An articulated fixed photovoltaic platform

Abstract

An articulated fixed photovoltaic platform belongs to the technical field of offshore structures and photovoltaic power generation structures. It includes a fixed marine platform, a bracket and a power generation device fixedly installed on the marine platform. The fixed marine platform includes four sub-platforms, an articulated device and an energy dissipation device. The sub-platform consists of a single pile foundation and a quadrilateral fixed steel frame, and the single pile foundation and the frame are connected by a diagonal brace. The articulated device is between two adjacent sub-platforms to ensure that the platform structure has good integrity. The energy dissipation device is placed on the upper and lower sides of the articulated device to effectively reduce structural vibration and improve fatigue life. The bracket inside the marine platform is used to support the power generation device. The articulated fixed offshore photovoltaic platform in the present invention is composed of four sub-platforms, each of which is a separate body and is connected to form a whole through hinges. The platform is provided with a vibration control device to make the platform have better stability and a stronger ability to withstand external environmental loads.

Description

Technical Field

[0001] The invention relates to offshore structures and photovoltaic power generation structure technologies, and in particular to an articulated fixed offshore photovoltaic platform. Background Art

[0002] In recent years, renewable energy has been increasingly valued in my country due to its advantages such as easy access, pollution-free and renewable. The development and utilization of solar energy has been scaled up and has gradually become an important part of my country's new energy industry. However, with the development of the domestic onshore photovoltaic industry, the development model based on large-scale photovoltaic power stations has gradually exposed many problems, such as the large area occupied by photovoltaic power generation equipment and the dense population in areas with good light resources. These problems have restricted the development of solar photovoltaic power generation.

[0003] In response to the problems encountered by solar photovoltaic power generation on land, moving the location of power generation from land to lakes and oceans has become a feasible solution. At the same time, photovoltaic panels installed on water through brackets can avoid excessive temperature of the power generation device, and the conversion efficiency of solar energy to electrical energy is greatly improved. In addition, building photovoltaic power stations on lakes and oceans can make it difficult for idle people and animals to stay away from photovoltaic power generation devices, better protect the power generation devices, and extend their service life.

[0004] At present, my country has realized solar photovoltaic power generation in ponds and small lakes, and has a certain scale. However, the insufficient area of ​​closed waters is still the main problem. Therefore, the development of solar photovoltaic power generation to offshore and even deep sea has become an inevitable trend. The external environment on the ocean is different from that of ponds and lakes, which means that photovoltaic power generation devices and supporting marine platforms need to face more severe environmental conditions and have higher design requirements. To this end, the present invention proposes an articulated fixed offshore photovoltaic platform. Summary of the invention

[0005] In view of the current difficulties in offshore photovoltaic design, the present invention discloses an articulated fixed offshore photovoltaic platform, which has a reasonable structure, good stability and strong ability to withstand external environmental loads. The platform has good economic benefits and simple construction, and provides a reliable solution for the implementation of photovoltaic power generation from land to sea.

[0006] The technical solution adopted by the present invention is: an articulated fixed offshore photovoltaic platform, which includes a power generation device; characterized in that: the fixed offshore platform includes four sub-platforms, and articulation devices and energy consumption devices are arranged at the end points of adjacent sub-platforms;

[0007] The sub-platform adopts a steel frame in which transverse beams and longitudinal beams are arranged. The center of the sub-platform is fixed on a single pile foundation. A single pile diagonal brace for reinforcement is arranged between the single pile foundation and the steel frame.

[0008] A bracket is arranged between the sub-platforms, and the bracket includes a column and a diagonal brace for a power generation device, one end of the diagonal brace for the power generation device is arranged on the top of the column, and the other end is arranged on a steel frame or a crossbeam; the power generation device is supported on the diagonal brace for the power generation device;

[0009] The endpoints of two adjacent sub-platforms are connected as one through a hinge device, the hinge device adopts a first fixed support fixed to the first sub-platform, and a second fixed support fixed to the second sub-platform, and the first fixed support and the second fixed support are hinged through a ball joint bearing;

[0010] Two sets of energy dissipation devices are arranged diagonally above and below the hinge device, respectively. The energy dissipation devices use two iron wires to connect the two ends of an SMA wire through a clamp, and the SMA wire is a Ti-Ni shape memory alloy wire. One iron wire of the energy dissipation device is fixed on one sub-platform, and the other iron wire is fixed on another sub-platform adjacent to the sub-platform.

[0011] The diagonal brace of the power generation device is divided into a first diagonal brace and a second diagonal brace symmetrically distributed around the column.

