WO2012022739A1 - Procédé et dispositif de nettoyage par sections, avec désinfection simultanée, de conduites enterrées du réseau d'eau potable public - Google Patents

Procédé et dispositif de nettoyage par sections, avec désinfection simultanée, de conduites enterrées du réseau d'eau potable public Download PDF

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Publication number
WO2012022739A1
WO2012022739A1 PCT/EP2011/064076 EP2011064076W WO2012022739A1 WO 2012022739 A1 WO2012022739 A1 WO 2012022739A1 EP 2011064076 W EP2011064076 W EP 2011064076W WO 2012022739 A1 WO2012022739 A1 WO 2012022739A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
drinking water
cleaning liquid
pipe
liquid
Prior art date
Application number
PCT/EP2011/064076
Other languages
German (de)
English (en)
Inventor
Günter MÖSSLEIN
Original Assignee
Mösslein Gmbh
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 Mösslein Gmbh filed Critical Mösslein Gmbh
Priority to EP11751577.5A priority Critical patent/EP2605870B1/fr
Priority to PL11751577T priority patent/PL2605870T3/pl
Priority to SI201130218T priority patent/SI2605870T1/sl
Publication of WO2012022739A1 publication Critical patent/WO2012022739A1/fr
Priority to HRP20140766AT priority patent/HRP20140766T1/hr

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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
    • 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
    • B08B9/0326—Using pulsations
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/09—Component parts or accessories

