Water collector on solar panels
The integration of a water collector between pivotable solar panel rows, using sealed gutters and tubes, addresses the inefficiency of rainwater recovery in solar panel structures, ensuring operational stability and enhanced irrigation.
Patent Information
- Application Number
- FR2022012181
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-11-23
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2042-11-23
AI Technical Summary
Existing solar panel structures do not efficiently recover rainwater without disrupting their operational efficiency or structural integrity.
A water collector is integrated between the central edges of two pivotable rows of panels, collecting water via gutters that are in sealed contact with a longitudinal bar, ensuring the water flows without exerting moments on the pivot mechanism, and is directed through tubes to a reservoir.
The system optimizes water recovery efficiency while maintaining the operational stability of the solar panels, simplifying manufacturing and enhancing irrigation capabilities.
Smart Images
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Abstract
Description
Title of the invention: Water collector on solar panels
[0001] The present invention relates to a structure comprising panels which are mounted on a support above the ground, and which are orientable relative to the ground, that is to say relative to a vertical plane Z. Thus, the panels are mounted on an element which is mounted on this support and which extends along a main axis A, this main axis A being for example horizontal. The panels are arranged on either side of this element. The support is for example constituted by one or more posts parallel in this vertical plane Z and capable of being planted in the ground.
[0002] The fact that these panels can be oriented relative to the ground makes it possible to optimize their use. For example, in the case where these panels are solar panels, these panels can be oriented so that their exposure to the sun is optimal depending on the time of day. This optimal exposure allows for maximum energy efficiency of the panels over a given period.
[0003] Thus, a structure is known comprising a support and a pair of rows of panels mounted on this support such that a vertical plane is located between the first row and the second row of this pair, the first row and the second row each being able to pivot around a main axis located in the vertical plane to change its orientation relative to the vertical plane, each of the rows having a central edge which extends along this main axis and which is the edge of the row which is the edge closest to the vertical plane.
[0004] These rows of panels are orientable relative to the vertical plane Z, that is to say they can be oriented to form an angle 0 with a horizontal plane H perpendicular to the vertical plane Z, this angle 0 being measured relative to the first row around the main axis A. When the angle 0 is equal to 0°, the rows are horizontal. When the angle 0 is non-zero, the water is able to flow along the panels during a downpour. In certain situations, it may be advantageous to recover this rainwater. This is the case in particular when these panels, for example solar panels, are located above plantations. The water which flows over the panels can be recovered in order to be used to irrigate these plantations. Description of the invention
[0005] The invention aims to propose a device which makes it possible to recover the water which flows along the rows of panels, without disturbing the operation of the structure.
[0006] This object is achieved by the fact that the structure comprises a collector which is located at least partially in a vertical slice which includes the space between the central edge of the first row and the central edge of the second row and which is capable of collecting the water flowing on the first row and / or on the second row.
[0007] Thanks to these arrangements, the water is always collected at the pivot axis of the rows of panels. Thus, the operation of the structure is optimal because the weight of the collected water does not exert any moment on the pivot mechanism of the rows of panels.
[0008] For example, the structure comprises a longitudinal bar which is mounted on this support by a pivot connection and which extends along the main axis, the first row and the second row each being rigidly fixed on the longitudinal bar, the longitudinal bar being able to pivot around the main axis to change the orientation of the rows relative to the vertical plane.
[0009] Thus, the manufacturing of the structure is simplified.
[0010] For example, the first row and the second row extend in the same main plane.
[0011] Advantageously, the first row and the second row are positioned relative to each other to form an upwardly open V, the apex of which comprises the central edge of the first row and the central edge of the second row, the angle between the first row and the second row being a secondary angle.
[0012] Thus, water recovery is carried out on both panels simultaneously, which is more efficient.
[0013] Advantageously, the collector comprises at least one gutter inclined relative to the horizontal so as to facilitate the flow of water by gravity in the at least one gutter.
