EP0269885B1 - Container, especially for radioactive matter - Google Patents

Container, especially for radioactive matter Download PDF

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Publication number
EP0269885B1
EP0269885B1 EP87116095A EP87116095A EP0269885B1 EP 0269885 B1 EP0269885 B1 EP 0269885B1 EP 87116095 A EP87116095 A EP 87116095A EP 87116095 A EP87116095 A EP 87116095A EP 0269885 B1 EP0269885 B1 EP 0269885B1
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EP
European Patent Office
Prior art keywords
container
main
outer container
main container
filling
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
EP87116095A
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German (de)
French (fr)
Other versions
EP0269885A1 (en
Inventor
Ralf Dr. Güldner
Gerd Dr. Kindleben
Ingo Dipl.-Ing. Lasberg
Kurt Dr. Wittmann
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Siemens AG
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Siemens AG
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Publication of EP0269885A1 publication Critical patent/EP0269885A1/en
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Classifications

    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04Treating liquids
    • G21F9/20Disposal of liquid waste
    • G21F9/22Disposal of liquid waste by storage in a tank or other container
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00Transportable or portable shielded containers
    • G21F5/002Containers for fluid radioactive wastes
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00Transportable or portable shielded containers
    • G21F5/06Details of, or accessories to, the containers
    • G21F5/10Heat-removal systems, e.g. using circulating fluid or cooling fins
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/4673Plural tanks or compartments with parallel flow
    • Y10T137/4807Tank type manifold [i.e., one tank supplies or receives from at least two others]

