Water and fertilizer integrated drip irrigation device

Abstract

The invention discloses a water and fertilizer integrated drip irrigation device, which belongs to the field of agricultural irrigation and fertilization and comprises a water and fertilizer integrated mixing unit and a drip irrigation unit connected with the water and fertilizer integrated mixing unit. The water and fertilizer integrated mixing unit comprises a box body, a batching cavity and a backflow storage cavity which are formed in the box body, a pump body I which is fixedly connected to one side of the box body and is used for pumping out liquid in the batching cavity, and a pump body II which is fixedly connected to one side of the box body and is used for pumping out liquid in the backflow storage cavity; the liquid fertilizer in the batching cavity is pumped into the drip irrigation pipe through the first pump body, the second pump body can work, the liquid fertilizer in the drip irrigation pipe is slowly pumped into the backflow storage cavity, and the liquid fertilizer flows in the drip irrigation pipe, so that the mixing uniformity is improved, and the problem that part of water droppers apply high-concentration fertilizer liquid and part of water droppers apply low-concentration fertilizer liquid is solved; meanwhile, when the liquid fertilizer flows in the drip irrigation pipe, the blocking risk caused by long-time retention and deposition of the liquid fertilizer in the pipe can be reduced, and the service life of the drip irrigation system is prolonged.

Description

Technical Field

[0001] The invention relates to the field of agricultural irrigation and fertilization, and more specifically to a water-fertilizer integrated drip irrigation device. Background Art

[0002] Integrated water and fertilizer drip irrigation is a precision agricultural irrigation technology that delivers water and fertilizer to the roots of crops on demand through an irrigation system, achieving simultaneous supply of water and nutrients and improving resource utilization efficiency.

[0003] At present, the integrated water-fertilizer drip irrigation device generally pumps liquid fertilizer into the drip irrigation pipe by pumping (for example, the Chinese invention patent application with the announcement number CN117296542A disclosed in the prior art uses a booster pump to pump the liquid for drip irrigation). Although the liquid fertilizer is discharged from the drip irrigation pipe to achieve irrigation, the fertilizer liquid in the drip irrigation pipe is retained for a long time at a low flow rate (for example, some components are uneven due to sedimentation or adsorption), and local concentration changes may occur, which will cause some drippers to apply high-concentration fertilizer liquid and some drippers to apply low-concentration fertilizer liquid. The high-concentration area may burn the root system, and the low-concentration area will cause nutrient deficiency, affecting crop consistency. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a water-fertilizer integrated drip irrigation device.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A water-fertilizer integrated drip irrigation device comprises a water-fertilizer integrated mixing unit and a drip irrigation unit connected to the water-fertilizer integrated mixing unit.

[0007] The water-fertilizer integrated mixing unit comprises a box body, a batching cavity and a reflux storage cavity provided inside the box body, a pump body 1 fixedly connected to one side of the box body to pump out the liquid in the batching cavity, a pump body 2 fixedly connected to one side of the box body to pump out the liquid in the reflux storage cavity, and a pump body 3 fixedly connected to one side of the box body to pump the reflux liquid fertilizer into the storage cavity;

[0008] The drip irrigation unit includes a plurality of drip irrigation pipes, a plurality of self-compensating drippers fixedly connected to the outside of the drip irrigation pipes, two confluence pipes respectively connected to both ends of the plurality of drip irrigation pipes, a pipe 1 connected to one of the drip irrigation pipes, a tee pipe connected to the other end of the pipe 1, and a return pipe connected to another drip irrigation pipe, wherein the other end of the return pipe is connected to the input end of the pump body 3, and the other two ends of the tee pipe are respectively connected to the output ends of the pump body 1 and the pump body 2.

[0009] Furthermore, a liquid inlet connected to the batching chamber is opened on one side of the box body, and a batching stirring part is connected to the inside of the batching chamber. A filter part is fixedly connected to the inner wall of the reflux storage chamber, and the filter part is used to filter the fertilizer liquid pumped into the reflux storage chamber by the pump body.

[0010] Furthermore, two cover bodies are fixedly connected to the upper end of the box body, a partition is fixedly connected to the middle part of the inner wall of the reflux storage chamber, and the partition divides the interior of the reflux storage chamber into a first regulating chamber and a second regulating chamber from top to bottom, the output end of the pump body three is connected to the first regulating chamber, and the input end of the pump body two is connected to the second regulating chamber.

