FR2491785A1 - Hydraulic chimney or drain cleaner - has multiple piston pig with upper and lower scrapers reciprocated above treatment fluid spray - Google Patents

Hydraulic chimney or drain cleaner - has multiple piston pig with upper and lower scrapers reciprocated above treatment fluid spray Download PDF

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Publication number
FR2491785A1
FR2491785A1 FR8021559A FR8021559A FR2491785A1 FR 2491785 A1 FR2491785 A1 FR 2491785A1 FR 8021559 A FR8021559 A FR 8021559A FR 8021559 A FR8021559 A FR 8021559A FR 2491785 A1 FR2491785 A1 FR 2491785A1
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France
Prior art keywords
duct
hydraulic
cylinder
cylinders
cleaning
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Pending
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FR8021559A
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French (fr)
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Individual
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Priority to FR8021559A priority Critical patent/FR2491785A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/32—Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
    • F16L55/34—Constructional aspects of the propulsion means, e.g. towed by cables being self-contained the pig or mole being moved step by step
    • 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
    • B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
    • 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
    • B08B9/0558—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 with additional jet means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Cleaning In General (AREA)

Abstract

The pipe for cleaning drains uses two cylinders each controlling a scraper tool reciprocated inside the shaft. The scrapers are above and below the cylinders which are interconnected by a main cylinder with a larger stroke, all the cylinders being operated cyclically. Each outer cylinder forms part of an assembly with two end plates connected by leaf springs at each side. The cylinders are supplied by a pump driven by an electric motor or i.c. engine, and used with control valves. Each scraper consists of a steel blade 3 or 4 mm larger in diameter than the bore of the conduit and with openings so that it can be bent into a convex or concave shape for insertion. A pump also supplies a liquid discharge jet below the cylinders, for treatment fluid.

Description

L'appareil proposé par l'invention est destiné au ramonage automatique de conduits de fumée ou de vide-ordures et répond à un problème jusqu'à ce jour sans réponse puisque traité manuellement par deux opérateurs situés à chaque extrémité du conduit, ou par un saul opérateur, situé en bas du conduit, muni de cannes souples juxtaposées, la première pourvue d'un hérisson venant gratter la face interne. Passé un certain diamètre, ou pour des résidus importants, tel que remarqué dans les vide-ordures, un tel appareillage est inefficace et impossible à manoeuvrer par un ouvrier. The device proposed by the invention is intended for the automatic sweeping of smoke or garbage pipes and responds to a problem to date unanswered since treated manually by two operators located at each end of the pipe, or by a saul operator, located at the bottom of the conduit, provided with flexible juxtaposed canes, the first provided with a hedgehog scratching the internal face. After a certain diameter, or for large residues, as noted in the garbage dumps, such equipment is ineffective and impossible to operate by a worker.

Selon l'invention, le ramonage est obtenu par deux râcleurs (rep. 14 fig. 1) disposés sur un vérin à double effet (rep. 11 - fig. 1), l'un solidaire du corps de vérin, le second de la tige de vérin. Le diamètre du racleur est supérieur au diamètre du conduit de quelques millimètres, des fentes pratiquées sur les lames permettant l'introduction dans le conduit en provoquant convexité ou concavité à la lame durant sa progression montante ou descendante.  According to the invention, sweeping is obtained by two scrapers (rep. 14 fig. 1) arranged on a double-acting cylinder (rep. 11 - fig. 1), one secured to the cylinder body, the second of the cylinder rod. The diameter of the scraper is greater than the diameter of the conduit by a few millimeters, slots made on the blades allowing the introduction into the conduit by causing convexity or concavity to the blade during its upward or downward progression.

Le vérin est alimenté par l'intermédiaire d'un groupe thermique (rep. 1 fig. 1) entrainant une pompe h draulique (rep 2 - fig. 1). La liaison entre pompe et vérin s'effectue par deux tuyauteries caoutchouc armé (rep. 6 et 6 b. - fig. 1) lgune d'alimentation, ion, la seconde de retour d'huile sur un vase d'expansion servant de nourrice à la pompe (rep. 7 - fig. 1). Un distribu teul tournant (rep. 4 - flg. 1) permet le stockage de 50 ni. de tuyauterie sur un tambou: (rep. 5 - fig. 13.Le tambour assure le déroulement du tuyau sous intervention d'ouvrier lors de la montée, par contre, l'enroulement est manuel lors de la descente de l'appareil ramoneur. The cylinder is supplied via a thermal group (rep. 1 fig. 1) driving a hydraulic pump (rep 2 - fig. 1). The connection between pump and cylinder is made by two reinforced rubber pipes (ref. 6 and 6 b. - fig. 1) supply range, ion, the second oil return on an expansion tank serving as a nurse at the pump (ref. 7 - fig. 1). A rotating lime dispenser (rep. 4 - fig. 1) allows the storage of 50 ni. of piping on a drum: (ref. 5 - fig. 13. The drum ensures the unwinding of the pipe under the intervention of a worker during the ascent, on the other hand, the winding is manual when the chimney sweeper descends.

