Offshore photovoltaic structure relying on offshore wind power single pile foundation

Abstract

The utility model discloses an offshore photovoltaic structure relying on an offshore wind power single pile foundation, which relates to the field of offshore photovoltaic technology combined with offshore wind power, and comprises a wind power single pile foundation and a photovoltaic module, the wind power single pile foundation comprises a pile foundation, a tower drum and a fan, and further comprises a top frame, a diagonal bracing frame and an operation and maintenance channel, the top frame circularly extends outwards with the pile foundation as the center, the diagonal bracing frame is located below the top frame and connected with the pile foundation and the top frame, the photovoltaic module is installed on the upper surface of the top frame, and the operation and maintenance channel is arranged in the radial direction of the upper surface of the top frame. According to the utility model, the offshore wind power single pile foundation is combined with the offshore photovoltaic power, so that the offshore wind power single pile foundation and the offshore photovoltaic power can complement each other under different time and weather conditions, 24-hour continuous power supply is provided, and the stability and diversification of energy supply are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore photovoltaics combined with offshore wind power, and in particular to an offshore photovoltaic structure based on an offshore wind power monopile foundation. Background Art

[0002] Photovoltaic power stations have traditionally been primarily located on land, but these occupy large areas and waste land resources. While deploying photovoltaic power stations in inland waters has become an important trend, the impact of shipping lanes and the limited inland water surface has led to a gradual shift toward offshore photovoltaic power stations. The combination of offshore photovoltaic and offshore wind power can complement each other at different times and weather conditions, providing 24-hour continuous power supply and increasing the stability and diversity of energy supply. By developing energy in marine space, coastal areas can effectively reduce their dependence on land resources and alleviate pressure on land resources. Offshore photovoltaic and offshore wind power also offer significant environmental advantages, producing no greenhouse gases or harmful pollutants, helping to reduce carbon emissions and address climate change.

[0003] Currently, various offshore "wind and solar co-development" schemes have emerged both domestically and internationally, but all are still at the conceptual design stage and lack practical application. This utility model aims to maximize the use of offshore wind farm monopile foundation structures, carry out the design and construction of offshore photovoltaic power generation, and promote the comprehensive utilization of marine energy. Utility Model Content

[0004] The purpose of this utility model is to provide an offshore photovoltaic structure based on an offshore wind power monopile foundation, so as to realize the co-development of offshore photovoltaic and offshore wind power and improve the efficiency of comprehensive utilization of marine energy.

[0005] The utility model is achieved through the following technical solutions.

[0006] The utility model provides an offshore photovoltaic structure based on an offshore wind power monopile foundation, comprising a wind power monopile foundation and a photovoltaic module. The wind power monopile foundation comprises a pile foundation, a tower and a wind turbine, and further comprises a top frame, a diagonal bracing frame and an operation and maintenance passage. The top frame extends outward in a circular shape with the pile foundation as the center, the diagonal bracing frame is located below the top frame and connects the pile foundation and the top frame, the photovoltaic module is mounted on the upper surface of the top frame, and the operation and maintenance passage is radially arranged along the upper surface of the top frame.

[0007] Furthermore, the pile foundation is fixed on the seabed bedrock.

[0008] Furthermore, the pile foundation is made of high-strength corrosion-resistant material.

[0009] Furthermore, the top frame extends outward in a circular shape and is composed of a plurality of radial beams and annular beams. The radial beams extend outward along the pile foundation, and the annular beams are arranged along the circumferential direction to form a grid structure.

[0010] Furthermore, the top frame is made of lightweight and high-strength material.

[0011] Furthermore, the top frame is provided with a ring beam that encircles the pile foundation. The ring beam is a segmented structure, and two adjacent segments are connected by bolts and gaskets. A clamp is provided circumferentially on the pile foundation, and the clamp consists of a clamping groove and a support rod. The ring beam is clamped in the clamping groove, and one end of the support rod is welded to the pile foundation, and the other end is fixed to the bottom of the clamping groove.

[0012] Furthermore, the diagonal bracing frame is composed of a plurality of diagonal bracing rods, one end of each of the diagonal bracing rods is connected to the pile foundation, and the other end is connected to the top frame, and they are arranged radially.

[0013] Furthermore, the diagonal bracing frame is made of corrosion-resistant material.

[0014] Furthermore, the photovoltaic components adopt monocrystalline silicon or polycrystalline silicon photovoltaic panels.

[0015] The beneficial effects of the utility model are:

[0016] (1) The utility model combines offshore wind power monopile foundation with offshore photovoltaic power generation, which can complement each other under different time and weather conditions, provide 24-hour continuous power supply, and increase the stability and diversification of energy supply.

