WO1988009897A1 - Procede et appareil de garnissage de passages - Google Patents

Procede et appareil de garnissage de passages Download PDF

Info

Publication number
WO1988009897A1
WO1988009897A1 PCT/GB1988/000435 GB8800435W WO8809897A1 WO 1988009897 A1 WO1988009897 A1 WO 1988009897A1 GB 8800435 W GB8800435 W GB 8800435W WO 8809897 A1 WO8809897 A1 WO 8809897A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
passage
carrier
hardener
soft
Prior art date
Application number
PCT/GB1988/000435
Other languages
English (en)
Inventor
Frank Arthur Hutton
Ronald Charles Thomas Beech
Original Assignee
Frank Arthur Hutton
Ronald Charles Thomas Beech
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 Frank Arthur Hutton, Ronald Charles Thomas Beech filed Critical Frank Arthur Hutton
Publication of WO1988009897A1 publication Critical patent/WO1988009897A1/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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips
    • F16L33/04—Hose-clips tightened by tangentially-arranged threaded pin and nut
    • F16L33/06—Hose-clips tightened by tangentially-arranged threaded pin and nut in which the threaded pin is rigid with the hose-encircling member
    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips
    • F16L33/04—Hose-clips tightened by tangentially-arranged threaded pin and nut
    • 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
    • F16L55/1652—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 pulled into the damaged section
    • F16L55/1654—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 pulled into the damaged section and being inflated
    • 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
    • F16L55/18—Appliances for use in repairing pipes

