EP0055700A2 - Vorrichtung zur inneren Reinigung von langen Rohren - Google Patents

Vorrichtung zur inneren Reinigung von langen Rohren Download PDF

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Publication number
EP0055700A2
EP0055700A2 EP81870053A EP81870053A EP0055700A2 EP 0055700 A2 EP0055700 A2 EP 0055700A2 EP 81870053 A EP81870053 A EP 81870053A EP 81870053 A EP81870053 A EP 81870053A EP 0055700 A2 EP0055700 A2 EP 0055700A2
Authority
EP
European Patent Office
Prior art keywords
drum
arm
barrel
axis
tube
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.)
Ceased
Application number
EP81870053A
Other languages
English (en)
French (fr)
Other versions
EP0055700A3 (de
Inventor
Adelin Marchandisse
Louis Crosset
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
Priority claimed from BE0/203360A external-priority patent/BE886912A/fr
Application filed by Individual filed Critical Individual
Publication of EP0055700A2 publication Critical patent/EP0055700A2/de
Publication of EP0055700A3 publication Critical patent/EP0055700A3/de
Ceased 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
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/045—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices being rotated while moved, e.g. flexible rotating shaft or "snake"
    • 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
    • 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
    • F28G15/00—Details
    • F28G15/04—Feeding and driving arrangements, e.g. power operation