Pour garantir la progression du vérin dans le conduit (rep. 15 - fig 1) un dispositif annexe est ajouté aux racleurs. Deux vérins (rep. B et C fig Z et rep 12 - flg. 1) agissent sur des lames d'acier à ressort (rep. Afig. 2) porteuses de crampons tzep. E - fig. 2). Dans la position montée, vérin annexe supérieur ouvert (rep. C - fig. 2) les lames sont en position de plus faible diamètre (rep. C - fig. 2). Lorsque le vérin est rentré (rep. B - fig. 2) les lames sont en appui sur le conduit et assurent l'ancrage de l'ensemble par l'intermédiaire des crampons. To guarantee the progression of the jack in the duct (ref. 15 - fig 1) an additional device is added to the scrapers. Two cylinders (ref. B and C fig Z and rep 12 - fig. 1) act on spring steel blades (ref. Afig. 2) carrying tzep crampons. E - fig. 2). In the assembled position, upper auxiliary cylinder open (ref. C - fig. 2) the blades are in the position of smaller diameter (ref. C - fig. 2). When the jack is retracted (ref. B - fig. 2) the blades are supported on the duct and anchor the assembly by means of the studs.

La progression de l'ensemble dans le conduit s'opère de la façon suivante - Phase I (fig. 3): lorsque le vérin principal est en position tige rentrée, le vérin additionnel inférieur est en position tige rentrée, donc racleur et ressorts immobilisant le corps de vérin dans le conduit, alors que le vérin annexe supérieur, solidaire de la tige de vérin, est en position sortie de déverrouillage. The progression of the assembly in the duct takes place as follows - Phase I (fig. 3): when the main cylinder is in the retracted rod position, the lower additional cylinder is in the retracted rod position, therefore scraper and immobilizing springs the cylinder body in the conduit, while the upper auxiliary cylinder, integral with the cylinder rod, is in the unlocked out position.

- Phase Il (fig. 3): le vérin principal est alimenté en huile, la tige sort jusqu'à fin de course possible.- Phase II (fig. 3): the main cylinder is supplied with oil, the rod comes out until possible end of travel.

- Phase III : le distributeur (rep. 8 - fig 1) s'inversant automatiquement à fin de course, l'huile est admise dans le 2ème effet du vérin et, préférentiellement sous l'effet du clapet (rep. 10 - fig. 1) dans le vérin annexe supérieur (rep. C - fig. 2) alors que le vérin annexe inférieur est déverrouillé.- Phase III: the distributor (ref. 8 - fig 1) reversing automatically at the end of the stroke, oil is admitted into the 2nd effect of the jack and, preferably under the effect of the valve (ref. 10 - fig. 1) in the upper auxiliary cylinder (ref. C - fig. 2) while the lower secondary cylinder is unlocked.

- Phase IV : sous l'action de la pression d'huile, le corps de vérin remonte.- Phase IV: under the action of oil pressure, the cylinder body rises.

A fin de course, le distributeur (rep. 8 - fig. 1) s'inverse à nouveau provoquant l'inversion des vérins annexes et ramenant la situation au niveau de la phase I. L'ensemble a alors franchi un pas d'avance stylisé fig. 3, corres- pondant à la course du vérin principal.At the end of the stroke, the distributor (rep. 8 - fig. 1) reverses again causing the inversion of the auxiliary cylinders and bringing the situation back to the level of phase I. The assembly then took a step ahead stylized fig. 3, corresponding to the stroke of the main cylinder.

Pour assurer la désinfection l'appareil, selon l'invention, est enfin pourvu d'une pompe et d'un réservoir contenant une solution bactéricide désodori sante -Tep. 3 - fig. 1). La pompe est entrainée par courroie par le groupe moteur thermique. Une tuyauterie (rep. 16 0 fig. 1) assure la distribution du liquide jusqu'à un pulvérisateur annulaire (rep. 17 - fig. 1) solidaire de la tette de nettoyage.Un dispositif by-pass permet d'opérer à sec si l'opérateur le désire; il suffit alors de fermer une vanne, un clapet de sécurité agissant alors en décharge retourne la solution au bac de stockage. To ensure disinfection, the device according to the invention is finally provided with a pump and a reservoir containing a deodorizing bactericidal solution. 3 - fig. 1). The pump is belt driven by the heat engine group. A pipe (ref. 16 0 fig. 1) distributes the liquid to an annular sprayer (ref. 17 - fig. 1) secured to the cleaning tette. A bypass device allows to operate dry if the operator so desires; it then suffices to close a valve, a safety valve acting then in discharge returns the solution to the storage tank.

