CN104209222A - Bernoulli twisted-pair low-frequency ultrasonic triple atomizing spray nozzle - Google Patents
Bernoulli twisted-pair low-frequency ultrasonic triple atomizing spray nozzle Download PDFInfo
- Publication number
- CN104209222A CN104209222A CN201410484011.1A CN201410484011A CN104209222A CN 104209222 A CN104209222 A CN 104209222A CN 201410484011 A CN201410484011 A CN 201410484011A CN 104209222 A CN104209222 A CN 104209222A
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- twisted
- pair cable
- bernoulli jacob
- bernoulli
- hole
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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
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0653—Details
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- Special Spraying Apparatus (AREA)
Abstract
The invention discloses a Bernoulli twisted-pair low-frequency ultrasonic triple atomizing spray nozzle. The overall vibrating direction of the spray nozzle is an axial direction. An amplitude-change pole of the Bernoulli twisted-pair low-frequency ultrasonic triple atomizing spray nozzle is a twisted-pair composite amplitude-change pole. A metal for making the Bernoulli twisted-pair composite amplitude-change pole is small in size and generates little heat, so that the defects of large metal sizes and large heat generation amounts of a conical amplitude-change pole and a stepped amplitude-change pole are overcome; by adopting the Bernoulli twisted-pair low-frequency ultrasonic triple atomizing spray nozzle disclosed by the invention, fog drops undergo triple atomization on the right end face of a metal sheet under the wind power action of a fan on an air inlet pipeline, so that the defect of difficulty in generating ultrafine fog drops in low-frequency ultrasonic atomization is overcome; the spray nozzle can be applied to the fields of atomizing cultivation, ultrasonic spraying and the like.
Description
Technical field
The invention belongs to atomising cultivation field, be specifically related to a kind of ultrasonic atomizatio shower nozzle technology.
Background technology
Ultrasonic atomizer has a wide range of applications at agricultural engineering field due to advantages such as its droplet sizes fine uniform.Ultrasonic atomizatio refers to and utilizes the electronics higher-order of oscillation, by the high-frequency resonant of ceramic atomizing piece, liquid water molecules structure is broken up and produces the elegant water smoke of nature, does not need heating or adds any chemical reagent.The principal shape of the ultrasonic transformer of current ultrasonic atomizatio shower nozzle has taper shape, Bezier type and notch cuttype etc.Conical horn, structure is simple, be easy to Design and manufacture, but its amplification coefficient is low; Horn,stepped has high amplification coefficient, but also having high stress concentrates, and easily fractures.Its ultrasonic transformer metal volume of conical horn, horn,stepped is large, and heating is many, causes the life-span short.The invention provides a kind of Bernoulli Jacob's twisted-pair cable type complex horn, this structure ultrasonic transformer metal volume used is little, and heating is few, can generate ultra-fine droplet.
Ultrasonic secondary atomized spray head is the most critical parts of ultrasonic atomizer, is made up of ultrasonic transducer, ultrasonic transformer, nozzle and steel suspension ball four part, and one end of ultrasonic transformer connects ultrasonic transducer, and the other end connects nozzle, arranges steel ball in nozzle forward part.The transform electrical signals of the higher-order of oscillation is become ultrasonic mechanical vibration by ultrasonic transducer, the sonic wave amplitude that ultrasonic transducer produces by ultrasonic transformer amplifies, atomization face place before nozzle produces cavitation effect, by the atomization of liquid, produce focusing acoustic field to be got up by steel ball hang, the droplet of generation and suspension ball collide and produce fine mist simultaneously.Can only secondary-atomizing be there is in this ultrasonic nozzle.The present invention is intended to overcome above-mentioned the deficiencies in the prior art, provides a kind of three atomizers.
Summary of the invention
The object of the present invention is to provide a kind of Bernoulli Jacob's twisted-pair cable type low frequency ultrasound three atomizers, to reduce metal heating, make droplet that three atomizations occur, obtain ultra-fine droplet.
