DE102020004265A1 - Procedure for sewer rehabilitation - Google Patents

Abstract

Coating device (1) for applying a coating of a hardenable resin to the inside of pipelines (51) with a sealing coating material reinforced with carbon fibers, which is flowable before hardening and is acted upon with alignment of the carbon fibers for mechanical and abrasive stabilization, which • a supply device (3), which contains the curable coating • a conveying device with an outlet for the curable coating material for coating the inside of a pipe channel (51) • a device for aligning the carbon fibers (32.5) and (23.3) • a pump for transporting the curable coating material to the outlet • a Application device (2) for applying the coating material to a pipe inner wall (51) • a medium line (32.2) for conducting the coating material from a supply device (3) outside the application device (2) to this • a medium line (32.6) for conducting the alignment de r carbon fibers detected by a locking device (32.7) outside the application device (2) to this, characterized in that the coating material fed from the supply device via the medium line to the application device is prepared as a finished carbon fiber-reinforced component provided with aligned carbon fibers and the outlet is movable for different components Angular adjustments with respect to the axis of rotation and the curable coating material exits at different angles with respect to the axis of rotation. The invention introduces a novel technology based on a curable, fiber-reinforced resin, in which the resin is applied to the inner wall surface of the sewer and caused to cure there will. It is an object of the invention to provide a new technique which enables simple and precise rehabilitation of pipe ducts by means of a fiber-reinforced resin.

Description

The invention relates to a method for the interior coating of pipelines with a sealing, flowing coating material (resin) for application to an inner wall of the pipeline and a medium line for transporting the coating material from a supply device outside the application device to the application device and a resin reinforced with aligned fibers.

The rehabilitation of damaged sewer or pipeline systems in the ground or in a wall often leads to a high level of effort. For example, tubular fresh water or sewage ducts or the like are often built in difficult to access, z. B. under road surfaces or as supply lines to buildings in the ground. In buildings these are mostly built into walls.

In the course of time, built-in pipelines are often damaged, for example due to corrosion or growth of roots into the interior of the pipeline, which in turn can lead to leaks. The renovation requires an exchange of the damaged pipe areas. This is associated with a high structural effort and corresponding costs.

To avoid the high expenditure, different devices and methods for sealing an existing pipeline in a damaged area are known. A customary procedure is in the WO 92/01552 A1 described. Here, a hose-like body, called a hose liner and made of a mat-shaped fiber composite material that is soaked in a hardenable resin, is introduced into a channel to be repaired, pressed against its inner wall surface and cured there. The tube is inflated in the channel, the temperature is increased to 40 ° C - 45 ° C to liquefy the resin and resin that has flowed down is pushed up again by a correspondingly increased pressure, and then by further increasing the temperature of the air to over 80 ° C to cure. The measures presented are energy and labor-intensive, further difficulties are an even resin distribution and curing.

Similar procedures are found in the WO 2004/046606 A1 , the DE 42 15 926 A and the DE 10 2010 024 902A1 to find.

In WO 002013/095143 A1 a device is shown with an application head for applying curable plastic to the inner wall of a pipe structure. The application head is moved through a channel and the curable plastic is fed separately in two components in a feed chamber located immediately upstream. The two components are mixed in the feed chamber and then applied to the inner wall of the pipeline via the application head to form a sealing coating. The separate supply of both components results in a relatively high provisioning effort. Internal pipeline diameters are only possible in the range from 80 to 1200 mm. The area of application is therefore limited to small pipe diameters. Further difficulties are the even distribution of the resin and the mechanical and abrasive loading capacity of the coating. The cleaning process of the components exposed to the mixture is also associated with a great deal of effort due to the hardening of the mixed components within a short time, typically within 4 to 10 minutes.

The object of the invention is to provide a device and a method for the simplest and most cost-effective rehabilitation of damaged pipelines.

