A high-efficiency drip irrigation and fertilization device and method

Abstract

The application provides a high-efficiency fertilization drip irrigation device and method, which comprises a machine box, a water inlet unit, a driving mechanism, a mixing mechanism, a treatment mechanism and a drip irrigation mechanism. The machine box is arranged in an irrigation field; the water inlet unit is arranged in the machine box and connected with a water supply pipeline to receive water supply and filter the water source; the driving mechanism is arranged in the machine box and communicated with the water inlet unit to convert the water flow provided by the water supply pipeline into rotary power; the mixing mechanism is arranged in the machine box to mix acid liquid and fertilizer liquid into irrigation liquid at a preset ratio; the treatment mechanism is arranged in the machine box and connected with the driving mechanism and the mixing mechanism; the drip irrigation mechanism is connected with the treatment mechanism to irrigate the irrigation field with the irrigation liquid filtered by the treatment mechanism through drip irrigation. The acid liquid, the fertilizer liquid and the water flow are strictly synchronized through mechanical linkage, and impurities are removed through backwashing operation bound with the water flow. The problems of unstable fertilization concentration and easy clogging of the drip head of the existing drip irrigation device are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water-saving irrigation, in particular to a high-efficiency drip irrigation and fertilization device and method. BACKGROUND

[0002] In modern agriculture, drip irrigation and fertilization technology is widely used in the field of farmland irrigation and fertilization. The drip irrigation and fertilization device is an agricultural device that combines irrigation and fertilization. It mixes soluble fertilizer with irrigation water through a mixing system, then delivers it to the drip arrow through a pipeline system, and forms drip irrigation, which can be directly provided to crops in proportion. Based on the diffusion principle of plant nutrient absorption, the device can realize accurate control of water and fertilizer, and significantly improve the utilization efficiency of water resources and fertilizer.

[0003] However, there are still some problems in the design and application of existing drip irrigation and fertilization devices. First, due to the change of water flow, the common Venturi fertilizer suction system and proportional pump cannot ensure the stability of the fertilization ratio, resulting in fluctuation of fertilization concentration. Second, when acid fertilizer and phosphorus and calcium-containing fertilizer are used in the same system, Ca-P precipitation reaction is easy to occur, which further causes the clogging of the drip head and filter screen, affecting the stable operation of the system. In addition, the filter screen in the existing system also needs to be cleaned frequently, increasing the workload of manual maintenance.

[0004] Therefore, it is necessary to provide a device to overcome the above problems. SUMMARY

[0005] The main purpose of the present application is to provide a high-efficiency drip irrigation and fertilization device and method to at least solve the problems of unstable fertilization concentration and easy clogging of the drip head of the existing drip irrigation and fertilization device.

[0006] In order to achieve the above purpose, the present application provides a high-efficiency drip irrigation and fertilization device, comprising: a machine box, the machine box is arranged in an irrigation field; a water inlet unit, the water inlet unit is arranged in the machine box and connected with a water supply pipeline to receive water supply and filter the water source; a driving mechanism, the driving mechanism is arranged in the machine box and communicated with the water inlet unit to convert the water flow provided by the water supply pipeline into rotary power; a mixing mechanism, the mixing mechanism is arranged in the machine box and connected with the driving mechanism to mix acid liquid and fertilizer liquid into irrigation liquid in a predetermined proportion under the driving of the driving mechanism; a treatment mechanism, the treatment mechanism is arranged in the machine box and connected with the driving mechanism and the mixing mechanism, the treatment mechanism is used for filtering the irrigation liquid mixed by the mixing mechanism, and the treatment mechanism is also used for performing backwashing operation; a drip irrigation mechanism, the drip irrigation mechanism is connected with the treatment mechanism to irrigate the irrigation field by drip irrigation after filtering the irrigation liquid by the treatment mechanism; wherein the driving mechanism comprises a transmission shaft, and the driving mechanism is also used for controlling the mixing ratio of the mixing mechanism and the backwashing operation of the treatment mechanism through the transmission shaft and according to the water supply flow of the water supply pipeline.

[0007] Further, the mixing mechanism comprises: a timing control component arranged on the transmission shaft to operate under the driving of the transmission shaft; a mixing component connected with the driving mechanism and the timing control component to receive the water flow from the driving mechanism, the timing control component being used to control the mixing ratio of the acid liquid and the fertilizer liquid of the mixing component in proportion to the flow of the water supply.

[0008] Further, the timing control component comprises: a first cam arranged on the transmission shaft; a first plunger pump core arranged in the machine box and abutting against the first cam, the first cam being used to drive the first plunger pump core to move to inject the acid liquid into the mixing component; a second cam arranged on the transmission shaft; a second plunger pump core arranged in the machine box and abutting against the second cam, the second cam being used to drive the second plunger pump core to move to inject the fertilizer liquid into the mixing component; wherein the first cam and the second cam have non-overlapping phases to make the fertilizer liquid and the acid liquid enter the mixing component in a preset sequence.

