EP2959489A1 - Device for protecting against ionising radiation and containment enclosure provided with such a device - Google Patents

Device for protecting against ionising radiation and containment enclosure provided with such a device

Info

Publication number
EP2959489A1
EP2959489A1 EP14711546.3A EP14711546A EP2959489A1 EP 2959489 A1 EP2959489 A1 EP 2959489A1 EP 14711546 A EP14711546 A EP 14711546A EP 2959489 A1 EP2959489 A1 EP 2959489A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
wall
orifice
glove
open end
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
EP14711546.3A
Other languages
German (de)
French (fr)
Other versions
EP2959489B1 (en
Inventor
Fabrice Mazaudier
Guy LAMAZERE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Publication of EP2959489A1 publication Critical patent/EP2959489A1/en
Application granted granted Critical
Publication of EP2959489B1 publication Critical patent/EP2959489B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G21F7/04—Shielded glove-boxes
    • G21F7/047—Shielded passages; Closing or transferring means between glove-boxes
    • 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
    • G21F7/04—Shielded glove-boxes
    • G21F7/053—Glove mounting means
    • 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
    • G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
    • G21F3/02—Clothing
    • G21F3/035—Gloves

Definitions

  • the present invention relates to a protection device against ionizing radiation and to a containment enclosure equipped with such a device.
  • the technical field of the invention is that of the manufacture of protective articles against ionizing radiation.
  • At least one wall of the enclosure is pierced with an orifice allowing access to the interior of the enclosure, and / or a transfer of material through this wall.
  • Such a chamber may be kept in depression with respect to the medium or the building in which the chamber is placed, in order to prevent the migration of dangerous dust contained in the enclosure, outside the enclosure, by passage of these dusts (powders or materials that can be resuspended) through this orifice.
  • Such an orifice may be delimited by a (and equipped with) a structure, generally of annular shape, which passes through the wall of the enclosure and is integral with this wall.
  • Such a wall crossing structure is sometimes referred to as "glove ring” or "bag round”.
  • Such a glove may comprise a - and / or may be made from a - ionizing radiation attenuating material, for example an elastomeric material containing a metal filler.
  • This charge can be a metal powder or a powder of metal oxides.
  • the metals used for this purpose may be lead, tungsten, bismuth, or lanthanum, as described for example in patent FR2948672.
  • the patent FR2254409 describes a sleeve attached to a round of glove facing a manual access panel to a containment placed under pressure - unlike a glove box containing a radioactive material - which allows evacuate the space defined by the sleeve and the panel before the operator's hand enters the containment.
  • Patents FR2500355 and US3009164 disclose glove boxes adapted to the handling of radioactive materials, in which the gloves are in two parts: a sleeve attached to a round of glove and a glove attached to the sleeve removably and extending the sleeve.
  • ionizing radiation emitted by an object or material contained in the enclosure can pass through the glove and the orifice pierced in the wall of the enclosure.
  • the glove When the glove is not used and the enclosure is kept in depression, the glove can be deployed inside the enclosure under the effect of the depression thereof, which may hinder the treatment or the manipulation of object (s) or material (x) inside the enclosure by an operator using another glove integral with another wall penetration structure equipping the enclosure, and may also entail risks of tearing or damage of the gloves by rotary or heating devices arranged in the enclosure.
  • hoods comprising deformable wall elements
  • these wall elements interfere with the movements of the hand and arm of an operator whose hand and arm are engaged in the glove and through this hood.
  • An object of the invention is to propose a protection device against ionizing radiation, to be fixed to a wall-through structure, which is improved and / or which remedies, in part at least, the shortcomings or disadvantages of the known devices of FIG. protection against ionizing radiation.
  • An object of the invention is to propose a device for protection against ionizing radiation, to be fixed to a wall-through structure, which responds to at least one and preferably to several of the preceding and following objectives:
  • An object of the invention is to provide a containment enclosure equipped with such a protective device.
  • the invention applies in particular to a protection device against ionizing radiation passing through an orifice delimited by a wall-through structure, said device comprising a structure for attenuating ionizing radiation passing through the orifice, which is capable of covering or conceal the orifice, and comprising fastening means arranged to ensure a removable attachment of the ionizing radiation attenuation structure to the wall through structure.
  • the attenuation structure of the ionizing radiation consists essentially of a sleeve open at both ends, deformable under its own weight, and arranged to be fixed to the wall-through structure by said means of attachment, by an open first end of the sleeve.
  • the sleeve has a shape, dimensions, and a sufficiently low stiffness (ie sufficiently high flexibility) to be able to be turned over and partly extend inside the wall-through structure. , through the orifice delimited by the latter, and partly outside this structure, ie inside a containment enclosure whose wall would be equipped with this structure, so as to reinforce the protection of the arm of an operator engaged in the sleeve and in the orifice.
  • the sleeve may be secured to said fastening means, these fastening means being provided at a - or arranged in the vicinity of a - first open end of the sleeve.
  • the sleeve is sufficiently large and flexible to cover this first open end when the sleeve is suspended by said fixing means to the wall-through structure, so as to obscure the orifice defined by the wall-through structure when the sleeve is suspended to this structure by said fixing means.
  • the flexibility of the sleeve in particular its ability to deform under its own weight, may result from the flexibility and / or the thickness of the material constituting the sleeve.
  • the sleeve may have a thickness in a range of about 50 or 100 micrometers, up to about 500, 1000, or 2000 micrometers.
  • the sleeve may be made of an elastomeric material containing a metal filler, for example from a material described in the patent FR2948672, where appropriate according to a process described in this patent.
  • Said fixing means may be integrated into the sleeve, in particular in the form of a projection (such as a bead for example) extending along the first open end.
  • the dimensions of the sleeve are adapted to those of the wall penetration structure, and / or those of the orifice defined by this structure.
  • the shape of the sleeve may be straight - ie the sleeve may be cylindrical - or flared.
  • the sleeve may comprise at least one cylindrical portion which may be extended by at least one flared portion.
  • the ionizing radiation attenuating structure is a sleeve which comprises a first open end arranged to be secured to the wall-through structure, and a second open end arranged to (able to) be traversed by a glove secured to the wall penetration structure;
  • the sleeve has a deformation capacity (reversible) sufficient so that, when the sleeve is suspended by its first end to the wall-through structure, this first end extending along a plane slightly inclined relative to the vertical the second opening of the second open end is clamped, and a portion of the sleeve extending from the second end crashes, in particular under the effect of the weight of this portion of the sleeve; and the sleeve further has a shape and dimensions such that, in this suspension configuration of the sleeve to the wall-through structure, the sleeve extends facing the entire orifice delimited by the wall through structure, so as to cover or obscure the orifice and at
  • the sleeve may comprise a first handle portion extending in the vicinity of the first open end of the sleeve, and having a first density; and the sleeve may include a second handle portion extending adjacent the second open end of the sleeve, and having a second density greater than the first density, so as to facilitate curvature and crushing of the suspended portion of the sleeve; sleeve, under his own weight.
  • the sleeve may comprise weighting and / or reinforcement means extending in the vicinity of the second open end of the sleeve, for example a reverse formed in the sleeve at its second open end.
  • the length of the handle portion suspended from this structure is at least equal to the diameter of this orifice, so as to cover this orifice, and generally little greater than this diameter; in particular, the ratio of this length to this diameter can be in a range from about 1 to about 1.5, 2, or 4.
  • a containment enclosure whose wall comprises a wall penetration structure equipped with a glove, as well as a protection device as defined or described in the present application.
