Photovoltaic area expansion method and photovoltaic area expansion device
By installing front columns, rear columns and oblique braces at the junction of flexible photovoltaic brackets and fixed photovoltaic brackets, the problem of space waste at the junction is solved, and land utilization and photovoltaic power generation area are improved.
Patent Information
- Application Number
- CN202411804842.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-02-28
AI Technical Summary
In the scenario of land resources shortage, the waste of space at the junction of flexible and fixed photovoltaic brackets leads to low land utilization, increasing project costs and completion time.
By installing the front and rear columns on the upper part of the outermost trapped pile of the flexible photovoltaic bracket and installing oblique braces, combining laying purlins and photovoltaic modules, the blank area between the flexible photovoltaic bracket and the fixed photovoltaic bracket covers the photovoltaic module.
The area at the junction of flexible and fixed photovoltaic brackets is effectively utilized, the area of photovoltaic power generation is increased, the land utilization rate is improved, and the project cost and completion time is reduced.
Smart Images
Figure CN119543764A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of photovoltaic power generation, and further to a photovoltaic area expansion method and a photovoltaic area expansion device. Background Art
[0002] With the rapid development of photovoltaic power generation, the land used for photovoltaic power generation is becoming less and less, which has led to the increasing application of flexible brackets, which are more land-saving solutions. With the maturity of flexible bracket solution technology, photovoltaic power generation projects such as fishery-photovoltaic complementary and mountainous areas currently mostly use a combination of flexible brackets and fixed brackets.
[0003] In scenarios such as land resource shortage, in order to meet capacity requirements, it is often necessary to adopt a flexible + fixed bracket solution. In order to better save land resources, flexible brackets are generally used on larger and flatter plots, and fixed brackets are arranged in the remaining corners.
[0004] However, due to the existence of flexible support inclined piles, a large space is wasted at the junction of the flexible and fixed parts, and there is no way to improve land utilization more effectively. It may be necessary to find new land to fill the capacity gap, which increases the project cost to a certain extent and may not be completed on time.
[0005] In view of the shortcomings of existing technologies, how to make full use of the area at the junction of the flexible bracket and the fixed bracket is a technical problem that needs to be solved at present. Summary of the invention
[0006] The core of the present invention is to provide a photovoltaic area expansion method, in the area between the flexible photovoltaic bracket and the fixed photovoltaic bracket, the photovoltaic components are supported by inclined piles, so as to realize the lighting utilization of the blank area and the lighting utilization of the flexible-solid interface area. The specific scheme is as follows:
[0007] A photovoltaic area expansion method, comprising:
[0008] Install flexible photovoltaic brackets;
[0009] Install the front column and the rear column on the upper part of the outermost inclined pile of the flexible photovoltaic support, and install the diagonal brace;
[0010] Continue to install fixed photovoltaic brackets on the outside of the flexible photovoltaic bracket according to the designed spacing;
[0011] Laying purlins, starting from the end crossbar of the flexible photovoltaic support and laying them to the fixed photovoltaic support;
[0012] The photovoltaic components are laid out starting from a preset distance from the cross bar at the end of the flexible photovoltaic support, so that the blank area between the flexible photovoltaic support and the fixed photovoltaic support covers the photovoltaic components.
[0013] Optionally, the installation of a flexible photovoltaic support includes:
[0014] The inclined-stayed pile is cast and an inclined-stayed embedded part for fixing a steel cable is arranged on the side of the inclined-stayed pile.
[0015] Optionally, the flexible photovoltaic support, the inclined piles, and the fixed photovoltaic support are located at the same elevation.
[0016] Optionally, the design spacing is 500mm±100mm.
[0017] The present invention also provides a photovoltaic area expansion device, comprising a flexible photovoltaic bracket and a fixed photovoltaic bracket, wherein inclined piles are arranged on the outer side of the flexible photovoltaic bracket, a front column and a rear column are installed on the upper part of the inclined piles, an intermediate purlin is installed on the top of the front column and the top of the rear column, and an inclined brace is installed between the front column or one of the intermediate purlins and the rear column; the intermediate purlin is used to support photovoltaic modules.
[0018] Optionally, the inclined-stayed pile is a reinforced concrete pile, and embedded parts are embedded in the side walls of the inclined-stayed pile.
