Offshore photovoltaic power generation platform

Abstract

The utility model provides an offshore photovoltaic power generation platform. The platform comprises a photovoltaic assembly, a frame platform, a floating body, a connecting assembly, a mooring cable and an anchor foundation. The frame platform comprises platform cross beams and platform longitudinal beams, and the platform cross beams and the platform longitudinal beams divide the frame platform into a plurality of platform intervals; a plurality of floating bodies are arranged in each platform section, the floating bodies are connected through connecting assemblies, and the photovoltaic assemblies are fixed on the floating bodies; the connecting assembly comprises a connecting rope and a connecting pipe; the connecting pipe is fixed in the floating body and two ends of the connecting pipe penetrate out of the floating body; and the frame platform is connected with the anchor foundation through a mooring rope. The framework platform is divided into a plurality of platform sections for layout, so that the space utilization rate is effectively improved; and meanwhile, the floating body is effectively restrained and fixed through cooperation of the connecting pipe and the connecting rope, and the overall safety and the operation stability are effectively improved.

Description

Technical Field

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

[0002] Since onshore solar photovoltaic power generation projects require a lot of land resources, and considering factors such as the contradiction between people and land and light resources, the development of onshore solar photovoltaic power generation is greatly restricted. The offshore photovoltaic power generation platform is a solar power generation system supported by a floating structure on the sea surface. This platform takes advantage of the vast sea area and sufficient sunshine, and realizes photovoltaic power generation on the ocean by installing solar photovoltaic panels on a special floating body.

[0003] As the offshore environment and loads are more complex and harsh, more issues that do not need to be considered in land-based photovoltaic power generation design and water-based photovoltaic power generation design need to be considered, including the strength and stability requirements of the overall platform structure under the combined effects of strong winds, currents, and waves. Existing floating photovoltaic power generation platforms usually connect multiple buoys together and install photovoltaic modules on the buoys. They have poor strength and stability. When encountering harsh environments, the floating structure is prone to continuous damage. Utility Model Content

[0004] In view of this, the present application provides an offshore photovoltaic power generation platform to solve the problem of poor strength and stability of the overall structure of the existing floating photovoltaic power generation platform.

[0005] To achieve the above objectives, the present application provides an offshore photovoltaic power generation platform, which adopts the following technical solutions:

[0006] The present application provides an offshore photovoltaic power generation platform, comprising: a photovoltaic module, a frame platform, a floating body, a connection module, a mooring cable and an anchor foundation;

[0007] The frame platform includes a platform crossbeam and a platform longitudinal beam, and the platform crossbeam and the platform longitudinal beam divide the frame platform into a plurality of platform sections;

[0008] A plurality of floating bodies are arranged in each platform interval, the floating bodies are connected by the connecting components, and the photovoltaic components are fixed on the floating bodies;

[0009] The connection assembly includes a connection rope and a connection pipe, wherein the connection pipe is fixed inside the floating body and both ends thereof pass through the floating body, one end of the connection rope is connected to the platform cross beam or the platform longitudinal beam on one side of the platform interval, and the other end passes through the connection pipes of multiple floating bodies in sequence and is connected to the platform cross beam or the platform longitudinal beam on the other side of the platform interval;

[0010] The frame platform and the anchor foundation are connected via mooring cables.

[0011] Optionally, a protection pad is also included, and the protection pad is arranged between any two of the floating bodies.

[0012] Optionally, the protective pad is a rubber protective pad.

[0013] Optionally, the mooring cable is a fiber rope or an anchor chain.

[0014] Optionally, the photovoltaic assembly is fixed to the upper surface of the floating body through an auxiliary bracket.

[0015] Optionally, the platform cross beam and the platform longitudinal beam are steel pipes, and the platform cross beam and the platform longitudinal beam are fixed by welding.

[0016] Optionally, the ends and welding points of the platform cross beam and the platform longitudinal beam are sealed by sealing materials.

