CN113499871B - Self-oscillation atomization nozzle for agricultural irrigation - Google Patents
Self-oscillation atomization nozzle for agricultural irrigation Download PDFInfo
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- CN113499871B CN113499871B CN202110856891.0A CN202110856891A CN113499871B CN 113499871 B CN113499871 B CN 113499871B CN 202110856891 A CN202110856891 A CN 202110856891A CN 113499871 B CN113499871 B CN 113499871B
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- 238000003973 irrigation Methods 0.000 title claims abstract description 39
- 230000002262 irrigation Effects 0.000 title claims abstract description 39
- 238000000889 atomisation Methods 0.000 title description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 230000010355 oscillation Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 9
- 239000007921 spray Substances 0.000 description 7
- 238000005507 spraying Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 4
- 238000012271 agricultural production Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003621 irrigation water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/08—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0483—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with gas and liquid jets intersecting in the mixing chamber
Abstract
The invention discloses a self-oscillation atomizing nozzle for agricultural irrigation, which relates to the technical field of agricultural irrigation and comprises a first nozzle, a second nozzle, an atomizing nozzle and a water nozzle which are sequentially arranged from bottom to top, wherein a connecting cavity, a conical cavity, a first thin tube cavity and a mounting groove are sequentially arranged in the first nozzle from bottom to top, the second nozzle is arranged in the mounting groove, an oscillating cavity is formed between the bottom surface of the second nozzle and the first nozzle, the atomizing nozzle comprises a first circular tube, a conical tube and a second circular tube which are sequentially connected from bottom to top, the first circular tube is sleeved at the upper end of the outer part of the second nozzle, atomizing holes are formed in the upper part of the side wall of the first circular tube, the atomizing cavity is formed between the top surfaces of the first circular tube and the second nozzle, the water nozzle comprises a third circular tube and a top plate arranged at the top of the third circular tube, the third circular tube is sleeved at the outer part of the second circular tube, and a plurality of water nozzles are arranged on the upper part of the side wall of the third circular tube along the circumferential direction. This shower nozzle has improved the atomizing effect, and effective water economy uses water, has promoted irrigation efficiency.
Description
Technical Field
The invention relates to the technical field of agricultural irrigation, in particular to a self-oscillation atomization nozzle for agricultural irrigation.
Background
Agricultural irrigation mainly refers to irrigation operation performed on agricultural cultivation areas. Agricultural irrigation methods can be generally divided into traditional ground irrigation, general sprinkler irrigation and micro irrigation. Under advocating the big background of saving type production, traditional ground irrigation technique will progressively withdraw from agricultural production's ranks, and the sprinkling irrigation utilizes professional equipment such as shower nozzle to spray the water after the pressurization aerial, forms the irrigation mode that water drippage fell ground and crop surface, however current shower nozzle exists the water consumption many, the atomization effect is poor and irrigation efficiency hangs down the problem.
Disclosure of Invention
In order to solve the technical problems, the invention provides the self-oscillation atomizing nozzle for agricultural irrigation, which improves the atomizing effect, effectively saves water consumption and improves the irrigation efficiency.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a self-oscillation atomizing nozzle for agricultural irrigation, which comprises a first nozzle, a second nozzle, an atomizing nozzle and a water nozzle, wherein the first nozzle, the second nozzle, the atomizing nozzle and the water nozzle are sequentially arranged from bottom to top, a connecting cavity, a conical cavity, a first thin tube cavity and a mounting groove are sequentially arranged in the first nozzle from bottom to top, the second nozzle is mounted in the mounting groove, an oscillating cavity is formed between the bottom surface of the second nozzle and the first nozzle, a second thin tube cavity is arranged in the second nozzle, two ends of the oscillating cavity are respectively communicated with the first thin tube cavity and the second thin tube cavity, the atomizing nozzle comprises a first circular tube, a conical tube and a second circular tube which are sequentially connected from bottom to top, the inner diameter of the first circular tube is larger than that of the second circular tube, a first sleeve circular tube is mounted at the upper end of the outer part of the second nozzle, atomizing holes are formed in the upper part of the side wall of the first circular tube and used for introducing gas, an atomizing cavity is formed between the first circular tube and the top surface of the second nozzle, the upper end of the second thin tube is communicated with the atomizing cavity, the water nozzle comprises a third circular tube, and a plurality of water nozzle sleeves are arranged along the top wall of the third circular tube.
