EP1147825B1 - Video inspection and jet cleaning device for pipes - Google Patents

Video inspection and jet cleaning device for pipes Download PDF

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Publication number
EP1147825B1
EP1147825B1 EP00430016A EP00430016A EP1147825B1 EP 1147825 B1 EP1147825 B1 EP 1147825B1 EP 00430016 A EP00430016 A EP 00430016A EP 00430016 A EP00430016 A EP 00430016A EP 1147825 B1 EP1147825 B1 EP 1147825B1
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EP
European Patent Office
Prior art keywords
head
cable
camera
scouring
hose
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.)
Expired - Lifetime
Application number
EP00430016A
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German (de)
French (fr)
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EP1147825A1 (en
Inventor
Edmond Briand
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ROV Developpement
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ROV Developpement
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Publication date
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Priority to PT00430016T priority Critical patent/PT1147825E/en
Priority to DE60006214T priority patent/DE60006214T2/en
Priority to AT00430016T priority patent/ATE252951T1/en
Priority to ES00430016T priority patent/ES2208245T3/en
Priority to EP00430016A priority patent/EP1147825B1/en
Publication of EP1147825A1 publication Critical patent/EP1147825A1/en
Application granted granted Critical
Publication of EP1147825B1 publication Critical patent/EP1147825B1/en
Anticipated expiration legal-status Critical
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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 
    • 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
    • B08B9/0495—Nozzles propelled by fluid jets
    • 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

