SE507525C2 - Process for making elongated capsules for storing burnt out nuclear fuel elements - Google Patents

Process for making elongated capsules for storing burnt out nuclear fuel elements

Info

Publication number
SE507525C2
SE507525C2 SE9603757A SE9603757A SE507525C2 SE 507525 C2 SE507525 C2 SE 507525C2 SE 9603757 A SE9603757 A SE 9603757A SE 9603757 A SE9603757 A SE 9603757A SE 507525 C2 SE507525 C2 SE 507525C2
Authority
SE
Sweden
Prior art keywords
nuclear fuel
fuel elements
package
cast
capsule
Prior art date
Application number
SE9603757A
Other languages
Swedish (sv)
Other versions
SE9603757D0 (en
SE9603757L (en
Inventor
Gert Johansson
Original Assignee
Gert Johansson
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 Gert Johansson filed Critical Gert Johansson
Priority to SE9603757A priority Critical patent/SE507525C2/en
Publication of SE9603757D0 publication Critical patent/SE9603757D0/en
Priority to PCT/SE1997/001658 priority patent/WO1998016936A1/en
Publication of SE9603757L publication Critical patent/SE9603757L/en
Publication of SE507525C2 publication Critical patent/SE507525C2/en

Links

Classifications

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

Abstract

The present invention relates to a method of manufacturing oblong canisters for storing spent nuclear fuel elements. This method is characterized in that a bundle of tubes (2) the length of the canister are joined together to form a parcel, by means of welding for instance, around which parcel a casing (9) of metal is cast.

Description

507 525 ål. fyrkantrör, vilka hopfogas och fixeras till önskad grupper- ing, exempelvis hopsvetsas, liksom stag mellan rören, varefter rörpaketet vid behov fylles med fyllmedel, exempelvis skänkmassa, och förvärmes. Det förvärmda rörpaketet placeras i en underdel till en form och övriga formdelar sättas pá plats, varefter gjutning av manteln sker stående, eller liggande vid lämplig storlek, exempelvis med ingjuten utförda på olika nivàer. Som metall användes exem- pelvis stål SS 1306 eller annat material. Kapslarna skall vara lànga och med ett förhållande längdzdiameter mellan 3:1 och 6:1., men även andra förhållanden kan förekomma. 507 525 eel. square tubes, which are joined and fixed to the desired grouping for example, welded together, as well as struts between the pipes, after which the pipe package is filled with filler if necessary, for example, ladle mass, and preheated. It preheated the pipe package is placed in a lower part of one mold and the other molded parts are put in place, after which the casing is cast standing, or lying at a suitable size, for example with castings performed at different levels. As the metal, for example, pelvis steel SS 1306 or other material. The capsules should be long and with a length diameter ratio between 3: 1 and 6: 1., but other conditions may also occur.

Utrustningar för extrema proportioner kan byggas.Equipment for extreme proportions can be built.

En fördel med förfarandet är stränga rakhetstoleranser eller andra toleranser för kapseln kan erhàllas och, givetvis, att kapseln kan framställas överhuvudtaget. Kravet kan exempelvis vara (vid fyrkantrör) att en tolk med dimensionen l53:l53:4500 kan föras genom kapselns hàl.An advantage of the method is strict straightness tolerances or other tolerances of the capsule may be obtained and, of course, that the capsule can be manufactured at all. The requirement may, for example, be (in the case of square tubes) that an interpreter with dimension l53: l53: 4500 can be passed through the hole of the capsule.

Den färdiga kapseln skall primärt användas för förvaring av utbrända kärnbränsleelement eller annat material, och skall runtom och i ändarna på känt sätt tätas med en yttermantel av koppar.The finished capsule should primarily be used for storage of spent nuclear fuel elements or other materials, and shall be sealed around and at the ends in a known manner with a outer sheath of copper.

Ritningar: Förfaringssättet enligt uppfinningen är exemplifierat i bifogade ritningar. I figur 1 visas i längdsektion en kapsel, som skall gjutas, och figur 2 visar samma kapsel i tvärsek- tion. Figur 3 visar en tvärsektion genom ett paket av fyrkantrör. ¿_ »5u7 525 " 3 Utföringsexempel: I figur 1 och 2 visas en färdig kapsel, här ett paket av 12 st fyrkantrör (2), vilka sammansvetsas till ett paket och fyllas med fyllmassa, varefter förvärmning vid behov sker.Drawings: The method according to the invention is exemplified in attached drawings. Figure 1 shows in longitudinal section a capsule, to be cast, and Figure 2 shows the same capsule in cross-section tion. Figure 3 shows a cross section through a package of square tube. ¿_ »5u7 525 "3 Exemplary embodiments: Figures 1 and 2 show a finished capsule, here a package of 12 pcs square tubes (2), which are welded together into a package and filled with filling mass, after which preheating takes place if necessary.

Förhållandet kapsellängd (L) och diameter (D) är här 4,9:1.The ratio of capsule length (L) and diameter (D) here is 4.9: 1.

Kapseln skall efter inplacering av kärnbränsleelement omslutas av en yttermantel av koppar (l) och ändstycken av samma material.The capsule should after placement of nuclear fuel elements enclosed by an outer sheath of copper (l) and end pieces of same material.

