EP0012067B1 - Vorrichtung zur Reinigung von Flüssigkeitsoberflächen - Google Patents

Vorrichtung zur Reinigung von Flüssigkeitsoberflächen Download PDF

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Publication number
EP0012067B1
EP0012067B1 EP79400899A EP79400899A EP0012067B1 EP 0012067 B1 EP0012067 B1 EP 0012067B1 EP 79400899 A EP79400899 A EP 79400899A EP 79400899 A EP79400899 A EP 79400899A EP 0012067 B1 EP0012067 B1 EP 0012067B1
Authority
EP
European Patent Office
Prior art keywords
floating
wings
towing
barrage
rope
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
Application number
EP79400899A
Other languages
English (en)
French (fr)
Other versions
EP0012067A1 (de
Inventor
Jean Armand Louis Bronnec
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.)
D'exploitation Des Procedes EGMO SE Ste
Original Assignee
D'EXPLOITATION DES PROCEDES EGMO (SEP - EGMO) SARL Ste
D'exploitation Des Procedes Egmo (sep - Egmo) Sarl Ste
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 D'EXPLOITATION DES PROCEDES EGMO (SEP - EGMO) SARL Ste, D'exploitation Des Procedes Egmo (sep - Egmo) Sarl Ste filed Critical D'EXPLOITATION DES PROCEDES EGMO (SEP - EGMO) SARL Ste
Publication of EP0012067A1 publication Critical patent/EP0012067A1/de
Application granted granted Critical
Publication of EP0012067B1 publication Critical patent/EP0012067B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
    • E02B15/0842—Devices for reducing the polluted area with or without additional devices for removing the material adapted to be towed for operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/918—Miscellaneous specific techniques
    • Y10S210/922—Oil spill cleanup, e.g. bacterial
    • Y10S210/923—Oil spill cleanup, e.g. bacterial using mechanical means, e.g. skimmers, pump

Definitions

  • the invention relates to the recovery of floating materials and more particularly of floating pollution on the surface of water using a cleaning device comprising a recovery device whose mouth at least is mounted on a floating element and a dam floating comprising two wings which diverge from the lateral sides of the mouth of the recovery device and whose opposite ends are pulled by a tractor assembly formed by at least one towing vehicle.
  • suction, noria, vane pump, etc. All have a slightly submerged mouth which is followed by an elevator bringing the collected materials to an evacuation chute which pours them into a decantation and storage tank. Very often the device is mounted on a barge which at the same time carries the settling tank.
  • the entire dam can be pulled by land-based machines from the shore or by tugs.
  • each of the wings is formed by in-line coupling of hollow light elements with thin inflatable or rigid walls.
  • the walls are in rubberized or plasticized canvas, or in plastic fabrics or in metal.
  • the invention provides a device for cleaning liquid surfaces comprising a floating barrier for sweeping the sheet of floating materials and directing it by concentrating it towards the mouth of a recovery device, in which the barrier has a weak draft. , a low wind resistance, a very high mechanical tensile strength, a great flexibility, a minimal space requirement for transport and which also allows an easy and fast implementation.
  • the device according to the preamble of claim 1 is remarkable in that each of the wings of the floating boom is constituted by a floating rope of good resistance and the tension of which is adjusted so as to allow, when the tow rope is stretched to the maximum, a sufficient flexibility to substantially follow the vertical movements of the liquid surface without, however, allowing the formation of an excessively pronounced curvature in horizontal projection.
  • a device for cleaning a liquid surface comprises a tractor assembly, formed here by a towing boat 10, which pulls a floating boom comprising two wings 11 a and 11 b which converge towards the rear.
  • the tractor assembly could comprise, for example, two towing vehicles, these vehicles could be land vehicles when it comes to cleaning in the immediate vicinity of the shore, but in any case the tractor assembly is provided with a single coupling means 12 provided with three attachment points, namely an attachment point 13a, 13b, at each of its ends and a central attachment point 14.
  • This coupling means 12 extends transversely relative to the direction F of the towing, that is to say the direction of advance of the device.
  • the body 11a a and 11b of the floating dam are respectively intended for mooring the ends of the wings 11a a and 11b of the floating dam and must be as close as possible to the surface of the water body.
