EP0079475B1 - Concrete protection container for the storage of fuel-element receptacles - Google Patents
Concrete protection container for the storage of fuel-element receptacles Download PDFInfo
- Publication number
- EP0079475B1 EP0079475B1 EP82109683A EP82109683A EP0079475B1 EP 0079475 B1 EP0079475 B1 EP 0079475B1 EP 82109683 A EP82109683 A EP 82109683A EP 82109683 A EP82109683 A EP 82109683A EP 0079475 B1 EP0079475 B1 EP 0079475B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- concrete protective
- concrete
- protective casing
- fuel
- protective housing
- 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
- 239000004567 concrete Substances 0.000 title claims description 36
- 238000003860 storage Methods 0.000 title claims description 3
- 230000001681 protective effect Effects 0.000 claims description 35
- 239000000446 fuel Substances 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 2
- 239000002915 spent fuel radioactive waste Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 description 2
- 239000003758 nuclear fuel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G21F5/06—Details of, or accessories to, the containers
- G21F5/10—Heat-removal systems, e.g. using circulating fluid or cooling fins
Definitions
- the invention relates to a concrete protective housing for receiving and storing a fuel element container loaded with spent nuclear reactor fuel elements, which is suitable for transport and storage, the clear dimensions of the concrete protective housing being somewhat larger than the external dimensions of the fuel element container and wherein at least one supply air opening and at the highest point of the in the lower region of the concrete protective housing Concrete protective housing an exhaust air opening are arranged, which is covered by a cover arranged at a distance from the concrete protective housing.
- silo containers made of concrete or reinforced concrete.
- These silo containers which form a concrete protective housing for each fuel element container, can have different designs.
- the protective container has lateral supply air ducts on the lower edge of the casing and lateral exhaust air ducts in the region of the upper casing edge below the cover (patent application EP-AS-0 039 785). The arrangement of these supply air and extract air ducts results in natural convection within the concrete protective housing, which is used to dissipate the decay heat.
- the invention has for its object to provide a concrete protective housing of the type described in such a way that improved protection of the concrete protective housing against the ingress of water and snow is achieved.
- the object is achieved in that the exhaust opening is bounded by sheets or the like fastened vertically on the concrete protective housing, which end at a shorter distance from the cover, and in that the cover is fastened to the concrete protective housing with vertical supports, between which half-high spray plates are arranged.
- the roof-shaped cover spans the exhaust air opening located at the top point of the concrete protective housing.
- a labyrinth-like flow of the escaping air flow is achieved by the arrangement according to the invention of vertical sheets around the exhaust air opening.
- the combination of the cover roof with the vertical mudguards and the half-height splash guards results in increased protection against driving rain falling from the side.
- the concrete protective housing consists of a base part 3 of pallet-like design, a cylindrical concrete protective jacket 4 placed thereon and a cylindrical cover 5 lying on the concrete protective jacket 4.
- the foot part 3 consists of a square base plate 6, at the corners of which a foot 7 is arranged, so that the foot part 3 is designed as a pallet that can be driven under.
- the cylindrical concrete protective jacket 4 is placed on the foot part 3 and aligned with the foot part 3 by suitable centering devices (not shown here). Axial bores (not shown) can be arranged in the concrete protective jacket. Neutron protection material, which can consist of plastic rods, for example, is introduced into these holes.
- the concrete protective jacket 4 has recesses 9 at its lower end, which serve as supply air ducts.
- the cover 5 lying on the concrete protective jacket 4 has an exhaust air opening 11 in the center. This exhaust air opening 11 is delimited by vertical metal sheets 12 which are fastened to the cover 5 of the concrete protective housing.
- a roof-shaped cover 13 is arranged above the exhaust air opening 11 and is fastened to the concrete protective housing on four vertical supports 14. The roof-shaped cover 13 has an inclination falling from the center to the sides and is larger in the projected area than the exhaust air opening 11.
- Half-high splash plates 16 are arranged between the supports 14.
