EP0009424A1 - Device and method for the transfer and packaging of noxious agents in a sealed container - Google Patents

Device and method for the transfer and packaging of noxious agents in a sealed container 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
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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
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German (de)
French (fr)
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EP0009424B1 (en
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
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Commissariat a lEnergie Atomique CEA
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Publication of EP0009424A1 publication Critical patent/EP0009424A1/en
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Publication of EP0009424B1 publication Critical patent/EP0009424B1/en
Expired legal-status Critical Current

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    • 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. .

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  • 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)

Abstract

Dispositif de transfert et de conditionnement dans une gaine (2) étanche de produits contaminants tels que des produits radioactifs, ainsi qu'un procédé pour la mise en oeuvre de ce dispositif. Afin de permettre le transfert des produits contaminants (16) dans une gaine étanche (2) sans contaminer l'environnement, un dispositif comprenant un manchon (1) muni d'un évidement central est disposé entre un sas (12) et la gaine, et un bouchon (8) à double fond est disposé dans l'évidement. Le manchon (1) et le bouchon (8) sont tronçonnés simultanément de façon à obturer séparément le sas et la gaine. Application au transfert dans une usine de retraitement des combustibles utilisés dans les réacteurs nucléaires.Device for transfer and conditioning in a sealed sheath (2) of contaminating products such as radioactive products, as well as a method for implementing this device. In order to allow the transfer of the contaminating products (16) into a sealed sheath (2) without contaminating the environment, a device comprising a sleeve (1) provided with a central recess is placed between an airlock (12) and the sheath, and a double bottom plug (8) is arranged in the recess. The sleeve (1) and the plug (8) are cut simultaneously so as to seal the airlock and the sheath separately. Application to the transfer to a reprocessing plant of fuels used in nuclear reactors.

Description

La présente invention due aux travaux de René GOUTARD et Raymond LEVARON de la Sté AUTOMATISME et TECHNIQUE, concerne un dispositif de transfert et de conditionnement dans une gaine étanche, de produits contaminants, tels notamment que des produits radioactifs, en évitant que le processus opératoire nécessaire à cette mise en gaine se traduise par une contamination de l'environnement. L'invention concerne également un procédé pour la mise en oeuvre de ce dispositif.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.

Pour pouvoir transporter sans danger des produits contaminants, il est généralement nécessaire de les placer dans des emballages rigoureusement étanches et, dans toute la mesure du possible, inviolables. Ceci pose le problème de la conception de ces emballages étanches et pose, d'autre part, le problème du transfert dans ces emballages des produits contaminants sans provoquer la contamination de l'environnement.In order to be able to safely transport contaminating products, it is generally necessary to place them in tightly sealed and, as far as possible, tamper-proof packaging. This poses the problem of the design of these sealed packages and poses, on the other hand, the problem of transferring into these packages contaminating products without causing contamination of the environment.

Les produits contaminants à propos desquels de tels problèmes surgissent peuvent être par exemple des produits radioactifs, et notamment des combustibles nucléaires qui, après leur utilisation dans des réacteurs nucléaires, doivent être transportés dans une usine de retraitement. Mais ce peut être aussi dés produits chimiquement ou biologiquement actifs, dont l'ingestion ou seulement le contact présente un danger même à faible dose.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.

Le but de la présente invention est de créer un dispositif et un procédé permettant de résoudre efficacement, par des moyens simples, les problèmes évoqués plus haut, qu'il s'agisse de produits radioactifs ou de produits chimiques ou biologiquement actifs.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.

A cet effet, l'invention a pour objet un dispositif de transfert d'un produit nocif au travers d'un sas solidaire d'une cloison étanche et de conditionnement de ce produit dans une gaine étanche, caractérisé en ce qu'il comprend un manchon comportant un évidement central établissant une communication étanche vis-à-vis de l'environnement entre le sas et ladite gaine, et un bouchon à double fond disposé dans l'évidement pour interdire cette communication, le bouchon et le manchon étant prévus pour être tronçonnés simultanément de façon à obturer séparément le sas et ladite gaine au moyen de chacun des fonds du bouchon.To this end, 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.

Conformément à un mode de réalisation préféré de l'invention, le manchon comprend une saignée externe perpendiculaire à son axe et le bouchon comprend une saignée interne perpendiculaire à son axe et disposée entre ses deux fonds, lesdites saignées étant sensiblement de même largeur et disposées normalement dans le même plan radial, la surface externe du bouchon étant susceptible d'être rendue solidaire de façon étanche de la surface interne de l'évidement formé dans le bouchon sur tout le pourtour de cette surface et sur une distance, mesurée parallèlement à l'axe du manchon, dépassant de part et d'autre lesdites saignées.According to a preferred embodiment of the invention, 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.

Selon une autre caractéristique de l'invention, chacun des fonds du bouchon comporte un moyen de préhension disposé du côté opposé à la gaine lorsque le bouchon est en place dans le manchon.According to another characteristic of the invention, 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.

