EP1948990A1 - Einlegeschlauch zum auskleiden von rohrleitungen und kanälen insbesondere von abwasserkanälen - Google Patents
Einlegeschlauch zum auskleiden von rohrleitungen und kanälen insbesondere von abwasserkanälenInfo
- Publication number
- EP1948990A1 EP1948990A1 EP06818494A EP06818494A EP1948990A1 EP 1948990 A1 EP1948990 A1 EP 1948990A1 EP 06818494 A EP06818494 A EP 06818494A EP 06818494 A EP06818494 A EP 06818494A EP 1948990 A1 EP1948990 A1 EP 1948990A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- insert tube
- fibers
- tube
- thickness
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
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
- F16L55/1656—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 materials for flexible liners
Definitions
- the invention relates to an insert tube for lining pipes and channels, in particular for lining sewers, according to the preamble of claim 1.
- the associated costs and downtime are unacceptable in many cases, especially in underground canals or pipelines.
- a technique has developed in which an insert tube is drawn into the channel to be reconstructed.
- the insert tube is impregnated with a curable reaction mass and, after being drawn into the reconstructing channel, brought into abutment with the inside of the channel. Subsequently, the reaction mass is cured and the cured insert tube forms a liquid-tight and usually gas-tight pipe inside the channel.
- Such insertion tubes are known, for example, from WO 00/50801 A2.
- the known insertion tube has several layers, the each formed of glass fibers and impregnated with a thermosetting resin.
- Typical lengths of such insertion tubes are between 30 and 60 m, but can also be up to 250 m and more.
- the diameter of the channels to be reconstructed is typically between 100 and 1200 mm, but may also be more or less.
- Channels of very high quality can be reconstructed with the known insertion tubes and in the hardened state the insertion tubes have an extremely high chemical and mechanical resistance.
- the invention has for its object to provide an insertion tube, which is further improved in terms of efficiency and functionality.
- the manufacturing costs for the insert tube should be reduced.
- the laying properties should be further improved.
- the object is in an insertion tube for lining of pipes and channels, in particular of sewers, wherein the insert tube has at least two layers, of which at least one first layer of fibers of an inorganic material and can be impregnated with a curable reaction mass, achieved in that in the direction from the inside to the outside, based on a longitudinal axis of the insertion tube, an additional layer adjoins an inner first layer, which is impregnable with the curable reaction mass and whose proportion of fibers of an inorganic material is less than 100%.
- the superimposed layers of different material are of moderate composition in the present invention.
- the first layer comprising fibers of an inorganic material joins another layer whose fibers are preferably made entirely of an organic material, for example polypropylene threads or polyester threads.
- an organic material for example polypropylene threads or polyester threads.
- several layers of different compositions may be arranged one above the other, wherein the thickness of the different layers may be different.
- first layers alternate with fibers of an inorganic material with further layers whose proportion of fibers of an inorganic material is less than 100%, in particular those other layers whose fibers consist of polymeric plastic fibers.
- the insertion tube has a three-layered construction, with an inner first layer, an outer first layer and an intermediate further layer. On the inside and / or the outside of the insert tube, in each case a liquid-tight tubular film may be provided, so that the layers of the insert tube are enclosed between an inner plastic tube and an outer plastic tube. By filling the curable reaction mass between the inner and outer plastic tube, the layers can be impregnated, that is impregnated with the curable reaction mass.
- the required mechanical and / or chemical resistance can be provided specifically at the points where it is required in the application.
- the first layers with the fibers of an inorganic material which may be formed for example by glass fibers, provide a high mechanical and / or chemical resistance and can therefore be used in particular as an inner and outer layer of the insert tube.
- glass fibers and other fibers can be used from an inorganic material, in particular carbon fibers or the like.
- the orientation of the fibers of the first layer is predominantly or completely longitudinally and / or circumferentially, each with respect to the longitudinal axis of the insert tube. This ensures a high tensile strength of the insert tube in the longitudinal direction and / or in the circumferential direction, in particular in the cured state.
- the first layer may in this case be composed of several partial layers, of which, for example, a first partial layer has predominantly or completely fibers which are aligned in the longitudinal direction, and a second partial layer has predominantly or completely fibers which are aligned in the circumferential direction.
