SYSTEM FOR CURING A LINING TUBE

Abstract

The present invention relates to a system for curing a lining sleeve comprising a curing device with a radiation source, a lining sleeve with a curable ply and an outer film arranged around the curable ply, a measuring device, which is arranged between the curable ply and the outer film and/or on or at a distance outwardly from the outer side of the curable ply, the measuring device being designed and set up to sense a measured value representative of the curing of the curable ply, and also an open-loop or closed-loop control device, which is designed and set up to control the advancement of the curing device in the lining sleeve and/or the power output of the radiation source of the curing device in an open-loop or closed-loop manner in dependence on the measured values sensed by the measuring device on the outer side of the curable ply.

Claims

1. A system for curing a lining sleeve comprising a curing device with a radiation source, a lining sleeve with a curable ply and an outer film arranged around the curable ply, a measuring device, which is arranged between the curable ply and the outer film and/or on or at a distance outwardly from the outer side of the curable ply, the measuring device being designed and set up to sense a measured value representative of the curing of the curable ply, and also an open-loop or closed-loop control device, which is designed and set up to control the advancement of the curing device in the lining sleeve and/or the power output of the radiation source of the curing device in an open-loop or closed-loop manner in dependence on the measured values sensed by the measuring device on the outer side of the curable ply.

2. The system according to claim 1, characterized in that the measuring device is designed and set up to measure a temperature, a dielectric constant, a colour and/or a state of the curing of the curable ply by means of ultrasound.

3. The system according to claim 1, characterized in that the measuring device senses a multiplicity of measured values on the basis of measuring points along the longitudinal direction of the lining sleeve, the distance between the measuring points being determined in particular by the effective range of the radiation source, there preferably always being at least N measuring points arranged in the effective range of the radiation source, where N=1, 2, 3, 4, 5, 6, 7, 8 or 9.

4. The system according to claim 3, characterized in that an exclusively discrete sensing of measured values is performed on the basis of measuring points arranged at a distance from one another.

5. The system according to claim 1, characterized in that the measuring device senses measured values continuously over the entire length of the lining sleeve along its longitudinal direction

6. The system according to claim 1, characterized in that the measuring device is arranged to sense measured values in the lower third, in particular directly at the bottom and/or at the bottom region of the lining sleeve.

7. The system according to claim 1, characterized in that the curing device comprises as a radiation source a gas discharge lamp, a short arc lamp, a stroboscope lamp, a flash lamp, light-emitting diodes (LEDs), an arc lamp, in particular a xenon lamp, and/or a mercury-xenon lamp, the lighting means in particular providing or being able to provide at least ten percent (10%), in particular at least fifty percent (50%), of the radiation energy in a wavelength range from 351 to 800 nm, in particular in a range from 380 nm to 800 nm, in particular in a range from 380 nm to 700 nm, preferably in a range from 390 nm to 470 nm, or in a range from 400 nm to 800 nm.

8. The system according to claim 1, characterized in that the measuring device comprises an RFID transponder to transmit the measured values wirelessly to the open-loop or closed-loop control device.

9. The system according to claim 1, characterized in that the curing device is in operative connection by means of a cable, in particular a cable comprising Kevlar fibres and/or at least one pulling rope, and/or pulling ropes, to move the curing device through the lining sleeve.

10. The system according to claim 1, characterized in that the control device is designed and set up to control the advancement of the curing device in the lining sleeve and/or the power output of the radiation source of the curing device automatically in a closed-loop manner in dependence on the measured values sensed by the measuring device.

11. The system according to claim 10, characterized by defining at least a first threshold value for a measured value representative of a non-cured lining sleeve and at least a second threshold value, different from the first threshold value, representative of a cured lining sleeve, wherein a rate of advancement of the curing device through the lining sleeve is reduced if the measured value is below the first threshold value and is increased if the measured value is above the second limit value and/or the power output of the curing device is increased if the measured value is below the first limit value and reduced if the measured value is above the second limit value.

