CN107453689B - Modular floating type photovoltaic array - Google Patents
Modular floating type photovoltaic array Download PDFInfo
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- CN107453689B CN107453689B CN201610300507.8A CN201610300507A CN107453689B CN 107453689 B CN107453689 B CN 107453689B CN 201610300507 A CN201610300507 A CN 201610300507A CN 107453689 B CN107453689 B CN 107453689B
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- 238000010276 construction Methods 0.000 description 11
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- 238000013461 design Methods 0.000 description 9
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- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004873 anchoring Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
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- 229920001903 high density polyethylene Polymers 0.000 description 4
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- 230000000149 penetrating effect Effects 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 208000034699 Vitreous floaters Diseases 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4453—Floating structures carrying electric power plants for converting solar energy into electric energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The application relates to a photovoltaic array comprising: one or more photovoltaic modules, each photovoltaic module comprising: a boundary comprising a first plurality of lateral floats and a plurality of longitudinal floats, a second plurality of lateral floats within the boundary; and a plurality of main floats within the boundary, each main float having a solar panel disposed thereon, wherein the plurality of main floats are connected between the second plurality of lateral floats or the first plurality of lateral floats and the second plurality of lateral floats; and a protective wall surrounding the one or more photovoltaic modules.
Description
Technical Field
The application relates to the technical field of clean energy, in particular to a modularized floating type photovoltaic array.
Background
Solar energy is a clean energy source. The direct conversion of solar energy into electrical energy by means of photovoltaic power stations is an efficient way of utilizing solar energy. Photovoltaic power plants are currently mainly built on the ground, for example by using idle land. However, because of the small intensity of the distribution of the irradiation energy, which is greatly affected by the meteorological conditions, the land-based photovoltaic power plant generally needs to occupy a large area. In economically developed areas, land resources are valuable, and construction of photovoltaic power stations is greatly limited. Waterborne photovoltaic refers to the construction of photovoltaic power stations using the surface of the water that is left idle. The water photovoltaic power station has the advantages of not occupying land resources, reducing water evaporation, avoiding algae growth and the like, and has wide development prospect.
Disclosure of Invention
Aiming at the technical problems in the prior art, the application provides a photovoltaic array, which comprises: one or more photovoltaic modules, each photovoltaic module comprising: a boundary comprising a first plurality of lateral floats and a plurality of longitudinal floats, a second plurality of lateral floats within the boundary; and a plurality of main floats within the boundary, each main float having a solar panel disposed thereon, wherein the plurality of main floats are connected between the second plurality of lateral floats or the first plurality of lateral floats and the second plurality of lateral floats; and a protective wall surrounding the one or more photovoltaic modules.
A photovoltaic array as described above, further comprising: a longitudinal floating body positioned at the boundary and connected between two or four of the first plurality of transverse floating bodies.
A photovoltaic array as described above, further comprising: an intertransverse floating body positioned at the boundary and connected between the two first plurality of transverse floating bodies and/or between the main floating bodies.
A photovoltaic array as described above wherein the primary float comprises a plurality of standoffs connected to the solar panel by long or short standoffs.
The photovoltaic array as described above, wherein the main floating body is connected with the lateral floating body and/or the lateral floating body is connected with the longitudinal floating body through a plurality of groups of pull lugs, and each group of pull lugs comprises more than 2 pull lugs.
A photovoltaic array as described above wherein the pull tabs are disposed within the grooves of the main or lateral or longitudinal floats.
A photovoltaic array as described above wherein the upper surface and the lower surface of the main or lateral or longitudinal or inter-lateral floats are of a different pattern.
A photovoltaic array as described above wherein the support comprises a platform having a trapezoidal cross section and a "T" shaped strip on said platform.
The photovoltaic array as described above, wherein the long or short support comprises a support body and a connector, the lower portion of the connector extends inwardly on the support platform and mates with a "T" shaped bar on the support platform, the upper portion of the connector is connected to the support body, and the lower portion of the support body extends outwardly on the support platform.
A photovoltaic array as described above wherein the long or short legs comprise leg bodies, the lower portions of which extend inwardly on the support platform to mate with the "T" shaped strips on the support platform.
A photovoltaic array as described above wherein the elongate support comprises a transition portion.
The photovoltaic array as described above, wherein the upper portion of the long or short leg comprises a pallet that is mated with a bending platen to secure the solar panel, wherein the bending platen comprises a first portion mated with the pallet and a second portion mated with the upper portion of the long or short leg, wherein the second portion of the bending platen is removably secured to the upper portion of the long or short leg.
A photovoltaic array as described above wherein the edges of the carrier are bent and the edges of the first portion of the bending platen are correspondingly bent.
A photovoltaic array as described above wherein the second portion of the bending platen is bent inwardly.
A photovoltaic array as described above, wherein the protective wall comprises a plurality of posts and a wall between the plurality of posts, wherein at least a portion of the wall is positioned underwater.
A photovoltaic array as described above wherein the protective wall forms a channel and/or an operating platform.
A photovoltaic array as described above wherein the photovoltaic modules are connected to the posts of the protective wall by ropes.
A photovoltaic array as described above wherein the photovoltaic module comprises a pull member connected between the main float and/or the lateral float, the tether being connected to the photovoltaic module by the pull member.
A photovoltaic array as described above wherein the cord includes a spring thereon such that the cord is in tension.
According to another aspect of the application, a water photovoltaic power plant is proposed, comprising a photovoltaic array as described above.
