WO2021250270A1 - Device for moving a floating or submerged element - Google Patents

Abstract

A device (1) for removing an element (E) that is floating or submerged in water, to a capture zone (ZC) using a curtain of air bubbles (8), the device (1) comprising an air compressor (3) that supplies compressed air to at least one perforated tube (4) that is provided with a single row of perforations (7), in which the perforations (7) of the tube and the perforated tube (4) are arranged in the water so as to generate a curtain of air bubbles (8) using the compressed air that escapes through the perforations (7) towards the surface of the water (13), so as to bring about a movement of the floating element (E) towards the capture zone (ZC).

Description

Device for moving a floating or submerged element

Field of the invention

The present invention relates to a device for moving a floating or submerged element towards a collection zone. State of the art

It is known to have bodies of water that are static, such as a lake or a pond, or dynamic, such as a channel or a river, polluted by various elements floating or submerged between two waters. These elements can be wastes that have ended up on the body of water or items, which are not waste, intentionally or unintentionally on the body of water.

It is therefore necessary to find a way to clean up these expanses of water which are polluted.

To clean up these bodies of water, it is known, in the case of dynamic bodies of water, to cause floating elements to converge between two arms made up of buoys forming a funnel in the direction of a catchment area. The two arms are oriented in such a way that the arms approach each other in the direction of the current. The elements are carried by the current of the sea or the river allowing the movement of floating objects. The sanitation device is therefore dependent on the current of the body of water and does not allow the collection of elements which have been carried outside the arms forming the funnel.

It is common for a person to have to collect unwanted items floating on the pontoons of a port on a daily basis. To overcome this need for daily collection, the Seabin ^® device allows collection of elements floating near the device, by creating a vacuum and sucking the elements into a storage medium. This device has the advantage of not being dependent on current and of being able to operate continuously. However, such a device does not make it possible to clean up large expanses of water.

There are also recent projects using boats or robotic collection devices to collect the elements that pollute large bodies of water. such as the oceans. These boats or robotic collection devices make it possible to collect submerged or floating elements over a large body of water. However, collection cannot take place continuously. In addition, the number of these devices is limited and is not suitable for any type of body of water. It is therefore necessary to find a way to collect these floating or submerged elements which is independent of the natural current of a dynamic body of water (such as the current of a river or a river, or the tide) and, which allows these elements to be collected over an area that can be significant while being able to easily adapt to the configuration of the body of water. Description of the invention

The present invention aims to provide a device for moving an element floating or submerged in water towards a collection zone using a curtain of air bubbles, the device comprising an air compressor supplying air. compressed air at least one perforated tube provided with a single row of perforations, in which the perforations of the tube and the perforated tube are arranged in the water so as to generate a curtain of air bubbles through the air compressed escaping from the perforations towards the surface of the water, so as to generate a displacement of the floating element towards the capture zone.

In each of the embodiments mentioned, the compressor can be replaced by any machine or apparatus for providing an air supply, such as a booster or a turbine.

In one embodiment, another type of liquid than water can be considered.

Advantageously, this displacement device allows floating or submerged elements to converge towards a collection zone without requiring the natural current of a river or a tide. The device operation is autonomous and requires human intervention only for the activation of the device.

Advantageously, the activation cycles of the device can be programmed. In addition, such a system has the advantage of not being invasive with respect to the ecosystem of the body of water. Such a device also has the advantage of not being invasive for the movement of devices, such as boats on the water.

Advantageously, the device according to the invention is adaptable to any type of body of water by adapting the size and / or the number of perforated tubes used, the power and the flow rate of the air, compressed or uncompressed, supplied by the compressor or any machine or device for providing an air supply. It is understood that for the remainder of the description, the term “body of water” refers to a static or dynamic body of water.

Preferably, the displacement device can also include one or more of the characteristics below, considered individually or according to any technically possible combination: the device comprises at least two perforated tubes arranged successively along an axis directed towards the capture zone, and a microcontroller configured to manage the supply of air to the at least two perforated tubes so that the at least two tubes are supplied successively; and / or the at least one perforated tube is made of rot-proof material, preferably metal or plastic, more preferably stainless steel or aluminum; and / or the at least one perforated tube comprises at least one portion provided with perforations, the perforations within the portion are spaced, in the longitudinal direction of said tube, by a distance of between 1 cm and 33 cm, preferably every 4 cm; and / or the at least one perforated tube comprises at least one portion provided with perforations, the perforations within the portion are spaced, in the longitudinal direction of said tube, by a distance of between 5 cm and 25 cm, preferably of a distance between 10 and 20cm, more preferably a distance between 13 and 16cm, more preferably every 14 cm; and or the perforations comprise a diameter of between 0.5 mm and 4 mm, more preferably between 1 mm and 3 mm, and even more preferably of the order of 2 mm; and / or the perforations, preferably circular, have an area of between 0.19 mm ² and 7 mm ² , and preferably a diameter of 0.78 mm ² or 3.14 mm ² ; and / or the device comprises at least two perforated tubes connected to a common part formed by a tube, the common part is configured to communicate fluidly with each of the at least two tubes and allow their supply of compressed air; and / or the device comprises a common part, in the form of a tube, and a network of perforated tubes formed by N pairs of perforated tubes, successively arranged along an axis directed towards the capture zone, the device comprises a configured microcontroller to regulate the compressed air supply to the N pairs of perforated tubes,

N is a positive integer greater than 1, and i is a positive integer such that l £ i £ N,

The first pair of perforated tubes is the pair of perforated tubes furthest from the capture zone, and the “N th” pair of perforated tubes is the pair of perforated tubes closest to the capture zone, the “i th” »Pair of perforated tube comprises a first tube and a second tube connected by an elbow connection forming an angle α, the common part opens at a level with a through opening of the elbow connection of each of the pairs of perforated tubes, each of the through openings is configured to provide fluid communication between the compressor and each of the pairs of perforated tubes to supply the first and second tubes of each pair with compressed air, and each of the through openings is configured to be sealed, or opened, and allow supply a perforated compressed air tube; and or the device comprises a common part, in the form of a tube, and a network of perforated tubes formed by N pairs of perforated tubes, arranged successively along an axis directed towards the capture zone, the device comprises a microcontroller configured to regulate the '' compressed air supply to the N pairs of perforated tubes,

N is a positive integer greater than 2, i is a positive integer such that l £ i £ Nl, the first pair of perforated tubes is the pair of perforated tubes furthest from the capture zone, and the “N th "Pair of perforated tubes is the pair of perforated tubes closest to the capture zone, the" N th "pair of perforated tubes comprises a first tube and a second tube connected by an elbow connection forming an angle aN, each" i th 'pair of perforated tubes comprises a first tube and a second coaxial tube connected by a tee connection, so as to be aligned, and the first tube and the second tube are arranged perpendicular to the common part, the part perpendicular to the connection in tee is connected to the common part, the common part opens out at the level of a through opening of the elbow or tee connection of each of the pairs of perforated tubes, each of the through openings is configured to ensure fluid communication between the compressor and each of the pairs of perforated tubes to supply the first and the second tubes of each pair with compressed air, and each of the through openings is configured to be closed, or open and allow the supply of a perforated tube with compressed air ; and / or the device comprises a common part, in the form of a tube, and a network of perforated tubes formed by N pairs of perforated tubes, successively arranged along an axis directed towards the capture zone, the device comprises a configured microcontroller to regulate the compressed air supply to the N perforated tubes,

