EP0009424A1 - Vorrichtung und Verfahren zum Transportieren und Verpacken von Schadstoffen in einen dichten Behälter - Google Patents

Vorrichtung und Verfahren zum Transportieren und Verpacken von Schadstoffen in einen dichten Behälter Download PDF

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Publication number
EP0009424A1
EP0009424A1 EP79400583A EP79400583A EP0009424A1 EP 0009424 A1 EP0009424 A1 EP 0009424A1 EP 79400583 A EP79400583 A EP 79400583A EP 79400583 A EP79400583 A EP 79400583A EP 0009424 A1 EP0009424 A1 EP 0009424A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
plug
sheath
airlock
cell
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
Application number
EP79400583A
Other languages
English (en)
French (fr)
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EP0009424B1 (de
Inventor
René Goutard
Raymond Levardon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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.)
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Publication date
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of EP0009424A1 publication Critical patent/EP0009424A1/de
Application granted granted Critical
Publication of EP0009424B1 publication Critical patent/EP0009424B1/de
Expired legal-status Critical Current

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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
    • G21F7/00—Shielded cells or rooms
    • G21F7/005—Shielded passages through walls; Locks; Transferring devices between rooms
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S422/00—Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
    • Y10S422/903—Radioactive material apparatus

Definitions

  • the present invention due to the work of René GOUTARD and Raymond LEVARON of the AUTOMATISME et TECHNIQUE company, relates to a device for transferring and packaging in a sealed sheath, contaminating products, such as radioactive products, avoiding that the necessary operating process this sheathing results in contamination of the environment.
  • the invention also relates to a method for implementing this device.
  • the contaminating products about which such problems arise may for example be radioactive products, and in particular nuclear fuels which, after their use in nuclear reactors, must be transported to a reprocessing plant. But it can also be chemically or biologically active products, the ingestion of which or only the contact presents a danger even at low doses.
  • the object of the present invention is to create a device and a method making it possible to effectively solve, by simple means, the problems mentioned above, whether they are radioactive products or chemical or biologically active products.
  • the subject of the invention is a device for transferring a harmful product through an airlock secured to a sealed partition and for packaging this product in a sealed sheath, characterized in that it comprises a sleeve having a central recess establishing a tight communication vis-à-vis the environment between the airlock and said sheath, and a double bottom plug placed in the recess to prevent this communication, the plug and the sleeve being designed to be cut simultaneously so as to seal separately the airlock and said sheath by means of each of the plug bottoms.
  • the sleeve comprises an external groove perpendicular to its axis and the stopper comprises an internal groove perpendicular to its axis and disposed between its two bottoms, said grooves being substantially the same width and arranged normally. in the same radial plane, the external surface of the plug being capable of being made tightly integral with the internal surface of the recess formed in the plug around the entire periphery of this surface and over a distance, measured parallel to the axis of the sleeve, projecting on both sides of said grooves.
  • each of the plug bottoms comprises a gripping means arranged on the side opposite to the sheath when the plug is in place in the sleeve.
  • the sleeve is capable of being tightly connected to the sheath by one of its ends, and it comprises at its other end an external flange in which is formed a groove receiving a annular seal capable of sealingly engaging the internal wall of the airlock.
  • the sleeve may then comprise an external strip of the same diameter as the collar and placed at a certain distance from the latter, the strip being capable of coming to bear against a latching means associated with the airlock.
  • the groove formed on the sleeve is then placed between the strip and the end of the sleeve capable of being connected to the sheath.
  • FIGS. 1 and 2 1 denotes a sleeve connected in a strictly sealed manner to a sheath 2.
  • the sleeve 1 and the sheath 2 are assumed to be bodies of revolution having the axis of symmetry as the x axis. -x '. It is however possible to conceive, without departing from the scope of the invention, shapes of sleeve and sheath different from those shown and which, in particular do not have symmetry of revolution.
  • FIG. 1 denotes a sleeve connected in a strictly sealed manner to a sheath 2.
  • the sleeve 1 and the sheath 2 are assumed to be bodies of revolution having the axis of symmetry as the x axis. -x '. It is however possible to conceive, without departing from the scope of the invention, shapes of sleeve and sheath different from those shown and which, in particular do not have symmetry of revolution.
  • the wall of the sealed sheath 2 has only been represented by a solid continuous line, because this sheath, intended to receive the contaminating products to be transferred, is not strictly speaking part of the device according to the invention and n 'is discussed in what follows that due to its connection, strictly sealed, with the sleeve 1 forming, meanwhile, part of this device.
  • the sleeve 1 At its open end, opposite the sheath 2, the sleeve 1 has a flange 3, projecting radially outward perpendicularly to the axis xx 'and in which a groove 4 is formed to receive a seal 5. Between the flange 3 and the sheath 2, the sleeve 1 has an external strip 6, perpendicular to the axis xx 'and of the same external diameter as the flange 3. The role of this strip 6 is, as will be seen more far, to allow, in cooperation with the collar 3, the guide of the sleeve 1 in a cylindrical airlock.
  • the external face of the wall of the sleeve 1 has a groove 7, of determined depth, perpendicular to the axis xx 'of the sleeve.
