A negative pressure irrigation water and fertilizer integrated system for orchards

Abstract

The present invention provides a negative pressure irrigation water-fertilizer integrated system for an orchard, and relates to the technical field of irrigation devices. The system comprises a first irrigation cylinder and a second irrigation cylinder. A regulating and conducting pipe is rotatably arranged on the mixing box. The regulating and conducting pipe makes the first compartment and the third compartment synchronously conduct or close with the third compartment through fixed-axis rotation. Two groups of infusion pipes are also led out from the side of the mixing box. The two groups of infusion pipes are respectively connected with a plurality of groups of negative pressure irrigation pipes and pressure nozzles. The second compartment mixes the liquid input into the first compartment and the third compartment and outputs the mixed liquid through a confluence main pipe. The present invention satisfies the requirements of synchronous irrigation and inconsistent irrigation liquid at the same time. This irrigation method saves the laying of redundant pipelines, which is beneficial to cost control on the one hand, and can scientifically distinguish the irrigation of the roots and the outside of the roots of fruit trees on the other hand, so as to carry out modern orchard management more scientifically.

Description

Technical Field

[0001] The invention relates to the technical field of irrigation devices, in particular to a negative pressure irrigation water-fertilizer integrated system for orchards. Background Art

[0002] A high-stability negative pressure irrigation device and a negative pressure irrigation method thereof disclosed in the prior art with a publication number of "CN104542189B" include a closed water storage tank, an air supply pipe is arranged inside the water storage tank, the air supply pipe extends into the bottom of the water storage tank, a water supply and air supply port is arranged on the top of the water storage tank, the bottom of the water storage tank is connected to a negative pressure controller through a first water outlet pipe, the negative pressure controller includes a plurality of pressure control thick tubes, each of which is provided with a water supply thin tube, the water inlet of the water supply thin tube passes through the bottom of the pressure control thick tube and is connected to the water storage tank, the pressure control thick tubes are connected in parallel through the water supply thin tube, the water outlet of the water supply thin tube extends into the upper part of the pressure control thick tube, a water supply port is arranged on the top of the pressure control thick tube, the bottom of the pressure control thick tube is connected to a multi-tube connector through a second water outlet pipe, the multi-tube connector is connected to an infiltrator through a connecting pipe, the infiltrator is buried in the soil, the device has a simple structure and is convenient and adjustable, and the negative pressure amplitude is extremely small.

[0003] However, the above-mentioned device still has obvious defects during use: although the above-mentioned device realizes negative pressure irrigation, its irrigation method is relatively single. In the actual planting and management process, it is found that fruit trees not only need to be replenished with water, but also need to supplement nutrients and protect extraradical plants, and many other management steps that need to be combined with irrigation. In addition, there are also many differences in the liquids required for irrigation of the above-ground part and the roots of the orchard during the irrigation process. This leads to the need to lay irrigation pipelines separately, and this pipeline laying method is not conducive to cost control. Summary of the invention

[0004] The object of the present invention is to provide a negative pressure irrigation water-fertilizer integrated system for orchards to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A negative pressure irrigation water-fertilizer integrated system for an orchard, comprising a first irrigation cylinder and a second irrigation cylinder, wherein the first irrigation cylinder is connected to a first compartment of a mixing liquid box, and the second irrigation cylinder is connected to a third compartment of the mixing liquid box, and a second compartment is further provided between the first compartment and the third compartment of the mixing liquid box, and a regulating and connecting pipe is further rotatably provided on the mixing liquid box, and the regulating and connecting pipe makes the first compartment and the second compartment synchronously connected or closed with the third compartment through a fixed-axis rotation movement, and two groups of infusion pipes are further led out from the side of the mixing liquid box, and the two groups of infusion pipes are respectively connected to a plurality of groups of negative pressure irrigation pipes and pressure nozzles, the negative pressure irrigation pipes are buried in the soil layer, and the pressure nozzles are erected above the ground through a support frame;

[0007] The two groups of infusion tubes each include three shunt tubes and a confluence main tube, the three shunt tubes are respectively connected to the first compartment, the second compartment and the third compartment of the mixing box, the confluence main tube connects the three shunt tubes with the negative pressure irrigation tube or the pressure nozzle, the three shunt tubes are all installed with electric one-way valves, and the confluence main tube connected to the pressure nozzle is also provided with a pressurizing pump;

[0008] The second compartment mixes the liquids input into the first compartment and the third compartment and outputs the mixed liquids through the confluence manifold.

[0009] Preferably, the negative pressure irrigation pipe includes a water supply tank and a water storage tank, the water supply tank is connected to the confluence main pipe, the water supply tank and the water storage tank are connected by a negative pressure difference stabilizing pipe, the negative pressure difference stabilizing pipe is also sheathed with a porous irrigation device connected to the water storage tank, and the water storage tank actively supplies water to the crops through the porous irrigation device under the action of soil matrix suction.

