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WO1995027868A1 - Dispositif de reparation de tuyaux - Google Patents

Dispositif de reparation de tuyaux Download PDF

Info

Publication number
WO1995027868A1
WO1995027868A1 PCT/GB1995/000792 GB9500792W WO9527868A1 WO 1995027868 A1 WO1995027868 A1 WO 1995027868A1 GB 9500792 W GB9500792 W GB 9500792W WO 9527868 A1 WO9527868 A1 WO 9527868A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
seal
casing
repaired
area
Prior art date
Application number
PCT/GB1995/000792
Other languages
English (en)
Inventor
Daniel Graham Ball
Original Assignee
Daniel Graham Ball
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 Daniel Graham Ball filed Critical Daniel Graham Ball
Priority to AU21444/95A priority Critical patent/AU2144495A/en
Publication of WO1995027868A1 publication Critical patent/WO1995027868A1/fr

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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
    • F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
    • 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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe

Definitions

  • This invention relates to a pipe repair device, and more particularly to such a device for quick and efficient repair of pipes carrying fluid under pressure and containing small holes, splits and the like.
  • a pipe repair device comprising a casing for location over the pipe, said casing including an outer wall spaced from and surrounding an extent of the pipe containing an area to be repaired, the axially-opposed ends of said casing terminating at or adjacent the surface of the pipe, one to each side of said area to be repaired, and an inflatable seal of a flexible material for location in the casing over the area of pipe to be repaired, the arrangement being such that, on inflation of the seal to a pressure at or exceeding that in the bore of the pipe, the seal expands to react between the outer wall of the casing and the surface of said extent of the pipe thereby to seal against the area of the pipe to be repaired.
  • the flexibility of the seal is such that it can readily accommodate any ovality or other deformities in the pipe whilst still effecting and maintaining a total seal with the area of the pipe to be repaired.
  • the seal comprises a substantially rectangular bag the length of which is substantially equal to the circumference of the pipe to be repaired and the width of which is substantially equal to the axial extent of the casing, the bag being adapted to be wrapped around, to encompass, the extent of the pipe containing the area to be repaired.
  • the opposed ends of the seal each comprise a block of material such as rubber or plastics extending transversely of the seal and arranged to overlap one another on location of the seal around the pipe, the combined depths of said blocks being substantially equal to the distance between the outer wall of the casing and the surface of the pipe.
  • the side extents of the seal each comprise an outwardly tapering block of material such as rubber or plastics, the casing including opposed end walls axially spaced from one another and extending from opposed end regions of the outer wall to positions at or adjacent the surface of the pipe, said side walls being of a shape to correspond with, and to receive therein, said side extents of the seal.
  • the casing may comprise a single unit of generally annular shape, it is preferred that said casing comprises two or more portions releasably interconnected within one another, for example two portions each of substantially semi-circular cross- section the adjacent edges of which are hingedly connected to one another by pins received therein and extending axially thereof.
  • Fig. 1 is a front view, partly in vertical longitudinal section, of a device according to the invention
  • Fig. 2 is an end view of the device of Fig. 1;
  • Fig. 3 is a detail of the device of Fig. 1;
  • Fig. 4 is a plan view of the seal of the device of Fig. 1, and
  • Figs. 5 and 6 are sections on the lines V.-V and VT-V ⁇ respectively of Fig. 4. DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
  • the pipe to be repaired is shown at 2, the repair device comprising a metal casing of substantially hollow cylindrical shape indicated generally at 4 surrounding the pipe 2 and in which is located an inflatable seal indicated generally at 6.
  • the casing 4 includes opposed halves 8,10 each of semi-circular shape in transverse section and each including a semi-cylindrical wall 12 spaced from, and coaxial with, the pipe 2.
  • Each casing half 8,10 further includes opposed end walls 14,16 extending from the ends of the wall 12 and tapering towards the pipe 2 to terminate at or adjacent the outer surface of said pipe 2.
  • the two halves 8,10 of the casing 4 are interconnected with one another by means of a pair of diametrically-opposed pins 18 extending through associated aligned sleeves 20 welded on the casing halves 8,10, said pins 18/sleeves 20 arrangements each providing hinges such that, on removal of one pin 18 from its associated sleeves 20, the casing halves 8,10 can pivot about the other pin 18.
  • the seal 6 comprises a generally rectangular bag of flexible material such as a polymer compatible with the fluid being transported by the pipe 2, the length of the bag being substantially equal to the circumference of the pipe 2, and the width of the bag being substantially equal to the axial extent of the casing 4.
  • the side edges of the bag comprise solid polymer blocks 22 of tapered configurations conforming with the shapes of the edge regions within the casing 4 defined by the tapered, end walls 14,16.
  • the end edges of the bag comprise solid polymer blocks 24 so arranged that, on wrapping of the seal 6 around the pipe 2 within the casing 4, the blocks 24 overlap one another substantially to fill the space between the walls 12 of the casing 4 and the pipe 2.
  • An inflation nozzle 26 is vulcanised into one of the blocks 22 to project therethrough into the interior of the bag whereby a source of fluid under pressure, for example oil, grease or air, can be attached to the nozzle to inflate the seal 6.
  • a source of fluid under pressure for example oil, grease or air
  • the device described above is used to seal a small hole, tear or the like in a pipe such as the pipe 2 carrying fluid under pressure.
  • one half of the casing 4, with the deflated seal 6 therein, is located on the pipe to be repaired with a central region of the seal 6 over the area of the pipe to be repaired.
  • the seal is wrapped round the pipe with the blocks 24 overlapping one another, the other half of the casing 4 is located in position around the pipe 2 and seal 6, and the pins 18 are positioned in the sleeves 20 to hold the casing 4 loosely on the pipe 2.
  • a slot is formed in an end wall 16 of the casing 4 to accommodate the nozzle 26.
  • the source of fluid under pressure is attached to the nozzle 26, and fluid is pumped into the interior of the ;seal 6 thereby to inflate the seal to a pressure in excess of that of the fluid in the pipe 2.
  • Expansion of the inflated seal 6 is confined by the walls 12,14,16 of the casing 4, whereby said inflated seal 6 makes pressurised engagement with the surface of the pipe 2 to seal the area of said pipe in need of repair.
  • the side blocks 22 of the seal 6 locate in, to be confined by, the tapered end walls 14,16 of the casing 4 such that said side blocks 22 effectively exert clamping forces around the pipe 2 to each side of the area under repair.
  • the dynamic nature of the seal 6 is such that it is capable of accommodating any ovality or other deformities in the pipe 2 whilst still maintaining a complete seal over the area of the pipe 2 to be repaired.
  • the material of the pipe 2 to be repaired may be of metal or plastics, while the seal 6 may be of any suitable elastomer material dependant upon the fluid carried by the pipe 2.
  • the casing 4 may comprise a single, generally annular component or may comprise three or more portions selectively connectable to one another to surround the pipe 2.
  • the wall 12 may be continuous or apertured, while the walls 14,16 may be other than linear tapering, for example arcuate, with the blocks 22 shaped correspondingly.
  • the seal 6 may extend part way only around the pipe 2 providing it covers the area to be repaired, although it is preferred that the seal extends at least 180° around the pipe 2.
  • the seal is preferably inflated using a liquid such as grease or oil.
  • a repair device for a pipe which totally eliminates the requirements for nuts and bolts to effect the desired seal with the pipe, the dynamic nature of the seal itself within the associated casing serving to create and maintain the necessary pressurised engagement with the pipe.
  • the flexibility of the inflated seal is also such as to make it suitable for sealing non-circular, distorted and/or pitted pipes without risk of leakage as would occur with established arrangements.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

