A floating photovoltaic platform at sea

Abstract

The present invention discloses an offshore floating photovoltaic platform, comprising: a floating body; a support frame arranged on the top of the floating body; a photovoltaic platform arranged on the top of the support frame and used to lay photovoltaic panels; and an anchoring mechanism arranged below the floating body and connected to the bottom of the floating body. In this solution, on the one hand, the installation height of the photovoltaic platform is raised by the support frame to avoid the influence of waves, and on the other hand, the floating body is fixed by the anchoring mechanism to avoid floating, and at the same time, the floating body has a certain wind and wave resistance, which helps to improve the application scope of the floating photovoltaic platform and make it applicable to sea surfaces with strong wind and wave conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to an offshore floating photovoltaic platform. Background Art

[0002] At present, solar power stations are mainly concentrated on land, which requires a large area of ​​land. In order to solve the problem of land occupation, floating photovoltaic platforms on the water surface have also been rapidly developed. At present, floating photovoltaic platforms on the water surface are built in closed waters such as ponds, small lakes, reservoirs, and reservoirs. Because these waters are basically calm and there are no large waves, and the corresponding floating structure design allows the photovoltaic panels to be particularly close to the water surface.

[0003] In other words, most of the current floating photovoltaic platforms are only suitable for calm, enclosed waters. They do not have the ability to resist wind and waves, and are not suitable for seas with more solar energy resources but greater wind and wave conditions. Summary of the invention

[0004] In view of this, the present invention provides an offshore floating photovoltaic platform. On the one hand, the installation height of the photovoltaic platform is raised by a support frame to avoid the influence of waves. On the other hand, the floating body is fixed by an anchoring mechanism to prevent the floating body from floating. At the same time, the floating body has a certain ability to resist wind and waves, which helps to improve the scope of application of the floating photovoltaic platform and make it suitable for sea surfaces with greater wind and wave conditions.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An offshore floating photovoltaic platform, comprising:

[0007] floating body;

[0008] A support frame arranged on the top of the floating body;

[0009] A photovoltaic platform disposed on the top of the support frame and used for laying photovoltaic panels;

[0010] An anchoring mechanism is disposed below the floating body and connected to the bottom of the floating body.

[0011] Preferably, the photovoltaic platform comprises a main beam base, a plurality of main beams and a plurality of secondary beams;

[0012] The bottom of the main beam base is connected to the top of the support frame; the multiple main beams are respectively arranged on both sides of each side corner of the main beam base; and the multiple secondary beams are staggered and arranged on the main beam base and the tops of the multiple main beams.

[0013] Preferably, the main beam base is a double-layer main beam base; and the main beam is a double-layer main beam.

[0014] Preferably, the support frame comprises a catheter frame.

[0015] Preferably, the bottom of the conductor frame is connected to the floating body, passes through the top surface of the floating body and extends downward to the bottom surface thereof.

[0016] Preferably, the floating body comprises two buoys and a plurality of buoy cross braces;

[0017] The two buoys are arranged in parallel along the horizontal direction, and a plurality of buoy cross braces are respectively connected in parallel between the two buoys. The tops of the two buoys are connected to the bottoms of the support frames, and the bottoms are connected to the anchoring mechanisms.

[0018] Preferably, the support frame comprises a plurality of support frame monomers, each of which is divided into two groups;

[0019] The bottoms of the two groups of support frame monomers are respectively connected to the tops of the two buoys in a one-to-one correspondence, and the tops are connected to the photovoltaic platform.

[0020] Preferably, the anchoring mechanism comprises a plurality of anchor bases and a plurality of anchor chains;

[0021] The plurality of anchor bases are connected to the bottom of the floating body through a plurality of anchor chains corresponding to each other.

[0022] Preferably, it also includes:

[0023] A ballast mechanism is disposed below the floating body and connected to the bottom of the floating body.

[0024] Preferably, the ballast mechanism comprises two ballast columns, a plurality of ballast cross braces and a plurality of steel cables;

[0025] The two ballast columns are arranged in parallel in the horizontal direction below the floating body, and a plurality of ballast cross braces are respectively connected in parallel between the two ballast columns. Each ballast column is connected to the bottom of the floating body through at least two steel cables.

