AT512844B1 - Device and method for channel flushing - Google Patents

Abstract

The invention relates to a device for cleaning a channel (1) comprising at least one rinsing and suction unit (2) and a rotatably mounted hose reel (3) connected or connectable thereto for providing a rinsing hose (4) which can be inserted into the channel (1) preferably for propulsion of the flushing hose (4) running channel cleaning nozzle (5), wherein at least one propulsion unit (6) for positioning the flushing hose (4) in the channel (1) is provided, and a method for cleaning a channel with such a device.

Description

as a psstetot AT512 844B1 2014-06-15

description

DEVICE AND METHOD FOR CHANNEL RINSING

The invention relates to a device for cleaning a channel comprising at least one flushing and suction unit and an associated or connectable rotatably mounted hose reel to provide a rinsing hose insertable into the channel with a preferably for propulsion of the flushing hose channel cleaning nozzle, wherein at least one propulsion unit is provided for positioning the flushing hose in the channel, and a method for cleaning a channel with such a device.

Devices for cleaning sewage pipes or channels or drainage pipes are known from the prior art. For this purpose, sewer cleaning devices are used, which have a flushing hose with a sewer cleaning nozzle. The flushing hose, which is provided on a hose reel, is introduced into the channel via a manhole and pressurized with rinsing water. The repulsive force of the jet of water directed through the specially shaped sewer cleaning nozzle advances the purge hose while simultaneously dissolving contaminants. Subsequently, the flushing hose is withdrawn, whereby the impurities are backwashed and removed in the form of dirty water from the channel section. Such devices or methods are known, for example, from EP 2 151 529 A2.

The hose jacking takes place in the known devices through the sewer cleaning nozzle, the possible propulsion length is dependent on the gradient, the nature of the pipe surface, the pipe diameter, the flushing pressure at the nozzle, the nozzle texture, the amount of water, and the diameter and weight of the flushing hose ,

In optimal conditions thus sputtering lengths of 250 to 500 m can be achieved. For longer channels, a second hose reel is set up at approx. 500 m. In this procedure, the flushing hose of the first 500 m is no longer moved. The disadvantage of this concept is the supply and removal and the installation of the large heavy hose reel. The operation of this hose reel is carried out on site with the appropriate personnel. The necessary space for the installation of the hose reel and the operating personnel is rare, especially in railway tunnels.

The document US 5,139,751 A shows a device for cleaning a channel, which consists essentially of a rolled up on a driven hose reel rinsing hose, a Spülschlauchvortriebseinrichtung, a rinsing liquid container, a compressor or a pump and a sensor for registering the stopping of the hose tip due to a Obstacle exists.

From US 5,572,766 A a flushing device for channels is known, which can be controlled by radio from a central switching point.

Other devices for channel cleaning are known from the documents CN200958244 Y and JP 2011026830 A.

A problem of such sewer cleaning devices arises in the flushing of drainage lines in railway systems, since the flushing should not affect the current train operation, but at the same time, especially in underpasses, multi-track routes or in tunnels only little space next to the tracks is available to the Place devices.

These requirements for the space required for railway systems can not be met in the known from the prior art devices, since these are usually standardized vehicles as they are used for conventional sewer flushing use. These are, in particular, truck components that are loaded onto railway wagons or mounted on railway wagons. It is also possible to use a 2-way truck. In all these systems, the flush is rail-bound, this will 1/18

§StBi? Id ^ 5d »S feten camouflaged AT512 844B1 2014-06-15 blocks the track on which the sewer cleaning device is located. In the case of two or more track sections, where there is drainage between the tracks or where there are slight track distances, it may be necessary to also block the neighboring track. This type of sewer cleaning massively reduces train traffic.

Another significant disadvantage of the devices of the prior art is that the maximum length of the channel to be cleaned usually 250 - 500 m may not exceed. Especially on winding roads not even this length is guaranteed. This restriction is due to the fact that the flushing hose is driven forward only by the steered jet of water. The longer the flushing hose or the more winding the route, the more difficult is this propulsion and the higher the propulsive force has to be in order to drive the flushing hose further. Due to this limited Spüllänge results in the problem that the flushing hose must be removed approximately every 250 to 500 m and reused.

Another problem that arises in particular in tunnels, is that the introduction of the flushing hose must be made in the manhole or in the channel by workers on site. This is extremely dangerous, especially during operation in tunnels.

