EP0053355A1 - Reinigungskörper und Reinigungsanlage zur Anwendung dieses Körpers - Google Patents

Reinigungskörper und Reinigungsanlage zur Anwendung dieses Körpers Download PDF

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Publication number
EP0053355A1
EP0053355A1 EP81109896A EP81109896A EP0053355A1 EP 0053355 A1 EP0053355 A1 EP 0053355A1 EP 81109896 A EP81109896 A EP 81109896A EP 81109896 A EP81109896 A EP 81109896A EP 0053355 A1 EP0053355 A1 EP 0053355A1
Authority
EP
European Patent Office
Prior art keywords
cleaning
fluid
grain
installation
pipe
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.)
Granted
Application number
EP81109896A
Other languages
English (en)
French (fr)
Other versions
EP0053355B1 (de
Inventor
Elie Condolios
Jacques Duport
Michel Rey
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.)
Alstom SA
Original Assignee
Alsthom Atlantique SA
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 Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Priority to AT81109896T priority Critical patent/ATE5746T1/de
Publication of EP0053355A1 publication Critical patent/EP0053355A1/de
Application granted granted Critical
Publication of EP0053355B1 publication Critical patent/EP0053355B1/de
Expired 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
    • B08B9/0325—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
    • B08B9/055—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/12—Fluid-propelled scrapers, bullets, or like solid bodies

