EP0043106B1 - Transport- and/or storage container with an inner lining and method of making same - Google Patents
Transport- and/or storage container with an inner lining and method of making same Download PDFInfo
- Publication number
- EP0043106B1 EP0043106B1 EP81104911A EP81104911A EP0043106B1 EP 0043106 B1 EP0043106 B1 EP 0043106B1 EP 81104911 A EP81104911 A EP 81104911A EP 81104911 A EP81104911 A EP 81104911A EP 0043106 B1 EP0043106 B1 EP 0043106B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casing
- container
- flange
- slit
- base
- 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
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Images
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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
Definitions
- Radioactive substances in particular spent fuel elements from nuclear reactors, emit noteworthy residual heat in addition to gamma and neutron radiation.
- Containers that are used for the transport and / or storage of such substances must therefore safely enclose the radioactivity of the introduced goods and safely discharge the generated after-heat to the outside. This must be verified in rigorous tests so that safety is guaranteed even in extreme accident situations.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
Gegenstand der Erfindung ist ein zylindrischer Behälter zum Transport und/oder zur Lagerung von radioaktivem Material, insbesondere von be- strahlten Brennelementen aus Kernreaktoren, ausgestattet mit einer Innenauskleidung, bestehend aus einem Flansch, einem Boden und einem Mantel, der auf der Innenseite des Behältergrundkörpers eng anliegt und der mit dem Boden und dem Flansch verschweißt ist. Außerdem wird ein Verfahren zur Herstellung einer solchen Innenauskleidung angegeben.The invention is a cylindrical container for transport and / or storage of radioactive material, in particular be - irradiated fuel elements from nuclear reactors, provided with an inner lining consisting of a flange, a bottom and a jacket which closely on the inside of the container body is applied and which is welded to the bottom and the flange. A method for producing such an inner lining is also specified.
Radioaktive Stoffe, insbesondere abgebrannte Brennelemente aus Kernreaktoren, geben neben Gamma- und Neutronenstrahlung auch nennenswerte Nachwärme ab. Behälter, die zum Transport und/oder zur Lagerung derartiger Stoffe eingesetzt werden, müssen daher die Radioaktivität des eingebrachten Gutes sicher einschließen und die erzeugte Nachwärme sicher nach außen ableiten. Dieses ist in strengen Tests so nachzuweisen, daß auch bei extremen Unfallsituationen die Sicherheit gewährleistet ist.Radioactive substances, in particular spent fuel elements from nuclear reactors, emit noteworthy residual heat in addition to gamma and neutron radiation. Containers that are used for the transport and / or storage of such substances must therefore safely enclose the radioactivity of the introduced goods and safely discharge the generated after-heat to the outside. This must be verified in rigorous tests so that safety is guaranteed even in extreme accident situations.
Es sind Behälter bekannt, bestehend aus einem dickwandigen metallischen Außenbehälter, der die erforderliche mechanische Festigkeit und die Abschirmung der radioaktivenContainers are known, consisting of a thick-walled metal outer container, which has the required mechanical strength and the shielding of the radioactive
Strahlung sicherstellt, und aus einem inneren Behälter bzw. aus einer inneren Behälterauskleidung, die den inneren Einschluß des radioaktiven Materials unter den Gesichtspunkten Korrosion, Oberflächenrauhigkeit und Diffusion zusätzlich garantiert.Radiation ensures, and from an inner container or from an inner container lining, which additionally guarantees the internal containment of the radioactive material from the point of view of corrosion, surface roughness and diffusion.
Derartige Behälter verfügen über lnnenauskIeidungen, die eingegossen (DE-U-78 19 282) oder als Spritzschicht bzw. als Galvanoschicht (DE-U-77 28 331) aufgebracht werden.Such containers have inner linings which are cast in (DE-U-78 19 282) or applied as a spray layer or as a galvanic layer (DE-U-77 28 331).
Diese Verfahren haben jedoch den Nachteil, daß entweder prüftechnische Schwierigkeiten, z. B. Vortäuschung von Gußlunkern bei fehlerhaft angegossener Innenauskleidung, auftreten können, oder aber die Oberflächengüte durch aufwendige zusätzliche Bearbeitung verbessert werden muß.However, these methods have the disadvantage that either technical difficulties, e.g. B. pretend casting holes in the case of incorrectly cast inner lining, or the surface quality must be improved by expensive additional processing.
