EP0260649B1 - Méthode pour le nettoyage intérieur de systèmes de tubes ramifiés et/ou d'ensembles, ainsi que dispositif pour la réalisation de cette méthode - Google Patents

Méthode pour le nettoyage intérieur de systèmes de tubes ramifiés et/ou d'ensembles, ainsi que dispositif pour la réalisation de cette méthode Download PDF

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Publication number
EP0260649B1
EP0260649B1 EP87113441A EP87113441A EP0260649B1 EP 0260649 B1 EP0260649 B1 EP 0260649B1 EP 87113441 A EP87113441 A EP 87113441A EP 87113441 A EP87113441 A EP 87113441A EP 0260649 B1 EP0260649 B1 EP 0260649B1
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EP
European Patent Office
Prior art keywords
units
cleaned
conduits
cleaning medium
cleaning
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 - Lifetime
Application number
EP87113441A
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German (de)
English (en)
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EP0260649A3 (en
EP0260649A2 (fr
Inventor
Engelbert Krifft
Roger Hanraths
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.)
Wegener Paul
Original Assignee
Wegener Paul
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 Wegener Paul filed Critical Wegener Paul
Priority to AT87113441T priority Critical patent/ATE73696T1/de
Publication of EP0260649A2 publication Critical patent/EP0260649A2/fr
Publication of EP0260649A3 publication Critical patent/EP0260649A3/de
Application granted granted Critical
Publication of EP0260649B1 publication Critical patent/EP0260649B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B08B9/032—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
    • B08B9/0323—Arrangements specially designed for simultaneous and parallel cleaning of a plurality of conduits

