A dual support structure for photovoltaic load bearing cable failure support repair and replacement and methods of use thereof

Abstract

The application discloses a double-support structure for repairing and replacing a damaged support of a photovoltaic load-bearing cable and a use method thereof, and belongs to the technical field of solar power generation. The structure comprises two parallelly arranged photovoltaic load-bearing cables and a double-support support unloading device. The two photovoltaic load-bearing cables are supported by a plurality of support frames. The support frame comprises a stand and a support arranged on the stand. The double-support support unloading device is arranged on the stand of the support frame where the support has been damaged, and the double-support support unloading device supports the two photovoltaic load-bearing cables upward to unload the damaged support. The damaged support is unloaded by the double-support support unloading device, and all the components of the damaged support can be repaired and replaced. When the double-support support unloading device is installed and fixed to the stand, drilling is not needed on the support frame, the operation and use convenience of the double-support support unloading device is improved, and the repairing and replacing efficiency of the damaged support is improved.

Description

Technical Field

[0001] This invention relates to a double-support structure for repairing and replacing damaged brackets of photovoltaic load-bearing cables and its usage method, belonging to the field of solar power generation technology. Background Technology

[0002] With the continuous development of the photovoltaic industry, flexible photovoltaic support systems have been widely used in fields such as fishpond photovoltaics, agricultural photovoltaic integration, and tea photovoltaic integration. A flexible photovoltaic support system mainly includes photovoltaic load-bearing cables for supporting photovoltaic brackets and photovoltaic modules, and multiple support frames for supporting the photovoltaic load-bearing cables. Each support frame includes columns and brackets mounted on the columns.

[0003] During photovoltaic (PV) operation, the supports on the pillars may suffer partial or complete damage under the influence of factors such as strong typhoons or earthquakes. This can affect the load-bearing capacity and stability of the flexible PV support system, threatening the safe operation of the PV supports and modules. Therefore, when supports are damaged, they need to be repaired and replaced promptly.

[0004] Chinese patent document CN116175464A discloses a device and method for the maintenance and replacement of a floating photovoltaic system support structure. The device includes a top support unit fixed above the main support column, comprising a base plate, a telescopic cylinder, and inclined blocks. The upper surface of the inclined blocks is in close contact with the lower surface of the photovoltaic support rod. By controlling the extension of the telescopic cylinder, the inclined blocks are lifted upwards to temporarily support and position the photovoltaic support rod. An inclined bracing unit is fixed to the side wall of the main support column and located below the detachable support components. It includes inclined bracing rods and positioning components. The inclined bracing rods position the two protruding sides of the photovoltaic support rod relative to the main support column, providing temporary support for the photovoltaic support system during disassembly. By pre-setting temporary supports in the middle and on both sides of the photovoltaic support rod, the device achieves the technical effect of maintaining and replacing the support structure of a single photovoltaic sub-string without removing the components and main beam of the photovoltaic support structure, ensuring the normal operation of the photovoltaic system.

[0005] However, this device relies on photovoltaic support rods to provide temporary support for the photovoltaic modules, which has significant limitations. When the photovoltaic support rods are damaged, they cannot be replaced using this device. Furthermore, fixing the upper end of the diagonal brace to the photovoltaic support rod via bolt sets requires drilling holes on the photovoltaic support rod at corresponding positions, reducing the ease of operation and thus decreasing the efficiency of bracket maintenance and replacement. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a double-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports, and a method for using the structure.

[0007] This invention is achieved through the following technical solution:

[0008] A double-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports includes two photovoltaic load-bearing cables arranged side by side and a double-support support unloading device. The two photovoltaic load-bearing cables are supported by multiple support frames. Each support frame includes a column and a bracket mounted on the column. The double-support support unloading device is mounted on the column in the support frame where the bracket has been damaged, and the double-support support unloading device supports the two photovoltaic load-bearing cables upward to unload the damaged bracket.

