Photovoltaic support floating on water

Abstract

The utility model discloses a water floating photovoltaic support which comprises a floating box and cable bridges, the cable bridges transversely penetrate through the gravity center position of the side face of the floating box and are detachably and fixedly connected with the floating box, the N cable bridges are arranged in a line shape, and every two adjacent cable bridges are detachably and fixedly connected in a butt joint mode. The appearance of the floating box is a cube with the cross section being a right trapezoid, the included angle between the upper side face of the floating box and the horizontal plane is 15-30 degrees, and the photovoltaic panel is clamped in the open groove. The floating box is made of recycled EVA waste materials. According to the utility model, the EVA waste is recycled, crushed and re-foamed to prepare the water floating box, so that the manufacturing cost of the floating box is greatly reduced, and the anti-aging capability of the floating box is improved; the cable bridge serves as a cable laying channel and also serves as a connecting and fixing component between the floating boxes, the construction technology is simplified, the construction period is shortened, the cable bridge is located at the gravity center position of the side face of each floating box, and the installation stability of the photovoltaic panel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of complementary fishing and photovoltaic power generation, in particular to a floating photovoltaic bracket on water. Background Art

[0002] As a mutually beneficial project for the joint development of a new energy and fishery, the complementary fishing and photovoltaic power generation project plays a very important role in environmental protection and ecological aquaculture. It can greatly improve the economic value of land per unit area and has the potential for developing leisure tourism, and is very suitable for popularization in the regions of the Yangtze River Delta.

[0003] At present, floating barrels based on materials such as high-density polyethylene have been widely used, but there are not many floating barrels applied to photovoltaic power generation projects. The reasons are as follows:

[0004] 1. The service life of a photovoltaic power generation project is as long as 25 years. Due to its characteristics, the polyethylene floating barrel is prone to aging when exposed to the sun for a long time, and its service life cannot meet the operation period of the photovoltaic power station.

[0005] 2. Generally, the construction of a complementary fishing and photovoltaic power station requires a large water area, and the maintenance cost during the production and operation period is relatively high.

[0006] 3. Using a polyethylene floating barrel still requires a bracket to connect and fix the photovoltaic panel, which increases the construction cost and installation cost of the power station. Currently, the cost of the bracket accounts for one-fifth of the investment cost, and the construction process of fixing the photovoltaic panel with the bracket is cumbersome, which prolongs the construction period.

[0007] 4. The cost of using a polyethylene floating barrel is relatively high. Currently, the price of a floating barrel with dimensions of 500mm×500mm×400mm on the market is about 200 yuan. Content of the Utility Model

[0008] To solve the problems that the existing polyethylene floating barrel is prone to aging when exposed to the sun, its service life cannot meet the operation period of the photovoltaic power station, the cost is relatively high, and it still requires a bracket to connect and fix the photovoltaic panel, which increases the construction cost and installation cost of the power station, the utility model provides a floating photovoltaic bracket on water. By recycling EVA waste, crushing it and re-foaming it, a floating box on water is prepared, which greatly reduces the manufacturing cost of the floating box. EVA is ethylene-vinyl acetate copolymer, and generally the content of vinyl acetate (VA) is 5% - 40%. Compared with polyethylene, since vinyl acetate monomer is introduced into the molecular chain of EVA, the high crystallinity is reduced, and the flexibility, impact resistance, filler compatibility and heat sealing performance are improved, thereby improving the anti-aging ability of the floating box.

[0009] To achieve the above object, the present utility model provides a floating photovoltaic support, which is characterized in that: it includes floating boxes and cable bridges, there are N floating boxes and N cable bridges, where N is a natural number greater than 1. The cable bridge transversely passes through the center of gravity position on the side of the floating box and is detachably and fixedly connected to the floating box. The N cable bridges are arranged in a straight line, and two adjacent cable bridges are detachably and butt-joint fixedly connected. The cable bridge is used for laying cables of photovoltaic panels and serves as a connection and fixing frame between the floating boxes. The floating box is shaped like a cube with a right trapezoid cross-section, and the included angle between the upper side and the horizontal plane is set to 15-30°. There is an inwardly concave opening groove on the upper side, and the bottom surface of the opening groove is parallel to the upper side. The photovoltaic panel is clamped in the opening groove;

[0010] The floating box is made of recycled EVA waste. After the EVA waste is crushed, it is re-kneaded and foamed by traditional processes.

[0011] Furthermore, there is a transverse square hole penetrating the left and right side surfaces of the floating box, and the center of the square hole coincides with the center of gravity of the side surface of the floating box. The cable bridge passes through the square hole, and the lengths of both ends extending out of the floating box are equal, and the extending length is set to 1000-1400 mm.

