WO2001054891A1 - Dispositif et procede de production d'un tuyau d'assainissement durcissable multicouche - Google Patents

Dispositif et procede de production d'un tuyau d'assainissement durcissable multicouche Download PDF

Info

Publication number
WO2001054891A1
WO2001054891A1 PCT/DE2001/000201 DE0100201W WO0154891A1 WO 2001054891 A1 WO2001054891 A1 WO 2001054891A1 DE 0100201 W DE0100201 W DE 0100201W WO 0154891 A1 WO0154891 A1 WO 0154891A1
Authority
WO
WIPO (PCT)
Prior art keywords
expansion element
film tube
film
hose
tube
Prior art date
Application number
PCT/DE2001/000201
Other languages
German (de)
English (en)
Inventor
Ralf Odenwald
Lars Quernheim
Dietmar Voigt
Norbert Hain
Klaus-Dieter Fischer
Original Assignee
Bkp Berolina Polyester Gmbh & Co. Kg
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 Bkp Berolina Polyester Gmbh & Co. Kg filed Critical Bkp Berolina Polyester Gmbh & Co. Kg
Priority to AU39132/01A priority Critical patent/AU3913201A/en
Publication of WO2001054891A1 publication Critical patent/WO2001054891A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
    • B29C63/06—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like around tubular articles
    • B29C63/065—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like around tubular articles continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible
    • B29L2023/006—Flexible liners

