EP0247921B1 - Lösbare Vorrichtung zum Verbinden zweier eingeschlossener Rauminhalte ohne Bruch der Umschliessung - Google Patents

Lösbare Vorrichtung zum Verbinden zweier eingeschlossener Rauminhalte ohne Bruch der Umschliessung Download PDF

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Publication number
EP0247921B1
EP0247921B1 EP87401074A EP87401074A EP0247921B1 EP 0247921 B1 EP0247921 B1 EP 0247921B1 EP 87401074 A EP87401074 A EP 87401074A EP 87401074 A EP87401074 A EP 87401074A EP 0247921 B1 EP0247921 B1 EP 0247921B1
Authority
EP
European Patent Office
Prior art keywords
door
flange
gasket
closed
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87401074A
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English (en)
French (fr)
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EP0247921A1 (de
Inventor
Charles Glachet
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.)
Getinge Life Science France SAS
Original Assignee
Societe Nouvelle dExploitation La Calhene
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 Societe Nouvelle dExploitation La Calhene filed Critical Societe Nouvelle dExploitation La Calhene
Publication of EP0247921A1 publication Critical patent/EP0247921A1/de
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Publication of EP0247921B1 publication Critical patent/EP0247921B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/04—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
    • G21F7/005—Shielded passages through walls; Locks; Transferring devices between rooms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/921—Closure or weather strip seal

