EP0742562B1 - Verfahren zum Einbauen einer abgedichteten Durchführung durch eine Zellenwand - Google Patents

Verfahren zum Einbauen einer abgedichteten Durchführung durch eine Zellenwand Download PDF

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Publication number
EP0742562B1
EP0742562B1 EP96401010A EP96401010A EP0742562B1 EP 0742562 B1 EP0742562 B1 EP 0742562B1 EP 96401010 A EP96401010 A EP 96401010A EP 96401010 A EP96401010 A EP 96401010A EP 0742562 B1 EP0742562 B1 EP 0742562B1
Authority
EP
European Patent Office
Prior art keywords
cell
sleeve
wall
guide tube
interior
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
EP96401010A
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English (en)
French (fr)
Other versions
EP0742562A1 (de
Inventor
Jacques Martinez
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 CEA
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Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of EP0742562A1 publication Critical patent/EP0742562A1/de
Application granted granted Critical
Publication of EP0742562B1 publication Critical patent/EP0742562B1/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
    • G21F7/005—Shielded passages through walls; Locks; Transferring devices between rooms

Definitions

  • the invention relates to the installation of equipment in the wall of a waterproof cell used for work in high activity atmosphere for example for transfer waste or small tools irradiated through the wall, and in particular the establishment of a watertight crossing. This installation must be possible after commissioning of the cell, i.e. when the interior of the cell is already contaminated.
  • the cell has a wall inner, called “skin", made of stainless steel sheet. She has the function of confining the contaminated atmosphere of the cell and also to prevent outside air from entering it.
  • the technical problem which then arises is obtaining a very high level sealing between the installed equipment in the wall with the cell wall and in particular the skin.
  • the object of the invention is therefore to remedy this disadvantage by proposing another installation method of a waterproof crossing in the wall of a cell in which are carried out work with a high degree of contamination.
  • Ventilation from outside to inside of the cell is applied to the crossing to overcome possible leakage of contaminated air from the interior to outside the cell.
  • it includes a first seal placed in a groove on the outer surface of the guide tube and being in abutment against the internal surface of the sheath.
  • Figure 1 shows a cross section of the wall a cell whose interior is referenced 1 and the exterior is referenced 2.
  • the waterproof crossing according to the invention, is therefore placed so as to cross this wall 3.
  • a skin 4 covers the internal surface of the wall 3, on the side of inside 1 of the cell.
  • This skin 4 is a sheet of stainless steel covering the inner wall of the cell for high efficiency sealing.
  • sealing bell 5 is fixed on the skin 4 opposite the passage. This sealing bell 5 is placed before, when developing a passage through the wall 3 and the skin 4 of the cell, inside of it. She is fixed on the skin 4 opposite a passage.
  • the first main operation of the process according to the invention is the installation of a shaped sheath 6 tubular in the passage.
  • this passage has a inner diameter equal to the outer diameter of the sleeve 6.
  • the hole in which this sheath 6 is placed is widened by side of the outside 2 of the cell to be able to place there, around the sheath 6, biological protection 7 necessary for nuclear installations and consisting of balls of lead.
  • the sheath 6 On the interior side 1 of the cell, the sheath 6 is placed in abutment on the surface of the skin 4 which is facing wall 3.
  • the sleeve 6 On the exterior side 2 of the cell, the sleeve 6 is welded to a base plate 9 placed against the external face 8 of the wall 3. This base plate 9 allows also contain biological protection 7. It is moreover provided with two access holes 19 for the balls lead.
  • the sleeve 6 therefore makes it possible to provide a passage cylindrical through the wall 3 of the cell. We add that is better to perfectly adjust the perpendicularity of this sleeve 6 relative to the base plate 9 placed against the wall 3.
  • the mounting of the base plate 9 is done after the complete positioning and perpendicular adjustment of the sleeve 6 in the wall 3.
