CA2021968C - An installation for collecting oils and fuels spilled at sea - Google Patents
An installation for collecting oils and fuels spilled at sea Download PDFInfo
- Publication number
- CA2021968C CA2021968C CA002021968A CA2021968A CA2021968C CA 2021968 C CA2021968 C CA 2021968C CA 002021968 A CA002021968 A CA 002021968A CA 2021968 A CA2021968 A CA 2021968A CA 2021968 C CA2021968 C CA 2021968C
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- CA
- Canada
- Prior art keywords
- tank
- sea
- oil
- final
- float
- 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 - Fee Related
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Classifications
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- 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
Abstract
An installation for collecting oils and fuels spilled at sea comprises one or several platforms in semi-flotation, each of which has a funnel for the entry in cascade of surface water. Around it there are several buoys or floaters which can be adjusted, and which are fitted on the support strips and operated by a descending cable which links the traction of all the buoys at a junction. The cable runs along side a flexible duct to a first tank reaching its bottom where it runs on to a pulley. In the return sector, it is fixed to a surface float to determine by the level in the tank the position of the buoys and, therefore, the height of the platform. From this tank, a pipe runs out to a second tank which has a surface buoy with another outlet pipe to an elevation pump. From there, there is an upward pipe which overflows the mixture in a tank, out of the water. There is an outlet pipe fox the oil with a stop cock. A further bottom pipe returns the clean water to the sea.
Description
~~~~~~8 _ ,- _.
This invention relates to installations for collecting oil and fuel spilled at s~ea.
The irw ention is an installation which makes it possible, in optimal form and with a high rata of yield, to collect oils and fuels spilled at sea, such as crude oil and the like. This not only avoids the ecological disasters caused by the breakup or sinking of large oil--tankers, it also uses resources for recovering such fuels with minimum costs and so that, once recycled, they can be useful to 1.0 society. The installation makes use of a surface cascade or overflow system inside a set of semi-floating funnels fitted on a platform. They are operated by floating buoys so that a fine layer of oil-water flows on the surface of the funnels, of some two centimetres thickness. The system takes advantage of the fact that fuels float on the surface of the sea. Control of the flow of liquid in cascade form into the funnels is calculated and designated to be done intermittently so that, first, all the water of the layer taken in enters: should water enter continuously the oil would not. The entry of the water-oiI flow is automatically regulated so that, as the collecting tanks fill, less liquid enters, thereby improving ,performance. The final phase or process of the installation cansists of an elevation pump for the oil-water mix collected in the tanks, taking it up to the surface inside some tanks where the oil is separated from the water which has been mixed in the process.
This invention relates to installations for collecting oil and fuel spilled at s~ea.
The irw ention is an installation which makes it possible, in optimal form and with a high rata of yield, to collect oils and fuels spilled at sea, such as crude oil and the like. This not only avoids the ecological disasters caused by the breakup or sinking of large oil--tankers, it also uses resources for recovering such fuels with minimum costs and so that, once recycled, they can be useful to 1.0 society. The installation makes use of a surface cascade or overflow system inside a set of semi-floating funnels fitted on a platform. They are operated by floating buoys so that a fine layer of oil-water flows on the surface of the funnels, of some two centimetres thickness. The system takes advantage of the fact that fuels float on the surface of the sea. Control of the flow of liquid in cascade form into the funnels is calculated and designated to be done intermittently so that, first, all the water of the layer taken in enters: should water enter continuously the oil would not. The entry of the water-oiI flow is automatically regulated so that, as the collecting tanks fill, less liquid enters, thereby improving ,performance. The final phase or process of the installation cansists of an elevation pump for the oil-water mix collected in the tanks, taking it up to the surface inside some tanks where the oil is separated from the water which has been mixed in the process.
The technique currently used to collect energy products such as oil spilled at sea take in a variety of procedures. One involves the use of special boats which, as they move forward, collect the upper layer through gates. Also, there are other methods such as hoses for suction of the ~>roduct~ and other highly complex high technology systems. All are extremely expensive and of reduced productivity and profitability, nor do they significantly reduce t:he ecological damage caused. It has thus become necE:ssary to create a new method, of reduced cost and high yield in the collection of the product, with limited maintenance, and able to be easily placed at the centre of the oi.l spillage.
