EP0704035A1

EP0704035A1 - Process and device for lining pipes, in particular for sanitary purposes

Info

Publication number: EP0704035A1
Application number: EP94918787A
Authority: EP
Inventors: Erich Thaler
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-10
Filing date: 1994-05-26
Publication date: 1996-04-03
Also published as: CA2163673A1; WO1994029632A1; DE4319285A1; AU6996694A; DE4319285C2

Abstract

A process is disclosed for lining a pipe (2), in particular for sanitation purposes. In a first step, a foil or woven material (13a-13c; 113a-113d) is introduced into the pipe (2). An inner lining which covers the area to be lined of the pipe (2) may be created on site from said foil or woven material in the pipe (2) itself. In a second step, the foil or woven material (13a-13c; 113a-113d) is applied in the radial and/or axial direction on the area to be lined of the inner wall of the pipe (2), and in a third step the foil or woven material (13a-13c; 113a-113d) applied on the inner wall of the pipe (2) to be lined and impregnated with a hardenable medium is hardened.

Description

Title: Method and device for lining, in particular for the purpose of rehabilitation, pipelines

description

The invention relates to a method and a device for lining, in particular for the purpose of renovation, of pipelines, wherein a film or fabric material and a hardenable medium are used.

The remediation of leaky pipelines is becoming increasingly important, since leaks in such pipelines are extremely problematic from an ecological point of view. The wastewater, chemical agents, gases or other media emerging from these line systems end up in the environment and lead there to undesirable phenomena, such as, for example, contamination of the soil surrounding the pipeline laid. Due to the tightened environmental protection laws - which for the most part state liability for the culprit, i.e. the operator of such piping systems - there is now an increasing demand that leaks or leaks in piping systems must be eliminated immediately. This would - in itself conceivable - renovation of the pipelines by exposing the defective Line parts and their replacement with new pipe parts cause extremely high costs. For these reasons, various rehabilitation processes have since been developed and practiced, the basic principle of which is to line the inside of the defective pipeline with a prefabricated replacement hose and thus to remedy the leakage in the piping system. The following rehabilitation processes are known:

From DE-OS 41 03 847 a method of a device for lining elongated openings through a winding tape is known, tubes with different diameters and cross sections being produced by the winding device. The winding tape is fed to the winding device and wound spirally to form a lining. The winding tape, which is shaped as a spiral, is brought forward in such a way that the profiled tape is transported forward by the rotation of a double tube provided with a screw thread in connection with a drive roller and a counter roller and is fed to a joint, in which it is assembled via a pressure roller and pressed against a shield tail seal becomes. After the wound tube has emerged from the shield tail, it is expanded to the final shape by calibration rollers, which are mounted on movable supports, and the inner lining produced in this way is brought into contact with the inner wall of the opening to be lined. This resulting in an indirect positioning of the winding tape on the inner wall of the pipeline to be lined has the disadvantage that a complicated device is required to carry it out, which drastically affects the economy of the known method. In addition, the known method does not provide sufficient flexibility with regard to the shape of the inner lining. EP 0 228 998 describes a method and a device for the renovation or manufacture of installed pipelines, a three-layer hose being used for the subsequent inner lining of the defective pipe, which consists of an inner and an outer layer, at least one of which is radiolucent and at least one is gas-tight, and consists of an intermediate layer impregnated with UV-radiation-resistant resin. The three-layer hose, which has already been formed, is introduced into the pipeline to be rehabilitated through a mountable first shaft, and the radiation-curable resin is cured in the inflated state of the hose with the aid of UV radiation. This blowing up and hardening of the hose, which is already prefabricated outside the pipe to be renovated, is carried out by pulling a device with a pulling rope attached in the longitudinal axis of the pipe through the hose inserted into the pipe, which has a conical run-up and widening surface on its end face. The hose lying on the traction cable is spread out from the inside in a circle from this run-up and expansion surfaces to the pipe wall and pressed to the pipe with compressed air or with crowned rollers and at the same time caused to harden by UV radiation emitted by a radiation source of the device.

The known method has the disadvantage that the three-layer hose which is manufactured outside the pipeline and which is to be inserted into the pipeline to be rehabilitated in the prefabricated state is only extremely cumbersome and therefore difficult to handle: When rehabilitating a pipeline section, it is necessary that a walk-in at both ends thereof and therefore a relatively large shaft must be available so that the three-layer hose can be inserted into the pipeline to be rehabilitated, and so that two deflection rollers can be installed so that the three-layer hose from one shaft can be deflected accordingly to the opposite shaft by the pulling rope moving the pipeline to be renovated. In the above-mentioned publication, it is also proposed that the three-layer hose to be laid in the pipeline to be rehabilitated is drawn in by an earth displacement rocket running inside the pipeline. This variant of the method also has the disadvantage that the pipeline to be rehabilitated must be accessible at both ends, that this earth displacement rocket must be removed from the pipeline system after the three-layer hose has been pulled through the pipeline to be rehabilitated. Furthermore, this variant has the disadvantage that it is only relatively short

Pipe sections can be refurbished, since the weight of the hose to be towed by such a pulling device causes a frictional force which counteracts the feed direction and which relatively quickly exceeds the maximum towed load of such a pulling device.

