EP0631103A2 - Vorrichtung zur Reinigung von Rohren mit Verformbaren Kugeln - Google Patents

Vorrichtung zur Reinigung von Rohren mit Verformbaren Kugeln Download PDF

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Publication number
EP0631103A2
EP0631103A2 EP94401382A EP94401382A EP0631103A2 EP 0631103 A2 EP0631103 A2 EP 0631103A2 EP 94401382 A EP94401382 A EP 94401382A EP 94401382 A EP94401382 A EP 94401382A EP 0631103 A2 EP0631103 A2 EP 0631103A2
Authority
EP
European Patent Office
Prior art keywords
balls
tank
water
valves
piston
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
EP94401382A
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English (en)
French (fr)
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EP0631103B1 (de
EP0631103A3 (de
Inventor
André Bizard
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Technos et Cie
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Technos et Cie
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Publication date
Application filed by Technos et Cie filed Critical Technos et Cie
Publication of EP0631103A2 publication Critical patent/EP0631103A2/de
Publication of EP0631103A3 publication Critical patent/EP0631103A3/de
Application granted granted Critical
Publication of EP0631103B1 publication Critical patent/EP0631103B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

  • this impregnation is to purge the air contained in the open cells of the spongy structure of the balls in order to give these balls an apparent density very close to that of water: if the air of the balls was not purged , the balls would be lighter than water and they would tend to float and clean only the upper part of the tubes, generally horizontal, of the condenser or the like.
  • the impregnation of the balls is most often done manually by kneading the balls under water before their injection into the closed cleaning circuit comprising the tubes to be cleaned.
  • the invention relates very generally to the above-described tube cleaning installations and more particularly, but not exclusively, the methods and devices for impregnating the cleaning balls used with water with these installations.
  • the balls impregnation devices of the type in question according to the invention also comprise a reservoir interposed between a first and a second valve associated respectively with a water intake pipe and with a water discharge pipe.
  • water a fitting fitted with a third valve connecting the top of the tank to a source of new cleaning balls, a mesh grid too small to let the balls go inside the tank so as to reserve at the top of the tank -a chamber inaccessible to the balls, a pipe equipped with a fourth valve connecting said chamber to an evacuation and a device capable of generating a vacuum in this chamber, and they are essentially characterized in that the vacuum generating device is constituted by a piston cylinder or the like of which one of the two compartments separated by the piston or the like communicates with the chamber in such a way that each reciprocation of the piston successively generates an increase of a well-defined quantity of the volume defined by the interior of the tank and by the spaces which communicate with this interior, when the four valves above tank service are closed, then a cancellation of this increase.
  • the impregnation methods using the above devices they are essentially characterized according to the invention by the following steps: the first two valves being closed and the other two open, are introduced into the tank a charge of new balls through the third valve; then, the second and third valves being closed and the other two open, water is admitted to the tank until it is completely filled with water; then, all the four valves being closed, the piston or the like is actuated in the direction which corresponds to an increase in the volume in communication with the interior of the tank, which subjects this volume to a vacuum by emptying at least partially the balls of the air they contain, air which is collected in the upper chamber of the tank and the capacity which communicates with this chamber; after which the first and fourth valves are opened so as to fill again with water all of the volumes considered, which impregnates the balls at least partially emptied of air and the piston or the like is actuated in the opposite direction to the previous one to return it to its initial position, the cycle of the two above-defined steps which use the piston or the like back and forth which
  • the invention includes, apart from these main provisions, certain other provisions which are preferably used at the same time and which will be more explicitly discussed below.
