Water surface photovoltaic system

Abstract

The invention, which relates to the photovoltaic technology field, discloses a water surface photovoltaic system comprising an operation and maintenance floating body, a supporting floating body and a photovoltaic assembly. The number of the operation and maintenance floating bodies is at least two, and the two operation and maintenance floating bodies are arranged in parallel. The supporting floating bodies are connected between every two adjacent operation and maintenance floating bodies, and the number of the supporting floating bodies is at least two. The photovoltaic assembly comprises a photovoltaic panel and a support assembly, and the photovoltaic panel is supported on the two adjacent supporting floating bodies through the support assembly. According to the water surface photovoltaic system provided by the invention, the at least two supporting floating bodies are connected between the two adjacent operation and maintenance floating bodies, and the photovoltaic panel is supported on the supporting floating bodies through the bracket assemblies, so that the supporting floating bodies provide buoyancy for the photovoltaic assemblies, and therefore, the photovoltaic panel can be always away from the water surface under the action of an external load for a long time; and the reliability of the water surface photovoltaic system is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and more specifically, to a water surface photovoltaic system. Background Art

[0002] Traditional surface photovoltaic systems typically utilize a combination of poles and floats, primarily connecting the floats in series via galvanized metal poles or aluminum alloy components. Lug connections between the floats serve only as a supplementary connection, while the photovoltaic modules are mounted on the metal poles. However, because the poles supporting the photovoltaic modules are generally parallel to the water surface, they can be subject to deflection and even direct contact with the water under forces such as gravity and wind loads, leading to corrosion and significant risks to the strength of the supporting poles, resulting in lower reliability of the surface photovoltaic system.

[0003] Therefore, how to improve the reliability of water surface photovoltaic systems has become a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a water surface photovoltaic system to improve the reliability of the water surface photovoltaic system.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A water surface photovoltaic system, comprising:

[0007] An operation and maintenance floating body, wherein the operation and maintenance floating body comprises at least two, and the two operation and maintenance floating bodies are arranged in parallel;

[0008] A supporting float, wherein the supporting float is connected between two adjacent operation and maintenance floats, and the supporting float includes at least two;

[0009] A photovoltaic assembly comprises a photovoltaic panel and a support assembly, wherein the photovoltaic panel is supported on two adjacent supporting floats through the support assembly.

[0010] Optionally, in the above-mentioned water surface photovoltaic system, the supporting float includes a first supporting platform, a second supporting platform and a connecting float, there are two first supporting platforms, and the two first supporting platforms are respectively located on both sides of the second supporting platform, and the connecting float is used to connect the second supporting platform and the first supporting platforms located on both sides of the second supporting platform.

[0011] Optionally, in the above-mentioned water surface photovoltaic system, the width of the connecting float is not greater than the width of the first supporting buoy and the second supporting buoy; and / or,

[0012] The width of the first supporting platform is not greater than the width of the second supporting platform.

[0013] Optionally, in the above-mentioned water surface photovoltaic system, the photovoltaic panels include at least two, and the photovoltaic panels include a first photovoltaic panel and a second photovoltaic panel arranged adjacent to the first photovoltaic panel, and the photovoltaic panels have a first long side and a second long side arranged opposite to each other;

[0014] The bracket assembly includes a first bracket, a second bracket and a third bracket, the first bracket and the third bracket are respectively arranged on the first supporting platform, the first bracket is used to support the first long side of the first photovoltaic panel, the third bracket is used to support the second long side of the second photovoltaic panel, the second bracket is arranged on the second supporting platform, and the second bracket is used to support the second long side of the first photovoltaic panel and the first long side of the second photovoltaic panel.

[0015] Optionally, in the above-mentioned water surface photovoltaic system, the first supporting platform has a first supporting surface and a first mounting surface that are oppositely arranged, the first bracket and the third bracket are respectively mounted on the first supporting surfaces of the two first supporting platforms by first fasteners, and the first mounting surface of the first supporting platform is provided with a first operating hole for locking the first fastener;

[0016] The second supporting platform has a second supporting surface and a second mounting surface arranged opposite to each other. The second bracket is mounted on the second supporting surface of the second supporting platform through a second fastener, and the second mounting surface of the second supporting platform is provided with a second operating hole for locking the second fastener.

[0017] Optionally, in the above-mentioned water surface photovoltaic system, the first mounting surface is an arc-shaped section.