[0009] Further, the mixing component comprises: a first injection gun communicated with the liquid outlet of the first plunger pump core through a pipeline; a first static mixer connected with the driving mechanism to receive the water flow from the driving mechanism, the first static mixer being further connected with the first injection gun to mix the acid liquid and the water; a second injection gun communicated with the liquid outlet of the second plunger pump core through a pipeline; a second static mixer connected with the first static mixer through a pipeline, the second static mixer being used to mix the diluted acid liquid and the fertilizer liquid.

[0010] Further, the processing mechanism comprises: a reversing component connected with the mixing mechanism at a first end; a filtering component having a liquid inlet connected with the reversing component, the filtering component being used to filter the irrigation liquid and deliver it to the drip irrigation mechanism; an intermittent movement component arranged on the transmission shaft and connected with the reversing component, the intermittent movement component being used to drive the reversing component to switch the liquid flow direction to make the filtering component perform backwashing operation.

[0011] Further, the reversing component comprises: a three-way ball valve having a first opening connected with the mixing mechanism, a second opening connected with the liquid inlet of the filtering component, and a third opening used for sewage discharge; a first rotating shaft connected with the valve stem of the three-way ball valve; a first gear wheel arranged on the first rotating shaft and connected with the intermittent movement component; a torsional spring arranged on the first rotating shaft; wherein the intermittent movement component drives the three-way ball valve to reverse through the first gear wheel and the first rotating shaft to make the filtering component perform backwashing operation, and the torsional spring is used to drive the three-way ball valve to reset.

[0012] Further, the filtering component comprises: a filtering cylinder, a liquid inlet of the filtering cylinder being connected with the reversing component, and a liquid outlet of the filtering cylinder being connected with the drip irrigation mechanism; a filtering screen, the filtering screen being arranged in the filtering cylinder and connected with the liquid inlet of the filtering cylinder; and a liquid storage cylinder, the liquid storage cylinder being arranged in the filtering cylinder and connected with the filtering cylinder to provide flushing liquid in the backwashing operation.

[0013] Further, the intermittent movement component comprises: a gear shift gear set, the gear shift gear set being connected with the transmission shaft; a second transmission shaft, the second transmission shaft being connected with the gear shift gear set; and an incomplete gear assembly, the incomplete gear assembly being arranged on the second transmission shaft and engaged with the first gear, the transmission shaft driving the incomplete gear assembly to rotate through the gear shift gear set and the second transmission shaft, and the incomplete gear assembly being used to drive the intermittent reversing of the three-way ball valve.

[0014] Further, the mixing component further comprises a water hammer eliminator, the water hammer eliminator being used to eliminate water hammer and surge phenomena in the mixing component.

[0015] The application further provides a drip irrigation and fertilization method, the drip irrigation and fertilization method comprising:

[0016] The water source provided by the water supply pipeline is preliminarily filtered through the water inlet unit; kinetic energy of the water source provided by the water supply pipeline is converted into rotary power through the driving mechanism; the acid liquid and the fertilizer liquid are mixed into irrigation liquid at a preset ratio through the driving mechanism driving the mixing mechanism; the irrigation liquid is filtered and delivered to the drip irrigation mechanism through the processing mechanism; and the processing mechanism performs backwashing operation through the driving mechanism.

[0017] The application discloses a high-efficiency fertilization drip irrigation fertilization device, which comprises a machine box, a water inlet unit, a driving mechanism, a mixing mechanism, a treatment mechanism and a drip irrigation mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of the specification of the application are used to provide a further understanding of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0019] Figure 1 It is a structural schematic view of the high-efficiency fertilization drip irrigation fertilization device according to the application;

[0020] Figure 2 It is a sectional view of a filter part of the high-efficiency fertilization drip irrigation fertilization device according to the application;

[0021] Figure 3 It is a structural schematic view of the treatment mechanism of the high-efficiency fertilization drip irrigation fertilization device according to the application;

[0022] Figure 4 It is a local schematic view of the treatment mechanism of the high-efficiency fertilization drip irrigation fertilization device according to the application.

