A marine photovoltaic power generation platform

Abstract

The present application relates to a kind of offshore photovoltaic power generation platform, including float and photovoltaic assembly, float is air bag structure, support is provided on the float;Photovoltaic assembly is arranged on support. Compared with prior art, the offshore photovoltaic power generation platform of the present application, photovoltaic assembly is used to receive light energy, and light energy is converted into electric energy, photovoltaic assembly is placed on the support of float, offshore photovoltaic power generation is realized. Since float adopts air bag structure filled with gas, its weight is far less than conventional float, the overall weight of platform is significantly reduced, so the volume of float can be reduced under the condition of ensuring the floating capacity of platform, which is beneficial to reduce the construction materials of platform, thereby reducing the manufacturing cost of platform;Meanwhile, support can elevate the distance between photovoltaic assembly and sea surface, to avoid damage to photovoltaic assembly by sea wave.

Description

TECHNICAL FIELD

[0001] The present application relates to a power generation platform, in particular to a marine photovoltaic power generation platform. BACKGROUND

[0002] Since the 20th century, with the rapid development of social economy, the demand for energy in countries around the world has increased dramatically. In order to solve the depletion of non-renewable energy resources and the deterioration of the environment, finding alternative, renewable and clean new energy has become the consensus of all countries in the world. As the main body of 70% of the earth's area, the ocean not only has abundant marine resources, oil resources, but also contains huge energy. Marine energy mainly exists in the form of tides, waves, temperature differences, salinity gradients, and ocean currents. The utilization of marine energy has great potential, and it is of great significance to increase the development and research of marine energy. In addition, offshore photovoltaic is another important form of offshore energy utilization. Compared with land photovoltaic, offshore photovoltaic has natural environmental advantages, such as open water without obstructions, longer sunshine and full utilization, which can significantly improve power generation. The power generation of offshore photovoltaic is 5%-10% higher than that of land photovoltaic, and it occupies less land and is easy to combine with other industries. China has abundant offshore photovoltaic resources, and the theoretical offshore photovoltaic development capacity is nearly 700 million kilowatts. Developing clean energy such as offshore photovoltaic is an important way for China to achieve the "double carbon" goal.

[0003] Current domestic floating photovoltaic is basically built in clean lakes and reservoirs, and the wind and wave is very small, with a wave height of less than 2m. Offshore floating photovoltaic is different from lake photovoltaic and reservoir photovoltaic, and it is subjected to more severe wind and wave conditions, with a wave height of more than 7m. According to the understanding, the current cost of floating water photovoltaic is about 5000 yuan / kW, and it is predicted that the cost of offshore photovoltaic will be 10000 yuan / kW. It can be seen that the increase in cost is mainly caused by the floating structure. Therefore, it is necessary to develop an economically applicable and excellent floating offshore photovoltaic platform. SUMMARY

[0004] The purpose of the present application is to overcome the defects of the prior art and provide a marine photovoltaic power generation platform to reduce the manufacturing cost of the photovoltaic platform.

[0005] The purpose of the present application can be realized by the following technical solutions:

[0006] A marine photovoltaic power generation platform comprises:

[0007] A floating body, which is a gas bag structure, is provided with a support member;

[0008] A photovoltaic assembly is arranged on the support member.

[0009] In one of the embodiments, the air bag structure comprises a first air bag and a plurality of second air bags, and the plurality of second air bags are arranged in the first air bag.

[0010] In one of the embodiments, the air bag structure is a PVC air bag structure, and the support is a PVC support.

[0011] In one of the embodiments, the photovoltaic module comprises a panel support and a photovoltaic panel, the panel support is connected with the support, and the photovoltaic panel is arranged on the panel support.

[0012] In one of the embodiments, the photovoltaic panel is a folding photovoltaic panel, comprising a first photovoltaic panel and a second photovoltaic panel, and the panel support is provided with a hinge shaft, and the second photovoltaic panel is connected with the first photovoltaic panel through the hinge shaft.

[0013] In one of the embodiments, the platform comprises a connecting piece, and a plurality of floating bodies are arranged, and the connecting piece connects the plurality of floating bodies.

[0014] In one of the embodiments, a plurality of auxiliary air bags are arranged between the connecting piece and the photovoltaic module.

[0015] In one of the embodiments, the floating body comprises two first floating bodies and two second floating bodies, the first floating body is a long strip-shaped floating body, the second floating body is a cylindrical floating body, the connecting piece comprises a plurality of first connecting pieces, and two ends of the connecting piece are connected with the first floating body and the second floating body respectively to form a regular hexagon.

[0016] In one of the embodiments, the floating body comprises a third floating body, the third floating body is a cylindrical floating body, the third floating body is arranged at the geometric center of the regular hexagon, the connecting piece comprises a second connecting piece and a third connecting piece, two ends of the second connecting piece are connected with the third floating body and the first floating body respectively, and two ends of the third connecting piece are connected with the third floating body and the second floating body respectively.

