Elastic supporting structure and method for photovoltaic flexible support

Abstract

The invention discloses an elastic supporting structure and method for a photovoltaic flexible support, the elastic supporting structure comprises a main cable, an inhaul cable, a fixed pier and a supporting assembly, the two ends of the main cable are respectively connected with the supporting assembly, one end of the inhaul cable is connected with the supporting assembly, and the other end of the inhaul cable is connected with the fixed pier. When the stand column assembly is blown by typhoons, the first elastic pieces at the two ends of the transverse supporting piece A and the transverse supporting piece B and the second elastic pieces on the supporting piece A are subjected to the wind action, the second elastic pieces bear vertical partial pressure and stretching and maintain vertical balance, the first elastic pieces and the second elastic pieces jointly bear horizontal wind pressure, the stand column assembly is prevented from being deformed or torn and damaged, and the service life of the stand column assembly is prolonged. And the stability and the safety of the bracket supporting structure are effectively ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of solar power generation, and in particular relates to an elastic support structure and method for a photovoltaic flexible bracket. Background Art

[0002] In recent years, with the rapid development of the photovoltaic power generation industry, available land has become increasingly scarce, which shows the importance of using flexible brackets instead of traditional fixed brackets, which can not only improve land utilization, but also increase photovoltaic capacity. However, during the construction or operation process, the horizontal braces between the traditional flexible bracket support structures are generally welded on the columns. When there is a strong typhoon, it will make the weaker parts of the welding parts prone to stress concentration, tearing the columns or deforming and damaging the columns, resulting in higher economic investment. Therefore, in order to avoid such phenomena, it is necessary to use a flexible bracket lateral support structure with an elastic system and an elastic micro-contraction function, so as to play a supporting role while avoiding deformation or tearing of the columns.

[0003] The patent document with the announcement number CN115946812A discloses a transverse cable anchoring structure of a floating array and a water photovoltaic system, including a main rope and multiple auxiliary ropes, wherein the main rope is horizontally arranged across two opposite banks of the water area; multiple auxiliary ropes are connected between the floating array and the main rope, and at least part of the rope segments of the auxiliary ropes are elastic rope segments. In the actual application process of the transverse cable anchoring structure of the floating array, when the middle part of the main rope is deformed, such as the middle part of the main rope is bent toward the floating array, since at least part of the rope segments of the auxiliary ropes are elastic rope segments, the auxiliary ropes can be adaptively stretched and deformed, and then the auxiliary ropes in the middle can also be stressed and play a mooring role, reducing the force deviation of the auxiliary ropes, that is, reducing the risk of deformation or even damage of the floating array due to uneven force.

[0004] The patent document with announcement number CN221856320U discloses a retractable bracket support adjustment device based on a building steel structure, including a group of support columns perpendicular to the horizontal plane, the top ends of the support columns are slidably connected with sliding columns, the top ends of the sliding columns are fixedly connected with cross beams, a group of support plates are attached to the bottom ends of the cross beams, the support plates are slidably connected to the outer walls of the support columns, slide plates are provided under the support plates, a group of transmission plates are hinged between the slide plates and the support plates, the slide plates penetrate the limiting plates and are slidably connected thereto, the outer walls of the support columns are fixedly connected with hydraulic rods, the bottom ends of the slide plates are fixedly connected with fixed blocks corresponding to the hydraulic rods, and the fixed blocks are fixedly connected to the ends of the hydraulic rods, which solves the problems that the existing building steel structures are often fixed, which are cumbersome to adjust, and the compressive resistance of the cross beams is poor.

[0005] The patent document with announcement number CN221784080U discloses a photovoltaic bracket support device, including an I-shaped frame, a height adjustment device is arranged above the I-shaped frame, and the height adjustment device includes a fixed platform, a guide rod, a guide cylinder, a support cylinder, a worm gear, a screw and a connecting seat. The fixed platform is arranged above the I-shaped frame, and guide rods are fixed to the upper ends of the four corners of the I-shaped frame, and guide cylinders are fixed at the four corners of the fixed platform. The guide cylinders are slidably sleeved on the outer walls of the guide rods, and support cylinders are arranged on the left and right sides of the I-shaped frame. A worm gear is rotatably connected to the support cylinder, and a screw is arranged inside the support cylinder. The worm gear is rotated manually to drive the screw rod to rotate, so that the connecting seat moves, and the guide rod in the guide cylinder is used to guide the movement process to complete the height movement process of the fixed platform, so as to solve the technical problem that the height of the photovoltaic bracket cannot be adjusted.

