EP0505269B1 - Verfahren und Anlage zum Umladen von Materialien von einem verseuchten Raum in einen zweiten Raum, ohne diesen zu verseuchen - Google Patents

Verfahren und Anlage zum Umladen von Materialien von einem verseuchten Raum in einen zweiten Raum, ohne diesen zu verseuchen Download PDF

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Publication number
EP0505269B1
EP0505269B1 EP92400718A EP92400718A EP0505269B1 EP 0505269 B1 EP0505269 B1 EP 0505269B1 EP 92400718 A EP92400718 A EP 92400718A EP 92400718 A EP92400718 A EP 92400718A EP 0505269 B1 EP0505269 B1 EP 0505269B1
Authority
EP
European Patent Office
Prior art keywords
door
flange
enclosure
adaptor
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
EP92400718A
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English (en)
French (fr)
Other versions
EP0505269A1 (de
Inventor
Charles Glachet
Liliane Ponchet
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
La Calhene SA
SNE la Calhene SA
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 La Calhene SA, SNE la Calhene SA filed Critical La Calhene SA
Publication of EP0505269A1 publication Critical patent/EP0505269A1/de
Application granted granted Critical
Publication of EP0505269B1 publication Critical patent/EP0505269B1/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
    • G21F5/00—Transportable or portable shielded containers
    • 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
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/06—Details of, or accessories to, the containers
    • G21F5/12—Closures for containers; Sealing arrangements
    • 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

Definitions

  • the invention relates to a method and an installation designed for transferring products such as waste from a contaminated enclosure into a second relatively clean enclosure, without this transfer having the consequence of contaminating the second enclosure.
  • the invention applies in particular to the nuclear industry but can also be used in the chemical industry.
  • a transport container which is docked on the enclosure by means of a double door transfer device.
  • This well-known device makes it possible to successively dock the container on the enclosure, put the container in communication with the enclosure by opening a double door, in order to ensure the transfer of the products, the closing of this communication by replacing the double door, then separating the transport container, without at any time the surfaces called upon to be in contact with the external atmosphere are contaminated.
  • Document EP-A-0 187 558 illustrates a double door device for the sealed connection of two speakers.
  • Document EP-A-0 187 557 illustrates a transfer device with a sealed double barrier between a container and a confinement enclosure comprising two transfer systems with double doors.
  • the subject of the invention is precisely a method and an installation, the original design of which makes it possible to transfer products from a contaminated enclosure to a second enclosure which is relatively clean compared to this contaminated enclosure, without contaminating this second enclosure.
  • This process allows, by using a sealed triple door transfer system, to introduce the products to be transferred into a transfer pot whose interior is contaminated, to transport this transfer pot to the second enclosure at l inside a transport container which is never placed in communication with the first enclosure, then introduce the transfer pot containing the products into the second enclosure.
  • the tightness of the two enclosures with respect to the external atmosphere is preserved, as well as the tightness of the transport container with respect to the external atmosphere, and above all, the contaminated atmosphere present in the first enclosure and in the transfer pot is never in contact with the atmosphere present inside the transport container.
  • the reference 10 designates a part of the wall of a highly contaminated enclosure 12, in which there are products such as waste 14, which it is desired to transfer to a second relatively clean enclosure 16, part of the wall of which is illustrated at 18 in FIGS. 1E and 1F.
  • the wall 10 is in reality a thick wall comprising all the protections ⁇ , ⁇ and ⁇ imposed by the strong contamination present in cell 12, while wall 18 is a wall of reduced thickness essentially providing ⁇ protection.
  • the wall 10 of the contaminated enclosure 12 comprises at least one access system formed by a flange A, in which an annular adapter B, normally closed in a sealed manner, is normally received sealed by a door C.
  • the openings formed in the flange A and in the adapter B are coaxial.
  • the complementary access system of a transport container can be docked 20 on the access system to the contaminated enclosure 12 constituted by the flange A, the adapter B and the door C.
  • This complementary access system also comprises a flange D, in which an annular adapter E is received in leaktight manner, normally sealed by a door F.
