EP1503385B1 - Transport and/or storage container - Google Patents

Transport and/or storage container Download PDF

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Publication number
EP1503385B1
EP1503385B1 EP03017417A EP03017417A EP1503385B1 EP 1503385 B1 EP1503385 B1 EP 1503385B1 EP 03017417 A EP03017417 A EP 03017417A EP 03017417 A EP03017417 A EP 03017417A EP 1503385 B1 EP1503385 B1 EP 1503385B1
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EP
European Patent Office
Prior art keywords
container
radioactive
spring element
transport
spring
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
EP03017417A
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German (de)
French (fr)
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EP1503385A1 (en
Inventor
Roland Dipl-Ing. Hüggenberg
Rudolf Dr. Ing Diersch
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
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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
Priority to AT03017417T priority Critical patent/ATE499686T1/en
Application filed by GNS Gesellschaft fuer Nuklearservice mbH filed Critical GNS Gesellschaft fuer Nuklearservice mbH
Priority to EP03017417A priority patent/EP1503385B1/en
Priority to DE50313491T priority patent/DE50313491D1/en
Priority to ES03017417T priority patent/ES2356898T3/en
Priority to JP2004221797A priority patent/JP2005055435A/en
Priority to US10/912,742 priority patent/US20050056563A1/en
Priority to RU2004123577/06A priority patent/RU2004123577A/en
Publication of EP1503385A1 publication Critical patent/EP1503385A1/en
Application granted granted Critical
Publication of EP1503385B1 publication Critical patent/EP1503385B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal
    • G21F5/008—Containers for fuel elements
    • 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