Another disadvantage of the known method is that the three-layer hose used here can be produced only with great effort. For this purpose, a device is required which has a storage drum for an intermediate layer of the hose to be produced around an inner layer, a trough-shaped impregnation section with an impregnating resin, a further device for covering the intermediate layer laid and impregnated with an outer layer and an additional supply roller for a protective jacket of the three-layer hose. To produce the three-layer hose, the outer layer, which is pushed together in the manner of a bellows, is then loosely pushed onto a hollow carrier in sufficient quantity. Thereafter, the intermediate layer laid around the inner layer, flattened and rolled up on the supply roller, is drawn into the carrier by means of pressure rollers and held. Then the pressure rollers are back in the resin of the impregnation line is tilted, the intermediate layer - pressed by the pressure rollers - dipping into the resin up to the drive rollers of the impregnation line. Finally, the intermediate layer brought into contact with the outer layer is pulled through the hollow support while the drive for the drive rollers is switched on at the same time. The plastic film forming the outer layer of the three-layer tube is peeled off the carrier and continuously envelops the intermediate layer. Such a complex three-layer hose - which also has a relatively high bending stiffness and is therefore not very flexible - consequently leads to extremely high renovation costs in a disadvantageous manner, so that the known method cannot economically renovate defective pipelines.

From CH 675 760, a method for the internal renewal of lines is known, in which a multi-layer hose impregnated with photopolymer resin is used for the uninterrupted and uniform internal renewal of existing lines, especially of water lines. In this known method, too, a pulling rope running from a first shaft through the pipeline to be renovated to a second shaft and guided in the shafts via guide pulleys is used to pull the hose in, so that this method also has a disadvantageous effect on the already Disadvantages mentioned above occur when inserting the renewal hose into the defective pipeline.

After insertion, the multi-layer hose is sealed airtight at both ends and inflated by blowing in a gaseous and possibly oxygen-free medium and then kept at a constant pressure at which the hose is pressed against the inner wall of the pipeline, but without the expansion limits of the hose to reach. The resin is then UV Radiation source that was placed in the tube before airtight sealing, cured in situ. There is no need for any further explanation in and of itself that this known method is complicated to carry out in practice and is therefore costly.

Furthermore, this known method again has the disadvantage that the prefabricated replacement hose is not only difficult to handle. Rather, it is also extremely expensive to manufacture, since for the purpose of building the renewal hose, a first liquid- and gas-tight inner hose with a hose-like, but UV-permeable outer layer made of felt, fleece or fabric-shaped material in the form of a roll or in layers a container with an upper outlet line is given. A negative pressure which is less than 0.5 bar is then generated in the container mentioned. At this negative pressure, the hose is slid through a resin trough and soaked and squeezed therein, whereupon the squeezed hose is guided on a web over a glass fiber-reinforced, liquid and gas-tight and UV-impermeable outer hose system. This armored hose outer system is placed around the soaked hose and welded together to form the outer hose layer.

From DE-OS 3922351 a method for the rehabilitation of drain pipes using a resinized inner pipe is known, in which an inner pipe impregnated with a hardenable resin is inserted into the relevant channel section in the axial direction and brought into juxtaposition with the defective channel section. To manufacture the inner tube, a winding tube is produced outside the duct to be renovated by shaping a resinous plate, the length of which is longer than the axial extent of the duct section to be renovated, into a tube such that the edge regions running in the longitudinal direction of the plate cover a large area overlap. The so formed Inner tube with an initially reduced diameter is placed on a bladder which can be expanded in the radial direction of the duct and is introduced into the duct together with this bladder. By means of two carriages attacking the bladder, the inner pipe is brought in juxtaposition to the rehabilitation section of the sewer and the bladder is then inflated by the supply of compressed air, causing the wrapping pipe lying above the bladder to expand radially and the overlap areas to shift in the circumferential direction. This

Displacement takes place until the winding tube is in a form-fitting manner on the inner circumference of the sewer section to be renovated. The resin-impregnated inner tube is then cured using UV lamps in the bladder.

From DD 255 579 a method and a device for the lining and wrapping of pipelines and the lining of channels is known, in which by a helical winding of a strip in a ring of rolls to a tube, in which edges of the strip overlap and intermesh so that a longitudinal slip is possible by which the tube can be kept at the desired diameter during application to the pipeline wall, with a winding force being applied to bring about the interlocking edges so that the diameter of the tube can be changed so that it touches the wall of the pipeline.

