EP0036982A1 - Enceinte pour le transport et/ou le stockage de matières radioactives - Google Patents
Enceinte pour le transport et/ou le stockage de matières radioactives Download PDFInfo
- Publication number
- EP0036982A1 EP0036982A1 EP81101812A EP81101812A EP0036982A1 EP 0036982 A1 EP0036982 A1 EP 0036982A1 EP 81101812 A EP81101812 A EP 81101812A EP 81101812 A EP81101812 A EP 81101812A EP 0036982 A1 EP0036982 A1 EP 0036982A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert basket
- basket according
- insert
- graphite
- matrix
- 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.)
- Granted
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
Definitions
- the present invention relates to a removable insert basket with shafts for radioactive material, in particular for receiving spent fuel elements from nuclear reactors, located in a transport and / or storage container.
- an insert basket is normally required in order to accommodate several spent fuel elements from nuclear reactors in the container at a predetermined distance from one another during transport or also during storage.
- the respective necessary fuel element positions are therefore designed as corresponding shafts into which the fuel elements are introduced.
- the shape and dimensions of the shaft cross-section depend on the fuel element types to be inserted.
- the fuel assemblies must be able to be brought in and out remotely with ease.
- the insert basket must be sufficiently stable so that it can withstand the mechanical and thermal loads during transport. It must also be designed so that the fuel assemblies to be transported are not damaged during transport and handling.
- Such insert baskets are usually designed as a pure steel frame or as a solid block made of non-ferrous metal.
- the shafts of the massive blocks are machine-made. If necessary, they are lined with steel.
- the massive non-ferrous. Constructions are suitable as insert baskets because they can dissipate the residual heat generated due to good heat conduction to the tank wall without auxiliary medium. They preferably consist of aluminum or copper or their alloys. Boron or cadmium can also be added to these alloys as a neutron absorber.
- the previously known insert baskets have a number of disadvantages. They have a high weight because they are predominantly made of metal due to the required thermal conductivity. In some cases, especially in the case of special steel frames, water cooling which is disadvantageous in the event of an accident is required. Only a small part of the neutron shielding is provided by the baskets, the main shielding effect is ensured by a special neutron protection on the shielding transport or storage container. At accidents, eg fire, this neutron protection can be destroyed on the shielding container.
- the object was achieved in that the matrix of the insert basket consists predominantly of graphite.
- FIG. 1 shows a side view of the insert basket according to the invention and illustration II the corresponding top view.
- Figure III shows the structure of the insert basket made of building blocks according to the invention, with and without metal disks,
- Figure IV the cup-shaped design of the metal disks and a tie rod arrangement, and
- a removable insert basket (4) which contains shafts (6) for receiving radioactive material, in particular for receiving spent fuel elements.
- the matrix (5) of the insert korbes (4) consists of graphite, a light and under normal conditions flame-retardant material with good heat conduction properties and excellent neutron moderation qualities.
- the graphite of the graphite matrix (5) is preferably compressed, for example by pressing or other known methods, and then, if necessary, processed by turning, milling and drilling. It has proved to be particularly advantageous that the shafts (6) and / or the outer surface of the E insatzkorbes (4) metallic neutron-absorbing linings (7, 10).
- These linings can be tubes with corresponding cross-sectional profiles (23, 24) or a basket container (10) which is provided with a cover (21).
- the cover (21) contains openings (25) through which the radioactive material can be introduced into the shafts (6).
- the insert basket (4) according to the invention is closed with a lid (11).
- the use of boron steel as the lining (7) of the shafts (6), the basket container (10) and the cover (21) is particularly favorable, as is the addition of boron carbide to the matrix graphite (5). This improves n-capture and increases criticality security.
- the graphite matrix (5) is advantageously constructed from appropriately shaped building blocks (8, 14, 15, 16, 22), a disk-shaped building block shape (8) having proven to be particularly favorable.
- metal disks (9) between the graphite disks (8).
- the metal discs (9) also be made of neutron absorbing material.
- a particularly advantageous modification is the design of the metal disks (9) as a pot shape (12), in which the graphitic building blocks (8, 14, 15, 16, 22) are protected on all sides.
- the basket container (10) can be omitted.
- the insert basket (4) consists of a strong base plate (26) on which the linings (7) for the shafts (6) are fastened, e.g. welded or screwed as pipes, made of graphite blocks (8, 14, 15, 16, 22) and metal disks (9), all connected to each other by tie rods (19) and fastening elements (20).