[0023] Reference signs:

[0024] 10. Water inlet unit; 20. Drive mechanism; 21. Transmission shaft; 30. Mixing mechanism; 31. Timing control component; 311. First cam; 312. First plunger pump core; 313. Second cam; 314. Second plunger pump core; 32. Mixing component; 321. First injection gun; 322. First static mixer; 323. Second injection gun; 324. Second static mixer; 325. Acid tank; 326. Fertilizer tank; 327. Water hammer eliminator; 40. Processing mechanism; 41. Reversing component; 411. Three-way ball valve; 412. First rotating shaft; 413. First gear; 414. Torsion spring; 415. Bearing seat; 42. Intermittent motion component; 421. Speed ​​change gear set; 422. Second transmission shaft; 423. Incomplete gear assembly; 43. Filter component; 431. Filter cartridge; 432. Filter screen; 433. Liquid storage tank. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 As shown, a high-efficiency drip irrigation fertilization device of the present invention includes: a housing, a water inlet unit 10, a drive mechanism 20, a mixing mechanism 30, a processing mechanism 40, and a drip irrigation mechanism. The machine casing is installed in the irrigated field; the water inlet unit 10 is installed in the machine casing and connected to the water supply pipe to receive water and filter the water source; the drive mechanism 20 is installed in the machine casing and connected to the water inlet unit 10 to convert the kinetic energy of the water supplied by the water supply pipe into rotational power; the mixing mechanism 30 is installed in the machine casing and connected to the drive mechanism 20 to mix the acid solution and fertilizer solution into irrigation solution according to a preset ratio under the drive mechanism 20; the treatment mechanism 40 is installed in the machine casing and connected to the drive mechanism 20 and the mixing mechanism 30. The treatment mechanism 40 is used to filter the irrigation solution mixed by the mixing mechanism 30 and also to perform backwashing operations; the drip irrigation mechanism is connected to the treatment mechanism 40 to irrigate the irrigated field with the filtered irrigation solution by drip irrigation; wherein, the drive mechanism 20 includes a drive shaft 21, and the drive mechanism 20 is also used to control the mixing ratio of the mixing mechanism 30 and the backwashing operation of the treatment mechanism 40 through the drive shaft 21 and according to the water supply flow rate of the water supply pipe. By ensuring strict synchronization of acid, fertilizer, and water flow through mechanical linkage, the problem of concentration fluctuation is solved. Secondly, the backwashing operation, which is tied to the water flow, achieves precise automatic anti-clogging. Furthermore, by controlling the timing, the chemical precipitation caused by the mixing of acid and fertilizer is prevented from occurring at the source, ensuring the stable and smooth operation of the drip irrigation system. This solves the problems of unstable fertilizer concentration and easy clogging of drippers in existing drip irrigation fertilization devices.

[0027] Furthermore, such as Figure 1As shown, the mixing mechanism 30 comprises a timing control component 31 and a mixing component 32. The timing control component 31 is arranged on the transmission shaft 21 to operate under the drive of the transmission shaft 21; the mixing component 32 is connected with the drive mechanism 20 and the timing control component 31 to receive the water flow from the drive mechanism 20, and the timing control component 31 is used to proportionally control the mixing ratio of the acid liquid and the fertilizer liquid of the mixing component 32 according to the flow of the water supply. The water inlet unit 10 comprises a water inlet total valve and a coarse filter unit, which can control the water flow of the water supply pipeline and filter the large-particle impurities in the water, ensuring that the water supply is clean and the pressure is stable. The cabinet has a cuboid structure, and multiple chambers are arranged in the cabinet to accommodate various units. An inspection door and a window are arranged on the outside of the cabinet to facilitate the inspection and maintenance of the internal components during operation. The drive mechanism 20 can adopt a magnetic coupling hydraulic drive motor, which uses the water flow power of the water supply pipeline to drive a turbine installed inside the water pipe to rotate directly under the impact of the water flow. A set of permanent magnets are arranged on the turbine shaft, and a driven magnetic ring or a driven magnetic shaft is connected with the transmission shaft 21. The driven magnetic ring or the driven magnetic shaft is coupled with the permanent magnets on the turbine shaft, and a non-magnetic isolation sleeve is arranged between the turbine shaft and the driven magnetic ring or the driven magnetic shaft coupled therewith, so as to realize the rotation of the transmission shaft 21 by hydraulic drive. The drive mechanism 20 can also directly use a water turbine to drive the transmission shaft 21 to rotate by using the water flow kinetic energy. The upstream end of the mixing mechanism 30 is communicated with the water outlet of the drive mechanism 20, and the downstream end is communicated with the treatment mechanism 40. The timing control component 31 is used to control the mixing process of the mixing component 32, and the mixing component 32 is used to uniformly mix the acid liquid, the fertilizer liquid and the water together. The drive mechanism 20 is coupled with the water flow of the water supply pipeline, and the transmission shaft 21 of the drive mechanism 20 is synchronized with the water flow. The drive mechanism 20 serves as a single power source, and distributes power to two core functions through the transmission shaft 21. After being distributed to the mixing mechanism 30, the fertilizer liquid and the acid liquid can be injected into the mixing component 32 in a preset sequence and a preset ratio through the timing control component 31; after being distributed to the treatment mechanism 40, the treatment mechanism 40 can perform backwashing operation according to the water flow. Through the precise cooperation of the timing control component 31 and the mixing component 32, the change of the water flow can be adapted, the acid liquid and the fertilizer liquid in the irrigation liquid can be kept stable, and the problem of uneven fertilizer application ratio caused by flow fluctuation in traditional equipment can be avoided.

