EP1797244B1 - Regulator - Google Patents
Regulator Download PDFInfo
- Publication number
- EP1797244B1 EP1797244B1 EP05789123.6A EP05789123A EP1797244B1 EP 1797244 B1 EP1797244 B1 EP 1797244B1 EP 05789123 A EP05789123 A EP 05789123A EP 1797244 B1 EP1797244 B1 EP 1797244B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- regulator
- water
- float
- shutter member
- cylinders
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 58
- 230000000694 effects Effects 0.000 claims description 4
- 235000019198 oils Nutrition 0.000 description 13
- 239000002344 surface layer Substances 0.000 description 3
- 239000003305 oil spill Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPINGÂ
- B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
- B63B13/02—Ports for passing water through vessels' sides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPINGÂ
- B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
- B63B2013/005—Sea chests
Definitions
- the present invention relates to reducing level variations of water surface in conjunction with a water intake opening of oil collecting equipment and, particularly, to reducing the influence of waves that have on influence on the water intake opening of a floating vessel or device.
- GB publication 1 441 281 is a non-return valve whose curved shutter member disposed in a container is made of a floating material, and thus moves in dependence on the fluid level.
- this kind of structure is not functional, for example, to reduce the influence of waves.
- a float controlled shutter valve for oil skimming equipment is disclosed in GB 1 450 111 A .
- the invention utilizes a float that floats together with the water surface and regulates the shutter member by the effect of the level variations of water surface. This enables one to achieve a smooth stream of water from the water intake opening using relatively cost-effective and simple equipment.
- the float uses two parts arranged one upon the other at a distance from each other, the slit between them forming a flow path to the water intake opening.
- the float is arranged to be buoyant in such a depth that just the upper part thereof is partly above water level, a surface layer of certain thickness can be separated from the wavy water and introduced into the water intake opening.
- This kind of structure is very advantageous in conjunction with an oil collector because in practice, the oil to be collected is concentrated specifically in the surface layer.
- rotatable cylinders are used as parts of the float that are rotated in opposite directions so that the water that comes into contact with the cylinder surfaces flows though the opening between the cylinders toward the flow-through opening.
- Fig. 1 illustrates the first preferred embodiment of the regulator 1 of the invention.
- the regulator 1 is attached to an enclosure 2 that can be attached to the hull of a vessel.
- the water flows through the regulator into the enclosure 2 via the open front wall thereof, and further through an opening 3 in the enclosure 2 into the vessel via the water intake opening disposed in the hull of the vessel. Therefore, for example, during oil spill response, it is possible to supply the oil-water mixture floating on the water surface to the oil collector arranged inside the hull of the vessel.
- the regulator includes a float 4, which in the embodiments of the figures consists of two parts 5 and 6, which in this example both consist of cylinders.
- Each cylinder can be one-piece, or alternatively consist of several "discs" connected to one another.
- the cylinders 5 and 6 are arranged one upon the other along parallel axes.
- the horizontal axes of rotation of the cylinders are mounted with bearings 7 on the end pieces 8 arranged at the opposite ends of the cylinders.
- the end pieces 8 consist of plates that have been pivotally connected 9 to the enclosure 2. Due to the hinges 9, the cylinders 5 and 6 of the float 4 can move vertically with respect to the enclosure 2 as the water level varies. The cylinders 5 and 6 and the end plates 8 define between them a flow channel through which the water can flow into the enclosure 2 via the nearly wholly open front wall thereof and further from the enclosure via the opening 3 into the water intake opening of the vessel.
- the regulator 1 shown in Fig. 1 is designed to be used specifically for conveying water to the water intake opening of an oil collector mounted within the hull of a vessel.
- the float truly consists of two parts, whereby the float 4 can be so dimensioned that it is floating in a desired depth and "skims" a layer of certain thickness from the water surface to be conveyed to the water intake opening.