In order to solve above technical problem, the concrete technical scheme that the present invention adopts is as follows:
A kind of Bernoulli Jacob's twisted-pair cable type low frequency ultrasound three atomizers, comprise the back shroud (1), thin electrodes (2), piezoelectric ceramics (3) and the front shroud (6) that are from left to right connected in turn by fastening bolt (5); Comprise the fastening bolt (5), dead ring (4) and the piezoelectric ceramics (3) that coaxially link together successively from inside to outside;
It is characterized in that: comprise Bernoulli Jacob's twisted-pair cable type complex horn (8) be composited by part A and part B two parts; Described part A is cylinder, and described cylinder diameter is 30mm-35mm; The outline line of described part B is Bernoulli Jacob's twisted-pair cable; Bernoulli Jacob's twisted-pair cable curve of described part B is (x
2+ y
2)
2=2a
2(x
2-y
2), a=30mm-35mm; The right side diameter of a circle of described part B is 10mm-15mm.
The first half of described Bernoulli Jacob's twisted-pair cable type complex horn (8) has a through hole A, and the upper end of through hole A is inlet (9), and the right-hand member of through hole A is liquid outlet (10); The latter half of Bernoulli Jacob's twisted-pair cable type complex horn (8) has a through hole B, and the right-hand member of through hole B is air outlet (18), and the lower end of through hole B is air inlet (16); Described through hole A and through hole B is symmetrical along axis mn on plane xoy; Air inlet (16) lower end connects intake stack (15); Fan (17) is contained in the porch of intake stack (15); The wind speed of fan (17) is 15m/s-20m/s; Bernoulli Jacob's twisted-pair cable type complex horn (8) right-hand member connection metal thin slice (11), form tapering space between described liquid outlet (10) and sheet metal (11), described tapering space length is from left to right 1.5cm-2cm.
The course of work of the present invention is as follows: liquid flows in ultrasonic atomizatio shower nozzle from the inlet Bernoulli Jacob's twisted-pair cable type complex horn, flows out from the liquid outlet Bernoulli Jacob's twisted-pair cable type complex horn, in the first time atomization of the taper end face of liquid outlet.Droplet velocities after first time atomization is lower is 3m/s-4m/s, droplet velocities under the wind-force effect of fan after first time atomization increases, the left end at sheet metal is beaten with higher speed, there is second time atomization in droplet, the mist droplet particle size after second time atomization is less than the mist droplet particle size after first time atomization.The laser via of droplet from sheet metal under the wind-force effect of fan after second time atomization penetrate, because sheet metal to do the ultrasonic vibration of same frequency with ultrasonic transformer, is atomized so there is third time in the outer face of sheet metal.
The present invention has beneficial effect.1, Bernoulli Jacob's twisted-pair cable type low frequency ultrasound of the present invention three atomizers adopt Bernoulli Jacob's twisted-pair cable type complex horn, Bernoulli Jacob's twisted-pair cable type complex horn metal volume used is little, heating is few, overcome conical horn, its ultrasonic transformer metal volume of horn,stepped is large, the shortcoming that heating is many; 2, Bernoulli Jacob's twisted-pair cable type low frequency ultrasound of the present invention three atomizers can make droplet that three atomizations occur, and obtain ultra-fine droplet.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of Bernoulli Jacob's twisted-pair cable type low frequency ultrasound of the present invention three atomizers;
Fig. 2 is the schematic diagram of Bernoulli Jacob's twisted-pair cable type complex horn of the present invention;
Fig. 3 is the enlarged drawing of the right-hand member of Bernoulli Jacob's twisted-pair cable type low frequency ultrasound of the present invention three atomizers;
Fig. 4 is the profile of the junction of front shroud of the present invention and Bernoulli Jacob's twisted-pair cable type complex horn;
Fig. 5 is the enlarged drawing of miniature fastening bolt of the present invention;
