Anti-storm floating type photovoltaic floating body platform

Abstract

The invention provides an anti-storm floating type photovoltaic floating body platform which comprises a floating type photovoltaic assembly and a floating assembly, the floating type photovoltaic assembly is composed of a plurality of photovoltaic modules, the floating assembly is composed of a plurality of annular frame floating bodies, and the floating assembly and the floating type photovoltaic assembly are connected into a whole through a plurality of integrated connecting pieces; the photovoltaic module comprises floating bodies and photovoltaic panels, the adjacent floating bodies are connected through lug plates, and first heaving parts are arranged below the floating bodies; a second heaving part is arranged below the integrated connecting part; by adopting the middle tiled photovoltaic module design, the wind load influence is reduced, and the overall stability is improved; heaving motion caused by waves is restrained through the heaving plate structure, and the response amplitude of the system is reduced; the annular frame floating bodies are arranged to form modular arrangement, so that transportation and installation are facilitated; four corners of the floating body are arc lines to reduce the stress concentration risk; therefore, the system is suitable for photovoltaic application scenes in sea or internal lake areas with complex stormy wave environments.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of floating photovoltaic power generation, in particular to a wind and wave resistant floating photovoltaic platform. BACKGROUND

[0002] Currently, floating photovoltaic systems generally use high-density polyethylene (HDPE) or metal frame structures to support photovoltaic modules, and provide buoyancy through pontoons. These systems are usually suitable for areas such as inner lakes and slow-flow reservoirs where wind and wave conditions are relatively mild. However, when the floating platform is deployed in areas with strong wind and waves, conventional structures have the following problems in terms of overturning resistance, vibration resistance, and floating stability:

[0003] Poor structural rigidity: traditional frame structures are difficult to effectively disperse wave impact and are prone to structural fatigue; lack of damping vibration reduction design: no effective device to suppress rolling or heaving response; single connection method: the connection method between photovoltaic arrays is too rigid, which is not conducive to wave adaptability; limitations of fixing device: limited by wave resistance sliding and floating body stability, prone to shaking or relative displacement. Although some systems introduce flexible connections or wave-resistant designs, most of them do not start from the perspective of structural-hydrodynamic synergy, forming a systematic wind and wave resistant floating structure. SUMMARY

[0004] The present application aims to provide a wind and wave resistant floating photovoltaic platform with reasonable structure, flexible connection, strong wind and wave resistance, structural stability, and flexible adaptability.

[0005] To this end, the technical solution adopted by the present application is as follows: a wind and wave resistant floating photovoltaic platform, comprising a floating photovoltaic assembly and a floating assembly, the floating photovoltaic assembly is composed of a plurality of photovoltaic modules laid and connected in sequence in the longitudinal and transverse directions, the floating assembly is composed of a plurality of ring-shaped frame floating bodies arranged around the outer periphery of the floating photovoltaic assembly to provide buoyancy support, and the floating assembly and the floating photovoltaic assembly are connected to form a whole through a plurality of integrated connectors arranged at intervals in the circumferential direction;

[0006] The photovoltaic module comprises a floating body and a photovoltaic panel arranged in the floating body, adjacent floating bodies are connected through ear plates arranged on the floating bodies, and a first heaving member is arranged below the floating body; a second heaving member is arranged below the integrated connector;

[0007] The first heaving member comprises a connecting plate and a vertical rod arranged coaxially below the floating body from top to bottom, a steel plate is fixedly sleeved on the lower part of the vertical rod, a horizontal circular plate is sleeved on the middle part of the vertical rod through a first flange bearing, a first spring is sleeved between the horizontal circular plate and the steel plate, so as to realize the elastic support and fixation of the horizontal circular plate on the steel plate, and a plurality of holes are arranged on the horizontal circular plate;

[0008] The integrated connecting piece comprises a main body and a support fixed above the main body, the second heaving piece comprises a reinforcing rod arranged below the main body and a horizontal plate coaxially sleeved in the middle part of the reinforcing rod through a second flange bearing, a fixed plate is fixedly sleeved at the lower part of the reinforcing rod, and a second spring is sleeved between the horizontal plate and the fixed plate, so that the elastic support and fixation of the horizontal plate on the fixed plate are realized, and a plurality of transverse flow guide holes are formed on the main body.