Drawings
Preferred embodiments of the present application will be described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of a floating photovoltaic array according to one embodiment of the present application;
FIG. 2 is a schematic view of a photovoltaic module according to one embodiment of the present application;
FIG. 3 is a schematic illustration of the connection between the main and lateral floats according to one embodiment of the present application;
FIG. 4 is a schematic illustration of the connection between the transverse floating body and the main floating body according to one embodiment of the application;
5A-5H are schematic illustrations of a primary floating body according to one embodiment of the application;
FIGS. 6A-6F are schematic illustrations of a lateral floating body according to one embodiment of the present application;
figures 7A-7E are schematic diagrams of a longitudinal float according to an embodiment of the application;
FIGS. 8A-8E are schematic illustrations of an interlateral floating body according to one embodiment of the present application;
9A-9C are schematic illustrations of a mounting bracket according to one embodiment of the application;
FIG. 10 is an exploded view of a simplified version of a mounting bracket according to another embodiment of the present application;
FIGS. 11A-11F are schematic illustrations of a stent structure according to an embodiment of the present application;
FIG. 12 is a schematic view of a protective wall according to one embodiment of the application;
FIG. 13 is an exploded view of the structure of a protective wall according to one embodiment of the application;
FIG. 14 is a schematic view of an anchoring structure of a photovoltaic array according to one embodiment of the present application;
FIG. 15 is a schematic view of a pull member mated with a floating body in accordance with one embodiment of the present application; and
FIG. 16 is a schematic view of a pull and float installation according to one embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments of the application. In the drawings, like reference numerals describe substantially similar components throughout the different views. Various specific embodiments of the application are described in sufficient detail below to enable those skilled in the art to practice the teachings of the application. It is to be understood that other embodiments may be utilized or structural, logical, or electrical changes may be made to embodiments of the present application.
One embodiment of a photovoltaic power plant on water is to use a floating photovoltaic array. The floating body of the existing floating type photovoltaic array adopts an integrated floating body with a fixed angle or adopts a floating table type installation mode. Because the sun irradiation angles of different regions are different, the floating body with a fixed angle is difficult to adapt to a plurality of regions, so that the cost is easy to increase. And because the assembly must be installed according to certain angle, the difficulty of body connection and installation also increases, causes the reduction of efficiency of construction. In order to improve the construction efficiency, sometimes, a pre-installation method is necessary. However, this method requires a large-sized construction machine, and requires a construction site. The floating platform type installation mode is to connect the standardized square floating bodies into a whole to serve as a base platform, and then erect a bracket similar to a ground power station on the base platform. The construction difficulty is high, and the wind and wave resistance is poor.
The application provides a novel floating photovoltaic array which can be used for a water photovoltaic power station, has strong adaptability, high structural strength and convenient construction, and is suitable for large-scale installation and construction.
Fig. 1 is a schematic diagram of a floating photovoltaic array according to one embodiment of the present application. As shown in fig. 1, photovoltaic array 100 includes one or more photovoltaic modules 101, 102, 103, and 104. Those skilled in the art will appreciate that only 4 photovoltaic modules are schematically illustrated in fig. 1; and the photovoltaic array 100 may include any number of photovoltaic modules as desired. Likewise, the number of solar panels included in the photovoltaic module is also illustrative. Any number of solar panels can be included in one photovoltaic module according to practical situations.
As shown in fig. 1, the photovoltaic array 100 further includes protective walls 110 surrounding one or more photovoltaic modules. As shown, the protective wall 110 is generally rectangular and surrounds all photovoltaic modules on four sides. Those skilled in the art will appreciate that the protective wall of fig. 1 is also illustrative. The protective wall 110 may be of any shape, surrounding or partially surrounding all or part of the photovoltaic module.
Fig. 2 is a schematic view of a photovoltaic module according to one embodiment of the present application. As shown, the photovoltaic module 200 includes a plurality of main floats 201 and a panel 202 disposed on the main floats 201. According to one embodiment of the application, a panel 202 is provided on a main float 201. The photovoltaic module 200 further includes a boundary 210 surrounding the plurality of primary floating bodies 201. The boundary 210 includes a plurality of transverse floating bodies 203 and a plurality of longitudinal floating bodies 204. Within the boundary 210, a plurality of transverse floating bodies 203 are arranged in a row. The main floating body 201 is connected between a plurality of lateral floating bodies 203. The longitudinal floating body 204 is connected between the plurality of transverse floating bodies 203. According to one embodiment of the application the main floating body is connected to 4 transverse floating bodies. The longitudinal floating bodies are connected to 2 or 4 transverse floating bodies.
According to one embodiment of the application, an inter-lateral floating body 205 is included between the lateral floating bodies 203 on the boundary 210, which is connected between two adjacent ones of the lateral floating bodies 203 on the boundary 210 and is also connected to the main floating body 201. According to one embodiment of the application, there may or may not be an inter-lateral floating body 205 between a plurality of lateral floating bodies 203 arranged in a row within a boundary.
Figure 3 is a schematic illustration of the connection between the main and lateral floats according to an embodiment of the present application. Fig. 3 shows a portion 300 of a photovoltaic module. As shown in fig. 3, the main floating body 201 is substantially rectangular and is connected to 4 lateral floating bodies 203 near its 4 corners, respectively. Further, an inter-lateral floating body 205 is connected between the two lateral floating bodies 203 located on the boundary. Further, the inter-lateral floating body 205 is connected to both corners of the main floating body 201, thereby playing a reinforcing role on the overall structure.
Figure 4 is a schematic illustration of the connection between the transverse floating body and the main floating body according to one embodiment of the application. Fig. 4 shows a portion 400 of a photovoltaic module. As shown in fig. 4, the lateral floating body 203 is substantially rectangular and is connected to the 4 main floating bodies 201 near the 4 corners thereof, respectively.