  • the openings formed in the flange D and in the adapter E are coaxial and their average diameters are smaller than those of the openings formed in the flange A and in the adapter B.
  • docking of the access system to the transport container 20 on the access system to the contaminated enclosure 12 has the effect of connecting the flanges A and D and the adapters B and E, respectively, while releasing the adapter E from the flange D and the door F from the adapter E.
  • an empty transfer pot 22 which also includes an access system formed by a flange G in which a door H is normally received in sealed manner.
  • the average diameter of the opening formed in the flange G is less than that of the opening formed in the adapter E.
  • the door H is normally locked on the flange G of the transfer container 22 and docking means provided between the doors F and H are released.
  • the three doors C, H and B which are then linked to each other to form a triple door, are extracted inside the contaminated enclosure 12 by actuation of the connecting means which normally hold the door C tightly in the adapter B. Under these conditions, the contaminated enclosure 12 communicates with the interior of the transfer pot 22, so that the products 14 can be transferred to the latter.
  • the space formed in the container 20 around the transfer pot 22 remains however sealed in a sealed manner from the interior of the enclosure 12.
  • the triple door formed by the doors C, F and H connected together is then replaced.
  • the operating system carried by door C is then actuated again, from inside the contaminated enclosure 12, so as to separate the three doors C, F and H from one another and to lock door H again transfer pot 22 on its flange G.
  • the flange D of the transport container 20 of the flange A of the enclosure 12 is then disconnected and the adapter E of the adapter B. During this same movement, the adapter E is on the contrary locked on the flange D .
  • the container 20 can then be separated from the contaminated enclosure 12, which results in the reestablishment of the connection between the door F of the container and its adapter E.
  • the container 20 is then transported to the second enclosure 16 into which must be introduced the transfer pot 22 containing the products 14.
  • the second enclosure 16 is also equipped with at least one access system comprising a flange A ′, which has a circular opening of the same diameter as the opening formed in the flange A, and a door B′C ′ which normally closes this circular opening in a sealed manner.
  • the door B′C ′ can be made in one piece, as schematically illustrated in FIGS. 1E and 1F, or in two pieces in the form of an adapter and a door which are then identical to the adapter B and to the door C equipping the access system to the contaminated enclosure 12.
  • the transport container 20 is docked with the access system to the enclosure 16. This has the effect of connecting the flange D to the flange A ′ and of connecting the adapter E to the door B′C ′. This movement also has the effect of disconnecting the adapter E from the flange D.
  • the assembly formed by the door B′C ′ and by the door F and the adapter E can be extracted inside the enclosure 16 by connecting means which normally maintain the door B′C ′ in sealed support inside the flange A ′.
  • the transfer pot 22, closed by its door H can be extracted from the transport container 20 and transferred into the enclosure 16 without the contaminated atmosphere contained in the enclosure 12 being introduced into this pregnant 16.
  • an empty transfer container in the container 20 can be made from another enclosure specially provided for this purpose.
  • the container 20 is then disconnected from the enclosure 16 and can be used for a new transport of products between the enclosure 12 and the enclosure 16.
  • the flange A of the contaminated enclosure 12 internally delimits a circular opening 24, of frustoconical shape, the diameter of which increases towards the interior of the enclosure.
  • the adapter B carries an annular seal 26, of triangular cross section, one of the faces of which is normally in sealed abutment against the frustoconical surface of the opening 24 and the other face of which is oriented radially with respect to this opening and turned towards the outside of the enclosure 12.
  • This other face is designed to come into sealing abutment against the face of the adapter E turned towards the outside of the container 20, in the immediate vicinity of the outer peripheral edge of this adapter.
  • the adapter B also delimits a circular opening 28, of frustoconical shape, the diameter of which increases towards the inside of the contaminated enclosure 12.
  • a circular opening 28 of frustoconical shape, the diameter of which increases towards the inside of the contaminated enclosure 12.
  • Another face of the seal 30, oriented radially and turned towards the outside of the enclosure 12 comes into sealed contact against the surface of the door F turned towards the outside of the container 20, in the immediate vicinity of the peripheral edge from this door, when the container is docked on the enclosure.
