CN222763803U - A large-span, two-end inclined flexible photovoltaic support - Google Patents
A large-span, two-end inclined flexible photovoltaic support Download PDFInfo
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- CN222763803U CN222763803U CN202422021833.8U CN202422021833U CN222763803U CN 222763803 U CN222763803 U CN 222763803U CN 202422021833 U CN202422021833 U CN 202422021833U CN 222763803 U CN222763803 U CN 222763803U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model relates to a large-span two-end cable-stayed flexible photovoltaic bracket which comprises two upright post assemblies, at least two assembly cables, an upper wind-resistant cable, a lower wind-resistant cable and a lower wind-resistant cable, wherein the at least two assembly cables are parallelly fixed between the two upright post assemblies and used for installing a photovoltaic assembly, the upper wind-resistant cable is fixed on each upright post assembly, one end of each upper wind-resistant cable is connected with the top of the upright post assembly, the other end of each upper wind-resistant cable is connected with the assembly cable, the lower wind-resistant cable is fixed on each upright post assembly, one end of each lower wind-resistant cable is connected with the assembly cable, and the other end of each lower wind-resistant cable is connected with the bottom of the upright post assembly. According to the utility model, by arranging the upper wind-resistant cable and the lower wind-resistant cable, downward deformation caused by the dead weight of the photovoltaic module and wind pressure and upward deformation caused by wind suction can be resisted, the bearing capacity and stability of the structure are maintained, the spanning capacity and scene adaptation capacity of the structure are enhanced, and the construction cost is reduced.
Description
Technical Field
The utility model relates to the technical field of photovoltaic power stations, in particular to a large-span two-end inclined-pulling flexible photovoltaic bracket.
Background
Due to the scarcity of land resources, photovoltaic power plants are gradually built on complex terrains such as mountainous areas, and even in some areas, fishery and agriculture are also required to be combined with photovoltaic power generation. The traditional single-layer suspension cable flexible photovoltaic support structure has the problems of limited crossing capacity, large cable force and the like, and the support structure form cannot be suitable for large-span scenes such as fish ponds with deep water level and large span, beach farmlands with poor geological conditions, mountain lands and the like. Therefore, in order to adapt to the large-span requirements of different scenes, the application prospect of the flexible photovoltaic support structure is expanded, and a large-span structural form capable of crossing different scenes is designed to be the key point of the flexible photovoltaic support structure.
The flexible photovoltaic support structure is sensitive to wind load, and particularly in areas with strong wind and high wind, the wind suction effect born by the flexible photovoltaic support structure is often stronger than the wind pressure effect. Although the traditional single-layer suspension cable flexible photovoltaic support structure can bear strong wind load applied to a photovoltaic module, the span-spanning capability of the traditional single-layer suspension cable flexible photovoltaic support structure is limited, and a large span cannot be realized. Beyond a certain span, the requirements on the suspension cable specification are generally high. Although the flexible photovoltaic support structure of the conventional three-cable truss structure can realize a large span, the bearing cable is weak in resistance to wind suction load acting on the surface of the assembly in the vertical direction, and the structure generates larger vertical upward displacement so as to damage the photovoltaic assembly. And the three-cable structure generally needs to arrange a large number of support rods, and the construction is complicated. Therefore, how to realize a large span and limit the deformation of the flexible photovoltaic support structure under the action of wind pressure and wind suction becomes an important point of research.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model aims to provide the large-span two-end inclined-pulling flexible photovoltaic bracket.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a large-span two-end diagonal flexible photovoltaic bracket, the photovoltaic bracket comprising:
Two upright post assemblies;
at least two assembly ropes, which are fixed in parallel between the two upright post assemblies and are used for installing the photovoltaic assembly;
The upper wind-resistant cables are fixed on each upright post assembly, one end of each upper wind-resistant cable is connected with the top of each upright post assembly, and the other end of each upper wind-resistant cable is connected with each assembly cable;
And the lower wind-resistant cables are fixed on each upright post assembly, one end of each lower wind-resistant cable is connected with the assembly cable, and the other end of each lower wind-resistant cable is connected with the bottom of the upright post assembly.
Preferably, the bracket further comprises a cross bar member for connecting the respective assembly cables.
According to the utility model, the upright post assembly comprises two upright posts which are arranged in parallel and a cross beam which is arranged between the two upright posts, and the end part of the assembly cable is fixed on the cross beam.
According to the utility model, the distance between the top end of the upright post assembly and the cross beam is 1/3-1/2 of the height of the upright post assembly. The horizontal distance between the position where the upper wind-resistant cable is connected with the assembly cable and the upright post assembly and the horizontal distance between the position where the lower wind-resistant cable is connected with the assembly cable and the upright post assembly are both 1/2-3/2 of the height of the upright post assembly.