From EP 236 274 a device for repairing pipes is known, in which a carriage is provided which is guided coaxially to the axis of the pipe to be repaired by two sets of spring-loaded rollers. The carriage has at its front end a connection for a supply hose for the liquid coating material to be applied to the inner wall of the tube and at a rear end a distribution element for the coating material. The connection is via a connecting line with an outlet opening connected to the bottom of the car. To repair a sewer pipe - after it has first been cleaned and then dried with warm air - the known device is introduced into the pipe through a shaft. From a second shaft located at the opposite end of the pipe to be renovated, a pull cable is drawn through the pipe and coupled to the known device. In addition, a hose for the coating material is drawn in and connected to the above connection of the device. Then the car is slowly pulled through the pipe by the hose, while coating material is simultaneously fed through the hose and applied through openings to the underside of the pipe to be renovated. Due to the distribution element driven by a motor, the coating material is evenly distributed from the lower side of the tube over its inner wall. A subsequent smoothing cone of the known device compensates for the unevenness that is still present.

From DE-OS 41 19 161 a method and a device for lining the inner wall of a sewer pipe is known, in which an extruder which can be driven by means of trolleys is provided. The extruder is equipped with a radial pipe nozzle through which a warm plastic hose is extruded onto the inner wall of a sewer pipe to be renovated. The warm plastic hose is pressed against the inner wall of the pipe by means of compressed air and cooled to a lining pipe.

To avoid the disadvantages of the methods mentioned at the outset, it is therefore an object of the invention to provide a method and a device for the rehabilitation of pipelines which ensure a particularly simple and therefore economical operation. This object is achieved according to the invention by a method for lining, in particular for renovating, a pipeline, a film or fabric material and a hardenable medium being used, by the following method steps,

that at least one film or fabric strip n is introduced into the pipeline,

that at least one web of this film or fabric strip is positioned in the radial and / or axial direction on the inner wall of the pipeline to form an inner lining,

- And that this inner lining formed in the pipeline is cured, solved.

To carry out the method, a device for lining, in particular renovation, a pipeline, a magazine device for receiving and storing a plurality of webs of at least one film or fabric strip, a production device functionally connected to the magazine device for on-site formation of an inner lining is preferably used renovating pipeline by directly positioning at least one web of the at least one film or fabric strip on the inner wall of the pipeline, a transport device for moving at least the production device in the longitudinal direction of the pipeline to be renovated, and a curing device for curing a curable that impregnates the film or fabric strip Has medium used.

The method and the device according to the invention make it possible in a particularly simple manner to make an inner lining for a pipeline to be renovated from film or fabric strips, that is to say from a tape-like film or fabric material to manufacture directly on site. It is therefore advantageously no longer necessary to prefabricate the inner lining for the pipeline to be lined, in particular to be renovated, in a complex manner before it is installed. Rather, the method according to the invention and the device according to the invention preferably used for this purpose advantageously allow mobile production of a tube functioning as an inner lining within a pipeline by directly contacting the webs of the film or fabric strips with the - possibly coated with a hardenable medium - inner wall of the pipeline to be renovated. This procedure not only ensures that the manufacturing costs for such an inner lining and thus the renovation costs are drastically reduced compared to the known method. Rather, the method according to the invention advantageously allows only certain points of the pipeline to be treated selectively, so that it is no longer necessary to rehabilitate an entire section of the pipeline. The savings in film or fabric material achieved through this selective application of the method according to the invention also further reduce the renovation costs significantly.

Advantageous developments of the invention result from the subclaims.

Further details of the invention can be found in the two exemplary embodiments, which are described below with reference to the figures. Show it:

Fig. La u. Ib a first embodiment;

Figure 2 shows a cross section through the first

Embodiment along the line II-II of Fig. 1; Figure 3 shows a second embodiment;

Figure 4 is a plan view of the second

Embodiment from the direction IV of Fig. 3;

Figure 5 shows a cross section through the second

Embodiment along the line V-V of FIG. 3rd

In the following description of the first exemplary embodiment shown in FIGS. 1 a, 1 b and 2 of a device for the lining of pipelines, generally designated 1, the mechanical-structural design of this device 1 is first described, its operation being dealt with here only to the extent that than is necessary to understand the special design details. Subsequently, the method for lining the pipelines - which is particularly suitable for their renovation - is described on the basis of the functioning of the device 1.

