A floating photovoltaic structure

Abstract

This application relates to the field of photovoltaic technology and discloses a floating photovoltaic structure, including multiple floats with different outer diameters and photovoltaic panels mounted on the floats. The floats are in a ring-shaped structure and nested within each other, with the centers of the multiple floats coinciding. It also includes a first limiting ring and a second limiting ring. All floats are located within the first limiting ring, and the second limiting ring is located within the float with the smallest outer diameter. The floats and the first limiting ring are concentric, and a connecting member is provided between the floats and the first limiting ring. The application also includes a fixing assembly for fixing the floats, which includes a tripod and a mounting frame. Each float has a tripod, and each triangle of the tripod has a first connection point. The mounting frame has a second connection point, and each first connection point is connected to two adjacent second connection points by a fixing rope. The first limiting ring is rigidly connected to the mounting frame. This application allows for faster fixing of floats when there are many floats.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a floating photovoltaic structure. Background Technology

[0002] Solar photovoltaic power generation, as a renewable energy source, has always been a hot topic in energy development and research. Traditional onshore solar photovoltaic power generation requires a large land area. In order to conserve land resources, floating photovoltaic systems have now been developed, which can be installed in rivers, lakes, or at sea.

[0003] Floating photovoltaic systems consist of a float and photovoltaic panels mounted on it. The float is anchored to the riverbed, lakebed, or seabed via an anchoring structure. To reduce the impact of wind and waves on the float, it is typically composed of several interconnected panels. When installed at sea, floating photovoltaic systems cover a large area and require numerous floats. To ensure stable floating on the sea surface, some floats are secured to the seabed using anchoring structures.

[0004] Regarding the aforementioned technologies, the inventors discovered that the more buoys there are, the more fixed points are needed to ensure that the buoys float stably on the water surface within a specific range. Summary of the Invention

[0005] To more quickly fix the floating body, this application provides a floating photovoltaic structure.

[0006] This application provides a floating photovoltaic structure, which adopts the following technical solution:

[0007] A floating photovoltaic structure includes multiple floats with different outer diameters and photovoltaic cells mounted on the floats. The floats are in a ring structure and are nested inside each other. The centers of the multiple floats coincide. The structure also includes a first limiting ring and a second limiting ring. All the floats are located within the first limiting ring. The second limiting ring is located within the float with the smallest outer diameter. The floats and the first limiting ring are concentric. A connecting member is provided between the floats and the first limiting ring.

[0008] It also includes a fixing assembly for fixing the float, the fixing assembly including a tripod and a mounting frame, each float having a tripod, each triangle of the tripod being provided with a first connection point, the mounting frame being provided with a second connection point, the number of the second connection points corresponding to the number of the first connection points, the first connection points and the second connection points not being in the same vertical direction, the first connection point being connected to two adjacent second connection points by a fixing rope, and the first limiting ring being rigidly connected to the mounting frame.

[0009] By adopting the above technical solution, multiple floats and the first limiting ring are concentric, and a connecting piece connects the floats and the first limiting ring. Therefore, multiple floats can be indirectly connected through the second limiting ring. When installing the ring-shaped floats on land, the second limiting ring can be used as a reference point for installation, and the positions of multiple floats can be quickly determined. After the photovoltaic system is installed, multiple floats can be hoisted into the water at once.

[0010] Before launching the float and photovoltaic system, install the mounting frame on the bottom of the water. When installing the float, ensure that the first and second connection points of the tripod are not in the same vertical direction. When the first connection point is connected to two adjacent second connection points by fixing ropes, the fixing ropes of the two first and second connection points and one side of the tripod form a stable triangular structure. Although there are only three first connection points on a float, the connection between the three first and second connection points forms multiple stable triangular structures, which makes the installation of each float simpler, increases the installation speed of the float, and also improves the stability of the float after installation.

[0011] The first limiting ring is rigidly connected to the mounting bracket, so the first limiting ring will not float on the water due to wind and waves. The first limiting ring can limit the floating range of multiple floats.

[0012] Optionally, the float includes a ring-shaped support and multiple floats, with the tripod fixedly mounted on the support; the support is provided with fixing blocks, which are spaced apart along the circumference of the support, and a float is installed between two adjacent fixing blocks, with the floats movably connected to the fixing blocks.