  • the stiffness of the sleeve may be of the same order of magnitude as the stiffness of a glove equipping the enclosure, in particular at least equal to that of a glove equipping the enclosure; in particular, the ratio of the stiffness of the sleeve to the stiffness of the glove may be in a range from 0.1 to approximately 10, in particular in a range from 0.5 to 2 or 3 approximately.
  • the sleeve in a material having a dYoung modulus (modulus of elasticity) in a range from about 10 6 Pascal (Pa) to about 10 8 Pa.
  • Figure 1 is a schematic longitudinal sectional view of a device for protection against ionizing radiation according to an exemplary embodiment.
  • Figure 2 is a schematic longitudinal sectional view of a device for protection against ionizing radiation according to another embodiment.
  • Figures 3 to 6 are schematic sectional views of a wall of a containment enclosure including a wall penetration structure equipped with a glove and a sleeve for protection against ionizing radiation, in several distinct configurations:
  • the glove and the sleeve are turned over and extend inside the wall-through structure and the containment enclosure; this corresponds to a phase of use of the glove and the sleeve by an operator, to treat or manipulate an object or material inside the enclosure;
  • the glove and the sleeve are stretched out and extend outside the wall-through structure and the containment enclosure; this corresponds to a phase of extraction of the glove and sleeve by an operator, outside the enclosure;
  • the glove is shortened, and the glove and the sleeve extend outside the wall-through structure and the containment enclosure;
  • the shortened glove extends inside the sleeve and the wall-through structure, while that the sleeve is suspended from the wall through structure, which corresponds to a phase where the glove is not used.
  • FIGS. 7 and 8 are respective schematic cross sectional views of the two end portions of the sleeve in its occultation configuration of the orifice illustrated in FIG. 6.
  • FIG. 9 is a schematic perspective view of a containment enclosure including a plurality of wall penetration structures each equipped with a device for protection against ionizing radiation.
  • the protective device 10 consists of a sleeve 1 1 made of a polymeric material, of elastomer type, loaded with metal particles to attenuate the ionizing radiation passing through the wall or membrane forming this sleeve.
  • the sleeve 11 extends along an axis 12 and is open at both ends 13, 14.
  • the thickness 15 of the membrane forming this sleeve may be of the order of 100 ⁇ to 2000 ⁇ for example.
  • the sleeve 11 has, on its inner face 17 and near its first open end 14, a projection (bead for example) 16 annular, of rounded section, extending along the contour of the opening 14, at a distance of this, and provided to engage in an annular groove formed on a wall through structure, as shown in Figures 3 to 6, to secure the sleeve to this structure.
  • the protection device 10 illustrated in FIG. 1 is of cylindrical shape, of axis 12, for example of circular section, in particular for be mounted on a wall-shaped annular (or tubular) structure of circular section.
  • the protective device 10 consists of a sleeve comprising a first cylindrical portion 1 12 extending from the first open end 14, a second cylindrical portion 110 extending from the second open end 13, and a third portion (central) 1 1 1 connecting the first and second portions 112, 110, of frustoconical shape or otherwise flared.
  • handle 1 10 to 1 12 may have a common axis 12 of symmetry of revolution.
  • the annular projection 16 extends at the first end of the sleeve and borders the first opening 14.
  • an end portion 11 of the portion 110 of the handle is folded (or even turned over) on this portion of the handle, forming an outer cuff having a density close to twice that of the portion 1 of handle 10, and increased stiffness.
  • This lapel can serve as ballast favoring the curvature of the sleeve 1 1 relative to the axis 12, and can serve as reinforcement or stiffener limiting the pinching of the opening 13 and the crushing of the portion 110 of the sleeve under the effect of the weight of this portion, as described in more detail in connection with FIGS. 6 and 8 in particular.
  • an enclosure 18 for confinement is delimited by plane walls 19, 20 which may be made of lead glass for example, and which are pierced with circular orifices 21 in each of which is engaged a structure 22 of the wall crossing.
  • the structure 22 comprises a tubular portion 23 whose axis 24 is orthogonal to the plane of the wall 19, the portion 23 extending through the orifice 21 pierced in the wall 19, of on both sides of this wall.
  • the structure 22 also comprises a first annular shoulder 25, of axis 24, extending inside the chamber 18, at the end of the portion 23 which extends into the chamber 18, and from of the outer surface of this portion 23, the shoulder 25 is integral.
  • the structure 22 further comprises an annular abutment 26, of axis
  • the structure 22 is thus placed in abutment against the inner face 190 of the wall 19 by the shoulder 25, and in abutment against the outer face 191 of the wall 19 by the abutment 26.
  • the part of the tubular portion 23 which extends outside the chamber 18, projecting from the outer face 191 and the stop 26, comprises a first annular groove 27 receiving an elastic ring 29 provided at the end free (open) of the sleeve 30 of a glove 31, to removably fasten the glove 31 to the structure 22 of the wall penetration.
  • the groove 28 for fixing the sleeve January 1 is set back from the groove 27 for fixing the glove 31, so that the sleeve January 1 can be secured to the structure 22 in one or other of the configurations illustrated in FIGS. Figures 3 to 6.
  • Fixing the device 10 to the structure 22 may not be sealed, and may be obtained by other means of fixing the sleeve, for example a strapping collar surrounding the sleeve near the first open end thereof .
  • the device 10 When, as illustrated in FIGS. 3 to 6, the device 10 is secured by the annular projection 16 integrated in the sleeve 1 1, the engagement of the annular projection 16 around the portion 23 of the structure 22, into the groove 28, can be obtained by widening the opening 14 of the sleeve 1 1, by deformation (elastic) of this sleeve and the projection 16.
  • the perimeter of the contour of the opening 14 of the sleeve January 1 is less than the perimeter of the contour of the portion 23, when the sleeve is "at rest", ie. when the sleeve is not elastically deformed to widen the opening 14.
  • the contour of the opening 14 of the sleeve 11 then matches the contour of the portion 23 of the structure 22, for example a circular contour illustrated in FIG. 7.
  • the device 10 and the sleeve 1 1 are thus arranged to deform reversibly and take in particular each of the following three configurations:
  • FIG. 3 a second extension configuration of the sleeve 1 1, "upside down” or “inverted”, which is illustrated in FIG. 3, in which the two open ends 13, 14 of the sleeve 11 extend from both sides other of the orifice 21 and the orifice 32 delimited by the structure 22 of the wall penetration; in this configuration, a portion of the sleeve January 1 reinforces the protection of the arm of an operator engaged in the glove 31 integral with the structure 22 of the wall penetration, this portion of the sleeve January 1 extending inside the the sleeve 30 of the glove 31, and inside the chamber 18; and an occultation configuration of the orifice 32 by the sleeve 11, which is illustrated in FIG. 6, in which the sleeve 1 1 is suspended from the wall-through structure by the fastening means 16 provided at its first end 14, and covers (closes) this orifice 32.
  • the length (marks 33 Figures 1 and 2) of the sleeve January 1, measured between its ends 13, 14 or between the fixing means 16 and the second end 13, is adapted to the height 34 (where appropriate the diameter) of the structure 22 and the orifice 32 that this structure delimits, so that the suspended portion of the sleeve 1 1 extends opposite the entire orifice.
  • the second opening of the second open end 13 is clamped, as illustrated in FIG. 8, and a portion of the sleeve January 1 extending from the second end 13 crushes, in particular under the effect of the weight of this portion of the sleeve.
  • the sleeve 11 and the device 10 allow the passage from one to the other of these three configurations does not require a significant effort of the operator, and the additional protection conferred by this sleeve does not cause significant inconvenience to the operator.
  • the sleeve 1 1 and the device 10 can shorten the glove 31 and accommodate it in the space delimited by the sleeve 11 and the structure 22, when the glove 31 is not used.
  • a knot 300 is formed in the stretched sleeve 30 of the glove 31, as illustrated schematically in FIG. 5, then the tension on the glove is released so that the glove is lodged. inside the sleeve 1 1 and the structure 22, as shown in FIG. 6.
  • the operator can grip the glove 31 by inserting his hand into the pinched opening 13 - but not closed - of the sleeve 1 1, to stretch the sleeve of the glove out of the sleeve 1 1, undo the knot 300 practiced on the sleeve 30 of the glove, then engage his hand and his arm in the glove 31, turn the glove 31 and the sleeve 11 inside the structure 22, to the working configuration illustrated in FIG.