[0014] Thus, water recovery is simplified.
[0015] For example, the collector comprises a first gutter and a second gutter.
[0016] Advantageously, the structure comprises a longitudinal bar which is mounted on this support by a pivot connection and which extends along the main axis, the first row and the second row each being rigidly fixed on the longitudinal bar, the longitudinal bar being able to pivot about the main axis to change the orientation of the rows relative to the vertical plane, the first of the gutters extending in a space between the bar and the central edge of the first row, the second of the gutters extending in a space between the bar and the central edge of the second row.
[0017] Thus, water recovery is more efficient.
[0018] Advantageously, each of the gutters is in sealed contact over its entire length with the longitudinal bar.
[0019] Thus, water recovery is optimized.
[0020] For example, the support consists of a plurality of posts parallel in the vertical plane and capable of being held on the ground.
[0021] Advantageously, the structure comprises a plurality of tubes, each of the tubes being in fluid communication at its upper end with each of the gutters and in fluid communication at its lower end with a reservoir.
[0022] Thus, the water recovery system is more efficient.
[0023] The invention will be better understood and its advantages will appear better on reading the detailed description which follows, of embodiments shown as non-limiting examples. The description refers to the appended drawings in which:
[0024] [Fig-1] [Fig.l] is a perspective view of a structure according to a first mode of carrying out the invention.
[0025] [Fig.2] [Fig.2] is a perspective view from below of a portion of the structure of [Fig.l].
[0026] [Fig.3] [Fig.3] is a perspective view showing an example of fixing the gutters of the structure collector.
[0027] [Fig.4] [Fig.4] illustrates two views in two directions of the collector and the system water transport of the structure.
[0028] [Fig.5] [Fig.5] is a perspective view of a structure according to a second embodiment of the invention.
[0029] [Fig.6] [Fig.6] is a perspective view of the structure according to the second mode embodiment of the invention, with another orientation of the panels. Detailed description of the invention
[0030] In the description below, the terms "down" and "up" are defined relative to the vertical direction.
[0031] A structure according to the invention comprises a support 10 which extends in a vertical plane Z and at least one pair of rows of panels (31, 32) mounted on this support 10 such that the vertical plane Z is located between the first row 31 and the second row 32 of this pair. In other words, the vertical plane Z separates the first row 31 and the second row 32. A horizontal plane H is defined which is perpendicular to the vertical plane Z.
[0032] The first row 31 and the second row 32 are each capable of pivoting about a main axis A which is located in the vertical plane Z. For example, the main axis A is horizontal as illustrated in [Fig.l]. Thus, each of the rows (31, 32) is capable of changing its orientation relative to the horizontal plane H (and to the vertical plane Z).
[0033] The rows (31, 32) may have any shape. For example, each of the rows (31, 32) is rectangular. Each of the rows (31, 32) is for example made up of one or more panels, each of these panels being for example a solar panel, as illustrated in [Fig.l].
[0034] The first row 31 has a central edge 315 which extends in the direction of the main axis A and which is the edge of the first row 31 which is closest to the vertical plane Z. Similarly, the second row 32 has a central edge 325 which extends in the direction of the main axis A and which is the edge of the second row 32 which is closest to the vertical plane Z. The two central edges (315, 325) are parallel.
[0035] The distal edge 319 of the first row 31 is the edge which extends in the direction of the main axis A and which is furthest from the vertical plane Z. The distal edge 329 of the second row 32 is the edge which extends in the direction of the main axis A and which is furthest from the vertical plane Z.
[0036] The structure comprises a collector 50 which is located partially (for example mostly) or entirely in a vertical slice which includes the space between the central edge 315 of the first row 31 and the central edge 325 of the second row 32. This vertical slice is therefore a region which extends vertically and which passes into this space. For example, the collector 50 is located in the part of this region which is between the central edges (315, 325). For example, the collector 50 is located immediately below this part. The collector 50 is able to collect the water flowing on the first row 31 and / or on the second row 32. The collector 50 is in fluid communication with a reservoir (not shown) in which the collected water can be stored.