FIGS. 1 a and 1 b show a vertical section through the device 1 used in a pipe 2, which is only shown schematically. FIG. 1 a shows the part 1 a of device 1 that is actually used to produce the inner lining, whereas FIG. 1 b essentially shows a tank device 70 of device 1 that serves to hold a hardenable medium, in particular spray medium, which has two coupling members 72 a, 72 b Quick coupling 72 in the pipe 2 can be connected to the part la.

This device 1 is essentially divided into a magazine device 10 for receiving foil or fabric material, one for lining the pipeline 2 Production device 20 for forming an inner lining which seals the defective location of the pipeline 2 to be renovated, a transport device 30 moving the device 1 along the pipe 2, a monitoring device 40 having video cameras 41 and 42, a drive and ventilation device 50, a curing device 60 and the tank device 70. As already mentioned, the tank device 70, which has a resin tank 71, is connected in an advantageous manner to the part la of the device 1 which precedes the production direction via the quick coupling 72 which is known per se and is therefore not shown in detail, so that the device 1 in particular can easily be introduced into the pipeline 2 through a narrow shaft: the chord coupling 72, 72a, 72b makes it possible to separate the part la of the device 1 consisting of the aforementioned devices 10-60 and the tank device 70 separately into the pipeline Introduce g 2 and then couple using the quick coupling 72. As a result, a particularly short effective overall length of the device 1 described is achieved.

The magazine device 10 used to hold the tissue or film material has - in the exemplary embodiment shown here - a coil unit 10 'holding three tissue or film rolls 11a-11c. The right-hand coil wall 10a ′ in FIG. 1 of the coil unit 10 ′ is connected in a rotationally fixed manner to a radially extending flange 51 ′ of an axis of rotation 51 of the drive device 50 of the device 1. The rollers 11a-11c of the coil unit 10 'designed as a coil magazine are driven by a drive unit 12 accommodated in the interior of the coil magazine 10'. The individual film or fabric rolls 13a-13c of the magazine device 10 are connected in such a way that first the film or fabric strip 13a accommodated in the roll 11a (that is, in the roll initially lying in the production device 20) is unwound is that the end of this film or fabric strip 13a is connected to the beginning of the film or fabric strip 13b received on the roll 11b, etc. By this "series connection" of the film or fabric strips 13a-13c of the rolls 11a-11c of the magazine device 10, it is possible in an advantageous manner to accommodate a sufficiently large amount of film or fabric material - preferably glass fiber fabric (also suitable for drinking water pipes), Perlon, plastic films of all types or linen or natural fabric - so that a compact design of the Device 1 is guaranteed.

In order to ensure a rapid replacement of used rollers 11a-11c of the magazine device 10, it is provided that the left coil wall 10b 'of the coil magazine 10' in FIG front transport unit 30a of the transport device 30 is formed, which is secured by means of a quick coupling 34 on a further tube 33 projecting into the inside of the coil magazine 10 '. The further tube 33 of the transport device 30 receiving the video camera 41 is mounted in the cylindrical part 10c 'of the coil magazine 10' by means of bearing points 34a-34d.

The described configuration of the magazine device 10 is not the only possible one: rather, a number of different embodiments are conceivable. As examples of this, it should only be mentioned that a unitary roll unit formed from the rolls 11a-11c - which already contains the film or fabric strips 13a-13c in the above-mentioned connected form - on the cylindrical part 10'c of the coil magazine 10 'in one Operation can be pushed on, or that the coil magazine 10 'then detachably connected to the flange 51' of the rotary tube 51 can be exchanged as a whole. It is also possible to arrange the three series-connected rollers lla-llc on their own mandrel, the individual mandrels (not shown) being arranged coaxially and each being designed such that they can slide on one another so that after the first has been unwound Roller 11a, the mandrel of the second roller 11b slips forward over the mandrel of the first roller 11a due to the tensile force acting on the fabric strip 10b received thereon. In a corresponding manner, the mandrel of the third roll 11c slides over the mandrel after the fabric strip 10b of the second roll 11b has been completely unwound.

At this point it should also be mentioned that in the following the term "fabric strip" is used for the term "film or fabric strips" in the sense of a more concise notation.

On the flange 51 'of the rotary tube 51, on the side opposite the magazine device 10, the production device 20 is arranged, which - as can best be seen in FIG. 2 - essentially comprises a pressure roller 21 and a drive roller 22 for feeding the fabric strips 13a -13d formed fabric strip 13, a pre-injection unit 23, a post-injection unit 24 and a cutting unit 25 contains. The production device 20 serves - as will be explained in more detail below - for producing the inner lining of the pipeline 2 to be renovated. The drive roller 22 of the production device 20 is driven by a toothed belt 26 which interacts with the rotary tube 51 (see FIG. 1).