Definitions

  • the invention relates to a transport and / or storage container with at least one recorded in a receiving space radioactive element with a container bottom, a container shell and adjacent to the receiving space container lid, wherein in the vertical Aufstellzusatz the container a space with an axial distance f between the radioactive Element and the container lid is present and wherein container inside the container bottom at least one spring element is provided, wherein the spring element in the vertical installation state of the container by the weight of the radioactive element under bias can be set.
  • Radioactive elements here means in particular spent or fresh fuel or HAW glass kokillen (HAW: high active waste).
  • Transport and / or storage containers of the type described above are available in various embodiments.
  • an axial distance or an axial clearance is usually realized between the recorded radioactive elements, for example between the recorded fuel assemblies and the container lid.
  • the accordingly set vertical height of the receiving space of the container initially takes into account the fact that in the container components or radioactive elements with different dimensions must be accommodated.
  • manufacturing tolerances must be taken into account with respect to the container components and with respect to the incorporated components.
  • the fact must be taken into account that a relative thermal expansion of recorded components and container components can take place and a change in length of the components received in the container due to radioactive irradiation.
  • a small, axial space between radioactive elements and container lid is required even if the container lid is functionally reliable, for example remotely operated, must be placed under water.
  • Most of these known containers have proven themselves in terms of strength or stability.
  • the mechanical resistance with regard to certain exceptional situations can be improved or in need of improvement.
  • Such an exceptional situation is in particular the free fall of a container which then impinges with the container lid-side front end or the container lid-side end face on a rigid base. In the free fall phase there is a gap between the recorded radioactive elements and the container lid. In this way, it comes as it were to a delayed impact of the elements and both the lid system and the recorded elements are relatively heavily loaded. It is understood that such a high load is undesirable for safety reasons.
  • DE 202 09 845 U discloses a container system for transporting and storing highly radioactive materials having an outer container in which an inner container is received enclosed by a central container.
  • the outer container has in its interior on the inner surface and on the lid and the bottom plate inwardly directed spring elements which are biased by a biasing means with the proviso that the central container is received in the outer container free-floating.
  • the mounting of this container system is very expensive especially under water and remote control.
  • the invention addresses the technical problem of specifying a transport and / or storage container of the type mentioned, in which the disadvantages described above are avoided and is characterized in free fall with lid-side impact by strength or stability and thus safety.
  • the invention teaches a transport and / or storage container, which is characterized in that the Vorspannweg V of the spring element is greater than the distance f of the radioactive element to the container lid in the vertical installation state of the container and that the radioactive element Container bottom side has a recess for receiving at least a portion of the spring element.
  • radioactive elements are accommodated in the receiving space of the container.
  • the radioactive elements are preferably spent or fresh fuel elements or HAW glass kokillen.
  • a basket for receiving the radioactive elements in the receiving space is available.
  • at least one spring element can also be arranged between the support basket and the container bottom.
  • the term radioactive element in the context of the invention in principle also means a carrying basket, a carrying element or a casing for a radioactive element or for a plurality of radioactive elements.
  • transport and / or storage container comprises a lid system with several lids, for example a primary lid and a secondary lid, then container lid means the inner lid immediately adjacent to the receiving space for the radioactive elements. - It is within the scope of the invention that between
  • Container bottom and radioactive element is provided at least one spring element.
  • the spring element When the spring element is set according to the invention under bias, its length is reduced. The spring element is so compressed as it were under the weight of the radioactive element or the radioactive elements. Vorspannweg the spring element means in the invention, the distance or the way by which the spring element is compressed under the weight of the radioactive element in comparison to the relaxed state of the spring element.
  • the spring element is in the vertical installation state of the container by a vertical installation state of the container in particular means that the container bottom of the container rests on a substrate and the container lid is oriented on the upper side of the container.
  • the spring element is a helical spring.
  • the coil spring is suitably made of steel.
  • Spring element in the context of the invention basically means any element which is compressible under the weight of a radioactive element or can be placed under bias, and which shows an elastic resilience when relieved.
  • a radioactive element on the container bottom side has a recess for receiving at least part of a spring element.
  • a transport and / or storage container according to the invention is usually a plurality of radioactive elements.
  • each radioactive element has a container bottom side recess for receiving a spring element. If the radioactive elements are fuel elements, then the container bottom-side recess is located in the base of a fuel assembly. Conveniently, this recess is cylindrical.
  • the container bottom side recess is preferably formed as a dome-shaped recess.
  • a spring element in the vertical installation state of the container is taken over its length completely in the container bottom side recess.
  • Length of the spring element here means the extension in the longitudinal direction of the container parallel to the container walls.
  • a complete recording of the prestressed spring element or the residual length of the prestressed spring element takes place in the container bottom side recess.
  • the invention is based on the finding that an inventively arranged transport and / or storage container a free fall from relatively large heights with impact of the lid-side end face on a rigid Underlay without significant damage or damage can survive.
  • the invention is based in particular on the finding that with the construction of the container according to the invention, stronger loads on the cover system during impact can be effectively and reliably avoided. It should be emphasized that the container according to the invention can be realized with relatively simple and inexpensive measures.
  • the figures show a transport and / or storage container according to the invention with a receiving space 1 for radioactive elements 2.
  • the container has a container bottom 3, a container casing 4 and a container lid 5 adjoining the receiving space 1 for the radioactive elements 2.
  • a Spring element 6 is provided, which is preferably designed and in the embodiment as a helical spring.
  • Fig. 1 shows the spring element 6 in the unloaded state.
  • the radioactive element 2 is here introduced straight into the receiving space 1 of the container. In the unloaded state, the spring element 6 has a length 1.
  • Fig. 2 shows the state in which the spring element 6 is biased by the weight of the radioactive element 2.
  • the spring element 6 has been compressed here in comparison to its original length 1 in the unloaded state by the Vorspannweg v.
  • the generated Vorspannweg v of the spring element 6 is greater than the distance f of the radioactive element 2 to the container lid 5 in the vertical installation state of the container.
  • the radioactive element 2 container bottom side has a recess 7 for receiving the spring element 6.
  • the recess 7 is provided here in the foot of the radioactive element 2.
  • the spring element 6 is preferably and in the embodiment in the vertical installation state of the container or in its prestressed state over its length completely received in the container bottom side recess 7 of the radioactive element 2.
  • Fig. 3 shows the container in reverse orientation during free fall with subsequent impact on the container lid 5.
  • the biased spring element 6 presses the radioactive element 2 against the container lid 5.
  • No distance between radioactive element 2 and container lid 5 build in the free fall phase, which would lead to a delayed impact and thus to a greater load on the container lid 5. Due to the measures according to the invention, the container lid 5 is effectively protected or protected during the impact.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Buffer Packaging (AREA)
  • Stackable Containers (AREA)
  • Packages (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Closures For Containers (AREA)

Abstract

A transport and/or storage container with a space (1) for at least one radioactive element (2) comprises at least one spring element (6) whose deflection under the weight of the radioactive element is greater than the clearance between the radioactive element and the container lid (5).