N is a positive integer greater than 3, i is a positive integer such that Nl £ i £ N, and j is a positive integer such that l £ j <Nl, the first pair of perforated tubes is the pair of perforated tubes furthest from the capture zone, and the “N th” pair of perforated tubes is the pair of perforated tubes closest to the capture zone, each “i th” "Pair of perforated tubes comprises a first tube and a second tube connected by an elbow connection forming an angle a, each" j th "pair of perforated tubes comprises a first tube and a second coaxial tube connected by a tee connection, so as to be aligned, and the first tube and the second tube are arranged perpendicular to the common part, the perpendicular part of the tee connection is connected to the common part, the common part opens out at a through opening of the elbow connection or at the tee of each of the pairs of perforated tubes, each of the through openings is configured to provide fluid communication between the compressor and each of the pairs of perforated tubes to supply the first and the dry ond tubes of each pair of compressed air, and each of the through openings is configured to be closed, or open and allow the supply of a perforated tube with compressed air; and / or the first tube and the second tube of each of the pairs of tubes comprising an elbow connection form an angle of between 30 ° and 60 °, preferably between 40 ° and 50, and even more preferably of 45 °; and / or each of the “j th” pair of tubes being spaced by a distance of between 1 to 8 m, more preferably 2 to 6 m, even more preferably 3 m; and / or the pair of N-2 tubes, formed by a first tube and a second aligned tube, the pair of N-2 tubes includes an opposing first lateral end and a second end, the pair of N1 tubes, formed a first tube and a second tube connected by an elbow link, the pair of N-2 tubes includes a first side end and an opposite second end, the first side end of the pair of N-2 tubes faces each other and spaced 3 m from the first side end of the pair of N1 tubes, and the second side end of the pair of tubes N-2 is opposite and spaced at a distance of 3 m from the second lateral end of the pair of N1 tubes; and / or the elbow connection of the “Nth” pair of tubes is spaced 3m from the elbow connection of the “Nth” pair of tubes; and / or a valve is arranged upstream of each of the through openings, each of said valve is configured to close the through opening or allow the supply of compressed air to the elbow connection; and / or at least one connection zone between the common part and a pair of perforated tubes comprises a mechanical reinforcement structure, the mechanical reinforcement structure is formed by four profiles, the third profile being fixed on the one hand on an upper face of the first section and on the other hand on an upper face of the second section, the fourth section being fixed on the one hand on the upper face of the first section and on the other hand on the upper face of the second section, the first section comprises a circular opening corresponding to the outside diameter of the first tube of the pair of tubes passing through the first profile, the second profile comprises a circular opening corresponding to the outside diameter of the second tube of the pair of tubes passing through the second profile, and the third and fourth profiles respectively comprise a circular opening, corresponding to the diameter of the common part passing through the third and fourth sections; and / or each of the sections comprises a first and a second opposite ends, the third section being fixed, at its first end, on the upper face of the first section at the level of the first end, and being fixed, at its second end, on the upper face of the second section at the level of the first end, the fourth section being fixed, at its first end, on the upper face of the first section at the level of the second end, and being fixed, at its second end end, on the upper face of the second section at the second end; and / or the first and the second profiles are parallel; and / or the third and the fourth sections are parallel; and / or the opening of the first section and the opening of the second are aligned for pairs of tubes comprising a first and a second tube linked by a tee connection; and / or the opening of the first section and the opening of the second are formed at their respective second ends for the pairs of tubes comprising a first and a second tube linked by an elbow connection; and / or the opening of the third section and the opening of the fourth are aligned; and / or at least one mechanical reinforcement structure comprises a ballast fixed to the upper faces of the third section and of the fourth section; and / or each mechanical reinforcement structure comprises a ballast fixed to the upper faces of the third and fourth sections; and / or the device comprises a common part, preferably in the form of a tube, and N pairs of perforated tubes, arranged successively along an axis directed towards the capture zone, a pair of perforated tubes is defined by a first tube comprising : o a first part extending longitudinally, along a first longitudinal axis perpendicular to the longitudinal direction of the common part, o a second part extending longitudinally along a second longitudinal axis, the first and second longitudinal axes being intersecting, and o an elbow connection fluidly connecting the first and the second part of the tube, the elbow connection forms an angle al between the first and second longitudinal axes, and a second tube comprising: a first part extending longitudinally, along the first longitudinal axis perpendicularly to the common part, aligned with the first part of the first tube o a second part extending longitudinally along a second longitudinal axis, the first and second longitudinal axes being intersecting, and o an elbow connection fluidly connecting the first and the second part of the tube, the elbow connection forming an angle a.2 between the first and second longitudinal axes,

N is a positive integer greater than 1, and i is a positive integer such as l £ i £ N, the "th" pair of tubes comprises a first tube having an elbow connection forming an angle ali and a second tube having an elbow connection forming an angle a2i, the common part opens into at least one through opening of each first and second perforated tubes of a pair so as to communicate fluidly and supply the first and the second tubes of the pair with compressed air, only the common part is directly connected to the compressed air compressor, and each of the through openings is configured to be closed, or open and allow the supply of a perforated tube with compressed air, preferably the openings of a pair of tubes are configured so that the first and second tubes are supplied or not supplied with compressed air simultaneously; and / or the angle a1 and a2i are greater than or equal to 90 ° and strictly less than 180 °, preferably greater than or equal to 90 ° and less than or equal to 135 °; and / or the first tubes, respectively the second tubes, of each of the N pairs of perforated tubes are substantially parallel to each other; and / or each of the first and second tubes of each of the N pairs are respectively symmetrical along an axis extending in the direction of elongation of at least a portion of the common part; and / or the common part is configured to extend in the direction of the capture zone, preferably in a direction perpendicular to a capture means located in the capture zone. The invention also relates to a method of moving at least one element submerged or floating on a body of water, using an element movement device according to the invention, comprising: a first step of supply, during which a compressor supplies compressed air to a perforated tube with compressed air for a first given period of time, the compressed air escaping from the perforations of the perforated tube generates a first curtain of air bubbles which displaces at least one submerged or floating element over a first displacement distance in the direction of a capture zone.

Preferably, the method can also include one or more of the characteristics below, considered individually or according to all the technically possible combinations: a second perforated tube connected to the compressor, a first supply stopping step, during which the second perforated tube has no compressed air supply, a second supply step, during which the compressor supplies compressed air to the second perforated tube with compressed air during a second given period of time, the compressed air escaping from the second perforated tube generates a second curtain of air bubbles which moves the at least one submerged or floating element over a second displacement distance in the direction of the capture zone, a second supply stopping step, during which the perforated tube, supplied during the first feeding step, is devoid of compressed air supply, the first and second travel distances are substantially equal, the first feeding stage and the first feeding stopping stage occur simultaneously during the first given period of time, the second feeding stage and the second feeding stopping stage occur simultaneously during the second given period of time, the first feeding and stopping feeding stage taking place before the second feeding stage and the second stopping feeding stage, the perforated tube being fed in the first stage of 'supply and the second perforated tube being arranged successively along an axis directed towards the capture zone, and the tube supplied during the first supply step is arranged more distant from the capture zone than the second tube; and / or the first given time period and the second given time period are identical time periods; and / or in which the first given time period and the second given time period are between 1 s and 60 s, preferably between 4 s and 30 s; in which the first given time period and the second given time period are between 1 s and 100 s, preferably between 30 s and 90 s; and / or a network of tubes comprises N perforated tubes, or N pairs of perforated tubes, a cycle is defined such that each of the tubes or each of the pairs of tubes of the network is supplied individually, successively and after stopping the l 'feeding of another tube or of a pair of tubes, the two tubes or the two pairs of tubes fed successively are arranged side by side in the direction of the capture zone, the power cycle is reproduced periodically, each of the tubes or pairs of tubes is fed only once during a power cycle, and the tube or pair of tubes being arranged furthest from the capture zone is fed first, the tubes or pairs of tubes arranged successively along an axis directed towards the collection zone are successively fed until the tube or the pair of tubes closest to the collection zone is fed, and the first and the second tubes of a pair of tubes are simultaneously al iment or simultaneously without compressed air supply. Brief description of the figures

The invention will be better understood in the light of the following description which is given only as an indication and which is not intended to limit said invention, accompanied by the figures below:

• Figure la is a schematic representation of the device installed in a body of water according to a first embodiment of the invention according to a first configuration,

• Figure lb is a schematic representation of the device installed in a body of water according to a first embodiment of the invention according to a second configuration,

• Figure 1c is a schematic representation of the device installed in a body of water according to a first embodiment of the invention according to a third configuration,

• Figure ld is a schematic representation of the device installed in a body of water according to a first embodiment of the invention according to a fourth configuration,

• Figure 2 is a sectional view illustrating the submerged tube and the bubble curtain formed,

• Figure 3a is a schematic representation of the device installed in a body of water according to a second embodiment of the invention according to a first configuration,

• Figure 3b is a sectional view, along the plane A-A, illustrating the device according to the second embodiment,

• Figure 3c is a schematic representation of the device installed in a body of water according to a second embodiment of the invention according to a second configuration,

• Figure 3d is a schematic representation of the device installed in a body of water according to a second embodiment of the invention according to a third configuration,

• Figure 3e is a schematic representation of the device installed in a body of water according to a second embodiment of the invention according to a fourth configuration,

RECTIFIED SHEET (RULE 91) ISA / EP • Figure 3f is a schematic representation of the device installed in a body of water according to a second embodiment of the invention according to a fifth configuration,

• Figure 4a is a schematic representation of the device installed in a body of water according to a third embodiment of the invention according to a first configuration,

• Figure 4b is a schematic representation of the device installed in a body of water according to a third embodiment of the invention according to a second configuration,

• Figure 5 is a schematic representation of the device installed in a body of water according to a fourth embodiment of the invention,

• Figure 6a is a representation of a mechanical reinforcement structure at the level of a connection between the common part and a pair of coaxial perforated tubes,

• Figure 6b is a representation of a mechanical reinforcement structure at the level of a connection between the common part and a pair of perforated tubes connected by an elbow connection, and

• Figure 6c is a representation of a ballast mounted on the mechanical reinforcement structure.

In the various figures, similar elements are designated by identical references. In addition, the various elements are not necessarily shown to scale in order to present a view making it easier to understand the invention.

detailed description

For the understanding of the invention described below, the term “upstream” refers to a first tube or a pair of tubes located closer to the capture zone than a second tube or a second pair of tubes which will be. considered to be “downstream”. Thus, a zone upstream of a tube is located between said tube and the capture zone.

Figure la illustrates a device 1 comprising an air compressor 3 and a perforated tube 4 immersed in the body of water 2. The perforated tube 4 is connected to the air compressor so that it can be supplied with compressed air by the compressor. air 3. Air supply

RECTIFIED SHEET (RULE 91) ISA / EP compressed is regulated by a microcontroller 5. The microcontroller 5 makes it possible to define a period of time when the tube 4 is supplied with compressed air and a period of time when the tube 4 has no compressed air supply.

The perforated tube 4 comprises a portion 6 provided with perforations 7. When the tube is supplied with compressed air, the air escapes through the perforations 7 and forms a curtain of air bubbles 8 (see FIG. 2). The curtain of air bubbles extends substantially vertically from the perforations 7. The movement of the air bubbles from the curtain of air bubbles 8 towards the water surface of the water body 2 generates a wave of displacement of the water at the level of the arrival at the surface of the air bubbles. The displacement wave at the surface of the water allows a displacement of the floating or submerged elements E in the direction of the capture zone ZC.

In a particular embodiment, the portion 6 is rectilinear and extends parallel to an edge of the capture zone ZC, preferably parallel to a collection end of a collector.

In another particular embodiment, illustrated in FIG. 1b, the portion 6 has a curved profile forming an at least partially encircled zone. This partially surrounded area includes the catchment area. The curtain of air bubbles 8 generated by this portion 6 with the curved profile allows the elements E to converge towards the capture zone ZC in different directions.

In another particular embodiment, illustrated in FIG. 1c, the portion 6 has a first part 9 and a second rectilinear part 10 connected by an elbow connection 11. The first part 9 extends parallel to an edge of the capture zone. ZC, preferably parallel to a collection end of a collector. The second part 10 extends towards an edge of the body of water where the capture zone ZC is located. The angle a formed by the bent connection 11 is greater than or equal to 90 ° and strictly less than 180 °, preferably this angle is greater than or equal to 90 ° and less than or equal to 135 °.

The first part 9 makes it possible to move the elements E in the direction of the capture zone ZC and the second part 10 makes it possible to move the elements E in the direction of a zone ZA upstream of the first part 9. Once the elements E have been moved upstream of the first part 9, these elements are moved in the direction of the capture zone ZC using waves generated by the curtain of air bubbles 8 formed by the compressed air escaping from the perforations 7 of the first part 9.

In another particular embodiment, illustrated in FIG. 1d, the perforated tube 4 comprises a portion 6 provided with perforations 7 and a portion 15 without perforation. The portion 15 extends towards an edge of the capture zone ZC. The portion 6 is linked to the portion 15 by an elbow link 16. The portion 6 and the portion 15 form, at the level of the elbow link 16, an angle of 20 ° and 70 °, preferably between 30 ° and 60 °, more preferably between 30 ° and 50 °, and even more preferably of the order of 45 °.

Advantageously, the configurations shown in Figures 1b to 1d allow the elements E to converge towards the capture zone ZC.

Advantageously, the perforated tube 4 can be in a rot-proof material. Preferably, the perforated tube 4 can be made of metal or plastic, even more preferably, the perforated tube can be made of stainless steel or aluminum. The advantage of a perforated steel tube 4 is that it is not necessary to use a ballast so that the perforated tube remains well at the bottom of the body of water and does not rise to the surface.

According to a particular embodiment, the perforations 7 open out in the direction of the capture zone ZC at an angle greater than or equal to 10 ° and less than or equal to 60 ° with respect to a vertical plane, preferably greater than or equal to 20 ° and less than or equal to 50 °, and even more preferably greater than or equal to 30 ° and less than or equal to 40 ° with respect to a plane perpendicular to the surface of the water

According to a particular embodiment, the perforations 7 are aligned in the form of a single row extending in the direction of elongation of the portion of the tube 6. Preferably, the perforations are spaced apart by a distance of between 1 and 33. cm. More preferably, the perforations are spaced at a distance of 4 cm.

The perforations can be circular and have a diameter between 0.1 and

3mm.

Preferably, the perforations have an area of between 0.19 mm ² and 7 mm ² , and preferably a diameter of 0.78 mm ² . Figure 2 is a sectional view of the portion 6 of the curtain of the perforated tube 4 and the compressed air escaping at a perforation 7 so as to form a curtain of air bubbles 8. The movement of air bubbles 12 from the curtain of air bubbles 8 to the surface of the water 13 of the water body 2 generates a displacement wave 14 (shown as two arrows) of the water at the level of the 'arrival at the surface of the water 13 of the air bubbles.

The displacement wave 13 makes it possible to move a floating or submerged element E over a distance of up to 8 m depending on the flow rate and the pressure of the compressed air supplied to the perforated tube 4 by the compressor 3.

FIG. 3a is a schematic representation of a device 101 for moving, in an X direction, an element E floating or submerged in a body of water 2 according to a second embodiment. The device according to the second embodiment comprises two perforated tubes 4 immersed in the body of water. The device 101 comprises a first perforated tube 141 and a second perforated tube 142 connected to the air compressor 3. The first and second perforated tubes are arranged successively in the direction of the capture zone. The second perforated tube 142 is arranged upstream of the first perforated tube 141 in the direction X. The compressed air supply to the first and second perforated tubes 141, 142 is regulated by the microcontroller 5.

During a first supply step, the first tube 141 is supplied with compressed air. At the same time as the first step of supplying the first perforated tube 141, there takes place a first step of stopping the supply of the second perforated tube, during which the second perforated tube 142 has no compressed air supply.

