Buoyancy device and power station thereof

Abstract

The utility model belongs to the field of photovoltaic technology, and particularly relates to a buoyancy device and a power station thereof, comprising a photovoltaic platform which is a polygonal structure composed of a plurality of triangular units; wherein each triangular unit comprises a truss and a photovoltaic module; the buoys are connected to the truss in series; the buoyancy assemblies are sequentially connected with the side wall of the truss; by arranging the buoyancy assembly, the steel frame assembly in the buoyancy assembly is used for resisting the wave load and the pulling force of the mooring rope, so that the overall structural performance of the photovoltaic platform is protected; a floating body in the buoyancy assembly further improves buoyancy for the photovoltaic platform, and the stability of the photovoltaic platform working on the sea is improved; the connection mode of the internal structure of the buoyancy assembly and the connection mode of the buoyancy assembly and the photovoltaic platform are set to be a hinged mode, stress generated by waves on the photovoltaic platform structure in different directions can be released, the wave following performance is good, and the service life of the photovoltaic platform can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaics, and in particular relates to a buoyancy device and a power station thereof. Background Art

[0002] Due to factors such as evaporation of water vapor at sea, strong sea breezes, and good heat dissipation, the theoretical value of photovoltaic platform power generation efficiency is higher than that of traditional power stations. In addition, the development of offshore photovoltaics is in line with the concept of environmental protection and will be widely developed and applied. In order to enable photovoltaic platforms to float on the sea for power generation, floating structures are usually required. The floating photovoltaic platforms proposed in related technologies are prone to wave penetration and even immersion in the sea when encountering strong winds and waves, which will cause impact or even damage to the components.

[0003] Therefore, it is necessary to provide a buoyancy device that can prevent the photovoltaic platform from piercing the waves. Utility Model Content

[0004] The purpose of the utility model is to provide a buoyancy device.

[0005] In order to solve the above technical problems, the utility model provides a buoyancy device, including: a photovoltaic platform, a polygonal structure composed of a plurality of triangular units; wherein the triangular units include a truss and a photovoltaic assembly; a plurality of buoys, each buoy is connected in series on the truss; and a buoyancy assembly is connected in sequence to the side walls of the truss.

[0006] Furthermore, the buoyancy assembly includes a steel frame assembly and a floating body, the steel frame assembly is connected to the truss, and the floating body is installed on the steel frame assembly.

[0007] Furthermore, the steel frame assembly includes a plurality of first steel frames and a plurality of pairs of second steel frames, the second steel frames are arranged at the angles of the first steel frames; the first steel frames include a plurality of pairs of first side beams and a plurality of first hinges, the second steel frames include a plurality of pairs of second side beams and a plurality of second hinges; wherein, bolts pass through the first hinges and the second hinges to connect the first steel frame and the second steel frame, bolts pass through the adjacent second hinges to connect the adjacent second steel frames, and the floating body is installed in the frames of the first steel frame and the second steel frame.

[0008] Furthermore, a plurality of third hinges are provided on the side walls of the truss, and bolts pass through the third hinges and the first hinges to connect the truss with the first steel frame.

[0009] Furthermore, first square tubes are provided at both ends of the first side beams, and a plurality of first bolt holes are provided on the first square tubes, wherein bolts pass through the first bolt holes to connect the first side beams to each other.

[0010] Furthermore, second square tubes are provided at both ends of the second side beams, and a plurality of second bolt holes are provided on the second square tubes, wherein bolts pass through the second bolt holes to connect the second side beams to each other.

[0011] Furthermore, the first square tube is welded to the first side beam, and the second square tube is welded to the second side beam.

[0012] Furthermore, a plurality of first frames are arranged inside the first steel frame, and the floating body is arranged inside the first frames.

[0013] Furthermore, a plurality of second frames are arranged inside the second steel frame, and the floating body is arranged inside the second frames.

