Upward Bridging Type Floating Photovoltaic Support System

Abstract

The present invention discloses an upward cross-connected floating photovoltaic support system, which relates to the technical field of photovoltaic power generation. It includes a photovoltaic array backbone grid and a photovoltaic module support system. The photovoltaic array backbone grid includes a grid and a wave guard ring. The grid includes a transverse operation and maintenance passage and a longitudinal connection passage. The wave guard ring includes a transverse passage and a longitudinal passage. The photovoltaic module support system includes a photovoltaic module support unit, which is used to tilt and fix the photovoltaic modules. In the present invention, the photovoltaic module support unit is upward cross-connected and embedded in the longitudinal connection passage from the bottom of the longitudinal connection passage. The support floating body of the photovoltaic module support unit does not serve as the load of the connection floating body. The upward cross-connection of the support floating body embedded in the connection floating body can resist the deflection of the support floating body along the long side direction and enhance the stability.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and more specifically, it is an upward spanning water surface photovoltaic support system for brackets. Background Art

[0002] A floating water surface photovoltaic power station utilizes idle water surfaces to arrange floating bodies that support photovoltaic modules, enabling the function of photovoltaic power generation on the water surface. Compared with land-based photovoltaic power stations, the components of a floating water surface photovoltaic power station are placed above the floating bodies, featuring no land occupation and high power generation; while rationally utilizing idle water surface resources to achieve power generation gain, it can also reduce water body evaporation and bring landscape benefits.

[0003] The environment where a floating water surface photovoltaic power station is located is humid, and the support structure components are prone to corrosion. In a windy and wavy environment, it is required that the support structure components can ensure the stability of the photovoltaic array; in the wave of "photovoltaic parity grid connection", how to reduce the cost of the support structure components while ensuring the stable operation of the floating water surface photovoltaic power station for 25 years is a key issue faced by the sustainable development of floating water surface photovoltaic power stations.

[0004] Moreover, with the rapid development of the polysilicon, silicon wafer, solar cell, and photovoltaic module industries, the capacity of a single photovoltaic module continues to increase, and the size specifications of a single photovoltaic module are also constantly increasing. For safety reasons, the installation spacing between multiple photovoltaic modules needs to be greater than half of the long side length of a single photovoltaic module; in a fully floating body type floating water surface photovoltaic power station, the four installation points of a single photovoltaic module need to be fixed on the same floating body. In the case of an increase in the size of the photovoltaic module, the continuous increase in the size of the floating body will lead to many adverse factors such as uneven wall thickness of the floating body, low production efficiency, high equipment power consumption, and few production machines. How to solve the contradiction between the component size and the floating body size is also a problem that needs to be solved in floating water surface photovoltaic power stations.

[0005] Therefore, it is necessary to develop an upward spanning water surface photovoltaic support system for brackets with characteristics such as simple installation, strong scalability, low water surface coverage rate, and convenient operation and maintenance. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies of the above background art and provide an upward spanning water surface photovoltaic support system for brackets.

[0007] To achieve the above purpose, the technical solution of the present invention is: an upward spanning water surface photovoltaic support system for brackets, characterized in that it includes a photovoltaic array backbone grid and a photovoltaic module support system. The photovoltaic array backbone grid includes a grid and a wave protection ring; the grid is in a mesh structure, and the grid includes multiple rows of horizontally arranged maintenance channels spaced in parallel and multiple columns of vertically arranged connection channels spaced in parallel. The horizontally arranged maintenance channels are perpendicular to the vertically arranged connection channels.

[0008] The wave - proof ring is located at the periphery of the grid. The wave - proof ring includes transverse channels at both ends of the longitudinal connection channel and longitudinal channels at both ends of the transverse operation and maintenance channel;

[0009] The photovoltaic module support system includes a plurality of photovoltaic module support units. The photovoltaic module support units are embedded in the longitudinal connection channel in a bridging manner from the bottom of the longitudinal connection channel. The photovoltaic module support units are used to tilt and fix the photovoltaic modules.

