CN116439113A - Sand control device and photovoltaic sand control system - Google Patents

Abstract

The application provides a sand control device and a photovoltaic sand control system, wherein a plurality of sand control devices are mutually spliced to define a planting area in a surrounding manner; the desertification control device comprises: the box body is configured to be partially embedded into the sand layer, and a side wall surface of the box body facing the planting area is a water-retaining layer; the water conveying pipeline is arranged in the box body; the first end of the branch pipe section is communicated with the water conveying pipeline, and the second end of the branch pipe section stretches into the water retaining layer; the water seepage conduit penetrates through the side wall of the box body and is communicated with the water conveying pipeline, and the water outlet end of the water seepage conduit extends to the vicinity of the root system of the plant in the planting area; when the plurality of boxes are spliced, the water delivery pipelines in the boxes are mutually communicated, and the water inlet of one water delivery pipeline is connected with an external water source. After the sand control devices are spliced with each other, the sand control device not only can play a role in shielding sand, but also can provide water required by growth for plants in a planting area, so that the survival rate of the plants in the desert is improved, and the desertification control efficiency is further improved.

Description

Sand Control Device and Photovoltaic Sand Control System

technical field

The present application relates to the technical field of photovoltaic sand control, in particular to a sand control device and a photovoltaic sand control system.

Background technique

In recent years, with the increasing problems of water shortage, land salinization and wind erosion, land desertification has become increasingly serious, and the control of land desertification is imminent. Photovoltaic sand control has been widely used and promoted because it can realize the coordination and unification of ecological benefits, economic benefits and social benefits.

The biggest feature of photovoltaic desertification control is the combination of photovoltaic development and desert control, and the effect of desertification prevention and control by planting plants. However, the survival rate of plants in the desert is low, which affects the efficiency of desertification control.

Contents of the invention

Based on this, the present application provides a sand control device and a photovoltaic sand control system to solve the deficiencies of related technologies.

According to an aspect of the embodiment of the present application, a sand control device is provided, and a plurality of sand control devices are spliced together to enclose and define a planting area; the sand control device includes:

The box body, the box body is configured to be partially buried in the sand layer, and the side wall of the box body facing the planting area is a water-retaining layer;

The water delivery pipeline is arranged inside the box;

The branch pipe section, the first end is connected with the water delivery pipeline, and the second end extends into the water retention layer;

The water seepage conduit runs through the side wall of the box and communicates with the water delivery pipeline. The part of the water seepage conduit protruding from the box is configured to be buried in the sand layer, and the water outlet end of the water seepage conduit extends to the vicinity of the roots of the plants in the planting area;

Wherein, when a plurality of boxes are spliced, the water delivery pipelines in each box are connected to each other, and the water inlet of one of the water delivery pipelines is connected to an external water source.

In a possible implementation, the water retention layer includes a fertilizer layer, a coarse sand layer, a fine sand layer and a clay layer, the coarse sand layer is arranged on the side of the fertilizer layer facing the planting area, and the fine sand layer is arranged on the side of the coarse sand layer facing the planting area. On one side of the planting area, the clay layer is set on the side of the fine sand layer facing the planting area;

The second end of the branch pipe section extends into the fertilizer layer.

In a possible implementation manner, the main part of the branch pipe section is provided with a bent section.

In a possible implementation, the sand control device also includes a rain collection assembly, the rain collection assembly includes an umbrella and a first rain pipe, one end of the first rain pipe extends into the box and communicates with the water pipeline, and the rain collection The umbrella is arranged above the box body and connected with the first rain pipe, and the rainwater collected by the umbrella can be introduced into the water delivery pipeline through the first rain pipe.

In a possible implementation manner, the rain collection assembly further includes a canopy, the canopy is installed at the other end of the first rain pipe and communicated with the first rain pipe, and the rain collection umbrella is arranged between the canopy and the box body, The edge of the umbrella exceeds the ceiling, the first rain pipe runs through the umbrella, and the side wall of the first rain pipe is provided with holes for the rainwater in the umbrella to enter.

In a possible implementation manner, the rain collection assembly further includes a second rain pipe, the second rain pipe is coiled and arranged in the box body, one end of the second rain pipe communicates with one end of the first rain pipe, and the second rain pipe connects with one end of the first rain pipe. The other end of the second rain pipe is communicated with the water delivery pipeline.