Definitions

  • the invention relates to a combined method for the partial cleaning of pipelines, with simultaneous disinfection, the public drinking water network and a device for carrying out the method.
  • a deported part of a drinking water pipe which is buried, flows through in one operation and in a closed circuit through a clean or rinsing liquid applied with defined pressure, the volume of which corresponds to that of the deported line and dosed into the cleaning liquid added chemical and oxidative additives be removed according to the cleaning progress / disinfection progress again creeping from the cleaning cycle.
  • a simple and possibly effective method is the well-known air-flushing.
  • sediments in a pipe and solid deposits of iron, manganese or lime are flushed out within a deported route.
  • sterile, cooled and oil-free air is added to the amount of existing in the flushing water and generates a cleaning pressure on the air introduced, which is below the normal, otherwise existing in the line system operating pressure ( ⁇ 7 bar) to avoid line damage, with flow rates of up to 15 m / s can be achieved.
  • Cavitation mechanically removes deposits on the inner walls of the pipe and the pipe is finally vented and rinsed with fresh water.
  • the company A & T-Rohr lenders-GmbH proposes for the cleaning and flushing of laid in buildings drinking water pipes a method of introducing a proportional proportion of water-air mixture, wherein by connecting a metering pump the pipe system, a cleaning and disinfecting agent is added. Heavily soiled pipes are treated with a continuous air blast and must be disinfected afterwards. The process is complex and it does not guarantee that damage to the water pipe system and its fittings occur.
  • a method and a device for cleaning drinking water pipes and for flushing drinking water networks are proposed, with a corresponding line of a groundwater drinking water pipe is still in operation.
  • a line to be cleaned line is acted upon by appropriately spaced hydrants on the one hand with introduced compressed air, so that in the line a scavenging pressure is generated, which is 0.5 bar above the Resthenetz für and, to the other by opening one at the end of the line second Hydrants the supply pressure is lowered back to the rest of the grid pressure.
  • compressed air surges There are also provided compressed air surges.
  • a solution which is close to the invention is set out in DE 10 2005 008 603.
  • the device described here can be moved by hand and, in contrast to the usual flow direction, a drinking-water pipe is cleaned of sediments and other deposits via a hydrant connection and a connected flushing section. During the cleaning phase is additionally worked with hydrosulfite in 60% solution. To monitor the cleaning progress, a turbidity meter and a volumetric flow measurement are integrated in the return line.
  • the device is by the use of a hydrocyclone and a graded pump group as a device technically very expensive.
  • WO 2006 020 092 describes a cleaning which takes place under pneumatic pressure and in a cleaning liquid with "floating" foam rubber pellets. beaten. As a result, maximum biofilms, but no fixed incrustations, are solvable. According to the method, small amounts of a solvent are used in the cleaning process.
  • DE 893 595 B has disclosed a method for dissolving and removing deposits and deposits in channels and pipes.
  • the dirt or other deposits and deposits formed on the inner pipe walls are loosened by longitudinal and / or circular impulses of a hydraulic medium or a thread of various hydraulic media and finally removed.
  • pulses are inventively generated by at one or more points of the tube preferably tangentially under pressure and intermittently or intermittently fed liquid and / or vaporous and / or gaseous media and can be supported in their effect even by a generated at the end of the pipe to be treated pipe suction ,
  • US 5 800 629 A discloses a pipe cleaning system and a treatment of a used cleaning solution. This is done in a dirty pipe system to remove films / deposits in the pipe system.
  • the consuming cleaning solution circulates through the pipe system and an additional treatment agent is added to the circulating cleaning mixture.
  • the treatment agent is added until an environmentally sound disposal can take place. This method reduces the consumption of cleaning solution.
  • Deposited carbonates are dissolved with acid and neutralized by NaOH (caustic soda).
  • WO 2009/002 080A1 presents a cleaning device and a method.
  • the cleaning device includes an air compressor, a liquid metering device and a control device.
  • the air compressor generates compressed air, which is pressed into the pipe to be cleaned.
  • the liquid metering device delivers liquid by pump into the pipe to be cleaned.
  • the controller measures the compressed air, alternatively using the compressed air and liquid at intervals. It can also be used with unequal pressures and expansion of the treatment room. Additionally, a vibratory force is indexable to remove debris. This increases the effectiveness of the removal.
  • WO 2003/095 745 A1 specifies means for cleaning a conduit.
  • a liquid delivery conduit a fluid dispensing conduit, a vacuum source and separators
  • the delivery conduit being connected to a fluid source via a pump
  • the free end of the fluid delivery conduit having a nozzle with its conduit leading into a conduit and the liquid outlet of the nozzle is positioned so that an effective cleaning of the deposits takes place in the pipe and a movement of the nozzle takes place within the pipe to be cleaned.
  • Release agents separate dissolved components and filter the rinse solution.
  • the amount of cleaning and rinsing water should be precleared and neutralized for the discharge into the receiving water and it should be ensured that the dosage of the chemical additives is recirculated during the purification process.
  • the mobile method uses a known per se air-water flushing (cleaning) of drinking water pipes, the latter being deported, in a cycle and under a continuous metered addition of low concentrated chemical and oxidative additives.
  • the process conditions are designed so that the running in several steps cleaning / disinfection and rinsing operations, which are performed repeatedly in the circuit to eliminate incrustations completely, act on applied Resting pressure and unchanged temperature of pending for cleaning / disinfection and flushing drinking water ,
  • the method can be characterized by the following steps, namely, that for sectionally cleaning, with simultaneous disinfection, of buried pipelines of the public drinking water network, a deported or temporarily separated in open trench shed from the rest of the drinking water network section via a mobile device in a first step by means of a circulated in the circulation cleaning liquid is applied, in which metered compressed air and a mixture of low-concentrated chemical additives for the solution of incrustations and for disinfection is added and after each throughput the cleaning liquid is pre-clarified over a Kimme- rige arrangement of settling tanks, so that after settling dissolved solid particles the cleaning fluid is supplemented only to a small extent by fresh water to the level of the required amount of the flow rate of cleaning fluid and the furnishedsungssch ritt, among other things, is monitored by turbidity and / or volumetric flow measurement, in a second step - after completion of the circulation of the cleaning liquid - the latter during a resting phase to solve the last residues / deposits in the pipeline to be
  • the dosages of chemical and oxidative additives are continuously reduced by measuring progressing cleaning and disinfection (cloud measurement, decontamination, etc.).
  • a large amount of recirculating cleaning / disinfecting or rinsing liquid can be obtained from the circulating arrangement of several settling tanks, so that only a small amount of fresh water has to be added to maintain the predetermined volume of the total amount of cleaning or rinsing.
  • the chemical agents contained in a defined amount, in particular in the cleaning / disinfecting liquid such as weakly concentrated inorganic acids and hydrogen peroxide (disinfecting) become one and two in after completion of the aforementioned steps neutralizes a third, wherein the inorganic acids may be HCl, H 3 P0 4 , H 2 S0 4 or others.
  • the inorganic acids have a concentration of 5% to 20% when used in a mixture which corresponds approximately to the amount of the volume of cleaning / disinfecting liquid to be pumped from 5% to 25%. After a rinse of the pipe section whose inner walls are brought into operative connection with a phosphating for the purpose of corrosion protection.
  • Dissolved solid particles are withdrawn from the last stage of the multi-chamber arrangement of settling tanks.
  • Figure 1 Overall view in the diagram of a device according to the invention for
  • the device for carrying out the method consists of a built on a motor vehicle multi-chamber arrangement of sedimentation tank 1, wherein according to the embodiment of Figure 1, for example, 3 chambers, connected to each other by an overflow, are present and a cleaning / disinfection and rinsing circulation-maintaining circulation pump 2 acting in the individual treatment steps, thereafter and before a dosing unit 3 for weak, chemical or oxidative substances is present.
  • a dosing unit 3 for weak, chemical or oxidative substances is present.
  • an air inlet 4 for compressed air so on the flow rate of the liquids umzupumpenden and by Kavitationsbedingenden effects together with the inventively added chemical substances and very firm growths in drinking water pipes 5 can be eliminated.
  • the pre-clarified in the 3rd Chamber and in a neutralization stage (not shown in detail) - after a cleaning / disinfection cycle purified water can be discharged there via a drain 6 in the receiving water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