[0010] In the above - mentioned technical solution, each row of the transverse operation and maintenance channels is interconnected by a plurality of walkway floats, and each column of the longitudinal connection channels includes a plurality of connection floats. The connection floats are located between two walkway floats in adjacent two rows;

[0011] The transverse channel is interconnected by a plurality of walkway floats. The longitudinal channel includes a plurality of small walkway floats and a plurality of equipment floats. The equipment floats are connected to the transverse operation and maintenance channel, and the equipment floats are located between two small walkway floats;

[0012] The photovoltaic module support unit includes a support float connected to the longitudinal connection channel and a connecting piece located on the support float for fixing the photovoltaic module.

[0013] In the above - mentioned technical solution, the walkway float has a dumbbell - shaped structure. The middle part of the walkway float is a narrow area, and the two ends of the walkway float are wide areas. There are walkway float ear plates at the four corners of the walkway float, and there are side - wall ear plates on both side walls of the narrow area. A plurality of walkway floats are connected through the walkway float ear plates;

[0014] The connection float has a rectangular structure. There are connection float ear plates at the four corners of the connection float. There are two transversely - penetrating grooves on the lower surface of the connection float. There are four support float installation planes corresponding to the two ends of the grooves on the upper surface of the connection float. There are installation round holes penetrating the grooves in the support float installation planes. The connection float is connected to the side - wall ear plates of the narrow area of the walkway float through the connection float ear plates;

[0015] The support float includes a high - level support float and a low - level support float. The bottoms of the high - level support float and the low - level support float are both cross bars. There are high - level support square columns at both ends of the cross bar of the high - level support float, and there are low - level support square columns at both ends of the low - level support float. There are connection cylinders on the cross bar that match the installation round holes. The support float is bridged upward at the bottom of the connection float through the connection cylinders and the installation round holes; The connecting piece is located on the high - level support square column and the top of the low - level support float.

[0016] In the above - mentioned technical solution, the equipment float has a rectangular structure. There are two through - holes in the middle of the equipment float. There are equipment float ear plates at the four corners of the equipment float. There are equipment installation holes for fixing electrical equipment on the long sides of the equipment float;

[0017] The small walkway floating body is of a rectangular structure, and connecting mechanisms are provided at the four corners of the small walkway floating body. The small walkway floating body is connected to the equipment floating body ear plate of the equipment floating body and the walkway floating body ear plate of the walkway floating body through the connecting mechanisms.

[0018] In the above technical solution, mounting columns are provided at the tops of both the high-position support floating body and the low-position support floating body, and mounting column round holes are provided at the central positions of the mounting columns.

[0019] The connecting member includes a bracket mounting plane and a component mounting plane. Connecting member mounting round holes are provided on both the bracket mounting plane and the component mounting plane. The included angle between the bracket mounting plane and the component mounting plane is equal to the installation inclination angle of the photovoltaic module. The connecting member mounting round hole on the bracket mounting plane and the mounting column round hole of the mounting column are fixed by bolts, and the connecting member mounting round hole on the component mounting plane and the mounting hole of the photovoltaic module are fixed by bolts.

[0020] In the above technical solution, the bottom surfaces of the support floating body and the connecting floating body are located in the same plane.

[0021] In the above technical solution, there are multiple columns of the longitudinal channels.

[0022] In the above technical solution, there is one or more equipment floating bodies between two small walkway floating bodies.

[0023] In the above technical solution, there is one or more connecting floating bodies between two walkway floating bodies in adjacent two rows.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1) The photovoltaic module support unit of the present invention is embedded in the longitudinal connecting channel in a bottom-up bridging manner, and the support floating body of the photovoltaic module support unit does not serve as the load of the connecting floating body; the upward bridging embedding of the support floating body in the connecting floating body can resist the deflection of the support floating body along the long side direction and enhance stability.

[0026] 2) The connecting floating body of the present invention is of a rectangular structure. Compared with a floating body with a large through hole having similar length and width, there is no inner side wall area of the through hole, and it is more material-saving under the condition of equivalent buoyancy, reducing the processing difficulty and production waste edges and scraps of the connecting floating body, with lower cost and improving the economy of the floating solar power station.

