EP1886322B1 - System for cloggingly separating two aparatusses each having a chamber linked to that of the other one - Google Patents

System for cloggingly separating two aparatusses each having a chamber linked to that of the other one Download PDF

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Publication number
EP1886322B1
EP1886322B1 EP06794467A EP06794467A EP1886322B1 EP 1886322 B1 EP1886322 B1 EP 1886322B1 EP 06794467 A EP06794467 A EP 06794467A EP 06794467 A EP06794467 A EP 06794467A EP 1886322 B1 EP1886322 B1 EP 1886322B1
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EP
European Patent Office
Prior art keywords
flange
slot
female
confinement
separation system
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.)
Not-in-force
Application number
EP06794467A
Other languages
German (de)
French (fr)
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EP1886322A2 (en
Inventor
Raphaël CLATOT
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Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Publication of EP1886322A2 publication Critical patent/EP1886322A2/en
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Publication of EP1886322B1 publication Critical patent/EP1886322B1/en
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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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53678—Compressing parts together face to face
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53683—Spreading parts apart or separating them from face to face engagement
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/5377—Riveter
    • Y10T29/53774—Single header
    • Y10T29/53778—Pipe joiner
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53787—Binding or covering
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53983—Work-supported apparatus

Definitions

  • the invention relates to the management and handling of equipment and objects in a confined environment, particularly in the field of nuclear installations. It is particularly related to the problem concerning the maintenance of equipment in confined and controlled installations, in particular to the separation of two enclosures placed in sealed communication and to be separated, the interior of each of which must remain confined. .
  • a first technique consists in using a bag of flexible and waterproof material, such as a vinyl bag, around the junction plane of the two equipment to be separated, in a sealed manner. It is then possible to mechanically separate the two elements from each other, to make two sealed chambers at each end of the flexible bag, and to cut the bag in half between the chambers thus formed to release the two equipment, a part from the bag now closed each room.
  • This method is inexpensive, but difficult to achieve on large flanges.
  • the use of bolted flanges prohibits the use of double grooves necessary for fixing the flexible bag.
  • the implementation of this solution is complicated.
  • the implementation with nuclear ventilation in operation is made difficult because of the depression.
  • it has the advantage of allowing the realization without rupture of confinement, with a static seal.
  • Another solution is to use a double waterproof transfer door. Indeed, the two equipment to be placed in communication each have an identical sealed door. These two devices are then put against each other at the level of the two watertight doors that are solidarize one to the other. All of these two doors are then removed from the two opening frames, thus releasing the passage.
  • This process is relatively simple and pollution-proof, but very expensive. In addition, it is not designed for use under vacuum. It is linked to the use of a glove box or a remote manipulator that allows both doors to be opened simultaneously from the inside of the equipment.
  • the object of the invention is therefore to propose a system allowing two equipment comprising enclosures placed, in sealed communication with respect to the vacuum, to be separated easily, safely and tightly, avoiding the disadvantages described with respect to the two methods. above described.
  • the main object of the invention is a separation system of two equipment each having an enclosure to be connected in operation with the enclosure of the other equipment, this connection in operation requiring a vacuum seal and of which it is desired to control the dispersion of pollution towards the outside of the equipment, during maintenance operations.
  • the two devices can be separated from each other, the two enclosures being hermetically closed each independently by a closure plate.
  • the means for closing the slot consist of a longitudinal cover.
  • a seal is used between the male flange and the female flange, in a different plane and parallel to that defined by the slot and the closing plane of the closure plates. This amounts to not having a seal on, that is to say in the same plane as, the mechanical connection between the two closure plates and makes possible a vacuum tight seal.
  • each of them has at least two strips each bearing on a strip of the other plate.
  • a handle on one of the closure plates preferably the one that is the larger of the two.
  • a double groove is provided on the outer part of the containment flange for fixing a sealing bag allowing disassembly and insertion of closure plates, without breaching confinement
  • the figure 1 shows, exploded, that is to say the parts being separated from each other, the system according to the invention.
  • the latter consists mainly of a containment flange 10 and two closure plates 20A and 20B, respectively female closure plate 20A and male closure plate 20B.
  • the female closure plate 20A is shown in the closed position, that is to say it is introduced into the confinement flange 10, thanks to a slot 12 located in the upper part of the confinement flange 10.
  • the latter is shown and supplemented with a cover 11 intended to close the slot 12, when the closure plates 20A and 20B are not to be introduced or removed from the containment flange 10.
  • a double groove 15 in the upper part of the containment flange 10.
  • the figure 2 represents the entire containment flange 10 of the figure 1 , which is therefore composed of the female flange 10A in which is fixed the male flange 10B. In fact, the latter is pressed so as to fit into the female flange 10A.
  • the terms “male” and “female” are due to the fact that the female flange 10A and wider than the male flange 10B and the latter is pressed against the female flange 10A, fitting slightly inside thereof between Others by a frustoconical surface 17.
  • the durability of the fixing is provided by fastening screws 14 placed at the periphery of the assembly and passing through the two female flanges 10A and 10B male.
  • the width of this assembly can be of the order of 60 to 70 mm.
