Self-powered intelligent water power fertilizer applicator

Abstract

The application belongs to the technical field of farmland irrigation equipment, and provides a self-power generation type intelligent water power fertilizer applicator, which comprises a main pipeline, a main electromagnetic valve is communicated with the main pipeline, one end of the main pipeline is connected with an irrigation pipeline, and the other end is internally provided with a flowmeter; a plurality of fertilizer pumping assemblies, each of the fertilizer pumping assemblies comprises a branch pipeline, two ends of each of the branch pipelines are communicated with the main pipeline, a water-driven rotating piece is arranged in each of the branch pipelines, a plurality of water pumps are arranged on each of the branch pipelines, and the water-driven rotating piece drives the plurality of water pumps to rotate; a fertilizer feeding joint assembly, the fertilizer feeding joint assembly comprises a water inlet pipe communicated with the main pipeline, a concentration meter is arranged in the water inlet pipe, a branch pipeline mechanism is communicated with the water inlet pipe, and the plurality of water pumps are communicated with the branch pipeline mechanism; and a power generation assembly, the power generation assembly comprises a water-driven power generation mechanism, and the water-driven power generation mechanism is used for providing power. The application can accurately control the concentration of the fertilizer, realizes automatic and information-based control, and can support the simultaneous delivery of different fertilizers.

Description

Technical Field

[0001] This invention belongs to the technical field of farmland irrigation equipment, and particularly relates to a self-generating intelligent hydrodynamic fertilizer applicator. Background Technology

[0002] Integrated water and fertilizer technology refers to a new agricultural technology that integrates irrigation and fertilization. It utilizes a pressure system (or natural terrain gradient) to mix soluble solid or liquid fertilizers, tailored to soil nutrient content and crop requirements, with irrigation water via a pipeline system. After the water and fertilizer are combined, drip irrigation is achieved through pipes and emitters, evenly, regularly, and quantitatively irrigating the crop's root zone, ensuring the soil around the main root system remains loose and at an appropriate moisture content.

[0003] Hydrodynamic fertilizer applicators are an essential device in integrated water and fertilizer application. By reducing the opening angle of the valve on the main pipeline, the water flow into the branch pipes is increased. This increased water flow generates the force to absorb fertilizer, drawing the fertilizer through a suction pipe into the main pipeline to mix with the irrigation water, thus achieving water and fertilizer supply. However, existing hydrodynamic fertilizer applicators have manually adjustable valves, making it impossible to precisely control the water flow into the branch pipes. This results in insufficient control over fertilizer absorption capacity and an inability to accurately regulate fertilizer concentration in the irrigation water, hindering automated and information-based control. Furthermore, existing hydrodynamic fertilizer applicators can only absorb a single type of fertilizer into the irrigation water at a time, and cannot simultaneously deliver different types of fertilizers into the irrigation pipes. Summary of the Invention

[0004] The purpose of this invention is to provide a self-generating intelligent hydrodynamic fertilizer applicator to solve the above problems, achieve precise control of fertilizer concentration, realize automated and information-based control, and support the simultaneous delivery of different fertilizers.

[0005] To achieve the above objectives, the present invention provides the following solution: a self-generating intelligent hydrodynamic fertilizer applicator, comprising:

[0006] The main pipeline is connected to a main solenoid valve. One end of the main pipeline is connected to a farmland irrigation pipeline, and the other end of the main pipeline is equipped with a flow meter.

[0007] A plurality of fertilizer pumping assemblies, each comprising a branch pipe, the two ends of which are respectively connected to the main pipeline, and a main solenoid valve located between the inlet and outlet ends of the branch pipes. A water-driven rotating component is provided inside the branch pipe, and a plurality of water pumps are provided on the branch pipe. The water-driven rotating component is used to drive the plurality of water pumps to rotate, and the plurality of water pumps are used to pump water-fertilizer.

[0008] A fertilizer inlet connector assembly includes an inlet pipe connected to one end of the main pipeline near the farmland irrigation pipe, a concentration meter is installed inside the inlet pipe, and a branch pipe mechanism is connected to the inlet pipe. Several water pumps pump water and fertilizer into the main pipeline through the branch pipe mechanism.