[0027] 3) The walkway floating body of the present invention is of a dumbbell-shaped structure. The wide area can ensure that sufficient buoyancy is still provided when the operation and maintenance personnel walk to the edge of the walkway floating body. The narrow area is connected to the connecting floating body on both sides. Without affecting the buoyancy requirements, the floating body material can be minimized to the greatest extent, reducing the floating body cost and improving the economy of the floating solar power station.

[0028] 4) The photovoltaic module support system of the present invention uses connectors at a certain angle to replace aluminum alloy pressing blocks and bases, with low cost and simple construction.

[0029] 5) The present invention has good expandability. The longitudinal connection channels between two aisle floats in adjacent rows can be provided with single or multiple connecting floats as needed, and can be expanded from one row of photovoltaic modules and one row of operation and maintenance channels to multiple rows of photovoltaic modules and one row of operation and maintenance channels, with simple construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of the present invention.

[0031] Figure 2 It is a schematic structural diagram of the backbone grid of the photovoltaic array and the photovoltaic module support system.

[0032] Figure 3 It is a schematic structural diagram of the backbone grid of the photovoltaic array.

[0033] Figure 4 It is a schematic structural diagram of two rows of photovoltaic modules and one row of operation and maintenance channels in Embodiment 1.

[0034] Figure 5 It is Figure 4 a schematic structural diagram after hiding the photovoltaic modules.

[0035] Figure 6 It is a schematic structural diagram of the connecting float Figure 1 .

[0036] Figure 7 It is a schematic structural diagram of the connecting float Figure 2 .

[0037] Figure 8 It is a schematic structural diagram of the aisle float.

[0038] Figure 9 It is a schematic structural diagram of the support float.

[0039] Figure 10 It is a schematic structural diagram of the support float straddling the connecting float.

[0040] Figure 11 It is a schematic structural diagram of the connector.

[0041] Figure 12 It is a schematic structural diagram of the equipment float.

[0042] Figure 13 It is a schematic structural diagram of the small aisle float.

[0043] Figure 14 It is a schematic structural diagram of the equipment column in Embodiment 1.

[0044] Figure 15 Schematic structural diagram of the small unit of the equipment column in Embodiment 1.

[0045] Figure 16 Schematic structural diagram of a row of photovoltaic modules and a row of operation and maintenance channels in Embodiment 2.

[0046] Figure 17 Schematic structural diagram of the equipment column in Embodiment 2.

[0047] Figure 18 Schematic structural diagram of the small unit of the equipment column in Embodiment 2.

[0048] Wherein, 1 - backbone grid of photovoltaic array, 11 - grid, 111 - transverse operation and maintenance channel, 112 - longitudinal connection channel, 12 - anti-wave ring, 121 - transverse channel, 122 - longitudinal channel, 2 - photovoltaic module support system, 21 - photovoltaic module support unit, 22 - support floating body, 221 - high-position support floating body, 222 - low-position support floating body, 223 - cross bar, 224 - high-position support square column, 225 - low-position support square column, 226 - connecting cylinder, 227 - mounting column, 228 - mounting column round hole, 23 - connecting piece, 231 - bracket mounting plane, 232 - module mounting plane, 233 - connecting piece mounting round hole, 3 - photovoltaic module, 41 - walkway floating body, 411 - narrow area, 412 - wide area, 413 - walkway floating body ear plate, 414 - side wall ear plate, 42 - connecting floating body, 421 - connecting floating body ear plate, 422 - groove, 423 - support floating body mounting plane, 424 - mounting round hole, 43 - small walkway floating body, 431 - connecting mechanism, 44 - equipment floating body, 441 - through hole, 442 - equipment floating body ear plate, 443 - equipment mounting hole. Detailed implementation manners

[0049] The implementation of the present invention will be described in detail below with reference to the accompanying drawings. However, they do not constitute a limitation to the present invention and are only for illustration purposes. At the same time, the advantages of the present invention will be made clearer and easier to understand through the description.

