EP2827336A1 - Récipient de transport et/ou de stockage - Google Patents

Récipient de transport et/ou de stockage Download PDF

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Publication number
EP2827336A1
EP2827336A1 EP20130176522 EP13176522A EP2827336A1 EP 2827336 A1 EP2827336 A1 EP 2827336A1 EP 20130176522 EP20130176522 EP 20130176522 EP 13176522 A EP13176522 A EP 13176522A EP 2827336 A1 EP2827336 A1 EP 2827336A1
Authority
EP
European Patent Office
Prior art keywords
container
transport
shielding jacket
thermal insulation
storage container
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
EP20130176522
Other languages
German (de)
English (en)
Other versions
EP2827336B1 (fr
Inventor
Roland Hüggenberg
Linus Dr. Bettermann
Margarete Kustosz
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.)
GNS Gesellschaft fuer Nuklearservice mbH
Original Assignee
GNS Gesellschaft fuer Nuklearservice mbH
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 GNS Gesellschaft fuer Nuklearservice mbH filed Critical GNS Gesellschaft fuer Nuklearservice mbH
Priority to EP13176522.4A priority Critical patent/EP2827336B1/fr
Priority to ES13176522.4T priority patent/ES2556904T3/es
Publication of EP2827336A1 publication Critical patent/EP2827336A1/fr
Application granted granted Critical
Publication of EP2827336B1 publication Critical patent/EP2827336B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
    • 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
    • G21F5/06—Details of, or accessories to, the containers
    • G21F5/10—Heat-removal systems, e.g. using circulating fluid or cooling fins