  • the frustoconical shapes of the surfaces 24 and 28 make it possible to dismantle the adapter B and the door C towards the interior of the enclosure 12, while preventing reverse movement.
  • these connecting means comprise fingers 32 (only one of which is shown), mounted on the face of the adapter B facing towards the inside of the enclosure 12, and radially oriented. The end of each finger 32 successively passes through a slot 34, formed parallel to the axis of the opening 24 in a part 36 fixed on the inner face of the flange A, and a slot 38, in the form of a helix, formed in a rotary crown 40 also mounted on the flange A.
  • a rotation of the crown 40 controlled from inside the contaminated enclosure 12 has the effect of displacing the fingers 32 in the slots 34, as a result of the cooperation of these fingers 32 with the helical slots 38. This results in a tearing of the adapter B or, on the contrary, by sealingly pressing the latter against the opening 24, according to the direction of rotation of the crown 40.
  • Comparable connecting means are provided between the door C and the adapter B, as illustrated in particular in FIG. 3. These means, similar to those which have just been described, include fingers 42, fixed on the door C, which penetrate into slots 44 formed parallel to the axis of the opening 28 in a part 46 fixed on the adapter B and in helical slots (not shown) formed in a crown rotary 48, also supported by adapter B.
  • the flange A and the adapter B of the contaminated enclosure 12 comprise docking means 50 and 52 respectively, of the bayonet type , on their faces facing the outside of the enclosure.
  • the flange D comprises, on its face turned towards the outside of the container 20, bayonet docking means 54, designed to cooperate with the bayonet docking means 50 of the flange A, to form a connection system to bayonet.
  • the adapter E comprises, on its face facing the outside of the container 20, bayonet docking means 58, designed to cooperate with the bayonet docking means 52 of the adapter B, for form another bayonet connection system.
  • the door C is crossed in leaktight fashion along its axis by a rotary shaft section 60 capable of being driven in rotation, from inside the contaminated enclosure 12, by operating means such as a flywheel. or a lever (not shown) engaged on an operating square 61 (FIG. 5).
  • the rotation of this section of shaft 60 commands the use of a locking ball connection system 64 between the doors C and F.
  • the section shaft 60 has at least one groove in an arc of a circle 62 the bottom of which constitutes a cam surface allowing, depending on the angular position of the shaft section 60, to completely erase the locking balls 64 in a disconnected position doors C and F, or push them outward in a position of connection of these doors.
  • Each of the balls 64 is mounted in a circular hole radially passing through a tubular extension of the door C, formed around the section 60 outside the enclosure 12. When they occupy the connection position of the doors C and F, the locking balls 64 protrude beyond the outer surface of the above-mentioned tubular extension.
  • doors C and F When the doors C and F are placed side by side, the locking balls 64 are then behind a flange 66 formed in a bore 67 passing through the door F along its axis, at the end of this bore turned towards the outside of the transport container 20. Doors C and F are then linked to each other.
  • connection of the adapter E on the flange D of the container 20 is normally provided by a bayonet connection comprising bayonet docking means 68 formed inside the flange D and bayonet docking means 70 formed on the outer peripheral surface of the adapter E.
  • a relative rotation between the flange D and the adapter E therefore has the effect of securing these two parts.
  • This bayonet connection between the flange D and the adapter E is such that these two parts are automatically separated from one another, when the flange D and the adapter E are approached respectively on the flange A and on the adapter B by rotating the transport container 20.
  • the adapter E closes sealingly a circular opening 74 formed in the flange D, this opening 74 being of frustoconical shape and having a diameter which decreases towards the inside of the container 20.
  • the opening 74 is formed on one of the faces of a joint annular seal 72, of triangular section, mounted on the flange D. A radial face of this same seal 72 also comes into sealing abutment against the exterior surface of the flange A immediately surrounding the opening 24, when the flange D is approached on flange A.
  • the shape of the opening 24 in which the adapter B is received and the shape of the opening 74 in which the adapter E is received are such that these two openings form a single frustoconical surface when the flanges A and D are joined.
  • the diameter of this frustoconical surface decreases towards the outside of the enclosure 12, which allows the simultaneous disassembly of the adapters B and E towards the inside of the enclosure, while preventing their displacement in the opposite direction.
