Floating type offshore photovoltaic platform

Abstract

The utility model discloses a floating type offshore photovoltaic platform which comprises a framework, a carrying rack, a photovoltaic assembly, a buoyancy module and an anchoring system. The framework is of an inverted regular prismatic table structure; the carrying rack is fixed at the top of the framework, and the photovoltaic module is mounted on the carrying rack; the buoyancy module is arranged at the lower part of the framework and is used for providing buoyancy for the whole photovoltaic platform; the upper end of the anchoring system is connected with the bottom of the framework, and the lower end of the anchoring system is fixed to the water bottom. The photovoltaic platform has the advantages that the photovoltaic framework is of an inverted regular prismatic table structure, the air gap of the platform is high, and compared with an existing columnar photovoltaic platform, the motion response is small, the anti-risk capacity is high, and the photovoltaic platform is high in safety, stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a floating offshore photovoltaic platform. Background Art

[0002] In recent years, with the increasing demand for renewable energy and technological advancements, floating photovoltaic platforms have gradually attracted widespread attention. The proximity of their panels to the water effectively reduces operating temperatures, improving power generation efficiency and lifespan. Furthermore, since they do not occupy land resources, floating photovoltaic platforms are particularly suitable for areas with scarce land resources. They can be installed in reservoirs, lakes, oceans, and other water bodies, effectively utilizing water resources. Therefore, as a new renewable energy technology, floating offshore photovoltaic platforms, with their multiple advantages, are gradually becoming a key component of the global energy transition.

[0003] However, most existing floating photovoltaic platforms are columnar in design and use steel structures. The overall weight of the photovoltaic platform is large, and the low loading capacity leads to fewer photovoltaic modules and low economic efficiency. The columnar design also leads to weak wind and wave resistance, resulting in low overall safety and short service life of the photovoltaic platform.

[0004] Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0005] The purpose of the present invention is to provide a floating offshore photovoltaic platform to address the deficiencies of the existing technology, thereby improving the safety of the photovoltaic platform.

[0006] The technical solution adopted by the utility model is: a floating offshore photovoltaic platform, including a frame, a carrying stand, photovoltaic components, a buoyancy module and an anchoring system;

[0007] The frame is an inverted right prism structure; the mounting platform is fixed to the top of the frame, and the photovoltaic module is mounted on the mounting platform;

[0008] The buoyancy module is arranged at the lower part of the frame;

[0009] The upper end of the mooring system is connected to the bottom of the frame, and the lower end of the mooring system is fixed to the bottom of the water.

[0010] According to the above solution, the skeleton includes a bottom support frame, a top support frame, and an oblique connection assembly; the top support frame is parallel to the bottom support frame; and the oblique connection assembly connects the bottom support frame and the top support frame.

[0011] According to the above solution, the bottom support frame and the top support frame are corresponding regular polygonal structures;

[0012] The bottom support frame is formed by enclosing and connecting multiple bottom support rods, and the connection point of two adjacent bottom support rods is the bottom connection point; the top support frame is formed by enclosing and connecting multiple top support rods, and the connection point of two adjacent top support rods is the top connection point;

[0013] The oblique connection assembly includes multiple oblique connection rods and multiple oblique reinforcement rods; the bottom connection point is connected to the top connection point corresponding to the upper position through the oblique connection rod; the lower end of the oblique reinforcement rod is connected to the bottom connection point, and the upper end of the oblique reinforcement rod is connected to the middle of the top support rods on both sides above the bottom connection point.

[0014] According to the above scheme, a central pillar is set at the geometric center of the bottom support frame, a vertical support rod is set at each bottom connection point, and the lower end of the central pillar is connected to the end of each vertical support rod through a horizontal connecting rod.

[0015] According to the above solution, the carrying platform is mounted on the top of the top support frame and is connected to the top support frame, the vertical support rods and the central pillar.

[0016] According to the above solution, the buoyancy module includes a plurality of first floats fixed on the bottom support frame, and a plurality of second floats fixed on the oblique connection components and the vertical support rods.

[0017] According to the above solution, the mooring system includes an anchor chain and an anchor block, the upper end of the anchor chain is connected to the bottom support frame, and the lower end of the anchor chain is connected to the anchor block fixed to the bottom of the water.

[0018] According to the above solution, the skeleton and each rod of the mounting platform are respectively made of glass fiber reinforced polyurethane composite material.

[0019] According to the above solution, the skeleton is an inverted regular hexagonal pyramid structure.

[0020] According to the above solution, the first floating body and the second floating body are buoys.