The vertical upward load borne by the flexible photovoltaic support structure is the most unfavorable load, and the requirement of the wind pressure deformation limit value is met when the distance between the top end of the upright post assembly and the cross beam is 1/3-1/2 of the height of the upright post assembly. The horizontal distance between the connecting position of the wind resistance cable and the assembly cable and the upright post assembly is 1/2-3/2 of the height of the upright post assembly, and the wind resistance cable is best in resisting the least adverse vertical upward wind load.
According to the utility model, the upright post assembly is provided with a stay cable.
According to the utility model, the stay cables are respectively arranged at corresponding connection positions of the assembly cable and the upper and lower wind-resistant cables, and the connection positions can design the nodes as an independent whole for cooperative work when being connected. The cable of the utility model can be connected to the upright post, or can be made into an independent node to be connected with different cables. The lower wind resistance cable can be connected to the column bottom or the upper surface of the column according to the actual wind power level.
According to the utility model, the assembly cable, the upper wind-resistant cable, the lower wind-resistant cable and the stay cable are all hot dip galvanized steel stranded wires.
According to the utility model, the diameters of the assembly cable, the upper wind-resistant cable, the lower wind-resistant cable and the stay cable are all in the range of 12-25 mm.
According to a preferred embodiment of the utility model, a transverse support is provided between the upright and the cross beam.
(1) According to the utility model, the upper wind resistance cable and the lower wind resistance cable are arranged on the upright post assemblies at the two sides, so that the downward deformation caused by the dead weight and wind pressure of the photovoltaic assembly of the flexible photovoltaic bracket structure and the upward deformation caused by wind suction can be resisted. And simultaneously reduces wind load effect, thereby maintaining the bearing capacity and stability of the structure. The arrangement of the wind-resistant cable improves the integral rigidity of the structure, and the wind-resistant cable and the assembly cable work cooperatively to form a space cable net, so that the wind resistance of the structure is greatly improved.
(2) The utility model achieves different controllable wind load effects by adjusting the vertical distance between the upper wind resistance cable and the lower wind resistance cable and the horizontal connection distance between the upper wind resistance cable and the assembly cable. The two upright posts are arranged, so that the inclination angle of the assembly cable is adjustable.
(3) Compared with the traditional single-layer suspension cable flexible photovoltaic bracket structure, the utility model can improve the field crossing capacity, effectively slow down the phenomenon of span increase and cable force surge, and realize adjustable cable force of different spans. Compared with the conventional cable truss flexible photovoltaic support structure, the cable truss flexible photovoltaic support structure has the advantages that the construction difficulty and complexity of the cable truss are reduced due to the arrangement of the upper wind resistance cable and the lower wind resistance cable while the same performance is maintained, and the operability is high.
(4) The large-span two-end diagonal flexible photovoltaic bracket can reduce the two-side diagonal flexibility of wind pressure and wind suction effect. The flexible photovoltaic bracket provided by the utility model can be widely applied to complex terrain conditions, and can be used for reservoirs, fishponds, ditches, rivers and other areas where intermediate support cannot be provided for the structure and the fixed bracket supported by the traditional steel cross beam is difficult to use. Particularly, the construction process above mountain scenes with different river and fluctuation is reduced, and the photovoltaic design and construction difficulty is reduced. The purpose of economy is satisfied, and the safety of photovoltaic module and structure is ensured.
Drawings
FIG. 1 is a schematic structural view of a large-span two-end diagonal flexible photovoltaic bracket in the utility model;
Fig. 2 is a schematic side division diagram of a large-span two-end diagonal flexible photovoltaic bracket in the utility model.
Wherein:
1. The solar photovoltaic power generation assembly comprises a solar photovoltaic power generation assembly body, wherein the solar photovoltaic power generation assembly body comprises a solar photovoltaic power generation assembly body, an assembly cable, an upper wind-resistant cable, a lower wind-resistant cable, a transverse strut member, a transverse beam, a vertical column assembly body, a transverse support body and a stay cable.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
The large-span two-end diagonal flexible photovoltaic bracket is shown in fig. 1-2, and is used for installing a photovoltaic module 1. The photovoltaic bracket comprises two upright post assemblies 7, at least two assembly ropes 2 arranged between the middle sections of the two upright post assemblies 7, a cross brace rod piece 5 used for connecting each assembly rope 2, an upper wind-resistant rope 3 connected between the top of each upright post assembly 7 and each assembly rope 2, and a lower wind-resistant rope 4 connected between the bottom of each upright post assembly 7 and each assembly rope 2. The assembly cable 2 is a direct bearing member of the solar photovoltaic power generation assembly, and a plurality of solar photovoltaic power generation assemblies 1 are arranged above the assembly cable.