[0012] Furthermore, the cable bridge is made of C-shaped profiles, and the wall thickness is set to 1.5-2 mm.

[0013] Furthermore, it also includes an L-shaped connecting plate, a first bolt, a second bolt and a first locking nut. The L-shaped connecting plate includes a longitudinal plate and a transverse plate that are perpendicular to each other. The longitudinal plate is attached to the left or right side surface of the floating box, and the transverse plate is attached to the front or rear side surface of the cable bridge. There are first bolt mounting holes on both the longitudinal plate and the transverse plate. Corresponding first threaded holes are provided at corresponding positions on the left and right side surfaces of the floating box. Corresponding second bolt mounting holes are provided at corresponding positions on the front and rear side surfaces of the cable bridge. The first bolt passes through the first bolt mounting hole on the longitudinal plate and is threadedly connected to the first threaded hole on the floating box, so that the L-shaped connecting plate and the floating box form a detachable and fixed connection. The second bolt passes through the first bolt mounting hole on the transverse plate and the corresponding second bolt mounting hole on the cable bridge, and the other end is locked by the first locking nut, so that the L-shaped connecting plate and the cable bridge form a detachable and fixed connection.

[0014] Further, it further includes a connecting plate, a third bolt and a second locking nut. The inner sides of the left and right sides of the connecting plate are respectively attached to the front side or the rear side of the butt ends of two adjacent cable trays. A plurality of third bolt mounting holes are provided on both the left and right sides of the connecting plate. Fourth bolt mounting holes are provided at corresponding positions on the front and rear sides of the butt ends of two adjacent cable trays. The third bolt sequentially passes through the third bolt mounting hole of the connecting plate and the fourth bolt mounting hole on the corresponding cable tray from outside to inside, and the other end is locked by the second locking nut, so that the butt ends of two adjacent cable trays form a detachable fixed connection.

[0015] Further, it further includes a bracket, a fourth bolt and a fifth bolt for connecting the floating box and the photovoltaic panel. Second threaded holes are provided below both the upper and lower ends of the opening groove on the floating box. Fifth bolt mounting holes are provided at corresponding positions on the bracket. The fourth bolt passes through the fifth bolt mounting hole on the bracket and is threadedly connected to the second threaded hole, so that the floating box and the bracket are detachably and fixedly connected. The bracket and the photovoltaic panel are detachably and fixedly connected by the fifth bolt.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The present utility model prepares a floating box on the water by recycling EVA waste from shoe factories and garment factories, pulverizing and re-foaming it, which greatly reduces the manufacturing cost of the floating box and at the same time reduces the environmental pollution caused by waste treatment. EVA is ethylene-vinyl acetate copolymer, and generally the content of vinyl acetate (VA) is 5% - 40%. Compared with polyethylene, since vinyl acetate monomer is introduced into the molecular chain of EVA, the high crystallinity is reduced, and the flexibility, impact resistance, filler compatibility and heat sealing performance are improved, thereby improving the anti-aging ability of the floating box.

[0018] 2. The floating boxes of the present utility model are directly connected and fixed by cable trays. The cable trays serve both as a channel for cable laying and as a component for connecting and fixing the floating boxes, simplifying the construction process and shortening the construction period. The cable trays have the same length as the photovoltaic panels. The connection between the cable trays is located at the center of gravity position on the side of the floating box, with simple operation and convenient construction, making the overall structure stable and improving the installation stability of the photovoltaic panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0020] Figure 2 is Figure 1 the enlarged view at A in

[0021] Figure 3 is Figure 1 the enlarged view at B in

[0022] Figure 4 Schematic diagram of the floating box structure according to an embodiment of the present utility model;

[0023] Figure 5 Schematic diagram of the connection structure between the embodiment of the present utility model and the photovoltaic panel;

[0024] Figure 6 Schematic diagram of the connection bracket structure between the floating box and the photovoltaic panel according to an embodiment of the present new model.

