CN217115982U - Novel space cable net photovoltaic support system - Google Patents

Abstract

The utility model belongs to the technical field of the photovoltaic capital construction, a novel space cable net photovoltaic supports system is related to. A novel space cable net photovoltaic supporting system mainly comprises ridge cables and valley cables which are alternately arranged in parallel, and oblique cables which are used for connecting the ridge cables and the valley cables; two ends of the ridge cable and the valley cable are respectively fixed at the top of the swing bracket; the bottom of the swing bracket is hinged to the ground embedded part; and arranging a supporting cable in a plane perpendicular to the direction of the ridge cable, and fixing a photovoltaic module bracket on the supporting cable. The utility model discloses a chevron shape sways the design of high, short post and makes the tip need not to erect large cross-section crossbeam, and the middle part does not have the stand, is applicable to multiple complicated topography, and the logical long ridge cable and the millet cable of arranging in turn link to each other with the cable chute through V-arrangement cable node, form the space cable net system that large-span and centre do not have the support, and the system wholeness is good, and three-dimensional rigidity obtains guaranteeing, provides reliable and stable support for photovoltaic module.

Description

A Novel Space Cable Net Photovoltaic Support System

technical field

The utility model belongs to the technical field of photovoltaic infrastructure, and relates to a novel space cable net photovoltaic support system.

Background technique

In response to the national call for energy conservation and emission reduction, photovoltaic power generation technology is one of the focuses of current energy development. With the large-scale construction of photovoltaic power generation projects, the site conditions have become more and more complex, including: deserts, Gobi, tidal flats, fish ponds, sewage plants, mountains and roofs. In order to adapt to different and complex terrain conditions, flexible photovoltaic stents have been proposed and widely used. Compared with fixed rigid photovoltaic supports, the use of flexible photovoltaic supports has obvious advantages, including: (1) small self-weight, less steel consumption, small number of foundations, and low cost; (2) it has the characteristics of long-span overhead and adapts to various landforms Features, increase the utilization rate of environmental space; (3) strong pre-installation, short construction period. With the development of some terrains with good conditions (such as deserts, plains, etc.), and at the same time, under the background of the country's promotion of complementary fishing and photovoltaics, complementary agricultural photovoltaics and complex mountain photovoltaics, flexible photovoltaic supports will have broad application prospects.

In the design of some current photovoltaic power station projects, flexible photovoltaic supports generally adopt the form of single-layer suspension cable structure and prestressed cable truss structure. Among them, the single-layer suspension cable structure is a variable system, which is prone to large mechanical displacement under the action of wind load and asymmetric load, which is unfavorable for photovoltaic modules; moreover, the stiffness in the wind suction direction is small. ; In addition, in order to reduce the mid-span deflection, support columns are often arranged in the mid-span. The prestressed cable truss scheme is an effective way to solve the problems of low stiffness and shape instability of the single-layer cable structure. stiffness, so that the double-layer cable structure can jointly resist external loads. It should be noted that most of the prestressed cable truss structures use a truss as the smallest unit, and each truss is stretched on the end beam. Secondly, the ability of each element to resist out-of-plane deformation is weak (that is, the out-of-plane stiffness is low), and each element independently resists external loads, resulting in poor integrity. Therefore, the span that can be achieved by this structure is limited, and if a larger span is to be realized, a central support column needs to be added. This system will not be suitable for scenarios where it is not appropriate to provide support columns in the middle of the span (eg, large cesspools).

Utility model content

The purpose of the utility model is to provide a novel space cable net photovoltaic support system, which can provide reliable and stable support for photovoltaic modules under different loads, and is suitable for various complex terrains and large-span sites.

In order to achieve the above purpose, the technical scheme adopted by the present invention is: a novel space cable net photovoltaic support system, which mainly includes notochords and valley cables arranged alternately in parallel, and oblique cables connecting the notochords and valley cables; the notochords The two ends of the and valley cables are respectively fixed on the top of the rocking support; the bottom of the rocking support is hinged on the ground embedded parts; the support cables are arranged in a plane perpendicular to the direction of the ridge cable, and the photovoltaic module brackets are fixed on the support cables.

Further, the top of the rocking support is fixed on the ground embedded parts through prestressed vertical cables.

Further, the included angle between the plane where the rocking bracket is located and the horizontal plane is 30-60 degrees.

Further, the swinging bracket is a herringbone swinging bracket, and the included angle is 20-40 degrees.

Further, the herringbone-shaped swinging support includes a herringbone-shaped swinging high column connected with the notochord, and a herringbone-shaped swinging low column connected with the valley cable.

Further, the oblique cables are respectively connected to the V-shaped cable clips fixed on the notochord and the valley, and a continuous M-shaped oblique cable network is formed between the adjacent ridges and valleys.

Further, the branch cables are connected to the in-line cable clips on the notochords, and are arranged in parallel between adjacent notochords.

Further, the inclination angle between the photovoltaic module support and the notochord plane is 10-39 degrees.