Finally, it has been found in practice that the rinsing hose is usually provided rolled up on a rotatably mounted hose reel connected to the rinsing and suction unit is available, withdrawn upon impact of the sewer cleaning nozzle on an impurity in the channel only by manual interaction can be.

To solve these and other technical problems, the invention provides that the propulsion unit is installed in a stationary manhole or mobile in a manhole shaft installed.

According to the invention it is further provided that the device may consist of several modules, in particular from the rinsing and suction unit, the hose reel, a boom for introducing the flushing hose into the channel, said propulsion unit and a module for Spülwasserwiederaufbereitung. Such a modular system, which is called "modular drainage maintenance for railway facilities", reduces the restriction of train traffic to a minimum. Instead of using standardized vehicles and loading them on railway wagons, the sewer cleaning device consists of individual modules that are provided on site. The restriction of train traffic is thereby reduced to a minimum. The actual sewer cleaning process is carried out while the train is running.

Due to the propulsion unit according to the invention, the length of the channel to be flushed is not limited in practice. In particular, sputtering lengths of up to 1000 m are possible. The possible advance length of the hose depends only on the number of propulsion units.

The components of the invention can be designed so that they can be manipulated with all the lifting devices located on the market. If required, they can be set up separately and connected with network cables or radio or other communication equipment. Only the Schlauchvortriebseinheiten communicate with the hose reel on the hose as will be described in more detail below.

According to the invention it can be provided that the hose reel is designed for automatic reeling and / or unwinding of the flushing hose. This eliminates the need for manual on-site interaction. The hose reel can be designed according to the invention as a unit with the rinsing and suction unit or as a separate module.

In order to reduce the requirement of manual manipulation can be inventively provided that at least one remote-controlled boom is provided, which is set up for the introduction of the flushing hose in the channel and / or for manipulation of a possibly provided manhole cover of the manhole. This allows the entire system to be remotely controlled from a protected location and eliminates the need for manual interaction.

According to the invention may further be provided that a device is provided for Spülwasserwiederaufbereitung.

According to the invention, the hose driving is taken over, depending on the system, but at least every 500 m of a mobile or stationary propulsion unit used in the shaft. This allows the hose to be inserted indefinitely in the channel. The channel length to be purged from a stand depends only on the pressure losses due to the hose length.

The control with respect to propulsion speed between the individual propulsion units and the hose reel is taken over by the flushing hose. This ensures a fully automatic use of the system. The operating personnel can stay in the protected area. An operational restriction during flushing is not necessary.

Through the use of this system eliminates the limitations of the Spüllänge mentioned, the transport of the mobile Schlauchvortriebseinheit can be performed by the staff themselves due to the low weight without the use of equipment. If necessary, the propulsion unit can be installed as a stationary system directly in the shaft. The flushing can be done in this case without access to the shaft. The operation can be carried out in particular from a protected stand. The rinsing process takes place without disturbing the operating procedures. The propulsion speed of the hose can be significantly increased.

According to the invention may be provided in particular that all components, in particular the rinsing and suction unit, the hose reel, the boom, the propulsion unit and a Spülwasseraufbereitung are interconnected by network cable, radio or other communication means, the operation preferably from a protected stand out.

The propulsion unit may comprise at least one drivable by a drive motor for propelling and / or retraction of the purge hose executed Schlauchvortriebsrad. To measure the actual speed of the propulsion or return of the flushing hose, a measuring wheel can be provided. According to the invention it can be provided that chain drives are provided which are pressed against each other and thus drive the hose in the desired direction.

For automatic positioning of the flushing hose can be provided with a loop lifting cylinder connectable lifting strap.

The device may further comprise according to the invention his suspension device, which serves for positioning of the device in the manhole.

For positioning the Schlauchvortriebsrades and / or the measuring wheel and for adjusting the contact pressure, at least one thrust cylinder can be provided. Furthermore, a sensor may be provided for detecting the state of stress of the flushing hose. This sensor can in particular detect the position of the lifting loop.

Furthermore, it can be provided according to the invention that at least one lifting strap receiving in a horizontal plane rotatably mounted on a suspension lifting strap carrier is provided. It can be inventively provided that at least one sensor for detecting the deflection of at least one lifting strap carrier is set up.

