EP0111231B1 - Transport- und/oder Lagerbehälter für wärmeproduzierende radioaktive Stoffe - Google Patents
Transport- und/oder Lagerbehälter für wärmeproduzierende radioaktive Stoffe Download PDFInfo
- Publication number
- EP0111231B1 EP0111231B1 EP83111851A EP83111851A EP0111231B1 EP 0111231 B1 EP0111231 B1 EP 0111231B1 EP 83111851 A EP83111851 A EP 83111851A EP 83111851 A EP83111851 A EP 83111851A EP 0111231 B1 EP0111231 B1 EP 0111231B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- jacket
- base body
- container
- corrosion
- anchors
- 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
Links
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
Definitions
- the present invention relates to a repository for heat-producing radioactive materials, consisting of a base body and a gas-tight jacket made of corrosion-resistant material that surrounds this base body at a distance on all sides.
- radioactive materials e.g. spent fuel from nuclear power plants or waste from plants for reprocessing
- containers are used in which the radioactive substances are safely enclosed, from which the heat generated can be safely dissipated at any time and which are critically safe.
- Thick-walled containers are usually used, some of which are lined with stainless steel on the inside. Should the containers be underground, e.g. In disused mines that are to be disposed of, the container walls must be able to absorb the mechanical forces and be corrosion-resistant.
- a heat-resistant, inexpensive material is used for the base body, which does not have to be corrosion-resistant, since it does not come into contact with corrosive media.
- the tank is dimensioned so that it can withstand the rock pressure. It does not have to be tight so that the bottom and the lid can be inserted or screwed in.
- the materials for the base body are e.g. suitable heat-resistant fine-grain steels in question.
- suitable heat-resistant fine-grain steels in question.
- concrete containers can also be used as the base body.
- Corrosion-resistant materials are used for the outer layer or the outer jacket of the containers.
- high-alloy steels such as Hastelloy, or zirconium or titanium-based steels.
- the thickness of these sheets is chosen so that it resists the expected corrosion for the duration of the storage and, since the base body is not gas-tight, withstands the internal pressure. This internal pressure builds up after the container has been loaded due to heating by the heat-producing radioactive inventory.
- the maximum internal pressure that builds up is decisive for the design of the thickness of the outer jacket, i.e. Because of the internal pressure, the corrosion protection jacket must be dimensioned considerably thicker than would be necessary in and of itself for reasons of corrosion protection and tightness. This applies in particular to flat floors and lids, which, given the dimensions to be taken into account, must be disproportionately thicker than the cylindrical shells of the otherwise usual transport and storage containers.
- the invention was therefore based on the object of creating a repository for heat-producing radioactive materials, consisting of a base body and a gas-tight jacket of corrosion-resistant material which surrounds this base body at a distance on all sides, in which the thickness of the gas-tight jacket is designed only for corrosion resistance, is easy to manufacture and test.
- the anchors are screwed into the base body on the one hand and welded to the jacket on the other hand.
- a shielding container 6 there is a final storage container, consisting of a base body 1 with a base 2 and a cover 3 made of an inexpensive metallic material.
- the repository contains radioactive material 7, for example irradiated fuel elements from nuclear reactors or radioactive waste from reprocessing plants.
- Base body 1, bottom 2 and cover 3 are surrounded by a gas-tight jacket 4 made of corrosion-resistant metallic material.
- the jacket 4 is relatively tight on the repository. Therefore, the gap 8 between the jacket 4 and the base body 1 or bottom 2 and cover 3 is very small. It can be filled with helium or another gas to test the tightness of welds in the jacket 4 and in the lid or bottom area.
- the jacket 4 is connected to the base body 1 including cover and bottom area via anchors 5.
- the number and distribution of the anchors 5 is adapted to the respective design needs.
- the anchors 5 are made of the same material as the sheath 4 for reasons of corrosion protection and fix the sheath 4, the thickness of which is dimensioned to save material only with regard to the possibly expected maximum corrosion attack, against bulging with increasing internal pressure, which arises from the heat-producing radioactive inventory.
