FR2632547A1 - Device for repairing pipes - Google Patents

Device for repairing pipes Download PDF

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Publication number
FR2632547A1
FR2632547A1 FR8909146A FR8909146A FR2632547A1 FR 2632547 A1 FR2632547 A1 FR 2632547A1 FR 8909146 A FR8909146 A FR 8909146A FR 8909146 A FR8909146 A FR 8909146A FR 2632547 A1 FR2632547 A1 FR 2632547A1
Authority
FR
France
Prior art keywords
pipes
discs
scraper
scraper discs
visitable
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
FR8909146A
Other languages
French (fr)
Other versions
FR2632547B1 (en
Inventor
Jacques Parissot
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.)
DEVIN LEMARCHAND ENTR
Original Assignee
DEVIN LEMARCHAND ENTR
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 FR8704841A external-priority patent/FR2613258B1/en
Application filed by DEVIN LEMARCHAND ENTR filed Critical DEVIN LEMARCHAND ENTR
Priority to FR8909146A priority Critical patent/FR2632547B1/en
Publication of FR2632547A1 publication Critical patent/FR2632547A1/en
Application granted granted Critical
Publication of FR2632547B1 publication Critical patent/FR2632547B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • B08B9/0436—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 provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
    • 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
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/1645—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention relates to an apparatus for repairing semi-inspectable or non-inspectable underground pipes. According to the invention this apparatus consists of a scraping part comprising at each of its ends an ogive-shaped head 1 with a securing ring 2 and a cable 3 with which to pull or recall the apparatus. The heads 1 are joined together by a steel cable 4 and their rear face is fitted with a row of resilient scraper discs 6. These scraper discs 6 are separated by washers 7, also of resilient material, and the assembled row of discs and washers is held between two metal end plates 8.

Description

La présente,invention concerne les appareils ou dispositifs destinés à la remise en etat de canalisations enterrees semi-visitables ou non visitables. The present invention relates to apparatus or devices intended for the repair of semi-visitable or non-visitable buried pipes.

Les conduites couramment utilisées pour la collecte et le transfert des eaux usées, des eaux pluviales ou des eaux potables ou industrielles sous faible pression sont le plus souvent réalisées en béton, béton armé, amiante ciment, gres ou matiere plastique ou en acier, elles peuvent a plus ou moins long terme, etre détériorées, fissurées ou presenter une certaine porosite. Les sollicitations auxquelles elles sont soumises peuvent entrainer également leur désalignement et par suite une rupture d'étanchéité au niveau des joints d'assemblage des éléments les constituant. The pipes commonly used for the collection and transfer of wastewater, rainwater or potable or industrial water under low pressure are most often made of concrete, reinforced concrete, asbestos cement, gres or plastic or steel, they can more or less long term, be deteriorated, cracked or present a certain porosity. The stresses to which they are subjected can also cause their misalignment and consequently a seal rupture at the level of the joints of assembly of the elements constituting them.

Il est donc nécessaire de procéder périodiquement a une vérification du bon état de la structure des conduites, un nettoyage par curage hydrodynamique et éventuellement par disques racleurs en caoutchouc, ainsi qu'une évaluation et localisation des points de fuites. La réfection des conduites accessibles s'effectue par injection d'un mortier de ciment ou de résine de régénération, de collage et d'étanchement.Dans le cas de conduites non visitables, les techniques actuellement utilisées consistent - dans la pose de manchettes adhésives par expansion de la membrane externe d'un manchon gonflable sur lequel est pouilllée la manchette, - dans la mise en place in situ d'un mortier de revetement intérieur a base de ciment, - par compression, centrifugation ou projection, - par compression a l'aide d'un outil enduiseur de forme conique poussant devant lui le mortier, - dans la mise en place in situ d'un revetement plastique par brossage, centrifugation, - dans la mise en place d'un gainage intérieur, - dans une réfection par tubage.It is therefore necessary to periodically check the good condition of the structure of the pipes, clean by hydrodynamic cleaning and possibly with rubber scraper discs, as well as an assessment and location of the leak points. The repair of accessible pipes is carried out by injecting a cement mortar or resin for regeneration, bonding and sealing. In the case of pipes which cannot be visited, the techniques currently used consist of - laying adhesive cuffs by expansion of the outer membrane of an inflatable sleeve on which the cuff is sprayed, - in the in situ placement of an interior coating mortar based on cement, - by compression, centrifugation or projection, - by compression using a conical coating tool pushing the mortar in front of it, - in the installation in situ of a plastic coating by brushing, centrifugation, - in the installation of an internal sheathing, - in a repair by tubing.