[0009] The dual-support bracket unloading device includes a support frame and two load-bearing cable support mechanisms. The support frame is mounted on a column, and the two load-bearing cable support mechanisms are arranged side by side on the support frame, each supporting one of the two photovoltaic load-bearing cables.

[0010] The support frame includes clamp A and clamp B. Clamp A has two horizontal support rods symmetrically arranged along its radial direction, and the two horizontal support rods are arranged coaxially. Clamp B is arranged coaxially with clamp A and is located below clamp A. Clamp B is connected to the two horizontal support rods through diagonal braces.

[0011] The load-bearing cable support mechanism includes a base, a lifting assembly, and a vertical support rod. The base is mounted on a support frame. The lower end of the lifting assembly is connected to the base, and the lower end of the vertical support rod is connected to the upper end of the lifting assembly. A limit groove is provided at the upper end.

[0012] The base includes a square base plate and a limiting frame disposed on the square base plate.

[0013] The limiting frame includes a circular ring and multiple diagonal support strips evenly distributed at the bottom of the circular ring.

[0014] The circular rings are connected to the midpoints of each side of the top surface of the square base plate via diagonal strips, and the angle between the diagonal strips and the square base plate is 45° to 60°.

[0015] The lifting assembly is a hydraulic jack.

[0016] The limiting groove is U-shaped with the U-shaped opening facing upwards. The opening width of the limiting groove is adapted to the diameter of the photovoltaic load-bearing cable, and the depth of the limiting groove is not less than 1.5 times the diameter of the photovoltaic load-bearing cable.

[0017] A method for using a double-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports includes the following steps:

[0018] Step 1: Adjust the orientation of the double support structure according to the requirements, and then tighten and fix clamp A and clamp B to the damaged column of the support frame to realize the installation and fixation of the double support structure.

[0019] Step 2: Operate the lifting components in the two load-bearing cable support mechanisms to push the vertical support rods upward, and make the two photovoltaic load-bearing cables correspondingly engage with the limiting grooves on the vertical support rods of the two load-bearing cable support mechanisms;

[0020] Step 3: Simultaneously operate the lifting components in the two load-bearing cable support mechanisms to make the vertical support rod continue to move upward, forming support for the two photovoltaic load-bearing cables and unloading the damaged support.

[0021] Step 4: Remove the damaged bracket from the column and install and fix the new bracket to the column;

[0022] Step 5: Simultaneously operate the lifting components in the two load-bearing cable support mechanisms to move the vertical support rod down to below the photovoltaic load-bearing cable and make the new bracket support the photovoltaic load-bearing cable. Then loosen clamps A and B and separate the double support structure from the column to disassemble the double support structure for reuse.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. The double-support bracket unloading device replaces the damaged bracket to support the two photovoltaic load-bearing cables and unloads the damaged bracket. It can repair or replace the damaged top support rod, damaged column and damaged diagonal support rod. In other words, it can repair and replace all the components of the damaged bracket, which improves the practicality of the double-support bracket unloading device.

[0025] 2. When the double support bracket unloading device is installed and fixed on the column, it is not necessary to drill holes in the support frame, which avoids stress concentration or damage to the support frame. At the same time, it improves the ease of operation and use of the double support bracket unloading device, thereby improving the efficiency of repair and replacement of damaged brackets.

[0026] 3. The support frame can be quickly and securely installed onto column 1 using clamps A and B, facilitating timely repair and replacement of damaged supports. This ensures the support frame's load-bearing capacity and stability for the flexible photovoltaic support system, thereby guaranteeing the safe operation of the photovoltaic support frame and photovoltaic modules.

[0027] 4. The photovoltaic load-bearing cable is limited by the limiting groove, so that the photovoltaic load-bearing cable only has the upward degree of freedom. This prevents the photovoltaic load-bearing cable from shifting laterally or slipping off the vertical support rod during the lifting process of the hydraulic jack, effectively ensuring the safety and operability of the double support structure when the hydraulic jack lifts upward.