[0037] For example, the collector 50 comprises at least one gutter (51, 52) inclined relative to the horizontal so as to facilitate the flow of water by gravity in the at least one gutter (51, 52). For example, the collector 50 comprises a first gutter 51 and a second gutter 52.
[0038] A first embodiment of the invention is described below, with reference to Figures 1 to 4.
[0039] In this first embodiment, the first row 31 and the second row 32 extend in the same main plane P, as illustrated in [Fig.l]. The structure comprises a longitudinal bar 20 which is mounted on this support 10 by a pivot connection whose axis is the main axis A. The longitudinal bar 20 has for example a square or rectangular section. The first row 31 and the second row 32 are each rigidly fixed on the longitudinal bar 20 at its central edge (315, 325), such that they are integral with the longitudinal bar 20. For example, this fixing of the rows (31, 32) is directly on the longitudinal bar 20. Alternatively, this fixing is indirect, by means of another mechanical part. The longitudinal bar 20 is able to pivot around the main axis A to change the orientation of the rows (31, 32). The bar 20 is located in a region that extends vertically between the rows (31, 32). For example the longitudinal bar 20 is located immediately below the main plane P. Alternatively the main plane P crosses the longitudinal bar 20 and the axis A is then located in the main plane P.
[0040] For each of the rows (31, 32), two transverse bars 25 each extend from the central edge (315, 325) to the distal edge (319, 329) of this row (31, 32). Alternatively, the transverse bars 25 each extend over only a portion of the edge of the row (31, 32) which goes from the central edge (315, 325) to the distal edge (319, 329) of this row (31, 32). Each transverse bar 25 is perpendicular to the main axis A. The transverse bars 25 are rigidly fixed to the longitudinal bar 20 (either directly or indirectly via another part) and extend in the same plane. This plane can be the plane of the rows (31, 32) (main plane P) or be a parallel plane located below the rows (31, 32). For each row (31, 32), the two crossbars 25 are spaced apart by a non-zero distance which is, for example, equal to the length of the row (31, 32). The length of the row (31, 32) is measured along the main axis A.Each of the rows (31, 32) therefore rests on two of the crossbars 25. Each crossbar 25 which extends on the side of the first row 31 is an extension of the crossbar 25 which extends on the side of the second row 32. Alternatively, these two crossbars 25 join to form a single crossbar 25 which extends on the side of the first row 31 and on the side of the second row 32.
[0041] The angle 0, measured around the main axis A, is the angle of orientation of the rows (31, 32) with the horizontal plane H. This angle 0 (called the primary angle) is therefore the angle between the main plane P and the horizontal plane H. By convention, the angle 0 is the angle of the first row 31 measured from the horizontal plane H.
[0042] The structure comprises a pivoting mechanism which is capable of pivoting the longitudinal bar 20 and therefore the rows (31, 32) around the main axis A. For example, this pivoting mechanism comprises a motor (not shown for the sake of clarity) and a shaft controlled by this motor and which is mechanically connected to the longitudinal bar 20.
[0043] The collector 50 comprises two parallel gutters (51, 52), the first 51 of these gutters extends substantially in the direction of the main axis A near the longitudinal bar 20 and on the side of the first row 31, the second 52 of these gutters extends substantially in the direction of the main axis A near the longitudinal bar 20 and on the side of the second row 32. Each of the gutters (51, 52) has a U shape open upwards. Each of the gutters (51, 52) is located below the main plane P of the rows (31, 32). Thus, water easily runs off the panels into the gutters (51, 52)
[0044] In a first position (as illustrated in [Fig.l]) the first row 31 is above the second row 32. This position corresponds to a strictly positive angle 0 since the angle 0 is measured upwards relative to the first row 31. In the case where the central edge 315 of the first row 31 is spaced laterally (parallel to the main plane P) from the longitudinal bar 20, the water collected on the panels of the first row 31 runs into the first gutter 51. In the case where the central edge 315 of the first row 31 is located overhanging the longitudinal bar 20, the water collected on the panels of the first row 31 runs onto the longitudinal bar 20 and then into the second gutter 52.