  • An annular seal 78 of triangular section, is also mounted on the adapter E, so that it has a frustoconical inner face defining the opening 76 and a radial face turned towards the outside of the container 20 and able to come into watertight support against an external surface of the adapter B located in the immediate vicinity of the opening 28, when the two adapters are docked.
  • the disconnectable link by which the door F is normally secured to the door E comprises several identical mechanisms, mounted in the door F and circumferentially distributed around the axis thereof. As illustrated in FIG. 5, each of these mechanisms comprises a pusher 80 mounted to slide in a blind bore 82 formed in the door F parallel to its axis and opening onto the face of this door turned towards the outside of the container.
  • a spring 84 resting on the bottom of the blind bore 82, normally maintains the pusher 80 in a position such that its opposite end protrudes beyond the outside face of the door F. This position is determined by the coming resting on a shoulder formed on the pusher 80 against an abutment surface 86 formed in the bore 82.
  • a sealing bellows 88 the ends of which are mounted respectively on the pusher 80 and on the surface 86, ensures confinement from inside the bore 82 with respect to the outside.
  • the mechanism illustrated in FIG. 5 is completed by a locking finger 90 slidably housed in a circular hole radially passing through the door F and causing the bore 82 to communicate with the frustoconical peripheral surface of this door.
  • this pusher 80 When the pusher 80 is in its projecting position described above, a large diameter portion of this pusher is located opposite the locking finger 90, so that the latter is pushed radially outward. Its end then protrudes beyond the frustoconical peripheral surface of the door F, in an annular groove 92 formed in the internal peripheral surface of the adapter E, when the door F is inside this adapter.
  • the locking finger 90 is located opposite a part of smaller diameter of the pusher 80, so that this locking finger 90 disappears in the door F and no longer does protrusion on the frustoconical peripheral surface of this door.
  • the door F is thus automatically detached from the adapter E when the container 20 comes into contact with the enclosure 12.
  • the door F of the transport container 20 is also crossed in leaktight fashion along its axis by a section of rotary shaft 94 whose rotation makes it possible to control, according to the direction, the joining or the separation of the doors F and H.
  • This rotation is obtained using the operating means controlling the rotation of the shaft section 60, when the container 20 is approached on the enclosure 12.
  • the rotary shaft sections 60 and 94 then cooperate with one another by rotational connecting means constituted, for example, by a part 96, of polygonal section, of the shaft section 60, which projects outwards from the enclosure 12 and penetrates into a recess 98, of complementary section, formed on the face of the shaft section 94 facing outwards from the container 20.
  • the locking ball system 100 ensuring the joining and detaching of the doors F and H is moreover similar to the system making it possible to join and detach the doors C and F.
  • the locking balls 100 are received from sliding way in circular holes drilled radially in a tubular extension of the door F, projecting towards the inside of the container around the shaft section 94.
  • An arcuate groove 102 formed in line with each of these holes on the outer surface of the shaft section 94 and the bottom of which forms a cam surface allows, depending on the angular position of the shaft section 94, either to erase the balls 100 inside the holes, or to push them towards the 'outside.
  • the balls 100 protrude behind a flange 104 formed in a bore 105 axially passing through the door H, near the face of this door facing outwards from the transfer pot 22.
  • the door F of the transport container 20 supports an annular seal 106, of triangular section, of which an outer peripheral face is in leaktight support on the frustoconical surface formed by the opening 76 when the door F is placed in the adapter E.
  • the seal 106 also has a radial face intended to be in leaktight abutment against the surface of the door H facing outwards from the transfer pot 22, in the immediate vicinity of the periphery of this door, when doors F and H are pressed against each other.
  • the flange G of the transfer pot 22 also delimits a circular opening 108, the frustoconical shape of which extends that of the openings 28 and 76, so that the adjoining doors C, F and H can be removed simultaneously towards the interior of the enclosure 12 while their displacement in the opposite direction is impossible.
  • the circular opening 108 is formed at least in part on the inner peripheral face of a seal annular seal 110, of triangular cross section, mounted on the flange G.