[0050] Referring to the accompanying drawings, it can be seen that: the upward cross-connected floating photovoltaic support system on the water surface is characterized in that: it includes a backbone grid 1 of photovoltaic array and a photovoltaic module support system 2. The backbone grid 1 of photovoltaic array includes a grid 11 and an anti-wave ring 12; the grid 11 is in a mesh structure, and the grid 11 includes multiple rows of horizontally arranged transverse operation and maintenance channels 111 arranged at intervals and multiple columns of vertically arranged longitudinal connection channels 112 arranged at intervals, and the transverse operation and maintenance channels 111 are perpendicular to the longitudinal connection channels 112;

[0051] The anti-wave ring 12 is located on the periphery of the grid 11, and the anti-wave ring 12 includes transverse channels 121 at both ends of the longitudinal connection channel 112 and longitudinal channels 122 at both ends of the transverse operation and maintenance channel 111;

[0052] The photovoltaic module support system 2 includes a plurality of photovoltaic module support units 21. The photovoltaic module support units 21 are inserted into the longitudinal connection channels 112 in a bridging manner from the bottom of the longitudinal connection channels 112 upwards. The photovoltaic module support units 21 are used to fixedly hold the photovoltaic modules 3 in an inclined manner.

[0053] Each row of the transverse operation and maintenance channels 111 is interconnected by a plurality of walkway floats 41. Each column of the longitudinal connection channels 112 includes a plurality of connection floats 42. The connection floats 42 are located between two walkway floats 41 in two adjacent rows.

[0054] The transverse channel 121 is interconnected by a plurality of walkway floats 41. The longitudinal channel 122 includes a plurality of small walkway floats 43 and a plurality of equipment floats 44. The equipment floats 44 are connected to the transverse operation and maintenance channels 111. The equipment floats 44 are located between two small walkway floats 43.

[0055] The photovoltaic module support unit 21 includes a support float 22 connected to the longitudinal connection channel 112 and a connecting member 23 located on the support float 22 for fixing the photovoltaic module 3.

[0056] As Figure 8 shown, the walkway float 41 has a dumbbell-shaped structure. The middle part of the walkway float 41 is a narrow area 411, and the two ends of the walkway float 41 are wide areas 412. There are walkway float ear plates 413 at the four corners of the walkway float 41. There are side wall ear plates 414 on both side walls of the narrow area 411. A plurality of walkway floats 41 are connected through the walkway float ear plates 413.

[0057] As Figure 6 and Figure 7 shown, the connection float 42 has a rectangular structure. There are connection float ear plates 421 at the four corners of the connection float 42. There are two transversely penetrating grooves 422 on the lower surface of the connection float 42. There are four support float installation planes 423 corresponding to the two ends of the grooves 422 on the upper surface of the connection float 42. There are installation round holes 424 penetrating the grooves 422 in the support float installation planes 423. The connection float 42 is connected to the side wall ear plates 414 of the narrow area 411 of the walkway float 41 through the connection float ear plates 421.

[0058] As Figure 9 and Figure 10As shown in the figure, the support floating body 22 includes a high-position support floating body 221 and a low-position support floating body 222. The bottoms of both the high-position support floating body 221 and the low-position support floating body 222 are cross bars 223. At both ends of the cross bar 223 of the high-position support floating body 221, there are high-position support square columns 224, and at both ends of the low-position support floating body 222, there are low-position support square columns 225. On the cross bar 223, there are connecting cylinders 226 that match the installation round holes 424. The support floating body 22 is upwardly bridged at the bottom of the connecting floating body 42 through the connecting cylinders 226 and the installation round holes 424; the connecting member 23 is located at the tops of the high-position support square columns 224 and the low-position support floating body 222.

[0059] As Figure 12 shown, the equipment floating body 44 is of a rectangular structure. There are two through holes 441 in the middle of the equipment floating body 44. Equipment floating body ear plates 442 are provided at the four corners of the equipment floating body 44. Equipment installation holes 443 for fixing electrical equipment are provided on the long sides of the equipment floating body 44;

[0060] As Figure 13 shown, the small walkway floating body 43 is of a rectangular structure. Connecting mechanisms 431 are provided at the four corners of the small walkway floating body 43. The small walkway floating body 43 is connected to the equipment floating body ear plates 442 of the equipment floating body 44 and the walkway floating body ear plates 413 of the walkway floating body 41 through the connecting mechanisms 431.

