EP4505490B1 - Verpackung mit verpackung zum transport und/oder zur lagerung von radioaktivem inhalt mit einem kompakten internen stossabsorptionssystem - Google Patents

Verpackung mit verpackung zum transport und/oder zur lagerung von radioaktivem inhalt mit einem kompakten internen stossabsorptionssystem

Info

Publication number
EP4505490B1
EP4505490B1 EP23719825.4A EP23719825A EP4505490B1 EP 4505490 B1 EP4505490 B1 EP 4505490B1 EP 23719825 A EP23719825 A EP 23719825A EP 4505490 B1 EP4505490 B1 EP 4505490B1
Authority
EP
European Patent Office
Prior art keywords
damping device
radioactive
damping
axial
package
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.)
Active
Application number
EP23719825.4A
Other languages
English (en)
French (fr)
Other versions
EP4505490A1 (de
Inventor
Mathieu ALONSO
Clément BOSONE
Kelly POTTIER
Michel SOLLACARO
Juliette VUONG
Axel ANICET
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.)
Orano Nuclear Packages and Services SAS
Original Assignee
Orano Nuclear Packages and Services SAS
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 Orano Nuclear Packages and Services SAS filed Critical Orano Nuclear Packages and Services SAS
Publication of EP4505490A1 publication Critical patent/EP4505490A1/de
Application granted granted Critical
Publication of EP4505490B1 publication Critical patent/EP4505490B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G21F5/06—Details of, or accessories to, the containers
    • G21F5/08—Shock-absorbers, e.g. impact buffers for containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/107—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using blocks of shock-absorbing material

