DE4119947A1 - Removal of deposits from water pipes - by blowing mixture of water and gravel through pipes by compressed air - Google Patents

Removal of deposits from water pipes - by blowing mixture of water and gravel through pipes by compressed air

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Publication number
DE4119947A1
DE4119947A1 DE4119947A DE4119947A DE4119947A1 DE 4119947 A1 DE4119947 A1 DE 4119947A1 DE 4119947 A DE4119947 A DE 4119947A DE 4119947 A DE4119947 A DE 4119947A DE 4119947 A1 DE4119947 A1 DE 4119947A1
Authority
DE
Germany
Prior art keywords
water
compressed air
pipes
granules
gravel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE4119947A
Other languages
German (de)
Inventor
Joachim Pflamm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE4119947A priority Critical patent/DE4119947A1/en
Publication of DE4119947A1 publication Critical patent/DE4119947A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Cleaning In General (AREA)

Abstract

Deposits on the inside surfaces of water pipes are removed by the simultaneous application of streams of water, compressed air and granular material consisting of sharp edged grains. The granular material (9) such as gravel is held in a container (9) which is connected on both sides to stop valves (7) and (10). A compressed air supply is connected to a point upstream of the first stop valve (7) and to a point downstream of the second stop valve (10) which is connected to the water supply pipe (5) downstream of the stop cock (3). The opening of the stop cock (3) is adjusted so that a mixture of air and water flows out of the pipe (5) which is then connected to the pipes which are to be cleaned. USE/ADVANTAGE - Removal of scale from water pipes without using an acid.

Description

In den Wasserleitungen setzen sich, besonders an den Verbindungs­ stellen, natürliche Ablagerungen ab, die im Laufe der Jahre zum Verschließen der Wasserleitungen führen. Die Beseitigung solcher Ablagerungen wird bislang mit chemischen 9 umweltunfreundlichen Mitteln - beispielweise Säuren - durchgeführt; oder es werden neue Rohre installiert, weil die Gefahr besteht, daß die Säure die Wasserleitungen angreift. Der vorliegenden Erfindung liegt die Aufgabe zugrunde Ablagerungen aus Wasserleitungsanlagen zu ent­ fernen. Die Erfindung erreicht die durch die in den Patentan­ sprüchen 1 bis 7 angegebenen Merkmale.Sit down in the water pipes, especially at the connections turn off, natural deposits that over the years to Close the water pipes. The elimination of such So far, chemical 9 is environmentally unfriendly Agents - for example acids - performed; or there will be new ones Pipes installed because there is a risk that the acid Water pipes attack. The present invention is the Task based ent to remove deposits from water supply systems distant. The invention achieves that through the in the patent say 1 to 7 characteristics.

Die Erfindung wird im folgenden anhand der Fig. 1 und 2 näher beschrieben. Es zeigenThe invention is described below with reference to FIGS. 1 and 2. Show it

Fig. 1 ein Prinzip der Installation der Einrichtung zur Durchführung des Verfahrens Fig. 1 shows a principle of installation of the device for performing the method

Fig. 2 eine Variante der Installation bei öffentlichen Wasser­ versorgungsanlagen. Fig. 2 shows a variant of the installation in public water supply systems.

Gemäß der Erfindung wird gleichzeitig Wasser, Druckluft und ein entsprechend gekörntes Granulat aus Kies oder gebrochener Schlacke mit einer Körnung von vorzugsweise 0,5 mm-2 mm in die Wasser­ leitung eingeleitet. Es liegt selbstverständlich im Rahmen der Erfindung mit feiner oder gröberer Körnung des Granulats zu arbeiten, je nach Verschmutzungsgrad bzw. Durchmesser der Rohrleitungen. Es kann mit einer feinen Körnung begonnen und je nach Rohrdurchmesser kann mit einem gröberen Granulat abgeschlossen werden. Bei eigener Wasserversorgung geschieht dieses gemäß Fig. 1 hinter dem Druckkessel (1) und bei Stadtwasserversorgung hinter der Sicherheitsgruppe (2) gemäß Fig. 2.According to the invention, water, compressed air and a correspondingly granular granulate of gravel or broken slag with a grain size of preferably 0.5 mm-2 mm are simultaneously introduced into the water line. It is of course within the scope of the invention to work with fine or coarser granules of the granulate, depending on the degree of contamination or the diameter of the pipes. It can start with a fine grain size and depending on the pipe diameter can be finished with a coarser granulate. When this happens own water supply of FIG. 1 after the pressure vessel (1) and city water supply after the security group (2) of FIG. 2.