Definitions

  • the present invention relates to a control device video and pipe cleaning.
  • the technical sector of the invention is the field of cleaning of pipes or tubes or systems of pipes or tubes by cleaning devices internally displaced therefrom and using a self-propelled pressurized fluid.
  • the main application of the invention is high-grade cleaning pressure of said pipes with a cleaning control as well without having to reassemble the tool.
  • the problem is to be able to clean and high pressure cleaning of the interior of a multiple pipe tens or even hundreds of meters with a cleaning head capable of control, with good visibility and without having to leave the assembly of the device of the pipe, the walls thereof and this using a cleaning head having dimensions close to those standard to be adapted to known surface equipment and without require a complicated mechanical mechanism or device.
  • a solution to the problem posed is a cleaning head by inside a pipe, supplied by a cable or flexible pressurized fluid ensuring its traction and cleaning, and comprising sprinklers distributed around its periphery and oriented towards the rear of the distal end of the head, as well as a camera whose porthole protection is disposed towards the front of said distal end; according to the invention said cleaning head comprises a first oriented nozzle towards said window and supplied with the same pressurized fluid.
  • Another object of the present invention is also to ability to advance said cleaning head even in the event of a traffic jam closing the pipe, and which will have been detected by said camera without having to reassemble the entire cleaning head: this objective is reached by a second nozzle directed towards the front of said end distal and supplied with the same pressurized fluid. The fluid under pressure thus sent forward allows to deconstruct everything obstacle located in front of the cleaning head.
  • said sprinklers window and liquid spray cleaning mainly of the water, forward, is supplied through a valve which does not open than at a given pressure of the supply fluid, greater than the normal propulsion supply pressure by said nozzles oriented towards the outside, which makes it possible to control, thanks to the sending of this pressure by the cable connecting with the surface, the moments where one wishes to supply said sprinklers.
  • Figure 1 is a longitudinal sectional view of a head cleaning according to the invention.
  • Figure 2 is a longitudinal sectional view of a connector of the power supply cable of the cleaning head according to the invention.
  • the pipe cleaning head 1 is, in a known manner, supplied by a cable 2 with pressurized fluid 8 ensuring its traction and cleaning by means of removable nozzles 9 and fixed in housings 9 1 provided in the rear part 26 of head 1; these nozzles are distributed over the periphery thereof and oriented towards the rear of the distal end of the head, such that forming an angle of 30 ° to 45 ° or even up to 90 ° relative to the axis of the pipe to be cleaned.
  • Said cleaning head also comprises a camera 3, the protective window 4 of which is disposed towards the front of said distal end, the latter being defined relative to the rear part 25 of the cleaning head, to which the connector of the cable 2.
  • the cleaning head 1 comprises a nozzle 6 1 placed on the side and oriented towards said window 4: it is preferably supplied on demand with the same pressurized fluid 8 thanks to a supply duct 8 1 which bypasses the location of the camera 3.
  • This nozzle 6 1 is mounted on a small head 6 which can be removable and the end of which may protrude from the front face of the distal end of the cleaning head so that said nozzle 6 1 oriented slightly towards the rear is directed towards the surface of said window 4.
  • Another nozzle 6 2 directed towards the front of said distal end, and also supplied with the same pressurized fluid 8 can be mounted on the same nozzle head 6.
  • This is preferably supplied through a valve 7 of the type with spring which is mounted in the supply conduit 8 1, preferably at the interface between two parts 23, 26 constituting said cleaning head, and which opens only at a given pressure P of the fluid 8 greater than that of normal supply: said pressure can be for example 100 bars for a normal supply pressure for cleaning and propelling through the nozzles 9 of 80 bars; this pressure can however be higher such as up to 700 bars.
  • Camera 3 is mounted in a shock absorbing sleeve 22 which sleeve is placed in a socket-shaped housing 24 23 produced in a part constituting the middle part of said head 1: its assembly and sealing are ensured by the assembly of two parts 27, 23 constituting the cleaning head 1.
  • various lamps of the type "LED” can be arranged peripherally to said camera in housings made inside part 27 constituting the distal end of the head, said “LEDs” are preferably infrared or halogen type.
  • a transmitter electromagnetic 10 able to allow said tracking from the outside, is mounted in a housing made in one of the rooms constituting said cleaning head such as the rear part 26 ensuring connection with cable 2: this probe or transmitter electromagnetic 10 is protected in a resin 11 filling the housing in which said probe is placed without interfering with the emission electromagnetic waves.
  • Said cleaning head 1 is composed of three main parts, one 27 corresponding to its distal end and carrying the porthole 4 and the nozzle 6 1 oriented towards said porthole, another 26 corresponding to its rear part receiving the connector 14 of the cable 2 and which comprises a connection base 25 as well as all the fluid supply conduits 8 to all of the nozzles 9, 6 and the third 23 which is an intermediate piece between the two previous pieces and carrying the camera 3.
  • the camera 3 is supplied, controlled and transmits its information by a single cable or hose 2 for supplying pressurized fluid 8.
  • the hose is designed so as not to reduce the water flow.
  • said cable or flexible comprises in its frame exterior surrounding the central duct through which the fluid passes under pressure 8, different metal braids including at least one 16 allows the transmission of an electrical signal as well as power supply at 12 volts for example; another metallic braid 18, corresponding to the mass of the power supply and of the entire circuit information transfer, is maintained at 0 volts.
  • Different others braids of textile type 17 are arranged between the different others metallic braids to insulate on the one hand and on the other share the tensile strength that must be maintained at the rear of the head 1 which is pulled forward by the propulsion of its nozzles 9.
  • the connection between said cable or hose 2 and the cleaning head 1 is produced by a connector 14 whose mechanical fixing is not shown here and can be of any known type.
  • the rear part 26 of this cleaning head comprises a base 25 capable of receiving the connector 14 of the cable or flexible 2: this base 25 itself itself comprises on the one hand an orifice 13 in which a male end piece 14 1 of the connector fits 14 and through which said fluid 8 is supplied, and on the other hand at least one electrical contact 12; in fact one can thus have as many contacts as possible, each corresponding to a metal braid necessary for the transmission of the power supply and the signal; these electrical contacts are arranged peripherally around the orifice 13 and at different diameters if there are several.
  • the connector 14 of the cable or hose 2 comprises at least one track 15 of peripheral electrical contact around the male end piece 14 1 and on which said electrical contact rests. 12 which thus maintains the electrical continuity whatever the possibility of reciprocal rotation between the cable or hose 2 and the head 1; different electrical connection pieces 19 ensure continuity between the track 15 and the braid 16.
  • Electrical connections are arranged in the cleaning head 1 itself between the different components from the electrical contacts 12 to to the usable organs, such as the camera and the "LEDs": these connections pass through passages 28 provided for this in the various parts made of solid and machined materials, constituting this head.
  • the cable or flexible 2 is held on said connector 14 by fitting onto a male plug 14 2 comprising asperities and opposite to that ensuring the connection with the cleaning head 1: the cable or flexible 2 is held on this sleeve 14 2 by all crimping device 20.
  • Different insulating parts 21 are interposed between the different metal parts of the connector 14 to preserve good electrical transmission through the various components described above.
  • signal transmission video information collected by the camera 3 is carried out by a hertzian wave transmitter on board the cleaning head 1: a receiving antenna is installed at one end of the conduct, for example in the upstream manhole through which the head 1, or in the downstream gaze; this antenna is connected to the command and control.
  • a receiving antenna is installed at one end of the conduct, for example in the upstream manhole through which the head 1, or in the downstream gaze; this antenna is connected to the command and control.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Studio Devices (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

The head (1) receives high pressure water (8) which is fed to nozzles (9) producing forward movement. A camera (3) takes pictures through a port (4) using light emitting diodes (5) and transmits signals along the water supply pipe sheath. The head position is determined from an electromagnetic emitter (10). If the water pressure is increased a valve (7) opens to supply a jet to clean the camera port (61) and a jet to remove obstructions ahead.

Description

La présente invention a pour objet un dispositif de contrôle vidéo et de curage de canalisations par jet.The present invention relates to a control device video and pipe cleaning.