[0011] Furthermore, a liquid distribution control unit is connected to the upper end of the partition, and the liquid distribution control unit includes a PH sensor and an EC sensor fixedly connected to the upper end of the partition, a plurality of hollow columns whose two ends are respectively connected to the upper end of the partition and the lower end of the cover body, a plurality of extensions integrally formed on the outside of the hollow columns, and a plurality of liquid discharge ports opened on the outside of the extensions, a plurality of rotary joints are fixedly connected to the upper end of the cover body, and the inner tube of the rotary joint passes through the cover body and extends into the hollow column, the input ends of the plurality of rotary joints are all connected to a Venturi mixing section 1, and the input end of the Venturi mixing section is connected to the output end of a pump body 5, the throat input ends of the plurality of Venturi mixing sections are all connected to flow valves, the plurality of pump bodies 5 are respectively fixedly connected to the upper end of the cover body and one side of the box body, and the input ends of the plurality of pump bodies 5 extend into the first regulating chamber, a pump body 4 is fixedly connected to one side of the box body, and the input end and output end of the pump body 4 are respectively connected to the first regulating chamber and the second regulating chamber.

[0012] Furthermore, a plurality of ion selective electrode sensors are fixedly connected to the inner wall of the second regulating chamber, and two hollow tubes are also fixedly connected to the inner wall of the second regulating chamber, and a plurality of openings are opened on the outer surfaces of the two hollow tubes; a nutrient preparation unit is connected to one side of the box body, and the nutrient preparation unit is connected to the two hollow tubes.

[0013] Furthermore, the nutrient blending unit includes a pump body 6 fixedly connected to one side of the box body, two Venturi mixing parts 2 fixedly connected to one side of the box body, a Venturi mixing part 3 connected to the input end of the Venturi mixing part 2, and a pipe 2 connecting the output end of the pump body 6 with the two Venturi mixing parts 3, and the input end of the pump body 6 is connected to the second regulating chamber, the diffusion ends of the two Venturi mixing parts 2 are respectively connected to two hollow tubes, the inner wall of the second regulating chamber is also fixedly connected to a filter, and the filter is located below the partition, and the outer surface of one side of the box body is fixedly connected to an ultrasonic generating part, and the output of the ultrasonic generating part is connected to the filter.

[0014] Furthermore, the upper and lower ends of the cover body are connected to dynamic mixing components, and the dynamic mixing component includes a motor fixedly connected to the upper end of the cover body, a gear 2 rotatably connected to the lower end of the cover body and movably sleeved on the outside of the hollow column, and a gear 1 rotatably connected to the lower end of the cover body and meshing with the gear 2. The output shaft of the motor passes through the cover body and is connected to the gear 1.

[0015] Furthermore, guide grooves are provided at the lower ends of the plurality of hollow columns, and a plurality of guide rods which are respectively inserted into the plurality of guide grooves are fixedly connected to the upper ends of the partitions.

[0016] Furthermore, the inner wall of the batching chamber, the inner wall of the first regulating chamber, and the inner wall of the second regulating chamber are all connected with liquid level sensors.

[0017] A drip irrigation method of a drip irrigation device comprises the following steps:

[0018] S1, pump body 1 pumps the liquid fertilizer in the batching chamber into the manifold and drip irrigation pipe through pipe 1, and the liquid fertilizer in the drip irrigation pipe is discharged from the self-compensating dripper for irrigation. At the same time, pump body 3 pumps the liquid fertilizer in the manifold and drip irrigation pipe into the reflux storage chamber;

[0019] S2, the liquid fertilizer that flows back into the reflux storage chamber enters the first regulating chamber above the partition, and the pH value and EC value of the refluxed liquid fertilizer are detected by the PH sensor and the EC sensor, and at the same time, the liquid fertilizer in the first regulating chamber is pumped into the venturi mixing part 1 through the pump body 5, and the venturi mixing part 1 mixes the liquid fertilizer with the regulating liquid and then enters the hollow column from the rotary joint, and is discharged from the hollow column and re-enters the first regulating chamber;

[0020] S3, the pump body 4 pumps the liquid fertilizer in the first regulating chamber into the second regulating chamber, detects the nutrient element concentration of the liquid fertilizer through the ion selective electrode sensor, extracts the liquid fertilizer in the second regulating chamber through the nutrient blending unit, mixes it with the regulating liquid, and then discharges it into the second regulating chamber;