Description

Die Erfindung betrifft einen Transport- und/oder Lagerbehälter mit zumindest einem in einem Aufnahmeraum aufgenommenen radioaktiven Element, mit einem Behälterboden, einem Behältermantel und einem an den Aufnahmeraum angrenzenden Behälterdeckel, wobei im vertikalen Aufstellzusatz des Behälters ein Freiraum mit einem axialen Abstand f zwischen dem radioaktiven Element und dem Behälterdeckel vorhanden ist und wobei behälterinnenseitig am Behälterboden zumindest ein Federelement vorgesehen ist, wobei das Federelement im vertikalen Aufstellzustand des Behälters durch das Eigengewicht des radioaktiven Elementes unter Vorspannung setzbar ist. - Radioaktive Elemente meint hier insbesondere abgebrannte oder frische Brennelemente oder HAW-Glaskokillen (HAW: high active waste).The invention relates to a transport and / or storage container with at least one recorded in a receiving space radioactive element with a container bottom, a container shell and adjacent to the receiving space container lid, wherein in the vertical Aufstellzusatz the container a space with an axial distance f between the radioactive Element and the container lid is present and wherein container inside the container bottom at least one spring element is provided, wherein the spring element in the vertical installation state of the container by the weight of the radioactive element under bias can be set. - Radioactive elements here means in particular spent or fresh fuel or HAW glass kokillen (HAW: high active waste).

Transport- und/oder Lagerbehälter der vorstehend beschriebenen Art gibt es in verschiedenen Ausführungsformen. Bei diesen bekannten Transport- und/oder Lagerbehältern ist in der Regel zwischen den aufgenommenen radioaktiven Elementen, beispielsweise zwischen den aufgenommenen Brennelementen und dem Behälterdeckel ein axialer Abstand bzw. ein axialer Freiraum verwirklicht. Die dementsprechend eingerichtete vertikale Höhe des Aufnahmeraumes des Behälters trägt zunächst dem Umstand Rechnung, dass in dem Behälter Komponenten bzw. radioaktive Elemente mit unterschiedlichen Abmessungen aufnehmbar sein müssen. Außerdem müssen Fertigungstoleranzen in Bezug auf die Behälterkomponenten und in Bezug auf die aufgenommenen Komponenten berücksichtigt werden. Fernerhin ist dem Umstand Rechnung zu tragen, dass eine relative thermische Ausdehnung von aufgenommenen Komponenten und Behälterkomponenten stattfinden kann sowie eine Längenänderung der im Behälter aufgenommenen Komponenten infolge radioaktiver Bestrahlung. Ein kleiner, axialer Freiraum zwischen radioaktiven Elementen und Behälterdeckel wird auch dann erforderlich, wenn der Behälterdeckel funktionssicher, beispielsweise fernbedient, unter Wasser aufgesetzt werden muss. Die meisten dieser bekannten Behälter haben sich in Festigkeit- bzw. stabilitätsmäßiger Hinsicht bewährt. Allerdings ist die mechanische Resistenz im Hinblick auf bestimmte Ausnahmesituationen verbesserungsfähig bzw. verbesserungsbedürftig. Eine solche Ausnahmesituation ist insbesondere der freie Fall eines Behälters, der dann mit dem behälterdeckelseitigen Stirnende bzw. der behälterdeckelseitigen Stirnfläche auf einer starren Unterlage aufprallt. In der Phase des freien Falls bleibt ein Abstand zwischen den aufgenommenen radioaktiven Elementen und dem Behälterdeckel. Auf diese Weise kommt es gleichsam zu einem verzögerten Aufprall der Elemente und sowohl das Deckelsystem als auch die aufgenommenen Elemente werden relativ stark belastet. Es versteht sich, dass eine solch hohe Belastung aus Gründen der Sicherheit unerwünscht ist. In DE 202 09 845 U ist ein Behältersystem zum Transport und zur Lagerung hoch radioaktiver Materialien offenbart, das einen Außenbehälter aufweist, in dem ein Innenbehälter von einem mittleren Behälter umschlossen aufgenommen ist. Der Außenbehälter weist in seinem Innenraum an der Innenfläche sowie am Deckel und der Bodenplatte nach innen gerichtete Federelemente auf, die mit einer Vorspanneinrichtung mit der Maßgabe vorgespannt sind, dass der mittlere Behälter freischwebend in dem Außenbehälter aufgenommen wird. Das Montieren dieses Behältersystems ist jedoch insbesondere unter Wasser und fernbedient sehr aufwendig.Transport and / or storage containers of the type described above are available in various embodiments. In these known transport and / or storage containers an axial distance or an axial clearance is usually realized between the recorded radioactive elements, for example between the recorded fuel assemblies and the container lid. The accordingly set vertical height of the receiving space of the container initially takes into account the fact that in the container components or radioactive elements with different dimensions must be accommodated. In addition, manufacturing tolerances must be taken into account with respect to the container components and with respect to the incorporated components. Furthermore, the fact must be taken into account that a relative thermal expansion of recorded components and container components can take place and a change in length of the components received in the container due to radioactive irradiation. A small, axial space between radioactive elements and container lid is required even if the container lid is functionally reliable, for example remotely operated, must be placed under water. Most of these known containers have proven themselves in terms of strength or stability. However, the mechanical resistance with regard to certain exceptional situations can be improved or in need of improvement. Such an exceptional situation is in particular the free fall of a container which then impinges with the container lid-side front end or the container lid-side end face on a rigid base. In the free fall phase there is a gap between the recorded radioactive elements and the container lid. In this way, it comes as it were to a delayed impact of the elements and both the lid system and the recorded elements are relatively heavily loaded. It is understood that such a high load is undesirable for safety reasons. In DE 202 09 845 U discloses a container system for transporting and storing highly radioactive materials having an outer container in which an inner container is received enclosed by a central container. The outer container has in its interior on the inner surface and on the lid and the bottom plate inwardly directed spring elements which are biased by a biasing means with the proviso that the central container is received in the outer container free-floating. However, the mounting of this container system is very expensive especially under water and remote control.

