CN217607736U - Purlin-free photovoltaic support and photovoltaic system - Google Patents

Abstract

The utility model relates to the technical field of photovoltaic equipment, and provides a purlin-free photovoltaic bracket, which comprises a plurality of bracket units which are sequentially arranged along the X direction; the support unit comprises a foundation, an upright post fixed on the foundation and two cross beams arranged above the upright post and arranged side by side along the X direction, wherein the cross beams are perpendicular to the X direction, and two ends of each cross beam are respectively connected with the upright post through inclined rods. The photovoltaic system comprises a photovoltaic module and a photovoltaic bracket without purlins; the photovoltaic module is installed on the adjacent crossbeam of no purlin photovoltaic support. The utility model provides a no purlin photovoltaic support and photovoltaic system through cancellation purlin to utilize the crossbeam to support photovoltaic module as main atress component, not only make main atress component turn into the stretch bending component by the member of buckling, and then full play steel draw the characteristic, reduced the risk of steel unstability, compare with prior art in addition, reduced the steel volume of using of photovoltaic support, reduced the manufacturing cost of photovoltaic support.

Description

Photovoltaic bracket without purlins and photovoltaic system

Technical Field

The utility model belongs to the technical field of the photovoltaic equipment technique and specifically relates to a no purlin photovoltaic support and photovoltaic system.

Background

Fig. 1 is a schematic structural diagram of a conventional photovoltaic system.

Referring to fig. 1, a prior art photovoltaic system includes a photovoltaic mount and a photovoltaic module 10; the photovoltaic support comprises a plurality of foundations 11, vertical columns 12, cross beams 13 and at least two purlines 14, wherein the foundations 11 are sequentially arranged along the X direction, the vertical columns 12 are fixed on the foundations 11, the cross beams 13 are installed at the upper ends of the vertical columns 12, and the purlines 14 are installed on all the cross beams 13; the cross beam 13 is vertical to the X direction, and the purlines are parallel to the X direction; the cross beam 13 is also connected to the upright 12 by means of diagonal rods 15. Wherein the photovoltaic module 10 is mounted on a purlin 14; for simplicity of illustration, only two photovoltaic modules 10 are shown in fig. 1.

The existing photovoltaic system adopts the photovoltaic support with the purlines, the stress characteristic of the purlines in use is a bending component, a steel structure has good tension characteristic, the purlines are easy to destabilize and damage under pressure, and in order to prevent the purlines from being destabilized under pressure, the stability of the photovoltaic support is improved by increasing the section size of the purlines in design, so that the occupation ratio of the purlines in the steel consumption of the photovoltaic support is up to 40-45%, the steel consumption of the photovoltaic support is larger, and the manufacturing cost of the photovoltaic support is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the utility model provides a do not have purlin photovoltaic support and photovoltaic system, reduce photovoltaic support's steel consumption.

The utility model provides a technical scheme that its technical problem adopted is:

the purlin-free photovoltaic bracket comprises a plurality of bracket units which are sequentially arranged along the X direction; the support unit comprises a foundation, an upright post fixed on the foundation and two cross beams arranged above the upright post and arranged side by side along the X direction, wherein the cross beams are perpendicular to the X direction, and two ends of each cross beam are respectively connected with the upright post through inclined rods.

Further, the cross beam has an inclination angle with the horizontal plane.

Furthermore, the diagonal rods are connected with the upper ends of the stand columns through anchor ears.

Furthermore, 4-8 press blocks are installed on the cross beam at intervals.

Further, the foundation is a concrete cast-in-place pile.

Further, the bracket unit further comprises a connecting rod installed between the two cross beams.

Furthermore, the number of the connecting rods is two, and the two connecting rods are respectively connected with the end parts of the cross beams.

Further, the distance between the adjacent cross beams is consistent.

A photovoltaic system comprising a photovoltaic module; the photovoltaic bracket without the purlin is also included; the photovoltaic module is installed on the adjacent cross beam of the purlin-free photovoltaic support.

Furthermore, at least two photovoltaic modules are installed on the adjacent cross beams of the photovoltaic bracket without the purlins.

The beneficial effects of the utility model are that: the embodiment of the utility model provides a no purlin photovoltaic support and photovoltaic system is through cancellation purlin to utilize the crossbeam to support photovoltaic module as main atress component, not only make main atress component turn into the stretch bending component by the member of buckling, and then full play steel draw the characteristic, reduced the risk of steel unstability, compare with prior art in addition, reduced the steel volume of using of photovoltaic support, reduced the manufacturing cost of photovoltaic support.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below; it is obvious that the drawings in the following description are only some of the embodiments described in the present application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.

FIG. 1 is a schematic diagram of a prior art photovoltaic system;

fig. 2 is a schematic structural diagram of a photovoltaic system provided by an embodiment of the present invention;

FIG. 3 is a schematic structural view of a rack unit in a photovoltaic rack without purlins;

fig. 4 is a side view of a rack unit in a photovoltaic rack without purlins.