The compressed air supply to the first perforated tube allows the generation of a first curtain of air bubbles 81. The first curtain of air bubbles 81 rising to the surface of the water 13 generates a first displacement wave 1141 moving at least one element E in the direction of the second perforated tube 142 disposed upstream of the first tube 141 (illustrated in FIG. 3b). At the end of the first supply step, at least one element E is located in a zone ZA upstream of the second perforated tube 142.

Preferably, the duration of the first feeding step is identical to the duration of the first feeding stopping stage. Advantageously, the first feed step and the first feed stop step take place simultaneously.

Successively to the first supply step and the first supply stop step, a second step of supplying compressed air to the second perforated tube 142 takes place, during which the compressor supplies the second perforated tube with compressed air.

142 in compressed air. The compressed air escaping from the second perforated tube 142 generates a second curtain of air bubbles 82. The second curtain of air bubbles 82 rising to the surface of the water 13 generates a first displacement wave 1142 moving through the water. at least one element E in the direction of the capture zone ZC disposed upstream of the second tube 142 (illustrated in FIG. 3b). At the end of the second supply step, at least one element E has reached a collector located in the capture zone ZC.

During the second supply step, the second tube 142 is supplied with compressed air. At the same time as the second step of supplying the first perforated tube 141, there takes place a second step of stopping the supply of the first perforated tube 141, during which the first perforated tube 141 has no compressed air supply.

Preferably, the duration of the second feeding step is identical to the duration of the second feeding stopping stage.

Advantageously, the second feed step and the second feed stop step take place simultaneously. Even more preferably, the duration of the first power supply and supply shutdown steps and the second supply and supply shutdown steps are identical. The duration of each of these steps can be between 1 s and 60 s, preferably between 4 s and 30 s.

The first tube 141 and the second tube 142 are spaced in the direction of the capture zone ZC, in the direction X, by a distance of between 4 and 8m, preferably between 4 and 6m.

The second perforated tube 142 is placed at a distance of 4 to 8 m from the capture zone ZC, preferably 4 to 6 m. Even more preferably, the second perforated tube 142 is arranged at a distance of 4 to 8 m from a collection end of the collector, preferably 4 to 6 m.

The first perforated tube 141 and the second perforated tube 142 respectively comprise a portion of tube 161, 162, provided with perforations 171, 172. The perforations 171 of the first perforated tube 141 may be identical or distinct from the perforations 172 of the second tube.

The first and second tubes 141, 142 may respectively comprise a portion 6 provided with perforations 171, 172 corresponding to one of the profiles illustrated in FIGS. In a particular embodiment, the first and second perforated tube 141,

142, include a common part 143, formed by a tube, which is connected to the air compressor 3. The common part is fluidly connected to the portions 161, 162 of tubes provided with perforations 171, 172 to allow the supply of compressed air. of these portions 161, 162 of tubes. The device 101 according to the second embodiment can comprise more than two tubes connected to the air compressor 3, namely N tubes connected to the air compressor 3, with N greater than or equal to 3. The N perforated tubes are arranged successively. in the direction of the capture zone ZC in the direction X. The first perforated tube 141 is the most downstream of the capture zone, namely the furthest from the capture zone ZC, in the direction X. The "Nth The perforated tube is placed the most upstream, namely the closest to the capture zone ZC, in the direction X. The compressed air supply to the N perforated tubes is regulated by the microcontroller 5.

The N perforated tubes are successively supplied with compressed air to make it possible to move floating or submerged elements in a zone ZA upstream from the first perforated tube 141 to the capture zone ZC using N successive bubble curtains.

Preferably, the N perforated tubes are spaced in the direction of the capture zone ZC, in the direction X, by a distance of 4 to 8 m, more preferably 4 to 6 m, more preferably 3 m. Even more preferably, the “N th” perforated tube is placed at a distance of 4 to 8 m from a collection end of the collector or of the collection zone, preferably 4 to 6 m, more preferably B m.

A feed cycle of the N perforated tubes is defined such that each of the perforated tubes is fed individually, once per cycle, successively and after stopping the supply of another perforated tube. The most downstream perforated tube 141 is first supplied with compressed air during the supply cycle, then the next tube arranged upstream, in the direction X of the capture zone ZC, is supplied. The cycle is completed when the step of supplying compressed air to the "Nth" perforated tube is completed.

Two tubes supplied successively are arranged side by side in the X direction, so that the first of the two tubes supplied with compressed air is downstream of the second.

The power cycle is reproduced periodically.

The first perforated tube 141 being arranged furthest from the capture zone ZC is supplied first. The tubes arranged successively upstream, in the direction X, are successively supplied with compressed air until the perforated tube closest to the capture zone ZC is supplied with compressed air.

Preferably, two perforated tubes arranged successively in the direction X are not supplied with compressed air simultaneously. FIG. 3c illustrates an embodiment of the device 101 according to the invention. The device comprises a plurality of N rectilinear perforated tubes 163-1 to 163-N aligned in parallel connected to an apparatus supplying air, such as a compressor 3 by a common tube 40. Each of the N perforated tubes 163-1 at 163-N is parallel to the catchment area. N is a number greater than or equal to 2. The N perforated tubes 163-1 to 163-N are arranged successively in the direction of the capture zone ZC in the direction X. The first perforated tube 163-1 is the most downstream of the capture zone ZC, namely the furthest from the capture zone ZC, in the direction X. The "Nth" perforated tube 163-N is placed furthest upstream, namely the closest to the ZC capture, according to the X direction. The compressed air supply to the N perforated tubes 163-1 to 163-N is regulated by the microcontroller 5.

In the case of Figure 3c, three perforated tubes are illustrated, but the embodiment is not limited to this number of perforated tubes 163-1 to 163-N. Preferably, the N perforated tubes are spaced in the direction of the capture zone ZC, in the direction X, by a distance of 1 to 8 m, more preferably 2 to 6 m, more preferably 3 m.

Even more preferably, the “Nth” perforated tube is placed at a distance of 1 to 8 m from the capture zone, preferably 2 to 6 m, more preferably 3 m. A feed cycle of the N perforated tubes is defined such that each of the perforated tubes is fed individually, once per cycle, successively and after stopping the supply of another perforated tube. The perforated tube 163-1, the most downstream, is supplied first with compressed air during the supply cycle, then the next tube arranged upstream, in the direction X of the capture zone ZC is supplied, until "Nth" tube 163-N is supplied with compressed air by the compressor 3. The cycle is completed when the step of supplying compressed air to the "Nth" perforated tube 163-N is completed.

The power cycle is reproduced periodically.

Preferably, two perforated tubes 163-i and 163-i-l arranged successively in the direction X are not supplied with compressed air simultaneously.

The embodiment illustrated in FIG. 3c can be modified by changing the profile of the N perforated tubes.

Figure 3d illustrates N perforated tubes 164-1 to 164-N, aligned parallel, have a curved profile forming an area at least partially encircled, as illustrated in Figure lb. This partially encircled zone of the "Nth" tube 164-N comprises the capture zone. Figure 3e illustrates N perforated tubes 165-1 through 165-N aligned parallel. Each of the perforated tubes 165-1 to 165-N has a first part 9 and a second part 10 rectilinear connected by an elbow connection 11. The first part 9 extends parallel to an edge of the capture zone ZC, preferably parallel to a collecting end of a collector. The second part 10 extends towards an edge of the body of water where the capture zone ZC is located. The angle a formed by the bent connection 11 is greater than or equal to 90 ° and strictly less than 180 °, preferably this angle is greater than or equal to 90 ° and less than or equal to 135 °.

According to different embodiments, it is possible to combine different profiles of perforated tubes mentioned above.

FIG. 3f illustrates an embodiment of the device 101 according to the invention, an embodiment comprising N perforated tubes.

N is a positive integer greater than 1, and i is a positive integer such that l £ i £ N-1. Each of the "i th" perforated tubes 166-1, 166-i is formed by a perforated rectilinear tube.

