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US3575601A - Transport containers for radioactive materials - Google Patents

Transport containers for radioactive materials Download PDF

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Publication number
US3575601A
US3575601A US817263A US3575601DA US3575601A US 3575601 A US3575601 A US 3575601A US 817263 A US817263 A US 817263A US 3575601D A US3575601D A US 3575601DA US 3575601 A US3575601 A US 3575601A
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US
United States
Prior art keywords
container
vessel
inserts
chamber
outer vessel
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US817263A
Inventor
Graham Eades Lindsay
Leslie Samuel Evans
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UK Atomic Energy Authority
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UK Atomic Energy Authority
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Publication of US3575601A publication Critical patent/US3575601A/en
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal
    • G21F5/008—Containers for fuel elements
    • G21F5/012—Fuel element racks in the containers
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal

Definitions

  • This invention relates to containers for the carriage of radioactive materials and is particularly but not exclusively concerned with containers for transporting irradiated nuclear fuel elements.
  • transport container generally of steel, cast iron and lead construction have been specifically designed for particular fonns of fuel element with the result that a multiplicity of noninterchangeable containers are available.
  • the noninterchangeability of the containers leads to duplication of transport facilities special support and. handling arrangements etc. with resultant increases in cost.
  • One object of the present invention is to provide a container for the transportation of radioactive materials in which the possibility of accidental release of the contents of the container is minimized and a further object of the invention is to provide a container particularly suitable for the transportation of a variety of radioactive materials.
  • a container forthe transportation of radioactive material hemretically scalable vessel of impact resistant construction, internals for said vessel formed from dense radiation shielding material and means associated with said internals to shieldably locate said radioactive material.
  • the vemel has the form of a thick walled high pressure drum and the internals comprise -a plurality of shielding inserts arranged to enclose a central load receiving space.
  • the inserts may be provided with locating pockets for the material being carried or alternatively a separate basket can be used to position the radioactive material relative to the shielding inserts.
  • the vessel is circular in cross section and is provided with dished ends.
  • the vessel may include a wall extension portion adapted for insertion between the body of the vessel and a removable lid or top portion to accommodate long length loads.
  • the vessel is provided with external heat transfer fins and a number of said fins extend to the base of the vessel to form vessel support members.
  • FIG. I is a sectional elevation of a transport container for irradiated nuclear fuel elements
  • FIG. 2 is a sectional plan on the line II-Il of FIG. 1;
  • FIG. 3 is a sectional elevation of a container similar to that of FIG. I but showing an extension portion.
  • a container for irradiated fuel elements comprises a thick steel outer vessel 1 into which can be inserted cast iron shielding members arranged to suit the dimensions of the fuel elements being transported.
  • the vessel is fabricated from steel plates approximately 5.5 inches thick.
  • the top and bottom are ellipsoidal, the top comprising a full diameter lid 3 removably secured to the body of the container by a plurality of bolts 4 located in recesses 5 formed in the lid.
  • the lid is spigotted to the body and joint rings 6 interposed between the lid and the body ensures leak comprises a ti htness.
  • e container approximately 5 feet in diameter, IS provided cast iron shielding members l0, l1 and 12.
  • Members 10 and 11 form the top and bottom of an inner container and are spigotted to a substantially annularmember 12.
  • Member 12 is apertured to provide locating positions I3 for irradiated nuclear fuel elements. For ease of handling the shielding member 10 may be attached to and removable with the lid.
  • FIG. 3 shows a modification to the container whereby the fuel elements having a length greater than normal can be accommodated within the container.
  • the container is extended by inserting an annular extension portion 14 between the lid and the container body. Extension portion 14 is provided with mating faces corresponding to the joint surface on the lid and body, and is secured in position by the use of long lid clamping bolts 15.
  • the internal shielding container is also extended by the insertion of a further annular member 16.
  • the shielding blocks 12 and 16 need not be provided with pockets for the location of the fuel' elements.
  • the elements may be positioned in a separate basket (not shown) insertable in a central aperture provided in the said blocks. Such an arrangement provides great flexibility in the dimensions and number of fuel elements that can be accommodated.
  • the internal shielding need not fill all the internal shielding space ,within'the steel container, for example where shielding conditions permit a thinner section inner container of material or construction to meet a particular requirement can be used and the inner shielding members spaced from the outer wall by suitable struts
  • the struts may be of a light weight material to reduce the total weight of the container in this instance.
  • the struts also act as heat transfer paths between the internal shielding and the outer container.
  • the transport container described is particularly advantageous in the ease by which a variety of active materials can be accommodated in a single construction of basic outer container by replacing or rearranging the internal shielding members to provide the desired degree of shielding for the specific load.
  • a container for transportation of radioactive material comprising an impact resistent outer vessel constructed from a plurality. of parts, interlitting to define a hermetically sealable chamber, an inner container, the outer surfaces of which conform to the inner surfaces of the outer vessel, said inner container removably located in said chamber, said inner container constructed of a plurality of radioactive shielding inserts interfitting to define a second closable chamber therein, said inserts being interchangeable with similar inserts such that the dimensions of said second chamber may be selectively varied to accommodate different shapes and sizes of said material without necessarily adjusting the dimensions of the outer vessel.
  • a container according to claim 1, wherein the outer vessel comprises a body portion, a removable lid and a wall extension portion adapted for insertion between said body portion and said lid to accommodate long length loads.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Packages (AREA)
  • Stackable Containers (AREA)

