WO2002035136A1 - Appareillage pour revêtement intérieur de conduites - Google Patents

Appareillage pour revêtement intérieur de conduites Download PDF

Info

Publication number
WO2002035136A1
WO2002035136A1 PCT/GB2001/004620 GB0104620W WO0235136A1 WO 2002035136 A1 WO2002035136 A1 WO 2002035136A1 GB 0104620 W GB0104620 W GB 0104620W WO 0235136 A1 WO0235136 A1 WO 0235136A1
Authority
WO
WIPO (PCT)
Prior art keywords
liner
inlet
valve
chamber
pipe
Prior art date
Application number
PCT/GB2001/004620
Other languages
English (en)
Inventor
Terence Victor Manlow
Original Assignee
Water Industry Standard Product Approvals Limited
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 Water Industry Standard Product Approvals Limited filed Critical Water Industry Standard Product Approvals Limited
Publication of WO2002035136A1 publication Critical patent/WO2002035136A1/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
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1651—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being everted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
    • B29C63/36—Lining or sheathing of internal surfaces using tubular layers or sheathings being turned inside out

Definitions

  • the present invention relates to an apparatus, and a method, for everting a liner or a flexible tube such as is employed in the lining of pipes, passageways and the like.
  • the fluid pressure required to evert the liner is generated using water at a suitable pressure.
  • One way of generating the required water pressure is to use a column of water stored at a suitable height above the pipe to be lined.
  • this often requires a head of water which is several metres in height and additional apparatus, e.g. scaffolding, is required to effect the lining of the pipe.
  • a pipe lining apparatus for inserting a liner into a pipe or passageway, the apparatus comprising a chamber including a liner inlet, a liner outlet and a fluid inlet for the input of a pressurised fluid into the chamber;
  • the liner inlet including a valve capable of being selectively opened to allow passage of a portion of a liner therethrough, or closed to prevent movement of the liner with respect to the liner inlet and to provide a substantially fluid-tight seal at the inlet of the chamber
  • the valve including a flexible valve body and an operating means, wherein the operating means is mechanically engageable with the flexible body to close the valve.
  • the operating means includes a contact element operatively connected to a drive means whereby the contact element is engageable with the flexible body to open or close the valve.
  • the operating means preferably includes a pair of opposed contact elements. More preferably, each contact element is operatively connected to a respective drive means. In the alternative, one of the contact elements may be operatively connected to a respective drive means and the other of the contact elements may be fixed relative to the liner inlet.
  • the flexible valve body is a resilient element which may be deflected by the operating means, but which is biased to its original or non- deflected position.
  • the flexible valve body has a generally oval-shaped cross section with a hollow core to allow a liner to pass therethrough.
  • a portion of the flexible valve body is preferably secured to a portion of the chamber by a securing means whereby a first portion of the flexible valve body is fixed and a second portion of the valve body is capable of being deflected by the operating means.
  • the drive means may comprise a piston slidably mounted within a cylinder, the piston preferably being driven by a compressed fluid.
  • the drive means may comprise a motor, preferably an electric motor, which is capable of inducing translational movement in the contact element connected thereto.
  • the drive means may comprise a lever which is manually operable by a user.
  • the eversion fluid is water which may be pressurised by the addition of a pressurised gas, preferably compressed air.
  • the chamber may include a water (preferably cold water) inlet and a compressed gas inlet.
  • the chamber may also include a gas outlet valve to vent the compressed gas and de-presurise the chamber.
  • the water may be pressurised before introduction into the eversion chamber.
  • the liner for use with the present apparatus is preferably a resin impregnated tube.
  • a method for inserting a liner into a pipe or passageway by eversion of the liner using the apparatus including (i) feeding a leading end portion of the liner through the apparatus and securing it to the liner outlet of the chamber, (ii) feeding a first portion of the liner into the chamber, (iii) closing the valve, (iv) applying a fluid pressure via the fluid inlet to evert a length of the liner equal to the length of the first portion, (v) releasing the fluid pressure, (vi) opening the valve, and (vii) repeating steps (ii to vi) as many times as necessary to line the pipe or the passageway.
  • the liner is only fed into the eversion chamber when the valve is open and is only everted when the valve is closed, the valve being capable of alternating between open and closed configurations as required.
  • the step of releasing the fluid pressure may be achieved by opening the valve.
  • steps (v) and (vi) may be carried out simultaneously.
  • the fluid pressure may be released via a release valve provided in the chamber of the apparatus and the steps may be carried out sequentially or simultaneously.
  • the step of closing the valve includes activating the operating means to engage the flexible valve body which is in turn urged into sealing contact with the liner. Similarly, the valve is opened by the operating means either retracting the flexible body away from the liner or allowing the flexible body to resiliently spring back away from the liner whereby the fluid-tight seal around the liner is released or broken.
  • the method may further include the step of energising the drive means which in turn causes the contact element to engage the flexible valve body and urge it into sealing engagement with the liner.