[0021] S4. When the liquid fertilizer in the batching chamber is completely drained, the pump body 2 pumps the liquid fertilizer in the second regulating chamber into the pipe 1, and enters the manifold and the drip irrigation pipe from the pipe 1, and is discharged from the drip irrigation pipe for irrigation.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) This scheme adopts the design of liquid fertilizer return irrigation. The liquid fertilizer in the mixing chamber is pumped into the drip irrigation pipe through the pump body 1. The liquid fertilizer is discharged through the self-compensating dripper to achieve irrigation. At the same time, the pump body 2 can work to slowly pump the liquid fertilizer in the drip irrigation pipe into the return material storage chamber. The liquid fertilizer flows in the drip irrigation pipe, which improves the mixing uniformity and avoids the problem of some drippers applying high-concentration fertilizer liquid and some drippers applying low-concentration fertilizer liquid. At the same time, when the liquid fertilizer flows in the drip irrigation pipe, it can also reduce the risk of blockage caused by long-term retention and deposition of liquid fertilizer in the pipe, thereby extending the life of the drip irrigation system.

[0024] (2) In this solution, a first regulating chamber and a second regulating chamber are arranged in the reflux storage chamber, and the pH value and EC value of the liquid fertilizer in the first regulating chamber are detected by a PH sensor and an EC sensor. The liquid fertilizer in the first regulating chamber is mixed with the regulating liquid by a venturi mixing unit to adjust the pH value and EC value of the liquid fertilizer. The nutrient elements of the liquid fertilizer entering the second regulating chamber from the first regulating chamber are detected by an ion selective electrode sensor, and the liquid fertilizer is mixed with the regulating liquid by a nutrient blending unit to adjust the nutrient elements of the liquid fertilizer. Even if the liquid fertilizer may be degraded or chemically changed during the reflux process, resulting in differences in concentration and composition between the reflux liquid fertilizer and the original liquid fertilizer, the concentration and composition of the reflux liquid fertilizer can be made close to those of the original liquid fertilizer through multiple adjustments to the reflux liquid fertilizer, thereby ensuring the uniformity and stability of the reflux liquid fertilizer.

[0025] (3) This solution can dynamically stir the liquid fertilizer in the first regulating chamber through the dynamic mixing component. When the liquid fertilizer is mixed with the regulating liquid and discharged from the hollow column to re-enter the first regulating chamber, the dynamic mixing component drives the hollow column and the extension part to rotate, and dynamically stirs the liquid fertilizer inside the first regulating chamber to ensure that the liquid fertilizer is fully mixed with the regulating liquid, prevent the formation of pH gradient and EC gradient due to local uneven concentration, and at the same time shorten the preparation time of the liquid fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the dispensing chamber, the reflux storage chamber and the partition structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the pump body 4, the ultrasonic generating part and the liquid inlet of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the hollow column, extension part, drain port and dynamic mixing component of the present invention;

[0030] Figure 5 This is a schematic diagram of the ion selective electrode sensor and filter structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the hollow tube, opening and nutrient preparation unit of the present invention;

[0032] Figure 7 It is a schematic diagram of the guide groove, movable groove and inclined top block structure of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the guide rod, arc groove, pH sensor and EC sensor of the present invention.

[0034] Description of the numbers in the figure:

[0035] 1. Water-fertilizer integrated mixing unit; 11. Box; 12. Mixing chamber; 13. Reflux storage chamber; 131. Ion selective electrode sensor; 132. Filter; 133. Hollow tube; 134. Opening; 14. Pump body 1; 15. Pump body 2; 16. Pump body 3; 17. Liquid inlet; 18. Pump body 4; 19. Ultrasonic generator; 2. Drip irrigation unit; 21. Drip irrigation pipe; 22. Confluence pipe; 23. Self-compensating dripper; 24. Pipeline 1; 25. Tee pipe; 26. Reflux pipe; 3. Cover; 4. Liquid mixing control unit; 41. Pump body 5; 42. Venturi mixing section 1; 43. Flow valve; 44. Rotary joint; 45. Hollow column; 451. Guide groove; 46. Extension; 47. Drain port; 5. Ingredient mixing section; 6. Filter section; 7. Partition; 71. PH sensor; 72. EC sensor; 73. Guide rod; 8. Liquid level sensor; 9. Dynamic mixing component; 91. Motor; 92. Gear 1; 93. Gear 2; 10. Nutrient blending unit; 101. Venturi mixing section 2; 102. Venturi mixing section 3; 103. Pipeline 2; 104. Pump body 6. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 8 A water-fertilizer integrated drip irrigation device comprises a water-fertilizer integrated mixing unit 1 and a drip irrigation unit 2 connected to the water-fertilizer integrated mixing unit 1.