[0014] Furthermore, the buoy is made of polyethylene.

[0015] Furthermore, the surface of the buoy adopts an anti-slip pattern design.

[0016] Furthermore, the material of the float is high molecular weight high density polyethylene.

[0017] Furthermore, the utility model provides a power station, comprising any one of the buoyancy devices described above.

[0018] Beneficial effects of the utility model:

[0019] 1. By setting up a photovoltaic platform, the photovoltaic platform is used to receive sunlight to generate electricity; the truss is in a triangular shape, which has the advantages of being light, high-strength and good rigidity, and can stably set up photovoltaic modules, providing a good working environment for the photovoltaic platform; the photovoltaic modules are installed in the truss and can generate electricity by absorbing light energy;

[0020] 2. By setting up buoys, the buoys can provide buoyancy, which significantly increases the buoyancy of the photovoltaic platform, preventing the photovoltaic platform from being immersed in the sea water after being impacted by waves, thus protecting the photovoltaic platform;

[0021] 3. By setting up the buoyancy component, the steel frame component inside the buoyancy component is used to resist the wave load and the tension of the mooring cable, thereby protecting the overall structural performance of the photovoltaic platform; the floating body inside the buoyancy component further enhances the buoyancy of the photovoltaic platform and improves the stability of the photovoltaic platform at sea; by setting the internal structure connection of the buoyancy component and the connection method with the photovoltaic platform to be hinged, the stress generated by the waves on the photovoltaic platform structure in different directions can be released, the wave-following performance is good, the platform air gap is positive, the working condition is good, the occurrence of wave piercing is prevented, the service life of the photovoltaic platform can be increased, and the maintenance cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the photovoltaic platform and buoyancy assembly of the utility model;

[0024] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0025] Figure 3 It is a structural schematic diagram of the buoy and truss of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the first steel frame of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the second steel frame of the utility model;

[0028] Figure 6 It is a schematic diagram of the change of the air gap of the photovoltaic platform without using the utility model;

[0029] Figure 7 It is a schematic diagram of the air gap change of the photovoltaic platform using the utility model.

[0030] In the figure:

[0031] Photovoltaic platform, 2. pontoon, 3. buoyancy assembly, 4. truss, 5. floating body, 6. first steel frame, 61. first frame, 7. second steel frame, 71. second frame, 8. first square tube, 9. second square tube, 10. first side beam, 11. first hinge, 12. second hinge, 13. second side beam, 14. third hinge. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In some embodiments, Figures 1 to 5As shown, a buoyancy device includes: a photovoltaic platform 1, a polygonal structure composed of a plurality of triangular units; wherein the triangular units include a truss 4 and a photovoltaic module; a plurality of pontoons 2, each pontoon 2 is connected in series on the truss 4; a buoyancy module 3, connected to the side walls of the truss 4 in sequence. The photovoltaic platform 1 is provided, and the photovoltaic platform 1 is used to receive solar power generation; the truss 4 is triangular in shape, has the advantages of being light, high-strength and good in rigidity, and can stably set up photovoltaic modules (not shown in the figure), providing a good working environment for the photovoltaic platform 1; the photovoltaic modules are installed in the truss 4, and can generate electricity by absorbing light energy; the buoy 2 is provided, and the buoy 2 can provide buoyancy, which significantly increases the buoyancy of the photovoltaic platform 1, prevents the photovoltaic platform 1 from being immersed in seawater after being impacted by waves, and protects the photovoltaic platform 1; the buoyancy component 3 is provided, and the steel frame component in the buoyancy component 3 is used to resist the wave load and the tension of the mooring cable, thereby protecting the overall structural performance of the photovoltaic platform 1; the float 5 in the buoyancy component 3 further increases the buoyancy of the photovoltaic platform 1, and improves the stability of the photovoltaic platform 1 working at sea; the internal structure connection mode of the buoyancy component 3 and the connection mode with the photovoltaic platform 1 are set in an articulated mode, so that the stress generated by waves on the structure of the photovoltaic platform 1 in different directions can be released, the wave-following property is good, and the service life of the photovoltaic platform 1 can be increased, and the maintenance cost can be reduced.

