WO2000019451A1 - Connecteur passe-paroi pour lignes d'alimentation - Google Patents

Connecteur passe-paroi pour lignes d'alimentation Download PDF

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Publication number
WO2000019451A1
WO2000019451A1 PCT/GB1999/003034 GB9903034W WO0019451A1 WO 2000019451 A1 WO2000019451 A1 WO 2000019451A1 GB 9903034 W GB9903034 W GB 9903034W WO 0019451 A1 WO0019451 A1 WO 0019451A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
wall
bore
connector
engage
Prior art date
Application number
PCT/GB1999/003034
Other languages
English (en)
Inventor
Jonathan Barlow
Original Assignee
British Nuclear Fuels Plc
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 British Nuclear Fuels Plc filed Critical British Nuclear Fuels Plc
Priority to AU62104/99A priority Critical patent/AU6210499A/en
Publication of WO2000019451A1 publication Critical patent/WO2000019451A1/fr

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/005—Shielded passages through walls; Locks; Transferring devices between rooms

Definitions

  • This invention concerns improvements in and relating to connections, particularly, but not exclusively for introducing supply lines into radioactive or other hazardous areas.
  • Water jet cutting is therefore proposed in the present invention to avoid the potentially present risk of fire from flammable atmospheres in such environments, for instance from hydrogen generation.
  • the invention is applicable to other hazardous environments too, including chemical hazards and biohazards .
  • Water jet cutting comprises focusing grit impregnated water through a nozzle on to the workpiece.
  • the water is supplied under ultra high pressure (UHP), being typically of the order of 4000 bar, producing a supersonic jet so as to affect cutting of the workpiece.
  • UHP ultra high pressure
  • Such operations require the supply of water, and / or water / grit and hydraulic control (for instance to move the cutting head) into the containment area from external sources .
  • the sources and equipment are employed externally to avoid contamination, however, they necessitate a suitable connector to allow passage into the containment area.
  • the present invention aims to provide a connector which is easy to connect and disconnect, is capable of operating under the applied conditions and does not impair the containment area's efficiency.
  • a through wall connector comprising a first component adapted to engage an aperture in the wall, the first component having a through bore, a second component which is inserted into the through bore of the first component from a first side of the wall and a third component which is adapted to engage with the second component from the second, other side of the wall, the second and third components being provided with a through bore.
  • the first component preferably comprises a cylindrical element.
  • the first component has a first reduced dimension portion and a second larger dimensioned portion, most preferably intended to cooperate with corresponding dimensions of the aperture in the wall.
  • the first and second dimensions may be defined by a stepped reduction in the dimension or by a tapering of the component.
  • the component may be provided with a flange adapted to engage an external surface of the wall.
  • the first component can only be inserted into or removed from the aperture in the wall from one side of the wall .
  • the through bore is provided about a common axis through out.
  • the bore may have a reduced dimension portion, most preferably intermediate the two sides of the wall.
  • the through bore has an enlarged dimension portion open to one side of the first component and more preferably a further enlarged dimension portion open to the other side of the first component.
  • a stepped reduction in dimension is provided between the wider portion(s) and the reduced dimension portion.
  • the through bore may be defined by one, two and preferably three right cylindrical bore portions.
  • the middle bore portion is of reduced dimension.
  • the enlarged dimension portion may be flared at its opening on one side.
  • the first component may be provided with one or more other through bores.
  • a through bore for conveying a feed of grit or other abrasive particles for a cutting operation may be provided.
  • a through bore for conveying an hydraulic or a pneumatic feed may be provided.
  • the first component is fixed in position relative to the wall, for instance by restraining against rotation .
  • the second component preferably comprises an elongate element.
  • at least a portion of the second component is dimensioned to be inserted into the through bore of the first component.
  • the second component in its position of use, extends into an enlarged dimensioned portion of the through bore of the first component, on the side away from the side of insertion.
  • the second component may extend beyond the wall on the side away from the side of insertion.
  • the elongate component is provided with a through bore.
  • the through bore is ideally provided on a single axis.
  • the bore is smooth and/or of consistent dimension throughout.
  • the elongate element is preferably provided with an externally mounted component.
  • the component extends from the first, insertion side of the wall, at least as far as the enlarged dimensioned portion of the through bore of the first component.
  • the elongate component is a right cylinder.
  • the mounted component is defined by one or more cylinders.
  • the component is defined by two right cylinders, a first adapted to be inserted in the first enlarged portion of the through bore, the second adapted to be inserted through the reduced dimensioned portion of the through bore of the first component.
  • an end portion of the elongate or mounted component of the second component is provided with engagement means for the third component, such as an external screw thread.
  • engagement means for the third component such as an external screw thread.
  • the portion provided with the engagement means is provided in the enlarged dimensioned portion, opposite to the side of insertion, in the assembled state.
  • the elongate component is received in a through bore of the mounted component.
  • the through bore of the mounted component is axially aligned with the through bore of the elongate component.
  • the mounted component of the second component is free to rotate relative to the elongate component of the second component.
  • the elongate component of the second component has an abutment surface provided at its end.
  • a conical end surface most preferably truncated due to the presence of the through bore, is provided.
  • the third component preferably comprises a portion adapted to cooperate with one side of the wall and a portion adapted to engage with the second component.