In figure: 1, back shroud; 2, thin electrodes; 3, piezoelectric ceramics; 4, dead ring; 5, fastening bolt; 6, front shroud; 7, miniature fastening bolt; 8, Bernoulli Jacob's twisted-pair cable type complex horn; 9, inlet; 10, liquid outlet; 11, sheet metal; 12, negative wire; 13, positive wire; 14, ring flange; 15, intake stack; 16, air inlet; 17, fan; 18, air outlet.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5, whole ultrasonic atomizatio jet size is a pressure waves wavelength.The centre of two blocks of piezoelectric ceramics 3 is nodal section 1, and distance ultrasonic atomizatio shower nozzle left side, nodal section 1 place is quarter-wave, and distance front shroud right side, nodal section 1 place is quarter-wave.Ring flange 14 mid point is nodal section 2, and distance front shroud right side, nodal section 2 place is quarter-wave, and distance ultrasonic atomizatio shower nozzle right side, nodal section 2 place is quarter-wave.The left end of two blocks of piezoelectric ceramics 3 connects a thin electrodes 2 respectively.The thin electrodes 2 of left end connects power cathode by negative wire 12; The thin electrodes 2 of right-hand member connects positive source by positive wire 13.The left end of the thin electrodes 2 of left end connects back shroud 1, and the right-hand member of the piezoelectric ceramics 3 of right-hand member connects front shroud 6.Back shroud 1, thin electrodes 2, piezoelectric ceramics 3, front shroud 6 from left to right link together successively by fastening bolt 5.Fastening bolt 5, dead ring 4, piezoelectric ceramics 3 coaxially link together successively from inside to outside.The right-hand member of front shroud 6 and the left end of Bernoulli Jacob's twisted-pair cable type complex horn 8 are linked together by 4 miniature fastening bolts 7.The first half of Bernoulli Jacob's twisted-pair cable type complex horn 8 has a through hole A, and the upper end of through hole A is inlet 9, and the right-hand member of through hole A is liquid outlet 10.The latter half of Bernoulli Jacob's twisted-pair cable type complex horn 8 has a through hole B, and the right-hand member of through hole B is air outlet 18, and the lower end of through hole B is air inlet 16.Air inlet 16 lower end connects intake stack 15.Fan 17 is contained in the porch of intake stack 15.The wind speed of fan 17 is 15m/s-20m/s.Bernoulli Jacob's twisted-pair cable type complex horn 8 right-hand member connection metal thin slice 11 is tapering space between the liquid outlet 10 on Bernoulli Jacob's twisted-pair cable type complex horn 8 and sheet metal 11.Tapering space length is from left to right 1.5cm-2cm, and the sheet metal 11 that tapering space is corresponding is equipped with laser via, and the diameter of laser via is 3 μm-5 μm.Nutrient solution flows in ultrasonic atomizatio shower nozzle from the inlet 9 Bernoulli Jacob's twisted-pair cable type complex horn 8, flows out from the liquid outlet 10 Bernoulli Jacob's twisted-pair cable type complex horn 8, in the first time atomization of the right side of liquid outlet 10.Droplet velocities after first time atomization is lower is 3m/s-4m/s, droplet velocities under the wind-force effect of fan 17 after first time atomization increases, the left end at sheet metal 11 is beaten with higher speed, there is second time atomization in droplet, the mist droplet particle size after second time atomization is less than the mist droplet particle size after first time atomization.Droplet after second time atomization penetrates from the laser via of sheet metal 11 under the wind-force effect of fan 17, and third time atomization occurs in the right side of sheet metal 11, and the mist droplet particle size after third time atomization is less than the mist droplet particle size after second time atomization.
As shown in Figure 2, Bernoulli Jacob's twisted-pair cable type complex horn 8 is composited by A, B two parts.The part A of Bernoulli Jacob's twisted-pair cable type complex horn 8 is cylinder, and cylinder diameter is 30mm-35mm.The outline line of the part B of Bernoulli Jacob's twisted-pair cable type complex horn 8 is Bernoulli Jacob's twisted-pair cable.Bernoulli Jacob's twisted-pair cable curve of the part B of Bernoulli Jacob's twisted-pair cable type complex horn 8 is (x
2+ y
2)
2=2a
2(x
2-y
2), wherein, a=30mm-35mm.The right side circular diameter of the part B of Bernoulli Jacob's twisted-pair cable type complex horn 8 is 10mm-15mm.