Selon encore une autre caractéristique de l'invention, le manchon est susceptible d'être relié de façon étanche à la gaine par l'une de ses extrémités, et il comporte à son autre extrémité une collerette externe dans laquelle est ménagée une gorge recevant un joint d'étanchéité annulaire susceptible de venir engager de façon étanche la paroi interne du sas. Le manchon peut alors comporter un bandeau externe de même diamètre que la collerette et placé à une certaine distance de celle-ci, le bandeau étant susceptible de venir en appui contre un moyen d'encliquetage associé au sas. De préférence, la saignée formée sur le manchon est alors disposée entre le bandeau et l'extrémité du manchon susceptible d'être reliée à la gaine.According to yet another characteristic of the invention, 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. Preferably, 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.

L'invention concerne également un procédé de mise en oeuvre du dispositif ci-dessus, pour transférer dans une gaine étanche des produits nocifs contenus dans une cellule, au travers d'un sas solidaire de la cloison de la cellule, caractérisé en ce qu'il comprend les étapes successives suivantes :

  • - on retire vers l'intérieur de la cellule l'ensemble formé par l'assemblage étanche des parties supérieures d'un premier manchon 1 et d'un premier bouchon 8 obturant le sas 12 et on introduit simultanément l'extrémité d'un second manchon opposée à la gaine, ledit manchon étant obturé par un second bouchon 8 et étant solidaire d'une gaine 2. jusqu'à ce que le bandeau 6 se trouve à l'intérieur du sas 12., où il est maintenu par un moyen d'encliquetage 14 ,
  • - on achève de retirer l'ensemble obturant le sas 12 et on l'écarte latéralement afin de dégager l'orifice de ce dernier, débouchant dans la cellule,
  • - on retire le second bouchon 8 du second manchon 1 vers l'intérieur de la cellule et on l'écarte latéralement de façon à dégager l'orifice du sas 12 débouchant dans la cellule,
  • - on introduit dans la gaine 2 solidaire du second manchon 1 les produits nocifs à transférer, contenus dans la cellule,
  • - on obture le second manchon 1. au moyen du second bouchon 8 , en amenant la saignée interne ,9 de ce dernier dans le même plan radial que la saignée externe 7 du second manchon 1 ,
  • - on solidarise de façon étanche le second bouchon 8 du second manchon 1 ,
  • - on tronçonne l'ensemble constitué par le second manchon 1 et par le second bouchon '8 selon un plan radial passant par les saignées 7, 9 .
The invention also relates to a method of implementing the above device, for transferring harmful products contained in a cell into a sealed sheath, through an airlock secured to the partition of the cell, characterized in that it includes the following successive stages:
  • - the assembly formed by the sealed assembly of the upper parts of a first sleeve 1 and of a first plug 8 closing the airlock 12 is removed towards the interior of the cell and the end of a second is simultaneously introduced sleeve opposite the sheath, said sleeve being closed by a second plug 8 and being integral with a sheath 2. until the strip 6 is inside the airlock 12., where it is held by means latching 14,
  • - the assembly closing off the airlock 12 is completed and it is moved aside laterally in order to clear the orifice of the latter, opening into the cell,
  • the second plug 8 is removed from the second sleeve 1 towards the inside of the cell and it is moved aside laterally so as to release the orifice of the airlock 12 opening into the cell,
  • the harmful products to be transferred, contained in the cell, are introduced into the sheath 2 integral with the second sleeve 1
  • the second sleeve 1 is closed off by means of the second plug 8, by bringing the internal groove 9 of the latter into the same radial plane as the external groove 7 of the second sleeve 1,
  • the second plug 8 of the second sleeve 1 is tightly secured,
  • - the assembly consisting of the second sleeve 1 and the second plug '8 is sectioned along a radial plane passing through the grooves 7, 9.

L'invention va être décrite plus en détail en se référant à un exemple de réalisation, non limitatif, représenté sur les dessins ci-joints dans lesquels :

  • - la figure 1 est une vue en coupe du dispositif selon l'invention,
  • - la figure 2 est une vue en coupe, analogue à la figure 1 du dispositif selon l'invention mais dans laquelle le manchon et le bouchon constituant ce dispositif sont représentés séparément,
  • - les figures 3 à 12 montrent les différentes étapes du procédé selon l'invention.
The invention will be described in more detail with reference to an exemplary embodiment, not limiting, shown in the attached drawings in which:
  • - Figure 1 is a sectional view of the device according to the invention,
  • FIG. 2 is a sectional view, similar to FIG. 1 of the device according to the invention but in which the sleeve and the plug constituting this device are shown separately,
  • - Figures 3 to 12 show the different steps of the method according to the invention.