- the parts specifically consist of the cylinders 5 and 6 as shown in the figures, which can be rotated into opposite directions so that the water-oil mixture that comes into contact with them flows toward the water intake opening.
- the float solely moves the shutter member of the regulator 1 it is possible to use a one-piece float that also in this case can consist of a rotatable cylinder.
- Figs. 2 - 4 illustrate the regulator 1 of Fig. 1 in operation, whereby the enclosure 2 is shown sectioned.
- the figures show the operation of the regulator as the water level varies by the effect of waves so that in the situation of Fig. 2 , the regulator is disposed on a wave crest; in the situation of Fig. 3 in the middle depth; and in the situation of Fig. 4 on a wave trough.
- the float 4 has been so dimensioned that during use the lower cylinder 6 remains underneath the water surface and about a fourth of the upper cylinder 5 is disposed underneath the water surface.
- the water surface is depicted with a line 13.
- a shutter member 11 Connected to the end pieces 8 is also a shutter member 11 disposed between the upper cylinder 5 and the enclosure 2, consisting of a plate in this embodiment.
- the aforementioned shutter member 11 moves vertically together with the end pieces.
- the shutter member 11 In conjunction with the wave crest as shown in Fig. 2 , as well as in conjunction with the middle depth as shown in Fig. 3 , the shutter member 11 is disposed in such a place that from underneath thereof, between the cylinders 5 and 6, water can flow into the enclosure 2 via an opening 14 and further via the opening 3 into the water intake opening.
- the shutter member 11 In connection with the wave trough as shown in Fig. 4 , the shutter member 11 has, however, moved downward to such an extent that its lower edge has reached the wall 12 arranged in the lower edge of the opening 14 of the enclosure. In that case, the shutter member 11 and the front edge 12 together shut the flow path. In this manner, backflow from the enclosure is prevented.
- the shutter member should prevent at least this kind of backflow possibly occurring on the wave trough. Excessive stream of water on the wave crest can also impede the operation of the collector, but it is, however, not so harmful as the backflow. To provide a more uniform stream, it is preferable to manufacture the enclosure as shown in the figures so as to be as big as possible in capacity so that the amount of water will suffice also during that time when the shutter member 11 has shut the flow path to the water intake opening.
- the regulator 1 includes an engine or engines that are used to rotate the cylinders 5 and 6 into opposite directions during use. This has been illustrated by arrows in Figs. 2 - 4 . Thus, water flows via the opening defined in the vertical direction by the cylinders toward the opening 14 of the enclosure 2.
- the regulator 1 also includes scrapers 15 that are in contact with the surface of the cylinders, or at least very close to their surface, and thus due to the rotating movement of the cylinders, the scrapers remove the dirt that stuck to the surface of the cylinders.
- the regulator has been arranged in conjunction with a separate enclosure, from which water is introduced via the water intake opening of the vessel to the oil collecting equipment installed in the hull of the vessel.
- the regulator of the invention can also be utilized in other connections, for example, so that there is no separate enclosure; instead the regulator has been arranged directly in conjunction with the water intake opening.
- a water intake opening of a vessel or e.g. the water intake opening of a self-floating oil combating device can come into question.
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)
Description
- The present invention relates to reducing level variations of water surface in conjunction with a water intake opening of oil collecting equipment and, particularly, to reducing the influence of waves that have on influence on the water intake opening of a floating vessel or device.
- Known in prior art oil collecting equipments there are solutions in which oil mixed up with water is conveyed through the water intake opening of the vessel to the collecting equipment. The collecting equipment acts to separate the oil from the water, and thereafter the water is removed from the vessel through an outlet opening.
- In practice, the influence of waves, that is to say the level variations of water surface, has, however, proven problematic. In order that the amount of oil recovered by a collecting device would be as big as possible, the stream of water from the water intake opening to the collecting equipment should be as smooth as possible.