Definitions

  • the invention relates to a method for cleaning the inside of branched pipelines and the associated hollow units, in which several lines and units are flushed through from a common cleaning medium supply in parallel with a liquid cleaning medium, and to a device for carrying out this method.
  • Such a method is known from document EP-A-0 093 046, which is used to carry out a leak test and to clean a plurality of pipelines.
  • several pipelines are filled together in a parallel circuit, pressurized, subjected to a tightness check, then rinsed, cleaned, emptied and dried.
  • the known method is not intended and suitable for removing deposits on the inner walls of pipelines and associated assemblies.
  • the pipelines to be cleaned with the method in question are, for example, water supply networks in the interior of buildings or also heating pipe or radiator systems which are designed to carry water.
  • the invention has for its object to provide a method and a device of the type mentioned, which ensures that a safe, uniform wetting and uniform exposure time of the cleaning medium can be achieved at all points of the connected system and the hollow units with the least possible effort .
  • the flow rate of each line and each unit is set so that a cleaning effect which takes account of the respective narrowing cross section caused by deposits is achieved.
  • the adjustment options for the flow rates in each line and each unit mean that the cleaning medium flows through each line and each unit, since it can be ruled out that the cleaning medium can find a way of "least resistance".
  • the washing medium would only circulate in the basement and possibly on the ground floor, and the proportion of the flow rate of the cleaning medium would become less and less on the upper floors.
  • the method according to the invention there is the possibility of throttling the flow, for example in the basement and on the ground floor, in such a way that, for example, with the pressure of the cleaning medium remaining constant, it is forcibly achieved that cleaning medium also flows through the pipes and units on the upper floors.
  • the setting is expediently carried out so that the flow rate of the cleaning medium is uniform in all branched areas, so that the cleaning medium can work evenly or sufficiently in all areas to be cleaned.
  • Another advantage is that it is not necessary to rinse the individual pipe sections and units individually, but that only a single process, which covers all areas at the same time, can be carried out, which reduces both the effort and an excessive load on individual sections or Areas of piping and aggregates.
  • Another advantage is that the solution according to the invention prevents aggressive cleaning medium from leaking out due to the constant changing of connections and frequent filling of cleaning medium and by flushing cleaned line sections and thus damage, for example, to floors. Like. caused.
  • Another advantage of the invention is that, compared to the prior art, less aggressive and therefore less environmentally friendly and less harmful cleaning media can be used, because the observable and controllable uniform flow in all areas can achieve a good cleaning effect even with less aggressive cleaning media , so that it is not necessary to use "extremely aggressive cleaning media" for the sake of speed.
  • a pressure difference of the cleaning medium is established that an all-round use of the inside of the pipes and the units with the cleaning medium is generated.
  • This can be achieved, for example, by setting up a throttling point in the area of the cleaning medium outflow, by means of which such a pressure difference between the cleaning medium supply and the cleaning medium outflow can be set that the entire system, i.e. the branched pipelines and units, is evenly flooded with cleaning medium on the inside and as a result, uniform wetting is achieved over the entire cross-section and thus a uniform and complete action of the cleaning medium is achieved.
  • Air bubbles in the system which could prevent the cleaning medium from acting in places, are "transported away" in the invention, so to speak.
  • the liquid cleaning medium is directed against the flow of use through the lines and units to be cleaned.
  • “Usage flow” means the direction of flow in which the drinking water, the heating water or the like flows.
  • the pipe cross-sections go to the points of use (e.g. water taps) narrow down. If the direction of flow is reversed for the cleaning process, the result is that larger particles that come loose are rinsed into a widening tube area, so that the risk of clogging by loosened particles is thereby kept low.
  • the permanent possibility of observing the flow rate of each pipeline and each unit in comparison to the total flow rate can also be used, for example, to determine whether a pipe and a hollow unit connected to it have been clogged by dissolved particles during the flushing process.
  • mechanical intervention is of course also possible in such a case.
  • Another advantage of the invention is that localization of a possible blockage point is readily possible by observing the flow rates on the corresponding display devices.
  • the invention further relates to a device for performing the method according to the invention.
  • a device for cleaning a pipeline system for the transport of liquids, in particular beer is known, in which a storage container for a cleaning medium is provided.
  • the storage container for the cleaning medium is connected to the piping system via valves. It can thus be achieved that the cleaning agent instead of the liquid flows through partial sections of the piping system at a certain valve position.
  • the known device is not provided and not suitable.
  • a storage container for the cleaning medium is provided in a known manner.
  • the storage container in cleaning operation is connected via a main line which can be pressurized to at least one distributor device to which the lines and units to be cleaned are connected in the operating state.
  • devices for measuring the pressure and the flow rate in the main line are provided.
  • Devices for measuring and regulating the respective flow rate in each of the pipelines to be cleaned and each of the assemblies to be cleaned are provided between the distributor device and the line and unit connections.
  • adjustable back pressure holding devices are provided at the end of the lines and units to be cleaned. Backpressure devices of this type are used to be able to set such a pressure difference between the cleaning medium supply and the cleaning medium outlet that an all-round wetting of the inside of the pipes and the units with the cleaning medium is produced. Furthermore, it can be provided according to the invention that the pipelines and units to be cleaned open into the storage container via one or more intermediate lines. A particularly economical mode of operation is achieved by the cleaning medium circuit achieved in this way.
  • the distributor device has a main distribution and that several downstream sub-distributors are provided, on or behind which (in the flow direction) the devices for measuring and regulating the flow rates and, if appropriate, for measuring the pressures in each of the cleaning lines and each of the aggregates to be cleaned are provided.
  • This has the advantage that only one connecting hose is required between the main distribution and the individual sub-distributions, and that a problem-free assignment of the flow rate measuring device and the pipe section and unit is also possible.
  • the device according to the invention is easy to control and user-friendly, since the operating personnel do not come into direct contact with the cleaning medium itself due to the "closed" design.
