EP0942435B1 - Strahlenschutzvorrichtung für Behälter zum Transport von radioaktiven Stoffen und Verfahren zum Aufstellen einer solchen Strahlenschutzvorrichtung - Google Patents

Strahlenschutzvorrichtung für Behälter zum Transport von radioaktiven Stoffen und Verfahren zum Aufstellen einer solchen Strahlenschutzvorrichtung Download PDF

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Publication number
EP0942435B1
EP0942435B1 EP99420066A EP99420066A EP0942435B1 EP 0942435 B1 EP0942435 B1 EP 0942435B1 EP 99420066 A EP99420066 A EP 99420066A EP 99420066 A EP99420066 A EP 99420066A EP 0942435 B1 EP0942435 B1 EP 0942435B1
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EP
European Patent Office
Prior art keywords
container
metal
chamber
neutron
filled
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.)
Expired - Lifetime
Application number
EP99420066A
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English (en)
French (fr)
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EP0942435A1 (de
Inventor
André Lemogne
Dominique Francois
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TN International SA
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Cogema Logistics SA
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Publication of EP0942435A1 publication Critical patent/EP0942435A1/de
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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
    • G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
    • 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

Definitions

  • the invention relates to a radiation shielding device located at the outer surface of transport or storage containers for materials radioactive to ensure safety.
  • Containers for radioactive material generally include a envelope of great height comprising a cylindrical body and sealing means closing it at its two ends in a sealed manner; in the internal cavity thus delimited takes place of said radioactive materials, in particular irradiated fuel assemblies or vitrified waste.
  • This envelope must mechanically withstand impacts even the most severe, provide biological protection against radiation and ensure thermal transfer to dissipate the heat emitted by the materials radioactive.
  • the cylindrical body essentially consists of a ferrule thick metal, for example based on cast or forged steel, cast iron, or a sandwich stacking of different metals; body thickness can reach several tens of centimeters and the container weight 100 to 150t.
  • the body often has fins on its outer surface to ensure better dispersion of heat in the atmosphere.
  • the fins can be fixed by bolting or welding, or be formed at the same time as the container when it is obtained by casting.
  • Thick metal body provides most of the protection biological, but is generally not sufficient to ensure the entire neutron protection.
  • Application FR 2521764 describes a particular embodiment of the type of protection using housings filled with neutron shield material, which comes to be mentioned.
  • the boxes are made up of very long profiles open longitudinally whose cross section is V-shaped at an angle obtuse summit.
  • the profiles are arranged side by side, parallel to the axis of the container and in close thermal contact with the metal shell then welded to said ferrule and between them so as to form the so-called closed cases of large length.
  • the housings are equipped with fins on their outer face.
  • these boxes After being placed on the shell, these boxes are then filled individually of neutron absorbing resin by casting by their open end.
  • the Applicant has sought a shielding device by housings more simple to carry out to reduce the cost and also to improve the safety of the operations of making the boxes, of their fixing directly on the shell and their filling with radiation absorbing material, while improving contact and thermal evacuation. She also looked for a simpler and more simple method of fitting said shielding devices sure.
  • Document DE-A-36 20 737 describes a container for transport and storage of waste radioactive.
  • This container includes an outer container foundry iron containing graphite nodules and forming a screen against gamma and neutron radiation, as well as an inner steel container, received in a cavity defined in the outer container and container a basket suitable for receiving radioactive waste.
  • a structure fulfilling a moderator function vis-à-vis the neutrons is received in an annular space formed between the two containers.
  • This structure is formed of a number of polyethylene rings segmented and superimposed, between which are placed open elements for holding said rings, made of aluminum and having an H-shaped section