[0028] Further, as Figure 1As shown, the timing control component 31 comprises a first cam 311, a first plunger pump core 312, a second cam 313 and a second plunger pump core 314. The first cam 311 is arranged on the transmission shaft 21; the first plunger pump core 312 is arranged in the machine box and abuts against the first cam 311, the first cam 311 is used to drive the first plunger pump core 312 to move to inject the acid liquid into the mixing component 32; the second cam 313 is arranged on the transmission shaft 21; the second plunger pump core 314 is arranged in the machine box and abuts against the second cam 313, the second cam 313 is used to drive the second plunger pump core 314 to move to inject the fertilizer liquid into the mixing component 32; wherein the first cam 311 and the second cam 313 have non-overlapping phases to make the fertilizer liquid and the acid liquid enter the mixing component 32 in a preset sequence. The phase and lift of the first cam 311 and the second cam 313 determine the sequence and injection amount of the acid liquid and the fertilizer liquid into the mixing component 32, and by setting the phase of the first cam 311 and the second cam 313, the sequence of the acid liquid and the fertilizer liquid entering the mixing component 32 is determined, which avoids the acid liquid and the fertilizer liquid entering at the same time, so that the acid liquid and the fertilizer liquid can be mixed after dilution, which can weaken the Ca-P precipitation reaction in the irrigation liquid in the mixing component 32, reduce precipitation, and avoid high-concentration acid liquid and fertilizer liquid meeting. In this embodiment, the acid liquid is injected first, and then the fertilizer liquid is injected. The lift of the first cam 311 and the second cam 313 can determine the injection amount of the corresponding acid liquid and fertilizer liquid pumped into the mixing component 32. The scheme utilizes the transmission shaft 21 synchronized with the water flow to provide power, while adapting to the change of water flow, utilizes the first cam 311 to drive the first plunger pump core 312 to pump the acid liquid into the mixing component 32 at a fixed point and a fixed amount, utilizes the second cam 313 to drive the second plunger pump core 314 to pump the fertilizer liquid into the mixing component 32 at a fixed point and a fixed amount, and through the first plunger pump core 312 and the second plunger pump core 314, the acid liquid and the fertilizer liquid can be accurately injected into the mixing component 32. At the same time, the stroke of the first plunger pump core 312 and the second plunger pump core 314 can also be independently fine-tuned, and the stroke can be adjusted specifically by setting the stroke adjusting nut to meet the specific needs of different crops for the proportion of acid liquid and fertilizer liquid.

[0029] Further, as Figure 1As shown, the mixing component 32 comprises a first injection gun 321, a first static mixer 322, a second injection gun 323 and a second static mixer 324. The first injection gun 321 is connected to the liquid outlet of the first plunger pump core 312 through a pipe; the first static mixer 322 is connected to the driving mechanism 20 to receive the water flow from the driving mechanism 20, and is also connected to the first injection gun 321 to mix the acid liquid and water; the second injection gun 323 is connected to the liquid outlet of the second plunger pump core 314 through a pipe; the second static mixer 324 is connected to the first static mixer 322 through a pipe, and is used to mix the diluted acid liquid and the fertilizer liquid. The mixing component 32 further comprises an acid liquid tank 325 and a fertilizer liquid tank 326. The liquid inlet of the first plunger pump core 312 is connected to the acid liquid tank 325, and the liquid outlet thereof is connected to the liquid inlet of the first injection gun 321, so that the acid liquid finally enters the first static mixer 322 through the first injection gun 321. The liquid inlet of the second plunger pump core 314 is connected to the fertilizer liquid tank 326, and the liquid outlet thereof is connected to the second injection gun 323, so that the fertilizer liquid finally enters the second static mixer 324. The lengths of the first static mixer 322 and the second static mixer 324 are 8 to 10 times of the inner diameter of the water supply pipe, so that the acid liquid or the fertilizer liquid can be fully mixed before entering the next component. The liquid inlet of the first static mixer 322 is connected to the liquid outlet of the driving mechanism 20, the liquid outlet of the first static mixer 322 is connected to the liquid inlet of the second static mixer 324, and the liquid outlet of the second static mixer 324 is connected to the processing mechanism 40. The beneficial effect of the present scheme is to realize the dilution and mixing, and to avoid the precipitation caused by the direct contact between the high-concentration acid liquid and the fertilizer liquid through two arrangements. The first arrangement avoids the simultaneous entry of the acid liquid and the fertilizer liquid into the mixing component 32 through the timing control component 31, and the second arrangement avoids the direct contact between the high-concentration acid liquid and the fertilizer liquid through the first static mixer 322 and the second static mixer 324. To avoid the backflow of the acid liquid or the fertilizer liquid, a one-way valve or other anti-backflow component can be arranged on the corresponding pipe. In the present embodiment, the preset ratio of the acid liquid and the fertilizer liquid can be set according to the needs of crops.