Preferably, the lower surface of the top plate is an inverted conical surface.
Preferably, the water spray holes are fan-shaped holes, and the fan-shaped holes extend along the circumferential direction of the third circular pipe.
Preferably, the fan-shaped holes are three, the three fan-shaped holes are respectively a first fan-shaped hole, a second fan-shaped hole and a third fan-shaped hole, an included angle between a midpoint of the first fan-shaped hole and a horizontal connecting line of a central axis of the third round pipe and a midpoint of the second fan-shaped hole and a horizontal connecting line of a central axis of the third round pipe is 90 degrees, and an included angle between a midpoint of the third fan-shaped hole and a horizontal connecting line of a central axis of the third round pipe and a midpoint of the second fan-shaped hole and a horizontal connecting line of a central axis of the third round pipe is 90 degrees.
Preferably, the mounting groove includes first circular slot and the second circular slot that sets gradually by lower supreme, the internal diameter of second circular slot is greater than the internal diameter of first circular slot, second nozzle threaded mounting in the second circular slot, just the lower extreme of second nozzle extends to in the first circular slot.
Preferably, the second nozzle comprises a first cylinder, a second cylinder, a third cylinder and a fourth cylinder which are sequentially connected from bottom to top, the outer diameters of the second cylinder, the first cylinder, the third cylinder and the fourth cylinder are sequentially reduced, the second cylinder is installed in the second circular groove in a threaded mode, the first cylinder is matched with the first circular groove in structure, and the fourth cylinder is sleeved with the first circular pipe in a threaded mode.
Preferably, the third circular tube is sleeved outside the second circular tube in a threaded manner.
Preferably, the atomization hole is a threaded hole, and the threaded hole is used for being connected with an air supply pipe through an external thread valve seat.
Preferably, the first thin lumen has an inner diameter d 1 The inner diameter of the second thin tube cavity is d 2 The inner diameter of the second round tube is d 3 ，
λ≤1。
Compared with the prior art, the invention achieves the following technical effects:
the invention provides a self-oscillation atomizing nozzle for agricultural irrigation, which comprises a first nozzle, a second nozzle, an atomizing nozzle and a water spray nozzle which are sequentially arranged from bottom to top, wherein irrigation water flow is injected into an oscillation cavity through the first nozzle, water flow forms a discrete vortex ring in the first nozzle, a vortex disturbance-amplification-vortex pulsation generation circulation process is formed by collision in a conical cavity and the oscillation cavity, the process is continuously and circularly repeated, strong self-oscillation pulse jet is formed, a cavitation phenomenon is induced, and the atomizing effect is effectively improved. Then enters an atomizing nozzle with an atomizing hole, the atomizing hole is used for introducing gas, and the gas is fully combined with the self-oscillation pulse jet flow from the second nozzle to achieve the atomizing effect. Finally, the water is sprayed to the agricultural land through a plurality of water spraying holes of the water spraying nozzle. Compared with continuous jet flow, the pulse jet flow has the characteristics of low energy consumption, good atomization and the like, the first nozzle capable of generating the pulse jet flow and the atomization nozzle are combined into an efficient sprinkling irrigation system, the generated pulse gas-liquid jet flow can further improve the atomization effect, the long range enables the sprinkling area to be large, the water consumption is effectively saved, the protection of water resources can be better realized, the irrigation efficiency is improved, and the agricultural production is efficiently promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a self-oscillating atomizer head for agricultural irrigation according to the present invention;
FIG. 2 is a cross-sectional view of a first nozzle of the self-oscillating atomizer for agricultural irrigation according to the present invention;
FIG. 3 is a cross-sectional view of a second nozzle of the self-oscillating atomizer head for agricultural irrigation according to the present invention;
FIG. 4 is a cross-sectional view of an atomizing nozzle in the self-oscillating atomizer for agricultural irrigation according to the present invention;
FIG. 5 is a sectional view of a water nozzle of the self-oscillating atomizer for agricultural irrigation according to the present invention.