[0006] The above patent does not involve the technical content of elastically connecting the columns, and the rigid connection between the columns makes it difficult to avoid deformation or tearing of the columns in strong winds. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a photovoltaic flexible bracket elastic support structure and method.

[0008] The present invention is achieved through the following technical solutions.

[0009] The present invention provides a photovoltaic flexible bracket elastic support structure, which includes a main cable, a cable, a fixed pier and a support assembly. The two ends of the main cable are respectively connected to the support assembly, one end of the cable is connected to the support assembly, and the other end of the cable is connected to the fixed pier.

[0010] Preferably, the support assembly is symmetrically arranged in two parts, the support assembly includes a column assembly, a cross brace A, a cross brace B, a support member A and a pipe pile, the column assembly includes a column A and a column B, one end of the column A and the column B are respectively connected to the pipe pile, the other ends of the column A and the column B are respectively connected to the main cable and the cable, the cross brace A, the cross brace B and the support member A are all connected to the column A at one end, and the cross brace A, the cross brace B and the support member A are all connected to the column B at the other end.

[0011] Preferably, the top of the column A and the column B are provided with a cable hole A, a cable hole B and an anchor in sequence from bottom to top, and the cable hole A, the cable hole B and the anchor are fixed by bolts, and the column A and the column B are connected to the cable through the cable hole A or the cable hole B, and the column A and the column B are connected to the main cable through the anchor.

[0012] Preferably, the material of the column A and the column B is galvanized aluminum-magnesium, the two ends of the cross brace A and the cross brace B are respectively connected to the column assembly through a first elastic member, the support member A is connected to the column assembly through a second elastic member, and the first elastic member and the second elastic member are both connected to the column assembly through a welding sheet.

[0013] Preferably, the support member A comprises a support rod, two support rods are provided, both ends of the support rod are respectively connected to the second elastic member, and the two support rods are cross-connected in an X shape.

[0014] Preferably, the elastic coefficients of the first elastic member and the second elastic member are determined according to the typhoon level to be dealt with, and the calculation formula includes:

[0015] According to the force balance and energy conservation of the elastic system, we can get:

[0016] P=K1S1+K2S2cosθ

[0017] P(S1+S2cosθ)=K1S1 2 +K2S2 2

[0018] Furthermore, the elastic deformation limit of the spring is:

[0019]

[0020]

[0021] K1 is the elastic coefficient of the first elastic member, S1 is the elastic deformation limit of the first elastic member, K2 is the elastic coefficient of the second elastic member, S2 is the elastic deformation limit of the second elastic member, P is the maximum horizontal wind pressure corresponding to the typhoon level, and angle θ is the angle between the support rod and the cross brace A or the cross brace B.

[0022] Preferably, the column A and the column B are connected to the pipe pile via a base, a reinforcement piece is provided on the base, and the reinforcement piece is connected to the column A and the column B.

[0023] Preferably, the base includes a support seat and a support tube, one side of the support seat is connected to the support tube, and the other side of the support seat is connected to the column A and the column B, and the support tube is arranged in a groove of the pipe pile.

[0024] Preferably, the fixing pier is made of concrete, embedded parts are arranged on the fixing pier, the cable is connected to the fixing pier via the embedded parts, buckles are arranged on the main cable, and the photovoltaic components are connected via the main cable and the buckles.

[0025] A method for installing a photovoltaic flexible bracket elastic support structure comprises the following steps:

[0026] T1: Before the production of pipe piles, the installation base is embedded in the pipe piles;

[0027] T2: Drive the pile into the staked point and calibrate;

[0028] T3: Fully weld the columns A and B on the base, and avoid welds and slag inclusions during welding;

[0029] T4: Connect the cross brace A, cross brace B and support A into an elastic support unit through welding pieces, and then weld them to the columns A and B;

[0030] T5: Fix the cable hole pieces A and B on the columns A and B;

[0031] T6: Install the cable and tension the main cable, and fix the tensioned main cable with anchors;

[0032] T7: Install the remaining components.

[0033] The beneficial effects of the present invention are:

[0034] When the present invention is blown by a typhoon, the first elastic parts at both ends of the cross brace A and the cross brace B and the second elastic part on the support part A are respectively subjected to the action of wind force, and the second elastic part bears the vertical pressure distribution and stretching to maintain vertical balance. The first elastic part and the second elastic part jointly bear the horizontal wind pressure to avoid deformation or tearing damage of the column assembly, thereby effectively ensuring the stability and safety of the bracket support structure.