Fig. 5A-5G are schematic views of a primary floating body according to one embodiment of the application. Fig. 5A and 5B are front and rear perspective views of the main floating body, and fig. 5C and 5D are top and front views of the main floating body, showing the overall shape of the main floating body. Fig. 5E is a cross-sectional view of the main floating body, illustrating the internal structure of the main floating body. And fig. 5F and 5G are partial enlarged views of the support and the tab of the main floating body, respectively, showing the specific structures of both.
As shown, the main floating body 500 includes a main body 501. The upper surface of the body 501 is substantially planar and includes one or more standoffs 502. The main body 501 is further provided with one or more sets of pull lugs 503, each set of pull lugs comprising more than 2 pull lugs.
According to one example of the application, the upper surface of the body 501 is generally rectangular. 4 supports are respectively arranged at 4 corners of the main floating body. The support is used for being connected with the bracket so as to support the solar panel fixed with the bracket. And 4 groups of pull lugs are respectively arranged on two side surfaces of the main floating body connected with the transverse floating body, and each group is 2. Each group of pull lugs is used for being connected with one transverse floating body. Specifically, each set of tabs includes a first tab 504 disposed at the corner of the main body and extending outwardly from the main body and a second tab 505 disposed on the side of the main body, the second tab 505 being adjacent to the first tab 504 but spaced from the first tab 504.
According to one embodiment of the application, the main floating body is not slightly concave on the two sides connected with the transverse floating body, so that the strength of the main body is improved. Further, according to an embodiment of the present application, a plurality of grooves 506 are provided on both sides of the main floating body connected to the lateral floating body, respectively, and the second pull tab 505 of each set of pull tabs is received in the groove 506. Further, according to one embodiment of the application, a support 502 is provided on the upper surface 501 of the main floating body between the first pull tab 504 and the second pull tab 505 of each set of pull tabs. The design of the interval between the support and the pull lug is also beneficial to improving the strength of the main body, in particular the action of lateral external force.
The strength of the main floating body and the firm connection of the main floating body and the transverse floating body have a significant influence on the stability of the photovoltaic array. The main floating body of the application is improved in material and structure so as to improve the strength of the main floating body and the firmness of connection with the transverse floating body.
According to one example of the application, the main floating body is made of high-density polyethylene material, and has high strength, good toughness and durability. According to an example of the application, the main floating body and the transverse floating body are connected by adopting at least double pull lugs, so that the firmness of connection is greatly increased. In extreme conditions, even if one tab breaks, the other tab is sufficient to firmly connect the main and lateral floats. Moreover, the design enables the interval between maintenance to be longer, and reduces the overall maintenance cost. According to an embodiment of the application, the recess in the side of the main floating body can accommodate not only the second pull tab of the main floating body but also a third pull tab situated at the corner of a set of pull tabs of similar arrangement of the transverse floating body. Similarly, the first pull tab on the corner of the main float may also be received in a recess similarly provided in the transverse float to receive the fourth pull tab. Therefore, the main floating body and the transverse floating body are connected through at least two pull lugs, and an embedded structure can be formed between the main floating body and the transverse floating body, so that the connection strength between the main floating body and the transverse floating body is further improved. Meanwhile, the design of the grooves on the side face of the main floating body is beneficial to improving the strength of the main floating body.
Further, as shown in the figure, mesh concave lines with different patterns are respectively arranged on the upper surface and the lower surface of the main floating body. The net-shaped concave line is equivalent to ribbing the main floating body, so that the capability of the main floating body for resisting external force can be increased, and the strength of the main floating body is increased. The patterns on the upper surface and the lower surface are different, so that the directions of the main floating body resisting the external force are different, and the strength of the main floating body is improved. According to one embodiment of the application, the upper surface is provided with net-shaped concave lines 507 which are perpendicular to each other at 45 degrees and 135 degrees. The lower surface is provided with 0 and 90 degree mutually perpendicular reticular concave lines 508.
Further, according to one embodiment of the application, an opening 509 is provided through the main float. The existence of the opening reduces the span of the main floating body and increases the strength of the main floating body. According to one embodiment of the application, the opening is in the form of a bar, the long side of which is perpendicular to the direction of the transverse floating body. Due to the fixing effect of the transverse floating body, the longitudinal stress is not easy to damage. The directional arrangement of such openings increases the resistance of the main floating body to transverse stresses, making the main floating body stronger.
Further, referring to fig. 5E, the main floating body is hollow (the hatched portion in the figure indicates a hollow cross section). The hollow floating body can reduce material consumption and increase the buoyancy of the main floating body. At the same time, hollow structures also have certain benefits in terms of resistance to stress and deformation.
Further, referring to fig. 5F, a pedestal 503 is provided on the main floating body, the pedestal being generally bar-shaped and including a trapezoidal platform 510 and a "T" shaped rib 511 (the shape of the cross section is shown in fig. 5E) extending from the trapezoidal platform. Two grooves are formed between the top lateral extensions 512 of the "T" ribs and the trapezoidal shaped platform 510 for mating with the mounting of the bracket.
Further, referring to fig. 5G, the tab 501 is integrally formed with the main float and extends naturally outward from the main float. The tab includes a through hole 514 to allow the screw 513 to pass therethrough. Radial and annular reinforcing ribs 515 are provided on the lugs in order to increase the strength of the lugs.