  • the arms 16a, 16b of the lifter are free to move around a horizontal hinge 17 and that they each carry at their free end a float 18a, 18b suitably profiled and it is sufficient then that the points of fasteners 13a, 13b are located in the immediate vicinity of the float.
  • This arrangement also makes it possible, out of service, to fold the arms upwards as shown in broken lines in FIG. 3 to facilitate the maneuvers of the tug 10.
  • Each of the wings 11a and 11b of the floating boom is constituted by a floating rope of high tensile strength, preferably made of synthetic fibers (polyamide or polypropylene).
  • the density of these fibers and the braiding mode make these cables, of known type, float naturally by remaining submerged over half, or a little more, of their height.
  • the ropes 11 a and 11 b are moored to a floating element 20 which carries at least the mouth 19 of an apparatus 21 for recovering floating materials, the attachment points 23a and 23b being located on either side of the mouth.
  • the floating element 20 is a barge which carries the recovery device 21 in its entirety and, moreover, in known manner, a decantation tank 22, but the floating element could carry a simple pocket connected by a flexible hose to a pumping means.
  • the floating element 20 is connected to the central attachment point 14 of the lifter 12 by a towing rope 24.
  • This floating element generally offers sufficient resistance to the relative movement of the tug so that the rope 24 is constantly tensioned. However, if possible currents pushed the element 20 towards the tug 10 by "giving slack" to the rope 24, it is necessary that the element 20 is provided with a motor whose propeller beating behind, ensures the tension of the line 24.
  • the attachment points 23a, 23b of the cables 11a and 11b on the floating element are closer to each other than the attachment points 13a, 13b of the said cables on the lifter 12. Furthermore the lengths relative of the rope 24 and a rope 11a a or 11b are such that when the rope 24 is tensioned, the ropes 11a a and 11b are substantially straight and retain only the flexibility necessary to follow the vertical movements of the liquid surface ( see figure 2) without taking a curvature in horizontal projection. Seen in plan (figure 1) the whole of the floating dam thus has the aspect of a head of arrow directed towards the rear.
  • the relative values of the length of the rope 24 and the span of the lifter 12 are such that the angle formed by the two wings 11a, 11b is small, of the order of 10 to 20 °.
  • the spreader of the lifter is about 30 meters and the length of the rope is 150 meters.
  • the floating dam is completed by a plurality of additional floating strands, such as 25 arranged in fishbone.
  • Each strand 25 connects a respective point 26 of one of the wings of the dam to a point 27, located further back, of the tow line 24 and has a section close to that of said wings but ends in a portion 28 very thinned at neighborhood of its attachment on the rope 24.
  • the elements of the floating dam that is to say the wings 11a and 11b and the optional additional strands 25, a section which increases slightly continuously as one goes from the front towards the 'rear to avoid material leakage due to thickening of the web.
  • the operation is as follows.
  • the tug 10 advances on the water whose surface is polluted.
  • Floating pollution for example a sheet 30 (FIG. 4) of hydrocarbon, passes under the arms 16a, 16b of the lifter 12, along the tug and meets the wings 11a, 11b of the floating boom, then when they exist, the additional strands 25.
  • the tablecloth or the layer of miscellaneous waste is deflected as indicated by the arrows f in Figure 1, which prevents it from accumulating and thickening to the point of passing over or under the strands under the effect of waves and / or speed.
  • the inclined position of the wings 11a, 11b and of the strands 25 relative to the axis of advancement F of the device means that with respect to the longitudinal liquid threads f ′ (FIG. 4) the section encountered is a elongated ellipse of hydrodynamic shape (general case of cables of circular section).
  • the device can thus operate continuously if, for example, the floating element 20 is a barge which is replaced by another as soon as it is full. Indeed, the lightness of the system allows extremely fast mooring and dropping maneuvers. It should also be noted that the barge with the recovery device is in the wake of the tug, therefore in a sheltered area and, in the case of oil pollution, on an oily sheet therefore "flat" which promotes recovery.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
  • Removal Of Floating Material (AREA)