L'invention concerne un procédé combiné de nettoyage par sections, avec désinfection simultanée, de conduites enterrées du réseau d'eau potable public, selon lequel une section fermée par vanne ou séparée temporairement du reste du réseau d'eau potable, par réalisation d'une tranchée blindée ouverte, est soumise à l'action d'un liquide de nettoyage mis en recirculation par pompage au cours d'une première étape dans un dispositif mobile, liquide auquel sont ajoutés une quantité dosée d'air comprimé et un mélange d'additifs chimiques faiblement concentrés pour la dissolution des incrustations et la désinfection. Après chaque passage, le liquide de nettoyage est prédécanté dans un ensemble à chambres multiples de bacs de décantation (1), de sorte qu'après le dépôt de particules de matière solide dissoute, le liquide de nettoyage est complété uniquement dans une faible mesure par de l'eau claire pour atteindre la quantité nécessaire de liquide de nettoyage à faire passer dans la conduite, l'avancement du nettoyage étant surveillé, entre autres, au moyen de la mesure de turbidité. Dans une deuxième étape, une fois la circulation du liquide de nettoyage terminée, ledit liquide reste dans la conduite à nettoyer pendant une période de temps définie, au cours d'une phase de repos, pour dissoudre les derniers résidus/dépôts. Au cours d'une troisième étape, après le nettoyage réalisé selon les deux premières étapes, les additifs chimiques présents dans le liquide de nettoyage sont neutralisés et amenés jusqu'à un milieu récepteur. Au cours d'une quatrième étape, la conduite d'eau potable (5) nettoyée est rincée à l'eau claire et, au cours d'une cinquième étape, une solution inhibitrice est appliquée sur la paroi intérieure de la conduite en vue de la protection contre la corrosion. L'invention concerne un procédé de travail à exécuter de préférence en cinq étapes et un dispositif mettant en œuvre ledit procédé.
PCT/EP2011/064076 2010-08-17 2011-08-16 Procédé et dispositif de nettoyage par sections, avec désinfection simultanée, de conduites enterrées du réseau d'eau potable public WO2012022739A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP11751577.5A EP2605870B1 (fr) 2010-08-17 2011-08-16 Procédé et dispositif de nettoyage par sections, avec désinfection simultanée, de conduites enterrées du réseau d'eau potable public
PL11751577T PL2605870T3 (pl) 2010-08-17 2011-08-16 Sposób i urządzenie do odcinkowego czyszczenia z równoczesną dezynfekcją, ułożonych w ziemi rurociągów publicznej sieci wodociągowej
SI201130218T SI2605870T1 (sl) 2010-08-17 2011-08-16 Postopek in naprava za sektorsko čiščenje, skupaj s sočasno dezinfekcijo, vkopanih cevovodov v okviru javnega vodovodnega omrežja za oskrbo s pitno vodo
HRP20140766AT HRP20140766T1 (hr) 2010-08-17 2014-08-14 Postupak i uređaj za sekcijsko čišćenje, uz istodobnu dezinfekciju ukopanih cjevovoda mreže javnog vodovoda pitke vode

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010039385.1 2010-08-17
DE102010039385A DE102010039385A1 (de) 2010-08-17 2010-08-17 Verfahren und Einrichtung zur abschnittsweisen Reinigung, bei gleichzeitiger Desinfektion, von erdverlegten Rohrleitungen des öffentlichen Trinkwassernetzes

Publications (1)

Publication Number Publication Date
WO2012022739A1 true WO2012022739A1 (fr) 2012-02-23

Family

ID=44543225

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/064076 WO2012022739A1 (fr) 2010-08-17 2011-08-16 Procédé et dispositif de nettoyage par sections, avec désinfection simultanée, de conduites enterrées du réseau d'eau potable public

Country Status (6)