  • This seal 110 also includes a radial surface capable of coming into sealing contact against a surface of the adapter E turned towards the interior of the container 20 and located in the immediate vicinity of the circular opening 76, when the flange G is applied against the adapter E.
  • the door H is also crossed in leaktight fashion along its axis by a section of rotary shaft 112 whose rotation makes it possible to control the connection and disconnection of the door H relative to the flange G
  • This rotation is controlled by the maneuvering means located in the contaminated enclosure 12, through the rotating shaft sections 60 and 94.
  • these means may include an extension 114, of polygonal section, of the shaft section 94, located at the end of this section facing the interior of the container 20.
  • This extension 114 is received in a recess 116, of cross section complementary to that of the extension 114, formed in the end of the shaft section 112 facing outwards from the transfer pot 22, when the doors F and H are joined.
  • the shaft section 112 is integral with a disc 117 terminated by a ring 118 at its periphery.
  • connection between the door H and the flange G is carried out in the same manner as the connections described above between the doors C and F and between the doors F and H. More specifically, this connection comprises a system with blocking balls 120. These 120 balls are received in circular holes formed radially in a tubular part of the door H projecting towards the inside of the transfer pot, in the flange G. Grooves in an arc of a circle 122 formed on the external surface of the ring 118 and whose funds form cam surfaces allow, depending on the angular position of the crown, either to erase the balls 120 inside their holes, or to place them projecting so that they enter a groove 124 formed in the flange G.
  • this system mainly comprises a helical compression spring 126, centered on the axis of the container and located in the immediate vicinity of the cylindrical wall of the latter.
  • This compression spring 126 is supported by one end on the bottom of the container 20 and by its opposite end on a flange formed on a sliding sleeve 128 housed in the annular space surrounding the transfer pot 22 inside the container 20.
  • the sliding sleeve 128 is normally held in abutment against a shoulder 130 formed on the flange G, so that the latter is normally pressed in a sealed manner against the adapter E of the container.
  • the adapter B seals the opening 24 of the flange A and the door C seals the opening 28 of the adapter B in a sealed manner. Furthermore, the locking balls 64 are in their retracted position. In addition, the parts A, B and C are indexed, so that they are immobilized in rotation with respect to each other. Finally, the shaft section 60 then occupies an indexed position in the door C.
  • the bayonet connection 68.70 between the adapter E and the flange D is locked, the door F is locked in the adapter E by the locking fingers 90 and the door H is locked in the flange G by the blocking balls 120.
  • the flange G and the door H of the transfer pot 22 are pressed in a sealed manner respectively against the adapter E and the door F of the container 20 by the spring 126.
  • the blocking balls 100 are then deleted, so that the doors F and H are not locked together.
  • the parts D, G and H are indexed, so that these parts are immobilized in rotation with respect to each other. The same is true for parts E and F.
  • the part 96 of the rotary shaft section 60 enters the recess 98 of the rotary shaft section 94. This penetration is made possible by the rotary indexing means (not shown) of the door F in the adapter E. It should be noted that the shaft sections 60, 94 and 112 remain immobilized in rotation relative to the door C, during the rotation of the container 20. However, the 30 ° rotations of the door F around the section 94 and 60 ° of the door H around the section 112 which result therefrom have no effect on the locking ball connections 100 and 120, which remain respectively unlocked and locked.
  • the container 20 can then be approached on the access system to the second enclosure 16.
  • This access system will not be described in detail, because it essentially has the same characteristics as the access system to the contaminated enclosure. 12, although it may be slightly simpler.
  • the flange A ′ of this access system to the second enclosure 16 is completely identical to the flange A of the contaminated enclosure, both with regard to the dimensional characteristics and with regard to the various systems mounted on this bridle.
  • These systems include a bayonet system 50 ′ identical to the system 50 of the flange A, on the outside face of the flange A ′ and, on the inside face of this flange, a tubular piece 36 ′ having slots 34 ′ parallel to the 'axis of the flange A, and a rotary actuating crown 40 ′, having helical slots (not shown).
  • the simplification of the access system to the second enclosure 16 relates to the door B′C ′, which can be produced in one piece instead of being made up of an adapter B and a door C as in the system d access to the contaminated enclosure 12.
