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
  • E02B15/046—Collection of oil using vessels, i.e. boats, barges
• • 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

• the present invention relates to an apparatus for skimming oil spilled on water and a method therefor, and in particular, to an improved apparatus for skimming oil spilled on water and a method therefor which are capable of effectively skimming oil spilled on water due to a sunken oil tanker or the damages of oil tanker or a general vessel on water.
• skimming vessels In Germany, since 1980, about 20 skimming vessels are manufactured. These skimming vessels adapt an advancing weir skimmer (AWS) method in which the skimming vessel is forwardly advanced and then skims oil spread.
• AWS advancing weir skimmer
• This suction type vessel or weir method is unable to skim a lot oil within a short time. In the case that the advancing speed of the vessel is increased, the skimming efficiency is decreased.
• the RO-CLEAN DESMI has a 20 year history as a marine pollution prevention equipment fabrication company and manufactures an oil boom and various types of skimmer having an excellent performance.
• the JBF SCIENTIFIC Co. manufactures various VOSS (Vessel of Opportunity Skimming system) and is characterized in that the oil spilled is quickly skimmed using a V-sweep installed on a stem of the vessel, and the V-sweep is lift-up when moving, so that the vessel can quickly move to the site of the oil pollution.
• VOSS Vehicle of Opportunity Skimming system
• an apparatus for skimming oil spilled on water which includes a suction unit including a floating suction unit floated at a predetermined height for quickly sucking a floating oil spread on the wide surfaces of water (sea), and an ejector for generating a sucking force based on a pressure drop generated when a liquid passes through at a high speed based on a main pump for generating a suction force in the floating suction unit, a separation unit including an open separation tank installed in the interior of the vessel, in which separation unit a portion of the bottom of the vessel is opened so that the mixed liquid sucked by the suction unit is separated based on a specific gravity difference, and the water from which oil is separated is automatically discharged, and a transfer control unit including a multiple tiers pump for transferring the liquid of the separation unit, water-oil sensors installed in each separation unit for controlling the operation of the pump and a control panel and controllers for implementing a control operation in accordance with a signal from the water
• a method for skimming oil spilled on water which includes the steps of sucking an oil film and water using a suction force generated by a main pump and an ejector with respect to a floating oil widely spread on water based on a floating type multiple aperture suction means floating at a predetermined height, and separating the oil and water of the mixed liquid sucked by the suction means based on a specific gravity difference in an open separation tank having its opened portion and automatically discharging the separated water through the opened portion of the open separation tank.
• Figure 1 is a side view illustrating a skimming vessel adapting an apparatus for skimming oil spilled on water according to the present invention
• Figure 2 is a plan view illustrating a skimming vessel adapting an apparatus for skimming oil spilled on water according to the present invention
• Figure 3 is a schematic view illustrating the construction of major parts of an apparatus for skimming oil spilled on water according to the present invention
• Figure 4 is a cross-sectional view illustrating a floating state of a floating type multi-aperture suction unit according to the present invention
• Figure 5 is a block diagram illustrating a transferring control unit according to the present invention.
• Figures 6 and 7 are plan views illustrating an operational state of an apparatus for skimming oil spilled on water according to the present invention.
• the apparatus for skimming oil spread on water includes a suction unit 100 including a floating suction unit floated for quickly sucking a floating oil spread on the wide surfaces of water (sea) and an ejector 120 for generating a sucking force based on a pressure drop generated when a liquid passes through at a high speed based on a main pump 110 for generating a suction force in the floating suction unit, a separation unit 200 including an open separation tank 220 installed in the interior of the vessel, in which separation unit 200 a portion of the bottom of the vessel is opened so that the mixed liquid sucked by the suction unit 100 is separated based on a specific gravity difference, and the water from which oil is separated is automatically discharged, and a transfer control unit 300 including a multiple
• Figure 4 illustrates the separation unit 200 includes a silencer tank 210 partitioned by a plurality of partition plates 211 for calmly stabilizing the liquid introduced from the suction unit 100 at high speed, an open separation tank 220 having its opened lower portion for separating the mixed liquid introduced from the stabilizing tank 210 based on the specific gravity difference for thereby naturally discharging water, and a separation tank 230 installed above the stabilizing tank 210 and the open separation tank 220 for spraying the floated oil using the transfer control unit for thereby separating water and oil.