[0028] 5. The hydraulic jack is limited by the limit bracket to prevent it from shifting to the side or tipping over, which improves the safety of operation and facilitates the safe removal and replacement of damaged supports.

[0029] 6. The lifting height of the lifting components in the two load-bearing cable support mechanisms can be determined separately to meet the support requirements of the double support bracket unloading device for the two photovoltaic load-bearing cables, the unloading requirements for the damaged bracket, and the tilt angle requirements of the photovoltaic brackets and photovoltaic modules on the two load-bearing cables during bracket replacement, etc.

[0030] 7. The structure is relatively simple. The double-support bracket unloading device can be made using waste materials on the construction site, which effectively improves the comprehensive utilization rate of materials on the construction site and reduces the manufacturing cost of the double-support bracket unloading device. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 yes Figure 1 A magnified view of the area at point K;

[0033] Figure 3 yes Figure 1 A cross-sectional view along JJ;

[0034] Figure 4 yes Figure 3 Sectional view along CC;

[0035] Figure 5 yes Figure 3 Sectional view along DD;

[0036] Figure 6 This is a top view of the limiting frame of the present invention;

[0037] Figure 7 This is a schematic diagram of the main structure of the limiting frame of the present invention;

[0038] Figure 8 This is a flowchart illustrating the steps of using the present invention.

[0039] In the diagram: 1-Column, 2-Vertical support rod, 4-Lifting component, 6-Diagonal support bar, 8-Square base plate, 10-Horizontal support rod, 12-Diagonal brace, 14-Clamp A, 15-Clamp B, 16-Photovoltaic load-bearing cable, 17-Damaged column, 18-Damaged diagonal brace, 19-Damaged top support rod, 20-Circular ring, 21-Water surface. Detailed Implementation

[0040] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0041] like Figures 1 to 8As shown, the present invention discloses a double-support structure for repairing and replacing damaged photovoltaic load-bearing cables, comprising two photovoltaic load-bearing cables 16 arranged side by side and a double-support unloading device. The two photovoltaic load-bearing cables 16 are supported by multiple support frames, each support frame including a column 1 and a bracket mounted on the column 1. The double-support unloading device is located on the column 1 where the bracket is damaged, and the double-support unloading device supports the two photovoltaic load-bearing cables 16 upwards to unload the damaged bracket. Figure 1 As shown, during use, the support is positioned above the water surface 21. The damaged support includes a damaged top support rod 19, a damaged column 17, and two damaged diagonal support rods 18. A double-support support unloading device is used to replace the damaged support to support the two photovoltaic load-bearing cables 16 and to unload the damaged support. This allows for the repair or replacement of the damaged top support rod 19, the damaged column 17, and the damaged diagonal support rods 18, meaning all components of the damaged support can be repaired or replaced, improving the practicality of the double-support support unloading device. Furthermore, when installing and fixing the double-support support unloading device onto the column 1, drilling holes in the support frame is unnecessary, avoiding stress concentration or damage to the support frame. This also improves the ease of operation and use of the double-support support unloading device, thereby increasing the efficiency of repairing and replacing the damaged support.

[0042] The dual-support bracket unloading device includes a bearing frame and two load-bearing cable support mechanisms. The bearing frame is mounted on the column 1, and the two load-bearing cable support mechanisms are arranged side by side on the bearing frame, each corresponding to and supporting one of the two photovoltaic load-bearing cables 16.

[0043] The support frame includes clamps A14 and B15. Clamp A14 has two horizontal support rods symmetrically arranged radially along its radial direction, and the two horizontal support rods 10 are coaxially arranged. Clamp B15 is coaxially arranged with clamp A14 and is located below clamp A14. Clamp B15 is connected to the two horizontal support rods 10 via diagonal braces 12. In use, clamps A14 and B15 allow for quick and non-destructive installation and fixation of the support frame onto the column 1, facilitating timely repair and replacement of damaged supports. This ensures the support frame's load-bearing capacity and stability for the flexible photovoltaic support system, thereby guaranteeing the safe operation of the photovoltaic support and photovoltaic modules. It is recommended that the horizontal support rods 10 be made of channel steel or box-shaped steel and welded to clamp A14. The dimensions and strength of clamps A14 and B15 must meet the stress requirements of a single support structure. The diagonal braces 12 are made of angle steel or channel steel.

