Self-cleaning irrigation emitter and method

Abstract

The application discloses a self-flushing irrigation device and method, which comprises an irrigation device body and a rotation control device. An energy dissipation flow channel is arranged in the irrigation device body, and the rotation control device is connected with the irrigation device body. When a pressurized water flow enters the flow channel unit through the water inlet groove of the application, the water flow in the flow channel unit is divided into two streams by a water blocking member, and then enters the next flow channel unit, so that vortex is generated in the flow channel unit, water flow energy is consumed, water power performance is improved, and water flow velocity is reduced. External wind makes the outer fan rotate, thereby driving the inner fan to rotate, and air flow is generated in the water blocking member. Since the water blocking member is made of air-permeable and water-impermeable material, the air flow can pass through the water blocking member to generate turbulence of the flow channel blocking particles, flush the flow channel, and make the particles flow out with the water flow, so that the probability of the particles remaining in the flow channel is reduced.

Description

Technical Field

[0001] This invention belongs to the field of irrigation device technology, and particularly relates to a self-flushing irrigation device and method. Background Technology

[0002] Irrigation devices utilize a pressure system to deliver water and necessary nutrients to the soil surface or root zone of plants and crops in a uniform and accurate manner through a distribution pipeline system, according to the crop's water requirements. This maintains the soil around the crop roots in an optimal state of water, fertilizer, and air. With repeated irrigation, impurities in the water source can become trapped in the energy dissipation channels, causing blockages. Clearing these blockages requires significant manpower; therefore, a self-cleaning irrigation device is needed to remove these blockages.

[0003] Patent document CN105706854A discloses an anti-clogging water emitter based on a curved cross-section double-circulation phenomenon, featuring an anti-clogging labyrinth flow channel with an inlet and outlet. This anti-clogging labyrinth flow channel comprises several identical flow channel units, each consisting of four interconnected parts: a straight transition section, a wide bend section, a gradually narrowing arc section, and a narrow bend section. This patent utilizes the cross-sectional double-circulation phenomenon formed by two consecutive opposite 90-degree turns to increase turbulence and create a high-speed region. The double-circulation flow in the arc transition zone forms a double-helix forward flow with the main flow direction of the channel, scouring the channel walls and preventing clogging over long-term use. However, while this patent achieves anti-clogging through the flow channel structure, it lacks a structure specifically designed to address clogging by large impurities.

[0004] Patent document CN117502188A discloses an externally mounted pressurized variable-channel self-flushing water emitter and its application method. The emitter includes a module box with a top cover. Inside the module box is a pressurized, downward-moving auxiliary water-blocking component. The top of the top cover has a pressurizing device that cooperates with the auxiliary water-blocking component. The bottom of the module box has a labyrinth flow channel plate. When the auxiliary water-blocking component moves downward, it cooperates with the labyrinth flow channel of the labyrinth flow channel plate. The bottom of the labyrinth flow channel plate has a bottom cover. One end of the labyrinth flow channel plate has a water inlet, and the other end has a water outlet. This patent uses a rotating pressurized column to flush and clear blockages within the flow channel; however, the operation of rotating the pressurized column requires manual intervention.

[0005] Patent document CN221863963U discloses a flushable gear-type pressure-compensated irrigation emitter, including an emitter cover, a flow channel top cover, a flow channel inner core, a pressure compensation block, a base, a matching flushing plug, and an eight-hole adjustable dripper. The inner and outer teeth of the flow channel form a gear-type labyrinth flow channel. Using the matching dripper, it is possible to switch between single-outlet water dispensing mode, flushing mode, and eight-hole water dispensing mode. This novel design utilizes a gear-type flow channel to simultaneously generate counter-current energy dissipation and vortex energy dissipation, resulting in significant energy dissipation. The pressure compensation block ensures stable flow; and the flow rate can be adjusted using the gear inner core, allowing for rapid adjustment of the water output as needed. This patent requires manual flushing with the flushing plug to restore irrigation function after blockage occurs, making it suitable for scenarios with effective management and the ability to promptly detect emitter blockages. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a self-flushing water dispenser and method.

[0007] The present invention is achieved through the following technical solutions.

[0008] The present invention provides a self-flushing irrigation device, comprising an irrigation device body and a rotation control device, wherein an energy dissipation flow channel is provided in the irrigation device body, and the rotation control device is connected to the irrigation device body.

[0009] Preferably, the energy dissipation channel comprises a number of channel units connected in series, the channel units are connected by connecting channels, and a water-blocking component is provided in the channel unit, the height of the channel unit being the same as the height of the water-blocking component.

[0010] Preferably, the flow channel unit is annular, the connecting channel is funnel-shaped, and the water inlet end of the connecting channel is the smaller end.

[0011] Preferably, the water-blocking component is a hollow cylinder, with a slot at the bottom and a groove inside the slot. The groove is annular and located on the inner wall of the slot.

