EP3881001A1 - Verfahren zum sanieren von schadhaften leitungswandungen im bereich des anschlusses einer nebenleitung an eine hauptleitung - Google Patents
Verfahren zum sanieren von schadhaften leitungswandungen im bereich des anschlusses einer nebenleitung an eine hauptleitungInfo
- Publication number
- EP3881001A1 EP3881001A1 EP18847266.6A EP18847266A EP3881001A1 EP 3881001 A1 EP3881001 A1 EP 3881001A1 EP 18847266 A EP18847266 A EP 18847266A EP 3881001 A1 EP3881001 A1 EP 3881001A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- expansion body
- cover element
- line
- renovation
- formwork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/1645—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
- F16L55/16455—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe a part of the tool defining, together with the inner wall of the pipe, an enclosed space into which sealing material is injected
-
- 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
- F16L55/179—Devices for covering leaks in pipes or hoses, e.g. hose-menders specially adapted for bends, branch units, branching pipes or the like
Definitions
- the present invention relates to methods for the remediation of defective
- a self-propelled sewer renovation robot or one that can be moved in the sewer with ropes comprises a carrying device for various renovation tools.
- Spatula can be placed after positioning the robot in the
- Sewer renovation robot a carrying device for one in the area of
- Auxiliary duct connection to the wall of the main line forms a cover.
- the cover carries on its side an insertable in the secondary line,
- expandable expansion body also called bladder.
- this expansion body bears against the wall of the secondary line and then forms a formwork together with the cover, which supports a viscous sealing compound introduced into this formwork before it cures.
- the expansion body is contracted and the cover removed and the sealing compound forms the restored, previously defective Channel wall areas.
- a cover according to the prior art also referred to as a formwork collar, is in one embodiment
- Sewer renovation device in which the renovation mass is arranged around the initially limp expansion body and is then moved together with this into the secondary duct. When the expansion body expands, it pushes the renovation compound radially against the damaged duct wall.
- Processability time of reactive materials It is the time between the mixing of a multicomponent substance and the end of it
- Processability i.e. the time in which the substance can still be removed from the pot and processed.
- the application of the formwork comprises several steps. First, the cover element is expanded in the main line, then the expansion body is inserted through a cutout in the secondary line and is also expanded by inserting a small needle-shaped connecting element into the valve of the expansion body. Then a
- Closure in the cover can be opened, and there the outlet of a line for transporting the renovation compound into the space between the formwork formed by the cover and the expansion body and the existing walls are pressed.
- a disadvantage of the known devices is that although the problem of the correct pressurization can be minimized by dispensing with external supply lines for the renovation compound, a long curing time is necessary since the renovation compound carried must have a sufficiently large pot life.
- the setting of the expansion body is particularly complex. In order to expand the expansion body, compressed air must be applied to it.
- the valve of the expansion body is small and must be controlled precisely by means of a boom in which a mostly needle-shaped connecting element is inserted into it. This connection is difficult for a user who controls the boom by means of camera images and often requires several attempts. In the worst case, the expansion body is even destroyed. Especially because of this time-consuming expansion of the expansion body, a long pot life of the renovation compound must be selected. During the travel time of the
- the object of the present invention was to overcome the disadvantages of
- This object is achieved by a method for the renovation of damaged line walls in the area of the connection of a secondary line to a main line, comprising the following steps, in particular in this
- Sequence a) Provision of a device comprising a movable carrier element, with an outer diameter that can be changed on the carrier element
- Cover element and an expandable expansion body is arranged; b) moving the support element to the area to be renovated comprising the main line and the secondary line; c) expanding the cover element until it lies against the inner wall of the main line, the expansion body being arranged in a first recess of the cover element before and / or at least temporarily during the expansion thereof; d) expanding the expansion body, so that the expansion body lies in the expanded state on the wall of the secondary line, so that the
- Cover element and the expansion body together form a formwork; e) positioning a means of transport for a renovation compound on the second recess of the cover element; and f) introducing the curable, viscous renovation compound into the room
- a carrier element is to be understood in particular as an element that can be moved on wheels or chains and has an integrated drive.
- the carrier element can also be moved in the line by means of ropes, cables and the like.
- step a) thus serves for the transport and operation of the elements necessary for the renovation, in particular for the transport of the formwork system cover element and the
- step b) the carrier element with all the necessary elements is now conveyed to the section to be renovated.