This object is achieved for the device with the features of claim 1 and for the method with claim 19. With regard to the device, it is provided that the coating material supplied by the supply device via the medium line is prepared as a finished component reinforced with oriented carbon fibers. Ready-to-use means that no additional component has to be added to the component when it is fed in before it is applied. The method provides that the coating material is fed from a supply device via a medium line to the application device as a ready-made component reinforced with oriented carbon fibers.

The coating material is supplied as a fiber reinforced component. This results in the advantage of a simple provision of the coating material for application via the application device, since a storage container of coating material can be sufficient. Furthermore, one line is sufficient for conveying the coating material in the medium line. Furthermore, the cleaning process of, for example, the application device to which the coating material has been applied is facilitated after the coating process, since typically there is no relatively rapid curing within a few minutes, as can occur, for example, when a chemical reaction is triggered by a mixing process when two components are supplied separately.

In an advantageous embodiment it is provided that the application device a Contains distribution head for applying the coating material by spraying. A rotatable arrangement of at least part of the application device around a central longitudinal axis with one or more distributor nozzles is conceivable, the rotation being able to support a uniform application of the coating material. A preferred variant of the distributor head, however, has several distributor nozzles arranged on the circular circumference for spraying the coating material onto the inner wall of the pipeline, whereby a rotational movement and thus rotating parts of the application device can be dispensed with. Here, the distributor nozzles can be inclined at an angle with respect to the central longitudinal axis, so that, for example, the central spray direction has a speed component in the direction of movement of the application device. For an even application, it is advantageous if the distributor nozzles, for. B. are arranged spaced apart from one another at equal angular intervals in the circumferential direction. The spray cone can be set to overlap, as a result of which the inner pipe circumference is given a closed coating. The consideration of the spray indicatrix of the spray cone or the sprayed area resulting therefrom is preferably taken into account in the overlap and coordinated with one another, in particular with regard to the material distribution on the spray area. Furthermore, it can be of advantage if the distributor nozzles also subsequently have certain parameters such. B. angle of inclination with respect to the central longitudinal axis are adjustable. To ensure a uniform spray application, it is also advantageous if the nozzles are matched as well as possible to the viscosity of the coating material. During the spraying process, a sufficiently high pressure should be applied to the application device for the coating material. It should be noted that the pressure depends on the system. According to the prior art, it is known how the design of a pressure level is carried out in relation to a line system. This ensures that, for example, pressure losses via the distributor nozzles or other pressure losses can be mastered and a spray cone with uniform atomization can be produced.

In an alternative advantageous embodiment variant, provision is made for the application device to be provided with a rotatable distributor head for applying the coating material by means of spinning. A relatively low delivery pressure of the coating material can be advantageous and sufficient, since the centrifugal force generated during the rotational movement can also be used for the application.

If the rotation of the distributor head is caused by a drive using compressed air, a mechanical coupling of the distributor head with a drive unit located outside the pipeline can be dispensed with. For this purpose, a separate line carrying compressed air can be assigned to the medium line and thus lead compressed air from a compressed air supply unit assigned to the supply device to the drive of the distributor head. It would also be advantageous if hot air fed to the application device for curing purposes is additionally used for the drive. The hot air may have to have a higher pressure for this.

In order to be able to keep properties such as the viscosity of the coating material largely constant, the application device can advantageously be provided with a temperature control device for influencing the temperature of the coating material that flows through the application device and / or comprises at least parts of the distributor head. The temperature control device can, for example, be operated with water and / or serve for cooling. In this case, the medium line is advantageously assigned an additional water line with which the water is conveyed to the temperature control device.

