CN116599428A - Photovoltaic cable structure self-adaptive tensioning device and photovoltaic flexible supporting system - Google Patents
Photovoltaic cable structure self-adaptive tensioning device and photovoltaic flexible supporting system Download PDFInfo
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- CN116599428A CN116599428A CN202310653546.6A CN202310653546A CN116599428A CN 116599428 A CN116599428 A CN 116599428A CN 202310653546 A CN202310653546 A CN 202310653546A CN 116599428 A CN116599428 A CN 116599428A
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- photovoltaic
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- tensioning device
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- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000003044 adaptive effect Effects 0.000 claims description 7
- 230000005484 gravity Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- H02S20/10—Supporting structures directly fixed to the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/50—Arrangement of stationary mountings or supports for solar heat collector modules comprising elongate non-rigid elements, e.g. straps, wires or ropes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/70—Arrangement of stationary mountings or supports for solar heat collector modules with means for adjusting the final position or orientation of supporting elements in relation to each other or to a mounting surface; with means for compensating mounting tolerances
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- 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)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
Abstract
The application discloses a photovoltaic cable structure self-adaptive tensioning device and a photovoltaic flexible supporting system, wherein the photovoltaic cable structure self-adaptive tensioning device comprises an end upright post, a counterweight module, a pulley block and a cable-stayed foundation, the end upright post is arranged at the bottom of the end upright post, the counterweight module is connected with the end upright post, the pulley block is connected with the end upright post through a pulley clamp, the pulley block is connected with the counterweight module through a transmission cable, the pulley block is connected with a photovoltaic assembly through an assembly cable, the cable-stayed foundation is connected with the top of the end upright post, and the cable-stayed foundation is far away from the photovoltaic assembly. The photovoltaic cable structure self-adaptive tensioning device and the photovoltaic flexible supporting system provided by the application have the advantages of low equipment cost, high reliability and self-adaptive compensation of prestress.
Description
Technical Field
The application relates to the technical field of photovoltaic supports, in particular to a photovoltaic cable structure self-adaptive tensioning device and a photovoltaic flexible support system.
Background
The photovoltaic flexible support has the advantages of large span, high clearance, high land utilization rate, ecological friendliness and the like, and mainly comprises a single-layer suspension cable structure, a double-layer cable truss structure, a fish-bellied cable truss structure, a string-stretching structure and the like. The prestress in the steel strand is usually applied by using a tensioning device such as a jack and is anchored to the photovoltaic support structure by an anchor, and the manner of applying the prestress has the following disadvantages: the flexible cable structure is greatly influenced by temperature, and the prestress loss of the steel strand can be caused by the expansion and contraction effect when the temperature is increased in the conventional tensioning and anchoring mode, so that the integral rigidity of the structure is reduced, and the safety risk is increased; in the related art, the clamping piece anchor is widely applied due to better economical efficiency, but the clamping piece anchor may have a slipping phenomenon when the prestress is insufficient, and the reliability is obviously reduced.
Disclosure of Invention
The present application aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the application provides the self-adaptive tensioning device for the photovoltaic cable structure, which has the advantages of low equipment cost, high reliability and self-adaptive compensation of prestress.
According to the self-adaptive tensioning device for the photovoltaic cable structure, which is disclosed by the embodiment of the application, the self-adaptive tensioning device for the photovoltaic cable structure comprises an end upright post, a counterweight module, a pulley block and a cable-stayed foundation, wherein the end upright post is arranged at the bottom of the end upright post, the counterweight module is connected with the end upright post, the pulley block is connected with the end upright post through a pulley clamp, the pulley block is connected with the counterweight module through a transmission cable, the pulley block is connected with a photovoltaic assembly through an assembly cable, the cable-stayed foundation is connected with the top of the end upright post, and the cable-stayed foundation is far away from the photovoltaic assembly.
The self-adaptive tensioning device for the photovoltaic cable structure has the advantages of low equipment cost, high reliability and self-adaptive compensation of prestress.
In some embodiments, the pulley block comprises a movable pulley, a first fixed pulley and a second fixed pulley, the movable pulley is connected with a movable pulley clamp, the first fixed pulley and the second fixed pulley are connected with a fixed pulley clamp, and the fixed pulley clamp is connected with the top of the end upright.