Det hopsvetsade rörpaketet (figur 1 och 2) ställes upprätt och fixeras i en underdel eller kärna till en gjutform. Övriga delar av formen sättas pà plats, och gjutningen i stàl sker stáende eller liggande, exempelvis i ingjut pà olika nivàer. Materialet i rören är vanligen stál, SS 1312, och gjutningen sker i stàl, väggtjocklek 10 mm. Sedan gjutkroppen svalnat tömmes den pä skänkmassan. Man kan använda ett eller flera ingjut pà en eller flera niváer, och detta bestäms av gjutvikt, dimensioner osv.The welded pipe package (Figures 1 and 2) is placed upright and fixed in a base or core of a mold. Other parts of the mold are put in place, and the casting in steel occurs standing or lying down, for example in infused on different level. The material of the pipes is usually steel, SS 1312, and the casting is done in steel, wall thickness 10 mm. Then the casting body cooled, it is emptied onto the ladle mass. You can use one or several cast at one or more levels, and this is determined by casting weight, dimensions, etc.

I figur 3 visas fyrkantrören och sedermera de raka hålen (2), där mellan rören (2) svetsats stag (5). Efter elementens inplacering tillslutes kapseln i koppar pà känt sätt.Figure 3 shows the square tubes and later the straight holes (2), where braces (5) are welded between the pipes (2). After the element placement, the capsule is sealed in copper in a known manner.

Förfaringssättet enligt uppfinningen kan varieras pà màngahanda sätt inom ramen för nedanstående patentkrav.The method according to the invention can be varied in many ways within the scope of the following claims.

Claims (6)

sbv 525 t 4 BAIEHIKBALsbv 525 t 4 BAIEHIKBAL l.Förfaringssätt för framställning av avlånga kapslar för förvaring av utbrända kärnbränsleelement, kännetecknat därav, att ett knippe rör (2) av kapselns längd fogas ihop till ett paket, runt vilket gjutes en mantel (9) av metall.Method for producing elongated capsules for storing spent nuclear fuel elements, characterized in that a bundle of tubes (2) of the length of the capsule is joined together into a package, around which a casing (9) of metal is cast. 2.Förfaringssätt enligt patentkrav 1, kännetecknat därav, att ett antal rör (2) hopsvetsas med stag (5), varefter rörpaketet fylles med fyllmedel, exempelvis skänkmassa, och förvärmes vid behov.Method according to Claim 1, characterized in that a number of pipes (2) are welded together with struts (5), after which the pipe package is filled with filler, for example ladle mass, and preheated if necessary. 3.Förfaringssätt enligt patentkrav 2, kännetecknat därav, att det förvärmda rörpaketet fixeras i en underdel till en gjutform och övriga delar sättes på plats, varefter gjutning av manteln sker stående.Method according to claim 2, characterized in that the preheated pipe package is fixed in a lower part to a mold and other parts are put in place, after which the casing is cast standing. 4.Förfaringssätt enligt patentkrav 2-3, kännetecknat därav, det hopsvetsade paketet (2) består av ett antal fyrkantrör.Method according to claims 2-3, characterized in that the welded package (2) consists of a number of square tubes. 5.Förfaringssätt enligt något eller några av föregående patentkrav, kännetecknat därav, att rören är raka och/eller inbördes parallella.Method according to one or more of the preceding claims, characterized in that the pipes are straight and / or mutually parallel. 6.Förfaringssätt enligt patentkrav 1-3, kännetecknat därav, att ingjutet sker pà olika nivåer.Method according to claims 1-3, characterized in that the casting takes place at different levels.
SE9603757A 1996-10-15 1996-10-15 Process for making elongated capsules for storing burnt out nuclear fuel elements SE507525C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9603757A SE507525C2 (en) 1996-10-15 1996-10-15 Process for making elongated capsules for storing burnt out nuclear fuel elements
PCT/SE1997/001658 WO1998016936A1 (en) 1996-10-15 1997-10-03 Method of manufacturing oblong capsules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9603757A SE507525C2 (en) 1996-10-15 1996-10-15 Process for making elongated capsules for storing burnt out nuclear fuel elements

Publications (3)

Publication Number Publication Date
SE9603757D0 SE9603757D0 (en) 1996-10-15
SE9603757L SE9603757L (en) 1998-04-16
SE507525C2 true SE507525C2 (en) 1998-06-15

Family

ID=20404244

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9603757A SE507525C2 (en) 1996-10-15 1996-10-15 Process for making elongated capsules for storing burnt out nuclear fuel elements

Country Status (2)

Country Link
SE (1) SE507525C2 (en)
WO (1) WO1998016936A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE525468C2 (en) * 2002-11-29 2005-03-01 Oyster Internat Nv C O H B Man Container device for storing hazardous materials, in particular for final storage of nuclear fuel, and methods for its preparation
RU2536441C1 (en) * 2013-07-16 2014-12-27 Федеральное Государственное унитарное предприятие "Российский Федеральный ядерный центр-Всероссийский научно-исследовательский институт экспериментальной физики-ФГУП "РФЯЦ-ВНИИЭФ" Cover for placing and storing spent fuel assemblies for rbmk-1000 reactor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140020C2 (en) * 1981-10-08 1986-11-06 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Process for the production of a dense and homogeneous cast casing for a container with highly radioactive content and device for carrying out the process
US5438597A (en) * 1993-10-08 1995-08-01 Vectra Technologies, Inc. Containers for transportation and storage of spent nuclear fuel
KR100315869B1 (en) * 1994-03-22 2002-02-28 모리스 다니엘 Nuclear Fuel Assembly Rack
FR2717945B1 (en) * 1994-03-24 1996-04-26 Transnucleaire Packaging comprising a non-circular section forged steel body for nuclear fuel assemblies.

Also Published As

Publication number Publication date
SE9603757D0 (en) 1996-10-15
SE9603757L (en) 1998-04-16
WO1998016936A1 (en) 1998-04-23

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