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WO2003100309A1 - Ensemble joint d'etancheite - Google Patents

Ensemble joint d'etancheite Download PDF

Info

Publication number
WO2003100309A1
WO2003100309A1 PCT/GB2003/002203 GB0302203W WO03100309A1 WO 2003100309 A1 WO2003100309 A1 WO 2003100309A1 GB 0302203 W GB0302203 W GB 0302203W WO 03100309 A1 WO03100309 A1 WO 03100309A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
providing
connector body
seal
conduit
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.)
Ceased
Application number
PCT/GB2003/002203
Other languages
English (en)
Inventor
John Michael Canning
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.)
Individual
Original Assignee
Individual
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
Priority claimed from GB0211895A external-priority patent/GB0211895D0/en
Priority claimed from GB0225829A external-priority patent/GB0225829D0/en
Application filed by Individual filed Critical Individual
Priority to AU2003234016A priority Critical patent/AU2003234016A1/en
Publication of WO2003100309A1 publication Critical patent/WO2003100309A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe
    • F16L41/082—Non-disconnectable joints, e.g. soldered, adhesive or caulked joints

Definitions

  • the present invention relates to seal assemblies in particular, though not exclusively seal assemblies which can be attached to fluid-containing vessels. It also relates to a method of connecting a seal assembly and vessel.
  • a method of engaging a seal assembly with a wall surrounding an aperture in a vessel comprising the steps of: a) providing an aperture in an outer wall of the vessel; b) providing a seal assembly, the seal assembly comprising a connector body, the body having a first end which has a lip, a second end and a bore surrounded by a connector wall extending along the length of the connector body therebetween, the connector wall comprising a deformable portion; c) inserting the connector body into the aperture such that the lip abuts the outer wall; d) compressing the connector body along its length causing the deformable portion to deform outwardly away from the bore, gripping the outer wall between the lip and deformable portion so forming a seal.
  • the lip and the deformable portion between them form a seal around the edge of the aperture in the outer wall. Once the edges of the aperture have been sealed the interior of the vessel can be easily accessed through the bore. This method provides a relatively cheap seal around an aperture which can be installed quickly and simply even by an unskilled workman.
  • the step of compressing the connector body comprises the steps of: a) providing a compression tool having proximal and distal ends; b) placing the proximal end of the tool in abutment with the lip; c) connecting the distal end of the tool to the connector body at a point remote from the lip; and, d) displacing the proximal and distal ends of the tool towards each other.
  • the compression tool may be hydraulically operated or hand operated. The method provides a simple but effective way of sealing part of the connector body around the edge of the aperture.
  • the method further comprises the step of providing the deformable portion as a recess located in the connector wall.
  • the recess is provided on an inner surface of the connector wall.
  • the recess may have a rectilinear cross- sectional profile.
  • the method further comprises the step of providing a recess having a concave cross-sectional profile.
  • Use of a recess having a concave cross-sectional profile improves the deformation of the deformable portion outwardly away from the bore, thereby enhancing the gripping effect between the lip and deformable portion.
  • the method further comprises the step of providing a recess having a predetermined or selected radius of curvature. More preferably, the method further comprises the step of providing a connector body in which the distance between a centre line of the recess and an inner surface of the lip is one of a selected range of distances. Providing connector bodies having different distances between the centre line of the recess and the inner surface of the lip enables the seal assembly to be secured to vessels having outer walls of different thicknesses.
  • the method further comprises the steps of: a) providing a conduit support, the support having a first end, a second end, and a central passageway extending therebetween ; b) inserting the conduit support into the bore; and c) securing an outer portion of the conduit support to the second end of the connector body.
  • the method further comprises the steps of a) providing a conduit having inner and outer surfaces; and b) inserting the conduit into the central passageway.
  • an end of the conduit may project below the level of the fluid in the vessel. This allows the operative to have direct access to the fluid which is particularly advantageous if samples are to be taken.
  • an end of the conduit may project into the interior of the vessel but lie above the level of the fluid in the vessel. This may be of use where the fluid under scrutiny is toxic and/or only ambient conditions in the vessel are being monitored.
  • the method further comprises the steps of: a) providing a first seal; b) positioning the first seal on an internal shoulder of the conduit support, inclined to the bore; and c) compressing the first seal into sealing engagement . with the outer surface of the conduit.