For simple operation of the coating device, it is advantageous if the supply device comprises at least one of the operating units with a control device, medium line housing, storage container for coating material, device for providing hot air, device for aligning the carbon fibers, locking device and a compressed air supply unit. For compact accommodation and easy handling during operation, it can be advantageous if the medium line housing, the device for providing hot air, the compressed air supply unit and / or the storage container for coating material are integrated into the operating unit. The individual structural units are preferably accommodated in an easily accessible manner, for example via maintenance hatches. Furthermore, it can be advantageous that the medium line housing comprises an unwinding device, wherein the unrolling z. B. can be done by means of a motor. Additionally or alternatively, connections for media, e.g. B. water, (pressure and / or hot) air and / or coating material may be present, so that these can be supplied via separate structural units and collected in the operating unit and supplied to the medium line, divided into individual lines. Furthermore, the storage container for the coating material can contain a feed pump.

For a uniform application, it is beneficial if the application device has a centering device for the axially centered positioning of the Having application device in the pipeline. In this way, the nozzles of the application device are kept at a defined distance from the pipe wall, it being possible in particular for all the nozzles to be evenly spaced from the wall.

It is advantageous for rapid curing of the coating material if the application device comprises a curing device for curing the coating material after it has been applied to the inner wall of the pipe. Furthermore, full hardening is advantageous, but at least partial hardening should be achieved, and complete hardening can then take place. Any flow of the applied coating can be prevented by the curing process and the curing of the coating can take place in a controlled manner.

In an advantageous embodiment variant, the hardening device is designed for hardening the coating material by means of hot air and the medium line is assigned a hot air line connected to the hardening device. The hot air line can be insulated so that heat transfer to other lines of the medium line can largely be prevented. In such a curing device, heat and / or convection can also contribute to the curing of the coating material, and drying processes can also be included.

It can advantageously be provided that the curing device comprises a plurality of air distribution nozzles arranged on a circular circumference for blowing out hot air in the direction of the inner wall of the pipe. The nozzles can advantageously be arranged at a distance from one another in such a way that their air cones overlap in the area of the inner wall of the pipe when blown out, so that the coating material to be cured is exposed to hot air as evenly as possible and thus cured. A rotating curing device would also be conceivable for this purpose. Furthermore, the angle of attack of the nozzles can preferably be inclined and / or adjustable at an angle other than 90 ° with respect to the central longitudinal axis of the pipe. For example, the blowing direction of the hot air can be precisely adjusted, e.g. B. slightly away from the direction of movement of the application device, so that the spray cone of the coating material and the hot air do not overlap during the discharge from the respective nozzles. To achieve a more even outflow of hot air from all air distribution nozzles, which is conducive to even air distribution and thus an even hardening process, an annular hot air plenum upstream of the nozzles on the curing device can be advantageous, so that a more even pre-pressure distribution at the nozzles can be achieved.

For a controllable drying process, it is advantageous if the curing device has at least one temperature sensor for determining the hot air temperature, the supply device is also designed to provide hot air and the temperature sensor is in data transmission connection with the supply device. For this purpose, for example, a data transmission cable can be provided in the medium line, but other suitable data transmission options, such as wireless data transmission options, are also conceivable. It can also be provided that the temperature is fed to the control device for display and / or monitoring. A regulation can also be provided which automatically regulates the hot air temperature to a setpoint value. Hot air is used as an example;

In addition or as an alternative to hot air, the curing device can be designed to cure the coating material by means of UV light. It would also be conceivable to provide a warming IR light.

For easy cleaning after operation, the inside of the line for the coating material is preferably made of material that is not adherent to the coating material, in particular at least partially made of Teflon. Thus, after operation, the line can be blown out in a simple manner with a medium, preferably compressed air or also a cleaning liquid. It would also be conceivable, for example, to decouple the connection from the storage container for the coating material to the medium line in the supply device for a cleaning process. B. a compressor for air or cleaning liquid (with the corresponding liquid) can be attached to the relevant point of the medium line. The corresponding cleaning medium can then be flowed through. At the same time, the distributor nozzles can also be cleaned.