Description of reference numerals: 100. the self-oscillation atomization nozzle for agricultural irrigation; 1. a first nozzle; 2. a second nozzle; 201. a first cylinder; 202. a second cylinder; 203. a third cylinder; 204. a fourth cylinder; 3. an atomizing nozzle; 301. a first circular tube; 302. a tapered tube; 303. a second circular tube; 304. an atomization hole; 4. a water spray nozzle; 401. a third circular tube; 402. a top plate; 403. a water spray hole; 5. a connecting cavity; 6. a tapered cavity; 7. a first thin lumen; 8. a first circular groove; 9. a second circular groove; 10. an oscillation cavity; 11. a second thin lumen; 12. an atomizing chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a self-oscillation atomizing nozzle for agricultural irrigation, which improves the atomizing effect, effectively saves water consumption and improves the irrigation efficiency.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
As shown in fig. 1-5, the embodiment provides a self-oscillation atomizer 100 for agricultural irrigation, including a first nozzle 1, a second nozzle 2, an atomizing nozzle 3 and a water nozzle 4, which are sequentially arranged from bottom to top, a connection cavity 5, a tapered cavity 6, a first thin tube cavity 7 and a mounting groove are sequentially arranged in the first nozzle 1 from bottom to top, a second nozzle 2 is installed in the mounting groove, an oscillation cavity 10 is formed between the bottom surface of the second nozzle 2 and the first nozzle 1, a second thin tube cavity 11 is arranged in the second nozzle 2, two ends of the oscillation cavity 10 are respectively communicated with the first thin tube cavity 7 and the second thin tube cavity 11, the atomizing nozzle 3 includes a first circular tube 301, a tapered tube 302 and a second circular tube 303 which are sequentially connected from bottom to top, the inner diameter of the first circular tube 301 is greater than the inner diameter of the second circular tube 303, the first circular tube 301 is sleeved on the outer upper end of the second nozzle 2, an atomizing hole 304 is arranged on the upper portion of the side wall of the first circular tube 301, the atomizing hole 304 is used for introducing gas, an atomizing hole is formed between the top surface of the first circular tube 301 and the top surface of the second nozzle 2, the top surface of the third circular tube 401 is arranged on the top surface of the third circular tube 401, and the top surface of the circular tube 401, the circular tube 401 is arranged on the top surface of the third circular tube 401. During the working process, the continuous jet flow entering the first nozzle 1 is emitted into the oscillation cavity 10, the pulse jet flow generated under the resonance action of the oscillation cavity 10 flows through the second thin tube cavity 11 of the second nozzle 2 and is emitted into the atomization cavity 12, and similarly, the pulse jet flow is emitted through the atomization nozzle 3 under the resonance action of the atomization cavity 12, enters the third circular tube 401 and is then sprayed out through the water spraying holes 403.
In this embodiment, the connection cavity 5 is a circular groove formed at the bottom of the first nozzle 1, the inner diameter of the connection cavity 5 is larger than the inner diameter of the bottom end of the tapered cavity 6, the inner diameter of the top end of the tapered cavity 6 is equal to the inner diameter of the first thin tube cavity 7, the inner diameters of the first thin tube cavity 7 and the second thin tube cavity 11 are both smaller than the inner diameter of the oscillation cavity 10, and the inner diameter of the second thin tube cavity 11 is smaller than the inner diameter of the atomization cavity 12.
In this embodiment, the lower surface of the top plate 402 is an inverted conical surface, which can disperse and accelerate the water flow toward the inverted conical surface.
Specifically, the water spray holes 403 are fan-shaped holes, and the fan-shaped holes extend along the circumferential direction of the third circular pipe 401.