- a fuel element container 15 shown here in broken lines, is arranged upright.
- the fuel assembly 15 When the fuel assembly 15 is delivered to the intermediate storage facility, the fuel assembly 15 is placed on the base plate 6 of the foot part 3. Subsequently, the concrete protective jacket 4 is placed on the foot part 3 over the fuel element container 15. Finally, the cover 5 is placed on the upper free end of the concrete protective jacket 4.
- the air in the protective concrete housing 3, 4, 5 is heated by the post-decay heat of the nuclear reactor fuel elements.
- the warm air exits through the exhaust air opening 11, fresh air enters through the supply air openings 9 arranged in the lower region of the concrete protective housing.
- the escaping air flow from the exhaust air opening 11 is forced to the side by the roof-shaped cover 13 and over the surrounding sheet metal strips 12. The air flow escapes like a labyrinth.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Ventilation (AREA)
- Packages (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Description
Die Erfindung betrifft ein Betonschutzgehäuse zur Aufnahme und Lagerung eines mit abgebrannten Kernreaktorbrennelementen beladenen, transport- und lagergeeigneten Brennelementbehälters, wobei die lichten Maße des Betonschutzgehäuses etwas größer als die Außenabmessungen des Brennelementbehälters sind und wobei im unteren Bereich des Betonschutzgehäuses mindestens eine Zuluftöffnung und am höchsten Punkt des Betonschutzgehäuses eine Abluftöffnung angeordnet sind, die von einer mit Abstand zum Betonschutzgehäuse angeordneten Abdeckung überdacht ist.The invention relates to a concrete protective housing for receiving and storing a fuel element container loaded with spent nuclear reactor fuel elements, which is suitable for transport and storage, the clear dimensions of the concrete protective housing being somewhat larger than the external dimensions of the fuel element container and wherein at least one supply air opening and at the highest point of the in the lower region of the concrete protective housing Concrete protective housing an exhaust air opening are arranged, which is covered by a cover arranged at a distance from the concrete protective housing.
Bei den Bemühungen, Brennelementbehälter im Freien zwischenzulagern, wurde bereits vorgeschlagen, die Brennelementbehälter in Silobehälter aus Beton oder Stahlbeton einzubringen. Diese ein Betonschutzgehäuse für jeweils einen Brennelementbehälter bildenden Silobehälter können verschiedene Ausbildung aufweisen. Bei einem nicht vorveröffentlichten Vorschlag zur Ausbildung eines Schutzbehälters zur Aufnahme von Brennelementbehältern weist der Schutzbehälter seitliche Zuluftkanäle am unteren Mantelrand und seitliche Abluftkanäle im Bereich des oberen Mantelrandes unterhalb des Deckels auf (Patentanmeldung EP-AS-0 039 785). Durch die Anordnung dieser Zuluft- und Abluftkanäle wird innerhalb des Betonschutzgehäuses eine natürliche Konvektion bewirkt, die zur Abfuhr der Nachzerfallswärme dient.In the effort to temporarily store the fuel element containers outdoors, it has already been proposed to insert the fuel element containers into silo containers made of concrete or reinforced concrete. These silo containers, which form a concrete protective housing for each fuel element container, can have different designs. In a not previously published proposal for the formation of a protective container for receiving fuel element containers, the protective container has lateral supply air ducts on the lower edge of the casing and lateral exhaust air ducts in the region of the upper casing edge below the cover (patent application EP-AS-0 039 785). The arrangement of these supply air and extract air ducts results in natural convection within the concrete protective housing, which is used to dissipate the decay heat.
