WO1994001871A1 - Container for the transport and terminal storage of nuclear-fuel rods - Google Patents

Container for the transport and terminal storage of nuclear-fuel rods Download PDF

Info

Publication number
WO1994001871A1
WO1994001871A1 PCT/AT1993/000118 AT9300118W WO9401871A1 WO 1994001871 A1 WO1994001871 A1 WO 1994001871A1 AT 9300118 W AT9300118 W AT 9300118W WO 9401871 A1 WO9401871 A1 WO 9401871A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
jacket
fuel rods
bronze
container according
Prior art date
Application number
PCT/AT1993/000118
Other languages
German (de)
French (fr)
Inventor
Theodor HÄRING
Original Assignee
HÄRING, Ursel
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 HÄRING, Ursel filed Critical HÄRING, Ursel
Priority to AT93914546T priority Critical patent/ATE145298T1/en
Priority to EP93914546A priority patent/EP0650632B1/en
Priority to DE59304493T priority patent/DE59304493D1/en
Publication of WO1994001871A1 publication Critical patent/WO1994001871A1/en

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
    • G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal
    • G21F5/008—Containers for fuel elements

Definitions

  • the present invention relates to a container for the transport and final storage of atomic fuel rods.
  • Repository containers made of titanium, tungsten, nickel or similar metals are known, but these metals are not sufficiently available and are very expensive to manufacture.
  • the aim of the invention is therefore to create a container for the transport and final storage of atomic fuel rods which is inexpensive to manufacture and which has an excellent shielding effect against radioactive radiation, an extremely long life and good mechanical strength.
  • This goal is achieved with a container, which is characterized by at least one shielding jacket made of cast bronze, preferably CuPbl5Sn, for covering the fuel rods and at least one additional shielding jacket made of sintered magnetic stones.
  • Cast bronze is a much cheaper starting material compared to the metals mentioned. Excavations have shown that this metal has survived for about 4000 years without any damage and without material fatigue. It offers excellent shielding against the residual radiation emerging from the fuel rods.
  • the sintered magnesite stones have excellent mechanical strength over a long period of time and are resistant to high temperatures, so that a possible temperature development inside the container can also be kept under control. In addition, the sintered magnesite stones also contribute to good shielding of the radioactive radiation. It should be noted that any type of concrete sheathing has been deliberately dispensed with, because concrete has become brittle and therefore porous over the course of decades, so that shielding is no longer guaranteed. In contrast to this, the shielding effect is retained over a long time in the solution according to the invention.
  • the container is provided with an outer casing made of stainless steel. This increases the long-term corrosion resistance of the container.
  • Fig. 1 shows a cross section through a first embodiment
  • FIG. 2 shows a longitudinal section through a second embodiment.
  • the container comprises an outer casing 1, seen from the outside inwards _ _
  • CuPbl5Sn has proven to be a particularly suitable bronze casting alloy. Inside the container, atomic fuel rods 5 are kept on.
  • Fig. 2 shows a further embodiment of the container according to the Invention with a sequence - seen from the outside inwards - from the outer bronze cast shell 2, the outer magnesite mold stone shell 3, the inner bronze cast shell 4 and the inner magnesite shaped stone shell 3 '.
  • Atomic fuel rods 5 are stored inside the container.
  • the container has a cylindrical shape and is equipped with a closing cover 10, which may also have several layers of bronze and / or magnesite stones. Magnets 11 are embedded in the bottom 1 and in the lid 10 of the container.
  • the shape of the container and the number and sequence of the shielding sheaths can be arbitrarily changed within the scope of the invention.

Abstract

Proposed is a container for the transport and terminal storage of nuclear-fuel rods, the container having at least one shielding surround (2, 4) made of cast bronze, preferably CuPb15Sn, designed to enclose the fuel rods (5) and at least one additional shielding surround (3, 3') made of shaped sintered-magnesite bricks.