Country Link
EP (1) EP2605870B1 (fr)
DE (1) DE102010039385A1 (fr)
HR (1) HRP20140766T1 (fr)
PL (1) PL2605870T3 (fr)
SI (1) SI2605870T1 (fr)
WO (1) WO2012022739A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105155622A (zh) * 2015-09-28 2015-12-16 江西中煤建设集团有限公司 便捷式给水管道排渣排气阀检查系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2432469B1 (es) * 2012-04-11 2015-07-15 Aqualogy Development Network, S.A. Kit para la desinfección de tuberías.
DE102017120349B3 (de) 2017-09-05 2019-02-14 Dr. Schmelz GmbH Verfahren und Vorrichtung zur Reinigung einer Rohrleitung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE893595C (de) 1951-12-29 1953-10-19 Adalbert Besta Verfahren zum Loesen und Entfernen von Ablagerungen und Anlagerungen in Kanaelen und Rohren
DE4438939C2 (de) 1994-10-31 1997-02-13 Kanal Sanierung Halle Gmbh Verfahren und Einrichtung zum Reinigen von Trinkwasserleitungen und zum Spülen von Trinkwasserleitungsnetzen
JPH09187745A (ja) * 1996-01-10 1997-07-22 Ootaki Gas Kk 管体のメンテナンス方法
US5800629A (en) 1997-03-06 1998-09-01 H.E.R.C. Products Incorporated Pipe system cleaning and in-line treatment of spent cleaning solution
DE10041021A1 (de) * 2000-08-22 2002-03-07 Emilia Steinicke Verfahren zur Reinigung eines Kanals
WO2003095745A1 (fr) 2002-05-08 2003-11-20 Leonhard Kurz Gmbh & Co. Kg Corps multicouche pourvu d'une couche sensible au laser
DE202004002857U1 (de) * 2004-02-23 2004-07-22 Kodiak Gmbh Einrichtung zur segmentweisen Reinigung von Rohrsystemen in Trinkwasserversorgungsanlagen
WO2006020092A2 (fr) 2004-07-20 2006-02-23 The Boeing Company Procedes et systemes de nettoyage pneumatique
KR100790516B1 (ko) 2007-04-05 2008-01-03 이순하 지하수 관정의 청소장치 및 그 방법
WO2009002080A1 (fr) 2007-06-25 2008-12-31 Young Uk Ku Appareil et procédé de nettoyage de tuyaux

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003095754A1 (fr) * 2002-05-07 2003-11-20 Cleanflow Technologies Pty Ltd Moyen de nettoyage d'une conduite

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE893595C (de) 1951-12-29 1953-10-19 Adalbert Besta Verfahren zum Loesen und Entfernen von Ablagerungen und Anlagerungen in Kanaelen und Rohren
DE4438939C2 (de) 1994-10-31 1997-02-13 Kanal Sanierung Halle Gmbh Verfahren und Einrichtung zum Reinigen von Trinkwasserleitungen und zum Spülen von Trinkwasserleitungsnetzen
JPH09187745A (ja) * 1996-01-10 1997-07-22 Ootaki Gas Kk 管体のメンテナンス方法
US5800629A (en) 1997-03-06 1998-09-01 H.E.R.C. Products Incorporated Pipe system cleaning and in-line treatment of spent cleaning solution
DE10041021A1 (de) * 2000-08-22 2002-03-07 Emilia Steinicke Verfahren zur Reinigung eines Kanals
WO2003095745A1 (fr) 2002-05-08 2003-11-20 Leonhard Kurz Gmbh & Co. Kg Corps multicouche pourvu d'une couche sensible au laser
DE202004002857U1 (de) * 2004-02-23 2004-07-22 Kodiak Gmbh Einrichtung zur segmentweisen Reinigung von Rohrsystemen in Trinkwasserversorgungsanlagen
DE102005008603A1 (de) 2004-02-23 2005-09-08 Kodiak Gmbh Einrichtung zur segmentweisen Reinigung von Rohrsystemen in Trinkwasserversorgungsanlagen
WO2006020092A2 (fr) 2004-07-20 2006-02-23 The Boeing Company Procedes et systemes de nettoyage pneumatique
KR100790516B1 (ko) 2007-04-05 2008-01-03 이순하 지하수 관정의 청소장치 및 그 방법
WO2009002080A1 (fr) 2007-06-25 2008-12-31 Young Uk Ku Appareil et procédé de nettoyage de tuyaux

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105155622A (zh) * 2015-09-28 2015-12-16 江西中煤建设集团有限公司 便捷式给水管道排渣排气阀检查系统

Also Published As

Publication number Publication date
EP2605870A1 (fr) 2013-06-26
EP2605870B1 (fr) 2014-05-21
SI2605870T1 (sl) 2014-08-29
DE102010039385A1 (de) 2012-02-23
HRP20140766T1 (hr) 2014-09-26
PL2605870T3 (pl) 2014-11-28

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