EP0147784B1 - Pipe system cleaning device, especially for tapping conduits - Google Patents

Pipe system cleaning device, especially for tapping conduits Download PDF

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Publication number
EP0147784B1
EP0147784B1 EP84115793A EP84115793A EP0147784B1 EP 0147784 B1 EP0147784 B1 EP 0147784B1 EP 84115793 A EP84115793 A EP 84115793A EP 84115793 A EP84115793 A EP 84115793A EP 0147784 B1 EP0147784 B1 EP 0147784B1
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EP
European Patent Office
Prior art keywords
valve
housing
intermediate housing
cleaning
coupling
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.)
Expired
Application number
EP84115793A
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German (de)
French (fr)
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EP0147784A2 (en
EP0147784A3 (en
Inventor
Friedrich Bersch
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Individual
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Individual
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Priority to AT84115793T priority Critical patent/ATE47053T1/en
Publication of EP0147784A2 publication Critical patent/EP0147784A2/en
Publication of EP0147784A3 publication Critical patent/EP0147784A3/en
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Publication of EP0147784B1 publication Critical patent/EP0147784B1/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
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0551—Control mechanisms therefor
    • 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
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/057—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices being entrained discrete elements, e.g. balls, grinding elements, brushes

Definitions

  • the invention relates to a device for cleaning pipelines, in particular dispensing lines, by means of cleaning bodies, with a four-way changeover valve, which optionally connects an inlet connection for the supply of cleaning liquid with one of two work connections and the other work connection with a drain connection, whereby an intermediate housing extends between the valve housing and at least one of the working connections, which leads in particular from a small cross section corresponding to the working connection to a larger cross section.
  • the ends of two beer lines can be connected to the working connections of the changeover valve via the connecting lines and are connected to each other at their other ends, so that a circuit results.
  • Water from the house water pipe is supplied as cleaning liquid via the inlet connection.
  • the drain connection is connected to the normal house drain.
  • the cleaning liquid flows through one beer line and back through the other beer line, the cleaning bodies designed as sponges being carried along. Once this. impinging on the piston of the changeover valve, this is shifted and the flow direction is thereby reversed.
  • the cleaning bodies run the same way back and in the end switch the valve again.
  • a two-part intermediate housing which consists of a glass cylinder and a flange that carries the working connection.
  • This flange is connected to a flange on the valve housing using several screws.
  • the working connection has an external thread onto which the screw cap of a coupling which can be released by hand can be screwed, with the aid of which a connecting line can be coupled.
  • the cleaning bodies designed as sponges have a size adapted to the connecting line and the beer line.
  • the cross-section of the working connection corresponds to the line cross-section.
  • the sponge-like cleaning bodies have to be removed from the interior of the intermediate housing after each uncoupling of the connecting line and brought to another storage location. If they were left in the intermediate housing, they would dry out after the water had run off and could absorb germs from the ambient air. Since the removal must take place through the work connection, a special gripping tool is required depending on the swelling condition of the cleaning bodies. It is just as difficult to remove dirt particles that have been retained by the sieve plate on the piston. Another disadvantage is that only a pipeline of the same diameter can be cleaned with a changeover valve, because the working connection only fits for a certain line cross section. But since tap lines of different cross-section are often available, e.g. B. beer lines with 7 to 12 mm diameter and lines for non-alcoholic beverages of 5 mm diameter, you need a corresponding number of switching valves.
  • the invention has for its object to provide a cleaning device of the type described in the introduction, in which the problems associated with the removal of the cleaning bodies from the intermediate housing are reduced or eliminated.
  • the intermediate housing forms a storage container for cleaning bodies, which has a closable filling opening for filling a storage liquid in its interior and has a lock for maintaining a liquid level lying above the resting cleaning bodies.
  • the intermediate housing is designed as a storage container in which the cleaning bodies can be permanently in a storage liquid, that is to say they are sealed off from the air.
  • the storage liquid can be sterile, so that the cleaning body at the next groove. no germs can be introduced into the pipes.
  • the cleaning bodies are located in the immediate vicinity of the changeover valve and therefore cannot be lost.
  • the cleaning bodies are immediately taken into the connecting lines by the cleaning liquid.
  • the closure of the filling opening can preferably be opened by hand.
  • the intermediate housing is connected to the valve housing in the region of its larger cross section via a coupling which can be released by hand and has a correspondingly large inner diameter.
  • the removal of the cleaning bodies from the intermediate housing is facilitated in that the interior thereof is very conveniently accessible via a large opening cross section.
  • the cleaning bodies can simply be removed or poured out by tipping over.
  • a coupling that can be released by hand that is to say without a tool, in the region of the larger cross section of the intermediate housing, it is ensured that the interior can be made quickly accessible.
  • the intermediate housing forms an adapter head connected to the connecting line can be handled much better during the coupling process than a small end section of the connecting line. Since the adapter head can be permanently assigned to the respective connection line, each connection line, regardless of its diameter, can be connected to one and the same changeover valve.
  • the cleaning device is therefore very versatile and easy to use.
  • Both alternatives can also be used in a common construction, in which the intermediate housing is arranged under the valve housing; its opening surrounded by the coupling forms the filling opening and a shut-off valve is provided in the area of the working connection.
  • the shut-off valve When the shut-off valve is closed and the intermediate housing is uncoupled, the cleaning bodies can be stored in the intermediate housing and the storage liquid can be filled in through the opening in the coupling area to such an extent that the cleaning bodies are covered.
  • the filling opening is closed by connection to the valve housing by means of the coupling.
  • the cleaning bodies are automatically taken along after the shut-off valve has been opened and cleaning fluid has been added.
  • the intermediate housing is connected directly to the valve housing via the coupling, which can be released by hand, and the inner diameter of the coupling corresponds at least to the diameter of the effective piston face area.
  • At least two sets of adapter heads formed by intermediate housings can be assigned to a valve housing, the working connections of which have different diameters, but are otherwise identical to one another.
  • connecting lines with a diameter of 7 mm and those with a diameter of 10 mm can be available in a beverage cellar, each of which is provided with corresponding adapter heads. Then both 7 mm pipes and 10 mm pipes can be cleaned with one and the same switching valve.
  • the coupling which can be released by hand is particularly advantageously a quick coupling which can be closed and / or released by a relative movement of the intermediate housing with respect to the valve housing.