[0012] The two sets of energy dissipation devices arranged diagonally cross each other at the center of the SMA wire, which has a diameter of 1 mm.

[0013] The included angle between the diagonal brace and the crossbeam of the power generation device is determined according to the longitude and latitude of the sea area where the fixed offshore photovoltaic platform is located, and an inclination angle is adopted so that the symmetrically arranged power generation device can obtain the maximum annual solar radiation in one year.

[0014] The single pile foundation is a steel hollow columnar structure, the single pile diagonal brace is a hollow steel pipe that has been treated with anti-corrosion, and the column and the diagonal brace of the power generation device are composed of hollow steel pipes.

[0015] Each longitudinal beam is welded at the center of the length of the cross beam and at the cross intersection formed; the upper part of the single pile foundation is welded to the cross intersection of the cross beams and longitudinal beams in the quadrilateral fixed steel frame into a whole.

[0016] The single pile foundation is connected to four frames of the steel frame through single pile diagonal braces, and the welding positions are between the midpoint of the frame length and the middle of the single pile foundation, and between the four end points of the frame and the upper part of the single pile foundation.

[0017] An articulated fixed offshore photovoltaic platform includes a fixed offshore platform, a bracket fixedly mounted on the offshore platform, and a power generation device. The fixed offshore platform includes four sub-platforms, an articulated device, and an energy dissipation device. The sub-platforms are connected by an articulated device to ensure that the platform structure has good integrity. The sub-platforms are composed of a single pile foundation and a quadrilateral fixed steel frame, and the single pile foundation and the frame are connected by a diagonal brace. The energy dissipation device is placed on the upper and lower sides of the articulated device. The bracket inside the offshore platform is used to support the power generation device.

[0018] The sub-platform single pile foundation is a hollow columnar steel pipe structure; the upper portion of the single pile foundation is welded to the quadrilateral fixed steel frame.

[0019] The sub-platform quadrilateral fixed steel frame is a hollow steel pipe frame that has been treated with anti-corrosion. The quadrilateral fixed steel frame is provided with cross beams and longitudinal beams. The cross beams and longitudinal beams provide support for the bracket and the power generation device.

[0020] The hinge device is a ball bearing type fixed hinge device; the hinge device is arranged between the steel frames of the two sub-platforms, and two adjacent sub-platforms are provided with two hinge devices.

[0021] The energy dissipation devices included in the fixed offshore platform are arranged in a diagonally connected manner; the energy dissipation devices are SMA energy dissipation devices.

[0022] The support fixed on the offshore platform includes columns and diagonal braces; the diagonal braces have a certain angle with the crossbeams of the steel frame; the support on the offshore platform provides support for the power generation device.

[0023] Compared with the existing technology, the present invention has the following advantages:

[0024] (1) An articulated fixed offshore photovoltaic platform was invented, which provides a feasible solution for photovoltaic power generation from traditional land to future sea.

[0025] (2) The fixed offshore platform of the present invention is composed of four sub-platforms connected together by hinges. The overall platform is more reasonably stressed than a single platform, has better stability and stronger ability to withstand external environmental loads, laying the foundation for the design of fixed offshore photovoltaic platforms in the future.

[0026] (3) The scheme adopts a single pile foundation, which can effectively reduce the design and construction costs. In addition, the platforms are hinged, making the platforms more stable, friendly to the movement of workers, and safer.

[0027] (4) The fixed offshore platform of the present invention is equipped with a SAM energy dissipation device. SAM energy dissipation devices are widely used in various fields to control structural vibrations due to their strong energy dissipation capacity, easy manufacture, and good deformation recovery. Fixed offshore platforms can reduce dynamic response under complex environmental loads and improve structural fatigue life by designing energy dissipation devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall stereoscopic diagram of the articulated fixed offshore photovoltaic platform of the present invention.

[0029] Figure 2 It is a side view of the articulated fixed offshore photovoltaic platform of the present invention.

[0030] Figure 3 It is a top view of the articulated fixed offshore photovoltaic platform of the present invention.

[0031] Figure 4 yes Figure 3 A is an enlarged view of the middle image.

[0032] Figure 5 It is a schematic diagram of an ocean platform of an articulated fixed offshore photovoltaic platform of the present invention.

[0033] Figure 6 It is a distribution diagram of the energy dissipation device on the hinge device of the present invention.

[0034] Figure 7 It is a schematic diagram of the structure of the SMA energy dissipation device of the present invention.