[0013] By adopting the above technical solution, the float is composed of multiple float blocks spliced ​​together. If a certain section of the float block is exposed to wind and waves, the impact on other float blocks can be reduced. When the float block closest to the first limiting ring is exposed to wind and waves, some float blocks may come into contact with the first limiting ring, but the impact on other float blocks can also be reduced, thus reducing the influence between the float blocks exposed to wind and waves and the float blocks not exposed to wind and waves.

[0014] Optionally, an energy dissipation element is installed on the outer arc surface of the float, and the energy dissipation element is close to another float.

[0015] By adopting the above technical solution, when a float with a smaller outer diameter is subjected to strong winds and waves, it will undergo a certain displacement. The float will always maintain a safe distance from the adjacent float through the energy dissipation component. When the energy dissipation component hits another float, the other float can play a buffering role.

[0016] Optionally, one end of the energy dissipation element is located between the two floats of the other float.

[0017] By adopting the above technical solution, the energy dissipation component on one float is located between the two floats of another float. When the energy dissipation component hits the other float, it can strike the fixed block between the two floats. The entire support can play a buffering role. The entire support is relatively heavy and can have a good buffering effect.

[0018] Optionally, when the energy dissipation element strikes another of the floats, the energy dissipation element comes into contact with both of the floats.

[0019] By adopting the above technical solution, if the float with a smaller outer diameter is subjected to strong winds and waves, the two floats will swing less when the energy dissipation component strikes them. If the two floats swing more, the energy dissipation component on the two floats can strike four floats, and the winds and waves on the float with a smaller outer diameter can be canceled out layer by layer, so that the overall displacement position of the float with a smaller outer diameter changes less. If the float with the largest outer diameter is subjected to overall displacement, the floats can also contact the energy dissipation component on the float with a smaller outer diameter. In addition, the first limiting ring can also limit the floats, so that the overall displacement of the float with a larger outer diameter is also small.

[0020] Optionally, a support frame is installed between the float and the energy dissipation component. The support frame includes a support base and a connecting base. The support base is fixedly installed on the float and the energy dissipation component, and the connecting base is rotatably installed on the support base. The support base is provided with a fixing member for fixing the rotatable base.

[0021] By adopting the above technical solution, the photovoltaic system is installed on the support frame. The energy dissipation component can not only trigger the energy dissipation function, but also support the photovoltaic system. Since the floating body is arranged in a ring shape, the distribution principle of the photovoltaic system is to cover as much as possible. Therefore, the specific position of the photovoltaic system can be determined by rotating the connecting seat. Once the position of the photovoltaic system is determined, it is fixed with a fixing component.

[0022] Optionally, a limiting groove is formed on the first limiting ring, and a limiting rod is installed on the float with the largest outer diameter, with one end of the limiting rod located in the limiting groove.

[0023] By adopting the above technical solution, one end of the limiting rod is located in the limiting groove, and the first limiting ring can not only limit the planar displacement amplitude of the float, but also limit the vertical displacement amplitude of the float.

[0024] Optionally, the tripod is connected to the support via a vertical rod, a maintenance foot pedal is installed between the tripod and the support, an anchor chain is connected between the maintenance foot pedal and the first limiting ring, and a float is connected to the end of the maintenance foot pedal away from the first limiting ring via the anchor chain, the float being located inside the second limiting ring.

[0025] By adopting the above technical solution, the maintenance foot pedal is installed between the first limit ring and the float via an anchor chain. The maintenance foot pedal floats in the sea and can be stepped on by maintenance personnel for convenient subsequent maintenance.

[0026] Optionally, the connector is a connecting rope, which is located below the float.

[0027] By adopting the above technical solution, after multiple floats are connected to the second limiting ring by connecting ropes, when multiple floats are still on land, the connecting ropes can limit the movement of other floats. In particular, the float in the middle will have its range of movement restricted by the adjacent floats. When the float with the largest outer diameter is lifted, the other floats will abut against the connecting ropes, and the multiple floats will be lifted as a whole.