[0045] In a second position, the second row 32 is above the first row 31. This position corresponds to a strictly negative angle 0 and the collected water flows only from the second row 32 towards the second gutter 52. In the case where the central edge 325 of the second row 32 is spaced laterally (parallel to the main plane P) from the longitudinal bar 20, the water collected on the panels of the second row 32 runs into the second gutter 52. In the case where the central edge 325 of the second row 32 is located overhanging the longitudinal bar 20, the water collected on the panels of the second row 32 runs onto the longitudinal bar 20 and then into the first gutter 51.
[0046] For example, each of the gutters (51, 52) is in sealed contact along its entire length with the longitudinal bar 20. Thus, the water which runs along each of the rows (31, 32) on the longitudinal bar 20 flows into the gutters (51, 52) with less loss than when the contact is not sealed. [Fig. 3] illustrates the first gutter 51 and the longitudinal bar 20. The second gutter 52 is hidden in [Fig. 3] and is shown in dotted lines. The first gutter 51 has a lip 512 which is in contact with the longitudinal bar 20 all along the first gutter 51 and which provides sealing between the first gutter 51 and the longitudinal bar 20. Similarly, the second gutter 52 has a lip 522 which is in contact with the longitudinal bar 20 all along the second gutter 52 and which provides sealing between the second gutter 52 and the longitudinal bar 20.
[0047] The gutters (51, 52) are fixed on the lateral faces of the longitudinal bar 20, for example by belts which pass through holes in the lips (512, 522), as illustrated in [Fig.3].
[0048] Alternatively, the gutters (51, 52) are fixed on the upper face (or the lower face) of the longitudinal bar 20 and the edge (or the lip) of each gutter (51, 52) is located in the plane of the upper face (or the lower face) of the longitudinal bar 20.
[0049] Alternatively, the first gutter 51 is further in sealed contact over its entire length with the central edge 315 of the first row 31, and the second gutter 52 is further in sealed contact over its entire length with the central edge 325 of the second row 32. Thus, the water which runs along each of the rows (31, 32) flows into the gutters (51, 52) with less loss than when the contact is not sealed.
[0050] If the longitudinal bar 20 does not have faces (for example if the longitudinal bar 20 is of circular section), the gutters (51, 52) are fixed at such or such height on the surface of the longitudinal bar 20.
[0051] The support 10 is made up of a plurality of posts 11 parallel in the vertical plane Z and capable of being planted in the ground. Alternatively, the support 10 is made up of several other elements fixed in the ground. Alternatively, the support 10 is made up of elements (for example posts 11) which are fixed on one or more concrete blocks placed on the ground and capable of holding these elements in position. For example, this concrete block is a stringer (horizontal concrete beam). Alternatively, the support 10 is made up of a single post 11.
[0052] The structure comprises a plurality of tubes 70, each of the tubes 70 extending along one of the posts 11 and being fixed to this post 11. Each tube 70 is in fluid communication at its upper end 73 with each of the gutters (51, 52). One of these tubes 70 is visible in [Fig. 2], which is an enlarged view of a portion of the structure around one of the posts 11.