Fig. 6A-6F are schematic views of a lateral floating body according to one embodiment of the present application. Fig. 6A and 6B are front and rear perspective views of the lateral floating body, fig. 6C is a top view of the lateral floating body, and fig. 6D is a side view of the lateral floating body, showing the overall shape of the lateral floating body. And fig. 6E is a sectional view of the lateral floating body, showing the internal structure of the lateral floating body. And fig. 6F is a partial enlarged view of the tab, showing its specific structure.
The lateral float includes a body 610. The upper surface of the transverse floating body is approximately strip-shaped. The upper surface of the transverse floating body is basically flat and comprises at least one group of pull lugs, and each group of pull lugs comprises at least two pull lugs. According to an example of the present application, as shown, 4 sets of pull lugs, 2 each, are provided on both sides of the lateral floating body 600 to which the main floating body is connected. Each set of lugs comprises a third lug 601 arranged on the corner of the transverse floating body and extending outwards and a fourth lug 602 arranged on the side of the transverse floating body, the fourth lug 602 being adjacent to the third lug 601 and spaced apart from the third lug 601 located on the corner. Further, according to an embodiment of the present application, a plurality of grooves 603 are provided on both sides of the main floating body connected to the lateral floating body, respectively, and the fourth tab 602 of each set of tabs is received in the groove 603.
The strength of the lateral floats and the strong connection between the lateral floats and the main floats have a significant impact on the stability of the photovoltaic array. The transverse floating body of the application is improved in material and structure to improve the strength and the firmness of connection.
According to one example of the application, the transverse floating body is made of high-density polyethylene material, and has high strength, good toughness and durability. According to an example of the application, the connection mode of at least two pull lugs is adopted between the transverse floating body and the main floating body, so that the firmness of connection is greatly increased. In extreme conditions, even if one tab breaks, the other tab is sufficient to firmly connect the main and lateral floats. Moreover, the design enables the interval between maintenance to be longer, and reduces the overall maintenance cost. According to an embodiment of the application, the recess in the side of the transverse floating body can accommodate, in addition to the fourth pull tab of the transverse floating body, also the first pull tab situated at the corner of a set of pull tabs of a similar arrangement of the main floating body. Similarly, the third tab at the corner of the transverse floating body may also be received in a similarly disposed recess in the main floating body that receives the second tab. Therefore, the main floating body and the transverse floating body are connected through at least two pull lugs, and an embedded structure can be formed between the main floating body and the transverse floating body, so that the connection strength between the main floating body and the transverse floating body is further improved. Meanwhile, the design of the grooves on the side surfaces of the transverse floating bodies is beneficial to improving the strength of the main floating bodies.
Further, as shown in the figure, mesh concave lines with different patterns are respectively arranged on the upper surface and the lower surface of the transverse floating body. The net concave line is ribbed for the transverse floating body, so that the capability of the transverse floating body for resisting external force can be improved, and the strength of the transverse floating body is improved. The upper and lower surface patterns are different so that the direction of the external force resisted by the transverse floating body is also all different. According to one embodiment of the application, the upper surface is provided with net-shaped concave lines 604 at 45 and 135 degrees perpendicular to each other. The lower surface is provided with 0 and 90 degree mutually perpendicular net-shaped concave lines 605.
Further, referring to fig. 6D and 6E, the lateral float is hollow (the hatched portion in the figure shows a hollow cross section), and the lower surface thereof is provided with a non-penetrating opening 606. The openings are also present in order to increase the strength of the transverse floating body. According to one example of the application, the opening is bar-shaped and stepped in the direction of the transverse floating body, gradually shrinking from the lower surface to the upper surface. In order to increase the strength, hollow reinforcing ribs are arranged below the upper surface.
The strip-shaped opening at the lower part of the transverse floating body can reduce material consumption and increase buoyancy of the transverse floating body. At the same time, the strip-shaped opening structure has a certain benefit for resisting stress.
Further, referring to fig. 6F, the pull tab is integrally formed with the lateral float and extends naturally outward from the lateral float. The pull lugs are provided with through holes for allowing the screws to pass through. In order to increase the strength of the pull lugs, radial and annular reinforcing ribs are arranged on the pull lugs.
Fig. 7A-7E are schematic views of a longitudinal floating body according to one embodiment of the application. Fig. 7A and 7B are front and rear perspective views of the longitudinal floating body, fig. 7C is a top view of the longitudinal floating body, and fig. 7D is a side view of the longitudinal floating body, showing the overall shape of the longitudinal floating body. And fig. 7E is a sectional view of the longitudinal floating body, showing the internal structure of the longitudinal floating body.
The longitudinal float includes a body 710. The upper surface of the longitudinal floating body is approximately strip-shaped and comprises one or more groups of pull lugs, and each group of pull lugs comprises at least 2 pull lugs. As shown, the longitudinal floating body 700 is provided with 2 sets of pull lugs on each of two sides to which the transverse floating body is connected, 2 sets of pull lugs each (4 sets of pull lugs may be included if 4 transverse floating bodies are connected). Each set of tabs includes a fifth tab 701 disposed on a corner of the longitudinal float and extending outwardly therefrom and a sixth tab 702 disposed on a side of the longitudinal float, the sixth tab 702 being spaced apart from the fifth tab 701 on the corner adjacent to the fifth tab 701. Each group of pull lugs of the longitudinal floating body is used for being connected with one transverse floating body. Further, according to an embodiment of the present application, a plurality of grooves 703 are provided on the sides of the longitudinal floating body connected to the transverse floating body, respectively, and the sixth tab 702 of each set of tabs is received in the groove 703.