[0019] Optionally, the embedded part includes an embedded plate and a rib plate, the embedded plate is embedded in the concrete and welded to the steel bars inside the inclined-stayed pile, and the rib plate is perpendicular to the embedded plate and exposed;
[0020] The rib plate is provided with an opening matched with the oblique-stayed steering member. The oblique-stayed steering member is a U-shaped member, with fixing plates provided at both ends thereof and connected with a steel cable through an extrusion anchor.
[0021] Optionally, two groups of the inclined-stayed piles are provided, and each of the inclined-stayed piles is connected to a inclined-stayed steel cable.
[0022] Optionally, the flexible photovoltaic support, the inclined piles, and the fixed photovoltaic support have the same elevation.
[0023] Optionally, the lower end of the diagonal brace is bound to the rear column through a collar, and the upper end is mounted on the middle purlin through a hinge seat.
[0024] The present invention provides a photovoltaic area expansion method. After installing a flexible photovoltaic support, a front column and a rear column are installed on the upper part of the outermost inclined pile of the flexible photovoltaic support, and an inclined brace is installed to make the front column and the rear column have better anti-tilting ability; the fixed photovoltaic support is continued to be installed at the outer side of the flexible photovoltaic support according to the designed spacing; the purlin is laid from the end cross bar of the flexible photovoltaic support to the fixed photovoltaic support, and the purlin is used as a supporting member; then the photovoltaic module is laid, and the photovoltaic module is laid from the preset distance from the end cross bar of the flexible photovoltaic support, and the photovoltaic module is installed in the area between the flexible photovoltaic support and the fixed photovoltaic support, so that the blank area between the flexible photovoltaic support and the fixed photovoltaic support is covered with the photovoltaic module. The present invention utilizes the inclined pile to provide support, so that the area at the junction of the flexible photovoltaic support and the fixed support is utilized, and the area of photovoltaic power generation is increased. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0026] Figure 1 A front view of a photovoltaic system using the photovoltaic area expansion device of the present invention;
[0027] Figure 2 A top view of a photovoltaic system using the photovoltaic area expansion device of the present invention;
[0028] Figure 3 for Figure 1 Cross-section view in the AA direction;
[0029] Figure 4 for Figure 1 Cross-section along the middle BB direction;
[0030] Figure 5 for Figure 1 Cross-sectional view in the mid-CC direction;
[0031] Figure 6 This is a schematic diagram of the coordination between the flexible photovoltaic support and the inclined piles;
[0032] Figure 7 This is a schematic diagram of embedded parts.
[0033] The figure includes:
[0034] Flexible photovoltaic support 1, flexible foundation piles 11, flexible columns 12, flexible purlins 13, flexible steel cables 14, fixed photovoltaic support 2, fixed foundation 21, fixed columns 22, fixed purlins 23, trusses 24, inclined piles 3, front columns 31, rear columns 32, middle purlins 33, diagonal braces 34, collars 341, hinged seats 342, inclined steel cables 35, photovoltaic modules 4, cross beams 41, embedded parts 5, embedded plates 51, rib plates 52, inclined steering parts 6, fixed plates 61, and extrusion anchors 62. DETAILED DESCRIPTION
[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the photovoltaic area expansion method and the photovoltaic area expansion device of the present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0036] The present invention provides a photovoltaic area expansion method, comprising the following steps:
[0037] Install flexible photovoltaic bracket; combine Figure 1 As shown, the flexible photovoltaic bracket 1 includes a flexible foundation pile 11 and a flexible column 12. The flexible column 12 is installed on the upper end of the flexible foundation pile 11. The flexible foundation pile 11 is buried in the ground. A part of the upper end of the flexible foundation pile 11 is exposed on the ground. The flexible column 12 extends upward to provide support for the upper components.
[0038] Combination Figure 2 As shown, a row of flexible columns 12 are arranged at intervals to support a row of photovoltaic modules 4. The flexible columns 12 include two structures. Two flexible columns 12 are arranged in parallel at both ends of a row, and a single flexible column 12 is arranged in the middle. Flexible purlins 13 are installed above the flexible columns 12, two flexible steel cables 14 are installed on the flexible purlins 13, and photovoltaic modules 4 are installed on the flexible steel cables.