Definitions

  • the invention relates to a transport and / or storage container for receiving radioactive components, in particular of radioactive waste, - with container bottom, container casing and container lid, wherein container inside a ⁇ -shielding jacket is arranged.
  • the radioactive components or radioactive wastes are received in a container interior of the container, which container interior is surrounded by the container bottom, the container jacket and the container lid of the container.
  • Transport and / or storage containers of the aforementioned type are known from practice in different embodiments.
  • the container-side provided ⁇ shielding jacket of these containers is usually made of lead or essentially of lead.
  • lead or essentially of lead.
  • the container interior and the container inventory obtained therein can be exposed to unacceptably high temperatures.
  • the ⁇ -shielding coat of lead can also melt at these high temperatures. Then an effective shield with respect to the recorded radioactive components or radioactive waste components is no longer given.
  • the invention addresses the technical problem of specifying a transport and / or storage container of the type mentioned, in which the disadvantages can be avoided and in which the container interior or the container inventory taken therein before high temperatures or inadmissibly high temperatures can be protected.
  • This protection is intended in particular in the event of a malfunction of outside temperatures of 800 ° C over a period of at least one hour.
  • the invention provides a transport and / or storage container for holding radioactive components, in particular radioactive waste, with the container bottom, container casing and container lid, wherein a ⁇ shielding jacket is arranged inside the container, which ⁇ shielding jacket is preferably made of lead or substantially consists of lead, wherein the ⁇ -shielding jacket is arranged at a distance from the walls of the container and in particular at a distance from the container shell and wherein at least between the container jacket and ⁇ -shielding jacket at least one thermal insulation layer is arranged, wherein the thermal insulation layer the proviso is designed that a heat transfer from the outside of the container to the container inner side is at least reduced to the extent that a melting and / or decomposition of the ⁇ -shielding shell or the material of the ⁇ -shielding jacket is avoided bz w. not taking place.
  • radioactive components or radioactive waste are transported and / or stored in the container according to the invention.
  • the radioactive components or waste are also referred to here as a container inventory or inventory of the container.
  • Container bottom, container casing and container lid of the container according to the invention are characterized here and below with the term container components.
  • the container is cylindrical and preferably the container components consist of a metallic material or substantially of a metallic material.
  • the lowest possible heat transfer from the outside of the container to the inside of the container should take place, in particular in the event of a fault with high outside temperatures.
  • the heat transfer from outside to inside should therefore be significantly reduced.
  • an internal thermal insulation layer is realized, which is preferably arranged on the container shell and the container bottom.
  • a lid arrangement with at least one inner lid and at least one outer lid is provided as the container lid.
  • the container casing and / or the container bottom to have a thickness of from 100 to 200 mm, preferably from 130 to 190 mm, and preferably a thickness of from 140 to 180 mm.
  • the ⁇ -shielding jacket or provided for ⁇ -shielding lead jacket has a maximum thickness of 90 to 150 mm, preferably from 100 to 140 mm and more preferably from 110 to 130 mm.
  • the thickness of the ⁇ -shielding jacket may be, for example, 120 mm or approximately 120 mm.
  • non-heat-generating radioactive components or waste are added in the container or in the container interior of the container. It is also within the scope of the invention that no fuel or spent fuel in the container or in the container interior are added.
  • the thermal insulation layer is designed with the proviso that at an ambient temperature of 700 ° C to 900 ° C, especially at an outside temperature of 800 ° C or about 800 ° C no melting or decomposition of the ⁇ -Ableungsmantels or the material of the ⁇ -shielding shell takes place.
  • the thermal insulation layer is designed primarily with the proviso that in case of failure - especially in a broken fire - at a temperature of at least one hour acting temperature of 800 ° C or about 800 ° C no melting or no decomposition of the ⁇ -shielding mantle.
  • the measures according to the invention are realized in particular with the proviso that a critical pressure of 15 bar or about 15 bar in the container interior is not exceeded. It is also within the scope of the invention that the temperature in the container interior remains below or below the melting point of lead as much as possible, namely below or significantly below 327.5 ° C.
  • d is the thickness or the radial thickness of the insulating layer.
  • the thermal insulation layer according to the invention is arranged between all container components and the ⁇ -shielding jacket.
  • the thermal insulation layer is arranged at least between the container casing and the ⁇ -shielding casing and between the container bottom and the ⁇ -shielding casing.
  • the features and measures mentioned for insulation on the container shell expediently also apply to the insulation of the other container components.
  • the ⁇ -shielding jacket preferably completely encloses or virtually completely encloses the interior space for accommodating the radioactive components or for receiving the radioactive waste.
  • the thickness or radial thickness of the thermal insulation layer is less than 50 mm, preferably less than 45 mm, more preferably less than 40 mm and particularly preferably less than 35 mm.
  • the thickness or the radial thickness of the thermal insulation layer preferably corresponds to the distance or the radial distance between the container components and the ⁇ -shielding jacket.