  • the intermediate housing can be gripped well, so that the quick coupling can be actuated safely. This is much more convenient than operating the small screw cap in the known releasable coupling.
  • a quick coupling reference is made to a plug-in coupling, as is customary for garden hoses with smaller dimensions, the coupling being closed by axial plugging in and loosening by axially displacing a locking ring.
  • the quick coupling can be closed or released in the manner of a bayonet lock by rotating and axially displacing the intermediate housing relative to the valve housing. In this case, only the intermediate housing needs to be moved both for closing and for releasing.
  • valve housing has a flange which has cutouts offset in the circumferential direction
  • intermediate housing has matching hooks which are open in the circumferential direction and which encompass the remaining flange sections.
  • the intermediate housing is particularly advantageously formed in one piece with the working connection. In particular, no intermediate fastenings interfere when the intermediate housing is gripped by hand.
  • the clutch which can be released by hand, should be located near the piston end of the changeover valve. This gives the adapter head a relatively large axial length, which makes handling easier.
  • the intermediate housing should have an axial length of at least 10 cm.
  • the intermediate housing has longitudinal ribs on the outer circumference. As a result, the required torque can be applied particularly easily by hand.
  • a changeover valve 1 has a valve housing 2 with an inlet connection 3 and an outlet connection 4.
  • a piston 5 is displaceable in the housing, the end faces of which are formed by sieve plates 6 and 7, respectively. It has two valve openings 8 and 9.
  • the valve opening 8 is in the illustrated piston position with an annular space 10 and therefore with the drain port 4 in connection.
  • the valve opening 9 is connected to the channel 11 in the interior of the inlet connection 3.
  • the piston has a longitudinal groove 12, the ends of which serve as limit stops for the axial movement of the piston 5 and the flat bottom of which is the end face of the inlet connection ses 3 is opposite.
  • valve housing 2 made of transparent plastic intermediate housing 13 and 14, which are made in one piece with a working connection 15 and 16, respectively. They are constantly connected to a corresponding connecting line 17 or 18, for example by means of a clamp 20 or 19 (Fig. 2). They therefore each form a matching head for connection to the valve housing 2 for these connecting lines.
  • the intermediate housings are provided on the outside with longitudinal ribs 21 and 22 and have a length of more than 10 cm.
  • the upper intermediate housing 13 is detachably connected to the valve housing 2 by means of a quick coupling 23, the lower intermediate housing 14 by means of a quick coupling 24 without tools.
  • the expansion of this coupling which works in the manner of a bayonet lock, is shown in FIGS. 2 to 4.
  • a radial flange 25 is provided on the valve housing 2, which has individual cutouts 26 offset in the circumferential direction, so that flange sections 27 remain.
  • the intermediate housing 14 has hooks 28 which fit through the cutouts 26 and are open in the circumferential direction. As a result, the intermediate housing 14 can be brought from the open position in FIG. 3 by a short axial movement and a subsequent brief rotary movement into the coupling position of FIG. 4.
  • the coupling is released in the same way by turning back and moving axially back.
  • the quick coupling 23 is constructed in the same way.
  • the piston 5 is sealed against the housing 2 by two sealing rings 29 and 30. Furthermore, when the couplings 23 and 24 are tightened, sealing rings 31 and 32 are pressed against an annular surface of the valve housing 2.
  • the lower intermediate housing 14 in FIG. 1 has a shut-off valve 33 with a valve flap 35 which can be pivoted about an axis 34 and which can be pivoted into the position 36 shown in broken lines.
  • the shut-off valve 33 When the shut-off valve 33 is closed, the usual cleaning bodies 37, which are in the form of sponge balls, can be brought into the interior 38 of the intermediate housing 14 and stored there.
  • the intermediate housing 14 is detached from the valve housing 2 and a sterile storage liquid is poured in through the resulting large opening 39 to a level such that the cleaning bodies 37 are completely covered.
  • the shut-off valve 33 only needs to be opened.
  • the cleaning bodies 37 are then automatically taken into the circuit by the cleaning liquid.
  • the intermediate housing 14 therefore serves as a storage container for the cleaning bodies.
  • the changeover valve is easily accessible.
  • the piston can be moved into the correct starting position by hand.
  • the interior of the intermediate housing 13 and 14 can also be easily cleaned.
  • the cleaning bodies 37 can be gripped comfortably or removed by tipping over.
  • connecting lines 17 and 18 each have a coupling 40 and 41 at their free end, via which they can be connected to a dispensing line 42 and 43, respectively.
  • the other two ends of the dispensing lines are connected to one another via a hose section 44, so that a pipeline circuit results.
  • the hose section 44 can be arranged between two taps on the bar table.
  • a first set of intermediate housings 13 and 14 serving as adapter heads with associated connecting lines 17 and 18 and a second set of intermediate housings 113 and 114 serving as adapter heads with associated connecting lines 117 and 118 are assigned in changeover valve 1.
  • the connecting lines 117 and 118 have a larger diameter than the connecting lines 17 and 18. Accordingly, the working connections 115 and 116 of the intermediate housings 113 and 114 are larger than the working connections 15 and 16 for the intermediate housings 13 and 14. Otherwise, the intermediate housings are equal to each other.
  • a pipe system with a larger internal cross section can be cleaned using larger cleaning bodies.
  • the shut-off valve 33 can also be a shut-off hook. It can be formed separately from the intermediate housing 14 and connected to the working connection 18.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Multiple-Way Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

Apparatus for cleaning pipelines of finite length has a four-way flow reversing valve whose body admits a liquid cleaning agent from an inlet into one port and thence into a pipeline whence the cleaning agent flows back into the body by way of a second port and is discharged by way of an outlet. The valving element is a piston which is reciprocable between two end positions in one of which the flow of cleaning agent takes place as outlined above and in the other of which the cleaning agent flows first into the other port and returns into the body of the valve by way of the one port to be discharged by way of the outlet. The body of the valve is separably connected with the larger-diameter end portions of two cylindrical housings whose smaller-diameter end portions are separably connectable with the respective ends of the pipeline. A supply of cleaning elements, such as balls of sponge rubber, is used in the apparatus to automatically change the position of the piston as soon as they impinge upon the one or the other end of the piston.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Reinigung von Rohrleitungen, insbesondere Schankleitungen, mittels Reinigungskörpern, mit einem Vierwege-Umschaltventil, das wahlweise einen Zulaufanschluß für die Zufuhr von Reinigungsflüssigkeit mit einem von zwei Arbeitsanschlüssen und den jeweils anderen Arbeitsanschluß mit einem Ablaufanschluß verbindet, wobei sich zwischen dem Ventilgehäuse und mindestens einem der Arbeitsanschlüsse ein Zwischengehäuse erstreckt, das insbesondere von einem dem Arbeitsanschluß entsprechenden kleinen Querschnitt zu einem größeren Querschnitt überleitet.The invention relates to a device for cleaning pipelines, in particular dispensing lines, by means of cleaning bodies, with a four-way changeover valve, which optionally connects an inlet connection for the supply of cleaning liquid with one of two work connections and the other work connection with a drain connection, whereby an intermediate housing extends between the valve housing and at least one of the working connections, which leads in particular from a small cross section corresponding to the working connection to a larger cross section.