  • this confinement flange 10 remains attached to the station on the installation, during dismantling of the equipment. In fact, it is part of the installation.
  • female closure plates 20A and 20B also known as "guillotines" female and male. These elements are represented respectively in Figures 3A and 3B , mounted on their respective female flange 10A and male 10B. As shown in figure 3A , the female closure plate 20A is shown introduced into the slot 12 of the female flange 10A and protrudes from the latter by a handle 22 which serves to manipulate all the female closure plates 20A and 20B male.
  • the male closure plate 20B is shown mounted in its male flange 10B.
  • a seal 21 is placed on the male flange 10B, so that when this assembly is applied against the female assembly shown in FIG. figure 3A , the space between the female closure plates 20A and 20B male is sealed. It is noted in this regard that this space is very narrow and defines an area to be decontaminated 24, when the system will be separated. This seal 21 allows the vacuum to this space.
  • the male flange 10B has a standard interface with respect to the vacuum type ISO F.
  • each of the closure plates 20A and 20B located opposite the other closure plate there are several strips 23, namely at least two, horizontal, each placed so as to bear with a strip of the opposite plate for the purpose of facilitating the insertion and removal of all of the two closure plates by transmitting the effort for the setting in motion of the assembly relative to the confinement flange.
  • these strips 23 serve to stiffen each of the closure plates.
  • These strips 23 can be liked to facilitate the simultaneous insertion of the two closure plates in the slot 12 of the confinement flange 10.
  • a first seal 26 is placed between the male flange 10B and the female flange 10A, at the end of the frustoconical surfaces 17 through which these female flanges 10A and 10B male are supported on one another. Note that the vertical plane in which this seal is located is different from the insertion plane of the two closure plates 20A and 20B. This makes it possible to obtain a tight vacuum seal.
  • a cover seal 27 is also placed between the bearing surface of the cover 11 and the upper surface of the female flange 10A on both sides of the slot 12.
  • a pollution seal 28 is placed on either side of the upper part of the female closure plate 20A to isolate the opening of the slot 12.
  • this plate seal 21 and the seal 26 placed between and at the end of the two frustoconical surfaces 17 of the female flanges 10A and 10B male.
  • the containment flange 10 is sealingly attached between two equipment 30A and 30B connected via it.
  • the first step is to remove the cover 11 held by fixing screws on the female flange. Given that there is a vacuum inside the installation, it is held in place. It can possibly be secured by butterfly screws.
  • the second operation is to bring all of the two closure plates 20A and 20B constituting a guillotine, via a vinyl bag 31 fixed on the double groove marked 15 on the figure 2 as shown in Figure 6B .
  • the third phase is illustrated by the Figure 6C and consists in inserting the two closure plates 20A and 20B into the slot 12 of the containment flange 10. This operation is done through the bag 31 by pushing the cover laterally, the handle marked 22 on the figure 3A allowing to correctly position this assembly at the bottom of the housing constituted by the confinement flange 10.
  • the advantage of the proposed solution is to allow to simply insert, from the outside, closing plates constituting guillotines, to limit the spread of pollution, during the disassembly.
  • the steps to follow such an operation being a local decontamination of the zone defined in particular by the Figures 3A and 3B between the two closure plates 20A and 20B, and the installation of a cover for a final seal.
  • This set is a passive mechanics, requiring no maintenance, excluding the monitoring of the seal 26 used to maintain the vacuum.
  • the overall size is limited.
  • the dimensions of the vinyl bag to be implemented are relatively small and the handling thereof is easy and accessible.
  • the confinement flange thus makes it possible to ensure that the passage section in the event of a breach of confinement is reduced to the passage section of the closing plates, that is to say to that of the slot 12 of the containment flange 10. This makes it possible to better manage the dimensions of the ventilation of the nuclear installation, dimensioned, among others, according to the necessary safety flows and proportional to the passage section in accidental mode.
  • the containment flanges are useful in the case of a vacuum process where we want to maintain a confinement, during the dismantling of a part of the equipment, after a return to atmospheric pressure, we think in particular of radiological confinement , cleanliness and chemical.
  • This system is intended to apply in the first place to an installation using a high intensity laser, in which the experimental chamber is placed under vacuum, during a firing and radiological confinement function.
  • the containment flanges can then be used for disassembly of insertion systems, during the establishment of diagnostics in a transient phase or a phase of radiological risk-taking where one would like to dismantle equipment under confinement, without using expensive systems, as set forth in the paragraphs of the prior art.
  • this system allows disassembly of equipment whose maintenance is occasional and does not justify the presence of a valve or a dual-door transfer system sealed and whose containment is difficult.
  • the flanges can be used for the dismantling of vacuum portholes, which one would like to control the dust during intervention.
  • it is the external environment that is considered as the polluting environment.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Manipulator (AREA)
  • Physical Vapour Deposition (AREA)
  • Pipe Accessories (AREA)

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

L'invention concerne la gestion et la manutention de matériel et d'objets en ambiance confinée, notamment dans le domaine des installations nucléaires. Elle est notamment liée à la problématique relative à la maintenance d'équipements dans des installations confinées et contrôlées, notamment à la séparation de deux enceintes mises en communication de façon étanche et devant être séparées, l'intérieur de chacune d'elle devant rester confinée.The invention relates to the management and handling of equipment and objects in a confined environment, particularly in the field of nuclear installations. It is particularly related to the problem concerning the maintenance of equipment in confined and controlled installations, in particular to the separation of two enclosures placed in sealed communication and to be separated, the interior of each of which must remain confined. .