La réfection des conduites doit pouvoir s'effectuer indifféremment dans la nappe phréatique ou hors de celle-ci, sans interrompre l'ecoulement des effluents. Le passage d'une caméra destinée à verifier, a localiser et a evaluer les fuites ne permet pas de visualiser, au sein de la nappe ou en dehors, toutes les cassures, fissures ou porosités des conduites. L'eau de la nappe phréatique ou l'effluent transité par celle-ci a toujours un écoulement préférentiel. Si ce dernier a été colmaté, et si la canalisation n'a'pas été traitée sur l'intégralité de sa longueur, le liquide en trouvera un autre. The repair of the pipes must be able to be carried out either inside or outside the water table, without interrupting the flow of effluents. The passage of a camera intended to check, locate and evaluate the leaks does not allow to visualize, inside the water table or outside, all the breaks, cracks or porosities of the pipes. The water from the groundwater or the effluent transited by it always has a preferential flow. If the latter has been clogged, and if the pipeline has not been treated over its entire length, the liquid will find another.

Le procédé de réfection doit donc avoir pour but d'éviter, d'une part, que les eaux de la nappe ne pénètrent à l'intérieur des conduites et ne viennent perturber le système de traitement de la station d'épuration et augmenter d'une façon considérable le prix de revient du mètre cube d'effluent traité et, d'autre part, que le liquide constituant l'effluent ne s'échappe des conduites et vienne polluer le terrain environnant et la nappe phréatique se retrouvant sous celui-ci : la réduction importante d'ecoulement des effluents peut donner naissance à des bouchons constitués par des matières solides et par suite un colmatage plus ou moins rapide des conduites. The repair process must therefore aim to prevent, on the one hand, that the water from the aquifer does not penetrate inside the pipes and does not disturb the treatment system of the treatment plant and increase in a considerable way the cost price of the cubic meter of treated effluent and, on the other hand, that the liquid constituting the effluent does not escape from the pipes and comes to pollute the surrounding soil and the water table being found under it : the significant reduction in effluent flow can give rise to plugs made up of solid matter and consequently more or less rapid clogging of the pipes.

Pour cela, on réalise un traitement de colmatage intégral en continu des fissures transversales et longitudinales existant dans les conduites enterrées droites, courbes ou décalées, semi visitables ou non visitables et ainsi que de la porosité de ces conduites. L'appareil de colmatage permet ainsi de restaurer l'étanchéité des canalisations par l'intérieur ; il peut être constitué d'un élément de colmatage de la conduite par injection, sous pressions adaptables, d'un complexe organo-hydraulique. For this, a full sealing treatment is carried out continuously of the transverse and longitudinal cracks existing in the buried straight, curved or offset pipes, semi-visitable or non-visitable and as well as the porosity of these pipes. The sealing device thus makes it possible to restore the watertightness of the pipes from the inside; it may consist of a plugging element of the injection pipe, under adaptable pressures, of an organo-hydraulic complex.

L'appareil, objet de l'invention, est destiné à succeder à un tel élément de colmatage. Cet appareil consiste en un élément de raclage ayant pour but de débarrasser la paroi interne des canalisations traitées de toute trace de produit d'injection. Cet élément est constitué, à chaque extrémité avant et arriere, d'une tête de forme ogivale munie d'un anneau d'amarrage à un câble de traction. Les deux extrémités sont reliées entre elles par l'intermediaire d'un câble d'acier recouvert d'une gaine en matière plastique et loge à l'intérieur d'un manchon en matériau élastique conférant à l'ensemble une souplesse d'articulation lui permettant d'évoluer dans des canalisations désalignées ou possédant des coudes de faible rayon de courbure.A la partie ogivale de chaque tête succède un empilage de joints racleurs et de disques en matériau souple, enserrés entre deux plaques metalliques circulaires
Le dessin annexé illustre, a titre d'exemple non limitatif, un mode de réalisation, vu en elevation-cou-pe longitudinale; d'un appareil de raclage conforme a la présente invention.The device, object of the invention, is intended to succeed to such a clogging element. This device consists of a scraping element intended to rid the internal wall of the treated pipes of any trace of injection product. This element consists, at each front and rear end, of an ogival-shaped head provided with a ring for anchoring to a traction cable. The two ends are interconnected by means of a steel cable covered with a plastic sheath and housed inside a sleeve made of elastic material giving the assembly flexibility of articulation. allowing to evolve in misaligned pipes or with elbows of small radius of curvature. The ogival part of each head succeeds a stacking of scraper seals and discs in flexible material, sandwiched between two circular metal plates
The attached drawing illustrates, by way of nonlimiting example, an embodiment, seen in elevation-neck-pe longitudinal; of a scraper apparatus according to the present invention.