Bei einer bekannten Vorrichtung dieser Art (DE-OS 1782 136) können an die Arbeitsanschlüsse des Umschaltventils über die Verbindungsleitungen die Enden zweier Bierleitungen angeschlossen werden, die an ihrem anderen Ende miteinander verbunden werden, so daß sich ein Kreislauf ergibt. Als Reinigungsflüssigkeit wird über den Zulaufanschluß Wasser aus der Hauswasserleitung zugeführt. Der Ablaufanschluß ist mit dem normalen Hausablauf verbunden. Die Reinigungsflüssigkeit strömt durch die eine Bierleitung hin und durch die andere Bierleitung zurück, wobei die als Schwämmchen ausgebildeten Reinigungskörper mitgenommen werden. Sobald diese. auf den Kolben des Umschaltventils auftreffen, wird dieser verschoben und dadurch die Strömungsrichtung umgekehrt. Die Reinigungskörper laufen denselben Weg zurück und schalten am Ende wiederum das Ventil um.In a known device of this type (DE-OS 1782 136), the ends of two beer lines can be connected to the working connections of the changeover valve via the connecting lines and are connected to each other at their other ends, so that a circuit results. Water from the house water pipe is supplied as cleaning liquid via the inlet connection. The drain connection is connected to the normal house drain. The cleaning liquid flows through one beer line and back through the other beer line, the cleaning bodies designed as sponges being carried along. Once this. impinging on the piston of the changeover valve, this is shifted and the flow direction is thereby reversed. The cleaning bodies run the same way back and in the end switch the valve again.

An beide Seiten des Ventilgehäuses schließt je ein zweiteiliges Zwischengehäuse an, das aus einem Glaszylinder und einem den Arbeitsanschluß tragenden Flansch besteht. Dieser Flansch ist über mehrere Schrauben mit einem Flansch am Ventilgehäuse verbunden. Der Arbeitsanschluß weist ein Außengewinde auf, auf das die Schraubkappe einer von Hand lösbaren Kupplung aufschraubbar ist, mit deren Hilfe eine Verbindungsleitung angekuppelt werden kann. Die als Schwämmchen ausgebildeten Reinigungskörper haben eine der Verbindungsleitung und der Bierleitung angepaßte Größe. Der Querschnitt des Arbeitsanschlusses entspricht dem Leitungsquerschnitt.On both sides of the valve housing there is a two-part intermediate housing, which consists of a glass cylinder and a flange that carries the working connection. This flange is connected to a flange on the valve housing using several screws. The working connection has an external thread onto which the screw cap of a coupling which can be released by hand can be screwed, with the aid of which a connecting line can be coupled. The cleaning bodies designed as sponges have a size adapted to the connecting line and the beer line. The cross-section of the working connection corresponds to the line cross-section.

Bei dieser bekannten Reinigungsvorrichtung müssen die schwämmchenartigen Reinigungskörper jeweils nach dem Abkuppeln der Verbindungsleitung aus dem Inneren des Zwischengehäuses entfernt und an einen anderen Aufbewahrungsort gebracht werden. Beließe man sie im Zwischengehäuse, so würden sie nach dem Ablauf des Wassers austrocknen und könnten aus der Umgebungsluft Keime aufnehmen. Da die Entnahme durch den Arbeitsanschluß hindurch erfolgen muß, benötigt man je nach dem Quellzustand der Reinigungskörper ein spezielles Greifwerkzeug. Genauso schwierig ist die Entfernung von Schmutzteilchen, die von der Siebplatte am Kolben zurückgehalten worden sind. Ein weiterer Nachteil besteht darin, daß mit einem Umschaltventil lediglich Rohrleitungen des gleichen Durchmessers gereinigt werden können, weil der Arbeitsanschluß nur für einen bestimmten Leitungsquerschnitt paßt. Da aber häufig Schankleitungen unterschiedlichen Querschnitts vorhanden sind, z. B. Bierleitungen mit 7 bis 12 mm Durchmesser und Leitungen für alkoholfreie Getränke von 5 mm Durchmesser, benötigt man eine entsprechende Anzahl von Umschaltventilen.In this known cleaning device, the sponge-like cleaning bodies have to be removed from the interior of the intermediate housing after each uncoupling of the connecting line and brought to another storage location. If they were left in the intermediate housing, they would dry out after the water had run off and could absorb germs from the ambient air. Since the removal must take place through the work connection, a special gripping tool is required depending on the swelling condition of the cleaning bodies. It is just as difficult to remove dirt particles that have been retained by the sieve plate on the piston. Another disadvantage is that only a pipeline of the same diameter can be cleaned with a changeover valve, because the working connection only fits for a certain line cross section. But since tap lines of different cross-section are often available, e.g. B. beer lines with 7 to 12 mm diameter and lines for non-alcoholic beverages of 5 mm diameter, you need a corresponding number of switching valves.

Der Erfindung liegt die Aufgabe zugrunde, eine Reinigungsvorrichtung der eingangs beschriebenen Art anzugeben, bei der die mit der Entnahme der Reinigungskörper aus dem Zwischengehäuse zusammenhängenden Probleme reduziert oder beseitigt sind.The invention has for its object to provide a cleaning device of the type described in the introduction, in which the problems associated with the removal of the cleaning bodies from the intermediate housing are reduced or eliminated.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Zwischengehäuse einen Aufbewahrungsbehälter für Reinigungskörper bildet, der eine verschließbare Füllöffnung zum Einfüllen einer Aufbewahrungsflüssigkeit in seinem Innenraum aufweist und eine Sperre zum Aufrechterhalten eines über den ruhenden Reinigungskörpern liegenden Flüssigkeitsniveaus besitzt.This object is achieved in that the intermediate housing forms a storage container for cleaning bodies, which has a closable filling opening for filling a storage liquid in its interior and has a lock for maintaining a liquid level lying above the resting cleaning bodies.