[0030] Further, as Figure 1 , Figure 3 and Figure 4As shown, the processing mechanism 40 comprises a reversing component 41, a filtering component 43 and an intermittent motion component 42. The first end of the reversing component 41 is connected with the mixing mechanism 30; the liquid inlet of the filtering component 43 is connected with the reversing component 41, the filtering component 43 is used for filtering the irrigation liquid and delivering to the drip irrigation mechanism; the intermittent motion component 42 is arranged on the transmission shaft 21 and connected with the reversing component 41, the intermittent motion component 42 is used for driving the reversing component 41 to switch the liquid flow direction to make the filtering component 43 perform the backwashing operation. The intermittent motion component 42 is directly driven by the transmission shaft 21 and indirectly driven by the water flow power, the motion of the intermittent motion component 42 is determined by the water flow at the same time, the intermittent motion component 42 can drive the reversing component 41 to switch the irrigation liquid flow direction according to the water flow in a preset proportion. The reversing component 41 can make the filtering component 43 spontaneously perform the backwashing operation every time it is reversed, so as to strip the impurities trapped in the inside of the filtering component 43 and discharge them through the preset blow-off port, after the reversing component 41 is reversed, it can reset itself, at this time, the whole processing mechanism 40 continues to perform the filtering operation on the irrigation liquid and continues to deliver the irrigation liquid to the drip irrigation mechanism. The present scheme realizes the periodic backwashing of mechanical self-control relying on the transmission shaft 21, without external electric control and manual intervention, so that the filtering component 43 can continuously keep clean, the filtering component 43 can continuously operate, and the clogging probability of the whole device is greatly reduced. In the embodiment, the above-mentioned forward flow and backwashing paths can form a closed loop by a conventional pipeline in the specific arrangement of the field pipe network. According to the needs, the valve is arranged to stabilize the operation of the device and the later maintenance, the pipeline and the valve can be arranged by using the existing technology.

[0031] Further, as Figure 1 , Figure 3 and Figure 4The reversing component 41 includes a three-way ball valve 411, a first rotating shaft 412, a first gear 413 and a torsion spring 414. The first opening of the three-way ball valve 411 is connected with the mixing mechanism 30, the second opening of the three-way ball valve 411 is connected with the liquid inlet of the filtering component 43, and the third opening of the three-way ball valve 411 is used for discharging dirt. The first rotating shaft 412 is connected with the valve rod of the three-way ball valve 411. The first gear 413 is arranged on the first rotating shaft 412 and is connected with the intermittent motion component 42. The torsion spring 414 is arranged on the first rotating shaft 412. The intermittent motion component 42 drives the three-way ball valve 411 to reverse through the first gear 413 and the first rotating shaft 412, so that the filtering component 43 performs the backwashing operation. The torsion spring 414 is used for driving the three-way ball valve 411 to reset. The three-way ball valve 411 can be a three-way three-position L-shaped ball valve. When the reversing component 41 does not perform the backwashing operation, the third opening is always closed. The irrigation liquid flows out from the liquid outlet of the mixing mechanism 30, flows into the first opening of the three-way ball valve 411 through the pipeline, flows out from the second opening, then enters the liquid inlet of the filtering component 43, and flows into the drip irrigation mechanism from the liquid outlet of the filtering component 43. When the reversing component 41 performs the backwashing operation, the first opening of the three-way ball valve 411 is closed, the second opening and the third opening are communicated, the irrigation liquid flows out from the filtering component 43 in the reverse direction, carries the impurities in the filtering component 43, flows out from the liquid inlet of the filtering component 43, flows into the second opening, and flows out from the third opening. The third opening is arranged as a dirt discharge port. Through the backwashing operation, the impurities in the filtering component 43 can be discharged. The first rotating shaft 412 can be fixed in the box through a bearing seat 415. The torsion spring 414 is arranged on the first rotating shaft 412. The first end of the torsion spring 414 can be fixed on the first gear 413 through a stop block. The second end of the torsion spring 414 can be fixed on the bearing seat 415 through another stop block. The first gear 413 is fixed on the first rotating shaft 412. The intermittent motion component 42 can drive the first gear 413 to move intermittently. The rotation of the first gear 413 drives the first rotating shaft 412 to rotate, and further drives the three-way ball valve 411 to rotate, so that the reversing process is realized. In this process, the torsion spring 414 is twisted and simultaneously stores angular kinetic energy. After the rotation of the first gear 413 driven by the intermittent motion component 42 is completed, the torsion spring 414 releases the angular kinetic energy and drives the valve rod to rotate, so that the three-way ball valve 411 is reset. The filtering component 43 continues to perform the filtering operation. The reset time driven by the torsion spring 414 can be prolonged by arranging a damper. Through the short chain mechanical structure in the reversing component 41, the forward driving and elastic reset are realized by cooperating with the torsion spring 414, so that the reversing reliability is ensured.