ART ANTERIEUR ET PROBLEME POSEPRIOR ART AND PROBLEM POSE

Dans des installations de traitement et de matériaux contaminés, dans le domaine nucléaire, il est courant d'utiliser deux équipements constitués, entre autres, chacun d'une enceinte et qui sont reliés en fonctionnement de façon étanche au vide. Dans le cadre de la maintenance de ces équipements, il est courant de devoir les séparer l'un de l'autre. Dans ce but, on souhaite maîtriser la dispersion de pollution issue des enceintes, vers le reste de l'installation. Plusieurs solutions de référence sont connues et décrites dans des ouvrages de normes des centres nucléaires, notamment sous la dénomination "enceintes de confinement et éléments de transfert - chapitre IV.2", ainsi que la norme NF ISO 1 933-3, "composant et enceinte de confinement".In contaminated treatment plants and materials, in the nuclear field, it is common practice to use two pieces of equipment consisting of, among others, each of an enclosure and which are operationally connected in a vacuum-tight manner. As part of the maintenance of these equipment, it is common to have to separate them from one another. For this purpose, it is desired to control the dispersion of pollution from the speakers to the rest of the installation. Several reference solutions are known and described in standards books of nuclear centers, in particular under the name "containment enclosures and transfer elements - chapter IV.2", as well as standard NF ISO 1 933-3, "component and containment enclosure".

Une première technique consiste à utiliser un sac en matière souple et étanche, telle qu'un sac vinyle, autour du plan de jonction des deux équipements à séparer, ceci de façon étanche. Il est alors possible de séparer mécaniquement l'un de l'autre les deux éléments, de réaliser deux chambres étanches à chaque extrémité du sac souple, et de couper le sac en deux entre les chambres ainsi formées pour libérer les deux équipements, une partie du sac maintenant fermée chaque chambre. Ce procédé est peu coûteux, mais difficile à réaliser sur des brides de grande dimension. De plus, l'utilisation des brides boulonnées interdit l'utilisation de double gorge nécessaires à la fixation du sac souple. Dans le cas des équipements lourds, posés sur des pieds, la mise en oeuvre de cette solution est compliquée. D'autre part, dans le cas d'équipements de forts diamètres, la mise en oeuvre avec ventilation nucléaire en fonctionnement est rendue difficile en raison de la dépression. Toutefois, il présente l'avantage de permettre la réalisation sans rupture de confinement, avec une étanchéité statique.A first technique consists in using a bag of flexible and waterproof material, such as a vinyl bag, around the junction plane of the two equipment to be separated, in a sealed manner. It is then possible to mechanically separate the two elements from each other, to make two sealed chambers at each end of the flexible bag, and to cut the bag in half between the chambers thus formed to release the two equipment, a part from the bag now closed each room. This method is inexpensive, but difficult to achieve on large flanges. In addition, the use of bolted flanges prohibits the use of double grooves necessary for fixing the flexible bag. In the case of heavy equipment, placed on feet, the implementation of this solution is complicated. On the other hand, in the case of equipment of large diameters, the implementation with nuclear ventilation in operation is made difficult because of the depression. However, it has the advantage of allowing the realization without rupture of confinement, with a static seal.

Une autre solution consiste à utiliser une double porte de transfert étanche. En effet, les deux équipements devant être mis en communication possèdent chacun une porte étanche identique. Ces deux équipements sont alors mis l'un contre l'autre au niveau des deux portes étanches que l'on solidarisent l'une à l'autre. L'ensemble de ces deux portes est alors enlevé des deux cadres d'ouverture, libérant ainsi le passage. Ce procédé est relativement simple et étanche à la pollution, mais très coûteux. De plus, il n'est pas conçu pour une utilisation sous vide. Il est lié à l'utilisation d'une boîte à gants ou d'un télémanipulateur qui permet d'ouvrir simultanément les deux portes par l'intérieur de l'équipement.Another solution is to use a double waterproof transfer door. Indeed, the two equipment to be placed in communication each have an identical sealed door. These two devices are then put against each other at the level of the two watertight doors that are solidarize one to the other. All of these two doors are then removed from the two opening frames, thus releasing the passage. This process is relatively simple and pollution-proof, but very expensive. In addition, it is not designed for use under vacuum. It is linked to the use of a glove box or a remote manipulator that allows both doors to be opened simultaneously from the inside of the equipment.

Le but de l'invention est donc de proposer un système permettant à deux équipements comportant des enceintes placées, en communication étanche par rapport au vide, d'être séparés facilement, de façon sûre et étanche, en évitant les inconvénients décrits relativement aux deux méthodes ci-dessus décrites.The object of the invention is therefore to propose a system allowing two equipment comprising enclosures placed, in sealed communication with respect to the vacuum, to be separated easily, safely and tightly, avoiding the disadvantages described with respect to the two methods. above described.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

A cet effet, l'objet principal de l'invention est un système de séparation de deux équipements possédant chacun une enceinte devant être reliée, en fonctionnement, avec l'enceinte de l'autre équipement, cette liaison en fonctionnement nécessitant une étanchéité au vide et dont on souhaite maîtriser la dispersion de pollution vers l'extérieur des équipements, lors d'opérations de maintenance.For this purpose, the main object of the invention is a separation system of two equipment each having an enclosure to be connected in operation with the enclosure of the other equipment, this connection in operation requiring a vacuum seal and of which it is desired to control the dispersion of pollution towards the outside of the equipment, during maintenance operations.