[0017] In one of the embodiments, the support comprises a plurality of supports, which are a first support, a second support and a third support respectively, the first support, the second support and the third support are arranged on the first floating body, the second floating body and the third floating body respectively, two ends of the first connecting piece are connected with the bottom of the first support and the bottom of the second support respectively, two ends of the second connecting piece are connected with the top of the first support and the bottom of the third support respectively, and two ends of the third connecting piece are connected with the top of the second support and the bottom of the third support respectively.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. The offshore photovoltaic power generation platform as claimed in the above, the photovoltaic component is used for receiving light energy and converting the light energy into electric energy, the photovoltaic component is placed on the support of the floating body, and offshore photovoltaic power generation is realized. Since the floating body adopts the gas-filled air bag structure, the weight of the floating body is far less than that of the traditional floating body, the weight of the floating body is significantly reduced, therefore, the volume of the floating body can be reduced under the condition of ensuring the floating capacity of the platform, which is beneficial to reducing the construction raw materials of the platform, thereby reducing the manufacturing cost of the platform; meanwhile, the support can raise the distance between the photovoltaic component and the sea surface, and avoid damage of the photovoltaic component caused by wave beating.

[0020] 2. The air bag and the support are both made of PVC material, the density of PVC is only 18% of that of steel, under the condition of the same structure, the weight of the platform is reduced by 80%, the overall weight of the platform is reduced, the volume of the floating body can be further reduced, the manufacturing cost is reduced, and PVC has strong oxidation resistance and corrosion resistance, which is beneficial to improving the service life of the platform.

[0021] 3. The photovoltaic panel adopts the folding photovoltaic panel, the second photovoltaic panel is hinged with the first photovoltaic panel, therefore, the included angle between the second photovoltaic panel and the first photovoltaic panel can be adjusted, which is used for adapting to different sunlight directions, and improving the power generation efficiency of the photovoltaic power generation platform.

[0022] 4. The plurality of floating bodies are connected through the connecting piece, and the auxiliary air bag is arranged between the connecting piece and the photovoltaic component, the connecting strength between the plurality of floating bodies is increased, the platform structure stability is avoided from being affected by the wind and wave, and the floating capacity of the platform is improved.

[0023] 5. The first floating body, the second floating body, the third floating body, the first connecting piece, the second connecting piece and the third connecting piece are cooperated with each other, the first connecting piece, the second connecting piece and the third connecting piece form a connecting triangle, and the first floating body, the second floating body and the third floating body are connected respectively, the symmetric structure makes the force of each part of the platform uniform, the connecting structure failure caused by the wind and wave is avoided, and the floating performance of the offshore photovoltaic power generation platform is further improved.

[0024] 6. The first support, the second support, the third support, the first floating body, the second floating body, the third floating body, the first connecting piece, the second connecting piece and the third connecting piece are cooperated with each other, therefore, the first connecting piece, the third connecting piece and the support form a supporting triangle, which is beneficial to improving the supporting capacity of the photovoltaic component, and facilitating the arrangement of the auxiliary air bag between the connecting piece and the photovoltaic component. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a top view of the offshore photovoltaic power generation platform in the present application.

[0026] Figure 2 It is a top view of the offshore photovoltaic power generation platform (hidden photovoltaic component) in the present application.

[0027] Figure 3 This is a front view of the offshore photovoltaic power generation platform in this invention.

[0028] Figure 4 This is a side view of the offshore photovoltaic power generation platform in this invention.

[0029] Reference numerals: 100, photovoltaic power generation platform; 10, floating body; 11, first floating body; 12, second floating body; 13, third floating body; 20, support component; 21, first support component; 22, second support component; 23, third support component; 30, photovoltaic module; 31, first photovoltaic panel; 32, second photovoltaic panel; 33, panel bracket; 34, hinge shaft; 35, driving component; 36, auxiliary airbag; 40, connector; 41, first connector; 42, second connector; 43, third connector. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0031] The following describes in detail some embodiments of the offshore photovoltaic power generation platform 100 with reference to the accompanying drawings.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in one embodiment, an offshore photovoltaic power generation platform 100 is provided, including a float 10, a support member 20, and a photovoltaic module 30;

[0033] The float 10 is an airbag structure filled with gas; the support 20 is mounted on the float 10; and the photovoltaic module 30 is mounted on the support 20.

