WO1998039523A1 - Dispositif de nettoyage d'un systeme de tuyaux - Google Patents

Dispositif de nettoyage d'un systeme de tuyaux Download PDF

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Publication number
WO1998039523A1
WO1998039523A1 PCT/NL1998/000138 NL9800138W WO9839523A1 WO 1998039523 A1 WO1998039523 A1 WO 1998039523A1 NL 9800138 W NL9800138 W NL 9800138W WO 9839523 A1 WO9839523 A1 WO 9839523A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure line
flushing medium
spray head
jet
directed
Prior art date
Application number
PCT/NL1998/000138
Other languages
English (en)
Dutch (nl)
Inventor
Lambertus Henricus Guillaume Maria Pols
Fredericus Johannes Maria Knibbeler
Original Assignee
Hollandsche Beton Groep N.V.
Helma Reinigingsdienst Vof
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
Application filed by Hollandsche Beton Groep N.V., Helma Reinigingsdienst Vof filed Critical Hollandsche Beton Groep N.V.
Priority to AU64236/98A priority Critical patent/AU6423698A/en
Publication of WO1998039523A1 publication Critical patent/WO1998039523A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • 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

Definitions

  • the invention relates to a device for cleaning a system of pipes or a system of underground channels which has at least one access opening, which device comprises a flexible pressure line, which at one end is connected to a spray head, which can be placed in the said system via the access opening and is provided with at least one nozzle for delivering a jet of flushing medium, and which at the other end is connected to a pressure device, as well as a support member on which the spray head can be moved through the system.
  • a device of this kind is known from GB-A-1,460,031.
  • the spray head of this device is mounted on a type of carriage, which has to be pulled through the pipe to be cleaned by means of cables.
  • the spray head is directed forwards and has to be held by means of the cables, since otherwise it would push the carriage, together with the pressure line, backwards as a result of the reaction force generated by the emerging jet of liquid.
  • the device can be used while the system of pipes or system of channels is in operation.
  • the pipes or channels involved relate to systems which convey a mixture of water and substances which are released during oil refining, such as crude oil, lubricant, paraffin products and the like. Sand and other fine particles usually settle out of mixtures of this kind.
  • GB-A- 1,460,031 it is proposed to generate turbulence, by means of a spray head, in the liquid situated in the system, in such a manner that the sediment passes into a suspension and can then be removed by pumping.
  • a drawback of the known device is that the system is not easy to manipulate and move onwards. It is firstly necessary to tension cables which bridge the distance between two successive manholes. To position these cables, it is necessary, for example, to use a separate robot; as an alternative, the cables can be positioned manually. Such a procedure is laborious and not devoid of risk. Particularly when the lines are full and/or there is a risk of explosion, it is necessary to use a robot which, however, can easily become stuck.
  • the object of the invention is therefore primarily to provide a device for cleaning a system of pipes or a system of underground channels which does not have this drawback.
  • This object is achieved by the fact that at least one of the nozzles is directed along the pressure line in order to deliver a jet of flushing medium which is directed backwards along the said pressure line, in such a manner that in operation a tensile force is exerted on the pressure line.
  • the support member is pushed forwards in the pipe or channel as a result of the reaction force of the jet of flushing medium which is directed backwards and is delivered at high pressure, and the pressure line is dragged along behind the support member. Meanwhile, the delivered jet or jets of the flushing medium exert a highly erosive action on the sediment. Moreover, the suspended sediment is driven backwards, in such a manner that it can be sucked out at a suitable location, preferably in the region of the access opening via which the cleaning device is introduced.
  • the spray head As the spray head is moved forwards, with its movement being controlled by paying out the pressure line more or less quickly under the influence of the tensile force exerted by the flushing medium, the pipe or the channel is gradually treated further and further on. After a certain distance has been covered, the support member can be brought back by hauling in the pressure line. If desired, the cleaning process can be repeated from the beginning until the desired level of cleaning has been achieved.
  • the spray head may be designed in all kinds of ways. It has a connection for the pressure line, from which connection a diverter line can run towards the nozzle, so as to divert the flushing medium to be delivered essentially through 180°. Depending on the spray pressures to be delivered and the size of the pipes or channels to be treated, a plurality of nozzles which are directed backwards can be used.
  • At least a second spray head may be situated on the support member, with one or more associated nozzles for delivering a jet of flushing medium, in such a manner that the resultant of all the jets of flushing medium delivered by the nozzles exerts a tensile force on the pressure line.
  • the spray head is situated on the front part of the support member, it is preferred for the jet of flushing medium delivered to be directed away from the pressure line. If a forwardly directed spray head of this kind is used, the sediment can be subjected to a preliminary treatment, in such a manner that the sediment can be removed more quickly and more thoroughly when the backwardly directed spray head passes by.
  • At least one spray head can be adjusted with respect to the support member about a transverse pin, in order to direct the jet of flushing medium upwards and downwards.
  • directing the jet in a suitable manner, it is possible to remove even any residual hard caking residues.
  • At least one spray head can adjusted by means of a piston-cylinder device; the piston-cylinder device is connected to the pressure line, while the spray head is continuously forced towards a base position under spring preloading, in such a manner that the spray head can be displaced counter to this preloading depending on the pressure of the flushing medium.
  • an upwardly directed nozzle and a downwardly directed nozzle may be provided in order to clean the entire cross-section of a pipe or channel.
  • Each downwardly directed nozzle can open out into a chamber which in turn opens out into an aperture of larger cross-section, in order to reduce the velocity and/or pressure of the emerging jet of flushing medium.
  • These upwardly and downwardly directed jets, as well as optional jets which are directed sideways, can be used to blast free a caked-on layer, which may also be covered with loose sediment.
  • the top layer of sediment can be brought into a liquid-like state, in such a manner that this layer can flow away as a liquid under the force of gravity.
  • the support member is designed as a carriage with a flat base plate.
  • the base plate may have an edge which rises obliquely upwards on the front side facing away from the pressure line. Furthermore, the base plate may have upright side edges as well as an upright rear edge. The support member can rest on the sediment without sinking into the sediment sufficiently deeply to impair the effectiveness of the nozzles.
  • the spray head described above may have one or more nozzles. It is suitable for treating pipes or channels with specific cross-sectional dimensions which may not exceed a maximum which is determined by the force of the jets delivered and their position, so as not to impair the effectiveness of the device.
