AU2021104643A4

AU2021104643A4 - Continuous purlin component holder and photovoltaic power station holder

Info

Publication number: AU2021104643A4
Application number: AU2021104643A
Authority: AU
Inventors: Erbin LI; Haifeng Wei; Shuangzheng XU
Original assignee: Sungrow Renewables Development Co Ltd
Current assignee: Sungrow Renewables Development Co Ltd
Priority date: 2020-11-09
Filing date: 2021-07-28
Publication date: 2021-09-23
Anticipated expiration: 2029-07-28
Also published as: CN213693542U; AU2021104643B4

Abstract

The present disclosure discloses a continuous purlin component holder and a photovoltaic power station holder, where the continuous purlin component holder includes a purlin and a strengthening component. There are at least two purlins, where adjacent purlins are connected in sequence, and the strengthening component is installed at a peak position of a bending moment of the purlin, where the peak position of the bending moment of the purlin is a position of the purlin, which bears the bending moment, and an absolute value of a bending moment of the position is greater than absolute values of bending moments of the purlin on adjacent left and right sides of the position. In the continuous purlin component holder according to the present disclosure, the strengthening component is provided at a peak position of the bending moment of the purlin, thereby increasing the bearing capacity of the continuous purlins, so that the strength of the purlin is fully utilized, thereby improving the strength utilization rate of the continuous purlin component holder. Figure 7 - 4/4-

Description

Figure 7

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CONTINUOUS PURLIN COMPONENT HOLDER AND PHOTOVOLTAIC POWER STATION HOLDER FIELD

[0001] The present disclosure relates to the technical field of module support, in particular to a continuous purlin component holder. The present disclosure further relates to a photovoltaic power station holder including the continuous purlin component holder.

BACKGROUND

[0002] As a conventional support structure, a purlin is often applied to a slope, a roof and an inclined beam that need to be supported. For example, continuous purlins are adopted in a current large-scale photovoltaic ground power station to support module, and the length of the continuous purlins ranges from 15 meters to 25 meters. Since the length of a single purlin is approximately 5 meters, the purlins need to be spliced during installation.

[0003] As shown in Figure 1 and Figure 2, a conventional continuous purlin component holder adopts a method of covering channel steel on the outside of the purlin. Two adjacent purlins 01 are connected through a purlin connecting element 02, and the purlin connecting element 02 is installed on the purlin 01 through a purlin locking element 03.

[0004] However, the purlin connecting element 02 only realizes a splicing of the two adjacent purlins 01, but the splicing does not increase the strength of the continuous purlins 01, resulting in a low utilization rate of the strength of the purlin 01.

[0005] Therefore, those skilled in the art have a strong desire is how to improve the strength utilization rate of the purlin.

SUMMARY

[0006] An object of the present disclosure is to provide a continuous purlin component holder to improve the strength utilization rate of a purlin. Another object of the present disclosure is to provide a photovoltaic power station holder including the above continuous purlin component holder.

[0007] In order to achieve the above objects, a continuous purlin component holder is provided according to the present disclosure, including a purlin (1) and a strengthening component installed at a peak position of a bending moment of the purlin, where a number of the purlin is at least two, adjacent purlins are connected in sequence, and the peak position of the bending moment of the purlin is a position of the purlin, which bears the bending moment, and an absolute value of a bending moment of the position is greater than absolute values of bending moments of the purlin on adjacent left and right sides of the position.

[0008] Preferably, the strengthening component includes a first strengthening component installed at a peak position of a positive bending moment of the purlin.

[0009] Preferably, the strengthening component includes a second strengthening component installed at a peak position of a negative bending moment of the purlin.

[0010] Preferably, the strengthening component includes a strengthening plate fitted to a side wall of the purlin and a first locking element for connecting the strengthening plate and the purlin.

[0011] Preferably, multiple of the first locking elements are provided, which are respectively installed on a web and a lower flange plate of the purlin.

[0012] Preferably, the strengthening plate is a plate structure that is sleeved on an inner side of the purlin and is fitted to the inner wall of the purlin.