[0032] Further, as Figure 1 and Figure 2As shown, the filtering component 43 comprises a filtering cylinder 431, a filtering screen 432 and a liquid storage cylinder 433. The liquid inlet of the filtering cylinder 431 is connected with the reversing component 41, and the liquid outlet of the filtering cylinder 431 is connected with the drip irrigation mechanism. The filtering screen 432 is arranged in the filtering cylinder 431 and connected with the liquid inlet of the filtering cylinder 431. The liquid storage cylinder 433 is arranged in the filtering cylinder 431 and communicates with the filtering cylinder 431 to provide flushing liquid in the backwashing operation. The liquid inlet of the filtering cylinder 431 communicates with the second opening of the three-way ball valve 411, and the filtering screen 432 is detachably arranged in the filtering cylinder 431. The filtering screen 432 is a cylindrical structure. In the normal filtering operation, the irrigation liquid flows from the inside of the filtering screen 432 to the outside of the filtering screen 432, part of which enters the liquid storage cylinder 433, and the rest enters the drip irrigation mechanism for irrigation operation. The liquid storage cylinder 433 extends in the vertical direction and is arranged in the upper space of the filtering cylinder 431. In the backwashing operation, the irrigation liquid in the mixing mechanism 30 cannot enter the filtering component 43 through the reversing component 41 due to the closing of the first opening. After the second opening and the third opening are communicated, the third opening is a low-pressure area, and the liquid storage cylinder 433 is a relatively high-pressure area. The irrigation liquid in the liquid storage cylinder 433 functions as flushing liquid, which is converted into flushing liquid and flows reversely from the outside of the filtering screen 432 into the inside of the filtering screen 432 to backwash the filtering screen 432. Then the flushing liquid enters the second opening of the three-way ball valve 411 and carries impurities out of the third opening. When the three-way ball valve 411 is reset, the mixing mechanism 30 is a high-pressure area, and the liquid storage cylinder 433 is a relatively low-pressure area. The irrigation liquid enters the liquid storage cylinder 433 again to supplement the irrigation liquid lost in the liquid storage cylinder 433. The filtering component 43 constitutes a self-supply liquid backwashing system through the arrangement of the liquid storage cylinder 433, which can realize backwashing operation without additional water and power.

[0033] Further, as Figure 3 and Figure 4As shown, the intermittent motion component 42 comprises a variable gear set 421, a second transmission shaft 422 and an incomplete gear assembly 423. The variable gear set 421 is connected with the transmission shaft 21; the second transmission shaft 422 is connected with the variable gear set 421; the incomplete gear assembly 423 is arranged on the second transmission shaft 422 and engaged with the first gear 413, the transmission shaft 21 drives the incomplete gear assembly 423 to rotate through the variable gear set 421 and the second transmission shaft 422, and the incomplete gear assembly 423 is used to drive the three-way ball valve 411 to intermittently reverse. The frequency of backwashing operation determined by the water flow is ultimately determined by the variable gear set 421 and the incomplete gear assembly 423, and by means of the tooth segment structure of the incomplete gear assembly 423, the reversing action is triggered only in the set angular region, and the reversing component 41 remains stationary at other times, so as to ensure that the filtering process is in a stable state for a long time. By setting and matching the tooth segment angles of the variable gear set 421 and the incomplete gear assembly 423, the reversing period determined by the water flow can be accurately set. The incomplete gear assembly 423 can comprise one or more incomplete gears. The present scheme realizes the combination of long-time filtering and short-time backwashing operation through pure mechanical indexing, ensures that the backwashing operation is strictly performed according to the water flow, can more finely expand the backwashing operation, and can realize adjustment of different parameters by replacing the gears.

[0034] Further, as shown in Figure 1 The mixing component 32 further comprises a water hammer eliminator 327. The water hammer eliminator 327 is used to eliminate water hammer and surge phenomena in the mixing component 32. During the process of closing and connecting the first opening of the three-way ball valve 411, the pressure in the mixing mechanism 30 changes, and the water hammer eliminator 327 can store a small amount of irrigation liquid for a short time through the cavity elasticity without changing the existing flow, balance the instantaneous pressure difference, thereby reducing the backflow impact of the first injection gun 321 and the second injection gun 323, and ensuring smooth operation of the mixing mechanism 30.

