DE7624867U1 - STORAGE RACK FOR FUEL ELEMENTS - Google Patents

STORAGE RACK FOR FUEL ELEMENTS

Info

Publication number
DE7624867U1
DE7624867U1 DE7624867U DE7624867U DE7624867U1 DE 7624867 U1 DE7624867 U1 DE 7624867U1 DE 7624867 U DE7624867 U DE 7624867U DE 7624867 U DE7624867 U DE 7624867U DE 7624867 U1 DE7624867 U1 DE 7624867U1
Authority
DE
Germany
Prior art keywords
containers
storage rack
fuel elements
fuel
stainless steel
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
Application number
DE7624867U
Other languages
German (de)
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.)
Nukem GmbH
Original Assignee
Nukem GmbH
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 Nukem GmbH filed Critical Nukem GmbH
Priority to DE7624867U priority Critical patent/DE7624867U1/en
Publication of DE7624867U1 publication Critical patent/DE7624867U1/en
Priority to JP1977051317U priority patent/JPS5323899U/ja
Priority to NLAANVRAGE7707041,A priority patent/NL182923C/en
Priority to ES460593A priority patent/ES460593A1/en
Priority to IT7753328U priority patent/IT219967Z2/en
Priority to BR5700941U priority patent/BR5700941U/en
Priority to CH965477A priority patent/CH622478A5/en
Priority to SE7708941A priority patent/SE424782B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/40—Arrangements for preventing occurrence of critical conditions, e.g. during storage
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Description

KUKE M GmbH
V~6k5ü Hanau 1 1KUKE M GmbH
V ~ 6k5ü Hanau 1 1

Lagergestell für BrennelementeStorage rack for fuel assemblies

Die Neuerung betrifft Lagergestelle für abgebrannte Brennelemente, bestehend aus mehreren zusammengefügten Behältern aus einem neutronenabsorbierenden Werkstoff, in deren Inneres die Brennelemente eingebracht werden.The innovation concerns storage racks for spent fuel elements, Consists of several assembled containers made of a neutron-absorbing material, inside of which the fuel elements be introduced.

In den nächsten Jahren werden weltweit erhebliche Mengen abgebrannter Brennelementbündel aus Kernkraftwerken u^l sonstigen Leistungsreaktoren anfallen, die bis zu ihrer Wiederaufbereitung in Wasserbecken gelagert werden müssen. Dabei muß sichergestellt sein, daß die Brennelementanordnung in diesen Becken stets kritikalitätssicher bleibt. In den bisherigen Viasserbecken betrug der Kante-Kante-Abstand der Brennelementstäbe allseitig etwa 30 cm, wodurch eine praktisch vollständige Isolation der einzelnen Elemente voneinander erreicht wurde. Zur Erhöhung der Lagerbeckenkapazität ist es jedoch wünschenswert, die Brennelementbündel im Wasserbecken dichter anzuordnen. Das kann man erreichen, wenn man Neutronenabsorber in Kasten- oder Plattenform vorwendet, zwischen denen die Brennelemente angeordnet werden. Die Lagergestelle müssen außerdem korrosionsbeständig sein und eine gute Wärmeleitfähigkeit besitzen, um die Wärmeabfuhr nicht zu behindern·Significant amounts of waste will be burned around the world over the next few years Fuel assemblies from nuclear power plants and others There are power reactors that have to be stored in water basins until they are reprocessed. It must be ensured be that the fuel assembly in these basins always remains criticality safe. In the previous Viasser basin was the edge-to-edge distance of the fuel rods on all sides about 30 cm, which means that the individual elements are practically completely isolated Elements of each other was reached. To increase the storage pool capacity, however, it is desirable to use the fuel assembly to be arranged closer together in the water basin. This can be achieved by using box or plate-shaped neutron absorbers, between which the fuel assemblies are arranged. The storage racks must also be corrosion-resistant and good Have thermal conductivity so as not to hinder the dissipation of heat

