Photovoltaic desertification control device and photovoltaic desertification control system

Abstract

The utility model relates to a photovoltaic desertification control device and a photovoltaic desertification control system, the photovoltaic desertification control device comprises a grass checkered sand barrier and a reflective assembly, and a sand stabilization area with an upward opening is formed in the grass checkered sand barrier; the light reflecting assembly comprises a light reflecting piece, the light reflecting piece is laid in the sand stabilization area and covers the opening, and the light reflecting piece can be used for reflecting at least part of sunlight irradiated on the light reflecting piece to the back face of the double-face photovoltaic panel arranged above the straw checkered sand barrier. By means of the technical scheme, the photovoltaic desertification control device can improve the electric energy conversion efficiency of the photovoltaic panel, meanwhile, the effect of stabilizing sand can be achieved, sandy soil is stabilized so that erosion of wind and sand to surrounding soil and vegetation can be reduced, and the desert ecological environment can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of photovoltaic desertification control technology, specifically to a photovoltaic desertification control device and a photovoltaic desertification control system. Background Technology

[0002] Photovoltaic desertification control is an environmentally friendly technology that combines solar photovoltaic power generation with desert management. It can generate electricity using photovoltaic panels while also promoting the restoration and improvement of the desert ecosystem.

[0003] In related technologies, photovoltaic panels typically employ a double-sided structure. However, since the back of the photovoltaic panel can only receive a small amount of sunlight, the power conversion efficiency of the photovoltaic panel is relatively low. Utility Model Content

[0004] The purpose of this disclosure is to provide a photovoltaic desertification control device and system that can improve the power conversion efficiency of photovoltaic panels, while also achieving the function of sand fixation, stabilizing sand and reducing wind and sand erosion of the surrounding soil and vegetation, thus helping to improve the desert ecological environment.

[0005] To achieve the above objectives, a first aspect of this disclosure provides a photovoltaic desertification control device, comprising: a straw checkerboard sand barrier, wherein an upward-facing sand-fixing area is formed within the straw checkerboard sand barrier; and a reflective component, including a reflector, wherein the reflector is laid within the sand-fixing area and covers the opening, and the reflector is capable of reflecting at least a portion of sunlight illuminating the reflector to the back of a double-sided photovoltaic panel arranged above the straw checkerboard sand barrier.

[0006] Optionally, the reflector includes a main structure, the top wall of the main structure is recessed downward to form a liquid collection tank, the bottom wall of the main structure is provided with a water-retaining structure, the water-retaining structure is at least partially buried in the sand layer of the sand-fixing area, and the water-retaining structure is provided with a water-retaining cavity, and the bottom of the liquid collection tank is provided with a drain port communicating with the water-retaining cavity.

[0007] Optionally, the cross-section of the liquid collection tank is an inverted trapezoid.

[0008] Optionally, the slope of the inverted trapezoid is 5°-30°.

[0009] Optionally, the main structure includes a transparent protective layer, a reflective layer, and a first support layer arranged in layers. The water-retaining structure is connected to the bottom wall of the first support layer, and the drain outlet passes through the transparent protective layer, the reflective layer, and the first support layer in sequence and communicates with the water-retaining cavity.

[0010] Optionally, the water-retaining structure includes a base plate and a side plate disposed around the edge of the base plate, the side plate and the base plate forming the water-retaining cavity, and the side plate having a break communicating with the drain port; the side plate includes a second support layer located on the outer side, a wrapping layer located on the inner side, and a water-absorbing layer located between the second support layer and the wrapping layer.

[0011] Optionally, the wrapping layer is an absorbent sponge.

[0012] Optionally, the main structure and the water-retaining structure are connected by sewing with thread, which is nylon thread or thin iron wire.

[0013] Optionally, the grass checkerboard sand barrier has multiple sand-fixing areas arranged in an array, and each sand-fixing area is provided with at least one of the reflective components.

[0014] The second aspect of this disclosure provides a photovoltaic desertification control system, including the photovoltaic desertification control device provided in the first aspect above; and a photovoltaic module, including a plurality of bifacial photovoltaic panels, each of which is mounted above the grass checkerboard sand barrier via a photovoltaic bracket.