[0009] The power generation component includes a front-end pipeline connected to the end of the main pipeline away from the farmland irrigation pipeline, and a water-driven power generation mechanism is installed in the front-end pipeline. The water-driven power generation mechanism is used to supply power to the main solenoid valve, the branch pipe mechanism, the flow meter, and the concentration meter.

[0010] Preferably, a pre-stage collar and a post-stage collar are connected on the main pipeline. The pre-stage collar and the post-stage collar are respectively located at both ends of the main solenoid valve. A plurality of pre-stage connecting pipes are connected to the pre-stage collar, and a plurality of post-stage connecting pipes are connected to the post-stage collar. A pre-stage connector and a post-stage connector are respectively connected to both ends of the side wall of the branch pipe. The pre-stage connector and the post-stage connector on one branch pipe are respectively connected to a pre-stage connecting pipe and a post-stage connecting pipe.

[0011] Preferably, the front-stage connector and the rear-stage connector are respectively connected to a front-stage solenoid valve and a rear-stage solenoid valve.

[0012] Preferably, the water-driven rotating component includes a drive shaft rotatably connected inside the branch pipe, a plurality of impellers are fixedly connected to the drive shaft along the axial direction of the drive shaft, the plurality of impellers are located in the middle of the branch pipe, and the drive shaft is drively connected to the input shaft of the water pump.

[0013] Preferably, the branch pipe mechanism includes a connecting box connected to the end of the inlet pipe away from the main pipeline, a plurality of inlet branch pipes are connected to the connecting box, a fertilizer solenoid valve is connected to each of the plurality of inlet branch pipes, the outlet of a water pump is connected to one of the inlet branch pipes through a pipeline, an exhaust section is provided on the inlet branch pipe, and the fertilizer solenoid valve is located between the exhaust section and the connecting box.

[0014] Preferably, the venting section includes a vent pipe connected to the side wall of the water inlet branch pipe. The vent pipe is located at the end of the water inlet branch pipe away from the connecting box. An opening is provided on the vent pipe. An vent valve block is slidably connected inside the vent pipe. A position adjustment component is provided between the vent valve block and the vent pipe. An venting channel is provided inside the vent valve block. When the vent valve block is located in the vent pipe, the water and fertilizer pumped by the water pump enter the connecting box through the water inlet branch pipe. When the vent valve block slides from inside the vent pipe into the water inlet branch pipe, the water and fertilizer pumped by the water pump and air flow out through the venting channel and the opening.

[0015] Preferably, the position adjusting component includes a pressing rod fixedly connected to the side of the vent valve block away from the water inlet branch pipe. One end of the pressing rod away from the vent valve block passes through the side wall of the vent pipe. A spring is sleeved on the pressing rod, and the two ends of the spring are respectively fixedly connected between the vent pipe and the vent valve block.

[0016] Preferably, the water-driven power generation mechanism includes a generator fixedly connected to the front-end pipeline, a rotating shaft fixedly connected coaxially to the transmission shaft of the generator, the axis of the rotating shaft coinciding with the axis of the front-end pipeline, and a helical blade fixedly connected to the rotating shaft.

[0017] Preferably, the inlet end of the front-end pipeline is connected to a backwashing device.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] 1. This invention can monitor the mixing ratio of water and fertilizer in real time by detecting the water flow rate and fertilizer concentration, and use the main solenoid valve to automatically regulate the proportion of water flowing into the main pipeline and branch pipes, thereby controlling the power of the water pump to control the fertilization speed entering the pipeline system, so as to achieve the purpose of uniform and precise fertilization.

[0020] 2. By connecting multiple branch pipes to the main pipeline, the irrigation water flow can drive multiple water pumps to work simultaneously, which can simultaneously draw in different fertilizers and mix them with the irrigation water, thus improving fertilization efficiency.