[0012] Preferably, the material of the water-blocking component includes permeable membrane nanoporous ceramic or permeable membrane graphene.

[0013] Preferably, the rotation control device includes an outer fan, an inner fan, a connecting column A, and a connecting column B. The outer fan is disposed on the connecting column A, the inner fan is disposed on the connecting column B, one end of the connecting column A passes through one side of the water emitter body and is connected to the connecting column B, and the connecting column B is disposed in the energy dissipation channel.

[0014] Preferably, a slider is provided on the connecting column A, a groove A is provided on the connecting column B, and a groove B is provided on the groove A. The connecting column A is slidably connected by inserting into the connecting column B through the groove A, and the slider is slidably connected by inserting into the groove B.

[0015] Preferably, a rotating anti-slip ring is provided on the side of the connecting post B away from the connecting post A.

[0016] Preferably, a cover plate is provided on the top of the water emitter body, and a through hole is provided on the cover plate. The rotation control device passes through the through hole through the cover plate. A water inlet groove is provided on one side of the water emitter body, and a water outlet groove is provided on the other side of the water emitter body. The water outlet end of the water inlet groove is connected to the water inlet end of the energy dissipation channel, and the water inlet end of the water outlet groove is connected to the water outlet end of the energy dissipation channel. A grid component is provided in the water inlet groove.

[0017] A method for using a self-flushing water dispenser includes the following steps:

[0018] S1: Install the water emitter body, install the inner fan onto the connecting post B, and then insert the connecting post B into the water-blocking component for connection.

[0019] S2: Install the grid components inside the water inlet trough, then install the cover plate onto the water dispenser body, and install the outer fan onto the connecting post A, so that connecting post A passes through the cover plate and connects to connecting post B, completing the installation.

[0020] S3: When the wind picks up, the wind drives the outer fan to rotate, and through connecting column A and connecting column B, it drives the inner fan to rotate, which in turn generates airflow in the water baffle. The airflow passes through the water baffle and enters the energy dissipation channel, causing the internal blockage particles to move turbulently, so that the blockage particles flow out of the energy dissipation channel with the water flow, reducing the probability of particles remaining in the channel.

[0021] The beneficial effects of this invention are as follows:

[0022] When pressurized water flows into the flow channel unit through the inlet trough of this invention, the water flow within the flow channel unit is divided into two streams by the water-blocking component before entering the next flow channel unit. A vortex is generated within the flow channel unit, consuming water flow energy, improving hydraulic performance, and reducing water flow velocity. As water flows through the energy-dissipating channel, a vortex is generated. With increasing irrigation frequency, impurities in the water source become trapped in the energy-dissipating channel, causing blockage. External wind causes the outer fan to rotate, which in turn drives the inner fan to rotate, generating airflow within the water-blocking component. Because the water-blocking component is made of a breathable but waterproof material, the airflow can pass through it, causing turbulence in the blockage particles. The flushing of the flow channel allows the particles to flow out with the water, reducing the probability of particles remaining in the channel. Compared to existing irrigation devices, this self-flushing irrigation device relies on wind power to drive the rotation control device, generating airflow within the flow channel. This airflow is converted into kinetic energy in the water, causing turbulence in the particles, which then flow out of the energy-dissipating channel with the water flow. This increases the irrigation device's anti-clogging capability. This invention uses wind power for blockage removal, reducing manual maintenance costs. Attached Figure Description

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

[0024] Figure 2 This is an exploded view of the present invention;

[0025] Figure 3 This is a schematic diagram of the energy dissipation channel of the present invention;

[0026] Figure 4 This is a schematic diagram of the energy dissipation channel of the present invention;

[0027] Figure 5 This is a schematic diagram of the flow channel unit of the present invention;

[0028] Figure 6 This is a schematic diagram of the rotation control device of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of connecting column A of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of connecting column B of the present invention;

[0031] Figure 9 This is a velocity vector distribution diagram of the energy dissipation channel of the present invention;

[0032] Figure 10 This is a velocity vector distribution diagram of the energy dissipation channel of the present invention;

[0033] Figure 11 This is a distribution diagram of particle motion trajectories within the energy dissipation channel of the present invention;

[0034] Figure 12 This is a pressure-flow rate curve of the energy dissipation channel of the present invention;

[0035] In the diagram: 1-Water emitter body, 2-Energy dissipation channel, 3-Rotation control device, 4-Water inlet tank, 5-Water outlet tank, 6-Flow channel unit, 61-Connecting channel, 7-Water baffle, 71-Slot, 8-Outer fan, 9-Inner fan, 10-Through hole, 11-Connecting post A, 12-Connecting post B, 13-Rotation anti-slip ring, 14-Groove, 16-Grid piece, 101-Sliding strip, 102-Sliding groove A, 103-Sliding groove B. Detailed Implementation

[0036] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0037] Example:

[0038] like Figures 1 to 12 As shown, a self-flushing irrigation device includes an irrigation device body 1 and a rotation control device 3. An energy dissipation channel 2 is provided inside the irrigation device body 1, and the rotation control device 3 is connected to the irrigation device body 1.

