000010959 steel Substances 0.000 claims 3
- 239000012530 fluid Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract 1
Abstract
Disclosed is a transportation and storage assembly for transporting and storing nuclear fuel rod assemblies. The transportation and storage assembly includes a basket assembly (24) designed for failed nuclear fuel rod assemblies, or a basket assembly (122) designed for undamaged nuclear fuel rod assemblies. The basket assemblies (24, 122) are inserted into a canister (22). The canister (22) includes a shell (26) that receives and surrounds the basket assemblies (24, 122), and lids (28, 96) that enclose the shell (26). The basket assemblies (24, 122) include a plurality of apertured plates (36, 124) interconnected by structural members (42, 88) that maintain the plates (36, 124) in a spaced apart relationship, axially aligning the apertures (38, 126) in the plates (36, 124). In the basket assembly (24) for failed nuclear fuel rod assemblies, a container (44) is inserted into a row of axially aligned apertures (122), having a drain passage (104). In the basket assembly (122) for undamaged nuclear fuel rod assemblies, a plurality of guide sleeve assemblies (132) are formed from structural members (134, 138), and a layer (136) including a neutron poisoning material. The containers (44) and guide sleeve assemblies (132) are each for receiving a nuclear fuel rod assembly.
Claims
AMENDED CLAIMS
[received by the International Bureau on 4 April 1995 (04.04.95); original claims 13 and 15-20 amended; new claims 21-25 added; remaining claims unchanged (3 pages)] the open end of the canister when each container is inserted in a row, wherein a first drainage passage is defined in the closed end of each container so that when each container is inserted in a row, and the canister is oriented so that the longitudinal axis of each container is generally vertical and the closed end is lower in elevation than the open end, substantially any liquid within each container will drain out.
11. The canister of Claim 10, each container having a second drainage passage defined in the cover.
12. The canister of Claim 6, wherein each container is removable from each row of axially aligned apertures.
13. A canister for storing and transporting nuclear fuel assemblies, comprising:
(a) a basket assembly, including:
(i) a plurality of apertured plates; and (ii) structural members interconnecting the apertured plates, maintaining the plates in a spaced apart relationship with the apertures in each plate axially aligned into a plurality of rows;
(b) an exterior shell, forming an enclosure open at one end, the exterior shell receiving and surrounding the basket assembly, the basket assembly being oriented within the shell, so that the longitudinal axis of each row is substantially parallel to the longitudinal axis of the shell;
(c) a plurality of guide sleeves, corresponding to the number of rows of axially aligned plate apertures, each guide sleeve for receiving a nuclear fuel assembly and having a longitudinal axis generally coincident with a respective corresponding row, each guide sleeve comprising: (i) a first structural layer;
(ii) a second structural layer;
(iii) a neutron absorbing layer interposed between the first structural layer and the second structural layer, the neutron absorbing layer including a channel; and (iv) a first retainer having two ends, one end being connected to at least one of the structural layers, and the other end of the retainer being received in the channel in the neutron absorbing layer for limiting movement of the neutron absorbing layer in a first direction; and
(d) a lid, adapted to mate with the open end of the shell, thereby closing the open end of the shell.
14. The canister of Claim 13, wherein the first structural layer comprises a hollow steel jacket inserted into each row of axially aligned apertures.
15. The canister of Claim 14, wherein the neutron absorbing layer comprises a borated neutron absorbing material.
16. The canister of Claim 15, wherein the second structural layer comprises a steel jacket, at least surrounding the portion of the borated neutron absorbing material exposed between the apertured plates.
17. The canister of Claim 13, further comprising a weld sealing the lid to the shell to form an airtight enclosure.
18. A system for storing and transporting nuclear fuel assemblies of two different lengths, comprising:
(a) a basket assembly, including: (i) a plurality of apertured plates; and
(ii) structural members interconnecting the apertured plates, maintaining the plates in a spaced apart relationship with the apertures in each plate axially aligned into a plurality of rows;
(b) an exterior shell, forming an enclosure open at one end, the exterior shell receiving and surrounding the basket assembly, the basket assembly being oriented within the shell, so that the longitudinal axis of each row is substantially parallel to the longitudinal axis of the shell;
(c) a plurality of guide sleeves, corresponding to the number of rows of axially aligned plate apertures, each guide sleeve for receiving a nuclear fuel assembly and having a longitudinal axis generally coincident with a respective corresponding row, each guide sleeve comprising:
(i) a first structural layer;
(ii) a neutron absorbing layer, supported by the first structural layer; and (ϋi) a second structural layer, structurally supporting the side of the neutron poisoning layer opposite the first structural layer;
(d) a first lid, adapted to mate with the open end of the shell, thereby closing the open end of the shell, the first lid being used with nuclear fuel assemblies of one length; and
(e) a second lid, adapted to mate with the open end of the shell, thereby closing the open end of the shell, the second lid being used with nuclear fuel assemblies of the other length.
