CN220365908U

CN220365908U - Vibration suppression device of flexible photovoltaic bracket

Info

Publication number: CN220365908U
Application number: CN202321109547.6U
Authority: CN
Inventors: 刘海波; 姜军倪; 甘乐; 陶铁铃; 邹尤; 徐峰; 党莹颖; 刘玉亮; 袁博; 付文军
Original assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd
Current assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2024-01-19
Anticipated expiration: 2033-05-10

Abstract

The utility model discloses a vibration suppression device of a flexible photovoltaic bracket, and relates to the technical field of solar energy application. The vibration-damping device comprises two upper bearing cables, a lower bearing cable and a vibration-damping device, wherein both ends of the two upper bearing cables and both ends of the lower bearing cable are connected with the top of a stand column through steel beams, and a plurality of web members are connected between the upper bearing cables and the lower bearing cables; the vibration suppression device comprises a sling, a mass block and a damping piece positioned at the bottom of the mass block; the top of the mass block is connected with an upper bearing rope through a sling; the bottom of the damping piece is connected with the lower bearing rope. The vibration response of the whole flexible photovoltaic support system can be effectively inhibited, the risk of hidden cracking of the photovoltaic module is reduced, the service life of the photovoltaic module is prolonged, and the fatigue damage of the whole structure system is reduced.

Description

Vibration suppression device of flexible photovoltaic bracket

Technical Field

The utility model relates to the technical field of solar energy application, in particular to a vibration suppression device of a flexible photovoltaic bracket.

Background

In recent years, the development of the traditional rigid photovoltaic bracket is gradually limited due to factors such as wide occupied area, higher field flatness requirement and the like, and a flexible photovoltaic bracket structure for installing a photovoltaic module on a prestressed cable is used as a novel photovoltaic bracket structure form, so that the novel photovoltaic bracket structure has the advantages of large span, land resource saving, wide application range and the like; the application scene of photovoltaic power generation development can be greatly increased by adopting the large-span flexible photovoltaic support structure, and the achievement of a power assisting double-carbon target is realized, so that the power assisting double-carbon support structure is increasingly favored by engineers.

However, the existing suspension cable flexible photovoltaic support structure belongs to a flexible structure, and is easy to generate larger vibration under the action of external wind load, so that the appearance and durability of the whole structure system are affected, in addition, the risk of hidden cracking of a photovoltaic panel is increased due to larger amplitude, and the service life of the photovoltaic panel is affected; therefore, in order to improve the safety of the flexible photovoltaic support system, the development of related vibration suppression and buffering technologies is necessary.

The patent name of elastic inclined pulling seat (application number: CN 201520785829.7) of the flexible photovoltaic bracket controls the vibration response of the whole flexible photovoltaic bracket structure system by adopting a spring (or other dampers), but damping mechanisms such as the spring and the like are easy to fatigue damage in use, and the damping mechanisms such as the spring and the like have complex structure, higher price, poor general weather resistance and higher maintenance cost.

The damping mechanism (application number 201920489874.6) suitable for the fishing light integrated photovoltaic bracket has a simple structure and low cost, but adopts water resistance to perform vibration reduction, and has limited vibration suppression effect compared with other dampers.

Therefore, the development of an economic and efficient vibration suppression device for suppressing wind vibration response of a flexible photovoltaic support structure ensures safety and reliability of a photovoltaic module and reduces the risk of hidden cracking of the module, and is a key engineering technical problem to be solved currently urgently.

Disclosure of Invention

The utility model aims to overcome the defects of the background art and provide the vibration suppression device of the flexible photovoltaic bracket.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a vibration suppression device for a flexible photovoltaic support, characterized by: the vibration-damping device comprises two upper bearing cables, a lower bearing cable and a vibration-damping device, wherein both ends of the two upper bearing cables and both ends of the lower bearing cable are connected with the top of an upright post through steel beams, and a plurality of web members are connected between the upper bearing cables and the lower bearing cables;

the vibration suppression device comprises a sling, a mass block and a damping piece positioned at the bottom of the mass block; the top of the mass block is connected with an upper bearing rope through a sling; the bottom of the damping piece is connected with the lower bearing cable;

the two upper bearing ropes are provided with photovoltaic modules; the lower bearing rope is concave.

In the above technical solution, the damping member is a spring connector.

In the above technical solution, the vibration suppression device is installed at the center of the upper and lower load-bearing cables.

In the above-described aspect, a plurality of the vibration suppressing devices may be arranged to be installed between the upper and lower load-bearing cables.

In the above technical solution, the mass block is a sphere or a hexahedron.

In the above technical solution, one or two lower bearing cables are adopted.