In a possible implementation manner, a one-way valve is provided between the second rain pipe and the water delivery pipeline.

According to another aspect of the embodiments of the present application, a photovoltaic sand control system is provided, including a water supply module and the above-mentioned multiple sand control devices;

Multiple sand control devices are spliced together and define the planting area;

The water supply module includes an irrigation box, a water supply station, a water pump and a monitoring module. The irrigation box is connected to the water supply station through a pipeline. The amount of water in the irrigation tank and control the start and stop of the water pump.

In a possible implementation, the water supply module also includes a rain collection box and a rain collection tank, the rain collection tank is installed on the photovoltaic module, the rain collection box is connected to the rain collection tank, the rain collection box is connected to the irrigation box through a pipe, and the rain collection The rain box is connected to the water supply station through a pipeline, the water in the rain collection box and the irrigation box can flow into the water supply station through the pipeline, and the water pump is configured to drive the water in the water supply station to enter the water supply station and the irrigation box through the pipeline.

In a possible implementation, the monitoring module includes a water volume monitor installed in the irrigation box, a first pressure gauge and a controller installed on the pipeline, and the water volume monitor, the first pressure gauge, the water pump and the switch valve are respectively connected with The controller is electrically connected.

In the sand control device provided by this application, by setting a water-retaining layer on the side of the box facing the planting area, when the water delivery pipeline is connected to an external water source, part of the water in the water delivery pipeline can flow to the water-retention layer, and then to the water-retention device through the water-retention layer. seeps into the surrounding sand. In addition, part of the water in the water pipeline can directly supply water to the plants in the planting area through the water seepage conduit. In this way, the splicing of multiple sand control devices can not only block the sand, but also provide the plants in the planting area with the water needed for growth, improve the survival rate of plants in the desert, and then improve the efficiency of desertification control.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the overall arrangement diagram of the photovoltaic desertification control system provided by the embodiment of the present application;

Fig. 2 is a schematic structural view of the sand control device provided by the embodiment of the present application;

Fig. 3 is a schematic diagram of the layout of the water delivery pipeline, the seepage conduit and the rain collection assembly provided by the embodiment of the present application;

Fig. 4 is a schematic diagram of the layout of the branch pipe section provided by the embodiment of the present application;

Fig. 5 is a schematic diagram of the box at the splicing place provided by the embodiment of the present application;

FIG. 6 is a schematic structural diagram of a water-retaining layer provided in an embodiment of the present application.

Explanation of reference signs:

100-sand control device; 110-box; 111-water retention layer; 1111-fertilizer layer; 1112-coarse sand layer; 1113-fine sand layer; 1114-clay layer; 120-water pipeline; 121-interface; 130- Branch pipe section; 131-bending section; 140-seepage conduit; 141-water seepage component; 150-rain collection assembly; 151-collection umbrella; ;

200 - planting area;

310-rain collection tank; 320-rain collection box; 330-irrigation box; 340-water supply station; 351-main water supply pipe; 352-branch water supply pipe; 360-switch valve; 370-flushing valve;

410-first pressure gauge; 420-second pressure gauge; 430-water volume monitor;

500 - Photovoltaic modules.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application. Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

In the description of this application, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or an intermediate connection. The media is indirectly connected, which can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In the description of this application, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship of the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific configuration and operation, and therefore should not be construed as limiting the application.

The terms "first", "second", and "third" (if any) in the description and claims of the present application and the above drawings are used to distinguish similar objects and not necessarily to describe a specific order or priority.

Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or display comprising a sequence of steps or elements is not necessarily limited to the expressly listed Those steps or elements may instead include other steps or elements not explicitly listed or inherent to the process, method, product or display.

At present, the survival rate of plants in the desert is low, which affects the efficiency of desertification control. This is due to lack of water in the desert, high ambient temperature, and inadequate water conservation measures.