According t:o the invention, an installation for the collection of oils and fuels spilled at sea comprises an oil collecting :stage, a first tank and a second tank arranged in different levels below said oil collecting stage, a suction pump and a final tank for separation of oil from water; where_Ln the oil collecting stage comprises at least one platform having a plurality of supports which are equally spaced around the platform, at least one funnel to collects a m_~xture of the oil and water on the surface of the e~ea, the funnel being mounted approximately in the center of: the platform and having a first flexible pipe connected t:o the bottom of the funnel and to the top of the first tank; a plurality of pipes, each having one end secured to a respective one of the supports and a second end linked to t:he second ends of the remainder of said plurality of pipe's at a junction; a plurality of buoys to determine the: floatability level of the platform, the buoys being connected to retractable cables which go through said plurality of pipes and are linked to a descending cable: at the junction; wherein the first tank is submerged under the' sea and has a first float therein, a pulley fixed t;o the bottom of the first tank, and a second flexible pipe having an inlet secured to the first float and an outlet in the top of said second tank; and wherein the desc:endinc~ cable is guided along the first flexible pipe into thE~ first tank, guided under the pulley and fixed to the: bottom of the first float, such that the height of the p7_atforrn is controlled by the level of the first float.
The instal7_ation as claimed in claim 1, wherein the second tank is submerged more deeply than the first tank, and further comprising a second float inside said second tank and a third flexible pipe having an inlet secured to the second float: and <an outlet linked to the suction pump;
wherein the final tank floats on the sea and is connected to the suction pump b~~r means of an elevation pipe and wherein the first tanlc, the second tank and the suction pump are secured to a housing which is submerged and has surface buoys.
The instal7_ation as claimed in claim 2, wherein the elevation pipe coming out of the suction pump is connected to a top cover of the final tank and the final tank has a f final float thex-ein to which an inlet of a f final flexible pipe is connected such that the inlet of the final flexible pipe stays in a layer of the oil and only the oil is exhausted thx-ough a valve controlled outlet of the final flexible pipe into a container; and wherein the final tank is provided with an outlet pipe at the bottom thereof to exhaust wai:er to the sea.
The installation for the collection of oils and fuels spilled at sea, descr_Lbed herein, comprises one or more orifices on the surface of the sea so as to enable the entry by overflow or cascade of the product or the oil mixed with the water on the surface. The orifices take the form of funnels f_Ltted on platforms, with floats of a suitable height according to the wave-height, so that the product collected is taken through flexible piping to a tank submerged underwater and which is gradually filled.
This tank has an internal float which, according to the level of the co:Llected product, operates a cable which is connected to the' funny=1 platform buoys to ensure that it is at times undE~rwate:r and at others above the water level, thereby preveni~ing the tank from filling completely. Between i~he tank for the reception of the product and further bottom tank there is a flexible pipe link which makes it possible to once more collect the product close to the upper level, so enriching the energy product saved. Finalay, from this second tank, at the upper level of its contents, it is absorbed by a pump along a flexible pipe which lifts the liquid to a final tank, above the water level, where the oil is collected and the water reaturned to the sea.
For a better understanding of the general characteristics set out, drawings are attached which will show a graphic and di<~grammatic representation of a practical design for i~he installation for collection of oils and fuels spilled at sea.
In the drawings, Figure 1 is a side elevation partly in section of the complete instalJ_ation,, set up at sea and ready for use;
Figure 2 is a side elevation of one of the funnels through which the liquid falls by cascade, fitted on a platform which has several floats fitted around it on supports. The floats can be adjusted in height according to the volume of: liquid in the first collection tank. The funnel is partly submerged, so as to allow the product on the surface of t:he sea to enter;
Figure 3 is the same side elevational view as in Figure 2 but the' plats=orm is higher than the surface of the sea, when tree fir:~t tank is fuller;
Figure 4 i.~ a top plan view of one of the platforms with the funnel for the entry by cascade of the product deposited on the: surface of the sea, the platform having several adjustable floats spaced around it in such a way as to take any form and size;
According t:o the invention, an installation for the collection of oils and fuels spilled at sea comprises an oil collecting :stage, a first tank and a second tank arranged in different levels below said oil collecting stage, a suction pump and a final tank for separation of oil from water; where_Ln the oil collecting stage comprises at least one platform having a plurality of supports which are equally spaced around the platform, at least one funnel to collects a m_~xture of the oil and water on the surface of the e~ea, the funnel being mounted approximately in the center of: the platform and having a first flexible pipe connected t:o the bottom of the funnel and to the top of the first tank; a plurality of pipes, each having one end secured to a respective one of the supports and a second end linked to t:he second ends of the remainder of said plurality of pipe's at a junction; a plurality of buoys to determine the: floatability level of the platform, the buoys being connected to retractable cables which go through said plurality of pipes and are linked to a descending cable: at the junction; wherein the first tank is submerged under the' sea and has a first float therein, a pulley fixed t;o the bottom of the first tank, and a second flexible pipe having an inlet secured to the first float and an outlet in the top of said second tank; and wherein the desc:endinc~ cable is guided along the first flexible pipe into thE~ first tank, guided under the pulley and fixed to the: bottom of the first float, such that the height of the p7_atforrn is controlled by the level of the first float.