[0021] The beneficial effects of the utility model are:

[0022] (1) In the present invention, the photovoltaic frame is an inverted right prism structure with a high platform air gap. Compared with the existing columnar photovoltaic platform, the motion response is small and the risk resistance is strong. The photovoltaic platform is highly safe, stable and reliable, and has a long service life. The top enclosed area of ​​the frame is larger than the bottom enclosed area. Compared with the existing columnar photovoltaic platform, it has a larger photovoltaic module laying area, which increases the light receiving area of ​​the photovoltaic platform, increases the power generation of the photovoltaic platform, and is highly economical.

[0023] (2) In the present invention, the frame is a truss structure, including a bottom support frame, a top support frame, an oblique support assembly, a horizontal connecting rod, a central pillar and a vertical support rod. This structural design improves the structural stability and strength of the frame.

[0024] (3) In the present invention, the design of the mooring system and buoyancy module enhances the wave resistance and anti-sinking ability, and improves the safety and stability of the photovoltaic platform.

[0025] (4) In the present invention, the frame and the mounting frame of the photovoltaic platform are made of glass fiber reinforced polyurethane composite materials. Compared with the pure steel structure photovoltaic platform, the photovoltaic platform is light in overall weight and has a lower construction cost. Under the same displacement, it can carry more photovoltaic modules without the need for additional spraying, which has less pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram of a specific embodiment of the utility model.

[0027] Figure 2 It is a top view of this embodiment.

[0028] Figure 3 Schematic diagram of the connection between the skeleton, the carrying platform and the anchor chain system in this embodiment.

[0029] Figure 4 Schematic diagram of the connection between the skeleton and the mounting platform in this embodiment.

[0030] Figure 5 Schematic diagram of the structure of the skeleton in this embodiment.

[0031] Figure 6 for Figure 2 A in the enlarged view.

[0032] Among them: 1. oblique connecting rod; 2. Underwater connecting piece; 3. First floating body; 4. Second floating body; 5. Above-water connecting piece; 6. Central pillar; 7. Carrying platform; 8. Photovoltaic module; 9. Anchor chain; 10. Top support rod; 11. Vertical support rod; 12. Bottom support rod; 13. Anchor block; 14. Oblique reinforcement rod; 15. Horizontal connecting rod. DETAILED DESCRIPTION

[0033] In order to better understand the present invention, the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] Reference Figures 1-3 A floating offshore photovoltaic platform is shown, comprising a frame, a carrying platform 7, photovoltaic modules 8, a buoyancy module and an anchoring system;

[0035] The frame is an inverted right prism structure; the mounting frame 7 is fixed to the top of the frame, and the photovoltaic module 8 is installed on the mounting frame 7;

[0036] The buoyancy module is arranged at the lower part of the frame and is used to provide buoyancy for the entire photovoltaic platform;

[0037] The upper end of the mooring system is connected to the bottom of the frame, and the lower end of the mooring system is fixed to the bottom of the water.

[0038] In the present invention, the skeleton can be an inverted quadrangular pyramid, pentagonal pyramid or hexagonal pyramid.

[0039] Preferably, the skeleton comprises a bottom support frame, a top support frame, and an oblique connection assembly;

[0040] The top support frame is parallel to the bottom support frame; the oblique connection component connects the bottom support frame and the top support frame.

[0041] Preferably, if Figure 4 and Figure 5 As shown, the bottom support frame and the top support frame are corresponding regular polygon structures;

[0042] The bottom support frame is formed by connecting a plurality of bottom support rods 12, and the connection point between two adjacent bottom support rods 12 is the bottom connection point; the top support frame is formed by connecting a plurality of top support rods 10, and the connection point between two adjacent top support rods 10 is the top connection point.

[0043] The oblique connection assembly includes a plurality of oblique connection rods 1 and a plurality of oblique reinforcement rods 14;

[0044] The bottom connection point is connected to the top connection point corresponding to the upper position through the oblique connecting rod 1;

[0045] The lower end of the oblique reinforcing rod 14 is connected to the bottom connection point, and the upper end of the oblique reinforcing rod 14 is connected to the middle of the top support rod 10 on both sides above the bottom connection point.

[0046] In the present invention, the top support rod 10, the corresponding bottom support rod 12 and the oblique connecting rods 1 at both ends form a trapezoid; a bottom connection point is connected to the corresponding top connection point through an oblique connecting rod 1, and is connected to the top support rods 10 on both sides above through two oblique reinforcing rods 14.

[0047] Preferably, a vertical central pillar 6 is arranged at the geometric center of the bottom support frame, and a vertical support rod 11 is arranged at each bottom connection point. The lower end of the central pillar 6 is connected to the end of each vertical support rod 11 through a horizontal connecting rod 15.