Definitions

  • the present invention relates to a hydro-pneumatic device for cleaning internally the long straight tubes of heat exchangers.
  • the internal cleaning of the heat exchanger tubes is done using a brush placed at the end of a gun and attached to a ribbon wound on a winder / unwinder device.
  • a hydraulic turbine propels the brush inside the tube to its end.
  • the winder / unwinder device rewinds the tape and brings the brush back to its starting position.
  • a first and essential drawback is that the apparatus must be adjusted precisely for each length of tube in order to prevent the brush from coming out at the opposite end of the tube, but it is however necessary for the brush to exceed this end so that the cleaning of the tube is carried out to this far end.
  • the length of the tape holding the brush must therefore be adjusted precisely.
  • the propulsion force of the brush must be adjusted at the level of the turbine to give the brush a propulsion speed adapted to the fouling of the tube, otherwise the brush does not clean the tube over its entire length or comes out of the tube at its distant end, which makes it difficult to return the brush and creates the risk of breakage of the ribbon which must hold the brush.
  • a second drawback of the known device is that it is heavy, in particular by the presence of the turbine.
  • the invention relates to an internal tube cleaning device which does not have the drawbacks of the known device. More particularly, it relates to a relatively light and handy device which is automatically suitable for cleaning tubes of any length without any preliminary adjustment. It also provides a cleaning apparatus which poses no pro- bl th seal.
  • the flexible elongate element preferably a round cable wrapped, is rolled onto a drum mounted to be freely rotatable about its axis, said drum being asso- latter é in assembled brake arm to be pivotable about an axis parallel to the axis of rotation of the drum, the arm having at its free end a passage for the flexible elongated element so that the arm is in the raised position when the flexible elongated element is stretched and is in the lowered position when the element elongated flexible has slack.
  • the arm is provided with a gasket disposed and contoured to fit against the edge of the drum when the arm is in the lowered position, so as to prevent the ROTA ti on the drum as soon as the flexible elongate member has slack .
  • the device for driving the drum in rotation in order to wind the cable comprises a pneumatic motor for driving a rotating roller and a pneumatic cylinder controlled at the same time as the motor in order to carry said roller against a rolling rib provided on the drum.
  • the gun which must be hand-held by the operator, is light and handy.
  • a simple pull applied to the cable releases the brake and releases the drum.
  • the tension on the cable decreases and the brake instantly stops the drum and retains the movable member, which is kept in line with the tube and does not may fall behind the tube or tilt relative to the axis of the tube.
  • the apparatus consists of a working pistol 10, of a movable member 20 adapted on the barrel of the working pistol 10 and comprising a brush connected to a cable attached to and wound on a pneumatic reel 30.
  • the working gun 10 is the member that the operator holds in his hand and which brings together all the controls for the use of the device.
  • Figure 2 shows an embodiment of the working gun.
  • a profiled handle 1 mounted on a ball joint 2 and a second handle 3 ensure easy gripping and holding of the gun in all working configurations.
  • the end of the barrel 4 receives the movable member 20, the cable 5 fixed to the brush passing through the barrel 4 to the return boot 6 and the cable 5 then extending to the reel.
  • the handle 3 is hollow and is connected by a pipe 7 to a water inlet.
  • the case 8 brings together all the commands necessary for the use of the device: a command 81 for the water intake valve (not shown) and a water intake command (see below).
  • the control circuit of the water inlet valve is connected to the fitting 18.
  • the end of the barrel 4 carries a sealing tip 9 whose outside diameter is adapted to the inside diameter of the tubes to be cleaned and whose role is to prevent the back flow of 'water.
  • the movable assembly 20 constitutes the cleaning member proper. It comprises a rigid hollow rod 11 at the end of which is fixed a head 12 furnished with an internal thread 13.
  • the rod 11 has a length sufficient to extend inside the barrel of the pistol over an appreciable part of the length of the barrel. A length of around 40 to 60 centimeters is considered satisfactory.
  • the base of the head 12 is pierced with an opening 14 for the passage of the end 51 of the cable 5 which crosses the rod 11.
  • the cable 5 is retained by the head 12.
  • a door end piece -brush 15 with interposition of sealing washers 16 whose diameter is adapted to the inside diameter of the tubes to be cleaned.
  • On the nozzle 15 is screwed the rod of the brush 17 (nylon or brass for example) whose diameter is adapted to the inner diameter of the tubes to be cleaned.
  • the design of the movable member 20 with rigid tube 11 ensures that the brush 17 is always held in place; the correct extension of the tube to be cleaned even beyond the far end of the tube to be cleaned without the risk of the brush falling behind the tube to be cleaned.
  • the device can be used for cleaning tubes of any length without having to first adjust the cable length and its: risk of mechanical stopping of the brush behind the far end of the tube to be cleaned.
  • the drum 21 has a peripheral throat rique 23 to receive the cable 5.
  • a cable guide device 24 is advantageously provided to prevent the turns of the cable from escaping from the groove.
  • the drum 21 is mounted on a support 25 making it possible to place the winding device 30 in any location near the tubes to be cleaned.
  • On the support 25 is mounted an arm 26 pivoting freely around a pivot 27 and the free end of which is fixed to a rubber lining 28 suitable for normally coming to rest on the peripheral edge of the drum 21, thus preventing the drum from turn.
  • the arm 26 advantageously has a U-shape, the two parallel branches being articulated on the pivot 27.
  • the transverse branch of the arm is pierced with a hole 29 for the passage of the cable 5.
  • a simple traction exerted on the cable 5 raises the arm 26 while when the cable has slack, the arm 26 falls and the lining 28 comes to rest on the drum 21.
  • the rotation of the drum 21 to wind the cable 5 is pneumatically controlled
  • the support 25 carries a pneumatic motor 31, a drive roller 32 and a control cylinder 33.
  • the compressed air coming from an external source is brought in 36 and applied to a valve 35.
  • the compressed air supply is also derived by the pipe 37 to the control unit 8 mounted on the gun 10 (fig. 2).
  • the valve 35 is controlled by an air supply returning from the control unit 8 by the pipe 38.
  • the air control handle 82 When the air control handle 82 is actuated on the gun 10, the valve 35 opens and admits air compressed in the motor 31 which then puts the roller 32 in rotation.
  • compressed air is admitted into the cylinder 33 through the conduit 39, and the cylinder 33 carries the roller 32 against a rolling rib 34 provided on the drum 21.
  • the latter is then rotated in the direction of arrow E as long as the arm 26 is in the raised position.
  • the lining 28 instantaneously immobilizes the drum 21.
  • the gun 10 being connected to a water inlet by the pipe 7 and to the pneumatic system by the pipes 37 and 38, the operator takes the gun 10 on which is fitted the mobile ortane 20 and introduces the brush 17 to the inside the tube to be cleaned, perfectly closing the tube orifice by means of the sealing nozzle 9. He then actuates the lever 81 (fig. 2) and controls the admission of water, the pressure of which propels the organ mobile 20 inside the tube to be cleaned, the brush 17 driving and tensioning the cable 5, the drum 21 turns freely, practically without any braking, the roller 32 then spaced from the rolling rib 34.
  • the brush 17 When the brush 17 reaches the end of the tube to be cleaned, the water escapes from the tube while the rod 11 remains inside the tube and prevents the brush from falling or tilting with respect to the axis of the tube. At this time, the cable 5 takes up slack and the brake arm 26 falls automatically, almost instantaneously blocking the drum 21.
  • the operator then cuts off the water intake and using the lever 82, he controls the air intake in the motor 31 of the reel and in the jack 33.
  • the motor 31 drives the roller 32 in rotation while the jack 33 carries the roller 32 against the rolling rib 34 of the drum 21.
  • the traction exerted on the 5 m cable maintains the arm 26 in the raised position and the drum is rotated, bringing the brush 17 to the entrance of the tube.
  • the device is then ready to be used for another tube.
  • a manual brake is advantageously provided on the winding / unwinding 30 in the form of a screw 41 comprising a pad adapted to rub more or less strongly on the drum 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
EP81870053A 1980-12-30 1981-12-23 Vorrichtung zur inneren Reinigung von langen Rohren Ceased EP0055700A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE203360 1980-12-30
BE0/203360A BE886912A (fr) 1980-12-30 1980-12-30 Appareil pour nettoyer interieurement des tubes longs.

