Offshore photovoltaic wave-absorbing synergistic device

By combining the design of the turret assembly and the breakwater, the seawater is atomized by the water flow channel for cooling, and the wave energy is reduced through the energy consumption unit, the problems of instability and low power generation efficiency of offshore photovoltaic platforms in high sea conditions are solved, and the problem of low power generation efficiency of offshore photovoltaic platforms is achieved. More efficient and stable photovoltaic power generation.

CN119210328APending Publication Date: 2024-12-27CHINA POWER INVESTMENT POWER ENG CO LTD
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Patent Information

Application Number
CN202411316050.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2024-12-27

AI Technical Summary

Technical Problem

Existing offshore photovoltaic platforms are unstable under high sea conditions, have low power generation efficiency and lack of effective cooling solutions, resulting in high construction and maintenance costs.

Method used

A wave-removing and enhancing device including a turret assembly, a breakwater and an offshore photovoltaic assembly was designed. It is connected by a rotating module and a fixed module. The breakwater is equipped with a support module and a cooling module, and the seawater is atomized by a water flow channel for cooling, and through The energy consumption unit reduces wave energy, and the turret assembly drives the breakwater to rotate to maintain balance.

Benefits of technology

It improves the stability and efficiency of photovoltaic power generation, reduces the complexity of platform design and construction and maintenance costs, solves the high-temperature efficiency problems through atomization and cooling, and reduces the impact of wave impact on components.

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Abstract

The invention provides an offshore photovoltaic wave-absorbing synergistic device, which comprises a rotating tower assembly, a wave-absorbing component, a wave-absorbing component and a wave-absorbing component, the rotating tower assembly is provided with a rotating module and a fixing module, the rotating module is connected with the fixing module, and the rotating tower assembly is fixed on the sea level through the fixing module; the breakwater is connected with the rotating module, the breakwater is provided with a supporting module and a cooling module, the supporting module is provided with an energy consumption unit, waves are subjected to energy consumption and atomization through the cooling module, and the atomized waves flow through the offshore photovoltaic module to cool the offshore photovoltaic module; the offshore photovoltaic module is connected with the breakwater; when waves push the turret assembly to rotate, the whole device rotates along with rotation of the turret assembly, the offshore photovoltaic assembly is kept balanced on the water surface, the problem that the offshore photovoltaic assembly is low in power generation efficiency under the conditions of large sea waves and high temperature is solved, and the stability and the power generation efficiency of photovoltaic power generation are improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of offshore energy power generation, and more specifically to an offshore photovoltaic wave-breaking and efficiency-enhancing device. Background Art

[0002] As the global demand for renewable energy grows, offshore photovoltaic power generation has gradually become an important way to solve energy problems. However, offshore photovoltaic platforms face many challenges, especially the impact of ocean waves and the disturbance of wind and waves, which will directly affect the power generation efficiency of photovoltaic modules and the structural stability of the platform. At the same time, the power generation efficiency of photovoltaic modules will drop significantly in high temperature environments. How to solve these problems through innovative design has become a technical problem that needs to be solved urgently. Specifically, the existing offshore photovoltaic platform designs generally lack effective wave weakening devices, which makes the platform unstable under high sea conditions, thereby affecting the power generation efficiency of photovoltaic modules. When photovoltaic modules work in high temperature environments, their efficiency will be greatly reduced, and existing technologies have failed to provide effective cooling solutions. Due to the strong impact of waves on the platform, the support structure of existing photovoltaic platforms usually needs to be designed to be very strong, resulting in high construction and maintenance costs.

[0003] The high air gap platform design adopts the method of increasing the platform depth to avoid the impact of waves on the platform, but this will greatly increase the cost and reduce the gain effect of water cooling on photovoltaic panel power generation. The low air gap design directly contacts the wave surface, and the membrane structure has a very obvious displacement, and at the same time faces the problem of water accumulation on the waves. Summary of the invention

[0004] The present invention provides an offshore photovoltaic wave-breaking and efficiency-enhancing device, which aims to solve the problem of slow power generation efficiency of offshore photovoltaic modules under conditions of large sea waves and high temperature, and to improve the stability and power generation efficiency of photovoltaic power generation.