Abstract

The invention relates to a device (10) for protecting against ionising radiation, which passes through an opening (32) defined by a wall penetration structure (22). The device comprises a structure for attenuating ionising radiation, which passes through the opening (32), and which is suitable for covering (or concealing) the opening (32), and comprises attachment means (16) arranged to removably attach of the structure for attenuating ionising radiation to the wall penetration structure (22). The structure for attenuating ionising radiation is a sleeve (11) which is open at the two ends thereof (13, 14), which is deformable under the weight thereof, and which is arranged to be attached to the wall penetration structure (22) by a first open end (14) of the sleeve (11) using the attachment means (16).

Description

Dispositif de protection contre les rayonnements ionisants et enceinte de confinement équipée d'un tel dispositif  Device for protection against ionizing radiation and containment enclosure equipped with such a device
DOMAINE TECHNIQUE  TECHNICAL AREA
La présente invention est relative à un dispositif de protection contre les rayonnements ionisants et à une enceinte de confinement équipée d'un tel dispositif.  The present invention relates to a protection device against ionizing radiation and to a containment enclosure equipped with such a device.
Le domaine technique de l'invention est celui de la fabrication d'articles de protection contre les rayonnements ionisants.  The technical field of the invention is that of the manufacture of protective articles against ionizing radiation.
ETAT DE LA TECHNIQUE II est connu de traiter ou manipuler des objets ou matériaux émettant des rayons ionisants - en particulier des rayons gamma (γ) - à l'intérieur d'une enceinte de confinement, en particulier à l'intérieur d'une boîte à gants.  STATE OF THE ART It is known to treat or manipulate objects or materials emitting ionizing rays - in particular gamma rays (γ) - inside a containment chamber, in particular inside a box. gloves.
A cet effet, au moins une paroi de l'enceinte est percée d'un orifice permettant un accès à l'intérieur de l'enceinte, et/ ou un transfert de matière au travers de cette paroi.  For this purpose, at least one wall of the enclosure is pierced with an orifice allowing access to the interior of the enclosure, and / or a transfer of material through this wall.
Une telle enceinte peut être maintenue en dépression par rapport au milieu ou au bâtiment dans lequel est placée l'enceinte, afin d'éviter la migration de poussières dangereuses contenues dans l'enceinte, à l'extérieur de celle-ci, par passage de ces poussières (poudres ou matières qui peuvent se remettre en suspension) au travers de cet orifice.  Such a chamber may be kept in depression with respect to the medium or the building in which the chamber is placed, in order to prevent the migration of dangerous dust contained in the enclosure, outside the enclosure, by passage of these dusts (powders or materials that can be resuspended) through this orifice.
Un tel orifice peut être délimité par une (et équipé d'une) structure, généralement de forme annulaire, qui traverse la paroi de l'enceinte et est solidaire de cette paroi.  Such an orifice may be delimited by a (and equipped with) a structure, generally of annular shape, which passes through the wall of the enclosure and is integral with this wall.
Une telle structure de traversée de paroi est parfois désignée « rond de gant » ou « rond de sac ».  Such a wall crossing structure is sometimes referred to as "glove ring" or "bag round".
Pour protéger la main, l'avant-bras, et le cas échéant le bras d'un opérateur, qui s'étendent au travers de cet orifice et à l'intérieur de l'enceinte, et pour assurer le confinement des poussières, il est connu de solidariser un gant à la structure de traversée de paroi, en engageant l'extrémité ouverte de la manche du gant autour d'une portion annulaire de cette structure, qui est saillante sur la face externe de la paroi de l'enceinte. To protect the hand, the forearm, and if necessary the arm of an operator, which extend through this orifice and inside the enclosure, and to ensure the containment of dust, it is known to secure a glove to the wall penetration structure, by engaging the open end of the sleeve of the glove around an annular portion this structure, which is projecting on the outer face of the wall of the enclosure.
Un tel gant peut comporter un - et/ ou peut être fabriqué à partir d'un - matériau atténuant les rayonnements ionisants, par exemple un matériau élastomère contenant une charge métallique. Cette charge peut être une poudre métallique ou une poudre d'oxydes métalliques. Les métaux utilisés à cet effet peuvent être le plomb, le tungstène, le bismuth, ou le lanthane, comme décrit par exemple dans le brevet FR2948672.  Such a glove may comprise a - and / or may be made from a - ionizing radiation attenuating material, for example an elastomeric material containing a metal filler. This charge can be a metal powder or a powder of metal oxides. The metals used for this purpose may be lead, tungsten, bismuth, or lanthanum, as described for example in patent FR2948672.
Le brevet FR2254409 décrit une manche fixée à un rond de gant en regard d'un panneau d'accès manuel à une enceinte de confinement mise en surpression - à l'inverse d'une boîte à gant renfermant un matériau radioactif -, qui permet de faire le vide dans l'espace délimité par la manche et le panneau avant que la main de l'opérateur ne pénètre dans l'enceinte de confinement.  The patent FR2254409 describes a sleeve attached to a round of glove facing a manual access panel to a containment placed under pressure - unlike a glove box containing a radioactive material - which allows evacuate the space defined by the sleeve and the panel before the operator's hand enters the containment.
Les brevets FR2500355 et US3009164 décrivent des boîtes à gant adaptées à la manipulation de matières radioactives, dans lesquelles les gants sont en deux parties : une manche fixée à un rond de gant et un gant fixé à la manche de façon amovible et prolongeant la manche.  Patents FR2500355 and US3009164 disclose glove boxes adapted to the handling of radioactive materials, in which the gloves are in two parts: a sleeve attached to a round of glove and a glove attached to the sleeve removably and extending the sleeve.
Le pouvoir radio atténuateur de ces gants est limité en raison notamment de la faible épaisseur de la membrane/ paroi du gant. Cette faible épaisseur permet cependant que le gant conserve une souplesse nécessaire aux manipulations effectuées par un opérateur dont la main et le bras sont engagés dans le gant.  The attenuating power of these gloves is limited because of the small thickness of the membrane / wall of the glove. This small thickness, however, allows the glove retains flexibility required for manipulations by an operator whose hand and arm are engaged in the glove.
II en résulte que des rayonnements ionisants émis par un objet ou matériau contenu dans l'enceinte, peuvent traverser le gant et l'orifice percé dans la paroi de l'enceinte.  As a result, ionizing radiation emitted by an object or material contained in the enclosure can pass through the glove and the orifice pierced in the wall of the enclosure.
Pour réduire ces rayonnements, il a été proposé d'équiper en outre la structure de traversée de paroi, d'un capot recouvrant l'orifice tout en permettant le passage de la main et du bras d'un opérateur au travers du capot et de l'orifice, afin que l'opérateur puisse enfiler le gant ou s'en séparer, sans désolidariser le capot de la structure de traversée de paroi. De tels capots comportant des éléments de paroi déformables atténuant les rayonnements, en forme de lanières ou de volets, sont décrits dans les brevets GB 1455863, FR2590198, FR2642221 , et FR2920334. To reduce this radiation, it has been proposed to further equip the wall through structure, a cover covering the orifice while allowing the passage of the hand and the arm of an operator through the hood and the orifice, so that the operator can thread the glove or separate, without separating the cover of the wall penetration structure. Such covers having deformable wall elements that attenuate radiation, in the form of strips or flaps, are described in patents GB 1455863, FR2590198, FR2642221 and FR2920334.
Lorsque le gant n'est pas employé et que l'enceinte est maintenue en dépression, le gant peut se déployer à l'intérieur de l'enceinte sous l'effet de la dépression de celle-ci, ce qui peut gêner le traitement ou la manipulation d'objet(s) ou matériau(x) à l'intérieur de l'enceinte par un opérateur utilisant un autre gant solidaire d'une autre structure de traversée de paroi équipant l'enceinte, et peut également entraîner des risques d'arrachement ou d'endommagement des gants par des appareils tournants ou chauffants disposés dans l'enceinte.  When the glove is not used and the enclosure is kept in depression, the glove can be deployed inside the enclosure under the effect of the depression thereof, which may hinder the treatment or the manipulation of object (s) or material (x) inside the enclosure by an operator using another glove integral with another wall penetration structure equipping the enclosure, and may also entail risks of tearing or damage of the gloves by rotary or heating devices arranged in the enclosure.
Pour éviter ce déploiement d'un gant inutilisé à l'intérieur de l'enceinte, il est proposé dans le brevet FR2642221 , de tirer le gant à l'extérieur de l'enceinte et d'ancrer le gant par les éléments de paroi déformables du capot. L'inconvénient est que, dans cette configuration, les éléments de paroi du capot s'étendent autour du gant, et que la partie centrale du capot ne joue alors plus pleinement son rôle d'atténuation des rayonnements.  To avoid this deployment of an unused glove inside the enclosure, it is proposed in patent FR2642221, to pull the glove outside the enclosure and to anchor the glove by the deformable wall elements hood. The disadvantage is that in this configuration, the hood wall elements extend around the glove, and that the central part of the hood then no longer fully plays its role of attenuation of radiation.