[0017] (2) The photovoltaic structure of the present invention is modular in design. The wind power single pile foundation, top frame, and diagonal bracing frame can be split into multiple modules, which are convenient for marine transportation. The block-by-block lifting does not require large-scale ship machinery equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the axonometric drawing of the photovoltaic structure of the utility model;

[0019] Figure 2 This is the main view of the photovoltaic structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the segmented top frame of the utility model;

[0021] Figure 4 This is a schematic diagram of the ring beam of the utility model;

[0022] Figure 5 This is a schematic diagram of the segmented ring beam connection of the utility model;

[0023] Figure 6 This is a schematic diagram of the connection between the ring beam and the clamp of the utility model;

[0024] Figure 7 This is a schematic diagram of the connection between the top frame and the diagonal bracing frame of the utility model.

[0025] In the figure: wind turbine monopile foundation 1, top frame 2, ring beam 2-1, radial beam 2-2, vertical connecting rod 2-3, upper transverse connecting plate 2-4, bolt 2-5, diagonal bracing frame 3, lower transverse connecting plate 3-1, photovoltaic module 4, operation and maintenance channel 5, ring beam 6 / 8, bolt 6-1, gasket 6-2, slot 7-1, support rod 7-2. DETAILED DESCRIPTION

[0026] The following further describes the structures involved in the present invention or the technical terms used in these descriptions. These descriptions are merely examples of how the present invention is implemented and do not constitute any limitation to the present invention.

[0027] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "lateral," and "longitudinal" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the positions or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations of this utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to internal communication between two elements or an interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] like Figure 1-7 As shown, this embodiment introduces an offshore photovoltaic structure based on an offshore wind turbine monopile foundation, including a wind turbine monopile foundation 1, a top frame 2, a diagonal bracing frame 3, photovoltaic modules 4 and an operation and maintenance channel 5. The top frame 2 extends outward in a circular shape with the wind turbine monopile foundation 1 as the center. The diagonal bracing frame 3 is located below the top frame 2, connecting the wind turbine monopile foundation 1 and the top frame 2. The photovoltaic modules 4 are installed on the upper surface of the top frame 2. The operation and maintenance channel 5 is radially arranged along the upper surface of the top frame 2 with the wind turbine monopile foundation 1 as the center.

[0030] The wind power single pile foundation 1 includes a pile foundation, a tower and a wind turbine. The tower is installed on the pile foundation, and the wind turbine is installed on the tower. This is an existing technology and will not be described in detail here. The pile foundation is fixed to the bedrock on the seabed by a piling process. The pile foundation material is made of high-strength corrosion-resistant steel to adapt to the marine environment and prevent seawater erosion and biological attachment. The design height of the wind power single pile foundation 1 meets the requirement that the lower edge is flush with the height of the wind turbine pile top, and the diameter is designed and optimized according to the deflection requirements of the selected skeleton material to ensure that it can provide sufficient support and wind and wave resistance. There are gaps between the photovoltaic panels to reduce the supporting force of the wind load, and rainwater can seep to the bottom.

[0031] like Figure 3 As shown, the top frame 2 extends outward in a circular shape and is composed of multiple radial beams 2-2 and multiple circumferential beams 2-1. The radial beams 2-2 extend outward from the wind turbine monopile foundation 1, and the circumferential beams 2-1 are arranged along the circumferential direction to form a grid structure for supporting the photovoltaic modules 4. The top frame 2 is made of lightweight and high-strength materials, such as aluminum alloy or composite materials, which can not only reduce the overall weight but also provide sufficient strength and rigidity. The curved upper surface of the top frame 2 can reduce wind loads, and the geometric design of the top frame 2 optimizes the layout angle of the photovoltaic modules 4, maximizing the efficiency of capturing solar energy.

[0032] like Figure 2 As shown, the bracing frame 3 is composed of multiple bracing rods, each connected to the pile foundation at one end and to the top frame 2 at the other. These bracing rods are arranged radially to evenly distribute structural stress. The bracing frame 3 serves to increase the strength and stability of the overall structure, preventing the photovoltaic panels 4 from shaking and shifting under the impact of strong winds and waves. The bracing frame 3 is also made of corrosion-resistant steel, which is resistant to marine erosion. The bracing rods are connected by welding or bolts to form a rigid, integrated structure.

