EP0978848B1 - Procédé de remplissage d'un conteneur de stockage et conteneur adapté à cet usage - Google Patents

Procédé de remplissage d'un conteneur de stockage et conteneur adapté à cet usage Download PDF

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Publication number
EP0978848B1
EP0978848B1 EP98114500A EP98114500A EP0978848B1 EP 0978848 B1 EP0978848 B1 EP 0978848B1 EP 98114500 A EP98114500 A EP 98114500A EP 98114500 A EP98114500 A EP 98114500A EP 0978848 B1 EP0978848 B1 EP 0978848B1
Authority
EP
European Patent Office
Prior art keywords
storage container
storage
cover
bearing
sleeve
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
EP98114500A
Other languages
German (de)
English (en)
Other versions
EP0978848A1 (fr
Inventor
Harry Dr.-Ing. Spilker
Ulrich Dipl.-Ing. Knopp
Rolf Dipl.-Ing. Jung
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.)
GNB Gesellschaft fuer Nuklear Behaelter mbH
Original Assignee
GNB Gesellschaft fuer Nuklear Behaelter mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GNB Gesellschaft fuer Nuklear Behaelter mbH filed Critical GNB Gesellschaft fuer Nuklear Behaelter mbH
Priority to ES98114500T priority Critical patent/ES2175572T3/es
Priority to EP98114500A priority patent/EP0978848B1/fr
Priority to DE59804334T priority patent/DE59804334D1/de
Publication of EP0978848A1 publication Critical patent/EP0978848A1/fr
Application granted granted Critical
Publication of EP0978848B1 publication Critical patent/EP0978848B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/06—Details of, or accessories to, the containers
    • G21F5/12—Closures for containers; Sealing arrangements
    • 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