Les schémas des planches 4 - 5 - 6 - 7 montrent les circuits permis par le distributeur et l'inverseur de mouvement dans les phases de montée et descente, soit 1P Montée 1 :le distributeur F assure, avec l'appui du clapet à action préférentielle E, l'alimentation du vérin annexe inférieur SE; qui verrouille l'appareil ramoneur dans le conduit. Le vérin principal A se développe jusqu'à fin de course. The diagrams of plates 4 - 5 - 6 - 7 show the circuits permitted by the distributor and the movement reverser in the ascent and descent phases, i.e. 1P Ascent 1: the distributor F ensures, with the support of the action valve preferential E, the supply of the lower annex cylinder SE; which locks the chimney sweeper in the duct. The main cylinder A develops until the end of travel.

20 Montée 2 : le distributeur F stinverse automatiquement sous l'effet de la surpression résultant de l'arrivée à fin de course du vérin A et, avec l'appui du clapet D, alimente préférentiellement le vérin C qui immobilise l'appareil ramoneur. Le clapet D se libérant admet l'huile qui provoque le relevage du corps de vérin A, alors que le vérin C, en position ouverte, a déverrouillé la partie inférieure. 20 Ascent 2: the distributor F reverses automatically under the effect of the overpressure resulting from the arrival at the end of stroke of the jack A and, with the support of the valve D, preferentially feeds the jack C which immobilizes the chimney sweeper. The releasing valve D admits the oil which causes the cylinder body A to be raised, while the cylinder C, in the open position, has unlocked the lower part.

30 Descente 1 : la fonction de descente est identique à la fonction de montée, à ceci près que l'alimentation des vérins annexes (rep. 3 et C) est inversée par l'intermédiaire de l'inverseur G. L'inverseur O etant sollicité, le distributeur F assure, avec l'appui du clapet à action préférentielle E, l'immobilisation du vérin A dans le conduit, par contraction du vérin B Le vérin A se développe, amorçant la descente, alors que le vérin additionnel C développé déverrouille la partie basse.30 Lowering 1: the lowering function is identical to the raising function, except that the supply to the auxiliary cylinders (ref. 3 and C) is reversed via the inverter G. The inverter O being solicited, the distributor F ensures, with the support of the preferential action valve E, the immobilization of the cylinder A in the conduit, by contraction of the cylinder B The cylinder A develops, initiating the descent, while the additional cylinder C developed unlocks the lower part.

40 Descente 2 : A la fin de course du vérin A, l'inverseur F S'inverse alors que G demeure en position descente. Sous l'action préférentielle du clapet D, le vérin C se rétracte, alors que le vérin B se développe. Le vérin A se contracte alors selon le schéma fig. 6. A la fin de course, l'inverseur F est à nouveau sollicité pour reprendre le processus de descente 1, et ainsi de suite. 40 Lowering 2: At the end of stroke of cylinder A, the reverser F reverses while G remains in the lowering position. Under the preferential action of the valve D, the cylinder C retracts, while the cylinder B develops. The jack A then contracts according to the diagram in fig. 6. At the end of the race, the reverser F is again requested to resume the descent process 1, and so on.

En cas d'arrêt du moteur pendant la progression dans le conduit, que
ce soit en montée ou en descente, les racleurs position concave ou convexe
assurent la retenue de l'ensemble pour éviter la chute dans le conduit. If the engine stops during progression in the duct,
either uphill or downhill, the scrapers concave or convex position
ensure the retention of the assembly to avoid falling into the conduit.