[0018] Optionally, in the above-mentioned water surface photovoltaic system, the heights of the first bracket, the second bracket and the third bracket are sequentially reduced so that the light-receiving surface of the photovoltaic panel is inclined.

[0019] Optionally, in the above-mentioned surface photovoltaic system, the bracket assembly has a first connecting surface and a second connecting surface that are relatively arranged, the first connecting surface is used to connect to the supporting float, the second connecting surface is used to connect to the photovoltaic panel, and the second connecting surface is an inclined surface that fits the photovoltaic panel.

[0020] Optionally, in the above-mentioned water surface photovoltaic system, both ends of the supporting float are provided with lugs for connecting with the operation and maintenance float, and the operation and maintenance float is provided with connecting plates connected with the lugs.

[0021] Optionally, in the above-mentioned water surface photovoltaic system, an avoidance space for avoiding the ear portion is provided at the connection plate position of the operation and maintenance float.

[0022] The surface photovoltaic system provided in the present application connects at least two supporting floats between two adjacent operation and maintenance floats, and supports the photovoltaic panels on the supporting floats through a bracket assembly, so that the supporting floats provide buoyancy for the photovoltaic panels, thereby ensuring that the photovoltaic panels are always away from the water surface under long-term external loads, thereby improving the reliability of the surface photovoltaic system.

[0023] The technical features mentioned above, the technical features described below, and the technical features shown individually in the accompanying drawings may be combined arbitrarily, as long as the combined technical features do not conflict with each other. All possible feature combinations are technical contents explicitly described in this document. Any of the multiple sub-features included in the same statement can be applied independently and does not necessarily have to be applied in conjunction with the other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0025] Figure 1 A partial schematic diagram of a water surface photovoltaic system provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the assembly of the bracket assembly provided in an embodiment of the present application;

[0027] Figure 3 Schematic diagram of the assembly of the operation and maintenance float and the support float provided in an embodiment of the present application;

[0028] Figure 4 A partial schematic diagram of the assembly of the operation and maintenance float and the support float provided in an embodiment of the present application;

[0029] Figure 5 Schematic diagram of the installation of the bracket assembly and the supporting float provided in an embodiment of the present application.

[0030] Among them, 100 is the operation and maintenance float, 101 is the connecting plate, and 102 is the avoidance space;

[0031] 200 is a supporting float, 201 is a first supporting platform, 2011 is a first supporting surface, 2012 is a first mounting surface, 2013 is a first operating hole, 202 is a second supporting platform, 2021 is a second supporting surface, 2022 is a second mounting surface, 2023 is a second operating hole, 203 is a connecting float, and 204 is a lifting ear.

[0032] 300 is a photovoltaic component, 301 is a photovoltaic panel, 3011 is a first photovoltaic panel, 3012 is a second photovoltaic panel, 3013 is a first long side, 3014 is a second long side, 302 is a bracket assembly, 3021 is a first bracket, 3022 is a second bracket, 3023 is a third bracket, 3024 is a first connecting surface, and 3025 is a second connecting surface. DETAILED DESCRIPTION

[0033] The core of this application is to provide a water surface photovoltaic system to improve the reliability of the water surface photovoltaic system.

[0034] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] Floating photovoltaic systems can be categorized into two types based on their construction method: pile-driven and floating. In shallow waters (less than 3 meters), fixed piling and fixed support systems, or pile-driven and floating, are generally used. In deeper waters (3 to 10 meters), floating designs are typically employed. Floating photovoltaic systems typically utilize specially designed support systems to ensure stable floating on the water surface, adapting to changes in the water environment, such as waves and currents, while also ensuring the stability and safety of the photovoltaic panels.

[0036] Traditional floating surface photovoltaic systems typically utilize a combination of poles and pontoons. The pontoons are primarily connected in series via galvanized metal poles or aluminum alloy components, with lug connections between the pontoons serving only as a supplementary connection. The photovoltaic modules are mounted on the metal poles. However, because the poles supporting the PV modules are typically parallel to the water surface, they can deflect under forces such as gravity and wind loads, and even come into direct contact with the water. This can lead to corrosion and significant risks to the strength of the supporting poles, resulting in lower reliability for the surface photovoltaic system.

[0037] For this reason, Figure 1 As shown, the embodiments of the present application disclose a water surface photovoltaic system, comprising an operation and maintenance float 100, a support float 200, and a photovoltaic module 300. By connecting at least two support floats 200 between two adjacent operation and maintenance floats 100, and supporting photovoltaic panels 301 on the support floats 200 via bracket assemblies 302, the support floats 200 provide buoyancy for the photovoltaic modules 300, thereby ensuring that the photovoltaic panels 301 remain away from the water surface under long-term external loads, thereby improving the reliability of the water surface photovoltaic system.