  • Another advantage is that the flow rate measuring devices can be used to objectively demonstrate whether or that the cleaning process was successful.
  • Another advantage of the invention is that it is now easily possible to produce protocols for the individual stages of the process, which can be used for evidence or the like if necessary. It is easily possible to use remote-controlled flow meters so that the entire cleaning process can be controlled from a central point. In the same way, there is also the possibility of logs on the respective flow rates, pressure conditions and. The like. Automatically and possibly also to be displayed and recorded continuously, both in digital and in analog form.
  • a basement 2 In a building 1, a basement 2, a ground floor 3 and a first floor 4 are shown. The individual floors are connected via stairs 5, 6 and 7, which are schematically designated by 5. The ground is marked 8 and the house entrance 9.
  • the water supply line to the building 1 has a main connection 10, a water meter 11 and a distributor 12, from where risers 13 lead to the individual floors.
  • the risers each open into horizontal supply pipes 13a, which lead to consumption points schematically designated 14. This can be, for example, tapping points.
  • the respective wall connection points i.e. the ends of the supply pipes 13a to which the fittings of the consumers are connected, are designated by 15.
  • Fig. 1 In the arrangement shown in Fig. 2, all are in Fig. 1 with. 14 designated consumer removed or disconnected. Instead, the pipes 13 and 13a to be cleaned are connected to the cleaning device according to the invention. 1 existing connection between the water meter 11 and the distributor 12 is also interrupted. Via a backflow preventer 16, the fresh water supply is connected to a reservoir 18 via a fresh water supply line 17.
  • a backflow preventer 16 Via a backflow preventer 16, the fresh water supply is connected to a reservoir 18 via a fresh water supply line 17.
  • pumps 19 and 20 are provided, the pump 19 for example for operation with Three-phase current and the pump 20 is designed for operation with alternating current.
  • the pumps are connected to the interior of the storage container 18 via suction lines. One of the suction lines is schematically designated 19 ⁇ .
  • the reservoir 18 serves to hold liquid cleaning medium.
  • Cleaning medium drawn in by one of the pumps flows upward in the direction of the arrow through a line 19a or 20a and via valves 21 to a flow line 22 and a possibly provided further valve 21 to a flow hose 23, which leads to the device for measuring the total flow rate (further below) described).
  • the cleaning medium is passed through the pipes to be cleaned and returned to the reservoir 18 via a return hose 24.
  • the return hose 24 opens into an immersion tube 25, by means of which the cleaning medium is introduced below the liquid level (cf. in particular FIG. 5).
  • Coarse impurities are collected through a sieve 26.
  • fine-grained impurities and sludge (27) collect at the bottom of the storage container 18.
  • a temperature sensor is designated by 28.
  • a heater designed as a heating rod has the reference number 29.
  • An acid meter is designated by 30.
  • a pH value indicator bears the reference number 31.
  • FIG. 32 is a schematically represented level control, by means of which it can be achieved that the heating is switched off when the liquid level falls below a first level and the pumps are switched off when the level falls below a second (lower) liquid level.
  • Chemicals can be filled in via a closable opening 33. At the opening 33 there is a dip tube (not shown).
  • the fresh water supply line shown in Fig. 2 opens into a connection 34, which is also provided with a dip tube (not shown).
  • An additionally provided shut-off valve is also not shown. Furthermore, a vent connection provided with a carbon filter is provided, which is designated by 35. Pressure gauges are designated 36a and 36b. The measuring device 36a shows the supply pressure or the pressure in the supply hose 23, while the measuring device 36b shows the “counter pressure” in the return hose 24. A switch box 37 arranged on the storage container 18 is only shown schematically in FIG. 4. A pressure relief valve for the flow is designated 38, while a back pressure valve arranged in the return flow is designated 38a. An overflow is indicated by 39.
  • the overflow 39 serves to be able to carry out a pressure reduction at a constant pressure generated by the respective pump, in that the pressure relief valve 38 is opened slightly, as a result of which a part of the cleaning medium conveyed by the pump can run back directly into the storage container 18.
  • a main distribution has a first panel 40 and a second panel 45.
  • the boards are formed separately in the embodiment shown; but it can also be provided that it is a one-piece table.
  • a flow meter 41 is attached to the panel 40 and is used to measure the total flow of the cleaning device.
  • a shut-off valve is designated 42.
  • 43 (FIG. 6) denotes a regulating valve with which the total flow rate can be regulated. Since the device is designed to be portable, the individual panels have handles 44.
  • the first panel 40 and the second panel 45 are connected to one another via a hose 46.
  • the hose 46 opens into distribution pipes 47, to which 48 sub-distributions in the individual floors are connected via hoses 49 via shut-off valves.
  • the sub-distributions are each designated 50.
  • the sub-distributors 50 can be equipped with any number of distributions; in the exemplary embodiment shown there are three distributions each.
  • a distributor pipe 51 is followed by metering taps 52, with which the flow rates can be regulated, the amounts of which can be read in each case from flow rate meters 53.
  • the respective pressure in the outgoing hoses 55 can be determined via pressure meter 54.
  • the hoses 55 are connected directly to the connection points 15 of the pipes 13a, so that in this way the pipes 13a and 13 to be cleaned on the inside are supplied with cleaning medium against the flow of use, which is directed from 10 to 15 as shown in FIG. 1 .
  • the device works as follows:
  • connection between the water meter 11 and the distributor 12 is disconnected after the water meter 11 has been shut off.
  • the pipes 13 and 13a are then emptied.
  • the consumers 14 for example fittings
  • the hoses 55 of the device described above are connected to the connection points 15, it should also be mentioned that the hoses 49 are expediently guided between the individual floors via the stairs.
  • a connection to the reservoir 18 is established from the distributor 12 via the line 24. Furthermore, the fresh water supply line 17 including the backflow preventer 16 is installed.
  • fresh water is poured into the reservoir 18, and then the entire system is subjected to a leak test by pressurizing the system with fresh water.
  • the fresh water is allowed to run out of the system, and then cleaning medium is filled into the reservoir 18.
  • the cleaning medium is then loaded into the system.
  • the flow rates in the hoses 55 are adjusted by means of the dosing cocks 52 and the flow meter 53 so that a proportionally uniform flow in all hoses 55 is ensured. This then ensures that there is also a proportionally uniform flow in all the pipes 13a and 13 to be cleaned - based on the total flow, for example in the flow hose 23.
  • the total flow can be read in the flow meter 41 and adjusted via the regulating valve 43.
  • the cleaned pipes are neutralized and rinsed with fresh water for a longer period.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Claims (9)