[0010] Preferably, a water inlet is provided on the top of the water replenishment tank, the water inlet is connected to the confluence main pipe, the water inlet is provided with a float switch, a water outlet is provided at the bottom of the water replenishment tank, the water outlet is connected to the top of the negative pressure difference stabilizing tube, the bottom of the negative pressure difference stabilizing tube extends into the water storage tank and is connected to the water storage tank, and the aperture of the negative pressure difference stabilizing tube is larger than the apertures of the water outlet hole and the water inlet hole.

[0011] Preferably, the regulating conducting tube is located in the first compartment, the second compartment and the third compartment and is respectively provided with a first liquid inlet hole, a second liquid inlet hole and a third liquid inlet hole, the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole are interconnected, a fixed plate for closing the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole is also installed in the mixing box, and a rotating motor for driving the regulating conducting tube to rotate on a fixed axis is also provided on the mixing box, and the regulating conducting tube is driven to rotate by the movement of the rotating motor, so that the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole arranged thereon are matched or disengaged from the fixed plate, and in the disengaged state, the liquid in the first compartment and the third compartment enters the second compartment for mixing.

[0012] Preferably, a circuitous liquid mixing channel is further provided in the second compartment, and the liquid entering the second compartment is mixed in the liquid mixing channel and then flows out.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention uses a mixing box as a relay for irrigation liquid, which satisfies the needs of synchronous irrigation while also meeting the needs of inconsistent irrigation liquid. This irrigation method saves the need for laying redundant pipelines, which is beneficial to cost control on the one hand, and can scientifically differentiate irrigation between the roots and outside the roots of fruit trees on the other hand, thereby conducting more scientific modern orchard management. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the negative pressure irrigation pipe of the present invention;

[0017] Figure 3 It is a schematic diagram of the disassembly structure of the liquid mixing box and the regulating and conducting pipe of the present invention;

[0018] Figure 4 It is a schematic diagram of the internal structure of the liquid mixing box of the present invention;

[0019] Figure 5 This is a second structural schematic diagram of the present invention.

[0020] In the figure: 1 first irrigation cylinder, 2 second irrigation cylinder, 3 mixing box, 4 first compartment, 5 third compartment, 6 second compartment, 7 regulating and connecting pipe, 8 infusion pipe, 9 negative pressure irrigation pipe, 10 pressure nozzle, 11 support frame, 12 shunt pipe, 13 confluence main pipe, 14 electric one-way valve, 15 booster pump, 16 water supply tank, 17 water storage tank, 18 negative pressure difference stabilizing pipe, 19 multi-hole sprinkler, 20 float switch, 21 first liquid inlet hole, 22 second liquid inlet hole, 23 third liquid inlet hole, 24 fixed plate, 25 rotating motor, 26 mixing channel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-5 , the present invention provides a technical solution:

[0023] Embodiment 1:

[0024] A negative pressure irrigation water and fertilizer integrated system for an orchard, comprising a first irrigation cylinder 1 and a second irrigation cylinder 2, wherein the first irrigation cylinder 1 is connected to a first compartment 4 of a mixing liquid box 3, and the second irrigation cylinder 2 is connected to a third compartment 5 of the mixing liquid box 3, and a second compartment 6 is further provided between the first compartment 4 and the third compartment 5 of the mixing liquid box 3, and a regulating and connecting pipe 7 is further rotatably provided on the mixing liquid box 3, and the regulating and connecting pipe 7 makes the first compartment 4 and the second compartment 6 synchronously connected or closed with the third compartment 5 through a fixed axis rotation motion, and two groups of infusion pipes 8 are further led out from the side of the mixing liquid box 3, and the two groups of infusion pipes 8 are respectively connected to a plurality of groups of negative pressure irrigation pipes 9 and pressure nozzles 10, and the negative pressure irrigation pipes 9 are buried in the soil layer, and the pressure nozzles 10 are erected above the ground through a support frame 11;

[0025] The two groups of infusion tubes 8 each include three shunt tubes 12 and a confluence main tube 13. The three shunt tubes 12 are respectively connected to the first compartment 4, the second compartment 6 and the third compartment 5 of the mixing box 3. The confluence main tube 13 connects the three shunt tubes 12 with the negative pressure irrigation tube 9 or the pressure nozzle 10. The three shunt tubes 12 are each installed with an electric one-way valve 14. The confluence main tube 13 connected to the pressure nozzle 10 is also provided with a pressurizing pump 15.

[0026] The second compartment 6 mixes the liquids input into the first compartment 4 and the third compartment 5 and outputs the mixed liquids through the confluence manifold 13 .