  • the portion adapted to cooperate with the wall is provided by a flange which abuts a surface of the wall in use .
  • the portion adapted to engage the second component is inserted into the first component in the assembled state.
  • at least part of the external configuration of the inserted portion corresponds to the internal configuration of at least part of the bore in the first component .
  • the inserted portion is provided with a bore, most preferably a through bore.
  • the bore preferably receives the portion of the second component provided with the engagement means.
  • at least a portion of the bore is provided with an internal screw thread.
  • the through bore is formed of a first enlarged portion and a second reduced dimension portion corresponding to the through bore of the second component.
  • the bore of the second and third components are axially aligned with one another .
  • a conical transition surface is provided between the first and second bore portions of the third component.
  • the transition surface forms the abutment surface for the end of the second component.
  • a truncated conical transition surface is provided.
  • the wall preferably comprises a containing surface for a radiologically active environment.
  • the environment may be a room, glove box, vessel, container or the like.
  • the wall may be of metal and/or plastics and/or masonry and/or include shielding materials.
  • the aperture in the wall may be cylindrical.
  • the dimension of the aperture is reduced at one end relative to at another part of the aperture.
  • One side of the wall may be within a radiologically or otherwise hazardous environment.
  • One side of the wall may be outside a radiologically or otherwise hazardous environment.
  • a method of connecting a supply line through a wall comprising providing a first component in an aperture in the wall, the first component having a through bore, inserting a second component into the through bore of the first component from a first side of the wall and engaging a third component with the second component from the second, other side of the wall, the second and third components being provided with a through bore and being connected to the supply line .
  • the second and third components are connected to one another by rotating one or both relative to the other.
  • a screw thread engagement is used.
  • the third component is held stationary and the second component is rotated .
  • the third component is preferably inserted into the first and the second component is then inserted through the first component and into the third.
  • the second component is formed of a central portion carrying a through bore and an external element, the external element being connected to the third component by rotating it relative to the third component, the central portion not being rotated.
  • the central portion of the second component and the third component abut one another, most preferably at a metal to metal seal.
  • liquid such as water, is provided through the supply line. The liquid may be at a pressure of at least 10,000psi, more preferably at least 25,000psi and ideally at least 50,000psi within the bore of the connector.
  • the method includes monitoring the pressure at one or more locations within the connector.
  • the locations may be between seal locations and other locations, or between seals .
  • the third component may be manoeuvred using remote controlled means, for instance a powered manipulator.
  • Manual operation with suitable protection for the operator, may be used.
  • the second component is manually manipulated.
  • Figure 1 is a schematic view of a water jet cutting unit in a contained environment
  • Figure 2 is a cross-sectional view showing the connector of one embodiment of the invention.
  • the water jet cutting unit 2 comprises a nozzle 4 supplied with water under ultra high pressure along line 6 and grit along line 8.
  • the nozzle 4 can be moved laterally by supply of hydraulic fluid along line 10.
  • the workpiece 12 to be cut is placed between the nozzle 4 and baffle 14. Water from the jet 16 is collected and recycled upon reaching the baffle 14.
  • the whole unit and cutting operation is carried out in a containment chamber 20.
  • the connector according to the embodiment of the invention illustrated in Figure 2 comprises a body plug 50 which is fixedly mounted through the containment wall 52.
  • the body plug 50 is provided with a through bore 54 having a narrow neck portion 56, a wider portion 58 on the .inside of the containment wall 52, the hot side, and a wider portion 60 on the outside, cool side, of the containment wall 52.
  • the body plug 50 is also provided, on the cold side, with a radial flange 62.
  • a cylindrical element 64 with through bore 66 is inserted into the bore 54 from the cold side.
  • the cylindrical element 64 is provided within a further cylindrical component 65.
  • the component 65 comprises a cylindrical portion 68 of lesser diameter than the wider portion 60, but greater diameter than the neck portion 56.
  • the head portion 74 comprises a central element 76 integral with the rest of the element 64 and an external sleeve 78 integral with the rest of component 65.
  • Sleeve 78 is provided with an external screw thread 80. Throughout their length, and as a consequence including element 76 and sleeve 78, element 64 and component 65 are free to rotate relative to one another.
  • the connector On the hot side of the wall 52 the connector is provided with a connector plate 180 which is provided with couplings for a mechanical manipulator arm suitable for remote operation.
  • the connector plate 180 also carries a cylindrical protrusion 82 whose external dimension is intended to correspond to that of the internal dimension of the wider portion 58 on the hot side of the wall 52.
  • the cylindrical protrusion 82 also defines an internal bore 84, with internal screw thread 86, which leads to through bore 88 of dimension corresponding to that of the through bore 66.
  • To assemble the connector the connector plate 180 is manoeuvred such that the protrusion 82 lies in bore portion 58.
  • the element 64 and associated component 65 is then advanced along bore 54 from the cold side until the end of the external screw thread 80 on sleeve 78 engages the end of the internal screw thread 86 on protrusion 82.
  • O-ring seal 94 is compressed between the collar 70 of cylinder 68 and end 72 of bore 60; 0- ring seal 96 is compressed between the end 98 of cylindrical protrusion 82 and the end of wider portion 58. Further O-ring seals 100, 102 are provided in neck portion 56.
  • the gaps between the O-ring seals 96, 100, 102, 94 are monitored using pressure sensors to determine the integrity of the seal .
  • Hydraulic line 200 and grit line 300 are also connected through the plug 50 in a similar manner, illustrated schematically only in Figure 2.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