- step c) the cover element is transferred from its smaller transport state into its operating state, while at the same time the expansion body remains in the first recess of the cover element.
- a cover element is to be understood to mean an element which can cover the inner wall of the main line in such a way that a defined cavity is formed between the cover element and the space behind it, which is tight to the renovation composition and prevents the same from penetrating into the main line.
- a hollow cylinder is provided, the inner diameter of which is changeable. So the hollow cylinder with reduced inner diameter in one
- Designing the cover element in the form of a formwork collar has the advantage that the cylindrical cover element can be transported very easily in the line and is very securely fixed in the operating state, since it can be aligned independently within the main line and locked in the desired position by the contact pressure, without the need for additional aids.
- An expansion body is to be understood as an element which can be resized
- the expansion body comprises in particular a valve in order to allow expansion with compressed air and a subsequent contracting when the valve is opened.
- the expansion body is according to the invention in the first recess in the
- Step d) can, according to an embodiment of the present invention have already been carried out completely or at least temporarily to step c), but obviously also subsequently to step c).
- cover element and the expansion body form a formwork, which, at least approximately, corresponds to the inner diameter of the lines.
- Remediation compound be pressed into the cavity closed by the formwork. After the renovation compound has hardened, the formwork is removed by contracting the expansion body and removing it from the first recess of the
- Cover element is removed.
- the cover element itself is then contracted so that it can be removed from the main line.
- the invention is based on the surprising finding that a
- the inventive method thus not only reduces the risk of damage to the expansion body, but also accelerates the entire renovation process in parallel due to the shorter pot life and thus shorter
- step e a means of transport for the remedial composition is now positioned on the second recess of the cover element and then the remedial composition is filled into the cavity formed by the formwork in step f).
- a cantilever mounted in at least one spatial axis is included, which moves the expansion body in the radial direction when expanding the cover element, so that the expansion body in the first recess before and / or at least temporarily during Expanding the cover element is arranged.
- At least two, in particular in three spatial axes, is movably mounted and in particular is moved by means of an actuator, preferably by means of an electric motor and / or at least one linear actuator.
- a movement of the boom by means of an actuator for example one
- Electric motor or a hydraulic or pneumatic cylinder is particularly advantageous since the boom is thus provided in the form of a robot arm that can be remotely controlled by a user.
- At least one spatial axis takes place automatically as a function of the expansion of the cover element by means of a control device.
- the expansion movement of the cover element is coupled with a movement of the first arm in at least the radial direction.
- the movement of the cover element is known, measurable and / or controllable, so that an automated adjustment of the position of the expansion body can be easily achieved.
- the expansion body thus optionally remains in the desired position without active user intervention.
- a compressor and / or a compressed air container which is arranged on the carrier element to the
- Expand expansion body using compressed air is expanded.
- the expansion body is a valve
- Cover element is arranged, wherein the at least movably mounted boom in one spatial axis is used to guide a transport line for the compressed air from the carrier element.
- the transport line comprises on the side opposite the compressed air generating element
- Connecting element which can be brought into operative connection with the valve of the expansion body or is to by means of the compressed air generating element
- a valve integrated in the expansion body is preferably used.
- the valve itself can either be pressurized by means of the connecting element or positive pressure in the expansion body can be brought into operative connection by the
- connection element with the valve are drained from the expansion body.
- compressed air is preferably used according to the invention.
- the compressed air is either generated on site or carried in a compressed air tank.
- a boom movable in at least one spatial axis it has also proven to be advantageous that a boom movable in at least one spatial axis
- the connecting element is preferably connected to the transport line for compressed air, which in turn is connected to the compressed air generating element.
- remedial composition from the storage device by pressurizing the interior of the storage device and / or by a pump device via the
- Means of transport is brought into the space behind the formwork.
- the remedial composition must be pressed into the cavity defined by the formwork with an individual minimum pressure. Furthermore, the pressure must not become so high that the formwork can no longer fulfill its sealing function. In order to be able to set such a defined pressure, pump devices such as peristaltic pumps or piston pumps have proven to be particularly suitable. Alternatively, however, it can also be possible to allow the remedial composition to flow into said cavity by means of pressurization within the storage device. It can also be provided according to one embodiment of the present invention that the second recess is closed by means of a closure element, in particular the closure element using the
- Support element and / or a further support element can be opened and closed, the further support element being movably mounted in at least one, in particular two, preferably three, spatial axes.