Es ist ersichtlich, daß besonders für die oberen Abluftkanäle bzw. Abluftöffnungen Maßnahmen getroffen werden müssen, die das Eindringen von Regenwasser verhindern. Es ist daher naheliegend, die Abluftöffnungen abzudekken. Wird eine zentrale Abluftöffnung am höchsten Punkt des Betonschutzgehäuses vorgesehen, ist es zweckmäßig, im Abstand zum Betonschutzgehäuse eine dachförmige Abdeckung über der Abluftöffnung anzuordnen (DE-A-2 821 780).It can be seen that measures must be taken especially for the upper exhaust air ducts or exhaust air openings to prevent the ingress of rainwater. It is therefore obvious to cover the exhaust air openings. If a central exhaust air opening is provided at the highest point of the concrete protective housing, it is expedient to arrange a roof-shaped cover at a distance from the concrete protective housing above the exhaust air opening (DE-A-2 821 780).
Der Erfindung liegt die Aufgabe zugrunde, ein Betonschutzgehäuse der eingangs beschriebenen Art derart auszugestalten, daß ein verbesserter Schutz des Betonschutzgehäuses gegen Eindringen von Wasser und Schnee erzielt wird.The invention has for its object to provide a concrete protective housing of the type described in such a way that improved protection of the concrete protective housing against the ingress of water and snow is achieved.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Abluftöffnung von senkrecht auf dem Betonschutzgehäuse befestigten Blechen oder dergleichen umgrenzt ist, die mit geringerem Abstand zur Abdeckung enden, und daß die Abdeckung mit senkrechten Stützen auf dem Betonschutzgehäuse befestigt ist, zwischen denen halbhohe Spritzbleche angeordnet sind.The object is achieved in that the exhaust opening is bounded by sheets or the like fastened vertically on the concrete protective housing, which end at a shorter distance from the cover, and in that the cover is fastened to the concrete protective housing with vertical supports, between which half-high spray plates are arranged.
Die dachförmige Abdeckung überspannt die am obersten Punkt des Betonschutzgehäuses angeordnete Abluftöffnung. Durch die erfindungsgemäße Anordnung von senkrechten Blechen um die Abluftöffnung wird ein labyrinthförmiges Durchströmen des entweichenden Luftstromes erreicht. Die Kombination des Abdekkungsdaches mit den senkrechten Schutzblechen und den halbhohen Spritzblechen ergibt einen erhöhten Schutz gegen seitlich einfallenden Schlagregen.The roof-shaped cover spans the exhaust air opening located at the top point of the concrete protective housing. A labyrinth-like flow of the escaping air flow is achieved by the arrangement according to the invention of vertical sheets around the exhaust air opening. The combination of the cover roof with the vertical mudguards and the half-height splash guards results in increased protection against driving rain falling from the side.
Anhand der Zeichnung wird nachstehend ein Ausführungsbeispiel der Erfindung näher erläutert.An exemplary embodiment of the invention is explained in more detail below with reference to the drawing.
Das Betonschutzgehäuse besteht aus einem palettenartig ausgebildeten Fußteil 3, einem darauf aufgesetzten zylindrischen Betonschutzmantel 4 und einem auf dem Betonschutzmantel 4 liegenden zylindrischen Deckel 5.The concrete protective housing consists of a
Das Fußteil 3 besteht aus einer quadratischen Bodenplatte 6, an deren Ecken jeweils ein Fuß 7 angeordnet ist, so daß das Fußteil 3 als unterfahrbare Palette ausgebildet ist. Der zylinderförmige Betonschutzmantel 4 ist auf das Fußteil 3 aufgesetzt und durch hier nicht gezeigte, geeignete Zentriervorrichtungen zum Fußteil 3 ausgerichtet. In dem Betonschutzmantel können hier nicht gezeigte axiale Bohrungen angeordnet sein. In diese Bohrungen wird Neutronenschutzmaterial eingebracht, das beispielsweise aus Kunststoffstäben bestehen kann.The