[0021] 3. The irrigation water flow is used to generate electricity to power the operation of various functional modules, which can ensure the automation and informatization of this fertilizer applicator. It can work in the field without external power supply, and at the same time achieve the goal of green environmental protection. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the fertilizer applicator of the present invention;

[0024] Figure 2 This is a schematic diagram of the fertilizer applicator of the present invention connected to two sets of branch pipes;

[0025] Figure 3 This is a schematic diagram of the branch pipe of the present invention;

[0026] Figure 4This is a schematic diagram of the branch pipe mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the power generation component of the present invention;

[0028] Figure 6 This is a schematic diagram of the exhaust valve block of the present invention in the exhaust pipe;

[0029] Figure 7 This is a schematic diagram showing the connection between the exhaust valve block and the water inlet branch pipe of the present invention;

[0030] The components are as follows: 1. Main pipeline; 2. Front-end pipeline; 3. Inlet pipe; 4. Generator; 5. Spiral blade; 6. Shaft; 7. Pre-stage collar; 8. Rear-stage collar; 9. Rear-stage pipe; 10. Pre-stage solenoid valve; 11. Rear-stage solenoid valve; 12. Pre-stage connector; 13. Rear-stage connector; 14. Branch pipe; 15. Impeller; 16. Drive shaft; 17. Water pump; 18. Inlet; 19. Outlet; 20. Inlet pipe; 21. Connecting box; 22. Inlet branch pipe; 23. Exhaust pipe; 24. Press rod; 25. Exhaust valve block; 26. Exhaust channel; 27. Opening; 28. Spring; 29. ​​Support rod; 30. Main solenoid valve; 31. Fertilizer solenoid valve; 32. Backwashing device; 33. Pre-stage pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figures 1-7 This invention provides a self-generating intelligent hydrodynamic fertilizer applicator, comprising:

[0034] Main pipeline 1, with a main solenoid valve 30 connected to it. One end of the main pipeline 1 is connected to the farmland irrigation pipeline, and a flow meter is installed inside the other end of the main pipeline 1.

[0035] A plurality of fertilizer pumping components are provided, each including a branch pipe 14. Both ends of the branch pipe 14 are connected to the main pipeline 1, and the main solenoid valve 30 is located between the inlet and outlet ends of the branch pipe 14. A water-driven rotating component is provided inside the branch pipe 14, and a plurality of water pumps 17 are provided on the branch pipe 14. The water-driven rotating component is used to drive the plurality of water pumps 17 to rotate, and the plurality of water pumps 17 are used to pump water fertilizer.

[0036] The fertilizer inlet connector assembly includes an inlet pipe 20 connected to one end of the main pipeline 1 near the farmland irrigation pipeline. A concentration meter is installed inside the inlet pipe 20. A branch pipe mechanism is connected to the inlet pipe 20. Several water pumps 17 pump water and fertilizer into the main pipeline 1 through the branch pipe mechanism.

[0037] The power generation component includes a front-end pipe 2 connected to the end of the main pipeline 1 away from the farmland irrigation pipeline. A water-driven power generation mechanism is installed in the front-end pipe 2. The water-driven power generation mechanism is used to supply power to the main solenoid valve 30, the branch pipe mechanism, the flow meter, and the concentration meter.

[0038] The main function of the main solenoid valve 30 is to limit the water flow through the main pipeline 1, allowing some irrigation water to flow into the branch pipe 14. The main function of the flow meter is to detect the water flow into the main pipeline 1. The main function of the water-driven rotating component is to rotate under the impact of the water flow in the branch pipe 14, providing power for the operation of the water pump 17. The main function of the water pump 17 is to draw in fertilizer and send it into the main pipeline 1 to mix with the irrigation water. The main function of the concentration meter is to measure the concentration of the drawn fertilizer. The main function of the branch pipe mechanism is to transport the fertilizer drawn in by each water pump 17 into the main pipeline 1. The main function of the water-driven generator is to generate electricity using the impact of the irrigation water flow, powering the main solenoid valve 30, the branch pipe mechanism, the flow meter, and the concentration meter. Overall, this invention can monitor the mixing ratio of water and fertilizer in real time by detecting the water flow and fertilizer concentration, and automatically adjust the ratio of water flowing into the main pipeline and branch pipe using the main solenoid valve, thereby controlling the power of the water pump to control the fertilization speed entering the pipeline system, achieving the purpose of uniform and precise fertilization. Secondly, by connecting multiple branch pipes to the main pipeline, the irrigation water flow can simultaneously drive multiple water pumps, achieving the goal of simultaneously extracting different fertilizers. At the same time, the irrigation water flow is used to generate electricity to power the various functional modules, allowing operation in the field without an external power source, while also achieving a green and environmentally friendly goal.