  • FIGS 1 to 3 of these drawings schematically show a device, established in accordance with the invention, for impregnating cleaning balls with water, this device being mounted in respectively three different operating phases.
  • Figure 4 shows schematically a ball cleaning installation equipped with such a device.
  • FIG. 5 schematically shows, on the one hand, a preferred construction method proposed in accordance with the invention for the impregnation device and, on the other hand, the preferred association of this device with other accessories known per se .
  • the balls 1 to be impregnated with water are spongy rubber balls with open porosity.
  • the device shown in Figures 1 to 3 comprises a reservoir 2 served in the vicinity of its base by a water inlet pipe 3 equipped with a first valve 4 and, near its top, by an outlet pipe d water 5 equipped with a second valve 6.
  • the top of the tank 2 is connected, through a third valve 7, to a hopper 8 for receiving new balls 1.
  • the upper portion of the reservoir 2 is crossed by a horizontal grid 9 which delimits above it an enclosure 10.
  • This enclosure is itself crossed by a vertical corridor delimited laterally by a cylindrical grid 11 communicating the connection of the hopper 8, equipped with the valve 7 with the inside of the tank 2.
  • the meshes of the mesh elements 9 and 11 are small enough not to be able to be crossed by the balls 1 and large enough so that no only negligible pressure drop is suffered by the water during its passage through these meshes.
  • a float 12 constituted for example by a hollow ball filled with air, is arranged, in a structure light guide 13 constituted in particular by metal rods, just below the lower mouth of the screened passage 11 so as to be able to release this mouth for its normal rest position illustrated in FIG. 1 and on the contrary close this mouth for its high position shown in Figures 2 and 3.
  • the enclosure 10 is connectable to the atmosphere, or more precisely to an evacuation pipe, by a pipe 14 equipped with a fourth valve 15.
  • a jack 17 comprising here a cylinder 18 and a piston 19 with rod 20 is placed in communication with the reservoir 2 as follows: one A of the two chambers A and B, of the cylinder 18, separated by the piston 19, is directly connected to the portion of the pipe 14 which is located between the tank 2 and the valve 15.
  • the portion of the pipe 14 which is located downstream of the valve 15 is here directly connected to the discharge pipe 5, which opens out below a receiving basket 21.
  • the tank 2 is empty in the sense that it contains neither water nor ball, and the valves 4, 6 and 23 are closed.
  • the upper level of the charge of balls thus introduced must not exceed, inside the tank 2, that of the base of the float 12.
  • valve 7 is then closed and the two valves 4 and 15 are opened.
  • the water is then introduced into the tank 12 and the level of this water rises in the said tank, the air content of which escapes through the pipe 14, the valve 15 open and the pipe 5.
  • the handle 27 is then pulled so as to create a certain depression in the capacity defined above, which causes part of the air contained in the balls to be evacuated, as visible in FIG. 3.
  • valve 4 is opened, which admits a new volume of water inside the tank 2 , volume which impregnates the balls 1 at least partially emptied of their initial air.
  • valve 15 is opened to expel the air from the circuit and make it possible to completely refill the water capacities.
  • the impregnation of the water balls is incomplete if the cylinder capacity, that is to say the volume of air or water displaceable in the chamber A during each back-and-forth comes complete from the piston 19, is insufficient, relative to the volume of water with which it is desired to impregnate the balls.
  • the impregnation of these balls may require more than two successive cycles.
  • the number of cycles required can be determined as follows.
  • the pressure P is less than 0.2 bar so that the balls are sufficiently impregnated, that is to say so that their apparent density is sufficiently close to that of water.
  • the balls introduced into the tank 2 are only properly impregnated with water if the volume of the air they initially contain is less than or equal to the maximum calculated volume acceptable as a function of the displacement V of the cylinder and the number of cycles provided for it.
  • agitator means can be provided in the hopper 8 or on it to ensure that the balls descend by simple gravity into the airlock 26 as soon as the upper drawer 24 is opened, which opening can be slaved to a closure lower drawer 25.