[0061] At the tops of both the high-position support floating body 221 and the low-position support floating body 222, there are installation columns 227, and installation column round holes 228 are provided at the central positions of the installation columns 227;

[0062] As Figure 11 shown, the connecting member 23 includes a bracket installation plane 231 and a component installation plane 232. Connecting member installation round holes 233 are provided on both the bracket installation plane 231 and the component installation plane 232. The included angle between the bracket installation plane 231 and the component installation plane 232 is equal to the installation inclination angle of the photovoltaic module 3. The connecting member installation round hole 233 on the bracket installation plane 231 and the installation column round hole 228 of the installation column 227 are fixed by bolts, and the connecting member installation round hole 233 on the component installation plane 232 and the installation hole of the photovoltaic module 3 are fixed by bolts.

[0063] The bottom surface of the support floating body 22 and the bottom surface of the connecting floating body 42 are in the same plane.

[0064] The longitudinal channels 122 have multiple columns.

[0065] There is one or more equipment floating bodies 44 between two small walkway floating bodies 43.

[0066] There is one or more connecting floating bodies 42 between two walkway floating bodies 41 in adjacent two rows.

[0067] Embodiment 1

[0068] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 shown, in the upward cross-connected floating photovoltaic support system proposed in this embodiment, there are two connecting floating bodies 42 between two aisle floating bodies 41 in adjacent two rows, corresponding to one row of operation and maintenance channels for two rows of photovoltaic modules 3.

[0069] As Figure 14 , Figure 15 shown, the longitudinal channel 122 of the wave protection ring 12 can form an equipment row by horizontally expanding multiple columns for placing equipment such as busbar boxes and cables. The equipment row is composed of multiple equipment row small units s-1; the equipment row small unit S-1 of this embodiment is composed of a single small aisle floating body 43 and two equipment floating bodies 44.

[0070] Embodiment 2

[0071] As Figure 16 , Figure 17 , Figure 18 shown, the difference between this embodiment and Embodiment 1 is that Embodiment 2 adopts the method of one row of photovoltaic modules and one row of photovoltaic operation and maintenance channels. There is a single connecting floating body 42 between two aisle floating bodies 41 in adjacent two rows. The equipment row small unit S-2 is composed of a single small aisle floating body 43 and a single equipment floating body 44.

[0072] Other parts not described belong to the prior art.