Zunächst werden in Fig. 1 das Drosselventil (3) und die Regler­ gruppe (4) so eingestellt, daß an der Wasseraustrittsstelle (5) Wasser und Druckluft gemeinsam entweichen. Ein Rückschlag­ ventil (6) verhindert, daß Wasser in die Druckluftanlage fließt. Dabei sollten grundsätzlich Amaturen vorher entfernt werden. Danach wird das Kegelabsperrventil (7) geöffnet und setzt den mit Granulat (8) gefüllten Behälter (9) unter Druck, der etwa 1 atü über dem Druck hinter der Reglergruppe (4) sein sollte. Nun wird das Kegelabsperrventil (10) intervallmäßig in Zeitabständen von ca. 5 Sekunden Öffnungszeit und ca. 15 Sekunden Schließzeit betätigt und somit das Granulat (8) zum Zerschlagen der Ablagerun­ gen in die Wasserleitung eingebracht. An der Wasseraustrittsstelle (5) wird gleichzeitig darauf geachtet, ob eine Verstopfung in der Wasserleitung stattfindet. Sollte eine Verstopfung eintreten, darf kein weiteres Granulat (8) eingeleitet werden. Die Verstopfung kann durch kurzzeitiges Aufbauen eines Gegendruckes mittels Druckluft an der Wasseraustrittsstelle (5) beseitigt werden. Der Verschmutzungsgrad bestimmt die Zeitdauer der Reinigung.First, the throttle valve ( 3 ) and the controller group ( 4 ) are set in Fig. 1 so that water and compressed air escape together at the water outlet point ( 5 ). A check valve ( 6 ) prevents water from flowing into the compressed air system. In principle, fittings should be removed beforehand. The cone shut-off valve ( 7 ) is then opened and pressurizes the container ( 9 ) filled with granulate ( 8 ), which should be approximately 1 atm above the pressure downstream of the regulator group ( 4 ). Now the cone shut-off valve ( 10 ) is actuated at intervals of approx. 5 seconds opening time and approx. 15 seconds closing time, thus introducing the granulate ( 8 ) into the water pipe to break up the deposits. At the water outlet point ( 5 ), attention is also paid to whether there is a blockage in the water pipe. If blockage occurs, no further granules ( 8 ) may be introduced. The blockage can be removed by briefly building up a back pressure using compressed air at the water outlet point ( 5 ). The degree of soiling determines the duration of the cleaning.

Claims (7)