  • two or more spray heads may be provided, each with at least one nozzle which is directed along the pressure line, in order to deliver a jet of flushing medium which is directed backwards along the said pressure line, in such a manner that in operation a tensile force is exerted on the pressure line.
  • At least two of the spray heads, with their associated support member, are connected to their own pressure line; as an alternative, all the spray heads may be connected to a manifold, which manifold is connected to a pressure line.
  • the manifold may be formed in accordance with (a part of) the cross-section of the pipe or channel.
  • the invention furthermore relates to a method for cleaning a system of pipes or a system of channels by means of a device as described above, comprising a flexible pressure line which at one end is connected to a spray head, which can be placed in the said system via the access opening and is provided with at least one nozzle for delivering a jet of flushing medium, and which at the other end is connected to a pressure device, as well as a support member on which the spray head can be moved through the system, and at least one of the nozzles is directed along the pressure line in order to deliver a jet of flushing medium which is directed backwards along the said pressure line, in such a manner that in operation a tensile force is exerted on the pressure line and the support member is moved forwards,' under the influence of the jet of flushing medium delivered by the nozzle, pulling the pressure line along with it.
  • the pressure line may be accommodated on a reel in such a manner that the forwards movement of the support member is controlled by paying out or winding in the pressure line.
  • the reel is often attached to a mobile pressure device, but it is also possible for the reel to be situated on a mobile frame, in which case the frame has a weight which is a number of times less than that of the pressure device.
  • a reel of this kind which is mounted on a mobile frame of low weight, makes it possible to reach locations to which it is difficult to gain access, for example where the access opening to the system of pipes or channels is situated within an area with weak or poor ground conditions, or in areas with a small positioning surface which is only suitable for a mobile frame of this kind.
  • the flushing medium can be supplied at a pressure of 50-400 bar; preferably, the flushing medium is supplied at a pressure of 125-225 bar.
  • Figure 1 shows a cross-section through a piece of ground with a pipe in which the cleaning device according to the invention has been placed.
  • Figure 2 shows a side view, partially in section, of a support member with spray heads.
  • Figure 3 shows a horizontal section through a spray head in accordance with Figure 2.
  • Figure 4 shows a partially cut-away section through a downwardly directed nozzle.
  • Figure 5 shows a bottom view of the support member.
  • Figure 6 shows a cross-section through an alternative nozzle.
  • Figure 7 shows a dual design of the cleaning device according to the invention.
  • Figure 8 shows an embodiment with four support members and spray heads.
  • FIG. 1 shows a piece of ground 1 in which the pipe, which is denoted by 2, is arranged.
  • the pipe is accessible via manhole 3.
  • a layer of sediment 4, consisting of sand and other fine particles, has formed in the pipe 2.
  • the pipe is further filled with, for example, oil-containing water (5) (black water), comprising a mixture of water, fats, paraffin and other substances which are released during oil refining.
  • oil-containing water (5) black water
  • the pipe is 100% full.
  • This sediment 4 has to be churned free and discharged when the pipe 2 is being cleaned.
  • the cleaning device which is denoted overall by 45 is used to carry out this operation, the device comprising a unit 6 with attached spray heads 7, 8, as well as a support member 9.
  • the spray heads are fed via a pressure line 10, which is connected to a lorry
  • the pressure line 10 is preferably unwound from a reel 12 and is diverted to the unit 6 via a support 13.
  • a suction line 14 is also lowered into the manhole 3, which suction line is connected to a lorry 15 on which is situated a suction pump with a container for holding the sediment which is churned free.
  • the unit 6 is illustrated on a larger scale in Figure 2. It comprises a carriagelike support member 9, a rear spray head 7 and a front spray head 8. At the top, the unit is covered by a grid of bars 16 which protect the spray heads 7, 8.
  • the backwardly directed spray head has a plurality of backwardly directed nozzles 17, as can also be seen in the horizontal section shown in Figure 3.
  • the liquid which is supplied at high pressure via pressure line 10, is diverted in the interior chamber 18 in the spray head 7 and is directed backwards, with the result that the emerging jets are obtained.
  • These emerging jets of liquid 19 firstly push the unit 6 forwards, dragging the pressure line 10 along behind it.
  • the jets of liquid 19 loosen the sediment, so that it becomes suspended in the liquid 5 and ultimately can be sucked out via the suction line 14.
  • the shape is preferred for the shape to be such that, during operation, the streams of liquid are diverted, at least with regard to two dimensions, in a completely streamlined manner.
  • One or more nozzles 20 which are directed further upwards are also arranged on the spray head 7, which nozzles deliver an upwardly directed jet of liquid in order to loosen parts of the sediment which are situated at a higher level.
  • a downwardly directed nozzle 21 is also provided in the carriage 9 of the unit 6. This nozzle 21, which is shown in section on a larger scale in Figure 4, is fed via line 22, which is connected to the pressure line 10.
  • the liquid emerging from the line 22 at high pressure passes into a widened chamber 23, in such a manner that the liquid emerges at the underside of the carriage 9 at a lower velocity, and can then additionally bring the sediment into suspension.
  • the carriage 9 has a flat bottom 24, as is also shown in the bottom view in accordance with Figure 5, as well as a front side 25 and rear side 26 which run obliquely upwards. Upright walls 27, 28 are also provided.
  • the advantage of a carriage 9 designed in this way is that the unit 6 will not sink quickly into the sediment.
  • the forward movement of the unit 6 under the influence of the jets of liquid 19 delivered through the nozzles 17 causes the unit 6 to slide over the sediment without sinking too deeply into the latter.
  • both the spray head 7 and the spray head 8 can be arranged such that they can rotate about transverse pins 30, 31.
  • both spray heads 7, 8 are directed in such a way that their jets are directed only slightly upwards.
  • the hydraulic piston-cylinder devices 34, 35 act counter to the action of the springs 32, 33. These piston-cylinder devices can be actuated, for example, by the liquid supplied via the pressure line 10. At a specific pressure of this liquid, the piston-cylinder devices 34 and 35 extend counter to the action of the springs 32 and 33, respectively.
  • the spray head 8 also has nozzles 36, which can be directed forwards, upwards and to the side, in order to deliver jets of liquid 37.
  • the unit 6 is moved through the pipe 2 by unwinding pressure line 10 from reel 12 or winding it onto reel 12 in a controlled manner.
  • the unit 6 can be moved backwards and forwards through the line 2 until the desired level of cleaning has been achieved. Even if the unit 6 is situated at a relatively great distance from the manhole 3, the suspended sediment particles can still be sucked at that location. This is because the suspended sediment is conveyed towards the said manhole 3 under the influence of the backwardly directed jets of liquid 17 which are delivered by the spray head 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