Definitions

  • the present invention relates to the field of packages of radioactive materials, comprising packaging and radioactive contents housed in a containment enclosure defined by the packaging.
  • the packaging may be of the type comprising a removable lid, such as, for example, used for the transport of nuclear fuel assemblies.
  • a removable lid such as, for example, used for the transport of nuclear fuel assemblies.
  • it may be of the carton or container type, in which the lid is preferably permanently fixed to the side of the packaging, for example by welding.
  • the radioactive content includes a storage device as well as one or more radioactive elements, the latter being able to be nuclear fuel assemblies, preferably fresh, containers/casings of vitrified waste or technological waste, containers/casings of shells and end caps, or cases for the transport of powder (PuO2 powder for example).
  • the invention relates more specifically to an internal shock-absorbing system, housed axially within the containment structure between the radioactive contents and an axial sealing element of the packaging, namely its lid or base.
  • a shock-absorbing system is preferably associated with the packaging lid to protect the integrity of the containment structure in the event of an axial fall of the package.
  • an internal shock-absorbing system may also, or alternatively, be provided in association with the base of the packaging.
  • a radioactive material storage and/or transport package generally consists of a sealed outer casing with a side body, a base, and a lid. These parts of the package define a cavity, known as a containment chamber, for housing radioactive contents, such as a storage device containing nuclear fuel assemblies.
  • the storage device is usually called a storage basket. It has one or more axial compartments, each designed to hold a radioactive element, namely a nuclear fuel assembly in the example given above. In other cases, where the radioactive elements are casings and/or containers, several of them can be stacked axially in each compartment of the storage basket.
  • the safety demonstration of the packaging containing radioactive material is based primarily on regulatory drop tests.
  • the radioactive material can move axially within the packaging cavity towards the lid due to a functional gap between the radioactive material and the lid.
  • the shock-absorbing head cover compresses, the radioactive material can then impact the lid during this axial drop.
  • This generates significant, delayed forces in the closure system of the removable packaging lid, due to the effect of the radioactive material inside the containment structure.
  • the lid fastening device is subjected to considerable stress; this device may, for example, be made using screws or a bayonet fitting.
  • an internal shock-absorbing system located within the containment structure, between the lid and the radioactive contents. This system is also known as an internal shock-absorbing system.
  • such a system includes one or more plastic deformation damping devices, such as metallic foam.
  • plastic deformation damping devices such as metallic foam.
  • numerous solutions have already been proposed in previous designs.
  • the maximum decelerations that the storage basket and the radioactive materials inside it can withstand are taken into account.
  • the lower of the two maximum decelerations is used for the design of the damper, in addition to other criteria such as the need to absorb all the potential energy of the radioactive contents in the event of an axial fall, without risk of the damping system bottoming out, or the need to limit the forces transmitted by the radioactive contents to the lid's fastening mechanism.
  • JP 2015 087324 A The relevant prior art is described in JP 2015 087324 A .
  • Each independent damping device can thus be precisely designed to improve the overall compactness.
  • the invention is based on the observation that radioactive elements can withstand greater decelerations than the storage device that houses them, or vice versa.
  • the associated second damping device can therefore exhibit a greater crushing force, or a larger active surface area, and thus adopt a lower axial height, resulting in a smaller footprint and greater compactness.
  • the invention preferably provides for the implementation of one or more of the following optional features, taken individually or in combination.
  • / min ( ⁇ 2 , ⁇ 1 ) is greater than 1.1.
  • the internal damping system includes one or more secondary plastic deformation damping devices, each associated with a separate radioactive assembly consisting of one or more other radioactive elements.
  • the first and second parameters of the first and second damping devices being such that the second representative value of deceleration ⁇ 2 associated with each of at least several second damping devices, and preferably with each of all these second damping devices, is different from the first representative value of deceleration ⁇ 1 associated with the first damping device.
  • the radioactive assembly associated with the second damping device, or with each second damping device consists of a single radioactive element.
  • each radioactive element is a nuclear fuel assembly, preferably a fresh fuel assembly, even more preferably of the MOX type, or a container/casing for vitrified waste or technological waste, or a container/casing for casings and end caps, or a casing for transporting powder.
  • the second damping device(s) consist of a single block of damping material, preferably metallic foam, wood, honeycomb, or a tubular metallic structure.
  • each second damping device may comprise several blocks spaced apart and functioning independently in the event of an axial fall of the package. In all cases, for the damping of the radioactive elements, all blocks preferably exhibit the same crushing stress.
  • the first damping device consists of several blocks of damping material spaced apart, preferably made of foam, wood, honeycomb, or a tubular metal structure. All these damping blocks associated with the storage device preferably have the same crushing stress.
  • the first damping device could be formed from a single block of damping material.
  • the aforementioned blocks are cylindrical, or pyramidal in shape.
  • the crushing stress ⁇ 2 of the first or each second damping device is different from the crushing stress ⁇ 1 of the first damping device.