- the insert basket (4) according to the invention is excellently suited to be used alone as a storage basket in intermediate and final storage for storing radioactive substances. It is particularly advantageous to pass cooling channels (17) through the graphitic matrix material (5), preferably lined with neutron-absorbing metal tubes (18). If the insert basket (4) according to the invention is placed on a corresponding substructure in an air-cooled interim storage facility, the cooling air sweeps through the cooling channels (17) due to the thermals that arise and dissipates the waste heat generated by the radioactive decay.
- the E insatzkorb (4) has occasionally to the tie rods (19), the basket container (10) and the basket lid (11) means, such as hooks or eyelets, devices for the handling crane or similar lifting.
- the gap (13) between the basket (4) according to the invention and the shielding container (1) can be filled with graphite or metal powder, as can the remaining volume in the shafts (6) occupied by the radioactive fuel elements.
- the insert basket (4) according to the invention also has the advantage that it can be assembled quickly, e.g. by threading perforated graphite disks (8) and metal disks (9) onto the lining tubes (23, 24) of the shafts (6) or onto the tubes (18) of the cooling channels (17) and optionally onto the tie rod (20).
- the described configurations of the insert basket (4) either with the basket container (10) or with the metal disks (9) shaped as a pot shape (12) ensure that no graphite matrix material is easily lost even in the event of an accident.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Packages (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Carbon And Carbon Compounds (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3012310 | 1980-03-29 | ||
DE19803012310 DE3012310A1 (de) | 1980-03-29 | 1980-03-29 | Einsatzkorb fuer radioaktives material in transport- und/oder lagerbehaelter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0036982A1 true EP0036982A1 (fr) | 1981-10-07 |
EP0036982B1 EP0036982B1 (fr) | 1984-06-06 |
Family
ID=6098776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81101812A Expired EP0036982B1 (fr) | 1980-03-29 | 1981-03-12 | Enceinte pour le transport et/ou le stockage de matières radioactives |
Country Status (4)
Country | Link |
---|---|
US (1) | US4476394A (fr) |
EP (1) | EP0036982B1 (fr) |
DE (1) | DE3012310A1 (fr) |
ES (1) | ES500106A0 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2548820A1 (fr) * | 1983-07-06 | 1985-01-11 | Wiederaufarbeitung Von Kernbre | Procede pour remplir des recipients metalliques d'une masse vitreuse fondue radioactive et dispositif de reception d'une masse vitreuse fondue radioactive |
US4680159A (en) * | 1984-08-17 | 1987-07-14 | Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh | Storage container assembly for accommodating individual fuel rods of irradiated nuclear reactor fuel elements |
EP1434239A1 (fr) * | 2002-12-24 | 2004-06-30 | GNB Gesellschaft für Nuklear-Behälter mbH | Conteneur de transport et de stockage pour matières radioactives dégageant de la chaleur, des assemblages de combustible nucléaire irradiés ou des coquilles de matériau vitrifié fortement radioactif |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4738799A (en) * | 1983-10-28 | 1988-04-19 | Westinghouse Electric Corp. | Permanent disposal of radioactive particulate waste |
US4623510A (en) * | 1983-10-28 | 1986-11-18 | Westinghouse Electric Corp. | Permanent disposal of radioactive particulate waste in cartridge containing ferromagnetic material |
DE4135066C1 (fr) * | 1991-10-24 | 1993-04-01 | Gns Gesellschaft Fuer Nuklear-Service Mbh, 4300 Essen, De | |
JP3205179B2 (ja) * | 1994-06-29 | 2001-09-04 | 株式会社日立製作所 | 放射性物質乾式貯蔵設備 |
JPH09211192A (ja) * | 1996-01-30 | 1997-08-15 | Sumitomo Metal Mining Co Ltd | 核燃料物質の輸送方法 |
GB9609304D0 (en) * | 1996-05-03 | 1996-07-10 | British Nuclear Fuels Plc | Improvements in and relating to fuel transportation |
US20010011711A1 (en) * | 1996-05-03 | 2001-08-09 | Graham Nicholson | Container for nuclear fuel transportation |
TW444209B (en) * | 1998-12-24 | 2001-07-01 | Hitachi Ltd | Radioactive material dry storage facility |
DE102004049236B4 (de) * | 2004-10-09 | 2006-07-13 | GNS Gesellschaft für Nuklear-Service mbH | Transport- und/oder Lagerbehälter für Brennelemente |