Demgegenüber liegt der Erfindung das technische Problem zugrunde, einen Transport- und/oder Lagerbehälter der eingangs genannten Art anzugeben, bei dem die vorstehend beschriebenen Nachteile vermieden werden und der sich beim freien Fall mit deckelseitigem Aufprall durch Festigkeit bzw. Stabilität und somit durch Sicherheit auszeichnet.In contrast, the invention addresses the technical problem of specifying a transport and / or storage container of the type mentioned, in which the disadvantages described above are avoided and is characterized in free fall with lid-side impact by strength or stability and thus safety.

Zur Lösung dieses technischen Problems lehrt die Erfindung einen Transport- und/oder Lagerbehälter, der dadurch gekennzeichnet ist, dass der dabei erzeugte Vorspannweg V des Federelementes größer ist als der Abstand f des radioaktiven Elementes zum Behälterdeckel im vertikalen Aufstellzustand des Behälters und dass das radioaktive Element behälterbodenseitig eine Ausnehmung für die Aufnahme zumindest eines Teils des Federelementes aufweist.To solve this technical problem, the invention teaches a transport and / or storage container, which is characterized in that the Vorspannweg V of the spring element is greater than the distance f of the radioactive element to the container lid in the vertical installation state of the container and that the radioactive element Container bottom side has a recess for receiving at least a portion of the spring element.

Es liegt im Rahmen der Erfindung, dass mehrere radioaktive Elemente in den Aufnahmeraum des Behälters aufgenommen sind. Bei den radioaktiven Elementen handelt es sich vorzugsweise um abgebrannte oder frische Brennelemente oder um HAW-Glaskokillen. Es liegt auch im Rahmen der Erfindung, dass in an sich üblicher Weise ein Tragkorb für die Aufnahme der radioaktiven Elemente im Aufnahmeraum vorhanden ist. Grundsätzlich kann mindestens ein Federelement auch zwischen dem Tragkorb und dem Behälterboden angeordnet sein. Für solche Ausführungsformen meint der Begriff radioaktives Element im Rahmen der Erfindung prinzipiell auch einen Tragkorb, ein Tragelement oder eine Hülle für ein radioaktives Element bzw. für mehrere radioaktive Elemente.It is within the scope of the invention that a plurality of radioactive elements are accommodated in the receiving space of the container. The radioactive elements are preferably spent or fresh fuel elements or HAW glass kokillen. It is also within the scope of the invention that in a conventional manner a basket for receiving the radioactive elements in the receiving space is available. In principle, at least one spring element can also be arranged between the support basket and the container bottom. For such embodiments, the term radioactive element in the context of the invention in principle also means a carrying basket, a carrying element or a casing for a radioactive element or for a plurality of radioactive elements.