Description

Behälter zum Transport und zur Endlagerung von atomaren Brenn¬ stäben Containers for the transport and final storage of atomic fuel rods
Die vorliegende Erfindung betrifft einen Behälter zum Transport und zur Endlagerung von atomaren Brennstäben.The present invention relates to a container for the transport and final storage of atomic fuel rods.
In den letzten Jahren ist immer wieder davon die Rede, daß der Atommüll nicht richtig entsorgt wird und somit bei mangel¬ hafter Entsorgung eine Gefahr für die Menschheit darstellt. Deutsche Wissenschafter der Kernenergie haben große Mängel bei der Entsorgung des Atommülls erkannt und aufgezeigt, daß sich bis zum Jahre 2000 der Atommüll verdoppeln wird. Es ist eine Tatsache, daß es bisher keine zuverlässigen Endlagerbehälter gibt, sondern nur Zwischenlagerbehälter, die gestapelt in auf¬ gelassenen Gruben untergebracht werden. Experten geben zu, daß die Behälter oftmals durch das Gewicht der Stapelung - vier bis acht Behälter übereinander - bersten, so daß eine Kontrolle durch das Personal in den Lagerhallten kaum möglich ist. Die Halbwertzeit des Atommülls beträgt einige hundert bis tausend Jahre, so daß zur Endlagerung Materialien für die Container verwendet werden müssen, die nach menschlichem Ermessen diese Zeit überdauern.In recent years there has been repeated talk that the nuclear waste is not properly disposed of and thus represents a danger to humanity if it is not properly disposed of. German nuclear energy scientists have identified major shortcomings in the disposal of nuclear waste and have shown that nuclear waste will double by the year 2000. It is a fact that so far there have been no reliable repository containers, but only intermediate storage containers that are stacked in abandoned pits. Experts admit that the containers often burst due to the weight of the stack - four to eight containers on top of one another - so that control by the staff in the warehouse is hardly possible. The half-life of nuclear waste is a few hundred to a thousand years, so that materials for the containers must be used for disposal, which, according to human judgment, survive this time.
Es sind Endlagerbehälter aus Titan, Wolfram, Nickel oder ähnlichen Metallen bekannt, doch sind diese Metalle nicht in ausreichendem Maße vorhanden und in der Fertigung sehr kosten- aufwendig.Repository containers made of titanium, tungsten, nickel or similar metals are known, but these metals are not sufficiently available and are very expensive to manufacture.
Die Erfindung setzt sich daher zum Ziel, einen kostengün¬ stig zu fertigenden Behälter zum Transport und zur Endlagerung von atomaren Brennstäben zu schaffen, der eine ausgezeichnete Abschirmungswirkung gegen radioaktive Strahlung, eine extrem lange Lebensdauer und eine gute mechanische Festigkeit auf¬ weist. Dieses Ziel wird mit einem Behälter erreicht, der sich auszeichnet durch zumindest einen Abschirmungsmantel aus Bron¬ zeguß, vorzugsweise CuPbl5Sn, zur Umhüllung der Brennstäbe und zumindest einen weiteren Abschirmungsmantel aus gesinterten Ma- gnetsitformsteinen.The aim of the invention is therefore to create a container for the transport and final storage of atomic fuel rods which is inexpensive to manufacture and which has an excellent shielding effect against radioactive radiation, an extremely long life and good mechanical strength. This goal is achieved with a container, which is characterized by at least one shielding jacket made of cast bronze, preferably CuPbl5Sn, for covering the fuel rods and at least one additional shielding jacket made of sintered magnetic stones.
Bronzeguß ist im Vergleich zu den genannten Metallen ein wesentlich kostengünstigeres Ausgangsmaterial. Ausgrabungen ha¬ ben ergeben, daß dieses Metall bereits ca. 4000 Jahre ohne jede Beschädigung und ohne Materialermüdung überdauert. Es bietet eine ausgezeichnete Abschirmung gegenüber der aus den Brennstä¬ ben austretenden Reststrahlung. Die gesinterten Magnesitform¬ steine besitzen ausgezeichnete mechanische Festigkeit über lange Zeit und sind hochtemperaturbeständig, so daß auch eine mögliche Temperaturentwicklung im Inneren des Behälters unter Kontrolle gehalten werden kann. Überdies tragen die Sinterma¬ gnesitformsteine ebenfalls zu einer guten Abschirmung der ra¬ dioaktiven Strahlung bei. Es ist zu beachten, daß bewußt auf jegliche Art von Betonu mantelung verzichtet wurde, weil Beton im Verlauf von Jahrzehnten brüchig und damit porös wird, so daß eine Abschirmung nicht mehr gewährleistet ist. Im Gegensatz da¬ zu bleibt bei der erfindungsgemäßen Lösung die Abschirmwirkung über lange Zeit erhalten.Cast bronze is a much cheaper starting material compared to the metals mentioned. Excavations have shown that this metal has survived for about 4000 years without any damage and without material fatigue. It offers excellent shielding against the residual radiation emerging from the fuel rods. The sintered magnesite stones have excellent mechanical strength over a long period of time and are resistant to high temperatures, so that a possible temperature development inside the container can also be kept under control. In addition, the sintered magnesite stones also contribute to good shielding of the radioactive radiation. It should be noted that any type of concrete sheathing has been deliberately dispensed with, because concrete has become brittle and therefore porous over the course of decades, so that shielding is no longer guaranteed. In contrast to this, the shielding effect is retained over a long time in the solution according to the invention.