In this embodiment, three fan-shaped holes are provided, the three fan-shaped holes are respectively a first fan-shaped hole, a second fan-shaped hole and a third fan-shaped hole, an included angle between a horizontal connection line between a midpoint of the first fan-shaped hole and a central axis of the third circular tube 401 and a horizontal connection line between a midpoint of the second fan-shaped hole and a central axis of the third circular tube 401 is 90 °, and an included angle between a horizontal connection line between a midpoint of the third fan-shaped hole and a central axis of the third circular tube 401 and a horizontal connection line between a midpoint of the second fan-shaped hole and a central axis of the third circular tube 401 is 90 °.
As shown in fig. 2, the mounting groove includes a first circular groove 8 and a second circular groove 9 which are sequentially arranged from bottom to top, the inner diameter of the second circular groove 9 is larger than the inner diameter of the first circular groove 8, the second nozzle 2 is installed in the second circular groove 9 in a threaded manner, and the lower end of the second nozzle 2 extends into the first circular groove 8, so that the threaded connection between the second nozzle 2 and the first nozzle 1 is realized.
As shown in fig. 3, the second nozzle 2 includes a first cylinder 201, a second cylinder 202, a third cylinder 203 and a fourth cylinder 204 which are connected in sequence from bottom to top, the outer diameters of the second cylinder 202, the first cylinder 201, the third cylinder 203 and the fourth cylinder 204 are reduced in sequence, the second cylinder 202 is installed in the second circular groove 9 in a threaded manner, the first cylinder 201 is matched with the first circular groove 8 in structure, and the first circular pipe 301 is sleeved on the fourth cylinder 204 in a threaded manner, so that the threaded connection between the atomizing nozzle 3 and the second nozzle 2 is realized.
Specifically, the third pipe 401 is threadedly sleeved on the outside of the second pipe 303, so as to realize the threaded connection between the water nozzle 4 and the atomizing nozzle 3.
It can be seen that, in this embodiment, the first nozzle 1, the second nozzle 2, the atomizing nozzle 3, and the water nozzle 4 are sequentially in threaded connection from bottom to top, and the threaded connection is mechanically anti-loose, so that the first nozzle 1, the second nozzle 2, the atomizing nozzle 3, and the water nozzle 4 are detachably connected, and replacement of accessories is facilitated.
In this embodiment, the first cylinder 201, the second cylinder 202, the third cylinder 203 and the fourth cylinder 204 are an integrated structure, the first circular tube 301, the tapered tube 302 and the second circular tube 303 are an integrated structure, and the third circular tube 401 and the top plate 402 are an integrated structure.
Specifically, the atomization holes 304 are threaded holes for connecting an air feed pipe through an externally threaded valve seat. During use, one end of the external thread valve seat is installed on the threaded hole, the other end of the external thread valve seat is connected with the air supply pipe, and gas is conveyed into the atomizing chamber 12 through the air supply pipe, the external thread valve seat and the atomizing hole 304.
In particular, the first thin lumen 7 has an internal diameter d 1 The inner diameter of the second thin lumen 11 is d 2 The second round tube 303 has an inner diameter d 3 ，
Wherein λ is a coefficient, the optimum working condition of the whole nozzle is determined by λ, the λ coefficient is a proportional value obtained according to the result of numerical simulation, and in the present embodiment, λ is less than or equal to 1.
Specifically, the taper angle of the tapered cavity 6 is α, and the taper angle of the tapered tube 302 is αIs beta. The size of the oscillation chamber 10 in the vertical direction is the length thereof, and the length of the oscillation chamber 10 is L 1 The inner diameter of the oscillation chamber 10 is D 1 . The dimension of the atomizing chamber 12 in the vertical direction is the length thereof, and the length of the atomizing chamber 12 is L 2 . The taper angle of the reverse tapered surface of the spout 4 is γ, the dimension of the spout hole 403 in the vertical direction is the width thereof, and the width of the spout hole 403 is L.