[0048] In the present invention, the top elevation of each vertical support rod 11 and the central pillar 6 is consistent with the elevation of the top support frame; the ends of the horizontal connecting rod 15, the vertical support rod 11, the oblique connecting rod 1, the oblique connecting rod 1 and the bottom support rod 12 are all connected at the bottom connection point; and each rod is connected by a spherical connecting piece.

[0049] Preferably, the carrying platform 7 is provided on the top of the top support frame and is connected to the top support frame, the vertical support rod 11 and the central pillar 6. Specifically, the carrying platform 7 includes a plurality of carrying connecting rods respectively parallel to each top support rod 10, and the carrying connecting rods are staggered and connected to each other.

[0050] Preferably, the buoyancy module includes a plurality of first floats 3 fixed on a bottom support frame, and a plurality of second floats 4 fixed on an oblique connection assembly and a vertical support rod 11 .

[0051] In the present invention, the first float 3 is covered on each bottom support rod 12 of the bottom support frame, and the first float 3 is arranged along the length of the bottom support rod 12; the second float 4 is respectively arranged on the oblique connecting rod 1, the oblique reinforcing rod 14 and the vertical support rod 11, and the second float 4 is located above the water surface; the first float 3 and the second float 4 can both be buoys.

[0052] Preferably, the mooring system includes an anchor chain 9 and an anchor block 13, wherein the upper end of the anchor chain 9 is connected to the bottom support frame (specifically, connected to the bottom connection point), and the lower end of the anchor chain 9 is connected to the anchor block 13 fixed to the bottom of the water.

[0053] In the present invention, the mooring system is designed to have at least three groups, which are evenly spaced around the periphery of the frame.

[0054] Preferably, the skeleton and each rod of the mounting platform 7 are respectively made of glass fiber reinforced polyurethane composite material.

[0055] Example

[0056] like Figures 1-3 As shown, a floating offshore photovoltaic platform includes a skeleton, a carrying platform 7, a buoyancy module, an anchoring system and a photovoltaic module 8, specifically:

[0057] like Figure 4 and Figure 5As shown, the skeleton is an inverted regular hexagonal pyramid, and the bottom support frame and the top support frame are both regular hexagons, and the two are respectively connected by six bottom support rods 12 or top support rods 10; the length of the top support rod 10 is twice the length of the bottom support rod 12; the connection point of two adjacent bottom support rods 12 is a bottom connection point, and the connection point of two adjacent top support rods 10 is a top connection point; each bottom connection point is connected to the corresponding top connection point above through an oblique connecting rod 1, and is connected to the middle part of the top support rod 10 on both sides through two oblique reinforcing rods 14; a vertical central pillar 6 is set at the geometric center of the bottom support frame, and each bottom connection point is also provided with a vertical support rod 11, and the lower end of the central pillar 6 is connected to the six bottom connection points through six horizontal connecting rods 15; each rod is connected by a spherical connecting piece. The horizontal connecting rod 15, the oblique connecting rod 1, the oblique reinforcing rod 14, the vertical support rod 11, the central pillar 6, and the bottom support rod 12 are connected by the underwater connecting piece 2, and the top support rod 10 is connected to the oblique connecting rod 1, the top support rod 10 and the oblique reinforcing rod 14 by the water connecting piece 5, wherein the enclosed area of ​​the top support frame is twice the enclosed area of ​​the bottom support frame, and the main view and the side view of the entire skeleton are trapezoidal, providing an installation surface for connecting the carrying platform 7, so that the overall area of ​​the carrying platform 7 is increased, and then the area for laying photovoltaic modules 8 is increased, so as to achieve the purpose of installing more photovoltaic modules 8; the rod length ratio of the top support rod 10 to the vertical support rod 11 is 10:3, which ensures that the top is wider while ensuring that the photovoltaic platform has sufficient stability and is not easy to hit the waves. The photovoltaic platform as a whole is a truss structure with a high air gap, good wave resistance and strong survivability.

[0058] The mounting platform 7 is connected to the top support frame, vertical support rod 11 and central pillar 6, and is used to lay photovoltaic modules 8. According to the lighting conditions, the mounting platform 7 is divided into three areas, and the installation angle of the photovoltaic modules 8 in each area is designed according to the lighting conditions, such as Figure 6 As shown. Since the frame is in the form of an inverted prism structure, the mounting platform 7 has a larger paving area; Figure 2 As shown, photovoltaic modules 8 are evenly arranged in sections on the mounting platform 7, converting absorbed solar energy into electricity. Compared to traditional photovoltaic platforms, this embodiment utilizes a larger number of photovoltaic modules 8, thereby increasing the solar exposure area of ​​the photovoltaic platform. Furthermore, the mounting platform 7 is designed in sections, and the mounting angles of the photovoltaic modules 8 are tailored to the lighting conditions, improving the overall economic efficiency of the photovoltaic platform.