- Known from
GB publication 1 441 281 - Known in prior art from
GB publication 2 075 855 - Still, a float controlled shutter valve for oil skimming equipment is disclosed in
GB 1 450 111 A - It is an objective of this invention to solve the problem referred to above and to provide a regulator having as simple and reliable a structure as possible and enabling compensation of the level variations of water surface in conjunction with the water intake opening. This goal is achieved by the regulator as defined in
independent claim 1. - The invention utilizes a float that floats together with the water surface and regulates the shutter member by the effect of the level variations of water surface. This enables one to achieve a smooth stream of water from the water intake opening using relatively cost-effective and simple equipment.
- In the regulator of the invention, the float uses two parts arranged one upon the other at a distance from each other, the slit between them forming a flow path to the water intake opening. As in a structure like this, the float is arranged to be buoyant in such a depth that just the upper part thereof is partly above water level, a surface layer of certain thickness can be separated from the wavy water and introduced into the water intake opening. This kind of structure is very advantageous in conjunction with an oil collector because in practice, the oil to be collected is concentrated specifically in the surface layer.
- In one preferred embodiment of the regulator of the invention, rotatable cylinders are used as parts of the float that are rotated in opposite directions so that the water that comes into contact with the cylinder surfaces flows though the opening between the cylinders toward the flow-through opening. A solution of this kind makes the separation and recovery of the surface layer even more effective than before.
- Preferred embodiments of the regulator of the invention are apparent from attached dependent claims 2 - 9.
- In the following section, the invention will be described by way of example in greater detail with reference to the attached drawings, in which
-
Fig. 1 illustrates a first preferred embodiment of the regulator of the invention; and -
Figs. 1 - 4 illustrate the regulator ofFig. 1 in operation. -
Fig. 1 illustrates the first preferred embodiment of theregulator 1 of the invention. In the embodiment as shown inFig. 1 , theregulator 1 is attached to anenclosure 2 that can be attached to the hull of a vessel. In that case, the water flows through the regulator into theenclosure 2 via the open front wall thereof, and further through anopening 3 in theenclosure 2 into the vessel via the water intake opening disposed in the hull of the vessel. Therefore, for example, during oil spill response, it is possible to supply the oil-water mixture floating on the water surface to the oil collector arranged inside the hull of the vessel. - The regulator includes a
float 4, which in the embodiments of the figures consists of twoparts cylinders bearings 7 on theend pieces 8 arranged at the opposite ends of the cylinders. - In the embodiments of the figures, the
end pieces 8 consist of plates that have been pivotally connected 9 to theenclosure 2. Due to the hinges 9, thecylinders float 4 can move vertically with respect to theenclosure 2 as the water level varies. Thecylinders end plates 8 define between them a flow channel through which the water can flow into theenclosure 2 via the nearly wholly open front wall thereof and further from the enclosure via theopening 3 into the water intake opening of the vessel. - The
regulator 1 shown inFig. 1 is designed to be used specifically for conveying water to the water intake opening of an oil collector mounted within the hull of a vessel. In that case it is preferred that the float truly consists of two parts, whereby thefloat 4 can be so dimensioned that it is floating in a desired depth and "skims" a layer of certain thickness from the water surface to be conveyed to the water intake opening. In such an application, it is also preferred that the parts specifically consist of thecylinders regulator 1 it is possible to use a one-piece float that also in this case can consist of a rotatable cylinder. -
Figs. 2 - 4 illustrate theregulator 1 ofFig. 1 in operation, whereby theenclosure 2 is shown sectioned. The figures show the operation of the regulator as the water level varies by the effect of waves so that in the situation ofFig. 2 , the regulator is disposed on a wave crest; in the situation ofFig. 3 in the middle depth; and in the situation ofFig. 4 on a wave trough. - The
float 4 has been so dimensioned that during use thelower cylinder 6 remains underneath the water surface and about a fourth of theupper cylinder 5 is disposed underneath the water surface. InFigs. 3 - 5 , the water surface is depicted with aline 13. By the effect of waves, the water level varies, whereby thefloat 4 moves vertically. This is made possible by the hinges 9 between theend pieces 8 and theenclosure 2, about which hinges the end pieces turn together with thefloat 4. - Connected to the