The longitudinal floating body of the application is improved in material and structure to improve the strength and the firmness of connection. According to one example of the application, the longitudinal floating body is made of high-density polyethylene material, and has high strength, good toughness and durability. According to an example of the application, the connection mode of at least two pull lugs is adopted between the longitudinal floating body and the transverse floating body, so that the firmness of connection is greatly increased. In extreme conditions, even if one tab breaks, the other tab is sufficient to firmly connect the main and lateral floats. Moreover, the design enables the interval between maintenance to be longer, and reduces the overall maintenance cost. According to an embodiment of the application, the recess in the side of the longitudinal floating body can accommodate not only the sixth lug of the longitudinal floating body but also a third lug situated at the corner of a set of lugs of a similar arrangement of the transverse floating body. Similarly, the third tab at the corner of the transverse floating body may also be received in a similarly disposed recess in the longitudinal floating body that receives the sixth tab. Therefore, the longitudinal floating body and the transverse floating body are connected through at least two pull lugs, and an embedded structure can be formed between the longitudinal floating body and the transverse floating body, so that the connection strength between the longitudinal floating body and the transverse floating body is further improved. Meanwhile, the design of the grooves on the side surfaces of the longitudinal floating bodies is beneficial to improving the strength of the main floating bodies.
Further, as shown in the figure, mesh concave lines with different patterns are respectively arranged on the upper surface and the lower surface of the longitudinal floating body. The net-shaped concave line is equivalent to a rib of the longitudinal floating body, so that the capability of the longitudinal floating body for resisting external force can be improved, and the strength of the longitudinal floating body is improved. The patterns of the upper surface and the lower surface are different, so that the directions of the external force resistance of the longitudinal floating bodies are also different. According to one example of the application, the upper surface is provided with net-shaped concave lines 704 at 45 and 135 degrees perpendicular to each other. The lower surface is provided with 0 and 90 degree mutually perpendicular reticular concave lines 705.
Further, referring to fig. 7D and 7E, the longitudinal floating body is hollow (the hatched portion in the figure shows a hollow cross section), and a non-penetrating opening 706 is provided in the lower surface thereof. The openings are also present in order to increase the strength of the longitudinal floating body. According to one example of the application, the opening is strip-shaped in the direction of the longitudinal float and is stepped, tapering from the lower surface to the upper surface. In order to increase the strength, hollow reinforcing ribs are arranged below the upper surface.
The strip-shaped opening at the lower part of the longitudinal floating body can reduce material consumption and increase buoyancy of the longitudinal floating body. At the same time, the strip-shaped opening structure has a certain benefit for resisting stress.
Fig. 8A-8E are schematic diagrams of an interlateral floating body according to one embodiment of the present application. Fig. 8A and 8B are front and rear perspective views of the inter-lateral floating body, fig. 8C is a top view of the inter-lateral floating body, and fig. 8D is a front view of the inter-lateral floating body, showing the overall shape of the inter-lateral floating body. And fig. 8E is a sectional view of the inter-lateral floating body, showing the internal structure of the inter-lateral floating body.
The interlateral float includes a body 810. The interlateral float 800 is generally square and includes a plurality of tabs 801-804 disposed at the corners and extending naturally outward. According to one embodiment of the application, the pull lugs are arranged on the sides of the intertransverse floating body. According to one example of the application, the 4 lugs of the intertransverse floating body are connected to both the main floating body and the transverse floating body. Or 2 pull lugs of the transverse floating body are simultaneously connected to the main floating body and the transverse floating body; the other 2 pull lugs are connected to the transverse floating body. According to one embodiment of the application, the transverse floating body is made of high-density polyethylene material, and has high strength, good toughness and long service life. Furthermore, the inter-transverse floating body adopts various improvements in structure so as to improve the strength and the connection firmness of the inter-transverse floating body. For example, a double-pull lug connection mode is adopted between the transverse floating body and other floating bodies, so that the connection firmness is greatly increased. In extreme conditions, even if one pull tab breaks, the other pull tab is sufficient to firmly connect the intertransverse floating body to the other floating body, thereby enabling timely maintenance. The design of the grooves in the side surfaces of the transverse floating bodies is also beneficial to improving the strength of the transverse floating bodies.
Further, as shown in the figure, mesh concave lines with different patterns are respectively arranged on the upper surface and the lower surface of the transverse floating body. The netlike concave lines can increase the capability of the inter-transverse floating body to resist external force and increase the strength of the inter-transverse floating body. The patterns of the upper surface and the lower surface are different, so that the directions of the external force resistance of the transverse floating bodies are all different. According to one example of the present application, the upper surface is provided with net-shaped concave lines 805 perpendicular to each other at 45 degrees and 135 degrees. The lower surface is provided with 0 and 90 degree mutually perpendicular reticular concave lines 806. Further, referring to fig. 8D and 8E, the inter-transverse floating body is hollow (the hatched portion in the figure indicates a hollow cross section).
Fig. 9A-9C are schematic diagrams of a mounting bracket according to one embodiment of the application. Fig. 9A shows a schematic cross-sectional view of a solar panel mounted to a main floating body by brackets. As previously indicated, the main float supports the other solar panels by means of two sets of short and long supports. FIG. 9B shows the mounting structure of the long bracket; fig. 9C shows the mounting structure of the short bracket. Fig. 10 is an exploded view of a simplified version of a mounting bracket according to another embodiment of the present application. Fig. 11A-11F are schematic diagrams of a stent structure according to an embodiment of the present application.