L'élément de raclage selon l'invention est constitué à chacune de ses extrémités d'une tête 1 de forme ogivale munie d'un anneau d'ancrage 2 et d'un câble de traction ou de rappel 3. Ces deux tettes sont reliées entre elles par un cable d'acier 4 recouvert d'une gaine de plastique 5. Sur l'arriere de chaque tête est monté un empilage de disques racleurs 6 en caoutchouc moulé par exemple, lesquels disques racleurs sont séparés par des rondelles en caoutchouc mousse 7 ; l'ensemble de l'empilage est contenu entre deux flasques métalliques 8. Les deux tetes ainsi équipées sont maintenues a écartement a l'aide d'un manchon élastique 9 conférant a l'ensemble de l'element la souplesse d'articulation nécessaire. The scraping element according to the invention consists at each of its ends of a head 1 of ogival shape provided with an anchoring ring 2 and a traction or return cable 3. These two tettes are connected between them by a steel cable 4 covered with a plastic sheath 5. On the rear of each head is mounted a stack of scraper discs 6 of molded rubber for example, which scraper discs are separated by foam rubber washers 7; the entire stack is contained between two metal flanges 8. The two heads thus equipped are kept apart by means of an elastic sleeve 9 giving the entire element the necessary flexibility of articulation.

L'invention ne se limite pas au mode de réalisation spécialement décrit : elle embrasse toutes les variantes possibles a condition que celles-ci ne soient pas en opposition avec l'objet de chacune des revendications annexées a la présente description. The invention is not limited to the embodiment specially described: it embraces all possible variants provided that these are not in opposition to the subject of each of the claims appended to this description.

L'appareil, objet de l'invention, peut etre utilise dans tous les cas ou il doit etre procédé a un traitement en continu des altérations visibles ou non de conduites enterrées, semi-visitables ou non visitables, malgré d'importants décalages verticaux ou transversaux des conduites, meme en présence de la nappe phréatique sans pompage, ni dérivation des effluents, la remise en service des conduites se faisant immédiatement après le traitement. The device, object of the invention, can be used in all cases where there must be a continuous treatment of visible or non-visible alterations of buried, semi-visitable or non-visitable pipes, despite significant vertical offsets or transverse pipes, even in the presence of the water table without pumping or bypassing effluents, the return to service of the pipes being done immediately after treatment.

Les signes de référence insérés après les car acte- ristiques techniques mentionnees dans les revendications ont pour seul but de faciliter la compréhension de ces dernières et n'en limitent aucunement la portée.  The reference signs inserted after the technical features mentioned in the claims are intended only to facilitate understanding of the latter and in no way limit their scope.

Claims (6)

- REVENDICATIONS- CLAIMS 1.- Dispositif destiné a la remise en état de canalisations enterrées semi-visitables ou non visitables, caractérisé en ce qu'il consiste en un élément de raclage constitué, à chacune de ses extrémités, d'une tête de forme ogivale (1) munie d'un anneau d'amarrage (2) et d'un cable de traction ou de rappel (3), lesdites têtes (1) étant reliées entre elles par un câble d'acier (4) et leur face arrière étant munie d'un empilage de disques racleurs (6)..  1.- Device intended for the repair of buried semi-visitable or non-visitable pipes, characterized in that it consists of a scraping element consisting, at each of its ends, of an ogival-shaped head (1) provided with a mooring ring (2) and a traction or return cable (3), said heads (1) being connected to each other by a steel cable (4) and their rear face being provided with 'a stack of scraper discs (6). 2.- Dispositif selon la revendication 1, caractérisé en ce que les disques racleurs (6) sont réalisés en matériau élastique tel que du caoutchouc moule. 2.- Device according to claim 1, characterized in that the scraper discs (6) are made of elastic material such as mold rubber. 3.- Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce qu'il comporte des disques racleurs (6) séparés par des rondelles (7) en matériau élastique. 3.- Device according to any one of claims 1 or 2, characterized in that it comprises scraper discs (6) separated by washers (7) made of elastic material. 4.- Dispositif selon l'une quelconque des revendications 1 a 3, caractérisé en ce qu'il comporte des empilages de disques racleurs contenus entre deux flasques métalliques (8). 4.- Device according to any one of claims 1 to 3, characterized in that it comprises stacks of scraper discs contained between two metal flanges (8). 5.- Dispositif selon l'une quelconque des revendications 1 à 4, caracterisé en ce que le câble d'acier (4) est recouvert d'une gaine plastique (5). 5.- Device according to any one of claims 1 to 4, characterized in that the steel cable (4) is covered with a plastic sheath (5). 6.- Dispositif selon l'une quelconque des revendications 1 à 5, caractérise en ce que les deux têtes (1) sont maintenues à ecartement à l'aide d'un manchon elastique (9) conférant à l'ensemble de l'élément la souplesse d'articulation nécessaire.  6.- Device according to any one of claims 1 to 5, characterized in that the two heads (1) are held apart by means of an elastic sleeve (9) giving the whole of the element the flexibility of articulation required.
FR8909146A 1987-04-03 1989-07-04 DEVICE FOR REPAIRING PIPES Expired - Fee Related FR2632547B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8909146A FR2632547B1 (en) 1987-04-03 1989-07-04 DEVICE FOR REPAIRING PIPES