  • identical crushing stresses may be used for the first and second damping devices without departing from the scope of the invention.
  • the differentiating decelerations of the entities are controlled by the extent of the active surfaces of the first and second damping devices, or by the masses of the storage device and each radioactive assembly.
  • the first damping device and each subsequent damping device(s) have the same or nearly the same axial thickness.
  • a thickness variation of up to 10% between the largest and smallest values may be tolerated.
  • the first damping device and the second damping device(s) are arranged in the same transverse plane of the package.
  • the first damping device and the second damping device(s) are arranged in the same envelope.
  • the storage device has a perforated head plate, and the internal shock-absorbing system is preferably attached to this perforated head plate.
  • the internal shock-absorbing system can be attached to the associated axial sealing element, for example, the packaging lid, or simply be freely positioned between the storage basket and this associated axial sealing element.
  • the associated axial sealing element is the packaging lid, preferably removably mounted on the side of the packaging.
  • the associated axial sealing element is the base of the packaging. Indeed, even if there is no issue of securing the screws of the closure system on the base side, controlling deceleration in the event of an axial fall on the base side may also need to be considered in certain situations.
  • FIG. 1 With reference first and foremost to the figure 1 , it is represented a package 100 for storage and/or transport of radioactive content 12, in the form of a preferred embodiment of the present invention.
  • the package 100 comprises, firstly, a package 1 having a side body 2, a base 4 and a removable lid 6 closing an opening in the package opposite the base 4.
  • the package has a central longitudinal axis 8 around which the body extends
  • this axis 8 passing through the lid 6 and the base 4 respectively arranged at the front and rear ends of the lateral packaging body 2.
  • the base 4 can be made in one piece with the body side of packaging 2.
  • the lid 6 is attached to the front end of the side body 2, corresponding to the upper end in the vertical position of the packaging shown in the figure 1 .
  • the fixing of this cover 6 is preferably achieved using screw elements 14, distributed around the periphery of the cover.
  • the lateral body 2, the cover 6 and the bottom 4 define a containment enclosure 10 used to house the radioactive content 12.
  • the cover 6 and the bottom 4 thus form the two opposing axial sealing elements of the containment enclosure 10.
  • the radioactive content 12, also centered on axis 8, comprises a storage device and one or more radioactive elements, here nuclear fuel assemblies, preferably fresh such as MOX fuel.
  • the radioactive elements as defined by the invention could alternatively be vitrified waste containers/casings, shell and end cap containers/casings, or powder transport casings.
  • the containers/casings housed within the storage device are also leak-proof.
  • the packaging can be equipped with shock-absorbing covers 20 protecting respectively the removable cover 6 and the base 4 of the packaging.
  • Packaging 1 is also equipped with an internal shock-absorbing system 22 specific to the invention, shown only schematically on the figure 1
  • This internal damping system 22 is housed within the containment enclosure 12, axially between an internal surface 24 of the lid 6 and an axial end surface 26 of the radioactive content 12.
  • the internal damping system 22 is fixed to the axial end surface 26 of the radioactive content 12, for example, by means of screws or by welding. Alternatively, it could be fixed to the internal surface 24 of the lid 6, or freely arranged between the radioactive content 12 and the lid 6.
  • the internal damping system 22 can be arranged in several ways between the radioactive content 12 and its associated axial sealing element, formed by the removable cover 6.
  • the figure represents the radioactive content 12, comprising the storage device/basket 30 and the nuclear fuel assemblies 32a-32f.
  • Each of these assemblies 32a-32f is arranged in a compartment 34 defined by the basket 30.
  • the compartments 34 are axially open at a perforated end plate 36 of the basket, to which the internal damping system is intended to be attached.
  • the perforated end plate 36 thus forms the axial end of the compartments 34.
  • the axial end surface 26 of the radioactive content 12 is therefore formed by the flat outer surface of the end plate 36 and by the axial end surface of the assemblies 32a-32f located near or in the same plane as the flat outer surface of the end plate 36.
  • each nuclear fuel assembly 32a-32f thus forms, within the meaning of the claimed invention, a radioactive assembly composed of a single radioactive element (the assembly as such).
  • the first damping device 40 is formed here of several cylindrical blocks 40a-40e distributed around the periphery of the generally cylindrical damping system 22, centered on the axis 8.
  • Each of the blocks 40a-40e is thus cylindrical with its axis orthogonal or substantially orthogonal to the flat outer surface 26 of the head plate 36, in the direction of which these blocks are oriented.
  • These blocks are spaced apart from each other and are preferably made of foam, wood, honeycomb, or other materials. of a tubular metallic structure, preferably with the same crushing stress ⁇ 1 (in MPa).
  • the active surface S1 (in m2 ) of the first damping device 40 corresponds to the surface area of the blocks 40a-40e intended to be axially impacted by the flat outer surface 26 of the head plate 36, in the event of an axial fall of the package. More precisely, this active surface S1 corresponds to the sum of the active surfaces S1a - S1e of all the blocks 40a-40e forming the first damping device 40. These surfaces S1a - S1e correspond to the lower axial ends of the blocks 40a-40e, and they are very preferably all flat or substantially flat, orthogonal or substantially orthogonal to the axis 8, and coplanar.
  • each active surface S 1a -S 1e corresponds to the projected surface of the lower axial end of the block concerned, in a plane orthogonal to axis 8, and along the direction of this same axis.