Definitions

  • the invention relates to a disconnectable device intended to connect two closed volumes, such as a confinement enclosure and a transport container, without breaking the confinement of these two volumes.
  • Such a device finds its application as well in the nuclear industry as in the chemical, medical, pharmaceutical or electronic industries.
  • each of the enclosed volumes has at least one generally circular access opening delimited by a flange and normally closed by a door.
  • the flanges and the doors are provided with disconnectable fixing means making it possible to connect the flanges and the doors of the two closed volumes. After opening the double door thus formed, the two closed volumes are put in communication and the transfers of products and equipment can be carried out.
  • Patent FR-A-1 346 486 from the French Atomic Energy Commission describes a sealed junction device between two sealed enclosures, in which this result is obtained by means of two seals having a section in the shape of a curvilinear polygon. These seals are received in grooves of square section formed respectively in the door of one of the enclosures and in the flange of the other enclosure. When the enclosures are docked and the double door still in place, the desired containment is obtained by contact of the lips of the seals both with the groove in which they are received, with the door or the flange of the corresponding closed volume and with the flange or the door of the other closed volume.
  • lip seals are not entirely satisfactory when significant pressure differences exist between the enclosed volumes and the external atmosphere. Indeed, depending on whether the internal pressure in the enclosed volumes is lower or higher than the external pressure, the lips of the seals must be oriented differently, which means that in both cases different seals must be used. In addition, in the event that the pressure gradient is temporarily reversed, the quality of the seal may be affected.
  • the present invention specifically relates to a disconnectable device for connecting two closed volumes without breaking the confinement of the latter vis-à-vis the external atmosphere, this device using seals of new design, particularly simple and inexpensive, which can be used interchangeably, whether the closed volumes are in overpressure or in depression with respect to the external atmosphere, and preserving the confinement, even when they are subjected to high pressure differences.
  • a disconnectable device for connecting two closed volumes without breaking the confinement of the latter vis-à-vis the external atmosphere, each of these volumes having at least a circular opening with a given axis, delimited by a flange and normally closed by a door, this device comprising detachable fixing means for the doors on the flanges, detachable fixing means for the flanges one on the other, means fixing means that can be disconnected from one another, and sealing means consisting of two annular seals to permanently confine said enclosed volumes vis-à-vis the external atmosphere, characterized in that that said seals each have in section an approximately circular part and at least one projecting part forming a fixing heel, the heel of a first of these seals being housed in a sealed manner in a groove formed in the door of a first of the closed volumes, the approximately circular part of this seal being in leaktight contact with two surfaces inclined relative to the axes of the openings and formed respectively on the flange from the first closed volume and
  • each of the seals has a central recess of approximately circular section, concentric with said approximately circular part.
  • the inclined surfaces may have an approximately rectilinear section or be concave and have an arcuate section of radius at least equal to the radius of the approximately circular parts of the joints.
  • the protruding parts of the seals can in particular be oriented parallel to the axes of the openings and have an approximately rectangular shape.
  • the door of the enclosure has cut sides in two diametrically opposite locations, separated by a maximum distance less than the inside diameter of the container, and the container flange has notches in two diametrically opposite locations, the width of these notches being greater than the thickness of the enclosure door and the distance separating the bottom of these notches being greater than the maximum distance separating the cut sides.
  • FIG. 1 represents a device 10 according to the invention for communicating a closed volume 12 with a closed volume 14 without at any time breaking the seal or confinement between these closed volumes 12 and 14 and the external atmosphere 16.
  • the enclosed volume 12 is the interior of a confinement enclosure, part of the wall of which is shown at 18.
  • the enclosed volume 14 is constituted by the interior d 'a container, part of the wall of which is shown at 20. It goes without saying that the device 10 according to the invention can be used to connect two closed volumes of different nature, for example two containment cells.
  • the wall 18 comprises a flange 22 delimiting a circular opening 24 normally closed by a door 26.
  • the wall 20 of the container ends at one of its ends by a flange 28 delimiting a circular opening 30.
  • This opening is normally closed by a door 32.
  • removable fixing means are provided between each of the doors 26, 32 and the corresponding flange 22, 28, between the flanges 22 and 28 as well as between the doors 26 and 32.
  • These fixing means can take any known form and they can in particular be either mechanical or magnetic, without departing from the scope of the invention.
  • dashed lines 34 in FIG. 1 diagrammatically show screws or a similar mechanism by which the door 26 is fixed internally and detachably in the opening 24 of the flange 22.
  • the reference 36 designates a bayonet connection by which the door 32 is detachably fixed on the flange 28 of the container.
  • the phantom lines 38 correspond to screws or to a similar mechanism by which the flange 28 of the container can be fixed in a removable manner on the flange 22 of the enclosure, outside of the latter.
  • phantom lines 40 schematically represent screws or a similar mechanism by means of which the covers 26 and 32 can be secured to each other in a removable manner from the interior of the confinement enclosure.
  • the openings 24 and 30 formed in the flanges 22 and 28 are normally closed by the doors 26 and 32.
  • the flange 28 is fixed to the flange 22 by the screws 38.
  • the doors 26 and 32 are joined together by the screws 40.
  • the double door 26, 32 thus formed is then dismantled by unscrewing the screws 34, then rotating the two doors in order to disconnect the bayonet system 36.
  • the volumes 12 and 14 then communicate with each other through their openings 24 and 30.
  • seals 42a and 42b being identical, only the seal 42a will be described, the corresponding elements of the seal 42b bearing the same references assigned the letter b.
  • the seal 42a is an annular seal, made of a deformable and waterproof material such as silicone or an elastomer. Its outer surface has in section an approximately circular part 44a and an approximately rectangular projecting part 46a disposed radially with respect to the part 44a and oriented parallel to the axis of the joint, that is to say parallel to the common axis openings 24 and 30, when the container is docked on the enclosure.
  • the seal 42a also has a central recess 48a, of approximately circular section and concentric with the part 44a. This recess, which can in some cases be eliminated, gives the joint greater flexibility.
  • the joints 42a and 42b have in section a symmetrical shape with respect to an axis passing through the center of the part 42a and oriented parallel to the axis of the joint.
  • the part 46a of the seal 42a forms a fixing heel by which this seal is housed in a sealed manner in a groove of complementary shape 50 formed on the end face of the cover 26 turned towards the outside of the enclosure.