[0035] In specific work, the water inlet unit 10 carries out preliminary filtration on the water supply of the water supply pipeline and delivers to the driving mechanism 20, the driving mechanism 20 converts the water flow energy into rotary power and then delivers the water to the mixing mechanism 30, the driving mechanism 20 controls the mixing mechanism 30 and the processing mechanism 40 to realize sequence injection and backwashing operation through the transmission shaft 21. The transmission shaft 21 controls the first plunger pump core 312 and the second plunger pump core 314 through the first cam 311 and the second cam 313 respectively, so that the acid liquid and the fertilizer liquid are delivered to the first static mixer 322 and the second static mixer 324 respectively according to the preset sequence and the preset proportion, and then the generated irrigation liquid is delivered to the processing mechanism 40 after being fully mixed, and the processing mechanism 40 delivers the irrigation liquid to the drip irrigation mechanism. The processing mechanism 40 has two operation functions of filtration and backwashing, which are realized by the intermittent motion component 42 driven by the transmission shaft 21, the intermittent motion component 42 drives the reversing component 41 to reverse intermittently, after the reversing component 41 reverses, the irrigation liquid flows reversely from the filtering component 43 into the reversing component 41 and finally flows out from the sewage outlet, realizing the backwashing operation, after the reversing component 41 resets, the processing mechanism 40 ends the backwashing operation and normally executes the filtration operation. The application realizes the mixing and delivery operation of the drip irrigation liquid through a pure mechanical structure, ensures that the acid liquid, the fertilizer liquid and the water flow are strictly synchronous through mechanical linkage, solves the concentration fluctuation problem, and through the backwashing operation bound with the water flow, realizes the fine automatic anti-blocking, and through the timing control, prevents the chemical precipitation caused by the mixing of the acid liquid and the fertilizer liquid from the source, and guarantees the stable and smooth operation of the drip irrigation system.

[0036] The second embodiment of the application also provides a drip irrigation fertilization method, and the drip irrigation fertilization method is:

[0037] The water source provided by the water supply pipeline is preliminarily filtered through the water inlet unit 10; the water source dynamic energy provided by the water supply pipeline is converted into rotary power through the driving mechanism 20; the acid liquid and the fertilizer liquid are mixed into irrigation liquid according to the preset proportion through the driving mechanism 20 driving the mixing mechanism 30; the irrigation liquid is fine filtered and delivered to the drip irrigation mechanism through the processing mechanism 40; the processing mechanism 40 is driven by the driving mechanism 20 to perform backwashing operation.

[0038] The drip irrigation and fertilization method specifically comprises: the water supply pipeline is provided with water by the water inlet unit 10 for preliminary filtration and is introduced into the driving mechanism 20; the driving mechanism 20 converts the water flow energy into rotary power and outputs to the transmission shaft 21, and takes the mechanical quantity as a unified control parameter, and the driving mechanism 20 delivers water to the mixing mechanism 30; the time sequence control component 31 drives the first plunger pump core 312 and the second plunger pump core 314 to work in a preset order according to a preset proportion, the mixing component 32 dilutes and mixes the acid liquid and the fertilizer liquid to generate irrigation liquid with stable concentration. The mixing mechanism 30 delivers the irrigation liquid to the processing mechanism 40, the processing mechanism 40 filters the irrigation liquid and delivers the irrigation liquid to the drip irrigation mechanism, and the drip irrigation mechanism delivers the irrigation liquid to the irrigation field. The intermittent motion component 42 is driven to move by the transmission shaft 21, the intermittent motion component 42 intermittently drives the reversing component 41 to reverse, the filtering component 43 stops the filtering operation and performs the backwashing operation after the reversing component 41 reverses, and the filtering operation is continued after the reversing component 41 resets.