  • the act of providing a first seal around the conduit holds the conduit tightly in position preventing it from slipping into the vessel and prevents ingress of contaminant fluids and egress of toxic fluids.
  • the method further comprises the step of providing a second seal around the aperture in the outer wall prior to insertion of the connector body.
  • the provision of a second seal around the edge of the aperture in the outer wall enhances the sealing effect of the lip and deformable portion.
  • a method of engaging a seal assembly with inner and outer walls surrounding apertures in a multi-walled vessel comprising the steps of: a) providing apertures in both outer and inner walls of the vessel; b) providing a connector body, the body having a first end which has a lip, a second end and a bore surrounded by a connector wall extending along the length of the connector body therebetween, the connector wall comprising a deformable portion; c) inserting the connector body into the aperture such that the lip abuts the outer wall; d) compressing the connector body along its length causing the deformable portion to deform outwardly away from the bore, gripping the outer wall between the lip and deformable portion so forming a seal; e) providing a conduit support, the support having first and second ends and a central passageway for receiving a conduit extending therebetween; f) inserting the conduit support into the bore such that the first end abuts against the wall surrounding the aperture in the inner wall;
  • This method provides a relatively cheap, quick and simple means of providing access through both of the walls of a double-walled vessel.
  • the fact that no threads need to be provided on the edges of the apertures reduces the amount of drilling required and therefore less heat is generated during the drilling process.
  • this method allows more tolerance for holes which are drilled out of alignment as screw threads are not required on the edges of the aperture. Overall, this makes the process less time consuming and simpler thus there is no need for expensive equipment or highly skilled workmen both of which would increase installation costs. Further, this method allows any distance or void between the walls to be bridged.
  • the seal assembly may be applied to vessels of any type of construction or gauge of material
  • the vessel may be made from, for example, steel, plastic or fibreglass.
  • the method further comprises the step of providing the deformable portion as a recess located in the connector wall.
  • the recess is provided on an inner surface of the connector wall.
  • the recess may have a rectilinear cross- sectional profile.
  • the method further comprises the step of providing a recess having a concave cross-sectional profile.
  • Use of a recess having a concave cross-sectional profile improves the deformation of the deformable portion outwardly away from the bore, thereby enhancing the gripping effect between the lip and deformable portion.
  • the method further comprises the step of providing a recess having a predetermined or selected radius of curvature. More preferably, the method further comprises the step of providing a connector body in which the distance between a centre line of the recess and an inner surface of the lip is one of a selected range of distances. Providing connector bodies having different distances between the centre line of the recess and the inner surface of the lip enables the seal assembly to be secured to vessels having outer walls of different thicknesses.
  • the conduit support is threaded into engagement with the connector body bore. Threading provides a simple way of connecting the conduit support to the connector body bore. Moreover, varying the torque on the conduit support improves the sealing effect of the first end of the conduit support and the deformable portion against the inner and outer walls respectively.
  • the method further comprises the steps of: a) providing a conduit having inner and outer surfaces; and b) inserting a conduit into the central passageway. Positioning a conduit in the conduit support enables an operative to have easy access to the interior of the vessel.
  • an end of the conduit may project below the level of the fluid in the vessel. This allows the operative to have direct access to the fluid which is particularly advantageous if samples are to be taken.
  • an end on the conduit may project into the interior of the vessel but lie above the level of the fluid in the vessel. This may be of use where the fluid under scrutiny is toxic and/or only ambient conditions in the vessel are being monitored.
  • the method further comprises the steps of: a) providing a first seal; b) positioning the first seal on an internal shoulder of the conduit support, inclined to the bore; and c) compressing the first seal into sealing engagement with the outer surface of the conduit.
  • the act of providing a first seal around the conduit holds the conduit tightly in position preventing it from slipping into the vessel and prevents ingress of contaminant fluids and egress of toxic fluids.
  • the method further comprises the step of providing a second seal around the aperture in the outer wall prior to insertion of the connector body.
  • the provision of a second seal around the edge of the aperture in the outer wall enhances the sealing effect of the lip and deformable portion.