[0039] Further optimization of the scheme includes a controller and a transmitter. The controller's main function is to receive measurement values ​​from the flow meter and concentration meter, and simultaneously control the main solenoid valve 30 and the branch pipe mechanism. The transmitter's main function is to transmit the measurement values ​​received by the controller to the terminal database, and simultaneously receive instructions from the terminal and transmit those instructions to the controller, thereby enabling automation, information sharing, and remote control.

[0040] The design was further optimized by connecting one end of a flexible hose to the inlet of the water pump 17, with the other end of the hose extending into the fertilizer water in the open fertilizer tank.

[0041] The scheme is further optimized. The main pipe 1 is connected to a pre-stage collar 7 and a post-stage collar 8. The pre-stage collar 7 and the post-stage collar 8 are located at both ends of the main solenoid valve 30. Several pre-stage connecting pipes 33 are connected to the pre-stage collar 7, and several post-stage connecting pipes 9 are connected to the post-stage collar 8. The two ends of the side wall of the branch pipe 14 are connected to a pre-stage connector 12 and a post-stage connector 13, respectively. The pre-stage connector 12 and the post-stage connector 13 on a branch pipe 14 are connected to a pre-stage connecting pipe 33 and a post-stage connecting pipe 9, respectively.

[0042] The design is further optimized by setting both ends of the branch pipe 14 as a closed structure. Water flows into the branch pipe 14 through the pre-connector 12 and flows out from the post-connector 13. Depending on the work requirements, two sets of water pumps 17 can be fixedly connected to both ends of the branch pipe 14, or one set of water pumps 17 can be fixedly connected to one end.

[0043] The main function of the pre-amplifier collar 7 and the post-amplifier collar 8 is to provide multiple pre-amplifier connectors 33 and multiple post-amplifier connectors 9. For example... Figure 1 and Figure 2 As shown, two sets of pre-stage connecting pipes 33 are provided on the pre-stage collar 7, and two sets of post-stage connecting pipes 9 are provided on the post-stage collar 8. Two sets of branch pipes 14 can be connected at the same time. The water-driven rotating parts in the two sets of branch pipes 14 can drive the water pumps 17 on the corresponding branch pipes 14 to operate, so as to achieve the purpose of simultaneously absorbing different fertilizers, or to enable multiple water pumps 17 to simultaneously absorb the same fertilizer, thereby improving the efficiency of fertilization.

[0044] The scheme is further optimized so that the front-stage solenoid valve 10 and the rear-stage solenoid valve 11 are connected to the front-stage pipe 33 and the rear-stage pipe 9, respectively.

[0045] like Figure 2 As shown, the pre-stage solenoid valve 10 and the post-stage solenoid valve 11 are electrically connected to the controller. Their main function is to control the water flow into the corresponding branch pipe 14 by controlling the opening and closing of the valves. With the opening of the main solenoid valve 30 unchanged, the water flow into the two sets of branch pipes 14 can be controlled by adjusting the opening and closing of the pre-stage solenoid valve 10 and the post-stage solenoid valve 11, thereby precisely controlling the operating power of the water pumps 17 on the two sets of branch pipes 14 and achieving different pumping effects between the two pumps 17.

[0046] like Figure 1 As shown, when the pre-pipe 33 and the post-pipe 9 are not connected to the branch pipe 14, the controller controls the pre-pipe solenoid valve 10 and the post-pipe solenoid valve 11 to be in the closed state to prevent irrigation water from flowing out.