Definitions

  • the invention relates to a device for producing a curable multi-layer rehabilitation hose on a conveyor line, with a route section on which a liquid-tight film hose is supplied as the inner layer of the renovation hose, and with subsequent route sections on which further hose layers are handled around the film hose and at least one intermediate layer is impregnated with curable material, a widening element located in the film tube being held back in the conveying direction by a retaining means without contact on a stretch of line, and a method for producing a curable multi-layer rehabilitation hose, whereby at least one widening element is initially threaded through the thread during the initial threading of the film hose open tube end is inserted into the film tube and is held contactlessly on a conveyor section in the conveying direction.
  • Such a device and a corresponding manufacturing method have become known for example from DE 44 27 633 AI.
  • Damaged pipelines that cannot be walked on can be rehabilitated using so-called relining processes, in which a rehabilitation hose consisting of hardenable molding compounds is used a defective pipe is drawn in and cured into a new pipe.
  • a multi-layer rehabilitation hose with a film hose (referred to as an inner calibration hose) as an inner layer, with an outer layer and in between with several intermediate layers, which are impregnated with hardenable material, is produced in a conveyor line.
  • the previously flat inner calibration hose is opened to its full diameter by means of a hose unfolding device, the hose unfolding device being held back in the conveying direction of the rehabilitation hose by means of a holding band provided in the inner calibration hose.
  • the retaining band which is anchored at the other end at the beginning of the conveyor line, must first be passed through the entire inner calibration hose until it is threaded into the conveyor line together with it and at its free end holds the hose deployer stationary within the inner calibration hose. Since with this method the tether cannot be continuously inserted into the inner calibration hose, only inner calibration hoses with such a short length can be used that the tether can still be passed through manually and the inner calibration hose can still be gathered on the tether.
  • the advantage achieved by the invention is that no tether extending within the film tube is required.
  • a film tube of any length can be widened by the expansion element once inserted, which enables continuous processing or further processing of the film tube.
  • the maximum processable tube length is then only determined by the length of the supplied film tube.
  • the retaining means can be a deflection roller provided for the film tube.
  • the expansion element can also be safely retained in the conveying direction in a downwardly conveyed film tube. It goes without saying that the expansion element is correspondingly rigid and dimensioned accordingly, so that it cannot overcome the deflection in the conveyed film tube.
  • a constriction which restricts the at least one expansion element, can also be provided, through which the film tube is conveyed.
  • the expansion element is preferably retained in the constriction either in the area of the two longitudinal edges or the two flat sides of the film tube.
  • the two tube sides of the film tube which abut one another are completely separated from one another.
  • the electrostatic forces which generally act between the two tube sides are at least reduced and the negative pressure which inevitably arises when the foil tube is opened again is reduced.
  • the expansion element is rotationally symmetrical at right angles to the conveying direction of the film tube.
  • the expansion element can e.g. a ring, a circular disc or a ball, so that the expansion element is freely rotatable about its rotational symmetry axis within the film tube while maintaining the opening effect.
  • the outer surface of the processing element interacting with the film tube is edge-free, in particular round, so as not to damage the film tube.
  • an anti-rotation device can be provided on the expansion element, which prevents the expansion element from rotating within the film tube.
  • Such a rotation of the expansion element is also effectively prevented in that the length of the expansion element in the conveying direction is greater than the maximum opening width to which the film tube can be expanded to a maximum when the expansion element is inserted.
  • the conveying direction of the film tube asymmetrical weight distribution of the expansion element, so that the orientation of the expansion element is predetermined by its heavier half arranged at the bottom.
  • the expansion element is preferably a supply roll, from which a wound flexible longitudinal material unwinds into the film tube when it is being conveyed.
  • This longitudinal material can e.g. a cord, an electrical cable, a smaller inner tube, a tape, etc.
  • the length of the longitudinal material corresponds to the length of the film tube used, so that both end at the same time and can be replaced in a single step.
  • the expansion element can advantageously also be used to guide a longitudinal material (cord, electrical cable, smaller inner tube, etc.) that is also conveyed with the film tube, in that at least one passage guide or guide opening for the longitudinal material is provided in the expansion element.
  • the above-mentioned object is achieved according to the invention in the production method mentioned at the outset in that the expansion element is retained by a deflection arranged downstream in the conveying direction.
  • the expansion element is preferably held between two deflections provided for the film tube.
  • the film tube is preferably opened by the expansion element over its entire inner circumference in order to at least reduce the electrostatic forces acting between the two tube sides and to reduce the negative pressure which arises in the film tube when it is opened again.
  • the film tube can be widened by an expansion element before and / or after the impregnation of its intermediate layer (s).
  • the invention also relates to a rehabilitation hose produced by the method described above.
  • Figure 1 is a longitudinal section through a conveyor line for producing a multi-layer curable renovation hose, the respective cross section along the conveyor line is also shown.
  • Figure 2 is a plan view of the film tube of the rehabilitation hose corresponding to II in Fig. 1.
  • FIGS. 3 to 5 longitudinal or cross-sections through further exemplary embodiments of conveyor lines for a flat film tube, each in the region of an annular expansion element;
  • FIGS. 6 and 7 still further exemplary embodiments of conveyor lines for a film tube, in each case in the area of an annular expansion element and in a plan view corresponding to FIG. 2; and 8 shows a further exemplary embodiment of a conveyor line for a flat film tube in the region of a fork-shaped expansion element in a view according to FIG. 3.
