WO2000003095A1 - Recuperateur - Google Patents

Recuperateur Download PDF

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Publication number
WO2000003095A1
WO2000003095A1 PCT/IB1999/001257 IB9901257W WO0003095A1 WO 2000003095 A1 WO2000003095 A1 WO 2000003095A1 IB 9901257 W IB9901257 W IB 9901257W WO 0003095 A1 WO0003095 A1 WO 0003095A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
chamber
oil
skimmer apparatus
skimmer
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.)
Ceased
Application number
PCT/IB1999/001257
Other languages
English (en)
Inventor
Robert Leonard Candy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU45279/99A priority Critical patent/AU4527999A/en
Publication of WO2000003095A1 publication Critical patent/WO2000003095A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • E02B15/10—Devices for removing the material from the surface
    • E02B15/106—Overflow skimmers with suction heads; suction heads
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/204—Keeping clear the surface of open water from oil spills

Definitions

  • THIS INVENTION relates to a skimmer apparatus.
  • the invention relates particularly to a skimmer apparatus whereby oil, or the like, can be skimmed from a body of water, to prevent or reduce oil pollution.
  • the skimmer apparatus of the invention can be used also for skimming any other substance or matter from a body of water, or other liquid, on which the substance or matter is floating. Also, where reference is made hereinafter to the water level or the level of the body of water, this must be interpreted to mean the level of the body of water including the oil layer floating thereon.
  • a skimmer apparatus for separating oil from a body of water on which the oil is floating, which comprises a body defining a separation chamber, an inlet mouth which is located and profiled to provide, in use of the apparatus, for a layer of water, having an oil layer floating thereon and without any air accompanying the layer, from a body of water, to be guided into the chamber by the relative displacement of the body with respect to the body of water and with the chamber being defined partially above and partially beneath the water level, at least one first outlet leading from the operative top region of the chamber and through which, in use, oil in the top region of the chamber can be displaced from the chamber, and at least one second outlet leading from the operative bottom region of the chamber and through which, in use, water can be displaced from the chamber; and a venturi formation located on the body in a location in which, in use, it is disposed beneath the water level and communicates with the second outlet in a configuration in which water flow through the venturi formation induces and enhances the displacement of water from
  • the operation of the skimmer apparatus of the invention requires the relative displacement of the body with respect to a body of water in which the apparatus is to function, as well as the passage of water through the venturi formation.
  • the skimmer apparatus either can be used within a moving body of water in which case the body of the skimmer apparatus will be securely positioned with respect to the moving body of water, or can be used within a stationery body of water in which case the body of the skimmer apparatus can be mounted on or form a part of a vessel whereby the body of the skimmer apparatus can be displaced with respect to the body of water.
  • the relative displacement of the body of the skimmer apparatus with respect to the body of water also will provide for the passage of water through the venturi formation, which is mounted in a suitable location on the body of the skimmer apparatus.
  • the venturi formation in use, ensures that water is displaced from the separation chamber at a sufficient rate to permit the required layer of water, having oil floating thereon, to enter the separation chamber.
  • the body of the skimmer apparatus may comprise an elongate structure that can span at least a portion of the width of the moving body of water and the inlet mouth may define an inlet slot-like formation extending along the width of the body.
  • a skimmer apparatus may include a float arrangement for retaining the body in a required configuration with respect to a body of water from which an oil layer is to be separated.
  • a skimmer apparatus may include a support structure that can extend across the moving body of water and support the body in its required configuration with respect to the moving body of water.
  • the body may include a mounting structure for mounting it on a displaceable vessel in a configuration in which the inlet mouth defined by the body, in use of the apparatus, faces in the direction of forward displacement of the vessel in a location in which a layer of water, having an oil layer floating thereon and without any air accompanying the layer, can be guided into the chamber during forward displacement of the vessel.
  • the inlet mouth will be disposed in a configuration in which the bottom edge will be disposed beneath the said water level, particularly by a distance determined by the thickness of the layer of water and oil to be skimmed from the body of water.
  • the skimmer apparatus may include a baffle formation defined within the body in the region of the inlet mouth, the baffle formation depending from the operative top side of the mouth in a configuration in which, in use, it serves to trap water and oil displaced into the separation chamber via the mouth, to prevent air from entering into the chamber and to reduce turbulence and hydraulic jump in the flow of oil and water entering the chamber.
  • the skimmer apparatus may include a liquid displacement means connected in line with the first outlet, for displacing oil from the top region of the separation chamber, in use of the apparatus.
  • a liquid displacement means connected in line with the first outlet, for displacing oil from the top region of the separation chamber, in use of the apparatus.