Le secteur technique de l'invention est le domaine du nettoyage de conduites ou de tubes ou de systèmes de conduites ou de tubes par des dispositifs de nettoyage déplacés intérieurement à ceux-ci et utilisant un fluide sous pression auto propulseur.The technical sector of the invention is the field of cleaning of pipes or tubes or systems of pipes or tubes by cleaning devices internally displaced therefrom and using a self-propelled pressurized fluid.

L'application principale de l'invention est le curage à haute pression desdites canalisations avec un contrôle du nettoyage ainsi effectué sans avoir à remonter l'outil.The main application of the invention is high-grade cleaning pressure of said pipes with a cleaning control as well without having to reassemble the tool.

Différents dispositifs ont été développés pour répondre à cette application tels qu'en particulier celui décrit dans la demande de brevet FR2 609 417 déposée le 8/01/87, et abandonnée depuis, par la Sté VAIRE et intitulée "Tête de curage télécommandée" : ce document enseigne une tête de curage comportant "dans un caisson, un compartiment intérieur pour loger derrière un hublot un tube de prise de vue d'une caméra vidéo d'exploration et un compartiment secondaire communiquant avec une source de fluide sous pression et associé à une chambre de répartition débouchant sur une couronne de gicleurs de propulsion et de curage".Different devices have been developed to meet this application such as in particular that described in the request for FR2 609 417 patent filed on 8/01/87, and since abandoned by VAIRE company and entitled "Remote controlled cleaning head": this document teaches a cleaning head comprising "in a box, an interior compartment to accommodate a tube behind a porthole shooting an exploration video camera and a compartment secondary communicating with a source of pressurized fluid and associated with a distribution chamber opening onto a crown of propulsion and cleaning jets ".

Il est en effet connu de nettoyer des canalisations par une telle tête de curage dite aussi "tête grenade" en forme d'obus et fixée par tout dispositif de connexion à un tuyau d'alimentation de fluide à haute pression, en particulier de l'eau, qui est envoyé à des gicleurs orientés vers l'arrière de ladite tête de curage de façon à assurer à la fois sa propulsion par effet de réaction et en même temps l'arrachement des saletés qui se seraient déposées sur la périphérie du tube en renvoyant celles-ci vers l'arrière de la tête de curage. Quand on veut contrôler si le nettoyage a été fait correctement, il faut alors :

  • soit sortir de la conduite l'ensemble du dispositif de curage pour y envoyer ensuite une caméra,
  • soit, grâce au dispositif décrit dans la demande de brevet citée ci-dessus, reculer simplement l'outil, celui-ci permettant également et théoriquement de pouvoir contrôler ce qui se passe en avant de la tête pendant l'opération de nettoyage proprement dite.
It is indeed known to clean pipes by such a cleaning head also called "grenade head" in the shape of a shell and fixed by any device for connection to a high pressure fluid supply pipe, in particular of the water, which is sent to jets oriented towards the rear of said cleaning head so as to ensure both its propulsion by reaction effect and at the same time the removal of dirt which would have deposited on the periphery of the tube in returning these towards the rear of the cleaning head. When we want to check if the cleaning has been done correctly, we must:
  • either remove the entire cleaning device from the pipe and then send a camera to it,
  • or, thanks to the device described in the patent application cited above, simply back the tool, it also and theoretically being able to control what happens in front of the head during the actual cleaning operation.

Cependant du fait de l'opération de nettoyage, qui soulève de nombreux déchets dans la conduite et qui se déposent sur le hublot, il s'avère que la caméra ainsi installée ne peut pas renvoyer d'images correctes, ce qui en limite l'intérêt. Par ailleurs d'autres dispositifs ont été développés et ont fait l'objet pour certains de dépôts de demande de brevet mais enseignent des dispositifs assez complexes dont il n'est pas nécessaire d'en citer les références dans la présente description, la demande de brevet française citée ci-dessus pouvant être considérée comme étant l'art antérieur le plus proche.However due to the cleaning operation, which raises numerous wastes in the pipe and which deposit on the window, it turns out that the camera thus installed cannot send back images correct, which limits their interest. In addition, other devices have been developed and have been the subject of some patent application but teach quite complex devices whose references need not be cited in this description, the French patent application cited above may be considered to be the closest prior art.

Le problème posé est en effet de pouvoir assurer le nettoyage et curage à haute pression de l'intérieur d'une conduite sur plusieurs dizaines ou même centaines de mètres avec une tête de curage apte à contrôler, avec une bonne visibilité et sans avoir à sortir l'ensemble du dispositif de la conduite, les parois de celle-ci et cela en utilisant une tête de curage ayant des dimensions proches de celles standard pour être adaptée à des équipements de surface connus et sans nécessiter de mécanisme ou de dispositif mécanique compliqué.The problem is to be able to clean and high pressure cleaning of the interior of a multiple pipe tens or even hundreds of meters with a cleaning head capable of control, with good visibility and without having to leave the assembly of the device of the pipe, the walls thereof and this using a cleaning head having dimensions close to those standard to be adapted to known surface equipment and without require a complicated mechanical mechanism or device.

