阅读说明：本技术 一种增加屋顶光伏安全性的装置 (Device for increasing photovoltaic safety of roof ) 是由 李芊 郭辰 张立英 张国 张庆 李家川 邵振州 程瑜 于 2021-07-20 设计创作，主要内容包括：本发明公开的一种增加屋顶光伏安全性的装置,属于光伏发电技术领域。包括设在光伏板边沿与屋顶之间的隔断装置,相对侧的隔断装置之间具有能够使空气流通的通道。通过在光伏板与屋顶之间设置隔断装置,在建筑物着火时减少火焰区域氧气的输送量,降低燃烧当量比,进而限制火焰的传播速度,降低安装光伏板产生的限制空间带来的烟囱效应,提高建筑的安全性。同时,相对侧的隔断装置之间具有能够使空气流通的通道,能够使一定的自然风进入光伏板与屋顶之间进行换热,降低光伏板表面温度,提高发电效率。(The invention discloses a device for improving the photovoltaic safety of a roof, and belongs to the technical field of photovoltaic power generation. The solar photovoltaic panel comprises partition devices arranged between the edge of the photovoltaic panel and a roof, and channels enabling air to circulate are arranged between the partition devices on the opposite sides. Through set up the off device between photovoltaic board and roof, reduce the regional oxygen's of flame transport volume when the building catches fire, reduce the combustion equivalence ratio, and then limit the propagation speed of flame, reduce the chimney effect that the restriction space that the installation photovoltaic board produced brought, improve the security of building. Meanwhile, a channel capable of enabling air to circulate is arranged between the partition devices on the opposite sides, certain natural wind can enter the photovoltaic panel and the roof to exchange heat, the surface temperature of the photovoltaic panel is reduced, and the power generation efficiency is improved.)

1. A device for increasing the photovoltaic safety of a roof is characterized by comprising partition devices arranged between the edge of a photovoltaic panel (1) and the roof (2), wherein a channel for enabling air to circulate is arranged between the partition devices on the opposite side; the partition devices comprise a first partition device (3), a second partition device (4) and partition devices (5) on two sides; the first partition device (3) and the second partition device (4) are of net structures, the upper end and the lower end of the first partition device (3) are respectively connected with the upper edge of the photovoltaic panel (1) and the roof (2), and the upper end and the lower end of the second partition device (4) are respectively connected with the lower edge of the photovoltaic panel (1) and the roof (2).

2. Device for increasing the photovoltaic safety of roofs according to claim 1, characterized in that the length of the first and second partition means (3, 4) is greater than the length of the upper and lower edges of the photovoltaic panel (1), the height being greater than the height of the photovoltaic panel (1).

3. The device for increasing the photovoltaic safety of the roof is characterized in that the first partition device (3) and the second partition device (4) are of a net structure with a sparse net and a dense net arranged at intervals, the sparse net of the first partition device (3) is opposite to the dense net of the second partition device (4), and the dense net of the first partition device (3) is opposite to the sparse net of the second partition device (4).

4. The device for increasing the photovoltaic safety of roofs according to claim 1, wherein the roof (2) is horizontal, the two side partition devices (5) are of a net structure, and the upper and lower ends of the two side partition devices (5) are respectively connected with the two side edges of the photovoltaic panel (1) and the roof (2).

5. Device for increasing the photovoltaic safety of roofs according to claim 4, characterized in that the length of the two side partitions (5) is greater than the length of the two side edges of the photovoltaic panel (1) and the height is greater than the height of the photovoltaic panel (1).

6. The device for increasing the photovoltaic safety of roofs according to claim 1, wherein the roof (2) is inclined, the two side partitions (5) are a plurality of baffles arranged at intervals, and the bottom edges of the baffles are connected with the roof (2).

7. Device for increasing the photovoltaic safety of roofs according to claim 6, characterized by the fact that the top edge of the baffle is parallel and gapped to the lower surface of the two side edges of the photovoltaic panel (1).