In order to be able to carry out a control of the coating quality after the coating process / curing process, it can advantageously be provided that a test device is assigned to the application device. This control can be used, for example, to check the hardness and / or thickness of the material and can also have a camera, for example. Here, the test device is expediently in the direction of movement behind the Curing device arranged so that during the coating process a certain pipe section is first passed by the distributor head, then by the curing device and then by the testing device.

It can expediently be provided that a movement device is assigned to the coating device, on the basis of which the application device can be moved in the longitudinal direction of the pipeline. A drive arranged outside the pipeline can be assigned to it, e.g. B. a drive arranged outside the pipeline, via which the medium line can be varied in length at a defined speed, for example via a roll-off device, the application device being moved coaxially in the pipeline. But it would also be conceivable that the application device itself has a drive with which it can move in the pipeline.

As a further advantageous variant of the method, provision is made for a curing process to take place at the end of the application process, in which the applied coating material is cured, in particular by means of hot air. If necessary, additional curing by means of UV and / or IR light is also conceivable.

• 1 zeigt eine erfindungsgemäße Beschichtungsvorrichtung zur Innenbeschichtung von Rohrleitungen in schematischer Darstellung.

The invention will then be explained in more detail using an exemplary embodiment with reference to the drawing. It shows:

• 1 shows a coating device according to the invention for the internal coating of pipelines in a schematic representation.

In 1 is a schematic representation of a coating device 1 with a supply device 3 outside a pipeline 5 and an applicator 2 inside the pipeline during operation 5 is located, for applying a coating 52 made of sealing coating material on an inner wall of the pipeline 51 shown. The applicator 2 is via a medium line 4th with a supply device 3 tied together. The medium line 4th A protective and / or bundling sheath over its length 41 on. Inside the sheath 41 various lines of the medium line can be used 4th run, in particular a line to supply the applicator 2 with coating material.

The applicator 2 has a distributor head 22nd on, behind which (based on the direction of movement indicated by an arrow) a curing device with fiber orientation device 23 and again based on the direction of movement behind the curing device with fiber orientation device 23 a testing device 24 is arranged. Here is the distributor head, for example 22nd and the curing device with fiber orientation device 23 of the application device at an axial distance between 2 and 18 cm with respect to their respective axial center to one another and in each case coaxially on a central longitudinal axis M of the pipeline 5 arranged. Furthermore is the test device 24 is also coaxial on a central longitudinal axis M of the pipeline 5 arranged. The test device 24 an advantageous to test device 24 similar compact structure. At least parts of the test device would be conceivable 24 such as B. a camera in the curing device with fiber orientation device 23 to integrate. Measurement signals from the test device can also be used 24 in this itself or at least partially evaluated or passed on to a processing unit remote from it.

The applicator 2 has a centering device 21 so that said coaxially arranged elements of the application device 2 be held in the coaxial position with respect to the pipe. The centering device 21 is the distributor head in the illustrated embodiment 22nd upstream. This is spaced so far that it is not within reach of the coating material while it is being applied by the distributor head 22nd lies. The centering device 21 has at least two rolling or sliding bodies 21.1 with a supporting contact that is with the inner wall of the pipeline 51 is in contact, this being when the application device is moved 2 on the inner wall of the pipeline 51 move along. By means of centering elements 21.2 and stabilizing support elements, e.g. B. like support struts 21.3 , are the rolling or sliding bodies 21.1 to the distributor head 22nd connected so that the supporting force of the centering device 21 on the distributor head 22nd and optionally the curing device with fiber orientation device 23 is transmitted. The support struts 21.3 and / or the sliding bodies can thereby 21.1 or their storage have resilient elements in order to avoid unevenness in the inner wall of the pipeline 51 when moving through the pipeline 5 balance. The centering device is also conceivable 21 at another location or at several different locations on the application device 2 to arrange. Another version of the centering device 21 with the purpose of centering is possible, such as integration in the distributor head 22nd who have favourited the curing device 23 and / or the test device 24 .