Claims (2)
1. Bernoulli Jacob's twisted-pair cable type low frequency ultrasound three atomizers, comprise the back shroud (1), thin electrodes (2), piezoelectric ceramics (3) and the front shroud (6) that are from left to right connected in turn by fastening bolt (5); Comprise the fastening screw (5), dead ring (4) and the piezoelectric ceramics (3) that coaxially link together successively from inside to outside;
It is characterized in that: also comprise Bernoulli Jacob's twisted-pair cable type complex horn (8) be composited by part A and part B two parts; Described part A is cylinder, and described cylinder diameter is 30mm-35mm; The outline line of described part B is Bernoulli Jacob's twisted-pair cable; Bernoulli Jacob's twisted-pair cable curve of described part B is (x
2+ y
2)
2=2a
2(x
2-y
2), a=30mm-35mm; The right side diameter of a circle of described part B is 10mm-15mm.
2. a kind of Bernoulli Jacob's twisted-pair cable type low frequency ultrasound three atomizers according to claims 1, is characterized in that:
The first half of described Bernoulli Jacob's twisted-pair cable type complex horn (8) has a through hole A, and the upper end of through hole A is inlet (9), and the right-hand member of through hole A is liquid outlet (10); The latter half of Bernoulli Jacob's twisted-pair cable type complex horn (8) has a through hole B, and the right-hand member of through hole B is air outlet (18), and the lower end of through hole B is air inlet (16); Described through hole A and through hole B is symmetrical along axis mn on plane xoy; Air inlet (16) lower end connects intake stack (15); Fan (17) is contained in the porch of intake stack (15); The wind speed of fan (17) is 15m/s-20m/s; Bernoulli Jacob's twisted-pair cable type complex horn (8) right-hand member connection metal thin slice (11), form tapering space between described liquid outlet (10) and sheet metal (11), described tapering space length is from left to right 1.5cm-2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410484011.1A CN104209222B (en) | 2014-09-19 | 2014-09-19 | A kind of Bernoulli Jacob's three atomizers of twisted-pair cable type low frequency ultrasound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410484011.1A CN104209222B (en) | 2014-09-19 | 2014-09-19 | A kind of Bernoulli Jacob's three atomizers of twisted-pair cable type low frequency ultrasound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104209222A true CN104209222A (en) | 2014-12-17 |
| CN104209222B CN104209222B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410484011.1A Expired - Fee Related CN104209222B (en) | 2014-09-19 | 2014-09-19 | A kind of Bernoulli Jacob's three atomizers of twisted-pair cable type low frequency ultrasound |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104621082A (en) * | 2015-01-26 | 2015-05-20 | 华南农业大学 | Standing wave resonant piezoelectric mist spraying device and method |
| CN104923436A (en) * | 2015-05-26 | 2015-09-23 | 江苏大学 | Low-frequency ultrasonic triple atomization nozzle |
| CN105499048A (en) * | 2016-01-19 | 2016-04-20 | 江苏大学 | Gas-assisted type low-frequency electrostatic ultrasonic atomization nozzle |
| CN105537047A (en) * | 2016-03-09 | 2016-05-04 | 苏州科技学院 | Novel cultivation ultrasonic atomization device with gathering function |
| CN107199148A (en) * | 2017-06-27 | 2017-09-26 | 江苏大学 | A kind of low-voltage driving moves axle Vickers shaped form three atomizers of low frequency ultrasound |