According to one embodiment of the present application, as shown in fig. 9A, the tilting of the solar panel 903 by a tilt angle is achieved by providing support for the solar panel 903 by long brackets 901 and short brackets 902. One end of the long and short brackets 901 and 902 is mounted to the supports 9051 and 9052 of the main floating body 904, thereby achieving connection with the main floating body 904. The other ends of the long and short brackets are mounted on the metal frame of the solar panel 903, thereby realizing the connection with the solar panel 903. The heights of the long and short brackets 901 and 902 can be processed according to actual needs, and the main floating body 903 is flat; therefore, the photovoltaic array can realize different angles so as to be suitable for different regions. Moreover, the bracket can be an aluminum alloy member, is corrosion-resistant and has light weight; the main floating body and other floating bodies can be standardized components for mass production, so that the cost is reduced. On the other hand, the standardization of the main floating body also ensures that the angle of the main floating body is not required to be considered during installation, thereby facilitating the installation.
As shown in fig. 9B and 11A, the long bracket 901 includes a bracket main body 9011 and a connector 9012. Both may be formed of parallel sheet metal material, including parallel webs at regular intervals between the sheet metal. In particular, the connecting piece 9012 comprises an upper portion 9013 and a lower portion 9014, and two bottom edges 9015 extending inwardly from the lower portion 9014 on the trapezoidal platform of the main floating body support 9051. The lower portion 9014 of the connector 9012 is form-fitted with the T-shaped ridge of the support 9051 of the main float, while the two bottom edges are adapted to be inserted into the groove between the horizontally extending portion of the T-shaped ridge of the support 9051 of the main float and the trapezoidal platform, in a close fitting relationship, to effect the mounting therebetween. The bracket body 9011 includes an upper portion 9016, a middle portion 9017, and a lower portion 9018. The lower portion 9018 of the bracket body 9011 has a shape to mate with the connector 9012 so that a tight fit therebetween can be achieved. The stand body 9011 has two bottom edges 9019 extending outwardly from the lower portion 9018 on the trapezoidal platform of the main float support 9051. The upper portion 9016 of the bracket body 9011 includes a bracket plate 90161 extending outwardly therefrom at an angle and terminating in a hem. The retainer plate 90161 cooperates with the bead 90162 to compress a portion of the solar panel frame therebetween and secure the solar panel to the long support by way of a through latch.
As shown in fig. 9C, the short stent 902 is similar in structure to the long stent 901, including a stent body 9021 and a connector 9022. The short stent connector 9022 is similar to the long stent connector 9012, but is shorter in height and will not be described again. The short stent body 9021 comprises an upper portion 9023 and a lower portion 9024, but there is no intermediate portion; and, the upper portion 9023 is at an angle to the lower portion 9024. The lower portion 9024 is cooperatively shaped with the attachment 9022 and includes two bottom edges that extend outwardly from the trapezoidal platform of the main float support 9052. For added strength, the lower portion 9024 and the connector 9022 may be fixed in shape by a through latch 9025. The upper portion 9023 of the short shelf includes a pallet 9026 extending therefrom and bent at the edges. The bending platen 9027, which mates with the short shelf, includes a first portion 90271 which mates with the pallet 9026 and also has a bend at the edge; the bending platen 9027 includes a second portion 90272 which mates with one side of the upper portion 9023 of the short shelf and also has a bend at the edge. The first portion 90271 of the bent press plate 9027 and the support plate 9026 can press a portion of the frame of the solar panel therebetween, and the first portion 90272 of the bent press plate 9027 and the upper portion 9023 of the short bracket can be fixed by a through latch, thereby also pressing the frame of the solar panel.
According to one embodiment of the application, the lower part of the long or short bracket body may be arranged to extend both inwardly and to cooperate with the T-shaped ribs on the main float support and to extend outwardly to form a support structure, whereby the connection pieces are omitted, so that the combination of the bracket body and the main float support is tighter.
The outward bending portion of the bracket can be omitted under the condition of the allowed strength, so that the design of the bracket is simpler and lower in cost. According to an embodiment of the present application, referring to fig. 10 and fig. 11C, 11D, 11E and 11F, other portions of the present embodiment are the same as the previous embodiment except for the partial structure of the long and short brackets. The master float 1001 is provided with 4 abutments 1002-1005. Two sets of 4 brackets 1006-1009, each of length, may be mounted on 4 brackets 1002-1005 on the master float 1001 to support the panel 1010. The bent press plates 1010-1014 cooperate with the brackets 1006-1009 to secure the frame 1020 of the panel 1010 to the brackets 1006-1009, thereby achieving the securement of the panel 1010.
Referring to fig. 11C-11F, the long stand 1101 includes an upper portion 1103, a transition portion 1104, a middle portion 1105, and a lower portion 1106. Short leg 1102 includes an upper portion 1107 and a lower portion 1108. The bending press plates 1111 and 1112 are respectively matched with the long and short brackets 1101 and 1102 to fix the battery plate.
The short leg 1102 of this embodiment is very similar to the short leg 902 of the previous embodiment, but the lower portion 1108 is modified to bend inwardly whereby the lower portion 1108 directly mates with the T-shaped ridge of the main float support to effect installation between the leg and the main float, thereby omitting the connector. Similarly, the lower portion 1106 of the long bracket 1101 is also modified to bend inwardly to mate directly with the T-shaped rib of the main float support, omitting the connector.
Another variation of this embodiment is that a transition 1104 is added to the long support 1101. The existence of the transition part can not only increase the strength of the long bracket 1101, so that the transition is more gentle, but also has stronger external force resistance, and can also support the fixing mode of the bending pressing plate, thereby being more beneficial to the implementation of installation.