1. Verfahren zur Beseitigung von Ablagerungen in Wasserleitungen, dadurch gekennzeichnet, daß gleichzeitig Wasser, Druckluft und ein gekörntes Granulat oder dergleichen in die Wasserleitung eingebracht werden und durch die durch Ablagerung verengten Wasserleitungsrohre gepreßt werden.1. A method for removing deposits in water pipes, characterized in that water, compressed air and a granular granulate or the like are introduced into the water pipe at the same time and are pressed through the narrowed by water pipe pipes. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein Granulat aus Kies oder gebrochener Schlacke verwendet wird.2. The method according to claim 1, characterized in that a Granulate from gravel or broken slag is used. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß Granulat mit einer Körnung bis 3 mm verwendet wird.3. The method according to claim 1 or 2, characterized in that granules with a grain size of up to 3 mm are used. 4. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß Granulat mit einer Körnung von 0,5 mm bis 2 mm verwendet wird.4. The method according to claim 5, characterized in that Granules with a grain size of 0.5 mm to 2 mm are used. 5. Verfahren nach einen der Ansprüche 1-4, dadurch gekenn­ zeichnet, daß das Granulat intervallweise zugeführt wird.5. The method according to any one of claims 1-4, characterized records that the granules are fed at intervals. 6. Verfahren nach einem der Ansprüche 1-4, dadurch gekenn­ zeichnet, daß das Granulat kontinuierlich zugeführt wird.6. The method according to any one of claims 1-4, characterized records that the granules are fed continuously. 7. Einrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß in der Wasserzuleitung zur ver­ stopften Rohrleitung ein Drosselventil (3) vorgesehen ist, daß ein druckdichter Granulatbehälter (9) mit einer Drucklufteinlaßöffnung und einer Ausgangsöffnung vorgesehen ist, daß die Drucklufteinlaßöffnung über ein erstes Absperrven­ til (7) mit einer Druckluftquelle verbunden ist, daß die Auslaßöffnung über ein zweites Absperrventil (10) mit dem Eingang der Wasserzuleitung zur verstopften Rohrleitung verbunden ist und daß eine Reglergruppe (4) vorgesehen ist, deren Eingang an der Druckluftquelle angeschlossen ist und deren Ausgang über ein Rückschlagventil (6) mit dem Eingang der verstopften Rohrleitung verbunden ist, wobei Drosselventil (3) und Reglergruppe (4) so einstellbar sind, daß Wasser und Druck­ luft gleichzeitig in die verstopfte Rohrleitung einfließen.7. Device for performing the method according to claim 1, characterized in that a throttle valve ( 3 ) is provided in the water supply line to the clogged pipeline, that a pressure-tight granulate container ( 9 ) is provided with a compressed air inlet opening and an outlet opening that the compressed air inlet opening a first shut-off valve ( 7 ) is connected to a compressed air source, that the outlet opening is connected via a second shut-off valve ( 10 ) to the inlet of the water supply to the blocked pipe and that a controller group ( 4 ) is provided, the input of which is connected to the compressed air source and the output of which is connected via a check valve ( 6 ) to the inlet of the blocked pipeline, the throttle valve ( 3 ) and control group ( 4 ) being adjustable so that water and compressed air simultaneously flow into the blocked pipeline.
DE4119947A 1991-06-18 1991-06-18 Removal of deposits from water pipes - by blowing mixture of water and gravel through pipes by compressed air Withdrawn DE4119947A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4119947A DE4119947A1 (en) 1991-06-18 1991-06-18 Removal of deposits from water pipes - by blowing mixture of water and gravel through pipes by compressed air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4119947A DE4119947A1 (en) 1991-06-18 1991-06-18 Removal of deposits from water pipes - by blowing mixture of water and gravel through pipes by compressed air

Publications (1)

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DE4119947A1 true DE4119947A1 (en) 1992-12-24

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634229A1 (en) * 1993-07-12 1995-01-18 Promotec AG Method, assembly and apparatus for internal cleaning and coating of pipelines
DE4420579A1 (en) * 1994-06-03 1995-12-07 Meyer & John Gmbh & Co Method for cleaning pipelines
WO2000029136A1 (en) * 1998-11-18 2000-05-25 Taifun Engineering Oy Ltd. Method and apparatus for cleaning industrial pipe systems
CN100396613C (en) * 2005-12-19 2008-06-25 贵阳铝镁设计研究院 Process for preventing precipitating and scab at slurry tank bottom and apparatus thereof
CN103628913A (en) * 2013-10-31 2014-03-12 冀中能源峰峰集团有限公司 Automatic cleaning system and method of dual-redundancy paste filling pipes

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634229A1 (en) * 1993-07-12 1995-01-18 Promotec AG Method, assembly and apparatus for internal cleaning and coating of pipelines
DE4420579A1 (en) * 1994-06-03 1995-12-07 Meyer & John Gmbh & Co Method for cleaning pipelines
WO2000029136A1 (en) * 1998-11-18 2000-05-25 Taifun Engineering Oy Ltd. Method and apparatus for cleaning industrial pipe systems
US6502270B2 (en) 1998-11-18 2003-01-07 Taifun Engineering Oy Ltd. Method and apparatus for cleaning industrial pipe systems
US6645310B2 (en) 1998-11-18 2003-11-11 Taifun Engineering Oy Ltd. Method for cleaning industrial pipe systems
CN100396613C (en) * 2005-12-19 2008-06-25 贵阳铝镁设计研究院 Process for preventing precipitating and scab at slurry tank bottom and apparatus thereof
CN103628913A (en) * 2013-10-31 2014-03-12 冀中能源峰峰集团有限公司 Automatic cleaning system and method of dual-redundancy paste filling pipes

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