[0059] The buoyancy module's first float 3, mounted on the bottom support frame, provides the buoyancy required for the photovoltaic platform's normal operation, ensuring excellent anti-sinking and wave resistance. To ensure the photovoltaic platform can maintain normal operation in adverse weather conditions, a second float 4 is mounted on the diagonal connecting rod 1, the diagonal connecting rod 2, and the vertical support, positioned above the designed waterline to provide sufficient reserve buoyancy.

[0060] The mooring system's anchor chain (9) is fixed at its upper end to the bottom support frame, while its lower end is anchored to a submerged anchor block (13). This catenary mooring design controls the platform's movement, enhancing its safety and stability. Calculations and analysis show that the buoyancy module and mooring system ensure the platform can meet operational and survivability requirements in sea state 5, maintaining stability and normal operation within its designed operating life, and enhancing its wave and sinking resistance.

[0061] The entire skeleton and the mounting platform 7 are made of existing glass fiber reinforced polyurethane composite materials. This material has high strength and density far less than that of steel structure. The structure is light in weight and the overall cost of the photovoltaic platform is low. Under the same displacement, more photovoltaic modules 8 can be carried. It has good resistance to ultraviolet rays, aging, and marine salt spray corrosion. It rarely attaches to marine organisms, does not require anti-corrosion treatment, does not precipitate chemical substances, and does not pollute the marine environment.

[0062] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0063] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A floating offshore photovoltaic platform, characterized in that: Including the frame, carrying platform, photovoltaic panels, buoyancy modules and mooring system; The frame is an inverted right prism structure; the mounting platform is fixed to the top of the frame, and the photovoltaic module is mounted on the mounting platform; The buoyancy module is arranged at the lower part of the frame; The upper end of the mooring system is connected to the bottom of the frame, and the lower end of the mooring system is fixed to the bottom of the water.

2. The floating offshore photovoltaic platform according to claim 1, characterized in that: The skeleton includes a bottom support frame, a top support frame, and an oblique connection assembly; the top support frame is parallel to the bottom support frame; and the oblique connection assembly connects the bottom support frame and the top support frame.

3. The floating offshore photovoltaic platform according to claim 2, characterized in that: The bottom support frame and the top support frame are corresponding regular polygonal structures; The bottom support frame is formed by enclosing and connecting multiple bottom support rods, and the connection point of two adjacent bottom support rods is the bottom connection point; the top support frame is formed by enclosing and connecting multiple top support rods, and the connection point of two adjacent top support rods is the top connection point; The oblique connection assembly includes multiple oblique connection rods and multiple oblique reinforcement rods; the bottom connection point is connected to the top connection point corresponding to the upper position through the oblique connection rod; the lower end of the oblique reinforcement rod is connected to the bottom connection point, and the upper end of the oblique reinforcement rod is connected to the middle of the top support rods on both sides above the bottom connection point.

4. The floating offshore photovoltaic platform according to claim 3, characterized in that: A central pillar is set at the geometric center of the bottom support frame, and a vertical support rod is set at each bottom connection point. The lower end of the central pillar is connected to the end of each vertical support rod through a horizontal connecting rod.

5. The floating offshore photovoltaic platform according to claim 4, characterized in that: The carrying platform is mounted on the top of the top support frame and is connected to the top support frame, the vertical support rod and the central pillar.

6. The floating offshore photovoltaic platform according to claim 5, characterized in that: The buoyancy module includes a plurality of first floats fixed on a bottom support frame, and a plurality of second floats fixed on an oblique connection assembly and a vertical support rod.

7. The floating offshore photovoltaic platform according to claim 6, characterized in that: The mooring system comprises an anchor chain and an anchor block, wherein the upper end of the anchor chain is connected to the bottom support frame, and the lower end of the anchor chain is connected to the anchor block fixed on the bottom of the water.

8. The floating offshore photovoltaic platform according to claim 7, characterized in that: The frame and the rods of the carrying platform are respectively made of glass fiber reinforced polyurethane composite materials.

9. The floating offshore photovoltaic platform according to any one of claims 1 to 8, characterized in that: The skeleton is an inverted regular hexagonal pyramid structure.

10. The floating offshore photovoltaic platform according to claim 6, characterized in that: The first floating body and the second floating body are buoys.

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