EP2281639B1 - Device for cleaning a gas or liquid transporting conduit - Google Patents

Device for cleaning a gas or liquid transporting conduit Download PDF

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Publication number
EP2281639B1
EP2281639B1 EP20090405132 EP09405132A EP2281639B1 EP 2281639 B1 EP2281639 B1 EP 2281639B1 EP 20090405132 EP20090405132 EP 20090405132 EP 09405132 A EP09405132 A EP 09405132A EP 2281639 B1 EP2281639 B1 EP 2281639B1
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EP
European Patent Office
Prior art keywords
conduit
abrasive
frame
shaft
wall
Prior art date
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Not-in-force
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EP20090405132
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German (de)
French (fr)
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EP2281639A1 (en
Inventor
Franz Tschümperlin
Manuel Züger
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Individual
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Individual
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Priority to EP20090405132 priority Critical patent/EP2281639B1/en
Publication of EP2281639A1 publication Critical patent/EP2281639A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0433—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided exclusively with fluid jets as cleaning tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/047—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
    • E03B3/08—Obtaining and confining water by means of wells
    • E03B3/15—Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers

Definitions

  • the invention relates to a device for cleaning a gas or liquid-carrying line by removing dirt, corrosion or other ablated from the inner wall of the conduit layers, by about vertical loading of the inner wall of the conduit with a granular, liquid or gaseous blasting agent, consisting of a along the inner wall of the conduit by means of a frame-guided blasting unit, which at one end of the traction means towed or lowered frame the blasting agent is supplied in a pressure line, wherein the attached to the frame beam aggregate at least one approximately perpendicular to the inner wall of the line directed to a has approximately parallel to the axis axis extending driven jet pipe, and the blasting agent at a the cable end attachment end opposite the frame at a uniform distance from the inner wall, respectively.
  • DE 40 17 368 A1 and DE 196 26 590 A1 provide a device for cleaning the inner surfaces of pipes, such as well pipes in well shafts with at least one concentrically provided on a longitudinally movable in the tube guide carriage rotation nozzle assembly with radially against the inner wall, respectively. walls directed nozzles.
  • the guide carriage consists of a centering linkage which is introduced against rotation of the rotating nozzle assembly in the pipe to be cleaned.
  • the guide carriage has two similar, arranged on a central support member one behind the other frame parts, which are each formed by at least three longer than the radius of the tube arranged lever arms and adjustable by a bearing ring or a sleeve on the central support member.
  • the rotary drive of the rotating nozzle assembly located between the frame parts is at the supporting frame protruding end, at which the blasting agent carrying support tube is arranged, wherein an electric motor of the rotary drive to the stationary, connected to a frame part sleeve and a driven sprocket are attached to the support tube.
  • the pre-published US B1-6'390'105 relates to a device for pipe cleaning devices, which are moved in the interior along a pipe and the inner Clean the surface of the pipe.
  • Such pipe cleaning devices consist of several juxtaposed individual parts and components and are aligned centrally and along a pipe by laterally projecting Abst Reifenorgane.
  • the object is achieved in that the jet pipe is attached to one of the supporting elements of the frame connecting and the blasting medium having carrier, which is designed as a rotating shaft whose shaft ends are each rotatably mounted in bearing blocks on which the support elements are arranged and that a fixed to the frame electric motor of the rotary drive, which forms a Antriebsvorgelege with a sprocket attached to the shaft, between a jet pipe and a shaft end of the shaft is arranged.
  • Fig. 1 shows a device 1 for cleaning an inner wall 5 of a line 3, as used for example in hydropower plants in pressure lines.
  • the water flowing in the pressure lines forms deposits, dirt and corrosion on the inner walls.
  • the pipelines are usually provided with an interior coating which no longer provides the necessary protection and no longer meets today's standards and regulations, so that they must be eliminated ,
  • the Fig. 1 and 2 illustrate a device 1 for cleaning the inner wall 5 of a gas or liquid-carrying line 3 by an approximately vertical loading of the inner wall 5 with a granular, liquid or gaseous blasting agent.
  • the device 1 consists of a along the inner wall 5 of the line. 3 attached to a frame 4 blasting unit 2, the one end of a tow rope 6 or the like. Drag or lowerable frame 4, the blasting agent is supplied in a pressure line 7.
  • the guided in the longitudinal central axis of the line 3 jet unit 2 has a plurality of a rotating shaft 8 directed perpendicularly against the inner wall 5 jet pipes 9, through which the blasting agent is discharged at high pressure against the inner wall 5 of the line 3.