• a silencer tank 210 partitioned by a plurality of partition plates 211 for calmly stabilizing the liquid introduced from the suction unit 100 at high speed
• an open separation tank 220 having its opened lower portion for separating the mixed liquid introduced from the stabilizing tank 210 based on the specific gravity difference for thereby naturally discharging water
• a separation tank 230 installed above the stabilizing tank 210 and the open separation tank 220 for spraying the floated oil using the transfer control unit for thereby separating water and
• the suction unit 100 includes a buoy 131 floated on the surface of water, a weight 132 for balancing the buoy
• the transfer control unit 300 includes a pump I 330, a pump II 340, a pump III 350 which are operated in accordance with the control of the control panel 320 and the controllers 321, 322 and 323 into which the signal detected by the water-oil sensors 310, 311 and 312 disposed at the portions of the silencer tank 210, the open separation tank 220, and the separation tank 230 are inputted.
• the pump I 330 and the tank II 340 supply the transferred liquid to the lower surface of the separation tank 350.
• the present invention may be implemented using one skimming vessel. As shown in Figure 7, more preferably, the present invention may be implemented by widely deploying the suction unit using a plurality of small boats.
• the main pump 110 transfers sea water to the ejector 120, and in the ejector 120, the liquid flows at high speed for thereby generating a pressure drop therein, so that a suction force is generated therein.
• the thusly generated suction force is applied to the floating suction member 130 connected with the ejector 120 for thereby sucking the oil film spread on water and water.
• the floating suction unit 130 is floated on the water at a predetermined height by the buoy 131, and the linear suction nozzle 133 contacts with the oil film widely spread on water for thereby sucking the same.
• the mixed liquid of water and oil sucked by the suction unit 100 is introduced into the silencer tank 210 of the separation unit 200, passes over the partition plates 211, and is silenced. Therefore, water having a high specific gravity is gathered in the lower portion, and the oil having a relatively low specific gravity is gathered in the upper portion.
• the water-oil sensor 310 is attached to one lateral wall of the stabilizing tank 210, so that a signal of the sensor 310 which detects the thickness of the oil film is transferred to the controller 321 for thereby driving the pump I 330, and then the oil gathered in the upper portion is transferred to the separation tank 230.
• the water separated by the transfer tube 212 installed on a lower surface of the silencer tank 210 is upwardly splayed from the lower side of the open separation tank 220.
• the open separation tank 220 has opened holes in its lower portion, so that the water automatically flows to the lower portion of the vessel.
• the oil contained in water introduced into the open separation tank 220 is separated by the specific gravity difference and is gathered in the upper portion, and the pump II 340 is operated in accordance with a detection signal of the water-oil sensor 311 for thereby transferring the oil gathered in the upper portion to the separation tank 230.
• the lower surface of the separation tank 230 is closed, and the oil separated from the water is gathered by the pump III 350.
• valve 360 When the valve 360 is opened, the water gathered on the lower surface of the separation tank 230 is discharged based on the suction force of the pump 110. When the water level is decreased, the valve 360 is closed in accordance with an operation of the control panel 320 based on the detecting operation of the water-oil sensor 312.
• the controller 323 controls the operation of the pump III 350 in accordance with a signal from the water-oil sensor 312.
• a signal from the water-oil sensor 312. As described above, in the present invention, it is possible to skim oil widely spread on water using a floating type multiple aperture suction apparatus, and an open separation tank is capable of quickly separating oil and water for thereby increasing the work performance and positively coping with the increasing water pollution.

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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)
• Removal Of Floating Material (AREA)
• Cleaning Or Clearing Of The Surface Of Open Water (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=19522570

Family Applications (1)

Country Status (2)

Cited By (3)

Families Citing this family (11)

Citations (2)

• 1997
  • 1997-10-10 KR KR1019970052172A patent/KR100239829B1/ko not_active IP Right Cessation
• 1998
  • 1998-10-10 WO PCT/KR1998/000312 patent/WO1999019204A1/en unknown

Patent Citations (2)

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