  • each active surface S1a - S1e also corresponds, in terms of size and shape, to any cross-section of its corresponding block 40a-40e.
  • the blocks could have a pyramidal shape, in which case the active surfaces could vary according to the block's thickness, thus generating lower decelerations at the beginning of the impact.
  • the general principle of the invention according to which the first and second parameters are such that the second representative deceleration value ⁇ 2 is different from the first representative deceleration value ⁇ 1 , is verified at every instant during an axial fall of the package, causing the radioactive assembly to plastically crush the first and second damping devices.
  • active surfaces are schematically represented on the cross-section of the figure 6 taken in the plane of these surfaces or in close proximity, orthogonally to axis 8, and also partly visible on the figure 7 .
  • the mass M 1 (in kg) corresponds to the mass of the basket 30 intended to be damped by the first damping device 40.
  • the value of ⁇ 1 is determined, corresponding to a first representative value of the deceleration of basket 30 in case of axial fall of the package causing this basket to plastically crush the first damping device 40.
  • the internal damping system 22 also includes several secondary damping devices 50a-50f, each associated with one of the assemblies 32a-32g to dampen it in the event of an axial fall of the package.
  • the secondary damping devices 50a-50f are independent of each other, and also independent of the blocks of the first damping device 40. Consequently, in the event of an axial fall of the package, each of these elements deforms plastically and freely, without being hindered by the deformation of other elements located at a distance. This independence of the blocks during crushing is achieved in particular due to the absence of a load distribution plate, which is found in some prior art solutions and is usually placed between the damping systems and the radioactive contents.
  • each secondary damping device 50 is formed here of a single cylindrical block 50a-50f, the blocks being distributed around the periphery and center of the damping system 22, in the same distribution as that of the assemblies 32a-32f.
  • the blocks 50a-50f are thus cylindrical with axes orthogonal or substantially orthogonal to the flat outer surface 26 of the head plate 36, as well as to the axial end surface of the nuclear fuel assemblies in the direction of which these blocks 50a-50f are oriented, respectively.
  • the blocks 50a-50f are spaced apart from each other, and also spaced apart from the blocks of the first damping device 40. They are preferably made of foam, wood or honeycomb, preferably with the same crushing stress ⁇ 2 (in MPa), itself preferably different from the aforementioned crushing stress ⁇ 1 .
  • each second damping device 50a-50f corresponds to the surface area of the block intended to be axially supported against the The axial end surface of the associated assembly 32a-32f, in the event of an axial fall of the package.
  • This surface S2 is therefore formed by the lower axial end of the shock absorber block 50a-50f, which is very preferably planar or substantially planar, orthogonal or substantially orthogonal to axis 8. All active surfaces S2 are, moreover, preferentially coplanar.
  • the active surface S2 corresponds to the projected surface of the lower axial end of this block, in a plane orthogonal to axis 8, and along the direction of this same axis.
  • the active surface S 2 also corresponds, in terms of size and shape, to any cross-section of its corresponding block 50a-50f. In axial view, this active surface S 2 also preferably corresponds, in size and shape, to that of the axial end surface of the associated assembly 32a-32f, a perfect or near-perfect correspondence being sought between these two surfaces, in the direction of the axis 8. Nevertheless, the active surface S 2 could be smaller or larger, without departing from the scope of the invention.
  • the active surfaces S2 are schematically represented on the cross-section of the figure 6 taken in the plane of these surfaces or in close proximity, orthogonally to axis 8, and one of them is also visible on the figure 7 .
  • the mass M 2 (in kg) corresponds to the mass of each nuclear fuel assembly 32a-32f, intended to be damped by the second damping device 50a-50f located axially opposite it.
  • the first and second parameters mentioned above are advantageously chosen such that the second representative value of deceleration ⁇ 2 is different from the first representative value of deceleration ⁇ 1 .
  • / min ( ⁇ 2 , ⁇ 1 ) is preferentially greater than 1.1.
  • blocks 40a-40e and 50a-50f lie in the same transverse plane of the package, with an identical or substantially identical axial thickness.
  • blocks 50a-50f could alternatively have a greater axial thickness than blocks 40a-40e by extending axially into the basket's housings through the openings in the perforated head plate 36.
  • This casing 54 can be made using two half-casings 54a, 54b welded at a mid-axial portion of the system 22 and closed at its two axial ends by two disc-shaped plates 58a, 58b, these half-casings also being visible on the figures 4 And 5
  • the closure plate 58b positioned opposite/in contact with the radioactive contents, remains thin in order to maintain the independent operation of the various plastic deformation damping blocks 40a-40e, 50a-50f.
  • this plate 58b does not function as a load distribution plate in the event of an axial fall of the package.
  • the active surfaces S1 , S2 of the blocks 40a-40e, 50a-50f are designed to be in contact with the inner surface of the plate 58b, even though axial clearances have been maintained in the representation of the figure 7 , for the sake of clarity.
  • the packaging 1 could include a fixed lid, for example welded to the side of the packaging, so as to form a sealed casing enclosing the basket and radioactive elements, this casing also being referred to as a "canister".
  • the internal shock-absorbing system according to the invention could be associated with the base 4 of the packaging, without departing from the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Mechanical Engineering (AREA)
  • Buffer Packaging (AREA)
  • Packages (AREA)