Bei dieser Konstruktion ist im Normalfall überhaupt keine Entnahme der Reinigungskörper aus dem Zwischengehäuse erforderlich. Vielmehr ist das Zwischengehäuse als Aufbewahrungsbehälter ausgestaltet, in welchem die Reinigungskörper dauernd in einer Aufbewahrungsflüssigkeit liegen können, also von der Luft abgeschlossen sind. Die Aufbewahrungsflüssigkeit kann steril sein, so daß die Reinigungskörper bei der nächsten Nut- . zung keinerlei Keime in die Rohrleitungen einschleppen können. Die Reinigungskörper befinden sich in unmittelbarer Nähe des Umschaltventils und können daher auch nicht verloren gehen. Bei der nächsten Reinigungsphase werden die Reinigungskörper sofort von der Reinigungsfiüssigkeit in die Verbindungsleitungen mitgenommen. Der Verschluß der Füllöffnung ist vorzugsweise von Hand öffenbar.With this construction, it is normally not necessary to remove the cleaning bodies from the intermediate housing at all. Rather, the intermediate housing is designed as a storage container in which the cleaning bodies can be permanently in a storage liquid, that is to say they are sealed off from the air. The storage liquid can be sterile, so that the cleaning body at the next groove. no germs can be introduced into the pipes. The cleaning bodies are located in the immediate vicinity of the changeover valve and therefore cannot be lost. In the next cleaning phase, the cleaning bodies are immediately taken into the connecting lines by the cleaning liquid. The closure of the filling opening can preferably be opened by hand.

Eine andere Lösung der gestellten Aufgabe besteht darin, daß das Zwischengehäuse im Bereich seines größeren Querschnitts über eine von Hand lösbare Kupplung mit entsprechend großem Innendurchmesser mit dem Ventilgehäuse verbunden ist.Another solution to the problem is that the intermediate housing is connected to the valve housing in the region of its larger cross section via a coupling which can be released by hand and has a correspondingly large inner diameter.

Bei dieser Ausgestaltung wird die Entnahme der Reinigungskörper aus dem Zwischengehäuse dadurch erleichtert, daß dessen Innenraum sehr bequem über einen großen Öffnungsquerschnitt zugänglich ist. Die Reinigungskörper können einfach entnommen oder durch Umkippen ausgeschüttet werden. Durch Verwendung einer von Hand, also ohne Werkzeug, lösbare Kupplung im Bereich des größeren Querschnitts des Zwischengehäuses ist es gewährleistet, daß der Innenraum rasch zugänglich gemacht werden kann. Gleichzeitig bilden die Zwischengehäuse einen mit der Verbindungsleitung verbundenen Anpaßkopf, der sich beim Kupplungsvorgang wesentlich besser handhaben läßt als ein kleiner Endabschnitt der Verbindungsleitung. Da der Anpaßkopf der jeweiligen Verbindungsleitung fest zugeordnet sein kann, kann jede Verbindungsleitung, unabhängig von ihrem Durchmesser, an ein und dasselbe Umschaltventil angeschlossen werden. Die Reinigungsvorrichtung ist daher sehr vielseitig verwendbar und bequem zu handhaben.With this configuration, the removal of the cleaning bodies from the intermediate housing is facilitated in that the interior thereof is very conveniently accessible via a large opening cross section. The cleaning bodies can simply be removed or poured out by tipping over. By using a coupling that can be released by hand, that is to say without a tool, in the region of the larger cross section of the intermediate housing, it is ensured that the interior can be made quickly accessible. At the same time, the intermediate housing forms an adapter head connected to the connecting line can be handled much better during the coupling process than a small end section of the connecting line. Since the adapter head can be permanently assigned to the respective connection line, each connection line, regardless of its diameter, can be connected to one and the same changeover valve. The cleaning device is therefore very versatile and easy to use.

Man kann beide Alternativen auch in einer gemeinsamen Konstruktion anwenden, bei der das Zwischengehäuse unter dem Ventilgehäuse angeordnet ist; seine von der Kupplung umgebene Öffnung die Füllöffnung bildet und im Bereich des Arbeitsanschlusses ein Absperrventil vorgesehen ist. Wenn man das Absperrventil schließt und das Zwischengehäuse abkuppelt, kann man die Reinigungskörper im Zwischengehäuse aufbewahren und durch die Öffnung im Kupplungsbereich die Aufbewahrungsflüssigkeit so weit einfüllen, daß die Reinigungskörper bedeckt sind. Durch Anschluß mittels der Kupplung am Ventilgehäuse wird die Füllöffnung verschlossen. Beim nächsten Reinigungsvorgang werden daher die Reinigungskörper, nachdem das Absperrventil geöffnet und Reinigungsflüssigkeit zugeführt worden ist, automatisch mitgenommen.Both alternatives can also be used in a common construction, in which the intermediate housing is arranged under the valve housing; its opening surrounded by the coupling forms the filling opening and a shut-off valve is provided in the area of the working connection. When the shut-off valve is closed and the intermediate housing is uncoupled, the cleaning bodies can be stored in the intermediate housing and the storage liquid can be filled in through the opening in the coupling area to such an extent that the cleaning bodies are covered. The filling opening is closed by connection to the valve housing by means of the coupling. During the next cleaning process, the cleaning bodies are automatically taken along after the shut-off valve has been opened and cleaning fluid has been added.