[0039] The front column and the rear column are installed on the upper part of the outermost inclined pile of the flexible photovoltaic support, and the inclined brace is installed. Since the flexible photovoltaic support supports the photovoltaic module 4 through the flexible steel cable 14, the flexible photovoltaic support 1 at both ends of a row of photovoltaic modules 4 will be subjected to the lateral side tension of the flexible steel cable 14, so it is necessary to set the inclined pile 3, which is buried in the ground and connected between the inclined pile 3 and the flexible photovoltaic support 1 at the end through the inclined steel cable 35. The inclined steel cable 35 provides a pulling force to resist the roll, thereby preventing the flexible photovoltaic support 1 from rolling.
[0040] In combination Figure 4As shown, since two flexible photovoltaic brackets 1 are arranged in parallel at the end, two corresponding inclined piles 3 are also arranged at one end, and columns are installed at the upper end of each inclined pile 3, which are a front column 31 and a rear column 32. The height of the front column 31 is less than the height of the rear column 32. Middle purlins 33 are installed at the upper ends of the front columns 31 and the rear columns 32. The middle purlins 33 are arranged at an angle, and cross beams 41 are installed on the middle purlins 33 to provide support for the cross beams 41, and photovoltaic modules 4 are installed on the cross beams 41.
[0041] Continue to install the fixed photovoltaic bracket on the outside of the flexible photovoltaic bracket according to the designed spacing. Figure 1 , Figure 2 , Figure 5 As shown, the fixed photovoltaic bracket 2 includes a fixed foundation 21 and a fixed column 22. The fixed foundation 21 is buried in the ground with its upper end exposed to the ground. The fixed column 22 is fixedly installed on the upper end of the fixed foundation 21. A fixed purlin 23 is installed on the upper end of the fixed column 22. The fixed column 22 is usually arranged in a single piece. In order to provide stable support for the fixed purlin 23, a truss 24 for structural reinforcement is also required.
[0042] The purlins are laid from the end crossbars of the flexible photovoltaic support to the fixed photovoltaic support; the purlins include flexible purlins 13, fixed purlins 23 and intermediate purlins 23, which have the same structure and can support the flexible steel cables 14 and the crossbeams 41. For a row of photovoltaic modules 4, a row of purlins needs to be set to support a row of photovoltaic modules 4.
[0043] Lay out the photovoltaic modules, starting from the preset distance from the crossbar of the flexible photovoltaic support end, so that the blank area between the flexible photovoltaic support and the fixed photovoltaic support covers the photovoltaic modules. Figure 1 , Figure 2 As shown, the photovoltaic components of the flexible photovoltaic bracket 1 are laid on the flexible steel cable 14. Since the inclined piles 3 are correspondingly provided with middle purlins 33, the middle purlins 33 and the fixed purlins 23 jointly support the crossbeam 41. The photovoltaic components 4 can be installed on the crossbeam 41. The photovoltaic components 4 cover the area between the flexible photovoltaic bracket 1 and the fixed photovoltaic bracket 2, thereby fully utilizing the area between the flexible photovoltaic bracket 1 and the fixed photovoltaic bracket 2, thereby realizing the lighting utilization of the original blank area. Under the same floor space conditions, the area at the junction of the flexible photovoltaic bracket and the fixed bracket is utilized, thereby increasing the area of photovoltaic power generation.
[0044] Based on the above scheme, the installation of flexible photovoltaic brackets specifically includes:
[0045] The cast-into-molded inclined-stayed pile has an inclined-stayed embedded part 5 for fixing the steel cable on the side of the inclined-stayed pile. The embedded part 5 is fixed on the side wall of the inclined-stayed pile 3. The embedded part 5 is used to connect the inclined steel cable 35 to provide an oblique traction force to the flexible photovoltaic bracket 1 at the end. Since the front column 31 and the rear column 32 are installed at the top of the inclined-stayed pile 3, the embedded part 5 is installed on the side wall of the inclined-stayed pile 3 to provide a space for the front column 31 and the rear column 32 to avoid. The embedded part 5 can also be set on the front column 31 and the rear column 32, and fixed to the front column 31 and the rear column 32 by welding. These specific implementations should also be included in the protection scope of the present invention.