[0047] In a further optimized design, the water-driven rotating component includes a drive shaft 16 rotatably connected within the branch pipe 14. Several impellers 15 are fixedly connected to the drive shaft 16 along its axial direction. The impellers 15 are located in the middle of the branch pipe 14. The drive shaft 16 is connected to the input shaft of the water pump 17.

[0048] like Figure 3 As shown, several support rods 29 are fixedly connected inside the branch pipe 14, and the drive shaft 16 is rotatably connected inside the branch pipe 14 through the support rods 29. When water flows in from the pre-stage connector 12 and out from the post-stage connector 13, the water flow impacts several impellers 15. The rotation of the impellers 15 drives the drive shaft 16 to rotate. The two ends of the drive shaft 16 pass through the two end side walls of the branch pipe 14 and drive the input shafts of the two sets of water pumps 17 to rotate, so that the water pumps 17 start working.

[0049] The scheme is further optimized. The branch pipe mechanism includes a connecting box 21 connected to the end of the inlet pipe 20 away from the main pipe 1. Several inlet branch pipes 22 are connected to the connecting box 21. Fertilizer solenoid valves 31 are connected to the several inlet branch pipes 22 respectively. The outlet 19 of a water pump 17 is connected to an inlet branch pipe 22 through a pipeline. An exhaust section is provided on the inlet branch pipe 22. The fertilizer solenoid valve 31 is located between the exhaust section and the connecting box 21.

[0050] like Figure 4 As shown, each water pump 17 draws water and fertilizer, which is then poured into the connecting box 21 through an inlet branch pipe 22. After mixing in the connecting box 21, the fertilizer flows into the main pipeline 1 through the inlet pipe 20 to mix with the irrigation water. The main function of the fertilizer solenoid valve 31 is to prevent water from flowing out of the corresponding inlet branch pipe 22 when the corresponding inlet branch pipe 22 is not connected to a water pump 17.

[0051] The exhaust system is further optimized by including an exhaust pipe 23 connected to the side wall of the inlet branch pipe 22. The exhaust pipe 23 is located at the end of the inlet branch pipe 22 away from the connecting box 21. An opening 27 is provided on the exhaust pipe 23. An exhaust valve block 25 is slidably connected inside the exhaust pipe 23. A position adjustment component is provided between the exhaust valve block 25 and the exhaust pipe 23. An exhaust channel 26 is provided inside the exhaust valve block 25. When the exhaust valve block 25 is located in the exhaust pipe 23, the water and fertilizer pumped by the water pump 17 enters the connecting box 21 through the inlet branch pipe 22. When the exhaust valve block 25 slides from inside the exhaust pipe 23 into the inlet branch pipe 22, the water and fertilizer pumped by the water pump 17 and the air flow out through the exhaust channel 26 and the opening 27.

[0052] The scheme is further optimized. The position adjustment component includes a pressing rod 24 fixedly connected to the side of the exhaust valve block 25 away from the water inlet branch pipe 22. The end of the pressing rod 24 away from the exhaust valve block 25 passes through the side wall of the exhaust pipe 23. A spring 28 is sleeved on the pressing rod 24. The two ends of the spring 28 are fixedly connected between the exhaust pipe 23 and the exhaust valve block 25, respectively.

[0053] like Figure 6 and Figure 7As shown, during use, such as when changing the fertilizer tank, the water pump 17 is prone to sucking in air, which reduces the pumping capacity of the water pump 17. Existing fertilizer applicators require manual removal of the connecting pipe to purge the air before they can operate normally. In this application, when there is no air in the pipeline, the vent valve block 25 is positioned inside the vent pipe 23 under the tension of the spring 28, and the fertilizer solution flows directly into the connecting box 21 through the inlet branch pipe 22. When air is present in the pipeline and needs to be purged, the operator presses the push rod 24 inward, the spring 28 is stretched, and the vent valve block 25 moves into the inlet branch pipe 22, blocking the inlet branch pipe 22. The fertilizer solution and air flow into the vent pipe 23 through the vent channel 26 and are discharged from the opening 27. When liquid is continuously and stably discharged from the opening 27, it indicates that venting is complete, and the push rod 24 can be released.