The instal7_ation as claimed in claim 1, wherein the second tank is submerged more deeply than the first tank, and further comprising a second float inside said second tank and a third flexible pipe having an inlet secured to the second float: and <an outlet linked to the suction pump;
wherein the final tank floats on the sea and is connected to the suction pump b~~r means of an elevation pipe and wherein the first tanlc, the second tank and the suction pump are secured to a housing which is submerged and has surface buoys.
The instal7_ation as claimed in claim 2, wherein the elevation pipe coming out of the suction pump is connected to a top cover of the final tank and the final tank has a f final float thex-ein to which an inlet of a f final flexible pipe is connected such that the inlet of the final flexible pipe stays in a layer of the oil and only the oil is exhausted thx-ough a valve controlled outlet of the final flexible pipe into a container; and wherein the final tank is provided with an outlet pipe at the bottom thereof to exhaust wai:er to the sea.
The installation for the collection of oils and fuels spilled at sea, descr_Lbed herein, comprises one or more orifices on the surface of the sea so as to enable the entry by overflow or cascade of the product or the oil mixed with the water on the surface. The orifices take the form of funnels f_Ltted on platforms, with floats of a suitable height according to the wave-height, so that the product collected is taken through flexible piping to a tank submerged underwater and which is gradually filled.
This tank has an internal float which, according to the level of the co:Llected product, operates a cable which is connected to the' funny=1 platform buoys to ensure that it is at times undE~rwate:r and at others above the water level, thereby preveni~ing the tank from filling completely. Between i~he tank for the reception of the product and further bottom tank there is a flexible pipe link which makes it possible to once more collect the product close to the upper level, so enriching the energy product saved. Finalay, from this second tank, at the upper level of its contents, it is absorbed by a pump along a flexible pipe which lifts the liquid to a final tank, above the water level, where the oil is collected and the water reaturned to the sea.
For a better understanding of the general characteristics set out, drawings are attached which will show a graphic and di<~grammatic representation of a practical design for i~he installation for collection of oils and fuels spilled at sea.
In the drawings, Figure 1 is a side elevation partly in section of the complete instalJ_ation,, set up at sea and ready for use;
Figure 2 is a side elevation of one of the funnels through which the liquid falls by cascade, fitted on a platform which has several floats fitted around it on supports. The floats can be adjusted in height according to the volume of: liquid in the first collection tank. The funnel is partly submerged, so as to allow the product on the surface of t:he sea to enter;
Figure 3 is the same side elevational view as in Figure 2 but the' plats=orm is higher than the surface of the sea, when tree fir:~t tank is fuller;
Figure 4 i.~ a top plan view of one of the platforms with the funnel for the entry by cascade of the product deposited on the: surface of the sea, the platform having several adjustable floats spaced around it in such a way as to take any form and size;
Figure 5 is a cross-sectional elevation of the final tank for the collection of the product, with the outlet pipes for the fuel, which is to be collected .in barrels and tanks, and for the water which is returned to the sea. The pipe for the oil is flexible and is secured to the level buoy for correct removal.
The semi-floating platform 1 has the opening of the funnel 2 in the central part, with a filter 3 to prevent the entry of impurities and foreign bodies which might damage lU the installation. At several points, equally spaced around its perimeter, support strips 4 are placed. At the end of these strips piping 5 is fixed. The piping acts as a guide for a cable 6 which has its outer end secured to a buoy 7 which can be adjusted in height. All the cables 6 of the buoys 7 are linked at junction 8 where they are all fixed to a descending cable 9. This cable 9 is guided by flanges 10 located alongside the funnel 2 and an input pipe 11 for the product collected. The product enters the funnel 2 in cascade form at the level corresponding to the surface of the sea which is where the product floats.
The piping 11, which is flexible, is introduced at the centre of the top of a tank 12 which is submerged. The tank 12 is fixed to a housing or structure 13 having buoys or floats 14. The liquid gathered spills into the interior of the tank 12, raising the liquid level plus an interior buoy 15 to which the end of the descending cable 9 is secured.