[0013] Preferably, the plate structure is a C-shaped plate body.

[0014] Preferably, the strengthening plate is an L-shaped plate body, and the L-shaped plate body is abutted against a side surface and a bottom surface of the purlin.

[0015] Preferably, the strengthening plate is sleeved on an inner side of the purlin, or the strengthening plate is arranged on an outside of the purlin.

[0016] Preferably, the continuous purlin component holder further includes a purlin connecting element for connecting two adjacent purlins, where the purlin connecting element and a plate body of the strengthening component are an integrated structure.

[0017] Preferably, multiple of the strengthening components and multiple of the peak positions of the bending moments are provided in a one-to-one correspondence.

[0018] A photovoltaic power station holder, including a support frame and a continuous purlin component holder installed on the support frame, where the continuous purlin component holder is the continuous purlin component holder according to any one described above.

[0019] In the above technical solution, the continuous purlin component holder according to the present disclosure includes a purlin and a strengthening component. There are at least two purlins, where adjacent purlins are connected in sequence, and the strengthening component is installed at a peak position of the bending moment of the purlin.

[0020] It can be seen from the above description that in the continuous purlin component holder according to the present disclosure, the strengthening component is provided at a peak position of a bending moment of the purlin, thereby increasing the bearing capacity of the continuous purlins, so that the strength of the purlin is fully utilized, thereby improving the strength utilization rate of the continuous purlin component holder.

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] For more clearly illustrating embodiments of the present disclosure or the technical solutions in the conventional technology, drawings referred to for describing the embodiments or the conventional technology will be briefly described hereinafter. Apparently, drawings in the following description are only examples of the present disclosure, and for the person skilled in the art, other drawings may be obtained based on the set drawings without any creative efforts.

[0022] Figure 1 is a structural schematic diagram of a connection position of two adjacent purlins in a conventional continuous purlin component holder;

[0023] Figure 2 is a schematic diagram of a bending moment of the conventional continuous purlin component holder;

[0024] Figure 3 is a schematic diagram of a bending moment of a continuous purlin component holder according to an embodiment of the present disclosure;

[0025] Figure 4 is a schematic diagram of a bending moment of another continuous purlin component holder according to an embodiment of the present disclosure;

[0026] Figure 5 is an installation position diagram of a strengthening component in a continuous purlin component holder according to an embodiment of the present disclosure;

[0027] Figure 6 is an enlarged view of an installation position of the strengthening component shown in Figure 5; and

[0028] Figure 7 is an installation position diagram of another strengthening component in a continuous purlin component holder according to an embodiment of the present disclosure.

[0029] Reference numerals in Figures 1 to 7:

01 purlin, 02 purlin connecting element,

03 purlin locking element;

1 purlin, 2 purlin bracket,

3 inclined supporting beam, 4 first locking element,

5 second strengthening component, 6 first strengthening component,

7 C-shaped plate body, 8 L-shaped plate body.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] A core of the present disclosure is to provide a continuous purlin component holder, so as to improve the strength utilization rate of the purlin. Another core of the present disclosure is to provide a photovoltaic power station holder including the above continuous purlin component holder.

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Reference is made to Figure 2 to Figure 7.

[0033] In a specific embodiment, a continuous purlin component holder according to a specific embodiment of the present disclosure includes a purlin 1 and a strengthening component. There are at least two purlins, where adjacent purlins are connected in sequence, and the strengthening component is installed at a peak position of a bending moment of the purlin, where the peak position of the bending moment of the purlin is a position of the purlin, which bears the bending moment, and an absolute value of a bending moment of the position is greater than absolute values of bending moments of the purlin on adjacent left and right sides of the position. Specifically, when there are multiple bending moment peaks on the continuous purlin component holder, preferably, multiple strengthening components are provided, and each peak position of the bending moment of the purlin is provided with one strengthening component.

[0034] Specifically, two purlins 1 are connected through a purlin connecting element, and the purlin connecting element is installed on the purlin 1 through a purlin locking element. Preferably, the purlin connecting element is sleeved on an inner side of the purlin 1. Specifically, the purlin connecting element may be in a U-shape, an L-shape or other shapes adapted according to an inner shape of the purlin 1.

