EP0036982A1 - Enceinte pour le transport et/ou le stockage de matières radioactives - Google Patents

Enceinte pour le transport et/ou le stockage de matières radioactives Download PDF

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Publication number
EP0036982A1
EP0036982A1 EP81101812A EP81101812A EP0036982A1 EP 0036982 A1 EP0036982 A1 EP 0036982A1 EP 81101812 A EP81101812 A EP 81101812A EP 81101812 A EP81101812 A EP 81101812A EP 0036982 A1 EP0036982 A1 EP 0036982A1
Authority
EP
European Patent Office
Prior art keywords
insert basket
basket according
insert
graphite
matrix
Prior art date
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.)
Granted
Application number
EP81101812A
Other languages
German (de)
English (en)
Other versions
EP0036982B1 (fr
Inventor
Erhard Ing. grad. Müller
Richard Dr. Christ
Hartmut Dipl.-Phys. Kroll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Transnuklear GmbH
Original Assignee
Transnuklear GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Transnuklear GmbH filed Critical Transnuklear GmbH
Publication of EP0036982A1 publication Critical patent/EP0036982A1/fr
Application granted granted Critical
Publication of EP0036982B1 publication Critical patent/EP0036982B1/fr
Expired legal-status Critical Current

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Classifications

    • 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

  • the present invention relates to a removable insert basket with shafts for radioactive material, in particular for receiving spent fuel elements from nuclear reactors, located in a transport and / or storage container.
  • an insert basket is normally required in order to accommodate several spent fuel elements from nuclear reactors in the container at a predetermined distance from one another during transport or also during storage.
  • the respective necessary fuel element positions are therefore designed as corresponding shafts into which the fuel elements are introduced.
  • the shape and dimensions of the shaft cross-section depend on the fuel element types to be inserted.
  • the fuel assemblies must be able to be brought in and out remotely with ease.
  • the insert basket must be sufficiently stable so that it can withstand the mechanical and thermal loads during transport. It must also be designed so that the fuel assemblies to be transported are not damaged during transport and handling.
  • Such insert baskets are usually designed as a pure steel frame or as a solid block made of non-ferrous metal.
  • the shafts of the massive blocks are machine-made. If necessary, they are lined with steel.
  • the massive non-ferrous. Constructions are suitable as insert baskets because they can dissipate the residual heat generated due to good heat conduction to the tank wall without auxiliary medium. They preferably consist of aluminum or copper or their alloys. Boron or cadmium can also be added to these alloys as a neutron absorber.
  • the previously known insert baskets have a number of disadvantages. They have a high weight because they are predominantly made of metal due to the required thermal conductivity. In some cases, especially in the case of special steel frames, water cooling which is disadvantageous in the event of an accident is required. Only a small part of the neutron shielding is provided by the baskets, the main shielding effect is ensured by a special neutron protection on the shielding transport or storage container. At accidents, eg fire, this neutron protection can be destroyed on the shielding container.
  • the object was achieved in that the matrix of the insert basket consists predominantly of graphite.
  • FIG. 1 shows a side view of the insert basket according to the invention and illustration II the corresponding top view.
  • Figure III shows the structure of the insert basket made of building blocks according to the invention, with and without metal disks,
  • Figure IV the cup-shaped design of the metal disks and a tie rod arrangement, and
  • a removable insert basket (4) which contains shafts (6) for receiving radioactive material, in particular for receiving spent fuel elements.
  • the matrix (5) of the insert korbes (4) consists of graphite, a light and under normal conditions flame-retardant material with good heat conduction properties and excellent neutron moderation qualities.
  • the graphite of the graphite matrix (5) is preferably compressed, for example by pressing or other known methods, and then, if necessary, processed by turning, milling and drilling. It has proved to be particularly advantageous that the shafts (6) and / or the outer surface of the E insatzkorbes (4) metallic neutron-absorbing linings (7, 10).
  • These linings can be tubes with corresponding cross-sectional profiles (23, 24) or a basket container (10) which is provided with a cover (21).
  • the cover (21) contains openings (25) through which the radioactive material can be introduced into the shafts (6).
  • the insert basket (4) according to the invention is closed with a lid (11).
  • the use of boron steel as the lining (7) of the shafts (6), the basket container (10) and the cover (21) is particularly favorable, as is the addition of boron carbide to the matrix graphite (5). This improves n-capture and increases criticality security.
  • the graphite matrix (5) is advantageously constructed from appropriately shaped building blocks (8, 14, 15, 16, 22), a disk-shaped building block shape (8) having proven to be particularly favorable.
  • metal disks (9) between the graphite disks (8).
  • the metal discs (9) also be made of neutron absorbing material.
  • a particularly advantageous modification is the design of the metal disks (9) as a pot shape (12), in which the graphitic building blocks (8, 14, 15, 16, 22) are protected on all sides.
  • the basket container (10) can be omitted.
  • the insert basket (4) consists of a strong base plate (26) on which the linings (7) for the shafts (6) are fastened, e.g. welded or screwed as pipes, made of graphite blocks (8, 14, 15, 16, 22) and metal disks (9), all connected to each other by tie rods (19) and fastening elements (20).
  • the insert basket (4) according to the invention is excellently suited to be used alone as a storage basket in intermediate and final storage for storing radioactive substances. It is particularly advantageous to pass cooling channels (17) through the graphitic matrix material (5), preferably lined with neutron-absorbing metal tubes (18). If the insert basket (4) according to the invention is placed on a corresponding substructure in an air-cooled interim storage facility, the cooling air sweeps through the cooling channels (17) due to the thermals that arise and dissipates the waste heat generated by the radioactive decay.
  • the E insatzkorb (4) has occasionally to the tie rods (19), the basket container (10) and the basket lid (11) means, such as hooks or eyelets, devices for the handling crane or similar lifting.
  • the gap (13) between the basket (4) according to the invention and the shielding container (1) can be filled with graphite or metal powder, as can the remaining volume in the shafts (6) occupied by the radioactive fuel elements.
  • the insert basket (4) according to the invention also has the advantage that it can be assembled quickly, e.g. by threading perforated graphite disks (8) and metal disks (9) onto the lining tubes (23, 24) of the shafts (6) or onto the tubes (18) of the cooling channels (17) and optionally onto the tie rod (20).
  • the described configurations of the insert basket (4) either with the basket container (10) or with the metal disks (9) shaped as a pot shape (12) ensure that no graphite matrix material is easily lost even in the event of an accident.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Packages (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
EP81101812A 1980-03-29 1981-03-12 Enceinte pour le transport et/ou le stockage de matières radioactives Expired EP0036982B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3012310 1980-03-29
DE19803012310 DE3012310A1 (de) 1980-03-29 1980-03-29 Einsatzkorb fuer radioaktives material in transport- und/oder lagerbehaelter