[0015] The photovoltaic desertification control device provided in this disclosure utilizes the aforementioned technical solution. By laying reflective elements within the sand-fixing area formed by the straw checkerboard sand barrier, and by reflecting at least a portion of the sunlight onto the back of a double-sided photovoltaic panel positioned above the straw checkerboard sand barrier, more sunlight is reflected to the back of the double-sided photovoltaic panel. This improves the power conversion efficiency of the double-sided photovoltaic panel and increases its power generation. Furthermore, since the reflective elements are laid within the sand-fixing area and cover its openings, they effectively stabilize the sand beneath them, reducing wind erosion of the surrounding soil and vegetation, thus contributing to the improvement of the desert ecological environment. Therefore, the photovoltaic desertification control device provided in this disclosure improves the power conversion efficiency of the photovoltaic panel while simultaneously achieving sand fixation, stabilizing the sand to reduce wind erosion of the surrounding soil and vegetation, and ultimately improving the desert ecological environment.

[0016] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the photovoltaic desertification control system provided in an exemplary embodiment of this disclosure;

[0019] Figure 2 yes Figure 1 A magnified view of a portion of location A in the diagram;

[0020] Figure 3 This is a schematic diagram of the structure of the reflective component of the photovoltaic desertification control device provided in an exemplary embodiment of this disclosure;

[0021] Figure 4 This is a schematic diagram of the first support layer, reflective layer, and transparent protective layer of the reflective component provided in an exemplary embodiment of this disclosure.

[0022] Explanation of reference numerals in the attached figures

[0023] 1-Grass checkerboard sand barrier; 110-Sand stabilization area; 2-Reflective component; 210-Reflective element; 211-Main structure; 2111-Transparent protective layer; 2112-Reflective layer; 2113-First support layer; 212-Liquid collection tank; 213-Drain outlet; 220-Water retention structure; 221-Water retention cavity; 222-Base plate; 223-Side plate; 224-Break; 225-Second support layer; 226-Wrapping layer; 227-Water-absorbing layer; 3-Photovoltaic module; 310-Photovoltaic panel; 320-Photovoltaic bracket; 4-Vegetation; 5-Sand layer. Detailed Implementation

[0024] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0025] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower spaces within the photovoltaic desertification control device when it is in use. "Inner" and "outer" refer to the inner and outer dimensions relative to the outline of the component or structure itself. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same elements.

[0026] According to a first aspect of this disclosure, a photovoltaic desertification control device is provided, with reference to... Figures 1 to 4 As shown, the photovoltaic sand control device includes a straw checkerboard sand barrier 1 and a reflective component 2. The straw checkerboard sand barrier 1 has an upward-facing sand-fixing area 110. The reflective component 2 includes a reflector 210, which is laid in the sand-fixing area 110 and covers the opening. The reflector 210 can be used to reflect at least part of the sunlight shining on the reflector 210 to the back of a double-sided photovoltaic panel 310 arranged above the straw checkerboard sand barrier 1.

[0027] Through the above-described technical solution, namely the photovoltaic desertification control device provided in this disclosure, reflective elements 210 are laid within the sand-fixing area 110 formed within the straw checkerboard sand barrier 1. These reflective elements 210 reflect at least a portion of the sunlight incident on them to the back of the double-sided photovoltaic panel 310 arranged above the straw checkerboard sand barrier 1, thereby achieving the goal of reflecting more sunlight to the back of the double-sided photovoltaic panel 310. This improves the power conversion efficiency of the double-sided photovoltaic panel 310 and helps increase its power generation. Furthermore, since the reflective elements 210 are laid within the sand-fixing area 110 and cover its openings, they effectively fix the sand beneath them, reducing wind and sand erosion of the surrounding soil and vegetation 4, and contributing to the improvement of the desert ecological environment. Therefore, the photovoltaic desertification control device provided in this disclosure can improve the power conversion efficiency of the photovoltaic panel 310, and at the same time, it can also achieve the function of sand fixation, stabilize the sand and reduce the erosion of the surrounding soil and vegetation by wind and sand, which helps to improve the desert ecological environment.

[0028] In some implementations, reference Figures 1 to 3 As shown, the reflector 210 may include a main structure 211. The top wall of the main structure 211 is recessed downwards to form a liquid collection groove 212. The bottom wall of the main structure 211 is provided with a water-retaining structure 220. The water-retaining structure 220 is at least partially buried in the sand layer 5 of the sand-fixing area 110, and a water-retaining cavity 221 is provided inside the water-retaining structure 220. The bottom of the liquid collection groove 212 is provided with a drain outlet 213 communicating with the water-retaining cavity 221. In this way, by providing the liquid collection groove 212, the reflector can achieve... For example, rainwater or water used to clean the photovoltaic panel 310 is collected, and the water collected in the collection tank 212 is stored in the water-retaining cavity 221 of the water-retaining structure 220 through the drain outlet 213. This allows for the subsequent placement of seeds or seedlings (plants 4) into the water-retaining cavity 221 and fixation by the soil. The water-retaining cavity 221 stores water, maintaining a moist soil environment, which promotes the growth of the plants 4 and increases their survival rate, thus achieving the goal of ecological desertification control. Furthermore, by burying the water-retaining structure 220 at least partially in the sand layer 5, the reflective component 2 can be stably laid in the sand-fixing area 110, improving the sand-fixing effect.