Une solution au problème posé est une tête de curage par l'intérieur d'une conduite, alimentée par un câble ou flexible en fluide sous pression assurant sa traction et le curage, et comportant des gicleurs répartis sur sa périphérie et orientés vers l'arrière de l'extrémité distale de la tête, ainsi qu'une caméra dont le hublot de protection est disposé vers l'avant de ladite extrémité distale ; selon l'invention ladite tête de curage comporte un premier gicleur orienté vers ledit hublot et alimenté par le même fluide sous pression. A solution to the problem posed is a cleaning head by inside a pipe, supplied by a cable or flexible pressurized fluid ensuring its traction and cleaning, and comprising sprinklers distributed around its periphery and oriented towards the rear of the distal end of the head, as well as a camera whose porthole protection is disposed towards the front of said distal end; according to the invention said cleaning head comprises a first oriented nozzle towards said window and supplied with the same pressurized fluid.

Un autre objectif de la présente invention est également de pouvoir faire avancer ladite tête de curage même en cas de bouchon obturant la conduite, et qui aura été détecté par ladite caméra sans avoir à remonter l'ensemble de la tête de curage : cet objectif est atteint par un second gicleur dirigé vers l'avant de ladite extrémité distale et alimenté par le même fluide sous pression. Le fluide sous pression ainsi envoyé vers l'avant permet de déstructurer tout obstacle situé devant la tête de curage.Another object of the present invention is also to ability to advance said cleaning head even in the event of a traffic jam closing the pipe, and which will have been detected by said camera without having to reassemble the entire cleaning head: this objective is reached by a second nozzle directed towards the front of said end distal and supplied with the same pressurized fluid. The fluid under pressure thus sent forward allows to deconstruct everything obstacle located in front of the cleaning head.

Dans un mode préférentiel de réalisation, lesdits gicleurs de nettoyage de hublot et de projection de liquide, essentiellement de l'eau, vers l'avant, sont alimentés à travers un clapet qui ne s'ouvre qu'à une pression donnée du fluide d'alimentation, supérieure à la pression normale d'alimentation de propulsion par desdits gicleurs orientés vers l'extérieur, ce qui permet de contrôler, grâce à l'envoi de cette pression par le câble de liaison avec la surface, les moments où l'on souhaite alimenter lesdits gicleurs.In a preferred embodiment, said sprinklers window and liquid spray cleaning, mainly of the water, forward, is supplied through a valve which does not open than at a given pressure of the supply fluid, greater than the normal propulsion supply pressure by said nozzles oriented towards the outside, which makes it possible to control, thanks to the sending of this pressure by the cable connecting with the surface, the moments where one wishes to supply said sprinklers.

Le résultat est une nouvelle tête de curage de conduites répondant au problème posé et permettant d'atteindre différents objectifs particuliers tels que ceux évoqués ci-dessous et d'autres qui seront explicités dans la description ci-après et qui montrent différents avantages de la présente invention qui en prouvent la nouveauté et l'intérêt.The result is a new pipe cleaning head responding to the problem posed and making it possible to reach different particular objectives such as those discussed below and others that will be explained in the description below and which show various advantages of the present invention which prove the novelty and interest.

La description et les figures ci-après représentent en effet, un exemple de réalisation de l'invention mais n'ont aucun caractère limitatif : d'autre réalisations sont possibles dans le cadre de la portée et de l'étendue de cette invention, en particulier en changeant les différents modes d'assemblage des diverses parties de ladite tête de curage.The description and the figures below represent, in fact, a example of embodiment of the invention but have no character limiting: other embodiments are possible within the framework of the scope and extent of this invention, in particular by changing the different ways of assembling the various parts of said head of cleaning.

La figure 1 est une vue en coupe longitudinale d'une tête de curage selon l'invention.Figure 1 is a longitudinal sectional view of a head cleaning according to the invention.

La figure 2 est une vue en coupe longitudinale d'un connecteur du câble d'alimentation de la tête de curage selon l'invention. Figure 2 is a longitudinal sectional view of a connector of the power supply cable of the cleaning head according to the invention.

La tête de curage 1 de conduite est, d'une manière connue, alimentée par un câble 2 en fluide sous pression 8 assurant sa traction et le curage grâce à des gicleurs 9 démontables et fixés dans des logements 91 prévus dans la partie arrière 26 de la tête 1 ; ces gicleurs sont répartis sur la périphérie de celle-ci et orientés vers l'arrière de l'extrémité distale de la tête, tels que formant un angle de 30° à 45° ou même jusqu'à 90° par rapport à l'axe de la conduite à nettoyer. Ladite tête de curage comprend également une caméra 3 dont le hublot 4 de protection est disposé vers l'avant de ladite extrémité distale, celle ci étant définie par rapport à la partie arrière 25 de la tête de curage, sur laquelle est fixé le connecteur du câble 2.The pipe cleaning head 1 is, in a known manner, supplied by a cable 2 with pressurized fluid 8 ensuring its traction and cleaning by means of removable nozzles 9 and fixed in housings 9 1 provided in the rear part 26 of head 1; these nozzles are distributed over the periphery thereof and oriented towards the rear of the distal end of the head, such that forming an angle of 30 ° to 45 ° or even up to 90 ° relative to the axis of the pipe to be cleaned. Said cleaning head also comprises a camera 3, the protective window 4 of which is disposed towards the front of said distal end, the latter being defined relative to the rear part 25 of the cleaning head, to which the connector of the cable 2.