Selon l'invention, le système comprend :

  • une bride de confinement placée entre et fixée aux deux enceintes, constituée d'une bride femelle et d'une bride mâle, plaquées et fixées temporairement l'une contre l'autre, la bride de confinement possédant une fente et des moyens pour boucher ladite fente ;
  • deux plaques de fermeture susceptible d'être introduites dans la fente et venir obturer de façon étanche les enceintes placées en regard de la bride.
According to the invention, the system comprises:
  • a containment flange placed between and attached to the two enclosures, consisting of a female flange and a male flange, pressed and temporarily fixed against each other, the flange of containment having a slot and means for plugging said slot;
  • two closure plates may be introduced into the slot and come sealingly close the speakers placed opposite the flange.

Ainsi, les deux équipements pourront être séparés l'un de l'autre, les deux enceintes étant fermées hermétiquement de façon indépendante chacune par une plaque de fermeture.Thus, the two devices can be separated from each other, the two enclosures being hermetically closed each independently by a closure plate.

Dans la réalisation préférentielle de l'invention, les moyens pour boucher la fente sont constitués d'un capot longitudinal.In the preferred embodiment of the invention, the means for closing the slot consist of a longitudinal cover.

Celui-ci est complété avantageusement d'un joint de capot.This is advantageously completed with a hood seal.

Dans la réalisation préférentielle de l'invention, un joint d'étanchéité est utilisé entre la bride mâle et la bride femelle, dans un plan différent et parallèle à celui défini par la fente et le plan de fermeture des plaques de fermeture. Ceci revient à ne pas avoir de joint à cheval sur, c'est-à-dire dans le même plan que, la liaison mécanique entre les deux plaques de fermeture et permet de rendre possible une étanchéité poussée au vide.In the preferred embodiment of the invention, a seal is used between the male flange and the female flange, in a different plane and parallel to that defined by the slot and the closing plane of the closure plates. This amounts to not having a seal on, that is to say in the same plane as, the mechanical connection between the two closure plates and makes possible a vacuum tight seal.

Dans le but de faciliter le maintien et l'invention des plaques de fermeture l'une contre l'autre, chacune d'elle possède au moins deux réglettes prenant appui chacune sur une réglette de l'autre plaque.In order to facilitate the maintenance and the invention of the closure plates against each other, each of them has at least two strips each bearing on a strip of the other plate.

De plus, il est préférable de disposer d'une poignée sur une des plaques de fermeture, de préférence celle qui est la plus grande des deux.In addition, it is preferable to have a handle on one of the closure plates, preferably the one that is the larger of the two.

Dans le but de parfaire l'étanchéité de l'ensemble des deux plaques, il est également prévu d'utiliser un joint de plaque placé entre les deux plaques, sur toute la périphérie de celles-ci.In order to complete the sealing of all of the two plates, it is also intended to use a plate joint placed between the two plates, over the entire periphery thereof.

Pour améliorer l'étanchéité à la pollution, il est également utile d'utiliser un joint de pollution autour de l'ouverture de la fente pour isoler cette dernière.To improve the pollution tightness, it is also useful to use a pollution seal around the opening of the slot to isolate the latter.

Enfin, une double gorge est prévue sur la partie extérieure de la bride de confinement pour la fixation d'un sac d'étanchéité permettant le démontage et l'introduction des plaques de fermeture, sans rupture de confinementFinally, a double groove is provided on the outer part of the containment flange for fixing a sealing bag allowing disassembly and insertion of closure plates, without breaching confinement

LISTE DES FIGURESLIST OF FIGURES

L'invention et ses différentes caractéristiques techniques seront mieux comprises à la lecture de la description suivante, accompagnée de plusieurs figures représentant respectivement :

  • figure 1, en vue cavalière éclatée, l'ensemble du système de séparation selon l'invention ;
  • figure 2, en vue cavalière, la bride de confinement du système selon l'invention ;
  • figures 3A et 3B, en vue cavalière, les deux plaques de fermeture utilisée dans le système selon l'invention ;
  • figure 4, en coupe partielle verticale, par rapport aux figures 1 et 2, le système selon l'invention ;
  • figure 5, en coupe partielle horizontale par rapport aux figures 1 et 2, le système selon l'invention ;
  • figures 6A à 6D, quatre phases de l'utilisation du système selon l'invention.
The invention and its various technical features will be better understood on reading the following description, accompanied by several figures respectively representing:
  • figure 1 , in an exploded view, the entire separation system according to the invention;
  • figure 2 , in a cavalier view, the confinement flange of the system according to the invention;
  • Figures 3A and 3B , in a cavalier view, the two closure plates used in the system according to the invention;
  • figure 4 , in partial vertical section, with respect to figures 1 and 2 the system according to the invention;
  • figure 5 , in partial horizontal section with respect to figures 1 and 2 the system according to the invention;
  • Figures 6A to 6D , four phases of the use of the system according to the invention.