  • the incident on the inner wall 5 beam acts on the surface of the inner wall of the line 3 abrasive and dissolves the dirt resp. Foreign substances from the inner wall 5. It can be distributed in relation to a rotation circle and distributed in the direction of the axis of rotation 10 offset to the shaft 8 a plurality of jet pipes 9.
  • the present embodiment shows two offset by 180 ° on the axis of rotation 10 in a circular plane beam tubes 9, which are screwed or plugged into the shaft 8.
  • the blasting medium is fed to the jet tubes 9 via a blasting line 11 which is guided in the axis of rotation 10 of the shaft 8 and opens at the conveying end 12 into radially outwardly directed distribution lines 13 connected to the blasting tubes 9 so that the blasting tubes 9 can be supplied with the blasting medium.
  • the jet pipe outlet n of the shaft 8 is to be closed with a plug, for example.
  • the jet unit 2 is supported by the ends of the shaft 8 in two spaced in the guide direction spaced bearing blocks 14, 15, wherein the bearing blocks 14, 15 on each of the inner wall 5 of the line 3 about perpendicularly pending support member 16, 17, the with the rotating shaft 8 form the frame 4, are attached.
  • the support elements 16, 17 have on the surface of the inner wall 5 distributed at least three support legs 18, 19, at the free ends rollers 20 or skids are mounted. Of course, the support legs 18, 19 are adjusted in terms of length, so that the device 1 is suitable for use in different sizes line cross sections.
  • the rotary drive of the jet unit 2 formed essentially of shaft 8 and jet pipes 9 consists of an electric motor 21 which is fixedly connected to the frame 4, and a revolving chain 22 or a belt, which is a seated on the shaft 8 sprocket 23, respectively.
  • Belt pulley drives For attachment to the frame of the electric motor 21, a support 24 is suitable, on which the electric motor 21 is screwed tight.
  • the blasting unit 2, the blasting agent is supplied to one of the traction cable attachment end 25 opposite end of the frame and the jet unit 2 and associated therewith the rotary drive 26, consisting of the connected to the frame 4 electric motor 21, the chain 22 and the seated on the shaft 8 sprocket 23rd is viewed in line direction between the frame ends resp. the bearing blocks 14, 15 respectively.
  • the rotational speed of the rotary drive 26 may be to adapt to the prevailing circumstances resp. the tenacity to remove the foreign matter through a controller, not shown, to be changed.
  • the connection of the jet unit 2 to a blasting agent source is effected by a flexible pressure line 7, which by means of coupling 28 with the rotating shaft 8, respectively. the pressure line 7 is connected.
  • the flexible pressure line 27 can also serve as traction means of the device 1 in a line guide direction.
  • the device-side coupling part of the clutch 28 is secured against rotation on the frame 4.
  • rolling bearings 43, 53 for example, tapered roller bearings, preferably smaller diameter.
  • the rolling bearings 43, 53 are each formed by a force acting on the inner ring clamping nut 44 against a formed by the smaller diameter of the shaft end 41, 42 Shoulder 45 pressed.
  • the rolling bearings 43, 53 respectively axially positioned on the outer ring and adjusted by means of the bearing shell 48 axially passing through adjusting screws 49 of a setting 52. biased.
  • the half-shells 46, 47 mounted on the pre-mounted on the shaft end 41, 42 bearings 43, 53 on the one outer ring of a rolling bearing 43, 53 and screwed along the axis of rotation 10 to the bearing shell 48 so that the pairs arranged opposite to each other Rolling 43, 53 on the outer rings mutually adjustable resp. can be prestressed.
  • a simple replaceable sprocket 23 which consists of two wheel halves and is releasably connected to a seated on the shaft 8 hub 50.
  • the drive chain 22 can by separating resp. Joining two chain links easily replaced or repaired.
  • defects in the device 1 can be corrected within the line 3, provided that the cross section of the line 3 allows the access of the service personnel to the device 1.
  • the design allows easy handling and maintenance with the device 1 in lines 3 with different cross-sections and allows the elimination of a defect in the device 1 without dissolution of the installation installation.
  • the device 1 is for cleaning a line 3 along the inner wall 5, respectively.
  • the traction cable 6 connects the winch to the device 1 by means of a fastening device 30 provided on the frame end, for example a hook or an eyelet.
  • the device 1 is used so that the blasting agent is supplied from below from a catch basin of the device 1 and the pull cable 6 is attached to the opposite end of the frame 4, so that the removal of foreign substances from below supplied blasting agent on the inner wall 5 ab- resp. flow back and is absorbed by the catch basin.
  • the blasting agent provided with a high proportion of water and its load can be processed in a controlled manner and possibly disposed of.
  • the device 1 is particularly suitable for a procedural application when it is connected in a blasting medium circuit in which the blasting agent is supplied from a connected to the line 3 catch basin of the device 1 and returned along the inner wall 5 of the line 3 in the catch basin.
  • the return of the blasting agent in the catch basin can be done by a line gradient or a pump.

