WO1989008218A1 - Procede et dispositif de refection d'un systeme de conduites - Google Patents

Procede et dispositif de refection d'un systeme de conduites Download PDF

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Publication number
WO1989008218A1
WO1989008218A1 PCT/SE1989/000077 SE8900077W WO8908218A1 WO 1989008218 A1 WO1989008218 A1 WO 1989008218A1 SE 8900077 W SE8900077 W SE 8900077W WO 8908218 A1 WO8908218 A1 WO 8908218A1
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
liner sleeve
replacement pipe
pipe
applicator
Prior art date
Application number
PCT/SE1989/000077
Other languages
English (en)
Inventor
Roy Mackay
Original Assignee
Ncc Bygg Ab
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 Ncc Bygg Ab filed Critical Ncc Bygg Ab
Publication of WO1989008218A1 publication Critical patent/WO1989008218A1/fr

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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
    • F16L55/179—Devices for covering leaks in pipes or hoses, e.g. hose-menders specially adapted for bends, branch units, branching pipes or the like

Definitions

  • This invention relates to renovation of a duct system, such as a sewer system, comprising a main duct and a branch duct connected with the main duct. More particularly, the invention relates to a method of renovating such a duct system which comprises the steps of inserting a replacement pipe into the main duct, cutting a hole in the replacement pipe opposite the branch duct, and introducing from the interior of the replacement pipe a tubular liner which extends from the inside of the replacement pipe and along the inside of the branch duct over at least part of the full length thereof to provide a seal between the branch duct and the replacement pipe. Moreover, the invention relates to a device for carrying out the method. Although it is not limited to any particular kind of duct system, the invention is particularly useful in connection with underground duct systems or other duct systems which are not readily accessible for interior renovation.
  • the liner is formed of a rubber collar having a flange at one end.
  • a pulling rope is inserted into the branch duct from an access point and fed along the branch duct until it enters the main duct and the hole in the replacement pipe where it is picked up and pulled on to a manhole.
  • the smooth end of the rubber collar is attached to the pulling rope.
  • the collar is pulled along the replacement pipe up to and through the hole until the flange engages the inside of the replacement pipe around the hole. Finally, the pulling rope is caused to release the collar and pulled out of the branch duct.
  • An object of the present invention is to provide a method which can be practiced with access to the branch duct being had only from inside the replacement pipe.
  • a further object is to provide a device for use in carrying out the method.
  • a method of renovating a duct system such as a sewer system, comprising a main duct and a branch duct connected with the main duct, the method comprising the steps of inserting a replacement pipe into the main duct, cutting a hole in the replacement pipe opposite the branch duct, and introducing from the interior of the replacement pipe a tubular lining element which extends from the inside of the replacement pipe and along the inside of the branch duct over at least part of the full length thereof to provide a seal between the branch duct and the replacement pipe, characterised by the steps of inserting into an applicator vessel a liner sleeve of fibrous flexible sheet material impregnated with curable synthetic resin and securing one end of the liner sleeve to the vessel around its mouth, 5 positioning the mouth of the vessel opposite the hole in the replacement pipe, everting the liner sleeve from the vessel into the branch duct and pressing the liner sleeve into firm contact with the wall of the hole in the replacement
  • a device for use in earring out the method comprising a cup-shaped applicator
  • Figs. 1 and 2 are diagrammatic cross-sectional views of an under ⁇ ground sewer pipe system being renovated, Fig. 1 showing an initial step in the application of a liner sleeve for bridging a replacement pipe in a
  • Fig. 3 is a longitudinal cross-section on line III-III of Fig. 1.