- the two or more partial layers can be connected to each other via stitching threads. It is also possible that one or more first layers predominantly or completely comprises fibers which are in
- Longitudinal direction are aligned while one or more other first layers predominantly or completely having fibers that are aligned in the circumferential direction.
- the high mechanical and / or chemical resistance is not required over the entire thickness of the insert tube, can be for the material of the further layer, which is located between the inner and the outer first layer, with respect to the mechanical and / or chemical Resistance lower grade material can be used.
- nonwovens, felts, woven fabrics, knitted fabrics, knitted fabrics or the like can be used from polymer plastic threads, for example polyester-containing or polypropylene-containing nonwovens or felts.
- proportion of fibers of an inorganic material may, if necessary, also have a proportion of fibers of an inorganic material, in particular a proportion of less than 50 wt.% And preferably less than 10 wt.%; In many cases, the proportion of fibers of an inorganic material in the further layer may also be zero. It is also possible to use other impregnable materials for the further layer, for example also of open-celled foams.
- the different layers are all impregnated with the same curable reaction mass, such as a synthetic resin, such as a polyester resin.
- the composition of the resin is chosen such that the curing is effected by ultraviolet radiation, preferably by radiation in a wavelength range between 350 and 450 nm, in particular between 380 and 420 nm.
- the composition of the resin can be chosen such that the Curing takes place thermally with hot water or an air-steam mixture.
- the exact curing curve is matched to the resin formulation. The heating rates and / or residence times at a certain temperature, hence the temperature-time relationship, is matched to the composition of the resin.
- the first layers in particular ensure a mechanically high tensile strength in the longitudinal direction and / or in the circumferential direction, relative to a longitudinal axis of the insertion tube.
- the corresponding tensile strength in the longitudinal direction and / or in the circumferential direction of the further layer is lower.
- this can also be partially compensated, if necessary, by the proportion of the curable reaction mass absorbed by the further layer being higher than the percentage of the curable reaction mass absorbed by the first layer.
- Another advantage is that the more location one
- Spacer forms for the inner and outer subsequent first layers can be produced with an opposite to the known insertion tube smaller proportion of fibers from an inorganic material insertion tube having sufficient mechanical and / or chemical resistance, at the same time ensure the required after curing of the insert tube minimum wall thickness, and yet inexpensive to manufacture and easy in feeding into the channel to be reconstructed.
- a single-layer layer of threads made of a plastic polymer can be inserted, in particular threads made of polypropylene.
- the further layer can be formed, for example, from a polyester needlepunch.
- the cost of the further layer is less than the cost of a first layer, thereby reducing the cost of material insertion for the insert tube.
- the thickness of the further layer is greater than the thickness of the first layer.
- the total wall thickness of the insertion tube in the hardened state is for example between 2 and 25 mm or between 3 and 30 mm. For many applications, a wall thickness range between 5 and 25 mm is sufficient.
- the wall thickness may be formed for example by an inner first layer and an outer first layer with a wall thickness of 1 mm and an intermediate layer further with a wall thickness of 3 mm. These different wall thicknesses in the cured state can also be found in the uncured state of the insert tube by correspondingly different thicknesses of the first and further layers.
- the thickness of the further layer is at least 1.5 times, preferably at least twice, the thickness of the first layer. In another embodiment, the thickness of the further layer is more than 50% of the total wall thickness of the insert tube. Depending on the application, the thickness of the further layer, in the case of several further layers the sum of the thicknesses of the further layers, can be more than 80% or even more than 90% of the total wall thickness of the insertion tube.
- Fig. 1 shows a longitudinal section through an insert tube according to the invention for lining a pipeline.
- Fig. 1 shows a longitudinal section through an insert tube 1 according to the invention for lining a pipe 2, which forms an underground sewer 4.
- the insertion tube 1 a total of three layers.
- a first, in relation to a longitudinal axis 6 of the insert tube 1 inner first layer 8 is formed of a glass fiber braid, wherein a proportion of more than 50 wt.% Of the glass fibers either parallel to the longitudinal axis 6 or circumferentially thereto.
- the insertion tube 1 according to the invention has a high tensile stability in the longitudinal direction and / or in the circumferential direction.