Claims (13)

  1. Paket (100), umfassend einen radioaktiven Inhalt (12) sowie eine Verpackung (1) zum Transport und/oder zur Lagerung dieses Inhalts (12), wobei die Verpackung einen seitlichen Körper (2), der sich um eine Längsmittelachse (8) der Verpackung erstreckt, sowie einen Boden (4) und einen Deckel (6) umfasst, die jeweils an den axialen Enden des seitlichen Verpackungskörpers (2) angeordnet sind und zwei axiale Verschlusselemente bilden, die zusammen mit dem seitlichen Verpackungskörper einen Sicherheitsbehälter (10) begrenzen, in dem der radioaktive Inhalt (12) untergebracht ist, wobei die Verpackung auch ein inneres Dämpfungssystem (22) enthält, das in dem Sicherheitsbehälter (10) untergebracht ist und axial zwischen dem radioaktiven Inhalt (12) und einem der beiden axialen Verschlusselemente, das als zugehöriges axiales Verschlusselement bezeichnet wird, angeordnet ist, wobei der radioaktive Inhalt (12) eine Aufbewahrungsvorrichtung (30) sowie ein oder mehrere radioaktive Elemente (32a-32f) umfasst, wobei die Aufbewahrungsvorrichtung eine oder mehrere axiale Aufnahmen (34) begrenzt, die axial in Richtung des zugehörigen axialen Verschlusselements (6) geöffnet sind und in denen jeweils mindestens ein radioaktives Element (32a-32f) angeordnet ist,
    wobei das innere Dämpfungssystem (22) eine erste Dämpfungsvorrichtung (40) durch plastische Verformung zum Dämpfen der Aufbewahrungsvorrichtung (30) sowie eine zweite Dämpfungsvorrichtung (50a-50f) durch plastische Verformung in Verbindung mit einer radioaktiven Einheit, die aus einem oder mehreren radioaktiven Elementen (32a-32f) besteht, enthält, wobei die erste und die zweite Dämpfungsvorrichtung (40, 50a-50f) so angeordnet sind, dass sie bei einem axialen Fall des Pakets unabhängig voneinander funktionieren,
    dadurch gekennzeichnet, dass
    die erste Dämpfungsvorrichtung (40) mit den folgenden ersten Parametern verbunden ist:
    - σ1, entsprechend der Quetschspannung dieser ersten Dämpfungsvorrichtung;
    - S1, entsprechend der aktiven Fläche der ersten Dämpfungsvorrichtung, die von der Aufbewahrungsvorrichtung (30) axial getroffen werden soll, wenn das Paket axial herunterfällt;
    - M1, entsprechend der Masse der Aufbewahrungsvorrichtung (30), die von der ersten Dämpfungsvorrichtung (40) gedämpft werden soll;
    - Y1, entsprechend einem ersten repräsentativen Wert der Verzögerung der Aufbewahrungsvorrichtung bei einem axialen Fall des Pakets, der dazu führt, dass diese Aufbewahrungsvorrichtung (30) die erste Dämpfungsvorrichtung (40) plastisch zusammendrückt, wobei der erste repräsentative Wert der Verzögerung Y1 durch die folgende Formel bestimmt wird: Υ1 = (σ1*S1) /M1,
    wobei die zweite Dämpfungsvorrichtung (50a-50f) mit den folgenden zweiten Parametern verbunden ist:
    - σ2, entsprechend der Quetschspannung dieser zweiten Dämpfungsvorrichtung;
    - S2, entsprechend der aktiven Fläche der zweiten Dämpfungsvorrichtung, die von ihrer zugehörigen radioaktiven Einheit (32a-32f) axial getroffen werden soll, wenn das Paket axial herunterfällt;
    - M2, entsprechend der Masse der radioaktiven Einheit (32a-32f), die von der zweiten Dämpfungsvorrichtung (50a-50f) gedämpft werden soll;
    - Υ2, entsprechend einem zweiten repräsentativen Wert der Verzögerung der zugehörigen radioaktiven Einheit bei einem axialen Fall des Pakets, der dazu führt, dass diese radioaktive Einheit (32a-32f) die zweite Dämpfungsvorrichtung (50a-50f) plastisch zusammendrückt, wobei der zweite repräsentative Wert der Verzögerung Υ2 durch die folgende Formel bestimmt wird: Υ2 = (σ2*S2)/M2,
    und dass die ersten und zweiten Parameter so sind, dass der zweite repräsentative Wert der Verzögerung Υ2 sich von dem ersten repräsentativen Wert der Verzögerung Y1 unterscheidet.
  2. Paket nach Anspruch 1, dadurch gekennzeichnet, dass das Verhältnis | Υ2 - Υ1 |/min (Υ2, Υ1 ) größer als 1,1 ist.