[0009] Further preferably, the number of the annular frame floating bodies is three, including a first annular frame floating body, a second annular frame floating body and a third annular frame floating body, the first and second annular frame floating bodies are arranged at intervals inside and outside, and the third annular frame floating body is arranged above the first annular frame floating body, a pipe sleeve for the first and second annular frame floating bodies to pass through is arranged on the main body, a pipe sleeve for the third annular frame floating body to pass through is arranged on the support, and a connecting lug for connecting with the lug on the outermost floating body is arranged on the main body.

[0010] Further preferably, an installation hole for installing a connecting plate is arranged below the floating body, the connecting plate is connected with the lugs at the four corners of the floating body through flexible ropes one by one, the adjacent floating bodies are connected through the flexible ropes on the lugs at the splicing positions, and the lug on the outermost floating body is connected with the connecting lug on the nearest main body through a flexible rope.

[0011] Further preferably, the inside of the floating body is divided into four installation grooves of the same size for installing photovoltaic panels through the transverse installation partition plate and the longitudinal installation partition plate.

[0012] Further preferably, the annular frame floating body is composed of a plurality of straight pipes and arc-shaped pipes, and the corners of the straight pipes are connected with the arc-shaped pipes through hot melt welding.

[0013] The present application has the following advantages: the middle flat photovoltaic module design reduces the influence of wind load and improves the overall stability; the heaving plate structure arranged below can effectively suppress the heaving motion caused by waves and reduce the system response amplitude; the annular frame floating body arranged on the periphery forms a modular arrangement, which is convenient for transportation and installation, and has good adaptability and flexibility; the four corners of the floating body are arranged as arc segments, which reduces the risk of stress concentration; and the system impact resistance and operation safety are improved, and the present application is suitable for photovoltaic application scenarios in complex wind and wave environments such as offshore or lake areas, and has reasonable structure and excellent wind and wave resistance. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the present application.

[0015] Figure 2 is a structural schematic diagram of the photovoltaic module in the present application.

[0016] Figure 3is the lower structure schematic view of the floating body in the application.

[0017] Figure 4 is the structure schematic view of the first heave member in the application.

[0018] Figure 5 is the structure schematic view of the integrated connecting member in the application Figure 1 .

[0019] Figure 6 is the structure schematic view of the integrated connecting member in the application Figure 2 .

[0020] Figure 7 is the top view of the application. DETAILED DESCRIPTION

[0021] The application will be further described below in combination with the drawings and examples.

[0022] As Figures 1-7 shown, an anti-wind wave floating photovoltaic floating platform, comprising a floating photovoltaic assembly and a floating assembly, the floating photovoltaic assembly is composed of a plurality of photovoltaic modules 1 laid and connected in sequence longitudinally and transversely, the floating assembly is composed of a plurality of annular frame floating bodies 2 arranged at the outer periphery of the floating photovoltaic assembly for providing buoyancy support, and the floating assembly and the floating photovoltaic assembly are connected to form a whole through a plurality of integrated connecting members 3 arranged in a ring direction.

[0023] The photovoltaic module 1 comprises a floating body 101 and a photovoltaic panel 102 arranged in the floating body 101, the shape of the floating body 101 is rectangular, the floating body 101 is divided into four installation slots with the same size for installing the photovoltaic panel 102 through the transverse installation partition plate and the longitudinal installation partition plate arranged on the floating body 101, the adjacent floating bodies 101 are connected through the lug plate 103 arranged on the floating body 101, the lug plate 103 is arranged at each of the four corner positions of the floating body 101, the first connecting hole is opened on the lug plate 103, the adjacent floating bodies 101 are connected through the flexible rope 110 and the lug plate 103 of the floating body 101 in the diagonal direction, the floating bodies 101 are laid in sequence longitudinally and transversely and connected with the floating bodies 101 in the diagonal direction, so as to reduce the impact borne by a single point and improve the overall stability, and the multi-floating body 101 structure can effectively reduce the swing amplitude in severe sea conditions.