The medium line 4th can be flexible between the distributor head 22nd and the curing device with fiber orientation device 23 can be continued and thus the mobility of the application device 2 especially in areas of the pipeline 5 advantageous with tight bending radii design. Likewise, a somewhat stiffer, up to a non-bendable connection of the two elements can be chosen in order to, for. B. to center the other also in the axial centering of one element. This is particularly advantageous when the two elements are arranged in close proximity, e.g. B. between 2 and 8 cm. Furthermore, the connection of the test device 24 to the curing device with fiber orientation device 23 for similar reasons, it can be designed to be flexible, somewhat stiffer, or non-bendable. With a flexible design, the test device 23 appropriately also a centering device 21 be assigned. The medium line between the curing device with the fiber orientation device is also required 23 and testing device 24 expediently no longer to encompass all lines, for example no coating material line or air line.

On the distributor head 22nd are on a distribution ring 22.2 with a circular outer circumference several distributor nozzles 22.1 for applying the coating material to the inner wall of the pipe 51 arranged. The distribution nozzles are arranged here 22.1 circumferentially at equal angular distances from one another so that the coating material is applied as evenly as possible. A ring plenum for coating material can be provided in the distributor ring in order to achieve a uniform pre-pressure at the nozzles 22.1 and that in turn can promote an even application. Here are the nozzles 22.1 designed for the viscosity range of the coating material so that an optimal application can be achieved. Other suitable embodiments of the distributor head are also possible 22nd conceivable. So can the distributor head 22nd eg the use of several rows of nozzles and / or a rotatable distributor head 22nd for spraying or spinning the coating material onto the inner wall of the pipeline 51 exhibit. Likewise, the drive of any rotatable parts of the application device 2 by means of a shaft or, advantageously, by means of compressed air.

The curing device with fiber orientation device 23 is behind the distributor head 22nd arranged and for targeted application of the applied coating 52 formed with hot air so that a faster drying or curing process of the coating material can be brought about. The curing device 23 an air distribution ring 23.2 on, on whose circular outer circumference air distribution nozzles are arranged. The air distribution nozzles 23.1 are positioned at equal angular distances from one another in the circumferential direction so that hot air is applied to the coating as evenly as possible. The curing device with fiber orientation device 23 contains a connection to one of the medium lines 4th assigned hot air line for supplying hot air. The curing device also includes a fiber orientation device 23 Connection for electro-magnetic alignment of the fibers.

The coating device 1 is for supply and operation with the supply device 3 equipped, for example, outside the pipeline 5 can lie. In the present example, the supply device is 3 an operating unit 32 with a control device 32.1 , a medium line housing 32.2 to accommodate the medium line 4th and a hot air generator 32.3 assigned as a device for providing hot air. By integrating various components of the supply facility 3 in the operating unit 32 the result is an advantageous, compact and easily manageable coating device 1 . Furthermore, the control unit 32.1 a control panel or a display unit with a visual display for operating and / or monitoring the coating device 1 include. In the medium line housing there can be an unrolling or rolling device for the targeted lengthening or shortening of the extended section of the medium line 4th be available with an associated electric drive. Likewise, the integration of further components in the supply device 3, those in the operating unit 32 can be integrated or arranged separately.

The supply device 3 has a storage container 31 with coating material, coupled to the operating unit 32 via a feed line 31.1 and a connector 32.4 . The coating material is inside the operating unit 32 preferably a line of the medium line 4th fed. Via a medium line 32.6 can the device 32.5 to influence the alignment of the carbon fibers in connection with the storage container 31 to be brought. It is also advantageous for conveying the coating material through the medium line 4th a feed pump in z. B. the operating unit 32 to be provided. Due to the separate arrangement of the storage container 31 there is good accessibility and thus an emptied coating material container can easily be replaced. Furthermore, other substances or other media such as hot air can enter other lines of the medium line 4th are fed. The medium line 4th electrical lines are also assigned, for example a data transmission connection between sensors or other electrical components of the application device 2 and the control device 32.1 or the processing device, which in turn is part of the control device 32.1 can be. As a result, the material and electricity lines are in the operating unit 32 bundled on the applicator 2 should be available and via the medium line 4th the applicator 2 fed.