Es sei an dieser Stelle erwähnt, daß es aus der DE-OS 36 28 855 bekannt ist, zur hitzebeständigen Auskleidung von Kernkraftwerken einen Gebäudeboden aus keramischen Magne¬ sitformsteinen vorzusehen.It should be mentioned at this point that it is known from DE-OS 36 28 855 to provide a building floor made of ceramic magnet stones for the heat-resistant lining of nuclear power plants.
Ferner sei erwähnt, daß in der älteren, nicht vorveröf¬ fentlichten österreichischen Patentanmeldung A 72/92 der glei- chen Anmelder ein Behälter zum Transport und zur Endlagerung von atomaren Brennstäben vorgeschlagen wird, der sich auszeich¬ net durch zumindest einen Abschirmungsmantel aus gesinterten Magnesitformsteinen zur Umhüllung der Brennstäbe und zumindest einen weiteren Abschirmungsmantel aus vorzugsweise feuchtem und mit Salz vermischtem Feinton.Furthermore, it should be mentioned that in the older, not previously published Austrian patent application A 72/92 by the same applicant, a container for the transport and final storage of atomic fuel rods is proposed, which is characterized by at least one shielding jacket made of sintered magnesite bricks Coating of the fuel rods and at least one further shielding jacket made of preferably moist and mixed with fine clay.
Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung ist der Behälter mit einer äußeren Ummantelung aus Edelstahl versehen. Dies erhöht die Langzeitkorrosionsbestän¬ digkeit des Behälters. Weitere Merkmale der Erfindung ergeben sich aus den Unter- .ansprüchen und der nachfolgenden Beschreibung zweier bevorzug¬ ter Ausführungsformen an Hand der beigeschlossenen Zeichnungen, in denenAccording to a preferred embodiment of the present invention, the container is provided with an outer casing made of stainless steel. This increases the long-term corrosion resistance of the container. Further features of the invention emerge from the subclaims and the following description of two preferred embodiments with reference to the accompanying drawings, in which:
Fig. 1 einen Querschnitt durch eine erste Ausführungsform undFig. 1 shows a cross section through a first embodiment and
Fig. 2 einen Längsschnitt durch eine zweite Ausführungs¬ form zeigt.2 shows a longitudinal section through a second embodiment.
Bei der Ausführungsform nach Fig. 1 umfaßt der Behälter von außen nach innen gesehen eine äußere Ummantelung 1 aus _ _In the embodiment according to FIG. 1, the container comprises an outer casing 1, seen from the outside inwards _ _
Edelstahl, einen äußeren Bronzegußmantel 2, einen Mantel 3 au gesinterten Magnesitformsteinen und einen inneren Bronzegußman tel 4. Als geeignete Bronzegußlegierung hat sich insbesonder CuPbl5Sn erwiesen. Im Inneren des Behälters werden atomare Brennstäbe 5 auf bewahrt.Stainless steel, an outer bronze casting jacket 2, a jacket 3 made of sintered magnesite stones and an inner bronze casting jacket 4. CuPbl5Sn has proven to be a particularly suitable bronze casting alloy. Inside the container, atomic fuel rods 5 are kept on.
Fig. 2 zeigt eine weitere Ausführungsform des erfindungs gemäßen Behälters mit einer Abfolge - von außen nach innen ge sehen - von äußerem Bronzegußmantel 2, äußerem Magnesitform steinmantel 3, innerem Bronzegußmantel 4 und innerem Magnesit formsteinmantel 3'. Im Inneren des Behälters sind atomar Brennstäbe 5 aufbewahrt.Fig. 2 shows a further embodiment of the container according to the Invention with a sequence - seen from the outside inwards - from the outer bronze cast shell 2, the outer magnesite mold stone shell 3, the inner bronze cast shell 4 and the inner magnesite shaped stone shell 3 '. Atomic fuel rods 5 are stored inside the container.
Der Behälter besitzt Zylinderform und ist mit einem Ver schlußdeckel 10 ausgestattet, der ebenfalls mehrere Lagen Bron zeguß und/oder Magnesitformsteine aufweisen kann. Im Boden 1 und im Deckel 10 des Behälters sind Magnete 11 eingebettet.The container has a cylindrical shape and is equipped with a closing cover 10, which may also have several layers of bronze and / or magnesite stones. Magnets 11 are embedded in the bottom 1 and in the lid 10 of the container.
Die Form des Behälters und die Anzahl und Abfolge der Ab schirmungsmäntel kann im Rahmen der Erfindung beliebig abgewan delt werden. The shape of the container and the number and sequence of the shielding sheaths can be arbitrarily changed within the scope of the invention.