- the first inner layer 8 can also be formed entirely by glass fibers which are aligned either in the longitudinal direction or in the circumferential direction.
- the inner first layer 8 is adjoined by another layer 10, which is formed from a non-woven or felt made of polyester threads or polypropylene threads.
- the further layer 10 may in particular be formed entirely from polyester threads or polypropylene threads which form a corresponding fleece or felt.
- a nonwoven or felt it is also possible to use an otherwise braided, woven, knitted, knitted or the like which can be impregnated with the curable reaction mass.
- the outer first layer 12 connects to it, which in turn is formed by a mesh, woven fabric, knitted fabric or the like, which is impregnated with the hardenable reaction mass.
- the inner first layer 8 is adjoined by an inner liquid-tight plastic tube 14, which is removed after curing.
- the outer first layer 12 is covered by an outer liquid-tight plastic tube 16.
- the not yet cured reaction mass is filled and thereby the layers 8, 10, 12 impregnated.
- the insertion tube 1 is drawn into the pipe to be reconstructed, and comes with its outer plastic tube 16 in abutment against the inside of the pipe. 2
- the insert tube 1 After hardening of the insert tube 1, which takes place, for example, by irradiation with ultraviolet rays having a wavelength of about 400 nm, the insert tube 1 forms a chemically and / or mechanically high-strength inner pipeline and in particular closes fractures or holes 18 in the pipeline 2 to be reconstructed.
- the outer plastic tube 16 comes into close contact with the pipe 2, so that the reduction of the clear width 20 of the remaining sewer 4 is usually at least 50%, preferably at least 80% of the corresponding clear width of the original pipe 2.
- the clear width 20 of the remaining sewer 4 is shown relatively low only for reasons of better representability.
- the thickness 22 of the further layer 10 is shown in the
- Embodiment about 3 mm.
- the thickness 26 of the first layers 8, 12 is in each case about 1 mm, so that a total thickness or wall thickness 24 of the insertion tube 1 of about 5 mm results.
- FIG. 1 by way of example only, a layer sequence A (first layer) -B (further layer) -A (first layer) is shown.
- structures such as, for example, A-B-B-A, A-B-A-BA, etc., wherein the thicknesses (26) of the first layers may also be different.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510056266 DE102005056266A1 (de) | 2005-11-14 | 2005-11-14 | Einlegeschlauch zum Auskleiden von Rohrleitungen und Kanälen, insbesondere von Abwasserkanälen |
DE200520018452 DE202005018452U1 (de) | 2005-11-14 | 2005-11-14 | Einlegeschlauch zum Auskleiden von Rohrleitungen und Kanälen, insbesondere von Abwasserkanälen |
PCT/EP2006/010853 WO2007054350A1 (de) | 2005-11-14 | 2006-11-13 | Einlegeschlauch zum auskleiden von rohrleitungen und kanälen insbesondere von abwasserkanälen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1948990A1 true EP1948990A1 (de) | 2008-07-30 |
Family
ID=37796560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06818494A Withdrawn EP1948990A1 (de) | 2005-11-14 | 2006-11-13 | Einlegeschlauch zum auskleiden von rohrleitungen und kanälen insbesondere von abwasserkanälen |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090139593A1 (de) |
EP (1) | EP1948990A1 (de) |
CA (1) | CA2629209A1 (de) |
WO (1) | WO2007054350A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010016048U1 (de) | 2010-06-15 | 2011-03-10 | Huhtamaki Forchheim Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg | UV-Strahlung durchlässige Mehrschichtfolie |
ITTO20100773A1 (it) * | 2010-09-22 | 2012-03-23 | Dytech Dynamic Fluid Tech Spa | Tubazione per un circuito scr di un veicolo |
DE102011102135B3 (de) | 2011-05-20 | 2012-08-30 | Impreg Gmbh | Einlegeschlauch zum Auskleiden und Sanieren von Rohrleitungen und Kanälen, insbesondere von Abwasserkanälen |