[0005] To achieve the above-mentioned purpose, the present invention provides an offshore photovoltaic wave elimination and efficiency enhancement device, comprising:

[0006] A turret assembly, wherein the turret assembly is provided with a rotating module and a fixing module, the rotating module is connected to the fixing module, and the turret assembly is fixed on the sea level through the fixing module;

[0007] A breakwater, wherein the breakwater is connected to the rotating module, the breakwater is provided with a supporting module and a cooling module, the supporting module is provided with an energy consumption unit, the waves are energy consumed and atomized through the cooling module, and the atomized waves flow through the offshore photovoltaic module to cool the offshore photovoltaic module;

[0008] An offshore photovoltaic assembly connected to the breakwater;

[0009] When the waves push the turret assembly to rotate, the entire device rotates along with the rotation of the turret assembly, so that the offshore photovoltaic module remains balanced on the water surface.

[0010] In one embodiment, the rotating module comprises a ring, the fixed module comprises a cylinder, and the ring rotates around the cylinder.

[0011] In one embodiment, a connecting cable is provided between the breakwater and the circular ring, one end of the connecting cable is connected to the circular ring, and the other end is connected to the breakwater, so that the circular ring drives the breakwater to rotate.

[0012] In one embodiment, the cooling module comprises a water flow channel, and the water flow channel is arranged inside the supporting module.

[0013] In one embodiment, the diameter of the water flow channel at the inlet is larger than that at the outlet, and the outlet faces obliquely upward and rearward, so that seawater passes through the water flow channel and uses the natural kinetic energy of the seawater to accelerate and atomize the seawater to cool the offshore photovoltaic modules.

[0014] In one embodiment, the energy consumption unit is a slope sloping upward along a horizontal plane, with the downhill side of the slope facing the turret assembly and the uphill side of the slope facing the offshore photovoltaic assembly to consume energy from waves.

[0015] In one embodiment, the offshore photovoltaic assembly includes a deck unit, a vertical support unit and a buoy unit, wherein the deck unit is disposed above the vertical support unit, the buoy unit is disposed below the vertical support unit, the deck unit is equipped with a photovoltaic assembly, and the buoy unit provides buoyancy.

[0016] In one embodiment, the breakwater and the offshore photovoltaic assembly are connected via a connecting cable.

[0017] In one embodiment, the cylindrical body is provided with a buoyancy unit.

[0018] In one embodiment, the turret assembly is connected to the seabed via a mooring rope to limit the position of the turret assembly.

[0019] The present invention has the following beneficial effects:

[0020] High efficiency: The water flow channel in the breakwater of the present invention can atomize the water from the waves, and the atomized water covers the offshore photovoltaic modules to cool the offshore photovoltaic modules, thereby avoiding the influence of high temperature on the power generation efficiency and making the output of the photovoltaic modules more stable and effective.

[0021] High stability: The turret assembly and breakwater in the present invention can effectively weaken wave energy, and the breakwater significantly reduces the impact of wave impact on offshore photovoltaic modules by blocking and dispersing wave energy, reduces the vibration of the device, and improves the stability of photovoltaic power generation.

[0022] Simple structure: By weakening the wave force, the strength requirements for the platform support structure are reduced, the platform design is simplified, and the overall construction and maintenance costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of an offshore photovoltaic wave elimination and efficiency enhancement device according to an embodiment of the present invention;

[0024] Figure 2 It is a schematic side view of the structure of an offshore photovoltaic wave elimination and efficiency enhancement device according to an embodiment of the present invention;

[0025] Figure 3 It is a partial enlarged structural schematic diagram of an offshore photovoltaic wave elimination and efficiency enhancement device according to an embodiment of the present invention;

[0026] Figure 4 It is a schematic structural diagram of a rotating module driving a device to rotate in an offshore photovoltaic wave elimination and efficiency enhancement device according to an embodiment of the present invention;

[0027] Figure 5 It is a schematic diagram of the working principle of the cooling module of the offshore photovoltaic wave absorption and efficiency enhancement device according to one embodiment of the present invention.

[0028] Among them, 1 is a turret assembly; 1.1 is a cylinder; 1.2 is a ring; 2 is a breakwater; 2.1 is an energy consumption unit; 2.2 is a water flow channel; 3 is an offshore photovoltaic assembly; 3.1 is a deck unit; 3.2 is a vertical support unit; and 3.3 is a buoy unit. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the embodiment of this application will be described in more detail below in conjunction with the drawings in the embodiment of this application. In the drawings, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be construed as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] Figure 1 The structure diagram of an offshore photovoltaic wave elimination and efficiency enhancement device according to an embodiment of the present invention is as follows. The offshore photovoltaic wave elimination and efficiency enhancement device comprises:

[0031] A turret assembly 1, wherein the turret assembly 1 is provided with a rotating module and a fixing module, wherein the rotating module is connected to the fixing module, and the turret assembly 1 is fixed on the sea level through the fixing module;

[0032] The breakwater 2 is connected to the rotating module, and is provided with a supporting module and a cooling module. The supporting module is provided with an energy consumption unit 2.1. The waves are energy-consumed and atomized through the cooling module, and the atomized waves flow through the offshore photovoltaic module 3 to cool the offshore photovoltaic module 3.