Definitions

  • the invention relates to a method for loading a Storage container, in particular an intermediate storage container, with spent fuel elements from nuclear power plants.
  • the invention further relates to a storage container for implementation of the procedure.
  • - Spent fuel elements Nuclear power plants and their fuel rods must comply with regulations temporarily stored in appropriately shielded storage containers become.
  • the burned down Fuel elements first transferred to intermediate storage containers and stored in an interim storage facility. Then be the fuel elements for final storage in a usually underground repository.
  • the intermediate storage container is usually with a double lid arrangement equipped, the elaborate sealing devices having.
  • the fuel elements are usually from the interim storage container reloaded into repository.
  • complex shielding measures required. - If in As part of the known measures in the intermediate storage container set bearing bushes with additional sealing measures or sealing devices to be, these bearing bushes have to be complex Way be removed from the intermediate storage container, wherein complex shielding measures are also required are.
  • the invention is the technical problem based on specifying a procedure in which simple Way the bearing bushes set in a storage container with fuel elements with a sealing closure can be without complex shielding measures required are.
  • the invention also lies the technical problem underlying a storage container To indicate implementation of the procedure.
  • the invention teaches a method for loading a storage container, in particular an intermediate storage container, with spent fuel elements from nuclear power plants, bearing bushes are each filled with at least one spent fuel element (as a whole or in the form of its fuel rods) and the bearing bushes are each closed with a primary cover, wherein a plurality of the bearing bushes is placed in the storage container and the storage container is closed with a storage container cover having at least one manipulation opening, wherein the bearing bushes are each raised one after the other so that they grip through the manipulation opening with their bearing bush head, and a secondary cover is fastened to the bearing bush head penetrating the manipulation opening.
  • an inner sleeve is set, which is convenient with the fuel elements or fuel rods are filled tightly.
  • a plurality of such are preferably sealed with fuel rods filled inner sleeves placed in a bearing sleeve.
  • the spent fuel is each bearing bush closed with a primary cover, which primary cover is preferably screwed into the bearing bush.
  • between the primary cover and bearing sleeve casing at least one sealing element is arranged.
  • the primary lid neutron moderating and / or radiation absorbing Components The primary cover takes over until the secondary cover is attached in particular a temporary sealing function and ensures also the mechanical retention of the content of the Bearing bush and preferably also the shielding from Gamma and neutron radiation.
  • the Bearing bushes in the storage container preferably intermediate storage container, set.
  • the storage container already be provided with a storage container lid and the Bearing bushes are inserted through the manipulation opening in the Storage containers introduced.
  • the manipulation opening is at this embodiment simultaneously as a loading opening used.
  • One or more circular Arrangements of bearing bushes can be provided. To close each bearing sleeve is preferably lifted individually, so that they only with their bearing head Manipulation opening in the storage container lid reaches through.
  • the bearing bush head protrudes from the manipulation opening out and the secondary cover on the outstanding bearing head attached or preferably welded.
  • the bearing bush head is in the manipulation opening without protruding through the manipulation opening the secondary cover as it were in the manipulation opening attached to the bearing bush head or preferably on the Bearing head welded on.
  • the manipulation opening has other expediently the same cross section as one Bearing bush or a bearing bush head. If the bearing bushes cylindrical with a circular cross-section are preferably also the manipulation opening circular cross section. The opening diameter the manipulation opening is larger than that Diameter of the bearing bushes, but preferably only a little greater.
  • the scope of the invention the storage container cover becomes particularly important in the storage container opening step by step rotated an angle ⁇ and becomes the manipulation opening each arranged over a bearing bush and is then the respective bearing bush with its bearing head passed through the manipulation opening.
  • the storage container lid for rotation a thread, which is preferably designed as a trapezoidal thread is.
  • the storage container jacket preferably has Internal thread and expediently has the storage container cover a corresponding external thread and the Storage container lid is preferably through this threaded connection both to align the manipulation opening rotatable as well as for tightening the storage container lid the storage container jacket rotatable. The rotation of the storage container lid conveniently takes place remotely instead of.
  • a Corresponding drive motor which has a Gearbox with the storage container lid or with one on the Storage container lid connected component connectable is.
  • at least one manipulation opening in the edge region of the storage container cover arranged.
  • This manipulation opening is preferably eccentrically in the storage container lid arranged.
  • the manipulation opening on simple Arranged way over a bearing sleeve be circular or cylindrical jacket-shaped with other bearing bushes is set in the storage container.
  • the manipulation opening is expediently in relation to the respective bearing bushing centered so that the bearing bushing preferably centrally in relation to the manipulation opening is arranged.
  • the storage container cover has a further manipulation opening, which is preferably arranged centrally in the storage container lid is.
  • This further manipulation opening is at least a bearing bush placed in the middle of the storage container assigned which bearing sleeve is preferred by others Bearing bushes surrounded in a circular or cylinder jacket shape becomes.
  • the secondary cover After lifting a bearing bush, the secondary cover attached to the bearing sleeve head.
  • the secondary cover with the bearing bush head welded.
  • the welding takes place preferably after Narrow gap welding process instead. Thanks to the welding technology Closure of the bearing bush becomes a tight and permanent Barrier for both temporary storage and for ensures the final storage of the bearing bush.
  • the bearing bush welded to the secondary cover after the intermediate storage preferably the Repository can be fed without further elaborate Transhipment measures would be required.
  • the fact that with the an effective secondary lid designed as a welding lid Sealing the bearing bush is special elaborate sealing measures on the intermediate storage container not mandatory.
  • the intermediate storage container is required in contrast to the known intermediate storage containers no double lid arrangement with complex Sealing devices.