[0033] like Figure 3-6 As shown, the top frame 2 is a segmented structure, which is convenient for installation and disassembly. Each top frame 2 is provided with a ring beam 6, and two adjacent sections are connected by bolts 6-1 and gaskets 6-2. A clamp is set circumferentially on the pile foundation, and the clamp consists of a clamping groove 7-1 and a strut 7-2. The ring beam 6 is stuck in the clamping groove 7-1, and one end of the strut 7-2 is welded to the pile foundation, and the other end is fixed to the bottom of the clamping groove 7-1. The diagonal bracing frame 3 is also a segmented structure. Each diagonal bracing frame 3 is provided with a ring beam 8, and a clamp is set circumferentially on the pile foundation. The diagonal bracing frame 3 is fixed to the pile foundation by the ring beam and the clamp.

[0034] like Figure 7As shown, the top frame 2 and the diagonal bracing frame 3 are connected by bolts and are detachable. A vertical connecting rod 2-3 and an upper transverse connecting plate 2-4 are provided at the bottom of the top frame 2. One end of the vertical connecting rod 2-3 is welded to the top frame 2, and the other end is welded to the upper transverse connecting plate 2-4. The diagonal bracing frame 3 is welded to a lower transverse connecting plate 3-1, which is fixed to the upper transverse connecting plate 2-5 via bolts 2-5.

[0035] PV panels 4 are mounted on the grid of top frame 2, each secured to top frame 2 via brackets. PV panels 4 utilize high-efficiency monocrystalline or polycrystalline silicon photovoltaic panels, offering high conversion efficiency and durability. The alignment angle of PV panels 4 is calculated based on the location's latitude using the formula: optimal inclination angle = latitude × 0.87 + 3.4°, ensuring maximum sunlight reception and improved power generation efficiency.

[0036] The photovoltaic modules 4 are connected to each other by collecting the cables through a wire box, and then feeding them into the pile foundation through a cable duct, and then transporting them to the onshore power grid through a submarine cable.

[0037] like Figure 1 As shown, multiple operation and maintenance corridors 5 are evenly spaced to facilitate inspection and repairs by maintenance personnel. These corridors are equipped with inspection platforms and emergency escape facilities to improve operation and maintenance efficiency and safety. The design of these corridors takes into account convenient and safe passage. They are generally 0.6m wide and feature emergency lighting and rescue equipment at key locations.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An offshore photovoltaic structure based on an offshore wind turbine monopile foundation, comprising a wind turbine monopile foundation and photovoltaic modules, wherein the wind turbine monopile foundation comprises a pile foundation, a tower, and a wind turbine, and is characterized by: It also includes a top frame, a diagonal bracing frame and an operation and maintenance channel. The top frame extends outward in a circular shape with the pile foundation as the center. The diagonal bracing frame is located below the top frame and connects the pile foundation and the top frame. The photovoltaic components are installed on the upper surface of the top frame, and the operation and maintenance channel is arranged radially along the upper surface of the top frame.

2. The offshore photovoltaic structure based on an offshore wind power monopile foundation according to claim 1, characterized in that: The pile foundation is fixed on the seabed bedrock.

3. The offshore photovoltaic structure based on an offshore wind power monopile foundation according to claim 1, characterized in that: The pile foundation is made of high-strength corrosion-resistant material.

4. The offshore photovoltaic structure based on an offshore wind power monopile foundation according to claim 1, characterized in that: The top frame extends outward in a circular shape and is composed of a plurality of radial beams and annular beams. The radial beams extend outward along the pile foundation, and the annular beams are arranged along the circumferential direction to form a grid structure.

5. The offshore photovoltaic structure based on an offshore wind power monopile foundation according to claim 1, characterized in that: The top frame is made of light and high-strength material.

6. The offshore photovoltaic structure based on an offshore wind power monopile foundation according to claim 1, characterized in that: The top frame is provided with a ring beam that encircles the pile foundation. The ring beam is a segmented structure, and two adjacent segments are connected by bolts and gaskets. A clamp is provided in the annular direction of the pile foundation, and the clamp consists of a clamping groove and a strut. The ring beam is clamped in the clamping groove, and one end of the strut is welded to the pile foundation, and the other end is fixed to the bottom of the clamping groove.

7. The offshore photovoltaic structure based on an offshore wind power monopile foundation according to claim 1, characterized in that: The diagonal bracing frame is composed of a plurality of diagonal bracing rods, one end of each of the diagonal bracing rods is connected to the pile foundation, and the other end is connected to the top frame, and the rods are arranged radially.

8. The offshore photovoltaic structure based on an offshore wind power monopile foundation according to claim 1, characterized in that: The diagonal bracing frame is made of corrosion-resistant material.

9. The offshore photovoltaic structure based on an offshore wind power monopile foundation according to claim 1, characterized in that: The photovoltaic components adopt monocrystalline silicon or polycrystalline silicon photovoltaic panels.

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