Claims

Patentansprüche: Claims:
1. Behälter zum Transport und zur Endlagerung von atoma¬ ren Brennstäben, gekennzeichnet durch zumindest einen Abschir- 'mungsmantel (2, 4) aus Bronzeguß, vorzugsweise CuPbl5Sn, zur Umhüllung der Brennstäbe (5) und zumindest einen weiteren Ab- schirmungsmantel (3, 3') aus gesinterten Magnesitformsteinen.1. Container for the transport and disposal of atoma¬ ren fuel rods, characterized by at least one shield- 'mung coat (2, 4) made of cast bronze, preferably CuPbl5Sn, for encasing the fuel rods (5) and at least one further exhaust schirmungsmantel (3, 3 ') made of sintered magnesite stones.
2. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß er mit einer äußeren Ummantelung (1) aus Edelstahl versehen ist.2. Container according to claim 1, characterized in that it is provided with an outer casing (1) made of stainless steel.
3. Behälter nach Anspruch 2, dadurch gekennzeichnet, daß von außen nach innen gesehen eine Edelstahlummantelung (1), ein äußerer Bronzegußmantel (2), ein Magnesitformsteinmantel (3) und ein innerer Bronzegußmantel (4) aufeinanderfolgen. 3. Container according to claim 2, characterized in that seen from the outside inwards, a stainless steel casing (1), an outer bronze cast jacket (2), a magnesite stone jacket (3) and an inner bronze cast jacket (4) follow one another.
4. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß von außen nach innen gesehen ein äußerer Bronzegußmantel (2), ein äußerer Magnesitformsteinmantel (3) , ein innerer Bronzegu߬ mantel (4) und ein innerer Magnesitformsteinmantel (3') aufein¬ anderfolgen. 4. A container according to claim 1, characterized in that seen from the outside inwards, an outer bronze cast jacket (2), an outer magnesite stone jacket (3), an inner bronze casting jacket (4) and an inner magnesite stone jacket (3 ') follow one another.
5. Behälter nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß er Zylinderform besitzt und mit einem mehr¬ lagigen Verschlußdeckel (10) ausgestattet ist.5. Container according to one of claims 1 to 4, characterized in that it has a cylindrical shape and is equipped with a multilayer closure cover (10).
6. Behälter nach Anspruch 5, dadurch gekennzeichnet, daß in seinem Boden (12) und seinem Deckel (10) Magnete (11) einge- bettet sind. 6. Container according to claim 5, characterized in that in its bottom (12) and its cover (10) magnets (11) are embedded.
PCT/AT1993/000118 1992-07-13 1993-07-13 Container for the transport and terminal storage of nuclear-fuel rods WO1994001871A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT93914546T ATE145298T1 (en) 1992-07-13 1993-07-13 CONTAINERS FOR THE TRANSPORT AND FINAL STORAGE OF NUCLEAR FUELS
EP93914546A EP0650632B1 (en) 1992-07-13 1993-07-13 Container for the transport and terminal storage of nuclear-fuel rods
DE59304493T DE59304493D1 (en) 1992-07-13 1993-07-13 CONTAINER FOR THE TRANSPORT AND FINAL STORAGE OF ATOMIC FUEL TUBES

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1428/92 1992-07-13
AT0142892A AT398012B (en) 1992-07-13 1992-07-13 CONTAINER FOR THE TRANSPORT AND FINAL STORAGE OF ATOMIC FUEL TUBES

Publications (1)

Publication Number Publication Date
WO1994001871A1 true WO1994001871A1 (en) 1994-01-20

Family

ID=3513695

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1993/000118 WO1994001871A1 (en) 1992-07-13 1993-07-13 Container for the transport and terminal storage of nuclear-fuel rods

Country Status (5)

Country Link
EP (1) EP0650632B1 (en)
AT (2) AT398012B (en)
CZ (1) CZ281739B6 (en)
DE (1) DE59304493D1 (en)
WO (1) WO1994001871A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA002430B1 (en) * 1999-12-15 2002-04-25 Гнб Гезелльшафт Фюр Нуклеар-Бехэльтер Мбх Container for shipping and/or storing tradioactive heat releasing materials and method for producing the same
US6770897B2 (en) 1996-05-03 2004-08-03 British Nuclear Fuels Plc Container for nuclear fuel transportation
US8049194B2 (en) 1996-05-03 2011-11-01 Uranium Asset Management Limited Container for nuclear fuel transportation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092679A1 (en) * 1982-04-22 1983-11-02 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH Container for radioactive wastes
EP0205060A2 (en) * 1985-06-07 1986-12-17 Gattys Technique S.A. Radiation-protective container for the transport and disposal of radioactive materials, and method for its production
DE3628855A1 (en) * 1986-08-25 1988-03-10 Peter Dr Ing Niedner Process and device for safeguarding the surroundings of nuclear power stations in the case of core meltdowns