  • document FR-A-2 454 157 describes a container for transport and storage of assemblies of used nuclear fuel.
  • the container includes a shielded container, around which a sheath of ribbed cooling formed from two to four elements assembled together.
  • Each of these elements includes two concentric wall sections cylindrical metal, connected together by heat conductive sleepers, so as to define longitudinal cells closed at their ends and filled with neutron absorbing material.
  • the invention is a device for protection against radiation for transport container and / or radioactive material storage, the device comprising a plurality of metal housings adjacent, filled with at least one absorbent material neutrons, each case including an inner face conformed to the outer face of the container, one side exterior and parts connecting said faces interior and exterior, characterized in that each is an independent tubular profile, in one single piece closed longitudinally, in which said parts are side faces in contact with the lateral faces of the adjacent profiles, the device further comprising means for individually fixing each of the profiles on the outside of the container.
  • the container usually includes a ferrule thick cylindrical metal of great length on the outer face of which is fixed a plurality of closed or hollow tubular profiles in one piece according to the invention.
  • Said profile typically has a cross section closed polygonal, preferably with four sides corresponding to four longitudinal faces, and can be closed at its ends. Usually it is obtained by direct spinning and does not have a longitudinal weld or other means of closure. The absence of solder longitudinal or any other means of closure equivalent guarantees the housing a perfect seal not likely to deteriorate and keeps whatever happens all of its neutron shield properties.
  • the outer face of the housing in contact with the ambient air is advantageously fitted with cooling fins spun with the profile or fixed on it by any other means.
  • the profile is filled with neutron shield material, for example by pouring into it a resin with a high hydrogen content.
  • the invention is especially advantageous when it is necessary to increase the protection against gamma radiation. It is then particularly simple to secure inside each profile constituting the housing, before their filling with resin and fixing them to the container, at least one plate metal, usually a heavy metal such as lead or its alloys, or a sandwich of plates of different metals chosen and assembled so as to simultaneously obtain optimal biological protection and good solidity of the assembly.
  • This plate is located as close as possible to the container wall, i.e. typically in contact with the wall of the profile which is supported on the ferrule.
  • a lead plate covered by a protective steel plate to facilitate its fixing; this last is usually done using bolts going through the plates of steel, lead and the wall of the case in contact with the ferrule, screwed into said ferrule.
  • Such a device makes it possible, in the event of an impact, to better retain the lead plate preventing it from coming to weigh directly on the walls of the case with the risk of deforming them.
  • the invention also relates to a method for installing a device radiation protection for transport container and / or storage of radioactive materials comprising a plurality of housings adjacent metal fixed to the outer wall of the container and container at least one neutron absorbing material characterized in that one introduces in the housing at least one biological screen material and then fixed said housing containing the biological screen material on the outer wall of said container.
  • the installation of the device according to the invention is therefore particularly simple. and can be done in two stages. First you just need to install optionally the lead plate and / or any other metal, then to sink said neutron shield material directly inside the profile; the profile thus prepared is then fixed on the shell of the container.
  • the bolting operations of the case on the ferrule can be done by lights made in the face of the profile opposite to that which is in contact with the ferrule, lights which are then properly plugged in.
  • Figure 1 illustrates the device according to the invention. It represents a container for radioactive material seen in section and the detail of a view, always in section, of two adjacent housings according to the invention.
  • Each of them essentially consists of a metal profile (5) hollow, closed longitudinally, with 4 long sides; of the cooling fins (6) are located on the outer face of said profiles.
  • the inner face (7) is conformed to the outer face of the ferrule (1) of so as to ensure good thermal contact.

