System capable of switching spray irrigation and infiltrating irrigation

Abstract

The utility model discloses a system capable of switching spray irrigation and infiltrating irrigation. A water collecting tank is horizontally arranged at the corresponding position of the lower edge of a photovoltaic panel unit; the water collecting well is arranged below the water outlet end of the water collecting tank; the buried pool is connected with the water-collecting well through a water-collecting pipeline; the water storage tank is arranged on the ground; an inlet of the water suction pump is connected with a water suction pipe extending to the bottom of the buried water tank, and an outlet of the water suction pump is connected with a water inlet pipeline communicated with the water storage tank; the sprinkling irrigation unit is connected with a water outlet pipeline extending out of an outlet of the water storage tank, so that sprinkling irrigation can be performed on a soil body below the photovoltaic panel unit; the infiltrating irrigation unit is connected with a water outlet pipeline extending out of an outlet of the water storage tank, and therefore infiltrating irrigation can be conducted on the soil body below the photovoltaic panel unit. According to the invention, occupation of limited space on the ground is greatly reduced, balanced sprinkling irrigation is realized through unified collection and distribution, and switching of irrigation modes can be carried out.

Description

Technical Field

[0001] This invention belongs to the field of irrigation technology, specifically relating to a system capable of switching between sprinkler irrigation and seepage irrigation. Background Technology

[0002] Patent publication number CN222101026U discloses a rainwater collection and secondary distribution device under a photovoltaic panel. After collecting rainwater, the device distributes the collected rainwater evenly to the shaded area under the panel via a connected water distribution device, allowing vegetation to grow normally. This device mainly has the following problems:

[0003] 1. Since each photovoltaic panel needs to be equipped with this device, the installation cost is high, and it is impossible to achieve unified allocation of irrigation water. In addition, a large number of water storage tanks will occupy more ground space.

[0004] 2. Since both sprinkler irrigation pipes and water pipes are installed on the ground, in some areas where grazing is required, the sprinkler irrigation pipes and water pipes may be damaged by livestock trampling on them, resulting in high maintenance costs and limiting their widespread application.

[0005] 3. Sprinkler irrigation can be affected by wind and shift due to strong winds, which exacerbates the unevenness of irrigation for plants. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a system that can switch between sprinkler irrigation and seepage irrigation, realize the unified collection and secondary balanced distribution of rainwater, and switch between sprinkler irrigation and seepage irrigation according to site conditions.

[0007] To address the problems of existing technologies, this invention discloses a system capable of switching between sprinkler irrigation and drip irrigation, comprising:

[0008] A water collection tank is horizontally positioned at the lower edge of the photovoltaic panel unit.

[0009] A water collection well is located below the water outlet of the water collection tank.

[0010] An underground water tank, which is connected to a collection well via a collection pipeline;

[0011] A water storage tank is installed on the ground;

[0012] A water pump, the inlet of which is connected to a pumping pipe extending to the bottom of the underground water tank, and its outlet is connected to an inlet pipe leading into the water storage tank, the inlet pipe being equipped with an inlet valve;

[0013] A sprinkler unit is connected to a water outlet pipe extending from the outlet of the water storage tank, thereby enabling sprinkler irrigation of the soil below the photovoltaic panel unit.

[0014] The irrigation unit is connected to the outlet pipe extending from the outlet of the water storage tank, thereby enabling irrigation of the soil below the photovoltaic panel unit.

[0015] Furthermore, the sprinkler unit includes a sprinkler pipeline and an irrigation pump. The sprinkler pipeline is located on the back of the photovoltaic panel unit, and its inlet is connected to an outlet pipeline extending from the outlet of the water storage tank. The inlet height of the sprinkler pipeline is less than the outlet height of the water storage tank. The irrigation pump is located in the outlet pipeline.

[0016] Furthermore, the sprinkler pipeline includes a main sprinkler pipe and a plurality of branch sprinkler pipes symmetrically connected to both sides of the main sprinkler pipe, wherein the branch sprinkler pipes are equipped with sprinkler heads; and the main sprinkler pipe is equipped with sprinkler valves.

[0017] Furthermore, the drip irrigation unit includes:

[0018] The main drainage pipe has its inlet connected to the connection between the sprinkler irrigation pipe and the outlet pipe.

[0019] A drainage branch pipe, the inlet of which is connected to the outlet of the main drainage pipe;

[0020] A drainage valve is installed on the main drainage pipe.

[0021] Furthermore, the drip irrigation unit includes:

[0022] The main drainage pipe has its inlet connected to the connection between the sprinkler irrigation pipe and the outlet pipe, and its outlet connected to the collection pipe; the collection pipe is provided with drainage holes that also serve as drainage pipes.

[0023] A drainage valve is installed on the main drainage pipe;

[0024] A water collection valve is provided on the portion of the water collection pipeline that extends into the underground water tank.

[0025] Furthermore, the underground water tank is equipped with a first level gauge and a second level gauge. The probe of the first level gauge is located near the top of the tank, and the probe of the second level gauge is located near the bottom of the tank, with a height greater than that of the inlet of the pumping pipe.

[0026] Furthermore, the outlet pipeline is equipped with an outlet valve and a flow meter located after the pump.

[0027] Furthermore, it also includes a water inlet channel, which is located below the gap between two adjacent photovoltaic panels on the left and right sides, and the water outlet of the water inlet channel corresponds to the water collection channel.

[0028] The beneficial effects of this invention are as follows:

[0029] 1. This invention uses an underground water tank to collect rainwater from a photovoltaic power station within a preset range, and uses multiple water storage tanks to distribute rainwater to the ground below the photovoltaic panel units within the preset range. Most components or facilities are located underground or above ground, which greatly reduces the occupation of limited ground space, and achieves balanced irrigation through unified collection and distribution.

[0030] 2. The present invention also uses seepage drainage technology to replace or assist sprinkler irrigation technology to irrigate the vegetation under the photovoltaic panel unit, thereby meeting the needs of situations where normal sprinkler irrigation is not possible under strong wind conditions. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0032] Figure 2 for Figure 1 A perspective view of the back of the photovoltaic panel unit in the illustrated embodiment;

[0033] Figure 3 for Figure 1 Top view of the photovoltaic panel unit in the embodiment shown;

[0034] Figure 4 for Figure 1 A schematic diagram of the pipeline connection in the illustrated embodiment (only 2 sets of photovoltaic panels are shown, with 5 photovoltaic panel units in each set);

[0035] Figure 5 This is a schematic diagram of the structure of Example 2;

[0036] Figure 6 for Figure 5 The diagram shows the pipeline connection of the embodiment shown (only 2 sets of photovoltaic panels are shown, with 5 photovoltaic panel units in each set).

[0037] Figure label:

[0038] 1. Water collection trough; 2. Water collection well; 3. Grating; 4. Buried water tank; 5. Manhole; 6. Vent pipe; 7. Water storage tank; 8. Water pump; 9. Pump well; 10. Pumping pipe; 11. Sprinkler main pipe; 12. Sprinkler branch pipe; 13. Sprinkler head; 14. Water outlet valve; 15. Flow meter; 16. First level gauge; 17. Second level gauge; 18. Sprinkler valve; 19. Drainage valve; 20. Water intake trough; 21. Water collection valve; 22. Water collection branch pipe; 23. Water collection main pipe; 24. Water inlet main pipe; 25. Water inlet branch pipe; 26. Water outlet pipe; 27. Water inlet valve; 28. Drainage main pipe; 29. ​​Drainage branch pipe; 30. Photovoltaic panel unit; 31. Irrigation pump. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention. Example

[0040] like Figures 1 to 4 As shown, a system capable of switching between sprinkler irrigation and drip irrigation includes: a water collection trough 1, a water collection well 2, an underground water tank 4, a water storage tank 7, a water pump 8, a sprinkler irrigation unit, and a drip irrigation unit.

[0041] The related facilities, equipment, and components in this invention are configured according to the installed capacity of the photovoltaic power station. For example, for a photovoltaic panel with an actual power generation capacity of 110W, one megawatt of installed capacity should be equipped with 10,000 photovoltaic panels, divided into 10 groups, that is, each group has 1,000 photovoltaic panels. Each photovoltaic unit uses a 2×2 array to install photovoltaic panels, so each group of photovoltaic panel units has 250 units. Therefore, for a photovoltaic power station, one underground water tank 4 is configured for each megawatt, and one water storage tank 7 is configured for each group of photovoltaic panels.

[0042] The water collection trough 1 is horizontally positioned at the lower edge of the photovoltaic panel unit 30. Its function is to collect rainwater flowing down from the surface of the photovoltaic panel unit 30 during rainfall. Therefore, the position of the water collection trough 1 can be determined according to the tilt angle of the photovoltaic panel, which is a conventional method and will not be elaborated further.

[0043] The water collection well 2 is located below the outlet of the water collection trough 1 and is buried underground. The wellhead of the water collection well 2 is equipped with a grate 3, which allows water to flow in while preventing large objects from entering. Since each photovoltaic panel unit 30 collects water through one water collection trough 1, and multiple photovoltaic panel groups are arranged in the same direction, both ends of the two water collection troughs 1 can be open, allowing them to share a single water collection well 2. One end of the water collection trough 1 can also be sealed, while the other end remains open, allowing rainwater to flow out from the open end and fall into the water collection well 2 below.

[0044] The underground water tank 4 is also buried underground and connected to the collection well 2 via a collection pipeline. A manhole 5 and a vent pipe 6 are installed on the top of the underground water tank 4. The collection pipeline includes multiple collection branch pipes 22 and a main collection pipe 23 connecting the collection branch pipes 22. Each collection branch pipe 22 is connected to a corresponding collection well 2, and the collected water then flows through the collection branch pipes 22 to the underground water tank 4. The water storage tank 7 is located above ground.

[0045] The water pump 8 is also installed underground, with a pump well 9 reserved on one side of the underground water tank 4, and the water pump 8 is installed in the pump well 9. The inlet of the water pump 8 is connected to the water pumping pipe 10 extending to the bottom of the underground water tank 4, and its outlet is connected to the water inlet pipe leading to the water storage tank 7. The water inlet pipe includes a main water inlet pipe 24 and a branch water inlet pipe 25. The main water inlet pipe 24 is connected to the outlet of the water pump 8, and the branch water inlet pipe 25 is connected to the main water inlet pipe 24 and the inlet of each water storage tank 7. The branch water inlet pipe 25 is equipped with an inlet valve 27.

[0046] The sprinkler unit is connected to a water outlet pipe 26 extending from the outlet of the water storage tank 7, enabling sprinkler irrigation of the soil below the photovoltaic panel unit 30. The sprinkler unit includes a sprinkler pipe and an irrigation pump 31. The sprinkler pipe is located on the back of the photovoltaic panel unit 30, and its inlet is connected to the water outlet pipe 26 extending from the outlet of the water storage tank 7. The inlet height of the sprinkler pipe is less than the outlet height of the water storage tank 7. The irrigation pump 31 is located within the water outlet pipe 26. This means that even when not using sprinkler irrigation, water from the water storage tank 7 can flow into the sprinkler pipe by gravity, achieving non-powered drip irrigation. When the irrigation pump 31 is operating, irrigation is performed through the sprinkler heads 13.

[0047] As a preferred example, the sprinkler irrigation pipeline includes a main sprinkler irrigation pipe 11 and a number of branch sprinkler irrigation pipes 12 connected symmetrically on both sides of the main sprinkler irrigation pipe. The branch sprinkler irrigation pipes 12 are equipped with sprinkler heads 13; the main sprinkler irrigation pipe is equipped with sprinkler irrigation valves 18.

[0048] As a preferred example, the water outlet pipe 26 is equipped with a water outlet valve 14 and a flow meter 15 located after the pump. This allows for more accurate control of the irrigation volume on the ground below each photovoltaic unit, ensuring uniformity.

[0049] As a preferred example, to achieve automatic control, the buried water tank 4 is equipped with a first level gauge 16 and a second level gauge 17. The probe of the first level gauge 16 is positioned near the top of the tank, and the probe of the second level gauge 17 is positioned near the bottom of the tank, with a height greater than the inlet of the pumping pipe 10. When the liquid level reaches the detection range of the first level gauge 16, the sprinkler irrigation is activated; when the liquid level falls to the detection range of the second level gauge 17, the sprinkler irrigation is stopped.

[0050] As a preferred example, the water inlet branch pipe 25 is equipped with a water inlet valve 27, and the sprinkler irrigation main pipe 11 is equipped with a sprinkler irrigation valve 18.

[0051] As a preferred embodiment, this device also provides a seepage drainage function through a seepage irrigation unit. The seepage irrigation unit is connected to an outlet pipe 26 extending from the outlet of the water storage tank 7, thereby enabling seepage irrigation of the soil beneath the photovoltaic panel unit 30. Specifically, the seepage irrigation unit includes a main seepage drainage pipe 28, a branch seepage drainage pipe 29, and a seepage drainage valve 19. The inlet of the main seepage drainage pipe 28 connects to the junction of the sprinkler irrigation pipe and the outlet pipe 26. The branch seepage drainage pipe 29 is buried below the ground surface beneath the photovoltaic unit, and its inlet connects to the outlet of the main seepage drainage pipe 28. The seepage drainage valve 19 is installed on the main seepage drainage pipe 28.

[0052] As a preferred embodiment, since there is an installation gap between two adjacent photovoltaic panels, the device also includes a water inlet trough 20 to collect rainwater leaking through the gap. The water inlet trough 20 is located below the gap between the two adjacent photovoltaic panels, and the outlet of the water inlet trough 20 corresponds to the water collection trough 1. This improves the rainwater collection capacity. Because the installation gap between two photovoltaic panel units 30 is larger, a smaller diameter semi-circular trough 20 can be used for smaller gaps between two photovoltaic panels within a photovoltaic panel unit 30, while a wider rectangular trough 20 can be used for larger gaps between two photovoltaic panel units 30. This balances manufacturing cost and installation difficulty.

[0053] When it rains, some of the rainwater flows along the surface of the photovoltaic panels into the water collection trough 1, and then through the water collection well 2 and the water collection pipeline into the underground water tank 4. When the rainfall ends and the surface vegetation needs irrigation, the water pump 8 is started to pump a fixed amount of water into the water storage tank 7, and then the outlet valve 14 is opened while the seepage valve 19 is kept closed. At this time, the water in the water storage tank 7 will enter each sprinkler pipeline through the outlet pipeline 26 for sprinkler irrigation.

[0054] When seepage drainage is required, opening the seepage valve 19 allows some water to enter the seepage pipeline and seep into the ground. The drip valve can be closed or opened depending on the actual situation. During seepage irrigation, the irrigation pump 31 does not need to be turned on, and gravity flow can still occur in the pipeline. Therefore, the water in the water storage tank 7 will flow into the seepage irrigation unit under gravity and seep into the ground. Example

[0055] like Figure 4 and Figure 5 As shown, the difference between this embodiment and embodiment one is that the seepage function in this embodiment is realized by the water collection pipeline. Specifically, the seepage irrigation unit includes a seepage main pipe 28, a seepage valve 19 and a water collection valve 21.

[0056] The inlet of the main drainage pipe 28 connects to the junction of the sprinkler irrigation pipe and the outlet pipe 26, and its outlet connects to the main collection pipe 23. The collection branch pipe 22 is equipped with drainage holes and also serves as a drainage pipe. The drainage valve 19 is installed on the main drainage pipe 28. The collection valve 21 is installed on the portion of the collection pipe that extends into the underground water tank 4.

[0057] In this embodiment, during rainfall, since the flow rate of the water collection branch pipe 22 is much greater than the flow rate of the infiltration, most of the rainwater will still be discharged into the underground water tank 4 for recycling. After the rainfall ends and sprinkler irrigation and / or infiltration are needed, the water collection valve 21 is closed and the infiltration valve 19 is opened. The water in the water storage tank 7 will then enter the sprinkler irrigation pipeline and the infiltration pipeline respectively through the outlet pipe 26. The advantage of this embodiment is that it reduces the number of infiltration pipes and lowers costs.

[0058] It should be noted that the electrical equipment and components in this device are all powered by a photovoltaic power station, and the related control processes are all existing technologies, so they will not be described in detail. In the pipeline of this invention, the main pipe is used for collection or distribution, and the corresponding pipes are connected by corresponding joints, which is also existing technology, so it will not be described in detail.

[0059] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A system capable of switching between sprinkler irrigation and drip irrigation, characterized in that: include: Water collection tank (1), which is horizontally arranged at the lower edge of the photovoltaic panel unit (30); A water collection well (2) is located below the outlet end of the water collection tank (1); An underground water tank (4) is connected to a water collection well (2) via a water collection pipeline. A water storage tank (7) is installed on the ground; A water pump (8) is connected to a water pumping pipe (10) extending to the bottom of the underground water tank (4) at its inlet and to a water inlet pipe that leads into the water storage tank (7) at its outlet. The water inlet pipe is equipped with a water inlet valve (27). The sprinkler unit is connected to the outlet pipe (26) extending from the outlet of the water storage tank (7), thereby enabling sprinkler irrigation of the soil below the photovoltaic panel unit (30); The irrigation unit is connected to the outlet pipe (26) extending from the outlet of the water storage tank (7), thereby enabling the irrigation of the soil below the photovoltaic panel unit (30).

2. The system capable of switching between sprinkler irrigation and drip irrigation according to claim 1, characterized in that: The sprinkler unit includes a sprinkler pipeline and an irrigation pump (31). The sprinkler pipeline is located on the back of the photovoltaic panel unit (30), and its inlet is connected to the outlet pipeline (26) extending from the outlet of the water storage tank (7). The inlet height of the sprinkler pipeline is less than the outlet height of the water storage tank (7). The irrigation pump (31) is located in the outlet pipeline (26).

3. A system capable of switching between sprinkler irrigation and drip irrigation according to claim 2, characterized in that: The sprinkler pipeline includes a main sprinkler pipe (11) and a plurality of branch sprinkler pipes (12) symmetrically connected to both sides of the main sprinkler pipe. The branch sprinkler pipes (12) are equipped with nozzles (13). The main sprinkler pipe is equipped with sprinkler valves (18).

4. A system capable of switching between sprinkler irrigation and drip irrigation according to claim 2, characterized in that: The drip irrigation unit includes: The main drainage pipe (28) is connected at the connection between the sprinkler irrigation pipe and the outlet pipe (26). A drainage branch pipe (29) is provided, the inlet of which is connected to the outlet of the main drainage pipe (28); Drainage valve (19) is provided on the drainage main pipe (28).

5. A system capable of switching between sprinkler irrigation and drip irrigation according to claim 2, characterized in that: The drip irrigation unit includes: The main drainage pipe (28) has its inlet connected to the connection between the sprinkler irrigation pipe and the outlet pipe (26), and its outlet connected to the water collection pipe; the water collection pipe is provided with drainage holes and also serves as a drainage pipe. A drainage valve (19) is provided on the main drainage pipe (28); Water collection valve (21) is provided on the portion of the water collection pipeline that extends into the underground water tank (4).

6. A system capable of switching between sprinkler irrigation and drip irrigation according to any one of claims 1 to 5, characterized in that: The underground water tank (4) is equipped with a first level gauge (16) and a second level gauge (17). The probe of the first level gauge (16) is located near the top of the tank, and the probe of the second level gauge (17) is located near the bottom of the tank. The inlet of the second level gauge (17) is located at a height greater than that of the pumping pipe (10).

7. A system capable of switching between sprinkler irrigation and drip irrigation according to any one of claims 1 to 5, characterized in that: The outlet pipe (26) is equipped with an outlet valve (14) and a flow meter (15) located after the pump.

8. A system capable of switching between sprinkler irrigation and drip irrigation according to any one of claims 1 to 5, characterized in that: It also includes a water inlet trough (20), which is located below the gap between two adjacent photovoltaic panels on the left and right sides, and the water outlet of the water inlet trough (20) corresponds to the water collection trough (1).

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