[0033] An offshore photovoltaic assembly 3, wherein the offshore photovoltaic assembly 3 is connected to the breakwater 2;

[0034] When the waves push the turret assembly 1 to rotate, the entire device rotates along with the rotation of the turret assembly 1, so that the offshore photovoltaic assembly 3 remains balanced on the water surface.

[0035] Specifically, the turret assembly 1 can adjust the direction of the entire device according to the incident angle of the wave, such as Figure 1 As shown, when the waves are transformed from a horizontal direction to an inclined direction, under the action of the torque provided by the environmental load, the turret assembly 1 drives the breakwater 2 to rotate through the rotating module, and the breakwater 2 drives the offshore photovoltaic assembly 3, so that the entire device maintains a balanced state in the horizontal plane, thereby increasing the stability of the entire device at sea level.

[0036] Furthermore, the breakwater 2 can cool the offshore photovoltaic components 3 through the cooling module on the one hand, and can maximize the blocking of wave energy through the energy consumption unit 2.1 on the other hand, thereby reducing the energy transmitted to the offshore photovoltaic components 3.

[0037] Furthermore, the support module plays a supporting and stabilizing role to ensure the integrity and safety of the breakwater 2 structure.

[0038] In one embodiment, the rotating module comprises a ring 1.2, the fixed module encloses a cylinder 1.1, and the ring 1.2 rotates around the cylinder 1.1.

[0039] In one embodiment, a connecting cable is provided between the breakwater 2 and the circular ring 1.2, one end of the connecting cable is connected to the circular ring 1.2, and the other end of the connecting cable is connected to the breakwater 2, so that the circular ring 1.2 drives the breakwater 2 to rotate.

[0040] Specifically, the turret type connects the entire device, which can further simplify the support part. Due to the weakening wave energy of the breakwater 2 and the balancing ability of the turret type, the material usage and construction difficulty required for the support are reduced.

[0041] Furthermore, a plurality of connecting cables may be provided, and the number of connecting cables may be determined according to actual needs.

[0042] In one embodiment, the cooling module comprises a water flow channel 2.2, and the water flow channel 2.2 is arranged inside the supporting module.

[0043] In one embodiment, the diameter of the water flow channel 2.2 at the inlet is larger than that at the outlet, and the outlet faces obliquely upward and backward, so that seawater passes through the water flow channel 2.2 and uses the natural kinetic energy of the seawater to accelerate and atomize the seawater to cool the offshore photovoltaic module 3.

[0044] Specifically, Figure 2 As shown, the wave will propagate from the left to the right, and will first interact with the slope of the breakwater 2, so the wave after passing the breakwater 2 will be significantly smaller than the original wave. Secondly, the breakwater 2 is designed with a water flow channel 2.2 with a variable diameter. Under the action of the wave propagation energy, part of the water flow with high kinetic energy will enter the channel. As the channel narrows, the flow rate further increases, and the final outflow channel is a fine water mist structure with a higher speed. Under the action of gravity, it subsequently falls downward into the offshore photovoltaic deck area. The direct contact between the water droplets and the photovoltaic panels can take away a large amount of heat, increasing the water cooling benefits.

[0045] In one embodiment, the energy consumption unit 2.1 is a slope sloping upward along a horizontal plane, with the downhill side of the slope facing the turret assembly 1 and the uphill side of the slope facing the offshore photovoltaic assembly 3 to consume energy from waves.

[0046] Specifically, the slope further disperses the energy of the waves reaching the offshore photovoltaic components 3 by blocking the waves, resulting in a significant reduction in the energy of the waves moving toward the offshore photovoltaic components 3, significantly reducing the impact of wave impacts on the offshore photovoltaic components 3, thereby reducing the swing amplitude of the platform.

[0047] In one embodiment, the offshore photovoltaic assembly 3 includes a deck unit 3.1, a vertical support unit 3.2 and a buoy unit 3.3, wherein the deck unit 3.1 is placed above the vertical support unit 3.2, and the buoy unit 3.3 is placed below the vertical support unit 3.2, the deck unit 3.1 is installed with a photovoltaic assembly, and the buoy unit 3.3 provides buoyancy.