DESCRIPTION DETAIILEE D'UNE REALISATION DE L'INVENTIONDETAILED DESCRIPTION OF AN EMBODIMENT OF THE INVENTION

La figure 1 montre, de façon éclatée, c'est-à-dire les pièces étant séparées les unes des autres, le système selon l'invention. Ce dernier est constitué principalement d'une bride de confinement 10 et de deux plaques de fermeture 20A et 20B, respectivement plaque de fermeture femelle 20A et plaque de fermeture mâle 20B. La plaque de fermeture femelle 20A est représentée en position de fermeture, c'est-à-dire qu'elle est introduite dans la bride de confinement 10, grâce à une fente 12 se trouvant dans la partie supérieure de la bride de confinement 10. Cette dernière est représentée et complétée d'un capot 11 destinée à fermer la fente 12, lorsque les plaques de fermeture 20A et 20B ne sont pas à être introduites ou retirées de la bride de confinement 10. Sur cette même figure est représentée une double gorge 15 pratiquée dans la partie supérieure de la bride de confinement 10. On notera que la représentation de cette figure 1 n'est pas conforme au fonctionnement du système selon l'invention, puisque cette figure 1 est de type éclatée.The figure 1 shows, exploded, that is to say the parts being separated from each other, the system according to the invention. The latter consists mainly of a containment flange 10 and two closure plates 20A and 20B, respectively female closure plate 20A and male closure plate 20B. The female closure plate 20A is shown in the closed position, that is to say it is introduced into the confinement flange 10, thanks to a slot 12 located in the upper part of the confinement flange 10. The latter is shown and supplemented with a cover 11 intended to close the slot 12, when the closure plates 20A and 20B are not to be introduced or removed from the containment flange 10. In this same figure is shown a double groove 15 in the upper part of the containment flange 10. It will be noted that the representation of this figure 1 does not comply with the functioning of the according to the invention, since this figure 1 is of exploded type.

La figure 2 représente l'ensemble de la bride de confinement 10 de la figure 1, qui est donc composée de la bride femelle 10A dans laquelle est fixée la bride mâle 10B. En fait, cette dernière est plaquée de façon à s'emboîter dans la bride femelle 10A. Les termes "mâle" et "femelle" sont dus au fait que la bride femelle 10A et plus large que la bride mâle 10B et que cette dernière est plaquée contre la bride femelle 10A, en rentrant légèrement à l'intérieur de celui-ci entre autres par une surface tronconique 17. La pérennité de la fixation est assurée par des vis de fixation 14 placées à la périphérie de l'ensemble et traversant les deux brides femelle 10A et mâle 10B. On note, sur le côté de la bride femelle 10A, opposé à celui recevant la bride mâle 10B, la présence d'une partie en saille constituant une bride de jonction 16. Cette partie de la bride femelle 10A constitue une interface standard de vide normalisé de type ISO-F. Dans la réalisation prévue, la largeur de cet ensemble peut être de l'ordre de 60 à 70 mm.The figure 2 represents the entire containment flange 10 of the figure 1 , which is therefore composed of the female flange 10A in which is fixed the male flange 10B. In fact, the latter is pressed so as to fit into the female flange 10A. The terms "male" and "female" are due to the fact that the female flange 10A and wider than the male flange 10B and the latter is pressed against the female flange 10A, fitting slightly inside thereof between Others by a frustoconical surface 17. The durability of the fixing is provided by fastening screws 14 placed at the periphery of the assembly and passing through the two female flanges 10A and 10B male. It is noted on the side of the female flange 10A opposite to that receiving the male flange 10B, the presence of a portion of the flange constituting a junction flange 16. This portion of the female flange 10A is a standardized standard vacuum interface of type ISO-F. In the intended embodiment, the width of this assembly can be of the order of 60 to 70 mm.

L'ensemble de cette bride de confinement 10 reste fixé à poste sur l'installation, lors du démontage de l'équipement. En fait, elle fait partie de l'installation.The whole of this confinement flange 10 remains attached to the station on the installation, during dismantling of the equipment. In fact, it is part of the installation.

Deux éléments importants du système selon l'invention sont constitués par les plaques de fermeture femelle 20A et mâle 20B, appelées également "guillotines" femelle et mâle. Ces éléments sont représentés respectivement aux figures 3A et 3B, montés sur leur bride respective femelle 10A et mâle 10B. Comme le montre la figure 3A, la plaque de fermeture femelle 20A est représentée introduite dans la fente 12 de la bride femelle 10A et dépasse de cette dernière par une poignée 22 qui sert à manipuler l'ensemble des plaques de fermeture femelle 20A et mâle 20B.Two important elements of the system according to the invention are formed by the female closure plates 20A and 20B, also known as "guillotines" female and male. These elements are represented respectively in Figures 3A and 3B , mounted on their respective female flange 10A and male 10B. As shown in figure 3A , the female closure plate 20A is shown introduced into the slot 12 of the female flange 10A and protrudes from the latter by a handle 22 which serves to manipulate all the female closure plates 20A and 20B male.