- Such a closure element is advantageous because it prevents the sealing compound, which has not yet cured, from penetrating through the small but present second recess.
- transport means is connected to the carrier element or the further carrier element, so that the transport means is connected to the carrier element or the further carrier element, so that the transport means is connected to the carrier element or the further carrier element, so that the transport means is connected to the carrier element or the further carrier element, so that the transport means is connected to the carrier element or the further carrier element, so that the transport means is connected to the carrier element or the further carrier element, so that the transport means is connected to the carrier element or the further carrier element, so that the
- Storage container opposite end of the transport means on or at least partially in the second recess can be arranged or arranged in order to introduce the renovation compound into the space between the formwork and the walls of the main and secondary line adjacent to the formwork.
- a camera is provided which is arranged on the carrier element, the camera being arranged adjacent to the cantilever, so that a
- a camera which in the sense of the present invention should also include a system of cameras or image recording devices, adjacent to the boom overcomes these disadvantages.
- a camera according to the invention can be operatively connected to a light source or be in a position to enable the user to better display the objects to be manipulated.
- the position of the boom is automatically regulated by means of an image processing device of the control device and / or the position of the boom is controlled by a user using an input device.
- Image processing device is used to automatically control the valve of the expansion body, in which the control device receives corresponding control signals and controls the at least one arm accordingly. This also applies to opening and closing the closure element of the second recess. Alternatively, it can also be provided that the
- Image processing device for the user by means of superimposed overlays, highlights or auxiliary lines or support elements in the
- the inventive method further comprises the following steps
- step h) further comprises the following steps, in particular in this order, preferably after step h): i) removing the expansion body and the cover element by means of
- Carrier element from the line after curing of the renovation compound is Carrier element from the line after curing of the renovation compound.
- a heating device is provided which is integrated in the cover element and / or at least in the region of the second recess in the transport means and / or with the cover element and / or with the transport means in the region the second recess is in operative connection and heating the means of transport and / or the cover element and the renovation composition for faster curing thereof during the introduction of the renovation composition and / or at least temporarily, in particular completely, during the curing of the
- the heating device is in shape
- a heating hose a radiation source, in particular an infrared heating device and / or a microwave generating device, and / or an electric heater.
- any heat generating device should be any heat generating device.
- the preferred heating devices have proven to be particularly advantageous for heating the renovation compound.
- FIG. 1 a schematic view of a section of a device according to the invention and a formwork system according to the invention in one
- Figure 2 is a schematic view of a section of a device according to the invention and a formwork system according to the invention in one
- Figure 3 is a schematic view of a section of a device according to the invention and a formwork system according to the invention in one
- An exemplary device 1 for an embodiment of a method according to the invention is shown only partially in the figures.
- a chassis and a storage container for the are not shown, for example
- the device 1 shows a transport state of a device according to the invention is shown schematically.
- the device 1 comprises a cover element 3 and an expansion body 5.
- the cover element 3 is designed in the form of a formwork collar and the expansion body 5 in the form of a bladder.
- Expansion body 5 is already partially arranged in a first recess 7.
- step a) The device 1 thus provided according to step a) is now in one
- Step b) to the area to be renovated comprising the main line and the secondary line.
- step c) the cover element 3 is expanded as shown in FIG. 2, while the expansion body 5 remains in the first recess 7 and radially outward and optionally in one or two more Spatial axes corresponding to the change in the position of the first recess 7 is moved.
- the expansion body 5 is then either during the expansion of the
- Cover element 3 or after completion of its expansion also expanded so that a formwork is formed.
- a closure element 9 closes a second recess 11 through which the remedial composition can be introduced into the cavity 13 closed by the expansion body 5 and the cover element 3 in order to remediate the damaged point in the line system.
- the closure element 9 can initially be in the open state, or only be opened directly before filling the renovation compound into the cavity 13.
- a camera 15 and a boom 17 are on a bracket 19 of the
- first device 1 arranged only partially shown first device 1.
- the cover 3 is at a distance from the
- the inner wall of the main line is arranged and the expansion body 5 is already in the first recess 7. This enables the two formwork elements to be easily transported to the section of the line system to be renovated, while both elements can be directly expanded and brought into the operating state without one Connecting the expansion body 5 with other devices or introducing the same into the first recess 7 is necessary.