[0034] The buoyancy assembly 3 includes a steel frame assembly and a float 5, the steel frame assembly is connected to the truss, and the float 5 is installed on the steel frame assembly; the steel frame assembly is a polygonal structure, the internal structure is stable and is connected to the truss 4 of the photovoltaic platform 1 by a hinged manner, which can resist the stress of waves and prevent the interior of the photovoltaic platform 1 from being damaged, thereby increasing the service life of the photovoltaic platform 1; the float 5 is installed in the steel frame assembly by bolt fixing, which can provide additional buoyancy for the photovoltaic platform 1 and prevent the photovoltaic platform 1 from being submerged in the sea.

[0035] The steel frame assembly includes a plurality of first steel frames 6 and a plurality of pairs of second steel frames 7, wherein the second steel frames 7 are arranged at the angle of the first steel frames 6; the first steel frames 6 include a plurality of pairs of first side beams 10 and a plurality of first hinges 11, and the second steel frames 7 include a plurality of pairs of second side beams 13 and a plurality of second hinges 12; wherein, bolts pass through the first hinges 11 and the second hinges 12 to connect the first steel frames 6 and the second steel frames 7, and bolts pass through the adjacent second hinges 12 to connect the adjacent second steel frames 7, and the floating body 5 is installed in the frame of the first steel frame 6 and the second steel frame 7.

[0036] The side wall of the truss 4 is provided with a plurality of third hinges 14 , and bolts pass through the third hinges 14 and the first hinges 11 to connect the truss 4 to the first steel frame 6 .

[0037] First square tubes 8 are provided at both ends of the first side beams 10, and a plurality of first bolt holes (not shown in the figure) are provided on the first square tubes 8, wherein bolts pass through the first bolt holes to connect the first side beams 10 to each other; the angles between the first square tubes 8 are adapted, and when the first square tubes 8 are connected, they will fit each other, so that the first side beams 10 can be firmly connected.

[0038] Second square tubes 9 are provided at both ends of the second side beams 13, and a plurality of second bolt holes (not shown in the figure) are provided on the second square tubes 9, wherein bolts pass through the second bolt holes to connect the second side beams 13 to each other; the angles between the second square tubes 9 are adapted, and when the second square tubes 9 are connected, they will fit together, so that the second side beams 13 can be firmly connected.

[0039] The first square tube 8 is welded to the first side beam 10 , and the second square tube 9 is welded to the second side beam 13 . The welding method has simple and reliable process and low cost, and can ensure that the first square tube 8 is stably connected to the first side beam 10 , and the second square tube 9 is stably connected to the second side beam 13 .

[0040] A plurality of first frames 61 are arranged inside the first steel frame 6, and the floating body 5 is arranged inside the first frames 61. The first frames 61 have a reliable structure and can stably set up the floating body 5. The floating body 5 is installed in the first frames 61 by bolts. The installation structure is simple and firm, and the floating body 5 works stably and can provide good buoyancy.

[0041] A plurality of second frames 71 are arranged inside the second steel frame 7, and the float 5 is arranged inside the second frames 71; the second frames 71 have a reliable structure and can stably erect the float 5, and the float 5 is installed in the second frame 71 by bolt fixing, the installation structure is simple and firm, the float 5 works stably and can provide good buoyancy.

[0042] The material of the buoy 2 is polyethylene; the buoy 2 is light in weight, filled with polystyrene foam, has good corrosion resistance, long service life, reduces maintenance costs, and reduces consumption of manpower and material resources.

[0043] The surface of the buoy 2 is designed with an anti-slip pattern, and the four corners are all arc-shaped blunt-angle reinforcement ribs. The structure is safe and stable, which improves the stability of the buoy 2.