[0035] In a specific embodiment, the strengthening component includes a first strengthening component 6 installed at a peak position of a positive bending moment of the purlin 1.

[0036] In a specific embodiment, the strengthening component includes a second strengthening component 5 installed at a peak position of a negative bending moment of the purlin 1.

[0037] Preferably, the purlin 1 is provided with a first strengthening component 6 and a second strengthening component 5 at the same time. The first strengthening component 6 and the second strengthening component 5 may have the same structure, but the installation positions are different.

[0038] As shown in Figures 3 and 4, areas with larger bending moments are strengthened according to a bending moment envelope diagram of the continuous purlins.

[0039] Specifically, there may be three, four or at least five adjacent purlins 1 connected to each other. As shown in Figures 3 and 4, three purlins 1, specifically three continuous purlins 1 are taken as an example to illustrate the implementation process of the present disclosure. As shown in Figure 2, a bending moment distribution of three-span continuous purlins 1 shows obviously uneven. A negative bending moment M1 of the middle support is the largest, a bending moment M2 in the middle of the side-span is the second, and a bending moment M3 in the middle of the middle-span is the smallest. Specifically, M1 is approximately 1.25 times that of M2, and M1 is approximately 4 times that of M3. And the strengthening component is provided at a peak position of a bending moment of the purlin, that is, a position that has a larger bending moment is strengthened, thereby increasing the bearing capacity of the continuous purlins, so that the strength of the purlin is fully utilized, thereby improving the strength utilization rate of the continuous purlin component holder. Compared with a case that a weak position of the purlin 1 is strengthened by increasing a thickness of the entire purlin 1, the amount of steel used to manufacture the purlin 1 is reduced according to the present disclosure.

[0040] In a specific embodiment, the strengthening component includes a strengthening plate fitted to a side wall of the purlin 1 and a first locking element 4 for connecting the strengthening plate and the purlin 1. Specifically, the strengthening plate is preferably a metal plate, which may be a steel plate. In order to facilitate disassembly and assembly, preferably, the first locking element 4 is a threaded fastener, which specifically may be a bolt.

[0041] Specifically, the strengthening plate is a plate structure that is sleeved on the inner side of the purlin 1 and fitted to the inner wall of the purlin 1. Specifically, the strengthening plate may be a plate structure with uniform thickness.

[0042] Normally the purlin 1 is a C-shaped structure. Preferably, the plate body structure is a C-shaped plate body 7, which is a structural element that an outer dimension of the strengthening plate is the same as an inner dimension of the purlin 1. Specifically, the C-shaped plate body 7 may be C-shaped steel, and the wall thickness of the C-shaped steel may be determined according to a strengthening target of the cross section. A bolt connection hole is opened at a connection position of the strengthening plate and the purlin 1. The connecting element and the purlin 1 are connected through the first locking element 4, which is installed on a web and a lower flange of the C-shaped steel. The number and arrangement of the first locking element 4 should be determined in accordance with calculation requirements and structure requirements of Steel Structure Design Standard, which will not be limited in the present disclosure.

[0043] In another embodiment, the strengthening plate is an L-shaped plate body 8, which is abutted against a side surface and a bottom surface of the purlin 1. As shown in Figure 7, angle steel is used as a strengthening plate to be fixed to a web and a lower flange plate of the purlin 1.

[0044] During specific installation, the strengthening plate may be sleeved on the inner side of the purlin 1, or, as shown in Figure 7, the strengthening plate is arranged on the outside of the purlin 1.

[0045] For a strengthening area of the purlin 1 shown in Figure 3, a length of the strengthening plate should be determined according to a bending moment envelope diagram shown in Figure 2, in which the bending moment corresponding to an end of the strengthening area of the purlin 1 should not be greater than 60%-80% of the maximum bending moment M1. Specifically, the bending moment corresponding to an end of the strengthening area of the purlin 1 should not be greater than 70% of the maximum bending moment M1.