  • the thickness or the radial thickness of the thermal insulation layer is at least 4 mm, preferably at least 5 mm and particularly preferably at least 6 mm.
  • container components means the container casing, the container bottom and the container lid. It is recommended that between the container components and the ⁇ -shielding shell or between the container shell and / or between the container bottom and / or between the container lid and the ⁇ -shielding shroud a plurality of the distance between the container component and ⁇ -shielding sheath ensuring spacers is arranged. Expediently, at least one thermal insulation material and / or at least one thermal insulation space is arranged in the gap between the container component or between the container components and the ⁇ -shielding jacket in the areas between the spacers. The terms thermal insulation material and thermal insulation space will be explained below.
  • between the container casing and the ⁇ -shielding jacket and / or between the container bottom and the ⁇ -shielding jacket and / or between the container lid or the container lid assembly and the ⁇ -shielding jacket each have a plurality or a plurality of Spacers are provided.
  • the spacers are over the gap between the container component and the Distributed ⁇ shielding arranged distributed, preferably arranged evenly distributed.
  • the spacers are connected to at least one planar spacer element and that the spacers protrude from this planar spacer element, preferably protrude in the direction of the ⁇ -shielding jacket and preferably rest against the ⁇ -shielding jacket. It is also within the scope of the invention that the spacers are components of the planar spacer element and expediently consist of the same material as the planar spacer element or consist essentially of the same material as the planar spacer element.
  • An embodiment variant of the invention is characterized in that a plurality of planar spacer elements or a plurality of adjoining or adjoining planar spacer elements are used to realize the spacing between the container component or between the container components and the gamma shielding jacket.
  • a planar spacer element can extend over half the distance space between the container jacket and the ⁇ shielding jacket
  • a second planar spacer element can extend over the second half of the spacer space between the container jacket and the ⁇ shielding jacket.
  • a particularly preferred embodiment of the invention is characterized in that the planar spacer at least partially on the inside or on the inner surface of at least one container component (container casing and / or container bottom and / or container lid) rests or rests flat. Furthermore, it is within the scope of the invention that the spacers from the flat spacer or from the flat Projecting spacer elements in the direction of ⁇ shielding jacket and preferably abut the ⁇ -shielding jacket.
  • the spacers are punched or bent out of this spacer plate or metal sheet.
  • the metal sheet is preferably a metal sheet made of stainless steel or stainless steel. It is within the scope of the invention that the spacers are formed as profiles of the spacer plate or metal sheet. Preferably, the spacers are punched nubs. According to a recommended embodiment of the invention, the spacers or nubs are formed pyramid-shaped or truncated pyramid.
  • the spacers or knobs are realized in at least one embodiment from the group "prism-shaped, conical, hemispherical, spherical segment-shaped, cylindrical-shaped, parallelepiped-shaped, lenticular".
  • the spacers can also be designed in the form of shafts, and the spacer sheet or metal sheet is then preferably formed as a corrugated sheet. It is within the scope of the invention that the thickness of the spacer plate or metal sheet is chosen as small as possible.
  • the thickness of the spacer sheet or metal sheet according to a preferred embodiment of the invention 0.3 to 2.5 mm, preferably 0.4 to 1.5 mm.
  • a plurality of spacer plates or metal sheets may adjoin one another or be arranged next to one another.
  • a recommended embodiment of the invention is characterized in that the spacers rest against the ⁇ -shielding jacket, in particular with their spacer tips or with their spacer maxima.
  • the ratio of the total support surface of the spacers to the remaining surface of the planar spacer element or the planar spacer elements is at most 1:10, preferably at most 0.5: 10 and particularly preferably at most 0.25: 10.
  • the individual support surfaces of the spacers are added to the entire support surface of the spacers. It is within the scope of the invention that the preferred area ratios given above also separately for the at least one disposed between the container shell and the ⁇ -shielding sheath spacer and / or for at least one arranged between the container bottom and the ⁇ -shielding sheath spacer and / or for the at least one arranged between the container lid and ⁇ shielding sheath spacer apply.
  • At least one thermal insulation space and / or at least one thermal insulation material is arranged between the spacers and in the region between the respective container component or between the container components and the ⁇ -shielding jacket.
  • the thermal insulation material between the spacers - and between the container components and the ⁇ -shielding jacket - consists of a gas or substantially of a gas and preferably of air or substantially of air.
  • a vacuum or, as it were, a vacuum could also be arranged as a thermal insulation space in the areas between the spacers.
  • the thermal insulation layer between a container component or between the container components and the ⁇ -shielding jacket consists of a solid thermal insulation material, preferably at least 50% of the volume between the container component or between the container components and the ⁇ shielding sheath fills.
  • the thermal insulation material between the container component or between the container components and the ⁇ -shielding jacket consists of at least one fiber material or essentially of at least one fiber material. In principle, this thermal insulating material or the fiber material could also be combined with the above-described two-dimensional spacer elements or spacer plates. It is within the scope of the invention that between the fibers of the fiber material gas-filled or air-filled spaces or gaps are present.
