Efficiently-flushed vortex cavity self-flushing infiltrating irrigation emitter

Abstract

The utility model discloses an efficient flushing vortex cavity self-flushing infiltrating irrigation emitter which comprises a porous water seepage body, the top of the porous water seepage body is fixedly connected with an upper top cover, a water seepage cavity is formed in the porous water seepage body, the upper top cover is provided with a water inlet, the bottom of the porous water seepage body is fixedly connected with a bottom cylinder, and a conical body is arranged in the water seepage cavity. A telescopic drainage barrel is arranged in the bottom barrel, the bottom of the telescopic drainage barrel is fixedly connected with a springback device, the conical body is located above the telescopic drainage barrel and fixedly connected with the telescopic drainage barrel, the springback device is arranged between the bottom of the telescopic drainage barrel and the bottom of the bottom barrel, and a water outlet is formed in the bottom of the bottom barrel; the infiltrating irrigation emitter solves the problem that an existing infiltrating irrigation emitter is prone to being blocked.

Description

Technical Field

[0001] This utility model relates to the field of agricultural irrigation equipment technology, and in particular to a high-efficiency flushing vortex self-flushing seepage irrigation emitter. Background Technology

[0002] Existing drip irrigation emitters face significant challenges in practical application: silt, organic matter, and microorganisms in irrigation water easily accumulate in the porous seepage body, leading to pore blockage, a sharp drop in seepage efficiency, and even functional failure. Although some products attempt to alleviate blockage through backwashing or the addition of filtration devices, these rely on manual operation or external power, making them unsuitable for the decentralized, low-cost farmland scenarios in my country's resource-scarce water-rich regions. To address these issues, there is an urgent need to develop a drip irrigation emitter with high-efficiency self-washing capabilities, resistance to biofouling, and low cost. Through structural and material innovation, this emitter should meet the dual demands of water conservation, efficiency improvement, and green transformation in agriculture. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a high-efficiency flushing vortex self-flushing seepage irrigation emitter, solving the problem of easy clogging of existing seepage irrigation emitters.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-efficiency flushing vortex self-flushing seepage irrigation device, including a porous seepage body, the top of the porous seepage body is fixedly connected to an upper cover, a seepage cavity is opened inside the porous seepage body, an inlet is provided on the upper cover, the bottom of the porous seepage body is fixedly connected to a bottom cylinder, a cone is arranged inside the seepage cavity, a telescopic drainage cylinder is arranged inside the bottom cylinder, a rebound device is connected to the bottom of the telescopic drainage cylinder, the cone is fixedly connected above the telescopic drainage cylinder, a rebound device is provided between the bottom of the telescopic drainage cylinder and the bottom of the bottom cylinder, and an outlet is arranged at the bottom of the bottom cylinder.

[0005] Preferably, the cone is narrower at the top and wider at the bottom, with a hemispherical top and an annular curved edge at the bottom.

[0006] Preferably, an annular base is arranged below the curved edge of the annular arc surface, and a water outlet hole is provided on the side of the annular base.

[0007] Preferably, a plurality of spiral guide grooves are evenly arranged along the circumferential direction on the outer wall of the conical body.

[0008] Preferably, the annular arc-shaped curved edge is uniformly arranged with several diversion columns along the circumferential direction.

[0009] Preferably, the telescopic drainage cylinder includes multiple telescopic panels that slide in conjunction with the outer sleeve, with the top of the telescopic panels connected to an elastic body and the bottom fixedly connected to a circular sealing plate.

[0010] Preferably, the rebound device includes a rebound spring, the top of which is connected to the bottom of the telescopic drainage cylinder, and the bottom of which is connected to the bottom of the bottom cylinder.

[0011] Preferably, the rebound spring is further provided with a limiting cylinder and a limiting rod that slides with the limiting cylinder. The top of the limiting cylinder is connected to the bottom of the telescopic drainage cylinder, and the bottom of the limiting rod is connected to the bottom of the bottom cylinder.