12. The system according to claim 11, characterized by the threshold values being fixable or fixed in dependence on the lining sleeve to be cured, in particular in dependence on the diameter of the length of the lining sleeve to be cured.

13. The system according to claim 1, characterized in that a display device is comprised, in operative connection with the open-loop or closed-loop control device, and the display device being designed and set up to display a graphic representation of the measured values sensed by the measuring device, with in particular a first graphic representation being displayed for a first measured value in the case where the lining sleeve is not yet cured and a second graphic representation being displayed if the lining sleeve is cured.

14. The system according to claim 13, also comprising an input device for controlling the advancement and/or the power output of the curing device by a user, in particular on the basis of the graphic representation displayed on the display device.

15. A method for rehabilitating lines, in particular sewers, shafts or the like, comprising the following method steps, in particular in this sequence and in particular comprising the system according to one of the preceding claims: a) inserting a lining sleeve into the line, the lining sleeve comprising at least one ply that can be cured and/or cures by activation and also an outer film arranged on the outside around the curable ply, the lining sleeve comprising at least one measuring device that is designed and set up to measure a measured value representative of a curing of the curable ply on the outer side of the curable ply at a multiplicity of measuring points and/or continuously and is arranged between the curable ply and the outer film and/or on the outside of the curable ply; b) introducing a curing device comprising a radiation source, with which the curing of the curable ply is activated, into the lining sleeve; c) expanding the lining sleeve, in particular by means of a fluid, preferably compressed air, so that the lining sleeve lies against the inner wall of the line; d) advancing the curing device through the line system, the curing device being activated or having been activated for curing the curable and/or curing ply, and the advancement of the curing device in the lining sleeve and/or the power output of the radiation source of the curing device being controlled in an open-loop or closed-loop manner in dependence on the measured values sensed by the measuring device on the outer side of the curable ply.

16. The method according to claim 15, characterized by the display of a graphic representation of the measured values sensed by the measuring device on a display device, with a first graphic representation for a first measured value being displayed in the case where the lining sleeve is not yet cured and a second graphic representation being displayed if the lining sleeve is cured.

17. The method according to claim 16, characterized in that a graphic representation of the temperature at each measuring point of the multiplicity of measuring points is displayed, in particular of those measuring points in the active range of the curing device and/or around the active range of the curing device.

18. The method according to claim 16, characterized in that a user controls the rate of advancement and/or the power output of the radiation source on the basis of the at least one graphic representation.

19. The method according to claim 15, characterized in that a control device automatically controls the rate of advancement of the curing device through the lining sleeve and/or the power output of the curing device on the basis of the measured values sensed by the measuring device.

Description

[0083] In the figures:

[0084] FIG. 1 shows a schematic sectional view of a lining sleeve according to the invention; and

[0085] FIG. 2 shows a schematic view of a flow diagram of a method according to the invention.

[0086] FIG. 1 shows a lining sleeve 1 according to the invention with an inner film 3, a curable ply 5 and also an outer film 7. Between the outer film 7 and the curable ply 5, a measuring device 9 is arranged.

[0087] In FIG. 2, a schematic flow diagram of a method according to the invention is shown. In a first step 100, a lining sleeve according to the invention is inserted into a line to be rehabilitated. In the subsequent method step 200, the curing device is introduced into the lining sleeve. After introducing the curing device, pressure is applied to the lining sleeve in a method step 300, so that it comes to lie against the walls of the line to be rehabilitated. In a method step 400, the advancement of the curing device in the lining sleeve and/or the power output of the curing device is controlled in an open-loop or closed-loop manner in dependence on the measured values sensed by the measuring device on the outer side of the curable ply. If in this case for example the measured temperature is higher than a first threshold value, in a step 410 the rate of advancement of the curing device is increased and/or the power output of the radiation source is reduced. If for example the measured temperature is lower than a second threshold value, in a step 420 the rate of advancement of the curing device is reduced and/or the power output of the radiation source is increased.

[0088] The features of the invention disclosed in the foregoing description and the claims may be essential both individually and in any desired combination for implementing the invention in its various embodiments.