Aus den EP-A-0004241, US-A-3982134 und FR-A-1515024 sind ebenfalls Innenauskleidungen für Transportbehälter bekannt, die aus einem Flansch, einem Boden und einem Mantel bestehen, der auf der Innenseite des Behältergrundkörpers eng anliegt und mit boden und Flansch verschweißt ist. Diese Innenauskleidungen geben allerdings keinen optimalen Kontakt mit dem Grundkörper.From EP-A-0004241, US-A-3982134 and FR-A-1515024 inner linings for transport containers are also known, which consist of a flange, a bottom and a jacket that fits tightly on the inside of the container body and with bottom and Flange is welded. However, these inner linings do not give optimal contact with the base body.
Der Erfindung liegt daher die Aufgabe zugrunde, ein zylindrischer Behälter zum Transport und/oder zur Lagerung von radioaktivem Material, insbesondere von bestrahlten Brennelementen aus Kernreaktoren, zu schaffen, ausgestattet mit einer Innenauskleidung, bestehend aus einem Flansch, einem Boden und einem Mantel, der auf der Innenseite des Behältergrundkörpers eng anliegt und mit dem Boden und Flansch verschweißt ist, wobei ein guter Kontakt zwischen Innenauskleidung und dem Behälter bei Mini-mierung der Bearbeitungsschritte gewährleistet sein sollte. Außerdem war ein Verfahren zur Herstellung solcher Behälter zu finden.The invention is therefore based on the object to provide a cylindrical container for the transport and / or storage of radioactive material, in particular irradiated fuel elements from nuclear reactors, equipped with an inner lining consisting of a flange, a base and a jacket which the inside of the container body fits tightly and is welded to the bottom and flange, whereby good contact between the inner lining and the container should be ensured while minimizing the processing steps. A method of making such containers was also found.
Die Aufgabe wurde erfindungsgemäß dadurch gelöst, daß der Mantel mit einem abgedichteten axialen Schlitz und im Innern längs des Schlitzes mit Stegen versehen ist.The object was achieved in that the jacket is provided with a sealed axial slot and inside along the slot with webs.
Solche Behälter werden vorteilhafterweise dadurch`hergesteIIt, daß ein Boden und ein Flansch in dem Behältergrundkörper eingelegt werden, dann der auf Endmaß gewalzte metallische Mantel, der mit einem axialen Schlitz versehen ist, durch Zusammendrücken des Mantels zwischen Boden und Flansch positioniert, anschließend wieder entspannt, der nunmehr an der Innenseite des Behältergrundkörpers anliegende Mantel mit Boden und Flansch verschweißt und abschließend der Schlitz verschlossen wird.Such containers are advantageously produced by inserting a base and a flange into the base body of the container, then positioning the rolled metal jacket, which is provided with an axial slot, by compressing the jacket between the base and flange, and then releasing the pressure, the jacket now resting on the inside of the container body is welded to the bottom and flange and the slot is then closed.
Vorzugsweise wird der Schlitz mit einem passenden Blechstreifen abgedichtet, insbesondere verschweißt.The slot is preferably sealed, in particular welded, with a suitable sheet metal strip.
