EP2215396A1 - Dispositif de durcissement de films plastiques employés pour la réfection de canalisations - Google Patents

Dispositif de durcissement de films plastiques employés pour la réfection de canalisations

Info

Publication number
EP2215396A1
EP2215396A1 EP08701455A EP08701455A EP2215396A1 EP 2215396 A1 EP2215396 A1 EP 2215396A1 EP 08701455 A EP08701455 A EP 08701455A EP 08701455 A EP08701455 A EP 08701455A EP 2215396 A1 EP2215396 A1 EP 2215396A1
Authority
EP
European Patent Office
Prior art keywords
camera
sensors
light
control unit
curing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08701455A
Other languages
German (de)
English (en)
Inventor
Thomas Reutemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2215396A1 publication Critical patent/EP2215396A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/18—Appliances for use in repairing pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/10—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation for articles of indefinite length

Definitions

  • the invention relates to a device for curing plastic refiners for sewer rehabilitation with at least one UV light source, wherein rollers for supporting the device in the sewer pipe and a video camera are provided and wherein a traction device is provided, with which the device pulled through the sewer pipe to be rehabilitated becomes.
  • the known devices are very inflexible. Either they are suitable for larger pipe diameters and longer lengths or for smaller pipe diameters and shorter lengths.
  • the object of the invention is to overcome the disadvantages mentioned and to propose a device which can be used flexibly, the application of which is also comprehensible at any time and can be documented.
  • the video camera may be oriented counter to the pulling direction.
  • Two or more rows of light emitting diodes arranged side by side may be provided, preferably three or more rows for illuminating the tube, wherein the respective rows may be arranged at an angle to the longitudinal axis of the device.
  • the angles of the individual rows can be different from each other. It has proven to be very advantageous if a row of LEDs has an angle of 90 ° to the pulling direction. It is also very advantageous if a row of LEDs has an angle of 110 ° to the pulling direction. In addition, it is very advantageous if a row of LEDs has an angle of 120 ° to 125 ° to the pulling direction.
  • a combination of these three rows results in a very good illumination of the recording field of the camera with these orientations both for small and large pipe diameters.
  • the video camera should as well as the ring of light-emitting diodes or the like heat resistant to at least 12O 0 C be formed.
  • the video camera preferably has an opening angle for the recordings between 130 and 150 °.
  • Another camera may be provided, which is aligned in the pulling direction.
  • the second camera should be designed in a miniature construction and have a maximum diameter of 25mm.
  • the first and the second camera should be heat resistant formed to at least 12O 0 C.
  • At least one device for position detection can be provided, which can also be designed as a rotary encoder.
  • This device for detecting the position should also be heat-resistant to at least 12O 0 C.
  • At least one sensor may be provided for scanning the pipe inside, but it is very advantageous if a plurality of sensors are arranged uniformly on the circumference of the device. It has proved to be particularly advantageous if three sensors are provided.
  • the sensors can be designed as infrared sensors and should be heat-resistant to at least 12O 0 C.
  • the light source, cameras, sensors are connected to a control unit, wherein the control unit can be modular.
  • the control unit has at least one module for controlling a UV light source. It is also possible to use several modules for the control of UV Be provided light sources with different power. The modules themselves can have a controllable output for controlling a UV light source.
  • a recording module for recording process parameters and / or images and / or videos can be provided.
  • a control module For controlling and controlling all parts of the control unit, a control module may be provided.
  • connection between the light source, cameras, sensors and control unit can be designed as a CAN bus.
  • the second camera can be configured to be switchable to the camera signal of the first camera via a preferably heat-resistant switching unit.
  • the cable connection between the light source, cameras, sensors and control unit can be made interchangeable.
  • the liner can be monitored after curing via the first camera, whereby the camera's exposure field is illuminated via the illumination ring.
  • the second camera can be used to monitor the liner before curing.
  • the recorded parameters can be recorded and correlated with each other.
  • the camera images can be correlated with the orientation and thus adjusted according to the pipe position.
  • the extension of the opening angle of the optics of the first video camera from 90 ° to now 145 ° also allows the detection of pipes with a diameter of up to 1200mm or even more. This makes it possible for the first time the renovation of such large sewer pipes by drawing a liner and its curing with UV light.
  • the field of vision In order to be able to recognize any liner defects in the field of vision of the first video camera, the field of vision must be illuminated. This is not possible with the known lighting. It can not be achieved uniform illumination. In order to solve this consequential problem, a lighting ring made of very bright light-emitting diodes is used, as already explained. These ensure a uniform and sufficiently bright illumination. For different pipe diameters, the LEDs would have to be aligned differently, respectively, in order to achieve the intended and desired illumination in the relevant area. Therefore, the use of a multiple ring is proposed according to the invention, in which the light emitting diodes of the individual rings each have a different orientation.
  • a second camera may be provided, which is aligned in the pulling direction of the device.
  • This camera has a very small construction and has a maximum diameter of 25mm.
  • the second camera can be switched by means of a switching device to the camera signal of the first camera, so that especially with analog transmission to the control unit transmission channels, ie wires of the cable connection can be saved.
  • the course of curing is detected by sensors. Since the curing takes place as an exothermic polymerization, temperature sensors, preferably IR temperature sensors can be used. These are distributed uniformly over the circumference of the device. Since such temperature sensors always determine an average value from the detection range and advocatesf ern and the detection range depends very much on the distance between the sensor and the surface to be measured, very ambiguous values can be determined. This is due to the fact that the device is not pulled centrally through the pipe. A complete adaptation to the pipe diameter is not possible because then the device can not be pulled through due to irregularities in the pipe. Therefore, the device will always lie deeper than the center of the pipe. In addition, there is the problem that it can not be guaranteed from the outset, which orientation the device has inside the tube. In addition, the device can rotate when pulling around its longitudinal axis.