[0029] Additionally, in some implementations, references Figure 1 and Figure 3 As shown, the cross-section of the liquid collection tank 212 can be an inverted trapezoid to facilitate the guidance of rainwater flowing into the liquid collection tank 212 or water after cleaning the photovoltaic panel 310 into the water retention chamber 221.

[0030] For example, such as Figure 1As shown, the slope 'a' of the inverted trapezoid can be 5°-30° to facilitate guiding rainwater flowing into the collection tank 212 or water after cleaning the photovoltaic panel 310 into the water retention chamber 221. Of course, the specific embodiment of the slope 'a' of the inverted trapezoid described above is exemplary, and those skilled in the art can also design it adaptively according to actual application needs; this disclosure is not limited thereto.

[0031] In addition, it should be noted that this disclosure does not specifically limit the outline of the main structure 211 of the reflector 210, nor the corresponding structural dimensions. Those skilled in the art can adapt the outline of the main structure 211 and the corresponding structural dimensions according to actual application requirements, such as the outline of the sand-fixing area 110 formed by the grass checkerboard sand barrier 1 and the corresponding length of the sand-fixing area 110. The purpose is to enable the reflector 210 to be laid in the sand-fixing area 110 and cover the opening of the sand-fixing area 110.

[0032] For example, such as Figure 3 As shown, the outer contour of the main structure 211 can be, for example, a frustum shape. The frustum-shaped main structure 211 has a liquid collection trough 212 with an inverted trapezoidal cross section. The maximum outer diameter of the frustum can be, for example, 0.8m-1.2m. Thus, through the arc design of the outer side of the frustum, it can fix the sand under the reflector 210. Combined with the grass checkerboard sand barrier 1 based on the parabolic motion of the sand grains, the wind and sand form a rotating motion within the grass checkerboard sand barrier 1, forming a pot-shaped motion with high sides and low center. This helps to reduce sand movement and reduce the erosion of the surrounding soil and vegetation 4 by wind and sand, which helps to improve the desert ecological environment. Of course, this disclosure is not limited to this. For example, the outer contour of the main structure 211 can also be, for example, a cylindrical or square shape not shown in the figure.

[0033] In some implementations, reference Figures 1 to 4As shown, the main structure 211 may include a transparent protective layer 2111, a reflective layer 2112, and a first support layer 2113 arranged in layers. The water-retaining structure 220 is connected to the bottom wall of the first support layer 2113. The drain outlet 213 passes through the transparent protective layer 2111, the reflective layer 2112, and the first support layer 2113 in sequence and is connected to the water-retaining cavity 221. In this way, the arrangement of the first support layer 2113 can ensure that the main structure 211 is stably connected to the water-retaining structure 220 and can ensure that the overall structure of the main structure 211 has high reliability. In addition, by coating the reflective layer 2112 on the first support layer 2113 and coating the reflective layer 2112 with the transparent protective layer 2111, at least part of the sunlight shining on the reflective layer 2112 of the reflector 210 can be reflected to the back of the double-sided photovoltaic panel 310 arranged above the grass checkerboard sand barrier 1. At the same time, the transparent protective layer 2111 can also play a protective role and improve the service life of the reflector 210.

[0034] The transparent protective layer 2111 can be, for example, a UV-curable coating, a fluorinated organic coating, or a stain-resistant silicone coating. The reflective layer 2112 can be, for example, an inorganic coating such as aluminum foil, or an organic-inorganic composite coating such as polyurethane, polyester, acrylate, titanium dioxide, aluminum oxide, zinc oxide, or glass microspheres. The first support layer 2113 can be, for example, fiberglass cloth, nylon cloth, or polyester cloth. Those skilled in the art can also design it adaptively according to actual application needs, and this disclosure is not limited thereto.