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092679A1 (en) * 1982-04-22 1983-11-02 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH Container for radioactive wastes
EP0205060A2 (en) * 1985-06-07 1986-12-17 Gattys Technique S.A. Radiation-protective container for the transport and disposal of radioactive materials, and method for its production
DE3628855A1 (en) * 1986-08-25 1988-03-10 Peter Dr Ing Niedner Process and device for safeguarding the surroundings of nuclear power stations in the case of core meltdowns

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6770897B2 (en) 1996-05-03 2004-08-03 British Nuclear Fuels Plc Container for nuclear fuel transportation
US6825483B2 (en) 1996-05-03 2004-11-30 British Nuclear Fuels Plc Container for nuclear fuel transportation
US8049194B2 (en) 1996-05-03 2011-11-01 Uranium Asset Management Limited Container for nuclear fuel transportation
EA002430B1 (en) * 1999-12-15 2002-04-25 Гнб Гезелльшафт Фюр Нуклеар-Бехэльтер Мбх Container for shipping and/or storing tradioactive heat releasing materials and method for producing the same

Also Published As

Publication number Publication date
EP0650632A1 (en) 1995-05-03
EP0650632B1 (en) 1996-11-13
DE59304493D1 (en) 1996-12-19
ATA142892A (en) 1993-12-15
CZ227794A3 (en) 1995-01-18
CZ281739B6 (en) 1997-01-15
AT398012B (en) 1994-08-25
ATE145298T1 (en) 1996-11-15

Similar Documents

Publication Publication Date Title
DE3107642C2 (en)
DE102009025584A1 (en) A method of compacting a first powder material and a second powder material
EP0092679B1 (en) Container for radioactive wastes
EP0650632B1 (en) Container for the transport and terminal storage of nuclear-fuel rods
DE2906815A1 (en) INDUCTION POT OVEN AND METHOD FOR THE PRODUCTION THEREOF
EP0081660B1 (en) Moulded body for encapsulating spent nuclear fuel elements, and process for manufacturing this body
DE3144754A1 (en) MOLDED BODY FOR INTEGRATING RADIOACTIVE WASTE AND METHOD FOR THE PRODUCTION THEREOF
EP0057430A1 (en) Container for transporting and storing radioactive wastes
DE4418750A1 (en) New magnetic or magnetisable reinforcing particles
EP0082267A1 (en) Moulded body for encapsulating radioactive wastes, and process for manufacturing this body
DE382707C (en) Projectile, in particular hand grenades, mines or the like.
DE1888844U (en) VALVE, IN PARTICULAR PLASTIC SHUT-OFF VALVE.
DE3212507A1 (en) Casks for the storage of radioactive substances having a ceramic corrosion-protective layer surrounding the substances
DE19623191C1 (en) Metallurgical vacuum degassing unit suction tube
WO1988002355A1 (en) Process for manufacturing cermets, and composites manufactured according to this process, and the use thereof
DE661626C (en) Metal mold, especially for centrifugal casting
DE3205586A1 (en) ELECTROMECHANICAL LOCKING DEVICE
DE3248104A1 (en) Crucible for melting and casting dental alloys
DE3227868A1 (en) METHOD FOR TREATING PLUTONIUM OXIDE AND / OR PLUTONIUM-URANE MIXED OXIDE
AT222017B (en) Refractory, unfired stone, especially hanging stone, and process for its manufacture
DE1938314C3 (en) Process for the production of a manganese-zinc-ferrite core, especially for signal heads
DE2224341A1 (en) Magnetostrictive material - new formulations from rare earth and transition element alloys
DE970485C (en) Manufacture of permanent magnets from oxidic permanent magnet material
AT163165B (en) Induction furnace
DE8102667U1 (en) "Multi-layer container for safe long-term storage of radioactive material"

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CZ JP RU UA US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: PV1994-2277

Country of ref document: CZ

WWE Wipo information: entry into national phase

Ref document number: 1993914546

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: PV1994-2277

Country of ref document: CZ

WWP Wipo information: published in national office

Ref document number: 1993914546

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1993914546

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: PV1994-2277

Country of ref document: CZ