[0046] The flexible photovoltaic bracket, inclined piles and fixed photovoltaic bracket are located at the same elevation. Figure 1 The three sections AA, BB and CC are Figure 3 , Figure 4 , Figure 5 As shown, after the corresponding purlins are installed, each purlin is at the same height, so that when the photovoltaic components 4 are finally installed, the photovoltaic components in the same row are at the same height.
[0047] The photovoltaic components 4 installed on the fixed photovoltaic support 2 and the inclined piles 3 are arranged continuously. There is a designed spacing between the photovoltaic components 4 above the inclined piles 3 and the flexible photovoltaic support 1 at the end, and the designed spacing is about 500mm±100mm; for example, the photovoltaic components 4 are laid starting from about 500mm away from the flexible photovoltaic support 1, reserving space for maintenance while avoiding shading.
[0048] The present invention also provides a photovoltaic area expansion device, comprising a flexible photovoltaic support 1 and a fixed photovoltaic support 2, wherein an inclined pull pile 3 is arranged outside the flexible photovoltaic support 1, and a fixed photovoltaic support 2 is provided. Figure 1 , Figure 2 As shown, the inclined pile 3 on the right is located between the flexible photovoltaic bracket 1 and the fixed photovoltaic bracket 2, and there is no fixed photovoltaic bracket 2 outside the inclined pile 3 on the left. Therefore, it is only necessary to make corresponding settings for the inclined pile 3 on the right between the flexible photovoltaic bracket 1 and the fixed photovoltaic bracket 2, and install the front column 31 and the rear column 32, while the inclined pile 3 on the left only needs to provide lateral tensioning force, and there is no need to set the front column 31 and the rear column 32.
[0049] A front column 31 and a rear column 32 are installed on the upper part of the inclined pile 3, and the front column 31 and the rear column 32 are respectively installed on two parallel inclined piles 3. The top of the front column 31 and the top of the rear column 32 are installed with a middle purlin 33, which is inclined and used to support the photovoltaic module 4, and is kept parallel to the panel surface of the photovoltaic module 4.
[0050] A diagonal brace 34 is installed between the front column 31 or one of the middle purlins 33 and the rear column 32, Figure 4 As shown, in this embodiment, the upper end of the diagonal brace 34 is connected to the middle purlin 33, and the lower end is installed on the rear column 32. The diagonal brace 34, the middle purlin 33, and the rear column 32 form a triangular structure, thereby providing more stable supporting performance.
[0051] The inclined-stayed pile 3 of the present invention is a reinforced concrete pile, in which a steel bar skeleton is pre-bound and arranged, and concrete is poured. The side wall of the inclined-stayed pile 3 is embedded with an embedded part 5, which can be fixed on the steel bar skeleton in advance and poured into the concrete layer, and a part of the embedded part 5 is exposed on the side wall of the inclined-stayed pile 3.
[0052] Combination Figure 7 As shown, the embedded part 5 includes an embedded plate 51 and a rib plate 52. The embedded plate 51 and the rib plate 52 are perpendicular to each other. The embedded plate 51 is embedded in the concrete and welded to the steel bars inside the inclined pile 3. The rib plate 52 is perpendicular to the embedded plate 51 and exposed.
[0053] The rib plate 52 is provided with an opening that matches the inclined steering member 6. The inclined steering member 6 is a U-shaped member. The inclined steering member 6 passes through the opening to achieve coordinated tensioning. The two ends of the inclined steering member 6 are flush, and a fixing plate 61 is provided at both ends. The fixing plate 61 is fixedly assembled on the inclined steering member 6 and connected to the inclined steel cable 35 through an extrusion anchor 62. The extrusion anchor 62 is fixed to the inclined steel cable 35 to achieve tensioning of the inclined steel cable 35.
[0054] Combination Figure 2 As shown, two groups of inclined piles 3 are arranged between the flexible photovoltaic support 1 and the fixed photovoltaic support 2, each group is respectively provided with two inclined piles 3, each inclined pile 3 is connected with an inclined steel cable 35, and a total of four inclined steel cables 35 are arranged. Each flexible photovoltaic support 1 at the end corresponds to two inclined steel cables 35, respectively, providing double insurance. When one inclined steel cable 35 fails, the other inclined steel cable 35 still provides tension. Although two groups of inclined piles 3 are arranged, the front column 31 and the rear column 32 only need to be arranged on one of the groups.