[0035] By setting the cable hole member A and the cable hole member B, the cable hole member A is used as a common connecting member and the cable hole member B is used as a spare connecting member. When the cable hole member A cannot meet the structural force requirements, the cable is jumped from the cable hole member A to the cable hole member B to maintain the stability of the structure, thereby improving the durability of the supporting structure.

[0036] By embedding the base in the prefabricated pipe piles and welding the column assembly to the base, the base's ability to resist damage is effectively improved; and the cable holes are installed on the columns through clamps, which is easy to install and adjust, and also provides an effective way to ensure structural safety and reasonable force. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of the present invention;

[0038] Figure 2 It is a schematic diagram of the structure of the support assembly of the present invention;

[0039] Figure 3 It is a schematic diagram of the structure of region B of the present invention;

[0040] Figure 4 This is a schematic diagram of the connection between the column B and the base of the present invention;

[0041] Figure 5 It is a structural schematic diagram of the base of the present invention;

[0042] Figure 6 It is a structural schematic diagram of the AA section of the present invention;

[0043] Figure 7 It is a schematic diagram of the structure of the support assembly of the present invention;

[0044] Figure 8 It is a schematic diagram of force analysis of the elastic support system of the present invention;

[0045] Fig. 9 It is the installation flow chart of the present invention;

[0046] In the figure: 1- buckle, 2-main cable, 3-column A, 4-column B, 5-welding piece, 6-cross brace A, 7-cross brace B, 8-support member A, 81-support rod, 9-first elastic member, 10-second elastic member, 11-cable hole member A, 12-cable hole member B, 13-anchor, 14-bolt, 15-cable, 16-pile, 161-groove, 17-fixed pier, 18-embedded part, 19-base, 191-support seat, 192-support tube, 20-reinforcement member, 21-photovoltaic module, 22-soil layer. DETAILED DESCRIPTION

[0047] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0048] Example:

[0049] like Figures 1 to 9 As shown, a photovoltaic flexible bracket elastic support structure includes a main cable 2, a cable 15, a fixed pier 17 and a support assembly, wherein both ends of the main cable 2 are respectively connected to the support assembly, one end of the cable 15 is connected to the support assembly, and the other end of the cable 15 is connected to the fixed pier 17.

[0050] The support assembly is symmetrically arranged in two parts, and the support assembly includes a column assembly, a cross brace A6, a cross brace B7, a support member A8 and a pipe pile 16. Two pipe piles 16 are arranged in the support assembly. The column assembly includes a column A3 and a column B4. One end of the column A3 and the column B4 are respectively connected to the pipe pile 16, and the other ends of the column A3 and the column B4 are respectively connected to the main cable 2 and the cable 15. The cross brace A6, the cross brace B7 and the support member A8 are all connected to the column A3 at one end, and the other end of the cross brace A6, the cross brace B7 and the support member A8 are all connected to the column B4.

[0051] A cable eye A11, a cable eye B12 and an anchor 13 are sequentially arranged on the top of the column A3 and the column B4 from bottom to top. The cable eye A11, the cable eye B12 and the anchor 13 are connected and fixed by bolts 14. The column A3 and the column B4 are connected to the cable 15 through the cable eye A11 or the cable eye B12, wherein the cable 15 is preferentially connected to the cable eye A11 to prevent the column assembly from tilting and maintain the stability of the force of the column assembly. The cable eye B12 is used as a spare connecting piece. When the cable eye A11 cannot meet the structural force requirements, the cable 15 is jumped from the cable eye A11 to the cable eye B12 to maintain the stability of the structure. The column A3 and the column B4 are connected to the main cable 2 through the anchor 13. The cable hole pieces A11 and B12 are fixed on the columns A3 and B4 through clamps. The size of the clamps must match the diameters of the columns A3 and B4. The through hole diameters of the cable hole pieces A11 and B12 must be suitable for the free insertion of the cable 15.

[0052] The material of the column A3 and the column B4 is galvanized aluminum-magnesium, and the column A3 and the column B4 are cylindrical. The two ends of the cross brace A6 and the cross brace B7 are respectively connected to the column assembly through the first elastic member 9, and the support member A8 is connected to the column assembly through the second elastic member 10. The first elastic member 9 and the second elastic member 10 are both connected to the column assembly through the welding piece 5. The first elastic member 9 at the two ends of the cross brace A6 and the cross brace B7 and the second elastic member 10 connected to the support member A8 constitute an elastic support system, so that the two pipe piles 16 in the support assembly are elastically connected.