Suivant l'invention, la tête de curage 1 comporte un gicleur 61 placé sur le côté et orienté vers ledit hublot 4 : il est alimenté de préférence à la demande par le même fluide sous pression 8 grâce à un conduit d'alimentation 81 qui contourne l'emplacement de la caméra 3. Ce gicleur 61 est monté sur une petite tête 6 qui peut être démontable et dont l'extrémité peut dépasser de la face avant de l'extrémité distale de la tête de curage afin que ledit gicleur 61 orienté légèrement vers l'arrière soit dirigé vers la surface dudit hublot 4.According to the invention, the cleaning head 1 comprises a nozzle 6 1 placed on the side and oriented towards said window 4: it is preferably supplied on demand with the same pressurized fluid 8 thanks to a supply duct 8 1 which bypasses the location of the camera 3. This nozzle 6 1 is mounted on a small head 6 which can be removable and the end of which may protrude from the front face of the distal end of the cleaning head so that said nozzle 6 1 oriented slightly towards the rear is directed towards the surface of said window 4.

Un autre gicleur 62 dirigé vers l'avant de ladite extrémité distale, et alimenté également par le même fluide sous pression 8 peut être monté sur la même tête de gicleur 6. Celle-ci est de préférence alimentée à travers un clapet 7 de type à ressort qui est monté dans le conduit d'alimentation 81, de préférence à l'interface entre deux pièces 23, 26 constituant ladite tête de curage, et qui ne s'ouvre qu'à une pression donnée P du fluide 8 supérieure à celle de l'alimentation normale : ladite pression peut être par exemple de 100 bars pour une pression d'alimentation normale de nettoyage et de propulsion à travers les gicleurs 9 de 80 bars ; cette pression peut cependant être plus élevée tel que jusqu'à 700 bars. Another nozzle 6 2 directed towards the front of said distal end, and also supplied with the same pressurized fluid 8 can be mounted on the same nozzle head 6. This is preferably supplied through a valve 7 of the type with spring which is mounted in the supply conduit 8 1, preferably at the interface between two parts 23, 26 constituting said cleaning head, and which opens only at a given pressure P of the fluid 8 greater than that of normal supply: said pressure can be for example 100 bars for a normal supply pressure for cleaning and propelling through the nozzles 9 of 80 bars; this pressure can however be higher such as up to 700 bars.

La caméra 3 est montée dans un fourreau amortisseur de chocs 22 lequel fourreau est placé dans un logement 24 en forme de douille 23 réalisé dans une pièce constituant la partie médiane de ladite tête 1 : son montage et étanchéité sont assurés par l'assemblage de deux pièces 27, 23 constituant la tête de curage 1.Camera 3 is mounted in a shock absorbing sleeve 22 which sleeve is placed in a socket-shaped housing 24 23 produced in a part constituting the middle part of said head 1: its assembly and sealing are ensured by the assembly of two parts 27, 23 constituting the cleaning head 1.

Pour assurer un éclairage à ladite caméra 3, diverses lampes du type "LED" peuvent être disposées périphériquement à ladite caméra dans des logements réalisés à l'intérieur de la pièce 27 constituant l'extrémité distale de la tête, lesdites "LED" sont de préférence de type à infrarouge ou halogène.To provide lighting to said camera 3, various lamps of the type "LED" can be arranged peripherally to said camera in housings made inside part 27 constituting the distal end of the head, said "LEDs" are preferably infrared or halogen type.

Afin de pouvoir repérer ladite tête de curage à l'intérieur de la canalisation depuis l'extérieur de celle-ci, un émetteur électromagnétique 10, apte à permettre ledit repérage depuis l'extérieur, est monté dans un logement réalisé dans l'une des pièces constituant ladite tête de curage tel que la pièce arrière 26 assurant la connexion avec le câble 2 : cette sonde ou émetteur électromagnétique 10 est protégé dans une résine 11 remplissant le logement dans lequel est placée ladite sonde sans gêner l'émission des ondes électromagnétiques.In order to be able to locate said cleaning head inside the pipe from outside of it, a transmitter electromagnetic 10, able to allow said tracking from the outside, is mounted in a housing made in one of the rooms constituting said cleaning head such as the rear part 26 ensuring connection with cable 2: this probe or transmitter electromagnetic 10 is protected in a resin 11 filling the housing in which said probe is placed without interfering with the emission electromagnetic waves.

