Gas-liquid coupling multi-mode switching pumped storage irrigation device and use method thereof

Abstract

The invention discloses a gas-liquid coupling multi-mode switching pumped storage irrigation device and a using method thereof. The gas-liquid coupling multi-mode switching pumped storage irrigation device comprises a power generation assembly, a deep water pump, a first water storage tank, a second water storage tank, a multi-way reversing valve and a gas-liquid mixing valve. The power generation assembly converts solar energy and wind energy into electric energy to drive the deep water pump to pump water, water is stored in the first water storage tank and compressed air, and the compressed air is transmitted to the second water storage tank through the third electromagnetic valve to achieve air pressure energy storage. When power generation is needed, the corresponding electromagnetic valves are opened, and water in the water storage tank drives the power generation assembly to supply power under the action of compressed air pressure; during irrigation, the multi-way reversing valve can switch a drip irrigation mode, an atomization irrigation mode or a water circulation mode. The device solves the problems that traditional agricultural irrigation is insufficient in energy utilization, poor in energy storage, single in irrigation, waste in water resources and the like, efficient utilization of green energy, switching of multiple irrigation modes, stable in energy storage and water resource circulation are achieved, and the modern agricultural intelligent irrigation requirement is met.

Description

Technical Field

[0001] The present invention relates to the field of agricultural irrigation, and in particular to a gas-liquid coupled multi-mode switching pumped storage irrigation device and a method of using the same. Background Art

[0002] In the development of modern agriculture, the efficiency and environmental friendliness of irrigation systems are crucial to sustainable agricultural development. Currently, traditional agricultural irrigation systems primarily rely on mains electricity to drive water pumps. This not only consumes large amounts of non-renewable energy, resulting in high operating costs, but also places significant pressure on the environment, making it difficult to meet the needs of green agricultural development.

[0003] Existing agricultural irrigation systems face numerous technical bottlenecks. First, energy utilization is insufficient, failing to effectively utilize abundant green energy sources such as solar and wind power, resulting in energy waste. Second, energy storage methods are suboptimal, lacking a stable and reliable energy storage system, making it impossible to effectively store excess electricity, making it difficult to meet irrigation needs at night or when energy supply is insufficient. Third, irrigation methods are limited, typically only offering a single irrigation mode, and unable to flexibly switch irrigation methods based on the different growth stages and water requirements of crops, affecting irrigation effectiveness and water resource utilization efficiency. Fourth, water resources are severely wasted. The irrigation process lacks an effective water recycling mechanism, resulting in a large amount of irrigation water being directly discharged without being fully absorbed by crops, resulting in a significant waste of water resources.

[0004] Therefore, a new type of pumping and energy storage irrigation device is urgently needed to solve the technical problems of the existing agricultural irrigation system, such as insufficient energy utilization, unsatisfactory energy storage methods, single irrigation method and waste of water resources, so as to achieve efficient utilization of green energy, flexible switching of multiple irrigation methods, stable and reliable energy storage and recycling of water resources, and meet the urgent needs of modern agriculture for efficient, environmentally friendly and intelligent irrigation. Summary of the Invention

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a gas-liquid coupled multi-mode switching pumped storage irrigation device, comprising:

[0006] Power generation components for converting natural energy into electrical energy;

[0007] a deep water pump, electrically connected to the power generation assembly, for pumping water at a low position to the first water storage tank and the second water storage tank;

[0008] A first water storage tank and a second water storage tank, wherein the top of the first water storage tank is connected to the second water storage tank via a pipe, and a third solenoid valve is provided on the pipe; a first solenoid valve is provided at the drain pipe at the lower end of the first water storage tank, and a second solenoid valve is provided at the drain pipe at the lower end of the second water storage tank;

[0009] a power generation assembly, the inlet of which is in communication with the drain pipes of the first and second water storage tanks;

[0010] A multi-way reversing valve, whose inlet is connected to the drainage outlet of the power generation component, and the outlets are respectively connected to the drip irrigation component, the atomizing water pipe and the return pipe; a gas-liquid mixing valve, whose inlet is respectively connected to the atomizing water pipe and the fourth solenoid valve at the upper end of the second water storage tank, and the outlet is connected to the atomizing nozzle through a pipeline.

[0011] Preferably, the upper ends of the first water storage tank and the second water storage tank are both provided with one-way air inlet valves. When the air pressure in the tank is lower than the external air pressure, external air enters the tank through the one-way air inlet valves.

[0012] Preferably, an air pressure sensor is provided inside the second water storage tank and is connected to the air pressure automatic compensation system; when the air pressure in the second water storage tank drops to a set threshold, the air pressure automatic compensation system closes the first solenoid valve, starts the deep water pump to fill water into the first water storage tank, and opens the third solenoid valve to pressurize the water or air in the first water storage tank into the second water storage tank to maintain stable air pressure.

[0013] Preferably, the multi-way reversing valve includes a reversing valve water inlet, a reversing valve body, a drip irrigation switch valve, a return water switch valve and an atomizing switch valve; the reversing valve water inlet is connected to the water outlet of the power generation component, and the cavity in the reversing valve body is connected to the drip irrigation switch valve, the return water switch valve and the atomizing switch valve through a joint respectively; the drip irrigation switch valve, the return water switch valve and the atomizing switch valve are all electromagnetically controlled, and the water outlet flow rate and speed can be adjusted.

[0014] Preferably, the gas-liquid mixing valve includes a gas-liquid mixing valve housing, a mixing valve core and a regulating valve core; the mixing valve core is installed in the gas-liquid mixing valve housing, and a regulating valve core is installed on the upper end thereof; the lower end of the gas-liquid mixing valve housing is connected to the atomizing water pipe, the left pipe is connected to the fourth solenoid valve, and the right side is connected to the pipe of the atomizing nozzle.

[0015] Preferably, the mixing valve core is sealed to the lower end of the gas-liquid mixing valve housing, and a "∩"-shaped cavity is formed between its upper end and the inner wall of the gas-liquid mixing valve housing; the regulating valve core can move up and down to adjust the size of the top cavity, thereby controlling the airflow rate.

[0016] Preferably, the separator includes a cylinder and a symmetrical separator with a pointed angle connected to the cylinder; a first channel is provided at the center of the cylinder, and the cylinder is provided with a through hole so that the first channel is connected to the space inside the separator; all cylinders in a vertical row are connected to the first cavity through the first channel, and the first cavity is connected to the high-pressure gas source through the gas source channel.

[0017] Preferably, the inner side of the separator sheet of the separator is symmetrically and staggeredly provided with barrier protrusions, which are used to make the airflow impact the barrier protrusions to form a self-excited oscillation structure, thereby breaking up the water fluid in the main channel or promoting the fusion of water-soluble pesticides and water fluid.

[0018] Preferably, the inner side of the separator sheet of the separator is symmetrically and staggeredly provided with barrier protrusions, which are used to make the airflow impact the barrier protrusions to form a self-excited oscillation structure, thereby breaking up the water fluid in the main channel or promoting the fusion of water-soluble pesticides and water fluid.

[0019] The present invention also discloses an irrigation method of a gas-liquid coupled multi-mode switching pumped storage irrigation device, comprising the following steps:

[0020] Step 1: The power generation component converts natural energy into electrical energy, driving the deep water pump to pump water from the low position into the first water storage tank;

[0021] Step 2: When the water level in the first water tank rises to a certain level, compressed air enters the second water tank through the third solenoid valve, and then the water medium flows into the second water tank and further compresses the air inside it;

[0022] Step 3: When power generation is required, the first solenoid valve and the second solenoid valve are opened, and the water in the water storage tank flows to the power generation component under the action of compressed air pressure to generate power;

[0023] Step 4: The multi-way reversing valve switches according to demand: if irrigation is not required, connect the return pipe to allow water to flow back to the deep well or low-level water storage tank; if drip irrigation is required, connect the drip irrigation component;

[0024] If atomized irrigation is required, the gas-liquid mixing valve is connected and the fourth solenoid valve is opened at the same time, so that the compressed air and water in the second water storage tank are mixed and atomized in the gas-liquid mixing valve and then sprayed out through the atomizing nozzle.

[0025] Beneficial effects:

[0026] The present invention integrates renewable energy sources such as solar energy and wind energy through power generation components, reduces dependence on traditional mains electricity, reduces energy consumption and carbon emissions, and meets the needs of environmentally friendly agriculture.

[0027] The present invention uses water and compressed air as energy storage media and utilizes water storage tanks to achieve bidirectional conversion of "electrical energy-potential energy-electrical energy", solving the intermittent problem of renewable energy and ensuring stable power supply at night or during energy low periods.

[0028] The present invention supports drip irrigation, mist irrigation and water circulation modes through a multi-way reversing valve and an atomization module. It can accurately adjust the irrigation method according to the crop growth stage and climatic conditions, improve water resource utilization efficiency and reduce waste, and realize flexible switching between multiple irrigation methods.

[0029] The present invention returns unused irrigation water to the low-level water storage space through the return pipe, forming a closed circulation system, avoiding water resource waste, and meeting the requirements of sustainable agricultural development.

[0030] The present invention improves the automation level of the device through the automatic air pressure compensation system, electromagnetic control valve and modular water storage tank design, has strong scalability, and is suitable for the intelligent irrigation needs of farmland of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the overall structure of a specific embodiment of the present invention;

[0033] Figure 3 A three-dimensional view of a specific embodiment of the present invention;

[0034] Figure 4 This is an exploded view of the multi-way reversing valve and the gas-liquid mixing valve of the present invention;

[0035] Figure 5 is a cross-sectional view of the gas-liquid mixing valve of the present invention;

[0036] Figure 6 is a cross-sectional view of the mixing valve core of the present invention;

[0037] Figure 7 For the present invention Figure 6 A partial enlarged view of .

[0038] In the figure: power generation component 1, deep water pump 2, first water storage tank 3, second water storage tank 4, first solenoid valve 5, second solenoid valve 6, third solenoid valve 7, fourth solenoid valve 8, power generation component 9, multi-way reversing valve 10, gas-liquid mixing valve 11, lighting component 12, atomizing nozzle 13, drip irrigation component 14, return pipe 15, atomizing water pipe 16; reversing valve water inlet 101, reversing valve body 102, drip irrigation switch valve 103, return water switch valve 104, atomizing switch valve 105; gas-liquid mixing valve housing 111, mixing valve core 112, regulating valve core 113; main channel 1121, separator 1122, first channel 1123a, second channel 1123b, air source channel 1124, first cavity 1125a, second cavity 1125b; cylinder 200, separator 201, blocking protrusion 202. DETAILED DESCRIPTION

[0039] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0040] The present invention discloses a gas-liquid coupled multi-mode switching pumped storage irrigation device for converting green energy such as solar energy and wind energy into electrical energy, and then using the electrical energy to pump out water at a low position to irrigate plants. At the same time, water is used as an energy storage medium to store excess electrical energy, which can be used for nighttime electricity use. The device aims to solve technical problems such as insufficient energy utilization, unsatisfactory energy storage methods, single irrigation methods, and waste of water resources in existing agricultural irrigation systems, and achieve the technical effects of efficient utilization of green energy, flexible switching of multiple irrigation methods, stable and reliable energy storage, and recycling of water resources, thereby meeting the needs of modern agriculture for efficient, environmentally friendly, and intelligent irrigation.

[0041] like Figure 1 The gas-liquid coupling multi-mode switching pumped storage irrigation device shown in the figure includes a power generation component 1 and a deep water pump 2, a first water storage tank 3, a second water storage tank 4 and a power generation component 9; the power generation component 1 is electrically connected to the deep water pump 2; the deep water pump 2 is connected to the first water storage tank 3 through a water pipe; the top of the first water storage tank 3 is connected to the second water storage tank 4 through a pipe and a third solenoid valve 7 is provided on the pipe; the lower end of the first water storage tank 3 is provided with a drain pipe and the drain pipes are respectively provided with a first solenoid valve 5; the lower end of the second water storage tank 4 is provided with a drain pipe and the drain pipes are respectively provided with a third solenoid valve 7; Two solenoid valves 6; a fourth solenoid valve 8 is provided at the upper end of the second water storage tank 4, and the fourth solenoid valve 8 is connected to the inlet of the gas-liquid mixing valve 11 through an air pipe; the drain pipe of the first water storage tank 3 and the drain pipe of the second water storage tank 4 are connected to the inlet of the power generation component 9; the drain outlet of the power generation component 9 is connected to the multi-way reversing valve 10; the multi-way reversing valve 10 is connected to the drip irrigation component 14, the atomizing water pipe 16 and the return pipe 15; the atomizing water pipe 16 is connected to the inlet of the gas-liquid mixing valve 11; the outlet of the gas-liquid mixing valve 11 is connected to the atomizing nozzle 13 through a pipe.

[0042] The power generation component 1 is used to convert natural energy into electrical energy. In this embodiment, the power generation component 1 is composed of a solar panel, an inverter and a battery pack; it should be noted that the power generation component 1 can also be a wind power generation component, a wind and solar combined power generation component, etc.

[0043] The deep water pump 2 is used to pump water from a lower place into the first water storage tank 3. The deep water pump 2 is electrically connected to the power generation component 1.

[0044] The first water storage tank 3 is used to store water pumped up by the deep water pump 2. When the water inside the first water storage tank 3 is stored to a certain level, the water compresses the air and is connected to the second water storage tank 4 through the third solenoid valve 7. At this time, the compressed air at the top of the first water storage tank 3 is squeezed into the second water storage tank 4. As the first water storage tank 3 is full, the water medium continues to flow into the second water storage tank 4, and the air in the upper part of the second water storage tank 4 continues to be compressed. It should be noted that the number of water storage tanks can be increased or decreased according to the scale of power generation and energy storage.

[0045] When the pumping energy storage irrigation device needs illumination at night to promote plant growth, the first solenoid valve 5 and the second solenoid valve 6 are opened. At this time, the water stored in the tank body flows to the power generation component 9 under the action of compressed air pressure and drives the power generation component 9 to generate electricity.

[0046] The multi-way reversing valve 10 switches according to the function. For example, when irrigation is not needed, the multi-way reversing valve 10 connects to the return pipe 15, and the water flowing out of the power generation component 9 flows back to the deep water well of the deep water pump 2 or the water storage tank at a low position to achieve recycling;

[0047] When drip irrigation is required, the multi-way reversing valve 10 is connected to the drip irrigation assembly 14, and the water flowing out of the power generation assembly 9 flows to the drip irrigation assembly 14 to achieve drip irrigation of the plants.

[0048] When atomized irrigation is required, the multi-way reversing valve 10 is connected to the gas-liquid mixing valve 11, and the water flowing out of the power generation component 9 flows to the gas-liquid mixing valve 11. At this time, the fourth solenoid valve 8 is opened, and the compressed air at the top of the second water storage tank 4 is connected to the gas-liquid mixing valve 11. The high-pressure airflow passes through the gas-liquid mixing valve 11 to atomize the water and then sprays it onto the crops from the atomizing nozzle 13.

[0049] It should be noted that the present invention is also provided with an automatic air pressure compensation system. An air pressure sensor is provided inside the second water storage tank 4 for detecting the air pressure value inside the water storage tank. When the compressed air at the top of the second water storage tank 4 flows out with the water medium, the space becomes larger and the air pressure becomes smaller; when the air pressure value reaches the set threshold, the automatic air pressure compensation system starts to operate, the first solenoid valve 5 is closed, and the deep water pump 2 starts to press water into the first water storage tank 3, so that the water level of the first water storage tank 3 rises. At this time, the third solenoid valve 7 is opened, and the water or air above the first water storage tank 3 is pressed into the second water storage tank 4 to keep the internal air pressure stable.

[0050] A one-way air inlet valve is provided at the upper end of the first water storage tank 3 and the second water storage tank 4. When the air pressure inside the water storage tank is lower than the external air pressure, the external air enters the water storage tank through the one-way air inlet valve. When the water level rises, the air inside the water storage tank is compressed. When compressed air energy is needed, the corresponding switch valve can be opened to realize energy recycling.

[0051] In another embodiment, Figure 2 As shown, in this embodiment, the first water storage tank 3 and the second water storage tank 4 are each connected through a separate water inlet pipe and a deep water pump 2. The top of the first water storage tank 3 is connected to the gas-liquid mixing valve 11 through the third solenoid valve 7, and the bottom of the first water storage tank 3 is connected to the power generation component 9 through the first solenoid valve 5. The second water storage tank 4 is connected to the gas-liquid mixing valve 11 through the fourth solenoid valve 8, and the bottom of the second water storage tank 4 is connected to the power generation component 9 through the second solenoid valve 6.

[0052] The first water storage tank 3 and the second water storage tank 4 independently realize the circulating energy storage function, specifically as follows: when the power generation component 1 needs to store energy, the deep water pump 2 draws water at a low position into the first water storage tank 3 and the second water storage tank 4 at the same time. As the water level in the water tank rises, the air is compressed to form energy storage air pressure. When in use, you can choose to use a single water storage tank or multiple water storage tanks at the same time according to the purpose. Specifically, you can open the first solenoid valve 5 under the first water storage tank 3, and the energy storage air pressure of the first water storage tank 3 will press the water out into the power generation component. At this time, when the energy storage air pressure of the first water storage tank 3 drops to the set threshold, the first solenoid valve 5 is closed, and the second solenoid valve 6 is opened. The energy storage air pressure of the second water storage tank 4 continues to press the water out, and the deep water pump 2 presses water into the first water storage tank 3 to increase the energy storage air pressure. This cycle ensures energy storage and the energy storage air pressure can be adjusted according to the purpose of water use. The squeezed water is described as above according to the purpose and is not repeated.

[0053] The first and second water storage tanks can be connected in series or in parallel (with a separate water inlet pipe connected to a deep water pump), and the number of water storage tanks can be flexibly increased or decreased according to the energy storage scale to meet the needs of different agricultural scenarios.

[0054] like Figure 4 As shown; the multi-way reversing valve 10 is connected to the water outlet of the power generation component 9 and is switched according to the purpose of water use; the multi-way reversing valve 10 is described in detail below. The multi-way reversing valve 10 includes a reversing valve water inlet 101, which is used to connect to the water outlet of the power generation component 9, and the reversing valve water inlet 101 is also connected to a reversing valve body 102, and a cavity is set inside the reversing valve body 102, and the cavity is communicated with the drip irrigation switch valve 103, the return water switch valve 104, and the atomization switch valve 105 through a joint respectively; each regulating valve adopts electromagnetic control to adjust the water flow rate and speed. The other end of the drip irrigation switch valve 103 is connected to the drip irrigation assembly 14 through a pipe joint; the other end of the return water switch valve 104 is connected to the return water pipe 15 through a pipe joint; the atomization switch valve 105 is communicated with the water inlet of the gas-liquid mixing valve 11, and one end of the gas-liquid mixing valve 11 is connected to the energy storage air pressure source inside the water storage tank through the fourth solenoid valve 8, the third solenoid valve 7 or the fourth solenoid valve 8 and the third solenoid valve 7; the other end of the gas-liquid mixing valve 11 is connected to the atomization nozzle 13 pipeline.

[0055] like Figure 5 As shown, the gas-liquid mixing valve 11 includes a gas-liquid mixing valve housing 111 , a mixing valve core 112 , and a regulating valve core 113 ; the mixing valve core 112 is installed in the gas-liquid mixing valve housing 111 ; the regulating valve core 113 is installed on the upper end of the mixing valve core 112 .

[0056] Specifically, the lower end of the gas-liquid mixing valve housing 111 is connected to the atomizing water pipe 16, which is used to introduce water into the valve body; the left side pipe of the gas-liquid mixing valve housing 111 is connected to the fourth solenoid valve 8, which is used to introduce the high-pressure gas source into the valve body; the right side of the gas-liquid mixing valve housing 111 is connected to the pipe of the atomizing nozzle 13, which is used to atomize the water and lead it out.

[0057] like Figure 5 In the specific embodiment shown, the mixing valve core 112 is sealedly connected to the lower end of the gas-liquid mixing valve housing 111, and a "∩"-shaped cavity communicating with air is formed between the upper end of the mixing valve core 112 and the inner wall of the gas-liquid mixing valve housing 111; that is, the high-pressure airflow can flow from the left cavity 111a through the top cavity 111b and then out from the right cavity 111c; the regulating valve core 113 can move up and down to adjust the size of the top cavity 111b, thereby controlling the flow rate of the regulating airflow.

[0058] Further Figure 6 As shown, in this embodiment, a main channel 1121 is provided inside the mixing valve core 112, the bottom of which is used to connect to the atomizing water pipe 16 to introduce water into the interior of the valve body, and the top outlet is communicated with the top cavity 111b; it should be further explained that, on both sides of the main channel 1121, there are provided separators 1122 that are uniformly vertical and symmetrically arranged along the central vertical axis of the main channel 1121, and the separators 1122 divide the main channel 1121 into reverse reflux channels with the same number as the main channel.

[0059] like Figure 6 As shown, in this embodiment, the separator 1122 includes a cylinder 200 and a symmetrical separator 201 with a pointed angle connected to the cylinder. A first channel 1123a is provided at the center of the cylinder 200, and the cylinder 200 is provided with a through hole, which allows the first channel 1123a to communicate with the space inside the separator 201; all cylinders 200 in a vertical row are connected to the first cavity 1125a through the first channel 1123a; the first cavity 1125a is connected to the high-pressure gas source through the gas source channel 1124, that is, the high-pressure gas flows through the third solenoid valve 7 or the fourth solenoid valve 8 into the left cavity 111 in the valve core. a. Part of the high-pressure airflow enters the first cavity 1125a through the air source channel 1124, and then is diverted from the first cavity 1125a to each first channel 1123a; and then is blown into the main channel 1121 through the through hole of the cylinder 200; so that part of the airflow decomposes the water into bubble-shaped turbulent water in the main channel 1121 and forms air pressure in the main channel 1121, thereby preventing the water in the main channel 1121 from flowing back under the action of the high-pressure air pressure at the upper end. In addition, when the high-pressure airflow distributed at the top through the separator 1122 enters the main channel 1121, the airflow is blocked by each separator 1122 and forms a backflow, thereby effectively preventing backflow.

[0060] like Figure 6As shown, as another expanded embodiment, the second channel 1123b and second cavity 1125b in another row of separators 1122 communicate with each other. Second cavity 1125b can be connected to other aqueous media, such as water-soluble fertilizers or water-soluble pesticides, through a channel. This allows the water-soluble pesticides to be fully integrated within main channel 1121 and sprayed out through the atomizing nozzle 13 on the right side of gas-liquid mixing valve housing 111. Water-soluble fertilizers or pesticides can be injected simultaneously, utilizing the turbulent flow within the main channel for instant mixing, avoiding the complex processes of traditional mixing equipment, reducing equipment investment, and improving fertilization / pesticide application uniformity. The symmetrical distribution of the separators and the airflow recirculation mechanism effectively prevent liquid backflow, ensuring stable medium injection, especially during high-low pressure switching conditions, to avoid uneven water and fertilizer mixing or equipment damage.

[0061] like Figure 7 As shown, in this embodiment, the inner side of the separator 201 of the separator 1122 is symmetrically and staggeredly arranged with blocking protrusions 202; the blocking protrusions 202 can partially block the airflow from the first channel 1123a. The airflow continuously impacts the blocking protrusions 202, causing the separator 201 to self-oscillate, further breaking up the water fluid in the main channel 1121, thereby forming bubbling water to improve atomization efficiency. Similarly, the water-soluble pesticide can be fully integrated with the water fluid in the main channel 1121. Due to the self-oscillation, the valve core channel can be effectively prevented from being blocked. The formation of bubbling turbulent water disperses the water into finer particles, making the atomized particle size more uniform, improving irrigation coverage and water utilization rate, and significantly improving atomization efficiency, which is particularly suitable for arid areas or cash crops that require precise irrigation.

[0062] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas-liquid coupled multi-mode switching pumped storage irrigation device, characterized in that: include: A power generation component (1) for converting natural energy into electrical energy; A deep water pump (2) electrically connected to the power generation assembly (1) and used to pump water at a low position to the first water storage tank (3) and the second water storage tank (4); A first water storage tank (3) and a second water storage tank (4), wherein the top of the first water storage tank (3) is connected to the second water storage tank (4) via a pipe, and a third solenoid valve (7) is provided on the pipe; a first solenoid valve (5) is provided at the drain pipe at the lower end of the first water storage tank (3), and a second solenoid valve (6) is provided at the drain pipe at the lower end of the second water storage tank (4); A power generation assembly (9), the inlet of which is in communication with the drainage pipes of the first water storage tank (3) and the second water storage tank (4); A multi-way reversing valve (10) has an inlet connected to the drainage outlet of the power generation component (9), and an outlet respectively connected to the drip irrigation component (14), the atomizing water pipe (16) and the return water pipe (15); a gas-liquid mixing valve (11) has an inlet respectively connected to the atomizing water pipe (16) and the fourth solenoid valve (8) at the upper end of the second water storage tank (4), and an outlet connected to the atomizing nozzle (13) through a pipeline.

2. The gas-liquid coupled multi-mode switching pumped storage irrigation device according to claim 1, characterized in that: The upper ends of the first water storage tank (3) and the second water storage tank (4) are both provided with one-way air inlet valves. When the air pressure in the tank is lower than the outside air pressure, the outside air enters the tank through the one-way air inlet valves.

3. The gas-liquid coupled multi-mode switching pumped storage irrigation device according to claim 1, characterized in that: An air pressure sensor is provided inside the second water storage tank (4) and is connected to an automatic air pressure compensation system; when the air pressure in the second water storage tank (4) drops to a set threshold, the automatic air pressure compensation system closes the first electromagnetic valve (5), starts the deep water pump (2) to inject water into the first water storage tank (3), and opens the third electromagnetic valve (7) to pressurize the water or air in the first water storage tank (3) into the second water storage tank (4) to maintain air pressure stability.

4. The gas-liquid coupled multi-mode switching pumped storage irrigation device according to claim 1, characterized in that: The multi-way reversing valve (10) comprises a reversing valve water inlet (101), a reversing valve body (102), a drip irrigation switch valve (103), a return water switch valve (104), and an atomizing switch valve (105); the reversing valve water inlet (101) is connected to the water outlet of the power generation component (9); the cavity in the reversing valve body (102) is communicated with the drip irrigation switch valve (103), the return water switch valve (104), and the atomizing switch valve (105) through joints; the drip irrigation switch valve (103), the return water switch valve (104), and the atomizing switch valve (105) are all electromagnetically controlled, and the water outlet flow rate and speed can be adjusted.

5. The gas-liquid coupled multi-mode switching pumped storage irrigation device according to claim 1, characterized in that: The gas-liquid mixing valve (11) comprises a gas-liquid mixing valve housing (111), a mixing valve core (112) and a regulating valve core (113); the mixing valve core (112) is installed in the gas-liquid mixing valve housing (111), and the regulating valve core (113) is installed on the upper end of the mixing valve core (112); the lower end of the gas-liquid mixing valve housing (111) is connected to the atomizing water pipe (16), the left side of the pipe is connected to the fourth solenoid valve (8), and the right side is connected to the pipe of the atomizing nozzle (13).

6. The gas-liquid coupled multi-mode switching pumped storage irrigation device according to claim 5, characterized in that: The mixing valve core (112) is sealedly connected to the lower end of the gas-liquid mixing valve housing (111), and a "∩"-shaped cavity is formed between its upper end and the inner wall of the gas-liquid mixing valve housing (111); the regulating valve core (113) can move up and down to adjust the size of the top cavity (111b), thereby controlling the airflow rate.

7. The gas-liquid coupled multi-mode switching pumped storage irrigation device according to claim 6, characterized in that: A main channel (1121) is provided inside the mixing valve core (112), the bottom of which is connected to the atomizing water pipe (16), and the top outlet is communicated with the top cavity (111b); separators (1122) are provided on both sides of the main channel (1121) in a uniform vertical direction and symmetrically arranged along the central vertical axis, and the separators (1122) divide the main channel (1121) into the same number of reverse reflux channels.

8. The gas-liquid coupled multi-mode switching pumped storage irrigation device according to claim 7, characterized in that: The separator (1122) comprises a cylinder (200) and a symmetrical separator (201) connected to the cylinder with a pointed angle; a first channel (1123a) is provided at the center of the cylinder (200), and the cylinder (200) is provided with a through hole, so that the first channel (1123a) is communicated with the space inside the separator (201); all cylinders (200) in a vertical row are communicated with the first cavity (1125a) through the first channel (1123a), and the first cavity (1125a) is communicated with the high-pressure gas source through the gas source channel (1124).

9. The gas-liquid coupled multi-mode switching pumped storage irrigation device according to claim 7, characterized in that: The inner side of the separator (201) of the separator (1122) is provided with symmetrical and staggered blocking protrusions (202), which are used to allow airflow to impact the blocking protrusions (202) to form a self-excited oscillation structure, thereby breaking up the water fluid in the main channel (1121) or promoting the fusion of water-soluble pesticides and the water fluid.

10. The method for using the gas-liquid coupled multi-mode switching pumped storage irrigation device according to claim 1 is characterized in that The following steps are involved: Step 1: The power generation component (1) converts natural energy into electrical energy to drive the deep water pump (2) to pump water at a low position into the first water storage tank (3); Step 2: When the water level in the first water storage tank (3) rises to a certain level, the compressed air enters the second water storage tank (4) through the third solenoid valve (7), and then the water medium flows into the second water storage tank (4) and further compresses the air inside the second water storage tank (4); Step 3: When power generation is required, the first solenoid valve (5) and the second solenoid valve (6) are opened, and the water in the water storage tank flows to the power generation component (9) under the action of compressed air pressure to generate power; Step 4: The multi-way reversing valve (10) is switched according to the demand: if irrigation is not required, the return pipe (15) is connected to allow the water to flow back to the deep well or low-level water storage tank; if drip irrigation is required, the drip irrigation assembly (14) is connected; If atomized irrigation is required, the gas-liquid mixing valve (11) is connected and the fourth solenoid valve (8) is opened at the same time, so that the compressed air and water in the second water storage tank (4) are mixed and atomized in the gas-liquid mixing valve (11) and then sprayed out through the atomizing nozzle (13).

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