In some embodiments, the first end of the assembly cable is connected to the photovoltaic assembly, the second end of the assembly cable is connected to the movable pulley clamp, the first end of the driving cable is connected to the movable pulley clamp, and the second end of the driving cable sequentially bypasses the second fixed pulley, the movable pulley and the first fixed pulley and then is connected to the counterweight module.
In some embodiments, the counterweight module is connected to the end column foundation by a safety line.
In some embodiments, the cable-stayed foundation is connected to the top of the end post by a diagonal draw bar.
In some embodiments, there are two end posts, and the pulley blocks are in one-to-one correspondence with the end posts.
In some embodiments, an end rail is disposed between the two end posts, and two ends of the end rail are respectively connected to the tops of the two end posts.
In some embodiments, the end posts further comprise end diagonal braces, one end of the end diagonal brace being connected to the top of the end post and the other end being connected to the bottom of an adjacent end post.
In some embodiments, the photovoltaic module has a center post disposed at an end thereof remote from the end post, the end of the module cable passing through the top of the center post, the bottom of the center post having a center post foundation.
According to the photovoltaic flexible support system provided by the embodiment of the application, the photovoltaic flexible support system comprises a photovoltaic bracket and a tensioning device.
Drawings
Fig. 1 is a front view of a photovoltaic cable structure adaptive tensioning device in accordance with an embodiment of the present application.
Fig. 2 is a schematic structural view of a photovoltaic cable structure adaptive tensioning device according to an embodiment of the application.
Reference numerals: 1. a photovoltaic module; 2. an assembly cable; 3. a movable pulley; 4. a movable pulley clamp; 5. a first fixed pulley; 6. a second fixed pulley; 7. a fixed pulley clamp; 8. a driving cable; 9. a counterweight module; 10. a safety line; 11. an end column; 12. an end rail; 13. end diagonal bracing; 14. an end post foundation; 15. a diagonal draw bar; 16. a cable-stayed foundation; 17. a middle column; 18. a center pillar foundation.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
According to the self-adaptive tensioning device for the photovoltaic cable structure, as shown in fig. 1 and 2, the self-adaptive tensioning device for the photovoltaic cable structure comprises an end upright 11, a counterweight module 9, a pulley block and a cable-stayed foundation 16, wherein the end upright foundation 14 is arranged at the bottom of the end upright 11, the counterweight module 9 is connected with the end upright foundation 14, the pulley block is connected with the end upright 11 through a pulley clamp, the pulley block is connected with the counterweight module 9 through a transmission cable 8, the pulley block is connected with a photovoltaic module 1 through a module cable 2, the cable-stayed foundation 16 is connected with the top of the end upright 11, and the cable-stayed foundation 16 is far away from the photovoltaic module 1. The gravity of the counterweight module 9 applies prestress to the assembly cable 2 through the pulley block, when the temperature rises, the assembly cable 2 stretches, the counterweight module 9 drives the pulley block and the driving cable 8 to adjust under the action of gravity, so that the deflection and the prestress of the assembly cable 2 are inconvenient, the prestress loss caused by the temperature rise is compensated, and the influence of the assembly cable 2 on the photovoltaic assembly 1 can be avoided. The assembly cable 2 is a steel strand.
The self-adaptive tensioning device for the photovoltaic cable structure has the advantages of low equipment cost, high reliability and self-adaptive compensation of prestress. The application can realize the prestress application of the assembly cable 2 without using tensioning equipment, can adaptively compensate the prestress loss caused by temperature rise, and has strong flexibility and reliability and convenient construction.
In some embodiments, the pulley block comprises a movable pulley 3, a first fixed pulley 5 and a second fixed pulley 6, the movable pulley 3 is connected with the movable pulley clamp 4, the first fixed pulley 5 and the second fixed pulley 6 are connected with the fixed pulley clamp 7, and the fixed pulley clamp 7 is connected with the top of the end upright 11.
Specifically, the movable pulley 3 of the pulley block is connected with the movable pulley clamp 4 through bolts, the first fixed pulley 5 and the second fixed pulley 6 are connected with the fixed pulley clamp 7 through bolts, the fixed pulley clamp 7 is welded and fixed at the top of the end upright post 11, and the pulley block converts the gravity of the counterweight module 9 into prestress of the assembly cable 2 according to a certain transmission ratio through the cooperation of the fixed pulley and the movable pulley 3.