Ce dispositif (6), destiné à un système de nettoyage de tuyaux ou de canalisations souterraines (2), présente au moins une ouverture d'accès (3) ainsi qu'un conduit (10) de pression souple, relié au niveau d'une extrémité à une tête de pulvérisation (7, 8), laquelle peut être placée dans ledit système via l'ouverture d'accès (3) et est dotée d'au moins une buse (8) destinée à délivrer un jet d'un milieu de rinçage, l'autre extrémité du conduit étant reliée à des moyens sous pression (11). Ce dispositif comprend également un élément de support (9) sur lequel la tête de pulvérisation peut se déplacer, à travers le système. L'une au moins des buses (7, 8) est dirigée le long du conduit de pression, afin de fournir un jet de milieu de rinçage, dirigé sur l'arrière le long du conduit de pression (10), de manière que lors du fonctionnement du dispositif, une force de traction s'exerce sur ce conduit (10).
PCT/NL1998/000138 1997-03-07 1998-03-06 Dispositif de nettoyage d'un systeme de tuyaux WO1998039523A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU64236/98A AU6423698A (en) 1997-03-07 1998-03-06 Cleaning device for a system of pipes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1005474 1997-03-07
NL1005474A NL1005474C2 (nl) 1997-03-07 1997-03-07 Reinigingsinrichting voor buizenstelsel.