Wenn der erfindungsgemäße Transport- und/oder Lagerbehälter ein Deckelsystem mit mehreren Deckeln aufweist, beispielsweise einen Primärdeckel und einen Sekundärdeckel, so ist mit Behälterdeckel der innere Deckel gemeint, der unmittelbar an den Aufnahmeraum für die radioaktiven Elemente angrenzt. - Es liegt im Rahmen der Erfindung, dass zwischenIf the transport and / or storage container according to the invention comprises a lid system with several lids, for example a primary lid and a secondary lid, then container lid means the inner lid immediately adjacent to the receiving space for the radioactive elements. - It is within the scope of the invention that between

Behälterboden und radioaktivem Element zumindest ein Federelement vorgesehen ist. Wenn das Federelement erfindungsgemäß unter Vorspannung gesetzt wird, reduziert sich seine Länge. Das Federelement wird also unter dem Eigengewicht des radioaktiven Elementes bzw. der radioaktiven Elemente gleichsam zusammengedrückt. Vorspannweg des Federelementes meint im Rahmen der Erfindung die Strecke bzw. den Weg, um den das Federelement unter dem Eigengewicht des radioaktiven Elementes im Vergleich zum entspannten Zustand des Federelementes zusammengedrückt wird.Container bottom and radioactive element is provided at least one spring element. When the spring element is set according to the invention under bias, its length is reduced. The spring element is so compressed as it were under the weight of the radioactive element or the radioactive elements. Vorspannweg the spring element means in the invention, the distance or the way by which the spring element is compressed under the weight of the radioactive element in comparison to the relaxed state of the spring element.

Das Federelement wird im vertikalen Aufstellzustand des Behälters durch ein Vertikaler Aufstellzustand des Behälters meint insbesondere, dass der Behälterboden des Behälters auf einem Untergrund aufsteht und der Behälterdeckel oberseitig am Behälter orientiert ist.The spring element is in the vertical installation state of the container by a vertical installation state of the container in particular means that the container bottom of the container rests on a substrate and the container lid is oriented on the upper side of the container.

Nach sehr bevorzugter Ausführungsform der Erfindung ist das Federelement eine Schraubenfeder. Die Schraubenfeder besteht zweckmäßigerweise aus Stahl. Grundsätzlich liegt es aber auch im Rahmen der Erfindung, ein Federelement als Elastomerfeder auszubilden. Federelement meint im Rahmen der Erfindung grundsätzlich jedes Element, das unter dem Eigengewicht eines radioaktiven Elementes zusammendrückbar bzw. unter Vorspannung setzbar ist, und das bei Entlastung ein elastisches Rückstellvermögen zeigt.According to a very preferred embodiment of the invention, the spring element is a helical spring. The coil spring is suitably made of steel. Basically, it is also within the scope of the invention to form a spring element as an elastomeric spring. Spring element in the context of the invention basically means any element which is compressible under the weight of a radioactive element or can be placed under bias, and which shows an elastic resilience when relieved.

Erfindungsgemäß weist ein radioaktives Element behälterbodenseitig eine Ausnehmung für die Aufnahme zumindest eines Teils eines Federelementes auf. In einem erfindungsgemäßen Transport- und/oder Lagerhälter befindet sich in der Regel eine Mehrzahl von radioaktiven Elementen. Nach sehr bevorzugter Ausführungsform der Erfindung weist jedes radioaktive Element eine behälterbodenseitige Ausnehmung zur Aufnahme eines Federelementes auf. Wenn es sich bei den radioaktiven Elementen um Brennelemente handelt, so befindet sich die behälterbodenseitige Ausnehmung im Fußstück eines Brennelementes. Zweckmäßigerweise ist diese Ausnehmung zylinderförmig ausgebildet. Bei HAW-Kokillen ist die behälterbodenseitige Ausnehmung vorzugsweise als kalottenförmige Aussparung ausgebildet.According to the invention, a radioactive element on the container bottom side has a recess for receiving at least part of a spring element. In a transport and / or storage container according to the invention is usually a plurality of radioactive elements. According to a very preferred embodiment of the invention, each radioactive element has a container bottom side recess for receiving a spring element. If the radioactive elements are fuel elements, then the container bottom-side recess is located in the base of a fuel assembly. Conveniently, this recess is cylindrical. In HAW molds, the container bottom side recess is preferably formed as a dome-shaped recess.