Definitions

  • the invention relates to a container in particular for a radioactive substance according to the preamble of claim 1.
  • Such a container is known from DE-OS 33 43 166. Its inner container is in one piece. It contains a rod, which consists of a steel tube filled with boron carbide and which absorbs neutrons to prevent a critical configuration of fissile radioactive substances.
  • the inner container is not to contain any neutron-absorbing rods, since these are gradually becoming less effective, the diameter of the inner container must not exceed a certain limit if a critical configuration is to be avoided. If you want a large filling volume of the inner container, the height of this inner container can be chosen to be very large. A slim inner container with a large height, however, leads to an unwieldy container, in particular filling and emptying the inner container is difficult.
  • the invention has for its object to provide a container that can have a more favorable ratio of diameter to height.
  • a radioactive liquid substance contained in both is spatially separated from one another, which causes neutron-physical decoupling.
  • This decoupling can be further improved by suitable selection of the filler for the filling space.
  • Suitable filler is, for example, natural water, which is a moderator substance, but also has a large capture cross-section for thermal neutrons and also has a shock-absorbing effect and dissipates heat well from the inner container to the outside.
  • the neutron-physical decoupling can be further improved by the main and / or secondary container being made of neutron-absorbing material and / or by the filler for the filling space of the outer container containing a neutron-intensively absorbing substance.
  • the sub-claim 2 is directed to an advantageous development of the container according to claim 1, with which it can be ensured that a filler consisting of a liquid such as water is kept in overpressure in the filling chamber, so that in the event of a leak in the main or secondary container filler penetrates the main or secondary container and radioactive liquid substance is difficult to escape from the main or secondary container.
  • the container has a hollow cylindrical outer container 2, which is a cast part and is provided on the outside with cooling fins 2a.
  • An inner container is arranged within the outer container 2 and has an elongated main container 3 in the form of a hollow cylinder child and six secondary containers 4 in the shape of an elongated hollow cylinder.
  • the longitudinal axes of the main container 3 and the sub-container 4 are parallel to each other, and the main container 3 is attached coaxially to the outer container 2.
  • the main container 3 With its lower end, the main container 3 is held on the inside of the bottom of the outer container 2 in the center thereof with a shock absorber 5. The upper end of the main container 3 is guided through the center of a lid 6, which is screwed tightly to this outer container 2 at the upper end of the outer container 2.
  • the main container 3 On the inside of the cover 6, the main container 3 has an outer flange 7, while on the main container 3 on the outside of the cover 6 there is a slot nut 8.
  • a sleeve 9 made of an elastomer, e.g. Rubber with flanges on both ends.
  • One flange rests on the outer flange 7 of the main container 3, while on the other flange lies the slot nut 8, with which the main container 3 is clamped to the cover 6 with its outer flanges via the sleeve 9.
  • the sleeve 9 thus forms a further shock absorber on its outer flanges.
  • While the main container 3 of the inner container is arranged centrally in the outer container 2 and in a regular hexagon, which is located in a cross section of the outer container 2, the six secondary containers 4 of the inner container are each arranged in a corner of this hexagon. They are separated from the main container 3 and closed at both ends.
  • the main container 3 projects beyond the upper ends with its upper end and the lower ends of the secondary containers with its lower end ter 4.
  • This sub-container 4 are supported with support webs 10 on the main container 3.
  • a connecting pipe 11 with a continuous gradient in the direction towards the lower end of the main container 3 leads to this main container and from the upper end of each of the sub-containers 4 a connecting pipe 12 with a continuous slope in the direction of the upper end of the main container 3 to this main container 3.
  • a further immersion tube 14 leads to the filling and emptying of the filling space 37 in the outer container 2 to the bottom of this outer container 2.
  • a ventilation and ventilation nozzle 15 which closes automatically when a coupling part of one, not shown, is closed Hose line is removed, and which is clearly visible in FIG 3.
  • sealing rings 16 can also be seen, which are located between the cover 6 and the outer container 2.
  • a screw 17 can be seen, with which the lid 6 is screwed onto the outer container 2.
  • a hollow cylinder 19 open on the inside of the cover 6 is screwed tight and sealed with a sealing ring 20.
  • a coaxial coil spring 23 which is supported at one end on the bottom of the hollow cylinder 19 and at the other end on a piston 21 which has a metal bellows 22 surrounding the open end of the hollow cylinder 19 on the inside of the Cover 6 screwed tight and with a sealing ring 24th is sealed.
  • the active surface of the piston 21 consisting of its outer surface thus belongs to the inner surface of the outer container 2.
  • Natural water as a liquid filler is pumped through the immersion pipe 14 into the filling space 37 of the outer container 2 and the coupling part of the hose line, not shown, is uncoupled from the ventilation and ventilation connection 15 when water escapes through this ventilation and ventilation connection 15.
  • This ventilation and ventilation nozzle 15 thereby closes automatically, and by pumping further on the immersion tube 14, the water in the filling space 37 of the outer container 2 receives an overpressure by which the piston 21 compresses the coil spring 23 without the piston 21 being seated on the hollow cylinder 19.
  • a hose line, not shown, for supplying water is decoupled from the immersion tube 14, which has a filler neck, not shown, in the cover 6, which also closes automatically when the coupling part of this hose line is removed from it.
  • the pressure then exerted by the compressed helical spring 20 via the active surface of the piston 21 on the water in the filling space of the outer container 2 maintains the excess pressure in this filling space.
  • the outer container 2 is also provided with a protective cover 25 which is screwed onto the outer container 2 with screws 26 above the cover 6 and is sealed with sealing rings 27 inserted in the outer container 2.
  • This protective cover 25 receives the upper end of the main container 3, the ventilation and ventilation connection 15 and the filler connection (not shown) of the immersion pipe 14 and is foamed on the outside with polyurethane foam 28.
  • a pressure relief valve 40 (or a rupture disk), which leads from the filling space 37 to the outside, can advantageously be attached to the outer container 2.
  • a pressure relief valve 40 (or a rupture disk), which leads from the filling space 37 to the outside, can advantageously be attached to the outer container 2.
  • overpressure valve 40 after the excess pressure that arises in the filling chamber 37, and water vapor escapes to the outside. To form this water vapor, decay heat is removed from the radioactive liquid substance in the inner container.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Packages (AREA)

Description

Die Erfindung betrifft einen Behälter insbesondere für eine radioaktive Substanz entsprechend dem Gattungsbegriff des Patentanspruchs 1.The invention relates to a container in particular for a radioactive substance according to the preamble of claim 1.