[0039] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high efficiency fertilization drip fertigation device characterized by, The utility model relates to an irrigation liquid preparation and irrigation device, which comprises: a cabinet arranged in an irrigation field; a water inlet unit (10) arranged in the cabinet and connected with a water supply pipeline to receive water supply and filter water source; a driving mechanism (20) arranged in the cabinet and communicated with the water inlet unit (10) to convert water flow provided by the water supply pipeline into rotary power; a mixing mechanism (30) arranged in the cabinet and connected with the driving mechanism (20) to mix acid liquid and fertilizer liquid into irrigation liquid in a preset proportion under the driving of the driving mechanism (20); a treatment mechanism (40) arranged in the cabinet and connected with the driving mechanism (20) and the mixing mechanism (30), the treatment mechanism (40) being used for filtering irrigation liquid mixed by the mixing mechanism (30) and performing backwashing operation; a drip irrigation mechanism connected with the treatment mechanism (40) to irrigate the irrigation field with the filtered irrigation liquid of the treatment mechanism (40) through drip irrigation; wherein the driving mechanism (20) comprises a transmission shaft (21), and the driving mechanism (20) is further used for controlling the mixing proportion of the mixing mechanism (30) and the backwashing operation of the treatment mechanism (40) through the transmission shaft (21) and according to the water supply flow of the water supply pipeline; the treatment mechanism (40) comprises: a reversing component (41) having a first end connected with the mixing mechanism (30); a filtering component (43) having a liquid inlet connected with the reversing component (41), the filtering component (43) being used for filtering irrigation liquid and delivering the irrigation liquid to the drip irrigation mechanism; an intermittent motion component (42) arranged on the transmission shaft (21) and connected with the reversing component (41), the intermittent motion component (42) being used for driving the reversing component (41) to switch liquid flow direction to enable the filtering component (43) to perform backwashing operation; the reversing component (41) comprises: a three-way ball valve (411) having a first opening connected with the mixing mechanism (30), a second opening connected with the liquid inlet of the filtering component (43), and a third opening used for discharging sewage; a first rotating shaft (412) connected with a valve stem of the three-way ball valve (411); a first gear (413) arranged on the first rotating shaft (412) and connected with the intermittent motion component (42); a torsional spring (414) arranged on the first rotating shaft (412); The intermittent motion component (42) drives the three-way ball valve (411) to reverse direction through the first gear (413) and the first rotating shaft (412) to make the filtering component (43) perform backwashing operation, and the torsional spring (414) is used to drive the three-way ball valve (411) to reset; The filtering component (43) comprises: A filter cylinder (431) connected with the reversing component (41) at a liquid inlet and connected with the drip irrigation mechanism at a liquid outlet; A filter screen (432) arranged in the filter cylinder (431) and connected with the liquid inlet of the filter cylinder (431); A liquid storage cylinder (433) arranged in the filter cylinder (431) and connected with the filter cylinder (431) to provide flushing liquid in the backwashing operation; The intermittent motion component (42) comprises: A gear shift gear set (421) connected with the transmission shaft (21); A second transmission shaft (422) connected with the gear shift gear set (421); An incomplete gear assembly (423) arranged on the second transmission shaft (422) and engaged with the first gear (413), the transmission shaft (21) drives the incomplete gear assembly (423) to rotate through the gear shift gear set (421) and the second transmission shaft (422), and the incomplete gear assembly (423) is used to drive the three-way ball valve (411) to intermittently reverse direction.

2. The high efficiency fertilizing drip irrigation fertilizing device, according to claim 1, characterized in that, The mixing mechanism (30) comprises: A timing control component (31) arranged on the transmission shaft (21) to operate under the drive of the transmission shaft (21); A mixing component (32) connected with the drive mechanism (20) and the timing control component (31) to receive water flow from the drive mechanism (20), and the timing control component (31) is used to proportionally control the mixing ratio of acid liquid and fertilizer liquid of the mixing component (32) according to the flow of the water supply.

3. A high efficiency fertilizing drip irrigation fertilizing device according to claim 2 characterized in that, The timing control component (31) comprises: A first cam (311) arranged on the transmission shaft (21); A first plunger pump core (312) arranged in a case and abutting against the first cam (311), and the first cam (311) is used to drive the first plunger pump core (312) to move to inject the acid liquid into the mixing component (32); A second cam (313) arranged on the transmission shaft (21); A second plunger pump core (314) arranged in the case and abutting against the second cam (313), and the second cam (313) is used to drive the second plunger pump core (314) to move to inject the fertilizer liquid into the mixing component (32); The first cam (311) and the second cam (313) have non-overlapping phases to make the fertilizer liquid and the acid liquid enter the mixing component (32) in a preset sequence.

4. The high efficiency fertilizing drip irrigation device, according to claim 3, characterized in that, The mixing component (32) comprises: a first injection gun (321) connected with the liquid outlet of the first plunger pump core (312) through a pipeline; a first static mixer (322) connected with the driving mechanism (20) to receive water flow from the driving mechanism (20), and connected with the first injection gun (321) to mix the acid liquid and water; a second injection gun (323) connected with the liquid outlet of the second plunger pump core (314) through a pipeline; a second static mixer (324) connected with the first static mixer (322) through a pipeline, and used to mix the diluted acid liquid and the fertilizer liquid.

5. A high efficiency fertilizing drip irrigation device according to claim 4, characterized in that, The mixing component (32) further comprises a water hammer eliminator (327) used to eliminate water hammer and surge phenomenon in the mixing component (32).

6. A method of drip fertigation, characterised in that, The drip irrigation and fertilization method is applied to the high-efficiency drip irrigation and fertilization device as claimed in any one of claims 1 to 5, and comprises the following steps: preliminarily filtering water source provided by a water supply pipeline through a water inlet unit (10); converting kinetic energy of the water source provided by the water supply pipeline into rotary power through a driving mechanism (20); mixing the acid liquid and the fertilizer liquid into irrigation liquid in a preset proportion through the driving mechanism (20) driving a mixing mechanism (30); precisely filtering the irrigation liquid through a treatment mechanism (40) and delivering the irrigation liquid to a drip irrigation mechanism; performing backwashing operation through the driving mechanism (20) driving the treatment mechanism (40).

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