[0038] The water-fertilizer integrated mixing unit 1 comprises a box body 11, a batching chamber 12 and a reflux storage chamber 13 provided inside the box body 11, a pump body 14 fixedly connected to one side of the box body 11 to pump out the liquid in the batching chamber 12, a pump body 2 15 fixedly connected to one side of the box body 11 to pump out the liquid in the reflux storage chamber 13, and a pump body 3 16 fixedly connected to one side of the box body 11 to pump the reflux liquid fertilizer into the storage chamber;

[0039] The drip irrigation unit 2 includes a plurality of drip irrigation pipes 21, a plurality of self-compensating drippers 23 fixedly connected to the outside of the drip irrigation pipes 21, two conduits 22 respectively connected to the two ends of the plurality of drip irrigation pipes 21, a pipe 1 24 connected to one of the drip irrigation pipes 21, a tee pipe 25 connected to the other end of the pipe 1 24, and a return pipe 26 connected to another drip irrigation pipe 21, and the other end of the return pipe 26 is connected to the input end of the pump body 3 16, and the other two ends of the tee pipe 25 are respectively connected to the output ends of the pump body 1 14 and the pump body 2 15.

[0040] A liquid inlet 17 connected to the batching chamber 12 is provided on one side of the box body 11, and the batching chamber 12 is connected to the batching stirring part 5. The inner wall of the reflux storage chamber 13 is fixedly connected to the filter part 6, and the filter part 6 is used to filter the fertilizer liquid pumped into the reflux storage chamber 13 by the pump body 3 16.

[0041] Two cover bodies 3 are fixedly connected to the upper end of the box body 11, a partition plate 7 is fixedly connected to the middle of the inner wall of the reflux storage chamber 13, and the partition plate 7 divides the interior of the reflux storage chamber 13 into a first regulating chamber and a second regulating chamber from top to bottom, the output end of the pump body three 16 is connected to the first regulating chamber, the input end of the pump body two 15 is connected to the second regulating chamber, and a pump body four 18 is fixedly connected to one side of the box body 11, and the input end and output end of the pump body four 18 are respectively connected to the first regulating chamber and the second regulating chamber.

[0042] The inner wall of the batching chamber 12, the inner wall of the first regulating chamber, and the inner wall of the second regulating chamber are all connected to a liquid level sensor 8.

[0043] By adopting the above technical scheme, the prepared liquid fertilizer enters the batching chamber 12 from the liquid inlet 17, and the batching and stirring part 5 can continuously stir the liquid fertilizer in the batching chamber 12 to avoid local concentration changes due to long-term storage. The pump body 14 works to pump the liquid fertilizer in the batching chamber 12 into the three-way pipe 25, and discharges it from one end of the three-way pipe 25 and enters the pipe 1 24, and enters the manifold 22 and the drip irrigation pipe 21 from the pipe 1 24. The liquid fertilizer is discharged through the self-compensating dripper 23 to achieve irrigation. In this process, the pump body 3 16 can work to slowly pump the liquid fertilizer in the manifold 22 and the drip irrigation pipe 21 into the first regulating chamber in the reflux storage chamber 13 through the reflux pipe 26 (the pressure balance and flow matching of the pump body 3 16 and the pump body 14 during operation can be adjusted according to actual conditions, which belongs to the mature existing technology and will not be repeated here). The liquid fertilizer flows in the drip irrigation pipe 21, which improves the mixing uniformity and avoids some drippers from applying high-concentration fertilizer liquid. , the problem of some drippers applying low-concentration fertilizer liquid is solved, the irrigation quality is improved, and at the same time, when the liquid fertilizer flows in the drip irrigation pipe 21, the risk of blockage caused by long-term retention and deposition of liquid fertilizer in the pipeline can be reduced, and the life of the drip irrigation system is extended. When the liquid fertilizer is discharged from the pump body three 16, it first passes through the filter part 6, and the filter part 6 filters the impurities and sediments in the refluxed liquid fertilizer. The filtered liquid fertilizer falls into the first regulating chamber, and the pump body four 18 can pump the liquid fertilizer in the first regulating chamber into the second regulating chamber. When the liquid fertilizer in the batching chamber 12 is exhausted, the pump body two 15 works to pump the liquid fertilizer in the second regulating chamber into the three-way pipe 25 (the three interfaces of the three-way pipe 25 can be equipped with valves according to the regulation requirements to realize the opening and closing of the three interfaces, which belongs to the mature existing technology and is not repeated here), and is discharged from one end of the three-way pipe 25 and enters the pipeline one 24, and enters the confluence pipe 22 and the drip irrigation pipe 21 from the pipeline one 24. The liquid fertilizer is discharged through the self-compensating dripper 23 to realize the reflux irrigation.