Bei bekannten Anordnungen werden quadratische "Rohre", die aus Aluminium o-^er Edelstahl bestehen und in die die Brennelementstäbe eingeschoben werden, senkrecht in entsprechende Gittergestelle eingesetzt, wobei die Gittoröffnungen so angeordnet sind, daß der sichere Abstand zwischen den einzelnen Brennelementen gewahrt bleibt. Um diese Abständt: möglichst klein zu halten, werden im allgemeinen neutronenabsorbierende Materialien verwendet, meist Borcarbid, entweder eingebettet zwischen den Behälterwandungen oder als eigene Absorberstäbe.In known arrangements, square "tubes" made of aluminum or stainless steel and into which the fuel rods are inserted inserted vertically into corresponding grid frames, with the grid gate openings arranged in such a way that that the safe distance between the individual fuel assemblies is maintained. To keep this distance as small as possible, Neutron absorbing materials are generally used, mostly boron carbide, either embedded between the container walls or as your own absorber rods.

7624367 02.12.767624367 12/02/76

Weiterhin gibt es Lagergestelle, bei denen die einzelnen kastenförmigen Behälter fest<zusammengefügt sind, beispielsweise durch Schweißen. Bei allen Lagergestellen sind die Wandungen der einzel nen Behälter von einer Wasserschicht umgeben»There are also storage racks in which the individual box-shaped Containers are firmly <joined together, for example by Welding. In all storage racks, the walls of the individual containers are surrounded by a layer of water »

Es ^var Aufgabe der vorliegenden Neuerung, Lagerge;steile für abgebrannte Brennelemente zu schaffen, bei denen durch entsprechende Konstruktiojis- und Abschirmungsmaßnahmen möglichst geringe Abstände zwischen den einzelnen Brennelementen erreichbar· sind. Weiterhin sollen sie korrosionsbeständig sein und eir hohes Wärii:eableitungsvermögen besitzen. Außerdem müssen sie eng tolcrierbnr auf verschiedene Rastermaßstäbe eingestellt werden können und ferner leicht montiei'bar und demontierbar sein.It ^ var task of the present innovation, storage racks; steep for burned down To create fuel assemblies in which the smallest possible spacing through appropriate construction and shielding measures can be reached between the individual fuel assemblies. Furthermore, they should be corrosion-resistant and have a high Have heat dissipation capacity. They also need to be tight tolcrierbnr can be set to different grid scales and also be easy to assemble and dismantle.

Diese Aufgabe wurde dadurch gelö&u, daß man Lagergestelle verwendet, die aus mehreren zusammengefügten Behältern mit quadratischem Querschnitt aus einem neutronenabsorbierenden Werkstoff bes tolien, wobei neuorungsgemäß die Wandungen dieser Behälter von jeweils zwei /-Profilblechen gebildet werden, die über Distanzhülsf η und Zup.ankerschraubcn zu den entsprechenden Lagergesteilen pf ügt sind .This task was solved by using storage racks, those of several joined together containers with a square cross-section made of a neutron-absorbing material bes tolien, with the walls of these containers from two / -Profile sheets are formed, which via spacer sleeve η and Zup.ankerschraubcn to the corresponding bearing parts are cultivated.

Die Z-Profilbleche bestehen aus einem neutronenabsorbierenden Werkstoff, vorzugsweise aus mit Bor legiertem Edelstahl.The Z-profile sheets consist of a neutron-absorbing one Material, preferably made of stainless steel alloyed with boron.

Die Abbildung gibt schema tisch und in beispielhafter Ausführungs fonn einen Querschnitt aus einem solchen Lagergestell. Das Lagergestell (1) für die abgebrannten Brennelemente besteht aus einer Vielzahl von nebeneinander angeordneten Behältern (2) von quadratischem Querschnitt, deren seitliche Wandungen aus jeweils zwei Z-Profilblechen (3) gebildet werden. Zwischen den einzelnen Behältern liegen Hohlräume (^), die beim Lagern des Gestells (1) im Wasserbecken mit Wasser gefüllt sind. Die Z-Profile (3) werden von Zugankerschrauben (5) zusammengehalten,The illustration gives a schematic and exemplary execution fonn a cross-section from such a storage rack. The storage rack (1) for the spent fuel elements is made from a plurality of juxtaposed containers (2) with a square cross-section, the side walls of which are made of two Z-profile sheets (3) are formed in each case. Between individual containers lie cavities (^), which when the Frame (1) are filled with water in the water basin. The Z-profiles (3) are held together by tie bolts (5),