[0017] Optionally, the surfaces of the platform cross beam and the platform longitudinal beam are sprayed with anti-corrosion material.

[0018] Optionally, the interior of the float is filled with foaming material.

[0019] Optionally, the connecting pipe is a PVC pipe.

[0020] The present application provides an offshore photovoltaic power generation platform, including: photovoltaic components, frame platforms, floating bodies, connecting components, mooring cables and anchor foundations; the frame platform includes platform cross beams and platform longitudinal beams, which divide the frame platform into multiple platform sections; multiple floating bodies are arranged in each platform section, and the floating bodies are connected by connecting components, and the photovoltaic components are fixed on the floating bodies; the connecting components include connecting ropes and connecting pipes, which are fixed inside the floating bodies and pass through the floating bodies at both ends, one end of the connecting rope is connected to the platform cross beam or platform longitudinal beam on one side of the platform section, and the other end is connected to the platform cross beam or platform longitudinal beam on the other side of the platform section after passing through the connecting pipes of multiple floating bodies in turn; the frame platform is connected to the anchor foundation by a mooring cable. By dividing the frame platform into multiple platform sections for layout, the space utilization rate is effectively improved; at the same time, the floating body is effectively constrained and fixed by the connection of the connecting pipe and the connecting rope, which effectively improves the overall safety and operation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1A schematic diagram of the structure of an offshore photovoltaic power generation platform provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of the offshore photovoltaic power generation platform framework platform provided in the embodiment of the present application;

[0024] Figure 3 A schematic diagram of the cross-sectional structure of an offshore photovoltaic power generation platform float provided in an embodiment of the present application;

[0025] Figure 4 Schematic diagram of the connection structure between floating bodies of an offshore photovoltaic power generation platform provided in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1- PV panel; 2- floating body; 3- mooring cable; 4- anchor foundation; 5- platform cross beam; 6- platform longitudinal beam; 7- connecting pipe; 8- connecting rope; 9- protection pad; 10- auxiliary support.

[0028] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0030] Secondly, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0031] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] Offshore photovoltaic power generation platform is a solar power generation system supported by a floating structure on the sea surface. This platform takes advantage of the vast sea area and abundant sunshine, and realizes photovoltaic power generation on the ocean by installing solar photovoltaic panels on a special floating structure.

[0033] Since the offshore environment and loads are more complex and severe, when designing a water-based photovoltaic power generation system, more issues that do not need to be considered in the design of onshore photovoltaic power generation and water-based photovoltaic power generation need to be considered, including the strength and stability requirements of the overall platform structure under the combined effects of strong winds, currents, and waves.

[0034] Existing floating photovoltaic power generation platforms usually connect multiple floats together and install photovoltaic modules on the floats. This connection method has major problems in terms of strength and stability. Due to the harsh conditions of the offshore environment, such as strong winds, currents and waves, the harsh environment is often accompanied by extreme weather conditions such as strong winds, huge waves, and heavy rains. These natural forces cause huge impacts and pressures on the floating structure. Strong winds will cause the floating structure to be subjected to lateral forces, so that the floating structure is prone to continuous damage.

[0035] Therefore, the inventor proposes an offshore photovoltaic power generation platform to solve the problem of poor strength and stability of the overall structure of the existing floating photovoltaic power generation platform.

[0036] The present application is described in detail below with reference to the accompanying drawings and specific embodiments:

[0037] Figure 1 A schematic diagram of the structure of an offshore photovoltaic power generation platform provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of the offshore photovoltaic power generation platform framework platform provided in the embodiment of the present application; Figure 3 A schematic diagram of the cross-sectional structure of an offshore photovoltaic power generation platform float provided in an embodiment of the present application; Figure 4 Schematic diagram of the connection structure between floating bodies of an offshore photovoltaic power generation platform provided in an embodiment of the present application.

[0038] Reference Figures 1 to 4 As shown, an offshore photovoltaic power generation platform provided in an embodiment of the present application includes: a photovoltaic component 1, a frame platform, a floating body 2, a connection component, a mooring cable 3 and an anchor foundation 4.