Es liegt im Rahmen der Erfindung, dass ein Federelement im vertikalen Aufstellzustand des Behälters über seine Länge vollständig in der behälterbodenseitigen Ausnehmung aufgenommen ist. Länge des Federelementes meint hier die Ausdehnung in Längsrichtung des Behälters parallel zu den Behälterwänden. Bei der vorgenannten bevorzugten Ausführungsform der Erfindung erfolgt also eine vollständige Aufnahme des vorgespannten Federelementes bzw. der Restlänge des vorgespannten Federelementes in der behälterbodenseitigen Ausnehmung. Diese Ausführungsform macht es möglich, dass trotz der erfindungsgemäßen Anordnung von Federelementen am Behälterboden im Vergleich zu den bislang bekannten Behältern keine konstruktive Verlängerung des Behälterinnenraumes notwendig ist.It is within the scope of the invention that a spring element in the vertical installation state of the container is taken over its length completely in the container bottom side recess. Length of the spring element here means the extension in the longitudinal direction of the container parallel to the container walls. In the aforementioned preferred embodiment of the invention, therefore, a complete recording of the prestressed spring element or the residual length of the prestressed spring element takes place in the container bottom side recess. This embodiment makes it possible that despite the inventive arrangement of spring elements on the container bottom in comparison to the previously known containers no structural extension of the container interior is necessary.

Der Erfindung liegt die Erkenntnis zugrunde, dass ein erfindungsgemäß eingerichteter Transport- und/oder Lagerbehälter einen freien Fall aus relativ großen Höhen mit Aufprall der deckelseitigen Stirnfläche auf einer starren Unterlage ohne wesentliche Beeinträchtigungen oder Beschädigungen überstehen kann. Der Erfindung liegt insbesondere die Erkenntnis zugrunde, dass mit der erfindungsgemäßen Ausbildung des Behälters stärkere Belastungen des Deckelsystems beim Aufprall effektiv und funktionssicher vermieden werden können. Hervorzuheben ist, dass der erfindungsgemäße Behälter mit relativ einfachen und kostengünstigen Maßnahmen verwirklicht werden kann.The invention is based on the finding that an inventively arranged transport and / or storage container a free fall from relatively large heights with impact of the lid-side end face on a rigid Underlay without significant damage or damage can survive. The invention is based in particular on the finding that with the construction of the container according to the invention, stronger loads on the cover system during impact can be effectively and reliably avoided. It should be emphasized that the container according to the invention can be realized with relatively simple and inexpensive measures.

Nachfolgend wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung:

Fig. 1
einen Schnitt durch einen erfindungsgemäßen Behälter im vertikalen Aufstellzustand bei unbe- lastetem Federelement,
Fig. 2
den Gegenstand nach Fig. 1 bei belastetem bzw. vorgespanntem Federelement und
Fig. 3
den Gegenstand nach den Fig. 1 bzw. 2 in umge- kehrter Orientierung beim freien Fall bzw. beim Aufprall auf das Deckelsystem.
The invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment. In a schematic representation:
Fig. 1
a section through a container according to the invention in the vertical installation state with unloaded spring element,
Fig. 2
the object after Fig. 1 at loaded or prestressed spring element and
Fig. 3
the object according to the Fig. 1 or 2 in the opposite orientation during free fall or impact on the cover system.