7624867 02.12.767624867 02.12.76

• ■ «• ■ «

die von Distanzhülsen (6) umgeben sind, zur genauen Justierung der Abstände innerhalb und zwischen den Behältern (2). Die Zugankerschrauben (5) befinden sich ihrerseits in entsprechenden Bohrungen der Verankerungsbleche (7)·which are surrounded by spacer sleeves (6) for precise adjustment of the Distances within and between the containers (2). The tie bolts (5) are in turn located in the corresponding holes in the anchoring plates (7)

Während die Z-Profilbleche aus einem neutronenabsorbierenden Material bestehen, vorzugsweise mit Bor legiertem Edelstahl, sind alle anderen Teile aus rostfreiem Edelstahl gefertigt. Die Neutronenabsorption zwischen zwei Brennelementen wird durch die Anordnung von jeweils zwei Borstahlwänden gewährleistet.While the Z-profile sheets are made of a neutron-absorbing Material, preferably stainless steel alloyed with boron, all other parts are made of stainless steel. the Neutron absorption between two fuel assemblies is ensured by the arrangement of two boron steel walls.

Die Verschraubung zweier Z-Profile ergibt einen geschlossenen Kasten, in welchem jeweils ein Brennelement abgesenkt werden kann. Mit Hilfe der Distanzhülsen ist eine Rastermaßeinhaltung in vielfachen Ausführungen und sehr eng tolerierbar möglich. Alle Teile sind miteinander verschraubt und können daher sehr leicht montiert und demontiert werden.The screw connection of two Z-profiles results in a closed one Box in which one fuel assembly can be lowered. With the help of the spacer sleeves, the grid dimension is adhered to in multiple designs and very closely tolerable possible. All parts are screwed together and can therefore be very can be easily assembled and disassembled.

7624887 iz.t2.767624887 iz.t2.76

Claims (2)

ScTiu tzansprücheScTiu t claims 1. Lagergestell für abgebrannte Brennelemente, bestehend aus mehreren zusammengefügten Behältern mit quadratischem Querschnitt aus einem neutronenabsorbierenden Werkstoff, in deren Hohlräume die Brennelemente eingefahren werden, dadurch gekennzeichnet, daß die Wandungen dieser Behälter (2) von jeweils zwei Z-Profilblechen (3) gebildet werden, die über Distanzhülsen (6) und Zugankerschrauben (5) zu den entsprechenden Lagergestellen (i) zusammengefügt sind.1. Storage rack for spent fuel, consisting of several assembled containers with a square cross-section made of a neutron-absorbing material, into the cavities of which the fuel elements are inserted, characterized in that the walls of these containers (2) are each formed by two Z-profile sheets (3) which are joined together via spacer sleeves (6) and tie-rod screws (5) to form the corresponding storage racks (i). 2. Lagergestelle nach Anspruch 1, dadurch gekennzeichnet, daß die Z-Profile aus mit Bor legiertem Edelstahl, alle anderen Konstrulctionsteile aus rostfreiem Edelstahl bestehen.2. Storage racks according to claim 1, characterized in that the Z-profiles are made of stainless steel alloyed with boron, all other construction parts are made of stainless steel. Frankfurt/Main, den 3.8.1976
PAT/Dr.Br.-PFrankfurt / Main, August 3rd, 1976
PAT / Dr.Br.-P 7624867 02.12.767624867 02.12.76
DE7624867U 1976-08-07 1976-08-07 STORAGE RACK FOR FUEL ELEMENTS Expired DE7624867U1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE7624867U DE7624867U1 (en) 1976-08-07 1976-08-07 STORAGE RACK FOR FUEL ELEMENTS
JP1977051317U JPS5323899U (en) 1976-08-07 1977-04-22
NLAANVRAGE7707041,A NL182923C (en) 1976-08-07 1977-06-24 STORAGE RACK FOR FUEL ELEMENTS.
ES460593A ES460593A1 (en) 1976-08-07 1977-07-09 Improvements introduced in a storage frame for combustible elements consumed. (Machine-translation by Google Translate, not legally binding)
IT7753328U IT219967Z2 (en) 1976-08-07 1977-07-12 CASTLE OF S0PP0RT0 FOR COMBUSTIBLE ELEMENTS
BR5700941U BR5700941U (en) 1976-08-07 1977-08-05 STORAGE ARMACING FOR IGNIFUGAL ELEMENTS
CH965477A CH622478A5 (en) 1976-08-07 1977-08-05 Storage rack for fuel elements
SE7708941A SE424782B (en) 1976-08-07 1977-08-05 STORAGE KIT FOR BURNER FUEL ELEMENTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7624867U DE7624867U1 (en) 1976-08-07 1976-08-07 STORAGE RACK FOR FUEL ELEMENTS