In some embodiments, the first end of the assembly cable 2 is connected to the photovoltaic assembly 1, the second end of the assembly cable 2 is connected to the movable pulley holder 4, the first end of the driving cable 8 is connected to the movable pulley holder 4, and the second end of the driving cable 8 is connected to the counterweight module 9 after sequentially bypassing the second fixed pulley 6, the movable pulley 3, and the first fixed pulley 5.
Specifically, the transmission ratio of 3:1 is obtained after the transmission rope 8 sequentially passes around the fixed pulley and the movable pulley 3, and the prestress in the assembly rope 2 is three times of the gravity of the counterweight module 9 under the action of the pulley block. Different transmission ratios can be realized by changing the number of the movable pulleys 3 and the fixed pulleys and the winding mode of the transmission rope 8, and the weight of the counterweight module 9 is reduced.
In some embodiments, the counterweight module 9 is connected to the end post foundation 14 by a safety line 10.
Specifically, the counterweight module 9 and the end column foundation 14 are connected to the both ends of the safety rope 10, and the safety rope 10 can restrict the deformation of the assembly rope 2 of the photovoltaic assembly 1 under the wind and snow load. The strength of the safety line 10 meets the requirement for stable operation under extreme load conditions.
In some embodiments, the cable-stayed foundation 16 is connected to the top of the end post 11 by a diagonal brace 15.
Specifically, the cable-stayed foundation 16 is connected with the top of the end upright post 11 through the diagonal draw bar 15 to transfer the prestress of the assembly cable 2 into the foundation, so that the horizontal force and the column bottom bending moment borne by the end upright post 11 can be reduced, and the stress balance of the end upright post 11 is realized.
In some embodiments, there are two end posts 11, and the pulley blocks are in one-to-one correspondence with the end posts 11.
Specifically, two end upright posts 11 are respectively connected with one side of the photovoltaic module 1 through assembly ropes 2, balance of the photovoltaic module 1 is maintained, the number of pulley blocks is equal to that of the end upright posts 11, and the assembly ropes 2 are connected with the end upright posts 11 through the pulley blocks.
In some embodiments, an end rail 12 is disposed between the two end posts 11, and two ends of the end rail 12 are respectively connected to the top of the two end posts 11.
Specifically, the end rail 12 connects the tops of the two end posts 11 to enhance the stability of the end posts 11. The top of two end posts 11 is avoided rocking to produce the influence to subassembly rope 2 and photovoltaic module 1.
In some embodiments, the end posts 11 further comprise end diagonal braces 13, one end of an end diagonal brace 13 being connected to the top of an end post 11 and the other end being connected to the bottom of an adjacent end post 11.
Specifically, the top of the end upright 11 is connected with the bottom of the other end upright 11 by the end diagonal brace 13, and the end diagonal brace 13, the end cross rod 12 and the end upright 11 form a triangular structure, so that the structural strength and the overall stability of the end upright 11 are improved.
In some embodiments, the photovoltaic module 1 is provided with a center post 17 at an end remote from the end post 11, the end of the module cable 2 passing through the top of the center post 17, the bottom of the center post 17 being provided with a center post foundation 18.
Specifically, the assembly cable 2 passes through the top of the center post 17 and then transfers the load to the foundation through the center post foundation 18 of the center post 17, and the center post reduces the prestress of the assembly cable 2 by reducing the span, and at the same time, the center post can reduce the weight of the counterweight module and improve the stress condition of the whole end anchoring system.
According to the photovoltaic flexible support system provided by the embodiment of the application, the photovoltaic flexible support system comprises a photovoltaic bracket and a tensioning device. The tensioning device comprises an end upright post 11, a counterweight module 9, a pulley block and a cable-stayed foundation 16, wherein an end post foundation 14 is arranged at the bottom of the end upright post 11, the counterweight module 9 is connected with the end post foundation 14, the pulley block is connected with the end upright post 11 through a pulley clamp, the pulley block is connected with the counterweight module 9 through a driving rope 8, the pulley block is connected with the photovoltaic module 1 through a module rope 2, the cable-stayed foundation 16 is connected with the top of the end upright post 11, and the cable-stayed foundation 16 is far away from the photovoltaic module 1. The gravity of the counterweight module 9 applies prestress to the assembly cable 2 through the pulley block, when the temperature rises, the assembly cable 2 stretches, the counterweight module 9 drives the pulley block and the driving cable 8 to adjust under the action of gravity, so that the deflection and the prestress of the assembly cable 2 are inconvenient, the prestress loss caused by the temperature rise is compensated, and the influence of the assembly cable 2 on the photovoltaic assembly 1 can be avoided. The assembly cable 2 is a steel strand.