- FIG. 1 The operating state of the device according to the invention is shown in FIG.
- the cover element 3 is expanded so that it lies firmly against the inner wall of the main line. At the same time, the expanded expansion body 5 in the secondary line lies closely against the inner wall of the secondary line. The cavity 13 ' thus closed is closed by the opening of the
- Heater are used. This can, for example, be arranged directly in the cover element 3 in the region of the second recess 11, or it can be integrated in the transport means for the renovation compound. It may also be the case that the heating device is operatively connected to the cover element or the transport means and is not directly integrated into it.
- the expansion body 5 After curing, the expansion body 5 is contracted and also the
- the outer diameter of the cover element 3 is reduced, so that the formwork formed from these two elements can be removed.
- Remediation compound 13 hardened at this point and the refurbishment of the line was thus successfully completed.
- Embodiments may be essential.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2018/100936 WO2020098847A1 (de) | 2018-11-15 | 2018-11-15 | Verfahren zum sanieren von schadhaften leitungswandungen im bereich des anschlusses einer nebenleitung an eine hauptleitung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3881001A1 true EP3881001A1 (de) | 2021-09-22 |
Family
ID=65443600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18847266.6A Withdrawn EP3881001A1 (de) | 2018-11-15 | 2018-11-15 | Verfahren zum sanieren von schadhaften leitungswandungen im bereich des anschlusses einer nebenleitung an eine hauptleitung |
Country Status (3)
Country | Link |
---|---|
US (1) | US20220010913A1 (de) |
EP (1) | EP3881001A1 (de) |
WO (1) | WO2020098847A1 (de) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3618963A1 (de) | 1986-06-05 | 1987-12-10 | Adolf Prof Dipl Ing Voss | Verfahren und vorrichtung zum verbinden eines abwasserkanales mit einem quer einmuendenden hausanschlusskanal oder dergleichen |
CH676495A5 (de) * | 1988-11-21 | 1991-01-31 | Himmler Kunststoff Tech | |
US5285817A (en) * | 1989-01-12 | 1994-02-15 | Sika Robotics | Remote-controlled insertion of sheathing in inaccessible manifolds and junctions |
DE59400054D1 (de) * | 1994-03-21 | 1996-01-11 | Pmo Engineering Ag | Einrichtung und Verfahren zum Abdichten einer Einmündungsstelle einer Rohrleitung in eine Sammelrohrleitung. |
WO1995027167A1 (de) | 1994-03-31 | 1995-10-12 | Ka-Te System Ag | Vorrichtung, mittel und verfahren zur renovierung von anschlüssen |
US5527133A (en) * | 1994-08-17 | 1996-06-18 | Csillag; Robert | Tool for a sewer robot |
DE19538813A1 (de) * | 1995-10-18 | 1997-04-24 | Kanaltechnik Kunz Gmbh | Verfahren und Vorrichtung zum Reparieren einer nicht begehbaren Rohrleitung |
US6068725A (en) * | 1997-11-26 | 2000-05-30 | Insituform (Netherlands) B.V. | Method of installation of a flexible cured in place lateral seal in an existing main pipeline |
US5969234A (en) * | 1998-02-06 | 1999-10-19 | Umwelttechnik Strobel Gmbh | Apparatus for repairing and/or leakage testing of sewer pipes |
EP1088637A3 (de) * | 1999-10-01 | 2002-12-11 | Peter Zuberbühler | Verfahren und Vorrichtung für das Verarbeiten von Zweikomponentenkunststoff |
DE19960832A1 (de) * | 1999-12-16 | 2001-06-28 | Kanaltechnik Geiger & Kunz Gmb | Verfahren und Gerät zur Sanierung von Schadstellen in Kanälen |
US7717137B2 (en) * | 2004-05-28 | 2010-05-18 | Uwe Harold Bednarzik | Internal pipe repair method and device |
-
2018
- 2018-11-15 US US17/294,452 patent/US20220010913A1/en not_active Abandoned
- 2018-11-15 WO PCT/DE2018/100936 patent/WO2020098847A1/de unknown
- 2018-11-15 EP EP18847266.6A patent/EP3881001A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US20220010913A1 (en) | 2022-01-13 |
WO2020098847A1 (de) | 2020-05-22 |
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