[0044] like Figure 2-Figure 5 As shown, the upper end of the partition 7 is connected to a liquid distribution control unit 4, and the liquid distribution control unit 4 includes a PH sensor 71 and an EC sensor 72 fixedly connected to the upper end of the partition 7, a plurality of hollow columns 45 whose two ends are respectively connected to the upper end of the partition 7 and the lower end of the cover body 3, a plurality of extensions 46 integrally formed on the outside of the hollow column 45, and a plurality of liquid discharge ports 47 opened on the outside of the extension 46. A plurality of rotary joints 44 are fixedly connected to the upper end of the cover body 3, and the inner tube of the rotary joint 44 passes through the cover body 3 and extends into the hollow column 45. The input ends of the plurality of rotary joints 44 are all connected to a Venturi mixing section 142, and the input end of the Venturi mixing section 142 is connected to the output end of a pump body 5 41. The throat input ends of the plurality of Venturi mixing sections 42 are all connected to a flow valve 43. The plurality of pump bodies 5 41 are respectively fixedly connected to the upper end of the cover body 3 and one side of the box body 11, and the input ends of the plurality of pump bodies 5 41 extend into the first regulating chamber.

[0045] A plurality of ion selective electrode sensors 131 are fixedly connected to the inner wall of the second regulating chamber, and two hollow tubes 133 are also fixedly connected to the inner wall of the second regulating chamber, and a plurality of openings 134 are formed on the outer surfaces of the two hollow tubes 133. A nutrient preparation unit 10 is connected to one side of the box body 11, and the nutrient preparation unit 10 is connected to the two hollow tubes 133.

[0046] By adopting the above technical solution, when the liquid fertilizer enters the first regulating chamber, the pH value of the refluxed liquid fertilizer is first detected by the pH sensor 71, and at the same time, the pump body 5 41 can pump the liquid fertilizer in the first regulating chamber into the venturi mixing part 1 42, and the flow valve 43 can be connected to the device for supplying the regulating liquid. The regulating liquid (if the pH of the liquid fertilizer is high (alkaline), a diluted acidic regulating liquid can be used, and if the pH of the liquid fertilizer is low (acidic), a diluted alkaline regulating liquid can be used) enters the venturi mixing part 1 42 through the flow valve 43 and is mixed with the venturi mixing part 1 The liquid fertilizer is mixed, the flow valve 43 can monitor the flow of the regulating liquid to achieve pH adjustment of the returned fertilizer liquid, and then the EC value of the returned liquid fertilizer is detected by the EC sensor 72. The pump body 5 41 pumps the liquid fertilizer in the first regulating chamber into the Venturi mixing part 1 42, and the device for supplying the regulating liquid sends the regulating liquid into the flow valve 43. The regulating liquid (when the EC value is higher than the target range, by introducing an appropriate amount of clean water into the liquid fertilizer, the ion concentration is reduced, thereby reducing the EC value. When the EC value is lower than the set range, the automatic addition of concentrated water can be used. The liquid fertilizer in the first regulating chamber is pumped into the second regulating chamber through the pump body 18 after the EC regulation is completed, and then the element concentration (nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and other key element concentrations) in the liquid fertilizer are regulated by the ion selective electrode sensor 131 in the second regulating chamber. The nutrient mixing unit 10 can extract the liquid fertilizer in the second regulating chamber, mix it with the regulating liquid, and then discharge it back into the hollow tube 133. The liquid fertilizer entering the hollow tube 133 is discharged through the opening 134 and flows back into the second regulating chamber, so as to adjust the nutrient elements of the liquid fertilizer. Even if the liquid fertilizer may be degraded or chemically changed during the reflux process, resulting in differences in concentration and composition between the refluxed liquid fertilizer and the original liquid fertilizer, the concentration and composition of the refluxed liquid fertilizer can be made close to the original liquid fertilizer through multiple adjustments to the refluxed liquid fertilizer, thereby ensuring the uniformity and stability of the refluxed liquid fertilizer.