It may further be provided according to the invention that the flushing hose is provided in the region of the sewer cleaning nozzle with a camera for receiving the channel interior. To power the camera and / or communication with the camera, the flushing hose can be made electrically conductive. In particular, electrically conductive wires or strands can be introduced into the material of the flushing hose. Furthermore extends 3/18

The invention relates to a method for cleaning a channel with a rinsing and suction unit, a rotatably mounted hose reel, wherein a provided with a sewer cleaning nozzle flushing hose inserted into the channel and with under Pressurized water is acted upon, so that the flushing hose is driven forward by the resulting water jet, wherein at insufficient propulsion of the flushing hose additional propulsion is generated by at least one propulsion unit, wherein continuously the voltage state of the flushing hose is monitored by at least one sensor, and upon detection of a decreasing voltage state of the propulsion of the purge hose is reduced or turned off, as well as upon detection of an increasing voltage state, the propulsion of the purge hose is activated again and a plurality of sequentially arranged propulsion units are used, upon detection of a falling voltage Starting state of the flushing hose starting from that of the sewer cleaning nozzle closest propulsion unit sequentially turn off the propulsion, and activate the propulsion again in detection of an increasing voltage state in reverse order.

The inventive method may further provide that opened by a remote-controlled boom a manhole cover of a manhole and the flushing hose is inserted into the channel. Furthermore, the method according to the invention can provide that the flushing hose is automatically unrolled or rolled up by the hose reel.

Further features of the invention will become apparent from the description, the claims and the figures.

In consequence, the invention will be explained in more detail with reference to inventive embodiments. In the drawings: Fig. 1 shows a schematic cross-section through a device according to the invention for sewer cleaning; Fig. 2-3 shows a schematic cross section through a device according to the invention Kanalrei tion, which is inserted into a manhole; Fig. 4-5 is a schematic plan view of an inserted into a manhole shaft channel cleaning device according to the invention in operation; 6a-6h are schematic cross-sectional views of various steps of the method according to the invention; Fig. 1 shows a schematic cross section through a channel cleaning device according to the invention for cleaning a channel 1 in a manhole 10. In this schematic figure, several channels 1 are shown, which may be drains, sewers or the like. Furthermore, a suction line 20 is indicated. The manhole 10 is closed with a manhole cover 8. In addition to the manhole, the flushing and suction unit 2 is placed, which has a boom 7, which is telescopically displaceable and the lower arm is rotatably mounted. On the boom 7, a hose reel 3 is rotatably mounted, and on this hose reel a flushing hose 4 is rolled up.

The flushing hose has a sewer cleaning nozzle 5. After opening the manhole cover 8, the flushing hose 4 can be introduced into each of the indicated channels 1 with the boom.

Fig. 2 shows a section across the manhole 10 with inserted propulsion unit 6. The channel 1 is located at the bottom of the manhole 10. The propulsion unit 6 has a suspension device 15. This suspension device is used for positioning the propulsion unit and can be connected to the be adapted to different manhole shapes and manhole sizes. On the suspension device 15 thrust cylinders 16 are mounted, which are connected to a drive motor 17 and a propulsion measuring device 21. The thrust cylinders bring the Schlauchvortriebsrad 11 and the measuring wheel 12 in the respective intended position.

These wheels 11 and 12 are rotatable according to the indicated arrows. Furthermore, by the thrust cylinder 16 of the contact pressure of the wheels 11, 12 to the purge hose 4 4/18

Merreäsissts psfesiawt AT512 844B1 2014-06-15 controlled. The drive motor 17 takes over the hose supply and return.

The propulsion measuring device 21 permanently compares the speed of the hose advance and return. The number of revolutions of the Schlauchvortriebsrades 11 is compared with the number of revolutions of the measuring wheel 12. With a corresponding deviation, the speed of the hose advance is increased accordingly or reduced or turned off. The measuring wheel 12 monitors the speed of the hose movement in relation to the number of revolutions of the Schlauchvortriebsrades 11 and thereby prevents slippage of Schlauchvortriebsrades on the purge hose 4. This prevents damage.

The flushing hose 4 is a high pressure flushing hose having a sewer cleaning nozzle (not shown). Furthermore, a loop lifting cylinder 13 is provided, which has on its underside a lifting loop. The lifting loop 14 brings the flushing hose into the position after passing through the flushing nozzle, so that the flushing hose 4 can be taken over by the hose driving wheel 11 and the measuring wheel 12. This position is shown in FIG.