[0012] Preferably, the top cover, bottom cylinder, conical body, and telescopic drainage cylinder are all made of polyethylene.

[0013] Preferably, the top of the porous permeable body is sealed to the top cover with hot melt adhesive, the bottom of the porous permeable body is sealed to the top of the bottom cylinder with hot melt adhesive, the bottom of the conical body is sealed to the top of the telescopic drainage cylinder with hot melt adhesive, and the outer wall of the telescopic drainage cylinder is sealed to the inner wall of the bottom cylinder with hot melt adhesive.

[0014] The beneficial effects of this utility model are:

[0015] 1. High-efficiency self-flushing and anti-clogging performance: This invention significantly improves flushing efficiency through a conical vortex structure design combined with a spiral guide channel, diversion column, and telescopic drainage cylinder linkage mechanism. During flushing, the water flow forms an upward vortex and a downward high-speed water flow under the action of the raised edge, achieving full coverage flushing of the porous seepage body wall, effectively removing deep silt and biofilm, and improving the clogging removal rate by more than 40% compared to traditional water emitters. At the same time, the telescopic drainage cylinder automatically opens the flushing channel under pressure triggering, requiring no external power or manual intervention, reducing operation and maintenance costs by 60%-70%.

[0016] 2. The porous permeable body in this utility model uses silt, slag and other solid waste as the main raw materials (accounting for 70%-80%), combined with the silica sol low-temperature sintering process, which reduces the cost by more than 50% compared with traditional ceramic materials, and increases the compressive strength to more than 15MPa, meeting the needs of complex field environments.

[0017] 3. Automatic Reset Function: This invention achieves seamless switching between flushing and irrigation modes through the linkage design of the rebound device and the telescopic drainage cylinder. After flushing, the rebound device uses elastic potential energy to drive the circular sealing plate to quickly reset, precisely sealing the water outlet channel at the bottom of the outer sleeve, ensuring that the irrigation device immediately returns to normal working condition. This mechanism requires no manual intervention or external power, and the flushing-reset response time is less than 2 seconds, significantly improving the system's automation level and reducing maintenance costs by more than 60%.

[0018] 4. Structural Optimization and Long-Term Stability: The telescopic drainage cylinder and rebound device are made of polyethylene and sealed with hot melt adhesive, ensuring rapid switching between flushing and filling modes. The seal life exceeds 50,000 pressure cycles, and the leakage rate is less than 0.5%. The spiral guide channel and diversion column optimize the water flow path, increasing the turbulence intensity of the flushing water flow by 30%-50% and improving the sediment carrying capacity by more than 2 times. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of a high-efficiency vortex self-flushing drip irrigation emitter;

[0020] Figure 2 for Figure 1 A schematic diagram of the decomposed structure;

[0021] Figure 3 A schematic diagram of the conical body and the telescopic drainage cylinder;

[0022] Figure 4 A schematic diagram of a half-section of the springback device;

[0023] Figure 5 for Figure 1 A schematic diagram of a half-section structure;

[0024] Figure 6 A schematic diagram showing the working status of the emitter under irrigation and flushing conditions;

[0025] Figure 7 This is a diagram showing the internal water flow characteristics of an emitter under irrigation conditions.

[0026] Figure 8 This diagram shows the flow characteristics of water inside the water dispenser during flushing. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Example 1: As Figure 1-5 As shown in the figure, this embodiment discloses a high-efficiency flushing vortex self-flushing seepage irrigation device, including a porous seepage body 1. The top of the porous seepage body 1 is fixedly connected to the top cover 2. A seepage cavity 3 is opened inside the porous seepage body 1. The top cover 2 is provided with a water inlet 4. The bottom of the porous seepage body 1 is fixedly connected to the bottom cylinder 5. A cone-shaped body 6 is arranged inside the seepage cavity 3. A telescopic drainage cylinder 7 is arranged inside the bottom cylinder 5. The bottom of the telescopic drainage cylinder 7 is connected to a rebound device 8. The cone-shaped body 6 is fixedly connected above the telescopic drainage cylinder 7. A rebound device 8 is provided between the bottom of the telescopic drainage cylinder 7 and the bottom of the bottom cylinder 5. A water outlet 51 is arranged at the bottom of the bottom cylinder 5.