Definitions

  • the present invention relates to the cleaning of industrial containers or devices in which circulates a fluid capable of leaving biological or mineral deposits.
  • the invention relates to the cleaning of exchangers, whether they are tubular, plate or serpentine.
  • the system has been improved by using, for cleaning the tube condensers, balls, driven by the fluid and describing a closed circuit inside the device to be cleaned.
  • balls which have a diameter close to that of the tubes to be cleaned, wear out quickly; moreover, the system cannot be used for cleaning certain types of exchangers such as plate or coil exchangers.
  • these abrasives have the defect of wearing down the container to be cleaned and of accumulating in certain parts of the container where the speed of the fluid is lower, which makes their use impossible in certain types of exchangers.
  • the subject of the invention is a cleaning element of an industrial device in which a fluid capable of causing mineral and biological deposits circulates, said cleaning element being introduced in large numbers into the fluid and acting by mechanical action on the walls of the device, element characterized in that it consists of an artificial grain of a mixture of synthetic materials capable of withstanding a temperature of up to 150 degrees, the grain having a relative density of between 0.8 and 1.5 relative to the density of said fluid and an average diameter between 40 and 6000 microns.
  • the grain has in all cases an average diameter less than or equal to one third of the equivalent hydraulic diameter of the walls to be cleaned, the equivalent diameter being equal to 4 times the ratio of the section of the passage of the fluid to the wet perimeter.
  • the grain advantageously consists of a mixture of polypropylene and calcium carbonate.
  • the grain is loaded with abrasive particles, regularly distributed within the grain and the material of which is preferably chosen from quartz and corundum.
  • Figure 1 shows, seen in cross section, a cleaning element 1 according to the invention, which applies to soft fouling.
  • the grain will have an average diameter less than or equal to one third of the equivalent hydraulic diameter of the walls to be cleaned. This diameter is equal to 4 - where S is the cross section of the fluid and p the perimeter of the wet surface.
  • the equivalent diameter is equal to 2e, if L is large in front of e.
  • the element is made of a mixture of plastic and various components; the proportions of the various components are chosen so that the relative density relative to that of the fluid is between 0.8 and 1.5.
  • This density interval has a double advantage: the element is of sufficiently low density not to accumulate in the parts of the device where the fluid flow speed is lower; on the other hand, its density can be chosen sufficiently different from that of the working fluid of the device (generally water when the device is a heat exchanger), in order to be able to be separated from the fluid by means of a separator included in an installation cleaning, as will be described later.
  • the element is made from polypropylene with a density close to 0.8, mixed with calcium carbonate, density 2.7 in selected proportions, to ensure the finished element a relative density included in the range indicated above.
  • the elements are obtained by a hot compounding process.
  • cleaning elements of the type of that of FIG. 2 are preferably used, substantially spherical and which differs from that of FIG. 1 in that it contains, embedded in its interior, abrasive particles 2, such as corundum, silica, or quartz powder.
  • the cleaning elements can be conventionally used to clean an installation whose operation is previously stopped.
  • FIG. 3 Such an installation is shown diagrammatically in FIG. 3.
  • a device to be cleaned 10 which is for example a heat exchange, receiving a cold fluid (water) by an inlet pipe 11 by a pump 12, this fluid leaving the device by an outlet pipe 13.
  • Valves 14 and 15 allow the device to be isolated in order to clean it.
  • the cleaning installation comprises in parallel on the device 10 from the outlet to the inlet thereof a circuit composed successively of a liquid-solid separator 30, a storage silo 40, a metering device 45 and a cleaning pump 50.
  • a pipe 60 furthermore connects the outlet of the device 10 and the inlet of the pump 50 and makes it possible to circulate in bypass when the fluid at the desired concentration of elements.
  • a pipe 61 connects via a valve 62 the upper part of the separator to the pipe 60. It recycles the liquid until the complete separation of the elements of the fluid.
  • a pipe 63 connects, via a valve 64, the top of the storage silo 40 to the pipe 60; it allows the concentration of the fluid.
  • a pipe 65 isolated by a valve 66, allows the rejection of biological suspensions from cleaning.
  • a pipe 70 starting from the top of the storage silo 40 allows the elements to fluidize.
  • This pipe is connected to the base from the silo via a pipe 71 via a valve 72 and a pump 73.
  • Valves 41, 51, 67 and 81 complete the device.
  • the separator is isolated by closing the valves 31 and 62.
  • the valves 12, 64, 41 and 72 are open; valve 67 is closed.
  • the dosing in concentration of cleaning elements is carried out by the fluidization of a part of the elements contained in the storage silo 40.
  • the fluidization is obtained by injecting a low flow of water with the pump 73.
  • the concentration measurement is determined by the metering device 45.
  • valves 31, 62, 64 and 41 are closed; the valves 12 and 67 are open.
  • the cleaning is done by circulation of the fluid loaded with cleaning element outside the separator 30 and the storage silo 40.
  • the concentration of elements is advantageously from 5 to 15%.
  • the flow speed can be between 0.2 and 1.5 m / s for tubing with a diameter less than 8 mm, and between 0.8 and 4 m / s for tubing with a diameter greater than 8 mm.
  • a cleaning time of 15 minutes is usually sufficient if it is repeated periodically (for example, monthly).
  • the third phase consists in recovering the cleaning elements. To this end, the valves 12, 64, 41 and 72 are closed and the valves 31, 62, 67 are open.
  • the elements are both cleaned and separated from the water in the separator 30.
  • the waste is evacuated via line 65 and the cleaning elements return to the storage silo 40.
  • the installation can then be replenished with clean water and clean the installation by circulating the water in the separator and the piping 65.
  • the installation shown diagrammatically in FIG. 4, on the contrary allows the cleaning of a device without requiring the stopping of its operation. In addition, it only requires a low flow pump. It allows, by periodic tests on the coefficient, of heat exchange, to carry out cleaning phases of precise duration carried out correctly.
  • the synthetic cleaning elements introduced into the cleaning circuit constituted by the separator 30, the silo 40, the doser 45 and the pump 50 pass through the exchanger 10 and carry with them the deposits.
  • they are separated from the working fluid of the exchanger which joins the pipe 13 through a valve 35; a significant part of the waste is evacuated through the pipe 65.
  • the flow extracted by this pipe is compensated by an addition through the valve 74.
  • the synthetic cleaning elements return to the cleaning cycle until the end of the operation which is controlled by stopping the pump 50.
  • the latter is of lower capacity than in the case of the installation of FIG. 3 since it only carries a weak flow rate, of the order of 1/10 that of the exchanger pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Cleaning In General (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Detergent Compositions (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Inorganic Insulating Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)
EP81109896A 1980-12-01 1981-11-26 Reinigungskörper und Reinigungsanlage zur Anwendung dieses Körpers Expired EP0053355B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81109896T ATE5746T1 (de) 1980-12-01 1981-11-26 Reinigungskoerper und reinigungsanlage zur anwendung dieses koerpers.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8025448 1980-12-01
FR8025448A FR2495028A1 (fr) 1980-12-01 1980-12-01 Element de nettoyage et installation de nettoyage mettant en oeuvre cet element