Definitions

  • the present invention relates to the lining of passages, particularly underground passages such as sewers. It is known to apply a lining of material to a wall of a passage by everting a prepared composite tube of plastics material so that the tube is held against the wall whi lst the pretreated material of the tube cures to a hardened state. This is described in published United Kingdom patent number 1449455. A shortcoming of this method is that the tube has to have two layers, one to keep the pressure medium, which is used for eversion, away from the pretreated material. The process of eversion itself necessari ly means that the thickness of the tube has to be limited. Further the pressure medium, if it is not a cheap material, like water, has to be recovered and this requires recovery apparatus.
  • a method of introducing a soft tube into a long passage consists of laying the tube on a carrier and drawing the carrier into the passage.
  • the carrier may consist of a plurality of flat beds joined together to form a train, or a single long bed or mat.
  • a method of lining a passage consists of forming a tube of soft plastics material which is capable of being hardened over a period of time, laying the tube on to a carrier, drawing the carrier into the passage, inflating the tube into contiguous relationship with the walls of said passage and the surface of the carrier for a sufficient period of time to allow hardening of at least the material near the outer surface of the tube.
  • the material on the outer surface of the tube is treated with a hardener suitable for such soft plastics material before being laid on said carrier.
  • a hardener suitable for such soft plastics material before being laid on said carrier.
  • the surface may be treated with hardener subsequent to introduction into the passage.
  • the hardener may be incorporated in the bulk of the material of the tube prior to or during forming of the latter.
  • the curing may be completed by the application of hardener to the inner surface of the tube after removal of the inflation pressure.
  • the hardening process may be initiated and completed by elevating the temperature of the tube material whilst it is still inflated. This can be done by using or substituting steam as the inflating medium.
  • apparatus for introducing a soft tube into a long passage comprises a carrier having a high longitudinal strength and so shaped as to be able to constitute an alternative floor to the floor of the passage.
  • the carrier comprises a succession p i flat beds joined to each other by a coupling capable of sustaining high tension loads.
  • the carrier comprises a single elongated bed or mat incorporating a draught sustaining longitudinal reinforcement.
  • Figure 1 shows an underground sewer into which a carrier consisting of a train of flat beds and a tube are being introduced
  • Figure 2a shows a side elevation of a flat bed
  • Figure 2b shows an end elevation of the flat bed of figure 2a viewed in the direction of arrow A
  • Figure 3 shows an elevation simi lar to Fig 2b of an alternative flat bed
  • Figure 4 shows a cross section through a carrier formed by a mat
  • Figures 5a and 5b show views of a quick coupling for attaching two flat beds together
  • Figures 6a,b,and c show steps i llustrating the inventive method.
  • Figures 7a,b and c show three steps i llustrating a second variant of the method
  • Figures 8a b andc show three steps illustrating a third variant of the invention and _*
  • Figure 9 illustrates the use of end fittings.
  • a sewer is represented by a passage 1 extending from an entry pit 2 to a terminal pit 3 both of which are excavated so as to expose the ends of the sewer, which is to be relined.
  • a wire hawser 4 is fed into the passage 1 from pit 3 to emerge at entry pit 2. It is attached to the front of the first flat bed 5a. This has at its front end a clamp for holding gently the free end of a soft tube 6 of plastics material folded lengthwise to lay conveniently within the width of the flat beds 5a,b,c et seq. which constitute the carrier
  • the hawser is pulled so as to draw the bed 5a into the passage 1 and as it enters a second bed 5b is coupled manually to it, which in turn is drawn in.
  • a pulley 7, mounted on a suitable stand is placed in the terminal pit 3 to align the hawser with the passage 1.
  • each flat bed consists of a deck 8 which may be supported in the passage 1 by a contoured roller 10 at each end trunnioned on a pair of downwardly extending ribs 9 as shown in fig.2b.
  • the rollers 10 are designed to deflect when pressure is applied to the deck 8 and allow the ribs 9 to seat along the whole of their Length on the passage and serve as a substitute floor.
  • Fig.3 conveniently shows how the support may simply consist of a pair of angled skids 11. It also illustrates how the tube 6 may be folded and laid on the carrier.
  • Fig 4 shows a cross section through a carrier which is a relatively flexible mat 31 capable of bowing to the contour of the passage 1.
  • Strips 32 are adhesively embedded in the mat 31 and extend throughout its length. These may be of any marerial capable of taking tensi le Load and could be metal or fabric. The number of strips 32 and their size are chosen depending on the size of the soft tube 6 to be carried and the maximum length of passage to be lined on a given occasion.
  • the mat 31 may carry a soft tube 6 of thermosett i ⁇ g material.
  • Fig 5a is a plan view on the decks 8 of the beds 5a and 5b.
  • the tai l end of bed 5a has has an elongated socket 13 which is capable of recieving in an interlocking manner a double curved tang 14 projecting from the front of bed 5b.
  • fig.5b which is a cross section on Line BB in fig 5a
  • the bed 5b has to be elevated at an angle to engage the tang 14 with the socket 13 but whi lst the two beds remain longi udinally aligned they wi ll not separate.
  • the beds 5 are made of the cheapest possible material consistent with strength and resistance to chemical attack.
  • the first and last . bed of the train of beds be shorter than the others and shall be easi ly detachable to allow the placement of end fittings capable of allowing inflation connectors and attachment to other end fittings.
  • fig 6a the tube 6 is shown in a deflated and folded condition on its carrier 5 within the passage 1. End fittings,not shown, are fitted to the ends to close these off and enable it to be inflated. The inflation is commenced and, when it reaches a stage such as is shown in fig 6b in which there is still a free space 15, a draw wire is used to pull a spray head 16 secured to a feed pipe 17 along the Length of the passage 1.
  • a perforated pipe 18 may be attached lengthwise to the top of the tube 6 during or soon after it is formed.
  • This embodiment is shown in fig.7a,b and c.
  • the pipe 18 perforated along its whole length is adhered to what will become the top of tube 6 whilst the latter is still soft.
  • the tube 6 is inflated as before so that it takes on a more rounded form and hardener, pumped through the pipe 18 and out of the perforations flows smoothly over the tube 6.
  • the tube 6 is fully inflated as before and no attempt is made to withdraw pipe 18.
  • the pipe 18 might be constituted by a woven pipe of relatively loose weave so that the hardening promoting chemical effuses from it on pressurising
  • the interior of the tube 6 is treated with hardener by drawing a soft wheeled carriage, on which is mounted a 360 degree spray head for the chemical, through the tube whi 1st spraying.
  • a jaw 33 defines a slot 34 into which the free squared end of the mat 31 described with reference to fig. , fits.
  • the jaw 33 has a ring 36 fixed to it at one end to receive the shackle 35 of the hawser 4.
  • the end of soft tube 6,in this case being of a thermosetti ⁇ g material is folded lengthwise and laid on the aw 33 or a shield 38 attached to it and the remainder of the length of tube 6 is laid on to the mat 31 as it is drawn into the passage by the j aw 33.
  • Fig.8b shows an enlarged view of a longitudinal cross section on line CC of the jaw 33 as seen in fig.8c and the latter is a cross section on line DD in fig.8b. From these figures it can be seen that jaw 33 has three through holes 37 which line up with strips 32 so that a dri ll inserted, in turn, into each of holes wi ll bore a hole 38 through the mat 31 and the strips 32. Pins 39 pushed through the holes 37 and 38 wi ll transmit draught load from the jaw 33 to the mat .
  • the carrier (5,31) is arranged to be somewhat shorter than the Length of the passage 1 by an amount to allow for the insertion into the passage of a sleeve 40 having a flange 46.
  • This may serve the purpose of mounting an adaptor plate 41 which is arranged to carry suitable air connectors 42,steam connectors 43, pressure gauges 44 and temperature gauges 45 for use during the inflating and hardening stages it being understood that whi lst air would be used to inflate the tube into firm contact with the walls of the passage, steam would be substituted during the hardening period in the case of use of t he rmosett i ng tube ateri a I .
  • the adaptor plate 41 Following hardening the adaptor plate 41 would be removed and the flange 46 of sleeve 40 would be avai lable for fastening a connecting piece 47 to join up with a corresponding flange 46 protruding from the next section of passage .
  • the thickness of the tube 6 wi ll be between 2 and 8 millimetres but the scope of the invention is not limmited by these dimensions.
  • the benefits conferred by the invention are considerable and allow renovation of existing sewers without the expense and public disturbance involved in excavating as in the present practice.
  • a further benefit is the abi lity to line a new sewer or other under or over ground passage with a thin, inert liner making the whole of the passage resistant to corrosion or other attack and allowing the possibi lity of using cheaper passage construction material.