Die Abbildungen I bis 111 erläutern schematisch in beispielhafter Ausführungsform die erfindungsgemäße Innenauskleidung. Zunächst werden Boden (6) und Flansch (5), an dem ein Verschluß befestigt werden kann, im Kühlrippen (4) und andere Einrichtungen aufweisende Behältergrundkörper (3) eingelegt. Der Mantel (1) ist auf Endmaß gewalzt und mit einem axialen Schlitz (8) versehen. Längs des Schlitzes (8) sind vorteilhafterweise als Montagehilfen Stege (2) angeschweißt, die es gestatten, durch Zusammenziehen den Mantel (1) elastisch zu verformen, so daß er unter Bildung eines Montagespaltes (9) in den Behältergrundkörper (2) eingebracht werden kann. Anschliessend wird der Mantel (1) entspannt. Dadurch legt er sich an den Grundkörper (3) an. Der axiale Schlitz (8) wird mit geeignetem Blech (7) abgedeckt und verschweißt. Boden (6) und Flansch (5) werden ebenfalls angeschweißt. Besonders günstig ist, daß mit der Bearbeitung des Grundkörpers (3) und den dort erreichbaren Toleranzen und der heute technisch möglichen Walzgenauigkeit von Blechen eine außerordentlich geringe Zylinderformtoleranz im Bereich weniger Zehntel mm bei großen Innendurchmessern und Behälterabmessungen erreicht werden. Dadurch hat es sich überraschend ergeben, daß durch die Entspannung des bei der Montage im Umfang verkleinerten Innenbehältermantels der verbleibende Restspalt (10) zwischen dem Grundkörper (3) und der Innenauskleidung (1) vernachlässigbar klein ist, und daher einen guten Wärmeübergang sowie gute Festigkeitseigenschaften sicherstellt. Die Größe dieses Restspaltes (10) wird weitgehend durch die Schrumpfung der axialen Schweißnaht (11) bestimmt.Figures I to 111 illustrate schematically the inner lining according to the invention in an exemplary embodiment. First, the base (6) and flange (5), to which a closure can be attached, are inserted into the container base body (3) which has cooling fins (4) and other devices. The jacket (1) is rolled to its final dimensions and provided with an axial slot (8). Along the slot (8), webs (2) are advantageously welded on as assembly aids, which allow the jacket (1) to be elastically deformed by contracting so that it can be introduced into the container base body (2) to form an assembly gap (9) . The jacket (1) is then relaxed. This puts it on the base body (3). The axial slot (8) is covered with a suitable sheet (7) and welded. Bottom (6) and flange (5) are also welded on. It is particularly favorable that with the machining of the base body (3) and the tolerances achievable there and the technically feasible rolling accuracy of sheet metal, an extraordinarily low cylinder shape tolerance in the range of a few tenths of a millimeter can be achieved with large internal diameters and container dimensions. It has surprisingly been found that the relaxation of the inner container shell, which is reduced in size during assembly, the remaining gap (10) between the base body (3) and the inner lining (1) is negligibly small, and therefore ensures good heat transfer and good strength properties . The size of this remaining gap (10) is largely determined by the shrinkage of the axial weld seam (11).
Besonders vorteilhaft ist die Anwendung der Erfindung auf zylindrische Behälter bei Innendurchmessern > 600 mm und Wandstärken der Innenauskleidung bis etwa 10 mm.The application of the invention to cylindrical containers with inner diameters> 600 mm and wall thicknesses is particularly advantageous the inner lining up to about 10 mm.
In manchen Fällen ist es besonders günstig, wenn der Innenbehältermantel nach dem Positionieren und Entspannen zusätzlich an die Innenseite des Behälterkörpers angedrückt wird.In some cases it is particularly advantageous if the inner container jacket is additionally pressed against the inside of the container body after it has been positioned and relaxed.
Folgendes Beispiel zeigt einen Behälter mit erfindungsgemäßer Innenauskleidung.The following example shows a container with an inner lining according to the invention.
Ein Behältergrundkörper mit Kühlrippen, aus Guß hergestellt, hatte einen Innendurchmesser von 1 m und ein Längen-/Durchmesser-Verhältnis von 5. Die Innenauskleidung bestand aus rostfreiem Stahl von 4 mm Dicke. Zunächst wurde der Innenauskleidungsmantel auf 1 010 mm Durchmesser gewalzt und die Montagehilfen befestigt. Nachdem Boden und Flansch in den Behältergrundkörper eingelegt waren, wurde der Innenauskleidungsmantel mittels hydraulischer Hilfsvorrichtung auf ca. 990 mm Durchmesser zusammengezogen und in die vorgesehene Position gebracht, justiert und entspannt. Nachdem der Mantel sich an das Innere des Behältergrundkörpers gelegt hatte, wurde der Schlitz mit einem Blech, ebenfalls rostfreier Stahl und mit entsprechender Wanddicke, verschweißt und anschließend die Montagehilfe abgetrennt. Es erfolgte danach die Kontrolle der Schweißnähte sowie die Endkontrolle.A container body with cooling fins, made of cast iron, had an inner diameter of 1 m and a length / diameter ratio of 5. The inner lining was made of stainless steel of 4 mm thickness. First, the inner lining jacket was rolled to 1 010 mm in diameter and the assembly aids were attached. After the bottom and flange had been inserted into the container body, the inner lining jacket was pulled together to a diameter of approx. 990 mm using a hydraulic auxiliary device and brought into the intended position, adjusted and relaxed. After the jacket had laid itself on the inside of the container body, the slot was welded to a sheet, also stainless steel and with a corresponding wall thickness, and then the assembly aid was cut off. The welds were then checked and the final inspection was carried out.
