Wind-resistant damping system of flexible photovoltaic support

Abstract

A wind-resistant damping system of a flexible photovoltaic support comprises a wind-resistant cable, a bevel edge column, a middle column and a truss connector, a bearing cable and an assembly cable are arranged in parallel, photovoltaic assemblies are installed on the bearing cable and the assembly cable, and the wind-resistant cable is perpendicular to the bearing cable and the assembly cable and is connected with the bearing cable and the assembly cable through the truss connector. The two ends of the wind-resistant cable are connected with the bevel edge columns respectively, and the middle of the wind-resistant cable is connected with the middle column. The steel cable damping system composed of the balancing weight and the spring can effectively weaken disturbance of the load to the flexible support, and risks of deformation and fracture of the assembly are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to an anti-wind damping system of a flexible photovoltaic bracket. Background Art

[0002] With the rise of the new energy industry, photovoltaic land resources are becoming increasingly scarce. In order to achieve the effective utilization of various photovoltaic application scenarios, flexible brackets came into being. Flexible brackets have the structural advantages of large spans, multiple scenarios, multiple spans, multiple rows, high capacity, high clearance, and low steel content. Flexible brackets are widely used in various scenarios such as agricultural photovoltaic complementarity, fishery photovoltaic complementarity, and pastoral photovoltaic complementarity. However, the single-layer cable suspension structure, double-layer cable truss structure, and three-layer cable truss structure adopted in the early days, their component cables and stabilizing cables can resist vertical wind loads, but their lateral wind resistance is poor, and the supporting components produce excessive bending moments and deformations during the application of pre-tension. Therefore, some reliable measures need to be taken to reduce the lateral wind-induced vibration effect of flexible brackets. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an anti-wind damping system for a flexible photovoltaic bracket. The steel cable damping system composed of a counterweight block and a spring can effectively reduce the disturbance caused by the above-mentioned load to the flexible bracket and reduce the risk of component deformation and rupture.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A wind-resistant damping system for a flexible photovoltaic support comprises a wind-resistant cable, a hypotenuse column, an intermediate column and a truss connector. The load-bearing cable and the component cable are arranged in parallel, and photovoltaic components are installed on the load-bearing cable and the component cable. The wind-resistant cable is arranged vertically to the load-bearing cable and the component cable and is connected through the truss connector. The two ends of the wind-resistant cable are respectively connected to the hypotenuse column, and the middle of the wind-resistant cable is connected to the intermediate column.

[0006] In the preferred solution, the oblique side column includes an anchor pile foundation, a side pile foundation, an oblique column, an oblique brace and a first fixed pulley; the top of the side pile foundation is connected to the oblique column, the other end of the oblique column is provided with a first fixed pulley, the middle of the oblique column is connected to the oblique brace, and the other end of the oblique brace is connected to the top of the anchor pile foundation.

[0007] In a preferred solution, the end of the wind-resistant cable is connected to a counterweight block after passing through the first fixed pulley, and the bottom side of the counterweight block is connected to the anchor pile foundation through a spring.

[0008] In the preferred scheme, the middle column includes an middle pile foundation, an outer column, an inner column, a fastening bolt, a second fixed pulley and a buckle; an outer column is vertically arranged on the top of the middle pile foundation, the inner column is inserted into the outer column and can slide up and down, a fastening bolt is arranged between the inner column and the outer column, a second fixed pulley is arranged on the top of the inner column, and the middle part of the wind-resistant cable is buckled in the second fixed pulley through the buckle.

[0009] In a preferred embodiment, the truss connector includes a triangular pyramid truss, wherein the triangular pyramid truss is connected to the load-bearing cable via a first connector, the triangular pyramid truss is connected to the component cable via a second connector, and the triangular pyramid truss is connected to the wind-resistant cable via a third connector.