- conical anchors 9 - Fig. 11 - can be used or bolt-shaped Anchor 10 - Fig. 111 -, which are provided with one or more paragraphs.
- such anchors 9, 10 penetrate the base body 1. It is therefore particularly advantageous if the anchors are screwed into the base body 1 as screw anchors 11 - FIG. IV - since in this way the base body 1 does not have to be drilled through.
- the anchors 5 are inserted into the base body from the outside in the manner of an expansion dowel or a bayonet holder.
- the corrosion-resistant jacket 4 is fastened to the anchors 5 thus let into the base body 1, for example by soldering or riveting. It has been found that welding the armature 5 to the jacket 4 is particularly favorable.
- the outside of the anchor can either be flush with the outer surface of the jacket or it can be set back. If necessary, it is also possible to screw anchor 5 and jacket 4 together.
- the present invention it is surprisingly possible to minimize the thickness of the corrosion jacket in terms of material and costs, also under the aspect of an internal pressure building up, based on the actual requirements.
- the assembly of the anchors and the jacket on the anchors is simple, metallic connection problems do not exist with a suitable choice of the metal combinations.
- all weld seams or other types of connection can be checked perfectly.
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)
- Packages (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19828233960U DE8233960U1 (de) | 1982-12-03 | 1982-12-03 | Transport- und/oder lagerbehaelter fuer waermeproduzierende radioaktive stoffe |
DE8233960U | 1982-12-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0111231A1 EP0111231A1 (de) | 1984-06-20 |
EP0111231B1 true EP0111231B1 (de) | 1987-03-18 |
Family
ID=6746173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83111851A Expired EP0111231B1 (de) | 1982-12-03 | 1983-11-26 | Transport- und/oder Lagerbehälter für wärmeproduzierende radioaktive Stoffe |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0111231B1 (es) |
JP (1) | JPS59150393A (es) |
BR (1) | BR8306562A (es) |
CA (1) | CA1220568A (es) |
DE (2) | DE8233960U1 (es) |
ES (1) | ES293235Y (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3413393C2 (de) * | 1984-04-10 | 1986-11-13 | Transnuklear Gmbh, 6450 Hanau | Einsatzkorb für Transport- und Lagerbehälter |
DE3447278A1 (de) * | 1984-12-22 | 1986-06-26 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Langzeitbestaendige korrosionsschutzumhuellung fuer dicht verschlossene gebinde mit hochradioaktivem inhalt |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1514389C3 (de) * | 1965-01-27 | 1973-11-29 | Siemens Ag, 1000 Berlin U. 8000 Muenchen | Transportbehälter fur verbrauchte Brennelemente von Kernreaktoren |
DE1514623B2 (de) * | 1965-11-22 | 1971-01-07 | Siemens AG, 1000 Berlin u. 8000 München | Transportbehälter für verbrauchte Brennelemente von Kernreaktoren |
BE713125A (es) * | 1968-04-02 | 1968-08-16 | ||
FR2113805B1 (es) * | 1970-11-17 | 1976-03-19 | Transnucleaire |
-
1982
- 1982-12-03 DE DE19828233960U patent/DE8233960U1/de not_active Expired
-
1983
- 1983-11-26 EP EP83111851A patent/EP0111231B1/de not_active Expired
- 1983-11-26 DE DE8383111851T patent/DE3370397D1/de not_active Expired
- 1983-11-29 BR BR8306562A patent/BR8306562A/pt unknown
- 1983-12-02 CA CA000442473A patent/CA1220568A/en not_active Expired
- 1983-12-02 JP JP58227104A patent/JPS59150393A/ja active Pending
- 1983-12-02 ES ES1983293235U patent/ES293235Y/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BR8306562A (pt) | 1984-07-31 |
CA1220568A (en) | 1987-04-14 |
JPS59150393A (ja) | 1984-08-28 |
EP0111231A1 (de) | 1984-06-20 |
DE3370397D1 (en) | 1987-04-23 |
ES293235Y (es) | 1987-04-01 |
DE8233960U1 (de) | 1983-06-16 |
ES293235U (es) | 1986-07-01 |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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