  • a fourth essential step in the process according to the invention consists in mounting in the sheath 6 a guide tube 11 whose outside diameter is slightly less than the inner diameter of the sleeve 6.
  • a flange 12 of annular shape and placed inside the sheath 6, but outside of this guide tube 11. It therefore ensures concentricity between these two elements tubes that are the sleeve 6 and the guide tube 11. It is then welded to the latter and also fixed to the base plate 9, for example by means of screws 14.
  • the guide tube 11 On the interior side 1 of the cell, the guide tube 11 carries a double crossing door waterproof 13 which has the subsequent function of allowing the passage of material from inside 1 of the cell to inside the guide tube 11.
  • This double door 13 is introduced at the same time as the guide tube 11, because it is mounted on the latter beforehand.
  • FIG. 2 shows the assembly of this double door 13 on the guide tube 11 by a thread 16 and a sealing weld 16A.
  • This double door is load-bearing a central tube 20 intended to ensure the transfer of materials or small containers.
  • the process continues with the removal of the sealing bell 5 which remains inside 1 of the cell. It is dismantled by a remote manipulator placed at inside 1 of the cell.
  • the next step is to mount a crown seal holder 15 from inside the cell 1 by remote handling on the outside diameter of the end inside of the guide tube 11 located inside the cell.
  • the function of this seal carrier ring 15 is sealing between the interior 1 of the cell and the annular space 17 subsisting between the sheath 6 and the guide tube 11.
  • Figure 2 also shows in detail the assembly of such a seal carrier ring 15.
  • This seal carrier ring 15 is made by means of several captive nuts 18 actuated by a remote manipulator from inside the cell 1.
  • first seal 21 On the outside diameter of the guide tube 11, is placed a first seal 21 in a groove thereof. This first seal 21 seals between the guide tube 11 and the sleeve 6.
  • a second seal 22 is placed just outside of the skin 4, opposite the seal carrier crown 15. It seals between the skin 4 and the guide tube 11, that is to say between the interior 1 of the cell and the space 28 located between the skin 4 and the internal face of the existing wall 3 between the guide tube 11 and the sleeve 6.
  • This second seal 22 is completed with a third seal 23 placed in a groove lying on the internal diameter of the crown seal holder 15 and being supported on the external diameter of the guide tube 11.
  • Locking the captive nuts 18 ensures the sealing of the crown 15 with the guide tube 11, while that the pulling carried out to press the crown metallic 15 on the skin of the cell makes it possible to obtain, when the metal contact is made, the crushing of the seal 22 with a force which ensures sealing.
  • the whole watertight bushing according to the invention is held in place by means of support screws 24 and clamping screws 14.
  • a tool is used for this purpose traction (not shown) composed mainly a hydraulic cylinder bearing both on the plate base 9 and on the support flange 12. Indeed, by pulling the latter towards the outside 2 of the cell, the screws support 24 can be clamped in the support flange 12 to come to rest against the base plate 9, so that hold in place the entire watertight bushing and compress the second joint as much as possible 22. Once the adequate tightening, tightening screws 14 are tight in base plate 9 and the entire bushing waterproof is then fixed.
  • the pulling tool can then be disassembled.
  • the second seal 22 can be glued and that its material can be that referenced 7EP42 (nuclear).
  • the maximum crushing effort for this type of joint is 1,500 daN.
  • the effectiveness of the assembly can be the test by a test. Indeed, in order to ensure the good tightness of the assembled assembly (guide tube, container, seal ring), two tubes 26A and 26B are placed at inside the annular space between the sleeve 6 and the guide tube 11 and are connected to the outside. The 26B tube is located directly behind the flange 12.
  • the test consists of fill the trapped space through the tube 26B by the guide tube and the seal carrier ring 15 of a gas neutral (nitrogen, argon ...) at a certain pressure and check thanks to a pressure gauge mounted at the end of the outlet side of tube 26A if the pressure drops after a while defined before.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Manipulator (AREA)

Claims (7)