Sur les figures 1 et 2, 1 désigne un manchon relié de façon rigoureusement étanche à une gaine 2. Sur l'exemple représenté, le manchon 1 et la gaine 2 sont supposés être des corps de révolution ayant pour axe de symétrie l'axe x-x'. Il est toutefois possible de concevoir, sans sortir du cadre de l'invention des formes de manchon et de gaine différentes de celles représentés et qui, notamment ne présentent pas de symétrie de révolution. Sur la figure 1, la paroi de la gaine étanche 2 a seulement été représentée par un trait fin continu, car cette gaine, destinée à recevoir les produits contaminants à transférer, ne fait pas à proprement parler partie du dispositif selon l'invention et n'est évoquée dans ce qui va suivre qu'en raison de sa liaison, rigoureusement étanche, avec le manchon 1 faisant, quant à lui, partie de ce dispositif.In FIGS. 1 and 2, 1 denotes a sleeve connected in a strictly sealed manner to a sheath 2. In the example shown, 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. In FIG. 1, 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.

A son extrémité ouverte, opposée à la gaine 2, le manchon 1 comporte une collerette 3, faisant saillie radialement à l'extérieur perpendiculairement à l'axe x-x' et dans laquelle est ménagée une gorge 4 pour recevoir un joint d'étanchéité 5. Entre la collerette 3 et la gaine 2, le manchon 1 comporte un bandeau externe 6, perpendiculaire à l'axe x-x' et de même diamètre extérieur que la collerette 3. Le rôle de ce bandeau 6 est, ainsi qu'on le verra plus loin, de permettre, en coopération avec la collerette 3, le guidage du manchon 1 dans un sas cylindrique.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.

Entre le bandeau 6 et l'extrémité du manchon 1 reliée de façon rigoureusement étanche à la gaine 2, et à une distance relativement réduite de cette extrémité, la face externe de la paroi du manchon 1 présente une saignée 7, de profondeur déterminée, perpendiculaire à l'axe x-x' du manchon. La surface interne du manchon parallèle à l'axe x-x' est lisse, cylindrique, et, dans le cas de l'exemple de réalisation représenté, sa section droite est circulaire.Between the strip 6 and the end of the sleeve 1 connected in a strictly sealed manner to the sheath 2, and at a relatively reduced distance from this end, 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.

Outre le manchon 1, le dispositif selon l'invention comporte un bouchon 8 à double fond 8' et 8", susceptible de coulisser avec un faible jeu à l'intérieur du manchon 1 le long de l'axe x-x' du manchon qui constitue également l'axe de ce bouchon. La cavité interne du bouchon délimitée par les deux fonds 8' et 8" et par la paroi du bouchon parallèle à l'axe x-x', est rigoureusement étanche.In addition to the sleeve 1, 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 internal cavity of the plug delimited by the two bottoms 8 'and 8 "and by the wall of the plug parallel to the axis x-x', is strictly sealed.

Entre ses deux fonds 8' et 8", le bouchon 8 présente, sur la face interne de sa paroi parallèle à l'axe x-x' une saignée 9, perpendiculaire à l'axe x-x' et de profondeur déterminée, et dont la largeur est de préférence du même ordre que celle de la saignée externe 7 du manchon 1.Between its two bottoms 8 'and 8 ", 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.

Le bouchon 8 comporte en outre sur chacun de ses fonds 8' et 8" respectivement un moyen de préhension 10' faisant saillie du côté du fond 8' et 8" opposé à la gaine 2 quand le bouchon 8 est en place dans le manchon 1. La surface périphérique externe du bouchon 1, cylindrique et parallèle à l'axe x-x', est lisse, et elle est de nature telle que, dans des conditions qui seront décrites plus loin, elle peut être rendue en tous points solidaire, de façon rigoureusement étanche de la face interne lisse du manchon 1, la zone de liaison étanche ainsi obtenue, mesurée dans la direction de l'axe x-x', dépassant de part et d'autre les saignées 7 et 9 pratiquées dans le manchon 1 et le bouchon 8.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.

Les figures·3 à 12 montrent comment le dispositif qui vient d'être décrit peut être mis en oeuvre pour transférer des produits contaminants depuis une première cellule contaminée, référencée sur les figures par I, et à laquelle le personnel de service n'a pas normalement accès, et une seconde cellule non contaminée II, à laquelle le personnel de service a accès.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.

Sur les figures 3 à 4, la cellule II est située au-dessous de la cellule I et elles sont séparées l'une de l'autre par un plancher étanche 11. Partant de ce plancher vers le bas, un sas 12 assure la communication entre la cellule I et la cellule II. L'extrémité intérieure de ce sas est étanchée par un ensemble formé par l'assemblage étanche des parties supérieures d'un manchon -1 et d'un bouchon 8, identique à ceux décrits plus haut en se référant aux figures 1 et 2, et qui a été abandonné dans cette extrémité inférieure du sas 12 lors d'une précédente opération de transfert d'une charge de produits contaminants depuis la cellule I dans la cellule II. Cet ensemble est maintenu dans le sas 12 par un moyen d'encliquetage 14 coopérant avec le bandeau 6 du manchon 1. En outre cet ensemble est guidé dans le sas 12 d'une part par le bandeau 6 du manchon 1 et d'autre part par la collerette 3 de ce même manchon, le joint 5 placé dans la gorge 4 de cette collerette assurant d'autre part l'étanchéité entre cette collerette et la paroi interne du sas 12, donc l'étanchéité entre les cellules I et II (figure 3).In 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. In addition this assembly is guided in the airlock 12 on the one hand by the strip 6 of the sleeve 1 and on the other hand by the collar 3 of this same sleeve, the seal 5 placed in the groove 4 of this collar ensuring, on the other hand, the seal between this collar and the internal wall of the airlock 12, therefore the seal between cells I and II ( figure 3).