Each of the "i-th" perforated tubes 166-i are arranged parallel to each other and parallel to the capture zone ZC.

The "Nth" perforated tube is formed by a tube having a curved profile as illustrated in Figures lb and 3d. This partially encircled zone of the “N th” tube 166-N comprises the capture zone.

In another embodiment, the "Nth" perforated tube has a first part 9 and a second part 10 rectilinear connected by an elbow connection 11. The second part 10 extends towards an edge of the extent d. water where the ZC catchment area is located. The angle a formed by the bent connection 11 is greater than or equal to 90 ° and strictly less than 180 °, preferably this angle is greater than or equal to 90 ° and less than or equal to 135 °. The profile of the "Nth" perforated tube allows the elements E to converge towards the capture zone ZC.

In a particular embodiment, the perforated tubes N and N-1 have the same profile or a combination of perforated tubes according to one of the embodiments illustrated in FIGS. 1b to 1d. The fact that the perforated tubes N and N-1 are not rectilinear makes it possible to optimize the convergence of the elements E towards the capture zone ZC.

Preferably, in each of the embodiments mentioned above, the N pairs of perforated tubes are spaced in the direction of the capture zone ZC, in the direction X, by a distance of 1 to 8 m, more preferably 2 to 6. m, more preferably B m.

Even more preferably, in each of the embodiments, the “N th” perforated tube is placed at a distance of 1 to 8 m from the capture zone ZC, preferably 2 to 6 m, more preferably 3 m.

FIG. 4a is a schematic representation of a device 201 for moving, in an X direction, an element E floating or submerged in a body of water 2 according to a third embodiment. This third embodiment corresponds to a specific embodiment of the second embodiment.

The device 201 comprises a common part 202, preferably in the form of a tube, and a network of perforated tubes formed by N pairs of perforated tubes 240-1 to 240- N, arranged successively along an axis X directed towards the zone of ZC capture. The “N th” pair of perforated tubes is placed furthest upstream, namely the closest to the capture zone ZC, in direction X. The compressed air supply to the N perforated tubes is regulated by the microcontroller 5. The first pair of perforated tubes 240-1 is the pair of tubes 1a placed most downstream with respect to the capture zone ZC. The first pair of perforated tubes 240-1 is the pair of perforated tubes furthest from the ZC capture zone, and the “N th” pair of perforated tubes is the pair of perforated tubes closest to the ZC capture zone .

N is a positive integer greater than 1. Preferably, the N pairs of perforated tubes 240 are spaced in the direction of the capture zone ZC, in the direction X, by a distance of 1 to 8 m, more preferably 2 to 6 m, even more preferably 3 m.

Even more preferably, the “N th” pair of perforated tubes is arranged at a distance of 1 to 8 m from a collection end of the collector, preferably 2 to 6 m, even more preferably 3 m.

Each of the pairs of tubes is defined in the same way as the first pair of perforated tubes 240-1.

The first pair of perforated tubes is defined by a first tube 240-la and a second tube 240-lb connected by an elbow link 240-lc forming an angle a1.

N is a positive integer greater than 1, and i is a positive integer such that l £ i £ N.

The "i-th" pair of perforated tubes 240-i comprises a first tube 240-ia and a second tube 240-ib connected by an elbow link 240-ic forming an angle α. The common part 202 opens at a through opening of the elbow connection of each of the pairs of perforated tubes 240 or at a through opening opening directly into the first and second tubes of each of the pairs. The through openings make it possible to ensure fluid communication between the compressor 3 and each of the pairs of perforated tubes 240 to supply the first and the second tubes of each pair 240 with compressed air.

Each of the through openings is configured to be closed or open and allow the supply of a perforated tube with compressed air.

Preferably, the through openings of a pair of tubes are configured to be open or closed simultaneously, and that the first and second tubes of the pair 240 are supplied or not supplied with compressed air simultaneously. Advantageously, only the common part is directly connected to the compressed air compressor. Thus, the network of tubes is simplified and a smaller number of tubes must be immersed in the body of water 2.

Preferably, the angles a1 to aN are between 90 and 180 °. In a particular embodiment, the angles a1 to aN are identical.

Preferably, the common part 202 extends longitudinally in the same horizontal plane as the first and second portions of each of the N pairs of perforated tubes 240. The common part can be arranged so that its longitudinal axis forms a bisector with respect to it. at each of the angles a1 to aN. Advantageously, the first tubes, respectively the second tubes, of each pair of perforated tubes 240, are mutually parallel and the longitudinal axis of the common part forms an axis of symmetry.

Preferably, the portion of the common part 202, carrying each of the pairs of perforated tubes 240, extends perpendicularly to the capture zone ZC, even more preferably, in a direction perpendicular to a collection end of a collector located in the capture area.

A power cycle of the N pairs of perforated tubes 240 is defined such that each of the pairs of perforated tubes is fed individually, once per cycle, successively and after stopping the supply of another perforated tube. The first pair of perforated tubes 240-1 most downstream is supplied first with compressed air during the supply cycle, then the next pair of perforated tubes 240-2 arranged directly upstream, in the X direction of the zone of ZC capture is powered. The pairs of perforated tubes 240 are thus supplied successively until the “N th” pair of perforated tubes is supplied with compressed air. The cycle is completed when the step of supplying compressed air to the "Nth" pair of perforated tubes is completed. Two pairs of tubes supplied successively are arranged side by side in the direction X, so that the first of the two pairs of tubes supplied with compressed air is downstream of the second.

The power cycle is reproduced periodically. FIG. 4b is a schematic representation of a device 201 for moving, in an X direction, an element E floating or submerged in a body of water 2 according to one embodiment.

The device 201 comprises a common part 202, preferably in the form of a tube, and a network of perforated tubes formed by N pairs of perforated tubes 250-1 to 250- N, arranged successively along an axis X directed towards the zone of ZC capture. The first pair of perforated tubes 250-1 is the pair of tubes placed most downstream with respect to the capture zone ZC. The first pair of perforated tubes 250-1 is the pair of perforated tubes furthest from the ZC capture zone, and the “Nth” pair 250-N of perforated tubes is the pair of perforated tubes closest to the zone. ZC capture. The compressed air supply to the N perforated tubes is regulated by microcontroller 5.

N is a positive integer greater than 3, and j is a positive integer such that l £ j <N-1.

The "jth" pair of perforated tubes 250-j comprises a first tube 250-j a and a second tube 240-j b rectilinear and aligned, extending on either side of the common part 202.

The first tube 250-j a and the second tube 240-j b are coaxial.

The "Nth" and the "Nlth" pairs of perforated tubes 250-N respectively comprise a first tube 250-Nl a, 250-N a and respectively a second tube 250-Nl b, 250-N b respectively connected by a bent bond 250-Nl c, 250-N c forming an angle aN-1, aN.

The bent bonds aN-1, aN form an angle of between 30 ° and 60 °, preferably between 40 ° and 50, and even more preferably of 45 ° Preferably, each of the “j th” pairs of perforated tubes 250-j are spaced in the direction of the capture zone ZC, in the direction X, by a distance of 1 to 8 m, more preferably 2 to 6 m, even more. preferably B m.

The “N-2 nd” pair 250-N-2 of perforated tubes comprising a first tube 250-N-2 a and a second tube 250-N-2 b aligned, coaxial and parallel to the other “j th” pairs of tubes perforated with perforated tubes 250-j. The first tube 250-N-2 a includes an end 250-N-2 aE opposite to the common part 202. The second tube 250-N-2 b includes an end 250-N-2 bE opposite to the common part 202.

The first 250-Nl a tube of the "Nl th" pair 250-N-1 has a 250-Nl aE end opposite the common portion 202. The second 250-Nl b tube of the "Nl th" pair 250-Nl includes a 250-Nl bE end opposite the common part 202.