Compared with the prior art, the utility model has the following advantages:

when the whole structural system vibrates under the action of wind load, the mass blocks are driven to vibrate together, and the inertial force generated by the mass blocks is reacted to the structure, so that the vibration of the whole structural system is inhibited, and the fatigue damage of the whole structural system is reduced.

1) The vibration response of the whole flexible photovoltaic support system can be effectively inhibited, the risk of hidden cracking of the photovoltaic module is reduced, the service life of the photovoltaic module is prolonged, and the fatigue damage of the whole structure system is reduced.

2) The vibration suppression device has the advantages of simple structure, convenient installation, better economy and good engineering practical prospect.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a cross-sectional view at A-A in fig. 1 when the lower carrier cable is one.

Fig. 3 is a cross-sectional view at A-A in fig. 1 when there are two lower load-bearing cables.

Detailed Description

The following detailed description of the utility model is, therefore, not to be taken in a limiting sense, but is made merely by way of example. While making the advantages of the present utility model clearer and more readily understood by way of illustration.

As can be seen with reference to the accompanying drawings: a vibration suppression device for a flexible photovoltaic support, characterized by: the vibration suppression device comprises two upper bearing cables 1, a lower bearing cable 2 and a vibration suppression device 3, wherein both ends of the two upper bearing cables 1 and both ends of the lower bearing cable 2 are connected with the top of a stand column 4 through steel beams, and a plurality of web members 5 are connected between the upper bearing cable 1 and the lower bearing cable 2;

the vibration suppression device 3 comprises a sling 6, a mass block 31 and a damping piece 32 positioned at the bottom of the mass block 31; the top of the mass block 31 is connected with the upper bearing rope 1 through a sling 6; the bottom of the damping piece 32 is connected with the lower bearing cable 2;

the two upper bearing ropes 1 are provided with photovoltaic modules 7; the lower bearing rope 2 is concave.

The damping member 32 is a spring connector.

The vibration suppressing device 3 is installed at the center of the upper and lower load-bearing cables 1 and 2.

A plurality of said vibration suppression devices 3 may be arranged to be mounted between the upper and lower load-bearing cables 1, 2.

The mass block 31 is a sphere or hexahedron, and the mass block 31 can be made of steel or concrete.

One or two lower bearing ropes 2 are adopted.

In actual use, the two upper bearing ropes 1 are two separated flexible ropes, the two upper bearing ropes 1 are used for installing the photovoltaic module 7 after being tensioned and prestressed, and the applied prestress is finally transmitted to the upright post 4; the two ends of the lower bearing cable 2 are also connected with the upright posts 4 through steel beams by tensioning prestressing force.

The upper bearing rope 1 and the lower bearing rope 2 are connected through the web member 5, so that the rigidity and stability of the whole bracket system are improved.

The damping member 32 serves as a damping member and may be replaced by a spring-loaded connector or other damper.

The slings 6 are steel ropes or other ropes of sufficient strength.

For flexible photovoltaic support structures with different spans, the weight of the mass block 31 and the length of the sling 6 thereof need to be optimized and adjusted.

Other non-illustrated parts are known in the art.

Claims

1. The utility model provides a vibration suppression device of flexible photovoltaic support, includes two upper load-bearing cable (1), lower load-bearing cable (2), two install photovoltaic module (7), its characterized in that on upper load-bearing cable (1): the vibration suppression device (3) is further included, two ends of the upper bearing rope (1) and two ends of the lower bearing rope (2) are connected with the top of the upright post (4) through steel beams, and a plurality of web members (5) are connected between the upper bearing rope (1) and the lower bearing rope (2);

the vibration suppression device (3) comprises a sling (6), a mass block (31) and a damping piece (32) positioned at the bottom of the mass block (31); the top of the mass block (31) is connected with the upper bearing rope (1) through a sling (6); the bottom of the damping piece (32) is connected with the lower bearing cable (2);

the lower bearing rope (2) is concave.

2. The vibration suppression device for a flexible photovoltaic bracket according to claim 1, wherein: the damping member (32) is a spring connector.

3. The vibration suppression device for a flexible photovoltaic bracket according to claim 2, wherein: the vibration suppression device (3) is arranged at the center of the upper bearing rope (1) and the lower bearing rope (2).

4. The vibration suppression device for a flexible photovoltaic bracket according to claim 1, wherein: a plurality of the vibration suppressing devices (3) are arranged, the vibration suppressing devices (3) being mounted between the upper load-bearing cable (1) and the lower load-bearing cable (2).

5. The vibration suppression device for a flexible photovoltaic bracket according to claim 1, wherein: the mass block (31) is a sphere or hexahedron.

6. The vibration suppression device for a flexible photovoltaic bracket according to claim 4, wherein: one or two lower bearing ropes (2) are adopted.