Si l'on veut transférer une nouvelle charge de produits contaminants depuis la cellule I dans la cellule II, on vient présenter sous le sas 12, dans la cellule II, une gaine 2 vide, munie de son manchon 1, dont elle est solidaire de façon rigoureusement étanche, et de son bouchon 8. La gaine 2 est alors verticale, son extrémité opposée au manchon 1 reposant sur un moyen de levage 13, non décrit en détail car ne faisant par partie de l'invention (figure 4).If we want to transfer a new load of contaminating products from cell I into cell II, we come to present under the airlock 12, in cell II, an empty sheath 2, provided with its sleeve 1, of which it is integral with strictly sealed, and its plug 8. The sheath 2 is then vertical, its end opposite to the sleeve 1 resting on a lifting means 13, not described in detail since it is not part of the invention (Figure 4).

A l'aide de ce moyen de levage 13, on soulève la gaine 2 pour introduire dans le sas 12 l'extrémité supérieure du manchon 1. En même temps que l'on procède à cette introduction, on retire progressivement vers le haut l'ensemble constitué par un autre manchon 1 et un autre bouchon 8 et précédemment abandonné dans le sas 12. Ce retrait s'opère par l'intermédiaire d'un moyen de manutention 15, non décrit plus en détail car ne faisant pas partie de l'invention, et dont il suffit de dire qu'il opère à l'intérieur de la cellule contaminée I en étant télécommandé à partir de la cellule non contaminée II. Ce moyen de manutention entre en prise avec le moyen de préhension 10" fixé sur la partie supérieure de bouchon 8 abandonnée précédemment dans le sas 12.With the aid of this lifting means 13, the sheath 2 is raised to introduce into the airlock 12 the upper end of the sleeve 1. At the same time as this introduction is carried out, the progressively withdrawn set consisting of another sleeve 1 and a another plug 8 and previously abandoned in the airlock 12. This removal takes place by means of a handling means 15, not described in more detail since it is not part of the invention, and of which it suffices to say that 'it operates inside the contaminated cell I while being remotely controlled from the uncontaminated cell II. This handling means engages with the gripping means 10 "fixed on the upper part of the plug 8 previously abandoned in the airlock 12.

L'introduction du nouveau manchon 1 dans le sas 12 et le retrait de l'ancien manchon 1 vers le haut se poursuivent jusqu'à ce que le bandeau 6 du nouveau manchon 1 vienne s'encliqueter sur les moyens d'enclenchement 14, le nouveau manchon 1, la gaine 2 dont il est solidaire, ainsi que le nouveau bouchon 8 qui leur est associé, restant désormais suspendus au sas 12 par ces moyens d'enclenchement 14, même si les moyens de levage 13 sont alors éclipsés (figure 5).The introduction of the new sleeve 1 into the airlock 12 and the withdrawal of the old sleeve 1 upwards continue until the strip 6 of the new sleeve 1 comes to snap onto the engagement means 14, the new sleeve 1, the sheath 2 of which it is integral, as well as the new plug 8 which is associated with them, henceforth hanging from the airlock 12 by these latching means 14, even if the lifting means 13 are then eclipsed (FIG. 5 ).

Le retrait vers le haut de l'ensemble constitué par les parties supérieures de l'ancien manchon 1 et de son bouchon 8 est alors poursuivi par l'intermédiaire du moyen de manutention 15 puis, lorsque cet ensemble est complètement extrait du sas 12, on l'écarte latéralement, toujours à l'aide du moyen de manutention 15, dans la cellule I pour dégager l'entrée du sas 12 (figure 6).The upward withdrawal of the assembly constituted by the upper parts of the old sleeve 1 and of its plug 8 is then continued by means of the handling means 15 then, when this assembly is completely extracted from the airlock 12, we the sideways, always using the handling means 15, in the cell I to clear the entrance to the airlock 12 (Figure 6).

L'étape suivante consiste à retirer du nouveau manchon 1, qui vient d'être introduit dans le sas 12, le nouveau bouchon 8, à lui faire traverser le sas 12, puis à l'écarter latéralement dans la cellule I pour dégager l'entrée du sas. Ces manoeuvres s'opèrent également à l'aide du moyen de manutention 15 en prise avec le moyen de préhension 10" du nouveau bouchon 1 (figure 7).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).

Toujours à l'aide du moyen de manutention 15, on amène, dans la cellule contaminée I, un conteneur 16, dans lequel se trouve la charge de produits contaminants à transférer, au-dessus du sas 12, puis en le faisant passer à travers ce sas et à travers le manchon 1, on vient le déposer dans la gaine 2. Pour effectuer cette manutention, le moyen de manutention 15 est en prise avec un moyen de préhension placé à la partie supérieure du conteneur 16 (figure 8).Still using the handling means 15, 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. To carry out this handling, the handling means 15 is engaged with a gripping means placed at the upper part of the container 16 (FIG. 8).