Claims (6)

1. Vorrichtung zur Reinigung von Flüssigkeitsoberflächen mit einer Einrichtung zum Rückgewinnen (21) schwimmender Stoffe, deren Mündungsöffnung (19) wenigstens auf einem schwimmenden Element (20) und einer schwimmenden Absperrung mit zwei Flügeln (11a, 11b) montiert ist, die von den beiden Seiten der Mündungsöffnung (19) der Rückgewinnungseinrichtung (21) divergieren und deren gegenüberliegende Enden von einer Schleppereinheit (10) gezogen werden, gebildet durch wenigstens ein Schleppschiff und eine Anhängeeinrichtung (12) tragend, die sich quer zur Schleppachse erstreckt und die mit drei Befestigungspunkten ausgestattet ist, einem (14) in ihrer Mitte für ein Schlepptau (24), befestigt an seinem gegenüberliegenden Ende am schwimmenden Element (20), und einem (13a, 13b) an jedem ihrer Enden so nahe wie möglich der Wasseroberfläche zum Befestigen des äußersten Endes des entsprechenden Flügels der schwimmenden Absperrung, dadurch gekennzeichnet, daß jeder der Flügel aus einem schwimmenden Tau (11 a, 11b) guter Festigkeit besteht und deren Spannung so geregelt ist, daß, wenn das Schlepptau (24) maximal gespannt ist, genügend Nachgiebigkeit möglich ist, um im wesentlichen den vertikalen Bewegungen der Flüssigkeitsoberfläche zu folgen, ohne jedenfalls die Bildung einer zu ausgeprägten Krümmung in horizontaler Projektion zuzulassen.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die relativen Längen der Anhängeeinrichtung (12) und des Schlepptaus (24) so sind, daß die beiden Flügel (11 a, 11 b) der schwimmenden Absperrung zwischen sich einen kleinen Winkel vorzugsweise unter 20° bilden.
3. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die Anhängeeinrichtung (12) eine Dreiecks-Rohrtraverse ist, an ihrem Scheitel angelenkt um eine vertikale Achse (15), getragen von einem Schleppschiff (10), und deren Arme (16a, 16b), um ein horizontales Scharnier (17) frei schwingend, jeweils an ihrem äußersten Ende einen geeignet profilierten Schwimmer (18a, 18b) tragen.
4. Vorrichtung nach irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sie außerdem eine Anzahl schwimmender Seilenden (25) trägt, die zusätzlich im Fischgrätenverband angeordnet sind, wobei jedes von ihnen über eines seiner Enden an einer jeweiligen Stelle (26) eines der Flügel (11a, 11b) der schwimmenden Absperrung und über sein anderes Ende an einer Stelle (27) des zentralen Schlepptaus (24) befestigt ist, hinter dem ersten, bezogen auf die Bewegungsrichtung (F) der Vorrichtung, gelegen, wobei die schwimmenden Seilenden einen Schnitt nahe dem der Flügel der Absperrung aufweisen, aber in einem stark verjüngten Schnitt (28) nahe ihrer Befestigung am zentralen Schlepptau (24) enden.
5. Vorrichtung nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Querschnitt der Flügel (lla, 11b) der schwimmenden Absperrung sowie der der zusätzlichen Seilenden (25), wenn sie vorliegen, von vorn nach hinten kontinuierlich leicht zunimmt, um das Entweichen der Stoffe aufgrund zunehmender Schichtdicke zu vermeiden.
6. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß eine Hebeeinrichtung vorgesehen ist, um die Arme der Traverse um das horizontale Scharnier (17) bei Betriebsende hochzuklappen, um die Manöver des Schleppschiffes (10) zu erleichtern.
EP79400899A 1978-12-04 1979-11-22 Vorrichtung zur Reinigung von Flüssigkeitsoberflächen Expired EP0012067B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7834077A FR2443376A1 (fr) 1978-12-04 1978-12-04 Dispositif de nettoyage des surfaces liquides
FR7834077 1981-04-12

Publications (2)

Publication Number Publication Date
EP0012067A1 EP0012067A1 (de) 1980-06-11
EP0012067B1 true EP0012067B1 (de) 1983-06-15

Family

ID=9215650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400899A Expired EP0012067B1 (de) 1978-12-04 1979-11-22 Vorrichtung zur Reinigung von Flüssigkeitsoberflächen

Country Status (6)

Country Link
US (1) US4294698A (de)
EP (1) EP0012067B1 (de)
JP (1) JPS55109485A (de)
DE (1) DE2965689D1 (de)
ES (1) ES485496A1 (de)
FR (1) FR2443376A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486559A1 (fr) * 1980-03-21 1982-01-15 Inst Francais Du Petrole Filet special du type chalut pour la collecte de produits flottants
US5087152A (en) * 1990-08-23 1992-02-11 Whidden Malcolm B Boom for containing oil spills and methods of deploying and retrieving same
NL1029936C2 (nl) * 2005-09-13 2007-03-15 Koseq B V Systeem voor het van een wateroppervlak verwijderen van olie.
US20110188934A1 (en) * 2010-01-29 2011-08-04 Steinar Heimtun Device For Concentration Of Material On A Water Surface And Use Of The Device
NO334750B1 (no) * 2011-12-09 2014-05-19 Md Group As Anordning for oppsamling av forurensing på en vannoverflate
FI128632B (fi) * 2018-03-07 2020-09-15 M&L Patent Oy Ab Öljyntorjuntayksikkö

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1528855A (fr) * 1967-05-02 1968-06-14 Procédé et dispositif de draguage, récupération et décantation simultanés des produits pétroliers et autres liquides en mer
US3656624A (en) * 1969-12-12 1972-04-18 James F Walton Apparatus for collecting waste from the surface of a body of water
US3557960A (en) * 1969-12-16 1971-01-26 Ocean Pollution Control Inc Oil skimming apparatus
US3612280A (en) * 1970-01-21 1971-10-12 Ocean Pollution Control Inc Oil-skimming apparatus
US3662891A (en) * 1970-04-22 1972-05-16 Edward E Headrick Apparatus for confining floating materials
US3653510A (en) * 1970-04-27 1972-04-04 Ocean Pollution Control Inc Oil skimming method and apparatus
US3618768A (en) * 1970-05-08 1971-11-09 Kenard D Brown Liquid sweeping system employing helical conveyor method and apparatus
US3730346A (en) * 1971-03-01 1973-05-01 Cortland Skinner Skimming system
JPS5134222B1 (de) * 1971-04-30 1976-09-25
FR2174454A5 (de) * 1972-02-29 1973-10-12 Roche Andre

Also Published As

Publication number Publication date
FR2443376B1 (de) 1982-05-28
DE2965689D1 (en) 1983-07-21
EP0012067A1 (de) 1980-06-11
JPS55109485A (en) 1980-08-22
US4294698A (en) 1981-10-13
FR2443376A1 (fr) 1980-07-04
ES485496A1 (es) 1980-05-16

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