Description

Die Erfindung betrifft eine Einrichtung zur Reinigung einer Gas oder Flüssigkeit führenden Leitung durch Entfernen von Schmutz, Korrosion oder anderen von der Innenwand der Leitung abzutragenden Schichten, durch etwa senkrechte Beaufschlagung der Innenwand der Leitung mit einem körnigen, flüssigen oder gasförmigen Strahlmittel, bestehend aus einem entlang der Innenwand der Leitung mittels Gestell geführten Strahlaggregat, welchem an einem Ende des an einem Zugmittel schlepp- oder absenkbaren Gestell das Strahlmittel in einer Druckleitung zugeführt wird, wobei das an dem Gestell befestigte Strahlaggregat wenigstens ein etwa senkrecht auf die Innenwand der Leitung gerichtetes, um eine etwa parallel zur Leitung verlaufende Achse rotierend angetriebenes Strahlrohr aufweist, und das Strahlmittel an einem dem Zugseil-Befestigungsende gegenüberliegenden Gestellende dem mit gleichmässigem Abstand von der Innenwand resp. mittig der Leitung durch das Gestell geführten Strahlaggregat zugeführt und letzteres sowie ein diesem zugeordneter Rotationsantrieb in Leitungsführungsrichtung betrachtet zwischen den durch zwei senkrecht zur Innenwand der Leitung abstehende Stützelemente gebildeten Gestellenden angeordnet sind und mit dem Gestell ein dem Strahlaggregat zugeordneter Rotationsantrieb verbunden ist.The invention relates to a device for cleaning a gas or liquid-carrying line by removing dirt, corrosion or other ablated from the inner wall of the conduit layers, by about vertical loading of the inner wall of the conduit with a granular, liquid or gaseous blasting agent, consisting of a along the inner wall of the conduit by means of a frame-guided blasting unit, which at one end of the traction means towed or lowered frame the blasting agent is supplied in a pressure line, wherein the attached to the frame beam aggregate at least one approximately perpendicular to the inner wall of the line directed to a has approximately parallel to the axis axis extending driven jet pipe, and the blasting agent at a the cable end attachment end opposite the frame at a uniform distance from the inner wall, respectively. centrally fed to the line guided by the frame beam unit and the latter and a rotary drive associated therewith viewed in the direction of cable guide between the two perpendicular to the inner wall of the line projecting support members formed frame ends are arranged and connected to the frame a the aggregate unit associated rotary drive.

Derartige Einrichtungen werden zur Reinigung von Kraftwerk-Brunnen- oder anderen Anlagen benutzt.Such facilities are used to clean power plant wells or others Used plants.

Die vorveröffentlichten DE 40 17 367 A1 , DE 40 17 368 A1 und DE 196 26 590 A1 vermitteln eine Vorrichtung zur Reinigung der Innenflächen von Rohren, wie Brunnenrohre in Brunnenschächten mit mindestens einer konzentrisch an einem in dem Rohr längsbewegbaren Führungsschlitten vorgesehenen Rotationsdüsenanordnung mit radial gegen die Innenwand resp. -wände gerichteten Düsen. Der Führungsschlitten besteht aus einem Zentrierungsgestänge, das gegenüber der Rotationsdüsenanordnung verdrehsicher in das zu reinigende Rohr eingeführt ist. Der Führungsschlitten weist zwei gleichartige, an einem zentralen Tragelement hintereinander angeordnete Gestellteile auf, die durch jeweils mindestens drei länger als der Radius des Rohres angeordnete Hebelarme ausgebildet und durch einen Lagerring oder eine Hülse an dem zentralen Tragelement verstellbar befestigt sind. Innerhalb des Tragelementes befindet sich ein in den Gestellteilen drehbar gelagertes Tragrohr, an dem die Rotationsdüsenanordnung befestigt ist und dem an einem Ende das Strahlmittel über einen Hochdruckschlauch, der gleichzeitig als Zugmittel dient, zugeführt wird. Der Drehantrieb der sich zwischen den Gestellteilen befindenden Rotationsdüsenanordnung ist an dem das Traggestell überstehenden Ende resp, an dem das Strahlmittel führenden Tragrohr angeordnet, wobei ein Elektromotor des Drehantriebes an der stationären, mit einem Gestellteil verbundenen Hülse und ein angetriebenes Kettenrad an dem Tragrohr befestigt sind.The pre-published DE 40 17 367 A1 . DE 40 17 368 A1 and DE 196 26 590 A1 provide a device for cleaning the inner surfaces of pipes, such as well pipes in well shafts with at least one concentrically provided on a longitudinally movable in the tube guide carriage rotation nozzle assembly with radially against the inner wall, respectively. walls directed nozzles. The guide carriage consists of a centering linkage which is introduced against rotation of the rotating nozzle assembly in the pipe to be cleaned. The guide carriage has two similar, arranged on a central support member one behind the other frame parts, which are each formed by at least three longer than the radius of the tube arranged lever arms and adjustable by a bearing ring or a sleeve on the central support member. Within the support member is a rotatably mounted in the frame parts support tube to which the rotary nozzle assembly is attached and the blasting agent at one end via a high-pressure hose, which also serves as traction means, is supplied. The rotary drive of the rotating nozzle assembly located between the frame parts is at the supporting frame protruding end, at which the blasting agent carrying support tube is arranged, wherein an electric motor of the rotary drive to the stationary, connected to a frame part sleeve and a driven sprocket are attached to the support tube.

Die zur Ausbildung dieser Vorrichtung benötigten Konstruktionsteile und Komponenten machen einen relativ hohen Aufwand an Material und Kosten notwendig und ergeben ein hohes Gewicht, sodass sich der Einsatz dieses Gerätes als umständlich erweist.The design parts and components required for the construction of this device make a relatively high expenditure on material and costs necessary and result in a high weight, so that the use of this device proves to be cumbersome.

Die vorveröffentlichte US-B1-6'390'105 betrifft eine Vorrichtung für Rohrreinigungseinrichtungen, die im Innenraum entlang eines Rohres bewegt werden und die innere Oberfläche des Rohres reinigen. Solche Rohrreinigungseinrichtungen bestehen aus mehreren aneinandergereihten Einzelteilen und Komponenten und sind mittig und entlang eines Rohres durch seitlich abstehende Abstützorgane ausgerichtet.The pre-published US B1-6'390'105 relates to a device for pipe cleaning devices, which are moved in the interior along a pipe and the inner Clean the surface of the pipe. Such pipe cleaning devices consist of several juxtaposed individual parts and components and are aligned centrally and along a pipe by laterally projecting Abstützorgane.