  • the thermal insulation material of fiber cement boards or the like material or substantially of fiber cement boards or the like material could also consist of glass fibers, natural fibers or the like.
  • the fiber material or the fiber cement plates have a thermal conductivity of 0.3 to 0.5 W / mK, preferably from 0.35 to 0.45 W / mK and particularly preferably 0.4 W / mK or from about 0.4 W / mK.
  • the density of the thermal insulation material or the density of the fiber material / the fiber cement boards is 1200 to 2000 kg / m 3 and preferably 1400 to 1800 kg / m 3 .
  • the invention is based on the finding that, with the transport and / or storage container according to the invention or with the insulation measures according to the invention, the heat transfer from the outside of the container to the inside of the container or to the inside of the container can be significantly reduced.
  • the temperature on the inside of the container or in the container interior to a certain unbe-minded by the inventive measures Limit be reduced.
  • the container inventory and / or the vessel installations can be protected from unacceptably high temperatures.
  • isolation or thermal insulation according to the invention can be implemented with relatively simple, inexpensive and cost-effective measures.
  • the thermal insulation layer realized according to the invention can at the same time also serve as a support structure between container components and ⁇ -shielding jacket.
  • the figures show a transport and / or storage container according to the invention for receiving not shown radioactive components, in particular of radioactive waste.
  • the container has a container bottom 1, a container casing 2 and a container lid arrangement with an inner container lid 3 and with an outer container lid 4.
  • Container bottom 1, container casing 2 and the container lid 3, 4 are expediently and in the exemplary embodiment made of metallic material.
  • a ⁇ -shielding jacket 5 is arranged, which in a known manner serves for shielding ⁇ -rays from the interior of the container.
  • the ⁇ -shielding jacket 5 has a bottom component 6, a jacket component 7 and a cover component 8.
  • the ⁇ -shielding jacket or the bottom component 6, the jacket component 7 and the cover component 8 of the ⁇ -shielding jacket 5 enclose the container interior 9, in which the radioactive components, in particular the radioactive wastes, are accommodated.
  • the components or external components of the container ie the container bottom 1, the container casing 2 and the lid assembly 3, 4 are also referred to briefly as container components.
  • the ⁇ -shielding jacket 5 is arranged at a distance from the container components 1, 2 and 3, so that there is a gap 10 between the ⁇ -shielding jacket 5 and the container components 1, 2, 3.
  • a thermal insulation layer 11 according to the invention arranged.
  • This thermal insulation layer 11 is designed with the proviso that a heat transfer from the outside of the container to the container inner side is reduced at least to the extent that a melting of the lead ⁇ -shielding jacket 5 is avoided.
  • the container casing 2 and the container bottom 1 may have a thickness of 160 mm in the embodiment.
  • the thickness of the lead ⁇ shielding jacket 5 is 120 mm in the exemplary embodiment.
  • the thermal insulation layer 11 is designed with the proviso that no melting of the ⁇ -shielding jacket 5 made of lead occurs in an accident when exposed to an outside temperature of 800 ° C or about 800 ° C over a period of at least one hour , In this case, the melting point of the lead under normal conditions in the amount of 327.5 ° C is taken into account.
  • the distance a between the container components 1 and 2 and the ⁇ -shielding jacket 5 is less than 40 mm and preferably significantly less than 40 mm. In the embodiment, the distance may be a 20 mm. Preferably and in the exemplary embodiment, this distance a between the container components 1, 2, 3 and the ⁇ -shielding jacket 5 is at least 3 mm, preferably at least 5 mm.
  • a plurality of spacers 12 ensuring the spacing a is arranged between the container components 1, 2, 3 and the ⁇ -shielding jacket 5.
  • the spacers 12 are preferred and in the embodiment part of a flat spacer element in the form of a metal sheet 13 made of stainless steel.
  • the spacers 12 are preferably and in the exemplary embodiment punched out of the metal sheet 13 in the form of knobs. This is in particular on the Fig. 2 to refer.
  • the metal sheet 13 is on the inside or inner surface of the container components 1 and 2 and the spacers 12 or studs collar of the metal sheet 13 in the direction of the ⁇ -shielding container 5 and lie with their tips on the ⁇ Shielding jacket 5 ( Fig. 1 ). In the areas between the spacers 12 and knobs are preferred for thermal insulation and in the embodiment, air-filled spaces.
  • air is arranged as a thermal insulation material between the spacers 12.
  • a multiplicity of flat spacer elements or metal sheets 13 can be combined or connected to one another.
  • two cylindrical metal sheets 13 of semicircular cross-section may be combined in the case of a cylindrical design of the container.
  • container bottom 1 and ⁇ -shielding jacket 5 separate metal sheets 13 and at least one separate metal sheet 13 may be provided.
  • the pyramid-shaped spacer holders 12 abut with their pyramid tips on the ⁇ -shielding jacket 5 or are supported on the ⁇ -shielding jacket 5.
  • the entire support surface of these spacers 12 is small compared to the remaining surface of the metal sheet 3.
  • the remaining surface of the metal sheet 13 is at least ten times, preferably at least twenty times, compared to the entire support surface.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Ceramic Engineering (AREA)
  • Metallurgy (AREA)
  • Packages (AREA)
EP13176522.4A 2013-07-15 2013-07-15 Récipient de transport et/ou de stockage Not-in-force EP2827336B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13176522.4A EP2827336B1 (fr) 2013-07-15 2013-07-15 Récipient de transport et/ou de stockage
ES13176522.4T ES2556904T3 (es) 2013-07-15 2013-07-15 Contenedor de transporte y/o almacenamiento