[0038] The following will be combined Figures 1 to 5 The water surface photovoltaic system disclosed in the embodiments of the present application is specifically explained and illustrated.

[0039] Among them, Figure 1 and Figure 2 As shown, the operation and maintenance floating body 100 includes at least two, and the operation and maintenance floating body 100 can adopt a similar rectangular parallelepiped structure, and the cross section of the operation and maintenance floating body 100 is rectangular to ensure that the maximum area of ​​the operation and maintenance floating body 100 is in contact with the water surface, that is, the long side of the cross section faces downward ( Figure 1 The operation and maintenance floats 100 are arranged in parallel along the long sides, that is, the operation and maintenance floats 100 can be arranged in two, three, four or more rows along the long sides, and each row of operation and maintenance floats 100 can be one, two or more, which is not limited in this article. At the same time, the support floats 200 are connected between two adjacent parallel operation and maintenance floats 100, and the support floats 200 include at least two to support the photovoltaic modules 300. The support floats 200 can be, but are not limited to, two, or three, four or more. When the number of support floats 200 is an odd number, such as three, the photovoltaic modules 300 in two adjacent rows can share the support float 200 in the middle, thereby reducing the number of support floats 200 and reducing costs.

[0040] In order to facilitate the connection between the supporting buoy 200 and the operation and maintenance buoy 100, in some embodiments, as Figures 2 to 4 As shown, both ends of the support buoy 200 are provided with lugs 204 connected to the operation and maintenance buoy 100. At the same time, a connecting plate 101 connected to the lugs 204 is provided on the operation and maintenance buoy 100, so that the lugs 204 of the support buoy 200 can be extended above the connecting plate 101 of the operation and maintenance buoy 100 and connected and fixed by fasteners such as bolts. At the same time, to facilitate the connection between the connecting plate 101 of the operation and maintenance buoy 100 and the lugs 204 of the support buoy 200, a clearance space 102 is provided at the location of the connecting plate 101 of the operation and maintenance buoy 100 to avoid the lugs 204, so that the lugs 204 of the support buoy 200 can be extended above the connecting plate 101 of the operation and maintenance buoy 100 and connected and fixed by fasteners.

[0041] like Figure 1 As shown, the photovoltaic assembly 300 includes a photovoltaic panel 301 and a bracket assembly 302. The photovoltaic panel 301 can be supported on two adjacent supporting floats 200 through the bracket assembly 302, so that the supporting floats 200 provide buoyancy for the photovoltaic assembly 300, thereby ensuring that the photovoltaic panel 301 is always away from the water surface under the action of long-term external loads, effectively avoiding the influence of water surface fluctuations on the power generation efficiency of the photovoltaic panel 301, and improving the reliability of the water surface photovoltaic system.

[0042] In some embodiments, as Figure 3 As shown, the supporting buoy 200 includes a first supporting platform 201, a second supporting platform 202, and a connecting buoy 203. There are two first supporting platforms 201, and the two first supporting platforms 201 are located on both sides of the second supporting platform 202. At the same time, the second supporting platform 202 is connected to the two first supporting platforms 201 through the connecting buoy 203.

[0043] In some embodiments, as Figure 1 As shown, the photovoltaic panels 301 include at least two, and the two photovoltaic panels 301 are adjacently arranged. For ease of understanding, the two photovoltaic panels 301 are defined as a first photovoltaic panel 3011 and a second photovoltaic panel 3012, respectively, and the photovoltaic panels 301 have a first long side 3013 and a second long side 3014 arranged opposite to each other. Figure 1 and Figure 2 As shown, the bracket assembly 302 includes a first bracket 3021, a second bracket 3022 and a third bracket 3023, and the first bracket 3021 and the third bracket 3023 are respectively arranged on the first supporting platform 201, so that the first long side 3013 of the first photovoltaic panel 3011 can be supported by the first bracket 3021, and the second long side 3014 of the second photovoltaic panel 3012 can be supported by the third bracket 3023. At the same time, the second bracket 3022 is arranged on the second supporting platform 202 to simultaneously support the second long side 3014 of the first photovoltaic panel 3011 and the first long side 3013 of the second photovoltaic panel 3012 through the second bracket 3022, thereby achieving the purpose of the first photovoltaic panel 3011 and the second photovoltaic panel 3012 sharing the second bracket 3022, and then the first photovoltaic panel 3011 and the second photovoltaic panel 3012 can be arranged without a gap, thereby improving the installation capacity of the water surface photovoltaic system.