  • the internal surface of the sleeve parallel to the axis xx ' is smooth, cylindrical, and, in the case of the embodiment shown, its cross section is circular.
  • the device according to the invention comprises a plug 8 with double bottom 8 'and 8 ", capable of sliding with a small clearance inside the sleeve 1 along the axis xx' of the sleeve which constitutes also the axis of this plug.
  • the plug 8 has, on the internal face of its wall parallel to the axis xx', a groove 9, perpendicular to the axis xx 'and of determined depth, the width of which is preferably of the same order as that of the external groove 7 of the sleeve 1.
  • the plug 8 further comprises on each of its bottoms 8 'and 8 "respectively a gripping means 10' projecting from the side of the bottom 8 'and 8" opposite the sheath 2 when the plug 8 is in place in the sleeve 1
  • the external peripheral surface of the plug 1 cylindrical and parallel to the axis x-x ', is smooth, and it is of such a nature that, under conditions which will be described later, it can be made integral at all points, in a strictly sealed manner on the smooth internal face of the sleeve 1, the sealed connection zone thus obtained, measured in the direction of the axis x-x ', projecting on both sides the grooves 7 and 9 formed in the sleeve 1 and the plug 8.
  • Figures ⁇ 3 to 12 show how the device which has just been described can be used to transfer contaminating products from a first contaminated cell, referenced in the figures by I, and to which the service personnel have not normally access, and a second uncontaminated cell II, to which the service personnel have access.
  • FIGS. 3 to 4 cell II is located below cell I and they are separated from each other by a sealed floor 11. Starting from this floor downwards, an airlock 12 ensures communication between cell I and cell II.
  • the inner end of this airlock is sealed by an assembly formed by the sealed assembly of the upper parts of a sleeve - 1 and of a plug 8, identical to those described above with reference to FIGS. 1 and 2, and which was abandoned in this lower end of the airlock 12 during a previous operation of transferring a load of contaminating products from cell I into cell II.
  • This assembly is held in the airlock 12 by a latching means 14 cooperating with the strip 6 of the sleeve 1.
  • the next step consists in removing from the new sleeve 1, which has just been introduced into the airlock 12, the new plug 8, in making it pass through the airlock 12, then in spreading it laterally in cell I to release the entrance to the airlock. These maneuvers are also carried out using the handling means 15 in engagement with the gripping means 10 "of the new plug 1 (FIG. 7).
  • a container 16 is brought into the contaminated cell I, in which the load of contaminating products to be transferred is located, above the airlock 12, then by passing it through this airlock and through the sleeve 1, we comes to deposit it in the sheath 2.
  • the handling means 15 is engaged with a gripping means placed at the upper part of the container 16 (FIG. 8).
  • the plug 8 is then replaced in the sleeve 1 while maintaining it, by the handling means 15, in a position where the grooves 7 and 9 of the sleeve 1 and of the plug 8 are in coincidence.
  • the external surface of the plug is made at all points, at a height exceeding on either side of the grooves 7 and 9 8 and the internal surface of the sleeve 1, so as to create between these surfaces, over the entire area considered, an absolute seal.
  • the last step consists, after having replaced the lifting means 13 under the sheath 2, to cut off the assembly formed by the sleeve 1 and the plug 8 of which it is integral, at the height of the grooves 7 and 9 (fig. 11) .
  • the means used is brazing.
  • the internal wall of the sleeve 1 as well as the external wall of the plug 8 are each hot coated with a homogeneous layer of brazing alloy adhering to these surfaces. Then these layers are rectified so as to allow the introduction of the plug 8 into the sleeve 1 with little play.
  • the internal surface of the layer of brazing alloy deposited on the sleeve with the external surface of the brazing alloy layer deposited on the plug when the latter occupies in the sleeve the location shown in FIG.
  • the brazing alloy is caused to melt by causing the inside this alloy the circulation of eddy currents by creation of a high frequency magnetic field using a loop located outside the sleeve 1. After the interruption of the high frequency field, the alloy of solder solidifies again, creating an absolutely tight connection between the sleeve and the plug.
  • a solution using a sleeve 1, a sheath 2 and a plug 8 made of steel, as well as sealing by brazing is particularly suitable for transferring radioactive products whose temperature can be relatively high.
  • the plug 8 and possibly the sheath 2 are made of non-metallic materials, such as for example plastic, other means such as bonding, ultrasonic welding, etc. can be applied to obtain the tight connection at all points between the sleeve 1 and the plug 8.
  • the sectioning at the level of the grooves 7 and 9 of the integral assembly constituted by the sleeve 1 and the sheath 2 on the one hand, with the plug 8 on the other hand, can be carried out by any suitable means providing a cutting plane clean and smooth, for example by cutting wheels 18 as has been shown diagrammatically in FIGS. 2 and 11. This cutting-off means is not part of the invention.
  • the device and method according to the invention make it possible, as we have just seen, to transfer contaminating products from a contaminated cell I into an uncontaminated cell II without contamination of the transferred products or contamination of cell I can spread outside this cell.
  • possible contamination is located on a circumference in the cutting plane, at the location of the connection interface between the sleeve 1 and the plug 8. It is then easy to eliminate by conventional decontamination means and well known per se, this slight possible contamination, strictly superficial.
  • the invention is not limited to the exemplary embodiments to which the description refers.
  • the relative arrangement of the sheath and the sleeve, or else the relative arrangements of cells I and II may vary, as well as the shapes of the sheath, of the sleeve and of the plug, without thereby departing from the scope of the invention. .