[0035] In the figure: 1. fixed offshore platform, 2. bracket, 3. power generation device, 4. hinged device, 4a. first fixed support, 4b. second fixed support, 5. energy dissipation device, 6. sub-platform, 6a. first sub-platform, 6b. second sub-platform, 7. steel frame, 8. single pile foundation, 9. single pile diagonal brace, 10. cross beam, 11. longitudinal beam, 12. iron wire, 13. chuck, 14. SMA wire, 15. column, 16. power generation device diagonal brace, 17. first diagonal brace, 18. second diagonal brace, 19. ball joint bearing. DETAILED DESCRIPTION

[0036] The following will provide a clear and detailed introduction to the articulated fixed offshore photovoltaic platform in conjunction with the accompanying drawings of the present invention.

[0037] The fixed offshore platform includes four sub-platforms, an articulated device and an energy dissipation device. The sub-platform consists of a single pile foundation and a quadrilateral fixed steel frame, and the single pile foundation and the frame are connected by a diagonal brace. The articulated device is between two adjacent sub-platforms to ensure that the platform structure has good integrity. The energy dissipation device is placed on the upper and lower sides of the articulated device to effectively reduce structural vibration and improve fatigue life. The internal bracket of the offshore platform is used to support the power generation device. In the present invention, the articulated fixed offshore photovoltaic platform consists of four sub-platforms, each of which is a separate body and is connected to form a whole through hinges. By arranging a vibration control device, the platform has better stability and a stronger ability to withstand external environmental loads.

[0038] As attached Figures 1 to 7 As shown, an articulated fixed offshore photovoltaic platform includes a fixed offshore platform 1, a bracket 2 fixed on the offshore platform, and a power generation device 3. The fixed offshore platform includes four sub-platforms, an articulated device 4, and an energy consumption device 5. The sub-platform 6 is composed of a quadrilateral fixed steel frame 7 and a monopile foundation 8, and the steel frame 7 and the monopile foundation 8 are connected by a diagonal brace 9.

[0039] The quadrilateral fixed steel frame 7 is a hollow steel pipe frame that has been treated with corrosion protection; the interior of the quadrilateral fixed steel frame is provided with a cross beam 10 and a longitudinal beam 11 of a hollow steel pipe that has been treated with corrosion protection, and the frame 7 and the cross beam 10 and the longitudinal beam 11 are welded into a whole; the cross beams 10 are evenly spaced inside the quadrilateral fixed steel frame 7; each longitudinal beam 11 is located at the center of the length of the cross beam 10 and is welded at the cross intersection formed.

[0040] The single pile foundation 7 is a steel hollow columnar structure; each sub-platform 6 has a single pile foundation 7; the upper part of the single pile foundation 7 is welded to a whole with the cross intersection of the cross beam 10 and the longitudinal beam 11 in the quadrilateral fixed steel frame 8; the diagonal brace 9 is a hollow steel pipe treated with anti-corrosion, and the single pile foundation 7 is connected to the four frames of the steel frame 8 through the diagonal brace 9, and the welding positions are at two different positions: the midpoint of the frame length, the four end points of the frame, and the middle and upper part of the single pile foundation 7.

[0041] The articulated fixed offshore platform 1 is formed into a whole by four sub-platforms 6 connected by an articulated device 4; the articulated device 4 adopts a fixed articulated device with a ball joint bearing 19, and both ends are connected to the quadrilateral fixed steel frame 7 of the adjacent sub-platform 6 by a fixed support, and a ball joint bearing 19 is installed in the middle; the material of the articulated device 4 is selected from high-strength wear-resistant material; the positions of the articulated device 4 are respectively arranged at the four ends of the frame of the quadrilateral fixed steel frame 7, and two sub-platforms are connected at adjacent positions using a joint ball joint bearing 19; the articulated device 4 enables the four sub-platforms to be flexibly connected and form a whole; the fixed offshore platform 1 formed by the articulated device 4 is reasonably stressed and has good dynamic performance under environmental loads.

[0042] The energy dissipation device 5 is composed of an iron wire 12, a clamp 13, and an SMA wire 14; the SMA wire 14 is composed of a Ti-Ni shape memory alloy wire with a diameter of 1 mm; two iron wires 12, two clamps 13, and one SMA wire 14 are connected in series to form an energy dissipation device 5; the energy dissipation device 5 is arranged on the upper side and the lower side of each hinge device 4; the upper side and the lower side of the hinge device 4 are arranged in such a way that two diagonal end points share one SMA energy dissipation device 5, and the two energy dissipation devices 5 on the same hinge device 4 form a cross at the center of the hinge device. One iron wire of the energy dissipation device is fixed on one sub-platform, and the other iron wire is fixed on another sub-platform adjacent to the sub-platform.