[0054] Further optimization of the scheme: the water-driven power generation mechanism includes a generator 4 fixedly connected to the front-end pipeline 2, a rotating shaft 6 fixedly connected to the transmission shaft of the generator 4 along the same axis, the axis of the rotating shaft 6 coinciding with the axis of the front-end pipeline 2, and a spiral blade 5 fixedly connected to the rotating shaft 6.

[0055] like Figure 1 and Figure 5 As shown, the end of the front-end pipe 2 closest to the generator 4 is connected to the inlet pipe 3. Irrigation water flows into the front-end pipe 2 through the inlet pipe 3. When the water flows in the front-end pipe 2, it impacts the spiral blades 5. The spiral blades 5 rotate under the impact and drive the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 drives the generator 4 to rotate and generate electricity, providing power for the operation of the flow meter, concentration meter, pre-stage solenoid valve 10, post-stage solenoid valve 11, main solenoid valve 30, and fertilizer solenoid valve 31.

[0056] To further optimize the design, the inlet end of the front-end pipeline 2 is connected to a backwashing device 32.

[0057] like Figure 1 As shown, the main function of the backwashing device 32 is to filter the water flowing into the main pipeline 1, preventing sediment from entering the impeller 15 and damaging the equipment. When the flow meter detects that the flow rate has dropped to a set threshold, the backwashing device 32 can flush its internal filter screen. Since the backwashing device 32 is existing technology, its working principle and process will not be described in detail.

[0058] The working process of this embodiment is as follows: Install the corresponding number of branch pipes 14 according to the type of fertilizer to be applied, and install one or two water pumps 17 on the branch pipes 14. Then, connect the inlet 18 of each water pump 17 to the inside of the fertilizer tank, and the outlet 19 to the inlet branch pipe 22 via a flexible hose. Before operation, the pre-stage solenoid valve 10 and the post-stage solenoid valve 11 are in the closed state, the main solenoid valve 30 is in the fully open state, and the fertilizer solenoid valve 31 is in the closed state. After irrigation water is introduced from the inlet pipe 3, the generator 4 generates electricity. At this time, the corresponding pre-stage solenoid valve 10, post-stage solenoid valve 11, and fertilizer solenoid valve 31 are opened by terminal control, while the main solenoid valve 30 is closed at a certain angle, allowing water to flow into the branch pipe 14. The water flow impacts the impeller 15, causing the water pump 17 to work, and the fertilizer water is transported through the inlet branch pipe 22 to the main pipeline 1 to mix with the irrigation water. During irrigation and fertilization, information such as irrigation water volume and fertilizer concentration in the farmland is monitored through flow meters and concentration meters. At the same time, the opening and closing of the main solenoid valve 30 is controlled by the terminal to control the water flow into the branch pipe 14, thereby adjusting the power of the water pump 17 and controlling the fertilization speed entering the pipeline system to achieve the purpose of uniform and precise fertilization.