Bei einer Vorrichtung, bei der das Vierwege-Umschaltventil einen verschiebbaren Kolben besitzt, der von den mit der Reinigungsflüssigkeit mitnehmbaren Reinigungskörpem umschaltbar ist, empfiehlt es sich, daß das Zwischengehäuse über die von Hand lösbare Kupplung direkt mit dem Ventilgehäuse verbunden ist und der Innendurchmesser der Kupplung mindestens dem Durchmesser der wirksamen Kolbenstimfläche entspricht. Nach Abnahme des Zwischenbehälters vom Ventilgehäuse lassen sich auch Schmutzteilchen an der Siebplatte des Kolbens leicht entfemen. Außerdem kann der Kolben des Umschaltventils mit dem Finger in die jeweils richtige Anfang-- sposition gestoßen werden.In the case of a device in which the four-way changeover valve has a displaceable piston which can be switched over by the cleaning bodies which can be carried along with the cleaning liquid, it is recommended that the intermediate housing is connected directly to the valve housing via the coupling, which can be released by hand, and the inner diameter of the coupling corresponds at least to the diameter of the effective piston face area. After removing the intermediate container from the valve housing, dirt particles can easily be removed from the sieve plate of the piston. In addition, the piston of the switch valve can be pushed into the correct starting position with your finger.

Insbesondere können einem Ventilgehäuse mindestens zwei Satz durch Zwischengehäuse gebildete Anpaßköpfe zugeordnet sein, deren Arbeitsanschlüsse unterschiedliche Durchmesser haben, im übrigen aber einander gleich sind. So können in einem Getränkekeller Verbindungsleitungen mit 7 mm Durchmesser und solche mit 10 mm Durchmesser vorrätig sein, die je mit entsprechenden Anpaßköpfen versehen sind. Dann können sowohl 7 mm-Rohrleitungen als auch 10 mm-Rohrleitungen mit ein und demselben Umschaltventil gereinigt werden.In particular, at least two sets of adapter heads formed by intermediate housings can be assigned to a valve housing, the working connections of which have different diameters, but are otherwise identical to one another. For example, connecting lines with a diameter of 7 mm and those with a diameter of 10 mm can be available in a beverage cellar, each of which is provided with corresponding adapter heads. Then both 7 mm pipes and 10 mm pipes can be cleaned with one and the same switching valve.

Mit besonderem Vorteil ist die von Hand lösbare Kupplung eine Schnellkupplung, die durch eine Relativbewegung des Zwischengehäuses mit Bezug auf das Ventilgehäuse schließbar und/oder lösbar ist. Das Zwischengehäuse läßt sich gut ergreifen, so daß die Schnellkupplung sicher betätigt werden kann. Dies ist wesentlich bequemer als das Bedienen der kleinen Schraubkappe bei der bekannten lösbaren Kupplung. Als Beispiel für eine solche Schnellkupplung wird auf eine Steckkupplung verwiesen, wie sie mit kleineren Abmessungen bei Gartenschläuchen üblich ist, wobei das Schließen der Kupplung durch axiales Einstecken und das Lösen durch axiales Verschieben eines Sicherungsringes erfolgt.The coupling which can be released by hand is particularly advantageously a quick coupling which can be closed and / or released by a relative movement of the intermediate housing with respect to the valve housing. The intermediate housing can be gripped well, so that the quick coupling can be actuated safely. This is much more convenient than operating the small screw cap in the known releasable coupling. As an example of such a quick coupling, reference is made to a plug-in coupling, as is customary for garden hoses with smaller dimensions, the coupling being closed by axial plugging in and loosening by axially displacing a locking ring.

Bei einer bevorzugten Ausführungsform ist die Schnellkupplung nach Art eines Bajonettverschlusses durch Drehen und axiales Verschieben des Zwischengehäuses gegenüber dem Ventilgehäuse schließbar bzw. lösbar. Hierbei braucht sowohl für das Schließen als auch für das Lösen nur noch das Zwischengehäuse bewegt zu werden.In a preferred embodiment, the quick coupling can be closed or released in the manner of a bayonet lock by rotating and axially displacing the intermediate housing relative to the valve housing. In this case, only the intermediate housing needs to be moved both for closing and for releasing.

Insbesondere kann die Ausbildung so getroffen sein, daß das Ventilgehäuse einen Flansch aufweist, der in Umfangsrichtung versetzte Ausschnitte hat, und das Zwischengehäuse durch die Ausschnitte passende, in Umfangsrichtung geöffnete Haken aufweist, die die verbleibenden Flanschabschnitte umgreifen. Hier genügt eine sehr kurze Axialbewegung und eine sehr kurze Drehbewegung.In particular, the design can be such that the valve housing has a flange which has cutouts offset in the circumferential direction, and the intermediate housing has matching hooks which are open in the circumferential direction and which encompass the remaining flange sections. A very short axial movement and a very short rotary movement are sufficient here.

Mit besonderem Vorteil ist das Zwischengehäuse mit dem Arbeitsanschluß einstückig ausgebildet. Insbesondere stören keine Zwischenbefestigungen, wenn das Zwischengehäuse mit der Hand ergriffen wird.The intermediate housing is particularly advantageously formed in one piece with the working connection. In particular, no intermediate fastenings interfere when the intermediate housing is gripped by hand.

Die von Hand lösbare Kupplung sollte nahe der Kolbenstimseite des Umschaltventils angeordnet sein. Hierdurch erhält der Anpaßkopf eine verhältnismäßig große axiale Länge, welche die Handhabung erleichtert.The clutch, which can be released by hand, should be located near the piston end of the changeover valve. This gives the adapter head a relatively large axial length, which makes handling easier.

Insbesondere sollte das Zwischengehäuse eine axiale Länge von mindestens 10 cm haben.In particular, the intermediate housing should have an axial length of at least 10 cm.

Günstig ist es ferner, wenn das Zwischengehäuse am Außenumfang Längsrippen trägt. Hierdurch kann das erforderliche Drehmoment von Hand besonders leicht aufgebracht werden.It is also expedient if the intermediate housing has longitudinal ribs on the outer circumference. As a result, the required torque can be applied particularly easily by hand.

Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten, bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen :

  • Fig. 1 einen Längsschnitt durch eine erfindungsgemäße Reinigungsvorrichtung,
  • Fig. 2 eine Seitenansicht einer geringfügig abgewandelten Ausführungsform,
  • Fig. 3 eine schematische Darstellung der Schnellkupplung in geöffnetem Zustand,
  • Fig. 4 die gleiche Darstellung in geschlossenem Zustand und
  • Fig. 5 die Reinigungsvorrichtung in Verbindung mit einer zu reinigenden Anlage und mit unterschiedlichen Anpaßköpfen.
The invention is explained below with reference to a preferred embodiment shown in the drawing. Show it :
  • 1 shows a longitudinal section through a cleaning device according to the invention,
  • 2 is a side view of a slightly modified embodiment,
  • 3 shows a schematic illustration of the quick coupling in the open state,
  • Fig. 4 shows the same representation in the closed state and
  • Fig. 5 shows the cleaning device in connection with a system to be cleaned and with different adapter heads.