Ladite tête de curage 1 est composée de trois pièces principales, l'une 27 correspondant à son extrémité distale et portant le hublot 4 et le gicleur 61 orienté vers ledit hublot, une autre 26 correspondant à sa partie arrière recevant le connecteur 14 du câble 2 et qui comprend un culot 25 de connexion ainsi que tous les conduits d'alimentation du fluide 8 vers l'ensemble des gicleurs 9, 6 et la troisième 23 qui est une pièce intermédiaire entre les deux pièces précédentes et portant la caméra 3.Said cleaning head 1 is composed of three main parts, one 27 corresponding to its distal end and carrying the porthole 4 and the nozzle 6 1 oriented towards said porthole, another 26 corresponding to its rear part receiving the connector 14 of the cable 2 and which comprises a connection base 25 as well as all the fluid supply conduits 8 to all of the nozzles 9, 6 and the third 23 which is an intermediate piece between the two previous pieces and carrying the camera 3.

Afin de ne pas avoir plusieurs câbles risquant de s'emmêler et de compliquer la mise en oeuvre de la tête de curage, la caméra 3 est alimentée, commandée et transmet ses informations par un même câble ou flexible 2 d'alimentation en fluide sous pression 8. En outre, le flexible est étudié de manière à ne pas réduire le débit d'eau. Pour cela la transmission des signaux se fait par la périphérie du câble. En particulier, ledit câble ou flexible comporte dans son armature extérieure entourant le conduit central dans lequel passe le fluide sous pression 8, différentes tresses métalliques dont au moins une 16 permet la transmission d'un signal électrique ainsi qu'une alimentation sous 12 volts par exemple ; une autre tresse métallique 18, correspondant à la masse de l'alimentation et de tout le circuit de transfert d'information, est maintenue à 0 volt. Différentes autres tresses de type textile 17 sont disposées entre les différentes autres tresses métalliques pour assurer d'une part leur isolation et d'autre part la résistance à la traction que l'on doit maintenir à l'arrière de la tête 1 qui est tirée vers l'avant par la propulsion de ses gicleurs 9.In order not to have several cables that could get tangled and to complicate the implementation of the cleaning head, the camera 3 is supplied, controlled and transmits its information by a single cable or hose 2 for supplying pressurized fluid 8. In addition, the hose is designed so as not to reduce the water flow. For that the transmission of the signals is done by the periphery of the cable. In particular, said cable or flexible comprises in its frame exterior surrounding the central duct through which the fluid passes under pressure 8, different metal braids including at least one 16 allows the transmission of an electrical signal as well as power supply at 12 volts for example; another metallic braid 18, corresponding to the mass of the power supply and of the entire circuit information transfer, is maintained at 0 volts. Different others braids of textile type 17 are arranged between the different others metallic braids to insulate on the one hand and on the other share the tensile strength that must be maintained at the rear of the head 1 which is pulled forward by the propulsion of its nozzles 9.

La liaison entre ledit câble ou flexible 2 et la tête de curage 1 est réalisée par un connecteur 14 dont la fixation mécanique n'est pas représentée ici et peut être de tout type connu. La pièce arrière 26 de cette tête de curage comprend un culot 25 apte à recevoir le connecteur 14 du câble ou flexible 2 : ce culot 25 comprend lui même d'une part un orifice 13 dans lequel s'emboíte un embout mâle 141 du connecteur 14 et à travers lequel est alimenté ledit fluide 8, et d'autre part au moins un contact électrique 12 ; en fait on peut disposer ainsi autant de contacts que possible, correspondant chacun à une tresse métallique nécessaire pour la transmission de l'alimentation et du signal ; ces contacts électriques sont disposés périphériquement autour de l'orifice 13 et à diamètres différents s'il y en a plusieurs.The connection between said cable or hose 2 and the cleaning head 1 is produced by a connector 14 whose mechanical fixing is not shown here and can be of any known type. The rear part 26 of this cleaning head comprises a base 25 capable of receiving the connector 14 of the cable or flexible 2: this base 25 itself itself comprises on the one hand an orifice 13 in which a male end piece 14 1 of the connector fits 14 and through which said fluid 8 is supplied, and on the other hand at least one electrical contact 12; in fact one can thus have as many contacts as possible, each corresponding to a metal braid necessary for the transmission of the power supply and the signal; these electrical contacts are arranged peripherally around the orifice 13 and at different diameters if there are several.