  • One particular embodiment of the invention provides for the skimmer apparatus to include a sealed vacuum tank located operatively above the body, the vacuum tank defining an upstream end connected in line with the first outlet defined by the body and an operatively higher downstream end connected in line with the liquid displacement means via a flow line which extends from the downstream end of the vacuum tank to the liquid displacement means via a location disposed, in use of the apparatus, beneath the level of the body of water in which the apparatus is operating.
  • the flow line extending from the vacuum tank to the liquid displacement means may have a shut-off valve located in line therewith.
  • the skimmer apparatus may include a second venturi formation connected in communication with the operative lower point of the vacuum tank at the upstream end thereof, the second venturi formation being supported, in use, to be disposed beneath the level of the body of water in which the apparatus is operating, in a configuration in which water flow through the second venturi formation will induce flow of water contained in the vacuum tank from the vacuum tank and thereby enhance the flow of oil from the separation chamber to the vacuum tank.
  • the water contained in the vacuum tank will be water separated from oil displaced from the separation chamber to the vacuum tank during the operation of the skimmer apparatus.
  • the body of the skimmer apparatus of the invention also may define at least two second outlets and, as such, the apparatus may include a venturi formation associated with each second outlet.
  • Figure 1 shows a schematic cross-sectional side view of a first embodiment of a skimmer apparatus for skimming an oil layer from a body of water, in accordance with the invention
  • Figure 2 shows a schematic end view of the skimmer apparatus of Figure 1
  • Figure 3 shows a schematic cross-sectional side view of the skimmer apparatus of Figure 1 , including an arrangement for displacing separated oil
  • Figure 4 shows the skimmer apparatus of Figure 3, having a modified arrangement for displacing separated oil
  • Figure 5 shows a schematic cross-sectional side view of a second embodiment of a skimmer apparatus for skimming an oil layer from a body of water, in accordance with the invention.
  • Figure 6 shows a schematic plan view of the skimmer apparatus of Figure 5.
  • a first embodiment of a skimmer apparatus for skimming an oil layer from a body of water is designated generally by the reference numeral 1 0.
  • the skimmer apparatus 10 is provided particularly for use in a moving body of water and comprises a body 1 2 which is positionable within the moving body of water 1 4, the required water line of the body of water 14 in the operative configuration of the skimmer apparatus 10 being illustrated by the dotted line 1 6.
  • the body 1 2 defines a separation chamber 1 8 which, in the operative configuration of the skimmer apparatus 10 as shown, is disposed partially above the water line 1 6 and partially beneath the water line 1 6.
  • the body 12 defines also an inlet mouth 20 which comprises an elongate slot-like opening which, in practice, will extend across a substantial portion of the width of the moving body of water 14 from which an oil layer is to be separated, preferably along substantially the entire width of the moving body of water.
  • the inlet mouth 20 has an operative height between the top and bottom edges thereof which will permit a layer of water, having an oil layer floating thereon and without any air accompanying the layer, to be guided into the chamber 18 via the inlet mouth 20, by the relative displacement of the moving body of water with respect to the body 12.
  • the layer of water to be guided into the chamber 18 will have substantially the entire oil layer to be separated floating thereon.
  • the oil will take up the space in the operative top region of the chamber, whereas the water will take up the space in the bottom region of the chamber.
  • the body 12 defines further a first outlet 24 which leads from the operative top region of the chamber 18, permitting oil from the top region of the chamber 18 to be displaced from the chamber by any suitable liquid displacement means, such as by a pump, or the like.
  • a valve 26 is provided in the location illustrated for the purpose described hereafter.
  • the body 12 defines still further a second outlet 28 which is defined in the operative bottom region of the chamber 18, the outlet 28 communicating with a venturi formation 30 which is disposed in a configuration in which the relative displacement of the moving body of water with respect to the body 12 will provide for water to flow through the venturi formation 30. It will be understood that an accelerated water flow will occur within the narrower region
  • a diffuser plate 22 further is located in the chamber 1 8 relative to the inlet mouth 20 in a position in which it ensures that the outflow of water via the outlet 28 will not result in oil flowing directly from the mouth 20 to the outlet.
  • oil separated from water and collected within the chamber 1 8 can be displaced from the chamber 1 8 to a desired location, e.g. a storage tank, or the like, which is located remote from the apparatus 1 0.
  • a desired location e.g. a storage tank, or the like, which is located remote from the apparatus 1 0.
  • the said pump and storage tank also can form a part of the skimmer apparatus of the invention.
  • the apparatus as described in Figures 1 and 2 of the drawings, in its operative configuration therefore will provide for the body 1 2 to extend across the width of a moving body of water, e.g. a river, a stream, a channel, a canal, or the like, with the inlet mouth 20 being disposed transversely to the direction of water flow.
  • a moving body of water e.g. a river, a stream, a channel, a canal, or the like
  • this configuration of the inlet mouth will provide for a layer of water, which has a layer of oil floating thereon and without water accompanying the later, to enter the chamber 1 8.
  • a baffle formation 36 is disposed in this inlet mouth region of the body, depending effectively from the top side of the mouth 20.
  • the baffle formation 36 is configured to prevent "hydraulic jump" of liquid entering into the chamber as a result of the fast moving incoming layer of liquid, including the water layer and the oil layer, merging with the near stationery liquid in the chamber, thus preventing liquid turbulence in this region and thereby reducing mixing of the oil and water entering into the chamber 18.