Abstract

A container for the transportation of radioactive material, specifically, irradiated fuel elements. The transport container consists of an outer shock resistant steel container and an interfitted inner container constructed of a plurality of radioactive shielding inserts.

Description

United States Patent 1 1 3,575,601
[72] Inventors Graham Eades Lindsay [56] 'ReterencesCited "W Dim; UNITED STATES PATENTS k t' f 'g g 2,935,616 5/1960 Smith,Jr. e161. 250/108 3,046,403 7/1962 Montgomery.... 250/106(S) 2%- 23 3,111,586 11/1963 Rogers 250/103 3,113,215 12/1963 Allen 250/108 g i g May 3,119,933 1/1964 Allen 250/108 [45] Patented 1, 3,310,676 3/1967 Haram,.lr 250/43.5x
9 [73] Assignee United Kingdom Atomic Energy Authority i a y Examiner-Archie R. Borchelt London, England AttorneyLarson, Taylor and Hinds [54] TRANSPORT CONTAINERS FOR RADIOACTIVE MATERIALS 4 Claims, 3 Drawing Figs. [52] U.S. Cl. 250/108, ABSTRACT: A container for the transportation of radioactive 250/106 material, specifically, irradiated fuel elements. The transport [51] Int. Cl G2lf 1/00 container consists of an outer shock resistant steel container [50] Field of Search 250/106, and an interfitted inner container constructed of a plurality of 108 radioactive shielding inserts.
6 &9 I I I I I i 2 I 7 PATENTED APR20197| 335751301 SHEET 2 OF 2 INVENTORS GRAHAM E. LINDSAY LESLIE S. EVANS ATTORNEYS 1. TRANSPORT CONTAINERS FOR RADIOACTIVE MATERIALS This application is a continuation of our previous application, Ser. No. 548,255, filed Mayv 6, 1966, now abandoned.
This invention relates to containers for the carriage of radioactive materials and is particularly but not exclusively concerned with containers for transporting irradiated nuclear fuel elements.
An irradiated fuel element transport container is required to comply with international regulations covering the transportation of radioactive materials. The regulations govern the provision of biological shielding, permitted radiation levels and acceptable internal and external temperatures and require that the container shall withstand a defined maximum transport accident, for example a container must be capable of withstanding a free drop test from 30 feet 'followed additionally by a fire test at 800 C. for 30 minut'es without damage sufficiently severe to cause a release of contents or a significant reduction in shielding.
Known forms of transport container, generally of steel, cast iron and lead construction have been specifically designed for particular fonns of fuel element with the result that a multiplicity of noninterchangeable containers are available. The noninterchangeability of the containers leads to duplication of transport facilities special support and. handling arrangements etc. with resultant increases in cost.
One object of the present invention is to provide a container for the transportation of radioactive materials in which the possibility of accidental release of the contents of the container is minimized and a further object of the invention is to provide a container particularly suitable for the transportation of a variety of radioactive materials.
According to the invention a container forthe transportation of radioactive material hemretically scalable vessel of impact resistant construction, internals for said vessel formed from dense radiation shielding material and means associated with said internals to shieldably locate said radioactive material.
Preferably the vemel has the form of a thick walled high pressure drum and the internals comprise -a plurality of shielding inserts arranged to enclose a central load receiving space. The inserts may be provided with locating pockets for the material being carried or alternatively a separate basket can be used to position the radioactive material relative to the shielding inserts. In one form the vessel is circular in cross section and is provided with dished ends.
The vessel may include a wall extension portion adapted for insertion between the body of the vessel and a removable lid or top portion to accommodate long length loads.
In one form the vessel is provided with external heat transfer fins and a number of said fins extend to the base of the vessel to form vessel support members.
To enable the nature of the invention to be more readily understood embodiments of the invention will now be described by way of example only with reference to the accompanying drawings. In the drawings:
FIG. I is a sectional elevation of a transport container for irradiated nuclear fuel elements;
FIG. 2 is a sectional plan on the line II-Il of FIG. 1; an
FIG. 3 is a sectional elevation of a container similar to that of FIG. I but showing an extension portion.
Referring to FIG. I and FIG. 2 of the drawings a container for irradiated fuel elements comprises a thick steel outer vessel 1 into which can be inserted cast iron shielding members arranged to suit the dimensions of the fuel elements being transported.
The vessel is fabricated from steel plates approximately 5.5 inches thick. The top and bottom are ellipsoidal, the top comprising a full diameter lid 3 removably secured to the body of the container by a plurality of bolts 4 located in recesses 5 formed in the lid. The lid is spigotted to the body and joint rings 6 interposed between the lid and the body ensures leak comprises a ti htness. I
e container, approximately 5 feet in diameter, IS provided cast iron shielding members l0, l1 and 12. Members 10 and 11 form the top and bottom of an inner container and are spigotted to a substantially annularmember 12. Member 12 is apertured to provide locating positions I3 for irradiated nuclear fuel elements. For ease of handling the shielding member 10 may be attached to and removable with the lid.
FIG. 3 shows a modification to the container whereby the fuel elements having a length greater than normal can be accommodated within the container. The container is extended by inserting an annular extension portion 14 between the lid and the container body. Extension portion 14 is provided with mating faces corresponding to the joint surface on the lid and body, and is secured in position by the use of long lid clamping bolts 15. The internal shielding container is also extended by the insertion of a further annular member 16.
It will be appreciated that the shielding blocks 12 and 16 need not be provided with pockets for the location of the fuel' elements. The elements may be positioned in a separate basket (not shown) insertable in a central aperture provided in the said blocks. Such an arrangement provides great flexibility in the dimensions and number of fuel elements that can be accommodated.
The internal shielding need not fill all the internal shielding space ,within'the steel container, for example where shielding conditions permit a thinner section inner container of material or construction to meet a particular requirement can be used and the inner shielding members spaced from the outer wall by suitable struts The struts may be of a light weight material to reduce the total weight of the container in this instance. The struts also act as heat transfer paths between the internal shielding and the outer container.
It will be apparent that the transport container described is particularly advantageous in the ease by which a variety of active materials can be accommodated in a single construction of basic outer container by replacing or rearranging the internal shielding members to provide the desired degree of shielding for the specific load.
We claim:
I. A container for transportation of radioactive material comprising an impact resistent outer vessel constructed from a plurality. of parts, interlitting to define a hermetically sealable chamber, an inner container, the outer surfaces of which conform to the inner surfaces of the outer vessel, said inner container removably located in said chamber, said inner container constructed of a plurality of radioactive shielding inserts interfitting to define a second closable chamber therein, said inserts being interchangeable with similar inserts such that the dimensions of said second chamber may be selectively varied to accommodate different shapes and sizes of said material without necessarily adjusting the dimensions of the outer vessel.
2. A container according to claim 1, wherein the outer vessel comprises a body portion, a removable lid and a wall extension portion adapted for insertion between said body portion and said lid to accommodate long length loads.
3. A container according to claim I, wherein the inserts are provided with locating pockets for the material being carried.
4. A container according to claim 3, wherein the vessel is provided with external heat transfer fins and a number of said fins extend to the base of the outer vessel to form vessel support members.