  1. Verfahren zum Einbauen einer abgedichteten Durchführung in die Wand (3) einer dichten Zelle, wobei letztere umfaßt:
    eine dicke Wand (3);
    eine Metallhaut (4) auf der Innenseite der Wand (3);
    einen Durchgang durch die Wand (3) und die Metallhaut (4); und - eine Abdichtglocke (5), im Innern (1) der Zelle auf der Metallhaut (4) angebracht, um den Durchgang herum,
    wobei das Verfahren die folgenden sukzessiven Schritte umfaßt:
    a) Anbringen einer Hülse (6) in dem Durchgang;
    b) Herstellen der senkrechten Stellung der Hülse (6) in bezug auf die Außenseite der Wand (3);
    c) Montieren einer Grundplatte (9) auf die Außenseite (8) der Wand (3) der Zelle;
    d) Festschweißen der Hülse (6) auf der Grundplatte (9);
    e) Anbringen eines Führungsrohrs (11) in der Hülse (6), das gegenüber der Zelleninnenseite mit einer abdichtenden Doppeltür (13) ausgestattetet ist, die sich unter der Abdichtglocke (5) befindet;
    f) Entfernen der Abdichtglocke (5);
    g) Montieren eines Dichtungsträgerrings (15) von der Innenseite der Zelle aus, um die Zelle von der Außenseite (2) in Höhe des Führungsrohrs (11) und der Hülse (6) zu isolieren.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß es die beiden folgenden, zusätzlichen Schritte umfaßt:
    h) Festschrauben des Dichtungsträgerrings (15) mittels unverlierbarer Schrauben (18); und
    i) Festspannen der gesamten Durchführung an der Zelle bzw. der Zellenwand.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß es einen zusätzlichen Schritt der Entlüftung in Richtung Außenseite (2), Innenseite (1) der Zelle während der fünften f) und sechsten g) Operation umfaßt, die jeweils dem Entfernen der Abdichtglocke (5) und dem Montieren des Dichtungsträgerrings (15) entspricht.
  4. Abgedichtete Durchführung durch die Wand (3) einer hochradioaktiven Zelle, umfassend:
    eine rohrförmige Hülse (6);
    ein im Innern der Hülse (6) angebrachtes Führungsrohr (11);
    eine im Innern der Hülse (6) angebrachte Abdichtdoppeltür (13), angebracht an einem ersten Ende der Hülse (6) und des Führungsrohrs (11), zwischen diesen beiden Elementen (6 und 11);
    einen Dichtungsträgerflansch (15), angebracht am ersten Ende der Hülse (6) und des Führungsrohrs (11), der sich auf der Innenseite der Metallhaut (4) abstützt, die die Innenseite der Zelle bedeckt, wobei wenigstens eine zweite Dichtung (22) gegen das erste Ende der Hülse (6) und die Außenwand des Führungsrohrs (11) gepreßt wird.
  5. Abdichtende Durchführung nach Anspruch 4, dadurch gekennzeichnet, daß sie eine erste Dichtung (21) umfaßt, die in einer Nut in der Außenfläche des Führungsrohrs (11) sitzt und gegen die Innenoberfläche der Hülse (6) gepreßt wird.
  6. Abdichtende Durchführung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß sie eine dritte Dichtung (23) umfaßt, die in einer Nut in der Innenseite des Dichtungsträgerflansches (15) sitzt und gegen die Außenoberfläche des Führungsrohrs (11) gepreßt wird.
  7. Abdichtende Durchführung nach Anspruch 4, dadurch gekennzeichnet, daß sie zwei Rohre bzw. Röhren (26A, 26B) umfaßt, angebracht zwischen der Hülse (6) und dem Führungsrohr (11) und mit der Außenseite verbunden, um die Dichtheit der Durchführung zu testen.
EP96401010A 1995-05-12 1996-05-10 Verfahren zum Einbauen einer abgedichteten Durchführung durch eine Zellenwand Expired - Lifetime EP0742562B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9505653A FR2734078B1 (fr) 1995-05-12 1995-05-12 Procede d'installation d'une traversee etanche dans le mur d'une cellule
FR9505653 1995-05-12

Publications (2)

Publication Number Publication Date
EP0742562A1 EP0742562A1 (de) 1996-11-13
EP0742562B1 true EP0742562B1 (de) 1999-03-31

Family

ID=9478921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96401010A Expired - Lifetime EP0742562B1 (de) 1995-05-12 1996-05-10 Verfahren zum Einbauen einer abgedichteten Durchführung durch eine Zellenwand

Country Status (5)