[0055] The elevations of the flexible photovoltaic bracket 1, the inclined piles 3, and the fixed photovoltaic bracket 2 are equal. After the corresponding purlins are installed on the flexible photovoltaic bracket 1, the inclined piles 3, and the fixed photovoltaic bracket 2, each purlin is at the same height, so that when the photovoltaic components 4 are finally installed, the photovoltaic components in the same row are at the same height.
[0056] Combination Figure 4As shown, the lower end of the diagonal brace 34 is bound to the rear column 32 through a collar 341, and the collar 341 surrounds the rear column 32 and is fastened by bolts, so that the lower end of the diagonal brace 34 is limited in the horizontal direction and friction is formed in the vertical direction. The upper end of the diagonal brace 34 is installed on the middle purlin 33 through a hinge seat 342, and the hinge seat 342 is fixed to the middle purlin 33 by bolts or welding. The hinge seat 342 and the upper end of the middle purlin 33 are hinged by bolts, and the hinge seat 342 forms a horizontal limit on the upper end of the middle purlin 33, and through the vertical limit, the middle purlin 33 can be prevented from sliding down.
[0057] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A photovoltaic area expansion method, characterized in that: include: Install flexible photovoltaic brackets; Install the front column and the rear column on the upper part of the outermost inclined pile of the flexible photovoltaic support, and install the diagonal brace; Continue to install fixed photovoltaic brackets on the outside of the flexible photovoltaic bracket according to the designed spacing; Laying purlins, starting from the end crossbar of the flexible photovoltaic support and laying them to the fixed photovoltaic support; The photovoltaic components are laid out starting from a preset distance from the cross bar at the end of the flexible photovoltaic support, so that the blank area between the flexible photovoltaic support and the fixed photovoltaic support covers the photovoltaic components.
2. The photovoltaic area expansion method according to claim 1, characterized in that: The installation of the flexible photovoltaic support comprises: The inclined-stayed pile is cast and an inclined-stayed embedded part for fixing a steel cable is arranged on the side of the inclined-stayed pile.
3. The photovoltaic area expansion method according to claim 1, characterized in that: The flexible photovoltaic support, the inclined piles, and the fixed photovoltaic support are located at the same elevation.
4. The photovoltaic area expansion method according to claim 1, characterized in that: The design spacing is 500mm±100mm.
5. A photovoltaic area expansion device, characterized in that: The invention comprises a flexible photovoltaic support (1) and a fixed photovoltaic support (2), wherein an inclined pile (3) is arranged on the outer side of the flexible photovoltaic support (1), a front column (31) and a rear column (32) are installed on the upper part of the inclined pile (3), an intermediate purlin (33) is installed on the top of the front column (31) and the top of the rear column (32), and an inclined brace (34) is installed between the front column (31) or one of the intermediate purlins (33) and the rear column (32); the intermediate purlin (33) is used to support a photovoltaic module (4).
6. The photovoltaic area expansion device according to claim 5, characterized in that: The inclined-stayed pile (3) is a reinforced concrete pile, and a pre-embedded part (5) is embedded in the side wall of the inclined-stayed pile (3).
7. The photovoltaic area expansion device according to claim 5, characterized in that: The embedded part (5) comprises an embedded plate (51) and a rib plate (52); the embedded plate (51) is embedded in the concrete and welded to the steel bars inside the inclined pile (3); the rib plate (52) is perpendicular to the embedded plate (51) and exposed outside; The rib plate (52) is provided with an opening that cooperates with the oblique-stayed steering member (6). The oblique-stayed steering member (6) is a U-shaped member, with fixing plates (61) provided at both ends thereof and connected to a steel cable via an extrusion anchor (62).
8. The photovoltaic area expansion device according to claim 5, characterized in that: The inclined-stayed piles (3) are arranged in two groups, and each of the inclined-stayed piles (3) is connected to an inclined-stayed steel cable.
9. The photovoltaic area expansion device according to claim 5, characterized in that: The flexible photovoltaic support (1), the inclined pile (3), and the fixed photovoltaic support (2) have the same elevation.
10. The photovoltaic area expansion device according to claim 5, characterized in that: The lower end of the diagonal brace (34) is bound to the rear column (32) via a collar (341), and the upper end is mounted on the middle purlin (33) via a hinge seat (342).