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EP0742562A1 - 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
EP0742562A1
EP0742562A1 EP96401010A EP96401010A EP0742562A1 EP 0742562 A1 EP0742562 A1 EP 0742562A1 EP 96401010 A EP96401010 A EP 96401010A EP 96401010 A EP96401010 A EP 96401010A EP 0742562 A1 EP0742562 A1 EP 0742562A1
Authority
EP
European Patent Office
Prior art keywords
cell
wall
guide tube
sheath
seal
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
EP96401010A
Other languages
English (en)
French (fr)
Other versions
EP0742562B1 (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
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 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 sealed cell used for work in a high activity atmosphere for example for the transfer of waste or small irradiated tools through the wall, and in particular the installation of '' a waterproof crossing.
  • This implantation must be able to take place after the cell is put into service, that is to say when the inside of the cell is already contaminated.
  • the cell has an inner wall, called “skin", made of stainless steel sheet. Its function is to confine 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 of seal between the equipment implanted in the wall with the cell wall and in particular the skin.
  • a solution is currently used making it possible to obtain a seal of the mechanical crossing through the wall of the cell with the skin, but this solution is not very reliable. It also consists in carrying out a welding of the sleeve of the mechanical crossing on the skin of the cell.
  • the production of a weld bead is possible inside the cell between the skin and the sheath, but that the control of this bead is delicate, given that it is located on the contaminated side. of the cell. It is added that this cord is produced by a rotating machine inserted into the sheath.
  • the implementation of the process proves to be delicate, a recovery being necessary to complete the welding operation.
  • this solution cannot be applied to mechanical bushings whose diameters are smaller than the capacity of the welding machine.
  • the object of the invention is therefore to remedy this drawback by proposing another method of installing a sealed crossing in the wall of a cell in which work is carried out with a high degree of contamination.
  • ventilation from the outside to the inside of the cell is applied to the crossing to overcome any possible leakage of contaminated air from the inside to the outside of the cell.
  • it comprises a first seal placed in a groove on the external 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 of a cell whose interior is referenced 1 and the exterior is referenced 2.
  • the sealed 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 interior side 1 of the cell.
  • This skin 4 is a sheet of stainless steel covering the internal wall of the cell for the purpose of high-efficiency sealing.
  • a sealing bell 5 is fixed on the skin 4 opposite the passage. This sealing bell 5 is placed before, at the time of the development of a passage through the wall 3 and the skin 4 of the cell, inside the latter. It is fixed on the skin 4 opposite a passage.
  • the first main operation of the method according to the invention is the establishment of a sheath 6 of tubular shape in the passage. It is noted that this passage has an inside diameter equal to the outside diameter of the sleeve 6.
  • the hole in which this sleeve 6 is placed is widened on the outside side 2 of the cell so as to be able to place there, around the sleeve 6, a protection biological 7 necessary for nuclear installations and made of lead beads.
  • 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 the wall 3. On the outer side 2 of the cell, the sheath 6 is welded to a base plate 9 placed against the external face 8 of the wall 3. This base plate 9 also makes it possible to contain the biological protection 7. It is moreover provided with two access orifices 19 for the lead balls.
  • the sleeve 6 therefore makes it possible to provide a cylindrical passage through the wall 3 of the cell. We add that it is preferable to perfectly adjust the perpendicularity of this sleeve 6 with respect to the base plate 9 placed against the wall 3.
  • the mounting of the base plate 9 is done after the complete positioning and the perpendicular adjustment of the sleeve 6 in the wall 3.
  • Anchors 10 penetrating into the exterior surface 8 of the wall 3 can be used for fixing the base plate. of the cell.
  • a fourth essential step of the method according to the invention consists in mounting in the sheath 6 a guide tube 11 whose outside diameter is slightly less than the inside diameter of the sheath 6. To position it on the outside side 2 of the cell, a flange 12, of annular shape and placed inside the sheath 6, but outside this guide tube 11. It therefore ensures concentricity between these two tubular elements that are the sheath 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 sealed crossing door 13 which has the subsequent function of allowing material to pass from the interior 1 of the cell to the interior of 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 mounting of this double door 13 on the guide tube 11 by a thread 16 and a sealing weld 16A.
  • This double door carries a central tube 20 intended to ensure the transfer of materials or containers of small dimensions.
  • 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 inside 1 of the cell.
  • the next step consists in mounting a seal carrier ring 15 from the interior 1 of the cell by remote manipulation on the outside diameter of the interior end of the guide tube 11 located inside the cell.
  • the function of this seal carrier ring 15 is to ensure sealing between the interior 1 of the cell and the annular space 17 existing between the sheath 6 and the guide tube 11.
  • FIG. 2 also shows in detail the mounting 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.
  • a first seal 21 is placed in a groove of the latter. This first seal 21 seals between the guide tube 11 and the sleeve 6.
  • a second seal 22 is placed just outside the skin 4, opposite the seal carrier ring 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 wall 3 existing between the guide tube 11 and the sheath 6.
  • This second seal 22 is completed with a third seal 23 placed in a groove on the internal diameter of the crown seal holder 15 and being supported on the external diameter of the guide tube 11.
  • the locking of the captive nuts 18 seals the crown 15 with the guide tube 11, while the pulling effect carried out to press the metal crown 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 of the watertight bushing according to the invention is held in place by means of support screws 24 and clamping screws 14.
  • a traction tool (not shown) mainly composed of a hydraulic cylinder bearing both on the base plate 9 and on the support flange 12.
  • the support screws 24 can be tightened in the flange support 12 to come to bear against the base plate 9, so as to hold in place the whole of the sealed bushing and to compress the second seal 22 as much as possible.
  • the tensioning tool can then be removed.
  • the second seal 22 can be glued and that its material can be that referenced 7EP42 (nuclear).
  • the maximum crushing force for this type of joint is 1,500 daN.
  • the effectiveness of the assembly can be tested by a test.
  • two tubes 26A and 26B are placed inside the annular space between the sleeve 6 and the guide tube 11 and are connected to the outside.
  • the tube 26B is located directly behind the flange 12.
  • the test consists in filling, by means of the tube 26B, the space trapped by the guide tube and the seal carrier ring 15 with a neutral gas (nitrogen, argon. .) at a certain pressure and check, using a pressure gauge mounted at the end of the lateral outlet of the tube 26A, whether the pressure drops after a time defined previously.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Manipulator (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
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
FR9505653 1995-05-12
FR9505653A FR2734078B1 (fr) 1995-05-12 1995-05-12 Procede d'installation d'une traversee etanche dans le mur d'une cellule