Publications (2)

Publication Number Publication Date
EP0055700A2 true EP0055700A2 (de) 1982-07-07
EP0055700A3 EP0055700A3 (de) 1983-01-12

Family

ID=3843392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81870053A Ceased EP0055700A3 (de) 1980-12-30 1981-12-23 Vorrichtung zur inneren Reinigung von langen Rohren

Country Status (1)

Country Link
EP (1) EP0055700A3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214597A (en) * 1988-01-08 1989-09-06 David Lynch Boiler cleaning apparatus
WO1991004452A1 (de) * 1989-09-12 1991-04-04 Bernd Weigel Gerät zur innenreinigung der rohre eines wärmetauschers
EP0473234A1 (de) * 1990-08-31 1992-03-04 Stork Nedserv B.V. Reinigungslanze zur Reinigung von Wärmetauscher-Rohrbündeln
US5307866A (en) * 1989-09-12 1994-05-03 Bernd Weigel Apparatus for cleaning the inside of pipes in a heat exchanger

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB526463A (en) * 1938-03-16 1940-09-18 Max Reymer Improvements in and relating to soot blowers
US2462972A (en) * 1946-11-05 1949-03-01 Thomas M Johnson Slack controlling device for cables
US2659540A (en) * 1949-10-17 1953-11-17 Harry J Sketchley Conduit reaming machine
FR1064151A (fr) * 1952-10-06 1954-05-11 Zeitler & Co Fa Dispositif de nettoyage pour chaudières
US3293680A (en) * 1966-02-17 1966-12-27 Wilson Paul Tool for cleaning heat exchanging surfaces and the like
FR1564555A (de) * 1968-02-19 1969-04-25
US3612487A (en) * 1968-09-24 1971-10-12 William E Raney Device for pushing and pulling implements, including cables, into and from conduits and the like
FR2030551A5 (de) * 1969-08-28 1970-11-13 Allera Martial

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214597A (en) * 1988-01-08 1989-09-06 David Lynch Boiler cleaning apparatus
WO1991004452A1 (de) * 1989-09-12 1991-04-04 Bernd Weigel Gerät zur innenreinigung der rohre eines wärmetauschers
US5307866A (en) * 1989-09-12 1994-05-03 Bernd Weigel Apparatus for cleaning the inside of pipes in a heat exchanger
EP0473234A1 (de) * 1990-08-31 1992-03-04 Stork Nedserv B.V. Reinigungslanze zur Reinigung von Wärmetauscher-Rohrbündeln

Also Published As

Publication number Publication date
EP0055700A3 (de) 1983-01-12

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