Die Figuren zeigen einen erfindungsgemäßen Transport- und/oder Lagerbehälter mit einem Aufnahmeraum 1 für radioaktive Elemente 2. Der Behälter weist einen Behälterboden 3, einen Behältermantel 4 und einen an den Aufnahmeraum 1 für die radioaktiven Elemente 2 angrenzenden Behälterdeckel 5 auf. In den Figuren ist erkennbar, dass zwischen Behälterboden 3 und radioaktivem Element 2 ein Federelement 6 vorgesehen ist, das vorzugsweise und im Ausführungsbeispiel als Schraubenfeder ausgebildet ist. Fig. 1 zeigt das Federelement 6 im unbelasteten Zustand. Das radioaktive Element 2 wird hier gerade in den Aufnahmeraum 1 des Behälters eingeführt. Im unbelasteten Zustand weist das Federelement 6 eine Länge 1 auf.The figures show a transport and / or storage container according to the invention with a receiving space 1 for radioactive elements 2. The container has a container bottom 3, a container casing 4 and a container lid 5 adjoining the receiving space 1 for the radioactive elements 2. In the figures it can be seen that between container bottom 3 and radioactive element 2 a Spring element 6 is provided, which is preferably designed and in the embodiment as a helical spring. Fig. 1 shows the spring element 6 in the unloaded state. The radioactive element 2 is here introduced straight into the receiving space 1 of the container. In the unloaded state, the spring element 6 has a length 1.

Fig. 2 zeigt den Zustand, in dem das Federelement 6 durch das Eigengewicht des radioaktiven Elementes 2 unter Vorspannung gesetzt ist. Das Federelement 6 ist hier im Vergleich zu seiner ursprünglichen Länge 1 im unbelasteten Zustand um den Vorspannweg v zusammengedrückt worden. In Fig. 2 ist fernerhin erkennbar, dass der erzeugte Vorspannweg v des Federelementes 6 größer ist als der Abstand f des radioaktiven Elementes 2 zum Behälterdeckel 5 im vertikalen Aufstellzustand des Behälters. Fig. 2 shows the state in which the spring element 6 is biased by the weight of the radioactive element 2. The spring element 6 has been compressed here in comparison to its original length 1 in the unloaded state by the Vorspannweg v. In Fig. 2 is further seen that the generated Vorspannweg v of the spring element 6 is greater than the distance f of the radioactive element 2 to the container lid 5 in the vertical installation state of the container.

Die Figuren zeigen, dass das radioaktive Element 2 behälterbodenseitig eine Ausnehmung 7 zur Aufnahme des Federelementes 6 aufweist. Die Ausnehmung 7 ist hier im Fußstück des radioaktiven Elementes 2 vorgesehen. In Fig. 2 ist erkennbar, dass das Federelement 6 vorzugsweise und im Ausführungsbeispiel im vertikalen Aufstellzustand des Behälters bzw. in seinem vorgespannten Zustand über seine Länge vollständig in der behälterbodenseitigen Ausnehmung 7 des radioaktiven Elementes 2 aufgenommen ist.The figures show that the radioactive element 2 container bottom side has a recess 7 for receiving the spring element 6. The recess 7 is provided here in the foot of the radioactive element 2. In Fig. 2 It can be seen that the spring element 6 is preferably and in the embodiment in the vertical installation state of the container or in its prestressed state over its length completely received in the container bottom side recess 7 of the radioactive element 2.

Fig. 3 zeigt den Behälter in umgekehrter Orientierung beim freien Fall mit nachfolgendem Aufprall am Behälterdeckel 5. Hier drückt das vorgespannte Federelement 6 das radioaktive Element 2 gegen den Behälterdeckel 5. Auf diese Weise kann sich in der Phase des freien Falls kein Abstand zwischen radioaktivem Element 2 und Behälterdeckel 5 aufbauen, der zu einem verzögerten Aufprall und damit zu einer stärkeren Belastung des Behälterdeckels 5 führen würde. Aufgrund der erfindungsgemäßen Maßnahmen wird der Behälterdeckel 5 beim Aufprall effektiv geschützt bzw. geschont. Fig. 3 shows the container in reverse orientation during free fall with subsequent impact on the container lid 5. Here, the biased spring element 6 presses the radioactive element 2 against the container lid 5. In this way No distance between radioactive element 2 and container lid 5 build in the free fall phase, which would lead to a delayed impact and thus to a greater load on the container lid 5. Due to the measures according to the invention, the container lid 5 is effectively protected or protected during the impact.