Ein derartiger Behälter ist aus der DE-OS 33 43 166 bekannt. Sein Innenbehälter ist einteilig. Er enthält einen Stab, der aus einem mit Borcarbid gefüllten Stahlrohr besteht und der zur Verhinderung einer kritischen Konfiguration von spaltbaren radioaktiven Substanzen Neutronen absorbiert.Such a container is known from DE-OS 33 43 166. Its inner container is in one piece. It contains a rod, which consists of a steel tube filled with boron carbide and which absorbs neutrons to prevent a critical configuration of fissile radioactive substances.

Soll der Innenbehälter aber keine Neutronen absorbierenden Stäbe enthalten, da diese allmählich in ihrer Wirksamkeit nachlassen, so darf der Durchmesser des Innenbehälters einen bestimmten Grenzwert nicht überschreiten, wenn eine kritische Konfiguration sicher vermieden sein soll. Zwar kann, wenn man ein großes Füllvolumen des Innenbehälters wünscht, die Höhe dieses Innenbehälters sehr groß gewählt werden. Ein schlanker Innenbehälter mit großer Höhe führt aber zu einem unhandlichen Behälter, insbesondere ist das Auffüllen und Entleeren des Innenbehälters schwierig.However, if the inner container is not to contain any neutron-absorbing rods, since these are gradually becoming less effective, the diameter of the inner container must not exceed a certain limit if a critical configuration is to be avoided. If you want a large filling volume of the inner container, the height of this inner container can be chosen to be very large. A slim inner container with a large height, however, leads to an unwieldy container, in particular filling and emptying the inner container is difficult.

Der Erfindung liegt die Aufgabe zugrunde, einen Behälter anzugeben, der ein günstigeres Verhältnis von Durchmesser zu Höhe haben kann.The invention has for its object to provide a container that can have a more favorable ratio of diameter to height.

Zur Lösung dieser Aufgabe hat ein Behälter der eingangs erwähnten Art erfindungsgemäß die Merkmale des kennzeichnenden Teiles des Patentanspruchs 1.To achieve this object, a container of the type mentioned at the outset has the features of the characterizing part of patent claim 1.

Durch die Aufteilung des Innenbehälters in einen Hauptbehälter und einen Nebenbehälter wird eine in beiden enthaltene radioaktive flüssige Substanz räumlich voneinander getrennt, wodurch eine neutronenphysikalische Entkoppelung bewirkt wird.By dividing the inner container into a main container and a secondary container, a radioactive liquid substance contained in both is spatially separated from one another, which causes neutron-physical decoupling.

Durch geeignete Auswahl des Füllstoffes für den Füllraum kann diese Entkoppelung noch verbessert werden. Als Füllstoff geeignet ist beispielsweise natürliches Wasser, das eine Moderatorsubstanz ist, aber auch einen großen Einfangsquerschnitt für thermische Neutronen hat und überdies stoßdämpfend wirkt und Wärme gut aus dem Innenbehälter nach außen ableitet. Die neutronenphysikalische Entkoppelung kann noch weiter verbessert werden, indem der Haupt-und/oder Nebenbehälter aus neutronenabsorbierendem Werkstoff gefertigt sind und/oder indem der Füllstoff für den Füllraum des Außenbehälters eine Neutronen verstärkt absorbierende Substanz enthält.This decoupling can be further improved by suitable selection of the filler for the filling space. Suitable filler is, for example, natural water, which is a moderator substance, but also has a large capture cross-section for thermal neutrons and also has a shock-absorbing effect and dissipates heat well from the inner container to the outside. The neutron-physical decoupling can be further improved by the main and / or secondary container being made of neutron-absorbing material and / or by the filler for the filling space of the outer container containing a neutron-intensively absorbing substance.