Die Kontrolle ergab eine Toleranz des Innendurchmessers vom Innenauskleidemantel von ± 0,5 mm auf 5 m Länge. Der verbleibende Restspalt beträgt auch im ungünstigsten Fall nur < 0,5 mm. Eine plastische Verformung des Innenauskleidemantels wurde nicht festgestellt, d. h., die Verformung erfolgte im elastischen Bereich. Somit ist keine Rißprüfung erforderlich.The control showed a tolerance of the inner diameter of the inner lining jacket of ± 0.5 mm over a length of 5 m. In the worst case, the remaining gap is only <0.5 mm. A plastic deformation of the inner lining jacket was not found, i. that is, the deformation occurred in the elastic range. This means that no crack test is required.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3024979 | 1980-07-02 | ||
DE3024979A DE3024979C2 (en) | 1980-07-02 | 1980-07-02 | Process for the production of a tight-fitting inner lining for transport and / or storage containers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0043106A1 EP0043106A1 (en) | 1982-01-06 |
EP0043106B1 true EP0043106B1 (en) | 1985-08-28 |
Family
ID=6106195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81104911A Expired EP0043106B1 (en) | 1980-07-02 | 1981-06-25 | Transport- and/or storage container with an inner lining and method of making same |
Country Status (5)
Country | Link |
---|---|
US (1) | US4579274A (en) |
EP (1) | EP0043106B1 (en) |
JP (1) | JPS5798897A (en) |
DE (2) | DE3024979C2 (en) |
ES (2) | ES503543A0 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3503641A1 (en) * | 1984-07-24 | 1986-02-06 | Nationale Genossenschaft für die Lagerung radioaktiver Abfälle - NAGRA, Baden | METHOD FOR CLOSING A CONTAINER TO RECEIVE RADIOACTIVE MATERIAL AND CONTAINER FOR CARRYING OUT THE PROCESS |
US4800061A (en) * | 1987-05-06 | 1989-01-24 | Westinghouse Electric Corp. | Apparatus for loading fuel rods into grids of nuclear fuel assemblies |
DK0577940T3 (en) * | 1992-07-10 | 1997-09-01 | Inventio Ag | Method for integrated manufacture of an interior structure of a box. |
DE4402282C1 (en) * | 1994-01-27 | 1995-04-13 | Apparate Und Anlagenbau Gmbh | Method of making a welded connection, and transport and storage container produced according to this method for spent nuclear fuel assemblies |
TW514572B (en) * | 2000-04-25 | 2002-12-21 | Mitsubishi Heavy Ind Ltd | Radioactive substance containment vessel, and radioactive substance containment vessel producing device and producing method |
US6741669B2 (en) * | 2001-10-25 | 2004-05-25 | Kenneth O. Lindquist | Neutron absorber systems and method for absorbing neutrons |
FR2935532B1 (en) * | 2008-08-27 | 2012-07-13 | Tn Int | PROCESS FOR MANUFACTURING PACKAGING FOR THE TRANSPORT AND / OR STORAGE OF NUCLEAR MATERIALS USING THE WELDING REMOVAL PHENOMENON |
US10020084B2 (en) | 2013-03-14 | 2018-07-10 | Energysolutions, Llc | System and method for processing spent nuclear fuel |
CN107048918A (en) * | 2017-01-21 | 2017-08-18 | 施卓琳 | A kind of thermos cup overcoat and its production technology |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1934064A (en) * | 1931-10-05 | 1933-11-07 | Smith Corp A O | Lining of high pressure tubular articles |