[0034] The aforementioned offshore photovoltaic power generation platform 100 uses photovoltaic modules 30 to receive solar energy and convert it into electrical energy. The photovoltaic modules 30 are placed on the support members 20 of the floating body 10, thus realizing offshore photovoltaic power generation. Because the floating body 10 uses a gas-filled airbag structure, its weight is much less than that of a traditional floating body 10. This significant weight reduction allows for a reduction in the volume of the floating body 10 while maintaining the platform's buoyancy, which helps reduce the amount of raw materials needed for platform construction and thus lowers the platform's manufacturing cost. Simultaneously, the support members 20 raise the distance between the photovoltaic modules 30 and the sea surface, preventing damage to the photovoltaic modules 30 from waves.

[0035] The support component 20 is more than 7m high, so the photovoltaic module 30 is more than 7m above the sea surface, which gives the offshore photovoltaic power generation platform 100 good wave resistance and effectively avoids the impact of waves on the photovoltaic panel.

[0036] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment, the platform includes a connector 40, and multiple floats 10 are provided, with the connector 40 connecting the multiple floats 10.

[0037] Among them, such as Figure 4 As shown, multiple auxiliary airbags 36 are provided between the connector 40 and the photovoltaic module 30. Connecting multiple floats 10 through the connector 40 and providing auxiliary airbags 36 between the connector 40 and the photovoltaic module 30 helps to improve the platform's balance performance and buoyancy.

[0038] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment, the float 10 is provided with two first floats 11 and two second floats 12. The first floats 11 are elongated floats 10, and the second floats 12 are cylindrical floats 10. The connector 40 includes a plurality of first connectors 41. The two ends of the connector 40 are respectively connected to the first floats 11 and the second floats 12 to form a regular hexagon. The two first floats 11 are respectively located on two opposite sides of the regular hexagon, and the two second floats 12 are respectively located on two opposite vertices of the regular hexagon.

[0039] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment, the float 10 is provided with a third float 13, which is a cylindrical float 10 located at the geometric center of a regular hexagon. The connecting member 40 includes a second connecting member 42 and a third connecting member 43. The two ends of the second connecting member 42 are respectively connected to the third float 13 and the first float 11, and the two ends of the third connecting member 43 are respectively connected to the third float 13 and the second float 12. The first float 11, the second float 12, and the third float 13 cooperate with the first connecting member 41, the second connecting member 42, and the third connecting member 43, forming a connecting triangle that connects the first float 11, the second float 12, and the third float 13 respectively. The symmetrical structure ensures that the platform is subjected to uniform stress, avoids connection failure caused by wind and waves, and further improves the floating performance of the offshore photovoltaic power generation platform 100.

[0040] Furthermore, such as Figure 1 , Figure 2 and Figure 3As shown, in one embodiment, the support member 20 is provided with multiple members, namely a first support member 21, a second support member 22 and a third support member 23. The first support member 21, the second support member 22 and the third support member 23 are respectively provided on the first float 11, the second float 12 and the third float 13. The two ends of the first connector 41 are respectively connected to the bottom of the first support member 21 and the bottom of the second support member 22. The two ends of the second connector 42 are respectively connected to the top of the first support member 21 and the bottom of the third support member 23. The two ends of the third connector 43 are respectively connected to the top of the second support member 22 and the bottom of the third support member 23. The first support member 21, the second support member 22, and the third support member 23 cooperate with the first float 11, the second float 12, the third float 13, the first connector 41, the second connector 42, and the third connector 43. Therefore, the first connector 41, the third connector 43, and the support member 20 form a support triangle, which is beneficial to improving the support capacity of the photovoltaic module 30, and at the same time facilitates the setting of the auxiliary airbag 36 between the connector 40 and the photovoltaic module 30.

[0041] In this specific embodiment, in the top view, a first support member 21 is provided at each end of the first float 11. The first float 11 and the third float 13 are connected by two second connectors 42. The first support member 21 and the second connector 42 correspond one-to-one, so that the two second connectors 42 and the first float 11 form a stable triangle, which helps to improve the stability of the connection between the first float 11 and the third float 13. At the same time, the second connector 42, the third connector 43 and the first connector 41 form a stable triangle, and the first support member 21, the second support member 22 and the third support member 23 are located at the three vertices of the triangle, fixing the relative positions between the first float 11, the second float 12 and the third float 13, and improving the stability of the connection.

[0042] Furthermore, in one embodiment, the offshore photovoltaic power generation platform 100 also includes at least three tow cables, one end of which is connected to the float 10, and the other end of which is used for anchoring to the seabed. The tow cables are used to anchor the offshore photovoltaic power generation platform 100 to the seabed, restricting the position of the offshore photovoltaic power generation platform 100 and preventing it from drifting away.

[0043] Specifically, such as Figure 1 and Figure 3 As shown, in one embodiment, the photovoltaic module 30 includes a panel support 33 and a photovoltaic panel. The panel support 33 is connected to the support member 20, and the photovoltaic panel is disposed on the panel support 33.