On remet ensuite en place le bouchon 8 dans le manchon 1 en le maintenant, par le moyen de manutention 15, dans une position où les saignées 7 et 9 du manchon 1 et du bouchon 8 sont en coïncidence. Dans cette position, et à l'aide d'un moyen, schématiquement repéré 17 sur la figure 20, on rend en tous points solidaires, sur une hauteur dépassant de part et d'autre des saignées 7 et 9, la surface externe du bouchon 8 et la surface interne du manchon 1, de façon à créer entre ces surfaces, sur toute la zone considérée, une étanchéité absolue.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. In this position, and with the aid of a means, diagrammatically marked 17 in FIG. 20, 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.

La dernière étape consiste, après avoir replacé sous la gaine 2 le moyen de levage 13, à tronçonner l'ensemble formé par le manchon 1 et le bouchon 8 dont il est solidaire, à la hauteur des saignées 7 et 9 (fig. 11). On peut alors, à l'aide du moyen 13, abaisser la gaine 2 dans laquelle se trouve le conteneur 13, puis en reprenant l'ensemble (gaine 2 + manchon 1) par le moyen de préhension 10', à l'aide d'un moyen de manutention non représenté, évacuer la gaine ainsi garnie par exemple vers un moyen de transport destiné à l'acheminer vers l'usine de retraitement des produits contaminants placés à l'intérieur du conteneur 16.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) . We can then, using the means 13, lower the sheath 2 in which the container 13 is located, then taking up the assembly (sheath 2 + sleeve 1) by the gripping means 10 ', using 'a handling means not shown, evacuate the sheath thus stocked, for example towards a means of transport intended to convey it to the plant for reprocessing contaminating products placed inside the container 16.

Les différentes étapes du transfert étant ainsi effectuées, il reste à l'intérieur du sas 12, maintenu par les moyens d'enclenchement 14, un ensemble constitué par la partie supérieure du manchon 1 et la partie supérieure du bouchon 8, qui assure, par le joint 5 de la collerette 3, l'étanchéité entre la cellule I et la cellule II.The different stages of transfer being thus carried out, there remains inside the airlock 12, maintained by the latching means 14, an assembly constituted by the upper part of the sleeve 1 and the upper part of the plug 8, which ensures, by the seal 5 of the collar 3, the seal between cell I and cell II.

Les moyens mise en oeuvre pour rendre solidaires en tous points, de façon rigoureusement étanche, la surface interne du manchon 1 et la surface externe du bouchon 8, varient selon les cas.The means used to make integral at all points, in a strictly sealed manner, the internal surface of the sleeve 1 and the external surface of the plug 8, vary according to the case.

Dans le cas où le manchon 1, la gaine 2 et le bouchon 8 sont en métal, notamment en acier, le moyen utilisé est la brasure. A cet effet, la paroi interne du manchon 1 ainsi que la paroi externe du bouchon 8 sont chacune revêtues à chaud d'une couche homogène d'alliage de brasure adhérente à ces surfaces. Puis ces couches sont rectifiées de façon à permettre l'introduction du bouchon 8 dans le manchon 1 avec un faible jeu. Pour rendre solidaires en tous points, de façon rigoureusement étanche, la surface interne de la couche d'alliage de brasure déposée sur le manchon avec la surface externe de la couche d'alliage de brasure déposée sur le bouchon, lorsque celui-ci occupe dans le manchon l'emplacement représenté sur la figure 10, on provoque la fusion de l'alliage de brasure en provoquant à l'intérieur de cet alliage la circulation de courants de Foucault par création d'un champ magnétique de haute fréquence à l'aide d'une boucle située à l'extérieur du manchon 1. Après l'interruption du champ haute fréquence, l'alliage de brasure se solidifie à nouveau, réalisant entre le manchon et le bouchon une liaison en tous points absolument étanche. Une telle solution utilisant un manchon 1, une gaine 2 et un bouchon 8 en acier, ainsi qu'une étanchéité par brasure, convient particulièrement bien au transfert de produits radioactifs dont la température peut être relativement élevée.In the case where the sleeve 1, the sheath 2 and the plug 8 are made of metal, in particular steel, the means used is brazing. For this purpose, 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. To make integral in all points, in a strictly sealed manner, 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. 10, 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. Such 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.

Au lieu d'une liaison par brasure, on peut aussi dans ce cas envisager une liaison par magnéto-formage, qui consiste à rétreindre, au niveau des saignées 7 et 9, le manchon 1 sur le bouchon 8 à l'aide d'un puissant champ magnétique, la boucle 17 est alors remplacée par des enroulements magnétisants. Cette solution donne également une liaison en tous points rigoureusement étanche des deux surfaces, si celles-ci ont au préalable été soigneusement rectifiées. On évite ainsi le dépôt préalable sur ces surfaces d'une couche d'alliage de brasure.Instead of a solder connection, it is also possible in this case to consider a magneto-forming connection, which consists in shrinking, at the grooves 7 and 9, the sleeve 1 on the plug 8 using a strong magnetic field, the loop 17 is then replaced by magnetizing windings. This solution also gives a strictly tight connection in all points of the two surfaces, if these have been carefully rectified beforehand. This avoids the prior deposition on these surfaces of a layer of brazing alloy.