[0024] The first heave member is arranged below the floating body 101; the first heave member comprises a connecting plate 109 and a vertical rod 104 arranged coaxially from top to bottom below the floating body 101, the lower part of the vertical rod 104 is fixedly sleeved with a steel plate 108, the middle part of the vertical rod 104 is sleeved with a horizontal circular plate 105 through a first flange bearing 106, the first spring 107 is sleeved between the horizontal circular plate 105 and the steel plate 108, so as to realize the elastic support and fixation of the horizontal circular plate 105 on the steel plate 108, and a plurality of holes are arranged on the horizontal circular plate 105.

[0025] The installation hole 111 for installing the connecting plate 109 is arranged below the floating body 101, the connecting plate 109 is connected with the lug plate 103 at the four corners of the floating body 101 through the flexible rope 110 one by one, the adjacent floating bodies 101 are connected through the flexible rope 110 on the lug plate 103 at the splicing position, and the lug plate 103 on the outermost floating body 101 is connected with the connecting lug plate 302 on the nearest main body 31 through the flexible rope 110.

[0026] The second connecting hole connected with the connecting plate 109 through the flexible rope 110 is arranged on the outer side wall of the connecting plate 109, which is used for preventing rotation or excessive horizontal displacement, and is chamfered or rounded to prevent rope abrasion.

[0027] The flexible rope 110 is selected from a synthetic fiber rope which is resistant to seawater corrosion, high-strength, wear-resistant and ultraviolet-resistant; the rope can be appropriately pre-tensioned during installation to ensure that sufficient connection strength can be provided under daily wind and wave conditions, but a certain elastic deformation or limited relative displacement is allowed to buffer energy when a larger wave impact is encountered; the structure is simple, convenient to install, flexible, can effectively absorb impact load, and the cost is relatively low.

[0028] Due to the downward extrusion of the photovoltaic module 1 by its own gravity to drive the installation hole 111 downward, the connecting plate 109 below is floated upward by the action of the first heaving member, and the two are naturally and closely embedded in the vertical direction, thereby ensuring the stable connection of the floating body 101 and the connecting plate 109 in the vertical direction.

[0029] Working principle of the first heaving member: the horizontal circular plate 105 is elastically supported and fixed to the lower steel plate 108 through the first spring 107. When the wave impacts the horizontal circular plate 105, the horizontal circular plate 105 will swing up and down like a seesaw; the spring functions to make the movement of the horizontal circular plate 105 more flexible, and at the same time, to buffer the impact force of the wave and avoid structural damage; a plurality of holes are arranged on the horizontal circular plate 105, and the stability can be flexibly optimized, the hydrodynamic damping can be enhanced, and the additional mass can be increased by adjusting the number, size and distribution of the holes.

[0030] When the wave impacts the horizontal circular plate 105 up and down, the horizontal circular plate 105 can also rotate around the vertical rod 104 through the first flange bearing 106, reducing the impact of the wave perpendicular to the vertical rod 104 on the heave piece; the first heave piece expands the interaction surface between the structure and the water, so that the structure must "push more water and drive more waves" when moving, resulting in that the structure itself is difficult to float or move slowly; it can significantly slow down the platform swing, suppress the response, and improve the stability; compared with the existing fixed breakwater which simply blocks the wave, the first heave piece uses "motion to brake" to convert wave energy into water flow turbulence and heat energy through movement, which is more efficient.