Es stellt sich deshalb an die Erfindung die Aufgabe, eine Einrichtung der eingangs beschriebenen Art zu schaffen, die durch eine kompakte Bauweise der verwendeten Bauteile und Komponenten auffällt und für ein einfaches Handling bei der Benutzung ein entsprechend leichtes Gewicht aufweist, so dass sie sich als umweltgerecht optimierte sowie unterhaltsfreundliche Anwendung eignet.It is therefore an object of the invention to provide a device of the type described above, which stands out by a compact design of the components and components used and has a correspondingly light weight for easy handling during use, so that they are environmentally friendly optimized and easy to use application.

Erfindungsgemäss wird die Aufgabe dadurch gelöst, dass das Strahlrohr an einem aus einem die Stützelemente des Gestells verbindenden und die Strahlmittelleitung aufweisenden Träger befestigt ist, der als rotierende Welle ausgebildet ist, deren Wellenenden jeweils in Lagerböcken drehbar gelagert sind, an welchen die Stützelemente angeordnet sind, und dass ein an dem Gestell befestigter Elektromotor des Rotationsantriebes, der mit einem an der Welle befestigten Kettenrad ein Antriebsvorgelege bildet, zwischen einem Strahlrohr und einem Wellenende der Welle angeordnet ist.According to the invention the object is achieved in that the jet pipe is attached to one of the supporting elements of the frame connecting and the blasting medium having carrier, which is designed as a rotating shaft whose shaft ends are each rotatably mounted in bearing blocks on which the support elements are arranged and that a fixed to the frame electric motor of the rotary drive, which forms a Antriebsvorgelege with a sprocket attached to the shaft, between a jet pipe and a shaft end of the shaft is arranged.

Nachfolgend wird die Erfindung unter Bezugnahme auf den zitierten resp. den zitierenden Stand der Technik und die Zeichnung, auf die bezüglich aller in der Beschreibung nicht näher erwähnten Einzelheiten verwiesen wird, anhand eines Ausführungsbeispiels erläutert. In der Zeichnung zeigen:

Fig. 1
einen Ausschnitt einer Leitung mit einer erfindungsgemässen Einrichtung und
Fig. 2
eine Schnittansicht entlang der Längsmittelachse eines Strahlaggregates der Einrichtung.
The invention will be described with reference to the cited resp. the cited prior art and the drawing, to which reference is made with respect to all unspecified details in the description explained using an exemplary embodiment. In the drawing show:
Fig. 1
a section of a line with an inventive device and
Fig. 2
a sectional view taken along the longitudinal center axis of a jet aggregate of the device.

Fig. 1 zeigt eine Einrichtung 1 zur Reinigung einer Innenwand 5 einer Leitung 3, wie sie beispielsweise bei Wasserkraftwerksanlagen in Druckleitungen verwendet wird. Durch das in den Druckleitungen strömende Wasser bildern sich Ablagerungen, Schmutz und Korrosion an den Innenwänden, zudem sind die Rohrleitungen meist mit einer Innenbeschichtung versehen, die nicht mehr den notwendigen Schutz bieten und den heutigen Normen und Vorschriften nicht mehr entsprechen, sodass sie beseitigt werden müssen. Fig. 1 shows a device 1 for cleaning an inner wall 5 of a line 3, as used for example in hydropower plants in pressure lines. The water flowing in the pressure lines forms deposits, dirt and corrosion on the inner walls. In addition, the pipelines are usually provided with an interior coating which no longer provides the necessary protection and no longer meets today's standards and regulations, so that they must be eliminated ,