  • the method further comprises the step of providing a third seal around the aperture in the inner wall prior to insertion of the connector body and wherein the conduit support is inserted until the first end abuts the third seal.
  • Providing a third seal enhances the sealing effect of the overall seal assembly still further and prevents fluids escaping from the vessel in to the gap between the inner and outer walls.
  • a seal assembly for sealing engagement with a wall surrounding an aperture in a vessel, the assembly comprising: a connector body, the body having a first end which has a lip, a second end and a bore surrounded by a connector wall extending along the length of the connector body therebetween, the connector wall comprising a deformable portion, adapted to deform outwards away from the bore on compression of the connector body along its length.
  • This seal assembly provides a relatively cheap seal around an aperture in a vessel which can be installed quickly and simply.
  • the deformable portion comprises a recess located in the connector wall. More preferably, the recess is provided in an inner surface of the connector wall.
  • the recess may have a rectilinear cross-sectional profile. Conveniently, the recess has a concave cross-sectional profile. Use of a recess having a concave cross-sectional profile improves the deformation of the deformable portion outwardly away from the bore, thereby enhancing the gripping effect between the lip and deformable portion.
  • the recess has a predetermined or selected radius of curvature.
  • the distance between a centre line of the recess and an inner surface of the lip is one of a selected range of distances.
  • the seal assembly further comprises a conduit support received within the bore, the conduit support comprising first and second ends and a central pas-sageway for receiving a conduit extending therebetween; the seal assembly further comprising locking means for locking the conduit support in position in the bore.
  • the locking means comprises a threaded portion on an outer wall of the conduit support for engagement with a threaded portion of the bore. Having screw threads provides a simple way of connecting the conduit support to the connector body bore. Further, varying the torque on the conduit support improves the sealing effect of the deformable portion against the outer wall.
  • one end of the conduit support is frustoconical .
  • the first end of the conduit support is frustoconical . Arranging the first end of the conduit support to be frustoconical enables there to be a greater sealing effect between this end of the conduit support and the aperture in the inner wall.
  • the first, second and third seals are composed of a polymeric material. More preferably, the first, second and third seals are composed of a nitrile material. Alternatively, the first, second and third seals are made of rubber. In certain embodiments, the first seal may be an o-ring. Alternatively, the first seal may have a frustoconical profile.
  • the seal assembly may comprise part of a vessel.
  • Figure 1 shows a cross-sectional view of a first embodiment of the sealing assembly
  • Figure 2 shows a cross-sectional view of a second embodiment of the sealing assembly
  • Figure 3 shows a cross-sectional view of a first embodiment of a connector body of the present invention in an initial installation position
  • Figure 4 shows a plan view of the connector body of Figure 3;
  • Figure 5 shows a cross-sectional view of a connector body of Figures 3 and 4 in a compressed state
  • Figure 6 shows a cross-sectional view of a second embodiment of a connector body of the present invention in an initial installation position
  • Figure 7 shows a plan view of the connector body of Figure 6
  • Figure 8 shows a cross-sectional view of a connector body of Figures 6 and 7 in a compressed state.
  • a first embodiment of a seal assembly 10 in accordance with the present invention is shown in Figure 1.
  • the seal assembly 10 is shown bridging apertures in the outer and inner walls 11, 12 of a vessel (not shown) and supporting a conduit 13 which extends from the exterior to the interior of the vessel.
  • the seal assembly 10 includes a connector body 14 which is an annular member which may be solid or a sealed body with air inside.
  • the connector body 14 is shown in a compressed state in Figure 1.
  • the connector body 14 has a first end 15 having a lip 16, a second end 17 which has a threaded portion 18 on the internal surface and a deformable portion 19 (shown deformed in Figure 1) .
  • a bore 20, surrounded by a connector wall 38, extends along the length of the connector body 14 between the first and second ends 15, 17.
  • the lip 16 of the connector body 14 rests on an external surface of a second seal 21 which surrounds the edge of the aperture in the outer wall 11.
  • the deformable portion 19 is shown in gripping contact with an internal surface of the second seal 21.
  • the deformable portion 19 is crimped into the deformed position as shown in Figure 1 by a hydraulic crimping tool (details of which shall be given later) .
  • the connector body 14 is thus secured to the edges of the aperture in the outer wall 11.
  • a generally U-shaped conduit support 22 is secured within the bore 20 of the connector body.
  • the conduit support 22 has a first end 23, a second end 24, a central passageway 25 extending between the first and second ends .