In the present embodiment, the taper angle α of the tapered cavity 6 in the first nozzle 1 and the length L of the oscillation cavity 10 1 And the length-diameter ratio L of the oscillation chamber 10 1 /D 1 The three parameters determine whether the self-oscillation effect of the first nozzle 1 can be optimal, and the optimal values of the three parameters are obtained in a numerical simulation mode, so that the self-oscillation effect of the first nozzle 1 can be optimal.
In this embodiment, the length L of the nebulizing chamber 12 2 The atomization effect of the atomizing nozzle 3 is determined, the cone angle beta of the cone-shaped pipe 302 in the atomizing nozzle 3 determines the accommodation effect of the finally formed atomized jet, and the L is obtained by carrying out numerical simulation according to the specific structure of the atomizing nozzle 3 2 And an optimum value of β.
In this embodiment, the width L of the water spraying hole 403, the taper angle γ of the inverted conical surface, and the opening area of the water spraying hole 403 determine the surrounding area ratio of the final amount of water for sprinkling irrigation to cover the agricultural land, and the optimal values of the above three parameters are obtained by numerical simulation, so as to maximize the sprinkling irrigation area.
The specific working process is as follows: irrigation water flow is injected into the oscillation cavity 10 through the connecting cavity 5, the conical cavity 6 and the first thin pipe cavity 7 of the first nozzle 1, the water flow forms a discrete vortex ring in the first nozzle 1, a vortex disturbance-amplification-vortex pulsation generation circulation process is formed by collision between the conical cavity 6 and the oscillation cavity 10, the process is continuously and circularly repeated, strong self-excited oscillation pulse jet flow is formed, cavitation is induced, and then the atomization effect is effectively improved. And then enters the atomizing nozzle 3 with the atomizing holes 304, the atomizing holes 304 are used for introducing gas, and the gas is fully combined with the self-oscillation pulse jet flow from the second nozzle 2 to achieve the atomizing effect. Finally, the water is jetted to the agricultural land from the plurality of water jetting holes 403 of the water jetting nozzle 4 toward the reverse tapered surface of the ceiling 402 of the water jetting nozzle 4.
Self-excited oscillation atomizer 100 for agricultural irrigation in this embodiment converts continuous jet into pulse jet, pulse jet has the energy consumption low, characteristics such as atomize well, first nozzle 1 that will produce pulse jet makes up into an efficient sprinkler irrigation system with atomizing nozzle 3, the pulse gas-liquid efflux of production can further improve atomization effect, the long-range protection that makes of range sprays the area big, effective water economy volume, can realize the protection of water resource better, irrigation efficiency is promoted, and then high-efficient promotion agricultural production.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. A self-oscillation atomizer for agricultural irrigation is characterized by comprising a first nozzle, a second nozzle, an atomizing nozzle and a water nozzle, wherein the first nozzle, the second nozzle, the atomizing nozzle and the water nozzle are sequentially arranged from bottom to top, a connecting cavity, a conical cavity, a first thin tube cavity and a mounting groove are sequentially arranged in the first nozzle from bottom to top, the second nozzle is mounted in the mounting groove, the bottom surface of the second nozzle and the first nozzle form the oscillating cavity, the second nozzle is internally provided with the second thin tube cavity, two ends of the oscillating cavity are respectively communicated with the first thin tube cavity and the second thin tube cavity, the atomizing nozzle comprises a first circular tube, a conical tube and a second circular tube which are sequentially connected from bottom to top, the inner diameter of the first circular tube is larger than that of the second circular tube, a first sleeved circular tube is mounted at the upper end outside the second nozzle, atomizing holes are formed in the upper portion of the side wall of the first circular tube and used for introducing gas, an atomizing cavity is formed between the first circular tube and the top surface of the second nozzle, the upper end of the second thin tube is communicated with the atomizing cavity, the water nozzle comprises a third circular tube, and a plurality of third circular tube are circumferentially arranged at the top of the third circular tube; the mounting groove comprises a first circular groove and a second circular groove which are sequentially arranged from bottom to top, the inner diameter of the second circular groove is larger than that of the first circular groove, the second nozzle is installed in the second circular groove in a threaded mode, and the lower end of the second nozzle extends into the first circular groove; the second nozzle comprises a first cylinder, a second cylinder, a third cylinder and a fourth cylinder which are sequentially connected from bottom to top, the outer diameter of the second cylinder is sequentially reduced by the first cylinder, the outer diameter of the third cylinder and the outer diameter of the fourth cylinder, the second cylinder is in threaded installation in the second circular groove, the first cylinder is matched with the first circular groove in structure, and the first circular pipe is sleeved with a thread.