  • the approximately circular part 44a of the joint 42a is simultaneously in tight contact with two inclined surfaces 22a and 32a formed respectively on the flange 22 and on the door 32, and with the approximately circular part 44b of the seal 42b.
  • the surface 22a is formed inside the flange 22, in a small diameter portion of this flange close to the outside of the closed volume 12.
  • the surface 22a is inclined relative to the 'axis of the opening 24, so as to be turned towards the closed volume 12.
  • the surface 32a is formed in turn at the periphery of the door 32, on a large diameter part of the latter coming to be housed in the small diameter part of the flange 22 when the container is docked on the enclosure.
  • the surface 32a is inclined relative to the axis of the opening 30, so as to be turned towards the outside of the closed volume 14.
  • the part 46b of the second seal 42b also forms a fixing heel which is received in a complementary groove 52 formed in the flange 28 of the container, on one face of this flange facing outwards from the closed volume 14.
  • the approximately circular part 44b of the seal 42b is simultaneously in sealed contact with two other inclined surfaces 22a and 32b formed respectively on the flange 22 and on the door 32 , as well as with the part 44a of the seal 42a.
  • the surface 22b is formed on the small diameter portion of the flange 22, and extends the surface 22a outward relative to the enclosed volume 12, so that this small diameter portion has in section approximately the in the form of a V.
  • this surface 22b is inclined relative to the axis of the opening 24, towards the outside of the closed volume 12.
  • the surface 32b is formed on the part of larger diameter of the door 32 and extends the surface 32a towards the interior of the closed volume 14, so that this part of large diameter has in section approximately the shape of a V.
  • This surface 32b is inclined relative to the axis of the opening 30, towards the inside of the closed volume 14.
  • the surfaces 22a, 32a, 22b and 32b are concave surfaces having in section the shape of an arc of a circle whose radius is approximately equal to the radius of the parts 44a and 44b of the joints.
  • these surfaces 22a, 32a, 22b and 32b can also be frustoconical surfaces having an approximately rectilinear section. This variant has the advantage of simplifying the machining of surfaces.
  • the invention makes it possible to achieve the desired seal thanks to the combination of two approximately O-rings 42a and 42b fixed by heels respectively in the door 26 and in the flange 28, each of these seals being able to come into tight contact. by at least one point of its section with the other joint and with inclined surfaces formed on the flange 22 and on the door 32.
  • Figures 3 and 4 show another embodiment of the invention highlighting another advantage provided by it.
  • connection devices using gaskets of conventional design the replacement of the gaskets associated with the enclosure door poses a problem which is difficult to solve. Indeed, to allow the replacement of this seal, the door must be removed from the enclosure, which can generally only be done by a similar device, but of larger size, giving access to another container. It therefore immediately appears that the replacement of the seal carried by the larger diameter door of an enclosure cannot be done.
  • Figures 3 and 4 show that the device of the invention solves this problem, by allowing the passage of the enclosure door through the opening which it normally provides closure.
  • the seal associated with this door by evacuating it by the associated container, after having introduced into the enclosure a door provided with a new seal and brought by the same container.
  • annular seal 142a mounted on the door 126 and by an annular seal 142b mounted on the flange 128.
  • Each of these seals 142a, 142b comprises in section an approximately circular or 0-shaped hollow part and a heel in those parts, each of the two parts of this heel being inclined in opposite directions relative to a straight line oriented parallel to the axis of the joint.
  • this straight line is offset inwardly relative to the circular part of the seal. On the contrary, it is offset towards the outside with respect to the circular part of the seal 142b.
  • the two joints 142a and 142b have approximately in section the shape of an R.
  • the heel in two parts of the joint 142a is housed in a groove formed on the end face of the door 126 facing outwards from the insulator, near the peripheral edge of this face.
  • the circular part of this seal 142a is normally in abutment against a frustoconical or curvilinear surface formed on the flange 122 and turned towards the interior of the cell.
  • the circular part of the seal 142a is also supported on a frustoconical or curvilinear surface formed at the intersection of the external face and the peripheral edge of the cover 132 and, between these surfaces of the flange 122 and of the cover 132, on the circular part of the seal 142b.
  • the heel in two parts of the joint 142b is housed in a groove formed on the end face of the flange 128 facing outwards from the container, near the opening 130.
  • the circular part of this joint is supported on a frustoconical or curvilinear surface formed on the outer peripheral edge of the door 132 and turned towards the inside of the container, when this door is in place.
  • this circular part is in abutment against a frustoconical or curvilinear surface formed at the intersection of the external face and the internal peripheral edge of the flange 122, and against the circular part of the attached 142a.
  • the relative diameters of the seals 142a and 144a are such that the outside diameter of the seal 142a is approximately equal to the diameter of the seal 142b at the center of its circular part. Conversely, the inside diameter of the seal 142b is approximately equal to the diameter of the seal 142a at the center of its circular part.
  • the door 126 includes inside the cell a flange 127 normally coming to bear on the interior face of the flange 122.
  • its outer peripheral edge has, in two diametrically opposite locations, cut sides 160 between which the maximum distance is less than the inside diameter of the container.
  • cut sides 160 One of these cut sections is shown in the left half of FIG. 3. As illustrated in this figure, the maximum distance between the cut sections is greater than the outside diameter of the heel of the joint 142a, but less than the outside diameter of this section. attached.
  • the part of the flange 128 which projects inside the container, to delimit the opening 130 has two notches 162 located at diametrically opposite locations.
  • the width of these notches is greater than the thickness of the door 126 and the distance separating the bottoms of these notches is greater than the maximum distance separating the cut sides 160 from the door 126, so that the latter can pass through the flange 128 after having been inclined by 90 °, when the cut sides 160 are placed opposite the notches 162, as illustrated in FIG. 4.
  • the distance separating the bottoms of the notches 162 is greater than the internal diameter of the joint 142b and less than the inside diameter of the heel of this joint.
  • the central recess formed in the joints can possibly be eliminated.
  • the heels ensuring the fixing of the joints can take different forms from the forms described.
  • the surfaces on which the seal comes into leaktight support can take different forms.
  • the removable fixing means which must be provided between the flanges and the doors can be the subject of many different embodiments without departing from the scope of the invention.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Closures For Containers (AREA)
  • Gasket Seals (AREA)
  • Casings For Electric Apparatus (AREA)