Pour assurer la continuité électrique entre lesdits contacts électriques 12 et lesdites tresses 16, le connecteur 14 du câble ou flexible 2 comprend au moins une piste 15 de contact électrique périphérique autour de l'embout mâle 141 et sur laquelle s'appuie ledit contact électrique 12 qui maintient ainsi la continuité électrique quelle que soit la possibilité de rotation réciproque entre le câble ou flexible 2 et la tête 1 ; différentes pièces de liaison électrique 19 assurent la continuité entre la piste 15 et la tresse 16. Des liaisons électriques non représentées sur la figure 1, sont disposées dans la tête de curage 1 elle-même entre les différents composants depuis les contacts électriques 12 jusqu'aux organes utilisables, comme la caméra et les "'LED" : ces liaisons passent dans des passages prévus 28 pour cela dans les différentes pièces en matériaux pleins et usinés, constituant cette tête.To ensure electrical continuity between said electrical contacts 12 and said braids 16, the connector 14 of the cable or hose 2 comprises at least one track 15 of peripheral electrical contact around the male end piece 14 1 and on which said electrical contact rests. 12 which thus maintains the electrical continuity whatever the possibility of reciprocal rotation between the cable or hose 2 and the head 1; different electrical connection pieces 19 ensure continuity between the track 15 and the braid 16. Electrical connections, not shown in FIG. 1, are arranged in the cleaning head 1 itself between the different components from the electrical contacts 12 to to the usable organs, such as the camera and the "LEDs": these connections pass through passages 28 provided for this in the various parts made of solid and machined materials, constituting this head.

Le câble ou flexible 2 est maintenu sur ledit connecteur 14 par emboítement sur une fiche mâle 142 comprenant des aspérités et opposée à celle assurant la connexion avec la tête de curage 1 : le câble ou flexible 2 est maintenu sur ce manchon 142 par tout dispositif de sertissage 20. Différentes pièces isolantes 21 sont intercalées entre les différentes parties métalliques du connecteur 14 pour préserver la bonne transmission électrique à travers les différents composants décrits ci dessus.The cable or flexible 2 is held on said connector 14 by fitting onto a male plug 14 2 comprising asperities and opposite to that ensuring the connection with the cleaning head 1: the cable or flexible 2 is held on this sleeve 14 2 by all crimping device 20. Different insulating parts 21 are interposed between the different metal parts of the connector 14 to preserve good electrical transmission through the various components described above.

Dans un autre mode de réalisation, la transmission du signal des informations vidéo recueillies par la caméra 3 est réalisée par un émetteur d'ondes hertziènes embarqué sur la tête de curage 1 : une antenne de réception est installée à l'une des extrémités de la conduite, par exemple dans le regard amont par lequel est introduit la tête 1, ou dans le regard aval ; cette antenne est reliée au coffret de commande et de contrôle. Un tel dispositif est possible quand le conduit n'est pas rempli de liquide, ce qui est souvent le cas, les projections d'eau par les gicleurs 9 ne gênant pas la transmission : dans une telle configuration de transmission par voies hertziennes, l'énergie électrique nécessaire est fournie par une batterie embarquée sur la tête 1, l'ensemble des composants, émetteur et récepteur, sont marinisés et le connecteur 14 et le flexible ou câble 2 sont simplifiés car ils peuvent ne pas comporter les liaisons électriques décrites précédemment pour assurer ladite transmission.In another embodiment, signal transmission video information collected by the camera 3 is carried out by a hertzian wave transmitter on board the cleaning head 1: a receiving antenna is installed at one end of the conduct, for example in the upstream manhole through which the head 1, or in the downstream gaze; this antenna is connected to the command and control. Such a device is possible when the conduit is not filled with liquid, which is often the case, splashes of water by the nozzles 9 which do not interfere with the transmission: in such a configuration of transmission by hertzian channels, the necessary electrical energy is supplied by an on-board battery on head 1, all of the components, transmitter and receiver, are marinized and connector 14 and hose or cable 2 are simplified as they may not include the electrical connections described previously to ensure said transmission.

Claims (9)