Fig. 12 is a schematic view of a protective wall according to one embodiment of the application. As shown in fig. 12, protective wall 1200 includes a plurality of columns 1201-1203 and walls 1211 and 1212 mounted between the columns. Further, according to one embodiment of the present application, walkways 1210 and operating platforms 1220 may be provided on a plurality of columns. According to a further embodiment of the application, the protective wall comprises a cable channel and an equipment mounting platform, such as a combiner box. One difficulty with existing photovoltaic arrays on water is how to address the cable channel and header installation and how to set up the service channel and operating platform. In many existing solutions a separate float or assembly has to be provided to solve this problem. The photovoltaic array floating body is beneficial to fixing the photovoltaic array floating body by arranging the guard piles and the platform guard walls erected on the guard piles around the photovoltaic module, solves a series of problems of installing a cable channel and a junction box, providing a maintenance channel and an operation platform and the like, and can achieve multiple purposes.
Specifically, external forces such as wind waves and ships may damage the photovoltaic module. The upright posts can be steel piles or cement piles. The protection wall 1200 mainly prevents the damage to the photovoltaic module caused by these external forces. According to one embodiment of the application, a portion of the wall is positioned underwater to block underwater dark current and protect the photovoltaic module. For example, the ratio of the water portion to the underwater portion of the wall is about 1:4 to about 1:10. The water level may change due to tidal action. The hydrologic condition of the photovoltaic power station water area can influence the proportion of the water part and the underwater part of the wall body. The protection wall can block wind waves, reduce the influence of natural condition change on the photovoltaic array, and improve the adaptability of the photovoltaic power station. Moreover, the protection wall can also block ships, floaters and the like on the water surface, so that the photovoltaic array is further protected.
Further, a plurality of upright posts of the protective wall can be paved with a channel for walking, so that maintenance staff can overhaul the photovoltaic array conveniently. And, below the channel, a cable line can be laid. Thus, the channels on the plurality of posts of the protective wall simultaneously become cable channels. Further, the electrical devices like the junction box can be arranged on the upright post or the channel, and an operator or a maintenance person can directly operate or maintain the electrical devices on the channel or an operation platform arranged on the channel. Thus, the channels on the plurality of uprights may also be the mounting and operating platform for the apparatus. Therefore, the protection wall disclosed by the application skillfully solves a series of problems in the photovoltaic array, embodies the principle of making full use of things, reduces the construction cost of the photovoltaic power station, and is beneficial to rapid construction.
Fig. 13 is an exploded view of a structure of a protective wall according to an embodiment of the present application. As shown in fig. 13, protective wall 1300 includes columns 1301 and 1302, each of which includes a first set of anchors 1304 and 1305, wall 1303 being mounted to column 1301 by first set of anchors 1304 and 1305. Specifically, the first set of anchor ear 1304 and 1305 is provided with a through hole, and the wall 1303 is correspondingly provided with a through hole, and the bolt lock structure utilizes the through holes of the first set of anchor ear 1304 and 1305 and the wall 1303 to realize the simple installation of the wall. Columns 1301 and 1302, according to one embodiment of the present application, each include a first set of staples 1321 and 1322 having through holes disposed therein. Each upright of the protection wall 1300 further comprises vertical angle steel, transverse angle steel and diagonal angle steel. Through holes are formed in vertical angles 1313 and 1314 and 1315 and 1316 of columns 1301 and 1302, respectively, and are mounted to columns 1301 and 1302, respectively, by a second set of anchor clamps. The transverse angle bars 1311 and 1312 are mounted to the vertical angle bars 1313 and 1314 and 1315 and 1316, respectively. While diagonal angles 1317 and 1318 and 1319 and 1320 are installed between lateral angle 1311 and vertical angle 1313 and 1314 and lateral angle 1312 and vertical angle 1315 and 1316, respectively, to form a stable support structure. On these support structures, the channels of the photovoltaic array can be laid. Those skilled in the art will appreciate that the angle steel may be replaced with other materials; the hoop angle steel combination mode can be conveniently replaced by other modes, and the hoop angle steel combination mode is also within the scope of the application.
According to one embodiment of the present application, the protective wall of the present application may also function to secure the photovoltaic array, thereby making the protective wall of the present application an important function.
According to one embodiment of the application, the photovoltaic module is connected with the upright post of the protection wall through a rope so as to further play a role in stabilizing the photovoltaic module. Fig. 14 is a schematic view of an anchoring structure of a photovoltaic array according to one embodiment of the present application. Fig. 15 is a schematic view of a pull member mated with a floating body in accordance with one embodiment of the present application. FIG. 16 is a schematic view of a pull and float installation according to one embodiment of the present application.
As shown, the anchor structure 1400 includes pulls 1401-1404 mounted in a photovoltaic array. The pull-out element is preferably mounted in the region enclosed by the main and transverse floats. Pull members 1401-1404 are connected to posts 1409 and 1410 by cords 1405-1408. As shown, the rope is still secured by the anchor ear. Only the main and lateral floats around the pulls 1403 and 1404 are shown in fig. 14, the main and lateral floats around the other pulls and in the photovoltaic module. Preferably, a plurality of pulls are mounted in each photovoltaic module, each post also being connected to the plurality of pulls.
As shown in fig. 15 and 16, the pull member 1501 includes a central throughbore 1506 and four edge throughbores 1502-1505. The central opening 1506 is used to connect with a tether via tether anchor pins, while the edge openings 1502-1505 may connect with the pull tabs of the main and lateral floats to form a stable structure.