Landscapes

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

Abstract

Un chariot (5, 31) est utilisé pour introduire un long tube (6) en matériau plastique mou dans un passage (1) dont l'intérieur est destiné à être regarni, le matériau étant trop mou pour résister aux forces de traction engendrées par son propre poids. Le chariot (5, 31) se transforme en plancher de substitution lorsque le tube est gonflé pour entrer en contact avec les parois du passage (1) et durci dans cette position.
PCT/GB1988/000435 1987-06-03 1988-06-02 Procede et appareil de garnissage de passages WO1988009897A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8712954 1987-06-03
GB878712954A GB8712954D0 (en) 1987-06-03 1987-06-03 Apparatus for lining passages

Publications (1)

Publication Number Publication Date
WO1988009897A1 true WO1988009897A1 (fr) 1988-12-15

Family

ID=10618295

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1988/000435 WO1988009897A1 (fr) 1987-06-03 1988-06-02 Procede et appareil de garnissage de passages

Country Status (4)

Country Link
EP (1) EP0365548A1 (fr)
JP (1) JPH03503560A (fr)
GB (1) GB8712954D0 (fr)
WO (1) WO1988009897A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218490A (en) * 1988-04-13 1989-11-15 Nu Pipe Inc Lining pipes
GB2219062A (en) * 1988-05-05 1989-11-29 Wiederaufarbeitung Von Kernbre Apparatus for installing or removing a pipeline duct by remote-control operation
WO1990004737A1 (fr) * 1988-10-20 1990-05-03 Frank Arthur Hutton Procede et appareil pour renover les canalisations
WO1992001552A1 (fr) * 1990-07-25 1992-02-06 Manfred Schmidt Procede de revetement interieur de canalisations
EP0510306A1 (fr) 1991-04-20 1992-10-28 TEERBAU GmbH Procédé et dispositif pour fabrication d'un tuyau plastique armé durcissable
US6024910A (en) * 1996-06-06 2000-02-15 Shonan Gosei-Jushi Seisakusho K.K. Method for lining a tubular conduit
WO2008014084A3 (fr) * 2006-07-24 2008-05-02 Shell Oil Co Pipeline
EP2113708A1 (fr) * 2008-05-02 2009-11-04 Shonan Gosei - Jushi Seisakusho K.K. Matériau linéaire et procédé de pipeline linéaire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2258581A1 (fr) * 1974-01-21 1975-08-18 Ross Louis
DE2728056A1 (de) * 1977-06-22 1979-01-11 Arikan Geb Kartan Sevinc Verfahren zum nachtraeglichen anbringen einer schutzhuelle an den innenwandflaechen von rohrfoermigen bauwerken, insbesondere betonrohren, mit kleinen und sehr kleinen querschnittsabmessungen, zwecks abdichtung und/oder ausbildung eines innenflaechenschutzes
GB2018384A (en) * 1978-04-05 1979-10-17 Cahuzac D Sheath for forming an internal lining for a conduit and a process for using the sheath

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2258581A1 (fr) * 1974-01-21 1975-08-18 Ross Louis
DE2728056A1 (de) * 1977-06-22 1979-01-11 Arikan Geb Kartan Sevinc Verfahren zum nachtraeglichen anbringen einer schutzhuelle an den innenwandflaechen von rohrfoermigen bauwerken, insbesondere betonrohren, mit kleinen und sehr kleinen querschnittsabmessungen, zwecks abdichtung und/oder ausbildung eines innenflaechenschutzes
GB2018384A (en) * 1978-04-05 1979-10-17 Cahuzac D Sheath for forming an internal lining for a conduit and a process for using the sheath

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218490A (en) * 1988-04-13 1989-11-15 Nu Pipe Inc Lining pipes
GB2218490B (en) * 1988-04-13 1992-12-02 Nu Pipe Inc Method and apparatus for installing a replacement pipe in an existing underground conduit
GB2219062A (en) * 1988-05-05 1989-11-29 Wiederaufarbeitung Von Kernbre Apparatus for installing or removing a pipeline duct by remote-control operation
WO1990004737A1 (fr) * 1988-10-20 1990-05-03 Frank Arthur Hutton Procede et appareil pour renover les canalisations
WO1992001552A1 (fr) * 1990-07-25 1992-02-06 Manfred Schmidt Procede de revetement interieur de canalisations
EP0510306A1 (fr) 1991-04-20 1992-10-28 TEERBAU GmbH Procédé et dispositif pour fabrication d'un tuyau plastique armé durcissable
US6024910A (en) * 1996-06-06 2000-02-15 Shonan Gosei-Jushi Seisakusho K.K. Method for lining a tubular conduit
WO2008014084A3 (fr) * 2006-07-24 2008-05-02 Shell Oil Co Pipeline
EP2113708A1 (fr) * 2008-05-02 2009-11-04 Shonan Gosei - Jushi Seisakusho K.K. Matériau linéaire et procédé de pipeline linéaire

Also Published As

Publication number Publication date
JPH03503560A (ja) 1991-08-08
GB8712954D0 (en) 1987-07-08
EP0365548A1 (fr) 1990-05-02

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