Si par contre le manchon 1, le bouchon 8 et éventuellement la gaine 2 sont en matériaux non métalliques, tels par exemple qu'en matière plastique, d'autres moyens tels qu'un collage, une soudure par ultra-sons, etc... peuvent être appliqués pour obtenir la jonction en tous points étanche entre le manchon 1 et le bouchon 8.If on the other hand the sleeve 1, 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.

Le tronçonnage au niveau des saignées 7 et 9 de l'ensemble solidaire constitué par le manchon 1 et la gaine 2 d'une part, avec le bouchon 8 d'autre part, peut s'effectuer par tout moyen approprié fournissant un plan de coupe net et lisse, par exemple par des molettes de coupe 18 comme cela a été schématisé sur les figures 2 et 11. Ce moyen de tronçonnage ne fait pas partie de l'invention.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.

Le dispositif et le procédé selon l'invention permettent, ainsi qu'on vient de le voir, de transférer des produits contaminants depuis une cellule contaminée I dans une cellule non contaminée II sans que la contamination des produits transférés ou la contamination de la cellule I puisse se propager en dehors de cette cellule. Après tronçonnage du manchon 1 et du bouchon 8 au niveau des saignées 7 et 9, une contamination éventuelle est localisée sur une circonférence dans le plan de tronçonnage, à l'emplacement de l'interface de liaison entre le manchon 1 et le bouchon 8. Il est alors facile d'éliminer par des moyens de décontamination classiques et bien connus en soi, cette faible contamination éventuelle, strictement superficielle.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. After cutting off the sleeve 1 and the plug 8 at the grooves 7 and 9, 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.

Bien entendu, l'invention n'est pas limitée aux exemples de réalisation auxquels se réfère la description. Par exemple, la disposition relative de la gaine et du manchon, ou bien les dispositions relatives des cellules I et II peuvent varier, ainsi que les formes de la gaine, du manchon et du bouchon, sans sortir pour autant du cadre de l'invention.Of course, the invention is not limited to the exemplary embodiments to which the description refers. For example, 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. .

Claims (11)