[0053] The support member A8 includes a support rod 81, two support rods 81 are provided, and both ends of the support rod 81 are respectively connected to the second elastic member 10, and the two support rods 81 are cross-connected in an X shape, and the cross-connection point is located in the middle of the two support rods 81. The two support rods 81 constitute an integral support member A8. This arrangement makes one end of the support rod 81 close to the cross brace A6 and the other end close to the cross brace B7, and the angle θ can be obtained.

[0054] When the supporting structure is blown by a typhoon, the first elastic members 9 at both ends of the cross braces A6 and B7 and the second elastic member 10 on the supporting member A8 are respectively subjected to the action of wind force, and the second elastic member 10 bears the vertical pressure distribution and stretching to maintain vertical balance. The first elastic member 9 and the second elastic member 10 jointly bear the horizontal wind pressure, effectively ensuring the stability and safety of the bracket supporting structure.

[0055] The elastic coefficients of the first elastic member 9 and the second elastic member 10 are determined according to the typhoon level to be dealt with, and the calculation formula includes:

[0056] The relationship between each spring coefficient, maximum wind pressure, and elastic deformation limit must satisfy the following:

[0057] P=K1S1+K2S2cosθ (1)

[0058]

[0059] The spring constant is:

[0060]

[0061] K1 is the elastic coefficient of the first elastic member 9, S1 is the elastic deformation limit of the first elastic member 9, K2 is the elastic coefficient of the second elastic member 10, S2 is the elastic deformation limit of the second elastic member 10, P is the maximum horizontal wind pressure corresponding to the typhoon level, and the maximum horizontal wind pressure can be determined by determining the typhoon level to be resisted, and the angle θ is the angle between the support rod 81 and the cross brace A6 or the cross brace B7. The first elastic member 9 and the second elastic member 10 are springs.

[0062] When the typhoon design level is determined, the design values ​​of the spring coefficients K1 and K2 can be taken according to the above calculated values, and the angle θ is preferably 45°, which can also be taken according to the actual situation.

[0063] The column A3 and the column B4 are connected to the pipe pile 16 via a base 19 . A reinforcing member 20 is provided on the base 19 . The reinforcing member 20 is connected to the column A3 and the column B4 .

[0064] The base 19 includes a support seat 191 and a support tube 192 . One side of the support seat 191 is connected to the support tube 192 , and the other side of the support seat 191 is connected to the column A3 and the column B4 . The support tube 192 is disposed in the groove 161 of the pipe pile 16 .

[0065] The base 19 is embedded in the prefabricated pipe pile 16, and the column assembly is welded on the base 19, which effectively improves the base 19's ability to resist damage; and the cable 15 hole is installed on the column through a clamp, which is easy to install and adjust, and also provides an effective way to ensure structural safety and reasonable force.

[0066] The fixed pier 17 is made of concrete, and an embedded part 18 is arranged on the fixed pier 17. The cable 15 is connected to the fixed pier 17 through the embedded part 18. The fixed pier 17 and the pipe pile 16 are both fixed on the soil layer 22.

[0067] The main cable 2 is provided with a buckle 1 , and the photovoltaic assembly 21 is connected via the main cable 2 and the buckle 1 .

[0068] A method for installing a photovoltaic flexible bracket elastic support structure comprises the following steps:

[0069] T1: Before the production of the pipe pile 16, a mounting base 19 is pre-buried on the pipe pile 16;

[0070] T2: using a pile driver to drive the pipe pile 16 into the marked point and calibrate it;

[0071] T3: Fully weld the column A3 and the column B4 to the base 19, and avoid welds and slag inclusions during the welding process;

[0072] T4: Connect the horizontal cross braces of the cross brace A6 and the cross brace B7 and the cross brace A8 to form an elastic support structure through the welding piece 5, and then weld them to the columns A3 and B4;

[0073] T5: Fix the cable hole pieces A11 and B12 to the columns A3 and B4 by means of clamp connection;

[0074] T6: Install the cable 15 and tension the main cable 2, and fix the tensioned main cable 2 by the anchor 13;

[0075] T7: Install the remaining components.

Claims

1. A photovoltaic flexible support elastic support structure, characterized in that: It comprises a main cable (2), a cable (15), a fixed pier (17) and a support assembly, wherein both ends of the main cable (2) are respectively connected to the support assembly, one end of the cable (15) is connected to the support assembly, and the other end of the cable (15) is connected to the fixed pier (17).