Ein Umschaltventil 1 weist ein Ventilgehäuse 2 mit einem Zulaufanschluß 3 und einem Ablaufanschluß 4 auf. Im Gehäuse ist ein Kolben 5 verschiebbar, dessen Stirnseiten durch Siebplatten 6 bzw. 7 gebildet sind. Er weist zwei Ventilöffnungen 8 und 9 auf. Die Ventilöffnung 8 steht in der veranschaulichten Kolbenstellung mit einem Ringraum 10 und daher mit dem Ablaufanschluß 4 in Verbindung. Die Ventilöffnung 9 steht mit dem Kanal 11 im Inneren des Zulaufanschlusses 3 in Verbindung. Der Kolben weist eine Längsnut 12 auf, deren Enden als Anschlagsbegrenzung der Axialbewegung des Kolbens 5 dienen und deren ebener Boden der Stirnseite des Zulaufanschlusses 3 gegenüberliegt.A changeover valve 1 has a valve housing 2 with an inlet connection 3 and an outlet connection 4. A piston 5 is displaceable in the housing, the end faces of which are formed by sieve plates 6 and 7, respectively. It has two valve openings 8 and 9. The valve opening 8 is in the illustrated piston position with an annular space 10 and therefore with the drain port 4 in connection. The valve opening 9 is connected to the channel 11 in the interior of the inlet connection 3. The piston has a longitudinal groove 12, the ends of which serve as limit stops for the axial movement of the piston 5 and the flat bottom of which is the end face of the inlet connection ses 3 is opposite.

Am oberen und unteren Ende schließen an das Ventilgehäuse 2 aus durchsichtigem Kunststoff bestehende Zwischengehäuse 13 und 14 an, die einstückig mit je einem Arbeitsanschluß 15 bzw. 16 ausgeführt sind. Sie sind ständig mit einer entsprechenden Verbindungsleitung 17 bzw. 18 verbunden, beispielsweise mittels einer Klemmschelle 20 bzw. 19 (Fig. 2). Sie bilden daher für diese Verbindungsleitungen je einen Anpaßkopf zum Anschluß an das Ventilgehäuse 2. Zur besseren Handhabung sind die Zwischengehäuse außen mit Längsrippen 21 bzw. 22 versehen und haben eine Länge von mehr als 10 cm.At the upper and lower ends adjoin the valve housing 2 made of transparent plastic intermediate housing 13 and 14, which are made in one piece with a working connection 15 and 16, respectively. They are constantly connected to a corresponding connecting line 17 or 18, for example by means of a clamp 20 or 19 (Fig. 2). They therefore each form a matching head for connection to the valve housing 2 for these connecting lines. For better handling, the intermediate housings are provided on the outside with longitudinal ribs 21 and 22 and have a length of more than 10 cm.

Das obere Zwischengehäuse 13 ist mittels einer Schnellkupplung 23, das untere Zwischengehäuse 14 mittels einer Schnellkupplung 24 mit dem Ventilgehäuse 2 ohne Werkzeug lösbar verbunden. Der Ausbau dieser nach Art eines Bajonettverschlußes arbeitenden Kupplung ergibt sich aus den Fig. 2 bis 4. Am Ventilgehäuse 2 ist ein Radialflansch 25 vorgesehen, der einzelne in Umfangsrichtung versetzte Ausschnitte 26 besitzt, so daß Flanschabschnitte 27 verbleiben. Das Zwischengehäuse 14 hat Haken 28, die durch die Ausschnitte 26 passen und in Umfangsrichtung geöffnet sind. Infolgedessen kann das Zwischengehäuse 14 aus der geöffneten Stellung in Fig. 3 durch eine kurze Axialbewegung und eine anschließende kurze Drehbewegung in die Kupplungsstellung der Fig. 4 gebracht werden. Durch Rückdrehung und axiale Rückbewegung wird die Kupplung in gleicher Weise gelöst. Die Schnellkupplung 23 ist in gleicher Weise aufgebaut.The upper intermediate housing 13 is detachably connected to the valve housing 2 by means of a quick coupling 23, the lower intermediate housing 14 by means of a quick coupling 24 without tools. The expansion of this coupling, which works in the manner of a bayonet lock, is shown in FIGS. 2 to 4. A radial flange 25 is provided on the valve housing 2, which has individual cutouts 26 offset in the circumferential direction, so that flange sections 27 remain. The intermediate housing 14 has hooks 28 which fit through the cutouts 26 and are open in the circumferential direction. As a result, the intermediate housing 14 can be brought from the open position in FIG. 3 by a short axial movement and a subsequent brief rotary movement into the coupling position of FIG. 4. The coupling is released in the same way by turning back and moving axially back. The quick coupling 23 is constructed in the same way.

Um Leckverluste zu vermeiden, ist der Kolben 5 durch zwei Dichtringe 29 und 30 gegen das Gehäuse 2 abgedichtet. Ferner werden beim Spannen der Kupplungen 23 und 24 Dichtringe 31 und 32 gegen eine Ringfläche des Ventilgehäuses 2 gedrückt.In order to avoid leakage losses, the piston 5 is sealed against the housing 2 by two sealing rings 29 and 30. Furthermore, when the couplings 23 and 24 are tightened, sealing rings 31 and 32 are pressed against an annular surface of the valve housing 2.