The production device 20 is followed by a rear transport unit 30b of the transport device 30, which essentially contains a rear sprocket unit 36 for the device 1 and a bearing housing 35 for the axis of rotation 51 of the drive device 50 which has four bearing points 35a-35d. The rear transport unit 30b has two link chains 37 driven by the drive motor 52 of the drive device 50 via a drive wheel 36a and running via a further wheel 36b, which - like the support rollers 32 of the front transport unit 30a of the transport device 30 - are arranged slightly obliquely to the vertical by one To achieve self-centering of the device 1 in the pipeline 2. It should be mentioned that, for the sake of simplicity in FIG. 1, the rear transport unit 30b has been rotated into the plane of the drawing.

The drive and ventilation device 50 adjoining the transport device 30 has the drive motor 52, which is shown only schematically in FIG. 1, for driving the transport device 30 and the axis of rotation 51 and a fan unit 54, likewise only shown schematically in FIG. 1, through the air or gas can be conducted into a ventilation shaft 55 leading in the direction of the production device 20. The drive motor 52 and the fan unit 54 are components known per se, so that a detailed description of these components of the device 1 can be dispensed with at this point.

The device 1 furthermore has a curing device 60 for the UV contained in the resin tank 71 of the tank device 70 and led via a corresponding line 27, which is only shown schematically in FIGS. 1 a, 1 b and 2, to the injection and post-injection nozzle units 23 and 24 of the production device 20 - radiation-curable resin. In the exemplary embodiment shown in FIG. 1, the curing device 60 consists of four UV lamps distributed along the circumference of the pipeline 2, of which only one UV lamp 61 is shown in FIG. 1. The remaining three UV lamps of the curing device 60 are preferably each offset by 90 degrees in the circumferential direction of the pipeline 2, so that it is ensured that the entire circumferential region of the UV lamps 61 renovating pipeline 2 is radiation-curable.

The tank device 70 already mentioned at the beginning has, in addition to the resin tank 71, a high-pressure pump 73 through which the resin contained in the resin tank 71, that is to say the UV radiation-curable spray medium, via line 27 from the resin tank 71 to the pre-spray and / or post-spray nozzle unit 23. 24 the, production facility 20 is transportable. The rear video camera 42 of the monitoring device 40 is arranged on the rear side 70 ′ of the tank device 70.

In addition, the tank device 70 also contains a driven cable reel (not shown in FIG. 1), by means of which the device 1 can be connected via a cable 81 to a control panel 80 located outside the pipe 2 to be renovated and to a corresponding voltage source 82.

The method for lining, in particular for the purpose of refurbishment, the pipeline 2 and thus the functioning of the device 1 is now as follows: To load the magazine device 10 with the rolls lla-llc receiving the fabric strips 13a-13c, the quick coupling 34 is released, so that the Fastening tube 31 together with the front transport unit 30a can be removed from the further tube 33 of the transport device 30. After removal of the fastening tube 31 together with the flange 31 'forming the left side wall 10b' of the coil magazine 10 ', the rollers 11a-11c can easily be inserted into the coil magazine 10' and connected to the "series connection" already described above. The beginning of the fabric strip 13a located on the roller 11a is between the pressure roller 21 and the drive roller 22

Passed production facility 20. The coil magazine 10 'is replaced by placing the fastening tube 31 of the transport device 30 on the further tube 33 projecting into the interior of the cylindrical part 10c' of the coil magazine 10 'and locking the quick coupling 34 closed. Will be one of those described above

Embodiments of the magazine device 10 used, the loading process takes place accordingly.

Thereafter, the resin tank 71 of the tank device 70 is filled with a corresponding amount of UV radiation-curable resin. After these preparations, the device 1 is introduced into the pipeline 2 to be renovated, whereby - as already mentioned above - it can be provided that the part la and the tank device 70 are successively introduced into the pipeline 2 and then by means of the quick coupling 72 in the pipeline 2 can be connected.

The device 1 is now moved to the point of the pipeline 2 to be renovated. To locate this leak in the pipeline 2, the operator sitting at the control panel 80 checks the video image, which is generated by the first video camera 41, preferably equipped with a wide-angle lens, of the monitoring device 40 and is shown on a monitor of the control panel 80 and shows the inner surface of the pipeline 2, and controls the transport device 30 such that the production device 20 is positioned in the direction of travel of the device 1 at a corresponding distance in front of this leak. This distance is generally dimensioned such that the inner lining produced by the production device 20 for the pipeline 2 to be renovated overlaps with the intact part thereof, so that a reliable sealing of the leakage of the pipeline 2 is ensured.