[0026] It can be seen from the above technical solutions that the offshore floating photovoltaic platform provided by the present invention, on the one hand, raises the installation height of the photovoltaic platform through the support frame to avoid the influence of waves, and on the other hand, fixes the floating body through the anchoring mechanism to prevent the floating body from floating, while at the same time making the floating body have a certain ability to resist wind and waves, thereby helping to improve the scope of application of the floating photovoltaic platform and making it suitable for sea surfaces with greater wind and wave conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 An overall view of an offshore floating photovoltaic platform provided by an embodiment of the present invention;

[0029] Figure 2 A front view of an offshore floating photovoltaic platform provided by an embodiment of the present invention;

[0030] Figure 3 A side view of an offshore floating photovoltaic platform provided by an embodiment of the present invention;

[0031] Figure 4 A top view of an offshore floating photovoltaic platform provided by an embodiment of the present invention;

[0032] Figure 5 A partial bottom view of an offshore floating photovoltaic platform provided by an embodiment of the present invention;

[0033] Figure 6 A partial enlarged view of an offshore floating photovoltaic platform provided by an embodiment of the present invention;

[0034] Figure 7 A diagram of a basic module of an offshore floating photovoltaic platform provided in an embodiment of the present invention.

[0035] Among them, 10 is the photovoltaic platform, 11 is the main beam base, 12 is the main beam, 13 is the secondary beam; 20 is the conductor frame; 31 is the buoy, 32 is the buoy cross brace; 40 is the anchoring mechanism, 41 is the anchor base, 42 is the anchor chain; 50 is the ballast mechanism, 51 is the ballast column, 52 is the ballast cross brace, 53 is the steel cable; 60 is the platform diagonal brace beam. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The offshore floating photovoltaic platform provided by the embodiment of the present invention is as follows: Figure 1 As shown, including:

[0038] floating body;

[0039] A support frame disposed on the top of the floating body;

[0040] A photovoltaic platform 10 disposed on the top of the support frame and used for laying photovoltaic panels;

[0041] An anchoring mechanism 40 is disposed below the floating body and connected to the bottom of the floating body.

[0042] It should be noted that the photovoltaic platform 10 is arranged above the floating body through a support frame so that the photovoltaic platform 10 is away from the sea surface to avoid the influence of sea surface wind and waves. In addition, the floating body is fixed to the sea area through an anchoring mechanism 40 to avoid floating, and at the same time, the floating body has a certain ability to resist wind and waves.

[0043] It can be seen from the above technical solutions that the offshore floating photovoltaic platform provided by the embodiment of the present invention, on the one hand, raises the installation height of the photovoltaic platform through the support frame to avoid the influence of waves, and on the other hand, fixes the floating body through the anchoring mechanism to prevent the floating body from floating, while at the same time enabling the floating body to have a certain wind and wave resistance, thereby helping to improve the scope of application of the floating photovoltaic platform and making it suitable for sea surfaces with greater wind and wave conditions.

[0044] Specifically, Figure 5 and Figure 6 As shown, the photovoltaic platform 10 includes a main beam base 11, a plurality of main beams 12 and a plurality of secondary beams 13;

[0045] The bottom of the main beam base 11 is connected to the top of the support frame; multiple main beams 12 are respectively arranged on both sides of each side corner of the main beam base 11; multiple secondary beams 13 are staggered and arranged on the top of the main beam base 11 and multiple main beams 12. Figure 5 As shown, the main beam base 11 is a square-shaped main beam base, and a plurality of main beams 12 are respectively suspended on both sides of each side corner of the square-shaped main beam base, so that the main beam base 11 and the plurality of main beams 12 form a well-shaped main frame structure (such as Figure 7 As shown in FIG. 1 , multiple secondary beams 13 are then staggered and arranged on the top of the tic-tac-toe main frame structure. The photovoltaic platform 10 of this solution is designed in this way, and has the characteristics of being simple in structure, firm in structure, stable and reliable.

[0046] Furthermore, if Figure 6 As shown, the main beam base 11 is a double-layer main beam base; the main beam 12 is a double-layer main beam, which helps to improve the structural strength of the photovoltaic platform 10. In addition, in order to further improve the structural strength of the photovoltaic platform 10, as shown in FIG. Figure 5 As shown, each side of the crisscross main frame structure can adopt a double main beam structure arranged in parallel, that is, the sides of the main beam 12 and the main beam base 11 can adopt a double main beam structure arranged in parallel.

[0047] As a preference, Figure 1 and Figure 2 As shown, the support frame includes a pipe frame 20. That is to say, the present solution uses a pipe frame as the support structure of the photovoltaic platform 10 near the sea surface, which can significantly reduce the wave load while ensuring the rigidity of the overall structure, and the support structure above the floating body adopts a pipe frame design, which can reduce the overall structural weight and save costs compared to traditional large-diameter columns. In addition, the present solution can also use the photovoltaic platform 10, the pipe frame 20 and the floating body as basic modules to achieve the expansion of the offshore floating photovoltaic platform.