[0028] In summary, this application includes at least one of the following beneficial effects:

[0029] 1. Multiple floats share the same center point, allowing for quick positioning and easy control of the spacing between them. This also reduces the number of anchor points required when the floats are installed on the water surface, enabling them to be installed more quickly.

[0030] 2. Regardless of the size of the floating body, it only has three first connection points. After the first connection point and the second connection point are connected, a stable triangular structure can be formed between the first connection point, the second connection point and the tripod, thereby increasing the stability of the entire photovoltaic system on the water surface.

[0031] 3. The floats of the same floating body are independent of each other and can withstand wind and waves well. When the wind and waves are large, the adjacent floating bodies can buffer each other, so that the floating body can stably support the photovoltaic system when it is subjected to wind and waves. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0033] Figure 2 This is a schematic diagram showing the installation relationship between the float and the tripod in an embodiment of this application;

[0034] Figure 3 This is a bottom view illustrating the relationship between multiple floating bodies in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram illustrating the structure of a floating body according to an embodiment of this application;

[0036] Figure 5 yes Figure 3 Enlarged view of point A;

[0037] Figure 6 This is a schematic diagram illustrating the insertion of the energy dissipation rod between the two floats in an embodiment of this application;

[0038] Figure 7 This is a schematic diagram illustrating the connection relationship between the float and the first limiting ring in an embodiment of this application;

[0039] Figure 8 This is a schematic diagram of the support frame according to an embodiment of this application;

[0040] Figure 9 This is a schematic diagram showing the maintenance pedals distributed circumferentially along the first limiting ring according to an embodiment of this application;

[0041] Figure 10 This is a schematic diagram of the maintenance pedal located between the tripod and the bracket according to an embodiment of this application;

[0042] Figure 11 This is a schematic diagram of the structure of the spliced ​​maintenance pedal in the embodiment of this application.

[0043] Explanation of reference numerals in the attached drawings: 1. Float; 11. Bracket; 12. Buoy; 13. Fixing block; 14. Limiting rod; 2. Photovoltaic; 3. Tripod; 31. First connection point; 4. Mounting frame; 40. Steel rod; 41. Second connection point; 5. Fixing rope; 6. First limiting ring; 61. Limiting groove; 7. Second limiting ring; 8. Connecting rope; 9. Energy dissipation rod; 10. Support frame; 101. Support seat; 102. Connecting seat; 103. Support rod; 104. Screw; 105. Nut; 20. Inspection pedal; 201. Anchor chain; 202. Splicing plate; 30. Float. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0045] This application discloses a floating photovoltaic structure. (Refer to...) Figure 1 and Figure 2A floating photovoltaic structure includes multiple floats 1 with different outer diameters and photovoltaic cells 2 mounted on the floats 1. The floats 1 are in a ring shape, and the multiple floats 1 are nested together around the same center. It also includes a fixing assembly for securing the floats 1, comprising a tripod 3 and a mounting frame 4. The tripod 3 is mounted on the lower surface of the float 1 via a vertical rod, with a gap between the tripod 3 and the float 1. The mounting frame 4 is fixed to a riverbed, lakebed, or seabed by a fixed anchor (not shown in the figure). Each of the triangular points of the tripod 3 has a first connection point 31, and the mounting frame 4 has a second connection point 41 corresponding to the first connection point 31. When the first connection point 31 and the second connection point 41 are connected, they are not in the same vertical direction. Each second connection point 41 is connected to two adjacent first connection points 31 by a fixing rope 5, and the two fixing ropes 5 and one side of the tripod 3 form a stable triangular structure. The outer diameter of the annular float 1 varies, but a float 1 can be stably installed on the water using only three fixed points.

[0046] Reference Figure 1 This application only illustrates three floats 1, tripods 3 and floats 1 correspond one-to-one, and the mounting frame 4 includes three mounting rods. The number of second connection points 41 distributed on one mounting rod is the same as the number of floats 1. Multiple tripods 3 are all installed on the same mounting frame 4 by fixing ropes 5.