The reference numbers in the figures are: 10-photovoltaic module, 11-foundation, 12-upright, 13-beam, 14-purlin, 15-diagonal rod, 20-photovoltaic module, 30-bracket unit, 301-foundation, 302-upright, 303-beam, 304-diagonal rod, 305-pressing block, 306-connecting rod.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 2 to 4, the photovoltaic bracket without purlin provided by the embodiment of the present invention includes a plurality of bracket units 30 arranged in sequence along the X direction; the support unit 30 comprises a base 301, a vertical column 302 fixed on the base 301, and two cross beams 303 arranged above the vertical column 302 and arranged in parallel along the X direction, wherein the cross beams 303 are perpendicular to the X direction, and two ends of the cross beams 303 are respectively connected with the vertical column 302 through inclined rods 304.

Referring to fig. 2, the purlin-free photovoltaic rack includes a plurality of rack units 30 for mounting photovoltaic modules 20, where a plurality refers to at least two; the plurality of rack units 30 are arranged in order in the X direction. The greater the number of rack units 30, the greater the number of photovoltaic modules 20 that can be mounted on a purlin-free photovoltaic rack.

Referring to fig. 2, 3 and 4, the rack unit 30 includes a base 301, a vertical column 302, two cross beams 303 and four diagonal rods 304. The foundation 301 may be a precast pile or a cast-in-place pile, and is fixed in the foundation, with the upper portion exposed out of the ground. In this embodiment, the foundation 301 is a concrete cast-in-place pile. When the foundations 301 of all the stand units 30 are fixed in the ground, it is ensured that all the foundations 301 are on the same straight line and the top elevations of the foundations 301 are consistent.

The upright column 302 is vertically arranged, and the lower end of the upright column 302 is fixedly connected with the foundation 301; preferably, the upright 302 is fixedly connected with the foundation 301 through bolts. The upright column 302 can adopt C-shaped steel, U-shaped steel, channel steel, I-shaped steel, steel pipes and the like; in this embodiment, the upright column 302 is made of a steel pipe.

The two cross beams 303 are arranged above the upright column 302 in parallel along the X direction, and the axial direction of each cross beam 303 is vertical to the X direction; the two ends of the cross beam 303 are respectively connected with the upright post 302 through inclined rods 304. The cross beam 303 and the diagonal rods 304 can be made of C-shaped steel, U-shaped steel, channel steel, I-shaped steel, steel pipes and the like; in this embodiment, the cross beam 303 is made of C-shaped steel, and the diagonal rod 304 is made of steel pipe.

Referring to fig. 2, a photovoltaic system provided by the embodiment of the present invention includes a photovoltaic module 20; the purlin-free photovoltaic bracket is also included; the photovoltaic module 20 is mounted on the adjacent cross beam 303 of the purlin-free photovoltaic bracket.

The photovoltaic module 20 is supported on two adjacent beams 303 and fixedly connected with the beams 303, so that the beams 303 are used as main stress members of the photovoltaic module 20. The two adjacent cross beams 303 may be two cross beams 303 in each rack unit 30, or two cross beams 303 between adjacent rack units 30. And at least two photovoltaic modules 20 are arranged on the adjacent cross beam 303 of the purlin-free photovoltaic support. In this embodiment, three photovoltaic modules 20 are mounted on the adjacent cross beam 303 of the purlin-free photovoltaic bracket. For simplicity of illustration, only four photovoltaic modules 20 are shown in fig. 2.

Comparative example:

referring to fig. 1, 2 × 30 photovoltaic modules are arranged on an existing photovoltaic support, that is, 30 photovoltaic modules are arranged along the X direction, and 2 photovoltaic modules are arranged perpendicular to the X direction, and purlins are required to have the following lengths: 4 × 39.67=158.68m, the length of the beam is 4.7 × 9=42.3m, and the lengths of the column and the inclined bar are: 4 × 9=36m; totaling to 236.98m. Converting the required steel consumption of each photovoltaic module into: 3.95m.

Example (b):

referring to fig. 2, 3 × 17 photovoltaic modules are arranged on a photovoltaic bracket without purlins, that is, 17 photovoltaic modules are arranged along the X direction, and 3 photovoltaic modules are arranged along the direction perpendicular to the X direction, and the length of the beam is required to be: 4.7 × 9 × 2=94.6m, the length of the upright post and the inclined rod is 4 × 9 × 2=72m; the total is 166.6m. The steel consumption converted into the steel consumption required by each photovoltaic module is as follows: 3.26m.

Can know through above-mentioned comparative example and embodiment, the embodiment of the utility model provides a no purlin photovoltaic support compares with current photovoltaic support, has reduced photovoltaic support's the steel volume of using, can practice thrift 15% steel volume of using minimum.