The semi-floating platform 1 has the opening of the funnel 2 in the central part, with a filter 3 to prevent the entry of impurities and foreign bodies which might damage lU the installation. At several points, equally spaced around its perimeter, support strips 4 are placed. At the end of these strips piping 5 is fixed. The piping acts as a guide for a cable 6 which has its outer end secured to a buoy 7 which can be adjusted in height. All the cables 6 of the buoys 7 are linked at junction 8 where they are all fixed to a descending cable 9. This cable 9 is guided by flanges 10 located alongside the funnel 2 and an input pipe 11 for the product collected. The product enters the funnel 2 in cascade form at the level corresponding to the surface of the sea which is where the product floats.
The piping 11, which is flexible, is introduced at the centre of the top of a tank 12 which is submerged. The tank 12 is fixed to a housing or structure 13 having buoys or floats 14. The liquid gathered spills into the interior of the tank 12, raising the liquid level plus an interior buoy 15 to which the end of the descending cable 9 is secured.
This cable runs around a pulley 16 secured in the bottom of the tank 12. This arrangement creates a traction effect on the cable 9 lowering i~he surface buoys 7 as the tank fills 12. Thus the platform 1 raises to prevent the product from entering in cascade until the level in the tank 12 drops once more taking the: platform down with it. When the platform comes down, this resumes the collection of the product from tike surface. These operations are fully automatic.
Inside the tank 12 and at a given height for the absorption of the oil. on the surface, there is a tube or flexible pipe 17 whose end is introduced into a tank 18 through the centre of its cover or top. The pipe 17 has an inlet secured to the float or buoy 15 and thus its inlet moves up or down with this float. The product is gathered from the first rank 12 and deposited in the second tank 18 for collection. The e~econd tank is fitted on the structure 13 at a greater depth than the tank 12 to allow the liquid to enter.
Inside the tank 7.8 at a suitable height to collect the largest possible amount of oil, there is a pipe 19 which runs to a suction pump 20. The pipe 19 inside the tank 18 is fixed to an internal buoy 21 and, therefore, the pipe 19 is in the liquid contained in this tank, so that the pump does not operate in vacuum. From the pump, an ascending pipe 22 emerges and this pipe places the water-oil mixture in a final tank 23 which is located above the surface of the sea and fitted with floats 24. Inside this tank 23 is the buoy or float 25 to which a flexible pipe 26 is fixed. This _ 7 _ pipe is located in the upper mass of oil and has an outlet 27 fitted with a tap or valve 28 to allow collection of the oil for use and storage in drums or tanks. In the bottom of the tank 23 there is a further outlet pipe 29 which allows the clean water 'to return to the sea.
Naturally, i~his installation could, for greater performance, have several platforms 1 with their associated funnels 2 for thc~ cascading drop of the water/oil, with feed pipes to the tanks 12 and 18 and collection in the tank 23 for use.
The tank 18 fitted on the structure 13 has a tap 30 with an ascending operating bar 31. This bar 31 is turned by outside flywheel 32 located above seal level. The tap 30 permits the structure :L3 to be submerged in the sea with the tanks 12 and 18 and the suction pump 20. Through the tap 30, sea water enters tlae tanks 12 and 18, avoiding air chambers which would make it more difficult to submerge.
Once the structure 13 is fully in position, the tap 30 is closed to begin the product collection operations.
The variables volume air chambers inside the tanks 12 and 18, depending on the amount of liquid collected, are linked together amd wii:h the outside, by piping 33 so that this air does not. create pressure or resistance at the level of the product collected.
Having thus fully described the parts making up the present installation for the collection of oils and fuels ~ _ spilled at sea, it should be Voted that its different parts can be made in a variety of materials, sizes and shapes, and variations may be rnade to the design. which practice makes advisable withoztt. departing from the spirit and scope of this invention.
Inside the tank 12 and at a given height for the absorption of the oil. on the surface, there is a tube or flexible pipe 17 whose end is introduced into a tank 18 through the centre of its cover or top. The pipe 17 has an inlet secured to the float or buoy 15 and thus its inlet moves up or down with this float. The product is gathered from the first rank 12 and deposited in the second tank 18 for collection. The e~econd tank is fitted on the structure 13 at a greater depth than the tank 12 to allow the liquid to enter.
Inside the tank 7.8 at a suitable height to collect the largest possible amount of oil, there is a pipe 19 which runs to a suction pump 20. The pipe 19 inside the tank 18 is fixed to an internal buoy 21 and, therefore, the pipe 19 is in the liquid contained in this tank, so that the pump does not operate in vacuum. From the pump, an ascending pipe 22 emerges and this pipe places the water-oil mixture in a final tank 23 which is located above the surface of the sea and fitted with floats 24. Inside this tank 23 is the buoy or float 25 to which a flexible pipe 26 is fixed. This _ 7 _ pipe is located in the upper mass of oil and has an outlet 27 fitted with a tap or valve 28 to allow collection of the oil for use and storage in drums or tanks. In the bottom of the tank 23 there is a further outlet pipe 29 which allows the clean water 'to return to the sea.