The end of the 250-N-2 aE, respectively the end of the 250-N-2 bE, is arranged at a distance of 1 to 8 m from the end 250-Nl aE, respectively from the end 250 -Nl bE, preferably 2 to 6 m, even more preferably 3 m.

The angled connection 250-Nl c is spaced from the angled connection 250-N c in the direction of the capture zone ZC, according to the direction X, by a distance of 1 to 8 m, more preferably 2 to 6 m, even more preferably 3 m.

The common part 202 opens at a through opening of the elbow connection of each of the pairs of perforated tubes 250 or at a through opening opening directly into the first and second tubes of each of the pairs. The through openings make it possible to ensure fluid communication between the compressor 3 and each of the pairs of perforated tubes 250 in order to supply the first and the second tubes of each of the pairs 250 with compressed air.

Each of the through openings is configured to be closed or open and allow the supply of a perforated tube with compressed air.

Preferably, the compressed air supply to each of the pairs of the perforated tubes is conditioned by the actuation of valve 612 (illustrated in FIGS. 6a and 6b). making it possible to open or close the fluid communication between the common part 202 and each of the pairs 250 of perforated tubes.

Preferably, the through openings of a pair of tubes are configured to be open or closed simultaneously, and that the first and second tubes of a pair of perforated tubes 250 are supplied or not supplied with compressed air simultaneously.

Advantageously, only the common part is directly connected to the compressed air compressor. Thus, the network of tubes is simplified and a smaller number of tubes must be immersed in the body of water 2. A supply cycle of the N pairs of perforated tubes 250 is defined such that each of the pairs of perforated tubes is supplied individually, once per cycle, successively and after stopping the supply of another perforated tube. The first pair of perforated tubes 250-1 most downstream is supplied the first with compressed air during the supply cycle, up to the pair of perforated tubes 250-N arranged directly upstream, in the X direction of the zone ZC capture is supplied. The pairs of perforated tubes 250 are thus supplied successively until the “N th” pair of perforated tubes is supplied with compressed air.

The cycle is completed when the step of supplying compressed air to the "Nth" pair of perforated tubes is completed. Two pairs of tubes supplied successively are arranged side by side in the direction X, so that the first of the two pairs of tubes supplied with compressed air is downstream of the second.

The power cycle is reproduced periodically.

There is an embodiment, similar to that illustrated in Figure 4b, where the profile of the "Nl th" pair 250-Nl of perforated tubes 250-Nl a, 250-Nl b has the same profile as each of the "jth". »250-j pair of perforated tubes 250-ja, 250-j b. In this case the first and second tubes 250-Nl a, 250-Nl b are rectilinear and coaxial. In this embodiment, the pair "Nl th" 250-Nl of perforated tubes comprising a first tube 250-Nl a and a second tube 250-Nl b aligned, coaxial and parallel to the other "j th" pairs of perforated tubes of perforated tubes 250-j. The first 250-Nl a tube has a 250-Nl aE end opposite the common part 202. The second 250-Nl b tube has a 250-Nl bE end opposite the common part

202.

The first tube 250-N a of the "Nth" pair 250-N has a 250-N end aE opposite the common portion 202. The second tube 250-N b of the "Nth" pair 250-N has an end 250-N bE opposite to the common part 202.

The end of the 250-Nl aE, respectively the end of the 250-Nl bE, is arranged at a distance of 1 to 8 m from the end 250-N aE, respectively from the end 250-N bE, preferably 2 to 6 m, even more preferably B m.

FIG. 5 is a schematic representation of a device 301 for moving, in an X direction, an element E floating or submerged in a body of water 2 according to a fourth embodiment. This fourth embodiment corresponds to a specific embodiment of the second embodiment.

The device 301 comprises a common part 302, preferably in the form of a tube, and a network of perforated tubes formed by N pairs of perforated tubes 340-1 to 340- N, arranged successively along an axis X directed towards the zone of ZC capture. N is a positive integer greater than 1. The first pair of perforated tubes 340-1 is the pair of perforated tubes furthest from the capture zone ZC, and the “N th” pair of perforated tubes 340-N is the pair of perforated tubes closest to the ZC capture zone.

Preferably, the N pairs of perforated tubes 340 are spaced in the direction of the capture zone ZC, in the direction X, by a distance of 4 to 8 m, preferably 4 to 6 m.

Even more preferably, the pair of tubes 340-N is arranged at a distance of

4 to 8 m from a collection end of the collector, preferably 4 to 6 m. Each of the pairs of tubes is defined in the same way as the first pair of perforated tubes 340-1.

The first pair of perforated tubes 340-1 is defined by a first tube 340-la comprising: a first part 340-la extending longitudinally, along a first longitudinal axis perpendicular to the longitudinal direction of the common part 302, a second part 340-la2 extending longitudinally along a second longitudinal axis, the first and second longitudinal axes being intersecting, and an elbow connection 340-la3 fluidly connecting the first and second parts 340-la, 340-la2 of the first tube 340-la , the elbow connection 340-la3 forms an angle between the first and second longitudinal axes,

The first pair of perforated tubes 340-1 is further defined by a second tube comprising 340-lb: a first part 340-lbl extending longitudinally, along the first longitudinal axis perpendicular to the common part 302, aligned with the first part of the first tube 340-lal a second part 340-lb2 extending longitudinally along a second longitudinal axis, the first and second longitudinal axes being intersecting, and an elbow connection 340-lb3 fluidly connecting the first and the second parts 340-lbl, 340-lb2 of the 340-lb tube, the elbow link 340-lb3 forms an angle a21 between the first and second longitudinal axes.

"I" is a positive integer such as l £ i £ N, and the "th" pair of tubes comprises a first tube having an elbow link 340-ia3 forming an angle ali and a second tube having an elbow link 340- ib3 forming an angle a2i.

The common part 302 opens into at least one through opening of each first and second perforated tubes of each pair of perforated tubes 340.

The through openings make it possible to ensure fluid communication between the compressor 3 and each of the pairs of perforated tubes 340 in order to supply the first and the second tubes of each pair 340 with compressed air. Each of the through openings is configured to be closed or open and allow the supply of a perforated tube with compressed air.

Preferably, the through openings of a pair of tubes are configured to be open or closed simultaneously, and that the first and second tubes of the pair 340 are supplied or not supplied with compressed air simultaneously.

Preferably, the first part and the second part of each tube of a pair of perforated tubes extend over a distance of between 1 and 5 m, preferably 3 m.

Preferably, the angles ail to alN and the angles a21 to a2N are between 90 and 180 °, more preferably between 135 and 180 °.

In a particular embodiment, the angles a1 to aN are identical.

Preferably, the common part 302 extends longitudinally in the same horizontal plane as the first and second tubes of each of the N pairs of perforated tubes 340. The common part 302 can be arranged so that its longitudinal axis forms an axis of symmetry.

Preferably, the first parts of the first and second tubes of each pair of perforated tubes 340 are mutually parallel. And preferably the second parts of the first tubes, respectively, the second parts of the second tubes of each pair of the perforated tubes 340 are mutually parallel. Preferably, the portion of the common part 302, carrying each of the pairs of perforated tubes 340, extends perpendicularly to the collection zone ZC, even more preferably, in a direction perpendicular to a collection end of a collector located in the capture area.

A supply cycle of the N pairs of perforated tubes is defined such that each of the pairs of perforated tubes is supplied individually, once per cycle, successively and after stopping the supply of another perforated tube. The first pair of perforated tubes 340-1 most downstream is supplied the first with compressed air during the cycle feed, then the next pair of perforated tubes 340-2 directly arranged upstream, in the X direction of the capture zone ZC is fed. The pairs of perforated tubes 340 are thus supplied successively until the “N th” pair of perforated tubes is supplied with compressed air. The cycle is complete when the step of supplying compressed air to the "Nth" pair of perforated tubes 340-N is completed.