Claims (4)

1. A container for transportation of radioactive material comprising an impact resistent outer vessel constructed from a plurality of parts, interfitting to define a hermetically sealable chamber, an inner container, the outer surfaces of which conform to the inner surfaces of the outer vessel, said inner container removably located in said chamber, said inner container constructed of a plurality of radioactive shielding inserts interfitting to define a second closable chamber therein, said inserts being interchangeable with similar inserts such that the dimensions of said second chamber may be selectively varied to accommodate different shapes and sizes of said material without necessarily adjusting the dimensions of the outer vessel.
2. A container according to claim 1, wherein the outer vessel comprises a body portion, a removable lid and a wall extension portion adapted for insertion between said body portion and said lid to accommodate long length loads.
3. A container according to claim 1, wherein the inserts are provided with locating pockets for the material being carried.
4. A container according to claim 3, wherein the vessel is provided with external heat transfer fins and a number of said fins extend to the base of the outer vessel to form vessel support members.
US817263A 1965-05-07 1969-04-11 Transport containers for radioactive materials Expired - Lifetime US3575601A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB19460/65A GB1145983A (en) 1965-05-07 1965-05-07 Improvements in or relating to transport containers for radioactive materials
US81726369A 1969-04-11 1969-04-11

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US3575601A true US3575601A (en) 1971-04-20

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DE (1) DE1564969B2 (en)
GB (1) GB1145983A (en)
SE (1) SE321036B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915376A1 (en) * 1979-04-14 1980-10-23 Transnuklear Gmbh CONTAINER OF CONTAINERS FOR TRANSPORTATION AND STORAGE OF RADIOACTIVE WASTE MATERIALS, IN PARTICULAR IRRADIATED NUCLEAR REACTOR FUEL ELEMENTS
US4508969A (en) * 1980-06-28 1985-04-02 Deutsche Gesellschaft Fur Wiederaufarbeitung Device for holding, transporting and final storing of burned-out reactor fuel elements
US4543488A (en) * 1978-11-07 1985-09-24 Transnuklear Gmbh Transportation and storage for nuclear fuel wastes
US4803042A (en) * 1987-11-23 1989-02-07 Westinghouse Electric Corp. Nuclear reactor core component shipping container
US4935943A (en) * 1984-08-30 1990-06-19 The United States Of America As Represented By The United States Department Of Energy Corrosion resistant storage container for radioactive material
US5061858A (en) * 1987-10-19 1991-10-29 Westinghouse Electric Corp. Cask assembly for transporting radioactive material of different intensities
US5442666A (en) * 1994-03-04 1995-08-15 Westinghouse Electric Corporation Apparatus for storing control drive rod shafts during chemical decontamination of a reactor
FR2774800A1 (en) * 1998-02-10 1999-08-13 Framatome Sa TRANSPORT CONTAINER FOR NUCLEAR FUEL ASSEMBLIES
WO2001063621A1 (en) * 2000-02-24 2001-08-30 Societe Pour Les Transports De L'industrie Nucleaire - Transnucleaire Double-chamber container for transporting or storing radioactive materials
US20100014623A1 (en) * 2006-08-21 2010-01-21 Areva Np Transport container for nuclear fuel assemblies and use of said container
US20100284778A1 (en) * 2007-12-26 2010-11-11 Areva Np Transport Container for Nuclear Fuel Assembly and Method of Transporting a Nuclear Fuel Assembly
FR3017237A1 (en) * 2014-02-03 2015-08-07 Andra CONTAINER FOR STORING PARCELS OF RADIOACTIVE WASTE IN DEEP GEOLOGICAL FORMATION

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE376995B (en) 1969-08-13 1975-06-16 Transnucleaire
DE2065863B2 (en) * 1969-08-13 1981-07-16 Transnucléaire, Société pour les Transports de l'Industrie Nucléaire, Paris Containers for the storage and transport of radioactive materials
DE2715367A1 (en) * 1977-04-06 1978-10-12 Kernforschungsz Karlsruhe REMOVER FOR RELEASING NUCLEAR FUEL FROM FUEL ELEMENT SECTIONS

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935616A (en) * 1955-02-14 1960-05-03 Farrel Birmingham Co Inc Radiation shielding container
US3046403A (en) * 1959-04-17 1962-07-24 Babcock & Wilcox Co Device for the storage of a heat evolving material
US3111586A (en) * 1961-08-25 1963-11-19 Baldwin Lima Hamilton Corp Air-cooled shipping container for nuclear fuel elements
US3113215A (en) * 1961-02-27 1963-12-03 Stanray Corp Cask construction for radioactive material
US3119933A (en) * 1960-05-03 1964-01-28 Stanray Corp Container for transporting thermally hot intensely radioactive material
US3310676A (en) * 1963-08-20 1967-03-21 Nuclear Material And Equipment Neutron irradiating apparatus having a plurality of axial shielded passages for interchanging sources and target materials