The technical advantages of the photovoltaic flexible support system according to the embodiment of the application are the same as those of the photovoltaic cable structure self-adaptive tensioning device, and are not repeated here.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those skilled in the art without departing from the scope of the application.
Claims (10)
1. The utility model provides a cable structure self-adaptation tensioning device for photovoltaic which characterized in that includes:
the bottom of the end upright post is provided with an end post foundation;
the counterweight module is connected with the end column foundation;
the pulley block is connected with the end upright post through a pulley clamp, is connected with the counterweight module through a transmission rope, and is connected with the photovoltaic module through a module rope;
and the cable-stayed foundation is connected with the top of the end upright post and is far away from the photovoltaic module.
2. The self-adaptive tensioning device for a photovoltaic cable structure according to claim 1, wherein the pulley block comprises a movable pulley, a first fixed pulley and a second fixed pulley, the movable pulley is connected with a movable pulley clamp, the first fixed pulley and the second fixed pulley are connected with a fixed pulley clamp, and the fixed pulley clamp is connected with the top of the end upright.
3. The self-adaptive tensioning device for a photovoltaic cable structure according to claim 2, wherein a first end of the assembly cable is connected with the photovoltaic assembly, a second end of the assembly cable is connected with a movable pulley clamp, a first end of the driving cable is connected with the movable pulley clamp, and a second end of the driving cable sequentially bypasses the second fixed pulley, the movable pulley and the first fixed pulley and then is connected with the counterweight module.
4. The photovoltaic cable structure adaptive tensioning device of claim 1, wherein the counterweight module is connected to the end column foundation by a safety cable.
5. The photovoltaic cable structure self-adaptive tensioning device of claim 1, wherein the cable-stayed foundation is connected with the top of the end upright post through a diagonal draw bar.
6. The self-adaptive tensioning device for a photovoltaic cable structure according to claim 1, wherein the number of the end upright posts is two, and the pulley blocks are in one-to-one correspondence with the end upright posts.
7. The adaptive tensioning device for a photovoltaic cable according to claim 6, wherein an end cross bar is disposed between the two end posts, and two ends of the end cross bar are respectively connected to the top of the two end posts.
8. The adaptive tensioning device for a photovoltaic cable structure of claim 7, further comprising an end diagonal brace having one end connected to the top of the end column and the other end connected to the bottom of an adjacent end column.
9. The photovoltaic cable structure adaptive tensioning device of claim 6, wherein a center pillar is provided at an end of the photovoltaic module remote from the end pillar, an end of the module cable passes through a top of the center pillar, and a center pillar foundation is provided at a bottom of the center pillar.
10. A photovoltaic flexible support system comprising a photovoltaic support and a tensioning device, the tensioning device being a photovoltaic cable structure adaptive tensioning device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310653546.6A CN116599428A (en) | 2023-06-02 | 2023-06-02 | Photovoltaic cable structure self-adaptive tensioning device and photovoltaic flexible supporting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310653546.6A CN116599428A (en) | 2023-06-02 | 2023-06-02 | Photovoltaic cable structure self-adaptive tensioning device and photovoltaic flexible supporting system |
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| Publication Number | Publication Date |
|---|---|
| CN116599428A true CN116599428A (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310653546.6A Pending CN116599428A (en) | 2023-06-02 | 2023-06-02 | Photovoltaic cable structure self-adaptive tensioning device and photovoltaic flexible supporting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117833781A (en) * | 2024-01-16 | 2024-04-05 | 徐州日托新材料科技有限公司 | Flexible photovoltaic bracket |
-
2023
- 2023-06-02 CN CN202310653546.6A patent/CN116599428A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117833781A (en) * | 2024-01-16 | 2024-04-05 | 徐州日托新材料科技有限公司 | Flexible photovoltaic bracket |
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