US20140166147A1 (en) | 2012-12-10 | 2014-06-19 | Buergofol GmbH | Multilayer Film |
EP2777925B1 (de) | 2013-03-11 | 2021-04-28 | Buergofol GmbH | Einlegeschlauch für die grabenlose Kanalsanierung |
EP2827040A1 (de) | 2013-07-19 | 2015-01-21 | Per Aarsleff A/S | Verstärkte Auskleidung zum Sanieren von unterirdischen Rohrsystemen, Verfahren zur Herstellung einer verstärkten Auskleidung und Verfahren zur Installation einer verstärkten Auskleidung in einer Rohrleitung |
DE102014105085B4 (de) | 2014-04-09 | 2022-01-27 | Buergofol GmbH | Polymere Mehrschichtfolie sowie deren Verwendung, Schlauchlining-Aufbau mit der polymeren Mehrschichtfolie und sanierter Kanalabschnitt mit dem Schlauchlining-Aufbau |
DE102014209079B3 (de) * | 2014-05-14 | 2015-07-02 | Bkp Berolina Polyester Gmbh & Co. Kg | Schlauchliner mit unsichtbarer Markierung |
DE102020124534A1 (de) | 2020-09-21 | 2022-03-24 | Buergofol GmbH | Schlauchinnenfolie für einen Einlegeschlauch für die grabenlose Kanalsanierung mittels Schlauchlining-Verfahren |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4836715A (en) * | 1987-02-11 | 1989-06-06 | Insituform International N.V. | Passageway lining material |
US4976290A (en) * | 1989-06-12 | 1990-12-11 | Ozite Corporation | Tubular member having a liner |
US5411060A (en) * | 1992-04-03 | 1995-05-02 | Chandler; Brian | Composite pipe |
US5836357A (en) * | 1995-10-26 | 1998-11-17 | Bay Mills Ltd. | Pressure-expandable conduit liner |
DE19718655C2 (de) * | 1997-05-02 | 1999-06-10 | Braun Karl Otto Kg | Schlauchförmiges Auskleidungsmaterial, daraus hergestellte Rohrauskleidung und Verfahren zur Herstellung derselben |
US6196271B1 (en) | 1999-02-23 | 2001-03-06 | Michael Braun | Liner hose for reconstruction of conduits and pipelines and a method for manufacture thereof |
US6360780B1 (en) * | 2000-08-30 | 2002-03-26 | Owens Corning Fiberglas Technology, Inc. | Liner for reinforcing a pipe and method of making the same |
US6615875B2 (en) * | 2000-08-30 | 2003-09-09 | Owens Corning Composites Sprl. | Liner for reinforcing a pipe and method of making the same |
US6708729B1 (en) * | 2002-03-14 | 2004-03-23 | Instituform B.V. | Fiber reinforced composite liner for lining an existing conduit and method of manufacture |
US7478650B2 (en) * | 2002-06-19 | 2009-01-20 | Saint-Gobain Technical Fabrics Canada, Ltd. | Inversion liner and liner components for conduits |
US6837273B2 (en) * | 2002-06-19 | 2005-01-04 | Saint-Gobain Technical Fabrics Canada, Ltd. | Inversion liner and liner components for conduits |
US7096890B2 (en) * | 2002-06-19 | 2006-08-29 | Saint-Gobain Technical Fabrics Canada, Ltd. | Inversion liner and liner components for conduits |
US7018691B2 (en) * | 2003-06-06 | 2006-03-28 | Poly-Triplex Technologies | Reinforcing liner, system and method of reinforcing a structure, and reinforced structure thereby |
-
2006
- 2006-11-13 CA CA002629209A patent/CA2629209A1/en not_active Abandoned
- 2006-11-13 US US12/083,933 patent/US20090139593A1/en not_active Abandoned
- 2006-11-13 EP EP06818494A patent/EP1948990A1/de not_active Withdrawn
- 2006-11-13 WO PCT/EP2006/010853 patent/WO2007054350A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007054350A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2007054350A1 (de) | 2007-05-18 |
US20090139593A1 (en) | 2009-06-04 |
CA2629209A1 (en) | 2007-05-18 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20080515 |
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AK | Designated contracting states |
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AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
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17Q | First examination report despatched |
Effective date: 20080926 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: IMPREG HOLDING APS |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: IMPREG HOLDING APS |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20100928 |