[0044] It should be noted that to ensure that the first and second support platforms 201, 202 can provide significant buoyancy support, the widths of the first and second support platforms 201, 202 should be as large as possible, allowing them to have a larger contact area with the water surface. Furthermore, to reduce material usage and lower costs, the width of the connecting buoy 203 may be no greater than the widths of the first and second support platforms 201, 202. This allows the first and second support platforms 201, 202 to provide significant buoyancy support while also reducing costs. Furthermore, because the second support platform 202 will bear significant vertical loads, its width should be as large as possible to provide greater buoyancy support. The width of the first support platform 201 may be no greater than the width of the second support platform 202, reducing material usage and costs.

[0045] In the above embodiment, the photovoltaic panels 301 can also be three, four or more, and the long sides of each photovoltaic panel 301 are arranged adjacent to each other, and the first supporting platform 201 can support the first bracket 3021 and the third bracket 3023 located at the end, and the second supporting platform 202 can be two, three or more to support the second bracket 3022 located in the middle position.

[0046] In some embodiments, as Figure 3 and Figure 5 As shown, the first support platform 201 has a first support surface 2011 and a first mounting surface 2012 that are oppositely arranged, and the first bracket 3021 and the third bracket 3023 can be respectively mounted on the first support surface 2011 of the two first support platforms 201 by first fasteners such as bolts. At the same time, the first mounting surface 2012 can adopt an arc-shaped cross-section to reduce material consumption and reduce costs, and as shown in FIG. Figure 5 As shown, a first operating hole 2013 is provided on the first mounting surface 2012 of the first supporting platform 201, so that a first fastener can be locked through the first operating hole 2013. For example, a lock nut can be threadedly engaged with the first fastener through the first operating hole 2013 to achieve a secure connection between the first bracket 3021 and the third bracket 3023 and the two first supporting platforms 201. Furthermore, the second supporting platform 202 has a second supporting surface 2021 and a second mounting surface 2022 that are oppositely disposed. The second bracket 3022 can be mounted on the second supporting surface 2021 of the second supporting platform 202 using a second fastener such as a bolt. The second mounting surface 2022 of the second supporting platform 202 has a second operating hole 2023, so that a second fastener can be locked through the second operating hole 2023. For example, a lock nut can be threadedly engaged with the second fastener through the second operating hole 2023 to achieve a secure connection between the second bracket 3022 and the second supporting platform 202.

[0047] In order to avoid mutual shading between adjacent photovoltaic panels 301, which would affect the power generation efficiency, Figure 1As shown, in some embodiments, two adjacent photovoltaic panels 301 are tilted, that is, the first long side 3013 of the photovoltaic panel 301 is tilted toward the second long side 3014, so that the light-receiving surface of the photovoltaic panel 301 can receive more light, thereby improving power generation efficiency. Specifically, the heights of the first bracket 3021, the second bracket 3022, and the third bracket 3023 can be reduced in sequence to tilt the light-receiving surface of the photovoltaic panel 301. For ease of understanding, the two opposing connection surfaces of the bracket assembly 302 are defined as the first connection surface 3024 and the second connection surface 3025, respectively. The first connection surface 3024 is connected to the supporting float 200, and the second connection surface 3025 is connected to the photovoltaic panel 301. The height of the first bracket 3021, the second bracket 3022, and the third bracket 3023 refers to the distance between the first connection surface 3024 and the second connection surface 3025 of the corresponding bracket. At the same time, when the photovoltaic panels 301 are tilted, in order to facilitate the connection of the photovoltaic panels 301, the second connection surface 3025 can be an inclined surface that fits the photovoltaic panels 301. It should be noted that two adjacent photovoltaic panels 301 can be set with the light-receiving surface facing the south, that is, the light-receiving surfaces of the photovoltaic panels 301 are tilted in the same direction, such as Figure 1 As shown; two adjacent photovoltaic panels 301 can also be arranged with the light-receiving surface of one photovoltaic panel 301 facing the south and the light-receiving surface of the other photovoltaic panel 301 facing the north, that is, the light-receiving surfaces of each photovoltaic panel 301 are arranged alternately towards the south and the north, so that the light-receiving surfaces of the two adjacent photovoltaic panels 301 do not affect each other.