  1. Scouring head (1) for use inside a pipe, supplied with a pressurized fluid (8) through a cable or hose (2) to force the scouring head to move forwards or backwards and for scouring, and comprising jets (9) distributed around its periphery facing backwards towards the distal end of the head, and a camera (3) of which the protective window (4) faces towards the front of the said distal end, characterized in that the said scouring head comprises a first jet (61) facing towards the said window and a second jet (62) facing towards the front of the said distal end, the said first and second jets being supplied by the same pressurized fluid (8).
  2. Scouring head according to claim 1, characterized in that the said first and/or second jet (61 and/or 62) is supplied through a valve (7) that only opens at a given pressure (P) of the fluid (8) greater than the normal propulsion supply pressure through the said jets facing backwards (9).
  3. Scouring head according to either claim 1 or 2, characterized in that the camera (3) is installed in a shock absorbing sleeve (22), located in a housing (24) in the form of a bushing (23) made from a part forming the said head (1).
  4. Scouring head according to any one of claims 1 to 3, characterized in that it comprises an electromagnetic transmitter (10) that can be used to identify the position of the scouring head from outside the pipe.
  5. Scouring head according to any one of claims 1 to 4, characterized in that the camera (3) is powered, controlled and transmits its information through the same cable or hose (2) that supplies the pressurized fluid (8).
  6. Scouring head according to claim 5, characterized in that it comprises a socket (25) in which the connector (14) of the cable or hose (2) can be fitted and that comprises firstly an orifice (13) in which a male end piece (141) of the connector (14) is inserted and through which the said fluid (8) passes, and secondly at least one electrical contact (12) around the periphery of the orifice (13).
  7. Scouring head according to claim 6, characterized in that the connector (14) of the cable or hose (2) comprises at least one peripheral electrical contact track (15) around the periphery of the male end piece (141), and with which the said electrical contact (12) comes into contact thus maintaining electrical continuity regardless of relative rotation between the cable or hose (2) and the head (1).
  8. Scouring head (1) according to any one of claims 1 to 5, characterized in that it comprises a radio wave transmitter capable of transmitting video information from the camera (3).
  9. Scouring head according to any one of claims 1 to 8, characterized in that it is composed of three main parts, one part forming its distal end and supporting the window (4) and the jet (61) facing towards the said window, another (26) forming the back part in which the connector (14) of the cable or hose (2) fits and that comprises a connection socket (25), and all supply pipes through which the fluid (8) passes towards all jets (9, 6), and the third part (23) that is intermediate between the first two parts and on which the camera (3) is installed.
EP00430016A 2000-04-07 2000-04-07 Video inspection and jet cleaning device for pipes Expired - Lifetime EP1147825B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PT00430016T PT1147825E (en) 2000-04-07 2000-04-07 DEVICE FOR INSPECTION BY VIDEO AND CLEANING AND JET OF TUBES
DE60006214T DE60006214T2 (en) 2000-04-07 2000-04-07 Device for video examination and jet cleaning of pipelines
AT00430016T ATE252951T1 (en) 2000-04-07 2000-04-07 DEVICE FOR VIDEO EXAMINATION AND JET CLEANING OF PIPES
ES00430016T ES2208245T3 (en) 2000-04-07 2000-04-07 DEVICE FOR VIDEO CONTROL AND CLEANING OF DRIVING DRIVES.
EP00430016A EP1147825B1 (en) 2000-04-07 2000-04-07 Video inspection and jet cleaning device for pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00430016A EP1147825B1 (en) 2000-04-07 2000-04-07 Video inspection and jet cleaning device for pipes

Publications (2)

Publication Number Publication Date
EP1147825A1 EP1147825A1 (en) 2001-10-24
EP1147825B1 true EP1147825B1 (en) 2003-10-29

Family

ID=8174072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00430016A Expired - Lifetime EP1147825B1 (en) 2000-04-07 2000-04-07 Video inspection and jet cleaning device for pipes

Country Status (5)

Country Link
EP (1) EP1147825B1 (en)
AT (1) ATE252951T1 (en)
DE (1) DE60006214T2 (en)
ES (1) ES2208245T3 (en)
PT (1) PT1147825E (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015103567U1 (en) 2015-07-06 2016-10-10 Ipek International Gmbh cleaning system
DE102015110912B4 (en) * 2015-07-06 2020-10-08 Ipek International Gmbh Cleaning system
DE102017118557B3 (en) 2017-08-15 2018-06-21 Ibak Helmut Hunger Gmbh & Co. Kg jet
DE102018110056B4 (en) 2018-04-26 2022-02-03 Envirobot GmbH & Co. KG Sewer cleaning and inspection device and method
CN110238138A (en) * 2019-07-11 2019-09-17 上海澄泓机器人有限公司 A kind of cleaning of small diameter tube sewer and detection device
CH717117A2 (en) * 2020-02-07 2021-08-16 Enz Technik Ag Pipe cleaning and / or inspection nozzle with extension sleeve.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3614046A1 (en) * 1985-05-09 1986-11-20 EAB Electronic-Apparate-Bau GmbH, 8984 Riezlern Device for cleaning laid pipes
GB2217423B (en) * 1988-04-22 1992-11-11 Pipeline Pigging Services Limi Inflatable pipe-cleaning pig
DE4426939B4 (en) * 1994-07-29 2007-02-22 Rainer Dipl.-Ing. Mengedoht Inspection head for side channels of an underground sewage system
DE29509289U1 (en) * 1995-06-06 1996-10-02 Kipp, Jens Werner, 33659 Bielefeld Robots for cleaning sewer pipes
FR2784908B1 (en) * 1998-10-26 2001-01-19 Edmond Briand DEVICE FOR VIDEO CONTROL AND CURING OF JET PIPES

Also Published As

Publication number Publication date
DE60006214T2 (en) 2004-08-19
EP1147825A1 (en) 2001-10-24
PT1147825E (en) 2004-03-31
ATE252951T1 (en) 2003-11-15
DE60006214D1 (en) 2003-12-04
ES2208245T3 (en) 2004-06-16

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