end pieces 8 is also ashutter member 11 disposed between theupper cylinder 5 and theenclosure 2, consisting of a plate in this embodiment. Theaforementioned shutter member 11 moves vertically together with the end pieces. In conjunction with the wave crest as shown inFig. 2 , as well as in conjunction with the middle depth as shown inFig. 3 , theshutter member 11 is disposed in such a place that from underneath thereof, between thecylinders enclosure 2 via anopening 14 and further via theopening 3 into the water intake opening. In connection with the wave trough as shown inFig. 4 , theshutter member 11 has, however, moved downward to such an extent that its lower edge has reached thewall 12 arranged in the lower edge of theopening 14 of the enclosure. In that case, theshutter member 11 and thefront edge 12 together shut the flow path. In this manner, backflow from the enclosure is prevented. - In conjunction with oil spill response it is especially important that the backflow from the water intake opening is prevented. Thus, the shutter member should prevent at least this kind of backflow possibly occurring on the wave trough. Excessive stream of water on the wave crest can also impede the operation of the collector, but it is, however, not so harmful as the backflow. To provide a more uniform stream, it is preferable to manufacture the enclosure as shown in the figures so as to be as big as possible in capacity so that the amount of water will suffice also during that time when the
shutter member 11 has shut the flow path to the water intake opening. - The
regulator 1 includes an engine or engines that are used to rotate thecylinders Figs. 2 - 4 . Thus, water flows via the opening defined in the vertical direction by the cylinders toward theopening 14 of theenclosure 2. Theregulator 1 also includesscrapers 15 that are in contact with the surface of the cylinders, or at least very close to their surface, and thus due to the rotating movement of the cylinders, the scrapers remove the dirt that stuck to the surface of the cylinders. - In the above figures one has by way of example supposed that the regulator has been arranged in conjunction with a separate enclosure, from which water is introduced via the water intake opening of the vessel to the oil collecting equipment installed in the hull of the vessel. However, the regulator of the invention can also be utilized in other connections, for example, so that there is no separate enclosure; instead the regulator has been arranged directly in conjunction with the water intake opening. In that case, a water intake opening of a vessel or e.g. the water intake opening of a self-floating oil combating device can come into question.
- It must be understood that the above description and the figures relating to it are only intended to illustrate the present invention. Various variations and modifications of the invention will be apparent to a person skilled in the art without departing from the scope of the invention said down by appended claims.
Claims (6)
- Regulator for compensating the level variations of water surface in conjunction with a water intake opening (of an oil collecting equipment), the regulator comprising:a shutter member (11) to be moved vertically, which can be moved between the open and the closed position, whereby while in the open position, the shutter member (11) opens a flow path to enable stream of water, and while in the closed position, the shutter member closes the flow path,a float (4) connected to the shutter member (11), which float (4) has been arranged before the shutter member (11) in the flow direction and dimensioned to float in a predetermined depth, and which as the water level (13) sinks, moves the shutter member (11) toward the closed position,characterized in that the float (4) includes two parts (5, 6) arranged one upon the other at a distance from each other, the slit between them forming the flow path to the water intake opening of the oil collecting equipment.
- Regulator as defined in claim 1 characterized in that the float (4) includes at least one cylinder (5) arranged to be rotatable about a horizontal axis, the at least one zylinder (5) forming one of the parts (5, 6).
- Regulator as defined in claim 1 or 2, characterized in that the float includes two cylinders (5, 6) arranged one upon the other to be rotatable about parallel and horizontal axes, the slit between them forming the flow path to the water intake opening, the two cylinders (5, 6) forming the two parts (5, 6).
- Regulator as defined in claim 3, characterized in that the regulator includes means for rotating the aforementioned cylinders (5, 6) into opposite directions so that the water that comes into contact with the surfaces of the cylinders (5, 6) flows toward the flow-trough opening.