  • the liner may be fed into the chamber manually by a user, or it may be fed in automatically via a suitable feeding apparatus mounted either externally of the chamber or within the chamber.
  • Figure 1 shows a side elevational view of a pipe lining apparatus according to the first aspect of the present invention
  • Figure 2 is a plan view from above of the apparatus shown in Figure 1;
  • Figure 3 is a schematic drawing showing in more detail the liner inlet of the embodiment shown in Figure 1, with the inlet valve in an open configuration; and
  • Figure 4 is a schematic drawing showing the same portion of the apparatus as Figure 3, but with the valve in a closed configuration.
  • a pipe lining apparatus 2 is shown in the drawings which comprises an eversion chamber 4, a liner inlet 6 and a liner outlet 8.
  • the apparatus 2 is supported by four legs 22 and further includes a cold water inlet 18 and a compressed air inlet 19.
  • the liner inlet 6 includes a liner inlet valve 9 comprising a pair of hydraulic rams 10, a pair of contact elements 14 each of which is connected to a respective hydraulic ram 10 by a connecting rod 36, and a flexible valve body 26.
  • the liner inlet valve 9 is carried by an upwardly facing support surface 49 of a top plate 48 of the chamber 4.
  • the hydraulic rams 10 are mounted to the support surface 49 by respective ram support elements 16.
  • the flexible valve body 26 has a cross section which may be described as being generally oval in shape, and a correspondingly shaped clamp member 42, which is secured to the upwardly facing support surface 49, clamps a lower portion 40 of the valve body 26 to the chamber top plate 48.
  • the remainder of the flexible valve body which is not rigidly held within the clamp 42 is free to move.
  • the flexible valve body 26 is made from a resilient material such that it is biased towards the open position shown in Figure 3 and will return to this position if deflected and then released.
  • the valve body is formed from a suitably shaped foamed polymer core and an outer layer comprising a polyester fabric coated with a polyurethene which is commercially available under the mark "XX067".
  • Each of the two hydraulic rams 10 is connected to a source of hydraulic fluid via respective hydraulic fluid pipes 12.
  • a liner 38 may be fed into the eversion chamber 4 through the liner inlet 6 and an aperture 50 centrally located through the top plate 48.
  • the apparatus 2 is supported by supporting legs 22 in a desired position over an entry point, e.g. a vertical access point, of the pipe or passageway to be lined.
  • the liner 38 to be everted is then fed manually by a user into the liner inlet 6, and through the eversion chamber 4, until its leading edge just protrudes out of the liner outlet 8.
  • the leading end of the liner is then cuffed back over an outwardly facing surface 24 of the liner outlet 8 and secured thereto by any conventional method or apparatus commonly used in this art.
  • water 46 is pumped into the eversion chamber 4 through the water inlet valve 18 up to a desired level, the water being prevented from escaping from the outlet 8 of the eversion chamber 4 by the cuffed back liner 38.
  • the level of the water is indicated to a user via a sight glass 32, and is controlled by a float (not shown) operatively connected to a solenoid (not shown) which in turn controls the water inlet valve 18.
  • compressed air is added to the eversion chamber 4 above the water level via the compressed gas inlet pipe 19 whereby a length of the liner 38 corresponding to the length of the liner 38 fed into the eversion chamber 4 is everted and extends out from the apparatus 2 through the liner outlet 8.
  • the gas pressure is regulated by a pressure regulator in accordance with conventional techniques for such regulation.
  • the compressed air inlet is closed and the air pressure within the eversion chamber is released by exhausting the compressed gas back through the inlet pipe 19.
  • the valve 9 is then opened by retracting the pistons back along their respective cyclinders, which in turn causes the contact elements 14 to move away from each other.
  • the resilient nature of the flexible valve body 26 results in it springing away from the liner 38 and moving out of sealing engagement with it.
  • the liner 38 is a resin impregnated felt tube which is well known in this art and once fully everted and lining the pipe or passageway, a heated fluid, typically heated water, is introduced into the lined pipe or passageway via a hot water inlet pipe 20.
  • the heated fluid urges the resin impregnated liner into intimate contact with the interior of the pipe or passageway to be lined and causes the resin of the liner to cure, thus securing the liner to the interior of the pipe or passageway.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Cette invention a trait à un appareillage (2) pour revêtement intérieur de conduites, permettant de mettre en place une chemise dans une conduite ou dans un passage. Cet appareillage comporte une enceinte (4) comprenant une orifice d"entrée (6), un orifice de sortie (8) pour chemise et un orifice d"entrée pour fluide (19) destiné à introduire dans l"enceinte un fluide sous pression. L"orifice d"entrée pour chemise est pourvu d"un clapet (9) pouvant, de manière sélective, s"ouvrir pour permettre le passage de la chemise ou se fermer pour empêcher tout mouvement de la chemise relativement audit orifice d"entrée et constituant un joint sensiblement étanche aux fluides au niveau de l"orifice d"entrée de l"enceinte. Ce clapet se compose d"un corps souple (26) et d"un mécanisme de fonctionnement (14) entrant mécaniquement en contact avec le corps souple afin de fermer ledit clapet.
PCT/GB2001/004620 2000-10-17 2001-10-17 Appareillage pour revêtement intérieur de conduites WO2002035136A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0025425.0 2000-10-17
GB0025425A GB0025425D0 (en) 2000-10-17 2000-10-17 Pipe lining apparatus