  • This door B′C ′ has the same dimensions as the assembly formed by the door C and the adapter B of the access system to the enclosure 12.
  • this door B ′ C ′ is also equipped with fingers 32 ′ capable of penetrating into the slots 34 ′ and into the helical slots of the crown 40 ′, in order to fix the door B′C ′ on the flange A ′, or from the tear off.
  • the door B′C ′ is also equipped with bayonet connection means 52 ′, identical to the connection means 52 of the adapter B.
  • the door B′C ′ is a conventional door, that is to say we find neither the rotary shaft section 60, nor the locking balls 64.
  • the existing bayonet connection between door B′C ′ and adapter E simultaneously connects door F to door B′C ′, since the latter prevents escape to the outside of door F.
  • the rotation of the container 20 has the effect of securing the flanges D and A ′ and of securing the adapter E, and with it the door F of the door B′C ′.
  • the end of this rotation leads to the adapter E being separated from the flange D of the container 20.
  • the locking ball system 100 is then unlocked and the locking ball system 120 is locked, when the operator acts, from inside the enclosure 16, by remote control means, to turn the crown 40 ′, it tears off the door B′C ′ inside the enclosure 16, at the same time as the adapter E and the door F linked to this door B′C ′. Under these conditions, illustrated in FIG. 4, the transfer pot 22 containing the products 14 can be transferred into the enclosure 16, without any contamination being introduced therein.
  • the double door constituted by the door B′C ′, the adapter E and the door F is then replaced, then the transport container 20 is disconnected from the enclosure 16.
  • a pot empty transfer can be reintroduced into the container 20 either from the enclosure 16, or from another enclosure, in order to allow the transfer of other products inside this container, without contaminating the enclosure 16.
  • the invention is not limited to the embodiment which has just been described by way of example, but covers all its variants.
  • the docking means allowing the various flanges, adapters and doors to be connected together, as well as the connecting means by which the adapters can be locked in the flanges and the doors locked in the adapters can be different from the means which have been described.
  • the door B′C ′ of the second enclosure 16 can, in certain cases, be replaced by an adapter assembly B′-door C ′ identical to the adapter assembly B-door C.
  • the door C ′ Must be crossed by a rotary shaft section similar to the section 60, making it possible to connect the doors C ′ and F by means of a locking ball system similar to that which includes the balls 64.
  • the rotation exerted on the sections shaft coupled, after docking of the container on the enclosure 16, must then be such that it controls the attachment of the doors C ′ and F, without causing a change in state of the locking ball systems 100 and 120. This can be obtained by giving the grooves in an arc of these last two systems a greater angular length (for example, double) than that of the grooves of the locking ball system provided between the doors C ′ and F.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Closures For Containers (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)

Claims (7)

  1. Verfahren zum Umladen von Materialien aus einem verseuchten Raum (12) in einen zweiten Raum (16), ohne diesen letzteren zu verseuchen,
    dadurch gekennzeichnet, daß es darin besteht:
    - jeweils an einen Flansch (A), einen Adapter (B) und eine Tür (C), die ein Zugangssystem zu dem verseuchten Raum (12) bilden, einen Flansch (D) einen Adapter (E) und eine Tür (F) ankoppeln, die ein Zugangssystem bilden zu einem Transportbehälter (20), in dem ein leeres Umladegefäß (22) untergebracht ist, bei dem ein Flansch (G) und eine Tür (H), die ein Zugangssystem zu diesem Umladegefäß bilden, sich jeweils abstützen auf dem Adapter (E) und auf der Tür (F) des Transportbehälters (20);
    - die drei gekoppelten Türen (C,F,H) in den verseuchten Raum (12) herausziehen, um das Umladegefäßes (22) mit diesem letzteren zu verbinden;
    - Einführen der umzuladenden Materialien in das Umladegefäß (22);
    - die drei gekoppelten Türen (C,F,H) wieder schließen;
    - jeweils den Flansch (D), den Adapter (E) und die Tür (F) des Transportbehälters (20) vom Flansch (A) lösen und den Adapter (B) und die Tür (C) von dem verseuchten Raum;
    - den Transportbehälter (20), in dem das Umladegefäß (22) untergebracht ist, das die umzuladenden Materialien enthält, zum zweiten Raum transportieren;
    - jeweils an einen Flansch (A′) und eine Tür (B′,C′), die ein Zugangssystem zu einem zweiten Raum (16) bilden, den Flansch (D) und den Adapter (E) des Transportbehälters ankoppeln;
    - in den zweiten Raum einen Aufbau herausziehen, der gebildet wird durch die Tür (B′C′) des zweiten Raums und den Adapter (E) und die Tür (F) des Transportbehälters, um den zweiten Raum mit diesem letzteren zu verbinden;
    - das Umladegefäß (22), das die umzuladenden Materialien enthält, in den zweiten Raum einführen;
    - den genannten Aufbau wieder anbringen; und
    - jeweils den Flansch (D) und den Adapter (E) des Transportbehälters von dem Flansch (A′) und von der Tür (B′C′) des zweiten Raums lösen.