In Fig. 3, the flushing hose 4 is brought by the lifting loop 14 in the position that the hose jacking through the Schlauchvortriebsrad 11 and the measuring wheel 12 can be taken. The push cylinder 16 are extended accordingly, and the loop lifting cylinder 13 is located at its uppermost position.

Fig. 4 and Fig. 5 show a plan view of the embodiment of the channel cleaning device according to the invention. Shown is the manhole 10, through which a channel 1 extends. In the manhole 10, the propulsion unit 6 is suspended by the suspension device 15. Visible again is the Schlauchvortriebsrad 11 and the measuring wheel 12, and the drive motor 17 and the Vortriebsmessvorrichtung 21. The push cylinder 16 provide for the adjustment of the position of the two wheels 11, 12. Furthermore, it can be seen from this illustration that at the suspension 15 sensors 18, the exact embodiments, however, is not the subject of the invention. At the suspension lifting strap carrier 19 are hinged, at the ends of loop lifting cylinder 13 and the actual lifting loops 14 are. The view shown in Fig. 4 shows the position of the two lifting strap carrier 19 in operation when no blockages occur. The flushing hose 4 is currently in the channel 1.

In Fig. 5 of the flushing hose meets a blockage and bends for this reason. By holding the flushing hose 4 in the lifting loop 14 of the lifting strap carrier 19 is deflected from its position and activates one of the sensors 18. The flushing hose 4 has deviated from its linear orientation. As a result, the lifting strap carrier 19 is pressed to the left and the sensor 18 is activated, as a result of which the speed of the hose advance can be reduced or switched off.

FIGS. 6a-6h show different operating states of the device according to the invention in a longer channel which has at least two duct shafts.

Fig. 6a shows the hose reel 3, the flushing hose 4 which is inserted into the channel 1. At the position A, a deflection roller 22 is provided with pressure measurement.

At the positions B and C respectively channel shafts 10 are provided with propulsion units 6 inserted therein. The distance between the manholes should not exceed 500 m. Fig. 6a shows the operating state of the tube propulsion. From the position A position B, the propulsion of the hose through the sewer cleaning nozzle takes place from the position B, the propulsion takes over the propulsion unit 6, and from the position C assumes the propulsion of the propulsion unit 6 at the position C. The hose is in tension and the Hose reel unwinds the hose in coordination with the propulsion.

In Fig. 6b, the channel cleaning nozzle 5 encounters a blockage 23. The tube deviates from the linear guide, the lifting loop with the lifting strap carrier at the position C is pushed to the side. Hose propulsion of propulsion unit 6 at position C is switched off.

In Fig. 6c, the same now takes place at the position B: The hose deviates from the linear guide, thereby the lifting loop is pressed with the lifting strap carrier at the position B to the side. It comes to speed reduction or to shutdown the hose jacking 6 at the position B. Finally, the fault continues to the position A. It comes at position A to reduce speed and to shut off the hose reel. This is shown in Fig. 6d.

In Fig. 6e, the blockage is now eliminated. By the propulsion of the nozzle 5, the hose tightens again and the propulsion unit 6 at the position C goes into operation, Fig. 6f shows the state that is set when the propulsion unit 6 in operation at position B, and Fig. 6g shows Finally, the normal state, although at the position A, the hose is re-energized.

Fig. 6h shows another operating state, namely that of the hose return in the event that the hose reel can not take the retracted hose, for example, because it is switched off or defective. In this case, the propulsion unit 6 first detects the lack of tension at point B and shuts down.

This is done at the point C (no longer drawn). The process thus takes place in the reverse order as if the hose meets a blockage.

The present invention is not limited to the use of the channel cleaning device according to the invention for cleaning channels in the vicinity of track systems, but can be used for the purification of any liquid lines. In particular, the device is not limited to the cleaning of water and sewers. 6.18

AT512 844B1 2014-06-15

REFERENCE LIST 1 channel 2 flushing and suction unit 3 hose reel 4 flushing hose 5 sewer cleaning nozzle 6 propulsion unit 7 boom 8 manhole cover 10 manhole 11 hose propulsion 12 measuring wheel 13 loop lifting cylinder 14 lifting loop 15 hanging device 16 push cylinder 17 drive motor 18 sensor 19 lifting strap carrier 20 suction line 21 driving measuring device 22 deflection roller with pressure measurement 23 blockage 7.18