[0029] Preferably, the raw materials for preparing the porous permeable body 1 are as follows by mass parts: 20-40 parts of silt, 30-50 parts of slag, 10-20 parts of silica sol, and 10-20 parts of pore-forming agent.

[0030] Preferably, the cone 6 is narrower at the top and wider at the bottom, the top of the cone 6 is hemispherical, and the bottom of the cone 6 is provided with an annular curved edge 61.

[0031] Preferably, an annular base 62 is arranged below the annular curved edge 61, and a water outlet 63 is provided on the side of the annular base 62.

[0032] Preferably, a plurality of spiral guide grooves 64 are evenly arranged on the outer wall of the cone-shaped body 6 along the circumferential direction.

[0033] Preferably, the annular curved edge 61 is provided with a plurality of diversion columns 65 evenly arranged along the circumferential direction.

[0034] More preferably, the spiral guide groove 64 has a depth of 3mm, a width of 5mm, and a spiral angle of 20°. The diverter column 65 has a height of 5mm and a diameter of 3mm. The top of the diverter column 65 is arc-shaped, and the side of the diverter column 65 is inclined. The angle between the inclined surface and the annular base 62 is 60°. The bottom of the diverter column 65 and the annular base 62 are connected by an arc.

[0035] Preferably, the telescopic drainage cylinder 7 includes multiple telescopic panels 71 that slide in conjunction with the outer sleeve 73. The top of the telescopic panels 71 is connected to the elastic body 72, and the bottom is fixedly connected to the circular sealing plate 74.

[0036] Preferably, the rebound device 8 includes a rebound spring 81, the top of which is connected to the bottom of the telescopic drainage cylinder 7, and the bottom of which is connected to the bottom of the bottom cylinder 5.

[0037] Preferably, the rebound spring 81 further includes a limiting cylinder 82 and a limiting rod 83 that slides with the limiting cylinder 82. The top of the limiting cylinder 82 is connected to the bottom of the telescopic drainage cylinder 7, and the bottom of the limiting rod 83 is connected to the bottom of the bottom cylinder 5. The sliding engagement of the limiting cylinder 82 and the limiting rod 83 limits the compression and rebound processes of the rebound spring 81, preventing lateral deformation.

[0038] Preferably, the top cover 2, bottom cylinder 5, conical body 6, and telescopic drainage cylinder 7 are all made of polyethylene.

[0039] Preferably, the top of the porous permeable body 1 is sealed to the top cover 2 by hot melt adhesive, the bottom of the porous permeable body 1 is sealed to the top of the bottom cylinder 5 by hot melt adhesive, the bottom of the conical body 6 is sealed to the top of the telescopic drainage cylinder 7 by hot melt adhesive, and the outer wall of the telescopic drainage cylinder 7 is sealed to the inner wall of the bottom cylinder 5 by hot melt adhesive.

[0040] Example 2: This example discloses a method for preparing the porous seepage body 1 of the above-mentioned high-efficiency flushing vortex self-flushing seepage irrigation emitter, which includes the following steps:

[0041] Step 1: Put the mixture of rice husks, peanut shells and sawdust into a crusher and crush it into granules. Then mix the raw materials evenly according to the existing formula ratio.

[0042] Step 2: Add silica sol and mix well. Let the mixture stand in a sealed container for a period of time.

[0043] Step 3: Load the aged mixture into the mold and dry press it into shape under a certain pressure;

[0044] Step 4: Place the green body into a drying oven and dry it for a period of time;

[0045] Step 5: Place the blank into a high-temperature furnace for firing to obtain a porous permeable body for the water dispenser.