[0039] Specifically, the frame platform is used to provide the main rigidity to ensure the overall stability and safety; the floating body 2 is used to provide sufficient buoyancy to support the structure and weight of the entire platform; there are multiple anchor foundations 4, which are evenly distributed around the frame platform to ensure the stability and safety of the platform under natural effects such as wind, waves, and currents. The anchor foundation 4 includes pile anchors, ship anchors, block anchors, etc., which can be selected according to actual conditions and needs.

[0040] The frame platform includes a platform cross beam 5 and a platform longitudinal beam 6, and the platform cross beam 5 and the platform longitudinal beam 6 divide the frame platform into a plurality of platform sections.

[0041] Specifically, the platform cross beam 5 and the platform longitudinal beam 6 are fixed together to effectively disperse and withstand various forces from the photovoltaic module 1 and the external environment. At the same time, dividing the frame platform into multiple platform sections can more conveniently layout and install the photovoltaic module 1, making the space utilization of the entire system more efficient; it is convenient to manage and maintain different platform sections separately; when local damage or failure occurs, it helps to locate and handle the problem more accurately and reduce the impact on the whole.

[0042] A plurality of floating bodies 2 are arranged in each platform interval, the floating bodies 2 are connected by connecting components, and the photovoltaic components 1 are fixed on the floating bodies 2 .

[0043] Specifically, the floating bodies 2 are connected by connecting components, which ensures their coordinated work and fixed relative positions, and prevents large shaking or displacement on the water surface; the photovoltaic components 1 are fixed on the floating bodies 2, realizing the effective combination of photovoltaic power generation and floating platforms on the water, which not only makes full use of the water space, but also allows the photovoltaic components 1 to adapt to the fluctuations of the water surface with the floating bodies 2. At the same time, the photovoltaic components 1 are easily installed, maintained and replaced by connecting the connecting components.

[0044] The connecting assembly includes a connecting rope 8 and a connecting pipe 7. The connecting pipe 7 is fixed inside the floating body 2 and both ends pass through the floating body 2. One end of the connecting rope 8 is connected to the platform crossbeam 5 or the platform longitudinal beam 6 on one side of the platform interval, and the other end passes through the connecting pipes 7 of multiple floating bodies 2 in sequence and is connected to the platform crossbeam 5 or the platform longitudinal beam 6 on the other side of the platform interval.

[0045] Specifically, the connecting pipe 7 allows the connecting rope 8 to smoothly pass through multiple floating bodies 2, playing a role of series connection and fixation. By connecting one end of the connecting rope 8 to the crossbeam or longitudinal beam on one side of the platform interval, and the other end passing through the connecting pipes 7 of multiple floating bodies 2 and connecting to the other side, an effective constraint and fixation is formed, so that the floating bodies 2 can maintain a relatively stable position within a certain range, reduce excessive drift and shaking, and help improve overall safety and operational stability. The number of connecting pipes 7 inside each floating body 2 can be two or more, which can be adjusted according to stability requirements. If the floating bodies 2

[0046] The frame platform and the anchor foundation 4 are connected via a mooring cable 3 .

[0047] Specifically, by connecting the frame platform to the anchor foundation 4 through the mooring cable 3, the frame platform can maintain a relatively fixed position on the water surface, reducing the risk of significant movement or shaking due to factors such as water flow, wind and waves.

[0048] The mooring cable 3 plays a role of pulling and fixing, which can enhance the stability and safety of the entire system. The mooring cable 3 can be adjusted in length and strength according to actual needs to adapt to different water environments and usage requirements.

[0049] An offshore photovoltaic power generation platform provided in an embodiment of the present application effectively improves space utilization by dividing the frame platform into multiple platform intervals for layout; at the same time, the floating body 2 is effectively restrained and fixed through the cooperation of the connecting pipe 7 and the connecting rope 8, effectively improving the overall safety and operational stability.