Par ailleurs, à chaque fois qu'un opérateur enlève sa main d'un gant, il est recommandé de faire un nœud avec la manche du gant inutilisé, ce nœud devant être défait pour engager à nouveau la main et le bras dans ce gant. La présence desdits capots gêne fortement ces opérations.  Moreover, each time an operator removes his hand from a glove, it is recommended to make a knot with the sleeve of the unused glove, this knot to be undone to engage the hand and arm again in this glove. The presence of said hoods strongly hinders these operations.
Un autre inconvénient des capots comportant des éléments de paroi déformables est que ces éléments de paroi gênent les mouvements de la main et du bras d'un opérateur dont la main et le bras sont engagés dans le gant et au travers de ce capot.  Another disadvantage of the hoods comprising deformable wall elements is that these wall elements interfere with the movements of the hand and arm of an operator whose hand and arm are engaged in the glove and through this hood.
Il existe également un besoin de renforcer la protection - contre les rayonnements ionisants - du bras - et des autres parties du corps - d'un opérateur engagé dans un gant fixé à une structure de traversée de paroi, sans diminuer la souplesse du gant. EXPOSÉ DE L'INVENTION There is also a need to enhance the protection - against ionizing radiation - of the arm - and other body parts - of an operator engaged in a glove attached to a wall-through structure, without diminishing the flexibility of the glove. STATEMENT OF THE INVENTION
Un objectif de l'invention est de proposer un dispositif de protection contre les rayonnements ionisants, à fixer à une structure de traversée de paroi, qui soit amélioré et/ ou qui remédie, en partie au moins, aux lacunes ou inconvénients des dispositif connus de protection contre les rayonnements ionisants.  An object of the invention is to propose a protection device against ionizing radiation, to be fixed to a wall-through structure, which is improved and / or which remedies, in part at least, the shortcomings or disadvantages of the known devices of FIG. protection against ionizing radiation.
Un objectif de l'invention est de proposer un dispositif de protection contre les rayonnements ionisants, à fixer à une structure de traversée de paroi, qui réponde à au moins un - et de préférence à plusieurs - des objectifs précédents et suivants :  An object of the invention is to propose a device for protection against ionizing radiation, to be fixed to a wall-through structure, which responds to at least one and preferably to several of the preceding and following objectives:
- renforcer la protection du corps d'un opérateur dont la main - et le cas échéant le bras - est (sont) engagée (engagés) dans un gant fixé à la structure de traversée de paroi ;  - Reinforce the protection of the body of an operator whose hand - and if necessary the arm - is (are) engaged (engaged) in a glove attached to the wall penetration structure;
- être facilement amovible/ séparable de la structure de traversée de paroi, notamment en vue de son remplacement par un autre dispositif de protection ;  - Be easily removable / separable from the wall through structure, especially for replacement by another protection device;
- limiter ou éviter une gêne pour un opérateur, et en particulier ne pas limiter l'amplitude de mouvement du bras d'un opérateur, de la main de l'opérateur, et des doigts de l'opérateur ;  limiting or avoiding annoyance for an operator, and in particular not limiting the range of motion of an operator's arm, of the operator's hand, and of the operator's fingers;
- ne pas devoir être désolidarisé de la structure de traversée de paroi lorsqu'un opérateur souhaite engager sa main et son bras dans un gant fixé à la structure de traversée de paroi, ou lorsqu'un opérateur souhaite dégager sa main et son bras d'un gant fixé à la structure de traversée de paroi ;  - not having to be detached from the wall-crossing structure when an operator wishes to engage his hand and his arm in a glove attached to the wall-climbing structure, or when an operator wishes to free his hand and his arm from a glove attached to the wall penetration structure;
- permettre d'éviter le déploiement d'un gant inutilisé, à l'intérieur d'une enceinte équipée de la structure de traversée de paroi, sans amoindrir la protection contre les rayonnements ionisants ;  - To avoid the deployment of an unused glove, inside a chamber equipped with the wall through structure, without reducing the protection against ionizing radiation;
- pouvoir équiper une structure existante de traversée de paroi (d'une enceinte de confinement existante).  - be able to equip an existing wall crossing structure (of an existing containment building).
Un objectif de l'invention est de proposer une enceinte de confinement équipée d'un tel dispositif de protection. L'invention s'applique en particulier à un dispositif de protection contre les rayonnements ionisants traversant un orifice délimité par une structure de traversée de paroi, ledit dispositif comportant une structure d'atténuation des rayonnements ionisants traversant l'orifice, qui est apte à recouvrir, voire à occulter l'orifice, et comportant des moyens de fixation agencés pour assurer une fixation amovible de la structure d'atténuation des rayonnements ionisants à la structure de traversée de paroi. An object of the invention is to provide a containment enclosure equipped with such a protective device. The invention applies in particular to a protection device against ionizing radiation passing through an orifice delimited by a wall-through structure, said device comprising a structure for attenuating ionizing radiation passing through the orifice, which is capable of covering or conceal the orifice, and comprising fastening means arranged to ensure a removable attachment of the ionizing radiation attenuation structure to the wall through structure.
Selon un aspect de l'invention, la structure d'atténuation des rayonnements ionisants est essentiellement constituée par une manche ouverte à ses deux extrémités, déformable sous son propre poids, et agencée pour être fixée à la structure de traversée de paroi par lesdits moyens de fixation, par une première extrémité ouverte de la manche.  According to one aspect of the invention, the attenuation structure of the ionizing radiation consists essentially of a sleeve open at both ends, deformable under its own weight, and arranged to be fixed to the wall-through structure by said means of attachment, by an open first end of the sleeve.
De préférence, la manche présente une forme, des dimensions, et une raideur suffisamment faible (c.à.d. une souplesse suffisamment élevée) pour pouvoir être retournée et s'étendre en partie à l'intérieur de la structure de traversée de paroi, au travers de l'orifice délimité par cette dernière, et pour partie à l'extérieur de cette structure, c.à.d. à l'intérieur d'un enceinte de confinement dont une paroi serait équipée de cette structure, de façon à renforcer la protection du bras d'un opérateur engagé dans la manche et dans l'orifice.  Preferably, the sleeve has a shape, dimensions, and a sufficiently low stiffness (ie sufficiently high flexibility) to be able to be turned over and partly extend inside the wall-through structure. , through the orifice delimited by the latter, and partly outside this structure, ie inside a containment enclosure whose wall would be equipped with this structure, so as to reinforce the protection of the arm of an operator engaged in the sleeve and in the orifice.
La manche peut être solidaire desdits moyens de fixation, ces moyens de fixation étant prévus à une - ou disposés au voisinage d'une - première extrémité ouverte de la manche.  The sleeve may be secured to said fastening means, these fastening means being provided at a - or arranged in the vicinity of a - first open end of the sleeve.
La manche est suffisamment grande et souple pour recouvrir cette première extrémité ouverte lorsque la manche est suspendue par lesdits moyens de fixation à la structure de traversée de paroi, de façon à occulter l'orifice délimité par la structure de traversée de paroi lorsque la manche est suspendue à cette structure par lesdits moyens de fixation.  The sleeve is sufficiently large and flexible to cover this first open end when the sleeve is suspended by said fixing means to the wall-through structure, so as to obscure the orifice defined by the wall-through structure when the sleeve is suspended to this structure by said fixing means.
La souplesse de la manche, en particulier sa capacité à se déformer sous son propre poids, peut résulter de la flexibilité et/ ou de l'épaisseur du matériau constitutif de la manche. En particulier, la manche peut présenter une épaisseur située dans une plage allant de 50 ou 100 micromètres environ, jusqu'à 500, 1000, ou 2000 micromètres environ. The flexibility of the sleeve, in particular its ability to deform under its own weight, may result from the flexibility and / or the thickness of the material constituting the sleeve. In particular, the sleeve may have a thickness in a range of about 50 or 100 micrometers, up to about 500, 1000, or 2000 micrometers.
La manche peut être fabriquée dans un matériau élastomère contenant une charge métallique, par exemple à partir d'un matériau décrit dans le brevet FR2948672, le cas échéant selon un procédé décrit dans ce brevet.  The sleeve may be made of an elastomeric material containing a metal filler, for example from a material described in the patent FR2948672, where appropriate according to a process described in this patent.