[0048] In order to further optimize the above technical solution, the bottom of the jacket 20 is connected to the floating body, passes through the top surface of the floating body and extends downward to its bottom surface, ensuring the structural strength of the connection between the bottom of the jacket 20 and the floating body.

[0049] Furthermore, if Figure 2 As shown, the floating body includes two buoys 31 and a plurality of buoy cross braces 32;

[0050] The two buoys 31 are arranged in parallel in the horizontal direction, and a plurality of buoy cross braces 32 are connected in parallel between the two buoys 31. The tops of the two buoys 31 are connected to the bottoms of the support frames, and the bottoms are connected to the anchoring mechanism. The floating body of the present solution is designed in this way, which helps to increase the occupied area of ​​the floating body, reduce the wave load on the photovoltaic platform 10, and reduce the motion response of the photovoltaic platform 10.

[0051] Furthermore, the support frame includes a plurality of support frame units, each of which is divided into two groups;

[0052] The bottoms of the two groups of support frame monomers are connected to the tops of the two buoys 31 one by one, and the tops are connected to the photovoltaic platform 10. This solution is designed so that multiple support frame monomers share a segmented floating body, which helps to improve the stability of the offshore floating photovoltaic platform. Figure 5 As shown, the photovoltaic platform 10 is supported by four pipe racks. Under the premise of ensuring the overall rigidity, the area of ​​the photovoltaic platform 10 can be expanded by increasing the distance between the pipe racks to increase the installed capacity. Figure 7 As shown, the photovoltaic platform 10 may also be supported on a floating body by a pipe frame 20 .

[0053] In this solution, in order to make the floating body have a better anchoring effect, Figure 2 As shown, the anchoring mechanism 40 includes a plurality of anchor bases 41 and a plurality of anchor chains 42;

[0054] A plurality of anchor bases 41 are connected to the bottom of the floating body through a plurality of anchor chains 42 corresponding to each other.

[0055] Furthermore, in order to further improve the wind and wave resistance and stability of the floating body, such as Figure 1 As shown, the offshore floating photovoltaic platform provided by the embodiment of the present invention also includes:

[0056] The ballast mechanism 50 is arranged below the floating body and connected to the bottom of the floating body. In other words, the present solution adopts a separate design of the floating body and the ballast mechanism 50 to improve the stability of the offshore floating photovoltaic platform.

[0057] Furthermore, if Figure 2 As shown, the ballast mechanism 50 includes two ballast columns 51, a plurality of ballast cross braces 52 and a plurality of steel cables 53;

[0058] Two ballast columns 51 are arranged in parallel in the horizontal direction below the floating body, and a plurality of ballast cross braces 52 are respectively connected in parallel between the two ballast columns 51. Each ballast column 51 is connected to the bottom of the floating body through at least two steel cables 53. The ballast mechanism 50 of the present solution is designed in this way, which helps to further improve the stability of the floating body. In addition, the ballast column 51 can be a solid concrete structure or a steel shell reinforced with solid or liquid ballast. In other words, the ballast column 51 can adopt a solid concrete structure, or a hollow steel structure filled with concrete, water, sand and other materials.

[0059] The present invention is further described below in conjunction with specific embodiments:

[0060] The present invention provides an expandable modular offshore floating photovoltaic platform. The entire floating photovoltaic platform consists of an upper truss photovoltaic platform, a conductor frame, an underwater floating body module (i.e., a floating body), steel cables, a ballast module (i.e., a ballast mechanism), an anchor chain, an anchor base and other components. The modules can be connected by various means such as welding and bolts.

[0061] The upper truss photovoltaic platform consists of a double-layer main beam, a secondary beam, and a main beam base. The main beam is welded to the main beam base, and the double-layer main beam is connected by many cylindrical support beams to improve strength. The secondary beams are arranged parallel to each other on the main beam. The platform formed by the main and secondary beams is used to lay photovoltaic panels.

[0062] Adjacent to the upper platform is the conductor frame, and the top of the conductor frame and the platform base are connected by welding.

[0063] The floating body is composed of a main buoy and a plurality of cross braces. The buoy and the jacket base are welded together. The jacket base is composed of four main columns, which pass through the upper surface of the floating body and extend downward to the lower surface of the floating body to ensure the structural strength.

[0064] The ballast consists of main columns (i.e. ballast columns) and cross braces, and the ballast is connected to the buoy through steel cables.

[0065] The buoy is connected to the anchor base through anchor chains.

[0066] The anchor foundation can be of various types such as suction cylinder, gravity type, pile anchor, etc.