[0044] The load-bearing cable support mechanism includes a base, a lifting assembly 4, and a vertical support rod 2. The base is mounted on a support frame. The lower end of the lifting assembly 4 is connected to the base, and the lower end of the vertical support rod 2 is connected to the upper end of the lifting assembly 4, with a limiting groove at the upper end. In use, the vertical support rod 2 is made of box-shaped steel, and its length is determined according to the lifting height and the installation height of the support frame. The limiting groove limits the photovoltaic load-bearing cable 16, ensuring that the photovoltaic load-bearing cable 16 only has an upward degree of freedom. This prevents the photovoltaic load-bearing cable 16 from shifting laterally or slipping off the vertical support rod 2 during the hydraulic jack lifting process, effectively ensuring the safety and operability of the double-support structure when the hydraulic jack lifts upward.

[0045] The base includes a square base plate 8 and a limiting frame disposed on the square base plate 8. In use, the square base plate 8 is welded and fixed to the horizontal support rod 10.

[0046] The limiting frame includes a circular ring 20 and multiple diagonal support strips 6 evenly distributed at the bottom of the circular ring 20. In use, the limiting frame is welded to the support frame as a single unit. The limiting frame limits the hydraulic jack, preventing lateral displacement or tipping, improving operational safety, and facilitating the safe removal and replacement of damaged supports. The dimensions of the limiting frames in both load-bearing cable support mechanisms are adapted to the corresponding dimensions of the hydraulic jacks; the limiting frames use a diameter not less than... The steel bars are used, and the materials of the limit frames in the two load-bearing cable support mechanisms can be the same or different, but they must meet the requirements for fixing hydraulic jacks.

[0047] The circular ring 20 is connected to the midpoint of each side of the top surface of the square base plate 8 through the inclined strip 6, and the angle between the inclined strip 6 and the square base plate 8 is 45° to 60°.

[0048] The lifting component 4 is a hydraulic jack. The hydraulic jacks in the two load-bearing cable support mechanisms can be the same or different in model, specification and lifting weight, but must meet the minimum lifting height requirement to facilitate the removal of the damaged support.

[0049] The limiting groove is U-shaped with its opening facing upwards. The opening width of the limiting groove is adapted to the diameter of the photovoltaic load-bearing cable 16, and the depth of the limiting groove is not less than 1.5 times the diameter of the photovoltaic load-bearing cable 16. This ensures the reliability of the limiting groove in limiting the photovoltaic load-bearing cable 16.

[0050] A method for using a double-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports includes the following steps:

[0051] Step 1: Adjust the orientation of the double support structure according to the requirements, and then tighten and fix clamps A14 and B15 to the damaged column 1 of the support frame to achieve the installation and fixation of the double support structure.

[0052] Step 2: Operate the lifting components 4 in the two load-bearing cable support mechanisms to push the vertical support rods 2 upwards, and make the two photovoltaic load-bearing cables 16 correspondingly engage with the limiting grooves on the vertical support rods 2 of the two load-bearing cable support mechanisms.

[0053] Step 3: Simultaneously operate the lifting components 4 in both load-bearing cable support mechanisms to continue moving the vertical support rod 2 upwards, providing support for the two photovoltaic load-bearing cables 16 and unloading the damaged support. The lifting height of the lifting components 4 in the two load-bearing cable support mechanisms can be determined separately to meet the support requirements of the dual support support unloading device for the two photovoltaic load-bearing cables 16, the unloading requirements for the damaged support, and the tilt angle requirements of the photovoltaic support and photovoltaic modules on the two load-bearing cables 16 during support replacement.

[0054] Step 4: Remove the damaged bracket on column 1 and install and fix the new bracket on column 1.