Sur la figure 3B, la plaque de fermeture mâle 20B est représentée montée dans sa bride mâle 10B. Un joint d'étanchéité 21 est placé sur la bride mâle 10B, de façon à ce que, lorsque cet ensemble est appliqué contre l'ensemble femelle représenté sur la figure 3A, l'espace entre les plaques de fermeture femelle 20A et mâle 20B soit isolé de façon étanche. On note à ce sujet que cet espace est très étroit et délimite une zone à décontaminer 24, lorsque le système sera séparé. Ce joint d'étanchéité 21 permet la mise sous vide de cet espace. On note que, comme la bride femelle 10A, la bride mâle 10B possède une interface standard par rapport au vide de type ISO F.On the figure 3B , the male closure plate 20B is shown mounted in its male flange 10B. A seal 21 is placed on the male flange 10B, so that when this assembly is applied against the female assembly shown in FIG. figure 3A , the space between the female closure plates 20A and 20B male is sealed. It is noted in this regard that this space is very narrow and defines an area to be decontaminated 24, when the system will be separated. This seal 21 allows the vacuum to this space. It is noted that, like the female flange 10A, the male flange 10B has a standard interface with respect to the vacuum type ISO F.

Sur la face de chacune des plaques de fermeture 20A et 20B se trouvant en regard de l'autre plaque de fermeture, se trouvent plusieurs réglettes 23, à savoir au moins deux, horizontales, placées chacune de manière à venir en appui avec une réglette de la plaque opposée dans le but de faciliter l'insertion et le retrait de l'ensemble des deux plaques de fermeture en transmettant l'effort pour la mise en mouvement de l'ensemble par rapport à la bride de confinement. De plus, elles servent à la rigidification de chacune des plaques de fermeture. Ces réglettes 23 peuvent être aimentées pour faciliter l'insertion simultanée des deux plaques de fermeture dans la fente 12 de la bride de confinement 10.On the face of each of the closure plates 20A and 20B located opposite the other closure plate, there are several strips 23, namely at least two, horizontal, each placed so as to bear with a strip of the opposite plate for the purpose of facilitating the insertion and removal of all of the two closure plates by transmitting the effort for the setting in motion of the assembly relative to the confinement flange. In addition, they serve to stiffen each of the closure plates. These strips 23 can be liked to facilitate the simultaneous insertion of the two closure plates in the slot 12 of the confinement flange 10.

Sur la figure 4 montrant, en coupe partielle verticale, l'ensemble du système selon l'invention, on a fait figurer des joints qui contribuent à l'étanchéité de l'ensemble. Un premier joint d'étanchéité 26 est placé entre la bride mâle 10B et la bride femelle 10A, à l'extrémité des surfaces tronconiques 17 par l'intermédiaire desquelles ces brides femelle 10A et mâle 10B prennent appui l'une sur l'autre. On note que le plan vertical dans lequel se trouve ce joint d'étanchéité est différent du plan d'insertion des deux plaques de fermeture 20A et 20B. Ceci permet d'obtenir une étanchéité poussée au vide.On the figure 4 showing, in vertical partial section, the entire system according to the invention, there have been included seals that contribute to the sealing of the assembly. A first seal 26 is placed between the male flange 10B and the female flange 10A, at the end of the frustoconical surfaces 17 through which these female flanges 10A and 10B male are supported on one another. Note that the vertical plane in which this seal is located is different from the insertion plane of the two closure plates 20A and 20B. This makes it possible to obtain a tight vacuum seal.

Un joint de capot 27 est également placé entre la surface d'appui du capot 11 et la surface supérieure de la bride femelle 10A, des deux côtés de la fente 12.A cover seal 27 is also placed between the bearing surface of the cover 11 and the upper surface of the female flange 10A on both sides of the slot 12.

Un joint de pollution 28 est placé de part et d'autre de la partie supérieure de la plaque de fermeture femelle 20A pour isoler l'ouverture de la fente 12.A pollution seal 28 is placed on either side of the upper part of the female closure plate 20A to isolate the opening of the slot 12.

Enfin, le joint de plaque 21 a également été représenté.Finally, the plate seal 21 has also been shown.

Sur la figure 5 qui est une coupe partielle horizontale, figure également ce joint de plaque 21 et le joint d'étanchéité 26 placé entre et au bout des deux surfaces tronconiques 17 des brides femelle 10A et mâle 10B.On the figure 5 which is a partial horizontal section, also this plate seal 21 and the seal 26 placed between and at the end of the two frustoconical surfaces 17 of the female flanges 10A and 10B male.

En référence à la figure 6A, dans l'état passif du système selon l'invention, sur une installation, la bride de confinement 10 est fixé de façon étanche entre deux équipements 30A et 30B raccordés par l'intermédiaire de celle-ci.With reference to the Figure 6A , in the passive state of the system according to the invention, on a installation, the containment flange 10 is sealingly attached between two equipment 30A and 30B connected via it.

La première étape consiste à enlever le capot 11 maintenu par des vis de fixation sur la bride femelle. Compte tenu qu'il règne à l'intérieur de l'installation une dépression, celui-ci est maintenu en place. Il peut éventuellement y être sécurisé par des vis papillons.The first step is to remove the cover 11 held by fixing screws on the female flange. Given that there is a vacuum inside the installation, it is held in place. It can possibly be secured by butterfly screws.