[0048] Specifically, the vertical support unit and the buoy unit 3.3 are combined to enable the offshore photovoltaic assembly 3 to maintain a draft.

[0049] Furthermore, the buoy unit 3.3 is an important component in the offshore photovoltaic system for increasing buoyancy and assisting stability. They are usually made of lightweight, high-strength materials, such as polyethylene, polyurethane foam, etc., and have good buoyancy and corrosion resistance. The buoy unit 3.3 can provide buoyancy. The buoyancy generated by the buoy can reduce the load pressure of the vertical support unit and reduce the requirements for underwater infrastructure. On the other hand, under the action of external forces such as water flow, wind and waves, the buoy unit 3.3 can assist the vertical support unit to maintain the stable position of the photovoltaic module to prevent damage or efficiency loss caused by shaking or tilting. Moreover, the design of the buoy unit 3.3 usually has a certain degree of flexibility, and can automatically adjust the draft of the photovoltaic module as the water level changes, so as to maintain the system in a stable floating state in the water area.

[0050] Vertical support units are the key parts of offshore photovoltaic installations that bear the main load and structural stability. These units are usually designed as solid steel structures or composite materials with sufficient strength and rigidity to withstand the impact of natural environmental factors such as wind, waves, and water currents.

[0051] The combined use of the vertical support unit and the buoy unit 3.3 gives full play to their respective advantages and jointly realizes the stable floating and efficient power generation of the offshore photovoltaic module 3 in the water.

[0052] The vertical support unit provides a solid support platform and necessary vertical stability for the photovoltaic modules;

[0053] The buoy unit 3.3 further enhances the wind and wave resistance and adaptability of the entire system by providing buoyancy and auxiliary stability.

[0054] The combination of the two enables the offshore photovoltaic module 3 to maintain a certain draft depth, which helps to reduce the direct impact of waves on the photovoltaic panel and reduce maintenance costs.

[0055] In one embodiment, the breakwater 2 and the offshore photovoltaic assembly 3 are connected via a connecting cable.

[0056] Specifically, the connecting cable can effectively transfer the stability of the breakwater 2 to the offshore photovoltaic module 3, reducing the shaking and tilting of the photovoltaic module caused by natural factors such as waves and wind, thereby improving its stability.

[0057] Furthermore, the connecting cable is usually made of high-strength, corrosion-resistant and wear-resistant materials, such as steel wire ropes, synthetic fiber ropes, etc. These materials can withstand various erosions and tensions in the marine environment, ensuring long-term reliability.

[0058] Furthermore, the diameter and strength of the connecting cable need to be determined according to the weight of the PV module, sea conditions and design requirements. Generally speaking, cables with larger diameters and higher strength can provide better stability and safety. The length of the connecting cable needs to be adjusted according to the actual installation location and sea conditions to ensure that the PV module can maintain appropriate draft and stability.

[0059] In one embodiment, the cylindrical body 1.1 is provided with a buoyancy unit.

[0060] Specifically, the buoyancy unit provides buoyancy for the turret assembly 1, so that the turret assembly 1 can rotate as the wave angle changes.

[0061] In one embodiment, the turret assembly 1 is connected to the seabed via a mooring rope to limit the position of the turret assembly 1.

[0062] Specifically, the number of mooring ropes can be set according to actual operation, and for example, three mooring ropes can be selected.

[0063] Furthermore, three mooring ropes firmly connect the turret assembly 1 to the seabed, effectively limiting the displacement of the turret assembly 1 on the horizontal plane and ensuring its stability under the action of natural forces such as wind, waves and currents.

[0064] Under extreme weather conditions, the mooring rope can prevent the turret assembly 1 from capsizing or drifting due to external forces, thereby ensuring the safety of the entire marine engineering facility.

[0065] In addition to the limiting function, the mooring rope also plays a certain structural supporting role, helping to share the weight of the turret assembly 1 and its superstructure, and improving the stability of the entire system.

[0066] Furthermore, mooring ropes are usually made of high-strength, corrosion-resistant and wear-resistant materials, such as steel cables, synthetic fiber cables, etc. These materials can withstand various erosions and tensions in the marine environment, ensuring long-term reliability.

[0067] The diameter and strength of the mooring rope need to be determined according to the weight, sea conditions and design requirements of the turret assembly 1. Generally speaking, a rope with a larger diameter and higher strength can provide better limiting effect and safety.

[0068] The layout and tension adjustment of the mooring rope are also important links in the design. Reasonable layout can ensure the stability of the turret assembly 1 in all directions; and appropriate tension can prevent failure caused by the rope being too loose or too tight.