Two pairs of tubes supplied successively are arranged side by side in the X direction, so that the first of the two pairs of tubes supplied with compressed air is downstream of the second. The power cycle is reproduced periodically.

Regarding the second, third and fourth embodiments, an alternating power cycle can comprise the simultaneous feeding of at least two perforated tubes or two pairs of perforated tubes can take place simultaneously, in the case where the two tubes are not. not arranged directly upstream or downstream of each other. Such an alternating supply cycle makes it possible to accelerate the movement of floating or submerged elements in the direction of the capture zone ZC.

FIG. 6a illustrates a mechanical reinforcement structure 600 at the level of a connection formed between a common part 202 connected to the compressor and a pair 610 of coaxial perforated tubes 610-a, 610-b. The mechanical reinforcement structure 600 comprises four sections 601, 602,

603 604.

The third section 603 is fixed on the one hand on an upper face of the first section 601 and on the other hand on an upper face of the second section 602. The fourth section 604 is fixed on the one hand on the upper face of the first section 601 and on the other hand on the upper face of the second section 602.

The first profile 601 includes a circular opening 601-3 corresponding to the outside diameter of the first tube 610-a of the pair of tubes passing through the first profile 601. The second profile 602 comprises a circular opening 602-3 corresponding to the outside diameter of the second tube 610-b of the pair 610 of tubes passing through the second profile

602. FIG. 6 illustrates a pair of coaxial perforated tubes connected by a tee connection 613. To allow the connection of the first coaxial tube 610-a and of the second coaxial tube 610-b using the tee connection 613, the openings 601-3 and 602-3 are aligned and coaxial.

The third and the fourth sections 603, 604 respectively comprise a circular opening 603-3, 604-3, corresponding to the diameter of the common part 202 passing through the third and fourth sections 603, 604.

FIG. 6b illustrates a reinforcing structure disposed at an elbow connection 620-c, between a first tube 620-a and a second tube 620-b of a pair of perforated tubes. To allow the connection of the first and second tubes 620-a, 620-b using an elbow connection 620-c, the first section 601 comprises an opening 601-3 ', crossed by the first tube 620-a, formed obliquely at the second end 601-2 of the first section. Likewise, the second section 602 comprises an opening 602-3 ′, through which the second tube 620-b passes, formed obliquely at the second end 602-2 of the second section.

In one embodiment, each of the profiles includes first and second opposite ends. The third section 603 is fixed, at its first end 603-1, on the upper face of the first section 601 at the level of the first end 601-1, and is fixed, at its second end 603-2, on the upper face of the second section 602 at the first end 602-1. The fourth section 604 is fixed, at its first end 604-1, on the upper face of the first section 601 at the level of the second end 601-2, and being fixed, at its second end 604-2, on the upper face of the second section 602 at the second end 602-2.

In a particular embodiment, the first section 601 and the second section 602 are parallel.

In a particular embodiment, the third section 603 and the fourth section 602 are parallel. In one embodiment, the mechanical reinforcement structure 600 has a rectangular shape.

Preferably, each connection zone between the common part and a pair of perforated tubes comprises a mechanical reinforcement structure 600. Advantageously, the presence of a mechanical reinforcement structure makes it possible to reinforce the mechanical resistance of the tubes forming the common part and the pairs. of perforated tubes, more particularly to the connection zone between the common part and a pair of perforated tubes. This mechanical reinforcement structure thus also makes it possible to avoid air leaks at these connection zones. FIG. 6a further illustrates of the reinforcement structure 600, an embodiment of the connection of the common part to a pair of coaxial perforated tubes 610-a, 610-b.

The common part 202 comprises, at the level of the connection with the pair 610 of perforated tubes, a first coaxial tube 202-a and a second tube 202-b connected by two openings facing a tee connection 611 The tee connection 611 comprises a perpendicular opening forming a bypass allowing the supply of compressed air to the pair 610 of perforated tubes. The perpendicular opening opens out at the inlet of a valve 612. The valve 612 makes it possible to regulate the supply of compressed air to the pair 610 of perforated tubes. The outlet of the valve 12 opens into a tee connection 613 at the level of the opening perpendicular to the two opposite coaxial openings. Each of the opposing coaxial openings is connected one to the first tube 610-a and the other to the second tube 610-b.

FIG. 6b further illustrates of the reinforcement structure 600, an embodiment of the connection of the common part to a pair 620 of perforated tubes 620-a, 620-b connected by an elbow connection zone 620-c. The composition of the common part 202 and of the bypass to the valve 612 and the fact that the valve opens at the level of the perpendicular opening of the tee connection 613. In the case of a pair of perforated tubes connected by an elbow link 620-c, the first tube 620-a comprises a first portion of tube 620-al, an elbow link 624-a and a second portion of the first tube 620-a2. The first portion 620-a1 being linked on the one hand to the tee connection 613, and on the other hand to a first end of the elbow connection 624-a. The second portion of the first tube 620-a2 is connected to the second end of the elbow link 624-a. The second tube 620-b comprises a first portion of tube (not visible), an elbow link 624-b and a second portion of the first tube 620-b2. The first portion being linked on the one hand to the tee connection 613, and on the other hand to a first end of the elbow connection 624-b. The second portion of the first tube 620-b2 is connected to the second end of the elbow link 624-b.

The elbow link 620-c is formed by the tee link, the first portion 620-al of the first tube 620-a and the elbow link 624-a, the first portion (not visible) of the second tube 620-b and the link cubit 624b.

In one embodiment, illustrated in FIG. 7, at least one mechanical reinforcement structure 600 comprises a ballast 630 fixed to the upper faces of the third section 603 and of the fourth section 604.

The ballast 630 allows the device for moving a floating or submerged element E to be easily brought to the surface. The use of ballast also makes it possible to facilitate the immersion of the device. The ballast is an inflatable system connected by an air network. When the ballast is inflated, the submerged device acquires flotation and rises to the surface of the water. This allows the partially floating device to be easily installed and positioned using the inflated ballast (s). Raising the device to the surface, using ballast inflation, allows easy maintenance.