  2. Anlage zum Umladen von Materialien aus einem verseuchten Raum (12) in einen zweiten Raum (16), ohne diesen letzteren zu verseuchen,
    dadurch gekennzeichnet, daß sie umfaßt:
    - ein Zugangssystem zu dem verseuchten Raum, umfassend einen ersten Flansch (A), einen ersten Adapter (B) und eine erste Tür (C), erste lösbare Verbindungseinrichtungen (32,40), um den ersten Adapter auf dichte Weise in einer Öffnung (24) des ersten Flansches zu halten, zweite lösbare Verbindungseinrichtungen (42,48), um die erste Tür (C) auf dichte Weise in einer Öffnung (28) des ersten Adapters zu halten, und erste Ankopplungseinrichtung (50,52,64), vorgesehen auf einer Außenfläche des ersten Flansches, des ersten Adapters und der ersten Tür;
    - ein Zugangssystem zum zweiten Raum, umfassend einen zweiten Flansch (A′) und eine zweite Tür (B′c′); dritte lösbare Verbindungseinrichtungen (32′,40′), um die zweite Tür auf dichte Weise in einer Öffnung des zweiten Flansches zu halten; und zweite Ankopplungseinrichtungen (50′,52′), vorgesehen an einer Außenfläche des zweiten Flansches und der zweiten Tür;
    - einen Transportbehälter (20);
    - einen Umladebehälter (22), der im Transportbehälter untergebracht werden kann;
    - ein Zugangssystem zum Transportbehälter, umfassend einen dritten Flansch (D), einen zweiten Adapter (E) und eine dritte Tür (F); vierte lösbare Verbindungseinrichtungen (68,70), um den zweiten Adapter (E) auf dichte Weise in einer Öffnung des dritten Flansches (D) zu halten; fünfte lösbare Verbindungseinrichtungen (90,92), um die dritte Tür (F) in einer Öffnung des zweiten Adapters zu halten; dritte Ankopplungseinrichtungen (54,58,66), vorgesehen an einer Außenfläche des dritten Flansches, des zweiten Adapters und der dritten Tür, geeignet, zusammenzuwirken mit den ersten Ankopplungseinrichtungen und mit den zweiten Ankopplungseinrichtungen; vierte Ankopplungseinrichtungen (100), vorgesehen an einer Innenfläche der dritten Tür;
    - ein Zugangssystem zum Umladegefäß, umfassend einen Flansch (G) und eine vierte Tür (H); sechste lösbare Verbindungseinrichtungen (120,124), um die vierte Tür auf dichte Weise in einer Öffnung des vierten Flansches (G) zu halten; fünfte Ankopplungseinrichtungen (104), vorgesehen an einer Außenfläche der vierten Tür, die zusammenwirken mit den vierten Ankopplungseinrichtungen; und
    - Anpreßeinrichtungen (126), um eine Außenfläche des vierten Flansches (G) auf dichte Weise gegen eine Innenfläche des zweiten Adapters zu drücken, wenn sich das Umladegefäß in diesem letzteren befindet.