The embodiment of the utility model provides a no purlin photovoltaic support and photovoltaic system is through cancellation purlin to utilize crossbeam 303 to support photovoltaic module 20 as main atress component, not only make main atress component turn into the stretch bending component by the member of buckling, and then full play steel draw the characteristic, reduced the risk of steel unstability, compare with prior art in addition, reduced the steel volume of using of photovoltaic support, reduced the manufacturing cost of photovoltaic support.

Referring to fig. 4, the cross beam 303 has an inclination angle with respect to the horizontal plane, so that the photovoltaic module 20 can have an inclination angle with respect to the horizontal plane only by mounting the photovoltaic module 20 on the cross beam 303. For example, the inclination angle is 20 ° to 35 °, preferably 27 °.

Referring to fig. 4, the diagonal member 304 is connected to the upper end of the upright 302 by a hoop. The hoop is formed by combining a semicircular short hoop and a semicircular long hoop, the short hoop and the long hoop are connected through bolts and fixed at the upper end of the upright post 302, and the lower ends of the four inclined rods 304 are respectively connected with the long hoop through bolts. Therefore, the inclined rod 304 is more conveniently connected with the upright column 302, the inclined rod 304 is connected with the upper end of the upright column 302, the height of the upright column 302 can be reduced under the condition of the same installation elevation of the photovoltaic module 20, and the steel consumption of the photovoltaic support is further saved.

Referring to fig. 4, 4-8 pressing blocks 305 are mounted on the beam 303 at intervals. Through setting up briquetting 305 for compress tightly photovoltaic module 20 on crossbeam 303, realize being connected of photovoltaic module 20 and crossbeam 303, every photovoltaic module 20 compresses tightly on two crossbeams 303 through four briquetting 305 respectively. In the purlin-free photovoltaic support, edge pressing blocks are arranged on two cross beams 303 positioned at two sides along the X direction and used for pressing one photovoltaic module 20 on the cross beams 303; and the other cross beams 303 are provided with middle pressing blocks for simultaneously pressing the two photovoltaic modules 20 on the same cross beam 303.

Referring to fig. 2 and 3, the rack unit 30 further includes a connecting rod 306 installed between the two cross members 303. The connecting rod 306 only serves to connect the two beams 303 together, so as to improve the rigidity and stability of the bracket unit 30, and does not support the photovoltaic module 20 and bear the load of the photovoltaic module 20. In this embodiment, the connecting rod 306 is an angle steel. Preferably, the number of the connecting rods 306 is two, and the two connecting rods 306 are respectively connected with the end portions of the cross beam 303.

The distance between adjacent beams 303 should be consistent with the dimension of the photovoltaic module 20 along the X direction, so as to ensure that two sides of the photovoltaic module 20 can be supported on two adjacent beams 303. In order to mount the same specification of photovoltaic modules 20 on the photovoltaic support, it is preferable that the distance between the adjacent beams 303 is uniform, see fig. 2.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The photovoltaic bracket without the purlins is characterized by comprising a plurality of bracket units (30) which are sequentially arranged along the X direction; the support unit (30) comprises a base (301), a stand column (302) fixed on the base (301), and two cross beams (303) arranged above the stand column (302) and arranged in parallel along the X direction, wherein the cross beams (303) are perpendicular to the X direction, and two ends of the cross beams (303) are respectively connected with the stand column (302) through oblique rods (304).

2. Purlinless photovoltaic support according to claim 1, wherein the cross beam (303) has an inclination to the horizontal.

3. Purlin-free photovoltaic support according to claim 1, wherein the diagonal rods (304) are connected to the upper ends of the columns (302) by hoops.

4. Purlin-free photovoltaic support according to claim 1, wherein 4-8 pressing blocks (305) are mounted on the cross beam (303) at intervals.

5. Purlin-free photovoltaic bracket according to claim 1, wherein the foundation (301) is a concrete cast-in-place pile.

6. Purlinless photovoltaic support according to claim 1, wherein the support unit (30) further comprises a connecting rod (306) mounted between the two cross beams (303).

7. Purlin-free photovoltaic support according to claim 6, wherein the number of the connecting rods (306) is two, and the two connecting rods (306) are respectively connected with the ends of the cross beams (303).

8. Purlin-free photovoltaic support according to claim 1, wherein the distance between adjacent beams (303) is uniform.

9. A photovoltaic system comprising a photovoltaic module (20); the purlin-free photovoltaic bracket of any one of claims 1-8; the photovoltaic module (20) is installed on an adjacent cross beam (303) of the purlin-free photovoltaic support.

10. The photovoltaic system of claim 9, wherein at least two photovoltaic modules (20) are mounted on adjacent beams (303) of the purlin-free photovoltaic support.

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