Claims (7)

1. Lösbare Vorrichtung zum Verbinden zweier eingeschlossener Volumen (12, 14) ohne Bruch der Umschließung der letzteren zur äußeren Atmosphäre (16) hin, wobei jedes dieser Volumen wenigstens eine kreisförmige Öffnung (24,30) mit gegebener Achse besitzt, die von einem Flansch (22, 28) begrenzt ist und normalerweise von einer Tür (26, 32) verschlossen ist, wobei diese Vorrichtung abnehmbare Verbindungsvorrichtungen (34, 36) für die Türen an den Flanschen, abnehmbare Verbindungsvorrichtungen (38) für die Flansche aufeinander, abnehmbare Verbindungsvorrichtungen (40) für die Türen aufeinander und Abdichtungsvorrichtungen (42a, 42b) besitzt, die aus zwei ringförmigen Dichtungsverbindungen (42a, 42b) bestehen, um dauerhaft einen Einschluß der eingeschlossenen Volumen gegenüber der äußeren Atmosphäre sicherzustellen, dadurch gekennzeichnet, daß die Dichtungsverbindungen jeweils im Querschnitt einen etwa kreisförmigen Teil (44a, 44b) und wenigstens einen vorspringenden Teil (46a, 46b) aufweisen, der eine Befestigungsnase bildet, wobei die Nase einer ersten (42a) dieser Verbindungen dicht in einer in der Tür (26) eines ersten (12) der geschlossenen Volumen gebildeten Vertiefung (50) angeordnet ist, wobei der in etwa kreisförmige Teil (44a) dieser Verbindung in dichtem Kontakt mit zwei Oberflächen (22a, 32a) ist, die bezügliche der Achsen der Öffnungen geneigt sind und jeweils auf der Flansch (22) des ersten umschlossenen Volumens und auf der Tür (32) des zweiten umschlossenen Volumens gebildet sind, wenn alle Befestigungsvorrichtungen verbunden sind, wobei die Nase der zweiten (42b) dieser Verbindungen dicht in einer in der Flansch (28) des zweiten der geschlossenen Volumen gebildeten Vertiefung (52) angeordnet ist, wobei der in etwa kreisförmige Teil (44b) dieser zweiten Verbindung in dichtem Kontakt mit zwei weiteren Oberflächen (32b, 22b), die bezügliche der Achsen der Öffnungen geneigt sind und jeweils auf der Tür (32) des zweiten umschlossenen Volumens und auf der Flansch (22) des ersten umschlossenen Volumens gebildet sind, ebenso wie mit dem in etwa kreisförmigen Teil (44a) der ersten Verbindung ist, wenn alle Befestigungsvorrichtungen verbunden sind.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jede der Dichtungsverbindungen (42a, 42b) eine zentrale Vertiefung (48a, 48b) mit in etwa kreisförmigen Querschnitt besitzt, die konzentrisch mit dem in etwa kreisförmigen Teil (44a, 44b) ist.
3. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die geneigten Oberflächen (22a, 22b, 32a, 32b) einen in etwa geradlinigen Querschnitt aufweisen.
4. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die geneigten Oberflächen (22a, 22b, 32a, 32b) konkav sind, und einen kreisbogenförmigen Querschnitt mit einem Radius wenigsten gleich dem Radius der in etwa kreisförmigen Teile (44a, 44b) der Verbindungen aufweisen.
5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die vorspringenden Teile (46a, 46b) der Dichtungsverbindungen parallel zu den Achsen der Öffnungen ausgerichtet sind und eine in etwa rechtwinklige Form besitzen.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß, während das erste und das zweite geschlossene Volumen jeweils eine Sicherheitshülle und ein Transportbehälter sind, die Tür (126) der Hülle gebrochene Kanten (160) an zwei diametral gegenüberliegenden Stellen aufweist, die durch einen maximalen Abstand kleiner als der niedrigste Durchmesser des Behälters getrennt sind, und der Flansch (128) des Behälters zwei Aussparungen (162) an zwei diametral gegenüberliegenden Stellen aufweist, wobei die Breite der Aussparungen größer als die Breite der Tür (126) der Hülle ist und der Abstand zwischen den unteren Teilen dieser Aussparungen größer ist als der maximale Abstand, der die gebrochenen Kanten (160) trennt.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der vorspringende Teil der Verbindung (142a), die auf der Tür (126) der Hülle montiert ist, zum Innern bezüglich des kreisförmigen Teils dieser Verbindung versetzt ist, während der vorspringende Teil der Verbindung (142b), die in dem Flansch (128) des Behälters montiert ist, nach außen bezüglich des kreisförmigen Teils dieser Verbindung versetzt ist.
EP87401074A 1986-05-15 1987-05-13 Lösbare Vorrichtung zum Verbinden zweier eingeschlossener Rauminhalte ohne Bruch der Umschliessung Expired - Lifetime EP0247921B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8606984 1986-05-15
FR8606984A FR2600980B1 (fr) 1986-05-15 1986-05-15 Dispositif deconnectable pour la mise en communication de deux volumes clos sans rupture du confinement