Die Fig. 1 und 2 veranschaulichen eine Einrichtung 1 zur Reinigung der Innenwand 5 einer Gas oder Flüssigkeit führenden Leitung 3 durch eine etwa senkrechte Beaufschlagung der Innenwand 5 mit einem körnigen, flüssigen oder gasförmigen Strahlmittel. Die Einrichtung 1 besteht aus einem entlang der Innenwand 5 der Leitung 3 an einem Gestell 4 befestigten Strahlaggregat 2, dem einenends des an einem Zugseil 6 oder dgl. schlepp- oder absenkbaren Gestell 4 das Strahlmittel in einer Druckleitung 7 zugeführt wird. Das in der Längsmittelachse der Leitung 3 geführte Strahlaggregat 2 weist mehrere von einer rotierenden Welle 8 senkrecht gegen die Innenwand 5 gerichtete Strahlrohre 9 auf, durch die das Strahlmittel mit hohem Druck gegen die Innenwand 5 der Leitung 3 ausgetragen wird. Der an der Innenwand 5 auftreffende Strahl wirkt auf die Oberfläche der Innenwand der Leitung 3 abrasiv und löst den Schmutz resp. Fremdstoffe von der Innenwand 5. Es können mehrere Strahlrohre 9 auf einen Rotationskreis bezogen verteilt und in Richtung der Rotationsachse 10 versetzt an der Welle 8 befestigt sein. Das vorliegende Ausführungsbeispiel zeigt zwei um 180° an der Rotationsachse 10 in einer Kreisebene versetzte Strahlrohre 9, die in die Welle 8 geschraubt oder gesteckt sind. Das Strahlmittel wird den Strahlrohren 9 über eine in der Rotationsachse 10 der Welle 8 geführte Strahlmittelleitung 11 zugeführt, die am Förderende 12 in radial nach aussen gerichtete, mit den Strahlrohren 9 verbundene Verteilleitungen 13 mündet, sodass die Strahlrohre 9 mit dem Strahlmittel versorgt werden können. Werden Verteilleitungen 13 nicht benutzt, dann ist der Strahlrohrausgang n der Welle 8 beispielsweise mit einem Stopfen zu schliessen. Das Strahlaggregat 2 seinerseits, ist durch die Enden der Welle 8 in zwei in Leitungsführungsrichtung betrachtet beabstandet verbundenen Lagerböcken 14, 15 gelagert, wobei die Lagerböcke 14, 15 an jeweils einem an der Innenwand 5 der Leitung 3 etwa senkrecht anstehenden Stützelement 16, 17, die mit der rotierenden Welle 8 das Gestell 4 bilden, befestigt sind. Die Stützelemente 16, 17 weisen auf die Oberfläche der Innenwand 5 verteilt wenigstens drei Stützbeine 18, 19 auf, an deren freien Enden Laufrollen 20 oder Gleitkufen gelagert sind. Selbstverständlich können die Stützbeine 18, 19 hinsichtlich der Länge verstellt werden, damit die Einrichtung 1 in unterschiedlich grossen Leitungsquerschnitten einsatztauglich ist.The Fig. 1 and 2 illustrate a device 1 for cleaning the inner wall 5 of a gas or liquid-carrying line 3 by an approximately vertical loading of the inner wall 5 with a granular, liquid or gaseous blasting agent. The device 1 consists of a along the inner wall 5 of the line. 3 attached to a frame 4 blasting unit 2, the one end of a tow rope 6 or the like. Drag or lowerable frame 4, the blasting agent is supplied in a pressure line 7. The guided in the longitudinal central axis of the line 3 jet unit 2 has a plurality of a rotating shaft 8 directed perpendicularly against the inner wall 5 jet pipes 9, through which the blasting agent is discharged at high pressure against the inner wall 5 of the line 3. The incident on the inner wall 5 beam acts on the surface of the inner wall of the line 3 abrasive and dissolves the dirt resp. Foreign substances from the inner wall 5. It can be distributed in relation to a rotation circle and distributed in the direction of the axis of rotation 10 offset to the shaft 8 a plurality of jet pipes 9. The present embodiment shows two offset by 180 ° on the axis of rotation 10 in a circular plane beam tubes 9, which are screwed or plugged into the shaft 8. The blasting medium is fed to the jet tubes 9 via a blasting line 11 which is guided in the axis of rotation 10 of the shaft 8 and opens at the conveying end 12 into radially outwardly directed distribution lines 13 connected to the blasting tubes 9 so that the blasting tubes 9 can be supplied with the blasting medium. If distribution lines 13 are not used, then the jet pipe outlet n of the shaft 8 is to be closed with a plug, for example. The jet unit 2, in turn, is supported by the ends of the shaft 8 in two spaced in the guide direction spaced bearing blocks 14, 15, wherein the bearing blocks 14, 15 on each of the inner wall 5 of the line 3 about perpendicularly pending support member 16, 17, the with the rotating shaft 8 form the frame 4, are attached. The support elements 16, 17 have on the surface of the inner wall 5 distributed at least three support legs 18, 19, at the free ends rollers 20 or skids are mounted. Of course, the support legs 18, 19 are adjusted in terms of length, so that the device 1 is suitable for use in different sizes line cross sections.

Der Rotationsantrieb des im Wesentlichen aus Welle 8 und Strahlrohren 9 gebildeten Strahlaggregates 2 besteht aus einem Elektromotor 21, der mit dem Gestell 4 fest verbunden ist, und einer umlaufenden Kette 22 oder einem Riemen, der ein auf der Welle 8 sitzendes Kettenrad 23 resp. Riemenrad antreibt. Zur gestellseitigen Befestigung des Elektromotors 21 eignet sich ein Support 24, auf dem der Elektromotor 21 festgeschraubt ist.
Dem Strahlaggregat 2 wird das Strahlmittel an einem dem Zugseil-Befestigungsende 25 gegenüberliegenden Gestellende zugeführt und das Strahlaggregat 2 sowie der diesem zugeordnete Rotationsantrieb 26, bestehend aus dem mit dem Gestell 4 verbundenen Elektromotor 21, der Kette 22 und dem auf der Welle 8 sitzenden Kettenrad 23, ist in Leitungsführungsrichtung betrachtet zwischen den Gestellenden resp. den Lagerböcken 14, 15 resp. den Stützelementen 16, 17 angeordnet. Die Drehzahl des Rotationsantriebs 26 kann zur Anpassung an die herrschenden Umstände resp. die Hartnäckigkeit zur Entfernung der Fremdstoffe über eine nicht dargestellte Steuerung geändert werden.
Die Verbindung von dem Strahlaggregat 2 zu einer Strahlmittelquelle erfolgt durch eine flexible Druckleitung 7, die mittels Kupplung 28 mit der rotierenden Welle 8 resp. der Druckleitung 7 verbunden ist. Selbstverständlich kann die flexible Druckleitung 27 auch als Zugmittel der Einrichtung 1 in einer Leitungsführungsrichtung dienen. Der einrichtungsseitige Kupplungsteil der Kupplung 28 ist verdrehsicher an dem Gestell 4 befestigt.The rotary drive of the jet unit 2 formed essentially of shaft 8 and jet pipes 9 consists of an electric motor 21 which is fixedly connected to the frame 4, and a revolving chain 22 or a belt, which is a seated on the shaft 8 sprocket 23, respectively. Belt pulley drives. For attachment to the frame of the electric motor 21, a support 24 is suitable, on which the electric motor 21 is screwed tight.
The blasting unit 2, the blasting agent is supplied to one of the traction cable attachment end 25 opposite end of the frame and the jet unit 2 and associated therewith the rotary drive 26, consisting of the connected to the frame 4 electric motor 21, the chain 22 and the seated on the shaft 8 sprocket 23rd is viewed in line direction between the frame ends resp. the bearing blocks 14, 15 respectively. the support elements 16, 17 are arranged. The rotational speed of the rotary drive 26 may be to adapt to the prevailing circumstances resp. the tenacity to remove the foreign matter through a controller, not shown, to be changed.
The connection of the jet unit 2 to a blasting agent source is effected by a flexible pressure line 7, which by means of coupling 28 with the rotating shaft 8, respectively. the pressure line 7 is connected. Of course, the flexible pressure line 27 can also serve as traction means of the device 1 in a line guide direction. The device-side coupling part of the clutch 28 is secured against rotation on the frame 4.