  • the diagrammatically illustrated sewer system comprises a main sewer pipe 11 and a branch sewer pipe 12 connected with the main sewer pipe.
  • the replacement pipe may be made of polyethylene or any other suitable material and consists of shorter or longer pipe sections joined in any suitable manner. No detailed descrip ⁇ tion of the insertion of the replacement pipe is necessary, because such
  • communication between the replacement pipe 13 and the branch sewer pipe 12 is established by cutting a hole 14 in the replacement pipe opposite the branch pipe. Such cutting may be carried out using conventional techniques and equipment.
  • the diameter of the hole 14 is approximately equal to the internal diameter of the branch sewer pipe 12.
  • a liner sleeve is applied which extends from the interior of the replacement pipe and along the inside of the branch pipe over at least part of the length of the latter.
  • the device comprises a cup-shaped applicator vessel 15 the height of
  • the applicator vessel 15 Secured to the wall of the applicator vessel 15 is a shank 17 by which the vessel can be attached to a manipulator 18, a so-called robot, **> so that the vessel can be moved along the replacement pipe and positioned as illustrated with the mouth 16 opposite the hole 14. Moreover, the applicator vessel 15 has a connector for a compressed air hose 19, through which compressed air can be fed into the applicator vessel. The movements of the robot, the positioning of the applicator vessel and the TM admission and venting of the compressed air are remotely controlled, e.g. from a manhole.
  • the inflatable bag 20 is sealingly attached to the applicator vessel 15 around the mouth 16.
  • the inflatable bag 20 may be formed of a short length of rubber or plastic tubing one end portion of which is pulled 25 over the outer side of the mouth portion of the vessel and clamped tightly around at by means of a clamping ring 21.
  • the other end portion of the tubing is tied together by means of a string 22 so that air is prevented from escaping.
  • a length of liner sleeve 23 of fibrous flexible sheet material which may be woven or nonwoven, is impregnated with a suitable curable synthetic resin and attached to the applicator vessel 15.
  • a string 24 Any other suitable attachment means (not shown) may be used.
  • the string is tied about the applicator vessel and the liner sleeve such that it can be untied or slackened by pulling a release string 25 from the manhole.
  • the main portion of the liner sleeve 23 is tucked into the applicator vessel 15 together with the inflatable bag 20, see Fig. 1.
  • the end portion of the sleeve may be slitted longitudinally at suitable circumferential intervals.
  • the inflatable bag 20 is maintained in the expanded state until the synthetic resin with which the liner sleeve 23 is impregnated has cured. After the synthetic resin has cured sufficiently to maintain the shape of the liner sleeve 23, the inflatable bag 20 is deflated, the string 24 is released or slackened, and the applicator vessel 15 is withdrawn. In case the inflatable bag 20 adheres too firmly to the liner sleeve 23 to become withdrawn by the movement of the applicator vessel 15 and instead is ripped away from the mouth of the applicator vessel, that part of the inflatable bag which blocks the branch pipe may be removed by application of heat.
  • the string 22 may be attached to the applicator vessel or extended from the applicator vessel such that it can be pulled from the manhole.
  • negative pressure may be applied within the applica- tor vessel to retract the bag into it.
  • the hose 19 can be used.
  • that part of the applied liner sleeve which projects into the replacement pipe 13 may be trimmed away using a cutter tool (not shown) supported by the manipulator 18.
  • compressed air is used to expand the bag 20 to cause it to press the liner sleeve 23 firmly against the wall of the hole 14 of the replacement pipe 13 and the inside of the branch pipe 12.
  • fluids other than air, preferably water, can be used for this purpose.
  • a modified applicator vessel can be used c which is bent such that the part of it remote from the mouth extends b longitudinally of the replacement pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Sewage (AREA)
  • Pipe Accessories (AREA)