  3. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das innere Dämpfungssystem (22) eine oder mehrere weitere zweite Dämpfungsvorrichtungen (50a-50f) durch plastische Verformung enthält, die jeweils mit einer separaten radioaktiven Einheit verbunden sind, die aus einem oder mehreren weiteren radioaktiven Elementen (32a-32f) gebildet ist,
    und dass die ersten und zweiten Parameter der ersten und zweiten Dämpfungsvorrichtungen (40, 50a-50f) so sind, dass der zweite repräsentative Wert der Verzögerung Υ2, der mit jeder der mindestens mehreren zweiten Dämpfungsvorrichtungen (50a-50f) und vorzugsweise mit jeder dieser zweiten Dämpfungsvorrichtungen verbunden ist, sich von dem ersten repräsentativen Wert der Verzögerung Υ1 unterscheidet, der mit der ersten Dämpfungsvorrichtung (40) verbunden ist.
  4. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die mit der zweiten Dämpfungsvorrichtung (50a-50f) oder jeder zweiten Dämpfungsvorrichtung verbundene radioaktive Einheit aus einem einzigen radioaktiven Element (32a-32f) besteht.
  5. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jedes radioaktive Element (32a-32f) ein Kernbrennstoffbündel, vorzugsweise ein frisches Brennstoffbündel, noch bevorzugter des Typs MOX, oder ein Behälter/Gehäuse für verglaste Abfälle oder ein Behälter/Gehäuse für Außenhüllen und Endstücke oder auch ein Gehäuse für den Transport von Pulver ist.
  6. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die oder jede zweite Dämpfungsvorrichtung (50a-50f) aus einem einzigen Block aus Dämpfungsmaterial, vorzugsweise aus Metallschaum, Holz, Wabenstruktur oder mithilfe einer Metallrohrstruktur, gebildet ist.
  7. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Dämpfungsvorrichtung (40) aus mehreren Blöcken (40a-40e) aus Dämpfungsmaterial mit Abstand zueinander, vorzugsweise aus Schaumstoff, Holz, Wabenstruktur oder mithilfe einer Metallrohrstruktur, gebildet ist.
  8. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich die Quetschspannung σ2 der oder jeder zweiten Dämpfungsvorrichtung (50a-50f) von der Quetschspannung σ1 der ersten Dämpfungsvorrichtung (40) unterscheidet.
  9. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Dämpfungsvorrichtung (40) und die oder jede zweite Dämpfungsvorrichtung (50a-50f) alle eine gleiche oder im Wesentlichen gleiche axiale Dicke aufweisen.
  10. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Dämpfungsvorrichtung (40) und die oder jede zweite Dämpfungsvorrichtung (50a-50f) in derselben Querebene des Pakets angeordnet sind.
  11. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich die erste Dämpfungsvorrichtung (40) und die oder jede zweite Dämpfungsvorrichtung (50a-50f) in derselben Hülle (54) befinden.
  12. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aufbewahrungsvorrichtung (30) eine perforierte Kopfplatte (36) enthält und dass das innere Dämpfungssystem (22) vorzugsweise an der perforierten Kopfplatte befestigt ist.
  13. Paket nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das zugehörige axiale Verschlusselement der Deckel (6) der Verpackung ist, der vorzugsweise abnehmbar an dem seitlichen Verpackungskörper montiert.
EP23719825.4A 2022-04-05 2023-03-31 Verpackung mit verpackung zum transport und/oder zur lagerung von radioaktivem inhalt mit einem kompakten internen stossabsorptionssystem Active EP4505490B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2203105A FR3134222B1 (fr) 2022-04-05 2022-04-05 Colis comprenant un emballage pour le transport et/ou l’entreposage d’un contenu radioactif, et comportant un systeme amortisseur interne a encombrement reduit
PCT/FR2023/050467 WO2023194678A1 (fr) 2022-04-05 2023-03-31 Colis comprenant un emballage pour le transport et/ou l'entreposage d'un contenu radioactif, et comportant un systeme amortisseur interne a encombrement reduit