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Closures For Containers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Packages (AREA)
EP79400583A 1978-08-25 1979-08-21 Vorrichtung und Verfahren zum Transportieren und Verpacken von Schadstoffen in einen dichten Behälter Expired EP0009424B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7824625A FR2434464A1 (fr) 1978-08-25 1978-08-25 Dispositif et procede de transfert et de conditionnement dans une gaine etanche de produits nocifs
FR7824625 1978-09-25

Publications (2)

Publication Number Publication Date
EP0009424A1 true EP0009424A1 (de) 1980-04-02
EP0009424B1 EP0009424B1 (de) 1982-12-01

Family

ID=9212063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400583A Expired EP0009424B1 (de) 1978-08-25 1979-08-21 Vorrichtung und Verfahren zum Transportieren und Verpacken von Schadstoffen in einen dichten Behälter

Country Status (5)

Country Link
US (1) US4281691A (de)
EP (1) EP0009424B1 (de)
JP (1) JPS5531994A (de)
DE (1) DE2964145D1 (de)
FR (1) FR2434464A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080006A1 (de) * 1981-03-27 1983-06-01 Communaute Europeenne De L'energie Atomique (Euratom) Anordnung zum Schweissen von Kernbrennstoffstabzapfen
GB2116900A (en) * 1982-02-18 1983-10-05 Nat Nuclear Corp Ltd Dry storage of irradiated nuclear fuel
EP0151336A2 (de) * 1983-09-28 1985-08-14 Hewlett-Packard Company Verarbeitungssystem für integrierte Schaltkreise
FR2569042A1 (fr) * 1984-06-18 1986-02-14 British Nuclear Fuels Plc Procede de transfert de materiaux radioactifs d'une enceinte a l'exterieur