Lesdits moyens de fixation peuvent être intégrés à la manche, en particulier sous la forme d'une saillie (telle qu'un bourrelet par exemple) s'étendant le long de la première extrémité ouverte.  Said fixing means may be integrated into the sleeve, in particular in the form of a projection (such as a bead for example) extending along the first open end.
Les dimensions de la manche sont adaptées à celles de la structure de traversée de paroi, et/ ou à celles de l'orifice délimité par cette structure.  The dimensions of the sleeve are adapted to those of the wall penetration structure, and / or those of the orifice defined by this structure.
La forme de la manche peut être droite - c.à.d. la manche peut être cylindrique - ou évasée.  The shape of the sleeve may be straight - ie the sleeve may be cylindrical - or flared.
La manche peut comporter au moins une portion cylindrique qui peut être prolongée par au moins une portion évasée.  The sleeve may comprise at least one cylindrical portion which may be extended by at least one flared portion.
En d'autres termes, et selon un autre aspect de l'invention, la structure atténuant les rayonnements ionisants est une manche qui comporte une première extrémité ouverte agencée pour être solidarisée à la structure de traversée de paroi, et une seconde extrémité ouverte agencée pour (apte à) être traversée par un gant solidarisé à la structure de traversée de paroi ; la manche présente une capacité de déformation (réversible) suffisante pour que, lorsque la manche est suspendue par sa première extrémité à la structure de traversée de paroi, cette première extrémité s'étendant le long d'un plan peu incliné par rapport à la verticale, la seconde ouverture de la seconde extrémité ouverte se pince, et une portion de la manche s'étendant à partir de la seconde extrémité s'écrase, notamment sous l'effet du poids de cette portion de la manche ; et la manche présente en outre une forme et des dimensions telles que, dans cette configuration de suspension de la manche à la structure de traversée de paroi, la manche s'étend en regard de la totalité de l'orifice délimité par la structure de traversée de paroi, de façon à recouvrir, voire occulter l'orifice et atténuer les rayonnements ionisants traversant cet orifice. In other words, and according to another aspect of the invention, the ionizing radiation attenuating structure is a sleeve which comprises a first open end arranged to be secured to the wall-through structure, and a second open end arranged to (able to) be traversed by a glove secured to the wall penetration structure; the sleeve has a deformation capacity (reversible) sufficient so that, when the sleeve is suspended by its first end to the wall-through structure, this first end extending along a plane slightly inclined relative to the vertical the second opening of the second open end is clamped, and a portion of the sleeve extending from the second end crashes, in particular under the effect of the weight of this portion of the sleeve; and the sleeve further has a shape and dimensions such that, in this suspension configuration of the sleeve to the wall-through structure, the sleeve extends facing the entire orifice delimited by the wall through structure, so as to cover or obscure the orifice and attenuate the ionizing radiation passing through this orifice.
La manche peut comporter une première portion de manche s 'étendant au voisinage de la première extrémité ouverte de la manche, et présentant une première densité ; et la manche peut comporter une seconde portion de manche s 'étendant au voisinage de la seconde extrémité ouverte de la manche, et présentant une seconde densité supérieure à la première densité, de façon à faciliter la courbure et l'écrasement de la partie suspendue de manche, sous son propre poids.  The sleeve may comprise a first handle portion extending in the vicinity of the first open end of the sleeve, and having a first density; and the sleeve may include a second handle portion extending adjacent the second open end of the sleeve, and having a second density greater than the first density, so as to facilitate curvature and crushing of the suspended portion of the sleeve; sleeve, under his own weight.
A cet effet, la manche peut comporter des moyens de lestage et/ ou de renfort s'étendant au voisinage de la seconde extrémité ouverte de la manche, par exemple un revers formé dans la manche à sa seconde extrémité ouverte.  For this purpose, the sleeve may comprise weighting and / or reinforcement means extending in the vicinity of the second open end of the sleeve, for example a reverse formed in the sleeve at its second open end.
Lorsque l'orifice délimité par la structure de traversée de paroi est circulaire, la longueur de la portion de manche suspendue à cette structure est au moins égale au diamètre de cet orifice, de façon à pouvoir couvrir cet orifice, et généralement peu supérieure à ce diamètre ; en particulier, le rapport de cette longueur à ce diamètre peut être situé dans une plage allant de 1 environ à 1.5, 2, ou 4 environ.  When the orifice delimited by the wall-through structure is circular, the length of the handle portion suspended from this structure is at least equal to the diameter of this orifice, so as to cover this orifice, and generally little greater than this diameter; in particular, the ratio of this length to this diameter can be in a range from about 1 to about 1.5, 2, or 4.
Selon un autre aspect de l'invention, il est proposé une enceinte de confinement dont une paroi comporte une structure de traversée de paroi équipée d'un gant, ainsi que d'un dispositif de protection tel que défini ou décrit dans la présente demande.  According to another aspect of the invention, there is provided a containment enclosure whose wall comprises a wall penetration structure equipped with a glove, as well as a protection device as defined or described in the present application.
La raideur de la manche peut être du même ordre de grandeur que la raideur d'un gant équipant l'enceinte, notamment au moins égale à celle d'un gant équipant l'enceinte; en particulier, le rapport de la raideur de la manche à la raideur du gant peut être situé dans une plage allant de 0.1 à 10 environ, notamment dans une plage allant de 0.5 à 2 ou 3 environ.  The stiffness of the sleeve may be of the same order of magnitude as the stiffness of a glove equipping the enclosure, in particular at least equal to that of a glove equipping the enclosure; in particular, the ratio of the stiffness of the sleeve to the stiffness of the glove may be in a range from 0.1 to approximately 10, in particular in a range from 0.5 to 2 or 3 approximately.
Pour obtenir une manche dont la raideur soit suffisamment faible, on peut par exemple fabriquer la manche dans un matériau présentant un module dYoung (module d'élasticité) situé dans une plage allant de 106 Pascal (Pa) environ jusqu'à 108 Pa environ. To obtain a handle whose stiffness is sufficiently low, it is possible for example to manufacture the sleeve in a material having a dYoung modulus (modulus of elasticity) in a range from about 10 6 Pascal (Pa) to about 10 8 Pa.
D'autres aspects, caractéristiques, ou avantages de l'invention apparaissent dans la description suivante qui se réfère aux figures annexées et illustre, sans aucun caractère limitatif, des exemples de réalisation de l'invention.  Other aspects, features, or advantages of the invention appear in the following description which refers to the appended figures and illustrates, without any limiting character, exemplary embodiments of the invention.
BREVE DESCRIPTION DES FIGURES BRIEF DESCRIPTION OF THE FIGURES
La figure 1 est une vue en coupe longitudinale schématique d'un dispositif de protection contre les rayonnements ionisants selon un exemple de réalisation.  Figure 1 is a schematic longitudinal sectional view of a device for protection against ionizing radiation according to an exemplary embodiment.
La figure 2 est une vue en coupe longitudinale schématique d'un dispositif de protection contre les rayonnements ionisants selon un autre exemple de réalisation.  Figure 2 is a schematic longitudinal sectional view of a device for protection against ionizing radiation according to another embodiment.
Les figures 3 à 6 sont des vues en coupe schématiques d'une paroi d'une enceinte de confinement incluant une structure de traversée de paroi équipée d'un gant et d'une manche de protection contre les rayonnements ionisants, dans plusieurs configurations distinctes :  Figures 3 to 6 are schematic sectional views of a wall of a containment enclosure including a wall penetration structure equipped with a glove and a sleeve for protection against ionizing radiation, in several distinct configurations:
- dans la configuration illustrée figure 3, le gant et la manche sont retournés et s'étendent à l'intérieur de la structure de traversée de paroi et de l'enceinte de confinement; ceci correspond à une phase d'utilisation du gant et de la manche par un opérateur, pour traiter ou manipuler un objet ou matériau à l'intérieur de l'enceinte ;  in the configuration illustrated in FIG. 3, the glove and the sleeve are turned over and extend inside the wall-through structure and the containment enclosure; this corresponds to a phase of use of the glove and the sleeve by an operator, to treat or manipulate an object or material inside the enclosure;
- dans la configuration illustrée figure 4, le gant et la manche sont étirés et s'étendent à l'extérieur de la structure de traversée de paroi et de l'enceinte de confinement; ceci correspond à une phase d'extraction du gant et de la manche par un opérateur, hors de l'enceinte ;  in the configuration illustrated in FIG. 4, the glove and the sleeve are stretched out and extend outside the wall-through structure and the containment enclosure; this corresponds to a phase of extraction of the glove and sleeve by an operator, outside the enclosure;