[0010] A wind-resistant damping system for a flexible photovoltaic support, which is composed of a steel cable damping system consisting of a counterweight block and a spring, can effectively reduce the disturbance caused by the above-mentioned load on the flexible support, and reduce the risk of component deformation and rupture; the wind-resistant damping system is suitable for the wind-resistant design of flexible supports in newly built photovoltaic power stations, and can also be used for the wind-resistant transformation of photovoltaic flexible supports without wind-resistant design that were put into production early; the system will not apply prestress to the steel hinge wires of the damping system, will not cause bending moments and deformations of upper supporting structures and photovoltaic components, and reduces the risk of deformation and hidden cracks of photovoltaic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0012] Figure 1 It is a plan side view of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the photovoltaic module installation method of the utility model;

[0014] Figure 3 This is a schematic diagram of the plane of the hypotenuse column of the utility model;

[0015] Figure 4 This is a schematic plan view of the intermediate column of the utility model;

[0016] Figure 5 This is a bottom view of the truss connector structure of the utility model.

[0017] In the figure: wind-resistant cable 1, photovoltaic module 2, hypotenuse column 3, anchor pile foundation 301, side pile foundation 302, oblique column 303, oblique brace 304, first fixed pulley 305, counterweight block 306, spring 307, middle column 4, middle pile foundation 401, outer column 402, inner column 403, fastening bolt 404, second fixed pulley 405, buckle 406, load-bearing cable 5, module cable 6, truss connector 7, triangular pyramid truss 701, first connector 702, second connector 703, third connector 704. DETAILED DESCRIPTION

[0018] like Figure 1 and Figure 2 As shown, a wind-resistant damping system of a flexible photovoltaic support includes a wind-resistant cable 1, a hypotenuse column 3, an intermediate column 4 and a truss connector 7. The load-bearing cable 5 and the component cable 6 are arranged in parallel, and the photovoltaic component 2 is installed on the load-bearing cable 5 and the component cable 6. The wind-resistant cable 1 is vertically arranged to the load-bearing cable 5 and the component cable 6 and is connected through the truss connector 7. The two ends of the wind-resistant cable 1 are respectively connected to the hypotenuse column 3, and the middle part of the wind-resistant cable 1 is connected to the intermediate column 4. The system can effectively reduce the disturbance caused by the change of the above-mentioned load on the flexible support through the steel cable damping system composed of the wind-resistant cable 1, the hypotenuse column 3 and the intermediate column 4, so as to reduce the deformation and hidden crack risks of the photovoltaic component 2.

[0019] The preferred solution is Figure 3 As shown, the oblique side column 3 includes an anchor pile foundation 301, a side pile foundation 302, an oblique column 303, an oblique brace 304 and a first fixed pulley 305; the top of the side pile foundation 302 is connected to the oblique column 303, the other end of the oblique column 303 is provided with a first fixed pulley 305, the middle of the oblique column 303 is connected to the oblique brace 304, and the other end of the oblique brace 304 is connected to the top of the anchor pile foundation 301; the end of the wind-resistant cable 1 is connected to the counterweight block 306 after passing through the first fixed pulley 305, and the bottom side of the counterweight block 306 is connected to the anchor pile foundation 301 through a spring 307;

[0020] Normally, the wind-resistant cable 1 uses a steel hinge wire with a specification of 15.2 or above. The wind-resistant cable 1 is connected to the load-bearing cable 5 and the component cable 6 through the truss connector 7. The two ends of the wind-resistant cable 1 are connected to the counterweight block 306 after passing through the first fixed pulley 305, and the counterweight block 306 provides tension. Under special working conditions of wind load and snow load, the load change is transmitted to the middle column 4, the counterweight block 306 and the spring 307 through the column top pulley 305, so that the kinetic energy of the load is gradually dissipated;

[0021] The counterweight block 306 is usually made of concrete or cast iron. The spring 307 is in a natural state under normal circumstances. It elastically deforms when there is a load change and returns to the natural state after the load disappears to buffer the deformation.