  1. Procédé pour le nettoyage intérieur de conduites tubulaires ramifiées (13, 13a) et d'ensembles creux (14) qui leur sont reliés, dans lequel plusieurs conduites et ensembles sont traversés par un agent de nettoyage liquide en un branchement en parallèle depuis une amenée commune d'agent de nettoyage (18, 23, 46), caractérisé par le fait que l'on règle le débit de chaque conduite et de chaque ensemble de manière telle que l'on obtienne un effet de nettoyage tenant compte de la section transversale réduite correspondante qui est causée par des dépôts.
  2. Procédé selon la revendication 1, caractérisé par le fait qu'entre l'amenée d'agent de nettoyage et la sortie de l'agent de nettoyage, on réalise pour l'agent de nettoyage une différence de pression telle que soit engendrée une pression produisant un mouillage uniforme par l'agent de nettoyage des côtés intérieurs des conduites tubulaires et des ensembles.
  3. Procédé selon la revendication 1 ou 2, caractérisé par le fait que l'agent de nettoyage liquide est amené à passer à travers les conduites et les ensembles à nettoyer en sens inverse de l'écoulement lors de l'utilisation.
  4. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications 1 à 3, caractérisé par le fait que le réservoir, en fonctionnement en nettoyage, est relié, par l'intermédiaire d'une conduite principale (23, 46) pouvant être soumise à une pression, à au moins un dispositif répartiteur (45, 50) auquel les conduites (13a, 13) et les ensembles à nettoyer sont raccordés pendant le fonctionnement en nettoyage, par le fait que des dispositifs de mesure de la pression (36a) et du débit (41) sont prévus dans la conduite principale (23, 46), et par le fait qu'entre le dispositif répartiteur (45, 50) et les raccordements des conduites et des ensembles, sont prévus des dispositifs (52, 53) destinés à mesurer et à réguler les débits correspondants dans chacune des conduites (13a, 13) à nettoyer et dans chacun des ensembles à nettoyer.
  5. Dispositif selon la revendication 4, caractérisé par le fait qu'entre le dispositif répartiteur (45, 50) et les raccordements des conduites et des ensembles, sont prévus des dispositifs (54) destinés à mesurer la pression correspondante dans chacune des conduites (13a, 13) à nettoyer et dans chacun des ensembles à nettoyer.
  6. Dispositif selon la revendication 4 ou 5, caractérisé par le fait que des dispositifs réglables de maintien de la pression de refoulement (38a) sont prévus du côté de l'extrémité des conduites (13a, 13) et des ensembles à nettoyer.
  7. Dispositif selon la revendication 4 ou 5, caractérisé par le fait que plusieurs des conduites (13a, 13) et des ensembles à nettoyer sont réunis du côté de l'extrémité, et par le fait qu'il est prévu un dispositif commun de maintien de la pression de refoulement (38a).
  8. Dispositif selon l'une des revendications 4 à 7, caractérisé par le fait que les conduites (13a, 13) et les ensembles à nettoyer débouchent dans le réservoir (18) par l'intermédiaire d'une ou de plusieurs conduites intermédiaires (par exemple tuyau de retour 24).
  9. Dispositif selon l'une des revendications 4 à 8, caractérisé par le fait que le dispositif répartiteur comporte une répartition principale (40, 45), et par le fait qu'il est prévu plusieurs sous-répartitions (50) montées en aval sur lesquelles ou derrière lesquelles (vu dans la direction de l'écoulement) sont prévus les dispositifs (52, 53) qui sont destinés à mesurer et à réguler le débit et, le cas échéant, à mesurer les pressions (54) dans chacune des conduites (13a, 13) à nettoyer et dans chacun des ensembles à nettoyer.
EP87113441A 1986-09-16 1987-09-15 Méthode pour le nettoyage intérieur de systèmes de tubes ramifiés et/ou d'ensembles, ainsi que dispositif pour la réalisation de cette méthode Expired - Lifetime EP0260649B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87113441T ATE73696T1 (de) 1986-09-16 1987-09-15 Verfahren zum innenreinigen von verzweigten rohrleitungen und damit verbundenen hohlen aggregaten sowie vorrichtung zur durchfuehrung dieses verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3631459 1986-09-16
DE19863631459 DE3631459A1 (de) 1986-09-16 1986-09-16 Verfahren zum innenreinigen von verzweigten rohrleitungen und/oder aggregaten sowie vorrichtung zur durchfuehrung dieses verfahrens