[0059] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0060] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A self-generating intelligent hydrodynamic fertilizer applicator, characterized in that, include: Main pipeline (1), a main solenoid valve (30) is connected to the main pipeline (1), one end of the main pipeline (1) is connected to the farmland irrigation pipeline, and a flow meter is installed inside the other end of the main pipeline (1); A plurality of fertilizer pumping components, each of the fertilizer pumping components including a branch pipe (14), the two ends of the branch pipe (14) being connected to the main pipeline (1) respectively, and the main solenoid valve (30) being located between the inlet end and the outlet end of the branch pipe (14), a water-driven rotating component being provided inside the branch pipe (14), and a water pump (17) being provided on the branch pipe (14), the water-driven rotating component being used to drive the water pump (17) to rotate, and the water pump (17) being used to pump water fertilizer; Fertilizer feeder assembly, the fertilizer feeder assembly includes a water inlet pipe (20) connected to one end of the main pipeline (1) near the farmland irrigation pipeline, a concentration meter is installed in the water inlet pipe (20), a branch pipe mechanism is connected to the water inlet pipe (20), and several water pumps (17) pump water fertilizer into the main pipeline (1) through the branch pipe mechanism; The power generation component includes a front-end pipe (2) connected to the end of the main pipeline (1) away from the farmland irrigation pipeline. A water-driven power generation mechanism is provided in the front-end pipe (2). The water-driven power generation mechanism is used to supply power to the main solenoid valve (30), the branch pipe mechanism, the flow meter and the concentration meter. The main pipeline (1) is connected to a pre-stage collar (7) and a post-stage collar (8). The pre-stage collar (7) and the post-stage collar (8) are located at both ends of the main solenoid valve (30). The pre-stage collar (7) is connected to a plurality of pre-stage connecting pipes (33). The post-stage collar (8) is connected to a plurality of post-stage connecting pipes (9). The two ends of the side wall of the branch pipe (14) are connected to a pre-stage connector (12) and a post-stage connector (13). The pre-stage connector (12) and the post-stage connector (13) on a branch pipe (14) are connected to a pre-stage connecting pipe (33) and a post-stage connecting pipe (9) respectively. The pre-stage pipe (33) and the post-stage pipe (9) are respectively connected to a pre-stage solenoid valve (10) and a post-stage solenoid valve (11); the branch pipe mechanism includes a connecting box (21) connected to the end of the inlet pipe (20) away from the main pipeline (1), the connecting box (21) is connected to a plurality of inlet branch pipes (22), the plurality of inlet branch pipes (22) are respectively connected to fertilizer solenoid valves (31), the outlet (19) of a water pump (17) is connected to an inlet branch pipe (22) through a pipeline, the inlet branch pipe (22) is provided with an exhaust section, and the fertilizer solenoid valve (31) is located between the exhaust section and the connecting box (21); The exhaust section includes an exhaust pipe (23) connected to the side wall of the water inlet branch pipe (22). The exhaust pipe (23) is located at the end of the water inlet branch pipe (22) away from the connecting box (21). An opening (27) is provided on the exhaust pipe (23). An exhaust valve block (25) is slidably connected inside the exhaust pipe (23). A position adjustment component is provided between the exhaust valve block (25) and the exhaust pipe (23). An exhaust channel (26) is provided inside the exhaust valve block (25). When the exhaust valve block (25) is located in the exhaust pipe (23), the water fertilizer pumped by the water pump (17) enters the connecting box (21) through the water inlet branch pipe (22). When the exhaust valve block (25) slides from inside the exhaust pipe (23) into the water inlet branch pipe (22), the water fertilizer pumped by the water pump (17) and air flow out through the exhaust channel (26) and the opening (27).

2. The self-generating intelligent hydrodynamic fertilizer applicator according to claim 1, characterized in that: The water-driven rotating component includes a drive shaft (16) rotatably connected inside the branch pipe (14). Several impellers (15) are fixedly connected to the drive shaft (16) along the axial direction of the drive shaft (16). The several impellers (15) are located in the middle of the branch pipe (14). The drive shaft (16) is connected to the input shaft of the water pump (17).

3. The self-generating intelligent hydrodynamic fertilizer applicator according to claim 1, characterized in that: The position adjustment component includes a pressing rod (24) fixedly connected to the side of the exhaust valve block (25) away from the water inlet branch pipe (22). One end of the pressing rod (24) away from the exhaust valve block (25) passes through the side wall of the exhaust pipe (23). A spring (28) is sleeved on the pressing rod (24). The two ends of the spring (28) are fixedly connected between the exhaust pipe (23) and the exhaust valve block (25).

4. The self-generating intelligent hydrodynamic fertilizer applicator according to claim 1, characterized in that: The water-driven power generation mechanism includes a generator (4) fixedly connected to the front end pipe (2). A rotating shaft (6) is fixedly connected to the drive shaft of the generator (4) along the same axis. The axis of the rotating shaft (6) coincides with the axis of the front end pipe (2). A spiral blade (5) is fixedly connected to the rotating shaft (6).

5. The self-generating intelligent hydrodynamic fertilizer applicator according to claim 1, characterized in that: The inlet end of the front-end pipeline (2) is connected to a backwashing device (32).

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