  • the baffle formation also serves as a trap for ensuring that reverse flow through the inlet mouth cannot occur and also that air cannot enter the chamber.
  • the outlet 24 is connected to a pump 40 via a vacuum tank 42 which has an upstream end 44, where oil from the chamber 18 will enter the vacuum tank 42, and an operatively higher downstream end 46, from which oil from the vacuum tank will be displaced by the pump 40 via a flow line 48 which defines a segment 50 which is disposed beneath the water level 16 as shown.
  • a flexible flow line connects the outlet 24 to the upstream end 44 of the tank 42, the flexibility of the flow line serving to accommodate movement of the body 12.
  • a valve 52 can open and shut the oil line 48.
  • This oil displacement arrangement clearly constitutes a completely sealed arrangement which, after effective priming thereof, will ensure the efficient operation of the complete apparatus 10 and particularly the efficient separation of oil from a body of water, in the manner described above.
  • the valves 26 and 52 facilitate the required priming of the arrangement. Insofar as a water component may still exist within the oil separated from the chamber 1 8, this water will separate from the oil while retained within the vacuum tank 42, where it will be retained in the operative lower region thereof. A drainage aperture therefore may be provided for draining water from the tank 42 when required .
  • the vacuum tank 42 also has a filler point 54 which will permit effective priming of the complete apparatus prior to initiating use thereof, particularly to eliminate air within the system.
  • the upstream end 44 of the vacuum tank 42 may have a drainage outlet 56 associated therewith which communicates with a second venturi 58 disposed beneath the water level
  • venturi 58 in effect creating a negative pressure for inducing the outflow of water from the tank 42 and simultaneously improving the efficiency of the apparatus 1 0 for separating a floating oil layer from a body of water.
  • a baffle plate 59 is located within the vacuum tank 42 for separating oil and water and ensuring that only water will be drained from the tank in use of the apparatus
  • the body 1 2 has buoyancy tanks 60 associated therewith which will provide for the apparatus 1 0 to float in its required configuration with respect to the moving body of water.
  • a support structure 62 is provided to secure the location of the apparatus 1 0, particularly where it is to fulfil a permanent function.
  • a second embodiment of a skimmer apparatus in accordance with the invention, is designated generally by the reference numeral 100.
  • the skimmer apparatus 100 again includes a body 1 1 2.
  • the body 1 1 2 is adapted to be mounted on a displacement vessel 102 which is illustrated most clearly in dotted lines in Figure 6.
  • Suitable mounting means are associated with the apparatus 1 00 for mounting it on the vessel 1 02, the vessel 102 typically comprising a motorized boat, e.g . a ski-boat, or the like, with the skimmer apparatus 100 thus being adapted particularly for use in separating an oil layer from a stationary body of water.
  • the vessel 102 thus provides for the required relative displacement of the apparatus 100 with respect to a body of water, the inlet mouth defined by the body 1 1 2 of the apparatus 1 00, in use, facing transversely to the direction of forward displacement of the vessel 102, so that by the displacement of the vessel a layer of liquid can be induced to enter the chamber
  • venturi formation 1 30 of the apparatus 100.
  • the oil component of the liquid layer entering the chamber 1 1 8 will be pumped from the chamber via an oil line 1 34 via first outlets 1 24, whereas the water will be re-introduced into the body of water via a second outlet 1 28 associated with the venturi formation 1 30.
  • two or more venturi formations may be located on the body 1 1 2, it being envisaged in particular that a separate venturi formation 1 30 may be located on each side 1 04 of the body 1 1 2.
  • the operation of the apparatus 1 00 will be equivalent to that of the apparatus 1 0.
  • the required relative displacement between the apparatus and the body of water will be provided by the displacement of the apparatus 1 00 by the vessel 1 02, which will in turn provide for the separation of an oil layer from the stationary body of water in the manner described.
  • the vessel 102 clearly can provide for the apparatus 1 00 to traverse the stationary body of water along a path which will provide for oil floating on the body of water to be separated therefrom. Oil separated will be displaced to a suitable storage facility with the aid of a pump, or the like, which can be located in any suitable location with respect to the apparatus 100, it being envisaged in this regard that a suitable storage facility can be provided as part of the apparatus 100.
  • the apparatus 100 can be provided in combination with a dedicated vessel which in effect will form a part of the apparatus and the invention accordingly extends to such a vessel which incorporates a skimmer apparatus as herein envisaged as a part thereof.
  • the apparatus of the invention is effectively motorized and many have different configuration motorized versions of the apparatus for different applications are envisaged.
  • the skimmer apparatus of the invention is used in a permanently positioned situation where it extends across a waterway, continuous liquid flow through the apparatus is provided for.
  • oil pollution has occurred, the oil floating on the water will separate in the manner described and the apparatus of the invention may then be rendered operable so that only when a predetermined volume of oil is identified within the separation chamber, a pump will be triggered for displacing the oil from the separation chamber to an oil storage tank, or the like. This can then also trigger an oil spillage warning alarm for warning that an oil spillage along the waterway has indeed occurred .
  • the skimmer apparatus of the invention can be adapted also for various other specific applications in relation to situations where oil spillages can potentially occur.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Removal Of Floating Material (AREA)