Claims (10)

  1. Strahlenschutzvorrichtung für einen Behälter zum Transport und/oder zur Lagerung von radioaktiven Stoffen, umfassend eine Mehrzahl von aneinander angrenzenden Metallgehäusen (4), die mit wenigstens einem Neutronenabsorbermaterial (10) gefüllt sind, wobei jedes Gehäuse (4) eine an die Außenfläche des Behälters angepasste Innenfläche (7), eine Außenfläche sowie Teile umfasst, die die Innenfläche (7) und die Außenfläche miteinander verbinden, dadurch gekennzeichnet, dass jedes Gehäuse (4) ein unabhängiges Rohrprofil (5) aus einem einzigen, in Längsrichtung geschlossenen Stück ist, bei dem die Teile Seitenflächen sind, die mit den Seitenflächen angrenzender Profile (5) in Kontakt stehen, wobei die Vorrichtung ferner Mittel (11) zum individuellen Befestigen jedes der Profile (5) an der Außenfläche des Behälters umfasst.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass jedes Profil (5) aus einem Metall ist, welches ausgewählt ist aus der Gruppe umfassend Aluminium, Kupfer und ihre Legierungen.
  3. Vorrichtung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass jedes Profil (5) Kühlrippen (6) umfasst.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Befestigungsmittel Bolzen (11) sind.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass jedes Profil (5) wenigstens eine Metallplatte (8, 9) zum Abschirmen von Gammastrahlung enthält, die möglichst nah an der Behälterwand plaziert ist.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass jede Metallplatte (8) zum Abschirmen von Gammastrahlung aus Schwermetall ist.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das Schwermetall ausgewählt ist aus der Gruppe umfassend Blei und seine Legierungen.
  8. Behälter zum Transport und/oder zur Lagerung von radioaktiven Stoffen, umfassend eine Vorrichtung mit einer Mehrzahl von aneinander angrenzenden Metallgehäusen (4), die mit wenigstens einem Neutronenabsorbermaterial (10) gefüllt sind, wobei jedes Gehäuse (4) eine an die Außenfläche des Behälters angepasste Innenfläche (7), eine Außenfläche sowie Teile umfasst, die die Innenfläche (7) und die Außenfläche verbinden, dadurch gekennzeichnet, dass er eine Vorrichtung gemäß dem kennzeichnenden Teil eines der Ansprüche 1 bis 7 umfasst.
  9. Verfahren zum Anbringen einer Vorrichtung nach einem der Ansprüche 1 bis 7 an der Außenwand eines Behälters zum Transport und/oder zur Lagerung von radioaktiven Stoffen, dadurch gekennzeichnet, dass es wenigstens einen Schritt des Einbringens wenigstens eines biologischen Abschirmmaterials (8, 9) in jedes Gehäuse umfasst, auf den ein Schritt des Befestigens des mit biologischem Abschirmmaterial gefüllten Gehäuses an der Außenwand des Behälters folgt.
  10. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass man in das Gehäuse wenigstens eine Metallplatte (8) zum Abschirmen von Gammastrahlung einbringt, dass man anschließend das Gehäuse an der Wand befestigt, und dass man es mit Neutronenabsorbermaterial füllt.
EP99420066A 1998-03-13 1999-03-10 Strahlenschutzvorrichtung für Behälter zum Transport von radioaktiven Stoffen und Verfahren zum Aufstellen einer solchen Strahlenschutzvorrichtung Expired - Lifetime EP0942435B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9803331A FR2776118B1 (fr) 1998-03-13 1998-03-13 Dispositif de protection contre les rayonnements pour conteneur de transport de matieres radioactives
FR9803331 1998-03-13

Publications (2)

Publication Number Publication Date
EP0942435A1 EP0942435A1 (de) 1999-09-15
EP0942435B1 true EP0942435B1 (de) 2003-05-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99420066A Expired - Lifetime EP0942435B1 (de) 1998-03-13 1999-03-10 Strahlenschutzvorrichtung für Behälter zum Transport von radioaktiven Stoffen und Verfahren zum Aufstellen einer solchen Strahlenschutzvorrichtung

Country Status (7)

Country Link
US (1) US6195404B1 (de)
EP (1) EP0942435B1 (de)
JP (1) JPH11295483A (de)
CZ (1) CZ297370B6 (de)
DE (1) DE69908002T2 (de)
ES (1) ES2200486T3 (de)
FR (1) FR2776118B1 (de)

Families Citing this family (19)