After the production device 20 has been positioned in this way, the production of the inner lining is started. For this purpose, the drive motor 52 of the drive device 50, which drives the axis of rotation 51, is generated via control signals generated by the control panel 80 and transmitted via the cable line 81 to the device 1 activated so that the spool magazine 10 'of the magazine device 10, which is non-rotatably connected via the radial flange 51' of the axis of rotation 50, and the production device 20 are set in a circular movement about the axis of rotation 51. The common drive of the magazine device 10 and the production device 20 via the flange 51 'of the axis of rotation 51 has the advantage that the relative position ■ of the coil magazine 10' and the production device 20 remains constant, so that the unwinding process of the serially arranged fabric strips 13a-13c of the associated rollers 11a-11c and the transport of the fabric strips 13 formed from the fabric strips 13a-13c from the rollers 11a-11c to the pressure roller 21 and the pressure roller 22 of the production device 20 can be carried out particularly easily. Thereafter, the UV radiation-curable resin is pumped from the high-pressure pump 73 of the tank device 70 to the injection nozzle unit 23 of the production device 20 and is sprayed via this unit with the production device 20 rotating around the axis of rotation 51 along the circumference of the pipeline 2. This optional work step advantageously achieves a better connection of the pipeline 2 to be renovated with the inner lining to be produced by the production device 20 and thus a better sealing of the pipeline 2.

The pressure roller 22 of the production device 20 advances the fabric strip 13 guided between it and the pressure roller 21, which is then pressed against the inner surface of the pipeline 2 by the stream of the UV radiation-curable spray medium - ie the resin - flowing out of the post-injection nozzle unit 24. At this point it should also be mentioned that instead of this procedure it can also be provided that the production device 20 has a radially directed compressed air nozzle (not shown in FIGS. 1 a, 1 b and 2), through which the fabric strip 13 against the inner surface the pipe 2 is pressed, the fabric strip 13 being advantageously soaked simultaneously with the resin.

The described contactless application of the tissue to the tube wall by the spray medium stream or by compressed air or compressed gas has the advantage on the one hand that the tissue strip 13 can be reliably positioned on the tube inner wall by simple means. On the other hand, this procedure has the advantage that the contactless application of the tissue allows great freedom in the choice of the hardenable spray medium, since a mechanical contact between the

Tissue strips 13 impregnated with UV radiation-curable spray medium are omitted.

By slowly moving the device 1 through the transport device 30, a spiral application of the fabric strips 13 to the inner wall of the pipeline 2 is achieved, the transport movement being regulated such that a sufficient overlap of successive webs of the inner lining is ensured. However, it is also possible to carry out the inner lining in the form of overlapping rollers by applying a corresponding number of layers of the fabric strip 13 to the inner tube wall when the transport device 30 is stationary and then cutting the fabric strip 13 by the cutting unit 25 of the production device 20. The production device 20 is then moved on and a further roll of the inner lining, preferably overlapping with the first inner lining roll, is produced.

After the application of the corresponding fabric strips 13 to the inner wall of the pipeline 2 to be renovated and the subsequent impregnation of the spiral or roll-applied fabric strips 13 by a renewed or repeated spraying of the UV-radiation-curable resin, the inner lining of the pipeline 2 created in this way is held on the inner wall of the pipeline 2 by the compressed air generated by the fan 54 and flowing out of the ventilation shaft 55, while the curing of the resin is carried out in a manner known per se the UV lamp 61 of the curing device 60 takes place.

The second video camera 42 of the monitoring device 40, which is attached to the rear of the device 1 and is preferably equipped with a wide-angle lens, then advantageously enables simple quality control of the inner lining produced.

After the pipe section to be rehabilitated has been treated in the manner described above, the device 1 is moved back to its starting point by the transport device 30 and can then simply be removed from the pipe 2.

The person skilled in the art can clearly see from the above explanations that the basic variant of the method described can be modified in a variety of ways. For example, it is conceivable to introduce film or fabric strips 13a-13c that have already been impregnated with the curable medium into the pipeline 2. The tank device 70 can then - if on the above. The step of spraying the inner wall of the pipeline 2 before applying the foil or fabric strips 13a-13d is dispensed with - omitted without replacement. The modifications to be made to the device 1, such as the relocation of the second video camera 42 and the cable reel into the part la of the device 1 - then occur automatically for the person skilled in the art.

It is also possible to dispense with the tank device 70, the curable medium in a

Magazine device 110 of the second exemplary embodiment has four rollers llla-llld which receive the fabric strips 113a-113d. As can best be seen from FIG. 5, the fabric strip 113a picked up in purple on the first roll serves to line the sector of the inner wall of the pipeline designated LI. The fabric strips 113b or 113c or 113d serve in a corresponding manner Lining of the parts L2-L4 of the pipeline 2 located in the upper right or left upper or left lower quadrant of FIG. 5. It is also possible, however, instead of the four fabric strips 113a covering the entire circumference of the pipeline 2 to be renovated. 113d to use only two strips of fabric of double width or any other division. Furthermore, it is also possible to cover only a part of the circumference of the pipeline 2 with at least one fabric strip.