[0035] It should be noted that this disclosure does not specifically limit the preparation process of the main structure 211. Its purpose is to achieve the following: at least part of the sunlight irradiated on the reflective layer 2112 of the reflector 210 is reflected to the back of the double-sided photovoltaic panel 310 arranged above the grass checkerboard sand barrier 1, while rainwater or water after washing the photovoltaic panel 310 is collected in the collection tank 212 and stored in the water-retaining cavity 221 of the water-retaining structure 220 through the drain port 213. For example, in some embodiments, acrylic resin (70%), titanium dioxide (10%), barium sulfate (10%), curing agent (5%), and adhesive (5%) can be uniformly mixed by a high-speed mixer. The reflective layer 2112 obtained after bonding is uniformly coated on the nylon mesh cloth (first support layer 2113) after anti-permeability treatment. After heating and drying, the transparent protective layer 2111, which is obtained by uniformly mixing polytetrafluoroethylene emulsion (90%) and aliphatic isocyanate (10%) in a high-speed mixer, is uniformly coated on the reflective layer 2112. After drying in the drying tunnel and curing in the curing chamber, the main structure 211 can be obtained by cutting and sewing. This achieves the purpose of reflecting some sunlight to the back of the double-sided photovoltaic panel 310, while also collecting rainwater or water after washing the photovoltaic panel 310 into the liquid collection tank 212 and storing the water in the water-retaining cavity 221 of the water-retaining structure 220 through the drain port 213.

[0036] Additionally, in some implementations, references Figures 1 to 4 As shown, the water-retaining structure 220 may include a base plate 222 and a side plate 223 arranged around the edge of the base plate 222. The side plate 223 and the base plate 222 form a water-retaining cavity 221. The side plate 223 has a break 224 communicating with the drain port 213. The side plate 223 may include a second support layer 225 located on the outer side, a wrapping layer 226 located on the inner side, and a water-absorbing layer 227 located between the second support layer 225 and the wrapping layer 226. In this way, the arrangement of the second support layer 225 can ensure that the water-retaining structure 220 is stably connected to the main structure 211 (i.e., the second support layer 225 of the water-retaining structure 220 is connected to the main body). The first support layer 2113 of structure 211 is connected, and it can ensure that the overall structure of water-retaining structure 220 has high reliability. In addition, by coating the water-absorbing layer 227 on the second support layer 225, and coating the water-absorbing layer 227 with a wrapping layer 226, it can not only lock in some of the water in the water-retaining cavity 221 through the water-absorbing layer 227, reducing the rate of water evaporation and loss, so that the roots of the vegetation 4 can slowly absorb water, which helps the growth of the vegetation 4, increases the survival rate of the vegetation 4, and achieves the purpose of ecological desertification control, but also the wrapping layer 226 can play a protective role and improve the service life of the water-retaining structure 220.

[0037] The aforementioned wrapping layer 226 can be, for example, an absorbent sponge, to achieve the purpose of locking in some of the moisture in the water-retaining cavity 221 through the absorbent layer 227, thereby reducing the rate of moisture evaporation and loss. Furthermore, the aforementioned absorbent layer 227 can be a coating of plant fibers such as straw powder, corn stalk powder, coconut shell fiber, waste cotton thread, or cotton cloth. The aforementioned second support layer 225 can be formed by tightly arranging, for example, straw or reed stalks and then weaving them together with hemp rope. Those skilled in the art can also design it adaptably according to actual application needs; this disclosure is not limited thereto.

[0038] In addition, the bottom plate 222 can have the same structure as the side plate 223, that is, it can also include a second support layer 225 on the outer side, a wrapping layer 226 on the inner side, and a water-absorbing layer 227 between the second support layer 225 and the wrapping layer 226. Alternatively, the bottom plate 222 can have a different structure from the side plate 223. For example, the bottom plate 222 may only include the second support layer 225. This disclosure does not specifically limit such variations, and those skilled in the art can also design them adaptively according to actual application needs.

[0039] It should be noted that this disclosure does not specifically limit the preparation process of the above-mentioned water-retaining structure 220. Its purpose is to lock in some of the water in the water-retaining cavity 221 and reduce the rate of water evaporation and loss. For example, in some embodiments, the crushed fiber powder (90%), lignin adhesive (8%) and coupling agent (2%) can be mixed evenly, and the mixed material can be hot-pressed into a turf-like water-absorbing layer 227 and coated onto the second support layer 225, which is formed by tightly arranging straw and weaving it into a single piece with hemp rope. Then, the water-absorbing sponge (wrapping layer 226) is bonded to the water-absorbing layer 227 and the second support layer 225 are pressed together by a lamination process. The water-retaining structure 220 can be obtained by cutting and sewing, so as to achieve the purpose of locking in some of the water in the water-retaining cavity 221 and reducing the rate of water evaporation and loss.

[0040] Furthermore, this disclosure does not specifically limit the external outline and corresponding structural dimensions of the water-retaining structure 220. Those skilled in the art can design it adaptively according to actual application needs. For example, the external shape of the water-retaining structure 220 can be cylindrical or square.