Country Link
US (1) US5725331A (de)
EP (1) EP0742562B1 (de)
JP (1) JPH08304590A (de)
DE (1) DE69601895T2 (de)
FR (1) FR2734078B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3002966B2 (ja) * 1998-02-10 2000-01-24 第一電子工業株式会社 気密アダプタ及びその交換方法
GB0020272D0 (en) 2000-08-18 2000-10-04 Smithkline Beecham Biolog Novel device
US7797893B2 (en) * 2006-05-11 2010-09-21 Specified Technologies Inc. Apparatus for reinforcing and firestopping around a duct extending through a structural panel
DE202006011374U1 (de) * 2006-07-25 2006-09-21 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Wanddurchführung zum Durchführen einer Leitung durch eine Gebäudewandung
US9086174B2 (en) * 2013-03-15 2015-07-21 Securus, Inc. Extendable sleeve for poured concrete deck
BE1022762B1 (fr) * 2015-02-23 2016-08-30 Aseptic Technologies Sa Elément de connexion
BE1023860B1 (fr) * 2016-02-18 2017-08-22 Aseptic Technologies S.A. Système de connexion
CN108303723A (zh) * 2018-04-16 2018-07-20 广东省建筑工程机械施工有限公司 一种热室剂量探测器套管结构

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125358A (en) * 1964-03-17 Building lead-in connection for a pipe
DE144683C (de) *
US1734966A (en) * 1922-03-23 1929-11-12 Pfaudler Co Inc Pipe connection for vessels
US2243356A (en) * 1939-08-14 1941-05-27 Taylor Instrument Co Sanitary fitting
US2348490A (en) * 1943-04-17 1944-05-09 Crane Co Flow control means
US2580802A (en) * 1948-03-29 1952-01-01 Peter H Lindberg Tank inlet and outlet seal
US2711841A (en) * 1951-01-25 1955-06-28 Basf Ag Corrosion-proof covers for pressure vessels
US2945705A (en) * 1957-09-20 1960-07-19 Victor S Murray Fitting for concrete slab
US3352756A (en) * 1964-04-07 1967-11-14 Arrangements for closing penetrations in the walls op reactor pressure containing structures
US3488067A (en) * 1967-09-12 1970-01-06 Gilbert Associates Air cooled pipe penetrations in concrete walls
US3707758A (en) * 1970-04-16 1973-01-02 Commissariat Energie Atomique Installation for mounting sealing rings and the like, especially for radioactive enclosures
US4028176A (en) * 1973-09-17 1977-06-07 Siemens Aktiengesellschaft Nuclear reactor installation
US4194948A (en) * 1977-11-14 1980-03-25 General Atomic Locking support for nuclear fuel assemblies
US4223740A (en) * 1978-05-10 1980-09-23 Clayton Maurice A Fire fighting nozzle units
DD144683B1 (de) * 1979-06-29 1983-06-08 Meinfried Kruegel Arbeitsoeffnung,insbesondere rohrdurchfuehrung in der wandung eines betontanks
DE3030030A1 (de) * 1980-08-08 1982-03-25 Hochtemperatur-Reaktorbau GmbH, 5000 Köln Durchfuehrung durch die wand eines spannbetondruckbehaelters
DE3042613A1 (de) * 1980-11-12 1982-06-16 Hochtemperatur-Reaktorbau GmbH, 5000 Köln Rohrdurchfuehrung fuer doppelrohre durch die wand eines spannbetondruckgehaelters bei kernreaktoren
FR2601282B1 (fr) * 1986-07-08 1990-07-27 Commissariat Energie Atomique Outil de coupe, et procede de creation d'une traversee calibree dans une paroi epaisse de beton comportant une armature metallique au moyen de cet outil.
DE3843311A1 (de) * 1988-12-22 1990-06-28 Wiederaufarbeitung Von Kernbre Strahlenundurchlaessige verbindung
US5456050A (en) * 1993-12-09 1995-10-10 Construction Consultants & Contractors, Inc. System to prevent spread of fire and smoke through wall-breaching utility holes

Also Published As

Publication number Publication date
DE69601895D1 (de) 1999-05-06
FR2734078B1 (fr) 1997-06-13
JPH08304590A (ja) 1996-11-22
FR2734078A1 (fr) 1996-11-15
DE69601895T2 (de) 1999-09-30
US5725331A (en) 1998-03-10
EP0742562A1 (de) 1996-11-13

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