Der Unteranspruch 2 ist auf eine vorteilhafte Weiterbildung des Behälters nach dem Patentanspruch 1 gerichtet, mit der sichergestellt werden kann, daß ein aus einer Flüssigkeit wie Wasser bestehender Füllstoff im Füllraum auf Überdruck gehalten wird, so daß bei einem Leck im Haupt- oder Nebenbehälter Füllstoff in den Haupt- oder Nebenbehälter eindringt und radioaktive flüssige Substanz nur erschwert aus dem Haupt- oder Nebenbehälter austreten kann.The sub-claim 2 is directed to an advantageous development of the container according to claim 1, with which it can be ensured that a filler consisting of a liquid such as water is kept in overpressure in the filling chamber, so that in the event of a leak in the main or secondary container filler penetrates the main or secondary container and radioactive liquid substance is difficult to escape from the main or secondary container.

Die Erfindung und ihre Vorteile seien anhand der Zeichnung an einem Ausführungsbeispiel näher erläutert:

  • FIG 1 zeigt einen Längsschnitt durch einen erfindungsgemäßen Behälter.
  • FIG 2 zeigt einen Querschnitt durch diesen Behälter entsprechend der strichpunktierten Linie II-II in FIG 1.
  • FIG 3 zeigt vergrößert eine Einzelheit X aus FIG 1.
The invention and its advantages are explained in more detail with reference to the drawing using an exemplary embodiment:
  • 1 shows a longitudinal section through a container according to the invention.
  • 2 shows a cross section through this container according to the dash-dotted line II-II in FIG. 1st
  • 3 shows an enlarged detail X from FIG. 1.

Der Behälter weist einen hohlzylinderförmigen Außenbehälter 2 auf, der ein Gußteil ist und außen am Mantel mit Kühlrippen 2a versehen ist. Innerhalb des Außenbehälters 2 ist ein Innenbehälter angeordnet, der einen hohlzylkinderförmigen langgestreckten Hauptbehälter 3 und sechs langgestreckte hohlzylinderförmige Nebenbehälter 4 aufweist. Die Längsachsen des Hauptbehälters 3 und der Nebenbehälter 4 sind zueinander parallel, und der Hauptbehälter 3 ist koaxial zum Außenbehälter 2 angebracht.The container has a hollow cylindrical outer container 2, which is a cast part and is provided on the outside with cooling fins 2a. An inner container is arranged within the outer container 2 and has an elongated main container 3 in the form of a hollow cylinder child and six secondary containers 4 in the shape of an elongated hollow cylinder. The longitudinal axes of the main container 3 and the sub-container 4 are parallel to each other, and the main container 3 is attached coaxially to the outer container 2.

Mit seinem Unterende ist der Hauptbehälter 3 an der Innenseite des Bodens des Außenbehälters 2 in deren Zentrum mit einem Stoßdämpfer 5 gehaltert. Das Oberende des Hauptbehälters 3 ist durch das Zentrum eines Deckels 6 geführt, der am Oberende des Außenbehälters 2 dicht mit diesem Außenbehälter 2 verschraubt ist. Auf der Innenseite des Deckels 6 weist der Hauptbehälter 3 einen Außenflansch 7 auf, während auf dem Hauptbehälter 3 auf der Außenseite des Deckels 6 eine Nutenmutter 8 sitzt. Ferner sitzt auf dem Hauptbehälter 3 innerhalb des Deckels eine Hülse 9 aus einem Elastomer, z.B. Kautschuk, die an beiden Enden Flansche aufweist. Der eine Flansch liegt am Außenflansch 7 des Hauptbehälters 3 an, während am anderen Flansch die Nutenmutter 8 anliegt, mit der der Hauptbehälter 3 über die Hülse 9 mit ihren Außenflanschen am Deckel 6 festgespannt ist. Die Hülse 9 bildet somit ihren Außenflanschen einen weiteren Stoßdämpfer.With its lower end, the main container 3 is held on the inside of the bottom of the outer container 2 in the center thereof with a shock absorber 5. The upper end of the main container 3 is guided through the center of a lid 6, which is screwed tightly to this outer container 2 at the upper end of the outer container 2. On the inside of the cover 6, the main container 3 has an outer flange 7, while on the main container 3 on the outside of the cover 6 there is a slot nut 8. Furthermore, a sleeve 9 made of an elastomer, e.g. Rubber with flanges on both ends. One flange rests on the outer flange 7 of the main container 3, while on the other flange lies the slot nut 8, with which the main container 3 is clamped to the cover 6 with its outer flanges via the sleeve 9. The sleeve 9 thus forms a further shock absorber on its outer flanges.