[0053] For example, the upper end 73 is extended by a primary pipe 60 of which a first branch 61 is connected to the first gutter 51 and of which a second branch 62 is connected to the second gutter 52. These connections are such that they allow the flow of water from each of the gutters (51, 52) into a corresponding branch (61, 62). For example, the tube 70 is flexible at least in part. Alternatively or in addition, the first branch (61) and the second branch (62) are flexible. The adjective "flexible" means that the tube 70 or the branches (61, 62) are able to deform without breaking when the longitudinal bar 20 pivots relative to the posts 11. This flexibility is necessary since the tube 70 is fixed to a post 11 and is therefore fixed relative to the post 11 at least at its point(s) of attachment on the post 11 when the longitudinal bar 20 and the gutters (51, 52) pivot.Advantageously, the branches (61, 62) are as close as possible to the main axis A in order to minimize the stresses in these branches (61, 62) during rotations.
[0054] Alternatively, the upper end 73 extends into a funnel which is positioned such that water flowing from each of the gutters (51, 52) flows into this funnel.
[0055] Each of the tubes 70 is in fluid communication at its lower end 74 with a reservoir (not shown).
[0056] For example, the structure comprises a secondary pipe 80 into which each of the lower ends 74 opens, and the secondary pipe 80 opens into the tank. The secondary pipe 80 is visible in [Fig.2].
[0057] [Fig.4] illustrates an example of a collector 50, a tube 70, a primary pipe 60 with its two branches (61, 62) and a secondary pipe 80. [Fig.4] includes a first view (on the left) of these parts in a plane parallel to the vertical plane Z, and in a second view (on the right) of these parts in a plane perpendicular to the horizontal axis A. The upper end 73 of the tube 70 has two outlets, one of these outlets being connected to the first branch 61 and the other of these outlets being connected to the second branch 62.
[0058] The invention has been described above in the case where the collector 50 comprises two gutters (51, 52). Alternatively, the collector 50 comprises a single gutter (51, 52). We now describe the case where the collector 50 comprises only the first gutter 51. The description would be similar in the case where the collector comprises only the second gutter 52, by adapting the references and replacing “first” with “second”.
[0059] In the case where the collector 50 comprises only the first gutter 51, the water can only flow from the first panel 31 and / or the second panel 32 into the first gutter 51, depending on the position of the panels (31, 32) relative to the longitudinal bar 20 (overhanging or laterally) and depending on the position of the first gutter 51 relative to the longitudinal bar 20 (on the lateral face or along the upper face of the longitudinal bar 20). The first gutter 51 opens into one (respectively “several”) primary pipe(s) 60 which open into one (respectively “each into one of several”) tube(s) 70 fixed to one (respectively “each onto one of the”) post(s) 11, the (respectively “each of the”) tube(s) 70 opening into a secondary pipe 80.
[0060] In the case where the support 10 comprises elements other than posts 11, the tubes 70 are fixed to these elements.
[0061] A second embodiment of the invention is now described, with reference to [Fig.5].
[0062] In this second embodiment, the first row 31 and the second row 32 are positioned relative to each other to form an upwardly open V whose apex comprises the central edge 315 of the first row 31 and the central edge 325 of the second row 32. The rows (31, 32) form a secondary angle [3] between them. The first row 31 forms, by convention, an angle with the horizontal plane H which is the (primary) angle 0. The second row 32 then forms an angle with the horizontal plane H equal to {180° - [3 - 0}. This latter angle is for example equal to 0 if the first row 31 and the second row 32 are symmetrical with respect to the vertical plane Z
[0063] As in the first embodiment, the collector 50 comprises two parallel gutters (51, 52), the first 51 of these gutters extends along the main axis A in a vertical region including the space between the longitudinal bar 20 and the central edge 315 of the first row 31, the second 52 of these gutters extends along the main axis A in a vertical region including the space between the longitudinal bar 20 and the central edge 325 of the second row 32.
[0064] Alternatively, the collector 50 comprises a single gutter, which may be the first gutter 51 or the second gutter 52.
[0065] The central edge 315 of the first row 31 and the central edge 325 of the second row 32 each rest on the transverse bars 25. The transverse bars 25 are rigidly fixed to the longitudinal bar 20 and extend in the same plane.