Abstract

Le procédé et le dispositif décrits servent à la réfection d'un système de conduites tel qu'un système d'égout collecteur comprenant un tuyau principal (11) et un tuyau de branchement (12). Ledit procédé consiste à introduire un tuyau de remplacement (13) dans le tuyau principal, puis à découper un trou dans le tuyau de remplacement à l'opposé du tuyau de branchement et à introduire depuis l'intérieur du tuyau de remplacement un manchon de revêtement intérieur (23) destiné à occuper l'espace vide entre le tuyau de remplacement et le tuyau de branchement. Le manchon de revêtement intérieur (23) est formé d'un matériau fibreux imprégné avec une résine synthétique polymérisable. L'une des extrémités du manchon est fixée autour de l'ouverture (16) d'un récipient applicateur en forme de coupelle (15) et la partie principale est repliée à l'intérieur du récipient, lequel est ensuite placé à l'opposé du trou (14) ménagé dans le tuyau de remplacement (13). Une pression de fluide est appliquée sur le manchon de revêtement intérieur (23) au moyen d'un sac gonflable (20) placé dans le récipient (15), pour retourner le manchon de revêtement intérieur replié dans le récipient à l'intérieur du tuyau de branchement (12) et l'appliquer contre la paroi du trou (14) ménagé dans le tuyau de remplacement (13) et contre la face intérieure du tuyau de branchement (12). Aprés polymérisation de la résine synthétique, la pression est relâchée et le récipient applicateur (15) est retiré.
PCT/SE1989/000077 1988-02-25 1989-02-23 Procede et dispositif de refection d'un systeme de conduites WO1989008218A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8800653-1 1988-02-25
SE8800653A SE460496B (sv) 1988-02-25 1988-02-25 Saett och anordning foer att renovera ett ledningssystem

Publications (1)

Publication Number Publication Date
WO1989008218A1 true WO1989008218A1 (fr) 1989-09-08

Family

ID=20371487

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1989/000077 WO1989008218A1 (fr) 1988-02-25 1989-02-23 Procede et dispositif de refection d'un systeme de conduites

Country Status (2)

Country Link
SE (1) SE460496B (fr)
WO (1) WO1989008218A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991008417A1 (fr) * 1989-12-01 1991-06-13 Sika Robotics Ag Mise en place telecommandee de coffrages dans des tubes avec bifurcations et embouchures inaccessibles
WO1991016568A1 (fr) * 1990-04-23 1991-10-31 Insituform Group Limited Ameliorations concernant le revetement de canalisations ou passages
EP0506181A1 (fr) * 1991-03-26 1992-09-30 Wavin B.V. Méthode pour le revêtement intérieur d'une liaison entre une tuyau principal et une conduite secondaire en utilisant un manchon extensible en un matériau durcissable et manchon adapté à cet usage
EP0516607A1 (fr) * 1991-05-31 1992-12-02 Le Joint Interne Benelux S.A. Procédé pour l'étanchement par l'intérieur des jonctions entre canalisations principales et branchements latéraux
US5285817A (en) * 1989-01-12 1994-02-15 Sika Robotics Remote-controlled insertion of sheathing in inaccessible manifolds and junctions
US5609439A (en) * 1992-03-06 1997-03-11 Kmg Kanal-Muller-Gruppe International Gmbh & Co. Kg Method of and apparatus for repairing and sealing junctions between mains and branch pipes
US5736077A (en) * 1994-09-28 1998-04-07 Yokoshima & Company Method for lining a manhole
US5816293A (en) * 1996-03-27 1998-10-06 Kiest, Jr.; Larry W. Apparatus for installation of a liner within a pipeline
GB2325294A (en) * 1997-05-12 1998-11-18 Anthony George Poole Forming a branch opening in a lined conduit
US5855729A (en) * 1994-08-19 1999-01-05 Lmk Enterprises Apparatus for providing a tubular material within a pipeline
US5950682A (en) * 1994-08-19 1999-09-14 Lmk Enterprises, Inc. Apparatus and method for repairing the junction of a sewer main line and lateral
US5964249A (en) * 1996-03-27 1999-10-12 Lmk Enterprises, Inc. Apparatus and method for repairing a pipeline
US6337114B1 (en) 1992-09-10 2002-01-08 Insituform (Netherlands) B.V. Flexible lining with flexible collar for lining lateral pipelines
EP3812523A1 (fr) * 2019-10-21 2021-04-28 Predl GmbH Revêtement de fond de puits