[0039] The energy dissipation channel 2 comprises several channel units 6 connected in series. The channel units 6 are connected by a connecting channel 61. A water-blocking component 7 is provided inside the channel unit 6. The height of the channel unit 6 is the same as the height of the water-blocking component 7, so that after the cover plate is installed, it can simultaneously fit the top of the channel unit 6 and the water-blocking component 7, thereby preventing water from entering the water-blocking component 7.

[0040] The flow channel unit 6 is annular, with an outer radius of 1.43 mm and an inner radius of 0.50 mm. The connecting channel 61 is funnel-shaped, with the water inlet end of the connecting channel 61 being the smaller end.

[0041] The water-blocking component 7 is a hollow cylinder, and a slot 71 is provided at the bottom of the water-blocking component 7. A groove 14 is provided inside the slot 71. The groove 14 is annular and is provided on the inner wall of the slot 71.

[0042] The water-blocking component 7 is made of permeable membrane nanoporous ceramic or permeable membrane graphene. In this embodiment, permeable membrane nanoporous ceramic is preferred. The water-blocking component 7 is an air-permeable but water-impermeable material, and airflow can pass through the water-blocking component 7 to enter the flow channel unit 6.

[0043] The rotation control device 3 can be configured in multiple units according to the length of the emitter body 1. The rotation control device 3 includes an outer fan 8, an inner fan 9, a connecting column A11, and a connecting column B12. The outer fan 8 is mounted on the connecting column A11, and the inner fan 9 is mounted on the connecting column B12. One end of the connecting column A11 passes through one side of the emitter body 1 and connects to the connecting column B12. The connecting column B12 is located within the water-blocking component 7 of the energy dissipation channel 2. The outer fan 8 is located outside the emitter body 1. Each connecting column A11 can have four outer fans 8 arranged in a cross shape, and each connecting column B12 can have four inner fans 9 arranged in a cross shape.

[0044] A slider 101 is provided on the connecting column A11, and a groove A102 and a groove B103 are provided on the connecting column B12. The connecting column A11 is slidably connected to the connecting column B12 by inserting into the groove A102, and the slider 101 is slidably connected by inserting into the groove B103. The slider 101 and the groove B103 prevent the connecting column A11 from rotating relative to the connecting column B12.

[0045] A rotating anti-slip ring 13 is provided on the side of the connecting post B12 away from the connecting post A11, and the rotating anti-slip ring 13 is placed in the groove 14. The rotating anti-slip ring 13 and the groove 14 ensure that the connecting post B12 does not wobble when rotating in the slot 71.

[0046] The top of the water emitter body 1 is provided with a cover plate, and the cover plate is provided with a through hole 10. The connecting column A11 of the rotation control device 3 passes through the cover plate through the through hole 10. A water inlet trough 4 is provided on one side of the water emitter body 1, and a water outlet trough 5 is provided on the other side of the water emitter body 1. The water outlet end of the water inlet trough 4 is connected to the water inlet end of the energy dissipation channel 2, and the water inlet end of the water outlet trough 5 is connected to the water outlet end of the energy dissipation channel 2. A grid member 16 is provided in the water inlet trough 4 to prevent large-volume debris from entering the energy dissipation channel 2.

[0047] A method for using a self-flushing water dispenser includes the following steps:

[0048] S1: Install the watering device body 1. The installation position of the watering device body 1 is set according to the planting situation. Install the inner fan 9 onto the connecting post B12, and then insert the connecting post B12 into the water-blocking part 7 for connection.

[0049] S2: Install the grid component 16 inside the water inlet trough 4, then install the cover plate onto the water dispenser body 1, and install the outer fan 8 onto the connecting post A11, so that the connecting post A11 passes through the cover plate and connects with the connecting post B12, thus completing the installation.

[0050] S3: When the wind picks up, the wind drives the outer fan 8 to rotate, and through the connecting column A11 and connecting column B12, it drives the inner fan 9 to rotate, which in turn generates airflow in the water baffle 7. The airflow passes through the water baffle 7 and enters the energy dissipation channel 2, causing the internal blockage particles to move turbulently, so that the blockage particles flow out of the energy dissipation channel 2 with the water flow, reducing the probability of particles being stuck in the channel.

[0051] The CFD simulation method was used to numerically simulate the fluid velocity vector in the energy dissipation channel of the irrigation device. The simulation results are as follows: Figure 9 , 10 As shown in the diagram, after the water flows into the energy dissipation channel from the inlet, it is divided into two streams by the water-blocking components. Under the influence of the annular channel, the direction of the water flow constantly changes, forming upper and lower vortices in the front half of the channel unit. Under the action of these vortices, the water flow continuously collides and turbulents, consuming energy and reducing its velocity.