The applicator 2 gets through the pipeline during a coating process 5 moved through it at a constant speed. Here z. B. the drive via the medium line 4th take place, the length of which z. B. can be moved evenly on the roll-off device. To control the layer thickness of the applied coating material, the speed is a parameter for setting the layer thickness, in addition to other parameters such as spray strength. In the present example, the application device is moved in the direction of the medium line 4th or the supply device 3 . A movement in the opposite direction would also be conceivable, and thus in the direction of the medium line 4th averted direction. The order of the units would be the application device 2 possibly to be adjusted so that the sequence described below is adhered to within the coating process.

When coating the inner wall of the pipeline 51 a point to be coated is removed from the distributor head during an application process 22nd happened. The coating material is applied to the inner wall of the pipeline 51 applied as evenly as possible in a layer closed over the circumference of the pipeline. The coating material is still flowable when it is applied. Then an orientation device for aligning the carbon fibers with an advantageous electro-magnetic device passes and aligns it appropriately. This is followed by a curing device with a fiber orientation device 23 the coated area. A curing process then takes place, e.g. B. by means of hot air, to a solid and / or flexible layer. A hardening of the coating material before it reaches the inner wall of the pipeline 51 can be achieved by preferentially setting the spray cone of the distributor nozzles 22.1 and the blowing direction of the air distribution nozzles 23.1 take place in such a way that they do not overlap and the coating material hardens before it reaches the inner wall of the pipeline 51 is prevented. In particular, the time between application of the coating and hardening influence the properties of the coating material but also the spacing, the setting of the spray or blow-out cones and the distribution nozzles 22.1 from the air distribution nozzles 23.1 and the speed of the application device 2 at which it moves along the inner wall of the pipe 51 is moved.

It would be conceivable to apply two layers of a coating material in the same coating process. In a first step, the coating material is applied and cured. Then, in the second step, another layer is applied to the first using the same coating process. For this it would be possible behind the curing device with a fiber orientation device 23 another distributor head 22nd possibly followed by another curing device 23 to arrange.

The quality of the coating can then be checked at the cured point in question in a control process during the coating process with the testing device moved past it 24 in relation to B. are checked and controlled for their layer thickness and / or hardness or mechanical stability.

The storage container 31 can be used for cleaning the coating device 1 disconnected and then connected to the connection 32.4 z. B. a compressor can be connected. In this case, the line of the coating material of the medium line can due to compressed air 4th and the distributor head 22nd blown through with high pressure. It is advantageous to at least partially coat the inside of the corresponding line with a material that is not adherent to the coating material, in particular Teflon, and / or the line is made of Teflon. By blowing compressed air through it, it is possible to remove the coating material easily and without environmentally harmful cleaning agents from the line and the distributor head 22nd to remove.

The disclosed embodiment and its variants represent a coating device that is comparatively easy to use 1 with a comparatively simple, environmentally friendly coating process.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 9201552 A1 [0004]
• WO 2004/046606 A1 [0005]
• DE 4215926 A [0005]
• DE 102010024902 A1 [0005]
• WO 002013/095143 A1 [0006]

Claims (19)