Publications (2)

Publication Number Publication Date
EP4505490A1 EP4505490A1 (de) 2025-02-12
EP4505490B1 true EP4505490B1 (de) 2026-01-14

Family

ID=82319644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23719825.4A Active EP4505490B1 (de) 2022-04-05 2023-03-31 Verpackung mit verpackung zum transport und/oder zur lagerung von radioaktivem inhalt mit einem kompakten internen stossabsorptionssystem

Country Status (5)

Country Link
US (1) US20250246330A1 (de)
EP (1) EP4505490B1 (de)
JP (1) JP2025511789A (de)
FR (1) FR3134222B1 (de)
WO (1) WO2023194678A1 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61219000A (ja) * 1985-03-25 1986-09-29 原子燃料工業株式会社 燃料コンパクト収納装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800283A (en) * 1987-05-01 1989-01-24 Westinghouse Electric Corp. Shock-absorbing and heat conductive basket for use in a fuel rod transportation cask
FR2846778B1 (fr) * 2002-11-06 2005-04-08 Cogema Logistics Conteneur pour le stockage/transport de matieres radioactives non irradiees telles que des assemblages de combustible nucleaire
FR3010226B1 (fr) * 2013-09-05 2017-12-29 Tn Int Colis comprenant des moyens ameliores d'amortissement de choc entre un ensemble renfermant des matieres radioactives et le couvercle de l'emballage
JP6165028B2 (ja) * 2013-10-31 2017-07-19 三菱重工業株式会社 放射性物質収納容器支持架台
US11721447B2 (en) * 2019-12-27 2023-08-08 Holtec International Impact amelioration system for nuclear fuel storage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61219000A (ja) * 1985-03-25 1986-09-29 原子燃料工業株式会社 燃料コンパクト収納装置

Also Published As

Publication number Publication date
JP2025511789A (ja) 2025-04-16
WO2023194678A1 (fr) 2023-10-12
EP4505490A1 (de) 2025-02-12
US20250246330A1 (en) 2025-07-31
FR3134222B1 (fr) 2024-02-16
FR3134222A1 (fr) 2023-10-06