Publications (2)

Publication Number Publication Date
EP0036982A1 true EP0036982A1 (fr) 1981-10-07
EP0036982B1 EP0036982B1 (fr) 1984-06-06

Family

ID=6098776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101812A Expired EP0036982B1 (fr) 1980-03-29 1981-03-12 Enceinte pour le transport et/ou le stockage de matières radioactives

Country Status (4)

Country Link
US (1) US4476394A (fr)
EP (1) EP0036982B1 (fr)
DE (1) DE3012310A1 (fr)
ES (1) ES8303793A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548820A1 (fr) * 1983-07-06 1985-01-11 Wiederaufarbeitung Von Kernbre Procede pour remplir des recipients metalliques d'une masse vitreuse fondue radioactive et dispositif de reception d'une masse vitreuse fondue radioactive
US4680159A (en) * 1984-08-17 1987-07-14 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh Storage container assembly for accommodating individual fuel rods of irradiated nuclear reactor fuel elements
EP1434239A1 (fr) * 2002-12-24 2004-06-30 GNB Gesellschaft für Nuklear-Behälter mbH Conteneur de transport et de stockage pour matières radioactives dégageant de la chaleur, des assemblages de combustible nucléaire irradiés ou des coquilles de matériau vitrifié fortement radioactif

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4738799A (en) * 1983-10-28 1988-04-19 Westinghouse Electric Corp. Permanent disposal of radioactive particulate waste
US4623510A (en) * 1983-10-28 1986-11-18 Westinghouse Electric Corp. Permanent disposal of radioactive particulate waste in cartridge containing ferromagnetic material
DE4135066C1 (fr) * 1991-10-24 1993-04-01 Gns Gesellschaft Fuer Nuklear-Service Mbh, 4300 Essen, De
JP3205179B2 (ja) * 1994-06-29 2001-09-04 株式会社日立製作所 放射性物質乾式貯蔵設備
JPH09211192A (ja) * 1996-01-30 1997-08-15 Sumitomo Metal Mining Co Ltd 核燃料物質の輸送方法
US20010011711A1 (en) * 1996-05-03 2001-08-09 Graham Nicholson Container for nuclear fuel transportation
GB9609304D0 (en) * 1996-05-03 1996-07-10 British Nuclear Fuels Plc Improvements in and relating to fuel transportation
TW444209B (en) * 1998-12-24 2001-07-01 Hitachi Ltd Radioactive material dry storage facility
DE102004049236B4 (de) * 2004-10-09 2006-07-13 GNS Gesellschaft für Nuklear-Service mbH Transport- und/oder Lagerbehälter für Brennelemente
US8300760B2 (en) * 2005-12-29 2012-10-30 Neucon Technology, Llc Compressed powder composite neutron absorber material
DE102006017427A1 (de) * 2006-04-13 2007-10-18 GNS Gesellschaft für Nuklear-Service mbH Transport- und/oder Lagerbehälter für Brennelemente
CN108962414B (zh) * 2018-06-15 2021-09-17 中国核电工程有限公司 一种钚溶液贮罐