Coating device (1) for applying a coating of a hardenable resin to the inside of pipelines (51) with a sealing coating material reinforced with carbon fibers, which is flowable before hardening and is acted upon with alignment of the carbon fibers for mechanical and abrasive stabilization, which • a supply device (3), which contains the curable coating • a conveying device with an outlet for the curable coating material for coating the inside of a pipe channel (51) • a device for aligning the carbon fibers (32.5) and (23.3) • a pump for transporting the curable coating material to the outlet • a Application device (2) for applying the coating material to a pipe inner wall (51) • a medium line (32.2) for conducting the coating material from a supply device (3) outside the application device (2) to this • a medium line (32.6) for conducting the alignment processing of the carbon fibers by a locking device (32.7) outside of the application device (2) to this, characterized in that the coating material fed from the supply device via the medium line to the application device is prepared as a finished carbon fiber-reinforced component provided with aligned carbon fibers and the outlet is movable for is different angular settings with respect to the axis of rotation and the curable coating material exits at different angles with respect to the axis of rotation. Coating device (1) according to Claim 1 characterized in that the application device (2) has a distributor head with a supply line and an electromagnetic device for orienting the carbon fibers for applying the coating material by means of spraying. Coating device (1) according to Claim 2 characterized in that the distributor head comprises an outlet opening arranged on a circular circumference for spraying the coating material onto the pipe wall. Coating device (1) according to Claim 3 characterized in that the distributor head has a plurality of distributor nozzles (22.1) arranged on a circular circumference for spraying the coating material onto the inner wall of the pipe. Coating device (1) according to Claim 1 characterized in that the application device (2) comprises a rotatable distributor head (22) for applying the coating material by centrifugation. Coating device (1) according to Claim 4 characterized in that the rotation of the distributor head (22) is brought about by compressed air. Coating device (1) according to one of the preceding claims, characterized in that the supply device (3) has at least one of the structural units operating unit (32) with a control device (32.1), medium line housing (32.2), storage container (31) for coating material, device for providing hot air and a compressed air supply unit, a device for aligning the carbon fibers (32.5), a medium line (32.6) for directing the alignment of the carbon fibers and a locking device (32.7). Coating device (1) according to one of the preceding claims, characterized in that the application device (2) has a centering device (21) with which the application device (2) is axially centered in the pipeline (5). Coating device (9) according to one of the preceding claims, characterized in that it contains a curing device with a fiber orientation device (23) for curing the coating material after application. Coating device (1) according to one of the preceding claims, characterized in that the curing device with fiber orientation device (23) is designed by means of hot air and the medium line (4) is connected to the curing device with fiber orientation device (23) via a hot air line. Coating device (1) according to Claim 9 or 10 , characterized in that in the curing device with fiber orientation device (23) several air distribution nozzles are arranged on a circular circumference and are oriented towards the inner wall of the pipe (51) for blowing out hot air. Coating device (1) according to Claim 10 or 11 , characterized in that the curing device with fiber orientation device (23) for measuring the hot air temperature contains at least one temperature sensor, the temperature sensor is in a data transmission connection with the supply device (3) and the supply device (3) is designed for the provision of hot air. Coating device (1) according to one of the Claims 10 until 12th , characterized in that the hot air in the area of the curing device with fiber orientation device (23) has a temperature between 50 ° C and 140 ° C. Coating device (1) according to one of the Claims 9 until 13th , characterized in that the curing of the coating material takes place in the curing device with fiber orientation device (23). Coating device (1) according to one of the preceding claims, characterized in that the inside of the medium line (4) is equipped with a material which is non-adhesive for the coating material. Coating device (1) according to one of the preceding claims, characterized in that the application device (2) is provided with a test device (24). Coating device (1) according to one of the preceding claims, characterized in that the application device (2) is assigned a movement device with which the application device (2) can be moved in the longitudinal direction of the pipeline (5). A method for the internal coating of pipelines (5) with a sealing coating material by a coating device (1), in which an application device (2) is moved coaxially in a pipe (5) during the coating process via a drive and coating material is applied to a pipeline (5) due to a spraying or centrifugal process Pipeline inner wall (5) is applied, characterized in that the coating material is fed as a ready-made component from a supply device (3) via a medium line (4) to the application device (2). Procedure according to Claim 18 , characterized in that a curing process takes place during the coating process for curing the coating material, in which the applied coating material is cured, also using hot air.

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