[0025] In the figure: 1. Floating box, 101. Opening groove, 102. Square hole, 103. First threaded hole, 104. Second threaded hole, 2. Cable tray, 3. L-shaped connecting plate, 4. First bolt, 5. Second bolt, 6. First locking nut, 7. Connecting plate, 8. Third bolt, 9. Second locking nut, 10. Photovoltaic panel, 11. Bracket, 12. Fourth bolt. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the corresponding drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0028] As Figures 1 to 6 shown, the embodiment of the present utility model includes a floating box 1 and a cable tray 2. There are 4 floating boxes 1 and cable trays 2 respectively. The cable tray 2 horizontally passes through the center of gravity position of the floating box 1 and is detachably and fixedly connected to the floating box 1. The 4 cable trays 2 are arranged in a straight line, and two adjacent cable trays 2 are detachably and butt-joined and fixedly connected. The cable tray 2 is used for laying the cables of the photovoltaic panel 10 and as a connection and fixing frame between the floating boxes 1. The outer shape of the floating box 1 is set as a cube with a right trapezoid cross-section, the included angle between the upper side and the horizontal plane is set as 20°, and an inward concave opening groove 101 is provided on the upper side. The bottom surface of the opening groove 101 is parallel to the upper side, and the photovoltaic panel 10 is clamped in the opening groove 101;

[0029] The floating box 1 is made of recycled EVA waste. After being crushed, the EVA waste is remixed and foamed by traditional processes. The EVA waste is reground, mixed, blanked, edged, and foamed to form a right trapezoidal cube with a bottom length of 1100 mm, a width of 300 mm, and an inclined plane angle of 20°.

[0030] In this embodiment, by recycling the EVA waste from shoe factories and garment factories and preparing the floating box 1 through crushing and re-foaming, the manufacturing cost of the floating box 1 is greatly reduced, and at the same time, the environmental pollution caused by waste treatment is reduced; EVA is ethylene-vinyl acetate copolymer, and generally the vinyl acetate (VA) content is between 5% and 40%. In the EVA resin used in shoe materials, the vinyl acetate content is generally between 15% and 22%. Compared with polyethylene, since the vinyl acetate monomer is introduced into the molecular chain of EVA, the high crystallinity is reduced, and the flexibility, impact resistance, filler compatibility, and heat sealing performance are improved, thus improving the anti-aging ability of the floating box.

[0031] Furthermore, a transverse square hole 102 penetrating the left and right side surfaces is provided on the floating box 1. The center of the square hole 102 coincides with the center of gravity of the floating box 1. The cable tray 2 passes through the square hole 102, and the lengths of both ends extending out of the floating box 1 are equal, and the extended length is set to 1340 mm.

[0032] In this embodiment, the floating boxes 1 are directly connected and fixed by the cable tray 2. The cable tray 2 serves both as a cable laying channel and as a connecting and fixing component between the floating boxes 1, simplifying the construction process and shortening the construction period. The cable tray 2 has the same length as the photovoltaic panel 10; the connection between the cable trays 2 is located at the center of gravity position of the floating box 1, with simple operation and convenient construction, making the overall structure stable and improving the installation stability of the photovoltaic panel 10.

[0033] Furthermore, the cable tray 2 is a C-shaped profile with a width of 150 mm and a height of 75 mm, and the wall thickness is set to 1.5 mm.

[0034] Further, it further includes an L-shaped connecting plate 3, a first bolt 4, a second bolt 5 and a first locking nut 6. The L-shaped connecting plate 3 includes a longitudinal plate and a transverse plate that are perpendicular to each other. The longitudinal plate is attached to the left or right side surface of the floating box 1, and the transverse plate is attached to the front or rear side surface of the cable tray 2. First bolt mounting holes are provided on both the longitudinal plate and the transverse plate. Corresponding positions on the left and right side surfaces of the floating box 1 that correspond to the first bolt mounting holes are provided with mating first threaded holes 103. Corresponding positions on the front and rear side surfaces of the cable tray 2 that correspond to the first bolt mounting holes are provided with second bolt mounting holes. The first bolt 4 passes through the first bolt mounting hole on the longitudinal plate and is threadedly connected to the first threaded hole 103 on the floating box 1, so that the L-shaped connecting plate 3 and the floating box 1 form a detachable fixed connection. The second bolt 5 passes through the first bolt mounting hole on the transverse plate and the corresponding second bolt mounting hole on the cable tray 2, and the other end is locked by the first locking nut 6, so that the L-shaped connecting plate 3 and the cable tray 2 form a detachable fixed connection.

[0035] Further, it further includes a connecting plate 7, a third bolt 8 and a second locking nut 9. The inner side surfaces on the left and right sides of the connecting plate 7 are respectively attached to the front or rear side surfaces of the butt ends of two adjacent cable trays 2. A plurality of third bolt mounting holes are provided on both the left and right sides of the connecting plate 7. Corresponding positions on the front and rear sides of the butt ends of two adjacent cable trays 2 that correspond to the third bolt mounting holes are provided with fourth bolt mounting holes. The third bolt 8 sequentially passes through the third bolt mounting hole of the connecting plate 7 and the corresponding fourth bolt mounting hole on the cable tray 2 from the outside to the inside, and the other end is locked by the second locking nut 9, so that the butt ends of two adjacent cable trays 2 form a detachable fixed connection.