Zur Lagerung der Welle 8 (siehe Fig. 2) an den Wellenenden 41, 42 weisen letztere einen zur Montage von paarweise entgegengesetzt angeordneten Wälzlagern 43, 53, beispielsweise Kegelrollenlager, vorzugsweise geringeren Durchmesser auf. Die Wälzlager 43, 53 sind jeweils durch eine auf den Innenring wirkende Spannmutter 44 gegen eine durch den geringeren Durchmesser des Wellenendes 41, 42 gebildete Schulter 45 gepresst. Durch eine aus zwei hälftigen Teilen 46, 47 gebildete Lagerschale 48 werden die Wälzlager 43, 53 jeweils an dem Aussenring axial positioniert und mittels die Lagerschale 48 axial durchsetzenden Einstellschrauben 49 einer Einstellvorrichtung 52 eingestellt resp. vorgespannt. Zuvor werden die hälftigen Teilschalen 46, 47 auf die an dem Wellenende 41, 42 vormontierten Wälzlager 43, 53 an dem einen Aussenring des einen Wälzlagers 43, 53 anliegend aufgesetzt und entlang der Rotationsachse 10 zur Lagerschale 48 so zusammengeschraubt, dass die paarweise entgegengesetzt zueinander angeordneten Wälzlager 43, 53 an den Aussenringen gegenseitig einstellbar resp. vorspannbar sind.For storage of the shaft 8 (see Fig. 2 ) at the shaft ends 41, 42 have the latter for mounting pairs of oppositely arranged rolling bearings 43, 53, for example, tapered roller bearings, preferably smaller diameter. The rolling bearings 43, 53 are each formed by a force acting on the inner ring clamping nut 44 against a formed by the smaller diameter of the shaft end 41, 42 Shoulder 45 pressed. By a two-half parts 46, 47 formed bearing shell 48, the rolling bearings 43, 53 respectively axially positioned on the outer ring and adjusted by means of the bearing shell 48 axially passing through adjusting screws 49 of a setting 52. biased. Previously, the half-shells 46, 47 mounted on the pre-mounted on the shaft end 41, 42 bearings 43, 53 on the one outer ring of a rolling bearing 43, 53 and screwed along the axis of rotation 10 to the bearing shell 48 so that the pairs arranged opposite to each other Rolling 43, 53 on the outer rings mutually adjustable resp. can be prestressed.

Die in einer stark verschmutzten Umgebung hohen Belastungen ausgesetzten Antriebs- und Lagerelemente der Einrichtung 1 und der Reinigungsvorgang erfordern eine ständige Kontrolle und werden durch eine Kamera überwacht. Um die verschleissanfälligen Antriebs-, Lager- und andere Elemente auf der Baustelle resp. in der Leitung 3 umgehend austauschen zu können, bedarf es -wie vorgeschlageneinfacher Mittel und Möglichkeiten zur Behebung eines Stillstandes der Einrichtung 1. Deshalb ist die Lagerung der Welle 8 durch zwei Schalenhälften 46, 47 zur Bildung einer die Wälzlager 43 an den Aussenringen aufnehmenden Lagerschale 48 ausgebildet.The in a heavily polluted environment high loads exposed drive and bearing elements of the device 1 and the cleaning process require constant control and are monitored by a camera. To the wear-prone drive, bearing and other elements on the site resp. Therefore, the bearing of the shaft 8 by two shell halves 46, 47 to form a rolling bearing 43 on the outer rings receiving bearing shell 48th educated.