1. Dispositif de transfert d'un produit nocif au travers d'un sas solidaire d'une cloison étanche et de conditionnement de ce produit dans une gaine étanche, caractérisé en ce qu'il comprend un manchon comportant un évidement central établissant une communication étanchée vis-à-vis de l'environnement entre le sas et ladite gaine, et un bouchon à double fond disposé dans l'évidement pour interdire cette communication, le bouchon et le manchon étant prévus pour être tronçonnés simultanément de façon à obturer séparément le sas et ladite gaine au moyen de chacun des fonds du bouchon.1. 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 comprising a central recess establishing a sealed communication vis-à-vis the environment between the airlock and said sheath, and a double bottom plug disposed in the recess to prevent this communication, the plug and the sleeve being provided for being cut simultaneously so as to close the airlock separately and said sheath by means of each of the bottoms of the plug. 2. Dispositif selon la revendication 1, caractérisé en ce que le manchon comprend une saignée externe perpendiculaire à son axe et en ce que le bouchon comprend une saignée interne perpendiculaire à son axe et disposée entre ses deux fonds, lesdites saignées étant sensiblement de même largeur et disposées normalement dans le même plan radial, la surface externe du bouchon étant susceptible d'être rendue solidaire de façon étanche de la surface interne de l'évidement formé dans le bouchon sur tout le pourtour de cette surface et sur une distance, mesurée parallèlement à l'axe du manchon, dépassant de part et d'autre lesdites saignées.2. Device according to claim 1, characterized in that the sleeve comprises an external groove perpendicular to its axis and in that the plug comprises an internal groove perpendicular to its axis and disposed between its two bottoms, said grooves being substantially the same width and normally arranged 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 in parallel to the axis of the sleeve, projecting on both sides of said grooves. 3. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que chacun des fonds du bouchon comporte un moyen de préhension disposé du côté opposé à la gaine lorsque le bouchon est en place dans le manchon.3. Device according to any one of the preceding claims, characterized in that 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. 4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le manchon est susceptible d'être relié de façon étanche à la gaine par l'une de ses extrémités, et en ce qu'il comporte à son autre extrémité une collerette externe dans laquelle est ménagée une gorge recevant un joint d'étanchéité annulaire susceptible de venir engager de façon étanche la paroi interne du sas.4. Device according to any one of the preceding claims, characterized in that the sleeve is capable of being connected in leaktight manner to the sheath by one of its ends, and in that it comprises at its other end a external flange in which is formed a groove receiving an annular seal capable of sealingly engaging the internal wall of the airlock. 5. Dispositif selon la revendication 4, caractérisé en ce que le manchon comporte également un bandeau externe de même diamètre que la collerette et placé à une certaine distance de celle-ci, le bandeau étant susceptible de venir en appui contre un moyen d'encliquetage associé au sas.5. Device according to claim 4, characterized in that the sleeve also comprises an external strip of the same diameter as the collar and placed at a certain distance therefrom, the strip being capable of coming to bear against a latching means associated with the airlock. 6. Dispositif selon la revendication 5, prise en combinaison avec la revendication 2, caractérisé en ce que la saignée formée sur le manchon est disposée entre le bandeau et l'extrémité du manchon susceptible d'être reliée à la gaine.6. Device according to claim 5, taken in combination with claim 2, characterized in that the groove formed on the sleeve is disposed between the strip and the end of the sleeve capable of being connected to the sheath. 7. Procédé de mise en oeuvre du dispositif selon l'une quelconque des revendications précédentes, pour transférer dans une gaine étanche des produits nocifs contenus dans une cellule, au travers d'un sas solidaire de la cloison de la cellule, caractérisé en ce qu'il comprend les étapes successives suivantes : - on retire vers l'intérieur de la cellule l'ensemble formé par l'assemblage étanche des parties supérieures d'un premier manchon (1) et d'un premier bouchon (8) obturant le sas (12) et on introduit simultanément l'extrémité d'un second manchon opposé à la gaine, ledit manchon étant obturé par un second bouchon (8) et étant solidaire d'une gaine (2), jusqu'à ce que le bandeau (6) se trouve à l'intérieur du sas (12), où il est maintenu par un moyen d'encliquetage (14), - on achève de retirer l'ensemble obturant le sas (12) et on l'écarte latéralement afin de dégager l'orifice de ce dernier, débouchant dans la cellule, - on retire le second bouchon (8) du second manchon (1) vers l'intérieur de la cellule et on l'écarte latéralement de façon à dégager l'orifice du sas (12) débouchant dans la cellule, - on introduit dans la gaine (2) solidaire du second manchon (1) les produits nocifs à transférer contenus dans la cellule, - on obture le second manchon (1) au moyen du second bouchon (8), en amenant la saignée interne (9) de ce dernier dans le même plan radial que la saignée externe (7) du second manchon (1), - on solidarise de façon étanche le second bouchon (8) du second manchon (1), - on tronçonne l'ensemble constitué par le second manchon (1) et par le second bouchon (8) selon un plan radial passant par les saignées (7, 9). 7. A method of using the device according to any one of the preceding claims, for transferring harmful products contained in a cell into a sealed sheath, through an airlock secured to the partition of the cell, characterized in that '' it includes the following successive stages: - The assembly formed by the tight assembly of the upper parts of a first sleeve (1) and a first plug (8) closing the airlock (12) is removed towards the inside of the cell and simultaneously the end of a second sleeve opposite the sheath, said sleeve being closed by a second plug (8) and being integral with a sheath (2), until the strip (6) is inside the airlock (12), where it is held by a latching means (14), - the assembly closing off the airlock (12) is completed and it is moved aside laterally in order to clear the orifice of the latter, opening into the cell, - the second plug (8) is removed from the second sleeve (1) towards the interior of the cell and it is moved aside laterally so as to release the orifice of the airlock (12) opening into the cell, the harmful products to be transferred contained in the cell are introduced into the sheath (2) integral with the second sleeve (1), the second sleeve (1) is closed off by means of the second plug (8), by bringing the internal groove (9) of the latter in the same radial plane as the external groove (7) of the second sleeve (1), - the second plug (8) of the second sleeve (1) is tightly secured, - We cut the assembly consisting of the second sleeve (1) and the second plug (8) in a radial plane passing through the grooves (7, 9). 8. Procédé selon la revendication 7, caractérisé en ce qu'on solidarise de façon étanche le second bouchon (8) du second manchon (1) en réalisant à chaud un assemblage par brasure des surfaces en contact du bouchon et du manchon, ces surfaces ayant été préalablement revêtues d'une couche d'alliage de brasure.8. Method according to claim 7, characterized in that the second plug (8) of the second sleeve (1) is joined in a leaktight manner by performing hot assembly by brazing of the surfaces in contact with the plug and the sleeve, these surfaces having been previously coated with a layer of brazing alloy. 9. Procédé selon la revendication 7, caractérisé en ce qu'on solidarise de façon étanche le second bouchon (8) du second manchon (1) en rétreignant le manchon sur le bouchon par magnéto-formage.9. Method according to claim 7, characterized in that the second plug (8) of the second sleeve (1) is tightly joined by tightening the sleeve on the plug by magneto-forming. 10. Procédé selon la revendication 7, caractérisé en ce qu'on solidarise de façon étanche le second bouchon (8) du second manchon (1) en réalisant une soudure par ultra-sons.10. Method according to claim 7, characterized in that the second plug (8) of the second sleeve (1) is joined in a sealed manner by carrying out ultrasonic welding. 11. Procédé selon la revendication 7, caractérisé en ce qu'on solidarise de façon étanche le second bouchon (8) du second manchon (1) en réalisant un collage à chaud entre les deux surfaces en contact du bouchon et du manchon, ces surfaces ayant été préalablement revêtues d'une couche adhésive.11. Method according to claim 7, characterized in that the second plug (8) of the second sleeve (1) is joined in a leaktight manner by making a hot bonding between the two surfaces in contact with the plug and the sleeve, these surfaces having been previously coated with an adhesive layer.
EP79400583A 1978-08-25 1979-08-21 Device and method for the transfer and packaging of noxious agents in a sealed container Expired EP0009424B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7824625A FR2434464A1 (en) 1978-08-25 1978-08-25 DEVICE AND METHOD FOR TRANSFERRING AND PACKAGING IN A WATERPROOF SHEATH OF HARMFUL PRODUCTS
FR7824625 1978-09-25