Claims

1. The upward cross-connected floating PV support system, characterized in that: It includes a photovoltaic array backbone grid (1) and a photovoltaic module support system (2). The photovoltaic array backbone grid (1) includes a grid (11) and a wave guard (12). The grid (11) is in a mesh structure, and the grid (11) includes multiple rows of horizontally arranged maintenance channels (111) spaced in parallel and multiple columns of vertically arranged connection channels (112) spaced in parallel. The horizontally arranged maintenance channels (111) are perpendicular to the vertically arranged connection channels (112). The wave guard (12) is located on the periphery of the grid (11). The wave guard (12) includes horizontal channels (121) located at both ends of the vertically arranged connection channels (112) and vertical channels (122) located at both ends of the horizontally arranged maintenance channels (111). The photovoltaic module support system (2) includes multiple photovoltaic module support units (21). The photovoltaic module support units (21) are embedded in the vertically arranged connection channels (112) in a bridging manner from the bottom of the vertically arranged connection channels (112). The photovoltaic module support units (21) are used to tilt and fix the photovoltaic modules (3). Each row of the horizontally arranged maintenance channels (111) is interconnected by multiple walkway floats (41). Each column of the vertically arranged connection channels (112) includes multiple connection floats (42). The connection floats (42) are located between two walkway floats (41) in adjacent two rows. The horizontal channels (121) are interconnected by multiple walkway floats (41). The vertical channels (122) include multiple small walkway floats (43) and multiple equipment floats (44). The equipment floats (44) are connected to the horizontally arranged maintenance channels (111). The equipment floats (44) are located between two small walkway floats (43). The photovoltaic module support unit (21) includes a support float (22) connected to the vertically arranged connection channels (112) and a connecting piece (23) located on the support float (22) for fixing the photovoltaic module (3). The walkway float (41) is in a dumbbell shape. The middle part of the walkway float (41) is a narrow area (411), and both ends of the walkway float (41) are wide areas (412). Walkway float lugs (413) are provided at the four corners of the walkway float (41). Side wall lugs (414) are provided on both side walls of the narrow area (411). Multiple walkway floats (41) are connected through the walkway float lugs (413). The connection float (42) is in a rectangular shape. Connection float lugs (421) are provided at the four corners of the connection float (42). There are two horizontally penetrating grooves (422) on the lower surface of the connection float (42). There are four support float installation planes (423) corresponding to the two ends of the grooves (422) on the upper surface of the connection float (42). Installation round holes (424) penetrating the grooves (422) are provided in the support float installation planes (423). The connection float (42) is connected to the side wall lugs (414) of the narrow area (411) of the walkway float (41) through the connection float lugs (421). The support floating body (22) includes a high-level support floating body (221) and a low-level support floating body (222). The bottoms of the high-level support floating body (221) and the low-level support floating body (222) are both cross bars (223). At both ends of the cross bar (223) of the high-level support floating body (221), there are high-level support square columns (224), and at both ends of the low-level support floating body (222), there are low-level support square columns (225). On the cross bar (223), there are connecting cylinders (226) matching the installation round holes (424). The support floating body (22) is upwardly bridged to the bottom of the connecting floating body (42) through the connecting cylinders (226) and the installation round holes (424). The connecting member (23) is located at the tops of the high-level support square columns (224) and the low-level support floating body (222). The bottom surface of the support floating body (22) and the bottom surface of the connecting floating body (42) are in the same plane. The support floating body of the photovoltaic module support unit does not act as a load on the connecting floating body. The upward bridging and embedding of the support floating body into the connecting floating body can resist the deflection of the support floating body along the long side direction and enhance stability. The equipment floating body (44) is of a rectangular structure, and there are two through holes (441) in the middle of the equipment floating body (44).

2. The upward bridging type water surface photovoltaic support system according to claim 1, characterized in that: Equipment floating body ears (442) are provided at the four corners of the equipment floating body (44). The small walkway floating body (43) is of a rectangular structure. Connecting mechanisms (431) are provided at the four corners of the small walkway floating body (43). The small walkway floating body (43) is connected to the equipment floating body ears (442) of the equipment floating body (44) and the walkway floating body ears (413) of the walkway floating body (41) through the connecting mechanisms (431).

3. The upward cross-connected floating PV support system according to claim 2, characterized in that: At the tops of both the high-level support floating body (221) and the low-level support floating body (222), there are installation columns (227), and installation column round holes (228) are provided at the central positions of the installation columns (227). The connecting member (23) includes a bracket installation plane (231) and a component installation plane (232). Connecting member installation round holes (233) are provided on both the bracket installation plane (231) and the component installation plane (232). The angle between the bracket installation plane (231) and the component installation plane (232) is equal to the installation inclination angle of the photovoltaic module (3). The connecting member installation round hole (233) on the bracket installation plane (231) and the installation column round hole (228) of the installation column (227) are fixed by bolts, and the connecting member installation round hole (233) on the component installation plane (232) and the installation hole of the photovoltaic module (3) are fixed by bolts.

4. The upward cross-connected floating PV support system according to claim 3, wherein: There are multiple columns of the longitudinal channels (122).

5. The upward cross-connected floating PV support system according to claim 4, wherein: There is one or more equipment floating bodies (44) between two small walkway floating bodies (43).

6. The upward cross-connected floating PV support system according to claim 5, wherein: There is one or more connecting floating bodies (42) between two adjacent rows of walkway floating bodies (41).

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