Dispositif utile pour réparer des trous, des perforations et autres se trouvant sur tuyaux (2) dans lesquels circule du fluide sous pression. Ce dispositif comprend une enveloppe (4) qui se place sur une partie du tuyau (2) présentant une zone à réparer, de manière à entourer cette partie endommagée, ladite enveloppe (4) comprenant une paroi extérieure (12) qui est espacée du tuyau (2) et présente des régions terminales opposées (14, 16) se terminant au niveau de la surface du tuyau (2) ou à côté de cette dernière. Un joint gonflable (6) en matière souple est situé dans l'enveloppe (4) placée sur la zone du tuyau (2) à réparer, et est gonflé à une pression supérieure ou égale à celle existant dans la lumière du tuyau (2) pour qu'il se dilate et réagisse entre la paroi extérieure (12) de l'enveloppe (2) et la surface de la longueur de tuyau (2), en se soudant hermétiquement contre la zone du tuyau (2) à réparer.
PCT/GB1995/000792 1994-04-07 1995-04-06 Dispositif de reparation de tuyaux WO1995027868A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21444/95A AU2144495A (en) 1994-04-07 1995-04-06 Pipe repair device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9406834.3 1994-04-07
GB9406834A GB9406834D0 (en) 1994-04-07 1994-04-07 Pipe repair muff