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8704841A FR2613258B1 (en) 1987-04-03 1987-04-03 APPARATUS FOR IMPLEMENTING AN ORGANO-HYDRAULIC COMPLEX FOR SEALING BURIED CONDUITS
FR8909146A FR2632547B1 (en) 1987-04-03 1989-07-04 DEVICE FOR REPAIRING PIPES

Publications (2)

Publication Number Publication Date
FR2632547A1 true FR2632547A1 (en) 1989-12-15
FR2632547B1 FR2632547B1 (en) 1992-09-04

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FR8909146A Expired - Fee Related FR2632547B1 (en) 1987-04-03 1989-07-04 DEVICE FOR REPAIRING PIPES

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FR (1) FR2632547B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265433A (en) * 1992-03-25 1993-09-29 Total Sa Articulated pig system for pipelines
WO1999003607A1 (en) * 1997-07-15 1999-01-28 Tdw Delaware, Inc. An improved cup or disc for use as a part of a pipeline pig
US5903945A (en) * 1997-02-27 1999-05-18 Lundie; Kevin R.J. Pipeline pig
WO2002068134A1 (en) * 2001-02-26 2002-09-06 Enter Global Ltd Apparatus for cleaning a conduit interior and method therefor
CN105172693A (en) * 2015-09-23 2015-12-23 重庆燕蓝科技有限公司 Spiral type luggage frame water tank

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2188959A (en) * 1937-06-18 1940-02-06 Schaer Eugene Pipe cleaning element
DE2064708A1 (en) * 1970-01-01 1971-07-08 Gen Descaling Comp Ltd Pipeline pig to be used in two directions
FR2164414A5 (en) * 1971-12-10 1973-07-27 Lloyd Ltd Ernest
DE2801378A1 (en) * 1978-01-13 1979-07-19 Hubert Skibowski Pipeline cleaning pig - has elastomer sealing washers of slightly larger diameter than pipes at each end

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2188959A (en) * 1937-06-18 1940-02-06 Schaer Eugene Pipe cleaning element
DE2064708A1 (en) * 1970-01-01 1971-07-08 Gen Descaling Comp Ltd Pipeline pig to be used in two directions
FR2164414A5 (en) * 1971-12-10 1973-07-27 Lloyd Ltd Ernest
DE2801378A1 (en) * 1978-01-13 1979-07-19 Hubert Skibowski Pipeline cleaning pig - has elastomer sealing washers of slightly larger diameter than pipes at each end

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265433A (en) * 1992-03-25 1993-09-29 Total Sa Articulated pig system for pipelines
GB2265433B (en) * 1992-03-25 1995-08-16 Total Sa Articulated pig system for pipelines
US5903945A (en) * 1997-02-27 1999-05-18 Lundie; Kevin R.J. Pipeline pig
WO1999003607A1 (en) * 1997-07-15 1999-01-28 Tdw Delaware, Inc. An improved cup or disc for use as a part of a pipeline pig
US6067682A (en) * 1997-07-15 2000-05-30 Tdw Delaware, Inc. Cup or disc for use as a part of a pipeline pig
WO2002068134A1 (en) * 2001-02-26 2002-09-06 Enter Global Ltd Apparatus for cleaning a conduit interior and method therefor
CN105172693A (en) * 2015-09-23 2015-12-23 重庆燕蓝科技有限公司 Spiral type luggage frame water tank

Also Published As

Publication number Publication date
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