Der Betonschutzmantel 4 weist an seinem unteren Ende Ausnehmungen 9 auf, die als Zuluftkanäle dienen. Der auf dem Betonschutzmantel 4 liegende Deckel 5 weist im Zentrum eine Abluftöffnung 11 auf. Diese Abluftöffnung 11 ist von senkrechten Blechen 12 umgrenzt, die am Deckel 5 des Betonschutzgehäuses befestigt sind. Über der Abluftöffnung 11 ist eine dachförmige Abdeckung 13 angeordnet, die auf vier senkrechten Stützen 14 am Betonschutzgehäuse befestigt ist. Die dachförmige Abdeckung 13 hat eine von der Mitte zu den Seiten fallende Neigung und ist in der projizierten Fläche größer als die Abluftöffnung 11. Zwischen den Stützen 14 sind halbhohe Spritzbleche 16 angeordnet.The concrete protective jacket 4 has recesses 9 at its lower end, which serve as supply air ducts. The
Auf der Bodenplatte 6 des Fußteiles 3 ist ein hier strichpunktiert dargestellter Brennelementbehälter 15 aufrechtstehend angeordnet.On the
Bei Anlieferung des Brennelementbehälters 15 im Zwischenlager wird der Brennelementbehälter 15 auf die Bodenplatte 6 des Fußteiles 3 gestellt. Anschließend wird der Betonschutzmantel 4 auf das Fußteil 3 über den Brennelementbehälter 15 gestülpt. Als letztes wird der Deckel 5 auf das obere freie Ende des Betonschutzmantels 4 aufgesetzt.When the
Durch die Nachzerfallswärme der Kernreaktorbrennelemente wird die Luft im Betonschutzgehäuse 3, 4, 5 erwärmt. Die Warmluft tritt über die Abluftöffnung 11 aus, Frischluft tritt durch die im unteren Bereich des Betonschutzgehäuses angeordneten Zuluftöffnungen 9 ein. Es tritt ein Kamineffekt auf. Diese Naturzuglüftung dient zur Abfuhr der Nachzerfallswärme. Der entweichende Luftstrom aus der Abluftöffnung 11 wird von der dachförmigen Abdeckung 13 zur Seite und über die umgrenzenden Blechstreifen 12 gezwungen. Der Luftstrom entweicht labyrinthförmig.The air in the
Seitlich einfallender Schlagregen kann aufgrund der labyrinthförmigen Abdeckung der Abluftöffnung 11 nicht in diese eindringen.Driving rain falling on the side can occur due to the labyrinth-shaped covering of the exhaust opening 11, do not penetrate it.
Claims (1)
- A concrete protective casing for accommodating and storing a fuel element container which is suitable for transportation and storage and which is loaded with spent nuclear fuel elements, wherein the internal dimensions of the concrete protective casing are somewhat greater than the outside dimensions of the fuel element container and wherein at least one air intake opening is disposed in the lower region of the concrete protective casing and an air outlet opening is disposed at the highest point of the concrete protective casing, the air outlet being roofed-over by a cover means arranged at a spacing from the concrete casing, characterised in that the air outlet opening (11) is delimited by plates (12), strips or the like which are secured in an upright position on the concrete protective casing (3, 4, 5) and which terminate at a small spacing from the cover means (13), and that the cover means (13) is fixed on the concrete protective housing (3, 4, 5) by upright supports (14) between which are disposed half-height spray plates (16).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3144114 | 1981-11-06 | ||
| DE19813144114 DE3144114A1 (en) | 1981-11-06 | 1981-11-06 | CONCRETE PROTECTIVE HOUSING FOR DRY INTERMEDIATE STORAGE OF FUEL ELEMENT CONTAINERS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0079475A1 EP0079475A1 (en) | 1983-05-25 |
| EP0079475B1 true EP0079475B1 (en) | 1985-12-04 |
Family