  • the secondary cover are the bearing bushes tightly closed, that it is sufficient, the intermediate storage container only to be equipped with a single cover. Long-term monitoring can continue during the intermediate storage the tightness of the intermediate storage container to be largely dispensed with.
  • the invention is based on the finding that a simple Manipulation of the in the storage container or intermediate storage container set bearing bushes and in particular a simple and reliable locking of the bearing bushes with a secondary cover is possible without elaborate shielding measures are required. This is due to the combination of the method features according to the invention reached.
  • Manipulation of the bearing bushes means within the scope of the invention primarily the attachment of the Secondary cover.
  • the Bearing head passed through the manipulation opening and then the secondary cover on the bearing bush head attached or preferably welded. Thereby is the rest or the lower part of the bearing bush in the Storage container or intermediate storage container arranged and is thus sufficient due to the storage container walls shielded.
  • the Secondary lid in a simple manner in the manipulation opening engaging or preferably at the manipulation opening through bearing bush head attached or be welded on.
  • the storage container or the storage container cover serves when welding the secondary cover as a welding aid.
  • a welding facility can be particularly reliable on the storage container lid be supported.
  • the at least one manipulation opening after attaching the Secondary cover closed with at least one shielding plug.
  • the invention furthermore a storage container, in particular an intermediate storage container, - with storage container casing, Storage container interior, storage container bottom and storage container cover, where the storage container interior for receiving of bearing bushes with spent fuel elements is, the storage container lid at least one Has manipulation opening, the opening diameter for performing a bushing head of a bushing is designed, the storage container lid rotatable on the Storage container jacket is arranged and the manipulation opening by turning the storage container cover over each a bearing bush head can be aligned and wherein the manipulation opening closable with at least one shielding plug is.
  • Storage container lid rotatable on the thread Storage container jacket arranged.
  • the thread is preferably designed as a trapezoidal thread. It is expedient an additional storage tank shielding plate above the storage tank cover intended. It is also part of the Invention to provide moderator holes in the storage container jacket that are filled with moderator material.
  • the storage container 1 and 2 show a storage container according to the invention 1, the preferred in the embodiment and after Embodiment of the invention as an intermediate storage container is executed.
  • the storage container 1 has a storage container jacket 2, a storage container interior 3, a Storage container bottom 4 and a storage container cover 5.
  • bearing bushes 6, 7 are set, the spent fuel, not shown from nuclear power plants or their fuel rods.
  • each bearing sleeve 6, 7 has at least one inner sleeve 8 that is tightly filled with the fuel rods (see also Fig. 5).
  • Each bearing bush 6, 7 has a primary cover 9 locked. The primary cover 9 is preferably in the Bearing bush opening 10 screwed.
  • a shielding plate 11 is arranged, which is expedient consists of a neutron moderating material.
  • the shielding plate 11 is preferred and in the exemplary embodiment Orientated on the inside of the bearing sleeve (see in particular Fig. 5).
  • the storage container 1 there are seven in the storage container 1 Bearing bushes 6, 7 (Fig. 2) set.
  • Bearing bushes 6 There are six Bearing bushes 6 arranged in a circle in the storage container 1, while a bearing bush 7 centrally in the interior of the storage container 3 is arranged.
  • the embodiment has the storage container cover 5 in the edge region of the Storage container lid 5 arranged manipulation opening 12 on.
  • a manipulation opening 14 is preferred provided centrally in the storage container cover 5.
  • the opening diameter of the manipulation openings 12, 14 is so designed that a bearing bush head 13 of a bearing bush are each guided through a manipulation opening 12, 14 can. This is in Fig. 3 for the in the edge area Storage container lid 5 arranged manipulation opening 12 shown.
  • the storage container cover 5 is preferably and rotatable on the storage container jacket 2 in the exemplary embodiment arranged.
  • Manipulation opening 12 each over one of the circular arranged bearing bushes 6 are aligned, so that the respective bearing head 13 of the corresponding Bearing bush 6 can be guided through the manipulation opening 12.
  • the storage container cover 5 gradually rotated by an angle ⁇ equal to 60 ° and the manipulation opening 12 is each above one Bearing bush 6 arranged.
  • FIG. 3 The raised state of a bearing bush 6 is shown in FIG. 3 shown.
  • the bearing bush head 13 projects through the Manipulation opening 12 preferably only as far as it is for a functionally secure attachment of the secondary cover 15 is required.
  • the lower part of the bearing bush 6 remains thus in the storage container 1.
  • a secondary cover 15 is preferred with the Bushing head 13 welded. In doing so, a corresponding Weld joint 16 between secondary cover 15 and bearing head 13 made (Fig. 5).
  • bearing head 13 a Bearing bush 6, 7 has a manipulation collar 17, which Grip the bearing bush 6, 7 by the not shown Lifting device relieved.
  • the manipulation collar 17 serves preferably also as a guide for the not shown Welding device for welding the secondary cover 15.
  • Fig. 3 is the center of the center of the storage container 5 arranged manipulation opening 14 by means of a shielding plug 18 closed.
  • the bearing bush 7 with the shield plug removed also preferably raised as it is for a bearing bush 6 is shown in Fig. 3.
  • the secondary cover 15 fastened or welded.
  • Fig. 4 shows the state in which all bearing bushes 6, 7 already with a secondary cover 15 were provided.
  • the manipulation opening 14 is with the Shielding plug 18 closed during the manipulation opening 12 closed with a further shielding plug 19 is.
  • the two shielding plugs 18, 19 in their closed state with a Cover plate 20 covers that with screws or bolts the storage container cover 5 can be attached. It lies otherwise within the scope of the invention that above the Storage container cover 5 a storage container shield plate 21 is arranged.
  • the storage container cover 5 preferably with the help of a drive motor, not shown driven, which expediently via a corresponding Gearbox connected to the storage container cover 5 is.
  • a drive motor not shown driven
  • the storage container cover 5 are preferred for this three threaded holes are provided, which are expedient are arranged offset by 120 °.
  • bolts are inserted into these threaded holes are in turn connected to a ring gear. The rotation of the ring gear and thus the storage container cover expediently by a flange-mounted gear.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Closures For Containers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (7)