Das untere Zwischengehäuse 14 in Fig. 1 weist ein Absperrventil 33 mit einer um eine Achse 34 schwenkbaren Ventilklappe 35 auf, die in die gestrichelt gezeichnete Stellung 36 verschwenkt werden kann. Bei geschlossenem Absperrventil 33 können die üblichen, in der Form von Schwammbällchen vorliegenden Reinigungskörper 37 in den Innenraum 38 des Zwischengehäuses 14 gebracht und dort aufbewahrt werden. Zu diesem Zweck wird das Zwischengehäuse 14 vom Ventilgehäuse 2 gelöst und durch die sich dann ergebende große Öffnung 39 wird eine sterile Aufbewahrungsflüssigkeit bis zu einer Höhe eingefüllt, daß die Reinigungskörper 37 vollständig bedeckt sind. Beim nächsten Reinigungsvorgang braucht lediglich das Absperrventil 33 geöffnet zu werden. Die Reinigungskörper 37 werden dann von der Reinigungsflüssigkeit automatisch in den Kreislauf mitgenommen. Das Zwischengehäuse 14 dient daher als Aufbewahrungsbehälter für die Reinigungskörper.The lower intermediate housing 14 in FIG. 1 has a shut-off valve 33 with a valve flap 35 which can be pivoted about an axis 34 and which can be pivoted into the position 36 shown in broken lines. When the shut-off valve 33 is closed, the usual cleaning bodies 37, which are in the form of sponge balls, can be brought into the interior 38 of the intermediate housing 14 and stored there. For this purpose, the intermediate housing 14 is detached from the valve housing 2 and a sterile storage liquid is poured in through the resulting large opening 39 to a level such that the cleaning bodies 37 are completely covered. In the next cleaning process, the shut-off valve 33 only needs to be opened. The cleaning bodies 37 are then automatically taken into the circuit by the cleaning liquid. The intermediate housing 14 therefore serves as a storage container for the cleaning bodies.

Es ist ferner ersichtlich, daß nach Abnehmen der Zwischengehäuse 13 und 14 das Umschaltventil bequem zugänglich ist. Insbesondere kann der Kolben in die jeweils richtige Ausgangsstellung von Hand verschoben werden. Auch der Innenraum der Zwischengehäuse 13 und 14 läßt sich leicht reinigen. Die Reinigungskörper 37 können bequem erfasst oder durch Umkippen herausgenommen werden.It can also be seen that after removing the intermediate housing 13 and 14, the changeover valve is easily accessible. In particular, the piston can be moved into the correct starting position by hand. The interior of the intermediate housing 13 and 14 can also be easily cleaned. The cleaning bodies 37 can be gripped comfortably or removed by tipping over.

In Fig. 5 ist veranschaulicht, daß die Verbindungsleitungen 17 und 18 an ihrem freien Ende je eine Kupplung 40 bzw. 41 aufweisen, über die sie mit je einer Schankleitung 42 bzw. 43 verbindbar sind.5 illustrates that the connecting lines 17 and 18 each have a coupling 40 and 41 at their free end, via which they can be connected to a dispensing line 42 and 43, respectively.

Die beiden anderen Enden der Schankleitungen sind über einen Schlauchabschnitt 44 miteinander verbunden, so daß sich ein Rohrleitungskreislauf ergibt. Wenn sich das Umschaltventil 1 im Getränkekeller befindet, kann der Schlauchabschnitt 44 zwischen zwei Zapfhähnen am Schanktisch angeordnet werden. In Fig. 5 ist im Umschaltventil 1 ein erster Satz von als Anpaßköpfen dienenden Zwischengehäusen 13 und 14 mit zugehörigen Verbindungsleitungen 17 und 18 sowie ein zweiter Satz von als Anpaßköpfen dienenden Zwischengehäusen 113 und 114 mit zugehörigen Verbindungsleitungen 117 und 118 zugeordnet. Die Verbindungsieitungen 117 und 118 haben einen größeren Durchmesser als die Verbindungsleitungen 17 und 18. Demzufolge sind auch die Arbeitsanschlüsse 115 bzw. 116 der Zwischengehäuse 113 und 114 größer als die Arbeitsanschlüsse 15 und 16 bei den Zwischengehäusen 13 und 14. Im übrigen sind die Zwischengehäuse aber einander gleich. Mit Hilfe der Verbindungsleitungen 117 und 118 kann unter Verwendung größerer Reinigungskörper ein Rohrleitungssystem mit größerem Innenquerschnitt gereinigt werden.The other two ends of the dispensing lines are connected to one another via a hose section 44, so that a pipeline circuit results. If the switch valve 1 is in the beverage cellar, the hose section 44 can be arranged between two taps on the bar table. In FIG. 5, a first set of intermediate housings 13 and 14 serving as adapter heads with associated connecting lines 17 and 18 and a second set of intermediate housings 113 and 114 serving as adapter heads with associated connecting lines 117 and 118 are assigned in changeover valve 1. The connecting lines 117 and 118 have a larger diameter than the connecting lines 17 and 18. Accordingly, the working connections 115 and 116 of the intermediate housings 113 and 114 are larger than the working connections 15 and 16 for the intermediate housings 13 and 14. Otherwise, the intermediate housings are equal to each other. With the help of the connecting lines 117 and 118, a pipe system with a larger internal cross section can be cleaned using larger cleaning bodies.

Das Absperrventil 33 kann auch ein Absperrhaken sein. Es kann getrennt vom Zwischengehäuse 14 ausgebildet und mit dem Arbeitsanschluß 18 verbunden sein.The shut-off valve 33 can also be a shut-off hook. It can be formed separately from the intermediate housing 14 and connected to the working connection 18.

Claims (12)