In order to ensure easy feeding of the fabric strips 113a-113d, the rollers 11a-11dd of the magazine device 110 are each offset by 45 to the vertical. Each roller llla-llld has its own drive unit 112a-112d, the working speed of which is correlated with the feed speed of the transport device 30 of the device 100.

The second exemplary embodiment also differs from the device 1 in that no rotating axis of rotation 51 is provided. Rather, each of the four fabric strips 113a-113d is assigned its own production facility 20.

In summary, it can be stated that the described method and the associated device are not only suitable for the rehabilitation of circular pipelines. Rather, it can be achieved by simple modifications in the skill of any person skilled in the art that pipelines of almost can be achieved with the device described any cross section can be treated. Furthermore, the use of a UV radiation-curable medium, in particular a spray medium (resin), is not mandatory. For example, it is also possible to use infrared-curable spray medium. In addition, a number of variations of the method and the device 1, 100 can be carried out without departing from the basic idea of the method and the device described. It is only important here that the modified method and the device correlated to this enables the production of an inner lining on site, it being provided that the film and fabric material "in-line" directly at the line of the pipe 2 to be lined or to be renovated this covering or sealing inner lining is processed.

Claims

1. A method for lining, in particular for renovation, a pipeline (2), a film or fabric material and a hardenable medium being used, characterized by the following process steps,

- That at least one film or fabric strip (13a-13c; 113a-113d) in the pipeline

(2) is introduced,

that at least one web of the film or fabric strip (13a-13c; 113a-113d) is positioned in the radial and / or axial direction on the inner wall of the pipeline (2) in order to form an inner lining covering the region of the pipeline (2) to be lined,

- And that the inner lining formed in the pipe (2) is cured.

2. The method according to claim 1, characterized in that on the inner wall of the pipeline

(2) applied film or fabric strips (13a-13c; 113a-113d) in the pipeline (2) is impregnated with a hardenable medium.

3. The method according to claim 1, characterized in that the at least one film or fabric strip (13a-13c; 113a-113d) introduced into the pipeline (2) is pre-impregnated with the hardenable medium.

4. The method according to any one of claims 1 to 3, characterized in that the for

Production of the inner lining for the pipeline (2) to be lined with film or fabric strips (13a-13c; 113a-113d), preferably as Roll trained receiving units (lla-llc; llla-llld) is introduced.

5. The method according to claim 4, characterized in that at least two on different recording units

(lla-llc) foil or fabric strips (13a-13c) are connected to form a coherent foil or fabric strip (13).

6. The method according to any one of claims 1 to 5, characterized in that the application of the at least one film or fabric strip (13a-13c) in the radial direction is spiral or roll-shaped.

7. The method according to any one of claims 1 to 5, characterized in that at least one defined circumferential area of the inner wall of the pipeline to be lined (2) covering film or fabric strips

(113a-113d) is applied in the axial direction.

8. The method according to claim 7, characterized in that two or four film or fabric strips (113a-113d) are applied in the axial direction of the pipeline (2).

9. The method according to any one of claims 1 to 7, characterized in that adjacent webs of at least one strip of film or fabric (13a-13c; 113a-113d) applied in the radial direction in a spiral or roll-shaped manner or in the axial direction at least in overlap their edge area.

10. The method according to claim 1, characterized in that the positioning of the at least one film or fabric strip (13a-13c; 113a-113d) on the inner wall of the pipeline (2) to be renovated is carried out without contact.

11. The method according to claim 10, characterized in that the positioning of the film or fabric strips (13a-13c; 113a-113d) on the inner wall of the to be renovated

Pipeline (2) through a pressurized liquid or gaseous medium.

12. The method according to claim 11, characterized in that the medium used for the contactless application of the film or fabric strips contains the curable medium used for impregnating the film or fabric strips (13a-13c; 113a-113d).

13. The method according to any one of claims 1 to 12, characterized in that before the positioning of the at least one film or fabric strip (13a-13c; 113a-113d) a curable medium is sprayed onto the inner wall of the pipeline (2) to be renovated.

14. The method according to any one of claims 1 to 13, characterized in that the on the inner wall of the pipe to be renovated (2) positioned and impregnated with curable medium film or fabric strips (13a-13c; 113a-113d) for fixing the position, preferably by means of Compressed air or gas, is pressurized.

15. The method according to any one of claims 1 to 14, characterized in that a UV-radiation-curable medium, in particular a spray medium, is used as the curable medium for impregnating the film or fabric strips (13a-13c; 113a-113d).

16. The method according to any one of claims 1 to 15, characterized in that for the optical detection of an area to be lined or to be renovated of the pipeline (2) and / or for quality monitoring of a lining device produced on site is used, preferably a video camera (41, 42) monitoring device (40).