Claims (4)

REV:ENDICATIONS 1 O) - Appareil de nettoyage de conduits type fumée ou vide-ordures, à mouvement de progression discontinue, réalisé à partir d'un vérin hydraulique alimenté par pompe elle-m#rne entrainée par moteur thermique ou électrique.REV: ENDICATIONS 1 O) - Apparatus for cleaning smoke or refuse chute type conduits, with discontinuous progression movement, produced from a hydraulic cylinder powered by a pump itself driven by a heat or electric motor. 20) - Appareil comme en 1, caractérisé en ce que deux racleurs sont adaptés l'un sur le corps, l'autre sur la tige de vérin, les racleurs constitués de lame d'acier prévues 3 à 4 mm. au-delà du diamètre du conduit à ramoner.20) - Apparatus as in 1, characterized in that two scrapers are adapted one on the body, the other on the cylinder rod, the scrapers made of steel blade provided 3 to 4 mm. beyond the diameter of the duct to be swept. Des fentes, pratiquées sur les lames, permettent l'introduction dans le conduit sous déformation convexe ou concave, suivant que l'appareil monte ou descend dans le conduit.Slits, made on the blades, allow the introduction into the duct under convex or concave deformation, depending on whether the device goes up or down in the duct. 30) - Appareil comme en 1 et 2, caractérisé en ce que le verrouillage en position dans le conduit est obtenu par deux vérins additionnels agissant sur deux volants reliés entre eux par des ressorts à lame venant prendre appui sur le conduit lorsque le vérin est sollicité.30) - Device as in 1 and 2, characterized in that the locking in position in the duct is obtained by two additional jacks acting on two flywheels connected to each other by leaf springs coming to bear on the duct when the jack is acted upon . 40) - Appareil comme en 1, 2 et 3, caractérisé en ce que l'alimentation hydraulique du vérin principal passe par un clapet taré rendant l'alimenta - tion sur les vérins additionnels préférentielle de façon à garantir le verrouillage avant tout déplacement du vérin porteur des tettes de nettoyage ou ramonage.40) - Device as in 1, 2 and 3, characterized in that the hydraulic supply to the main cylinder passes through a calibrated valve making the supply on the additional cylinders preferential so as to guarantee locking before any displacement of the cylinder carrying cleaning or sweeping tapes. 5 ) - Appareil comme en 1, 2, 3 et 4, caractérisé en ce qu il comporte un dispositif inverseur, électrique ou mécanique, manoeuvrable à distance et permettant d'obtenir montée ou descente de l'appareil par simple butée sur obstacle ou commande de l'opérateur. 5) - Device as in 1, 2, 3 and 4, characterized in that it comprises an inverter device, electric or mechanical, maneuverable from a distance and making it possible to obtain raising or lowering of the device by simple stop on obstacle or command operator. 60) - Appareil comme en 1, 2, 3, 4 et 5, caractérisé en ce qu'il comporte, au niveau du groupe thermique ou électrique entrainant la pompe hydraulique, une pompe destinée à permettre la pulvérisation d'une solution dégraissante, décapante, neutralisante, bactéricide et désodorisante, assurant le nettoyage du conduit. 60) - Apparatus as in 1, 2, 3, 4 and 5, characterized in that it comprises, at the level of the thermal or electric group driving the hydraulic pump, a pump intended to allow the spraying of a degreasing, stripping solution , neutralizing, bactericidal and deodorizing, ensuring the cleaning of the duct. 7 ) - Appareil comme en 1, 2, 3, 4, 5, et 6, caractérisé en ce que la liaison entre l'appareil de nettoyage et les pompe hydrauliques distribuant huile et solution acqueuse est assurée par tuyauterie haute pression à 3 conducteurs couplés ensemble ou sous une même gaine.  7) - Device as in 1, 2, 3, 4, 5, and 6, characterized in that the connection between the cleaning device and the hydraulic pumps distributing oil and aqueous solution is ensured by high pressure piping with 3 coupled conductors together or under one sheath.
FR8021559A 1980-10-09 1980-10-09 Hydraulic chimney or drain cleaner - has multiple piston pig with upper and lower scrapers reciprocated above treatment fluid spray Pending FR2491785A1 (en)

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FR8021559A FR2491785A1 (en) 1980-10-09 1980-10-09 Hydraulic chimney or drain cleaner - has multiple piston pig with upper and lower scrapers reciprocated above treatment fluid spray

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FR8021559A FR2491785A1 (en) 1980-10-09 1980-10-09 Hydraulic chimney or drain cleaner - has multiple piston pig with upper and lower scrapers reciprocated above treatment fluid spray