[0047] like Figure 3 , Figure 5 , Figure 6As shown, the nutrient preparation unit 10 includes a pump body 6 104 fixedly connected to one side of the box body 11, two Venturi mixing parts 2 101 fixedly connected to one side of the box body 11, a Venturi mixing part 3 102 connected to the input end of the Venturi mixing part 2 101, and a pipe 2 103 connecting the output end of the pump body 6 104 to the two Venturi mixing parts 3 102, and the input end of the pump body 6 104 is connected to the second regulating chamber, the diffusion ends of the two Venturi mixing parts 2 101 are respectively connected to two hollow tubes 133, and the inner wall of the second regulating chamber is also fixedly connected with a filter screen 132, and the filter screen 132 is located below the partition 7, the outer surface of one side of the box body 11 is fixedly connected with an ultrasonic generating part 19, and the output part of the ultrasonic generating part 19 is connected to the filter screen 132, and the outer surface of one side of the box body 11 is provided with an exhaust port connected to the second regulating chamber, and the exhaust port is provided with a valve and is used to discharge the gas in the second regulating chamber.

[0048] By adopting the above technical solution, the pump body 6 104 pumps the liquid fertilizer in the second regulating chamber into the venturi mixing section 3 102 through the pipeline 2 103, the throat of the venturi mixing section 3 102 is connected to the regulating liquid delivery pipe, the nutrient regulating liquid enters the venturi mixing section 3 102 through the throat of the venturi mixing section 3 102 and mixes with the liquid fertilizer, the liquid fertilizer discharged from the venturi mixing section 3 102 can enter the venturi mixing section 2 101, the throat of the venturi mixing section 2 101 is connected to the air supply pipeline, the gas enters the venturi mixing section 2 101 from the throat of the venturi mixing section 2 101 and mixes with the liquid fertilizer, and the gas and liquid are mixed from the venturi After being discharged from the second mixing section 101, the liquid enters the hollow tube 133 and is discharged from the opening 134. Due to the presence of bubbles in the liquid fertilizer, strong turbulence can be generated in the second regulating chamber, which promotes the full mixing of trace elements and the main liquid fertilizer, thereby ensuring that the various components are evenly dispersed. The bubbles will contact the filter 132 during the process of floating upward in the liquid fertilizer. The ultrasonic generating section 19 works to apply ultrasonic waves to the filter 132. The ultrasonic vibration can break larger bubbles into smaller microbubbles, thereby significantly increasing the contact area of ​​the gas-liquid interface, improving the dissolution efficiency of dissolved oxygen and other gases in the liquid fertilizer, and helping to improve the mixing uniformity and mass transfer efficiency of the liquid fertilizer.

[0049] like Figure 7 and Figure 8 As shown, the upper and lower ends of the cover body 3 are connected to a dynamic mixing component 9, and the dynamic mixing component 9 includes a motor 91 fixedly connected to the upper end of the cover body 3, a gear 2 93 rotatably connected to the lower end of the cover body 3 and movably sleeved on the outside of the hollow column 45, and a gear 1 92 rotatably connected to the lower end of the cover body 3 and meshing with the gear 2 93. The output shaft of the motor 91 passes through the cover body 3 and is connected to the gear 1 92.

[0050] A guide groove 451 is formed at the lower end of each of the hollow columns 45 , and a plurality of guide rods 73 respectively inserted into the guide grooves 451 are fixedly connected to the upper end of the partition plate 7 .

[0051] By adopting the above technical solution, the motor 91 drives the gear 1 92 to rotate, the gear 1 92 rotates to drive the gear 2 93 and the hollow column 45 to rotate, and the hollow column 45 rotates to drive the extension part 46 to rotate to dynamically stir the liquid fertilizer in the first regulating chamber, so that the liquid fertilizer discharged from the drain port 47 is evenly distributed in the first regulating chamber, and the liquid fertilizer and the regulating liquid in the first regulating chamber can be mixed more evenly.

[0052] Directions:

[0053] S1, pump body 14 pumps the liquid fertilizer in the batching chamber 12 into the manifold 22 and the drip irrigation pipe 21 through the pipe 1 24, and the liquid fertilizer in the drip irrigation pipe 21 is discharged from the self-compensating dripper 23 for irrigation, and at the same time, pump body 3 16 pumps the liquid fertilizer in the manifold 22 and the drip irrigation pipe 21 into the reflux storage chamber 13;

[0054] S2, the liquid fertilizer that flows back into the reflux storage chamber 13 enters the first regulating chamber above the partition 7, and the pH value and EC value of the refluxed liquid fertilizer are detected by the PH sensor 71 and the EC sensor 72. At the same time, the liquid fertilizer in the first regulating chamber is pumped into the venturi mixing part 1 42 through the pump body 5 41. The venturi mixing part 1 42 mixes the liquid fertilizer with the regulating liquid, and then enters the hollow column 45 from the rotary joint 44, and is discharged from the hollow column 45 to re-enter the first regulating chamber;