[0044] Furthermore, in one embodiment, the photovoltaic panel is a foldable photovoltaic panel, including a first photovoltaic panel 31 and a second photovoltaic panel 32. A hinge shaft 34 is provided on the panel support 33, and the second photovoltaic panel 32 is connected to the first photovoltaic panel 31 via the hinge shaft 34. Because the photovoltaic panel is a foldable photovoltaic panel, and the second photovoltaic panel 32 is hinged to the first photovoltaic panel 31, the angle between the second photovoltaic panel 32 and the first photovoltaic panel 31 can be adjusted to adapt to different solar illumination directions, thereby improving the power generation efficiency of the photovoltaic power generation platform 100.

[0045] Among them, a driving component 35 is provided between the first photovoltaic panel 31, the second photovoltaic panel 32 and the panel support 33 to drive the first photovoltaic panel 31 and the second photovoltaic panel 32 to rotate around the hinge axis 34. In this specific embodiment, the driving component 35 can be a hydraulic cylinder, thereby driving the first photovoltaic panel 31 and the second photovoltaic panel 32 to rotate by extension and retraction.

[0046] Specifically, in one embodiment, the airbag structure includes a first airbag and a plurality of second airbags, all of which are disposed within the first airbag. The plurality of second airbags are independent of each other, preventing leakage from the first airbag from affecting the overall safe operation of the platform.

[0047] Specifically, in one embodiment, the airbag structure includes a PVC airbag structure, and the support member 20 includes a PVC support member. The connector 40 can also be a PVC connector. Both the airbag and the support member 20 are made of PVC material. PVC has a density only 18% that of steel. With the same structure, the platform weight is reduced by 80%, lowering the overall platform weight and allowing for further reduction in the volume of the float 10, thus lowering manufacturing costs. Furthermore, PVC has strong oxidation and corrosion resistance, which helps to extend the platform's service life.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0053] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An offshore photovoltaic power generation platform, characterized in that, include: The float (10) is an airbag structure and is provided with a support member (20). A photovoltaic module (30) is mounted on the support member (20); The airbag structure includes a first airbag and a plurality of second airbags, wherein the plurality of second airbags are disposed within the first airbag; The photovoltaic module (30) includes a panel support (33) and a photovoltaic panel. The panel support (33) is connected to the support member (20), and the photovoltaic panel is disposed on the panel support (33). The photovoltaic panel is a foldable photovoltaic panel, including a first photovoltaic panel (31) and a second photovoltaic panel (32). The panel support (33) is provided with a hinge shaft (34), and the first photovoltaic panel (31) and the second photovoltaic panel (32) are connected through the hinge shaft (34). A driving component (35) is provided between the first photovoltaic panel (31), the second photovoltaic panel (32) and the panel support (33) respectively, for driving the first photovoltaic panel (31) and the second photovoltaic panel (32) to rotate around the hinge axis (34); The driving component (35) is a hydraulic cylinder, which drives the first photovoltaic panel (31) and the second photovoltaic panel (32) to rotate by extension and retraction; The float (10) is provided with two first floats (11) and two second floats (12). The first floats (11) are elongated floats, and the second floats (12) are cylindrical floats. The connector (40) includes multiple first connectors (41). The two ends of the connector (40) are respectively connected to the first floats (11) and the second floats (12) to form a regular hexagon. The airbag structure is a PVC airbag structure, and the support member (20) and the connector are both PVC support members.

2. The offshore photovoltaic power generation platform according to claim 1, characterized in that, The platform includes a connector (40), and multiple floats (10) are provided. The connector (40) connects multiple floats (10).

3. The offshore photovoltaic power generation platform according to claim 2, characterized in that, Multiple auxiliary airbags (36) are provided between the connector (40) and the photovoltaic module (30).

4. The offshore photovoltaic power generation platform according to claim 1, characterized in that, The float (10) is provided with a third float (13), which is a cylindrical float and is located at the geometric center of the regular hexagon. The connector (40) includes a second connector (42) and a third connector (43). The two ends of the second connector (42) are respectively connected to the third float (13) and the first float (11), and the two ends of the third connector (43) are respectively connected to the third float (13) and the second float (12).

5. A marine photovoltaic power generation platform according to claim 4, characterized in that, The support member (20) is provided in multiple parts, namely a first support member (21), a second support member (22) and a third support member (23). The first support member (21), the second support member (22) and the third support member (23) are respectively provided on the first float (11), the second float (12) and the third float (13). The two ends of the first connector (41) are respectively connected to the bottom of the first support member (21) and the bottom of the second support member (22). The two ends of the second connector (42) are respectively connected to the top of the first support member (21) and the bottom of the third support member (23). The two ends of the third connector (43) are respectively connected to the top of the second support member (22) and the bottom of the third support member (23).

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