Claims (5)

  1. A transport- and/or storage container with at least one radioactive element (2) accommodated in a receiving chamber (1), a container bottom (3), a container shell (4) and a container cover (5) adjacent to the receiving chamber (1),
    wherein in a vertically upright state of the container, a free space with an axial distance f between the radioactive element (2) and the container cover (5) is provided,
    wherein in the interior of the container on the container bottom (3), at least one spring element (6) is provided, wherein the spring element (6) is placeable in the vertically upright state of the container by means of the dead weight of the radioactive element (2) under preload, characterized in that
    the preload v of the spring element (6) produced thereby is greater than the distance f of the radioactive element (2) to the container cover (5) in the vertically upright state of the container,
    and that the radioactive element (2) has a recess (7) facing the bottom of the container for receiving at least one part of a spring element (6).
  2. The transport- and/or storage container according to claim 1, wherein the radioactive element (2) is a fuel element or a vitrified waste container.
  3. The transport- and/or storage container according to one of claims 1 or 2, wherein the spring element (6) is a compression spring.
  4. The transport- and/or storage container according to one of claims 1 through 3, wherein each radioactive element (2) has a recess (7) facing the container bottom for receiving a spring element (6).
  5. The transport- and/or storage container according to one of claims 1 through 4, wherein a spring element (6) in the vertically upright state of the container is received over its length completely in the recess (7) facing the container bottom.
EP03017417A 2003-08-01 2003-08-01 Transport and/or storage container Expired - Lifetime EP1503385B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP03017417A EP1503385B1 (en) 2003-08-01 2003-08-01 Transport and/or storage container
DE50313491T DE50313491D1 (en) 2003-08-01 2003-08-01 Transport and / or storage container
ES03017417T ES2356898T3 (en) 2003-08-01 2003-08-01 CONTAINER OF TRANSPORT AND / OR STORAGE.
AT03017417T ATE499686T1 (en) 2003-08-01 2003-08-01 TRANSPORT AND/OR STORAGE CONTAINERS
JP2004221797A JP2005055435A (en) 2003-08-01 2004-07-29 Container for transportation and/or storage
US10/912,742 US20050056563A1 (en) 2003-08-01 2004-07-30 Transport/storage container for radioactive elements
RU2004123577/06A RU2004123577A (en) 2003-08-01 2004-07-30 TRANSPORT AND / OR STORAGE CONTAINER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03017417A EP1503385B1 (en) 2003-08-01 2003-08-01 Transport and/or storage container

Publications (2)

Publication Number Publication Date
EP1503385A1 EP1503385A1 (en) 2005-02-02
EP1503385B1 true EP1503385B1 (en) 2011-02-23

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EP03017417A Expired - Lifetime EP1503385B1 (en) 2003-08-01 2003-08-01 Transport and/or storage container

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US (1) US20050056563A1 (en)
EP (1) EP1503385B1 (en)
JP (1) JP2005055435A (en)
AT (1) ATE499686T1 (en)
DE (1) DE50313491D1 (en)
ES (1) ES2356898T3 (en)
RU (1) RU2004123577A (en)

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US20090298732A1 (en) * 2008-05-29 2009-12-03 Chevron U.S.A. Inc. Gear oil compositions, methods of making and using thereof
JP5501637B2 (en) * 2009-03-11 2014-05-28 三菱重工業株式会社 Fuel assembly storage container
JP5781265B2 (en) * 2009-07-31 2015-09-16 三菱重工業株式会社 Transport container for fuel assembly
JP6004386B2 (en) * 2012-01-27 2016-10-05 三菱重工業株式会社 Spent fuel storage rack
FR3088474B1 (en) 2018-11-14 2020-12-04 Tn Int PACKAGE OF RADIOACTIVE MATERIAL, INCLUDING AN AXIAL TIMING DEVICE WITH MEMORY-MEMORY MATERIAL

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Also Published As

Publication number Publication date
RU2004123577A (en) 2006-01-27
ES2356898T3 (en) 2011-04-14
DE50313491D1 (en) 2011-04-07
US20050056563A1 (en) 2005-03-17
JP2005055435A (en) 2005-03-03
EP1503385A1 (en) 2005-02-02
ATE499686T1 (en) 2011-03-15

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