Publications (2)

Publication Number Publication Date
EP0053355A1 true EP0053355A1 (de) 1982-06-09
EP0053355B1 EP0053355B1 (de) 1983-12-28

Family

ID=9248514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109896A Expired EP0053355B1 (de) 1980-12-01 1981-11-26 Reinigungskörper und Reinigungsanlage zur Anwendung dieses Körpers

Country Status (8)

Country Link
EP (1) EP0053355B1 (de)
JP (1) JPS57122299A (de)
AT (1) ATE5746T1 (de)
CA (1) CA1193108A (de)
DE (1) DE3161804D1 (de)
ES (1) ES8300518A1 (de)
FR (1) FR2495028A1 (de)
PT (1) PT74054B (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589090A1 (fr) * 1983-11-23 1987-04-30 Superior I D Tube Cleaners Inc Dispositif de nettoyage de la paroi interieure de tubes, nettoyeurs de tubes et procede de mise en oeuvre
GB2207972A (en) * 1987-08-01 1989-02-15 Shizuo Sagawa Cleaning pigs
EP0487488A2 (de) * 1990-10-19 1992-05-27 INDUSTRIEANLAGEN-PLANUNGS- UND HANDELSGESELLSCHAFT m.b.H. Verfahren, Reinigungsmittel,Reinigungskörper und Verwendung einer Reinigungsflüssigkeit zur Reinigung von Werkstücken
DE4244396A1 (de) * 1992-12-29 1994-06-30 Heron Sondermaschinen Und Steu Verbindungsstück für die lösbare Verbindung zweier Profilstäbe, vorzugsweise aus Leichtmetall
EP0634229A1 (de) * 1993-07-12 1995-01-18 Promotec AG Verfahren, Zusammensetzung und Vorrichtung zur Innenreinigung und Beschichtung von Rohrleitungen
US5685041A (en) * 1996-02-14 1997-11-11 Sivacoe; Orlande Pipe pig with abrasive exterior
WO2000008404A1 (fr) * 1998-08-06 2000-02-17 E. Beaudrey & Cie Procede et installation pour la gestion des elements solides mis en circulation dans un echangeur de chaleur pour le nettoyage de celui-ci
WO2003008116A1 (de) * 2001-07-19 2003-01-30 Bayer Materialscience Ag Verfahren zum entfernen von ablagerungen an chemischen reaktoren
WO2004042314A1 (de) * 2002-11-05 2004-05-21 Taprogge Gmbh System zum reinigen von rohren von wärmetauschern
US6945316B2 (en) 2002-11-05 2005-09-20 Taprogge Gmbh System for cleaning tubes of heat exchangers and cleaning bodies therefor
WO2006032899A1 (en) * 2004-09-25 2006-03-30 Shaun William Sadler Method and apparatus for cleaning liquids
WO2009108435A1 (en) * 2008-02-27 2009-09-03 Westlake Longview Corporation Method of preventing or reducing agglomeration on grid in fluidized-bed vessel
US8129482B2 (en) 2008-02-27 2012-03-06 Westlake Longview Corporation Method of preventing or reducing polymer agglomeration on grid in fluidized-bed reactors
EP2689838A1 (de) * 2012-07-26 2014-01-29 Saudi Basic Industries Corporation Verfahren zur Reinigung eines Reaktors
US20160238333A1 (en) * 2013-10-14 2016-08-18 Hvs Engineering Pte Ltd Method of cleaning a heat exchanger