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13176522.4A EP2827336B1 (fr) 2013-07-15 2013-07-15 Récipient de transport et/ou de stockage

Publications (2)

Publication Number Publication Date
EP2827336A1 true EP2827336A1 (fr) 2015-01-21
EP2827336B1 EP2827336B1 (fr) 2015-10-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13176522.4A Not-in-force EP2827336B1 (fr) 2013-07-15 2013-07-15 Récipient de transport et/ou de stockage

Country Status (2)

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EP (1) EP2827336B1 (fr)
ES (1) ES2556904T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3062313A1 (fr) * 2015-02-26 2016-08-31 GNS Gesellschaft für Nuklear-Service mbH Récipient de réception de matériel d'exploitation radioactif et procédé de fabrication du récipient
WO2022179640A1 (fr) * 2021-04-19 2022-09-01 中广核工程有限公司 Dispositif de protection contre les rayonnements et d'isolation thermique
WO2024059562A1 (fr) * 2022-09-13 2024-03-21 Holtec International Système de transport de matériaux radioactifs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466662A (en) * 1964-10-21 1969-09-09 Lyonnaise De Plomberie Ind Soc Fireproof shielded containers for radioactive materials
GB1250852A (fr) * 1969-07-26 1971-10-20
US4783309A (en) * 1986-06-20 1988-11-08 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh Double container system for transporting and storing radioactive materials
US20090114856A1 (en) * 2007-10-10 2009-05-07 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.) Transport/storage cask for radioactive material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466662A (en) * 1964-10-21 1969-09-09 Lyonnaise De Plomberie Ind Soc Fireproof shielded containers for radioactive materials
GB1250852A (fr) * 1969-07-26 1971-10-20
US4783309A (en) * 1986-06-20 1988-11-08 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh Double container system for transporting and storing radioactive materials
US20090114856A1 (en) * 2007-10-10 2009-05-07 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.) Transport/storage cask for radioactive material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3062313A1 (fr) * 2015-02-26 2016-08-31 GNS Gesellschaft für Nuklear-Service mbH Récipient de réception de matériel d'exploitation radioactif et procédé de fabrication du récipient
CN105931690A (zh) * 2015-02-26 2016-09-07 Gns核能服务有限公司 用于盛放放射性物品的容器以及这种容器的制造方法
EP3062313B1 (fr) 2015-02-26 2017-02-01 GNS Gesellschaft für Nuklear-Service mbH Récipient de réception de matériel d'exploitation radioactif et procédé de fabrication du récipient
WO2022179640A1 (fr) * 2021-04-19 2022-09-01 中广核工程有限公司 Dispositif de protection contre les rayonnements et d'isolation thermique
WO2024059562A1 (fr) * 2022-09-13 2024-03-21 Holtec International Système de transport de matériaux radioactifs

Also Published As

Publication number Publication date
EP2827336B1 (fr) 2015-10-28
ES2556904T3 (es) 2016-01-20

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