US8300760B2 (en) * | 2005-12-29 | 2012-10-30 | Neucon Technology, Llc | Compressed powder composite neutron absorber material |
DE102006017427A1 (de) * | 2006-04-13 | 2007-10-18 | GNS Gesellschaft für Nuklear-Service mbH | Transport- und/oder Lagerbehälter für Brennelemente |
CN108962414B (zh) * | 2018-06-15 | 2021-09-17 | 中国核电工程有限公司 | 一种钚溶液贮罐 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2300620A1 (de) * | 1973-01-08 | 1974-07-11 | Transnuklear Gmbh | Behaelter zum transport von plutoniumund uranylnitratloesungen |
US3828197A (en) * | 1973-04-17 | 1974-08-06 | Atomic Energy Commission | Radioactive waste storage |
FR2254860A1 (en) * | 1973-12-17 | 1975-07-11 | Etude En Centre | Radioactive object transport container - using copper plated stainless steel esp for irradiated fuel rod assemblies |
FR2258692A1 (en) * | 1974-01-23 | 1975-08-18 | Transnucleaire | Package for nuclear fuel elements - particularly for transport prior to reprocessing |
DE2740933B1 (de) * | 1977-09-10 | 1979-01-18 | Rheinisch Westfaelisches Elek | Transport- bzw. Lagerbehaelter fuer radioaktive Stoffe,insbesondere bestrahlte Kernreaktorbrennelemente |
DE2828138A1 (de) * | 1978-06-27 | 1980-01-10 | Amtrust Ag | Behaelter zum transportieren von radioaktiven brennelementen |
GB2024694A (en) * | 1978-06-28 | 1980-01-16 | Transnuklear Gmbh | Radioactive material enclosures |
EP0020948A2 (fr) * | 1979-06-21 | 1981-01-07 | The Carborundum Company | Conteneur pour des matériaux radioactifs, procédé de fabrication d'un tel conteneur, module utilisé pour cette fabrication et méthode de blindage contre les neutrons |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3016463A (en) * | 1958-04-28 | 1962-01-09 | Smith Corp A O | Multi-layer vessel having a neutron absorbing layer |
US3882313A (en) * | 1972-11-07 | 1975-05-06 | Westinghouse Electric Corp | Concentric annular tanks |
-
1980
- 1980-03-29 DE DE19803012310 patent/DE3012310A1/de not_active Ceased
-
1981
- 1981-03-05 ES ES500106A patent/ES500106A0/es active Granted
- 1981-03-12 EP EP81101812A patent/EP0036982B1/fr not_active Expired
- 1981-03-27 US US06/248,441 patent/US4476394A/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2300620A1 (de) * | 1973-01-08 | 1974-07-11 | Transnuklear Gmbh | Behaelter zum transport von plutoniumund uranylnitratloesungen |
US3828197A (en) * | 1973-04-17 | 1974-08-06 | Atomic Energy Commission | Radioactive waste storage |
FR2254860A1 (en) * | 1973-12-17 | 1975-07-11 | Etude En Centre | Radioactive object transport container - using copper plated stainless steel esp for irradiated fuel rod assemblies |
FR2258692A1 (en) * | 1974-01-23 | 1975-08-18 | Transnucleaire | Package for nuclear fuel elements - particularly for transport prior to reprocessing |
DE2740933B1 (de) * | 1977-09-10 | 1979-01-18 | Rheinisch Westfaelisches Elek | Transport- bzw. Lagerbehaelter fuer radioaktive Stoffe,insbesondere bestrahlte Kernreaktorbrennelemente |
DE2828138A1 (de) * | 1978-06-27 | 1980-01-10 | Amtrust Ag | Behaelter zum transportieren von radioaktiven brennelementen |
GB2024694A (en) * | 1978-06-28 | 1980-01-16 | Transnuklear Gmbh | Radioactive material enclosures |
EP0020948A2 (fr) * | 1979-06-21 | 1981-01-07 | The Carborundum Company | Conteneur pour des matériaux radioactifs, procédé de fabrication d'un tel conteneur, module utilisé pour cette fabrication et méthode de blindage contre les neutrons |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2548820A1 (fr) * | 1983-07-06 | 1985-01-11 | Wiederaufarbeitung Von Kernbre | Procede pour remplir des recipients metalliques d'une masse vitreuse fondue radioactive et dispositif de reception d'une masse vitreuse fondue radioactive |
US4680159A (en) * | 1984-08-17 | 1987-07-14 | Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh | Storage container assembly for accommodating individual fuel rods of irradiated nuclear reactor fuel elements |
EP1434239A1 (fr) * | 2002-12-24 | 2004-06-30 | GNB Gesellschaft für Nuklear-Behälter mbH | Conteneur de transport et de stockage pour matières radioactives dégageant de la chaleur, des assemblages de combustible nucléaire irradiés ou des coquilles de matériau vitrifié fortement radioactif |
Also Published As
Publication number | Publication date |
---|---|
ES8303793A1 (es) | 1983-02-01 |
DE3012310A1 (de) | 1981-10-08 |
US4476394A (en) | 1984-10-09 |
EP0036982B1 (fr) | 1984-06-06 |
ES500106A0 (es) | 1983-02-01 |
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