La deuxième opération consiste à amener l'ensemble des deux plaques de fermeture 20A et 20B constituant une guillotine, par l'intermédiaire d'un sac vinyle 31 fixé sur la double gorge repéré 15 sur la figure 2, comme le montre la figure 6B.The second operation is to bring all of the two closure plates 20A and 20B constituting a guillotine, via a vinyl bag 31 fixed on the double groove marked 15 on the figure 2 as shown in Figure 6B .

La troisième phase est illustrée par la figure 6C et consiste à insérer les deux plaques de fermeture 20A et 20B dans la fente 12 de la bride de confinement 10. Cette opération se fait au travers du sac 31 en poussant latéralement le capot, la poignée repérée 22 sur la figure 3A permettant de positionner correctement cet ensemble au fond du logement constitué par la bride de confinement 10.The third phase is illustrated by the Figure 6C and consists in inserting the two closure plates 20A and 20B into the slot 12 of the containment flange 10. This operation is done through the bag 31 by pushing the cover laterally, the handle marked 22 on the figure 3A allowing to correctly position this assembly at the bottom of the housing constituted by the confinement flange 10.

En référence à la figure 6D, les vis de fixation 14 sont alors enlevées et les deux équipements 30A et 30B sont séparés.With reference to the Figure 6D the fixing screws 14 are then removed and the two devices 30A and 30B are separated.

Avantages de l'inventionAdvantages of the invention

L'intérêt de la solution proposée est de permettre d'insérer simplement, depuis l'extérieur, des plaques de fermeture constituant des guillotines, pour limiter la dissémination de pollution, lors du démontage. Les étapes devant suivre une telle opération étant une décontamination locale de la zone définie notamment par les figures 3A et 3B entre les deux plaques de fermeture 20A et 20B, et la pose d'un capot pour une étanchéité définitive.The advantage of the proposed solution is to allow to simply insert, from the outside, closing plates constituting guillotines, to limit the spread of pollution, during the disassembly. The steps to follow such an operation being a local decontamination of the zone defined in particular by the Figures 3A and 3B between the two closure plates 20A and 20B, and the installation of a cover for a final seal.

Cet ensemble constitue une mécanique passive, nécessitant aucune maintenance, hors le suivi du joint d'étanchéité 26 servant à maintenir le vide.This set is a passive mechanics, requiring no maintenance, excluding the monitoring of the seal 26 used to maintain the vacuum.

L'encombrement de l'ensemble est limité.The overall size is limited.

Dans le cadre de l'utilisation d'une ventilation nucléaire, les dimensions du sac vinyle à mettre en oeuvre sont relativement réduites et la manipulation de celui-ci est facile est accessible.In the context of the use of nuclear ventilation, the dimensions of the vinyl bag to be implemented are relatively small and the handling thereof is easy and accessible.

La bride de confinement permet donc d'assurer le fait que la section de passage en cas de rupture de confinement, est réduite à la section de passage des plaques de fermeture, c'est-à-dire à celle de la fente 12 de la bride de confinement 10. Ceci permet de mieux gérer les dimensionnements de la ventilation de l'installation nucléaire, dimensionnée, entre autres, en fonction des débits de sécurité nécessaires et proportionnels à la section de passage en mode accidentel.The confinement flange thus makes it possible to ensure that the passage section in the event of a breach of confinement is reduced to the passage section of the closing plates, that is to say to that of the slot 12 of the containment flange 10. This makes it possible to better manage the dimensions of the ventilation of the nuclear installation, dimensioned, among others, according to the necessary safety flows and proportional to the passage section in accidental mode.

Le principe d'une telle guillotine est déjà utilisé dans des milieux industriels dont la classe de propreté est contrôlée. On pense notamment aux installations relatives à l'industrie optique. Dans ces applications, les plaques servant de guillotines sont alors insérées au niveau du plan de jonction entre les deux interfaces concernées. Au contraire, dans le cas présent, le plan d'insertion des deux plaques de fermeture est différent du plan de joint défini par la position du joint d'étanchéité 26 entre les deux brides de confinement mâle 10B et femelle 10A.The principle of such a guillotine is already used in industrial environments whose cleanliness class is controlled. One thinks in particular of installations relating to the optical industry. In these applications, the plates serving as guillotines are then inserted at the level of the junction plane between the two interfaces concerned. On the contrary, in the present case, the plane of insertion of the two plates of closure is different from the joint plane defined by the position of the seal 26 between the two male containment flanges 10B and female 10A.

Les brides de confinement sont utiles dans le cas d'un processus sous vide où l'on veut maintenir un confinement, lors du démontage d'une partie de l'équipement, après un retour à la pression atmosphérique, on pense notamment au confinement radiologique, de propreté et chimique.The containment flanges are useful in the case of a vacuum process where we want to maintain a confinement, during the dismantling of a part of the equipment, after a return to atmospheric pressure, we think in particular of radiological confinement , cleanliness and chemical.