17. Device for lining, in particular renovation, of a pipeline (2), the magazine device (10; 110) for receiving and storing several webs of at least one film or fabric strip (13a-13c; 113a-113d), a functional with the magazine device (10) related

Production device (20) for on-site formation of an inner lining covering the area of the pipeline (2) to be lined by directly positioning at least one web of the at least one film or fabric strip (13a-13c; 113a-113d) on the inner wall of the pipeline ( 2), a transport device (30) for moving at least the production device (20) in the longitudinal direction of the pipeline (2) to be renovated, and a curing device (60) for curing the

Has film or fabric strips (13a-13c; 113a-113d) impregnating curable medium.

18. The apparatus according to claim 17, characterized in that the magazine device (10; 110) of the device (1,100) at least one of a drive unit (12; 112a-112d) drivable receiving device (10 ', lla-llc; llla-llld) for has the film or fabric material (13a-13c; 113a-113d).

19. The apparatus according to claim 17, characterized in that each of the receiving units (llla-llld) for the film or fabric strips (113a-113d) can be driven by its own drive unit (112a-112d).

20. The apparatus according to claim 17, characterized in that the production device (20) Injection nozzle unit (23), a transport unit (21, 22) for the film or fabric strips (13a-13c; 113a-113d) and a post-injection nozzle unit (24).

21. The apparatus according to claim 17 or 20, characterized in that the production device (20) of the device (1; 100) has a cutting unit (25) for separating the film or fabric strips (13a-13c; 113a-113d).

22. Device according to one of claims 17 to 21, characterized in that the transport device (30) has a preferably supporting wheels (32) having front transport unit (30a) and a preferably two link chains (37) having rear transport unit

(30b).

23. The device according to claim 22, characterized in that the front support wheels (32) and / or the rear link chains (37) of the transport device (30) are arranged inclined to the vertical.

24. Device according to one of claims 17 to 23, characterized in that a ventilation device (54,55) for fixing the on the inner wall of the pipe to be renovated (2) applied film or fabric strips (13a-13c; 113a-113d) is provided is.

25. Device according to one of claims 17 to 24, characterized in that the device (1; 100) has a tank device (70) for receiving the curable medium, and that the tank device (70) via a line (27) with the injection nozzle unit (23) and / or the post-injection nozzle unit (24) of the production device (20).

26. The apparatus according to claim 25, characterized in that the tank device (70) has a resin tank (71) and a liquid pump (73).

27. The device according to one of claims 17 to 26, characterized in that the energy supply of the device (1; 100) and / or its communication with an external control panel (80) via a cable (81) accommodated in a driven cable drum.

28. Device according to one of claims 17 to 27, characterized in that the tank device (70) of the device (1; 100) with the remaining part (la) of the device (1; 100) by means of a releasable coupling

(72) is connectable.

29. Device according to one of claims 17 to 28, characterized in that the device (1; 100) is a monitoring device (40) for optical detection of the area to be lined or to be renovated of the pipeline (2) and / or for quality control of the production device (20) has liner made on site.

30. The device according to claim 28, characterized in that the monitoring device (40) has at least one video camera (41, 42), preferably equipped with a wide-angle lens.

31. Device according to one of claims 17 to 30, characterized in that the operating speed of the drive units (12; 112a-112d) of the magazine device

(10, -110) the speed of movement of the

Production device (20) in axial or radial

Direction is adjusted.

32. Device according to one of claims 17 to 31, characterized by the use in a method according to at least one of claims 1 to 16.

33. magazine device for a device according to one of claims 17 to 32, characterized in that the • magazine device (10; 110) at least one receiving device (10 '; llla-llc; llla-llld) for the film or fabric material (13a 13c; 113a-113d).

34. Magazine device according to claim 33, characterized in that at least two film or fabric strips (13a-13c) located on different recording units (lla-llc) to form a coherent film or fabric strip

(13) are connectable.

35. Magazine device according to claim 33 or 34, characterized in that the magazine device (10; 110) has a plurality of film or fabric strips (13a-13c) receiving roller unit, and that this roller unit the film or fabric strips (13a-13c) in connected form contains.

36. Magazine device according to claim 33, characterized in that the magazine device (10) contains an interchangeable magazine unit (10 ').

37. Magazine device according to one of claims 33 to 36, characterized in that the film or fabric material (13a-13c; 113a-113d) contained in the magazine device (10; 110) contains glass fiber fabric or Perlon or plastic films or linen or natural fabric.

38. Magazine device according to claim 34, characterized characterized in that each of the receiving units (lla-llc) has a mandrel carrying the respective film or fabric strip (13a-13c), and that successive mandrels can be pushed into one another.