Während der Hauptbehälter 3 des Innenbehälters zentral im Außenbehälter 2 und in einem regelmäßigen Sechseck angeordnet ist, das sich in einem Querschnitt des Außenbehälters 2 befindet, sind die sechs Nebenbehälter 4 des Innenbehälters jeweils in einer Ecke dieses Sechsecks angeordnet. Sie sind vom Hauptbehälter 3 getrennt und an beiden Enden verschlossen. Der Hauptbehälter 3 überragt mit seinem Oberende die Oberenden und mit seinem Unterende die Unterenden der Nebenbehäl ter 4. Diese Nebenbehälter 4 sind mit Stützstegen 10 am Hauptbehälter 3 abgestützt. Ferner führt vom Unterende jedes der sechs Nebenbehälter 4 ein Verbindungsrohr 11 mit durchgehendem Gefälle in Richtung zum Unterende des Hauptbehälters 3 zu diesem Hauptbehälter und vom Oberende jedes der Nebenbehälter 4 ein Verbindungsrohr 12 mit durchgehender Steigung in Richtung zum Oberende des Hauptbehälters 3 zu diesem Hauptbehälter 3.While the main container 3 of the inner container is arranged centrally in the outer container 2 and in a regular hexagon, which is located in a cross section of the outer container 2, the six secondary containers 4 of the inner container are each arranged in a corner of this hexagon. They are separated from the main container 3 and closed at both ends. The main container 3 projects beyond the upper ends with its upper end and the lower ends of the secondary containers with its lower end ter 4. This sub-container 4 are supported with support webs 10 on the main container 3. Furthermore, from the lower end of each of the six sub-containers 4, a connecting pipe 11 with a continuous gradient in the direction towards the lower end of the main container 3 leads to this main container and from the upper end of each of the sub-containers 4 a connecting pipe 12 with a continuous slope in the direction of the upper end of the main container 3 to this main container 3.

Vom Oberende des Hauptbehälters 3 führt bis zu dessen Boden ein Tauchrohr 13 zum Auffüllen und Entleeren des Innenbehälters mit bzw. von einer flüssigen radioaktiven Substanz, während ein Ent- und Belüftungsrohr am Oberende des Hauptbehälters 3 nicht erkennbar ist.From the upper end of the main container 3 leads to the bottom of a dip tube 13 for filling and emptying the inner container with or from a liquid radioactive substance, while a ventilation and ventilation tube at the upper end of the main container 3 is not recognizable.

Vom Deckel 6 führt ein weiteres Tauchrohr 14 zum Auffüllen und Entleeren des Füllraums 37 im Außenbehälter 2 zum Boden dieses Außenbehälters 2. Im Deckel 6 ist ferner ein Ent- und Belüftungsstutzen 15 angeordnet, der sich selbsttätig abschließt, wenn von ihm ein Kupplungsteil einer nicht dargestellten Schlauchleitung abgenommen wird, und der in FIG 3 deutlich erkennbar ist. In FIG 3 sind auch Dichtungsringe 16 erkennbar, die sich zwischen dem Deckel 6 und dem Außenbehälter 2 befinden. Ferner ist eine Schraube 17 zu sehen, mit der der Deckel 6 am Außenbehälter 2 festgeschraubt ist.From the cover 6, a further immersion tube 14 leads to the filling and emptying of the filling space 37 in the outer container 2 to the bottom of this outer container 2. In the cover 6 there is also a ventilation and ventilation nozzle 15, which closes automatically when a coupling part of one, not shown, is closed Hose line is removed, and which is clearly visible in FIG 3. In FIG 3, sealing rings 16 can also be seen, which are located between the cover 6 and the outer container 2. Furthermore, a screw 17 can be seen, with which the lid 6 is screwed onto the outer container 2.