[0047] The floating photovoltaic structure 2 also includes a first limiting ring 6 and a second limiting ring 7 concentrically arranged, with the outer diameter of the first limiting ring 6 being larger than that of the second limiting ring 7. The first limiting ring 6 is rigidly connected to the mounting frame 4 via a steel rod 40. All floats 1 are located within the first limiting ring 6, with the inner ring of the first limiting ring 6 closest to the float 1 with the largest outer diameter, and the second limiting ring 7 located within the float 1 with the smallest outer diameter. The floats 1 and the second limiting ring 7 are concentric, and a connecting member is provided between the floats 1 and the first limiting ring 6.

[0048] The setting of the first limiting ring 6 can strictly control the position of the floating photovoltaic 2, so that the installation position of the floating photovoltaic 2 will not affect the living environment of marine life.

[0049] Furthermore, refer to Figure 3The connecting element is a connecting rope 8. Each float 1 is connected to the second limiting ring 7 by at least two connecting ropes 8. Floats 1 with larger outer diameters can have more connecting ropes 8. The connecting ropes 8 are located below the floats 1. Multiple floats 1 are fixedly connected to the second limiting ring 7 via the connecting ropes 8, indirectly forming a single integrated structure. When multiple floats 1 are still on land, the float 1 with the largest outer diameter can be lifted, and the other floats 1 will also be lifted. The connecting ropes 8 also provide some limiting effect on the floats 1, especially the middle float 1. When the middle float 1 moves up and down on the water surface, it will contact the connecting ropes 8 of the outer floats 1, and the connecting ropes 8 will contact the floats 1 with smaller outer diameters.

[0050] Furthermore, refer to Figure 4 The float 1 includes a support 11 and multiple floats 12 movably mounted on the support 11. The support 11 is made of steel and has a ring-shaped structure. The tripod 3 is mounted on the lower end face of the support 11. Figure 4 (Not shown). The connecting rope 8 is close to the lower surface of the support 11 and does not interfere with the tripod 3. The support 11 is provided with fixed blocks 13, which are spaced apart around the circumference of the support 11. A float 12 is installed between two adjacent fixed blocks 13. The float 12 and the fixed blocks 13 are movably connected. The float 12 and the fixed blocks 13 can be connected by an anchor chain, so that the float 12 can float freely on the water surface with the waves for a small range.

[0051] Furthermore, refer to Figure 5 Energy dissipation components, specifically energy dissipation rods 9, are installed on the outer arc surface of the float 12. The end of the energy dissipation rod 9 furthest from the float 12 is close to another float 1. In calm conditions, there is a gap between the energy dissipation rod 9 and the other float 1. The distance between the photovoltaic cells 2 of adjacent floats 1 is much greater than the distance between the energy dissipation rod 9 and the float 1. When the float 1 is subjected to wind and waves, if the float 1 shifts as a whole, some of the energy dissipation rods 9 will impact the other float 1, providing a buffer. Each float 12 has energy dissipation rods 9, and multiple energy dissipation rods 9 can be installed on one float 12. Therefore, the annular float 1 can withstand wind and waves from all directions and achieve a good buffering effect.

[0052] Regarding the placement of the energy dissipation components, the width of the energy dissipation rod 9 can be greater than the distance between the two floats 12. When a float 1 is subjected to relatively severe wind and waves, and the float 1 shifts towards the float 1 with a larger outer diameter, part of the energy dissipation rod 9 can simultaneously contact the two floats 12 of the other float 1. The two floats 12 act as a buffer for the energy dissipation rod 9. When the two floats 12 are also subjected to a large impact, the energy dissipation rod 9 on the two floats 12 can strike the four floats 12 of the other float 1 with a larger outer diameter. The four floats 12 can continue to act as a buffer, thereby gradually offsetting the wind and waves received by the float 1, so that the overall shift position of the float 1 with a smaller outer diameter changes less.

[0053] If the float 1 with the largest outer diameter is affected by wind and waves and shifts as a whole towards the float 1 with the smaller outer diameter, the float block 12 can also contact the energy dissipation component on the float 1 with the smaller outer diameter, and the float with the smaller outer diameter has a buffering effect. When the float 1 with the largest outer diameter is affected by wind and waves and shifts as a whole towards the direction of the first limiting ring 6, the first limiting ring 6 can also limit the float block 12, which makes the overall shift of the float 1 with the larger outer diameter smaller.