After repeated thinking and verification, the inventor of the present application found that if a sand control device is designed, multiple sand control devices can be spliced with each other and arranged around the planting area. The sand control device is provided with a water pipeline that can be connected to an external water source and a water seepage conduit connected to the water supply pipeline, and the water outlet end of the water seepage conduit extends to the vicinity of the root system of the plants in the planting area. The plants in the planting area can be supplied with water through the water pipeline and the seepage conduit. In addition, the side wall of the sand control device facing the planting area is set as a water-retaining layer, part of the water in the water pipeline can flow to the water-retaining layer, and penetrate into the sand around the sand-control device through the water-retaining layer. to water retention. In this way, the sand control device can not only play the role of blocking sandy soil but also improve the survival rate of plants in the desert.

In view of this, the inventor of the present application has designed a sand control device, which includes a box body, a water delivery pipeline and a water seepage conduit. Part of the box body is configured to be buried in the sand layer, and the wall surface of the box body facing the planting area is a water-retaining layer. The water pipeline in the box can transport water to the water retention layer and the water seepage conduit respectively, the water seepage conduit can directly supply water to the plants in the planting area, and the water retention layer can improve the water retention of the planting area. The survival rate of plants in the desert can be improved by using the sand control device.

The technical solution of the sand control device and the photovoltaic sand control system provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Referring to Figures 1-5 , the embodiment of the present application provides a sand control device 100 , and multiple sand control devices 100 can be joined together to enclose and define a planting area 200 . The sand control device 100 includes a box body 110 , a water delivery pipeline 120 , branch pipe sections 130 and a water seepage conduit 140 . The box body 110 is configured to be partially buried in the sand layer, and the side wall of the box body 110 facing the planting area 200 is a water-retaining layer 111 . The water delivery pipeline 120 is arranged inside the box body 110 , the first end of the branch pipe section 130 communicates with the water delivery pipeline 120 , and the second end extends into the water retention layer 111 . The water seepage conduit 140 runs through the side wall of the box body 110 and communicates with the water delivery pipeline 120. The part of the water seepage conduit 140 protruding from the box body 110 is configured to be buried in the sand layer, and the water outlet end of the water seepage conduit 140 extends to the planting area 200. near the roots. Wherein, when a plurality of tanks 110 are spliced, the water delivery pipelines 120 in each tank 110 are connected to each other, and the water inlet of one of the water delivery pipelines 120 is connected to an external water source.

Schematically, a plurality of sand control devices 100 can be spliced together to form a ring structure, and the ring structure is arranged around the planting area 200 . Exemplarily, the shape of the annular structure may be a rectangle, and at the four corners of the rectangle, the splicing surfaces of two adjacent sand control devices 100 may be spliced with each other through inclined surfaces. In the process of connecting multiple sand control devices 100, trenches can be excavated on the site first, each sand control device 100 is put into the trench and two adjacent sand control devices 100 are spliced and fixed; Filling up the trench can make the box body 110 partially buried in the sand layer. Wherein, the part of the box body 110 located above the sand layer can play a role of shielding the sand. Exemplarily, the sand control device 100 can be made of degradable materials such as bamboo powder biodegradable materials.

In a possible implementation manner, a support body may be provided in the box body 110 , and the water delivery pipeline 120 is fixed inside the box body 110 through the support body. Wherein, as shown in FIG. 3 and FIG. 5 , the water delivery pipeline 120 is provided with a water inlet and an interface 121 exposed from the box body 110 and the interface 121 is located on the splicing surface of the box body 110 . When a plurality of sand control devices 100 are spliced together, in one of the sand control devices 100, the water inlet of the water delivery pipeline 120 can be connected to an external water source, and the interface 121 of the water delivery pipeline 120 can be connected to another sand control device 100. The water inlet of the water pipeline 120 is connected. It is worth mentioning that the number of interfaces 121 of the water delivery pipeline 120 can be one or more. 120 is provided with only one water inlet, and the water delivery pipelines 120 in the other sand control devices 100 can be provided with multiple inlets and outlets. When the boxes 110 of two adjacent sand control devices 100 are spliced, the interface 121 of the water delivery pipeline 120 of one sand control device 100 is in close contact with the water inlet of the water delivery pipeline 120 of the other sand control device 100 .

As shown in FIG. 3 and FIG. 4 , for example, the first end of the branch pipe section 130 may be connected to point A of the water delivery pipeline 120 . The thickness of the water-retaining layer 111 can be set according to needs, and there is no unique limitation here.

Wherein, the quantity of the seepage conduit 140 is non-limiting, and those skilled in the art can set it according to needs, and there is no unique limitation here. One end of the seepage conduit 140 is connected to the water delivery pipeline 120, and the other end of the seepage conduit 140 passes through the side wall of the tank bottom. 2 and 3 show that the end of the water seepage conduit 140 away from the water delivery pipeline 120 is equipped with a water seepage member 141. The water seepage member 141 is a spherical structure with small holes, and supplies moisture to the plants in the planting area 200 through the water seepage member 141. .

In the sand control device 100 provided in the embodiment of the present application, by setting the water retention layer 111 on the side of the box body 110 facing the planting area 200, when the water delivery pipeline 120 is connected to an external water source, part of the water in the water delivery pipeline 120 can flow to the water retention The layer 111 penetrates into the sand around the water retention device via the water retention layer 111 . In addition, part of the water in the water delivery pipeline 120 can directly supply water to the plants in the planting area 200 through the water seepage conduit 140 . In this way, multiple sand control devices 100 can not only play the role of shielding sand and soil after they are spliced together, but also can provide the plants in the planting area 200 with the water needed for growth, improve the survival rate of plants in the desert, and then improve the efficiency of desertification control .

In addition, the sand control device 100 provided in the embodiment of the present application has strong site adaptability, and multiple sand control devices 100 can be assembled according to needs, and the connection speed of multiple sand control devices 100 is fast. The sand control device 100 can realize a long desertification control cycle by supplying water to the plants in the planting area 200 .

In one embodiment, as shown in FIGS. 4 and 6 , the water retention layer 111 includes a fertilizer layer 1111 , a coarse sand layer 1112 , a fine sand layer 1113 and a clay layer 1114 . The coarse sand layer 1112 is arranged on the side of the fertilizer layer 1111 towards the planting area 200, the fine sand layer 1113 is arranged on the side of the coarse sand layer 1112 towards the planting area 200, and the clay layer 1114 is arranged on the side of the fine sand layer 1113 towards the planting area 200. On the side, the second end of the branch pipe section 130 extends into the fertilizer layer 1111 .

Wherein, the fertilizer in the fertilizer layer 1111 may be organic fertilizer. In a possible implementation, multiple layers of support nets can be respectively arranged on the box body 110, and the fertilizer layer 1111, the coarse sand layer 1112, the fine sand layer 1113 and the clay layer 1114 are respectively arranged on the corresponding two adjacent layers of support nets. In between, each layer in the water-retaining layer 111 is supported by a support net. Those skilled in the art can set the respective thicknesses of the fertilizer layer 1111 , the coarse sand layer 1112 , the fine sand layer 1113 and the clay layer 1114 according to needs, and there is no unique limitation here. After the branch pipe section 130 transports water into the fertilizer layer 1111 , the water in the fertilizer layer 1111 can pass through the coarse sand layer 1112 and the fine sand layer 1113 sequentially through infiltration, and finally infiltrate into the clay layer 1114 . When the clay layer 1114 absorbs enough water, it can provide nutrient water with nutrients for the plants in the planting area 200 .

With this structure, the fertilizer layer 1111, the coarse sand layer 1112, the fine sand layer 1113 and the clay layer 1114 can make the water retention layer 111 have sufficient water retention, and ensure that water can penetrate from the fertilizer layer 1111 into the clay layer 1114, so that the water retention layer 111 Nutrient water with nutrients can be provided to the plants in the planting area 200, and the nutrients and water needed for growth can be provided to the plants. It can be understood that in the planting area 200 , as the plants grow, the roots of the plants will extend around, and when the plants grow to a certain extent, their roots will penetrate into the clay layer 1114 . It is worth mentioning that when the support net is used to support the water retention layer 111 , the support net can be made of degradable materials, so that the support net will not hinder the roots of plants from entering the clay layer 1114 . As the roots penetrated into the clay layer 1114 become thicker, more nutrient water seeps out from the clay layer 1114 . Through the above settings, before the plants in the planting area 200 have the effect of windproof and sand control, the sand control device 100 can provide the plants with nutrients and water for their vigorous growth; the sand control device 100 can monitor the plants in real time according to the growth of the plants Water supply does not require manual monitoring of the growth of crops, and can reduce the waste of water resources and reduce the cost of plant cultivation.

In a specific embodiment, as shown in FIG. 4 , the main part of the branch pipe section 130 is provided with a bent section 131 . Wherein, the number of the bent sections 131 is not limiting, and there is no unique limitation here. By providing the bent section 131 , the impact of the water in the branch pipe section 130 on the water-retaining layer 111 can be reduced, which is beneficial to improve the service life of the water-retaining layer 111 .

In one embodiment, as shown in FIGS. 2 and 3 , the sand control device 100 further includes a rain collection assembly 150 . The rain collecting assembly 150 includes an umbrella 151 and a first rain pipe 152. One end of the first rain pipe 152 extends into the casing 110 and communicates with the water pipeline 120. The umbrella 151 is arranged on the top of the casing 110 and connected with The first rain pipe 152 is connected, and the rainwater collected by the umbrella 151 can be introduced into the water delivery pipeline 120 through the first rain pipe 152 .

Wherein, the first rain pipe 152 can extend vertically, the position of the first rain pipe 152 near the bottom end can be fixed with the top wall of the box body 110, and the first rain pipe 152 can pass through the center of the umbrella 151 set up. Figures 2 and 3 show that the height of the edge of the umbrella 151 is higher than the height of the center. In rainy weather, the umbrella 151 can guide the rainwater to flow in the direction of the first rain pipe 152, and the first rain pipe Offer the hole position for rainwater to enter on the sidewall of 152. It can be understood that the number of umbrellas 151 can be one or more. When the number of umbrellas 151 is multiple, a plurality of umbrellas 151 are spaced along the vertical direction, and the area of the umbrellas 151 below is larger than that of the top. The area of the umbrella 151 is such that the edge of the umbrella 151 below exceeds the umbrella 151 above.

In a possible implementation, the number of first rain pipes 152 can be multiple, and each first rain pipe 152 is equipped with an umbrella 151 and each first rain pipe 152 is connected to the water delivery pipeline 120. connected.

With this structure, the rainwater collected by the umbrella 151 can be collected, and the rainwater collected by the umbrella 151 can be introduced into the water delivery pipeline 120 through the first rain pipe 152, which can save water. In addition, when it is not raining, the umbrella 151 can play the role of sunshade, reduce the evaporation of water near the sand control device 100 and the sun's irradiation on plants, reduce the water evaporation of plants and sand near the sand control device 100, and improve the efficiency of sand control. The water retention function of the device 100 improves the entropy retention effect of plants and further improves the survival rate of plants.

In a specific embodiment, as shown in FIGS. 2 and 3 , the rain collection assembly 150 further includes a canopy 153 . The canopy 153 is installed on the other end of the first rain pipe 152 and communicated with the first rain pipe 152 , and the umbrella 151 is arranged between the canopy 153 and the box body 110 . The edge of the umbrella 151 exceeds the canopy 153, the first rain pipe 152 is set through the umbrella 151, and the side wall of the first rain pipe 152 is provided with a hole for the rainwater in the umbrella 151 to enter.

Specifically, the canopy 153 is installed on the top of the first rain pipe 152 , and the canopy 153 is provided with a through hole communicating with the first rain pipe 152 . Wherein, the height of the edge of the canopy 153 is higher than the height of the connection position between the canopy 153 and the first rain pipe 152 . In rainy weather, the canopy 153 can also collect rainwater and guide the rainwater into the first rain pipe 152 .

Exemplarily, the number of holes may be multiple, and multiple holes may be arranged around the first rain pipe 152 . It can be understood that the projected area of the umbrella 151 in the height direction of the box body 110 is larger than the projected area of the canopy 153 in the height direction of the box body 110 .

In this structure, by setting the canopy 153, when it is not raining, the canopy 153 increases the projected area of the rain collecting assembly 150 nearby, further improves the water retention effect of the sand control device 100, thereby further improving the survival rate of plants. In rainy weather, the canopy 153 can also play the role of collecting rain. In addition, the edge of the umbrella 151 exceeds the canopy 153, which can ensure that the umbrella 151 can collect more rainwater.

In a more specific embodiment, as shown in FIG. 3 , the rain collection assembly 150 further includes a second rain pipe 154 , and the second rain pipe 154 is coiled and arranged in the box body 110 , and the second rain pipe 154 One end communicates with one end of the first rain pipe 152 , and the other end of the second rain pipe 154 communicates with the water pipeline 120 .

Schematically, the second rain pipe 154 can be integrally formed with the first rain pipe 152 . After the rainwater is introduced into the first rain pipe 152 by the umbrella 151 and the canopy 153 , the rainwater in the first rain pipe 152 can enter the water delivery pipeline 120 through the second rain pipe 154 .

With this structure, by setting the second rain pipe 154 and the second rain pipe 154 is coiled and arranged in the box body 110, when the rainfall is large, the second rain pipe 154 can increase the storage of rainwater by the sand control device 100 amount, which can further reduce the use of external water resources.

Optionally, a one-way valve is provided between the second rain pipe 154 and the water delivery pipeline 120 . This embodiment does not limit the specific structure of the one-way valve, and those skilled in the art can select a suitable one-way valve according to actual needs.

With this structure, when the external water source is connected to the water delivery pipeline 120, the one-way valve can prevent water from entering the second rain pipe 154 from the water delivery pipeline 120, and prevent the second rain pipe 154 from affecting the water delivery pipeline 120 to transport water to The water retention layer 111 and the seepage conduit 140; in rainy weather, the water in the second rain conduit 154 can enter the water delivery pipeline 120 through the one-way valve.

As shown in FIG. 1 , the present application also provides a photovoltaic sand control system, including a water supply module and a plurality of above-mentioned sand control devices 100 . A plurality of sand control devices 100 are joined together to define a planting area 200 . The water supply module includes an irrigation box 330, a water supply station 340, a water pump and a monitoring module. The irrigation box 330 is connected to the water supply station 340 through a pipeline. The module is configured to obtain the water volume in the irrigation tank 330 and control the start and stop of the water pump.

It can be understood that when multiple sand control devices 100 are spliced together, the water inlet of the water delivery pipeline 120 of one of the sand control devices 100 can be communicated with the irrigation box 330 through a pipe. Exemplarily, the pump body can be set to drive the water in the irrigation box 330 to enter the water delivery pipeline 120 of the sand control device 100 through a pipe; or, the end of the pipe connected to the irrigation box 330 is higher than the end of the pipe connected to the sand control device 100, The water in the irrigation box 330 can flow into the water pipeline 120 of the sand control device 100 through pipelines in a self-flowing manner.

Exemplarily, as shown in Figure 1, the pipeline includes a main water supply pipe 351 and a branch water supply pipe 352, one end of the main water supply pipe 351 is connected to the water supply station 340, the other end of the main water supply pipe 351 is connected to one end of a branch water supply pipe 352, and the branch water supply The other end of the tube 352 is connected to the irrigation tank 330 . A switch valve 360 may be installed on the branch water supply pipe 352 to control the communication state between the water supply station 340 and the irrigation box 330 .

In a possible implementation, the monitoring module is electrically connected to the water pump and the on-off valve 360 respectively. When the monitoring module detects that the water in the irrigation box 330 is insufficient, it can respectively control the water pump and the on-off valve 360 to open, and the water pump drives the water in the water supply station 340. Water enters the irrigation tank 330 . When the monitoring module detects that the water in the irrigation box 330 reaches a preset amount, the monitoring module can control the on-off valve 360 and the water pump to close.

With this structure, the water supply station 340 can automatically replenish water to the irrigation box 330 according to the amount of water in the irrigation box 330, without manually inspecting the irrigation box 330, thereby reducing labor costs.

In one embodiment, as shown in FIG. 1 , the water supply module further includes a rain collection box 320 and a rain collection groove 310 . The rain collection tank 310 is installed on the photovoltaic module 500 , and the rain collection box 320 communicates with the rain collection tank 310 . The rain collection box 320 is connected to the irrigation box 330 through pipelines, and the rain collection box 320 is connected to the water supply station 340 through pipelines. The water in the rain collection box 320 and the irrigation box 330 can flow into the water supply station 340 via the pipeline, and the water pump is configured to drive the water in the water supply station 340 to enter the water supply station 340 and the irrigation box 330 via the pipeline.

Exemplarily, the rain collecting groove 310 can be a strip structure, and the cross-sectional shape of the rain collecting groove 310 is U-shaped, and one rain collecting groove 310 can be connected with a plurality of photovoltaic modules 500 in a row, wherein the rain collecting groove 310 Installed on the bottom of the photovoltaic panel of the photovoltaic module 500 . When encountering rainy weather, the photovoltaic panels of each photovoltaic module 500 can introduce rainwater into the rain collection groove 310 , and the rainwater in the rain collection groove 310 can enter the rain collection box 320 through pipes.

Exemplarily, the pipeline includes a main water supply pipe 351 and a plurality of branch water supply pipes 352 , wherein one branch water supply pipe 352 is connected to the irrigation box 330 , and the remaining branch water supply pipes 352 are connected to the rain collection box 320 one by one. As shown in FIG. 1 , a switch valve 360 is provided on the branch water supply pipe 352 connected to the rain collection tank 320 . In a possible implementation manner, the height of the end of the pipeline connected to the water supply station 340 is lower than the height of the end of the pipeline connected to the irrigation box 330 and the height of the end of the pipeline connected to the rain collection box 320 . When the rainfall is large, the switch valves 360 on the pipeline can be controlled to open, so that the water in the irrigation box 330 and the rain collection box 320 flows back into the water supply station 340 through the pipeline.

Through the above settings, the photovoltaic sand control system can collect and utilize rainwater, thereby saving water.

In one embodiment, as shown in Figure 1, the monitoring module includes a water volume monitor 430 installed in the irrigation box 330, a first pressure gauge 410 and a controller (not shown) installed on the pipeline, the water volume monitor 430 , the first pressure gauge 410, the water pump and the switch valve 360 are respectively electrically connected to the controller.

Figure 1 shows that the first pressure gauge 410 is installed on the branch water supply pipe 352 connected to the irrigation box 330, the switch valve 360 on the branch water supply pipe 352 is located on the side of the first pressure gauge 410 away from the irrigation box 330, When the switch valve 360 is closed, the first pressure gauge 410 may detect the pressure inside the irrigation tank 330 . When the on-off valve 360 was opened, the first pressure gauge 410 could detect the liquid pressure in the pipeline between the water supply station 340 and the irrigation box 330, so as to prevent the water supply station 340 from replenishing the irrigation box 330 when the liquid pressure in the pipeline was too high to cause pipeline damage. It can be understood that the water volume monitor 430 can detect the water volume in the irrigation box 330. This embodiment does not limit the specific structures of the water volume monitor 430 and the first pressure gauge 410, and those skilled in the art can select a suitable first pressure gauge 410 according to actual needs. A pressure gauge 410 and a water level monitor 430.

In this embodiment, the first pressure gauge 410 can detect the pressure in the irrigation box 330, the water volume monitor 430 can detect the water volume in the irrigation box 330, and when the water volume or pressure in the irrigation box 330 is low, the controller can control the water pump And the corresponding on-off valve 360 is opened, and the water in the water supply station 340 enters the irrigation box 330 under the drive of the water pump. When the water volume and pressure in the irrigation box 330 respectively reach preset values, the control box controls the water pump and the switch valve 360 to close, and the water supply station 340 stops supplying water to the irrigation box 330 . When the rainy weather and the large amount of rainfall cause the water volume and pressure in the irrigation box 330 to exceed the preset value, the controller can control the switch valve 360 to open, and the water in the rain collection box 320 and the irrigation box 330 will flow back through the pipeline in a self-flowing manner to the water supply station 340 . The above settings can ensure that the water volume and pressure in the irrigation box 330 meet the irrigation requirements of the plants in the planting area 200 .

Optionally, as shown in FIG. 1, a second pressure gauge 420 is provided on the branch water supply pipe 352 connected to the rain collection tank 320, and the second pressure gauge 420 is electrically connected to the controller. For the pressure in the rain box 320 , the controller can control the working state of the water pump and the corresponding switch valve 360 according to the signal transmitted by the second pressure gauge 420 , so that the water supply station 340 can replenish water to the rain collection box 320 .

Optionally, as shown in FIG. 1 , a flushing valve 370 is arranged on the pipeline, and the pipeline can be flushed through the flushing valve 370 to ensure the smooth flow of the pipeline.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the application. scope.

Claims (10)

1. A sand control device, characterized in that a plurality of the sand control devices are spliced with each other to define a planting area; the desertification control device comprises:

the box body is configured to be partially embedded into a sand layer, and a side wall surface of the box body facing the planting area is a water-retaining layer;

the water conveying pipeline is arranged in the box body;

the first end of the branch pipe section is communicated with the water conveying pipeline, and the second end of the branch pipe section stretches into the water retaining layer;

the water seepage conduit penetrates through the side wall of the box body and is communicated with the water conveying pipeline, the part, extending out of the box body, of the water seepage conduit is configured to be buried in the sand layer, and the water outlet end of the water seepage conduit extends to the vicinity of the root system of plants in the planting area;

after the box bodies are spliced, the water delivery pipelines in the box bodies are mutually communicated, and the water inlet of one water delivery pipeline is connected with an external water source.

2. The sand control device of claim 1, wherein the water retention layer comprises a fertilizer layer, a coarse sand layer, a fine sand layer, and a clay layer, the coarse sand layer being disposed on a side of the fertilizer layer facing the planting area, the fine sand layer being disposed on a side of the coarse sand layer facing the planting area, the clay layer being disposed on a side of the fine sand layer facing the planting area;

the second end of the branch pipe section extends into the fertilizer layer.

3. A sand control device according to claim 2, wherein the main body portion of the branch pipe section is provided with a bending section.

4. The sand control device of claim 1, further comprising a rain collecting assembly, wherein the rain collecting assembly comprises a rain collecting umbrella and a first rain guiding pipe, one end of the first rain guiding pipe extends into the box body and is communicated with the water conveying pipeline, the rain collecting umbrella is arranged above the box body and is connected with the first rain guiding pipe, and rainwater collected by the rain collecting umbrella can be guided into the water conveying pipeline through the first rain guiding pipe.

5. The sand control device of claim 4, wherein the rain collecting assembly further comprises a canopy, the canopy is mounted at the other end of the first rain pipe and is communicated with the first rain pipe, the rain collecting umbrella is arranged between the canopy and the box body, the edge of the rain collecting umbrella exceeds the canopy, the first rain pipe penetrates through the rain collecting umbrella, and a hole site for rain water in the rain collecting umbrella to enter is arranged on the side wall of the first rain pipe.

6. The sand control device of claim 5, wherein the rain collecting assembly further comprises a second rain pipe, the second rain pipe is wound around and arranged in the box body, one end of the second rain pipe is communicated with one end of the first rain pipe, and the other end of the second rain pipe is communicated with the water conveying pipeline.

7. The sand control device of claim 6, wherein a one-way valve is disposed between the second rain pipe and the water pipe.

8. A photovoltaic desertification control system comprising a water supply module and a plurality of desertification control devices of any one of claims 1-7;

the sand control devices are mutually spliced and define the planting area;

the water supply module comprises an irrigation tank, a water supply station, a water pump and a monitoring module, wherein the irrigation tank is connected with the water supply station through a pipeline, the water pump is connected in series to the pipeline, a switching valve is arranged on the pipeline, the monitoring module is electrically connected with the water pump, and the monitoring module is configured to acquire the water quantity in the irrigation tank and control the start and stop of the water pump.

9. The photovoltaic desertification control system of claim 8, wherein the water supply module further comprises a rain collection tank and a rain collection trough, the rain collection trough is mounted on a photovoltaic assembly, the rain collection tank is in communication with the rain collection trough, the rain collection tank is connected with the irrigation tank through a pipeline, the rain collection tank is connected with the water supply station through the pipeline, water in the rain collection tank and the irrigation tank can automatically flow into the water supply station through the pipeline, and the water pump is configured to drive water in the water supply station into the water supply station and the irrigation tank through the pipeline.

10. The photovoltaic desertification control system of claim 9, wherein said monitoring module comprises a water volume monitor mounted in said irrigation tank, a first pressure gauge mounted on said pipeline, and a controller, said water volume monitor, said first pressure gauge, said water pump, and said on-off valve being electrically connected to said controller, respectively.