- dans la configuration illustrée figure 5, le gant est raccourci, et le gant et la manche s'étendent à l'extérieur de la structure de traversée de paroi et de l'enceinte de confinement;  in the configuration illustrated in FIG. 5, the glove is shortened, and the glove and the sleeve extend outside the wall-through structure and the containment enclosure;
- dans la configuration illustrée figure 6, le gant raccourci s'étend à l'intérieur de la manche et de la structure de traversée de paroi, tandis que la manche est suspendue à la structure de traversée de paroi, ce qui correspond à une phase où le gant n'est pas utilisé. in the configuration illustrated in FIG. 6, the shortened glove extends inside the sleeve and the wall-through structure, while that the sleeve is suspended from the wall through structure, which corresponds to a phase where the glove is not used.
Les figures 7 et 8 sont des vues en coupe transversale schématiques respectives des deux portions d'extrémité de la manche dans sa configuration d'occultation de l'orifice illustrée figure 6.  FIGS. 7 and 8 are respective schematic cross sectional views of the two end portions of the sleeve in its occultation configuration of the orifice illustrated in FIG. 6.
La figure 9 est une vue en perspective schématique d'une enceinte de confinement incluant plusieurs structures de traversée de paroi équipées chacune d'un dispositif de protection contre les rayonnements ionisants.  FIG. 9 is a schematic perspective view of a containment enclosure including a plurality of wall penetration structures each equipped with a device for protection against ionizing radiation.
DESCRIPTION DETAILLEE DE L'INVENTION  DETAILED DESCRIPTION OF THE INVENTION
Sauf indication explicite ou implicite contraire, des éléments ou organes - structurellement ou fonctionnellement - identiques ou similaires sont désignés par des repères identiques sur les différentes figures.  Unless otherwise explicitly or implicitly stated, elements or members - structurally or functionally - identical or similar are designated by identical reference numerals in the different figures.
Par référence à la figure 1 notamment, le dispositif 10 de protection est constitué d'une manche 1 1 réalisée dans un matériau polymère, de type élastomère, chargé de particules métalliques pour atténuer les rayonnements ionisants traversant la paroi ou membrane formant cette manche.  With reference to FIG. 1 in particular, the protective device 10 consists of a sleeve 1 1 made of a polymeric material, of elastomer type, loaded with metal particles to attenuate the ionizing radiation passing through the wall or membrane forming this sleeve.
La manche 11 s'étend le long d'un axe 12 et est ouverte à ses deux extrémités 13, 14.  The sleeve 11 extends along an axis 12 and is open at both ends 13, 14.
L'épaisseur 15 de la membrane formant cette manche peut être de l'ordre de 100 μηι à 2000 μηι par exemple.  The thickness 15 of the membrane forming this sleeve may be of the order of 100 μηι to 2000 μηι for example.
La manche 11 comporte, sur sa face interne 17 et à proximité de sa première extrémité ouverte 14, une saillie (bourrelet par exemple) 16 annulaire, de section arrondie, s'étendant le long du contour de l'ouverture 14, à distance de celle-ci, et prévue pour s'engager dans une rainure annulaire formée sur une structure de traversée de paroi, comme illustré figures 3 à 6, pour solidariser la manche à cette structure.  The sleeve 11 has, on its inner face 17 and near its first open end 14, a projection (bead for example) 16 annular, of rounded section, extending along the contour of the opening 14, at a distance of this, and provided to engage in an annular groove formed on a wall through structure, as shown in Figures 3 to 6, to secure the sleeve to this structure.
Le dispositif 10 de protection illustré figure 1 est de forme cylindrique, d'axe 12, par exemple de section circulaire, notamment pour être monté sur une structure de traversée de paroi de forme annulaire (ou tubulaire) de section circulaire. The protection device 10 illustrated in FIG. 1 is of cylindrical shape, of axis 12, for example of circular section, in particular for be mounted on a wall-shaped annular (or tubular) structure of circular section.
Par référence à la figure 2, le dispositif 10 de protection est constitué d'une manche comportant une première portion cylindrique 1 12 s 'étendant à partir de la première extrémité ouverte 14, une seconde portion cylindrique 110 s'étendant à partir de la seconde extrémité ouverte 13, et une troisième portion (centrale) 1 1 1 reliant les premières et secondes portions 112, 110, de forme tronconique ou autrement évasée.  With reference to FIG. 2, the protective device 10 consists of a sleeve comprising a first cylindrical portion 1 12 extending from the first open end 14, a second cylindrical portion 110 extending from the second open end 13, and a third portion (central) 1 1 1 connecting the first and second portions 112, 110, of frustoconical shape or otherwise flared.
Ces trois portions de manche 1 10 à 1 12 peuvent présenter un axe commun 12 de symétrie de révolution.  These three portions of handle 1 10 to 1 12 may have a common axis 12 of symmetry of revolution.
Dans l'exemple de réalisation illustré figure 2, la saillie annulaire 16 s'étend à la première extrémité de la manche et borde la première ouverture 14.  In the embodiment illustrated in FIG. 2, the annular projection 16 extends at the first end of the sleeve and borders the first opening 14.
En outre, dans cet exemple, une partie terminale 11 10 de la portion 110 de manche est repliée (voire retournée) sur cette portion de manche, formant un revers extérieur présentant une densité voisine du double de celle de la portion 1 10 de manche, et une raideur accrue.  In addition, in this example, an end portion 11 of the portion 110 of the handle is folded (or even turned over) on this portion of the handle, forming an outer cuff having a density close to twice that of the portion 1 of handle 10, and increased stiffness.
Ce revers peut servir de lest favorisant la courbure de la manche 1 1 par rapport à l'axe 12, et peut servir de renfort ou raidisseur limitant le pincement de l'ouverture 13 et l'écrasement de la portion 110 de manche sous l'effet du poids de cette portion, comme décrit plus en détail en relation avec les figures 6 et 8 notamment.  This lapel can serve as ballast favoring the curvature of the sleeve 1 1 relative to the axis 12, and can serve as reinforcement or stiffener limiting the pinching of the opening 13 and the crushing of the portion 110 of the sleeve under the effect of the weight of this portion, as described in more detail in connection with FIGS. 6 and 8 in particular.
Par référence aux figures 3 à 6 et 9, une enceinte 18 de confinement est délimitée par des parois planes 19, 20 qui peuvent être réalisées en verre au plomb par exemple, et qui sont percées d'orifices 21 circulaires dans chacun desquels est engagée une structure 22 de traversée de paroi.  With reference to FIGS. 3 to 6 and 9, an enclosure 18 for confinement is delimited by plane walls 19, 20 which may be made of lead glass for example, and which are pierced with circular orifices 21 in each of which is engaged a structure 22 of the wall crossing.
Par référence aux figures 3 à 6, la structure 22 comporte une portion tubulaire 23 dont l'axe 24 est orthogonal au plan de la paroi 19, la portion 23 s'étendant au travers de l'orifice 21 percé dans la paroi 19, de part et d'autre de cette paroi. La structure 22 comporte également un premier épaulement 25 annulaire, d'axe 24, s'étendant à l'intérieur de l'enceinte 18, à l'extrémité de la portion 23 qui s'étend dans l'enceinte 18, et à partir de la surface externe de cette portion 23 dont l'épaulement 25 est solidaire. With reference to FIGS. 3 to 6, the structure 22 comprises a tubular portion 23 whose axis 24 is orthogonal to the plane of the wall 19, the portion 23 extending through the orifice 21 pierced in the wall 19, of on both sides of this wall. The structure 22 also comprises a first annular shoulder 25, of axis 24, extending inside the chamber 18, at the end of the portion 23 which extends into the chamber 18, and from of the outer surface of this portion 23, the shoulder 25 is integral.
La structure 22 comporte en outre une butée 26 annulaire, d'axe The structure 22 further comprises an annular abutment 26, of axis
24, s'étendant à l'extérieur de l'enceinte 18, à partir de la surface externe de cette portion 23 dont la butée 26 est rendue solidaire. 24, extending outside the chamber 18, from the outer surface of this portion 23, the stop 26 is secured.
La structure 22 est ainsi disposée en appui contre la face interne 190 de la paroi 19 par l'épaulement 25, et en appui contre la face externe 191 de la paroi 19 par la butée 26.  The structure 22 is thus placed in abutment against the inner face 190 of the wall 19 by the shoulder 25, and in abutment against the outer face 191 of the wall 19 by the abutment 26.
La partie de la portion tubulaire 23 qui s'étend à l'extérieur de l'enceinte 18, en saillie de la face externe 191 et de la butée 26, comporte une première rainure annulaire 27 recevant un anneau 29 élastique prévu à l'extrémité libre (ouverte) de la manche 30 d'un gant 31 , afin de solidariser de façon amovible le gant 31 à la structure 22 de traversée de paroi.  The part of the tubular portion 23 which extends outside the chamber 18, projecting from the outer face 191 and the stop 26, comprises a first annular groove 27 receiving an elastic ring 29 provided at the end free (open) of the sleeve 30 of a glove 31, to removably fasten the glove 31 to the structure 22 of the wall penetration.