Publications (1)

Publication Number Publication Date
WO1998039523A1 true WO1998039523A1 (fr) 1998-09-11

Family

ID=19764557

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1998/000138 WO1998039523A1 (fr) 1997-03-07 1998-03-06 Dispositif de nettoyage d'un systeme de tuyaux

Country Status (3)

Country Link
AU (1) AU6423698A (fr)
NL (1) NL1005474C2 (fr)
WO (1) WO1998039523A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830470A1 (fr) * 2002-02-06 2003-04-11 Hydrolog Installation de curage des canalisations
WO2012129608A1 (fr) 2011-03-31 2012-10-04 Paris Jim Ensemble pour l'amélioration de l'élimination des débris tels que les racines et le tartre d'un tuyau à l'aide d'une buse de projection d'eau

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE631016A (fr) *
GB890090A (en) * 1956-05-07 1962-02-28 Oskar Maasberg Improvements in and relating to the cleaning of sewers
GB1460031A (en) 1973-03-09 1976-12-31 Insituform Pipes & Structures Removal of detritus from underground channels passages and the like
JPS5234566A (en) * 1975-09-10 1977-03-16 Sumitomo Electric Ind Ltd Tube body washing device
DE3237583A1 (de) * 1982-10-09 1984-04-12 Udo Th. 4740 Oelde Thüner Spuelkopf
EP0108587A2 (fr) * 1982-11-02 1984-05-16 Ian Roland Yarnell Appareil à caméra d'inspection dirigeable à distance
WO1985005295A1 (fr) * 1984-05-24 1985-12-05 Bo Larsson Buse hydrodynamique mobile pour le nettoyage a l'eau pressurisee de conduites d'eau, d'eaux superficielles et de decharge
DE3502916A1 (de) * 1985-01-29 1986-07-31 Hans 2800 Bremen Ziegenhagen Vorrichtung zur reinigung eines rohres, kanals o.dgl., insbesondere abwasserrohrs, -kanals o.dgl.
DE3705702C1 (en) * 1987-02-23 1988-09-01 Karl Wiedemann Apparatus for cleaning sewers
EP0294780A1 (fr) * 1987-06-09 1988-12-14 Airrigation Engineering Co. Inc. Contrôle chimique de la croissance de racines dans les égouts ou similaires
US5020188A (en) * 1989-08-04 1991-06-04 J. F. Walton & Co., Inc. Duct cleaning apparatus
DE9203787U1 (de) * 1992-03-20 1992-05-07 Pekico Kanalreinigung + Entsorgung GmbH & Co KG, 4938 Schieder-Schwalenberg Mit dem Spülkopf am vorderen Ende versehener Hochdruckschlauch
DE4332126A1 (de) * 1993-09-22 1995-03-23 Kroll Fahrzeugbau Gmbh Verfahren und Vorrichtung zum Reinigen von Kanalisations- und Rohrleitungssystemen mittels Druckwasser
DE4412480C1 (de) * 1994-04-12 1995-06-22 Kroll Fahrzeugbau Gmbh Verfahren zum Betrieb von fahrbaren Kanalreinigungsfahrzeugen und Kanalreinigungsanlage für die Durchführung des Verfahrens
DE4417753A1 (de) * 1994-05-20 1995-11-23 Kmg Mitte Gmbh & Co Kg Reingigunsgerät für Kanäle oder Rohre
DE4426939A1 (de) * 1994-07-29 1996-02-01 Kmg Mitte Gmbh & Co Kg Inspektionskopf für Seitenkanäle eines unterirdisch verlegten Abwassersystems