[0043] The bracket 2 fixed on the offshore platform 1 is composed of a column 15 and a diagonal brace 16, both of which are made of hollow steel pipes; the top of the diagonal brace 16 is welded to the top of the column 15, and the lower end of the diagonal brace 16 and the lower end of the column 15 are welded to the crossbeam 10, and the first diagonal brace 17 and the second diagonal brace 18 are symmetrical about the column; the angle between the diagonal brace 16 and the crossbeam 10 is determined according to the longitude and latitude of the sea area where the fixed offshore photovoltaic platform is located, and the optimal inclination angle is the inclination angle that enables the symmetrical solar photovoltaic panels to obtain the maximum annual solar radiation in a year; the solar photovoltaic panels of the power generation device 3 are symmetrically placed on the bracket composed of the diagonal brace 16 and the column 15; the distance between the two brackets 2 supporting the same solar photovoltaic panel is determined according to the size of the photovoltaic panel; the power generation device 3 is symmetrically installed about the column, and the solar panel obtains the maximum radiation.

[0044] Although the preferred embodiments of the present invention are described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned embodiments. Under the enlightenment of the present invention, those skilled in the art can also make many forms without departing from the scope of protection of the present invention and the claims, which all belong to the protection scope of the present invention.

Claims

1. An articulated fixed offshore photovoltaic platform, comprising a power generation device (3); characterized in that: The fixed offshore platform (1) comprises four sub-platforms (6), and articulated devices (4) and energy dissipation devices (5) are provided at the end points of adjacent sub-platforms (6); The sub-platform (6) adopts a steel frame (7) in which a cross beam (10) and a longitudinal beam (11) are arranged. The center of the sub-platform (6) is fixed on a single pile foundation (8). A single pile diagonal brace (9) for reinforcement is arranged between the single pile foundation (8) and the steel frame (7); A support (2) is arranged on the sub-platform (6), the support (2) comprising a column (15) and a generator diagonal brace (16), one end of the generator diagonal brace (16) being arranged at the top of the column (15), and the other end being arranged on the steel frame (7) or the crossbeam (10); the generator diagonal brace (16) supports the generator (3); The endpoints of two adjacent sub-platforms are connected as one through a hinge device, the hinge device is fixed to the first sub-platform by a first fixed support, and the second fixed support is fixed to the second sub-platform. The first fixed support and the second fixed support are hinged by a ball joint bearing, and the first sub-platform and the second sub-platform are adjacent; Two sets of energy dissipation devices (5) are arranged diagonally above and below the hinge device (4), respectively. The energy dissipation device (5) uses two iron wires (12) to connect two ends of an SMA wire (14) through a clamp (13), and the SMA wire (14) is a Ti-Ni shape memory alloy wire; one iron wire of the energy dissipation device is fixed on one sub-platform, and the other iron wire is fixed on an adjacent sub-platform. On another sub-platform; The two sets of energy dissipation devices (5) arranged diagonally cross each other cross at the center of the SMA wire (14), and the diameter of the SMA wire (14) is 1 mm.

2. The articulated fixed offshore photovoltaic platform according to claim 1, characterized in that: The power generation device diagonal brace (16) is divided into a first diagonal brace (17) and a second diagonal brace (18) which are symmetrically distributed around the column (15).

3. The articulated fixed offshore photovoltaic platform according to claim 1, characterized in that: The angle between the diagonal brace (16) of the power generation device and the crossbeam (10) is determined according to the longitude and latitude of the sea area where the fixed offshore photovoltaic platform is located, and is an inclination angle that enables the symmetrically arranged power generation device (3) to obtain the maximum annual solar radiation in a year.

4. The articulated fixed offshore photovoltaic platform according to claim 1, characterized in that: The single pile foundation (8) is a steel hollow columnar structure, the single pile diagonal brace (9) is a hollow steel pipe that has been treated with anti-corrosion, and the column (15) and the power generation device diagonal brace (16) are composed of hollow steel pipes.

5. The articulated fixed offshore photovoltaic platform according to claim 1, characterized in that: Each longitudinal beam (11) is welded at the center of the length of the cross beam (10) and at the formed cross intersection; the upper part of the single pile foundation (8) is welded to the cross intersection of the cross beam (10) and the longitudinal beam (11) in the quadrilateral fixed steel frame (7) to form a whole.

6. The articulated fixed offshore photovoltaic platform according to claim 1, characterized in that: The single pile foundation (8) is connected to four frames of the steel frame (7) via single pile diagonal braces (9), and the welding positions are between the midpoint of the frame length and the middle of the single pile foundation (8), and between the four end points of the frame and the upper part of the single pile foundation (8).

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