[0055] S3, the pump body 18 pumps the liquid fertilizer in the first regulating chamber into the second regulating chamber, the nutrient element concentration of the liquid fertilizer is detected by the ion selective electrode sensor 131, the liquid fertilizer in the second regulating chamber is extracted by the nutrient blending unit 10, mixed with the regulating liquid, and then discharged into the second regulating chamber;

[0056] S4. When the liquid fertilizer in the batching chamber 12 is completely drained, the pump body 2 15 pumps the liquid fertilizer prepared in the second regulating chamber into the pipe 1 24, and enters the manifold 22 and the drip irrigation pipe 21 from the pipe 1 24, and is discharged from the drip irrigation pipe 21 for irrigation.

[0057] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water-fertilizer integrated drip irrigation device, comprising a water-fertilizer integrated mixing unit (1) and a drip irrigation unit (2) connected to the water-fertilizer integrated mixing unit (1), characterized in that: The water-fertilizer integrated mixing unit (1) comprises a box (11), a batching chamber (12) and a reflux storage chamber (13) provided inside the box (11), a pump body (14) fixedly connected to one side of the box (11) for pumping out liquid in the batching chamber (12), a pump body (15) fixedly connected to one side of the box (11) for pumping out liquid in the reflux storage chamber (13), and a pump body (16) fixedly connected to one side of the box (11) for pumping reflux liquid fertilizer into the storage chamber; The drip irrigation unit (2) comprises a plurality of drip irrigation pipes (21), a plurality of self-compensating drippers (23) fixedly connected to the outside of the drip irrigation pipes (21), two conduit pipes (22) respectively connected to the two ends of the plurality of drip irrigation pipes (21), a pipe (24) connected to one of the drip irrigation pipes (21), a three-way pipe (25) connected to the other end of the pipe (24), and a return pipe (26) connected to the other drip irrigation pipe (21), wherein the other end of the return pipe (26) is connected to the input end of the third pump body (16), and the other two ends of the three-way pipe (25) are respectively connected to the output ends of the first pump body (14) and the second pump body (15).

2. A water-fertilizer integrated drip irrigation device according to claim 1, characterized in that: A liquid inlet (17) communicating with the batching chamber (12) is provided on one side of the box body (11), and a batching stirring portion (5) is connected to the inside of the batching chamber (12). A filter portion (6) is fixedly connected to the inner wall of the reflux storage chamber (13), and the filter portion (6) is used to filter the fertilizer liquid pumped into the reflux storage chamber (13) by the pump body (16).

3. The water-fertilizer integrated drip irrigation device according to claim 1, characterized in that: Two cover bodies (3) are fixedly connected to the upper end of the box body (11), a partition (7) is fixedly connected to the middle of the inner wall of the reflux storage chamber (13), and the partition (7) divides the interior of the reflux storage chamber (13) into a first regulating chamber and a second regulating chamber at the upper and lower parts. The output end of the pump body three (16) is connected to the first regulating chamber, and the input end of the pump body two (15) is connected to the second regulating chamber.

4. The water-fertilizer integrated drip irrigation device according to claim 3, characterized in that: The upper end of the partition (7) is connected to a liquid distribution control unit (4), and the liquid distribution control unit (4) comprises a pH sensor (71) and an EC sensor (72) fixedly connected to the upper end of the partition (7), a plurality of hollow columns (45) whose two ends are respectively connected to the upper end of the partition (7) and the lower end of the cover body (3), a plurality of extensions (46) integrally formed on the outside of the hollow columns (45), and a plurality of liquid discharge ports (47) provided on the outside of the extensions (46); the upper end of the cover body (3) is fixedly connected to a plurality of rotary joints (44), and the inner tube of the rotary joint (44) penetrates the cover body (3) and extends into the hollow column (45); the plurality of rotary joints (44) are connected to the upper end of the partition (7), and the inner tube of the rotary joint (44) penetrates the cover body (3) and extends into the hollow column (45); The input end of the adapter (44) is connected to a Venturi mixing section (42), and the input end of the Venturi mixing section (42) is connected to the output end of a pump body (41). The throat input ends of the plurality of Venturi mixing sections (42) are connected to a flow valve (43). The plurality of pump bodies (41) are respectively fixed to the upper end of the cover body (3) and one side of the box body (11), and the input ends of the plurality of pump bodies (41) extend into the first regulating chamber. The box body (11) is fixed to one side of the box body (11), and the input end and the output end of the pump body (18) are respectively connected to the first regulating chamber and the second regulating chamber.