[0054] Furthermore, refer to Figure 6 In terms of energy dissipation, the energy dissipation rod 9 can be located between the two floats 12 of another float 1. When the sea is calm, the energy dissipation rod 9 is positioned between the two floats 12 and does not contact the floats 12 or the fixing block 13 between them, thus reducing the distance between the floats 1. When the float 1 is subjected to wind and waves, during the overall displacement of the float 1, part of the energy dissipation rod 9 impacts the fixing block 13 of the other float 1, and the entire support 11 can act as a buffer. The support 11 has a certain weight and will not easily sway when impacted. The floats 12 are movably mounted on the support 11, so the swaying of the support 11 does not easily affect the floats 12.

[0055] Furthermore, refer to Figure 7 A limiting groove 61 is formed on the first limiting ring 6, and a limiting rod 14 is installed on the float 1 with the largest outer diameter. The limiting rods 14 are spaced apart along the circumferential direction of the bracket 11, and one end of the limiting rod 14 is located in the limiting groove 61. The limiting rods 14 do not contact the inner wall of the limiting groove 61, and the limiting rods 14 have gaps in the upper, lower, left, and right sides of the limiting groove 61. Therefore, the limiting rods 14 can limit the vertical displacement of the float 1 with the largest outer diameter, thereby limiting the vertical floating range of multiple floats 1.

[0056] Furthermore, refer to Figure 8 A support frame 10 is installed between the float 12 and the energy dissipation rod 9. The support frame 10 includes a support base 101 and a connecting base 102. The support base 101 is fixedly installed on the float 12 and the energy dissipation rod 9. The connecting base 102 is rotatably installed on the support base 101, and the support base 101 is provided with a fixing member for fixing the connecting base 102. A support rod 103 for supporting the photovoltaic panel 2 is installed on the connecting base 102. The fixing member is a screw 104. One end of the screw 104 is fixedly installed on the support base 101, and the other end of the screw 104 is screwed with a nut 105. The nut 105 abuts against the upper surface of the connecting base 102. The rotation center of the connecting base 102 and the central axis of the screw 104 are parallel to each other. After the photovoltaic panel 2 is installed on the connecting base 102, the position of the photovoltaic panel 2 can be adjusted arbitrarily so that the photovoltaic panels 2 on the float 1 can be distributed as compactly as possible.

[0057] Furthermore, refer to Figure 9 and Figure 10A maintenance foot pedal 20 is connected to the first limiting ring 6. The maintenance foot pedals 20 are fan-shaped and spaced apart circumferentially along the first limiting ring 6. The maintenance foot pedal 20 has a hollow section to dissipate waves. At least two anchor chains 201 connect the maintenance foot pedal 20 and the first limiting ring 6. A floating plate 30 is connected to the end of the maintenance foot pedal 20 away from the first limiting ring 6. The floating plate 30 is located inside the second limiting ring 7, and its outer diameter is smaller than the inner diameter of the second limiting ring 7. Equipment such as distribution boxes for photovoltaic power stations can be placed on the floating plate 30. The floating plate 30 can also serve as a transition platform between two maintenance foot pedals 20. Two anchor chains 201 also connect the maintenance foot pedal 20 and the floating plate 30. The multiple maintenance foot pedals 20 are arranged in a circumferential array, making it convenient for maintenance personnel to inspect any photovoltaic unit 2. The maintenance foot pedal 20 is located between the tripod 3 and the support 11. A vertical rod is also connected to the lower surface of the first limiting ring 6, and one end of the anchor chain 201 is fixed to the vertical rod. The maintenance foot pedal 20 is made of plastic and floats in the sea.

[0058] Reference Figure 11 The maintenance foot pedal 20 can be composed of multiple splicing blocks 202, which are also distributed in a fan-shaped structure. Adjacent splicing blocks 202 are connected by anchor chains 201 or ropes. In this embodiment, two splicing blocks 202 are connected by anchor chains 201, and at least two anchor chains 201 connect adjacent splicing blocks 202. The splicing blocks 202 also have hollowed-out sections, which can also serve to dampen waves.

[0059] It should be noted that the materials used in floating photovoltaic structures all have corrosion-resistant coatings, making them well-suited for seawater.