Publications (2)

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EP0009424A1 true EP0009424A1 (en) 1980-04-02
EP0009424B1 EP0009424B1 (en) 1982-12-01

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EP79400583A Expired EP0009424B1 (en) 1978-08-25 1979-08-21 Device and method for the transfer and packaging of noxious agents in a sealed container

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US (1) US4281691A (en)
EP (1) EP0009424B1 (en)
JP (1) JPS5531994A (en)
DE (1) DE2964145D1 (en)
FR (1) FR2434464A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080006A1 (en) * 1981-03-27 1983-06-01 Communaute Europeenne De L'energie Atomique (Euratom) Appliance permitting the welding of nuclear-fission rod plugs
GB2116900A (en) * 1982-02-18 1983-10-05 Nat Nuclear Corp Ltd Dry storage of irradiated nuclear fuel
EP0151336A2 (en) * 1983-09-28 1985-08-14 Hewlett-Packard Company System for integrated circuit processing
FR2569042A1 (en) * 1984-06-18 1986-02-14 British Nuclear Fuels Plc METHOD FOR TRANSFERRING RADIOACTIVE MATERIALS FROM AN OUTDOOR ENCLOSURE

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 (en) * 1983-07-08 1986-05-15 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH, 3000 Hannover Method and device for filling a metal container with a glass melt containing highly radioactive fission products
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
US4616683A (en) * 1983-09-28 1986-10-14 Hewlett-Packard Company Particle-free dockable interface for integrated circuit processing
FR2560710B1 (en) * 1984-03-02 1986-11-07 Sgn Soc Gen Tech Nouvelle METHOD FOR TRANSFERRING OBJECT WITHOUT CONTAINMENT BREAK
DE3440277C1 (en) * 1984-11-03 1986-05-22 Siempelkamp Gießerei GmbH & Co, 4150 Krefeld Process for introducing radioactive waste into a melting furnace and device for carrying out the process
DE3814938A1 (en) * 1988-05-03 1989-11-16 Wiederaufarbeitung Von Kernbre DOCKING DEVICE FOR CONNECTING A TRANSPORT AND / OR STORAGE CONTAINER TO A RADIOACTIVELY LOADED WORK SPACE
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 (en) * 1964-03-12 1966-02-11 Snam Spa Device allowing the transfer to the exterior of organs or apparatus out of vessels operating under pressure or containing contaminated media
FR2315831A7 (en) * 1975-06-28 1977-01-21 Kernforschung Gmbh Ges Fuer Lock chamber assembly - for introducing articles into a radioactive environment, uses sleeve type containers in a seal ring magazine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1395856A (en) * 1964-03-06 1965-04-16 Electricite De France Nuclear reactor loading and unloading machine
FR1584761A (en) * 1968-06-05 1970-01-02
DE2637859C2 (en) * 1976-08-23 1985-01-31 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Device for setting radioactive waste in concrete in waste drums

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1428381A (en) * 1964-03-12 1966-02-11 Snam Spa Device allowing the transfer to the exterior of organs or apparatus out of vessels operating under pressure or containing contaminated media
FR2315831A7 (en) * 1975-06-28 1977-01-21 Kernforschung Gmbh Ges Fuer Lock chamber assembly - for introducing articles into a radioactive environment, uses sleeve type containers in a seal ring magazine

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 (en) * 1981-03-27 1983-06-01 Communaute Europeenne De L'energie Atomique (Euratom) Appliance permitting the welding of nuclear-fission rod plugs
GB2116900A (en) * 1982-02-18 1983-10-05 Nat Nuclear Corp Ltd Dry storage of irradiated nuclear fuel
EP0151336A2 (en) * 1983-09-28 1985-08-14 Hewlett-Packard Company System for integrated circuit processing
EP0151336A3 (en) * 1983-09-28 1988-04-27 Hewlett-Packard Company System for integrated circuit processing
FR2569042A1 (en) * 1984-06-18 1986-02-14 British Nuclear Fuels Plc METHOD FOR TRANSFERRING RADIOACTIVE MATERIALS FROM AN OUTDOOR ENCLOSURE

Also Published As

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

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