[0041] Furthermore, in some embodiments, the main structure 211 and the water-retaining structure 220 can be connected by sewing with nylon thread or thin iron wire, which is simple in structure and easy to install and manufacture. Of course, the main structure 211 and the water-retaining structure 220 can also be integrally formed into the reflective component 2 by, for example, 3D printing. This disclosure does not specifically limit such modifications, and those skilled in the art can also design adaptively according to actual application needs.

[0042] In some implementations, such as Figure 1 As shown, the grass checkerboard sand barrier 1 can have multiple sand-fixing areas 110 arranged in an array, for example, multiple sand-fixing areas 110 can be arranged in a rectangular array, and each sand-fixing area 110 is provided with at least one reflective component 2, so as to improve the power conversion efficiency of the photovoltaic panel 310, and at the same time, it can also achieve the function of sand fixation, stabilize the sand and reduce the erosion of the surrounding soil and vegetation by wind and sand, which helps to improve the desert ecological environment.

[0043] According to a second aspect of this disclosure, a photovoltaic desertification control system is provided, with reference to... Figure 1 As shown, the photovoltaic desertification control system includes the photovoltaic desertification control device and photovoltaic module 3 provided in the first aspect above. The photovoltaic module 3 includes multiple double-sided photovoltaic panels 310. Each double-sided photovoltaic panel 310 is mounted above the grass checkerboard sand barrier 1 via a photovoltaic support 320, which can improve the power conversion efficiency of the photovoltaic panel 310 and also achieve the function of sand fixation, stabilizing the sand and reducing the erosion of the surrounding soil and vegetation by wind and sand, thus helping to improve the desert ecological environment. In addition, the photovoltaic desertification control system also has all the beneficial effects of the photovoltaic desertification control device mentioned above, which will not be repeated here.

[0044] This disclosure does not specifically limit the specific structure of the above-mentioned double-sided photovoltaic panel 310 and photovoltaic bracket 320. Those skilled in the art can choose any double-sided photovoltaic panel 310 and photovoltaic bracket 320 known in the art according to actual application needs.

[0045] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0046] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0047] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A photovoltaic desertification control device, characterized in that, include: The straw checkerboard sand barrier has an upward-facing sand-fixing area within it. and A reflective assembly, including a reflector laid within the sand-fixing area and covering the opening, the reflector being capable of reflecting at least a portion of sunlight incident on it to the back of a double-sided photovoltaic panel arranged above the grass checkerboard sand barrier.

2. The photovoltaic desertification control device according to claim 1, characterized in that, The reflective element includes a main structure, the top wall of which is recessed downward to form a liquid collection tank, the bottom wall of which is provided with a water-retaining structure, the water-retaining structure is at least partially buried in the sand layer of the sand-fixing area, and the water-retaining structure is provided with a water-retaining cavity, and the bottom of the liquid collection tank is provided with a drain outlet communicating with the water-retaining cavity.

3. The photovoltaic desertification control device according to claim 2, characterized in that, The cross-section of the liquid collection tank is an inverted trapezoid.

4. The photovoltaic desertification control device according to claim 3, characterized in that, The inverted trapezoid has an inclination of 5°-30°.

5. The photovoltaic desertification control device according to claim 2, characterized in that, The main structure includes a transparent protective layer, a reflective layer, and a first support layer arranged in layers. The water-retaining structure is connected to the bottom wall of the first support layer. The drain outlet passes through the transparent protective layer, the reflective layer, and the first support layer in sequence and then communicates with the water-retaining cavity.

6. The photovoltaic desertification control device according to claim 2, characterized in that, The water-retaining structure includes a base plate and a side plate disposed around the edge of the base plate, the side plate and the base plate forming the water-retaining cavity, and the side plate having a break that communicates with the drain outlet; The side panel includes a second support layer on the outer side, a wrapping layer on the inner side, and an absorbent layer between the second support layer and the wrapping layer.

7. The photovoltaic desertification control device according to claim 6, characterized in that, The wrapping layer is an absorbent sponge.

8. The photovoltaic desertification control device according to claim 2, characterized in that, The main structure and the water-retaining structure are connected by sewing with thread, which is nylon thread or thin iron wire.

9. The photovoltaic desertification control device according to claim 1, characterized in that, The grass checkerboard sand barrier has multiple sand-fixing areas arranged in an array, and each sand-fixing area is provided with at least one of the reflective components.

10. A photovoltaic desertification control system, characterized in that, include: The photovoltaic desertification control device according to any one of claims 1-9; and The photovoltaic module includes multiple bifacial photovoltaic panels, each of which is mounted above the grass checkerboard sand barrier via a photovoltaic bracket.

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