[0046] A method for preparing a porous infiltrator 1 for a high-efficiency flushing vortex self-flushing seepage irrigation emitter and its preparation method is characterized by the following steps:

[0047] Step 1: Put the mixture of rice husks, peanut shells and sawdust into a crusher and crush it into granules. Then, pass it through a 100-mesh sieve. Mix the three raw materials in the following mass proportions: 35 parts silt, 35 parts slag, and 15 parts pore-forming agent.

[0048] Step 2: Add silica sol solution at 15% of the total weight of the raw material formula, mix and stir evenly, and let the mixture stand in a sealed container for 24 hours;

[0049] Step 3: Load the aged mixture into the mold and dry press it under a pressure of 12MPa;

[0050] Step 4: Place the green body into a drying oven for drying at 90℃ for 60 minutes.

[0051] Step 5: Place the blank in a high-temperature furnace for firing at a heating rate of 5℃ / min, with a test firing temperature of 800℃ and a holding time of 60~90min to obtain a porous permeable body for the water dispenser.

[0052] Example 3: This example discloses the method of using the above-mentioned high-efficiency flushing vortex self-flushing seepage irrigation emitter, which includes the following steps:

[0053] S1: When the drip irrigation emitter is in normal irrigation mode, the water flows from the inlet 4 into the seepage chamber 3 of the porous seepage body 1. In irrigation mode, the water pressure in the seepage chamber 3 is insufficient to push the circular sealing plate 74 out of the outer sleeve 73. At this time, the bottom of the outer sleeve 73 is blocked by the circular sealing plate 74 and becomes closed. The water in the seepage chamber 3 seeps out from the micropores of the porous seepage body 1 under pressure.

[0054] S2: As the number of irrigations increases, impurity particles in the water source will remain in the seepage cavity 3, and as the usage time increases, they will gradually block the micropores of the porous seepage body 1.

[0055] S3: When the porous infiltration body 1 is blocked, causing a significant decrease in flow rate, the pressure in the infiltration chamber 3 is increased by increasing the pressure at the head of the irrigation system. When the pressure in the infiltration chamber 3 reaches the rated pressure for flushing the emitter, the emitter enters the flushing mode. At this time, the water flow will push the circular sealing plate 74 open from the outer sleeve 73, and the telescopic enclosure 71 will move down, thus exposing the water outlet channel at the bottom of the outer sleeve 73. The water flow in the infiltration chamber 3 will pass through the water outlet 63 on the side of the annular base 62 and the water outlet channel at the bottom of the outer sleeve 73 in sequence, and enter the bottom cylinder 5, and finally be discharged from the water outlet 51 at the bottom of the bottom cylinder 5.

[0056] S5: As water flows out from outlet 51, the flow rate at inlet 4 increases instantaneously. The water flows into the top of cone 6 and along the spiral guide groove 64 on the outer wall of cone 6. Then, due to the annular curved edge 61 and diversion column 65 at the bottom of cone 6, the water flow is divided into two streams along the annular curved edge 61. One stream is lifted upward by the lifting effect of the curved edge and impacts the diversion column 65, forming a vortex to flush the inner wall of porous permeable body 1 and carrying mud and sand particles back to the annular curved edge 61. The downward flow of water from the annular curved edge 61 has a larger flow velocity and a stronger ability to carry mud and sand. It flows into outlet 63 through the gap between the annular base 6262 and the inner wall of porous permeable body 1, through the water outlet channel at the bottom of outer sleeve 73, and finally out from outlet 51 of bottom cylinder 5, achieving the purpose of automatic flushing.

[0057] S4: After the circular sealing plate 74 is pushed open from the outer tube 73, the rebound device 8 is squeezed. Under the action of the rebound device 8, the circular sealing plate 74 slowly rebounds and moves upward until the water outlet channel at the bottom of the outer tube 73 is closed by the circular sealing plate 74. At this time, the water emitter returns to the normal water irrigating mode.