[0069] The present invention has the following beneficial effects:

[0070] High efficiency: The water flow channel in the breakwater of the present invention can atomize the water from the waves, and the atomized water covers the offshore photovoltaic modules to cool the offshore photovoltaic modules, thereby avoiding the influence of high temperature on the power generation efficiency and making the output of the photovoltaic modules more stable and effective.

[0071] High stability: The turret assembly and breakwater in the present invention can effectively weaken wave energy, and the breakwater significantly reduces the impact of wave impact on offshore photovoltaic modules by blocking and dispersing wave energy, reduces the vibration of the device, and improves the stability of photovoltaic power generation.

[0072] Simple structure: By weakening the wave force, the strength requirements for the platform support structure are reduced, the platform design is simplified, and the overall construction and maintenance costs are reduced.

[0073] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0074] It should be noted that, in the present application, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. It should also be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0075] In addition, it should be noted that, unless otherwise clearly specified and limited, words such as "connect" and "drive" used in the description of this application should be understood in a broad sense, which can be direct, through an intermediate medium, or the relationship between two elements. Technical personnel in the field can understand their specific meanings in this application based on the specific circumstances.

[0076] The above embodiments are provided for persons familiar with the art to implement or use the present application. Personnel familiar with the art can make various modifications or changes to the above embodiments without departing from the application concept of the present application. Therefore, the protection scope of the present application is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. An offshore photovoltaic wave elimination and efficiency enhancement device, characterized in that: The offshore photovoltaic wave elimination and efficiency enhancement device comprises: A turret assembly, wherein the turret assembly is provided with a rotating module and a fixing module, the rotating module is connected to the fixing module, and the turret assembly is fixed on the sea level through the fixing module; A breakwater, wherein the breakwater is connected to the rotating module, the breakwater is provided with a supporting module and a cooling module, the supporting module is provided with an energy consumption unit, the waves are energy consumed and atomized through the cooling module, and the atomized waves flow through the offshore photovoltaic module to cool the offshore photovoltaic module; An offshore photovoltaic assembly connected to the breakwater; When the waves push the turret assembly to rotate, the entire device rotates along with the rotation of the turret assembly, so that the offshore photovoltaic module remains balanced on the water surface.

2. The offshore photovoltaic wave elimination and efficiency enhancement device according to claim 1, characterized in that: The rotating module comprises a ring, the fixed module comprises a cylinder, and the ring rotates around the cylinder.

3. The offshore photovoltaic wave elimination and efficiency enhancement device according to claim 2, characterized in that: A connecting cable is arranged between the breakwater and the circular ring, one end of the connecting cable is connected to the circular ring, and the other end is connected to the breakwater, so that the circular ring drives the breakwater to rotate.

4. The offshore photovoltaic wave elimination and efficiency enhancement device according to claim 1, characterized in that: The cooling module comprises a water flow channel, and the water flow channel is arranged inside the supporting module.

5. The offshore photovoltaic wave elimination and efficiency enhancement device according to claim 4, characterized in that: The diameter of the water flow channel at the inlet is larger than the diameter of the outlet, and the outlet faces obliquely upward and backward, so that seawater passes through the water flow channel and uses the natural kinetic energy of the seawater to accelerate and atomize the seawater, thereby cooling the offshore photovoltaic components.

6. The offshore photovoltaic wave elimination and efficiency enhancement device according to claim 1, characterized in that: The energy consumption unit is a slope sloping upward along a horizontal plane, with the downhill side of the slope facing the turret assembly and the uphill side of the slope facing the offshore photovoltaic assembly, so as to consume energy from waves.

7. The offshore photovoltaic wave elimination and efficiency enhancement device according to claim 1, characterized in that: The offshore photovoltaic assembly comprises a deck unit, a vertical support unit and a buoy unit. The deck unit is placed above the vertical support unit, the buoy unit is placed below the vertical support unit, and the deck unit is equipped with a photovoltaic assembly.

8. The offshore photovoltaic wave elimination and efficiency enhancement device according to claim 3, characterized in that: The breakwater and the offshore photovoltaic assembly are connected via a connecting cable.

9. The offshore photovoltaic wave elimination and efficiency enhancement device according to claim 2, characterized in that: The cylinder is provided with a buoyancy unit.

10. The offshore photovoltaic wave elimination and efficiency enhancement device according to claim 1, characterized in that: The turret assembly is connected to the seabed via a mooring rope to limit the position of the turret assembly.

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