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004086A1 (fr) * 1981-05-12 1982-11-25 Rice Nigel Leonard Procede de connexion de tuyaux
US4484602A (en) * 1983-01-17 1984-11-27 Cues, Inc. Packer for sealing lateral lines
GB2147682A (en) * 1983-08-02 1985-05-15 Water Res Centre Robot device
DE3618963A1 (de) * 1986-06-05 1987-12-10 Adolf Prof Dipl Ing Voss Verfahren und vorrichtung zum verbinden eines abwasserkanales mit einem quer einmuendenden hausanschlusskanal oder dergleichen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004086A1 (fr) * 1981-05-12 1982-11-25 Rice Nigel Leonard Procede de connexion de tuyaux
US4484602A (en) * 1983-01-17 1984-11-27 Cues, Inc. Packer for sealing lateral lines
GB2147682A (en) * 1983-08-02 1985-05-15 Water Res Centre Robot device
DE3618963A1 (de) * 1986-06-05 1987-12-10 Adolf Prof Dipl Ing Voss Verfahren und vorrichtung zum verbinden eines abwasserkanales mit einem quer einmuendenden hausanschlusskanal oder dergleichen

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5285817A (en) * 1989-01-12 1994-02-15 Sika Robotics Remote-controlled insertion of sheathing in inaccessible manifolds and junctions
US5423352A (en) * 1989-01-12 1995-06-13 Sika Robotics Ag Remote-controlled insertion of sheathing in inaccessible manifolds and junctions
WO1991008417A1 (fr) * 1989-12-01 1991-06-13 Sika Robotics Ag Mise en place telecommandee de coffrages dans des tubes avec bifurcations et embouchures inaccessibles
WO1991016568A1 (fr) * 1990-04-23 1991-10-31 Insituform Group Limited Ameliorations concernant le revetement de canalisations ou passages
US5975878A (en) * 1990-04-23 1999-11-02 Insituform (Netherlands) B.V. Apparatus for installation of lining with sealing collar
TR25237A (tr) * 1990-04-23 1993-01-01 Insituform Group Ltd Payplaynlarin veya kanallarin astarlanmasi ile il- gili islahat.
AU643019B2 (en) * 1990-04-23 1993-11-04 Insituform Licensees Bv/S.A. Improvements relating to the lining of pipelines or passageways
US5393481A (en) * 1990-04-23 1995-02-28 Insituform (Netherlands) Bv Lining of pipelines or passageways
US6899832B2 (en) 1990-04-23 2005-05-31 Insituform (Netherlands) B.V. Installation of flexible lining with flexible collar for lining lateral pipelines
EP0506181A1 (fr) * 1991-03-26 1992-09-30 Wavin B.V. Méthode pour le revêtement intérieur d'une liaison entre une tuyau principal et une conduite secondaire en utilisant un manchon extensible en un matériau durcissable et manchon adapté à cet usage
EP0516607A1 (fr) * 1991-05-31 1992-12-02 Le Joint Interne Benelux S.A. Procédé pour l'étanchement par l'intérieur des jonctions entre canalisations principales et branchements latéraux
US5609439A (en) * 1992-03-06 1997-03-11 Kmg Kanal-Muller-Gruppe International Gmbh & Co. Kg Method of and apparatus for repairing and sealing junctions between mains and branch pipes
US6337114B1 (en) 1992-09-10 2002-01-08 Insituform (Netherlands) B.V. Flexible lining with flexible collar for lining lateral pipelines
US5855729A (en) * 1994-08-19 1999-01-05 Lmk Enterprises Apparatus for providing a tubular material within a pipeline
US5950682A (en) * 1994-08-19 1999-09-14 Lmk Enterprises, Inc. Apparatus and method for repairing the junction of a sewer main line and lateral
US5736077A (en) * 1994-09-28 1998-04-07 Yokoshima & Company Method for lining a manhole
US5964249A (en) * 1996-03-27 1999-10-12 Lmk Enterprises, Inc. Apparatus and method for repairing a pipeline
US5816293A (en) * 1996-03-27 1998-10-06 Kiest, Jr.; Larry W. Apparatus for installation of a liner within a pipeline
GB2325294A (en) * 1997-05-12 1998-11-18 Anthony George Poole Forming a branch opening in a lined conduit
EP3812523A1 (fr) * 2019-10-21 2021-04-28 Predl GmbH Revêtement de fond de puits

Also Published As

Publication number Publication date
SE460496B (sv) 1989-10-16
SE8800653L (sv) 1989-08-26
SE8800653D0 (sv) 1988-02-25

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