[0022] The preferred solution is Figure 4 As shown, the middle column 4 includes a middle pile foundation 401, an outer column 402, an inner column 403, a fastening bolt 404, a second fixed pulley 405 and a buckle 406; the outer column 402 is vertically arranged on the top of the middle pile foundation 401, the inner column 403 is inserted into the outer column 402 and can slide up and down, a fastening bolt 404 is arranged between the inner column 403 and the outer column 402, a second fixed pulley 405 is arranged on the top of the inner column 403, and the middle part of the wind-resistant cable 1 is clamped in the second fixed pulley 405 through the buckle 406;

[0023] In the working state, the overall height of the middle column 4 can be adjusted by telescoping the inner column 403, and the mid-span position of the flexible brackets on both sides of the middle column 4 can be flush with the span end position. After the adjustment is completed, the height of the inner column 403 can be kept fixed by tightening the fastening bolts 404; when the damping system needs to be adjusted due to long-term operation, the top buckle 406 can be opened for adjustment.

[0024] The preferred solution is Figure 5 As shown, the truss connector 7 includes a triangular cone truss 701, the triangular cone truss 701 is connected to the load-bearing cable 5 through a first connector 702, the triangular cone truss 701 is connected to the component cable 6 through a second connector 703, and the triangular cone truss 701 is connected to the wind-resistant cable 1 through a third connector 704;

[0025] The triangular pyramid truss 701 is usually an equilateral triangle structure to enhance its stability. The difference between the lengths of the sides should not be greater than 20%. The connection parts of the triangular pyramid truss 701 adopt U-shaped fastening. The first connector 702 and the second connector 703 adopt a quick-release structure to facilitate subsequent installation.

[0026] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A wind-resistant damping system for a flexible photovoltaic support, comprising a wind-resistant cable (1), a hypotenuse column (3), an intermediate column (4) and a truss connector (7), characterized in that: The load-bearing cables (5) and the component cables (6) are arranged in parallel, and the photovoltaic components (2) are installed on the load-bearing cables (5) and the component cables (6). The wind-resistant cables (1) are arranged vertically with the load-bearing cables (5) and the component cables (6) and are connected via a truss connector (7). The two ends of the wind-resistant cables (1) are respectively connected to the hypotenuse columns (3), and the middle of the wind-resistant cables (1) is connected to the middle column (4).

2. The anti-wind damping system of the flexible photovoltaic support according to claim 1 is characterized in that: The oblique side column (3) comprises an anchor pile foundation (301), a side pile foundation (302), an oblique column (303), an oblique brace (304) and a first fixed pulley (305); the top of the side pile foundation (302) is connected to the oblique column (303), the other end of the oblique column (303) is provided with the first fixed pulley (305), the middle of the oblique column (303) is connected to the oblique brace (304), and the other end of the oblique brace (304) is connected to the top of the anchor pile foundation (301).

3. The anti-wind damping system of the flexible photovoltaic support according to claim 2 is characterized in that: The end of the wind-resistant cable (1) is connected to a counterweight block (306) after passing through a first fixed pulley (305), and the bottom side of the counterweight block (306) is connected to an anchor pile foundation (301) via a spring (307).

4. The anti-wind damping system of the flexible photovoltaic support according to claim 1 is characterized in that: The middle column (4) comprises an intermediate pile foundation (401), an outer column (402), an inner column (403), a fastening bolt (404), a second fixed pulley (405) and a buckle (406); the outer column (402) is vertically arranged on the top of the middle pile foundation (401), the inner column (403) is inserted into the outer column (402) and can slide up and down, a fastening bolt (404) is arranged between the inner column (403) and the outer column (402), the second fixed pulley (405) is arranged on the top of the inner column (403), and the middle part of the wind-resistant cable (1) is buckled into the second fixed pulley (405) through the buckle (406).

5. The anti-wind damping system of the flexible photovoltaic support according to claim 1 is characterized in that: The truss connector (7) comprises a triangular pyramid truss (701), wherein the triangular pyramid truss (701) is connected to a load-bearing cable (5) via a first connector (702), the triangular pyramid truss (701) is connected to a component cable (6) via a second connector (703), and the triangular pyramid truss (701) is connected to a wind-resistant cable (1) via a third connector (704).

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