Publications (2)

Publication Number Publication Date
EP0247921A1 EP0247921A1 (de) 1987-12-02
EP0247921B1 true EP0247921B1 (de) 1991-01-30

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Application Number Title Priority Date Filing Date
EP87401074A Expired - Lifetime EP0247921B1 (de) 1986-05-15 1987-05-13 Lösbare Vorrichtung zum Verbinden zweier eingeschlossener Rauminhalte ohne Bruch der Umschliessung

Country Status (5)

Country Link
US (1) US4747601A (de)
EP (1) EP0247921B1 (de)
JP (1) JPS6324198A (de)
DE (1) DE3767771D1 (de)
FR (1) FR2600980B1 (de)

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FR2621974B1 (fr) * 1987-10-15 1990-01-12 Commissariat Energie Atomique Dispositif de raccordement deconnectable de deux enceintes etanches
US5426676A (en) * 1993-10-22 1995-06-20 Westinghouse Electric Corporation Extrusion-resistant seal assembly
US6076835A (en) * 1997-05-21 2000-06-20 Allison Advanced Development Company Interstage van seal apparatus
FI106873B (fi) * 1998-05-26 2001-04-30 Outokumpu Oy Menetelmä uuttolaitteiston tiivistämiseksi
US6189716B1 (en) * 1999-12-15 2001-02-20 Delphi Technologies, Inc. Secondary sealing of a fuel tank
DE10004695C1 (de) * 2000-01-26 2001-04-12 Glatt Systemtechnik Dresden Dichtsystem an einem Konstruktionselement mit einer verschliessbaren Durchlassöffnung und Verfahren zur Anwendung
JP4397278B2 (ja) * 2004-06-03 2010-01-13 株式会社菊水製作所 グローブ取付装置
US8272338B2 (en) * 2009-09-28 2012-09-25 Leslie Ho Leung Chow Safe anchoring device
US9528240B2 (en) * 2011-12-02 2016-12-27 Aco Polymer Products, Inc. Safety edge sports channel
FR2990423B1 (fr) * 2012-05-10 2015-03-20 Charles Glachet Joints de jonction de double porte a transfert etanche et procede de manœuvre de ces joints
JP6404178B2 (ja) * 2015-04-28 2018-10-10 千代田メインテナンス株式会社 有害物質を収納する気密容器及び容器開閉機構
USD895356S1 (en) * 2017-01-25 2020-09-08 Tsann Kuen (Zhangzhou) Enterprise Co., Ltd. Grill

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Also Published As

Publication number Publication date
EP0247921A1 (de) 1987-12-02
US4747601A (en) 1988-05-31
FR2600980A1 (fr) 1988-01-08
FR2600980B1 (fr) 1988-10-21
JPS6324198A (ja) 1988-02-01
DE3767771D1 (de) 1991-03-07

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