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335712A (en) * 1979-03-26 1982-06-22 Trexler Philip C Isolation enclosure members
DE3324696C2 (de) * 1983-07-08 1986-05-15 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH, 3000 Hannover Verfahren und Vorrichtung zum Befüllen eines Metallbehälters mit einer hochradioaktive Spaltprodukte enthaltenden Glasschmelze
US4616683A (en) * 1983-09-28 1986-10-14 Hewlett-Packard Company Particle-free dockable interface for integrated circuit processing
US4532970A (en) * 1983-09-28 1985-08-06 Hewlett-Packard Company Particle-free dockable interface for integrated circuit processing
US4534389A (en) * 1984-03-29 1985-08-13 Hewlett-Packard Company Interlocking door latch for dockable interface for integrated circuit processing
FR2560710B1 (fr) * 1984-03-02 1986-11-07 Sgn Soc Gen Tech Nouvelle Procede de transfert d'objet sans rupture de confinement
DE3440277C1 (de) * 1984-11-03 1986-05-22 Siempelkamp Gießerei GmbH & Co, 4150 Krefeld Verfahren zum Einbringen von radioaktiven Abfaellen in einen Schmelzofen und Vorrichtung zur Durchfuehrung des Verfahrens
DE3814938A1 (de) * 1988-05-03 1989-11-16 Wiederaufarbeitung Von Kernbre Andockvorrichtung zum anschliessen eines transport- und/oder lagerbehaelters an einen radioaktiv belasteten arbeitsraum
US7771156B2 (en) * 2003-09-25 2010-08-10 Corning Incorporated Method and apparatus for reactor monolith loading

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1428381A (fr) * 1964-03-12 1966-02-11 Snam Spa Dispositif permettant le transfert vers l'extérieur d'organes ou d'appareils hors de récipients fonctionnant sous pression ou contenant des milieux contaminés
FR2315831A7 (fr) * 1975-06-28 1977-01-21 Kernforschung Gmbh Ges Fuer Dispositif pour l'eclusage d'objets contamines radioactifs a travers une ouverture menagee dans la paroi d'un reservoir

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1395856A (fr) * 1964-03-06 1965-04-16 Electricite De France Machine de chargement et de déchargement pour réacteur nucléaire
FR1584761A (de) * 1968-06-05 1970-01-02
DE2637859C2 (de) * 1976-08-23 1985-01-31 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Einrichtung zum Einbetonieren von radioaktiven Abfällen in Abfallfässern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1428381A (fr) * 1964-03-12 1966-02-11 Snam Spa Dispositif permettant le transfert vers l'extérieur d'organes ou d'appareils hors de récipients fonctionnant sous pression ou contenant des milieux contaminés
FR2315831A7 (fr) * 1975-06-28 1977-01-21 Kernforschung Gmbh Ges Fuer Dispositif pour l'eclusage d'objets contamines radioactifs a travers une ouverture menagee dans la paroi d'un reservoir

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EURATOM, Bulletin van de Europese Gemeenschap voor Atoomenergie (1963), 1, pages 22-29, Brussel (BE) E. VAN DEN BEMDEN: "Plutonium als synthetische energiebron" * Page 24, figure 1B * *
KERNTECHNIK, 7ieme Annee, No. 12, Decembre 1965, pages 533-541 Munchen (DE) G. BOHME, W. STEPHAN: "Heisse Zellen fur mittlere und hohe Aktivitaten". * Page 537, figure et colonne de gauche, alinea 1 * *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080006A1 (de) * 1981-03-27 1983-06-01 Communaute Europeenne De L'energie Atomique (Euratom) Anordnung zum Schweissen von Kernbrennstoffstabzapfen
GB2116900A (en) * 1982-02-18 1983-10-05 Nat Nuclear Corp Ltd Dry storage of irradiated nuclear fuel
EP0151336A2 (de) * 1983-09-28 1985-08-14 Hewlett-Packard Company Verarbeitungssystem für integrierte Schaltkreise
EP0151336A3 (en) * 1983-09-28 1988-04-27 Hewlett-Packard Company System for integrated circuit processing
FR2569042A1 (fr) * 1984-06-18 1986-02-14 British Nuclear Fuels Plc Procede de transfert de materiaux radioactifs d'une enceinte a l'exterieur

Also Published As

Publication number Publication date
FR2434464B1 (de) 1981-01-16
JPS5531994A (en) 1980-03-06
FR2434464A1 (fr) 1980-03-21
US4281691A (en) 1981-08-04
DE2964145D1 (en) 1983-01-05
EP0009424B1 (de) 1982-12-01
JPS631558B2 (de) 1988-01-13

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