[0031] The integrated connecting piece 3 includes a main body 31 and a support 32 fixedly arranged above the main body 31, and a second heave piece is arranged below the integrated connecting piece 3; the second heave piece includes a reinforcing rod 303 arranged below the main body 31 and a horizontal plate 305 coaxially sleeved in the middle part of the reinforcing rod 303 through a second flange bearing 304, and a fixed plate is fixedly sleeved at the lower part of the reinforcing rod 303, a second spring 306 is sleeved between the horizontal plate 305 and the fixed plate, so as to realize the elastic support and fixation of the horizontal plate 305 on the fixed plate, and a plurality of transverse flow guide holes 33 are formed in the main body 31.

[0032] The two ends of the main body 31 close to the floating body 101 are also provided with connecting lug plates 302 for connecting with the lug plates 103 on the outermost floating body 101, and a third connecting hole is formed in the connecting lug plate 302 and connected with the lug plate 103 through a flexible rope 110, and the two connecting lug plates 302 are connected with the adjacent lug plates 103 on the same side through the flexible ropes 110, when the lug plate 103 on the floating body 101 is located at the corner of the annular frame floating body 2, the same lug plate 103 is connected with the connecting lug plates 302 on the two integrated connecting pieces 3 arranged on the arc segment.

[0033] The main body 31 is provided with two sleeves, and the support 32 is provided with a sleeve, which are used to connect the three annular frame floating bodies 2 respectively, so as to form a stable triangular structure, the annular frame floating body 2 is connected to form a whole through the pipe sleeve 301 matched with the annular frame floating body 2 arranged on the main body 31 and the support 32, the support 32 is arranged directly above one of the pipe sleeves 301, and can be fixed through a support rod, compared with the "eight" shaped arrangement of two support rods, the cost is saved.

[0034] A plurality of transverse flow guide holes 33 are arranged on the main body 31, and the transverse flow guide holes 33 adopt a circular hole structure with different sizes. The number of the transverse flow guide holes 33 in the embodiment is five, which reduces water flow interference, improves the stability of the platform, and enhances the stability of the connection between the second heaving member and the main body 31. The working principle of the second heaving member is similar to that of the first heaving member, and the difference lies in that the horizontal plate 305 is not perforated, and the additional mass is mainly concentrated in the heaving and pitching directions, so that the structure is more reliable and the cost requirement is lower.

[0035] The number of the annular frame floating bodies 2 is three, including the first, second and third annular frame floating bodies 2. The first and second annular frame floating bodies 2 are arranged at intervals inside and outside, and the third annular frame floating body 2 is located above the first annular frame floating body 2. The main body 31 is provided with a pipe sleeve 301 for the first and second annular frame floating bodies 2 to pass through, and the support 32 is provided with a pipe sleeve 301 for the third annular frame floating body 2 to pass through.

[0036] The annular frame floating body 2 is composed of a plurality of straight pipes and arc-shaped pipes, and the corners of the straight pipes are connected with the arc-shaped pipes by hot melting welding. The annular frame floating body 2 is made of high-density polyethylene material, has excellent corrosion resistance and buoyancy performance, and is used to provide overall buoyancy support. It is connected with the photovoltaic module 1 through an integrated connecting piece 3, and the overall shape is a rectangular frame structure. The four corners are connected by arc-shaped corner sleeve pipes, that is, a circular arc-shaped pipe sleeve 301 connecting piece is arranged at each corner to smoothly connect the adjacent two straight floating body 101 frame pipes, avoiding the stress concentration problem caused by the right angle transition.

[0037] The middle flat photovoltaic module design reduces the influence of wind load and improves the overall stability. The lower part is provided with a heaving plate structure, which can effectively suppress the heaving motion caused by waves and reduce the system response amplitude. The outer periphery is provided with an annular frame floating body 2, which forms a modular arrangement, is convenient for transportation and installation, and has good adaptability and flexibility. The four corners of the floating body 101 are provided with arc segments to reduce the risk of stress concentration. It is helpful to improve the impact resistance and operation safety of the system, and is suitable for photovoltaic application scenes in complex wind and wave environments on the sea or in the lake area. The structure is reasonable, and the wind and wave resistance performance is excellent.