Publications (1)

Publication Number Publication Date
WO2002035136A1 true WO2002035136A1 (fr) 2002-05-02

Family

ID=9901451

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/004620 WO2002035136A1 (fr) 2000-10-17 2001-10-17 Appareillage pour revêtement intérieur de conduites

Country Status (2)

Country Link
GB (1) GB0025425D0 (fr)
WO (1) WO2002035136A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011036125A1 (fr) * 2009-09-22 2011-03-31 Statoil Asa Appareil et procédé de chemisage d'un conduit
US8038913B2 (en) 2005-08-17 2011-10-18 Ina Acquisition Corp. Installation of cured in place liners with dual gland air inversion and steam cure apparatus
AU2006239857B2 (en) * 2005-04-25 2012-05-03 Ina Acquisition Corp. Air inversion and steam cure of cured in place liners apparatus and method
CN115871217A (zh) * 2023-03-03 2023-03-31 胜利油田高原石油装备有限责任公司 一种用于油田的内衬油管翻边封口装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1393480A (fr) * 1964-02-11 1965-03-26 Procédé et appareillage pour le revêtement intérieur de tubes
US4064211A (en) 1972-12-08 1977-12-20 Insituform (Pipes & Structures) Ltd. Lining of passageways
GB2021728A (en) * 1978-05-26 1979-12-05 Insituform Ltd Improvements relating to the lining of passageways
WO1995016556A1 (fr) * 1993-12-16 1995-06-22 Ina Acquisition Corporation Appareil d'inversion d'un element flexible tubulaire dans un pipeline ou dans une conduite et procedes permettant cette inversion
US5597353A (en) * 1994-10-07 1997-01-28 Insituform (Netherlands) B.V. Compact apparatus for everting a liner and method
WO1998046929A1 (fr) * 1997-04-14 1998-10-22 Norditubes Technologies Ab Dispositif de reversion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1393480A (fr) * 1964-02-11 1965-03-26 Procédé et appareillage pour le revêtement intérieur de tubes
US4064211A (en) 1972-12-08 1977-12-20 Insituform (Pipes & Structures) Ltd. Lining of passageways
GB2021728A (en) * 1978-05-26 1979-12-05 Insituform Ltd Improvements relating to the lining of passageways
WO1995016556A1 (fr) * 1993-12-16 1995-06-22 Ina Acquisition Corporation Appareil d'inversion d'un element flexible tubulaire dans un pipeline ou dans une conduite et procedes permettant cette inversion
US5597353A (en) * 1994-10-07 1997-01-28 Insituform (Netherlands) B.V. Compact apparatus for everting a liner and method
WO1998046929A1 (fr) * 1997-04-14 1998-10-22 Norditubes Technologies Ab Dispositif de reversion

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006239857B2 (en) * 2005-04-25 2012-05-03 Ina Acquisition Corp. Air inversion and steam cure of cured in place liners apparatus and method
US9453597B2 (en) 2005-04-25 2016-09-27 Ina Acquisition Corp. Air inversion and steam cure of cured in place liners apparatus
US8038913B2 (en) 2005-08-17 2011-10-18 Ina Acquisition Corp. Installation of cured in place liners with dual gland air inversion and steam cure apparatus
US8066499B2 (en) * 2005-08-17 2011-11-29 Ina Acquisition Corp. Dual gland air inversion and steam cure of cured in place liners
TWI382922B (zh) * 2005-08-17 2013-01-21 Ina Acquisition Corp 具有雙氣封墊之空氣倒轉法及利用蒸汽熟化位於適當位置之襯墊
WO2011036125A1 (fr) * 2009-09-22 2011-03-31 Statoil Asa Appareil et procédé de chemisage d'un conduit
CN115871217A (zh) * 2023-03-03 2023-03-31 胜利油田高原石油装备有限责任公司 一种用于油田的内衬油管翻边封口装置
CN115871217B (zh) * 2023-03-03 2023-06-09 山东高原油气装备有限公司 一种用于油田的内衬油管翻边封口装置

Also Published As

Publication number Publication date
GB0025425D0 (en) 2000-11-29

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