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0212493U (de) * 1988-07-06 1990-01-25
JP6767066B1 (ja) * 2020-02-07 2020-10-14 株式会社ミズキ 洗浄ボールとその製造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1214853A (fr) * 1958-05-02 1960-04-12 Berguerand & Cie Ets Pièces en caoutchouc, plastique ou toute matière souple, spécialement conçues pour le nettoyage des tuyauteries
FR74154E (de) * 1961-03-06
US3011197A (en) * 1957-07-18 1961-12-05 Mobay Chemical Corp Pipeline cleaning devices
FR1449837A (fr) * 1965-07-06 1966-05-06 Tampon pour le nettoyage de conduites
DE1247359B (de) * 1962-01-22 1967-08-17 Hitachi Ltd Reinigungsvorrichtung fuer Roehren-Waermetauscher
DE1281456B (de) * 1962-05-02 1968-10-31 Taprogge Fa Ludwig Siebanordnung fuer Kondensatoranlagen mit Selbstreinigungseinrichtung
US3573985A (en) * 1967-08-15 1971-04-06 Western Decalta Petroleum Ltd Method for cleaning pipelines
EP0041700A2 (de) * 1980-06-10 1981-12-16 Taprogge Gesellschaft mbH Reinigungskörper für die Innenreinigung von Röhrenwärmetauschern

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534567B2 (de) * 1973-05-28 1978-02-18

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR74154E (de) * 1961-03-06
US3011197A (en) * 1957-07-18 1961-12-05 Mobay Chemical Corp Pipeline cleaning devices
FR1214853A (fr) * 1958-05-02 1960-04-12 Berguerand & Cie Ets Pièces en caoutchouc, plastique ou toute matière souple, spécialement conçues pour le nettoyage des tuyauteries
DE1247359B (de) * 1962-01-22 1967-08-17 Hitachi Ltd Reinigungsvorrichtung fuer Roehren-Waermetauscher
DE1281456B (de) * 1962-05-02 1968-10-31 Taprogge Fa Ludwig Siebanordnung fuer Kondensatoranlagen mit Selbstreinigungseinrichtung
FR1449837A (fr) * 1965-07-06 1966-05-06 Tampon pour le nettoyage de conduites
US3573985A (en) * 1967-08-15 1971-04-06 Western Decalta Petroleum Ltd Method for cleaning pipelines
GB1230129A (de) * 1967-08-15 1971-04-28
EP0041700A2 (de) * 1980-06-10 1981-12-16 Taprogge Gesellschaft mbH Reinigungskörper für die Innenreinigung von Röhrenwärmetauschern