Claims

1. Device for moving (1) an element (E) floating or submerged in water (2) to a collection area (ZC) using a curtain of air bubbles (8), the device (1) comprising an air compressor (3) supplying compressed air to at least one perforated tube (4) provided with a single row of perforations (7), in which the perforations (7) of the tube and the tube perforated (4) are arranged in the water so as to generate a curtain of air bubbles (8) through the compressed air escaping from the perforations (7) towards the water surface ( 13), so as to generate a displacement of the floating element (E) towards the capture zone (ZC). 2. Device according to claim 1, wherein the device comprises at least two perforated tubes (4, 141, 142) arranged successively along an axis directed towards the capture zone (ZC), and a microcontroller (5) configured to manage the 'supply of at least two perforated tubes (4, 141, 142) so that the at least two tubes (4, 141, 142) are supplied successively. 3. Device according to claim 1 or 2, wherein the at least one perforated tube (4, 141, 142) is made of rot-proof material, preferably of metal or of plastic, more preferably of stainless steel or of aluminum. 4. Device according to one of the preceding claims, wherein the at least one perforated tube (4, 141, 142) comprises at least one portion (6) provided with perforations (7), the perforations (7) within the portion ( 6) are spaced, in the longitudinal direction of said tube, by a distance of between 1 cm and 33 cm, preferably every 4 cm. 5. Device according to one of the preceding claims, wherein the device (1) comprises at least two tubes (4, 141, 142) perforated connected to a common part (13) formed by a tube, the common part is configured to communicate fluidly. with each of the at least two tubes (4, 141, 142) and allow their supply of compressed air. 6. Device according to the preceding claim wherein the device comprises a common part (202), in the form of a tube, and a network of perforated tubes formed by N pairs of perforated tubes (240-1 to 240-N), arranged successively along an axis (X) directed towards the capture zone (ZC), the device comprises a microcontroller (5) configured to regulate the supply of compressed air to the N pairs of perforated tubes, N is a positive integer greater than 1, and i is a positive integer such that l £ i £ N, the first pair of perforated tubes (240-1) is the pair of perforated tubes furthest from the capture zone (ZC), and the “N th” pair of perforated tubes is the pair of perforated tubes closest to the capture zone (ZC), the “i th” pair of perforated tubes (240-i) includes a first tube (240-ia) and a second tube (240-ib) connected by an elbow link (240-ic) forming an angle α1, the “N th” pair of perforated tubes is arranged the most upstream, namely the most near the capture zone (ZC), in direction (X), the common part (202) opens out at a through opening of the elbow connection of each of the pairs of perforated tubes (240-1 to 240-N) , each of the through openings is configured to provide fluid communication between the compressor (3) and each of the pairs of perforated tubes (240) to supply the first and second tubes. bes of each pair (240) of compressed air, and each of the through openings is configured to be closed, or open and allow the supply of a perforated tube with compressed air. 7. Device according to claim 5, wherein the device comprises a common part, in the form of a tube, and a network of perforated tubes formed by N pairs of perforated tubes, arranged successively along an axis directed towards the capture zone. , the device comprises a microcontroller configured to regulate the supply of compressed air to the N pairs of perforated tubes, N is a positive integer greater than 2, i is a positive integer such that l £ i £ Nl, the first pair of perforated tubes is the pair of perforated tubes furthest from the capture zone, and the “N th »Pair of perforated tubes is the pair of perforated tubes closest to the capture zone, the “N th” pair of perforated tubes comprises a first tube and a second tube connected by an elbow connection forming an angle aN, each “i th” pair of perforated tubes comprises a first tube and a second coaxial tube connected by a connection in tee, so as to be aligned, and the first tube and the second tube are arranged perpendicular to the common part, the perpendicular part of the tee connection is connected to the common part, the common part opens out at a through opening of the elbow or tee connection of each of the pairs of perforated tubes, each of the through openings is configured to provide fluid communication between the compressor and each of the pairs of perforated tubes to supply the first and second tubes of each pair with compressed air , and each of the through openings is configured to be closed, or open and allow the supply of a perforated tube with compressed air. 8. Device according to claim 5, wherein the device comprises a common part (202), in the form of a tube, and a network of perforated tubes formed by N pairs (250) of perforated tubes, arranged successively along an axis. (X) directed towards the capture zone (ZC), the device comprises a microcontroller (5) configured to regulate the supply of compressed air to the N perforated tubes (250), N is a positive integer greater than 3, i is a positive integer such as Nl £ i £ N, and j is a positive integer such that l £ j <Nl, the first pair (250-1) of perforated tubes is the pair of perforated tubes furthest from the capture zone, and the “N th” pair of perforated tubes is the pair of perforated tubes closest to the capture zone (ZC), each “i th” pair ( 250-i) of perforated tubes comprises a first tube (250-Nl a, 250- N a) and a second tube (250-Nl b, 250-N b) connected by an elbow connection forming an angle ai (aN-1 , aN), each “j th” pair (250-j) of perforated tubes comprises a first tube (250-ja) and a second tube (250-jb) coaxial connected by a tee connection (250-jc), of so as to be aligned, and the first tube (250-ja) and the second tube (250-jb) are arranged perpendicular to the common part (202), the perpendicular part of the tee connection (250-jc) is connected to the common part (202), the common part (202) opens out at a through opening of the elbow connection (250-Nl c, 250-N c) or tee (250-jc) of each of the pairs (250) of perforated tubes, each of the through openings is configured to provide fluid communication between the compressor (3) and each of the pairs (250) of perforated tubes to supply the first and second tubes of each pair of compressed air, and each of the through openings is configured to be closed, or open and allow the supply of a perforated tube with compressed air. 9. Device according to one of claims 6 to 8, wherein the first tube and the second tube of each of the pairs of tubes comprising an elbow connection (240-ic, 250-Nl c, 250- N c) form an angle between 30 ° and 60 °, preferably between 40 ° and 50, and even more preferably 45 °. 10. Device according to one of claims 6 to 9, wherein at least one connection zone between the common part and a pair of perforated tubes comprises a mechanical reinforcement structure (600), the mechanical reinforcement structure is formed by four profiles (601, 602, 603, 604), the third profile (603) being fixed on the one hand on an upper face of the first profile (601) and on the other hand on an upper face of the second profile (602), the fourth section (604) being fixed on the one hand on the upper face of the first section (601) and on the other hand on the upper face of the second section (602), the first section (601) comprises an opening (601-3 ) circular corresponding to the outside diameter of the first tube of the pair of tubes passing through the first profile, the second profile comprises a circular opening (602-3) corresponding to the outside diameter of the second tube of the pair of tubes passing through the second profile, and the third and fourth profiles (603, 604) respectively include an opening (603-3, 604-3) circular, corresponding to the diameter of the common part (202) passing through the third and fourth profiles (603, 604). 11. Device according to claim 10, wherein at least one mechanical reinforcement structure (600) comprises a ballast (630) fixed to the upper faces of the third section (603) and of the fourth section (604). 12. Method of moving at least one submerged or floating element on a body of water, using a device (1) of one of claims 1 to 11, comprising: a first supply step , during which a compressor supplies compressed air to a perforated tube (4, 141) with compressed air for a first given period of time, the compressed air escaping from the perforations (7, 171) of the perforated tube (4, 141) generates a first curtain of air bubbles (81) which moves at least one submerged or floating element (E) over a first displacement distance in the direction of a capture zone (ZC). 13. A method according to claim 8, the method further comprising: a second perforated tube (4, 142) connected to the compressor (3), a first supply stopping step, during which the second perforated tube (4, 142) ) is devoid of compressed air supply, a second supply step, during which the compressor (3) supplies compressed air to the second perforated tube (4, 142) with compressed air during a second given period of time, the compressed air escaping from the second perforated tube (4, 142) generates a second curtain of air bubbles (82) which moves the at least one submerged or floating element (E) a second displacement distance towards the zone of capture (ZC), a second supply stopping step, during which the perforated tube (4, 141), supplied during the first supply step, is devoid of compressed air supply, the first and second distances displacement are substantially equal, the first feeding step and the first power-off stage occur simultaneously during the first given time period, the second power-off stage and the second power-off stage occur simultaneously during the second given time period, the first stage d 'feed and stop feed taking place before the second feed step and second stop feed step, the perforated tube (4, 141) fed during the first feed step and the second perforated tube (4, 142) being arranged successively along an axis directed (X) towards the capture zone (ZC), and the tube (4, 141) supplied during the first supply step is arranged further away from the zone capture (ZC) than the second tube (4, 142). 14. Method according to one of claims 8 or 9, wherein a network of tubes comprises N perforated tubes, or N pairs of tubes (240-1, ..., 240-N; 340-1, ..., 340-N) perforated according to claim 10, a cycle is defined such that each of the tubes or each of the pairs of tubes of the network is supplied individually, successively and after stopping the supply of another tube or d 'a pair of tubes, the two tubes or the two pairs of tubes fed successively are arranged side by side towards the capture zone, the power cycle is reproduced periodically, each of the tubes or pairs of tubes is fed only once during a power cycle, and the tube (4, 141) or the pair of tubes (240-1, 340-1) being arranged furthest from the capture zone (ZC) is fed first, the tubes or pairs of tubes arranged successively along an axis directed towards the capture zone are successively fed until the tube or pair of tubes (240-N, 340-N) closest to the capture zone (ZC) is fed, and the first (240-la, ..., 240-Na; 340-la, ..., 340-Na) and the second tubes (240-lb, ..., 240-Nb; 340-lb, ..., 340-Nb) of a pair of tubes (240- 1, ..., 240-N; 340-1, ..., 340-N) are simultaneously supplied or simultaneously without compressed air supply.