19. The system for storing and transporting nuclear fuel assemblies of Claim 18, wherein the first lid is thinner than the second lid.
20. The system for storing and transporting nuclear fuel assemblies of Claim 19, wherein the first lid includes a lead core surrounded by an outer layer of steel.
21. The canister of Claim 13, further comprising a second retainer connected to at least one of the structural layers for limiting movement of the neutron absorbing layer in a second direction, opposite from the first direction.
22. The canister of Claim 13, wherein the first structural layer comprises a four-sided hollow jacket.
23. The canister of Claim 22, wherein the neutron absorbing layer comprises at least one separate sheet of a borated neutron absorbing material, placed adjacent at least one side of the four-sided hollow jacket.
24. The canister of Claim 13, where the neutron absorbing layer comprises at least one separate, generally rectangular shaped sheet of a borated neutron absorbing material.
25. The canister of Claim 13, wherein the neutron absorbing layer is in fluid communication with the environment exterior to the first and second structural layers.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51196095A JP3661873B2 (en) | 1993-10-08 | 1994-10-07 | Container for transportation and storage of spent nuclear fuel |
| EP94930679A EP0673541B1 (en) | 1993-10-08 | 1994-10-07 | Container for transportation and storage of nuclear fuel assemblies |
| AU79726/94A AU7972694A (en) | 1993-10-08 | 1994-10-07 | Containers for transportation and storage of spent nuclear fuel |
| DE69416106T DE69416106T2 (en) | 1993-10-08 | 1994-10-07 | CONTAINERS FOR THE TRANSPORT AND STORAGE OF FUEL ELEMENTS |
| FI952817A FI952817A (en) | 1993-10-08 | 1995-06-08 | Containers for transport and storage of spent nuclear fuel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/131,971 US5438597A (en) | 1993-10-08 | 1993-10-08 | Containers for transportation and storage of spent nuclear fuel |
| US08/131,971 | 1993-10-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1995010838A1 WO1995010838A1 (en) | 1995-04-20 |
| WO1995010838B1 true WO1995010838B1 (en) | 1995-05-11 |
Family
ID=22451832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1994/011457 WO1995010838A1 (en) | 1993-10-08 | 1994-10-07 | Containers for transportation and storage of spent nuclear fuel |
Country Status (13)
| Country | Link |
|---|---|
| US (2) | US5438597A (en) |
| EP (1) | EP0673541B1 (en) |
| JP (1) | JP3661873B2 (en) |
| KR (2) | KR100350779B1 (en) |
| CN (1) | CN1117322A (en) |
| AT (1) | ATE176076T1 (en) |
| AU (1) | AU7972694A (en) |
| DE (1) | DE69416106T2 (en) |
| ES (1) | ES2129674T3 (en) |
| FI (1) | FI952817A (en) |
| TW (1) | TW233365B (en) |
| WO (1) | WO1995010838A1 (en) |
| ZA (1) | ZA947869B (en) |
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-
1993
- 1993-10-08 US US08/131,971 patent/US5438597A/en not_active Expired - Lifetime
- 1993-10-15 TW TW082108574A patent/TW233365B/en not_active IP Right Cessation
-
1994
- 1994-10-07 CN CN94190772A patent/CN1117322A/en active Pending
- 1994-10-07 KR KR1020027005404A patent/KR100350779B1/en not_active IP Right Cessation
- 1994-10-07 AT AT94930679T patent/ATE176076T1/en active
- 1994-10-07 KR KR1019950702318A patent/KR100378865B1/en not_active IP Right Cessation
- 1994-10-07 AU AU79726/94A patent/AU7972694A/en not_active Abandoned
- 1994-10-07 EP EP94930679A patent/EP0673541B1/en not_active Expired - Lifetime
- 1994-10-07 DE DE69416106T patent/DE69416106T2/en not_active Expired - Lifetime
- 1994-10-07 ZA ZA947869A patent/ZA947869B/en unknown
- 1994-10-07 JP JP51196095A patent/JP3661873B2/en not_active Expired - Lifetime
- 1994-10-07 WO PCT/US1994/011457 patent/WO1995010838A1/en active IP Right Grant
- 1994-10-07 ES ES94930679T patent/ES2129674T3/en not_active Expired - Lifetime
-
1995
- 1995-06-08 US US08/488,727 patent/US5550882A/en not_active Expired - Lifetime
- 1995-06-08 FI FI952817A patent/FI952817A/en not_active Application Discontinuation
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