  • the determined values of the sensors can be better correlated, evaluated and interpreted.
  • a rotary encoder is provided, by means of which the orientation of the device in the tube can be determined. With this information, the recorded temperature data and also the video images can be adapted to an artificial horizon. The data and images are then very easy to understand and understand.
  • a CAN bus is proposed according to the invention. This uses a serial transmission method, which can be backed up by additional parity information and thus is very susceptible to interference in comparison to analog transmission methods. This not only enables longer transmission lengths, but also allows more information to be transmitted. Thus, it is conceivable that the video images of the first and second camera are transmitted simultaneously. At the same time, the temperature information and the position information are transmitted. In addition, further information about the already traveled distance or monitoring data for the UV lamps can be transmitted.
  • All components of the device should be heat resistant to 12O 0 C, so that they survive the temperatures occurring during curing harmless.
  • Precision parts in particular must be made of special heat-resistant materials so that they do not change their shape or size significantly.
  • the control unit can be modular and have one or more modules for controlling UV lamps.
  • a recording module for images and other data over the time or pipe position can be provided.
  • a control module controls the device.
  • the device and the control unit can be connected to each other via various cables, so that different lengths can be realized. It is also possible to connect devices with different lamp configurations.
  • a plastic liner is introduced into a sewer pipe and then cured with the device by UV radiation, the process parameters are monitored during curing, the curing temperatures recorded via infrared sensors, the positions of the device in the tube are determined and recorded ,
  • This recording makes it possible to record not only the internal pressure, air and surface temperatures, speeds, distances traveled, time, ignited emitters, video images, performances of the ignited emitters, horizontal and vertical position of the device and / or UV intensity, but to relate all these parameters to each other.
  • the tube length for each tube position, the real-time video images are retrievable, as well as the entire relevant data. It is also conceivable that the Aushärte Scheme be retrievable depending on the recorded video.
  • the recording data can be stored for example via a video PC on a data carrier and are thus kept for documentation purposes. The proper execution of the renovation can be proven at any time.
  • Fig. 1 shows a schematic structure of a device according to the invention for curing plastic inner liners for sewer rehabilitation by means of UV light and
  • Fig. 2 shows a schematic structure of a complete system which the
  • Control and recording units contains and is provided with control and recording units.
  • a device for curing plastic inner liners for sewer renovation by means of UV light is designated.
  • This device is provided with adjustable wheels 10, which are adaptable to the respective pipe diameter.
  • the device is equipped with eight UV lamps 2, each with an adjustable power between 400 and 650W.
  • the device 1 is pulled by a pull rope 3 through the pipe. Contrary to the defined by the pull rope 3 Pulling direction, a video camera 4 is mounted, which monitors the cured liner.
  • the camera 4 has an optical system with approximately 145 ° aperture angle, aperture approximately 2.0.
  • a triple lighting ring 5 is provided, which is equipped with very bright LEDs.
  • the individual diode rows 5a, 5b and 5c each have a different orientation.
  • the diode row 5a is oriented at 90 ° to the pulling direction, whereas the diode row 5b is aligned at 110 ° and the diode row 5c at 125 °, which ensures excellent illumination for pipe diameters between DN 150 and DN 1200 or even greater.
  • a rotation sensor 6 is provided, which is able to detect the rotational position of the device 1 in the tube.
  • three infrared sensors 7 are provided, which are distributed uniformly over the circumference of the device 1. But it is also conceivable that further sensors 7 are provided.
  • the device 1 is controlled by a control unit 11.
  • the connection between device 1 and control unit 11 is made via a cable 8.
  • the cable 8 can be used simultaneously as a traction cable 3.
  • a second camera 9 is mounted, which is able to monitor the liner before its curing.
  • the control unit 11 is modular.
  • a power module 12 is provided for controlling and igniting the lamps.
  • This power module 12 is equipped for 10 spotlights with a power of between 400 and 650 watts.
  • the power module 12 in this case has a ballast 12a, which performs the actual control of the lamps 2.
  • the ballast 12a in turn is controlled by a frequency converter 12b, whereby control and adjustment of the Lamp power between 400 and 650 watts is possible without leaving the optimal working range of the lamps 2.
  • This relatively low power module 12 is intended to drive devices 1 used to rehabilitate sewer pipes having a maximum diameter of DN600.
  • a second power module 13 may be provided, which is intended to drive 6 radiators with a power between 800 and 1200 watts.
  • the actual lamp control via a ballast 13 a, which is controlled by a frequency converter 13 b, so that the lamp power can be made for example to the levels 800 watts, 1000 watts or 1200 watts.
  • Devices 1 with these lamp powers are intended for the rehabilitation of sewer pipes with a diameter of up to DN 1200 or more.
  • the power modules 12 and 13 are controlled by a control module 14.
  • a data and video recording module 15 is also provided, which is responsible for the recording of the process parameters, the video images and their representation in correlation and on an artificial horizon.
  • All modules 12, 13, 14 and 15 are integrated together in a rack and are easily interchangeable.
  • cables are provided with 140m and 300m, which can be used optionally.
  • the 140m cable 8 is wound on a portable cable drum, whereas the 300m cable 8 is fixedly mounted on a truck.
  • the cables can be connected in a simple manner both to the power modules 11 and 12 and to the device 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Studio Devices (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne un dispositif (1) de durcissement de films plastiques employés pour la réfection de canalisations, comprenant au moins une source de lumière UV (2), ainsi que des cylindres (10) servant d'appui au dispositif (1) dans le tube de canalisation et une caméra vidéo (4). Selon l'invention, un dispositif de traction (3) permet au dispositif d'être tracté à travers le tube de canalisation à rénover, un anneau (5) équipé de diodes luminescentes ou analogues servant à éclairer le tube dans la zone de prise de vue de la caméra vidéo (4).
EP08701455A 2007-11-04 2008-01-14 Dispositif de durcissement de films plastiques employés pour la réfection de canalisations Withdrawn EP2215396A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007052915A DE102007052915A1 (de) 2007-11-04 2007-11-04 Vorrichtung zum Aushärten von Kunststofflinern zur Kanalsanierung
PCT/EP2008/050327 WO2009056362A1 (fr) 2007-11-04 2008-01-14 Dispositif de durcissement de films plastiques employés pour la réfection de canalisations