In einer Durchführung 18 im Deckel 6 ist der abgeschlossene Boden eines an der Innenseite des Deckels 6 offenen Hohlzylinders 19 festgeschraubt und mit einem Dichtungsring 20 abgedichtet. Innerhalb dieses Hohlzylinders 19 befindet sich eine koaxiale Schraubenfeder 23, die sich mit einem Ende am Boden des Hohlzylinders 19 und mit dem anderen Ende an einem Kolben 21 abstützt, der über einen das offene Ende des Hohlzylinders 19 umschließenden Faltenbalg 22 aus Metall an der Innenseite des Deckels 6 festgeschraubt und mit einem Dichtungsring 24 abgedichtet ist. Die aus seiner Außenfläche bestehende Wirkfläche des Kolbens 21 gehört somit zur Innenfläche des Außenbehälters 2.In a bushing 18 in the cover 6, the closed bottom of a hollow cylinder 19 open on the inside of the cover 6 is screwed tight and sealed with a sealing ring 20. Within this hollow cylinder 19 there is a coaxial coil spring 23, which is supported at one end on the bottom of the hollow cylinder 19 and at the other end on a piston 21 which has a metal bellows 22 surrounding the open end of the hollow cylinder 19 on the inside of the Cover 6 screwed tight and with a sealing ring 24th is sealed. The active surface of the piston 21 consisting of its outer surface thus belongs to the inner surface of the outer container 2.

Durch das Tauchrohr 14 wird natürliches Wasser als flüssiger Füllstoff in den Füllraum 37 des Außenbehälters 2 gepumpt und das Kupplungsteil der nicht dargestellten Schlauchleitung vom Ent- und Belüftungsstutzen 15 abgekoppelt, wenn durch diesen Ent- und Belüftungsstutzen 15 Wasser austritt. Dieser Ent- und Belüftungsstutzen 15 schließt dadurch selbstätig, und durch Weiterpumpen am Tauchrohr 14 erhält das Wasser im Füllraum 37 des Außenbehälters 2 einen Überdruck, durch den der Kolben 21 die Schraubenfeder 23 zusammendrückt, ohne daß der Kolben 21 auf dem Hohlzylinder 19 aufsitzt. Anschließend wird auch eine nicht dargestellte Schlauchleitung zum Zuführen von Wasser vom Tauchrohr 14 abgekoppelt, das einen nicht dargestellten Füllstutzen im Deckel 6 aufweist, der sich ebenfalls selbsttätig abschließt, wenn das Kupplungsteil dieser Schlauchleitung von ihm abgenommen wird. Der von der zusammengepreßten Schraubenfeder 20 über die Wirkfläche des Kolbens 21 auf das Wasser im Füllraum des Außenbehälters 2 danach ausgeübte Druck hält den Überdruck in diesem Füllraum aufrecht.Natural water as a liquid filler is pumped through the immersion pipe 14 into the filling space 37 of the outer container 2 and the coupling part of the hose line, not shown, is uncoupled from the ventilation and ventilation connection 15 when water escapes through this ventilation and ventilation connection 15. This ventilation and ventilation nozzle 15 thereby closes automatically, and by pumping further on the immersion tube 14, the water in the filling space 37 of the outer container 2 receives an overpressure by which the piston 21 compresses the coil spring 23 without the piston 21 being seated on the hollow cylinder 19. Subsequently, a hose line, not shown, for supplying water is decoupled from the immersion tube 14, which has a filler neck, not shown, in the cover 6, which also closes automatically when the coupling part of this hose line is removed from it. The pressure then exerted by the compressed helical spring 20 via the active surface of the piston 21 on the water in the filling space of the outer container 2 maintains the excess pressure in this filling space.