  • Fig. 1 denotes a supply roll, on which a thin film tube 2 made of liquid-tight plastic is wound flat.
  • a thin film tube 2 made of liquid-tight plastic is wound flat.
  • the two tube sides 2a, 2b of the foil tube 2 lie completely against one another, with electrostatic attractive forces generally acting between the two tube sides 2a, 2b.
  • the film tube 2 which is continuously unwound from the supply roll 1 in the conveying direction 3, passes through a conveying path on which it is deflected several times via deflections 4, 5, 6, 7, 8 (shown schematically as deflection rolls).
  • deflections 4, 5, 6, 7, 8 shown schematically as deflection rolls.
  • the expansion elements 9, 11, 12 are each circular metal rings, the outer circumference (outer diameter) of which is only slightly smaller than the inner circumference of the film tube 2. These expansion elements 9, 11, 12 are placed parallel to the two tube sides 2a, 2b, ie flat, between these tube sides 2a, 2b in the film tube 2. As cross section B shows, the film tube 2 is expanded by the expansion elements 9, 11, 12 to their ring thickness. opens.
  • the expansion element 10 is a supply roll, from which a flexible longitudinal material 13 (for example a cord or a cable) wound thereon unwinds into the film tube 2 when it is being conveyed (cross section C) and is also conveyed with the film tube 2.
  • the expansion element 12 is in the magnetic field of a magnet 14 and the expansion element 11 at the deflection 7 in the film tube 2 in the conveying direction 3 held back without contact.
  • the film tube 2 is held on the conveyor line under such tension and / or deflected at such an angle that the two tube sides 2a, 2b on the deflections 4, 6, 7 do not match the strength of the respective expansion elements 9, 10 , 11 can be opened and / or that the deflection radii of the film tube 2 at these deflections are each significantly smaller than the axial length of the expansion elements 9, 10, 11.
  • an air supply is also added to the interior of the tube, so that when the film tube 2 is opened there is no negative pressure which would lead to the two tube sides 2a, 2b sticking again. If this air supply is used up, the film tube 2 is pierced, filled with compressed air and then the piercing point is closed again.
  • the film tube 2 is inserted on a supply line 15, which is held in a stationary manner, into a tube 17, which is held in a stationary manner above the base 16.
  • a material web 19 (for example a glass fiber web) is drawn off from a supply roll 18, deflected via a deflection roller 20 and on the Tube 17 folded over to an intermediate layer 21, the two end edges of which overlap one another (cross section D).
  • a liquid-tight material web 23 (for example a film web) is drawn off from a supply roll 22, deflected via a deflection roll 24 and turned over on the intermediate layer 21 to an outer layer 25, the two end edges of which also overlap one another (cross section E). These two end edges are closed to one another in a liquid-tight manner by means of a device (not shown) by means of a weld seam (cross section F).
  • the now multi-layer hose is conveyed downwards, vertically downwards in the exemplary embodiment shown.
  • the annular space 27 present between the film tube 2 and the outer layer 25 is filled with hardenable resin 28 via the feed line 15 and the intermediate layer 21 is thus impregnated with resin 28.
  • the curable rehabilitation hose 29 with the cross section G is completed.
  • the widening elements 11, 12 also serve to guide the longitudinal material 13.
  • through openings or guide openings 30 are provided in the widening elements 11, 12 on opposite ring sections, through which the longitudinal material 13 initially starts in the conveying direction 3 was threaded through.
  • FIG. 3 shows another conveyor section for the film tube 2, which here is completely expanded to its round opening cross section via an annular expansion element 31.
  • the expansion element 31 was loosely inserted into the film tube 2 via the open tube end and then upright between two Deflection rollers 32, 33 placed with so much play on the floor 16 that the film tube 2 can run between the deflection rollers 32, 33 and the expansion element 31.
  • the expansion element 31 is held in the film tube 2 without contact.
  • the film tube 2 is thus opened to the outer diameter of the annular expansion element 31.
  • the weight of the expansion element 31 is chosen so heavy that the expansion element 31 cannot be lifted out of its position between the deflection rollers 32, 33 by the film tube 2.
  • the annular expansion element 31 is retained at the nip of two rollers 34, between which the film tube 2 is conveyed flat. Since the gap width is smaller than the ring thickness of the expansion element 31, the expansion element 31 cannot overcome this constriction.
  • FIG. 5 shows a further conveying section in which the film tube 2 is conveyed into the plane of the drawing perpendicularly to it and between two lateral stops 35. Since their spacing is smaller than the diameter of the expansion element 31, the expansion element 31 is retained at the two stops 35 in the region of the two longitudinal edges 2c of the film tube 2 in the conveying direction 3.
  • the two stops 35 are preferably rotationally symmetrical and rotatable about their axis of symmetry oriented perpendicular to the conveying plane of the flattened film tube 2.
  • the stops 35 are set in rotation.
  • Rotation bodies are preferably used as the stop 35, the outer contour of which tapers on both sides towards the axial center. This has the advantage that the ring-shaped opening Adjust the expansion element 31 and thus also the film tube 2 automatically to the axial center of the stops 35.
  • the stops 35 are designed as single-shell hyperboloids or as cones.
  • FIGS. 6 and 7 show conveyor sections in which the expansion element is prevented from rotating within the film tube about an axis perpendicular to the plane of the drawing.
  • the expansion elements serve to guide the longitudinal material 13 that is also conveyed, a rotation of the expansion element would inevitably lead to a malfunction in the production process.
  • the circular expansion element 11, 12 is extended in the conveying direction 3 by two extensions 36, which protrude from the expansion element tangentially to its outer circumference and parallel to one another.
  • These two extensions 36 can be integral with the expansion element or separate parts, such as e.g. Bars connected to the expansion element.
  • the annular expansion element 37 shown in FIG. 7 with its guide openings 38 is prevented from rotating within the film tube 2 by its cross section. This is because the length of the expansion element 37 in the conveying direction 3 is greater than the maximum opening width to which the film tube 2 can be expanded to a maximum when the expansion element 37 is inserted. As a result, the expansion element 37 in the film tube 2 cannot be rotated by more than 90 °.