[0052] The CFD simulation method was used to numerically simulate the motion trajectory of fluid particles in the energy dissipation channel of the water emitter. The particle size was set to 0.1 mm. The simulation results are as follows: Figure 11 As shown in the figure, sand particles are carried rapidly through the energy dissipation channel by the water flow. After passing the water-blocking component, the sand particles directly enter the next unit channel without any stagnation or dead zones. Therefore, the present invention has good anti-clogging performance.

[0053] In this embodiment, the pressure-flow rate relationship curve of the energy dissipation channel 2 was obtained through numerical simulation, as shown in the figure. Figure 12As shown in the figure, the horizontal axis represents the inlet water pressure (m), and the vertical axis represents the average flow rate (L / h). (Reference) Figure 12 The flow index of energy dissipation channel 2 is 0.4784, indicating good hydraulic performance. When the working pressure of the water emitter is 2~10m, the flow rate ranges from 4.3556~9.2976L / h.

Claims

1. A self-flushing water dispenser, characterized in that: It includes an irrigation device body (1) and a rotation control device (3). An energy dissipation channel (2) is provided inside the irrigation device body (1), and the rotation control device (3) is connected to the irrigation device body (1). The energy dissipation channel (2) comprises several channel units (6) connected in series. The channel units (6) are connected by a connecting channel (61). A water-blocking component (7) is provided inside the channel unit (6). The height of the channel unit (6) is the same as the height of the water-blocking component (7). The water-blocking component (7) is a hollow cylinder, and a slot (71) is provided at the bottom of the water-blocking component (7). A groove (14) is provided inside the slot (71). The groove (14) is annular and is provided on the inner wall of the slot (71). The water-blocking component (7) is made of permeable membrane nanoporous ceramic or permeable membrane graphene. The water-blocking component (7) is an air-permeable but water-impermeable material, and the airflow can pass through the water-blocking component (7) to enter the flow channel unit (6). The rotation control device (3) includes an outer fan (8), an inner fan (9), a connecting column A (11) and a connecting column B (12). The outer fan (8) is mounted on the connecting column A (11), and the inner fan (9) is mounted on the connecting column B (12). One end of the connecting column A (11) passes through one side of the water emitter body (1) and is connected to the connecting column B (12). The connecting column B (12) is mounted inside the energy dissipation channel (2). A method for using a self-flushing water dispenser includes the following steps: S1: Install the water emitter body (1), install the inner fan (9) onto the connecting post B (12), and then insert the connecting post B (12) into the water baffle (7) for connection. S2: Install a grid component (16) inside the water inlet trough (4), then install the cover plate onto the water dispenser body (1), and install the outer fan (8) onto the connecting post A (11), so that the connecting post A (11) passes through the cover plate and connects with the connecting post B (12) to complete the installation. S3: When the wind picks up, the wind drives the outer fan (8) to rotate, and drives the inner fan (9) to rotate through the connecting column A (11) and connecting column B (12), thereby generating airflow in the water baffle (7). The airflow passes through the water baffle (7) and enters the energy dissipation channel (2), causing the internal blockage particles to move turbulently, so that the blockage particles flow out of the energy dissipation channel (2) with the water flow, reducing the probability of particles being stuck in the channel.

2. The self-flushing water dispenser as described in claim 1, characterized in that: The flow channel unit (6) is circular, and the connecting channel (61) is horn-shaped with the water inlet end of the connecting channel (61) being the small end.

3. The self-flushing water dispenser as described in claim 1, characterized in that: A slider (101) is provided on the connecting column A (11), a groove A (102) is provided on the connecting column B (12), and a groove B (103) is provided on the groove A (102). The connecting column A (11) is slidably connected by inserting into the connecting column B (12) through the groove A (102), and the slider (101) is slidably connected by inserting into the groove B (103).

4. The self-flushing water dispenser as described in claim 1, characterized in that: A rotating anti-slip ring (13) is provided on the side of the connecting column B (12) away from the connecting column A (11).

5. A self-flushing water dispenser as described in claim 1, characterized in that: The top of the water irrigator body (1) is provided with a cover plate, and a through hole (10) is provided on the cover plate. The rotation control device (3) passes through the cover plate through the through hole (10). A water inlet trough (4) is provided on one side of the water irrigator body (1), and a water outlet trough (5) is provided on the other side of the water irrigator body (1). The water outlet end of the water inlet trough (4) is connected to the water inlet end of the energy dissipation channel (2), and the water inlet end of the water outlet trough (5) is connected to the water outlet end of the energy dissipation channel (2). A grid component (16) is provided inside the water inlet trough (4).

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