2. A photovoltaic flexible bracket elastic support structure as claimed in claim 1, characterized in that: The support assembly is symmetrically arranged in two parts, and the support assembly includes a column assembly, a cross brace A (6), a cross brace B (7), a support member A (8) and a pipe pile (16). The column assembly includes a column A (3) and a column B (4). One end of the column A (3) and the column B (4) are respectively connected to the pipe pile (16), and the other ends of the column A (3) and the column B (4) are respectively connected to the main cable (2) and the cable (15). The cross brace A (6), the cross brace B (7) and the support member A (8) are all connected to the column A (3) at one end, and the cross brace A (6), the cross brace B (7) and the support member A (8) are all connected to the column B (4) at the other end.

3. A photovoltaic flexible bracket elastic support structure as claimed in claim 2, characterized in that: A cable eye piece A (11), a cable eye piece B (12) and an anchor (13) are sequentially arranged on the top of the column A (3) and the column B (4) from bottom to top; the cable eye piece A (11), the cable eye piece B (12) and the anchor (13) are connected and fixed by bolts (14); the column A (3) and the column B (4) are connected to the cable (15) by the cable eye piece A (11) or the cable eye piece B (12); and the column A (3) and the column B (4) are connected to the main cable (2) by the anchor (13).

4. A photovoltaic flexible bracket elastic support structure as claimed in claim 2, characterized in that: The material of the column A (3) and the column B (4) is galvanized aluminum-magnesium. The two ends of the cross brace A (6) and the cross brace B (7) are respectively connected to the column assembly through a first elastic member (9). The support member A (8) is connected to the column assembly through a second elastic member (10). The first elastic member (9) and the second elastic member (10) are both connected to the column assembly through a welding sheet (5).

5. A photovoltaic flexible support elastic support structure as claimed in claim 4, characterized in that: The support member A (8) comprises a support rod (81), two support rods (81) are provided, two ends of the support rod (81) are respectively connected to the second elastic member (10), and the two support rods (81) are cross-connected in an X shape.

6. A photovoltaic flexible bracket elastic support structure as claimed in claim 4 or 5, characterized in that: The elastic coefficients of the first elastic member (9) and the second elastic member (10) are determined according to the typhoon level to be dealt with, and the calculation formula includes: P=K1S1+K2S2cosθ P(S1+S2cosθ)=K1S1 2 +K2S2 2 Furthermore, the elastic deformation limit of the spring is: K1 is the elastic coefficient of the first elastic member (9), S1 is the elastic deformation limit of the first elastic member (9), K2 is the elastic coefficient of the second elastic member (10), S2 is the elastic deformation limit of the second elastic member (10), P is the maximum horizontal wind pressure corresponding to the typhoon level, and the angle θ is the angle between the support rod (81) and the cross brace member A (6) or the cross brace member B (7).

7. A photovoltaic flexible support elastic support structure as claimed in claim 2, characterized in that: The column A (3) and the column B (4) are connected to the pipe pile (16) via a base (19). A reinforcing member (20) is provided on the base (19), and the reinforcing member (20) is connected to the column A (3) and the column B (4).

8. A photovoltaic flexible support elastic support structure as claimed in claim 7, characterized in that: The base (19) comprises a support seat (191) and a support tube (192); one side of the support seat (191) is connected to the support tube (192); the other side of the support seat (191) is connected to the column A (3) and the column B (4); and the support tube (192) is arranged in a groove (161) of the pipe pile (16).

9. The photovoltaic flexible support elastic support structure according to claim 1, characterized in that: The fixed pier (17) is made of concrete, an embedded part (18) is arranged on the fixed pier (17), the cable (15) is connected to the fixed pier (17) via the embedded part (18), a buckle (1) is arranged on the main cable (2), and the photovoltaic assembly (21) is connected via the main cable (2) and the buckle (1).

10. A method for installing the photovoltaic flexible support elastic support structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: T1: Before the pipe pile (16) is produced, a mounting base (19) is embedded in the pipe pile (16); T2: driving the pipe pile (16) into the staked point and calibrating it; T3: Fully weld the column A (3) and the column B (4) to the base (19) respectively, and avoid weld seams and slag inclusions during the welding process; T4: After the cross brace A (6), the cross brace B (7) and the support A (8) are connected to form an elastic support structure through the welding sheet (5), they are then welded to the column A (3) and the column B (4); T5: fixing the cable hole piece A (11) and the cable hole piece B (12) to the column A (3) and the column B (4); T6: installing the stay cable (15) and tensioning the main cable (2), and fixing the tensioned main cable (2) by means of the anchor (13); T7: Install the remaining components.

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