[0046] As shown in Figure 5, since a splicing point is the weakest part of the continuous purlins 1, the splicing point should be set at a position with the minimum bending moment according to the bending moment diagram.

[0047] As shown in Figure 3, in a specific implementation, if the splicing point is very close to an end of the strengthening area, the connecting element and the strengthening plate may also be integrated as a whole, and the purlin connecting element and the plate body of the strengthening component may be an integrated structure. Specifically, the purlin 1 performs supporting work through an inclined supporting beam 3.

[0048] In the present disclosure, the strengthening component is provided, so that the shape of the strengthening plate and the connection form between the strengthening plate and the purlin 1 can better realize that the strengthening plate and the purlin 1 may be forced synergistically, thereby improving the strength of the purlin 1 at a position with a larger bending. The overall structure is simple and easy to install.

[0049] A photovoltaic power station holder is provided according to the present disclosure, including a support frame and a continuous purlin component holder installed on the support frame, where the continuous purlin component holder is the continuous purlin component holder according to any one described above. The specific structure of the continuous purlin component holder is described above. The present disclosure includes the above continuous purlin component holder, which also has the above technical effects. Specifically, the supporting frame may be an inclined supporting beam 3.

[0050] The embodiments in the description are described in a progressive manner. Each of the embodiments mainly focuses on its differences from other embodiments, and reference may be made among these embodiments with respect to the same or similar parts.

[0051] The above illustration of the disclosed embodiments can enable those skilled in the art to implement or use the present application. Various modifications to the embodiments are apparent to the person skilled in the art, and the general principle herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments described herein, but should be in accordance with the broadest scope consistent with the principle and novel features disclosed herein.

Claims

1. A continuous purlin component holder, comprising a purlin (1) and a strengthening component installed at a peak position of a bending moment of the purlin (1), wherein a number of the purlin (1) is at least two, adjacent purlins are connected in sequence, and the peak position of the bending moment of the purlin (1) is a position of the purlin (1), which bears the bending moment, and an absolute value of a bending moment of the position is greater than absolute values of bending moments of the purlin (1) on adjacent left and right sides of the position.

2. The continuous purlin component holder according to claim 1, wherein the strengthening component comprises a first strengthening component (6) installed at a peak position of a positive bending moment of the purlin (1).

3. The continuous purlin component holder according to claim 1, wherein the strengthening component comprises a second strengthening component (5) installed at a peak position of a negative bending moment of the purlin (1).

4. The continuous purlin component holder according to claim 1, wherein the strengthening component comprises a strengthening plate fitted to a side wall of the purlin (1) and a first locking element (4) for connecting the strengthening plate and the purlin (1).

5. The continuous purlin component holder according to claim 4, wherein a plurality of the first locking elements (4) are provided, which are respectively installed on a web and a lower flange plate of the purlin (1).

6. The continuous purlin component holder according to claim 4, wherein the strengthening plate is a plate structure that is sleeved on an inner side of the purlin (1) and is fitted to an inner wall of the purlin (1).

7. The continuous purlin component holder according to claim 6, wherein the plate structure is a C-shaped plate body (7).

8. The continuous purlin component holder according to claim 4, wherein the strengthening plate is an L-shaped plate body (8), and the L-shaped plate body (8) is abutted against a side surface and a bottom surface of the purlin (1).

9. The continuous purlin component holder according to claim 8, wherein the strengthening plate is sleeved on an inner side of the purlin (1), or the strengthening plate is arranged on an outside of the purlin (1).

10. The continuous purlin component holder according to claim 1, further comprising a purlin connecting element for connecting two adjacent purlins (1), wherein the purlin connecting element and a plate body of the strengthening component are an integrated structure.

11. The continuous purlin component holder according to any one of claims 1 to 10, wherein a plurality of the strengthening components and a plurality of the peak positions of the bending moments are provided in a one-to-one correspondence.

12. A photovoltaic power station holder, comprising a support frame and a continuous purlin component holder installed on the support frame, wherein the continuous purlin component holder is the continuous purlin component holder according to any one of claims 1 to 11.

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