8. The device for increasing the photovoltaic safety of the roof as claimed in claim 6, wherein the baffles are arranged at equal intervals, and the interval is 5-50 cm.

9. Device for increasing the photovoltaic safety of roofs according to claim 6, characterized by the fact that the baffles of the two side partitions (5) are facing the space of the other side.

Technical Field

The invention belongs to the technical field of photovoltaic power generation, and particularly relates to a device for improving the photovoltaic safety of a roof.

Background

In recent years, with the rapid development of the photovoltaic industry, the distributed photovoltaic becomes a key direction in market investment by virtue of the characteristic of high yield, and many enterprises or individuals choose to install the roof photovoltaic to reduce the power consumption of buildings and improve the economy.

However, it has been proved in research that the installation of the photovoltaic panel on the roof can reduce the safety of the building, the limited space formed between the photovoltaic panel and the roof can easily cause the chimney effect, when the roof of the building catches fire, the flame can extend along the surface of the roof, the heat transfer quantity of the flame to the building body is increased, the incoming flow pressure in the limited space is increased, the propagation speed of the flame is greatly increased, the overall fireproof performance of the building is reduced, and great potential safety hazard is brought.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a device for increasing the safety of rooftop photovoltaic, which can reduce the negative impact of photovoltaic panels on the fire protection performance of a building in case of fire, and increase the overall safety.

The invention is realized by the following technical scheme:

the invention discloses a device for increasing the photovoltaic safety of a roof, which comprises partition devices arranged between the edge of a photovoltaic panel and the roof, wherein a channel for enabling air to circulate is arranged between the partition devices on the opposite sides; preferably, the partition device comprises a first partition device, a second partition device and two side partition devices; the first partition device and the second partition device are of net structures, the upper end and the lower end of the first partition device are respectively connected with the upper edge of the photovoltaic panel and the roof, and the upper end and the lower end of the second partition device are respectively connected with the lower edge of the photovoltaic panel and the roof.

Further preferably, the lengths of the first partition device and the second partition device are greater than the lengths of the upper edge and the lower edge of the photovoltaic panel, and the height of the first partition device and the height of the second partition device is greater than the height of the photovoltaic panel.

Further preferably, the first partition device and the second partition device are both of a mesh structure with a sparse mesh and a dense mesh arranged at intervals, the sparse mesh of the first partition device faces the dense mesh of the second partition device, and the dense mesh of the first partition device faces the sparse mesh of the second partition device.

Further preferably, the roof is horizontal, the two side partition devices are of a net structure, and the upper end and the lower end of each of the two side partition devices are respectively connected with the edges of the two sides of the photovoltaic panel and the roof.

Further preferably, the length of the two side partition devices is greater than the length of the edges of the two sides of the photovoltaic panel, and the height of the two side partition devices is greater than the height of the photovoltaic panel.

Further preferably, the roof is inclined, the partition devices on the two sides are a plurality of baffle plates arranged at intervals, and the bottom edges of the baffle plates are connected with the roof.

Further preferably, the top edge of the baffle is parallel to the lower surface of the two side edges of the photovoltaic panel, and a gap exists between the top edge of the baffle and the lower surface of the two side edges of the photovoltaic panel.

Further preferably, the baffles are arranged at equal intervals, and the interval is 5-50 cm.

The baffle on one side of the partition devices on the two sides is opposite to the interval on the other side.