Compared with the existing flexible photovoltaic support, the novel space cable net photovoltaic support system provided by the present invention has the following beneficial effects:

(1) It can achieve large span and no column in the middle, which is suitable for a variety of complex terrains;

(2) The integrity of the system is good, and the three-dimensional stiffness is guaranteed, providing reliable and stable support for photovoltaic modules;

(3) The force of the herringbone rocking column is simple, and the purpose of no beam at the end is achieved.

Description of drawings

Fig. 1 is the overall schematic diagram of the photovoltaic support system of the novel space cable net in the embodiment of the present invention;

Figure 2 is a schematic diagram of the structure of the herringbone swing bracket and the vertical cable;

Figure 3 is a schematic diagram of the connection node structure of the notochord, valley and oblique cables;

Fig. 4 is the structural representation of V-shaped cable clamp;

Figure 5 is a schematic diagram of the connection node structure of the notochord and the branch;

Figure 6 is a schematic diagram of the installation of support cables, angle steel brackets and photovoltaic modules;

In the picture: 1. Notochord; 2. Valley cable; 3. Diagonal cable; 4. Herringbone swing high column; 5. Herringbone swing low column; 6. High column vertical cable; 7. Short column vertical cable ; 8 support cables; 9. Angle steel brackets; 10. Photovoltaic modules; 11. Ground; 12. Independent foundation; 13. Strip foundation; 14. Vertical cable anchoring end; 15. Column top node; 17. Notochord V-shaped cable clip; 18. Valley cable V-shaped cable clip; 19. In-line cable clip; 20. U-shaped cable clip.

Detailed ways

In order to facilitate the understanding of the present utility model, the present utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments. The preferred embodiments of the present utility model are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure will be provided.

Example The present utility model is described by taking a novel space cable net photovoltaic support system erected in a space with a span of 72m, a length of 68m and a height of 6m as an example.

As shown in FIG. 1, the photovoltaic support system of the new space cable network provided by the present utility model is mainly composed of a chord cable 1, a valley cable 2, an oblique cable 3, a herringbone swing high column 4, a herringbone swing low column 5, and the high column vertically pulls Cable 6, short column vertical cable 7, support cable 8, angle steel bracket 9.

Among them, the notochords 1 and valley cables 2 arranged alternately and flatly form the notochord plane and the valley cable plane, respectively, and the adjacent notochords 1 and valley cables 2 are connected by oblique cables 3 to form a spatial cable network with alternating ridges and valleys. The two ends of the notochord are respectively provided with a herringbone swing high column 4 and a herringbone swing low column 5 . Both ends of the notochord 1 are connected with the top of the chevron-shaped swing high column 4 , and both ends of the valley cable 2 are connected with the top of the herringbone-shaped swing low column 5 .

The heights of the herringbone swing high column 4 and the herringbone swing low column 5 are 6m and 3m respectively, the distance between the tops of the two columns is 3.4m, and the included angle of the herringbone is 30 degrees, as shown by the angle β in Figure 2. The angle between the plane where the herringbone swing high column 4 and the short column 5 are located and the horizontal plane are both 45 degrees, as shown by the angle α in FIG. 2 .

As shown in FIG. 2 , the legs of the chevron-shaped swinging high column 4 and the chevron-shaped swinging low column 5 are anchored on the strip foundation 13 on the bottom surface 11 by means of rivet hinges, and the bending moment is released by the rivet hinged node 16, so that the It is only subjected to axial compression. The tops of the herringbone swing high column 4 and the herringbone swing low column 5 are connected to the independent foundation 12 on the ground 11 through the vertical cable anchoring end 14 of the prestressed high column vertical cable 6 and the short column vertical cable 7 fixed. Both the independent foundation 12 and the strip foundation 13 are embedded parts of the ground 11 . The top node 15 of the herringbone swing high column 4 and the herringbone swing low column 5 adopts the welding process to fix the steel plate with holes, which is convenient for the ridge cable 1, the valley cable 2 and the vertical cable 6 of the high column and the vertical cable 7 of the short column. Connection.

The notochord 1 and the valley cable 2 are respectively connected with the oblique cable 3 by the notochord V-shaped cable clip 17 and the valley cable V-shaped cable clip 18, and the three act together to form an overall stress system. As shown in FIG. 3 , the notochord V-shaped cable clips 17 are fixed on the notochord 1 at intervals, the valley cable V-shaped cable clips 18 are fixed on the valley cable 2 at intervals, and the distance between adjacent V-shaped cable clips is 8m. The notochord V-clamps 17 and the valley V-clamps 18 are alternately arranged in space. Each valley cable V-shaped cable clip 18 is located between two adjacent notochord V-shaped cable clips 17, preferably in the middle position.

In the direction along the notochord and valley cables, each notochord V-shaped cable clip 17 is matched with two adjacent valley cable V-shaped cable clips 18, and at the same time, each valley cable V-shaped cable clip 18 is in turn matched with the adjacent valley cable V-shaped cable clips 18. Two notochord V-clamps 17 fit together.

In the direction perpendicular to the direction of the notochord and valley cables, each notochord V-shaped cable clip 17 is also matched with two adjacent valley cable V-shaped cable clips 18, and each valley cable V-shaped cable clip 18 is in turn matched with the adjacent valley cable V-shaped cable clips 18. Two notochord V-clamps 17 fit together.