  3. Anlage nach Anspruch 2, dadurch gekennzeichnet, daß die dritten Ankopplungseinrichtungen (54,58), vorgesehen an dem dritten Flansch (D) und an dem zweiten Adapter (E), mit den ersten Ankopplungseinrlchtungen (50,52), vorgesehen an dem ersten Flansch (A) und an dem ersten Adapter (B), und mit den zweiten Ankopplungseinrichtungen (50′,52′), vorgesehen an dem zweiten Flansch (A′) und an der zweiten Tür (B′,C′), erste Bajonettverschluß-Verbindungseinrichtungen bilden.
  4. Anlage nach einem der Ansprüche 2 und 3, dadurch gekennzeichnet, daß die fünften lösbaren Verbindungseinrichtungen wenigstens einen Verriegelungsfinger (90) umfassen, radial verschiebbar in der dritten Tür (F) zwischen einer normalen Verriegelungsstellung, erreicht durch die Wirkung von elastischen Einrichtungen (84), in der der Verriegelungsfinger vorsteht in eine Aussparung (92) des zweiten Adapters (E), und einer entriegelten Stellung, die erreicht wird, wenn die dritte Tür (F) auf der ersten Tür (C) oder auf der zweiten Tür (B′,C′) zur Auflage kommt.
  5. Anlage nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die ersten Ankopplungseinrichtungen, vorgesehen an der ersten Tür (C), ein erstes Kugel-Blockiersystem (64) - gesteuert durch ein erstes Drehachsenteilstück (60) - umfassen, das die erste Tür auf dichte Weise durchquert und dessen Blockierkugeln eindringen können hinter einen Kragen (66) der dritten Tür (F), um die dritten Ankopplungseinrichtungen zu bilden; dadurch, daß die vierten Ankopplungseinrichtungen ein zweites Kugel-Blockiersystem (100) - gesteuert durch ein zweites Drehachsenteilstück (94) - umfassen, das auf dichte Weise die dritte Tür (F) durchquert und dessen Blockierkugeln eindringen können hinter einen Kragen (104) der vierten Tür (H), um die fünften Ankopplungseinrichtungen zu bilden; dadurch, daß die sechsten lösbaren Verbindungseinrichtungen ein drittes Kugel-Blockiersystem (120) umfassen, eingebaut in die vierte Tür (H), gesteuert durch ein drittes Drehachsenteilstück (112), das auf dichte Weise die vierte Tür durchquert und dessen Blockierkugeln eindringen können in eine Hohlkehle (124) des vierten Flansches (G); alle Drehachsenteilstücke (60,100,120) können über Drehverbindungseinrichtungen (96,98,114,116) zusammenwirken, wenn die Türen, die sie tragen, gekoppelt sind.
  6. Anlage nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die ersten, zweiten und dritten lösbaren Verbindungseinrichtungen Freisetzungseinrichtungen (32,40,32′40′) umfassen, erreichbar vom Innern der Räume (12,16).
  7. Anlage nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß die Anpreßeinrichtungen zweite elastische Einrichtungen (126) umfassen, eingebaut in den Transportbehälter (20), auf denen sich das Umladegefäß (22) abstützt, wenn es sich in dem Behälter befindet.
EP92400718A 1991-03-20 1992-03-18 Verfahren und Anlage zum Umladen von Materialien von einem verseuchten Raum in einen zweiten Raum, ohne diesen zu verseuchen Expired - Lifetime EP0505269B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9103390A FR2674225B1 (fr) 1991-03-20 1991-03-20 Procede et installation pour transferer des produits d'une enceinte contaminee dans une deuxieme enceinte, sans contaminer cette derniere.
FR9103390 1991-03-20

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EP0505269A1 EP0505269A1 (de) 1992-09-23
EP0505269B1 true EP0505269B1 (de) 1995-06-28

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FR2674225A1 (fr) 1992-09-25
DE69203121T2 (de) 1996-02-29
US5226781A (en) 1993-07-13
EP0505269A1 (de) 1992-09-23
DE69203121D1 (de) 1995-08-03
FR2674225B1 (fr) 1993-07-16
JPH05288894A (ja) 1993-11-05
JP3090532B2 (ja) 2000-09-25

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