[0050] In some embodiments, a protection pad 9 is further included, and the protection pad 9 is arranged between any two floating bodies 2.

[0051] Specifically, the protection pad 9 can reduce the damage caused by direct collision and friction between the floating bodies 2, and extend the service life of the floating bodies 2; the protection pad 9 can play a certain buffering role when subjected to external impact, reducing the impact on the floating bodies 2 and the entire structure.

[0052] In some embodiments, the protective pad 9 is a rubber protective pad.

[0053] Specifically, the rubber protective pad 9 has good elasticity and wear resistance, can buffer the impact force well, and effectively protect the float 2; it also has a certain corrosion resistance and can adapt to the harsh marine environment; at the same time, the material of the rubber protective pad is relatively soft and can fit closely to the surface of the float 2, providing better protection effect.

[0054] In some embodiments, the mooring line 3 is a fiber rope or an anchor chain.

[0055] Specifically, fiber ropes are relatively light, soft, easy to operate and arrange; anchor chains are strong and durable, and can provide stronger pulling force and stability; they can be selected and adjusted according to actual environmental needs.

[0056] In some embodiments, the photovoltaic assembly 1 is fixed to the upper surface of the floating body 2 via an auxiliary bracket 10 .

[0057] Specifically, the auxiliary support 10 provides solid support for the photovoltaic modules 1, ensuring that they remain stable under the action of wind and waves and other natural forces, and ensuring the normal operation and power generation efficiency of the power generation platform.

[0058] The auxiliary bracket 10 is an angle-adjustable bracket, which allows the photovoltaic panel to adjust its tilt angle according to the altitude of the sun so as to capture more solar energy, thereby increasing the power generation efficiency. The auxiliary bracket 10 effectively improves the efficiency of replacing or repairing the photovoltaic panel. The auxiliary bracket 10 is an application of the existing bracket here, and its structure is not described in detail.

[0059] The auxiliary bracket 10 is made of corrosion-resistant materials, such as stainless steel, aluminum alloy or specially treated steel, so as to adapt to the salt spray and humidity of the marine environment.

[0060] In some embodiments, the platform cross beam 5 and the platform longitudinal beam 6 are steel pipes, and the platform cross beam 5 and the platform longitudinal beam 6 are fixed by welding.

[0061] Specifically, the platform cross beam 5 and the platform longitudinal beam 6 are welded to form a stable frame structure, which helps to reduce movement or looseness at the joints, thereby increasing the safety of the entire structure.

[0062] Welded joints are more durable than bolted or other mechanical connections and are less susceptible to weathering or mechanical damage, effectively reducing maintenance requirements.

[0063] In some embodiments, the ends and welding points of the platform cross beam 5 and the platform longitudinal beam 6 are sealed by sealing materials.

[0064] Specifically, the sealed platform cross beam 5 and platform longitudinal beam 6 provide a passage for the platform, and the hollow structure thereof can add a certain amount of buoyancy. At the same time, the sealing treatment can protect these key parts from erosion by the marine environment, prevent water from penetrating into the structure, reduce damage caused by moisture, and ensure the durability and safety of the structure.

[0065] Sealing materials can be epoxy resin and polyurethane sealant. Epoxy resin has excellent bonding and waterproof properties, and can fit tightly to the surface of the steel pipe to form a solid protective layer. Polyurethane sealant has good elasticity and weather resistance, and can adapt to temperature changes at sea and possible structural displacement.

[0066] In some embodiments, the surfaces of the platform cross beam 5 and the platform longitudinal beam 6 are sprayed with anti-corrosion materials.

[0067] Specifically, by spraying the anti-corrosion material, the platform beams 5 and the platform longitudinal beams 6 can be effectively protected from corrosion in the marine environment, thereby extending their service life and maintaining the integrity of the structure, and reducing the maintenance frequency. The anti-corrosion material should be selected according to the actual situation, and the material that can adapt to the environment of high salt spray, high temperature difference and high humidity should be selected.

[0068] In some embodiments, the interior of the float 2 is filled with foaming material.