  1. Procédé de chargement d'un conteneur de stockage (1), en particulier d'un conteneur de stockage temporaire, avec des éléments combustibles épuisés provenant de centrales nucléaires,
    dans lequel des gaines de stockage (6, 7) sont remplies chacune d'au moins un élément combustible épuisé et les gaines de stockage (6, 7) sont fermées chacune au moyen d'un couvercle primaire (9),
    dans lequel une pluralité de gaines de stockage (6, 7) sont placées dans le conteneur de stockage (1) et le conteneur de stockage (1) est fermé au moyen d'un couvercle de conteneur de stockage (5) présentant au moins une ouverture de manipulation (12, 14),
    dans lequel les gaines de stockage (6, 7) sont soulevées l'une après l'autre de manière à passer, par leur tête de gaine de stockage, à travers l'ouverture de manipulation (12, 14), et un couvercle secondaire (15) est fixé sur la tête de gaine de stockage (13) traversant l'ouverture de manipulation.
  2. Procédé selon la revendication 1, dans lequel le couvercle de conteneur de stockage (5) est tourné pas à pas, chaque fois d'un angle α dans l'ouverture de conteneur de stockage, et l'ouverture de manipulation (12) est disposée au-dessus d'une gaine de stockage (6), et ensuite la gaine de stockage (6) respective avec sa tête de gaine de stockage (13) est guidée à travers l'ouverture de manipulation (12).
  3. Procédé selon l'une des revendications 1 ou 2, dans lequel le couvercle secondaire (15) est soudé avec la tête de gaine de stockage (13).
  4. Procédé selon l'une des revendications 1 à 3, dans lequel l'ouverture de manipulation (12, 14) est fermée, après fixation du couvercle secondaire (15), au moyen d'au moins un bouchon de blindage (18, 19).
  5. Conteneur de stockage, en particulier conteneur de stockage temporaire pour la mise en oeuvre du procédé selon l'une des revendications 1 à 4, avec
       enveloppe de conteneur de stockage (2), volume intérieur de conteneur de stockage (3), fond de conteneur de stockage (4) et couvercle de conteneur de stockage (5),
    dans lequel le volume intérieur de conteneur de stockage (3) est aménagé pour recevoir des gaines de stockage (6, 7) avec des éléments combustibles épuisés,
    dans lequel le couvercle de conteneur de stockage (5) présente au moins une ouverture de manipulation (12) dont le diamètre d'ouverture est dimensionné pour le passage d'une tête de gaine de stockage (13) d'une gaine de stockage (6),
    dans lequel le couvercle de conteneur de stockage (5) est disposé tournant sur l'enveloppe de conteneur de stockage (2) et l'ouverture de manipulation (12) peut être orientée, par rotation du couvercle de conteneur de stockage (5), au-dessus d'une tête de gaine de stockage (13) respective,
    et dans lequel l'ouverture de manipulation (12) peut être fermée au moyen d'au moins un bouchon de blindage (19).
  6. Conteneur de stockage selon la revendication 5, dans lequel le couvercle de conteneur de stockage (5) est disposé tournant, au moyen d'une tige filetée, sur l'enveloppe de conteneur de stockage (2).
  7. Conteneur de stockage selon l'une des revendications 5 ou 6, dans lequel une plaque de blindage de conteneur de stockage est prévue au-dessus du couvercle de conteneur de stockage (5).
EP98114500A 1998-08-01 1998-08-01 Procédé de remplissage d'un conteneur de stockage et conteneur adapté à cet usage Expired - Lifetime EP0978848B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES98114500T ES2175572T3 (es) 1998-08-01 1998-08-01 Procedimiento para la carga de un contenedor de almacenamiento y contenedor de almacenamiento para la puesta en practica del procedimiento.
EP98114500A EP0978848B1 (fr) 1998-08-01 1998-08-01 Procédé de remplissage d'un conteneur de stockage et conteneur adapté à cet usage
DE59804334T DE59804334D1 (de) 1998-08-01 1998-08-01 Verfahren zur Beladung eines Lagerbehälters und Lagerbehälter zur Durchführung des Verfahrens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98114500A EP0978848B1 (fr) 1998-08-01 1998-08-01 Procédé de remplissage d'un conteneur de stockage et conteneur adapté à cet usage