  • a substantial portion of the external surface of the conduit support 22 has a screw thread 26 and this is used to secure the conduit support 22 into the connector body 14.
  • the first end 23 of the conduit support 22 has a tapered external surface 27 which sealingly abuts a third seal 28 arranged around the aperture of the inner wall 12 of the vessel. It can be readily seen from Figure 1 that the more that the connector body 14 and conduit support 22 are brought into engagement the greater will be the sealing effect of the tapered external surface 27 upon the third seal 28 and the deformable portion 19 upon the internal surface of the second seal 21.
  • the second end 24 of the conduit support 22 has a recess 29 which is wider than the central passageway 25.
  • the internal walls of the recess 29 are provided with a screw thread 30.
  • the base of the recess 29 forms an internal shoulder 31 around one end of the central passageway 25.
  • a first seal 32 is shown supported on the internal shoulder 31 surrounding the conduit 13. In the embodiment shown in Figure 1 the first seal 32 is an O-ring seal.
  • a generally T-shaped lock nut 33 having a body 34 which fits into the recess 29 is used to compress the first seal 32 against the outer surface of the conduit 13.
  • the body 34 of the lock nut 33 has a central bore 35 which accommodates the conduit 13 and an external thread 34 which mates with screw thread 30.
  • the embodiment shown in Figure 2 is identical to that shown in Figure 1 except that the first seal 32 takes the form of an annular cylinder having a tapering outer surface 36, and the inner surface 37 of the bore 35 of the lock nut 33 also tapers.
  • the two tapering surfaces create a more stable and effective seal .
  • Figures 3 and 4 show a first embodiment of the connector body 14 in its undeformed state.
  • the connector body 14 is shown with the lip 16 resting on an external surface of the second seal 21 which surrounds the edge of the aperture in the outer wall 11 of a vessel.
  • the deformable portion 19 can be seen to be much thinner relative to the surrounding material at either end of the connector body 14.
  • a hydraulic crimping tool (not shown) is used.
  • a distal end of the tool is screwed to the threaded portion 18 on the second end 17 of the connector body 14.
  • a proximal end of the tool is then placed in abutment with the lip 16.
  • the distal end of the tool is then pulled under hydraulic pressure towards the proximal end of the tool such that the second end 17 of the connector body 14 is pulled towards the first end 15 thereby displacing the deformable portion 19 outwardly, crimping it against the second seal 21.
  • a pair of roughly concentric apertures are bored: one in the outer wall 11 and one in the inner wall 12.
  • a third seal 28 is placed around the edges of the aperture in the inner wall 12 and a second seal around the edges of the aperture in the outer wall 11.
  • the connector body 14 is then inserted into the apertures such that the lip 16 rests on the second seal 21.
  • the connector body 14 is then compressed as described above to reduce its overall length and crimp the deformable portion 19 such that it abuts an internal surface of the second seal 21.
  • the conduit support 22 is then inserted through the bore 20 of the connector body 14 and the two are screwed together.
  • the tapered external surface 27 of the conduit support 22 abuts against the third seal 28.
  • a first seal 32 is then positioned on the internal shoulder 31 of the conduit support 22 and a conduit 13 inserted into the central passageway 25 of the conduit support 22.
  • Lock nut 32 is placed around the conduit 13 into the recess 29 of the conduit support 22 and secured therein to compress the first seal 32 against the outer surface of the conduit 13.
  • Figures 6 and 7 show a second embodiment of the connector body 14 in its undeformed state.
  • the connector body 14 is shown with the lip 16 resting on an external surface of the second seal 21 which surrounds the edge of the aperture in the outer wall 11 of a vessel.
  • the second seal 21 and outer wall 11 are shown only on the left hand side in- Figure 6.
  • the deformable portion 19' takes the form of a recess 39 on an inner portion of the connector wall 38 of the connector body 14.
  • the recess 39 is concave in cross-section having a predetermined radius of curvature and a centre line 40 which is located a distance, dimension X, from an inner surface 41 of the lip 16.
  • a hydraulic crimping tool (not shown) is used as described in the above embodiment.
  • the distance X in the undeformed connector body 14 is reduced to distance Y upon compression thereby securing the connector body 14 to a vessel having an outer wall 11 thickness of Z.
  • the connector body 14 of the present invention can be made to fit outer walls 14 of different thickness (not shown) by providing a different connector bodies having a preselected distance X.
  • Increasing the distance X enables the connector body 14 to be sealingly secured to vessels having relatively thicker outer walls 11.
  • the use of a recess 39 having a concave cross-section also enhances the outward deformation of the deformable portion 19' thereby enhancing the sealing effect produced.
  • the thickness of the outer wall 11 determines both the radius of curvature of the recess 39 and the position of the centre line 40 relative to the inner surface 41 of the lip 16 (dimension X) .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