US2111791A (en) * | 1936-06-29 | 1938-03-22 | Smith Corp A O | Welded seam for alloy liners in vessels |
US2414931A (en) * | 1939-03-20 | 1947-01-28 | Thompson Prod Inc | Method of making cylinder liner sleeves |
US2424878A (en) * | 1944-10-28 | 1947-07-29 | Reed Roller Bit Co | Method of bonding a liner within a bore |
BE627852A (en) * | 1962-01-31 | 1900-01-01 | ||
US3229096A (en) * | 1963-04-03 | 1966-01-11 | Nat Lead Co | Shipping container for spent nuclear reactor fuel elements |
US3365786A (en) * | 1963-12-24 | 1968-01-30 | Kobe Steel Ltd | Method of manufacturing a multiwalled pressure vessel |
US3442761A (en) * | 1966-07-18 | 1969-05-06 | Ca Atomic Energy Ltd | Nuclear reactor fuel element |
FR1515024A (en) * | 1966-10-11 | 1968-03-01 | Commissariat Energie Atomique | Radioactive products transport castle |
US3461009A (en) * | 1966-11-08 | 1969-08-12 | Larry L Snyder | Process of molding a tank |
US3433382A (en) * | 1967-05-22 | 1969-03-18 | Barogenics Inc | Pre-stressed segmented containers or pressure vessels |
US3780306A (en) * | 1971-05-27 | 1973-12-18 | Nat Lead Co | Radioactive shipping container with neutron and gamma absorbers |
US3945509A (en) * | 1972-02-08 | 1976-03-23 | Mpr Associates, Inc. | Handling system for nuclear fuel casks |
US3982134A (en) * | 1974-03-01 | 1976-09-21 | Housholder William R | Shipping container for nuclear fuels |
US3969805A (en) * | 1974-12-23 | 1976-07-20 | The Trane Company | Method of constructing an axial flow fan |
DE7728331U1 (en) * | 1977-09-14 | 1978-01-05 | Steag Kernenergie Gmbh, 4300 Essen | SHIELD TRANSPORT AND / OR SHIELD STORAGE CONTAINER FOR RADIOACTIVE WASTE |
FR2419568A1 (en) * | 1978-03-09 | 1979-10-05 | Commissariat Energie Atomique | JUNCTION DEVICE BETWEEN A CONTAINER AND A UNLOADING ENCLOSURE |
DE7819282U1 (en) * | 1978-06-28 | 1978-10-12 | Transnuklear Gmbh, 6450 Hanau | SHIELDING CONTAINER FOR THE TRANSPORT AND STORAGE OF IRRADIATED FUEL ELEMENTS OR OTHER BIO-HARMFUL WASTE |
IT1131143B (en) * | 1980-05-06 | 1986-06-18 | Nuovo Pignone Spa | PERFECTED METHOD FOR THE SEALING OF A SLEEVE FLANGED TO A PIPE, PARTICULARLY SUITABLE FOR REPAIRING SUBMARINE PIPES INSTALLED AT LARGE DEPTHS |
-
1980
- 1980-07-02 DE DE3024979A patent/DE3024979C2/en not_active Expired
-
1981
- 1981-06-25 DE DE8181104911T patent/DE3172024D1/en not_active Expired
- 1981-06-25 EP EP81104911A patent/EP0043106B1/en not_active Expired
- 1981-06-30 ES ES503543A patent/ES503543A0/en active Granted
- 1981-07-02 JP JP56102330A patent/JPS5798897A/en active Granted
- 1981-07-29 ES ES504396A patent/ES504396A0/en active Granted
-
1984
- 1984-03-20 US US06/591,371 patent/US4579274A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3024979C2 (en) | 1984-02-02 |
JPS5798897A (en) | 1982-06-19 |
JPH0377478B2 (en) | 1991-12-10 |
ES8400628A1 (en) | 1983-10-16 |
DE3172024D1 (en) | 1985-10-03 |
ES8303795A1 (en) | 1983-02-01 |
US4579274A (en) | 1986-04-01 |
ES504396A0 (en) | 1983-10-16 |
DE3024979A1 (en) | 1982-01-28 |
ES503543A0 (en) | 1983-02-01 |
EP0043106A1 (en) | 1982-01-06 |
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