As shown in fig. 1 and 2, both the upper and lower anti-wind cables 3, 4 are located between the two stud assemblies. The upper wind resistance cable 3 and the lower wind resistance cable 4 can resist downward deformation caused by the least adverse wind pressure and upward deformation caused by the least adverse wind suction of the flexible photovoltaic bracket structure, and are used for controlling wind load effect. The upper wind-resistant cable 3, the lower wind-resistant cable 4, the assembly cable 2 and the cross brace member 5 are fixedly connected through cable clamp nodes.
As shown in fig. 2, the column assembly 7 comprises two columns and a cross beam 6 arranged between the two columns and a transverse support 8. A cross beam 6 is connected between the two upright posts, two ends of the cross beam 6 are fixedly connected with the upright posts 7, and two ends of the cross beam 6 are respectively connected with the end parts of one assembly cable 2. The two upright posts 7, the cross beams 6 and the transverse supports 8 form a stable structure, the torsion of the photovoltaic module is limited, and the stability of the end supporting members at the two sides is enhanced. And the inclination angle of Fang Dashe photovoltaic modules on the module cable 2 can be conveniently adjusted by the two upright posts, and the module cable 2 is realized by only replacing the end part of the module cable 2. When the area is in a strong wind condition, the flexible photovoltaic bracket can be designed to be free of inclination angles of the assembly cable 2, namely, the solar photovoltaic power generation assembly 1 is free of inclination angles.
As shown in fig. 1 and 2, the top and bottom of the two-sided upright post assemblies 7 are respectively connected with an upper wind-resistant cable 3 and a lower wind-resistant cable 4. The upper wind-resistant cable 3 is connected with the top of the upright post assembly 7, the distance between the top end of the upright post assembly 7 and the cross beam 6 is 1/3-1/2 of the height of the upright post assembly 7, and the lower wind-resistant cable 4 is connected with the bottom of the upright post assembly 7 or 1/3-1/2 of the distance between the top end of the upright post assembly 7 and the bottom of the upright post assembly 7. The device is used for controlling load deformation for resisting wind pressure and wind suction action under different wind power grades respectively and bearing corresponding vertical component force action. The horizontal distance between the positions where the upper wind-resistant cable 3 and the lower wind-resistant cable 4 are connected with the assembly cable 2 and the upright post assembly 7 is 1/2-3/2 of the height of the upright post assembly 7. By adjusting the included angle between the wind-resistant cable and the assembly cable 2 to bear the action of horizontal component forces under different wind power levels, the cable force and cable section of the stay cable 9 and the assembly cable 2 are reduced. One end of the upper wind-resistant cable 3 and one end of the lower wind-resistant cable 4 are connected with the upright post component 7, and the other end of the upper wind-resistant cable is connected with the component cable 2 and the cross brace member 5, so that the upper wind-resistant cable 3, the lower wind-resistant cable 4, the component cable 2 and the cross brace member 5 act together to bear wind load transmitted by the solar photovoltaic power generation component 1. The strut members 5 are set up to enhance the connectivity of the site node while avoiding twisting of the photovoltaic structure.
When bearing the vertical downward load, the assembly cable 2 transmits the load to the upper wind-resistant cable 3, the cross beam 6 and the upright post assemblies 7, and when bearing the upward wind-absorbing load, the assembly cable 2 transmits the load to the lower wind-resistant cable 4 and the upright post assemblies 7 at both sides. The arrangement of the upper and lower wind-resistant ropes plays a role in reverse tension, so that the rope force of the assembly rope and the stay rope is reduced.
The two side upright post assemblies 7 are connected with one end of the lower anti-wind cable 4, the other end of the lower anti-wind cable 4 is connected to the connecting joint of the assembly cable 2 and the cross brace member 5, the lower anti-wind cable 4 is used as a member of the whole structure, which resists wind load and has the least adverse effect, and the wind absorbing effect of the structure can be effectively reduced by adjusting the prestress of the lower anti-wind cable 4 and the connecting position of the lower anti-wind cable 4 and the assembly cable 2. The upper wind-resistant cable 3 and the lower wind-resistant cable 4 can be installed and tensioned together with the assembly cable 2 after the construction of the main body structure is completed and the assembly is installed, so that the upper wind-resistant cable 3 and the lower wind-resistant cable 4 are ensured to be in a tensioned state under the condition of dead weight.
As shown in fig. 2, the upright assembly 7 is provided with a plurality of stay cables 9, and the stay cables 9 are used for balancing the horizontal force transmitted by the assembly cable 2. The stay cables 9 are arranged on two opposite sides of the upright post assembly 7, the included angle range between the stay cables and the ground is 30-60 degrees, and the length of each stay cable 9 is determined according to the height of the upright post assembly 7. The stay cable is fixed on the anchor pile, the smaller the included angle between the stay cable 9 and the ground is, the smaller the cable force of the stay cable is, and the stay cable is required to be combined with the boundary of the field. The column feet of the column are just connected, and the arrangement of the wind resistance cable reduces the column bottom bending moment. According to the utility model, the diameters of the assembly cable 2, the upper wind-resistant cable 3, the lower wind-resistant cable 4 and the stay cable 9 are all 12-25 mm, the material is hot dip galvanized steel strand, and the strength grade is 1770MPa, 1860MPa or 1960MPa.