[0038] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A wind and wave resistant floating photovoltaic platform, characterized by: The invention comprises a floating photovoltaic assembly and a floating assembly, wherein the floating photovoltaic assembly is composed of a plurality of photovoltaic modules (1) sequentially laid out in a longitudinal and transverse direction and connected to each other, and the floating assembly is composed of a plurality of annular frame floats (2) arranged on the periphery of the floating photovoltaic assembly for providing buoyancy support, and the floating assembly and the floating photovoltaic assembly are connected to form a whole through a plurality of integrated connectors (3) arranged at intervals along the annular direction; The photovoltaic module (1) comprises a floating body (101) and a photovoltaic panel (102) arranged in the floating body (101); adjacent floating bodies (101) are connected via lugs (103) arranged on the floating bodies (101); a first heave member is arranged below the floating body (101); and a second heave member is arranged below the integrated connector (3); The first heave member comprises a connecting plate (109) and a vertical rod (104) coaxially arranged below the floating body (101) from top to bottom, a steel plate (108) being fixedly sleeved on the lower portion of the vertical rod (104), a horizontal circular plate (105) being sleeved on the middle portion of the vertical rod (104) via a first flange bearing (106), a first spring (107) being sleeved between the horizontal circular plate (105) and the steel plate (108), thereby realizing elastic support and fixation of the horizontal circular plate (105) on the steel plate (108), and a plurality of holes being provided on the horizontal circular plate (105); The integrated connecting member (3) comprises a main body (31) and a bracket (32) fixedly arranged above the main body (31); the second hanging member comprises a reinforcing rod (303) arranged below the main body (31) and a horizontal plate (305) coaxially sleeved on the middle part of the reinforcing rod (303) through a second flange bearing (304); a fixed plate is fixedly sleeved on the lower part of the reinforcing rod (303); a second spring (306) is sleeved between the horizontal plate (305) and the fixed plate, thereby realizing elastic support and fixation of the horizontal plate (305) on the fixed plate; and a plurality of transverse guide holes (33) are opened on the main body (31).

2. The wind and wave resistant floating photovoltaic platform according to claim 1 is characterized by: The number of the annular frame floats (2) is three, including a first, a second, and a third annular frame float (2). The first and second annular frame floats (2) are spaced apart inside and outside, and the third annular frame float (2) is located above the first annular frame float (2). A pipe sleeve (301) for the first and second annular frame floats (2) to pass through is provided on the main body (31), a pipe sleeve (301) for the third annular frame float (2) to pass through is provided on the bracket (32), and a connecting ear plate (302) for connecting to the ear plate (103) on the outermost float (101) is also provided on the main body (31).

3. The wind and wave resistant floating photovoltaic platform according to claim 1 is characterized by: A mounting hole (111) for mounting a connecting plate (109) is provided below the floating body (101). The four sides of the connecting plate (109) are connected to the ear plates (103) at the four corners of the floating body (101) one by one through flexible ropes (110). Adjacent floating bodies (101) are connected through the flexible ropes (110) on the ear plates (103) at the splicing positions. The ear plates (103) on the outermost floating body (101) are connected to the connecting ear plates (302) on the closest main body (31) through flexible ropes (110).

4. The wind and wave resistant floating photovoltaic platform according to claim 1 is characterized by: The floating body (101) is partitioned by transverse mounting partitions and longitudinal mounting partitions to form four mounting grooves of the same size for mounting photovoltaic panels (102) inside the floating body (101).

5. The wind and wave resistant floating photovoltaic platform according to claim 1 is characterized by: The annular frame float (2) is composed of a plurality of straight tubes and arc-shaped tubes, and the corners of the straight tubes are connected to the arc-shaped tubes by hot-melt welding.

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