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589090A1 (fr) * 1983-11-23 1987-04-30 Superior I D Tube Cleaners Inc Dispositif de nettoyage de la paroi interieure de tubes, nettoyeurs de tubes et procede de mise en oeuvre
EP0220347A1 (de) * 1983-11-23 1987-05-06 Superior I.D. Tube Cleaners Inc. Reinigungskörper zum Reinigen der Innenwand eines Rohres
GB2207972A (en) * 1987-08-01 1989-02-15 Shizuo Sagawa Cleaning pigs
GB2207972B (en) * 1987-08-01 1991-10-16 Shizuo Sagawa Pipe cleaning method
EP0487488A2 (de) * 1990-10-19 1992-05-27 INDUSTRIEANLAGEN-PLANUNGS- UND HANDELSGESELLSCHAFT m.b.H. Verfahren, Reinigungsmittel,Reinigungskörper und Verwendung einer Reinigungsflüssigkeit zur Reinigung von Werkstücken
EP0487488A3 (en) * 1990-10-19 1993-01-27 Industrieanlagen-Planungs- Und Handelsgesellschaft M.B.H. Method, cleaning agent, cleaning bodies and use of a cleaning agent for the cleaning of workpieces
DE4244396A1 (de) * 1992-12-29 1994-06-30 Heron Sondermaschinen Und Steu Verbindungsstück für die lösbare Verbindung zweier Profilstäbe, vorzugsweise aus Leichtmetall
DE4244396C2 (de) * 1992-12-29 1998-04-30 Heron Sondermaschinen Und Steu Verbindungsstück für die lösbare Verbindung zweier Profilstäbe, vorzugsweise aus Leichtmetall
EP0634229A1 (de) * 1993-07-12 1995-01-18 Promotec AG Verfahren, Zusammensetzung und Vorrichtung zur Innenreinigung und Beschichtung von Rohrleitungen
US5685041A (en) * 1996-02-14 1997-11-11 Sivacoe; Orlande Pipe pig with abrasive exterior
WO2000008404A1 (fr) * 1998-08-06 2000-02-17 E. Beaudrey & Cie Procede et installation pour la gestion des elements solides mis en circulation dans un echangeur de chaleur pour le nettoyage de celui-ci
DE19883011B4 (de) * 1998-08-06 2008-11-27 E. Beaudrey & Cie. Verfahren und Vorrichtung zur Steuerung bzw. Überwachung von in einem Wärmetauscher zur Reinigung desselben zirkulierenden festen Elementen
WO2003008116A1 (de) * 2001-07-19 2003-01-30 Bayer Materialscience Ag Verfahren zum entfernen von ablagerungen an chemischen reaktoren
US6986816B2 (en) 2001-07-19 2006-01-17 Bayer Aktiengesellschaft Method for removing deposits from chemical reactors
WO2004042314A1 (de) * 2002-11-05 2004-05-21 Taprogge Gmbh System zum reinigen von rohren von wärmetauschern
US6945316B2 (en) 2002-11-05 2005-09-20 Taprogge Gmbh System for cleaning tubes of heat exchangers and cleaning bodies therefor
WO2006032899A1 (en) * 2004-09-25 2006-03-30 Shaun William Sadler Method and apparatus for cleaning liquids
WO2009108435A1 (en) * 2008-02-27 2009-09-03 Westlake Longview Corporation Method of preventing or reducing agglomeration on grid in fluidized-bed vessel
US8124697B2 (en) 2008-02-27 2012-02-28 Westlake Longview Corporation Method of preventing or reducing agglomeration on grid in fluidized-bed vessel
US8129482B2 (en) 2008-02-27 2012-03-06 Westlake Longview Corporation Method of preventing or reducing polymer agglomeration on grid in fluidized-bed reactors
EP2689838A1 (de) * 2012-07-26 2014-01-29 Saudi Basic Industries Corporation Verfahren zur Reinigung eines Reaktors
US20160238333A1 (en) * 2013-10-14 2016-08-18 Hvs Engineering Pte Ltd Method of cleaning a heat exchanger
US10030920B2 (en) * 2013-10-14 2018-07-24 Hvs Engineering Pte Ltd Method of cleaning a heat exchanger
AU2014337436B2 (en) * 2013-10-14 2018-10-04 Hvs Engineering Pte Ltd Method of cleaning a heat exchanger

Also Published As

Publication number Publication date
JPS57122299A (en) 1982-07-30
PT74054A (fr) 1981-12-01
ATE5746T1 (de) 1984-01-15
FR2495028B1 (de) 1984-08-24
ES507574A0 (es) 1982-11-01
DE3161804D1 (en) 1984-02-02
PT74054B (fr) 1983-11-22
FR2495028A1 (fr) 1982-06-04
CA1193108A (fr) 1985-09-10
EP0053355B1 (de) 1983-12-28
ES8300518A1 (es) 1982-11-01

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