ID=6145781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82109683A Expired EP0079475B1 (en) | 1981-11-06 | 1982-10-20 | Concrete protection container for the storage of fuel-element receptacles |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4527067A (en) |
| EP (1) | EP0079475B1 (en) |
| JP (1) | JPS58131595A (en) |
| CA (1) | CA1190667A (en) |
| DE (2) | DE3144114A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4780269A (en) * | 1985-03-12 | 1988-10-25 | Nutech, Inc. | Horizontal modular dry irradiated fuel storage system |
| FR2601809B1 (en) * | 1986-07-17 | 1988-09-16 | Commissariat Energie Atomique | DEVICE FOR THE DRY STORAGE OF MATERIALS GENERATING HEAT, PARTICULARLY RADIOACTIVE MATERIALS |
| US8718220B2 (en) | 2005-02-11 | 2014-05-06 | Holtec International, Inc. | Manifold system for the ventilated storage of high level waste and a method of using the same to store high level waste in a below-grade environment |
| US11373774B2 (en) | 2010-08-12 | 2022-06-28 | Holtec International | Ventilated transfer cask |
| WO2013158914A1 (en) | 2012-04-18 | 2013-10-24 | Holtec International, Inc. | Storing and/or transferring high level radioactive waste |
| US11887744B2 (en) | 2011-08-12 | 2024-01-30 | Holtec International | Container for radioactive waste |
| CN103366925A (en) * | 2013-07-23 | 2013-10-23 | 国家电网公司 | Rain cover with function of preventing birds from nesting of dry hollow-core paralleling reactor |
| US20160019991A1 (en) * | 2014-07-16 | 2016-01-21 | Westinghouse Electric Company Llc | Source of electricity derived from a spent fuel cask |
| JP6751637B2 (en) * | 2016-09-30 | 2020-09-09 | 日立造船株式会社 | Concrete cask |
| CN109448882A (en) * | 2018-10-17 | 2019-03-08 | 中广核工程有限公司 | Nuclear Power Station's Exhausted Fuels Dry storage concrete silo |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB305958A (en) * | 1927-10-12 | 1929-02-12 | James Muirhead | An improved air extractor for vehicles or buildings |
| FR739851A (en) * | 1931-07-15 | 1933-01-18 | Air, gas and smoke extractor | |
| US2924165A (en) * | 1957-06-10 | 1960-02-09 | Lewis S Doherty | Gravity roof ventilator |
| DE2513408A1 (en) * | 1975-03-26 | 1976-10-14 | Helmut Herrmann | Fresh air roof ventilation for caravan - passes air from roof edges under covering to highest point of roof |
| DE2821780A1 (en) * | 1978-05-18 | 1979-11-22 | Lovincic Miroslav | Transport coffin for radioactive cpd., esp. irradiated fuel elements - has ventilation openings at opposite ends and internal sealed capsules |
| DE3017767C2 (en) * | 1980-05-09 | 1984-11-15 | Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH, 3000 Hannover | Protective container for the transport, storage and radiation shielding of fuel element containers loaded with spent reactor fuel elements |
| FR2495817B1 (en) * | 1980-12-06 | 1988-05-13 | Kernforschungsz Karlsruhe | CONTAINER FOR STORING AND TRANSPORTING AT LEAST ONE SHELL FILLED WITH RADIO-ACTIVE WASTE INCORPORATED IN MOLTEN GLASS |
-
1981
- 1981-11-06 DE DE19813144114 patent/DE3144114A1/en not_active Withdrawn
-
1982
- 1982-10-20 DE DE8282109683T patent/DE3267831D1/en not_active Expired
- 1982-10-20 EP EP82109683A patent/EP0079475B1/en not_active Expired
- 1982-10-29 US US06/437,748 patent/US4527067A/en not_active Expired - Fee Related
- 1982-11-04 CA CA000414870A patent/CA1190667A/en not_active Expired
- 1982-11-04 JP JP57192643A patent/JPS58131595A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US4527067A (en) | 1985-07-02 |
| DE3144114A1 (en) | 1983-05-19 |
| EP0079475A1 (en) | 1983-05-25 |
| JPS58131595A (en) | 1983-08-05 |
| CA1190667A (en) | 1985-07-16 |
| DE3267831D1 (en) | 1986-01-16 |
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