Publications (1)

Publication Number Publication Date
WO1995027868A1 true WO1995027868A1 (fr) 1995-10-19

Family

ID=10753113

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/000792 WO1995027868A1 (fr) 1994-04-07 1995-04-06 Dispositif de reparation de tuyaux

Country Status (3)

Country Link
AU (1) AU2144495A (fr)
GB (1) GB9406834D0 (fr)
WO (1) WO1995027868A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU764756B2 (en) * 1998-03-13 2003-08-28 Milnes-Gatic Pty Ltd Pipe connector
US7063356B2 (en) 2001-01-19 2006-06-20 Amidex Coupling Systems (Pty) Ltd. Pipe coupling
WO2008152369A1 (fr) * 2007-06-12 2008-12-18 Fluid Leader Limited Système de renforcement
CN102996973A (zh) * 2011-09-13 2013-03-27 胜利油田胜利石油化工建设有限责任公司 一种玻璃钢外护泡沫保温管补口工艺
CN105351673A (zh) * 2015-12-08 2016-02-24 朗格斯特哈尔滨环保节能产品制造有限公司 聚氨酯保温管直管板式补口设备及补口保温方法
CN107035937A (zh) * 2016-12-27 2017-08-11 哈尔滨朗格思特供热装备科技有限公司 柔性保温管补口连接保温管件及补口连接保温方法
CN112082037A (zh) * 2020-07-25 2020-12-15 宜春市龙腾机械电气有限公司 变压变形自适应管道抢修节

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2002577A (en) * 1931-02-04 1935-05-28 Herbert H Ice Hydraulic safety pipe line repair device
US2690193A (en) * 1948-01-26 1954-09-28 Telford L Smith Pipe clamp
DE2745506A1 (de) * 1977-10-10 1979-04-12 Manfred Vetter Vorrichtung zum abdichten schadhafter waende von behaeltern, rohren oder dergleichn mit einem die leckstelle ueberdeckenden aufbalsbaren kissen
GB2080476A (en) * 1980-07-22 1982-02-03 Seaweld Divers Ltd Improvements relating to mending of structural members
EP0561467A1 (fr) * 1992-03-18 1993-09-22 SNAM S.p.A. Procédé pour réparer des dommages locaux sur des canalisations par applications d'une douille avec une feuille de protection interposée

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2002577A (en) * 1931-02-04 1935-05-28 Herbert H Ice Hydraulic safety pipe line repair device
US2690193A (en) * 1948-01-26 1954-09-28 Telford L Smith Pipe clamp
DE2745506A1 (de) * 1977-10-10 1979-04-12 Manfred Vetter Vorrichtung zum abdichten schadhafter waende von behaeltern, rohren oder dergleichn mit einem die leckstelle ueberdeckenden aufbalsbaren kissen
GB2080476A (en) * 1980-07-22 1982-02-03 Seaweld Divers Ltd Improvements relating to mending of structural members
EP0561467A1 (fr) * 1992-03-18 1993-09-22 SNAM S.p.A. Procédé pour réparer des dommages locaux sur des canalisations par applications d'une douille avec une feuille de protection interposée

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU764756B2 (en) * 1998-03-13 2003-08-28 Milnes-Gatic Pty Ltd Pipe connector
US7063356B2 (en) 2001-01-19 2006-06-20 Amidex Coupling Systems (Pty) Ltd. Pipe coupling
WO2008152369A1 (fr) * 2007-06-12 2008-12-18 Fluid Leader Limited Système de renforcement
CN102996973A (zh) * 2011-09-13 2013-03-27 胜利油田胜利石油化工建设有限责任公司 一种玻璃钢外护泡沫保温管补口工艺
CN105351673A (zh) * 2015-12-08 2016-02-24 朗格斯特哈尔滨环保节能产品制造有限公司 聚氨酯保温管直管板式补口设备及补口保温方法
CN107035937A (zh) * 2016-12-27 2017-08-11 哈尔滨朗格思特供热装备科技有限公司 柔性保温管补口连接保温管件及补口连接保温方法
CN112082037A (zh) * 2020-07-25 2020-12-15 宜春市龙腾机械电气有限公司 变压变形自适应管道抢修节

Also Published As

Publication number Publication date
AU2144495A (en) 1995-10-30
GB9406834D0 (en) 1994-06-01

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