Der Außenbehälter 2 ist noch mit einem Schutzdeckel 25 versehen, der über dem Deckel 6 mit Schrauben 26 am Außenbehälter 2 festgeschraubt und mit im Außenbehälter 2 eingelegten Dichtungsringen 27 abgedichtet ist. Dieser Schutzdeckel 25 nimmt das Oberende des Hauptbehälters 3, den Ent- und Belüftungsstutzen 15 sowie den nicht dargestellten Füllstutzen des Tauchrohres 14 auf und ist auf seiner Außenseite mit Polyurethanschaum 28 ausgeschäumt.The outer container 2 is also provided with a protective cover 25 which is screwed onto the outer container 2 with screws 26 above the cover 6 and is sealed with sealing rings 27 inserted in the outer container 2. This protective cover 25 receives the upper end of the main container 3, the ventilation and ventilation connection 15 and the filler connection (not shown) of the immersion pipe 14 and is foamed on the outside with polyurethane foam 28.

Am Außenbehälter 2 kann günstigerweise noch ein Überdruckventil 40 (oder eine Berstscheibe) angebracht sein, das vom Füllraum 37 nach außen führt. Im Falle eines Brandes gibt das Überdruck ventil 40 dem im Füllraum 37 entstehenden zu hohen Überdruck schließlich nach, und Wasserdampf entweicht nach außen. Zur Bildung dieses Wasserdampfes wird Zerfallswärme von der radioaktiven flüssigen Substanz im Innenbehälter abgeführt.A pressure relief valve 40 (or a rupture disk), which leads from the filling space 37 to the outside, can advantageously be attached to the outer container 2. In the event of a fire, there is overpressure valve 40 after the excess pressure that arises in the filling chamber 37, and water vapor escapes to the outside. To form this water vapor, decay heat is removed from the radioactive liquid substance in the inner container.

Claims (8)

  1. Container, in particular for a liquid radioactive and/or fissionable substance, having an inner container for receiving this substance and an outer container in which the inner container is located, characterised in that the inner container has a main container (3) and a separate, sealed secondary container (4), in that the main container (3) projects beyond the upper end of the secondary container (4) with its upper end and projects beyond the lower end of the secondary container with its lower end, in the longitudinal direction, in that a connecting tube (11) leads from the lower end of the secondary container (4) with a continuous downward inclination in the direction of the lower end of the main container (3) to the main container (3), in that a connecting tube (12) leads from the upper end of the secondary container (4) with a continuous upward inclination in the direction of the upper end of the main container (3) to the main container (3), and in that the outer container (2) forms a filling chamber (37) for filling with heat-conductive filler material.
  2. Container according to claim 1, characterised in that a spring-loaded plunger (21), whose working surface is part of the inner surface of the outer container (2), is fitted to the filling chamber (37) of the outer container.
  3. Container according to claim 2, characterised in that the filler material is a liquid.
  4. Container according to claim 3, characterised in that the liquid is at a higher pressure.
  5. Container according to claim 1, characterised in that the inner container is mounted on the inner surface of the outer container (2) by means of shock absorbers (5;9) or rigid webs.
  6. Container according to claim 1, characterised in that the secondary container (4) is supported on the main container (3) with support webs (10).
  7. Container according to claim 1, characterised in that the main container (3) is arranged centrally in the outer container (2) and in a regular polygon, preferably a hexagon, which is in a cross section of the outer container (2), and in that the secondary container (4) is arranged in a corner of this polygon.
  8. Container according to claim 1, characterised in that an excess pressure valve (40) or a rupture disc are fitted on the outer container (2) leading from the filling chamber (37) to the outside.
EP87116095A 1986-11-13 1987-11-02 Container, especially for radioactive matter Expired - Lifetime EP0269885B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863638702 DE3638702A1 (en) 1986-11-13 1986-11-13 CONTAINER IN PARTICULAR FOR A RADIOACTIVE SUBSTANCE
DE3638702 1986-11-13

Publications (2)