Ce système est destiné à s'appliquer en premier lieu à une installation mettant en oeuvre un laser de forte intensité, dans laquelle la chambre d'expérience est placée sous vide, lors d'un tir et à une fonction de confinement radiologique. Les brides de confinement peuvent alors être utilisé pour le démontage des systèmes d'insertion, lors d'établissement de diagnostics dans une phase transitoire ou d'une phase de montée en risque radiologique où l'on voudrait démonter des équipements sous confinement, sans utiliser de systèmes coûteux, tels qu'exposés dans les paragraphes de l'art antérieur.This system is intended to apply in the first place to an installation using a high intensity laser, in which the experimental chamber is placed under vacuum, during a firing and radiological confinement function. The containment flanges can then be used for disassembly of insertion systems, during the establishment of diagnostics in a transient phase or a phase of radiological risk-taking where one would like to dismantle equipment under confinement, without using expensive systems, as set forth in the paragraphs of the prior art.

Dans le domaine du nucléaire, ce système permet de démonter les équipements dont la maintenance est occasionnelle et ne justifie pas la présence d'une vanne ou d'un système à double porte de transfert étanche et dont le maintien en confinement est difficile.In the nuclear field, this system allows disassembly of equipment whose maintenance is occasional and does not justify the presence of a valve or a dual-door transfer system sealed and whose containment is difficult.

Enfin, les brides peuvent être utilisées pour le démontage de hublots sous vide, dont on voudrait contrôler l'empoussièrement lors d'intervention. Dans ce cas, c'est l'environnement extérieur qui est considéré comme le milieu polluant.Finally, the flanges can be used for the dismantling of vacuum portholes, which one would like to control the dust during intervention. In this case, it is the external environment that is considered as the polluting environment.

Claims (8)

  1. System for separating two equipment items (30A, 30B) each having a chamber operatively linked to the chamber of the other equipment item, this operative link requiring vacuum-tightness and for which one wishes to control the dispersion of pollution toward the exterior of the equipment items, during maintenance operations,
    characterized in that it comprises:
    - a confinement flange (10) placed between and fixed to the two chambers of the equipment items (30A, 30B) and made up of a female flange (10A) and a male flange (10B), pressed and fixed temporarily to each other, the confinement flange having a slot (12) and means for blocking this slot,
    - two closure plates (20A, 20B) able to be placed against each other to be inserted from the outside into the slot (12) and to tightly cover the chambers placed opposite the confinement flange (10).
  2. Separation system according to claim 1, characterized in that the means for blocking the slot (12) are made up of a longitudinal cover (11).
  3. Separation system according to claim 2, characterized in that one uses a cover joint (27) placed between the cover (10) and the confinement flange (10).
  4. Separation system according to claim 1, characterized in that it comprises a sealing joint (26) placed between the female flange (10A) and the male flange (10B), in a different plane from that defined by the slot (12) and the insertion place of the closure plates (20A, 20B).
  5. Separation system according to claim 1, characterized in that it comprises a handle (22) placed on one of the two closure plates, in this case in the female closure plate (20A) which is larger than the male closure plate (20B).
  6. Separation system according to claim 5, characterized in that it comprises a double groove (15) on the exterior part of the female flange (20A) intended for fixing a sealing bag, such as a vinyl bag (31).
  7. System according to claim 1, characterized in that it comprises a plate joint (21) placed between the closure plates (20A, 20B) over the entire periphery of this.
  8. Separation system according to claim 1, characterized in that it comprises a pollution joint (28) around the slot (12) to insulate the opening thereof.
EP06794467A 2005-05-31 2006-05-29 System for cloggingly separating two aparatusses each having a chamber linked to that of the other one Not-in-force EP1886322B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0551438A FR2886447B1 (en) 2005-05-31 2005-05-31 SYSTEM FOR SEPARATING TWO EQUIPMENTS HAVING AN ENCLOSED SPEAKER CONNECTED TO THAT OF THE OTHER IN A WATERPROOFING MANNER
PCT/FR2006/050488 WO2007003825A2 (en) 2005-05-31 2006-05-29 System for separating two equipment items each having a chamber tightly linked to that of the other one

Publications (2)

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EP1886322A2 EP1886322A2 (en) 2008-02-13
EP1886322B1 true EP1886322B1 (en) 2013-03-13

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EP06794467A Not-in-force EP1886322B1 (en) 2005-05-31 2006-05-29 System for cloggingly separating two aparatusses each having a chamber linked to that of the other one

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US (1) US8091194B2 (en)
EP (1) EP1886322B1 (en)
JP (1) JP5153622B2 (en)
CN (1) CN101180686B (en)
FR (1) FR2886447B1 (en)
RU (1) RU2405995C2 (en)
WO (1) WO2007003825A2 (en)

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US20080199291A1 (en) 2008-08-21
FR2886447A1 (en) 2006-12-01
JP5153622B2 (en) 2013-02-27
US8091194B2 (en) 2012-01-10
JP2008545966A (en) 2008-12-18
CN101180686B (en) 2011-09-07
EP1886322A2 (en) 2008-02-13
RU2405995C2 (en) 2010-12-10
CN101180686A (en) 2008-05-14
WO2007003825A3 (en) 2007-03-22
RU2007149235A (en) 2009-07-20
WO2007003825A2 (en) 2007-01-11
FR2886447B1 (en) 2007-10-05

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