Publications (1)

Publication Number Publication Date
EP2215396A1 true EP2215396A1 (fr) 2010-08-11

Family

ID=40070987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08701455A Withdrawn EP2215396A1 (fr) 2007-11-04 2008-01-14 Dispositif de durcissement de films plastiques employés pour la réfection de canalisations

Country Status (4)

Country Link
US (1) US20100308510A1 (fr)
EP (1) EP2215396A1 (fr)
DE (1) DE102007052915A1 (fr)
WO (1) WO2009056362A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009025829A1 (de) * 2009-05-18 2010-11-25 Thomas Reutemann Vorrichtung zum Aushärten von Kunststofflinern
US8807873B2 (en) * 2012-07-30 2014-08-19 Lmk Technologies, Llc Manhole liner having a wireless data transmitter
DK177499B1 (en) * 2012-09-26 2013-07-29 Othonia Curing Technology Aps COMPUTER-CONTROLLED UV-LED Curing Apparatus
DE102015117206A1 (de) * 2015-10-08 2017-04-13 I.S.T. Innovative Sewer Technologies Gmbh Aushärtevorrichtung mit einer UV-Licht erzeugenden Lampe
GB2551486A (en) 2016-06-15 2017-12-27 Integration Tech Limited Curing tool
DE102017107977A1 (de) 2017-04-12 2018-10-18 Bernd-Jan Krasowski Vorrichtung zum Sanieren einer Rohrleitung mittels eines Auskleide-Faserschlauchs
DE102017108053A1 (de) 2017-04-13 2018-10-18 Bernd-Jan Krasowski Vorrichtung für Inspektions- und/oder Wartungsarbeiten in begehbaren oder unbegehbaren Kanalisationsanlagen mit einer digitalen Kamera
US11674628B2 (en) 2017-08-18 2023-06-13 Moray Group, Llc Method, apparatus and system for lining conduits

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205113C1 (en) * 1992-02-20 1993-04-29 Softlining Ag Systems For Relining, Thun, Ch Radiation source for irradiating inner walls of long hollow chambers - has framework contg. central, carrier in which 1st set of lamps are arranged equidistantly and 2nd set are displaced w.r.t. 1st set
DE19817413C2 (de) * 1998-04-18 2002-09-19 Uv Reline Tec Gmbh & Co Verfahren und Vorrichtung zum Sanieren von Rohrleitungen
FI20020854A (fi) * 2002-05-06 2003-11-07 Sakari Kuikka Laitteisto ja menetelmä viemäriputkien tarkastamiseksi
GB0312999D0 (en) * 2003-06-06 2003-07-09 Breval Technical Services Ltd Conduit inspection apparatus and method
CA2595453C (fr) * 2005-01-18 2016-02-23 Redzone Robotics, Inc. Plate-forme mobile d'inspection autonome

Non-Patent Citations (1)

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Title
See references of WO2009056362A1 *

Also Published As

Publication number Publication date
DE102007052915A1 (de) 2009-05-20
WO2009056362A1 (fr) 2009-05-07
US20100308510A1 (en) 2010-12-09

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