[0066] For example, the crossbars 25 extend in a horizontal plane as illustrated in [Fig.5].
[0067] In a first case as an example, the first row 31, the second row 32 are positioned relative to the horizontal plane H by means of elements (91, 92) which are vertical pads of fixed length. One of the first two elements 91 extends between the distal edge 319 of the first row 31 and one of the crossbars 25 under the first row 31, the other of the first two elements 91 extends between the distal edge 319 of the first row 31 and the other of the crossbars 25 under the first row 31. Thus, the distal edge 319 of the first row 31 rests on these first two elements 91 which themselves rest on the crossbars 25. Similarly, one of the two second elements 92 extends between the distal edge 329 of the second row 32 and one of the crossbars 25 under the second panel 32, the other of the two second elements 92 extends between the distal edge 329 of the second row 32 and the other of the crossbars 25 under the second row 32.Thus, the distal edge 329 of the second row 32 rests on these two second elements 92 which themselves rest on the transverse bars 25.
[0068] In a second example case, the elements (91, 92) are vertical cylinders, and the structure comprises a pivoting mechanism which comprises these cylinders and a motor which is capable of actuating these cylinders. Thus, this pivoting mechanism is capable of pivoting each of the rows (31, 32) relative to the longitudinal bar 20 around their central edge (315, 325).
[0069] When the first elements (jacks) 91 extend, they push upwards the distal edge 319 of the first row 31 in order to position this row 31 at a certain angle with the horizontal plane H. When the second elements (jacks) 92 extend, they push upwards the distal edge 329 of the second row 32 in order to position this row 32 at a certain angle with the horizontal plane H. This situation is illustrated in [Fig.5], where each of the rows (31, 32) is positioned at an angle 0 with the horizontal plane H.
[0070] The assembly formed by the transverse bars 25, the panels (31, 32) and the elements (91, 92) is integral with the longitudinal bar 20.
[0071] In the second embodiment, the case where the transverse bars 25 extend in a horizontal plane has been described above and illustrated in [Fig.5].
[0072] Alternatively, the longitudinal bar 20 and therefore the assembly formed by the transverse bars 25, the panels (31, 32) and the elements (91, 92), can pivot by a tertiary angle δ around the main axis A relative to the horizontal plane H. In this case, given that the first row 31 forms (by convention) an angle δ with the horizontal plane H, the first row 31 forms with the transverse bars 25 which support the first row 31 an angle equal to {δ - δ}. This situation is shown in [Fig.6].
[0073] The support 10 is made up of a plurality of posts 11 parallel in the vertical plane Z and capable of being planted in the ground. Alternatively, the support 10 is made up of several other elements fixed in the ground. Alternatively, the support 10 is made up of elements (for example posts 11) which are fixed on one or more concrete blocks placed on the ground and capable of holding these elements in position. For example, this concrete block is a stringer (horizontal concrete beam). Alternatively, the support 10 is made up of a single post 11.
[0074] In the second embodiment, each of the gutters (51, 52) can be in sealed contact over its entire length with the longitudinal bar 20, for example as illustrated in [Fig.3].
[0075] In the second embodiment, the fluid communication between each of the gutters (51, 52) and the reservoir can be achieved by any suitable means. For example, this communication is achieved by tubes 70 fixed to the posts 11, primary pipes 60 with branches (61, 62) and a secondary pipe 80 which are configured as described in [Fig.4].
[0076] Alternatively, in all embodiments, the first gutter 51 is in fluid communication with a first primary pipe 60 and a first tube 70, and the second gutter 52 is in fluid communication with a second primary pipe and a second tube which are distinct from the first primary pipe 60 and the first tube 70. Each of these tubes is in fluid communication with the same secondary pipe 80 or with two distinct secondary pipes.