Ebenso ist der zwischen den Lagerböcken 14, 15 der Welle 8 zugeordnete Rotationsantrieb 26 mit einem einfach ersetzbaren Kettenrad 23 ausgebildet, das aus zwei Radhälften besteht und mit einer auf der Welle 8 festsitzenden Nabe 50 lösbar verbunden ist. Die Antriebskette 22 kann durch Trennen resp. Zusammenfügen zweier Kettenglieder auf einfache Art ersetzt oder repariert werden. Dadurch können Defekte an der Einrichtung 1 innerhalb der Leitung 3 behoben werden, sofern der Querschnitt der Leitung 3 den Zugang des Servicepersonals zur Einrichtung 1 erlaubt. Die Bauweise gestattet einen einfachen Umgang und Unterhalt mit der Einrichtung 1 in Leitungen 3 mit unterschiedlichen Querschnitten und erlaubt die Behebung eines Defekts an der Einrichtung 1 ohne Auflösung der Anlageinstallation. Die Einrichtung 1 wird zur Reinigung einer Leitung 3 entlang der Innenwand 5 resp. Innenwände bei eckigem Leitungsquerschnitt über ein mit einer Winde verbundenes Zugseil 6 hinuntergelassen und/oder hochgezogen resp. bei horizontalem Leitungsverlauf oder geringem Gefälle geschleppt. Das Zugseil 6 verbindet die Winde mit der Einrichtung 1 durch eine an dem Gestellende vorgesehene Befestigungsvorrichtung 30, beispielsweise einem Haken oder einer Oese.Likewise, between the bearing blocks 14, 15 of the shaft 8 associated rotary drive 26 is formed with a simple replaceable sprocket 23, which consists of two wheel halves and is releasably connected to a seated on the shaft 8 hub 50. The drive chain 22 can by separating resp. Joining two chain links easily replaced or repaired. As a result, defects in the device 1 can be corrected within the line 3, provided that the cross section of the line 3 allows the access of the service personnel to the device 1. The design allows easy handling and maintenance with the device 1 in lines 3 with different cross-sections and allows the elimination of a defect in the device 1 without dissolution of the installation installation. The device 1 is for cleaning a line 3 along the inner wall 5, respectively. Lowered inner walls in square cross section of a cable connected to a winch 6 and / or pulled up resp. dragged on a horizontal line or on a slight incline. The traction cable 6 connects the winch to the device 1 by means of a fastening device 30 provided on the frame end, for example a hook or an eyelet.

In der Regel wird die Einrichtung 1 so eingesetzt, dass das Strahlmittel von unten aus einem Auffangbecken der Einrichtung 1 zugeführt wird und das Zugseil 6 an dem gegenüberliegenden Ende des Gestells 4 angebracht ist, sodass das zum Abbau der Fremdstoffe von unten zugeführte Strahlmittel an der Innenwand 5 ab- resp. zurückfliessen und von dem Auffangbecken aufgenommen wird. Dadurch kann das mit einem hohen Wasseranteil versehen Strahlmittel und dessen Belastung kontrolliert aufbereitet und ggf. entsorgt werden.In general, the device 1 is used so that the blasting agent is supplied from below from a catch basin of the device 1 and the pull cable 6 is attached to the opposite end of the frame 4, so that the removal of foreign substances from below supplied blasting agent on the inner wall 5 ab- resp. flow back and is absorbed by the catch basin. As a result, the blasting agent provided with a high proportion of water and its load can be processed in a controlled manner and possibly disposed of.

Die Einrichtung 1 eignet sich insbesondere für eine verfahrensmässige Anwendung, wenn sie in einen Strahlmittelkreislauf geschaltet ist, in dem das Strahlmittel aus einem mit der Leitung 3 verbundenen Auffangbecken der Einrichtung 1 zugeführt und entlang der Innenwand 5 der Leitung 3 in das Auffangbecken zurückgeführt wird. Die Rückführung des Strahlmittels in das Auffangbecken kann durch ein Leitungsgefälle oder eine Pumpe erfolgen.The device 1 is particularly suitable for a procedural application when it is connected in a blasting medium circuit in which the blasting agent is supplied from a connected to the line 3 catch basin of the device 1 and returned along the inner wall 5 of the line 3 in the catch basin. The return of the blasting agent in the catch basin can be done by a line gradient or a pump.

Claims (10)