Publication Number Publication Date
EP0269885A1 EP0269885A1 (en) 1988-06-08
EP0269885B1 true EP0269885B1 (en) 1991-02-20

Family

ID=6313825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116095A Expired - Lifetime EP0269885B1 (en) 1986-11-13 1987-11-02 Container, especially for radioactive matter

Country Status (4)

Country Link
US (1) US4836975A (en)
EP (1) EP0269885B1 (en)
JP (1) JPS63135898A (en)
DE (2) DE3638702A1 (en)

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FR2698205B1 (en) * 1992-11-19 1995-02-03 Sgn Soc Gen Tech Nouvelle Storage tank for an active solution of fissile materials.
GB9609304D0 (en) * 1996-05-03 1996-07-10 British Nuclear Fuels Plc Improvements in and relating to fuel transportation
US20010011711A1 (en) * 1996-05-03 2001-08-09 Graham Nicholson Container for nuclear fuel transportation
FR2861889B1 (en) * 2003-11-03 2006-02-10 Cogema Logistics DEVICE AND METHOD FOR PACKAGING NUCLEAR FUEL ASSEMBLIES WITH DOUBLE BARRIER CONTAINMENT
US7199375B2 (en) * 2004-10-12 2007-04-03 Bard Brachytherapy, Inc. Radiation shielding container that encloses a vial of one or more radioactive seeds
FR2896614B1 (en) * 2006-01-25 2010-10-15 Commissariat Energie Atomique METHOD AND DEVICE FOR POOL CLOSURE OF A LOADED CASE WITH IRRADIA NUCLEAR FUEL
EP2342719B1 (en) * 2008-09-25 2014-09-03 Columbiana Hi Tech LLC Container for transporting and storing uranium hexafluoride
US8718221B2 (en) * 2009-12-16 2014-05-06 Holtec International, Inc. Method of transferring high level radioactive materials, and system for the same
US9018432B2 (en) * 2012-10-25 2015-04-28 Barnhardt Manufacturing Company Processing radioactive waste for shipment and storage
RU2582576C1 (en) * 2015-04-21 2016-04-27 Федеральное Государственное унитарное предприятие "Российский Федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики - ФГУП "РФЯЦ-ВНИИЭФ" Container for transportation and/or storage of spent nuclear fuel
US11443862B2 (en) 2020-04-01 2022-09-13 Holtec International Storage system for radioactive nuclear waste with pressure surge protection
CN112599273B (en) * 2020-10-27 2023-03-07 中国原子能科学研究院 Container for storing plutonium solution sample

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BE569126A (en) * 1958-08-30
NL266686A (en) * 1960-07-06
US3573462A (en) * 1969-02-04 1971-04-06 Atomic Energy Commission Sealed container with pressure relief for hazardous material
FR2113805B1 (en) * 1970-11-17 1976-03-19 Transnucleaire
DE2300620A1 (en) * 1973-01-08 1974-07-11 Transnuklear Gmbh Shielded transport flask - for plutonium nitrate or uranyl nitrate solutions
GB1554605A (en) * 1976-08-25 1979-10-24 Atomic Energy Authority Uk Assembly for the transport of fuel elements
DE3028040C2 (en) * 1980-07-24 1984-08-23 Nukem Gmbh, 6450 Hanau Arrangement for the storage of radioactive waste liquids
US4738799A (en) * 1983-10-28 1988-04-19 Westinghouse Electric Corp. Permanent disposal of radioactive particulate waste
DE3343166A1 (en) * 1983-11-29 1985-06-05 Alkem Gmbh, 6450 Hanau CONTAINERS IN PARTICULAR FOR RADIOACTIVE SUBSTANCES
US4747512A (en) * 1987-06-19 1988-05-31 Lo Kin K Transportation packaging for liquids

Also Published As

Publication number Publication date
US4836975A (en) 1989-06-06
JPS63135898A (en) 1988-06-08
DE3638702A1 (en) 1988-05-26
EP0269885A1 (en) 1988-06-08
DE3768073D1 (en) 1991-03-28

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