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935616A (en) * 1955-02-14 1960-05-03 Farrel Birmingham Co Inc Radiation shielding container
US3046403A (en) * 1959-04-17 1962-07-24 Babcock & Wilcox Co Device for the storage of a heat evolving material
US3119933A (en) * 1960-05-03 1964-01-28 Stanray Corp Container for transporting thermally hot intensely radioactive material
US3113215A (en) * 1961-02-27 1963-12-03 Stanray Corp Cask construction for radioactive material
US3111586A (en) * 1961-08-25 1963-11-19 Baldwin Lima Hamilton Corp Air-cooled shipping container for nuclear fuel elements
US3310676A (en) * 1963-08-20 1967-03-21 Nuclear Material And Equipment Neutron irradiating apparatus having a plurality of axial shielded passages for interchanging sources and target materials

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543488A (en) * 1978-11-07 1985-09-24 Transnuklear Gmbh Transportation and storage for nuclear fuel wastes
DE2915376A1 (en) * 1979-04-14 1980-10-23 Transnuklear Gmbh CONTAINER OF CONTAINERS FOR TRANSPORTATION AND STORAGE OF RADIOACTIVE WASTE MATERIALS, IN PARTICULAR IRRADIATED NUCLEAR REACTOR FUEL ELEMENTS
US4508969A (en) * 1980-06-28 1985-04-02 Deutsche Gesellschaft Fur Wiederaufarbeitung Device for holding, transporting and final storing of burned-out reactor fuel elements
US4935943A (en) * 1984-08-30 1990-06-19 The United States Of America As Represented By The United States Department Of Energy Corrosion resistant storage container for radioactive material
US5061858A (en) * 1987-10-19 1991-10-29 Westinghouse Electric Corp. Cask assembly for transporting radioactive material of different intensities
US4803042A (en) * 1987-11-23 1989-02-07 Westinghouse Electric Corp. Nuclear reactor core component shipping container
US5442666A (en) * 1994-03-04 1995-08-15 Westinghouse Electric Corporation Apparatus for storing control drive rod shafts during chemical decontamination of a reactor
WO1999041754A1 (en) * 1998-02-10 1999-08-19 Framatome Transport container for nuclear fuel assemblies
FR2774800A1 (en) * 1998-02-10 1999-08-13 Framatome Sa TRANSPORT CONTAINER FOR NUCLEAR FUEL ASSEMBLIES
US6580085B1 (en) 1998-02-10 2003-06-17 Framatome Transport container for nuclear fuel assemblies
WO2001063621A1 (en) * 2000-02-24 2001-08-30 Societe Pour Les Transports De L'industrie Nucleaire - Transnucleaire Double-chamber container for transporting or storing radioactive materials
FR2805655A1 (en) * 2000-02-24 2001-08-31 Transnucleaire DOUBLE ENCLOSURE CONTAINER FOR TRANSPORTING OR STORING RADIOACTIVE MATERIALS
US20100014623A1 (en) * 2006-08-21 2010-01-21 Areva Np Transport container for nuclear fuel assemblies and use of said container
US8259892B2 (en) * 2006-08-21 2012-09-04 Areva Np Transport container for nuclear fuel assemblies and use of said container
US20100284778A1 (en) * 2007-12-26 2010-11-11 Areva Np Transport Container for Nuclear Fuel Assembly and Method of Transporting a Nuclear Fuel Assembly
CN101971267A (en) * 2007-12-26 2011-02-09 阿海珐核能公司 Transport container for nuclear fuel assembly and method of transporting a nuclear fuel assembly
US9275768B2 (en) * 2007-12-26 2016-03-01 Areva Np Transport container for nuclear fuel assembly and method of transporting a nuclear fuel assembly
CN101971267B (en) * 2007-12-26 2016-10-19 阿海珐核能公司 The transport container of nuclear fuel assembly and the way of transportation of transport nuclear fuel assembly
FR3017237A1 (en) * 2014-02-03 2015-08-07 Andra CONTAINER FOR STORING PARCELS OF RADIOACTIVE WASTE IN DEEP GEOLOGICAL FORMATION

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Publication number Publication date
DE1564969B2 (en) 1971-03-18
DE1564969A1 (en) 1970-10-15
GB1145983A (en) 1969-03-19
BE680699A (en) 1966-11-07
SE321036B (en) 1970-02-23

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