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Publication number Priority date Publication date Assignee Title
EP1103984B1 (de) * 1999-06-19 2002-09-18 GNB Gesellschaft für Nuklear-Behälter mbH Transport- und/oder Lagerbehälter für radioaktive wärmeentwickelnde Elemente
JP3416657B2 (ja) * 2001-01-25 2003-06-16 三菱重工業株式会社 キャスクおよびキャスクの製造方法
JP2003344581A (ja) * 2002-05-31 2003-12-03 Hitachi Ltd 使用済燃料用キャスク及びその製造方法
JP3978210B2 (ja) * 2002-07-23 2007-09-19 三菱重工業株式会社 キャスク
EP1418594A1 (de) * 2002-11-09 2004-05-12 GNB Gesellschaft für Nuklear-Behälter mbH Transport- und/oder Lagerbehälter für wärmeentwickelnde radioaktive Elemente
US7199375B2 (en) * 2004-10-12 2007-04-03 Bard Brachytherapy, Inc. Radiation shielding container that encloses a vial of one or more radioactive seeds
US7342989B2 (en) * 2005-06-23 2008-03-11 Nac International, Inc. Apparatuses and methods for mechanical shielding and cooling
WO2008005932A2 (en) * 2006-06-30 2008-01-10 Holtec International, Inc. Apparatus, system and method for storing high level waste
US7973298B2 (en) * 2007-10-10 2011-07-05 Kobe Steel, Ltd. Transport/storage cask for radioactive material
FR2952467B1 (fr) * 2009-11-10 2011-12-23 Tn Int Emballage pour le transport et/ou entreposage de matieres radioactives conferant un transfert thermique renforce
FR2961005B1 (fr) * 2010-06-02 2015-12-11 Tn Int Emballage pour le transport et/ou entreposage de matieres radioactives, comprenant des moyens de conduction thermique ameliores
JP6655541B2 (ja) 2013-10-02 2020-02-26 ナック インターナショナル、 インコーポレイテッド 使用済み核燃料を湿式貯蔵から乾式貯蔵に移送するシステム及び方法
RU2552536C1 (ru) * 2013-12-24 2015-06-10 Открытое акционерное общество "АТОММАШЭКСПОРТ" Амортизирующее устройство транспортного упаковочного комплекса для транспортирования тепловыделяющих сборок реакторной установки
US9793021B2 (en) 2014-01-22 2017-10-17 Nac International Inc. Transfer cask system having passive cooling
RU2668558C1 (ru) * 2017-08-08 2018-10-02 Акционерное общество "Центральное конструкторское бюро машиностроения" (АО "ЦКБМ") Контейнер биологической защиты для разгрузочно-загрузочной машины
FR3080705B1 (fr) * 2018-04-27 2020-10-30 Tn Int Emballage de transport et/ou d'entreposage de matieres radioactives permettant une fabrication facilitee ainsi qu'une amelioration de la conduction thermique
RU2696017C1 (ru) * 2018-11-23 2019-07-30 Акционерное общество "Атоммашэкспорт" АО "Атоммашэкспорт" Амортизирующее устройство для перегрузки контейнеров с тепловыделяющими сборками реакторной установки (варианты)
WO2020149947A2 (en) * 2018-11-29 2020-07-23 Holtec International Spent nuclear fuel canister
FR3114907B1 (fr) * 2020-10-07 2022-12-23 Tn Int Emballage pour le transport et/ou le stockage de matieres radioactives, comprenant un dispositif de protection radiologique reduisant les risques de fuites radiologiques

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US3111586A (en) * 1961-08-25 1963-11-19 Baldwin Lima Hamilton Corp Air-cooled shipping container for nuclear fuel elements
DE2845129A1 (de) * 1978-10-17 1980-04-30 Transnuklear Gmbh Abschirmbehaelter mit neutronenabschirmung fuer den transport und/oder die lagerung abgebrannter brennelemente
DE7911030U1 (de) * 1979-04-14 1979-08-23 Transnuklear Gmbh, 6450 Hanau Abschirmbehaelter zum transport und/ oder zur lagerung abgebrannter brennelemente
DE7932527U1 (de) * 1979-11-17 1980-04-24 Transnuklear Gmbh, 6450 Hanau Transport- und/oder lagerbehaelter fuer radioaktive stoffe
FR2521764A1 (fr) * 1982-02-12 1983-08-19 Creusot Loire Dispositif de protection neutronique pour produit radio-actif
EP0116412A1 (de) * 1983-01-18 1984-08-22 Kabushiki Kaisha Kobe Seiko Sho Behälter für radioaktive Materialien und Verfahren zur Herstellung
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JP3342994B2 (ja) * 1995-08-04 2002-11-11 株式会社神戸製鋼所 放射性物質の輸送兼貯蔵用容器
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Also Published As

Publication number Publication date
FR2776118A1 (fr) 1999-09-17
EP0942435A1 (de) 1999-09-15
FR2776118B1 (fr) 2000-06-09
DE69908002T2 (de) 2004-04-01
DE69908002D1 (de) 2003-06-26
CZ85799A3 (cs) 1999-09-15
ES2200486T3 (es) 2004-03-01
JPH11295483A (ja) 1999-10-29
US6195404B1 (en) 2001-02-27
CZ297370B6 (cs) 2006-11-15

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