Publications (2)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940818A1 (de) * 1998-02-10 1999-09-08 Japan Nuclear Cycle Development Institute Adapter für luftdichte Durchführung
WO2002017332A1 (en) * 2000-08-18 2002-02-28 Glaxosmithkline Biologicals S.A. System for providing communication between the interior and the exterior of a compartment
EP3059014A1 (de) * 2015-02-23 2016-08-24 Aseptic Technologies S.A. Verbindungselement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD144683A1 (de) * 1979-06-29 1980-10-29 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
DE8709361U1 (de) * 1986-07-08 1987-09-10 Commissariat à l'Energie Atomique, Paris Schneidwerkzeug zum Herstellen einer Durchbohrung in einer mit Stahl bewehrten Betonwand
DE3843311A1 (de) * 1988-12-22 1990-06-28 Wiederaufarbeitung Von Kernbre Strahlenundurchlaessige verbindung

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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
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD144683A1 (de) * 1979-06-29 1980-10-29 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
DE8709361U1 (de) * 1986-07-08 1987-09-10 Commissariat à l'Energie Atomique, Paris Schneidwerkzeug zum Herstellen einer Durchbohrung in einer mit Stahl bewehrten Betonwand
DE3843311A1 (de) * 1988-12-22 1990-06-28 Wiederaufarbeitung Von Kernbre Strahlenundurchlaessige verbindung

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940818A1 (de) * 1998-02-10 1999-09-08 Japan Nuclear Cycle Development Institute Adapter für luftdichte Durchführung
US6296256B1 (en) 1998-02-10 2001-10-02 Japan Nuclear Cycle Development Institute Airtight adapter and a replacement method therefor
WO2002017332A1 (en) * 2000-08-18 2002-02-28 Glaxosmithkline Biologicals S.A. System for providing communication between the interior and the exterior of a compartment
US7192065B2 (en) 2000-08-18 2007-03-20 Smithkline Beecham Biologicals S.A. System for providing communication between the interior and the exterior of a compartment
US7431352B2 (en) 2000-08-18 2008-10-07 Glaxosmithkline Biologicals S.A. System for providing communication between the interior and the exterior of a compartment
KR100886638B1 (ko) * 2000-08-18 2009-03-04 아스펙틱 테크놀러지스 소시에테 어나니머스 구획실의 외부와 내부 사이를 연결하기 위한 시스템
CZ301748B6 (cs) * 2000-08-18 2010-06-09 Aseptic Technologies S.A. Systém pro spojení vnitrku komory s vnejškem komory, spojovací teleso, kryt a jejich kombinace pro tento systém a zpusob prenosu materiálu mezi vnitrkem a vnejškem komory
EP3059014A1 (de) * 2015-02-23 2016-08-24 Aseptic Technologies S.A. Verbindungselement
BE1022762B1 (fr) * 2015-02-23 2016-08-30 Aseptic Technologies Sa Elément de connexion
US10413480B2 (en) 2015-02-23 2019-09-17 Aseptic Technologies S.A. Connecting member
TWI687216B (zh) * 2015-02-23 2020-03-11 比利時商艾斯提克科技公司 連接構件

Also Published As

Publication number Publication date
US5725331A (en) 1998-03-10
FR2734078B1 (fr) 1997-06-13
DE69601895T2 (de) 1999-09-30
JPH08304590A (ja) 1996-11-22
DE69601895D1 (de) 1999-05-06
EP0742562B1 (de) 1999-03-31
FR2734078A1 (fr) 1996-11-15

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