2. The self-oscillating atomizer according to claim 1, wherein the lower surface of said top plate is an inverted conical surface.
3. A self-oscillating atomiser nozzle for agricultural irrigation according to claim 1, wherein said water jets are fan-shaped holes extending circumferentially around said third tube.
4. The self-oscillating atomizer according to claim 3, wherein there are three fan-shaped holes, each of the three fan-shaped holes is a first fan-shaped hole, a second fan-shaped hole and a third fan-shaped hole, an angle between a horizontal line connecting a midpoint of the first fan-shaped hole and a central axis of the third circular tube and a horizontal line connecting a midpoint of the second fan-shaped hole and a central axis of the third circular tube is 90 °, and an angle between a horizontal line connecting a midpoint of the third fan-shaped hole and a central axis of the third circular tube and a horizontal line connecting a midpoint of the second fan-shaped hole and a central axis of the third circular tube is 90 °.
5. The self-oscillating atomizer according to claim 1, wherein said third tube is threadably received on an exterior of said second tube.
6. The self-oscillating atomizer according to claim 1, wherein said atomizing orifice is a threaded orifice for connection to an air delivery tube through an externally threaded valve seat.
7. The self-oscillating atomizer according to claim 1, wherein said first thin tube chamber has an inner diameter d 1 The inner diameter of the second thin tube cavity is d 2 The inner diameter of the second round tube is d 3 ，
λ≤1。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110856891.0A CN113499871B (en) | 2021-07-28 | 2021-07-28 | Self-oscillation atomization nozzle for agricultural irrigation |
| NL2031639A NL2031639B1 (en) | 2021-07-28 | 2022-04-20 | Self-oscillation atomizer for agricultural irrigation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110856891.0A CN113499871B (en) | 2021-07-28 | 2021-07-28 | Self-oscillation atomization nozzle for agricultural irrigation |
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| CN113499871A CN113499871A (en) | 2021-10-15 |
| CN113499871B true CN113499871B (en) | 2022-12-09 |
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| CN115841088B (en) * | 2022-12-28 | 2023-08-15 | 南京农业大学 | Design method of three-dimensional special-shaped jet nozzle for farmland water-saving irrigation field |
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- 2022-04-20 NL NL2031639A patent/NL2031639B1/en active
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| Publication number | Publication date |
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| CN113499871A (en) | 2021-10-15 |
| NL2031639B1 (en) | 2023-02-02 |
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Application publication date: 20211015 Assignee: Hunan liziwan Agricultural Development Co.,Ltd. Assignor: Hunan University of Humanities, Science and Technology Contract record no.: X2023980050631 Denomination of invention: A self-excited oscillating atomizing nozzle for agricultural irrigation Granted publication date: 20221209 License type: Common License Record date: 20231212 Application publication date: 20211015 Assignee: LIANYUAN XINLYU AGRICULTURAL TECHNOLOGY CO.,LTD. Assignor: Hunan University of Humanities, Science and Technology Contract record no.: X2023980050629 Denomination of invention: A self-excited oscillating atomizing nozzle for agricultural irrigation Granted publication date: 20221209 License type: Common License Record date: 20231212 |
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Application publication date: 20211015 Assignee: Hunan Shuotai Agricultural Comprehensive Development Co.,Ltd. Assignor: Hunan University of Humanities, Science and Technology Contract record no.: X2023980052631 Denomination of invention: A self-excited oscillating atomizing nozzle for agricultural irrigation Granted publication date: 20221209 License type: Common License Record date: 20231218 |