La partie de la portion tubulaire 23 qui s'étend à l'extérieur de l'enceinte 18, en saillie de la face externe 191 et de la butée 26, comporte en outre une seconde rainure annulaire 28 recevant l'anneau 16 élastique prévu à la première extrémité ouverte de la manche 1 1 du dispositif 10, afin de solidariser de façon amovible le dispositif 10 à la structure 22 de traversée de paroi.  The part of the tubular portion 23 which extends outside the chamber 18, projecting from the outer face 191 and the stop 26, further comprises a second annular groove 28 receiving the elastic ring 16 provided for in FIG. the first open end of the sleeve 1 1 of the device 10, in order to removably fasten the device 10 to the structure 22 of the wall penetration.
La rainure 28 de fixation de la manche 1 1 est disposée en retrait de la rainure 27 de fixation du gant 31, de sorte que la manche 1 1 peut être solidarisée à la structure 22 dans l'une ou l'autre des configurations illustrées aux figures 3 à 6.  The groove 28 for fixing the sleeve January 1 is set back from the groove 27 for fixing the glove 31, so that the sleeve January 1 can be secured to the structure 22 in one or other of the configurations illustrated in FIGS. Figures 3 to 6.
La fixation du dispositif 10 à la structure 22 peut ne pas être étanche, et peut être obtenue par d'autres moyens de fixation de la manche, par exemple un collier de cerclage entourant la manche à proximité de la première extrémité ouverte de celle-ci.  Fixing the device 10 to the structure 22 may not be sealed, and may be obtained by other means of fixing the sleeve, for example a strapping collar surrounding the sleeve near the first open end thereof .
Lorsque, comme illustré figures 3 à 6, la fixation du dispositif 10 est assurée par la saillie annulaire 16 intégrée à la manche 1 1 , l'engagement de la saillie annulaire 16 autour de la portion 23 de la structure 22, jusque dans la rainure 28, peut être obtenu en élargissant l'ouverture 14 de la manche 1 1 , par déformation (élastique) de cette manche et de la saillie 16. When, as illustrated in FIGS. 3 to 6, the device 10 is secured by the annular projection 16 integrated in the sleeve 1 1, the engagement of the annular projection 16 around the portion 23 of the structure 22, into the groove 28, can be obtained by widening the opening 14 of the sleeve 1 1, by deformation (elastic) of this sleeve and the projection 16.
Dans ce cas, le périmètre du contour de l'ouverture 14 de la manche 1 1 est inférieur au périmètre du contour de la portion 23, lorsque la manche est « au repos », c.à.d. lorsque la manche n'est pas élastiquement déformée pour élargir l'ouverture 14.  In this case, the perimeter of the contour of the opening 14 of the sleeve January 1 is less than the perimeter of the contour of the portion 23, when the sleeve is "at rest", ie. when the sleeve is not elastically deformed to widen the opening 14.
Le contour de l'ouverture 14 de la manche 11 épouse alors le contour de la portion 23 de la structure 22, par exemple un contour circulaire illustré figure 7.  The contour of the opening 14 of the sleeve 11 then matches the contour of the portion 23 of the structure 22, for example a circular contour illustrated in FIG. 7.
Le dispositif 10 et la manche 1 1 sont ainsi agencés pour se déformer de façon réversible et prendre notamment chacune des trois configurations suivantes :  The device 10 and the sleeve 1 1 are thus arranged to deform reversibly and take in particular each of the following three configurations:
- une première configuration d'extension de la manche 11 , a first configuration of extension of the sleeve 11,
« à l'endroit », qui est illustrée figure 4, dans laquelle les deux extrémités ouvertes de la manche 11 s'étendent d'un même côté de la paroi 19, à l'extérieur de l'enceinte 18 ; dans cette configuration, les extrémités ouvertes 13, 14 de la manche 11 et l'orifice 21 prévu dans la paroi 19 sont sensiblement parallèles et alignés, facilitant le passage du bras d'un opérateur et du gant 31 solidaire de la structure 22, au travers de la manche 1 1 et au travers de cette structure 22 ; "At the place", which is illustrated in Figure 4, wherein the two open ends of the sleeve 11 extend on the same side of the wall 19, outside the chamber 18; in this configuration, the open ends 13, 14 of the sleeve 11 and the orifice 21 provided in the wall 19 are substantially parallel and aligned, facilitating the passage of the arm of an operator and the glove 31 secured to the structure 22, through the sleeve 1 1 and through this structure 22;
- une seconde configuration d'extension de la manche 1 1 , « à l'envers » ou « retournée », qui est illustrée figure 3, dans laquelle les deux extrémités 13, 14 ouvertes de la manche 11 s'étendent de part et d'autre de l'orifice 21 et de l'orifice 32 délimité par la structure 22 de traversée de paroi ; dans cette configuration, une portion de la manche 1 1 renforce la protection du bras d'un opérateur engagé dans le gant 31 solidaire de la structure 22 de traversée de paroi, cette portion de la manche 1 1 s'étendant à l'intérieur de la manche 30 du gant 31 , et à l'intérieur de l'enceinte 18 ; et - une configuration d'occultation de l'orifice 32 par la manche 11, qui est illustrée figure 6, dans laquelle la manche 1 1 est suspendue à la structure de traversée de paroi par les moyens 16 de fixation prévus à sa première extrémité 14, et couvre (obture) cet orifice 32. a second extension configuration of the sleeve 1 1, "upside down" or "inverted", which is illustrated in FIG. 3, in which the two open ends 13, 14 of the sleeve 11 extend from both sides other of the orifice 21 and the orifice 32 delimited by the structure 22 of the wall penetration; in this configuration, a portion of the sleeve January 1 reinforces the protection of the arm of an operator engaged in the glove 31 integral with the structure 22 of the wall penetration, this portion of the sleeve January 1 extending inside the the sleeve 30 of the glove 31, and inside the chamber 18; and an occultation configuration of the orifice 32 by the sleeve 11, which is illustrated in FIG. 6, in which the sleeve 1 1 is suspended from the wall-through structure by the fastening means 16 provided at its first end 14, and covers (closes) this orifice 32.
A cet effet, la longueur (repères 33 figures 1 et 2) de la manche 1 1 , mesurée entre ses extrémités 13, 14 ou entre les moyens 16 de fixation et la deuxième extrémité 13, est adaptée à la hauteur 34 (le cas échéant le diamètre) de la structure 22 et de l'orifice 32 que cette structure délimite, de façon à ce que la partie suspendue de la manche 1 1 s'étende en regard de la totalité de cet orifice.  For this purpose, the length (marks 33 Figures 1 and 2) of the sleeve January 1, measured between its ends 13, 14 or between the fixing means 16 and the second end 13, is adapted to the height 34 (where appropriate the diameter) of the structure 22 and the orifice 32 that this structure delimits, so that the suspended portion of the sleeve 1 1 extends opposite the entire orifice.
Par ailleurs, dans cette configuration d'occultation, la seconde ouverture de la seconde extrémité ouverte 13 se pince, comme illustré figure 8, et une portion de la manche 1 1 s 'étendant à partir de la seconde extrémité 13 s'écrase, notamment sous l'effet du poids de cette portion de la manche.  Moreover, in this occultation configuration, the second opening of the second open end 13 is clamped, as illustrated in FIG. 8, and a portion of the sleeve January 1 extending from the second end 13 crushes, in particular under the effect of the weight of this portion of the sleeve.
La manche 11 et le dispositif 10 permettent que le passage de l'une à l'autre de ces trois configurations ne nécessite pas un effort significatif de l'opérateur, et que la protection supplémentaire conférée par cette manche ne provoque pas de gêne significative pour l'opérateur.  The sleeve 11 and the device 10 allow the passage from one to the other of these three configurations does not require a significant effort of the operator, and the additional protection conferred by this sleeve does not cause significant inconvenience to the operator.
Par ailleurs, la manche 1 1 et le dispositif 10 permettent de raccourcir le gant 31 et de le loger dans l'espace délimité par la manche 11 et la structure 22, lorsque le gant 31 n'est pas utilisé.  Furthermore, the sleeve 1 1 and the device 10 can shorten the glove 31 and accommodate it in the space delimited by the sleeve 11 and the structure 22, when the glove 31 is not used.
A cet effet, à partir de la configuration illustrée figure 4, un nœud 300 est formé dans la manche 30 étirée du gant 31 , comme illustré schématiquement figure 5, puis la tension sur le gant est relâchée de façon à ce que le gant se loge à l'intérieur de la manche 1 1 et de la structure 22, comme illustré figure 6.  For this purpose, starting from the configuration illustrated in FIG. 4, a knot 300 is formed in the stretched sleeve 30 of the glove 31, as illustrated schematically in FIG. 5, then the tension on the glove is released so that the glove is lodged. inside the sleeve 1 1 and the structure 22, as shown in FIG. 6.
A partir de la configuration illustrée figure 6 dans laquelle le gant 31 n'est pas utilisé, l'opérateur peut saisir le gant 31 en introduisant sa main dans l'ouverture 13 pincée - mais non fermée - de la manche 1 1 , pour étirer la manche du gant hors de la manche 1 1 , défaire le n ud 300 pratiqué sur la manche 30 du gant, puis engager sa main et son bras dans le gant 31 , retourner le gant 31 et la manche 11 à l'intérieur de la structure 22, jusqu'à la configuration de travail illustrée figure 3. From the configuration shown in FIG. 6, in which the glove 31 is not used, the operator can grip the glove 31 by inserting his hand into the pinched opening 13 - but not closed - of the sleeve 1 1, to stretch the sleeve of the glove out of the sleeve 1 1, undo the knot 300 practiced on the sleeve 30 of the glove, then engage his hand and his arm in the glove 31, turn the glove 31 and the sleeve 11 inside the structure 22, to the working configuration illustrated in FIG.