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300620A1 (de) * 1973-01-08 1974-07-11 Transnuklear Gmbh Behaelter zum transport von plutoniumund uranylnitratloesungen
US3828197A (en) * 1973-04-17 1974-08-06 Atomic Energy Commission Radioactive waste storage
FR2254860A1 (en) * 1973-12-17 1975-07-11 Etude En Centre Radioactive object transport container - using copper plated stainless steel esp for irradiated fuel rod assemblies
FR2258692A1 (en) * 1974-01-23 1975-08-18 Transnucleaire Package for nuclear fuel elements - particularly for transport prior to reprocessing
DE2740933B1 (de) * 1977-09-10 1979-01-18 Rheinisch Westfaelisches Elek Transport- bzw. Lagerbehaelter fuer radioaktive Stoffe,insbesondere bestrahlte Kernreaktorbrennelemente
DE2828138A1 (de) * 1978-06-27 1980-01-10 Amtrust Ag Behaelter zum transportieren von radioaktiven brennelementen
GB2024694A (en) * 1978-06-28 1980-01-16 Transnuklear Gmbh Radioactive material enclosures
EP0020948A2 (fr) * 1979-06-21 1981-01-07 The Carborundum Company Conteneur pour des matériaux radioactifs, procédé de fabrication d'un tel conteneur, module utilisé pour cette fabrication et méthode de blindage contre les neutrons

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016463A (en) * 1958-04-28 1962-01-09 Smith Corp A O Multi-layer vessel having a neutron absorbing layer
US3882313A (en) * 1972-11-07 1975-05-06 Westinghouse Electric Corp Concentric annular tanks

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300620A1 (de) * 1973-01-08 1974-07-11 Transnuklear Gmbh Behaelter zum transport von plutoniumund uranylnitratloesungen
US3828197A (en) * 1973-04-17 1974-08-06 Atomic Energy Commission Radioactive waste storage
FR2254860A1 (en) * 1973-12-17 1975-07-11 Etude En Centre Radioactive object transport container - using copper plated stainless steel esp for irradiated fuel rod assemblies
FR2258692A1 (en) * 1974-01-23 1975-08-18 Transnucleaire Package for nuclear fuel elements - particularly for transport prior to reprocessing
DE2740933B1 (de) * 1977-09-10 1979-01-18 Rheinisch Westfaelisches Elek Transport- bzw. Lagerbehaelter fuer radioaktive Stoffe,insbesondere bestrahlte Kernreaktorbrennelemente
DE2828138A1 (de) * 1978-06-27 1980-01-10 Amtrust Ag Behaelter zum transportieren von radioaktiven brennelementen
GB2024694A (en) * 1978-06-28 1980-01-16 Transnuklear Gmbh Radioactive material enclosures
EP0020948A2 (fr) * 1979-06-21 1981-01-07 The Carborundum Company Conteneur pour des matériaux radioactifs, procédé de fabrication d'un tel conteneur, module utilisé pour cette fabrication et méthode de blindage contre les neutrons

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548820A1 (fr) * 1983-07-06 1985-01-11 Wiederaufarbeitung Von Kernbre Procede pour remplir des recipients metalliques d'une masse vitreuse fondue radioactive et dispositif de reception d'une masse vitreuse fondue radioactive
US4680159A (en) * 1984-08-17 1987-07-14 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh Storage container assembly for accommodating individual fuel rods of irradiated nuclear reactor fuel elements
EP1434239A1 (fr) * 2002-12-24 2004-06-30 GNB Gesellschaft für Nuklear-Behälter mbH Conteneur de transport et de stockage pour matières radioactives dégageant de la chaleur, des assemblages de combustible nucléaire irradiés ou des coquilles de matériau vitrifié fortement radioactif

Also Published As

Publication number Publication date
ES500106A0 (es) 1983-02-01
ES8303793A1 (es) 1983-02-01
US4476394A (en) 1984-10-09
EP0036982B1 (fr) 1984-06-06
DE3012310A1 (de) 1981-10-08

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