Publications (2)

Publication Number Publication Date
EP0978848A1 EP0978848A1 (fr) 2000-02-09
EP0978848B1 true EP0978848B1 (fr) 2002-06-05

Family

ID=8232391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98114500A Expired - Lifetime EP0978848B1 (fr) 1998-08-01 1998-08-01 Procédé de remplissage d'un conteneur de stockage et conteneur adapté à cet usage

Country Status (3)

Country Link
EP (1) EP0978848B1 (fr)
DE (1) DE59804334D1 (fr)
ES (1) ES2175572T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2510087C1 (ru) * 2012-09-05 2014-03-20 Федеральное государственное унитарное предприятие "Горно-химический комбинат" Пенал для отработавшего ядерного топлива водо-водяного энергетического реактора ввэр-1000
RU180654U1 (ru) * 2018-02-06 2018-06-20 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") Герметичная ампула для отработавшей тепловыделяющей сборки

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2620132C1 (ru) * 2016-02-24 2017-05-23 Акционерное общество "Опытное Конструкторское Бюро Машиностроения имени И.И. Африкантова" (АО "ОКБМ Африкантов") Пенал для хранения отработавших тепловыделяющих сборок
CN113066596A (zh) * 2021-03-23 2021-07-02 中国原子能科学研究院 放射性样品存储装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1586456A (fr) * 1968-08-30 1970-02-20
DE2738592A1 (de) * 1977-08-26 1979-03-01 Kraftwerk Union Ag Brennelement-transportbehaelter
CH638640A5 (de) * 1979-07-03 1983-09-30 N Med Ag Einrichtung zur temporaeren aufnahme radioaktiver abfaelle.
FR2694122B1 (fr) * 1992-07-24 1994-10-14 Framatome Sa Enceinte de transport d'éléments irradiés, installation pour le déchargement de cette enceinte et procédé de transport d'éléments irradiés.
FR2705090B1 (fr) * 1993-05-10 1995-07-13 Cogema Conteneur etanche.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2510087C1 (ru) * 2012-09-05 2014-03-20 Федеральное государственное унитарное предприятие "Горно-химический комбинат" Пенал для отработавшего ядерного топлива водо-водяного энергетического реактора ввэр-1000
RU180654U1 (ru) * 2018-02-06 2018-06-20 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") Герметичная ампула для отработавшей тепловыделяющей сборки

Also Published As

Publication number Publication date
DE59804334D1 (de) 2002-07-11
ES2175572T3 (es) 2002-11-16
EP0978848A1 (fr) 2000-02-09

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