[0069] Specifically, the surface of the floating body 2 is made of high-performance concrete material, polymer material, etc., and the inside thereof is filled with foaming material to increase the buoyancy of the floating body 2, improve its stability, and ensure that the photovoltaic module 1 can stably float on the water surface. The foaming material can be selected from polyurethane foam material or polypropylene foam material according to demand, wherein the polyurethane foam material has good buoyancy and thermal insulation properties, and can also provide a certain structural strength; the polypropylene foam material is light in weight, has good water resistance and chemical corrosion resistance, and is suitable for long-term exposure to the marine environment.

[0070] In some embodiments, the connecting pipe 7 is a PVC pipe.

[0071] Specifically, PVC pipes have good tolerance to seawater and most chemicals; and PVC pipes have sufficient strength and toughness to withstand the mechanical stress caused by wind and waves and the movement of the floating body 2; at the same time, PVC pipes have a long service life and good aging resistance, which can effectively reduce the replacement frequency and reduce maintenance costs.

[0072] The connecting rope 8 is a rope body made of wear-resistant cable or other wear-resistant materials. The wear-resistant cable can maintain stable performance even under continuous mechanical stress and environmental erosion, ensuring that the connection between the floating body 2 and the frame platform has sufficient strength and durability to withstand the harsh marine environment.

[0073] Those skilled in the art will easily conceive of other implementations of the present application after considering the specification and practicing the technical solutions disclosed herein.

[0074] This application is intended to cover any modifications, uses or adaptive changes of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the technical field that are not disclosed in this application.

[0075] The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the claims. It should be understood that the present application is not limited to the precise structures that have been described and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. An offshore photovoltaic power generation platform, characterized in that: include: Photovoltaic modules, frame platforms, buoys, connection components, mooring cables and anchor foundations; The frame platform includes a platform crossbeam and a platform longitudinal beam, and the platform crossbeam and the platform longitudinal beam divide the frame platform into a plurality of platform sections; A plurality of floating bodies are arranged in each platform interval, the floating bodies are connected by the connecting components, and the photovoltaic components are fixed on the floating bodies; The connection assembly includes a connection rope and a connection pipe, wherein the connection pipe is fixed inside the floating body and both ends of the connection pipe pass through the floating body, one end of the connection rope is connected to the platform cross beam or the platform longitudinal beam on one side of the platform interval, and the other end passes through the connection pipes of multiple floating bodies in sequence and is connected to the platform cross beam or the platform longitudinal beam on the other side of the platform interval; The frame platform and the anchor foundation are connected via mooring cables.

2. The offshore photovoltaic power generation platform according to claim 1, characterized in that: It also includes a protection pad, which is arranged between any two of the floating bodies.

3. The offshore photovoltaic power generation platform according to claim 2, characterized in that: The protection pad is a rubber protection pad.

4. The offshore photovoltaic power generation platform according to claim 1, characterized in that: The mooring line is a fiber rope or an anchor chain.

5. The offshore photovoltaic power generation platform according to claim 1, characterized in that: The photovoltaic assembly is fixed to the upper surface of the floating body through an auxiliary bracket.

6. The offshore photovoltaic power generation platform according to claim 1, characterized in that: The platform cross beam and the platform longitudinal beam are steel pipes, and the platform cross beam and the platform longitudinal beam are fixed by welding.

7. The offshore photovoltaic power generation platform according to claim 6, characterized in that: The ends and welding points of the platform cross beam and the platform longitudinal beam are sealed by sealing materials.

8. The offshore photovoltaic power generation platform according to claim 6, characterized in that: The surfaces of the platform cross beam and the platform longitudinal beam are sprayed with anti-corrosion material.

9. The offshore photovoltaic power generation platform according to any one of claims 1 to 8, characterized in that: The interior of the float is filled with foaming material.

10. The offshore photovoltaic power generation platform according to any one of claims 1 to 8, characterized in that: The connecting pipe is a PVC pipe.

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