Landscapes

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

Abstract

La présente invention concerne un dispositif de production d'un tuyau d'assainissement multicouche durcissable (29) sur une voie de transport. Cette voie de transport présente une section de voie, sur laquelle est amené un film tubulaire étanche aux liquides (2) qui sert de couche interne pour le tuyau d'assainissement (29), ainsi que des sections de voie suivantes, sur lesquelles d'autres couches tubulaires (21, 25) sont appliquées autour du film tubulaire (2) et au moins une couche intermédiaire (21) est imprégnée d'un matériau durcissable (28). Selon cette invention, sur une section de voie, un élément d'élargissement (9, 10, 11, 12), qui se trouve dans le film tubulaire (2), est retenu sans contact, au moyen d'un système de retenue, dans la direction de transport (3). Sur la section de voie comprenant l'élément d'élargissement (9, 10, 11, 12), une déviation (4, 6, 7) destinée au film tubulaire (2) sert de système de retenue et retient l'élément d'élargissement (9, 10, 11, 12) situé dans le film tubulaire (2) dans la direction de transport (3).
PCT/DE2001/000201 2000-01-25 2001-01-18 Dispositif et procede de production d'un tuyau d'assainissement durcissable multicouche WO2001054891A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU39132/01A AU3913201A (en) 2000-01-25 2001-01-18 Device and method for producing a tubular multi-layer curable repair liner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000102960 DE10002960C2 (de) 2000-01-25 2000-01-25 Vorrichtung und Verfahren zum Herstellen eines mehrlagigen aushärtbaren Sanierungsschlauchs
DE10002960.4 2000-01-25

Publications (1)

Publication Number Publication Date
WO2001054891A1 true WO2001054891A1 (fr) 2001-08-02

Family

ID=7628576

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/000201 WO2001054891A1 (fr) 2000-01-25 2001-01-18 Dispositif et procede de production d'un tuyau d'assainissement durcissable multicouche

Country Status (3)

Country Link
AU (1) AU3913201A (fr)
DE (1) DE10002960C2 (fr)
WO (1) WO2001054891A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1547745A1 (fr) * 2003-12-23 2005-06-29 BKP Berolina Polyester GmbH & Co. KG Tuyau réticulable ainsi que dispositif et procédé pour sa fabrication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015103705U1 (de) 2015-07-15 2015-07-27 Bkp Berolina Polyester Gmbh & Co. Kg Schlauchliner mit einer Furanharz-imprägnierten Schlauchlage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437537A (en) * 1964-06-09 1969-04-08 Takezo Takada Method and apparatus for making tubes of woven fiber impregnated by a high polymeric compound
US4871413A (en) * 1985-02-21 1989-10-03 Ashinori Industry Co., Ltd. Apparatus for manufacturing tubular lining material
US5466210A (en) * 1994-03-23 1995-11-14 Reynolds Metals Company Apparatus for opening tube material
JPH10235736A (ja) * 1997-02-28 1998-09-08 Shonan Gosei Jushi Seisakusho:Kk 管ライニング材及びその製造方法
EP0872318A2 (fr) * 1997-04-15 1998-10-21 BKP Berolina Polyester GmbH & Co. KG Procédé et dispositif d'imprégnation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4109885A1 (de) * 1991-03-26 1992-10-01 Wintermantel Erich Dipl Volksw Verfahren zur herstellung von hohlprofilen aus mehrlagigen vormaterialien, insbesondere aus geweben, gewirken, gelegen und bahnen sowie nach diesen verfahren hergestellte hohlprofile
DE4427633C2 (de) * 1993-08-13 1996-07-18 Baumann Charles Henri Schlauch zur Herstellung eines Rohrs oder einer Rohrauskleidung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437537A (en) * 1964-06-09 1969-04-08 Takezo Takada Method and apparatus for making tubes of woven fiber impregnated by a high polymeric compound
US4871413A (en) * 1985-02-21 1989-10-03 Ashinori Industry Co., Ltd. Apparatus for manufacturing tubular lining material
US5466210A (en) * 1994-03-23 1995-11-14 Reynolds Metals Company Apparatus for opening tube material
JPH10235736A (ja) * 1997-02-28 1998-09-08 Shonan Gosei Jushi Seisakusho:Kk 管ライニング材及びその製造方法
US6042668A (en) * 1997-02-28 2000-03-28 Shonan Gosei-Jushi Seisakusho K.K. Pipe liner bag and manufacturing methods therefor
EP0872318A2 (fr) * 1997-04-15 1998-10-21 BKP Berolina Polyester GmbH & Co. KG Procédé et dispositif d'imprégnation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1547745A1 (fr) * 2003-12-23 2005-06-29 BKP Berolina Polyester GmbH & Co. KG Tuyau réticulable ainsi que dispositif et procédé pour sa fabrication

Also Published As

Publication number Publication date
DE10002960A1 (de) 2001-08-02
AU3913201A (en) 2001-08-07
DE10002960C2 (de) 2002-06-27

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