1. Device for the cleaning of pipelines, especially tapping pipes, by means of cleaning bodies, with a four-way change-over valve which selectively connects an inflow connection for the supply of cleaning fluid to one of two working connections and the other particular working connection to a flow-off connection, an intermediate housing extending between the valve housing and at least one of the working connections, characterized in that the intermediate housing (14) forms a storage container for the cleaning bodies (37), which has a closable filling orifice (39) for introducing a storage fluid into its interior (38) and which possesses a barrier (33) for maintaining a fluid level lying above the stationary cleaning bodies.
2. Device for the cleaning of pipelines, especially tapping pipes, by means of cleaning bodies, with a four-way change-over valve which selectively connects an inflow connection for the supply of cleaning fluid to one of two working connections and the other particular working connection to a flow-off connection, there extending between the valve housing and at least one of the working connections an intermediate housing which leads over from a small cross-section corresponding to the working connection to a larger cross-section, especially according to Claim 1, characterized in that the intermediate housing (13, 14) is connected, in the region of its larger cross-section, to the valve housing (2) via a manually releasable coupling (23, 24) of correspondingly large inside diameter.
3. Device according to Claims 1 and 2, characterized in that the intermediate housing (14) is arranged under the valve housing (2), its orifice surrounded by the coupling (24) forms the filling orifice (39) and a shutoff valve (33) is provided in the region of the working connection (16).
4. Device in which the four-way change-over valve possesses a displaceable piston, reversible by the cleaning bodies which can be carried along by the cleaning fluid, according to Claim 2 or 3, characterized in that the intermediate housing (13, 14) is connected directly to the valve housing (2) via the manually releasable coupling (23, 24), and the inside diameter of the coupling corresponds at least to the diameter of the effective piston end face.
5. Device according to one of Claims 2 to 4, characterized in that a valve housing (2) is assigned at least two sets of adaptor heads which are formed by intermediate housings (13, 14; 113, 114), the working connections (15, 16; 115, 116) of which have different diameters, but are otherwise identical to one another.
6. Device according to one of Claims 2 to 5, characterized in that the manually releasable coupling (23, 24) is a quick-acting coupling which is closable and/or releasable as a result of a relative movement of the intermediate housing (13, 14) in relation to the valve housing (2).
7. Device according to Claim 6, characterized in that the quick-acting coupling (23, 24) is closable and releasable in the manner of a bayonet fastening as a result of the rotation and axial displacement of the intermediate housing (13, 14) relative to the valve housing (2).
8. Device according to Claim 7, characterized in that the valve housing possesses a flange (25) having cutouts (26) offset in the circumferential direction, and the intermediate housing (13, 14) possesses hooks (28) which fit through the cutouts and are opened in the circumferential direction and which engage round the remaining flange portions.
9. Device according to one of Claims 1 to 8, characterized in that the intermediate housing (13, 14) is made in one piece with the working connection (15, 16).
10. Device according to one of Claims 2 to 9, characterized in that the manually releasable coupling (23, 24) is arranged near the piston end face of the change-over valve.
11. Device according .to one of Claims 1 to 10, characterized in that the intermediate housing (13, 14) has an axial length of at least 10 cm.
12. Device according to one of Claims 1 to 11, characterized in that the intermediate housing carries longitudinal ribs (21, 22) on the outer circumference.
EP84115793A 1983-12-24 1984-12-19 Pipe system cleaning device, especially for tapping conduits Expired EP0147784B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84115793T ATE47053T1 (en) 1983-12-24 1984-12-19 DEVICE FOR CLEANING PIPELINES, ESPECIALLY CHANGING PIPELINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3347004 1983-12-24
DE3347004A DE3347004C1 (en) 1983-12-24 1983-12-24 Device for cleaning pipelines, in particular tap lines

Publications (3)

Publication Number Publication Date
EP0147784A2 EP0147784A2 (en) 1985-07-10
EP0147784A3 EP0147784A3 (en) 1988-07-20
EP0147784B1 true EP0147784B1 (en) 1989-10-11

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ID=6218090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115793A Expired EP0147784B1 (en) 1983-12-24 1984-12-19 Pipe system cleaning device, especially for tapping conduits

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US (1) US4607410A (en)
EP (1) EP0147784B1 (en)
AT (1) ATE47053T1 (en)
CA (1) CA1257057A (en)
DE (1) DE3347004C1 (en)
DK (1) DK158497C (en)

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Publication number Priority date Publication date Assignee Title
ES2051327T3 (en) * 1988-07-21 1994-06-16 Friedrich Bersch PIPE CLEANING DEVICE, IN PARTICULAR LIQUID DISPENSING PIPES.
DE3824852A1 (en) * 1988-07-21 1990-01-25 Friedrich Bersch METHOD AND DEVICE FOR CLEANING PIPELINES
DE3901829A1 (en) * 1989-01-23 1990-08-02 Friedrich Bersch DEVICE FOR CLEANING PIPELINES
DE3917488C1 (en) * 1989-05-30 1990-06-07 Friedrich 5401 Halsenbach De Bersch
DE3928194A1 (en) * 1989-08-25 1991-02-28 Breitwisch Josef & Co Four-way reversal valve for pipe cleaning devices - incorporates control piston guided in control sleeve
DE4036083C2 (en) * 1990-04-05 1994-06-16 Friedrich Bersch Dosing device
DE9210436U1 (en) * 1992-08-05 1992-09-24 Bersch, Friedrich, 5401 Halsenbach Device for cleaning pipes
DE59309795D1 (en) * 1992-10-22 1999-10-28 Kaltenbach & Voigt Device for cleaning and maintaining medical or dental instruments
US5890531A (en) * 1995-04-18 1999-04-06 Noram Engineering And Constructors Ltd. Apparatus for the self-cleaning of process tubes
DE10056253C2 (en) * 2000-11-14 2003-07-31 Beviclean Gmbh Cleaning device for beverage lines
US7368139B1 (en) * 2002-03-15 2008-05-06 Bronnert Herve X Aseptic processing system for fruit filling
US6802909B1 (en) 2003-04-24 2004-10-12 Doyle J. Crenshaw Method for improving the operation of a pipeline by employing soap pigs
NL1032098C2 (en) * 2006-06-30 2008-01-02 Heineken Supply Chain Bv Tapping device, beverage container, coupling device and method with cleaning element.
US10012318B2 (en) * 2015-03-24 2018-07-03 Parker-Hannifin Corporation Shuttle valve stabilization through pressure differential and shuttle valve with hollow poppet with weep hole

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Publication number Priority date Publication date Assignee Title
DE301816C (en) *
US1165455A (en) * 1914-04-09 1915-12-28 George Schlemmer Hose or like conduit cleaning device.
US2074187A (en) * 1934-12-22 1937-03-16 Pichler Gustav Beer coil cleaner
US2096714A (en) * 1935-04-29 1937-10-26 Brass Products Company Beer coil cleaner
DE1782136C3 (en) * 1968-07-23 1979-01-25 Friedrich 5401 Halsenbach Bersch Device for cleaning pipes, in particular beer pipes
NL7505999A (en) * 1975-05-12 1976-11-23 Louis Oostwegel Handelende Ond DEVICE FOR CLEANING BEER PIPES.

Also Published As

Publication number Publication date
EP0147784A2 (en) 1985-07-10
EP0147784A3 (en) 1988-07-20
DK605784A (en) 1985-06-25
US4607410A (en) 1986-08-26
CA1257057A (en) 1989-07-11
ATE47053T1 (en) 1989-10-15
DE3347004C1 (en) 1985-06-05
DK605784D0 (en) 1984-12-18
DK158497B (en) 1990-05-28
DK158497C (en) 1990-10-29

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