[0058] S6: Regularly check the micropore blockage of the porous permeable body 1 and adjust the flushing frequency as needed to ensure the long-term stable operation of the water emitter.

[0059] Example 4: This example uses FLUENT numerical simulation to demonstrate the internal water flow characteristics of the irrigation system under flushing conditions. For example... Figures 7 to 8 As shown, when the drip irrigation emitter is in normal operating mode, water flows from the inlet 4 into the seepage chamber 3 of the porous seepage body 1. In this mode, the water pressure in the seepage chamber 3 is insufficient to force the circular sealing plate 74 open from the outer sleeve 73. At this time, the bottom of the outer sleeve 73 is blocked by the circular sealing plate 74, creating a closed state. Under pressure, the water in the seepage chamber 3 seeps out from the micropores of the porous seepage body 1. With increasing irrigation frequency, impurities in the water source will remain in the seepage chamber 3, and... As usage time increases, the micropores of the porous infiltrator 1 gradually become clogged. When the flow rate decreases significantly due to the blockage of the porous infiltrator 1, the pressure at the head of the irrigation system is increased, thereby increasing the pressure inside the infiltrator chamber 3. When the pressure inside the infiltrator chamber 3 reaches the rated flushing pressure of the emitter, the emitter enters the flushing mode. At this time, the water flow forces the circular sealing plate 74 open from the outer sleeve 73, and the telescopic enclosure 71 moves down, exposing the water outlet channel at the bottom of the outer sleeve 73. The water flow in the infiltrator chamber 3 then passes through the annular... The water flows through the outlet hole 63 on the side of the base 62 and the outlet channel at the bottom of the outer sleeve 73, entering the bottom cylinder 5 and finally exiting from the outlet 51 at the bottom of the bottom cylinder 5. Simultaneously with the water exiting from the outlet 51, the water flow rate at the inlet 4 increases instantaneously, impacting the top of the cone 6 and flowing along the spiral guide groove 64 on the outer wall of the cone 6. Then, due to the annular curved edge 61 and the diverting column 65 at the bottom of the cone 6, the water flow is divided into two streams along the annular curved edge 61. The water flow, propelled upwards by the raised edge, impacts the diversion column 65, forming a vortex that washes the inner wall of the porous permeable body 1 and carries sediment particles back to the annular raised edge 61. The water flowing downwards from the annular raised edge 61 has a higher velocity and a stronger sediment-carrying capacity. It flows along the gap between the annular base 6262 and the inner wall of the porous permeable body 1 into the outlet hole 63, passes through the water outlet channel at the bottom of the outer sleeve 73, and finally exits from the outlet 51 of the bottom cylinder 5, achieving the purpose of automatic flushing. After the circular sealing plate 74 is forced open from the outer sleeve 73, the rebound device 8 is compressed. Under the action of the rebound device 8, the circular sealing plate 74 slowly rebounds and moves upwards until the water outlet channel at the bottom of the outer sleeve 73 is closed by the circular sealing plate 74. At this time, the water emitter returns to the normal water filling mode, completing the automatic flushing.

[0060] As can be seen from the flow velocity distribution diagram inside the emitter cavity, the water flow is affected by the lifting effect of the annular curved edge 61 and the diversion effect of the diverting column 65. The water flow moves upward in a parabolic motion, impacting the inner wall of the porous seepage body 1 of the emitter. This is the part of the emitter that is prone to clogging. Then, a vortex is formed, carrying mud and sand particles back to the annular curved edge 61. The downward-moving water flow has a larger velocity and a stronger ability to carry mud and sand. It flows into the outlet hole 63 along the gap between the annular base 6262 and the inner wall of the porous seepage body 1, passes through the water outlet channel at the bottom of the outer sleeve 73, and finally exits from the outlet 51 of the bottom cylinder 5. As can be seen from the water flow streamline distribution inside the emitter cavity, the design of the conical structure enhances the turbulence of the water flow inside the emitter. The violent disturbance of the water flow and the vortex are conducive to cleaning the inner wall of the emitter and meet the anti-clogging requirements.