Publications (3)

Publication Number Publication Date
EP0260649A2 EP0260649A2 (fr) 1988-03-23
EP0260649A3 EP0260649A3 (en) 1989-07-12
EP0260649B1 true EP0260649B1 (fr) 1992-03-18

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Application Number Title Priority Date Filing Date
EP87113441A Expired - Lifetime EP0260649B1 (fr) 1986-09-16 1987-09-15 Méthode pour le nettoyage intérieur de systèmes de tubes ramifiés et/ou d'ensembles, ainsi que dispositif pour la réalisation de cette méthode

Country Status (5)

Country Link
EP (1) EP0260649B1 (fr)
AT (1) ATE73696T1 (fr)
DE (2) DE3631459A1 (fr)
ES (1) ES2030689T3 (fr)
GR (1) GR3004998T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834133C1 (en) * 1988-10-07 1989-11-02 Westfalia Separator Ag, 4740 Oelde, De Process for the automatic rinsing of a unit for removing bacteria from milk
JP3597193B2 (ja) * 1993-03-23 2004-12-02 エイチ．イー．アール．シー．プロダクツ インコーポレイテッド 飲料水配管系統の清浄化及び保全方法
DE4408841C2 (de) * 1994-03-16 1999-03-18 Till Gea Gmbh & Co Verfahren zur Reinigung von Abfüllanlagen
WO1995035419A1 (fr) * 1994-06-20 1995-12-28 H.E.R.C. Products Incorporated Procede de nettoyage et d'entretien de systemes de conduites de distribution d'eau potable au moyen d'une solution de nettoyage chauffee
FR2728800A1 (fr) * 1994-12-30 1996-07-05 Promaiga Procede pour l'entretien des reseaux hydrauliques d'incendie
DE19513150C1 (de) * 1995-04-07 1996-08-29 Aqua Protect Ges Fuer Wasserle Verfahren zum Reinigen und Beschichten von insbesondere zur Wasserführung bestimmten Rohrleitungen oder Rohrleitungssystemen
DE102009034693A1 (de) * 2009-07-24 2011-03-17 Khs Gmbh Anlage zum Be- und/oder Verarbeiten von flüssigen Produkten sowie Verfahren zum Reinigen von Anlagenkomponenten solcher Anlagen
EP2809456B1 (fr) 2012-02-03 2017-10-11 Tetra Laval Holdings & Finance SA Système de traitement de liquide doté de sous-systèmes secondaires permettant de réduire les pertes de produit et la consommation d'eau
CA3007499C (fr) * 2015-12-11 2020-07-28 Idea Boxx, Llc Equilibrage de flux dans un systeme de nettoyage de robot de cuisine
DE202019003089U1 (de) * 2019-07-24 2020-10-27 Josef Schallameier Entkalkung von unter Druck stehenden Rohrleitungen beliebiger Länge

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Publication number Priority date Publication date Assignee Title
GB1052809A (fr) * 1900-01-01
US2168636A (en) * 1938-03-30 1939-08-08 Sidney A Scobell Liquid dispensing system
DE2106223C3 (de) * 1971-02-10 1980-01-31 Tuchenhagen, Otto, 2059 Buechen Leitungsanordnung zur Innenreinigung von Apparaten im Kreislaufverfahren
DE2714083A1 (de) * 1977-03-30 1978-10-12 Ahlborn E Gmbh Anlage zur reinigung von rohrleitungen und an diese anschliessbare, vorzugsweise fluessige nahrungsmittel enthaltende behaelter
FR2525769A1 (fr) * 1982-04-22 1983-10-28 Aerospatiale Procede et dispositif pour le controle de l'etancheite et le nettoyage de conduites, par circulation de fluide

Also Published As

Publication number Publication date
GR3004998T3 (fr) 1993-04-28
EP0260649A3 (en) 1989-07-12
DE3631459A1 (de) 1988-03-24
DE3777510D1 (de) 1992-04-23
ATE73696T1 (de) 1992-04-15
EP0260649A2 (fr) 1988-03-23
ES2030689T3 (es) 1992-11-16

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