Publications (1)

Publication Number Publication Date
DE7624867U1 true DE7624867U1 (en) 1976-12-02

Family

ID=6668137

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7624867U Expired DE7624867U1 (en) 1976-08-07 1976-08-07 STORAGE RACK FOR FUEL ELEMENTS

Country Status (8)

Country Link
JP (1) JPS5323899U (en)
BR (1) BR5700941U (en)
CH (1) CH622478A5 (en)
DE (1) DE7624867U1 (en)
ES (1) ES460593A1 (en)
IT (1) IT219967Z2 (en)
NL (1) NL182923C (en)
SE (1) SE424782B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723849A1 (en) * 1977-05-26 1978-12-07 Noell Gmbh Frame for optimal utilisation of spent nuclear fuel store - has chambers formed by screened, mirror image, profiled plates
DE2930237A1 (en) * 1979-07-26 1981-02-05 Babcock Brown Boveri Reaktor STORAGE RACK FOR CORE REACTOR FUEL ELEMENTS

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440600A1 (en) * 1978-10-31 1980-05-30 Pichon Jean Luc Storage basket for nuclear fuel cans in swimming pool - made from smooth and flat metal sheets which are easy to clean and contain gaps for unrestricted flow of water in pool
DE7833030U1 (en) * 1978-11-07 1979-03-08 Transnuklear Gmbh, 6450 Hanau INSERT BASKET FOR BURN-DOWN FUEL ELEMENTS IN TRANSPORT AND / OR STORAGE CONTAINERS
FR2463484A1 (en) * 1979-08-07 1981-02-20 Schlumpf Raymond STORAGE BOARD FOR ASSEMBLIES OF NUCLEAR COMBUSTIBLE ELEMENTS
US4900505A (en) * 1981-12-22 1990-02-13 Westinghouse Electric Corp. Spent fuel storage rack
JP2010014681A (en) * 2008-07-07 2010-01-21 Toshiba Corp Spent fuel storage rack and manufacturing method therefor
US9437332B2 (en) * 2011-02-04 2016-09-06 Mitsubishi Heavy Industries, Ltd. Nuclear fuel storage rack

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1223773B (en) * 1964-07-17 1966-09-01 Nikolaus Laing Device for changing the permeability of a wall for electromagnetic radiation
DE1639396B2 (en) * 1968-01-27 1972-11-23 Siemens AG, 1000 Berlin u. 8000 München DEVICE FOR STORING FUEL ELEMENTS IN A COATING BASIN OF A NUCLEAR REACTOR
DE2259669A1 (en) * 1972-12-06 1974-06-12 Licentia Gmbh Irradiated fuel storage facility - with transversely mounted beams supporting fuel elements giving economic construction
SE369243B (en) * 1972-12-21 1974-08-12 Asea Atom Ab

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723849A1 (en) * 1977-05-26 1978-12-07 Noell Gmbh Frame for optimal utilisation of spent nuclear fuel store - has chambers formed by screened, mirror image, profiled plates
DE2930237A1 (en) * 1979-07-26 1981-02-05 Babcock Brown Boveri Reaktor STORAGE RACK FOR CORE REACTOR FUEL ELEMENTS

Also Published As

Publication number Publication date
NL182923B (en) 1988-01-04
ES460593A1 (en) 1978-08-16
SE7708941L (en) 1978-02-08
IT219967Z2 (en) 1993-05-31
JPS5323899U (en) 1978-02-28
SE424782B (en) 1982-08-09
NL182923C (en) 1988-06-01
CH622478A5 (en) 1981-04-15
BR5700941U (en) 1978-04-04
NL7707041A (en) 1978-02-09

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