As shown in FIG. 4 , the V-shaped cable clamp 17 for the ridge cable and the V-shaped cable clamp for the valley cable 18 have the same structure and are composed of two V-shaped steel plates with a U-shaped groove in the middle and four holes on both sides. Four bolts are used to fix the upper and lower V-shaped steel plates with U-shaped grooves on the ridge cable 1 and the valley cable 2, and the four holes on both sides are respectively connected with the cable heads of the four diagonal cables. A continuous M-shaped oblique cable network is formed between the valley cables. The included angle of both V-shaped cable clamps is 120 degrees.

In addition, in the plane of the notochord formed by the notochord 1, the parallel struts 8 perpendicular to the notochord 1 are arranged to establish the installation platform of the photovoltaic module 10, as shown in FIG. Component mounting platform. In practical applications, the support cables should be arranged on the entire notochord plane, and the photovoltaic modules can cover the entire notochord plane.

As shown in FIG. 5 , the support cables 8 are arranged between the adjacent ridge cables 1 through the in-line cable clamps 19, wherein the distance between the support cables 8 is 0.45m, and the in-line cable clamps 19 use two bolts to connect the upper and lower two pieces. A steel plate with a U-shaped groove is fixed on the notochord 1 , and openings at both ends are connected to the head of the support cable 8 . The two support cables form a group and jointly support the angle steel bracket 9 and the photovoltaic module 10. The distance between each group is adjusted according to the size, inclination and shading of the photovoltaic module. In this embodiment, the group distance is 0.2m.

As shown in FIG. 6 , the photovoltaic module 10 is mounted on the angle steel bracket 9 by means of snaps, and the angle steel bracket 9 is then fixed on the two support cables 8 through four U-shaped cable clips 20 . Among them, the size of the photovoltaic module 10 is 880mm×510mm, the angle steel bracket 9 is welded by equilateral angle steel, its size is 880mm×480mm×175mm, and the inclination angle is 20 degrees. The U-shaped cable clamp 20 consists of a threaded U-shaped round steel and two nuts.

The novel space cable net photovoltaic support system of the utility model adopts the design of high and short columns with herringbone swing, so that there is no need to erect large cross-section beams at the ends, and there is no column in the middle, which is suitable for various complex terrains, and can be adjusted according to the site size and terrain conditions. , Design the span, length and height of the photovoltaic support system of the cable net in the space. Among them, the span is the direction along the notochord, and the length is the direction perpendicular to the notochord. Alternately arranged full-length notochords and valley cables are connected with oblique cables through V-shaped cable nodes, forming a large-span and unsupported space cable network system. The notochord is the load-bearing cable, and the valley cable is the stabilizing cable. The two work together with the oblique cable to make the system have greater rigidity in three directions (especially vertical), providing reliable and stable support for photovoltaic modules. The space cable net is erected on the inclined herringbone swing high and low columns, and the prestressed vertical cables are stretched on the top of the high and low columns to form a stable and integral space force system. Among them, the foot of the herringbone rocking column adopts a hinge constraint mechanism to release the bending moment, so that it only bears the effect of axial pressure. This structure has a simple force-bearing form, is convenient for design, and achieves the purpose of having no beam at the end.

Claims (8)

1. A novel space cable net photovoltaic support system is characterized in that: it mainly comprises notochords and valley cables arranged alternately in parallel, and oblique cables connecting the notochords and valley cables; both ends of the notochords and valley cables are fixed respectively On the top of the rocking support; the bottom of the rocking support is hinged on the ground embedded part; the support cable is arranged in a plane perpendicular to the direction of the ridge cable, and the photovoltaic module support is fixed on the support cable. 2 . The novel space cable-net photovoltaic support system according to claim 1 , wherein the top of the rocking support is fixed on the ground embedded parts through prestressed vertical cables. 3 . 3 . The novel space cable net photovoltaic support system according to claim 1 , wherein the angle between the plane where the rocking support is located and the horizontal plane is 30-60 degrees. 4 . 4 . The novel space cable net photovoltaic support system according to claim 1 , wherein the swinging bracket is a herringbone swinging bracket, and the included angle is 20-40 degrees. 5 . 5 . The novel space cable net photovoltaic support system according to claim 4 , wherein the herringbone-shaped rocking support comprises a herringbone-shaped high column connected with the notochord, and a herringbone-shaped column connected with the valley cable. 6 . Dwarf column. 6. The photovoltaic support system of the novel space cable network according to any one of claims 1-5, wherein the oblique cables are respectively connected to the V-shaped cable clips fixed on the notochord and the valley, A continuous M-shaped oblique cable network is formed between adjacent notochords and valley cables. 7. The novel space cable net photovoltaic support system according to any one of claims 1-5, characterized in that: the support cables are connected to the in-line cable clips on the notochords, and are arranged in parallel between adjacent notochords. 8 . The novel space cable net photovoltaic support system according to claim 1 , wherein the inclination angle between the photovoltaic module bracket and the notochord plane is 10 to 39 degrees. 9 .

Images