  • Figure 5 shows in its right part another construction of the impregnating device described above.
  • the structure 13 for supporting and guiding the float 12 is here supported by a grid 16 which passes through the interior of the tank 2 a little above the membrane 29.
  • This grid 16 like the grid 9, is arranged so that it cannot be crossed by the balls.
  • the tubes 38 in question which form a horizontal bundle, are supplied with cold water from a line 39 and the heated water which leaves these tubes is discharged through a line 40.
  • This pipe 40 is equipped with a grid device 41 for recovering the cleaning balls and the recycling piping 37 is itself equipped with a circulation pump 42, an airlock 43 used to collect the balls when wishes to stop their circulation, then, at its downstream end, of an injection nozzle 44 of the balls opening into the intake pipe 39.
  • valve 4 for admitting water into the impregnating device as well as the pipe 5 for output from this device and its loading hopper 8 associated with the corresponding valve 7.
  • the impregnated balls which exit from the reservoir through the pipe 5 are directly injected into the recycling tube 37 instead of being collected in the basket 21.
  • the above impregnating device is also associated with a ball sorter of the type which is the subject of document US-A-4,974,662 as well as a ball counter of the kind of those currently known.
  • the assembly thus formed makes it possible to ensure fully automatic operation of the cleaning installation in question.
  • the continuous cleaning of the tubes 38 is only effective if the diameter of the balls is greater than that of the internal diameter of the tubes to be cleaned and if the number of balls in circulation is sufficient for the time separating on average two consecutive ball passes in the same tube is not too high.
  • the sorter which is the subject of the above patent makes it possible to permanently remove worn balls whose diameter has become too small from the circuit.
  • the ball counter permanently measures the number of balls remaining in circulation: when this number of balls becomes insufficient to ensure effective cleaning, that is to say when the number of missing balls reaches a pre-established threshold, said counter sends a signal indicating that a load of new balls must be reinjected into the cleaning circuit.
  • the impregnation device described above is sized according to the desired size for this charge of new balls and it allows this charge to be reinjected into the circuit as soon as the counter gives it the signal.
  • the ball counter mounted on the recycling line 37 is designated by the reference 45.
  • the sorter 46 is mounted on the same pipe just downstream from the counter 45.
  • the used balls whose diameter has become too small are deflected by a line 47 towards a used ball collector 48 whose base, in the form of a truncated cone or the like, communicates with a valve 49 for emptying the used balls.
  • the manifold 48 is connected to the water intake pipe 3 above, equipped with the valve 4.
  • a grid 50 mounted in this collector prevents worn balls from having access to this pipe 3.
  • a gate valve 51 mounted on said pipe 3 makes it possible to fine-tune the selection made by the sorter 46.
  • the assembly is then ready to accomplish again the continuation of the above operations which automatically make it possible to remove a given load of used balls and to introduce an equivalent load of new balls after having impregnated them with water.
  • This device has significant advantages over those previously known and in particular the following.
  • This hopper can be significant, its filling into balls requires in practice only two or three interventions per year, which represents a significant saving in labor compared to current installations for which the impregnation of the balls to be injected must be carried out manually several times a month.
  • the possible automation of the entire installation makes it possible to give the cleaning of the condenser or the like a high degree of security since, with this installation, it is ensured that the balls in circulation ensuring the cleaning are at all times on the one hand, in sufficient number, and on the other hand, in a state of low wear for which the cleaning efficiency is high.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP94401382A 1993-06-22 1994-06-20 Vorrichtung zur Reinigung von Rohren mit verformbaren Schwammkugeln Expired - Lifetime EP0631103B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9307547 1993-06-22
FR9307547A FR2706788B1 (de) 1993-06-22 1993-06-22