[0044] The material of the float 5 is high molecular weight high density polyethylene; the high molecular weight high density polyethylene material has the advantages of light weight, good buoyancy, good weather resistance and UV resistance, long service life, and almost no maintenance is required except for strong natural forces and improper human use, and the maintenance cost is low.

[0045] A power station comprises any one of the buoyancy devices described above.

[0046] In some other embodiments, see Figure 6 and Figure 7 , hydrodynamic calculation simulation was performed through ANSYS AQWA (multi-body fluid dynamics software), and the simulation conditions were set as follows: wave height 6.5m, period 9 seconds, and wave incident angle 90°; under the same cable length, the following were obtained: Figure 6 Schematic diagram of air gap change of photovoltaic platform without using the utility model and Figure 7 Schematic diagram of the change of the air gap of the photovoltaic platform using the utility model; it can be clearly seen that when the photovoltaic platform of the utility model is not used, the platform air gap has a negative value, that is, the platform has a wave penetration phenomenon, which causes impact and damage to the components, while when the photovoltaic platform of the utility model is used, the platform air gap is positive and the working condition is good, which proves the beneficial effect of the utility model.

[0047] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A buoyancy device, characterized in that: include: Photovoltaic platform, a polygonal structure composed of several triangular units; wherein the triangular unit comprises a truss and a photovoltaic module; A plurality of buoys, each buoy is connected in series to the truss; The buoyancy assembly is connected to the side walls of the truss in sequence.

2. A buoyancy device according to claim 1, characterized in that: The buoyancy assembly comprises a steel frame assembly and a floating body, wherein the steel frame assembly is connected to the truss, and the floating body is installed on the steel frame assembly.

3. A buoyancy device according to claim 2, characterized in that: The steel frame assembly includes a plurality of first steel frames and a plurality of pairs of second steel frames, wherein the second steel frames are arranged at the angles of the first steel frames; the first steel frames include a plurality of pairs of first side beams and a plurality of first hinges, and the second steel frames include a plurality of pairs of second side beams and a plurality of second hinges; wherein, Bolts pass through the first hinge and the second hinge to connect the first steel frame and the second steel frame, bolts pass through adjacent second hinges to connect adjacent second steel frames, and the floating body is installed in the frames of the first steel frame and the second steel frame.

4. A buoyancy device as claimed in claim 3, characterized in that: The side wall of the truss is provided with a plurality of third hinges, and bolts pass through the third hinges and the first hinges to connect the truss with the first steel frame.

5. A buoyancy device as claimed in claim 4, characterized in that: The first side beam is provided with first square tubes at both ends, and the first square tubes are provided with a plurality of first bolt holes, wherein: Bolts pass through the first bolt holes to connect the first side beams to each other.

6. A buoyancy device according to claim 5, characterized in that: The two ends of the second side beam are provided with a second square tube, and the second square tube is provided with a plurality of second bolt holes, wherein: Bolts pass through the second bolt holes to connect the second side beams to each other.

7. A buoyancy device according to claim 6, characterized in that: The first square tube is welded to the first side beam, and the second square tube is welded to the second side beam.

8. A buoyancy device according to claim 7, characterized in that: A plurality of first frames are arranged inside the first steel frame, and the floating body is arranged inside the first frames.

9. A buoyancy device according to claim 8, characterized in that: A plurality of second frames are arranged inside the second steel frame, and the floating body is arranged inside the second frames.

10. A buoyancy device according to claim 9, characterized in that: The material of the buoy is polyethylene.

11. A buoyancy device according to claim 10, characterized in that: The surface of the float adopts an anti-skid pattern design.

12. A buoyancy device according to claim 11, characterized in that: The material of the float is high molecular weight high density polyethylene.

13. A power station, characterized in that: A buoyancy device comprising any one of claims 1-12.

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