[0036] Further, it further includes a bracket 11 for connecting the floating box 1 and the photovoltaic panel 10, a fourth bolt 12 and a fifth bolt. Second threaded holes 104 are provided below both the upper and lower ends of the opening slot 101 on the floating box 1. Corresponding positions on the bracket 11 that correspond to the second threaded holes 104 are provided with fifth bolt mounting holes. The fourth bolt 12 passes through the fifth bolt mounting hole on the bracket 11 and is threadedly connected to the second threaded hole 104, so that the floating box 1 and the bracket 11 form a detachable fixed connection. The bracket 11 and the photovoltaic panel 10 are detachably and fixedly connected by a fifth bolt.

[0037] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A floating photovoltaic support on water, characterized in that: It includes floating boxes and cable trays. There are N floating boxes and N cable trays, where N is a natural number greater than 1. The cable trays horizontally pass through the center-of-gravity position on the side of the floating box and are detachably and fixedly connected to the floating box. The N cable trays are arranged in a straight line, and two adjacent cable trays are detachably and butt-joint fixedly connected. The cable trays are used for laying cables of photovoltaic panels and as connection and fixing frames between the floating boxes. The floating box is shaped as a cube with a right-trapezoidal cross-section, and the angle between the upper side and the horizontal plane is set to 15 - 30°. An inwardly concave opening groove is provided on the upper side, and the bottom surface of the opening groove is parallel to the upper side. The photovoltaic panel is clamped in the opening groove. The floating box is made of recycled EVA waste. After the EVA waste is crushed, it is re-kneaded and foamed by traditional processes.

2. The floating photovoltaic support according to claim 1, wherein: A horizontal square hole penetrating the left and right sides is provided on the floating box, and the center of the square hole coincides with the center of gravity of the side of the floating box. The cable tray passes through the square hole, and the lengths of both ends extending out of the floating box are equal, and the extending length is set to 1000 - 1400 mm.

3. The floating photovoltaic support according to claim 1, characterized in that: The cable tray is made of C-shaped profiles, and the wall thickness is set to 1.5 - 2 mm.

4. The floating photovoltaic support according to claim 1, characterized in that: It also includes an L-shaped connecting plate, a first bolt, a second bolt, and a first locking nut. The L-shaped connecting plate includes a longitudinal plate and a transverse plate that are perpendicular to each other. The longitudinal plate is attached to the left or right side of the floating box, and the transverse plate is attached to the front or rear side of the cable tray. First bolt mounting holes are provided on both the longitudinal plate and the transverse plate. Corresponding first threaded holes are provided at the corresponding positions on the left and right sides of the floating box. Second bolt mounting holes are provided at the corresponding positions on the front and rear sides of the cable tray. The first bolt passes through the first bolt mounting hole on the longitudinal plate and is threadedly connected to the first threaded hole on the floating box, so that the L-shaped connecting plate and the floating box form a detachable and fixed connection. The second bolt passes through the first bolt mounting hole on the transverse plate and the corresponding second bolt mounting hole on the cable tray, and the other end is locked by the first locking nut, so that the L-shaped connecting plate and the cable tray form a detachable and fixed connection.

5. The floating photovoltaic support according to claim 1, wherein: It also includes a connecting plate, a third bolt, and a second locking nut. The inner sides of the left and right sides of the connecting plate are respectively attached to the front or rear side of the butt-joint ends of two adjacent cable trays. A plurality of third bolt mounting holes are provided on both the left and right sides of the connecting plate. Fourth bolt mounting holes are provided at the corresponding positions on the front and rear sides of the butt-joint ends of two adjacent cable trays. The third bolt sequentially passes through the third bolt mounting hole of the connecting plate and the corresponding fourth bolt mounting hole on the cable tray from the outside to the inside, and the other end is locked by the second locking nut, so that the butt-joint ends of two adjacent cable trays form a detachable and fixed connection.

6. The floating photovoltaic support according to claim 1, wherein: It further includes a bracket, a fourth bolt and a fifth bolt for connecting the floating box and the photovoltaic panel. Second threaded holes are provided below both the upper and lower ends of the opening groove on the floating box. Fifth bolt mounting holes corresponding to the second threaded holes are provided on the bracket. The fourth bolt passes through the fifth bolt mounting hole on the bracket and is threadedly connected to the second threaded hole, so that the floating box and the bracket are detachably and fixedly connected. The bracket and the photovoltaic panel are detachably and fixedly connected through the fifth bolt.

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