Publications (3)

Publication Number Publication Date
EP0631103A2 true EP0631103A2 (de) 1994-12-28
EP0631103A3 EP0631103A3 (de) 1995-08-09
EP0631103B1 EP0631103B1 (de) 1998-05-06

Family

ID=9448407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401382A Expired - Lifetime EP0631103B1 (de) 1993-06-22 1994-06-20 Vorrichtung zur Reinigung von Rohren mit verformbaren Schwammkugeln

Country Status (9)

Country Link
US (1) US5482111A (de)
EP (1) EP0631103B1 (de)
JP (1) JP2911022B2 (de)
KR (1) KR100246112B1 (de)
CA (1) CA2126282C (de)
DE (1) DE69410018T2 (de)
ES (1) ES2115173T3 (de)
FR (1) FR2706788B1 (de)
TW (1) TW295256U (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2825794A1 (fr) * 2001-06-12 2002-12-13 Beaudrey C S Dispositif pour le mouillage d'elements de nettoyage pour echangeur de chaleur tubulaire, et echangeur de chaleur tubulaire equipe d'un tel dispositif
WO2018149934A1 (en) * 2017-02-17 2018-08-23 Otek Engineering Jerzy Domeracki Method and device for cleaning a channel using a diaphragm pump module

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006009515A1 (en) * 2004-07-16 2006-01-26 Hydroactive Veloball International System and apparatus for non-powered cleaning of tubular heat exchange systems
SG125150A1 (en) * 2005-02-17 2006-09-29 Hydroactive Veloball Internat Device for cleaning tubes
US7996946B1 (en) * 2005-11-02 2011-08-16 Bruce Riley Cleaning projectile verification system
CN101504263B (zh) * 2009-03-04 2011-11-16 沈忠东 一种凝汽器胶球清洗装置
WO2010114479A1 (en) * 2009-03-31 2010-10-07 Hydroball Technics Holdings Pte Ltd Cleaning system for cleaning tubing
CN103090719B (zh) * 2013-02-05 2014-10-29 倪永刚 一种水冷冷水机组管壳式冷凝器多功能胶球自动在线清洗装置一体机
KR101498719B1 (ko) * 2013-09-16 2015-03-06 주식회사 이엠이 열교환기 튜브 세정용 스펀지 볼 탈기함수 장치
CN113898822A (zh) * 2021-09-27 2022-01-07 海洋石油工程股份有限公司 一种跨接管水推球装置及方法
CN114289425B (zh) * 2021-11-17 2023-10-13 渤海造船厂集团有限公司 一种用于管道拉洗的风动往复式海绵球发射装置
CN114111435A (zh) * 2021-11-22 2022-03-01 神华国华寿光发电有限责任公司 胶球系统
CN114378073B (zh) * 2021-12-13 2022-11-25 天舜(杭州)食品股份有限公司 管道清洗系统及使用方法
KR102828240B1 (ko) * 2024-10-14 2025-07-18 한국남동발전 주식회사 함수 장치
CN119114358B (zh) * 2024-11-12 2025-01-24 四川简阳海特有限公司 一种铸造流涂设备

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JPS534567B2 (de) * 1973-05-28 1978-02-18
US3919732A (en) * 1973-11-08 1975-11-18 Tokyo Shibaura Electric Co Descaling system for condenser cooling tubes
JPS6017999B2 (ja) * 1980-06-30 1985-05-08 株式会社日立製作所 管式熱交換器用連続洗浄装置
JPS5714190A (en) * 1980-06-30 1982-01-25 Hitachi Ltd Soaking method for porous cleaning ball
KR860000855B1 (ko) * 1980-06-30 1986-07-09 가부시기가이샤 히다찌 세이사꾸쇼 열교환기 열전도 도관의 세정장치
JPS5719598A (en) * 1980-07-07 1982-02-01 Toshiba Corp Cleaning equipment for condenser tube of heat exchanger
JPS57144898A (en) * 1981-03-03 1982-09-07 Toshiba Corp Hydrating treatment device for cleaning balls
JPS58124198A (ja) * 1982-01-20 1983-07-23 Hitachi Ltd スポンジボ−ル含水器
DE3316020C1 (de) * 1983-03-17 1984-08-30 Taprogge GmbH, 4000 Düsseldorf Verfahren und Anordnung zur UEberwachung der Betriebsfaehigkeit einer Einrichtung fuer die Reinigung der Roehren einer Kraftwerkskondensatoranlage o.dgl.
US4569097A (en) * 1983-11-23 1986-02-11 Superior I.D. Tube Cleaners Incorporated Tube cleaners
JPS61128098A (ja) * 1984-11-26 1986-06-16 Toshiba Corp 復水器冷却管洗浄用ボ−ルの含水方法
US4984629A (en) * 1989-09-13 1991-01-15 Water Services Of America, Inc. Ball collector and filling apparatus for circulating ball cleaning system
US5176204A (en) * 1990-12-27 1993-01-05 Balls-Technics Ltd. Cleaning system for cleaning fluid-conducting tubing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2825794A1 (fr) * 2001-06-12 2002-12-13 Beaudrey C S Dispositif pour le mouillage d'elements de nettoyage pour echangeur de chaleur tubulaire, et echangeur de chaleur tubulaire equipe d'un tel dispositif
WO2018149934A1 (en) * 2017-02-17 2018-08-23 Otek Engineering Jerzy Domeracki Method and device for cleaning a channel using a diaphragm pump module
US11697139B2 (en) 2017-02-17 2023-07-11 Otek Engineering Jerzy Domeracki Method and device for cleaning a channel using a diaphragm pump module
US12157151B2 (en) 2017-02-17 2024-12-03 Otek Engineering Jerzy Domeracki Method and device for cleaning a channel using a diaphragm pump module

Also Published As

Publication number Publication date
KR100246112B1 (ko) 2000-04-01
DE69410018D1 (de) 1998-06-10
FR2706788A1 (de) 1994-12-30
EP0631103B1 (de) 1998-05-06
FR2706788B1 (de) 1995-08-25
US5482111A (en) 1996-01-09
EP0631103A3 (de) 1995-08-09
CA2126282C (en) 2002-08-13
CA2126282A1 (en) 1994-12-23
DE69410018T2 (de) 1998-12-17
TW295256U (en) 1997-01-01
ES2115173T3 (es) 1998-06-16
JP2911022B2 (ja) 1999-06-23
KR950000232A (ko) 1995-01-03
JPH0755389A (ja) 1995-03-03

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