L'invention concerne un connecteur passe-paroi comprenant un premier élément (50) conçu pour s'engager dans une ouverture de paroi, ce premier élément comportant lui-même un trou de passage (54); un deuxième élément (68) inséré dans le trou du premier élément depuis un premier côté du mur; et un troisième élément (78) conçu pour s'engager avec le deuxième élément (68) depuis l'autre côté de la paroi. Les deuxième et troisième éléments comportent également un trou de passage. Ainsi, on dispose d'un système facile à connecter et à déconnecter, permettant d'acheminer des fluides de découpe au jet et/ou de fournir d'autres types d'alimentation à travers une paroi, dans une zone confinée, sans nuire à l'efficacité de cette zone.
PCT/GB1999/003034 1998-09-29 1999-09-28 Connecteur passe-paroi pour lignes d'alimentation WO2000019451A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU62104/99A AU6210499A (en) 1998-09-29 1999-09-28 Through wall connector for supply lines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9821026.3 1998-09-29
GBGB9821026.3A GB9821026D0 (en) 1998-09-29 1998-09-29 Improvements in and relating to connections

Publications (1)

Publication Number Publication Date
WO2000019451A1 true WO2000019451A1 (fr) 2000-04-06

Family

ID=10839558

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/003034 WO2000019451A1 (fr) 1998-09-29 1999-09-28 Connecteur passe-paroi pour lignes d'alimentation

Country Status (3)

Country Link
AU (1) AU6210499A (fr)
GB (1) GB9821026D0 (fr)
WO (1) WO2000019451A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407531A (en) * 1981-03-27 1983-10-04 Rca Corporation Externally adjustable seal and bearing structure
US5052938A (en) * 1989-03-03 1991-10-01 British Nuclear Fuels Plc Through-wall connection assembly
DE9209073U1 (de) * 1992-07-07 1992-12-03 Jeschke, Immanuel, 3203 Sarstedt Vorrichtung für die Einführung einer Versorgungsleitung in ein Gebäude
US5439392A (en) * 1992-11-25 1995-08-08 Framatome Connectors International Penetrator assembly connector sleeve and system comprising same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407531A (en) * 1981-03-27 1983-10-04 Rca Corporation Externally adjustable seal and bearing structure
US5052938A (en) * 1989-03-03 1991-10-01 British Nuclear Fuels Plc Through-wall connection assembly
DE9209073U1 (de) * 1992-07-07 1992-12-03 Jeschke, Immanuel, 3203 Sarstedt Vorrichtung für die Einführung einer Versorgungsleitung in ein Gebäude
US5439392A (en) * 1992-11-25 1995-08-08 Framatome Connectors International Penetrator assembly connector sleeve and system comprising same

Also Published As

Publication number Publication date
AU6210499A (en) 2000-04-17
GB9821026D0 (en) 1998-11-18

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