[0060] The implementation principle of a floating photovoltaic structure in this application embodiment is as follows:

[0061] Although each float 1 has only three first connection points 31, the three first connection points 31 and the three second connection points 41 can form multiple stable triangular structures through the fixing ropes 5, so that even when there are many floats 1, they can float stably on the water surface; the multiple floats 12 are independent of each other, and some floats 12 have larger fluctuations, but this will not affect other floats 12; if the float 1 with a smaller outer diameter is subjected to strong winds and waves, when the energy dissipation component of the float 12 with larger fluctuations hits two floats 12, the two floats 12 will... The overall sway amplitude can be reduced. If the sway amplitude of the two floats 12 is large, the energy dissipation components on the two floats 12 can strike the four floats 12. The wind and waves on the float 1 with the smaller outer diameter can be offset layer by layer, so that the overall displacement position of the float 1 with the smaller outer diameter changes less. If the float 1 with the largest outer diameter is displaced as a whole, the floats 12 can also contact the energy dissipation components on the float 1 with the smaller outer diameter. In addition, the first limiting ring 6 can also limit the floats 12, so that the overall displacement of the float 1 with the larger outer diameter is also small.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A floating photovoltaic structure, characterized in that: It includes multiple floats (1) with different outer diameters and photovoltaic (2) installed on the floats (1). The floats (1) are in a ring structure and are nested together. The centers of the multiple floats (1) coincide. It also includes a first limiting ring (6) and a second limiting ring (7). All the floats (1) are located inside the first limiting ring (6). The second limiting ring (7) is located inside the float (1) with the smallest outer diameter. The floats (1) and the first limiting ring (6) are concentric. A connecting member is provided between the floats (1) and the first limiting ring (6). It also includes a fixing component for fixing the float (1), the fixing component includes a tripod (3) and a mounting frame (4), each float (1) has a tripod (3), each triangle of the tripod (3) is provided with a first connection point (31), the mounting frame (4) is provided with a second connection point (41), the number of the second connection points (41) corresponds to the number of the first connection points (31), the first connection points (31) and the second connection points (41) are not in the same vertical direction, the first connection point (31) is connected to the two adjacent second connection points (41) by a fixing rope (5), and the first limiting ring (6) is rigidly connected to the mounting frame (4); The float (1) includes a ring-shaped support (11) and a plurality of floats (12). The tripod (3) is fixedly installed on the support (11). The support (11) is provided with a fixing block (13). The fixing blocks (13) are spaced apart along the circumference of the support (11). A float (12) is installed between two adjacent fixing blocks (13). The float (12) and the fixing block (13) are movably connected. An energy dissipation component is installed on the outer arc surface of the float (12), and the energy dissipation component is close to another float (1); A support frame (10) is installed between the float (12) and the energy dissipation component. The support frame (10) includes a support base (101) and a connecting base (102). The support base (101) is fixedly installed on the float (12) and the energy dissipation component. The connecting base (102) is rotatably installed on the support base (101). The support base (101) is provided with a fixing member for fixing the connecting base (102).

2. The floating photovoltaic structure according to claim 1, characterized in that: One end of an energy dissipation element is located between the two floats (12) of the other float (1).

3. A floating photovoltaic structure according to claim 1, characterized in that: When the energy dissipation element strikes another of the floats (1), the energy dissipation element comes into contact with the two floats (12).

4. A floating photovoltaic structure according to claim 1, characterized in that: A limiting groove (61) is provided on the first limiting ring (6), and a limiting rod (14) is installed on the float (1) with the largest outer diameter. One end of the limiting rod (14) is located in the limiting groove (61).

5. A floating photovoltaic structure according to claim 1, characterized in that: The tripod (3) is connected to the support (11) via a vertical rod. A maintenance foot pedal (20) is installed between the tripod (3) and the support (11). An anchor chain (201) is connected between the maintenance foot pedal (20) and the first limiting ring (6). A float (30) is connected to the end of the maintenance foot pedal (20) away from the first limiting ring (6) via the anchor chain (201). The float (30) is located inside the second limiting ring (7).

6. A floating photovoltaic structure according to claim 1, characterized in that: The connector is a connecting rope (8), which is located below the float (1).

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