5. The water-fertilizer integrated drip irrigation device according to claim 4, characterized in that: A plurality of ion selective electrode sensors (131) are fixedly connected to the inner wall of the second regulating chamber, and two hollow tubes (133) are also fixedly connected to the inner wall of the second regulating chamber, and the outer surfaces of the two hollow tubes (133) are provided with a plurality of openings (134); a nutrient preparation unit (10) is connected to one side of the box body (11), and the nutrient preparation unit (10) is connected to the two hollow tubes (133).

6. The water-fertilizer integrated drip irrigation device according to claim 5, characterized in that: The nutrient preparation unit (10) comprises a pump body (6) (104) fixedly connected to one side of a housing (11), two Venturi mixing parts (101) fixedly connected to one side of the housing (11), a Venturi mixing part (3) (102) connected to the input end of the Venturi mixing part (101), and a pipe (103) connecting the output end of the pump body (104) to the two Venturi mixing parts (102), and the input end of the pump body (104) is connected to a second regulating chamber, the diffusion ends of the two Venturi mixing parts (101) are respectively connected to two hollow tubes (133), the inner wall of the second regulating chamber is also fixedly connected to a filter screen (132), and the filter screen (132) is located below the partition (7), and an ultrasonic generator (19) is fixedly connected to the outer surface of one side of the housing (11), and the output of the ultrasonic generator (19) is connected to the filter screen (132).

7. The water-fertilizer integrated drip irrigation device according to claim 6, characterized in that: The upper and lower ends of the cover body (3) are both connected to a dynamic mixing assembly (9), and the dynamic mixing assembly (9) comprises a motor (91) fixedly connected to the upper end of the cover body (3), a second gear (93) rotatably connected to the lower end of the cover body (3) and movably sleeved on the outside of the hollow column (45), and a first gear (92) rotatably connected to the lower end of the cover body (3) and meshing with the second gear (93), and the output shaft of the motor (91) passes through the cover body (3) and is connected to the first gear (92).

8. The water-fertilizer integrated drip irrigation device according to claim 7, characterized in that: The lower ends of the plurality of hollow columns (45) are each provided with a guide groove (451), and the upper end of the partition plate (7) is fixedly connected with a plurality of guide rods (73) respectively inserted into the plurality of guide grooves (451).

9. The water-fertilizer integrated drip irrigation device according to claim 8, characterized in that: The inner wall of the batching chamber (12), the inner wall of the first regulating chamber, and the inner wall of the second regulating chamber are all connected to a liquid level sensor (8).

10. A drip irrigation method for a drip irrigation device, the method of use being applicable to the water-fertilizer integrated drip irrigation device of claim 9, characterized in that: The following steps are involved: S1, pump body 1 (14) pumps the liquid fertilizer in the mixing chamber (12) into the manifold (22) and the drip irrigation pipe (21) through the pipe 1 (24), and the liquid fertilizer in the drip irrigation pipe (21) is discharged from the self-compensating dripper (23) for irrigation, and at the same time, pump body 3 (16) pumps the liquid fertilizer in the manifold (22) and the drip irrigation pipe (21) into the return material storage chamber (13); S2, the liquid fertilizer that flows back into the reflux storage chamber (13) enters the first regulating chamber above the partition (7), and the pH value and EC value of the refluxed liquid fertilizer are detected by the pH sensor (71) and the EC sensor (72), and at the same time, the liquid fertilizer in the first regulating chamber is pumped into the venturi mixing part (42) through the pump body (41), and the venturi mixing part (42) mixes the liquid fertilizer with the regulating liquid and then enters the hollow column (45) from the rotary joint (44), and is discharged from the hollow column (45) and re-enters the first regulating chamber; S3, the pump body (18) pumps the liquid fertilizer in the first regulating chamber into the second regulating chamber, detects the nutrient element concentration of the liquid fertilizer through the ion selective electrode sensor (131), extracts the liquid fertilizer in the second regulating chamber through the nutrient mixing unit (10), mixes it with the regulating liquid, and then discharges it into the second regulating chamber; S4. When the liquid fertilizer in the batching chamber (12) is completely drained, the pump body (15) pumps the liquid fertilizer in the second regulating chamber into the pipe (24), and then from the pipe (24) into the manifold (22) and the drip irrigation pipe (21), and then is discharged from the drip irrigation pipe (21) for irrigation.

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