| WO2017166350A1 (en) * | 2016-04-01 | 2017-10-05 | 江苏大学 | Low frequency electrostatic ultrasonic atomising nozzle |
| CN108787299A (en) * | 2018-06-15 | 2018-11-13 | 江苏大学 | A kind of gas helps three parameter Weibull low-frequency ultrasonic atomizing nozzle of formula |
| CN109201365A (en) * | 2018-09-26 | 2019-01-15 | 江苏大学 | A kind of piezoelectricity-strength composite ultraphonic atomizer |
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| WO1999038621A1 (en) * | 1998-01-28 | 1999-08-05 | Danmist Aps | Method of piezoelectrically atomising and pumping fluids and piezoelectric fluid atomising and pumping device |
| JP2012020207A (en) * | 2010-07-12 | 2012-02-02 | Murata Mfg Co Ltd | Atomizing device and atomizer using the same |
| CN102500502A (en) * | 2011-10-10 | 2012-06-20 | 苏州科技学院 | Two-stage ultrasonic vibration atomizer |
| CN103056061A (en) * | 2013-01-27 | 2013-04-24 | 苏州科技学院 | Ultrasonic vibration atomizer |
| CN103084981A (en) * | 2013-01-27 | 2013-05-08 | 苏州科技学院 | Split type ultrasonic focusing steam fog cooling device |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999038621A1 (en) * | 1998-01-28 | 1999-08-05 | Danmist Aps | Method of piezoelectrically atomising and pumping fluids and piezoelectric fluid atomising and pumping device |
| JP2012020207A (en) * | 2010-07-12 | 2012-02-02 | Murata Mfg Co Ltd | Atomizing device and atomizer using the same |
| CN102500502A (en) * | 2011-10-10 | 2012-06-20 | 苏州科技学院 | Two-stage ultrasonic vibration atomizer |
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| CN103084981A (en) * | 2013-01-27 | 2013-05-08 | 苏州科技学院 | Split type ultrasonic focusing steam fog cooling device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104621082B (en) * | 2015-01-26 | 2017-01-18 | 华南农业大学 | Standing wave resonant piezoelectric mist spraying device and method |
| CN104621082A (en) * | 2015-01-26 | 2015-05-20 | 华南农业大学 | Standing wave resonant piezoelectric mist spraying device and method |
| CN104923436A (en) * | 2015-05-26 | 2015-09-23 | 江苏大学 | Low-frequency ultrasonic triple atomization nozzle |
| CN105499048B (en) * | 2016-01-19 | 2018-05-11 | 江苏大学 | A kind of gas helps formula low frequency electrostatic ultrasonic atomizing nozzle |
| CN105499048A (en) * | 2016-01-19 | 2016-04-20 | 江苏大学 | Gas-assisted type low-frequency electrostatic ultrasonic atomization nozzle |
| CN105537047A (en) * | 2016-03-09 | 2016-05-04 | 苏州科技学院 | Novel cultivation ultrasonic atomization device with gathering function |
| CN105537047B (en) * | 2016-03-09 | 2018-05-22 | 苏州科技大学 | A kind of cultivation ultrasonic atomizing device of novel belt aggregation capability |
| WO2017166350A1 (en) * | 2016-04-01 | 2017-10-05 | 江苏大学 | Low frequency electrostatic ultrasonic atomising nozzle |
| US10610880B2 (en) | 2016-04-01 | 2020-04-07 | Jiangsu University | Low frequency electrostatic ultrasonic atomising nozzle |
| CN107199148A (en) * | 2017-06-27 | 2017-09-26 | 江苏大学 | A kind of low-voltage driving moves axle Vickers shaped form three atomizers of low frequency ultrasound |
| CN108787299A (en) * | 2018-06-15 | 2018-11-13 | 江苏大学 | A kind of gas helps three parameter Weibull low-frequency ultrasonic atomizing nozzle of formula |
| CN109201365A (en) * | 2018-09-26 | 2019-01-15 | 江苏大学 | A kind of piezoelectricity-strength composite ultraphonic atomizer |
| CN109201365B (en) * | 2018-09-26 | 2021-04-20 | 江苏大学 | Piezoelectric-pneumatic composite ultrasonic atomization nozzle |
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