[0061] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A high-efficiency vortex self-flushing seepage irrigation device, comprising a porous seepage body (1), the top of which is fixedly connected to an upper cover (2), the porous seepage body (1) having a seepage cavity (3) inside, and the upper cover (2) having a water inlet (4), characterized in that: The bottom of the porous permeable body (1) is fixedly connected to the bottom cylinder (5). A cone (6) is arranged inside the permeable cavity (3). A telescopic drainage cylinder (7) is arranged inside the bottom cylinder (5). The bottom of the telescopic drainage cylinder (7) is connected to a rebound device (8). The cone (6) is fixedly connected above the telescopic drainage cylinder (7). A rebound device (8) is provided between the bottom of the telescopic drainage cylinder (7) and the bottom of the bottom cylinder (5). An outlet (51) is arranged at the bottom of the bottom cylinder (5).

2. A high efficiency flush vortex self-cleaning trickle irrigation emitter according to claim 1, characterized in that: The cone (6) is narrow at the top and wide at the bottom. The top of the cone (6) is hemispherical, and the bottom of the cone (6) is provided with an annular curved edge (61).

3. A high efficiency flush vortex self-cleaning trickle irrigation emitter according to claim 2, characterized in that: Below the annular curved edge (61), an annular base (62) is arranged, and a water outlet hole (63) is opened on the side of the annular base (62).

4. A high efficiency flush vortex self-cleansing trickle irrigation emitter according to claim 2, wherein: The outer wall of the cone (6) is uniformly arranged with several spiral guide grooves (64) along the circumferential direction.

5. A high efficiency flush vortex self-cleansing trickle irrigation emitter according to claim 2, wherein: The annular curved edge (61) has several diversion columns (65) evenly arranged along the circumference.

6. A high efficiency flush vortex self-cleansing trickle irrigation emitter according to claim 1, wherein: The telescopic drainage cylinder (7) includes multiple telescopic panels (71) that slide with the outer sleeve (73). The top of the telescopic panels (71) is connected to the elastic body (72), and the bottom is fixedly connected to the circular sealing plate (74).

7. A high efficiency flush vortex self-cleansing trickle irrigation emitter according to claim 1, wherein: The rebound device (8) includes a rebound spring (81), the top of which is connected to the bottom of the telescopic drainage cylinder (7), and the bottom of which is connected to the bottom of the bottom cylinder (5).

8. A high efficiency flush vortex self-cleansing trickle irrigation emitter according to claim 7, wherein: The rebound spring (81) is also provided with a limiting cylinder (82) and a limiting rod (83) that slides with the limiting cylinder (82). The top of the limiting cylinder (82) is connected to the bottom of the telescopic drainage cylinder (7), and the bottom of the limiting rod (83) is connected to the bottom of the bottom cylinder (5).

9. The high-efficiency flushing vortex self-flushing seepage irrigation emitter according to claim 1, characterized in that: The top cover (2), bottom cylinder (5), cone (6) and telescopic drainage cylinder (7) are all made of polyethylene.

10. A high efficiency flush vortex self-cleansing trickle irrigation emitter according to claim 9, wherein: The top of the porous permeable body (1) is sealed to the top cover (2) by hot melt adhesive. The bottom of the porous permeable body (1) is sealed to the top of the bottom cylinder (5) by hot melt adhesive. The bottom of the cone-shaped body (6) is sealed to the top of the telescopic drainage cylinder (7) by hot melt adhesive. The outer wall of the telescopic drainage cylinder (7) is sealed to the inner wall of the bottom cylinder (5) by hot melt adhesive.

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