[0055] Step 5: Simultaneously operate the lifting components 4 in the two load-bearing cable support mechanisms to move the vertical support rod 2 down to below the photovoltaic load-bearing cable 16, and make the new bracket support the photovoltaic load-bearing cable 16. Then loosen the clamps A14 and B15, and separate the double support structure from the column 1 to disassemble the double support structure for reuse.

Claims

1. A double-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports, characterized in that: It includes two photovoltaic load-bearing cables (16) arranged side by side and a double support bracket unloading device. The two photovoltaic load-bearing cables (16) are supported by multiple support frames. The support frame includes a column (1) and a bracket set on the column (1). The double support bracket unloading device is set on the column (1) in the support frame where the bracket has been damaged. The double support bracket unloading device supports the two photovoltaic load-bearing cables (16) upward to unload the damaged bracket. The double-support bracket unloading device includes a support frame and two load-bearing cable support mechanisms. The support frame is installed on the column (1), and the two load-bearing cable support mechanisms are arranged side by side on the support frame and support the two photovoltaic load-bearing cables (16) one by one. The support frame includes a clamp A (14) and a clamp B (15). The clamp A (14) is symmetrically provided with two horizontal support rods (10) along its radial direction, and the two horizontal support rods (10) are arranged coaxially. The clamp B (15) is arranged coaxially with the clamp A (14), and the clamp B (15) is located below the clamp A (14). The clamp B (15) is connected to the two horizontal support rods (10) through diagonal braces (12). The load-bearing cable support mechanism includes a base, a lifting component (4) and a vertical support rod (2). The base is mounted on a support frame. The lower end of the lifting component (4) is connected to the base. The lower end of the vertical support rod (2) is connected to the upper end of the lifting component (4). A limit groove is provided at the upper end. The base includes a square base plate (8) and a limiting frame disposed on the square base plate (8).

2. The double-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports as described in claim 1, characterized in that: The limiting frame includes a circular ring (20) and multiple inclined support strips (6) evenly distributed at the bottom of the circular ring (20).

3. The double-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports as described in claim 2, characterized in that: The circular ring (20) is connected to the midpoint of each side of the top surface of the square base plate (8) through the inclined strip (6), and the angle between the inclined strip (6) and the square base plate (8) is 45°~60°.

4. The double-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports as described in claim 1, characterized in that: The lifting assembly (4) is a hydraulic jack.

5. The double-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports as described in claim 1, characterized in that: The limiting groove is U-shaped with the U-shaped opening facing upward. The opening width of the limiting groove is adapted to the diameter of the photovoltaic load-bearing cable (16), and the depth of the limiting groove is not less than 1.5 times the diameter of the photovoltaic load-bearing cable (16).

6. A method of using a double-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports as described in any one of claims 1 to 5, characterized in that: Includes the following steps: Step 1: Adjust the orientation of the double support structure according to the requirements, and then clamp A (14) and clamp B (15) are clamped and fixed on the column (1) of the support frame that has been damaged, so as to realize the installation and fixation of the double support structure. Step 2: Operate the lifting components (4) in the two load-bearing cable support mechanisms to push the vertical support rod (2) upward, and make the two photovoltaic load-bearing cables (16) correspondingly inserted into the limiting grooves on the vertical support rods (2) of the two load-bearing cable support mechanisms; Step 3: Simultaneously operate the lifting components (4) in the two load-bearing cable support mechanisms to make the vertical support rod (2) continue to move upward, forming support for the two photovoltaic load-bearing cables (16) and realizing the unloading of the damaged bracket; Step 4: Remove the damaged bracket on the column (1) and install and fix the new bracket on the column (1); Step 5: Simultaneously operate the lifting components (4) in the two load-bearing cable support mechanisms to move the vertical support rod (2) down to the bottom of the photovoltaic load-bearing cable (16) and make the new bracket support the photovoltaic load-bearing cable (16). Then loosen the clamps A (14) and B (15) and separate the double support structure from the column (1) to disassemble the double support structure for reuse.

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