Compared with the prior art, the invention has the following beneficial technical effects:

according to the device for increasing the photovoltaic safety of the roof, disclosed by the invention, the partition device is arranged between the photovoltaic panel and the roof, so that the oxygen conveying amount of a flame area is reduced when a building catches fire, the combustion equivalence ratio is reduced, the propagation speed of flame is further limited, the chimney effect caused by the limited space generated by mounting the photovoltaic panel is reduced, and the building safety is improved. Meanwhile, a channel capable of enabling air to circulate is arranged between the partition devices on the opposite sides, certain natural wind can enter the photovoltaic panel and the roof to exchange heat, the surface temperature of the photovoltaic panel is reduced, and the power generation efficiency is improved. The partition device comprises a first partition device, a second partition device and two side partition devices, is simple in structure, can be conveniently installed on the roof, and is well coupled with the limited space between the roof and the photovoltaic panel. The first partition device and the second partition device which are of the net structures can effectively prevent sundries from accumulating below the photovoltaic panel and enable natural wind to flow through the lower surface of the photovoltaic panel, the surface temperature of the photovoltaic panel is reduced, and the power generation efficiency is improved.

Furthermore, the lengths of the first partition device and the second partition device are larger than the lengths of the upper edge and the lower edge of the photovoltaic panel, and the heights of the first partition device and the second partition device are larger than the height of the photovoltaic panel, so that the space between the roof and the upper edge and the lower edge of the photovoltaic panel can be completely covered.

Furthermore, the first partition device and the second partition device are both of a mesh structure with spaced sparse meshes and dense meshes, and the sparse meshes and the dense meshes of the first partition device and the dense meshes of the second partition device are staggered and opposite, so that the chimney effect is further reduced while certain air flow is ensured.

Furthermore, when the roof is horizontal, the two side partition devices are also of a net structure, and can well block sundries on the two sides.

Furthermore, the length of the two side partition devices is greater than that of the edges of the two sides of the photovoltaic panel, and the height of the two side partition devices is greater than that of the photovoltaic panel, so that gaps between the roof and the two sides of the photovoltaic panel can be completely covered.

Furthermore, when the roof is inclined, sundries cannot enter from two sides, the chimney effect can be effectively reduced by adopting a plurality of baffles arranged at intervals, and the cost and the installation difficulty are reduced.

Furthermore, the top edge of the baffle is parallel to the lower surfaces of the edges of the two sides of the photovoltaic panel, and a gap exists between the top edge of the baffle and the lower surfaces of the edges of the two sides of the photovoltaic panel, so that air can uniformly enter the lower plane of the photovoltaic panel, and the heat dissipation effect is improved.

Furthermore, the baffle on one side of the partition devices on the two sides is opposite to the interval on the other side, so that the chimney effect is reduced while the air circulation is ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the device for increasing the photovoltaic safety of roofs of the present invention;

FIG. 2 is an implementation of a mesh partition;

fig. 3 is a schematic side view of the device for increasing the photovoltaic safety of a roof according to the invention.

In the figure: 1-photovoltaic panel, 2-roof, 3-first partition device, 31-horizontal bar, 32-vertical bar, 4-second partition device and 5-two-side partition device.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings, which are included to illustrate and not to limit the invention:

referring to fig. 1, the device for increasing the photovoltaic safety of a roof according to the present invention comprises a partition device disposed between the edge of a photovoltaic panel 1 and a roof 2, and a passage for allowing air to flow is formed between the partition devices on the opposite sides.

In a preferred embodiment of the invention, the partition means comprise a first partition means 3, a second partition means 4 and two side partition means 5; the first partition device 3 and the second partition device 4 are of a net structure, the upper end and the lower end of the first partition device 3 are respectively connected with the upper edge of the photovoltaic panel 1 and the roof 2, and the upper end and the lower end of the second partition device 4 are respectively connected with the lower edge of the photovoltaic panel 1 and the roof 2.

In one embodiment of the invention, the first partition means 3 comprises a plurality of horizontal bars 31 and a plurality of vertical bars 32 fixed to each other crosswise in a net structure as shown in fig. 2. Generally, the width of the horizontal bar 31 is greater than or equal to 1cm, and the length is slightly greater than the width of the photovoltaic panel 1; the width of the vertical bar 32 is more than or equal to 1cm, and the length is slightly more than the installation height of the photovoltaic panel 1 from the roof 2. The distance between every two horizontal strips 31 is more than or equal to 5cm and less than or equal to 30 cm; the distance between every two vertical strips 32 is more than or equal to 5cm and less than or equal to 30 cm. The second partition means 4 is of a similar construction to the first partition means 3. Of course, the net-shaped structure can be made into other shapes according to actual needs.