Claims (18)

Device for cleaning a channel (1) comprising at least one rinsing and suction unit (2) and a rotatably mounted hose reel (3) connected thereto or connectable to provide a passage in the channel (1). 1) insertable flushing hose (4) with a preferably for propelling the flushing hose (4) running channel cleaning nozzle (5), wherein at least one propulsion unit (6) for positioning the flushing hose (4) in the channel (1) is provided, characterized in that the propulsion unit (6) is stationarily installed in a manhole (10) or mobile in a manhole (10) is installed mountable. 2. Apparatus according to claim 1, characterized in that the hose reel (3) for automatic reeling and unwinding of the flushing hose (4) is executed. 3. Device according to one of claims 1 to 2, characterized in that the hose reel (3) is designed as a unit with the rinsing and suction unit (2) or as a separate module. 4. Device according to one of claims 1 to 3, characterized in that at least one remote-controlled boom (7) is provided, for introducing the flushing hose (4) in the channel (1) and / or for manipulating a manhole cover (8) Manhole (10) is set up. 5. Device according to one of claims 1 to 4, characterized in that a device is provided for Spülwasserwiederaufbereitung. 6. Device according to one of claims 1 to 5, characterized in that all components, in particular the rinsing and suction unit (2), the hose reel (3), the boom (7), the propulsion unit (6) and the rinse water treatment with each other Network cable, radio or other communication means are connectable, the operation is preferably carried out by a protected stand. 7. Device according to one of claims 1 to 6, characterized in that the propulsion unit (6) comprises at least one of a drive motor (17) drivable, for propelling and / or retraction of the flushing hose (4) executed Schlauchvortriebsrad (11). 8. Device according to one of claims 1 to 7, characterized in that for measuring the actual speed of the propulsion or return of the flushing hose (4) a measuring wheel (12) is provided. 9. Device according to one of claims 1 to 8, characterized in that for automatic positioning of the flushing hose (4) with a loop lifting cylinder (13) connectable lifting strap (14) is provided. 10. Device according to one of claims 1 to 9, characterized in that the device comprises a suspension device (15), which serves for positioning of the device in the channel shaft (10). 11. Device according to one of claims 7 to 10, characterized in that for positioning the Schlauchvortriebsrades (11) and / or the measuring wheel (12) and for adjusting the contact pressure at least one thrust cylinder (16) is provided. 12. Device according to one of claims 1 to 11, characterized in that a sensor (18) is provided, which is designed for detecting the state of tension of the flushing hose (4). 13. The apparatus according to claim 12, characterized in that the sensor (18) detects the position of the lifting loop (14). 18.8 AT512 844B1 2014-06-15 14. Device according to one of claims 9 to 13, characterized in that at least one lifting strap (14) receiving, in a horizontal plane rotatably mounted on the suspension device (15) lifting strap carrier (19) is provided. 15. The device according to claim 14, characterized in that at least one sensor (18) is arranged for detecting the deflection of at least one lifting strap carrier (19). 16. A method for cleaning a channel (1) with a rinsing and suction unit (2), a rotatably mounted hose reel (3), wherein a provided with a sewer cleaning nozzle (5) rinsing hose (4) inserted into the channel (1) and with pressurized water is applied, so that the flushing hose (4) is propelled by the resulting water jet, wherein a. if sufficient propulsion of the flushing hose (4) additional propulsion by at least one propulsion unit (6) is generated; b. continuously monitoring the state of tension of the flushing hose (4) by at least one sensor (18); c. and upon detection of a falling voltage state, the propulsion of the flushing hose (4) is reduced or switched off; d. as well as upon detection of a rising state of tension, the propulsion of the flushing hose (4) is activated again, characterized in that for propelling the flushing hose (4) a plurality of sequentially arranged propulsion units (6) are provided, which on detection of a falling voltage state of the flushing hose (4) starting from one of the sewer cleaning nozzle (5) closest propulsion unit (6) turn off the propulsion in succession, and activate the propulsion again in detection of an increasing voltage state in reverse order. 17. The method according to claim 16, characterized in that by a remote-controlled boom (7) a manhole cover (8) of a manhole (10) open and the flushing hose (4) is inserted into the channel (1). 18. The method according to any one of claims 16 or 17, characterized in that by the hose reel (3) of the flushing hose (4) automatically unrolled or rolled up is 9 sheet drawings 9/18