Similar Documents

Publication Publication Date Title
EP3042378B1 (de) Verpackung mit verbesserten mitteln zur stossdämpfung zwischen einer anordnung mit radioaktiven materialien und deckel für diese verpackung
WO2008064508A1 (fr) Dispositif résistant aux chocs dus à une chute, pour le transport et la distribution de liquide, notamment de l'eau
EP3134901B1 (de) Verpackung zum transportieren und/oder lagern von radioaktivem material mit einem wirksameren eckstossdämpfer
CA2367515C (fr) Dispositif de protection d'un recipient et recipient equipe de ce dispositif
EP1344227B1 (de) Verpackungseinrichtung für den massentransport von uranhaltigen spaltbaren materialien
WO2001063621A1 (fr) Conteneur a double enceinte pour le transport ou le stockage de matieres radioactives
EP2904613A1 (de) Verpackung für den transport und/oder die lagerung von radioaktiven materialien mit verbesserter vorrichtung zum befestigen einer stossdämpfenden abdeckung
EP4505490B1 (de) Verpackung mit verpackung zum transport und/oder zur lagerung von radioaktivem inhalt mit einem kompakten internen stossabsorptionssystem
WO2015022350A1 (fr) Ensemble comprenant un emballage de transport de matieres radioactives et un chassis de support de l'emballage
EP1525591B1 (de) Schutzwand mit einer panzerung gegen eindringen für einen behälter und behälter mit einer solchen wand
FR3061484B1 (fr) Coffret pour bouteille comportant des moyens de retenue de la bouteille
EP3743928B1 (de) Lagerkorb für radioaktive materialien mit optimiertem platzbedarf und mit gehäusen mit genauerer geometrie
EP4315369B1 (de) Vorrichtung zum transport von uranhexafluorid mit stossdämpfern
EP4405982B1 (de) Verpackung zum transport und/oder zur lagerung eines radioaktiven materials mit einem internen stossdämpfer mit stossabsorbierenden röhren
EP1576621A2 (de) Behälter zum lagern/transportieren von unbestrahlten radioaktiven materialien, wie zum beispiel kernbrennstoffbaugruppen
WO2022038325A1 (fr) Ensemble pour le transport d'hexafluorure d'uranium
WO2019129975A1 (fr) Emballage de transport et/ou d'entreposage de matieres radioactives presentant des moyens ameliores de maintien de capot amortisseur
FR3121265A1 (fr) Ensemble pour le transport d’hexafluorure d’uranium
FR2679873A1 (fr) Cale et caisse comportant la cale.
WO2026078119A1 (fr) Emballage pour le transport d'elements radioactifs, presentant des performances d'amortissement ameliorees en cas de chute
FR3082655A1 (fr) Emballage pour le transport et/ou l'entreposage de matieres radioactives presentant une conception facilitant la manutention de l'ensemble de matieres radioactives
FR2895729A1 (fr) Emballage d'un objet par suspension
FR3088474A1 (fr) Colis de matiere radioactive, comprenant un dispositif de calage axial a materiau a memoire de forme
FR2567486A1 (fr) Emballage anti-choc pour objets fragiles notamment des bouteilles
FR3081846A1 (fr) Dispositif de calage destine a emprisonner au moins un produit a caler, emballage d'expedition comprenant un tel dispositif et flan predecoupe pour la realisation d'un tel emballage

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20241030

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ORANO NUCLEAR PACKAGES AND SERVICES

P01 Opt-out of the competence of the unified patent court (upc) registered

Free format text: CASE NUMBER: APP_23450/2025

Effective date: 20250516

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20250910

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: F10

Free format text: ST27 STATUS EVENT CODE: U-0-0-F10-F00 (AS PROVIDED BY THE NATIONAL OFFICE)

Effective date: 20260114

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602023010783

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20260330

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20260324

Year of fee payment: 4