Cette invention a un procédé permettant d'ajuster un ensemble joint d'étanchéité (10) à une paroi (11) entourant une ouverture ménagée dans une cuve. Ce procédé consiste, (a), à ménager une ouverture dans la paroi extérieure de la cuve, (b), à utiliser un ensemble joint d'étanchéité composé d'un connecteur (14) ayant une première extrémité (15) avec un rebord (16), une seconde extrémité (17) et un alésage (20), entouré par une paroi du connecteur (38) dont une partie (19) est susceptible de se déformer et s'étend le long du connecteur, (c), à introduire le connecteur dans l'ouverture, de sorte que le rebord vienne d'appuyer contre la paroi extérieure et, (d), à comprimer le connecteur dans le sens de la longueur afin de déformer vers l'extérieur la partie déformable loin de l'alésage et de saisir la paroi extérieure entre le rebord et la paroi déformable afin de former le joint.
PCT/GB2003/002203 2002-05-23 2003-05-21 Ensemble joint d'etancheite Ceased WO2003100309A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003234016A AU2003234016A1 (en) 2002-05-23 2003-05-21 Seal assembly

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0211895.8 2002-05-23
GB0211895A GB0211895D0 (en) 2002-05-23 2002-05-23 Seal assembly
GB0225829A GB0225829D0 (en) 2002-11-06 2002-11-06 Seal assembly
GB0225829.1 2002-11-06

Publications (1)

Publication Number Publication Date
WO2003100309A1 true WO2003100309A1 (fr) 2003-12-04

Family

ID=29585816

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/002203 Ceased WO2003100309A1 (fr) 2002-05-23 2003-05-21 Ensemble joint d'etancheite

Country Status (2)

Country Link
AU (1) AU2003234016A1 (fr)
WO (1) WO2003100309A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015121612A1 (de) * 2015-12-11 2017-06-14 Manfred Scheefeldt Befestigungsvorrichtung zur Befestigung eines Dombelüfters
WO2019036822A1 (fr) * 2017-08-19 2019-02-28 深圳渐开线智能科技有限公司 Dispositif de division de fluide
WO2019056148A1 (fr) * 2017-09-19 2019-03-28 东莞好奇智能科技有限公司 Diviseur de fluide
WO2019056141A1 (fr) * 2017-09-19 2019-03-28 东莞好奇智能科技有限公司 Procédé de fabrication d'un dispositif de division de fluide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984132A (en) * 1975-02-27 1976-10-05 The Weatherhead Company Bulkhead fitting
FR2583497A1 (fr) * 1985-06-17 1986-12-19 Capri Codec Sa Dispositif pour maintenir une canalisation a la traversee d'une paroi
US5213378A (en) * 1989-06-02 1993-05-25 The B. F. Goodrich Company Fluid connector
DE20120029U1 (de) * 2001-12-11 2003-04-17 Voss Automotive GmbH, 51688 Wipperfürth Stutzen für eine Behälterwand

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984132A (en) * 1975-02-27 1976-10-05 The Weatherhead Company Bulkhead fitting
FR2583497A1 (fr) * 1985-06-17 1986-12-19 Capri Codec Sa Dispositif pour maintenir une canalisation a la traversee d'une paroi
US5213378A (en) * 1989-06-02 1993-05-25 The B. F. Goodrich Company Fluid connector
DE20120029U1 (de) * 2001-12-11 2003-04-17 Voss Automotive GmbH, 51688 Wipperfürth Stutzen für eine Behälterwand

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015121612A1 (de) * 2015-12-11 2017-06-14 Manfred Scheefeldt Befestigungsvorrichtung zur Befestigung eines Dombelüfters
DE102015121612B4 (de) * 2015-12-11 2019-09-19 Manfred Scheefeldt Dombelüfter
WO2019036822A1 (fr) * 2017-08-19 2019-02-28 深圳渐开线智能科技有限公司 Dispositif de division de fluide
WO2019056148A1 (fr) * 2017-09-19 2019-03-28 东莞好奇智能科技有限公司 Diviseur de fluide
WO2019056141A1 (fr) * 2017-09-19 2019-03-28 东莞好奇智能科技有限公司 Procédé de fabrication d'un dispositif de division de fluide
CN111433506A (zh) * 2017-09-19 2020-07-17 东莞好奇智能科技有限公司 流体分流器

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