- Regulator as defined in any one of claims 2 - 4 characterized in that arranged at opposite ends of the cylinder (5) or cylinders (5, 6) are end pieces (8), to which the cylinder axes have been pivoted (7), and that the aforementioned end pieces (8) have been pivoted (9) to enable movement of the end pieces (8), each cylinder (5, 6) and the shutter member (11) in a vertical direction by the effect of level variations of water surface (13).
- Regulator as defined in any one of claims 2 - 5, characterized in that arranged in conjunction with each cylinder (5, 6) is a scraper (15) for wiping the cylinder surface.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20045346A FI116801B (en) | 2004-09-17 | 2004-09-17 | Regulator |
PCT/FI2005/000393 WO2006030063A1 (en) | 2004-09-17 | 2005-09-16 | Regulator |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1797244A1 EP1797244A1 (en) | 2007-06-20 |
EP1797244A4 EP1797244A4 (en) | 2012-08-22 |
EP1797244B1 true EP1797244B1 (en) | 2013-08-21 |
Family
ID=33041624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05789123.6A Active EP1797244B1 (en) | 2004-09-17 | 2005-09-16 | Regulator |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1797244B1 (en) |
DK (1) | DK1797244T3 (en) |
FI (1) | FI116801B (en) |
WO (1) | WO2006030063A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012010175A1 (en) * | 2010-07-20 | 2012-01-26 | Erik Ladefoged | Method and vessel for collection of oil from the sea |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3682316A (en) * | 1970-03-03 | 1972-08-08 | Frank Arthur Oakley Waren | Apparatus for the collection of buoyant foreign matter |
US3693801A (en) * | 1971-06-25 | 1972-09-26 | Texaco Inc | Water surface skimmer with check valve |
IT998603B (en) * | 1972-09-25 | 1976-02-20 | Rafael J | DEVICE FOR THE ATTENUATION OF THE WAVE MOTION OF WATER WAVES IN PARTICULAR FOR A FLOATING BODY FOR THE PURIFICATION OF POLLUTED WATER |
DE2246958C3 (en) * | 1972-09-25 | 1975-05-28 | Johann Dipl.-Ing. Dr.H.C. Salzburg Rafael (Oesterreich) | Device for purifying water contaminated with oil |
US3862902A (en) * | 1973-06-06 | 1975-01-28 | Abram Yakovlevich Derzhavets | Device for receiving water surface floating impurities |
US3923661A (en) * | 1974-06-28 | 1975-12-02 | Angelo J Crisafulli | Oil skimmer with lead float and hinged weir |
GB2075855B (en) * | 1980-05-21 | 1984-05-16 | Byers Edward Victor | Skimming device |
US6261451B1 (en) * | 1999-03-22 | 2001-07-17 | Louis Genevrino | Oil slick removal/recovery apparatus |
FR2804140A1 (en) * | 2000-01-25 | 2001-07-27 | Michel Emile Marcel Lelandais | Device for removing oil, etc from sea water, etc includes partially immersed rotatable volume of circular cross section entraining oil and discharging it into air |
FR2819278B1 (en) * | 2001-01-10 | 2004-01-30 | Jean Pierre Corominas | VALVE RELEASER |
-
2004
- 2004-09-17 FI FI20045346A patent/FI116801B/en not_active IP Right Cessation
-
2005
- 2005-09-16 EP EP05789123.6A patent/EP1797244B1/en active Active
- 2005-09-16 DK DK05789123.6T patent/DK1797244T3/en active
- 2005-09-16 WO PCT/FI2005/000393 patent/WO2006030063A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2006030063A1 (en) | 2006-03-23 |
EP1797244A1 (en) | 2007-06-20 |
FI116801B (en) | 2006-02-28 |
DK1797244T3 (en) | 2013-10-28 |
EP1797244A4 (en) | 2012-08-22 |
FI20045346A0 (en) | 2004-09-17 |
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