[0027] In this embodiment, the first irrigation cylinder 1 and the second irrigation cylinder 2 serve as storage tanks for different irrigation liquids, which may be water and nutrient solution, water and pesticide, nutrient solution and pesticide, or other combinations of different irrigation liquids. The first irrigation cylinder 1 and the second irrigation cylinder 2 are connected to the mixing tank 3 through a pipeline. The mixing tank 3 is provided with three different compartments, each of which is connected to a plurality of groups of negative pressure irrigation pipes 9 or pressure nozzles 10 through a liquid infusion pipe 8. During the irrigation process, the electric one-way valve 14 is adjusted to open and close so that the confluence main pipe 13 is connected to different compartments. The advantage of this design is that the same irrigation liquid or different types of irrigation liquids can be synchronously output during the synchronous irrigation process. For example, water and nutrient solution, or other combinations of different types of liquids, can be simultaneously input into the two groups of confluence main pipes. At the same time, when liquid mixing is required, the first compartment 4 and the third compartment 5 are connected to the first compartment 4 and the third compartment 5. As a storage compartment for raw materials, the liquid in the first compartment 4 and the third compartment 5 enters the second compartment 6 for mixing by rotating the regulating conducting tube 7, and the mixed liquid is then introduced into the negative pressure irrigation pipe 9 or the pressure nozzle 10 through the infusion tube 8. Therefore, the above-mentioned mixing box 3 can not only realize the regulated introduction of different irrigation liquids, but also mix and stir different liquids, thereby enriching its functions and effectively simplifying the laying of tanks and pipelines. The negative pressure irrigation pipe 9 uses negative pressure to irrigate the inside of the soil, and the pressure nozzle 10 performs sprinkler irrigation under the drive of the booster pump 15, thereby performing sprinkler irrigation on the surface of the fruit trees. Furthermore, flow meters can be installed on the outlet pipes of the two groups of confluence pipe bodies and the first irrigation cylinder 1 and the second irrigation cylinder 2, so as to coordinate the amount of liquid pumped in from the first irrigation cylinder 1 and the second irrigation cylinder 2 to ensure that the mixing ratio is within the controlled range.

[0028] Embodiment 2:

[0029] The negative pressure irrigation pipe 9 includes a water replenishment tank 16 and a water storage tank 17. The water replenishment tank 16 is connected to the confluence main pipe 13. The water replenishment tank 16 and the water storage tank 17 are connected through a negative pressure difference stabilizing pipe 18. A porous irrigation device 19 connected to the water storage tank 17 is also provided outside the negative pressure difference stabilizing pipe 18. The water storage tank 17 actively supplies water to the crops through the porous irrigation device 19 under the action of soil matrix suction.

[0030] A water inlet is provided on the top of the water replenishment tank 16, and the water inlet is connected to the confluence main pipe 13. A float switch 20 is provided on the water inlet. A water outlet is provided at the bottom of the water replenishment tank 16, and the water outlet is connected to the top of the negative pressure difference stabilizing tube 18. The bottom of the negative pressure difference stabilizing tube 18 extends into the water storage tank 17 and is connected to the water storage tank 17. The aperture of the negative pressure difference stabilizing tube 18 is larger than the apertures of the water outlet and the water inlet.

[0031] In this embodiment, the specific structure of the negative pressure irrigation pipe 9 is further disclosed. The irrigation liquid enters the water supply tank 16 through the water inlet, and the water inlet is blocked or opened during the floating process of the float switch 20. The irrigation liquid in the water supply tank 16 enters the water storage tank 17 through the negative pressure difference stabilizing pipe 18. The water storage tank 17 is connected to the porous irrigation device 19. The porous irrigation device 19 is wrapped outside the negative pressure difference stabilizing pipe 18 and contacts the soil layer. The negative pressure difference stabilizing pipe 18 introduces the liquid in the water storage tank 17 into the soil through capillary action. When the moisture content of the soil in the crop root layer decreases, the negative pressure difference stabilizing pipe 18 is used to introduce the liquid in the water storage tank 17 into the soil. , the soil water potential decreases. Driven by the soil matrix potential, the root layer soil begins to absorb water from the porous emitter 19, and the porous emitter 19 absorbs water from the water tank 17 until the water potential of the porous emitter 19 and the soil it contacts reaches saturation. At this time, the porous emitter 19, the water tank 23 and the water replenishment tank 21 reach a balance. When the root layer soil is saturated, water replenishment stops. When the root layer soil is unsaturated, water is again requested from the water tank 17 through the porous emitter 19. After the water level in the water tank 17 decreases, the float switch 20 drops, and the irrigation liquid in the confluence main 13 is introduced again.