The length of the assembly cable 2 is determined according to the span of the flexible photovoltaic bracket structure, and the lengths of the upper wind resistance cable 3 and the lower wind resistance cable 4 are calculated according to the wind pressure, the site arrangement, the span, the earthquake, the geology and other parameters of a specific use area.
The connection heights of the upper wind resistance cable 3 and the lower wind resistance cable 4 of the flexible photovoltaic support and the top and bottom of the upright post assembly 7, and the horizontal distance between the connection positions of the upper wind resistance cable 3 and the lower wind resistance cable 4 and the assembly cable 2 and the upright post assembly 7 are also related to the height of the upright post assembly 7, and the connection heights can be correspondingly adjusted according to the land use function without influencing the land use function.
The flexible support structure provided by the embodiment has good bearing capacity and spanning capacity, can reach 10-50 meters along a single span of the assembly cable 2, and has strong wind bearing capacity. The single span L of the flexible photovoltaic bracket is determined according to a load deformation condition, the vertical displacement meets L/50, and the prestress state meets L/150. In summary, the upper wind-resistant cable and the lower wind-resistant cable are additionally arranged on two sides of the large-span assembly cable, and under the action of wind pressure, the assembly cable supporting the photovoltaic assembly is pulled obliquely upwards through the wind-resistant cable, so that the assembly cable generates upward component force, and the sinking deformation trend of the structure caused by dead weight and wind pressure is resisted. Under the action of wind suction, the component cable is pulled obliquely downwards through the upper wind-resistant cable and the lower wind-resistant cable, so that vertical upward deformation caused by wind suction is reduced, the wind suction effect is weakened, the angle and the stability of the photovoltaic component are maintained, and the safety of the structure is ensured. Due to the design of the upper wind-resistant cable and the lower wind-resistant cable, the horizontal force of the inhaul cable of the traditional single-layer suspension cable flexible photovoltaic bracket is reduced, and the field adaptability of the structure is enhanced, especially in mountain areas and fish ponds. The utility model improves the spanning capability of the photovoltaic bracket structure, reduces the engineering cost, and has simple construction compared with the structure of the three-cable bracing rod.
The installation method of the utility model comprises the following steps:
(1) Piling is carried out on two sides of a complex scene crossing over terrains such as ponds, and a plurality of anchoring piles are included.
(2) A column assembly 7, a cross beam 6 and a transverse support 8 are mounted.
(3) A number of assembly lines 2 are laid.
(4) A plurality of cross-strut members 5 are laid.
(5) An upper anti-wind cable 3 and a lower anti-wind cable 4 are installed.
(6) Stay cables 9 are installed, and the stay cables at each connecting position are used for respectively carrying out Zhang Lashang on the wind-resistant cable 3, the lower wind-resistant cable 4 and the assembly cable 2.
(7) And installing the solar photovoltaic power generation assembly 1.
(8) And respectively secondarily stretching the upper wind-resistant cable 3, the lower wind-resistant cable 4 and the assembly cable 2 to a specified stretching prestress value.
(9) And (5) checking the fastening condition of each fastener, and finishing the installation.
In summary, compared with the single-layer suspension cable flexible photovoltaic support structure, the utility model adds the upper wind-resistant cable and the lower wind-resistant cable on two sides, thereby effectively reducing the economic cost and enhancing the wind load resistance effect. Compared with the cable truss flexible photovoltaic support structure, the construction complexity is reduced, and the construction efficiency is improved.
The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422021833.8U CN222763803U (en) | 2024-08-20 | 2024-08-20 | A large-span, two-end inclined flexible photovoltaic support |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202422021833.8U CN222763803U (en) | 2024-08-20 | 2024-08-20 | A large-span, two-end inclined flexible photovoltaic support |
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| CN222763803U true CN222763803U (en) | 2025-04-15 |
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| CN202422021833.8U Active CN222763803U (en) | 2024-08-20 | 2024-08-20 | A large-span, two-end inclined flexible photovoltaic support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120934424A (en) * | 2025-09-24 | 2025-11-11 | 苏州聚晟太阳能科技股份有限公司 | Long-span photovoltaic flexible support |
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- 2024-08-20 CN CN202422021833.8U patent/CN222763803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120934424A (en) * | 2025-09-24 | 2025-11-11 | 苏州聚晟太阳能科技股份有限公司 | Long-span photovoltaic flexible support |
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