[0048] The terms "first," "second," and so on in the specification, claims, and drawings of this application are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements and may include steps or elements that are not listed.

[0049] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water surface photovoltaic system, characterized in that: include: An operation and maintenance floating body (100), wherein the operation and maintenance floating body (100) comprises at least two, and the two operation and maintenance floating bodies (100) are arranged in parallel; A supporting float (200), the supporting float (200) being connected between two adjacent operation and maintenance floats (100), and the supporting float (200) comprising at least two; A photovoltaic assembly (300) comprising a photovoltaic panel (301) and a support assembly (302), wherein the photovoltaic panel (301) is supported on two adjacent supporting floats (200) via the support assembly (302).

2. The water surface photovoltaic system according to claim 1, characterized in that: The supporting float (200) comprises a first supporting platform (201), a second supporting platform (202) and a connecting float (203), wherein there are two first supporting platforms (201), and the two first supporting platforms (201) are respectively located on both sides of the second supporting platform (202), and the connecting float (203) is used to connect the second supporting platform (202) and the first supporting platforms (201) located on both sides of the second supporting platform (202).

3. The water surface photovoltaic system according to claim 2, characterized in that: The width of the connecting float (203) is not greater than the width of the first supporting buoy (201) and the second supporting buoy (202); and / or, The width of the first supporting platform (201) is not greater than the width of the second supporting platform (202).

4. The water surface photovoltaic system according to claim 2, characterized in that: The photovoltaic panels (301) include at least two, and the photovoltaic panels (301) include a first photovoltaic panel (3011) and a second photovoltaic panel (3012) arranged adjacent to the first photovoltaic panel (3011), and the photovoltaic panel (301) has a first long side (3013) and a second long side (3014) arranged opposite to each other; The support assembly (302) comprises a first support (3021), a second support (3022) and a third support (3023); the first support (3021) and the third support (3023) are respectively arranged on the first supporting platform (201); the first support (3021) is used to support the first long side (3013) of the first photovoltaic panel (3011); the third support (3023) is used to support the second long side (3014) of the second photovoltaic panel (3012); the second support (3022) is arranged on the second supporting platform (202); the second support (3022) is used to support the second long side (3014) of the first photovoltaic panel (3011) and the first long side (3013) of the second photovoltaic panel (3012).

5. The water surface photovoltaic system according to claim 4, characterized in that: The first supporting platform (201) has a first supporting surface (2011) and a first mounting surface (2012) that are arranged opposite to each other; the first bracket (3021) and the third bracket (3023) are respectively mounted on the first supporting surfaces (2011) of the two first supporting platforms (201) via first fasteners; and the first mounting surface (2012) of the first supporting platform (201) is provided with a first operating hole (2013) for locking the first fasteners; The second supporting platform (202) has a second supporting surface (2021) and a second mounting surface (2022) that are arranged opposite to each other, the second bracket (3022) is mounted on the second supporting surface (2021) of the second supporting platform (202) via a second fastener, and the second mounting surface (2022) of the second supporting platform (202) is provided with a second operating hole (2023) for locking the second fastener.

6. The water surface photovoltaic system according to claim 5, characterized in that: The first mounting surface (2012) is an arc-shaped section.

7. The water surface photovoltaic system according to claim 4, characterized in that: The heights of the first bracket (3021), the second bracket (3022), and the third bracket (3023) decrease in sequence, so that the light-receiving surface of the photovoltaic panel (301) is arranged tilted.

8. The water surface photovoltaic system according to claim 7, characterized in that: The support assembly (302) has a first connecting surface (3024) and a second connecting surface (3025) that are arranged opposite to each other, the first connecting surface (3024) is used to connect to the supporting float (200), the second connecting surface (3025) is used to connect to the photovoltaic panel (301), and the second connecting surface (3025) is an inclined surface that fits the photovoltaic panel (301).

9. The water surface photovoltaic system according to any one of claims 1 to 8, characterized in that: Both ends of the supporting float (200) are provided with lugs (204) for connecting to the operation and maintenance float (100), and the operation and maintenance float (100) is provided with a connecting plate (101) connected to the lugs (204).

10. The water surface photovoltaic system according to claim 9, characterized in that: An escape space (102) for evading the ear portion (204) is provided at the connection plate (101) of the operation and maintenance float (100).

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