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538602A1 (en) * 1982-12-23 1984-06-29 Thome Paul Self-propelled equipment for checking the pipework of the primary circuit of nuclear power stations
FR2552346A1 (en) * 1983-09-23 1985-03-29 Gaz De France AUTONOMOUS DISPLACEMENT APPARATUS FOR ITS PROGRESS WITHIN A PIPING, IN PARTICULAR FOR ITS EXPLORATION AND / OR PROCESSING, AND / OR REMOTE TUBING
WO1987003063A1 (en) * 1985-11-15 1987-05-21 Bernard Havez Handling device
FR2664184A1 (en) * 1990-07-04 1992-01-10 Assainissement Produits Indls Method for working on the internal surfaces of chambers or sheaths, multifunctional device for cleaning or treating the internal surfaces
EP0623778A1 (en) * 1993-05-06 1994-11-09 Daimler-Benz Aerospace Aktiengesellschaft Pipeline inner leak testing device
WO2000037845A1 (en) * 1998-12-21 2000-06-29 Rico Mikroelektronik Gmbh Pipe robot
FR2802451A1 (en) * 1999-12-17 2001-06-22 R Marchal Et Cie Soc Tube cleaning apparatus uses two brushes of similar diameter fixed two parts of a piston, which can expand and doing so, vary the distance between the two brushes
FR2802450A1 (en) * 1999-12-17 2001-06-22 R Marchal Et Cie Soc Cleaning apparatus to brush the inside of a tube comprises two brushes and a drive having a diameter of the same size of the internal wall of the tube, mounted on two parts of a piston
WO2002047834A1 (en) * 2000-12-15 2002-06-20 R.Marchal & Cie Device and method for brush-cleaning a tube
WO2013135622A1 (en) * 2012-03-15 2013-09-19 Niebling Gmbh Cleaning and maintaining the inner surface of a pipe
WO2014072020A1 (en) * 2012-11-09 2014-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device capable of self-propulsion along a supporting structure, and use thereof
CN104438252A (en) * 2014-12-05 2015-03-25 中国石油天然气股份有限公司 Blade type tube cleaner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322394A (en) * 1965-10-04 1967-05-30 Chicago Pneumatic Tool Co Self-propelled bore traversing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322394A (en) * 1965-10-04 1967-05-30 Chicago Pneumatic Tool Co Self-propelled bore traversing device

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538602A1 (en) * 1982-12-23 1984-06-29 Thome Paul Self-propelled equipment for checking the pipework of the primary circuit of nuclear power stations
FR2552346A1 (en) * 1983-09-23 1985-03-29 Gaz De France AUTONOMOUS DISPLACEMENT APPARATUS FOR ITS PROGRESS WITHIN A PIPING, IN PARTICULAR FOR ITS EXPLORATION AND / OR PROCESSING, AND / OR REMOTE TUBING
EP0149370A2 (en) * 1983-09-23 1985-07-24 Gaz De France Auto-movable apparatus for movement in a tube, especially for exploring or working at a distance
EP0149370A3 (en) * 1983-09-23 1985-08-21 Gaz De France Auto-movable apparatus for movement in a tube, especially for exploring or working at a distance
US4601204A (en) * 1983-09-23 1986-07-22 Daniel Rouland Apparatus with means of self-displacement for its advance within a duct, in particular for remote inspection and/or treatment and/or tubing of said duct
WO1987003063A1 (en) * 1985-11-15 1987-05-21 Bernard Havez Handling device
FR2590196A1 (en) * 1985-11-15 1987-05-22 Havez Bernard HANDLING DEVICE
FR2664184A1 (en) * 1990-07-04 1992-01-10 Assainissement Produits Indls Method for working on the internal surfaces of chambers or sheaths, multifunctional device for cleaning or treating the internal surfaces
EP0623778A1 (en) * 1993-05-06 1994-11-09 Daimler-Benz Aerospace Aktiengesellschaft Pipeline inner leak testing device
WO2000037845A1 (en) * 1998-12-21 2000-06-29 Rico Mikroelektronik Gmbh Pipe robot
FR2802451A1 (en) * 1999-12-17 2001-06-22 R Marchal Et Cie Soc Tube cleaning apparatus uses two brushes of similar diameter fixed two parts of a piston, which can expand and doing so, vary the distance between the two brushes
FR2802450A1 (en) * 1999-12-17 2001-06-22 R Marchal Et Cie Soc Cleaning apparatus to brush the inside of a tube comprises two brushes and a drive having a diameter of the same size of the internal wall of the tube, mounted on two parts of a piston
WO2002047834A1 (en) * 2000-12-15 2002-06-20 R.Marchal & Cie Device and method for brush-cleaning a tube
US7005012B2 (en) * 2000-12-15 2006-02-28 R. Marchal & Cie Device and method for brush-cleaning a tube using a spray system taken into the tube
WO2013135622A1 (en) * 2012-03-15 2013-09-19 Niebling Gmbh Cleaning and maintaining the inner surface of a pipe
WO2014072020A1 (en) * 2012-11-09 2014-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device capable of self-propulsion along a supporting structure, and use thereof
CN104438252A (en) * 2014-12-05 2015-03-25 中国石油天然气股份有限公司 Blade type tube cleaner

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