[0032] Embodiment three:

[0033] The regulating and controlling conducting tube 7 is located in the first compartment 4, the second compartment 6 and the third compartment 5, and is respectively provided with a first liquid inlet hole 21, a second liquid inlet hole 22 and a third liquid inlet hole 23. The first liquid inlet hole 21, the second liquid inlet hole 22 and the third liquid inlet hole 23 are interconnected. A fixing plate 24 for closing the first liquid inlet hole 21, the second liquid inlet hole 22 and the third liquid inlet hole 23 is also installed in the mixing box 3. A rotating motor 25 for driving the regulating and controlling conducting tube 7 to rotate on a fixed axis is also provided on the mixing box 3. The regulating and controlling conducting tube 7 is rotated by the movement of the rotating motor 25, so that the first liquid inlet hole 21, the second liquid inlet hole 22 and the third liquid inlet hole 23 arranged thereon are matched or disengaged from the fixing plate 24. In the disengaged state, the liquid in the first compartment 4 and the third compartment 5 enters the second compartment 6 for mixing.

[0034] A circuitous liquid mixing channel 26 is also provided in the second compartment 6 , and the liquid entering the second compartment 6 is mixed in the liquid mixing channel 26 and then flows out.

[0035] In this embodiment, the specific structure of the regulating and controlling conducting tube 7 is further disclosed, as well as how it is connected with the first compartment 4, the second compartment 6 and the third compartment 5. Since liquid mixing is required in the second compartment 6, a mixing channel 26 is also provided therein, and the liquid is fully mixed in the process of passing through the circuitous mixing channel 26, thereby ensuring sufficient mixing.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A negative pressure irrigation water and fertilizer integrated system for an orchard, comprising a first irrigation cylinder and a second irrigation cylinder, characterized in that: The first irrigation cylinder is connected to the first compartment of the mixing liquid box, the second irrigation cylinder is connected to the third compartment of the mixing liquid box, a second compartment is provided between the first compartment and the third compartment of the mixing liquid box, and a regulating and connecting pipe is rotatably provided on the mixing liquid box, and the regulating and connecting pipe makes the first compartment, the second compartment and the third compartment synchronously connected or closed through fixed-axis rotation; The regulating and controlling conducting tube is located in the first compartment, the second compartment and the third compartment, and is respectively provided with a first liquid inlet hole, a second liquid inlet hole and a third liquid inlet hole. The first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole are connected to each other. A fixing plate for closing the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole is also installed in the mixing box. A rotating motor for driving the regulating and controlling conducting tube to rotate along a fixed axis is also provided on the mixing box. The regulating and controlling conducting tube is driven to rotate by the movement of the rotating motor, so that the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole provided thereon are matched or dismatched with the fixing plate. In the dismatched state, the liquids in the first compartment and the third compartment enter the second compartment for mixing; Two groups of liquid infusion pipes are also led out from the side of the mixing tank, and the two groups of liquid infusion pipes are respectively connected to a plurality of groups of negative pressure irrigation pipes and pressure nozzles, the negative pressure irrigation pipes are buried in the soil layer, and the pressure nozzles are erected above the ground through a support frame; The two groups of infusion tubes each include three shunt tubes and a confluence main tube, the three shunt tubes are respectively connected to the first compartment, the second compartment and the third compartment of the mixing box, the confluence main tube connects the three shunt tubes with the negative pressure irrigation tube or the pressure nozzle, the three shunt tubes are all installed with electric one-way valves, and the confluence main tube connected to the pressure nozzle is also provided with a pressurizing pump; The second compartment mixes the liquids input into the first compartment and the third compartment and outputs the mixed liquids through the confluence manifold.

2. The negative pressure irrigation water-fertilizer integrated system for orchards according to claim 1, characterized in that: The negative pressure irrigation pipe includes a water replenishment tank and a water storage tank. The water replenishment tank is connected to the confluence main pipe. The water replenishment tank and the water storage tank are connected through a negative pressure difference stabilizing pipe. A porous irrigation device connected to the water storage tank is also sleeved on the negative pressure difference stabilizing pipe. The water storage tank actively supplies water to crops through the porous irrigation device under the action of soil matrix suction.

3. The negative pressure irrigation water-fertilizer integrated system for orchards according to claim 2, characterized in that: A water inlet is provided on the top of the water replenishment tank, and the water inlet is connected to the confluence main pipe. A float switch is provided on the water inlet. A water outlet is provided at the bottom of the water replenishment tank, and the water outlet is connected to the top of the negative pressure difference stabilizing tube. The bottom of the negative pressure difference stabilizing tube extends into the water storage tank and is connected to the water storage tank. The aperture of the negative pressure difference stabilizing tube is larger than the apertures of the water outlet and the water inlet.

4. The negative pressure irrigation water-fertilizer integrated system for orchards according to claim 3, characterized in that: The second compartment is also provided with a circuitous liquid mixing channel, and the liquid entering the second compartment is mixed in the liquid mixing channel and then flows out.

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