[0077] In all embodiments, each of the gutters (51, 52) is advantageously inclined in a vertical plane relative to the horizontal plane H so as to facilitate the flow of water by gravity in each of the gutters (51, 52) towards the reservoir. Note that the longitudinal bar 20 (therefore the main axis A) is not necessarily horizontal, therefore the inclination of the gutters (51, 52) is not defined in relation to the longitudinal bar 20 but in relation to the horizontal plane H. Thus, each of the gutters (51, 52) has its lowest points at the level of its junction with the element which transports the water towards the reservoir. In the exemplary embodiment of [Fig.4], each of the gutters (51, 52) has its highest point between two posts 11 and its lowest points at each of its ends, that is to say at its junctions with the branches (61, 62) of the primary pipes 60. For example, the highest point of each gutter (51, 52) is halfway between its ends.
[0078] Alternatively, each of the gutters (51, 52) is substantially horizontal.
Claims
Claims
1. A structure comprising a support (10) and a pair of rows of panels (31, 32) mounted on said support (10) such that a vertical plane (Z) lies between the first row (31) and the second row (32) of said pair, said first row (31) and said second row (32) each being pivotable about a main axis (A) located in said vertical plane (Z) to change its orientation relative to said vertical plane (Z), each of said rows (31, 32) having a central edge (315, 325) which extends along said main axis (A) and which is the edge of said row (31, 32) which is closest to said vertical plane (Z),said structure comprising a collector (50) which is located at least partially in a vertical slice which includes the space between said central edge (315) of the first row (31) and said central edge (325) of the second row (32) and which is capable of collecting the water flowing on the first row (31) and / or on the second row (32), said collector (50) comprising at least one gutter (51, 52), and characterized in that it comprises a longitudinal bar (20) which is mounted on this support (10) by a pivot connection and which extends along said main axis (A), said first row (31) and said second row (32) each being rigidly fixed on said longitudinal bar (20), said longitudinal bar (20) being capable of pivoting about the main axis (A) to change the orientation of said rows (31, 32) relative to said vertical plane (Z), said at least one gutter (51,52) extending into a space between said longitudinal bar (20) and said central edge (315) of the first row (31) or of the second row (32).,
2. Structure according to claim 1 such that it comprises a longitudinal bar (20) which is mounted on said support (10) by a pivot connection and which extends along said main axis (A), said first row (31) and said second row (32) each being rigidly fixed on said longitudinal bar (20), said longitudinal bar (20) being able to pivot around the main axis (A) to change the orientation of said rows (31, 32) relative to said vertical plane (Z).
3. Structure according to claim 2 such that said first row (31) and said second row (32) extend in the same main plane (P).
4. Structure according to claim 2 such that said first row (31) and said second row (32) are positioned relative to each other to form an upwardly open V whose apex comprises said central edge (315) of the first row (31) and said central edge (325) of the second row (32), the angle between said first row (31) and said second row (32) being a secondary angle (|3).
5. Structure according to any one of claims 1 to 4 such that said collector (50) comprises at least one gutter (51, 52) inclined relative to the horizontal so as to facilitate the flow of water by gravity in said at least one gutter (51, 52).
6. Structure according to claim 5 such that said collector (50) comprises a first gutter (51) and a second gutter (52).
7. Structure according to claim 6 such that the first (51) of said gutters extends in a space between said longitudinal bar (20) and said central edge (315) of the first row (31), the second (52) of said gutters extends in a space between said longitudinal bar (20) and said central edge (325) of the second row (32).
8. Structure according to claim 7 such that each of said gutters (51, 52) is in sealed contact over its entire length with said longitudinal bar (20).
9. Structure according to any one of claims 1 to 8 such that said support (10) consists of a plurality of posts (11) parallel in said vertical plane (Z) and capable of being held on the ground.
10. Structure according to claim 1 to 9 such that it comprises a plurality of tubes (70), each of said tubes (70) being in fluid communication at its upper end (73) with each of said at least one gutter (51, 52) and in fluid communication at its lower end (74) with a reservoir.