In a preferred embodiment of the invention, the first and second separating means 3, 4 have a length greater than the length of the upper and lower edges of the photovoltaic panel 1 and a height greater than the height of the photovoltaic panel 1.

In a preferred embodiment of the present invention, the first partition device 3 and the second partition device 4 are both net-shaped structures with spaced open nets and close nets, and the open net of the first partition device 3 faces the close net of the second partition device 4, and the close net of the first partition device 3 faces the open net of the second partition device 4.

When the roof 2 is horizontal, the two side partition devices 5 are of a net structure, the specific structure can refer to the first partition device 3 and the second partition device 4, and the upper end and the lower end of the two side partition devices 5 are respectively connected with the two side edges of the photovoltaic panel 1 and the roof 2. Preferably, the length of the two side partition devices 5 is greater than the length of the two side edges of the photovoltaic panel 1, and the height is greater than the height of the photovoltaic panel 1.

When the roof 2 is inclined, as shown in fig. 3, the partition devices 5 on both sides are a plurality of baffles arranged at intervals, and the bottom edges of the baffles are connected with the roof 2. Preferably, the top edge of the baffle is parallel to the lower surface of the two side edges of the photovoltaic panel 1 and a gap exists. Preferably, the baffles are arranged at equal intervals, and the interval is 5-50 cm. Preferably, the baffle on one side of the two-side partition device 5 faces the interval on the other side. Generally, the length of the baffle is greater than or equal to 5cm, less than or equal to 50cm, and the height is less than the installation height of the photovoltaic panel 1 from the roof 2. The distance between the baffles is more than or equal to 5cm and less than or equal to 50 cm.

When the distance between photovoltaic board 1 and roof 2 is great, when the baffle size was unchangeable, can install two-layer baffle, 1 layer is installed on roof 2, and the lower side is connected with roof 2 surface, and 1 layer is installed on photovoltaic board 1 in addition, and the higher authority is connected with photovoltaic board 1 lower surface.

The effects of the present invention will be described in further detail with reference to specific examples below:

the length of the photovoltaic panel 1 arranged on the roof 2 is 211.1cm, the width is 104.6cm, the inclination angle of the roof 2 is 20 degrees, and the installation height of the photovoltaic panel 1 from the roof 2 is 40cm.

As shown in fig. 2, the first partition device 3 and the second partition device 4 are filter net structures composed of several horizontal strips 31 and vertical strips 32, wherein the horizontal strips 31 have a width of 1.5cm and a length of 225cm, which is slightly larger than the width of the photovoltaic panel 1; the vertical strips 32 are 1.5cm wide and 45cm long, and are slightly larger than the installation height of the photovoltaic panel 1 from the roof 2. The distance between every two horizontal strips 31 is 7cm, and the distance between every two vertical strips 32 is 7 cm; the two-side partition device 5 selects 1 layer of baffle row composed of a plurality of baffles, is vertically arranged on the roof 2 at two sides of the photovoltaic panel 1, and the lower sides of the baffles are contacted with the surface of the roof 2; the baffles are parallelograms with lower side length equal to the inclination angle of the roof 2, the included angle is 70 degrees, each baffle is 25cm long, 30cm high and 7.5cm apart.

The above description is only a part of the embodiments of the present invention, and although some terms are used in the present invention, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention and are to be construed as any additional limitation which is not in accordance with the spirit of the invention. The foregoing is merely an illustration of the present invention for the purpose of providing an easy understanding and is not intended to limit the present invention to the particular embodiments disclosed herein, and any technical extensions or innovations made herein are protected by the present invention.