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE631016A (fr) *
GB890090A (en) * 1956-05-07 1962-02-28 Oskar Maasberg Improvements in and relating to the cleaning of sewers
GB1460031A (en) 1973-03-09 1976-12-31 Insituform Pipes & Structures Removal of detritus from underground channels passages and the like
JPS5234566A (en) * 1975-09-10 1977-03-16 Sumitomo Electric Ind Ltd Tube body washing device
DE3237583A1 (de) * 1982-10-09 1984-04-12 Udo Th. 4740 Oelde Thüner Spuelkopf
EP0108587A2 (fr) * 1982-11-02 1984-05-16 Ian Roland Yarnell Appareil à caméra d'inspection dirigeable à distance
WO1985005295A1 (fr) * 1984-05-24 1985-12-05 Bo Larsson Buse hydrodynamique mobile pour le nettoyage a l'eau pressurisee de conduites d'eau, d'eaux superficielles et de decharge
DE3502916A1 (de) * 1985-01-29 1986-07-31 Hans 2800 Bremen Ziegenhagen Vorrichtung zur reinigung eines rohres, kanals o.dgl., insbesondere abwasserrohrs, -kanals o.dgl.
DE3705702C1 (en) * 1987-02-23 1988-09-01 Karl Wiedemann Apparatus for cleaning sewers
EP0294780A1 (fr) * 1987-06-09 1988-12-14 Airrigation Engineering Co. Inc. Contrôle chimique de la croissance de racines dans les égouts ou similaires
US5020188A (en) * 1989-08-04 1991-06-04 J. F. Walton & Co., Inc. Duct cleaning apparatus
DE9203787U1 (de) * 1992-03-20 1992-05-07 Pekico Kanalreinigung + Entsorgung GmbH & Co KG, 4938 Schieder-Schwalenberg Mit dem Spülkopf am vorderen Ende versehener Hochdruckschlauch
DE4332126A1 (de) * 1993-09-22 1995-03-23 Kroll Fahrzeugbau Gmbh Verfahren und Vorrichtung zum Reinigen von Kanalisations- und Rohrleitungssystemen mittels Druckwasser
DE4412480C1 (de) * 1994-04-12 1995-06-22 Kroll Fahrzeugbau Gmbh Verfahren zum Betrieb von fahrbaren Kanalreinigungsfahrzeugen und Kanalreinigungsanlage für die Durchführung des Verfahrens
DE4417753A1 (de) * 1994-05-20 1995-11-23 Kmg Mitte Gmbh & Co Kg Reingigunsgerät für Kanäle oder Rohre
DE4426939A1 (de) * 1994-07-29 1996-02-01 Kmg Mitte Gmbh & Co Kg Inspektionskopf für Seitenkanäle eines unterirdisch verlegten Abwassersystems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1, no. 93 (M - 77)<2410> 26 August 1977 (1977-08-26) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830470A1 (fr) * 2002-02-06 2003-04-11 Hydrolog Installation de curage des canalisations
WO2012129608A1 (fr) 2011-03-31 2012-10-04 Paris Jim Ensemble pour l'amélioration de l'élimination des débris tels que les racines et le tartre d'un tuyau à l'aide d'une buse de projection d'eau
EP2691687A1 (fr) * 2011-03-31 2014-02-05 Paris, Jim Ensemble pour l'amélioration de l'élimination des débris tels que les racines et le tartre d'un tuyau à l'aide d'une buse de projection d'eau
EP2691687A4 (fr) * 2011-03-31 2015-01-21 Jim Paris Ensemble pour l'amélioration de l'élimination des débris tels que les racines et le tartre d'un tuyau à l'aide d'une buse de projection d'eau

Also Published As

Publication number Publication date
NL1005474C2 (nl) 1998-09-08
AU6423698A (en) 1998-09-22

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