Referring to fig. 14-16, the photovoltaic array of the present application can be secured to a protective wall by rope tensioning. This will have a very positive effect on maintaining the stability of the photovoltaic module. In addition, a plurality of positions are naturally reserved between the main floating body and the transverse floating body for the pull piece connected with the rope in the photovoltaic module, so that the rope can be arranged at each position in the photovoltaic module according to actual needs, and the dispersion of the pulling force is realized; while the main and lateral floats themselves do not require any modification to introduce an anchoring system as in fig. 14-16. Therefore, the setting of the anchoring system can be very flexible and convenient, thereby meeting the actual requirements of the photovoltaic array. Furthermore, the pull piece distributes the pulling force to the 4 main floating bodies or the transverse floating bodies around the pull piece, so that the connection is firm, and the damage to the floating bodies is avoided.
According to one embodiment of the application, the ropes of the anchoring system may be connected to the underwater anchors in the photovoltaic module, in addition to the protective walls around the photovoltaic module. In particular, the anchor body may be a pile body, a concrete member, or even a natural object disposed under water. The anchor body is provided with a mechanism which can be connected with the rope, and the floating body of the photovoltaic array is tensioned (for example, by a similar pulling piece), so that the photovoltaic array is firmer.
The above embodiments are provided for illustrating the present application and not for limiting the present application, and various changes and modifications may be made by one skilled in the relevant art without departing from the scope of the present application, therefore, all equivalent technical solutions shall fall within the scope of the present disclosure.
Claims (15)
1. A photovoltaic array, comprising:
a plurality of photovoltaic modules, each photovoltaic module comprising:
a boundary comprising a first plurality of transverse floating bodies and a plurality of longitudinal floating bodies,
a second plurality of lateral floats within the boundary; and
a plurality of primary floats within the boundary, each primary float including a solar panel thereon, wherein the plurality of primary floats are connected between the second plurality of lateral floats or the first plurality of lateral floats and the second plurality of lateral floats;
a plurality of inter-lateral floats located on the boundary and a plurality of inter-lateral floats located within the boundary; and
a protective wall surrounding the plurality of photovoltaic modules;
wherein the plurality of longitudinal floats are located on the boundary and connected between 2 first plurality of transverse floats or 2 first plurality of transverse floats and 2 second plurality of transverse floats; the plurality of inter-transverse floating bodies are connected between 2 first plurality of transverse floating bodies or between 2 second plurality of transverse floating bodies and 2 main floating bodies;
wherein the protective wall comprises a plurality of posts and a wall body between the plurality of posts, wherein at least a portion of the wall body is positioned under water; the area surrounded by the main floating body and the transverse floating body in the photovoltaic array is provided with a pulling piece, and the pulling piece is connected to an upright post of the protection wall or an underwater anchor body in the photovoltaic module through a rope.
2. The photovoltaic array of claim 1, wherein the primary float comprises a plurality of standoffs connected to the solar panel by a first standoff or a second standoff, wherein the first standoff is higher in height than the second standoff.
3. The photovoltaic array of claim 1, wherein the main floating body is connected to the lateral floating body and/or the lateral floating body is connected to the longitudinal floating body by a plurality of sets of pull tabs, each set of pull tabs comprising more than 2 pull tabs.
4. A photovoltaic array according to claim 3, wherein the pull lugs are disposed within the grooves of the main or lateral or longitudinal floats.
5. The photovoltaic array of claim 1, wherein the upper surface and the lower surface of the main or lateral or longitudinal or inter-lateral floats are of a different pattern.
6. The photovoltaic array of claim 1, wherein the standoffs comprise a platform having a trapezoidal cross-section and a "T" bar on the platform.
7. The photovoltaic array of claim 6, wherein the first or second brackets comprise bracket bodies and connectors, lower portions of the connectors extending inwardly on the support platform and engaging "T" bars on the support platform, upper portions of the connectors being connected to the bracket bodies, lower portions of the bracket bodies extending outwardly on the support platform.
8. The photovoltaic array of claim 6, wherein the first or second brackets comprise bracket bodies, a lower portion of the bracket bodies extending inwardly on the support platform to mate with a "T" shaped bar on the support platform; or the lower portion of the stand body extends inwardly and outwardly over the stand platform.
9. The photovoltaic array of claim 6, wherein the first bracket comprises a transition portion between the upper portion and the lower portion.
10. The photovoltaic array of claim 6, wherein the upper portion of the first or second bracket comprises a pallet that cooperates with the bending platen to secure the solar panel; the bending press plate comprises a first part matched with the supporting plate and a second part matched with the upper part of the first bracket or the second bracket, wherein the second part of the bending press plate is detachably fixed with the upper part of the long bracket or the short bracket.
11. The photovoltaic array of claim 10, wherein an edge of the carrier is bent and an edge of the first portion of the bending platen is correspondingly bent.
12. The photovoltaic array of claim 10, wherein the second portion of the bending platen is bent inward.
13. The photovoltaic array of claim 10, wherein the protective wall forms a walkway and/or a cable access and/or a mounting platform and/or an operating platform.
14. The photovoltaic array of claim 1, wherein the cord includes a spring thereon such that the cord is in tension.
15. A water borne photovoltaic power station comprising a photovoltaic array as claimed in any one of claims 1 to 14.
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| CN201610300507.8A CN107453689B (en) | 2016-05-10 | 2016-05-10 | Modular floating type photovoltaic array |
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| CN108706080A (en) * | 2018-04-04 | 2018-10-26 | 宿州诺亚坚舟光伏科技有限公司 | A kind of float type water upper float |
| TWI745151B (en) * | 2020-11-02 | 2021-11-01 | 林宏逸 | Solar panel installation and construction platform construction method |
| CN115195036A (en) * | 2022-06-01 | 2022-10-18 | 诺斯曼能源科技(北京)股份有限公司 | Floating body manufacturing method for preventing floating body pull lug from generating cavity in injection molding process |
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