Naturally, i~his installation could, for greater performance, have several platforms 1 with their associated funnels 2 for thc~ cascading drop of the water/oil, with feed pipes to the tanks 12 and 18 and collection in the tank 23 for use.
The tank 18 fitted on the structure 13 has a tap 30 with an ascending operating bar 31. This bar 31 is turned by outside flywheel 32 located above seal level. The tap 30 permits the structure :L3 to be submerged in the sea with the tanks 12 and 18 and the suction pump 20. Through the tap 30, sea water enters tlae tanks 12 and 18, avoiding air chambers which would make it more difficult to submerge.
Once the structure 13 is fully in position, the tap 30 is closed to begin the product collection operations.
The variables volume air chambers inside the tanks 12 and 18, depending on the amount of liquid collected, are linked together amd wii:h the outside, by piping 33 so that this air does not. create pressure or resistance at the level of the product collected.
Having thus fully described the parts making up the present installation for the collection of oils and fuels ~ _ spilled at sea, it should be Voted that its different parts can be made in a variety of materials, sizes and shapes, and variations may be rnade to the design. which practice makes advisable withoztt. departing from the spirit and scope of this invention.
Claims (3)
1. An installation for collecting oil spilled on the sea comprising an oil collecting stage, a first tank and a second tank arranged in different levels below said oil collecting stage, a suction pump and a final tank for separation of oil from water; wherein the oil collecting stage comprises at least one platform having a plurality of supports which are equally spaced around the platform, at least one funnel to collect a mixture of the oil and water on the surface of the sea, the funnel being mounted approximately in the center of the platform and having a first flexible pipe connected to the bottom of the funnel and to the top of the first tank; a plurality of pipes, each having one end secured to a respective one of the supports and a second end linked to the second ends of the remainder of said plurality of pipes at a junction; a plurality of buoys to determine the floatability level of the platform, the buoys being connected to retractable cables which go through said plurality of pipes and are linked to a descending cable at the junction; wherein the first tank is submerged under the sea and has a first float therein, a pulley fixed to the bottom of the first tank, and a second flexible pipe having an inlet secured to the first float and an outlet in the top of said second tank; and wherein the descending cable is guided along the first flexible pipe into the first tank, guided under the pulley and fixed to the bottom of the first float, such that the height of the platform is controlled by the level of the first float.
2. The installation as claimed in claim 1, wherein the second tank is submerged more deeply than the first tank, and further comprising a second float inside said second tank and a third flexible pipe having an inlet secured to the second float and an outlet linked to the suction pump; wherein the final tank floats on the sea and is connected to the suction pump by means of an elevation pipe and wherein the first tank, the second tank and the suction pump are secured to a housing which is submerged and has surface buoys.
3. The installation as claimed in claim 2, wherein the elevation pipe coming out of the suction pump is connected to a top cover of the final tank and the final tank has a final float therein to which an inlet of a final flexible pipe is connected such that the inlet of the final flexible pipe stays in a layer of the oil and only the oil is exhausted through a valve controlled outlet of the final flexible pipe into a container; and wherein the final tank is provided with an outlet pipe at the bottom thereof to exhaust water to the sea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002021968A CA2021968C (en) | 1989-07-26 | 1990-07-25 | An installation for collecting oils and fuels spilled at sea |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES89.02636 | 1989-07-26 | ||
| ES8902636A ES2016710A6 (en) | 1989-07-26 | 1989-07-26 | Installation for collecting oils and fuels spilled at sea |
| CA002021968A CA2021968C (en) | 1989-07-26 | 1990-07-25 | An installation for collecting oils and fuels spilled at sea |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2021968A1 CA2021968A1 (en) | 1991-01-27 |
| CA2021968C true CA2021968C (en) | 2000-09-12 |
Family
ID=25674218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002021968A Expired - Fee Related CA2021968C (en) | 1989-07-26 | 1990-07-25 | An installation for collecting oils and fuels spilled at sea |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2021968C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3065435B1 (en) * | 2017-04-25 | 2020-01-17 | Smel Et Associes | NAVAL PLATFORM AND METHOD FOR COLLECTING UNDERWATER WASTE |
-
1990
- 1990-07-25 CA CA002021968A patent/CA2021968C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2021968A1 (en) | 1991-01-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |