Gas-liquid fertilizer mixing system and mixing method

Abstract

The gas-liquid fertilizer mixing system and mixing method belong to the technical field of agricultural equipment, and are composed of a water storage device, a liquid fertilizer generating device, a gas-fertilizer separation device, an electrolysis device and a gas-liquid mixing device. The corresponding salt solution and acid are put into the liquid fertilizer bin to generate ions and carbon dioxide. The water tank is communicated with the liquid fertilizer bin through a medicine mixing pipeline and a medicine outlet pipeline. The water tank is opened and closed according to ion concentration detection, and the liquid fertilizer is mixed to increase the solvent content and adjust the ion concentration. The electrolysis device generates hydrogen and ions. The ions are dissolved in the fertilizer bin solution, and hydrogen and carbon dioxide float into the gas fertilizer bin. The carbon dioxide acts on the plant leaves through a separate pipeline, and the hydrogen and oxygen gas are mixed with the liquid fertilizer in the medicine mixing pipeline through another pipeline to form gas-liquid fertilizer drip irrigation for the plant roots. The application can meet the needs of plants for different elements or ions and realize precise fertilization.

Description

Technical Field

[0001] This invention belongs to the field of agricultural equipment technology, and relates to a fertilization system and fertilization method, specifically to a gas-liquid fertilizer mixing system and mixing method. Background Technology

[0002] Facility agriculture is an intensive agricultural production method characterized by environmental control, high input, and high output. my country ranks first in the world in terms of facility vegetable cultivation area, vegetable output, and exports, and has gradually become a global leader in facility vegetable production and an indispensable part of modern urban life. In facility vegetable greenhouses, the on-demand supply of fertilizer is essential for healthy crop growth. Among different fertilization methods, underground drip irrigation technology is commonly used for facility vegetables due to its advantages of water conservation, fertilizer saving, precision, and high efficiency. However, conventional underground drip irrigation displaces air from soil pores, often causing hypoxia stress in crop roots, inhibiting crop growth, and negatively impacting crop quality and yield. Furthermore, current underground drip irrigation mainly targets soluble fertilizers such as nitrogen, phosphorus, and potassium, while gaseous fertilizers cannot be applied simultaneously. However, research shows that gaseous fertilizers also play a crucial role in vegetable growth. For example, appropriately increasing carbon dioxide levels can promote photosynthesis in vegetables and increase crop yield; appropriate application of hydrogen can promote seed germination, seedling development, and adventitious root growth; and oxygen is an essential environmental condition for root development. Therefore, the coordinated supply of gaseous and liquid fertilizers is essential for ensuring high-yield and high-quality crops. However, currently, gaseous and liquid fertilizers are usually applied separately. Liquid fertilizers are mainly applied to the crop roots, while gaseous fertilizers, primarily carbon dioxide, act on the crop leaves. This separate application method not only consumes a lot of manpower and resources, but also makes it difficult for gaseous fertilizers to reach the roots, thus affecting the fertilization effect. Summary of the Invention

[0003] The purpose of this invention is to address the problem that conventional underground drip irrigation displaces air from soil pores, often leading to hypoxia stress in crop roots, inhibiting crop growth, and hindering crop quality and yield. Furthermore, current underground drip irrigation primarily targets soluble fertilizers such as nitrogen, phosphorus, and potassium, and gaseous fertilizers cannot be applied simultaneously. Separating gaseous and liquid fertilizers not only requires significant manpower and resources but also makes it difficult for the gaseous fertilizer to reach the roots, resulting in inaccurate delivery and impacting fertilization effectiveness. This invention proposes a gas-liquid fertilizer mixed application system and method that allows liquid and gaseous fertilizers to be precisely applied to the parts of the plant requiring them, reducing gas loss and waste, and further improving fertilization efficiency.

[0004] The gas-liquid fertilizer mixing system and mixing method provided in this application adopt the following technical solution:

[0005] A gas-liquid fertilizer co-application system, including a frame; characterized in that the gas-liquid fertilizer co-application system further includes:

[0006] The water storage device consists of a water tank and a mixing pipeline, with the mixing pipeline connected to the water tank.

[0007] The liquid fertilizer generating device consists of a liquid fertilizer tank, an air inlet pipe, and a pesticide outlet pipe. The air inlet pipe is connected to the top of the liquid fertilizer tank, and the pesticide outlet pipe is connected to the bottom of the liquid fertilizer tank.

[0008] The gas-fertilizer separation device consists of a gas-fertilizer chamber, a first gas outlet pipe, and a second gas outlet pipe. The gas-fertilizer chamber is connected to the liquid fertilizer chamber through an inlet pipe, and the gas fertilizer is output through the first gas outlet pipe.

[0009] The electrolysis device consists of a power controller, a positive electrode unit, and a negative electrode unit. The positive electrode unit is raised and lowered at the top of the liquid fertilizer tank, and the negative electrode unit is fixed at the bottom of the liquid fertilizer tank.

[0010] A gas-liquid mixing device includes an aerator. The mixing pipe and the second air outlet pipe are connected in parallel to the aerator. After aeration and mixing, the gas-liquid fertilizer is drip-irrigated.

[0011] By adopting the above technical solution, appropriate salt solutions and acids are placed in the liquid fertilizer tank to generate ions and carbon dioxide. A water tank is connected to the liquid fertilizer tank via a mixing pipe and a dispensing pipe. Based on ion concentration detection, the opening and closing of the water tank is controlled to mix with the liquid fertilizer, thereby increasing the solvent content and adjusting the ion concentration. An electrolysis device generates hydrogen and ions. The ions dissolve into the fertilizer solution in the tank, while hydrogen and carbon dioxide rise into the gaseous fertilizer tank. Carbon dioxide is applied through a separate pipeline, while hydrogen, oxygen, and other gases are mixed with the liquid fertilizer in the mixing pipe through another pipeline to form a gaseous-liquid fertilizer for drip irrigation.

[0012] Furthermore, the number of liquid fertilizer tanks is no less than three, and there is at least one nitrogen fertilizer tank, one potassium fertilizer tank, and one phosphate fertilizer tank in the liquid fertilizer tank. Each liquid fertilizer tank is equipped with an ion concentration detector.

[0013] By adopting the above technical solution, nitrogen, potassium, and phosphorus are selectively supplied from nitrogen, potassium, and phosphorus fertilizer tanks according to the elements required by plants. The corresponding liquid fertilizer tank can be activated simply by activating it; the operation is convenient and there is no interference between them. By installing ion concentration detectors inside the liquid fertilizer tanks to monitor ion concentration in real time, it facilitates coordinated operation with water tanks, control valves, and other components, thus ensuring precise supply of liquid fertilizer concentration.

[0014] Furthermore, each of the positive electrode units is composed of four types of electrode heads: graphite, zinc, copper, and magnesium, while each of the negative electrode units is composed of graphite electrodes.

[0015] By adopting the above technical solution, both the positive and negative electrode units extend into the fertilizer chamber and are in contact with the solution. The positive electrode unit can select the electrode head according to the plant's ion requirements. For example, when the plant only needs hydrogen, a graphite electrode head is used, and electrolysis can generate hydrogen for the plant's use. When the plant lacks trace amounts of zinc ions, a zinc electrode head is used, which generates zinc ions and hydrogen when electricity is applied. The hydrogen enters the upper gas fertilizer chamber, while the zinc ions dissolve into the fertilizer solution for the plant's use. This facilitates the precise supply of trace elements or ions.

[0016] Furthermore, the positive electrode unit is raised and lowered in the solution of the liquid fertilizer tank by a lifting device. The lifting device consists of a suspension, a lifting rod, a gear, a rack and a servo motor. The top of the lifting rod is movably connected to the suspension. Each electrode head is placed at the bottom of the lifting rod. The rack is set in the middle of the lifting rod. The servo motor drives the gear to rotate, and the gear drives the rack to move up and down, thereby moving the electrode head up and down.

[0017] By adopting the above technical solution, a lifting device is used to drive the electrode head to contact the solution in the liquid fertilizer tank. Each electrode head is driven and controlled by a servo motor. Therefore, under the forward and reverse drive of the servo motor, the corresponding electrode head can be driven to lift and lower independently, and the required ionic liquid fertilizer can be accurately obtained.

[0018] Furthermore, the lifting rod is a cylindrical rod, and the lifting rod forms a sealed piston movement relative to the top surface of the liquid fertilizer tank, with a piston ring provided between the two.

[0019] By adopting the above technical solution, the gas generated in the liquid fertilizer tank is ensured to flow to the gas fertilizer tank through the sealed connection between the lifting rod and the liquid fertilizer tank, thus preventing gas leakage and facilitating the directional and stable delivery of gas fertilizer.

[0020] Furthermore, the negative electrode unit is fixed to the bottom of the liquid fertilizer tank by a support device, which consists of a base and a boss. The negative electrode unit is fitted onto the boss to form a limiting and fixed position.

[0021] By adopting the above technical solution, it is beneficial to fix the circular graphite negative electrode to the bottom of the liquid fertilizer tank in position, making installation, disassembly and replacement more convenient, and allowing the solution inside the liquid fertilizer tank to form a full electrolytic reaction.

[0022] Furthermore, the gas-fertilizer chamber is equipped with a molecular sieve membrane, which is a three-layer overlapping polymer mesh plate. The molecular sieve membrane divides the gas-fertilizer chamber into a photosynthesis chamber and a respiration chamber to facilitate the separate collection and directional transport of carbon dioxide and other gases. Both the photosynthesis chamber and the respiration chamber are equipped with gas concentration sensors.

[0023] By adopting the above technical solution, the molecular sieve membrane is placed in the center of the gas fertilizer chamber. Due to the different molecular diameters of hydrogen, oxygen, and carbon dioxide, smaller hydrogen and oxygen molecules can pass through, while larger carbon dioxide molecules are precisely screened out and retained in the photosynthesis chamber, forming an efficient directional transport of CO2, H2, and O2.

[0024] Furthermore, the gas fertilizer chamber is equipped with a slide rail, and the molecular sieve membrane grid plate has slide grooves on both sides, so that the two sides of the molecular sieve membrane are slidably connected to the inner wall of the gas fertilizer chamber.

[0025] By adopting the above technical solution, during installation, the sliding grooves on both sides of the molecular sieve membrane outer frame can be directly slid into the slide rail inside the chamber to complete the installation. Similarly, during disassembly, the molecular sieve membrane outer frame can be directly pulled out along the slide rail inside the chamber, making replacement quick and easy.

[0026] A method for applying gas-liquid fertilizer, characterized by the following steps:

[0027] When plants require nutrients, a certain amount of solution is added to the liquid fertilizer tank, and elements such as nitrogen, phosphorus, and potassium are introduced into the mixing pipeline. When the concentration of liquid fertilizer in the liquid fertilizer tank is too high, the dispensing pipeline is opened under the action of the control valve, and the water tank is also opened at the same time. Water enters the mixing pipeline and mixes with the liquid fertilizer to increase the solvent content and reduce the ion concentration. At the same time, the reaction can also generate carbon dioxide needed by plants, which enters the gas fertilizer tank.

[0028] When plants require micronutrients, the solution in the liquid fertilizer chamber produces hydrogen gas and zinc, copper, and magnesium ions through electrolysis at different positive electrodes. The hydrogen gas enters the gas fertilizer chamber, and the ions enter the mixing pipeline along with the solution. By monitoring the electrolysis reaction, the ion concentration can be monitored.

[0029] After gases such as carbon dioxide, hydrogen, and oxygen enter the gas fertilizer chamber, the molecular sieve membrane separates the carbon dioxide from the other gases. The carbon dioxide is applied through a separate pipeline, while the hydrogen, oxygen, and other gases are mixed with the liquid fertilizer in the mixing pipeline through another pipeline to form a gas-liquid fertilizer for drip irrigation.

[0030] By adopting the above technical solutions, both gas application and gas-liquid fertilizer drip irrigation can be achieved. This can meet the needs of precise fertilization of plant leaves and precise drip irrigation of plant roots. Precise fertilization can be carried out according to the needs of different parts of the plant, reducing gas loss and waste, improving plant absorption efficiency, and increasing fertilization efficiency.

[0031] In summary, the present invention has at least one of the following beneficial technical effects:

[0032] 1. This invention can select different liquid fertilizer tanks and electrode heads according to the plant's needs for different elements or ions, so that the trace elements and ions in gaseous fertilizer and liquid fertilizer meet the plant's needs and achieve precision fertilization.

[0033] 2. This invention allows for the selection of either gaseous fertilizer application or gas-liquid fertilizer drip irrigation, or both, based on the needs of the plant's fertilization location. This significantly improves fertilization efficiency and further promotes the plant's absorption of fertilizer.

[0034] 3. This invention, by installing concentration detection sensors in the liquid fertilizer and gas fertilizer chambers for real-time detection and controlling the opening and closing of flow control valves, can not only adjust the ion concentration of the liquid and gas fertilizers to ensure safety when applied to plant parts, but also precisely control the amount of sprayed gas and drip irrigation liquid, thereby improving resource utilization.

[0035] 4. The gas-fertilizer chamber structure in this invention can precisely filter hydrogen and oxygen molecules, enabling CO2, H2, and O2 to be directionally delivered to the parts of the plant that require them. CO2 and H2 act on the plant roots, while O2 acts on the plant leaves, forming a highly efficient and precise supply of gas-liquid fertilizer, reducing gas loss and waste, and improving fertilization efficiency.

[0036] 5. The present invention has a compact system structure, a scientific method, strong operability, low manufacturing cost, and is easy to use and popularize in the field. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0038] Figure 2 This is a schematic diagram of the electrolysis device in this invention.

[0039] Figure 3 This is a schematic diagram of the liquid fertilizer storage structure in this invention.

[0040] Figure 4 This is a schematic diagram of the lifting device structure on the top of the liquid fertilizer tank in this invention.

[0041] Figure 5 This is a schematic diagram of the internal support device for the liquid fertilizer tank in this invention.

[0042] Figure 6 This is a schematic diagram of the overall structure of the gas fertilizer storage chamber in this invention.

[0043] Figure 7 This is a schematic diagram of the internal structure of the gas fertilizer chamber in this invention.

[0044] Figure 8 This is a schematic diagram of the molecular sieve membrane and its external frame structure in this invention.

[0045] Figure 9 This is a schematic diagram illustrating the working principle of the entire system of the present invention.

[0046] In the diagram: 1. Water tank; 2. Mixing pipe; 3. Liquid fertilizer tank; 4. Air inlet pipe; 5. Air outlet pipe; 6. Gas fertilizer tank; 7-1. First air outlet pipe; 7-2. Second air outlet pipe; 8. Power controller; 9. Positive electrode unit; 10. Negative electrode unit; 11. Aerator; 12. Ion concentration detector; 13. Flow control valve; 14. Lifting device; 15. Support device; 15. Base; 15-1. Boss; 15-2. Molecular sieve membrane; 16. Photosynthesis chamber; 17. Respiration chamber; 18. Gas concentration sensor; 19. Flow meter; 20. Control valve; 21. Slide rail; 22. Slide groove; 23. Detailed Implementation

[0047] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and not for limiting the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0048] like Figure 1 , Figure 3 As shown, a gas-liquid fertilizer mixing system includes a water storage device comprising a water tank 1, a mixing pipeline 2, and dispensing pipelines 5 connected to three liquid fertilizer tanks 3, as well as an ion concentration detector 12. The water tank 1 and the three dispensing pipelines 5 are all connected to the mixing pipeline 2. When the liquid fertilizer concentration in the three liquid fertilizer tanks 3 is too high, the dispensing pipelines 5 open under the action of the ion concentration detector 12 and the control valve 13. Simultaneously, the water tank 1 also opens, allowing water to enter the mixing pipeline 2 and mix with the liquid fertilizer to increase the solvent content and reduce the ion concentration.

[0049] like Figure 2 , Figure 3 As shown, the electrolysis device 2 includes a power controller 8, a positive electrode unit 9, and a negative electrode unit 10. Both the positive electrode unit 9 and the negative electrode unit 10 extend into the fertilizer chamber and are in contact with the fertilizer solution. The negative electrode units 10 are identical, all being graphite electrodes. The positive electrode unit 9 is equipped with four types of electrode heads: graphite, zinc, copper, and magnesium, depending on the plant's elemental requirements. For example, when the plant only needs hydrogen, a graphite electrode head is used, and electrolysis can generate hydrogen for the plant's use. If the plant lacks the trace element zinc, a zinc electrode head is used; when electricity is applied, zinc ions and hydrogen are generated. The hydrogen enters the upper gas fertilizer chamber, and the zinc ions dissolve into the fertilizer solution for the plant's use. All three liquid fertilizer chambers 3 contain positive and negative electrodes; each has four positive electrodes, and each has a graphite electrode as the negative electrode. The electrolysis process is uniformly controlled by the power controller 8.

[0050] like Figure 4As shown, in order to make each electrode head in the positive electrode unit contact the solution in the liquid fertilizer tank and obtain a more accurate ionic liquid fertilizer, in this embodiment, the positive electrode unit 9 is raised and lowered in the solution in the liquid fertilizer tank 3 by a lifting device 14. The lifting device 14 consists of a suspension 14-1, a lifting rod 14-2, a gear 14-3, a rack 14-4 and a servo motor. The top of the lifting rod 14-2 is movably connected to the suspension 14-1. Each type of electrode head is placed at the bottom of the lifting rod 14-2. The rack 14-4 is set in the middle of the lifting rod 14-2. The servo motor drives the gear 14-3 to rotate, and the gear 14-3 drives the rack 14-4 to move up and down, thereby moving the electrode head up and down.

[0051] Specifically, when the plant needs hydrogen, the lifting device 14 controls the graphite electrode to descend and enter the liquid fertilizer tank 3, forming a circuit with the graphite electrode 10. At this time, when electricity is applied, hydrogen can be generated by electrolyzing the liquid in the liquid fertilizer tank.

[0052] Specifically, when the plant needs zinc ions, the lifting device 14 controls the zinc electrode to descend and enter the liquid fertilizer tank 3, forming a circuit with the graphite electrode 10. At this time, when electricity is applied, the liquid in the liquid fertilizer tank is electrolyzed, which can generate zinc ions and hydrogen gas.

[0053] Specifically, when plants need copper ions, the lifting device 14 controls the copper electrode to descend and enter the liquid fertilizer tank 3, forming a circuit with the graphite electrode 10. At this time, when electricity is applied, the liquid in the liquid fertilizer tank is electrolyzed, which can generate copper ions and hydrogen gas.

[0054] Specifically, when the plant needs magnesium ions, the lifting device 14 controls the magnesium electrode to descend and enter the liquid fertilizer tank 3, forming a circuit with the graphite electrode 10. At this time, when electricity is applied, the liquid in the liquid fertilizer tank is electrolyzed, which can generate magnesium ions and hydrogen gas.

[0055] The electrolysis reaction rate is controlled by adjusting the current of the power controller 8. When the ion concentration detector 12 in the liquid fertilizer tank 3 detects that the ion concentration has reached the plant's needs, it will send a signal to the power controller 8. The power controller 8 will stop electrolysis, and the control valve 13 connected to the bottom of the liquid fertilizer tank 3 will open. The liquid in the liquid fertilizer tank 3 will be transported to the part of the plant that needs it along the medicine outlet pipe 5 to supplement the plant with the required ions and elements.

[0056] like Figure 3 As shown, in order to ensure that the gas generated in the liquid fertilizer tank flows to the gas fertilizer tank and prevent gas leakage, which is conducive to the directional and stable delivery of gas fertilizer, a sealed sliding connection is formed between the lifting rod and the liquid fertilizer tank in this embodiment. Specifically, the lifting rod 14-2 is a cylindrical rod, and the lifting rod 14-2 and the top surface of the liquid fertilizer tank 3 form a sealed piston sliding fit, with a piston ring provided between the two mating surfaces.

[0057] like Figure 1 , Figure 9As shown, in order to obtain the three elements required by plants—nitrogen, potassium, and phosphorus—three liquid fertilizer tanks are set up in this embodiment, namely nitrogen fertilizer tank, potassium fertilizer tank, and phosphorus fertilizer tank.

[0058] Specifically, a mixed solution of ammonium bicarbonate and dilute hydrochloric acid is prepared in the nitrogen fertilizer bin. The reaction is NH4HCO3 + HCl = NH4Cl + H2O + CO2↑. The salt produced is ammonium chloride, which can supplement the nitrogen element of plants. The gas produced is carbon dioxide, which enters the gas fertilizer bin through the pipe above.

[0059] Specifically, a mixed solution of potassium bicarbonate and dilute hydrochloric acid is prepared in the potassium fertilizer tank. The reaction is KHCO3 + HCl = KCl + H2O + CO2↑, which produces potassium chloride, which can supplement the potassium element of plants. The generated gas is carbon dioxide, which enters the gas fertilizer tank through the pipe above.

[0060] Specifically, a sodium carbonate + phosphoric acid mixed solution is prepared in the phosphate fertilizer silo, and the reaction is 3NaHCO3 + H3PO3 = Na3PO4 + 3H2O + 3CO2↑. The salt produced is sodium phosphate, which can supplement the plants with phosphorus and sodium elements. The gas produced is carbon dioxide, which enters the gas fertilizer silo through the pipe above.

[0061] When the plant lacks the corresponding elements, the corresponding liquid fertilizer tank 3 will activate, and the control valve 13 in the medicine outlet pipe 5 at the bottom of the corresponding liquid fertilizer tank 3 will open, allowing the fertilizer solution to enter the mixing pipe 2 for fertilization.

[0062] like Figure 6 As shown, to enable the gas-fertilizer separation device to perform gas sieving and to achieve directional gas delivery, a molecular sieve membrane 16 is installed inside the gas-fertilizer chamber 6 in this embodiment. Specifically, the molecular sieve membrane 16 is a three-layer overlapping polymer mesh plate, with each polymer layer having a thickness of 0.3-0.5 nm. The molecular sieve membrane 16 divides the gas-fertilizer chamber 6 into a photosynthesis chamber 17 and a respiration chamber 18. The photosynthesis chamber 17 outputs gas through the first gas outlet pipe 7-1, and the respiration chamber 18 outputs gas through the second gas outlet pipe 7-2. When CO2, H2, and O2 generated in the liquid fertilizer chamber 3 enter the gas-fertilizer chamber 6, the smaller and lighter H2 and O2 molecules pass through the molecular sieve membrane 16 into the upper respiration chamber 18, while the larger and heavier CO2 molecules are retained in the photosynthesis chamber 17 for gas sieving. This results in efficient directional delivery of CO2, H2, and O2, ultimately acting on different parts of the plant, reducing gas loss and waste, and improving fertilization efficiency.

[0063] like Figure 7 , Figure 8As shown, to enable quick installation of the molecular sieve membrane 16 and the gas fertilizer chamber 6, this embodiment employs a plug-in connection structure. Specifically, a slide rail 22 is provided inside the gas fertilizer chamber 6, and sliding grooves 23 are provided on both sides of the molecular sieve membrane 16, forming a sliding connection between the two sides of the molecular sieve membrane 16 and the inner wall of the gas fertilizer chamber 6. Installation is completed by directly sliding the sliding grooves on both sides of the molecular sieve membrane outer frame into the slide rail inside the chamber. Similarly, during disassembly, the molecular sieve membrane outer frame is directly pulled out along the slide rail inside the chamber, making replacement quick and easy.

[0064] like Figure 9 As shown, the specific method of applying the gas-liquid fertilizer mixture using the system is as follows:

[0065] When plants require nutrients, a certain amount of solution is added to the liquid fertilizer tank, and elements such as nitrogen, phosphorus, and potassium are introduced into the mixing pipeline. When the concentration of liquid fertilizer in the liquid fertilizer tank is too high, the dispensing pipeline is opened under the action of the control valve, and the water tank is also opened at the same time. Water enters the mixing pipeline and mixes with the liquid fertilizer to increase the solvent content and reduce the ion concentration. At the same time, the reaction can also generate carbon dioxide needed by plants, which enters the gas fertilizer tank.

[0066] When plants require micronutrients, the solution in the liquid fertilizer chamber generates hydrogen gas and zinc, copper, and magnesium ions through electrolysis at different electrodes. The hydrogen gas enters the gas fertilizer chamber, and the ions enter the mixing pipeline along with the solution. By monitoring the electrolysis reaction, the ion concentration can be monitored.

[0067] After gases such as carbon dioxide, hydrogen, and oxygen enter the gas fertilizer chamber, the molecular sieve membrane separates the carbon dioxide from the other gases. The carbon dioxide is applied through a separate pipeline, while the hydrogen, oxygen, and other gases are mixed with the liquid fertilizer in the mixing pipeline through another pipeline to form a gas-liquid fertilizer for drip irrigation.

Claims

1. A gas-liquid fertilizer co-application system, including a frame; characterized in that, The gas-liquid fertilizer application system also includes: The water storage device consists of a water tank (1) and a mixing pipe (2), which is connected to the water tank (1). The liquid fertilizer generating device consists of a liquid fertilizer tank (3), an air inlet pipe (4), and a drug outlet pipe (5). The air inlet pipe (4) is connected to the top of the liquid fertilizer tank (3), and the drug outlet pipe (5) is connected to the bottom of the liquid fertilizer tank (3). The gas-fertilizer separation device consists of a gas-fertilizer chamber (6), a first gas outlet pipe (7-1), and a second gas outlet pipe (7-2). The gas-fertilizer chamber (6) is connected to the liquid fertilizer chamber (3) through the inlet pipe (4), and the gas fertilizer is output through the first gas outlet pipe (7-1). The electrolysis device consists of a power controller (8), a positive electrode unit (9), and a negative electrode unit (10). The positive electrode unit (9) is raised and lowered at the top of the liquid fertilizer tank (3), and the negative electrode unit (10) is fixed at the bottom of the liquid fertilizer tank (3). The positive electrode unit (9) is composed of four types of electrode heads: graphite, zinc, copper, and magnesium. The negative electrode unit (10) is composed of graphite electrodes. The positive electrode unit (9) is raised and lowered in the solution of the liquid fertilizer tank (3) by a lifting device (14). The device consists of a suspension (14-1), a lifting rod (14-2), a gear (14-3), a rack (14-4), and a servo motor. The top of the lifting rod (14-2) is movably connected to the suspension (14-1). Each type of electrode head is placed at the bottom of the lifting rod (14-2). The rack (14-4) is located in the middle of the lifting rod (14-2). The servo motor drives the gear (14-3) to rotate, and the gear (14-3) drives the rack (14-4) to move up and down, thereby moving the electrode head up and down. The gas-liquid mixing device includes an aerator (11), and the mixing pipe (2) and the second air outlet pipe (7-2) are connected in parallel to the aerator (11). After aeration and mixing, the gas-liquid fertilizer is drip-irrigated.

2. The gas-liquid fertilizer co-application system according to claim 1, characterized in that: The number of liquid fertilizer tanks (3) shall not be less than 3. Each liquid fertilizer tank (3) shall have at least one nitrogen fertilizer tank, one potassium fertilizer tank and one phosphate fertilizer tank. Each liquid fertilizer tank (3) shall be equipped with an ion concentration detector (12).

3. The gas-liquid fertilizer co-application system according to claim 1, characterized in that: The lifting rod (14-2) is a cylindrical rod. The lifting rod (14-2) forms a sealed piston movement relative to the top surface of the liquid fertilizer tank (3), and a piston ring is provided between the two.

4. The gas-liquid fertilizer co-application system according to claim 1, characterized in that: The negative electrode unit (10) is fixed to the bottom of the liquid fertilizer tank (3) by a support device (15). The support device (15) consists of a base (15-1) and a boss (15-2). The negative electrode unit (10) is fitted onto the boss (15-2) to form a limiting and fixed position.

5. The gas-liquid fertilizer co-application system according to claim 1, characterized in that: The gas fertilizer chamber (6) is equipped with a molecular sieve membrane (16), which is a three-layer overlapping polymer mesh plate. The molecular sieve membrane (16) divides the gas fertilizer chamber (6) into a photosynthesis chamber (17) and a respiration chamber (18) to facilitate the separate collection and directional transport of carbon dioxide and other gases. Both the photosynthesis chamber (17) and the respiration chamber (18) are equipped with gas concentration sensors (19).

6. The gas-liquid fertilizer co-application system according to claim 5, characterized in that: The gas fertilizer chamber (6) is equipped with a slide rail (22) inside, and the molecular sieve membrane (16) grid plate is provided with slide grooves (23) on both sides. The slide grooves (23) on both sides of the molecular sieve membrane (16) and the slide rail (22) on the inner wall of the gas fertilizer chamber (6) are slidably connected and installed.

7. A method for applying gas-liquid fertilizer mixture, characterized in that, The method of using the gas-liquid fertilizer co-application system according to any one of claims 1-6 is as follows: When plants require nutrients, a certain amount of solution is added to the liquid fertilizer tank, and nitrogen, phosphorus, and potassium are introduced into the mixing pipeline. When the concentration of liquid fertilizer in the liquid fertilizer tank is too high, the dispensing pipeline is opened under the action of the control valve, and the water tank is also opened at the same time. Water enters the mixing pipeline and mixes with the liquid fertilizer to increase the solvent content and reduce the ion concentration. At the same time, the reaction also generates carbon dioxide needed by the plants, which enters the gas fertilizer tank. When plants require micronutrients, the solution in the liquid fertilizer chamber generates hydrogen gas and zinc, copper, and magnesium ions through electrolysis at different electrodes. The hydrogen gas enters the gas fertilizer chamber, and the ions enter the mixing pipeline along with the solution. By monitoring the electrolysis reaction, the ion concentration can be monitored. After carbon dioxide, hydrogen, and oxygen enter the gas fertilizer chamber, the molecular sieve membrane separates the carbon dioxide from the other gases. The carbon dioxide is applied through a separate pipeline, while the hydrogen and oxygen are mixed with the liquid fertilizer in the mixing pipeline through another pipeline to form a gas-liquid fertilizer for drip irrigation.

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