Abstract

L'invention concerne un récupérateur (10) permettant de séparer une couche d'huile d'un corps d'eau (14). Ce récupérateur comprend un corps (12) définissant une chambre de séparation (18) et une bouche d'entrée (20) pouvant être positionnée par rapport au corps d'eau (14) dans une position telle qu'une couche d'eau du corps d'eau, sur laquelle flotte un film d'huile, puisse être guidée, sans air accompagnant l'huile et l'eau (14), dans la chambre (18) par déplacement du corps (10) par rapport au corps d'eau (14). Le corps (10) définit également une première sortie (24) située au départ de la région supérieure de la chambre de séparation (18) et destinée à évacuer l'huile de la chambre (18), et une deuxième sortie (28) située au départ de la zone inférieure de la chambre (18) et communicant avec une formation Venturi (30). L'eau s'écoulant par la formation Venturi (30) produit un flux d'eau provenant de la chambre de séparation (18) à une vitesse suffisante pour permettre à l'eau requise et au film d'huile d'entrer dans la chambre (18) via la bouche d'entrée (20).
PCT/IB1999/001257 1998-07-10 1999-07-07 Recuperateur Ceased WO2000003095A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45279/99A AU4527999A (en) 1998-07-10 1999-07-07 Skimmer apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA98/6148 1998-07-10
ZA986148 1998-07-10

Publications (1)

Publication Number Publication Date
WO2000003095A1 true WO2000003095A1 (fr) 2000-01-20

Family

ID=25587135

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1999/001257 Ceased WO2000003095A1 (fr) 1998-07-10 1999-07-07 Recuperateur

Country Status (2)

Country Link
AU (1) AU4527999A (fr)
WO (1) WO2000003095A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004111347A1 (fr) * 2003-06-18 2004-12-23 Olafur Ogmundsson Procede et appareil pour recuperer des deversements de petrole
CN118255419A (zh) * 2022-12-26 2024-06-28 青岛海尔智慧生活电器有限公司 油水分离装置、容器及家用电器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929644A (en) * 1970-12-28 1975-12-30 George M Fletcher Watercraft for scavenging oil spillage
US3966615A (en) * 1974-06-25 1976-06-29 Petchul Sigvald L Oil collection barge
US4151081A (en) * 1971-06-04 1979-04-24 Seaclean Sa Process and plant for hydromechanical recovery of a fluid spread in a thin layer on the surface of another liquid
EP0117853A2 (fr) * 1983-03-01 1984-09-05 Giuseppe Ayroldi Appareil pour la récupération de produits pétroliers ou d'autres produits similaires flottants sur des cours d'eau à eau courante

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929644A (en) * 1970-12-28 1975-12-30 George M Fletcher Watercraft for scavenging oil spillage
US4151081A (en) * 1971-06-04 1979-04-24 Seaclean Sa Process and plant for hydromechanical recovery of a fluid spread in a thin layer on the surface of another liquid
US3966615A (en) * 1974-06-25 1976-06-29 Petchul Sigvald L Oil collection barge
EP0117853A2 (fr) * 1983-03-01 1984-09-05 Giuseppe Ayroldi Appareil pour la récupération de produits pétroliers ou d'autres produits similaires flottants sur des cours d'eau à eau courante

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004111347A1 (fr) * 2003-06-18 2004-12-23 Olafur Ogmundsson Procede et appareil pour recuperer des deversements de petrole
CN118255419A (zh) * 2022-12-26 2024-06-28 青岛海尔智慧生活电器有限公司 油水分离装置、容器及家用电器

Also Published As

Publication number Publication date
AU4527999A (en) 2000-02-01

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