  1. Device for cleaning a conduit (3) carrying gas or liquid by removing dirt, corrosion or other coatings to be stripped from the inner wall (5) of the conduit (3) by blasting the inner wall (5) of the conduit (3) approximately vertically with a granular, liquid or gaseous abrasive, consisting of an abrasive blasting unit (2) which is guided along the inner wall (5) of the conduit (3) by means of a frame (4) and to which the abrasive is supplied in a delivery conduit (7) at one end of the frame (4) that can be pulled or lowered by a pulling mechanism (6), wherein the abrasive blasting unit (2) fastened to the frame (4) comprises at least one abrasive blasting pipe (9) directed approximately vertically relative to the inner wall (5) of the conduit (3) and driven in rotation about an axis extending approximately parallel to the conduit (3), the abrasive is supplied to the abrasive blasting unit (2) guided by the frame (4) at a uniform distance from the inner wall or centrally of the conduit (3) at an end of the frame opposite the fastening end (25) of the pulling rope, the abrasive blasting unit (2) and a rotary drive (26) associated therewith are arranged between the ends of the frame formed by two supporting elements (16, 17) projecting vertically relative to the inner wall (5) of the conduit (3) as viewed in the direction of the conduit and a rotary drive (26) associated with the abrasive blasting unit (2) is connected to the frame (4), characterised in that the abrasive blasting pipe (9) is fastened to a member connecting the supporting elements (16, 17) of the frame (4) and comprising the abrasive conduit (11), said member being designed as a rotary shaft (8) the ends of which are rotatably supported in bearing blocks (14, 15) on which the supporting elements (16, 17) are arranged, and that an electric motor (21) of the rotary drive (26) fastened to the frame (4) and forming an intermediate drive gear together with a chain wheel (23) fastened to the shaft (8) is arranged between an abrasive blasting pipe (9) and one end of the shaft (8).
  2. Device according to claim 1, characterised in that the axis of rotation (10) of the shaft (8) comprises the abrasive conduit (11) which opens into radially outwardly directed manifolds (13) operatively connected to abrasive blasting pipes (9) in the conveying end region between the ends of the shaft.
  3. Device according to claim 1 or claim 2, characterised in that the chain wheel (23) preferably comprises two half chain wheels fastened to a hub (50) seated on the shaft (8).
  4. Device according to one of claims 1 to 3, characterised in that the shaft (8) is supported at either end in roller bearings (43) in respective bearing bushings (48) formed by half bushings (45, 46).
  5. Device according to claim 4, characterised in that the inner races of the roller bearings (43) are each arranged on an end (41, 42) of the shaft comprising a shoulder and are set on the shoulder by means of clamping nuts (44).
  6. Device according to claim 4 or claim 5, characterised in that the bearing bushing (48) is designed as a clamping device acting on the outer races of two adjacent roller bearings (43, 53) and is arranged in a torsion-resistant manner in a housing (51) of a supporting element (16, 17).
  7. Device according to one of claims 4 to 6, characterised in that the bearing bushing (48) comprises an adjusting device (52) acting on the outer races of the roller bearings (43, 53) in order to preload the latter.
  8. Device according to claim 7, characterised in that the adjusting device (52) comprises adjusting screws (49) traversing the bearing bushing (48) parallel to the axis of rotation (10).
  9. Method of cleaning a conduit (3) carrying gas or liquid using the device according to one of claims 1 to 8 in an abrasive circuit, characterised in that the abrasive is supplied to the device (1) or to the abrasive blasting unit (2) from a receptacle connected to the conduit (3) and is returned to the receptacle along the inner wall (5) of the conduit (3).
  10. Method according to claim 9, characterised in that the abrasive is returned to the receptacle by the gradient of the conduit or by a pump.
EP20090405132 2009-08-04 2009-08-04 Device for cleaning a gas or liquid transporting conduit Not-in-force EP2281639B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20090405132 EP2281639B1 (en) 2009-08-04 2009-08-04 Device for cleaning a gas or liquid transporting conduit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20090405132 EP2281639B1 (en) 2009-08-04 2009-08-04 Device for cleaning a gas or liquid transporting conduit

Publications (2)

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EP2281639A1 EP2281639A1 (en) 2011-02-09
EP2281639B1 true EP2281639B1 (en) 2013-02-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109985865A (en) * 2017-12-29 2019-07-09 中国核动力研究设计院 A kind of washing and cleaning operation device of pipeline cleaning robot

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Publication number Priority date Publication date Assignee Title
CN103639161B (en) * 2013-11-19 2015-12-30 无锡新人居科贸有限公司 Central air-conditioning clearing apparatus
CN103639160B (en) * 2013-11-19 2015-12-30 无锡新人居科贸有限公司 Status of air duct cleaning device
CN106975641B (en) * 2017-03-29 2023-02-21 成都理工大学 Multifunctional bionic pipe cleaner and cleaning method thereof
CN111817210B (en) * 2020-06-13 2021-08-13 中外建安装有限公司 Electric wire pipe laying process
CN114405943B (en) * 2022-01-26 2023-09-01 江苏诚丰建设有限公司 Municipal pipeline cleaning device

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US922353A (en) * 1909-05-18 George S Stuart Chimney-cleaner.
US2418045A (en) * 1943-09-28 1947-03-25 Joseph H Neider Apparatus for cleaning open hearth checker work and the like
US4475260A (en) * 1983-01-31 1984-10-09 Beck Richard D Pipeline servicing tool
DE4017367A1 (en) 1990-05-30 1991-12-05 Aquaplus Brunnensanierung Kaet Cleaning insides of pipes - involves rotary nozzle assembly coupled to separate rotary drive device
DE4017368A1 (en) 1990-05-30 1991-12-05 Aquaplus Brunnensanierung Kaet Cleaning insides of pipes - involves guide carriage with centring rods and spring-loaded lever arms
DE19626590C2 (en) 1996-07-02 2000-12-07 Aquaplus Brunnensanierung H Mu Device for cleaning the inner surfaces of pipes, such as well pipes in well shafts
US5829461A (en) * 1997-01-10 1998-11-03 Ramsey; Donald Interior tank cleaning apparatus
US6390105B1 (en) 2000-04-03 2002-05-21 Donald Ramsey Small diameter pipe and tube cleaning apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109985865A (en) * 2017-12-29 2019-07-09 中国核动力研究设计院 A kind of washing and cleaning operation device of pipeline cleaning robot
CN109985865B (en) * 2017-12-29 2021-07-20 中国核动力研究设计院 Cleaning operation device of pipeline cleaning robot

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