Claims

Revendications claims
1 -. Dispositif (10) de protection contre les rayonnements ionisants traversant un orifice (32) délimité par une structure (22) de traversée de paroi équipée d'un gant (31), ledit dispositif comportant une structure d'atténuation des rayonnements ionisants traversant l'orifice (32), qui est apte à recouvrir (ou occulter) l'orifice (32), et comportant des moyens (16) de fixation agencés pour assurer une fixation amovible de la structure d'atténuation des rayonnements ionisants à la structure (22) de traversée de paroi, caractérisé en ce que la structure d'atténuation des rayonnements ionisants est une manche (11) ouverte à ses deux extrémités (13, 14), déformable sous son poids, agencée pour être fixée à la structure (22) de traversée de paroi par lesdits moyens (16) de fixation, par une première extrémité ouverte (14) de la manche (11), et agencée pour pouvoir être retournée de façon à s'étendre, en partie, à l'intérieur de la manche (30) du gant (31). 1 -. Device (10) for protection against ionizing radiation passing through an orifice (32) delimited by a wall-passing structure (22) equipped with a glove (31), said device comprising a structure for attenuating the ionizing radiation passing through the orifice (32), which is capable of covering (or obscuring) the orifice (32), and comprising fixing means (16) arranged to ensure a removable attachment of the attenuation structure of the ionizing radiation to the structure (22); ), characterized in that the attenuation structure of the ionizing radiation is a sleeve (11) open at both ends (13, 14), deformable under its weight, arranged to be fixed to the structure (22) wall through said fastening means (16), by a first open end (14) of the sleeve (11), and arranged to be turned so as to extend, in part, inside the sleeve (30) of the glove (31).
2 - Dispositif selon la revendication 1 dans lequel la manche (11) présente une forme, des dimensions, et une raideur suffisamment faible pour pouvoir être retournée et s'étendre en partie à l'intérieur de la structure (22) de traversée de paroi, au travers de l'orifice (32), et pour partie à l'extérieur de cette structure (22), de façon à renforcer la protection du bras d'un opérateur engagé dans la manche (1 1) et dans l'orifice (32).  2 - Device according to claim 1 wherein the sleeve (11) has a shape, dimensions, and stiffness sufficiently low to be returned and extend in part within the structure (22) of the wall crossing , through the orifice (32), and partly outside of this structure (22), so as to reinforce the protection of the arm of an operator engaged in the sleeve (1 1) and in the orifice (32).
3 - Dispositif selon la revendication 1 ou 2 dans lequel la manche (1 1) présente une épaisseur (15) située dans une plage allant de 50 ou 3 - Device according to claim 1 or 2 wherein the sleeve (1 1) has a thickness (15) in a range from 50 or
100 micromètres, jusqu'à 500, 1000, ou 2000 micromètres. 100 micrometers, up to 500, 1000, or 2000 micrometers.
4 - Dispositif selon l'une quelconque des revendications 1 à 3 dans lequel la manche (11) est fabriquée dans un matériau élastomère contenant une charge métallique.  4 - Device according to any one of claims 1 to 3 wherein the sleeve (11) is made of an elastomeric material containing a metal filler.
5 - Dispositif selon l'une quelconque des revendications 1 à 4 dans lequel lesdits moyens de fixation sont, en partie au moins, intégrés à la manche (1 1). 6 - Dispositif selon l'une quelconque des revendications 1 à 6 dans lequel lesdits moyens de fixation comportent une saillie (16) intégrée à la manche (11) et s'é tendant le long de la première extrémité ouverte (14). 5 - Device according to any one of claims 1 to 4 wherein said fixing means are at least partly integrated with the sleeve (1 1). 6 - Device according to any one of claims 1 to 6 wherein said fixing means comprise a projection (16) integral with the sleeve (11) and extending along the first open end (14).
7 - Dispositif selon l'une quelconque des revendications 1 à 6 dans lequel la manche (1 1) comporte au moins une portion (1 10, 112) cylindrique et/ ou au moins une portion (1 1 1) évasée.  7 - Device according to any one of claims 1 to 6 wherein the sleeve (1 1) comprises at least one portion (1 10, 112) cylindrical and / or at least one portion (1 1 1) flared.
8 - Dispositif selon l'une quelconque des revendications 1 à 7 dans lequel la manche (1 1) comporte une première portion de manche s 'étendant au voisinage de la première extrémité ouverte (14) de la manche, et présentant une première densité, et la manche comporte une seconde portion de manche s'étendant au voisinage de la seconde extrémité ouverte (13) de la manche, et présentant une seconde densité supérieure à la première densité.  8 - Device according to any one of claims 1 to 7 wherein the sleeve (1 1) comprises a first handle portion extending adjacent the first open end (14) of the sleeve, and having a first density, and the sleeve has a second handle portion extending adjacent the second open end (13) of the sleeve, and having a second density greater than the first density.
9 - Dispositif selon l'une quelconque des revendications 1 à 8 dans lequel la manche (1 1) comporte des moyens (1 100) de lestage et/ou de renfort s'étendant au voisinage de la seconde extrémité ouverte (13) de la manche.  9 - Device according to any one of claims 1 to 8 wherein the sleeve (1 1) comprises means (1 100) ballast and / or reinforcement extending in the vicinity of the second open end (13) of the handle.
10 - Dispositif selon la revendication 9 dans lequel les moyens (1 100) de lestage et/ ou de renfort comportent un revers (1 100) formé dans la manche à sa seconde extrémité ouverte (13).  10 - Device according to claim 9 wherein the means (1 100) of weighting and / or reinforcement comprise a setback (1 100) formed in the sleeve at its second open end (13).
1 1 - Dispositif selon l'une quelconque des revendications 1 à 10 dans lequel la longueur (33) de la portion de manche suspendue à la structure (22) de traversée de paroi est au moins égale au diamètre de l'orifice (32), le rapport de cette longueur à ce diamètre pouvant être situé dans une plage allant de 1 à 1.5 ou 2.  1 1 - Device according to any one of claims 1 to 10 wherein the length (33) of the handle portion suspended from the structure (22) of the wall penetration is at least equal to the diameter of the orifice (32) , the ratio of this length to this diameter being in a range from 1 to 1.5 or 2.
12 - Enceinte (18) de confinement comportant une paroi (19, 20) percée d'un orifice (21) et comportant une structure (22) de traversée de paroi équipée d'un gant (31) ainsi que d'un dispositif (10) de protection selon l'une quelconque des revendications 1 à 11.  Containment enclosure (18) comprising a wall (19, 20) pierced with an orifice (21) and comprising a structure (22) for wall penetration equipped with a glove (31) and a device ( 10) of protection according to any one of claims 1 to 11.
13 - Enceinte selon la revendication 12 dans lequel la manche (11) est fabriquée dans un matériau présentant un module dYoung situé dans une plage allant de 106 Pascal (Pa) environ jusqu'à 108 Pa environ. 13 - Enclosure according to claim 12 wherein the sleeve (11) is made of a material having a dYoung module in a range from about 10 6 Pascal (Pa) to about 10 8 Pa.
14 - Enceinte selon la revendication 12 ou 13 dans lequel la manche (1 1) présente une capacité de déformation suffisante pour que, lorsque la manche est suspendue par sa première extrémité (14, 16) à la structure (22) de traversée de paroi, la seconde ouverture de la seconde extrémité ouverte (13) se pince, et une portion de la manche s'étendant à partir de la seconde extrémité s'écrase, notamment sous l'effet du poids de cette portion de la manche ; et la manche présente une forme et des dimensions telles que, dans cette configuration de suspension de la manche à la structure de traversée de paroi, la manche s'étend en regard de la totalité de l'orifice (32) délimité par la structure de traversée de paroi, de façon à recouvrir (occulter) l'orifice (32) et atténuer les rayonnements ionisants traversant cet orifice.  14 - Enclosure according to claim 12 or 13 wherein the sleeve (1 1) has a sufficient deformation capacity so that, when the sleeve is suspended at its first end (14, 16) to the structure (22) wall crossing , the second opening of the second open end (13) is clamped, and a portion of the sleeve extending from the second end crashes, in particular under the effect of the weight of this portion of the sleeve; and the sleeve has a shape and dimensions such that, in this suspension configuration of the sleeve to the wall-through structure, the sleeve extends facing the entire orifice (32) delimited by the structure of wall crossing, so as to cover (obscure) the orifice (32) and attenuate the ionizing radiation passing through this orifice.
15 - Enceinte selon l'une quelconque des revendications 12 à 14 dans laquelle la manche (11) est agencée pour pouvoir être retournée de façon à s'étendre, en partie, à l'intérieur de l'enceinte (18).  15 - enclosure according to any one of claims 12 to 14 wherein the sleeve (11) is arranged to be returned to extend, in part, within the enclosure (18).
EP14711546.3A 2013-02-21 2014-02-19 Device for protecting against ionising radiation and containment enclosure provided with such a device Not-in-force EP2959489B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1300391A FR3002362A1 (en) 2013-02-21 2013-02-21 IONIZING RADIATION PROTECTION DEVICE AND CONFINEMENT ENCLOSURE EQUIPPED WITH SUCH A DEVICE
PCT/FR2014/000040 WO2014128368A1 (en) 2013-02-21 2014-02-19 Device for protecting against ionising radiation and containment enclosure provided with such a device

Publications (2)

Publication Number Publication Date
EP2959489A1 true EP2959489A1 (en) 2015-12-30
EP2959489B1 EP2959489B1 (en) 2016-11-09

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EP14711546.3A Not-in-force EP2959489B1 (en) 2013-02-21 2014-02-19 Device for protecting against ionising radiation and containment enclosure provided with such a device

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US (1) US9524805B2 (en)
EP (1) EP2959489B1 (en)
JP (1) JP6374408B2 (en)
KR (1) KR20150118163A (en)
CN (1) CN105027226B (en)
FR (1) FR3002362A1 (en)
RU (1) RU2641716C2 (en)
WO (1) WO2014128368A1 (en)

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CN109623882A (en) * 2018-12-28 2019-04-16 中国原子能科学研究院 Gloves protective device for glove box
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CN114961409B (en) * 2022-06-07 2023-04-28 厦门华厦学院 Movable nucleic acid sampling tent

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Publication number Publication date
US9524805B2 (en) 2016-12-20
JP6374408B2 (en) 2018-08-15
FR3002362A1 (en) 2014-08-22
RU2641716C2 (en) 2018-01-22
JP2016509227A (en) 2016-03-24
RU2015139888A (en) 2017-03-24
EP2959489B1 (en) 2016-11-09
CN105027226B (en) 2017-08-22
KR20150118163A (en) 2015-10-21
US20160005502A1 (en) 2016-01-07
CN105027226A (en) 2015-11-04
WO2014128368A1 (en) 2014-08-28

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