[0067] The area of ​​the upper photovoltaic platform can be changed according to design requirements by adjusting the distance between the conductor racks.

[0068] The main buoy of the floating module adopts a compartment design. During ballasting, water or other substances can be added as needed. Multiple compartments can better maintain the stability of the floating foundation.

[0069] The type of the floating body module can be a type shared by multiple conductor racks, or a type used exclusively by a single conductor rack, and the floating bodies are connected by cross braces.

[0070] The ballast module can be a solid concrete structure or a steel shell with solid or liquid ballast. It can have many shapes.

[0071] A conductor frame, platform base, double-layer crisscross main beam and auxiliary secondary beams can be formed into a separate basic module. The platform area can be expanded by increasing the number of modules and correspondingly adding floating modules and ballast modules.

[0072] The entire platform can be manufactured in a modular manner on land, reducing the requirements for site area. It can also reduce manufacturing costs through advance manufacturing and large-scale manufacturing.

[0073] The entire floating photovoltaic platform can be assembled as a whole at the manufacturing site, and then towed to the installation location by the overall buoyancy. In order to ensure the stability of the platform, the ballast module and the floating module can be tied together by ropes. After being transported to the installation location, the ballast module can be released to the specified water depth. That is, the platform is assembled in a modular way, which can be towed and transported as a whole or transported in parts by transport ships.

[0074] The platform can be expanded through standardized platform modules, enabling the reuse of a basic module design and reducing design and production costs.

[0075] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0076] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An offshore floating photovoltaic platform, characterized in that: include: floating body; A support frame arranged on the top of the floating body; A photovoltaic platform (10) disposed on the top of the support frame and used for laying photovoltaic panels; An anchoring mechanism (40) is disposed below the floating body and connected to the bottom of the floating body; The photovoltaic platform (10) comprises a main beam base (11), a plurality of main beams (12) and a plurality of secondary beams (13); The bottom of the main beam base (11) is connected to the top of the support frame; the plurality of main beams (12) are respectively arranged on both sides of each side corner of the main beam base (11); the plurality of secondary beams (13) are staggered and arranged on the top of the main beam base (11) and the plurality of main beams (12); The main beam base (11) is a square-shaped main beam base, and a plurality of main beams (12) are respectively suspended on both sides of each side corner of the square-shaped main beam base, so that the main beam base (11) and the plurality of main beams (12) form a square-shaped main frame structure, and a plurality of secondary beams (13) are staggered and arranged on the top of the square-shaped main frame structure; The sides of the main beam (12) and the main beam base (11) both adopt a double main beam structure arranged in parallel, so that each side of the crisscross main frame structure is a double main beam structure arranged in parallel; The floating body comprises two buoys (31) and a plurality of buoy cross braces (32); The two buoys (31) are arranged in parallel in the horizontal direction, a plurality of buoy cross braces (32) are respectively connected in parallel between the two buoys (31), the tops of the two buoys (31) are connected to the bottom of the support frame, and the bottom is connected to the anchoring mechanism; The support frame includes a plurality of support frame monomers, each of which is divided into two groups; The bottoms of the two groups of support frame monomers are respectively connected to the tops of the two buoys (31) in a one-to-one correspondence, and the tops are connected to the photovoltaic platform (10); wherein the support frame monomers are conduit frame monomers.

2. The offshore floating photovoltaic platform according to claim 1, characterized in that: The support frame comprises a catheter frame (20).

3. The offshore floating photovoltaic platform according to claim 2, characterized in that: The bottom of the pipe frame (20) is connected to the floating body, passes through the top surface of the floating body and extends downward to the bottom surface thereof.

4. The offshore floating photovoltaic platform according to claim 1, characterized in that: The anchoring mechanism (40) comprises a plurality of anchor bases (41) and a plurality of anchor chains (42); The plurality of anchor bases (41) are connected to the bottom of the floating body through a plurality of anchor chains (42) corresponding to each other.

5. The offshore floating photovoltaic platform according to claim 1, characterized in that: Also includes: A ballast mechanism (50) is arranged below the floating body and connected to the bottom of the floating body.

6. The offshore floating photovoltaic platform according to claim 5, characterized in that: The ballast mechanism (50) comprises two ballast columns (51), a plurality of ballast cross braces (52) and a plurality of steel cables (53); The two ballast columns (51) are arranged in parallel in the horizontal direction below the floating body, and the plurality of ballast cross braces (52) are respectively connected in parallel between the two ballast columns (51), and each ballast column (51) is connected to the bottom of the floating body through at least two steel cables (53).

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