CN101773894A - Phase-controlled ultrasonic wave atomizing nozzle - Google Patents
Phase-controlled ultrasonic wave atomizing nozzle Download PDFInfo
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- CN101773894A CN101773894A CN 201010122838 CN201010122838A CN101773894A CN 101773894 A CN101773894 A CN 101773894A CN 201010122838 CN201010122838 CN 201010122838 CN 201010122838 A CN201010122838 A CN 201010122838A CN 101773894 A CN101773894 A CN 101773894A
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Abstract
The invention relates to a phase-controlled ultrasonic wave atomizing nozzle, comprising a front cover, an end cover and a phase-controlled high frequency ultrasonic transducer array; wherein the phase-controlled high frequency ultrasonic transducer array comprises a supporting piece, a plurality of array elements and a phase-controlled exciting bank for driving the array elements; the element array is distributed with a plurality of holes, each hole is provided with an array element, the array elements are distributed at equal interval in a ring-array manner, the supported embedded with array elements, the front cover and the end cover form a sandwich structure, a top end of an amplitude transformer is a liquid atomization surface, the liquid to be atomized passes through a central channel to reach the liquid atomization surface. As the phase-controlled ultrasonic transducer array scheme is adopted, size of a single array element piezoelectric piece is reduced, so that relatively high ultrasonic atomization frequency can be provided; and based on the same amplitude transformer structure, amplitude of the atomization surface can meet atomization requirements on liquid with relatively large viscosity and atomization degree of liquid drop can be improved.
Description
Technical field
The present invention relates to a kind of atomizer of liquid medium, particularly relate to the ultrasonic atomizing nozzle that a kind of phased transducer arrays that is used for big viscous liquid activates, belong to atomization of liquid field.
Background technology
Spraying be with liquid by nozzle ejection in gas medium, make it to disperse and be broken into the process of granule drop.Because liquid is with respect to the high-speed motion of air or gas, perhaps since mechanical energy apply rotation or vibration with injection apparatus, liquid can be atomized into the fine particle of various sizes scope.
Since eighties of last century end of the eighties, the beginning of the nineties, ultrasonic atomizatio causes people's attention gradually as a novel atomization technique.When liquid is flowed through the atomization surface that ultrasonic transduction activates, will form the wavy fluid film of one deck at atomization surface, along with the increase of vibration amplitude, the liquid surface wave amplitude also increases.When liquid film surface wave amplitude increased to certain value, the top of liquid surface wave will become unstable and break, and sprayed from atomization surface to throw away a large amount of tiny vaporific drops.Because ultrasonic atomizatio can obtain splendid atomization quality under very low liquid transmission speed, droplet sizes is tiny evenly, and atomizing effect is controlled easily, so in every field general application is arranged.At present, the ultrasonic atomizatio technology has been widely used in aspects such as air wetting, medicament nebulae inhalation, semiconductor etching, electronic product salt spray test and spectrum analysis.
Ultrasonic nozzle shown in the U.S. Pat 4978067 is to obtain a kind of piezoelectric actuated ultrasonic atomizing nozzle widely applied at present, this nozzle is actually a resonance device, it is made up of a pair of piezoelectric disc that is clipped in the titanium shell, and atomization surface is positioned at nozzle exit.Two utmost points that the piezoelectric disc that compresses is imported as power supply, metal shell is as another utmost point.When the polarity at the two poles of the earth back and forth changed with high-frequency input signal, piezoelectric disc will vibrate with the frequency identical with input signal, and the pressure waves that vibration produces to propagation, causes that nozzle-end takes place and the vibration of input signal same frequency along nozzle shaft.The nozzle length of design just in time equals the wavelength of a pressure wave, and pressure wave forms the standard wave pattern in the stack and the resonance that come back reflective build-up of pressure ripple of two end faces of nozzle.Because free-ended boundary condition restriction, crest is positioned at two ends of nozzle.The size of resonance amplitude is relevant with the diameter of cover plate, because the diameter of nozzle exit end protecgulum diminishes, thereby the amplitude of resonance is exaggerated, and port of export amplitude is far longer than the arrival end amplitude, and the amplitude of increase equates with the variation of nozzle diameter.
Along with frequency of ultrasonic is high more, the yardstick of atomized drop is also thin more.Low-viscosity (mobile) liquid average atomizing yardstick under 20KHz is 90 microns, and the average atomizing yardstick is 30 microns under 90KHz.For the big more liquid of viscosity, viscous drag is big more, and surface tension is generally also big more, and the liquid ultrasonic atomizatio must provide enough amplitudes to make liquid under the effect of surface wave on the basis that forms the good fluid film, is broken into tiny vaporific drop.Yet supersonic frequency is high more, and the size of corresponding piezoelectric chip is more little, and the amplitude of atomization surface is also corresponding thereupon reduces, and therefore, the liquid viscosity that can atomize also can be more little.The nozzle of similar patent US4978067 structure, operating frequency 100Hz, to desirable atomizing effect, the liquid viscosity value can not surpass 60 centipoises, and solid matter content should be lower than 30%.
Summary of the invention
(1) technical problem that will solve
Purpose of the present invention is at the deficiencies in the prior art, a kind of ultrasonic atomizing nozzle that can utilize surface wave atomization mechanism is provided, adopt control battle array high-frequency transducer array to activate, form bigger amplitude at the atomization surface place, the liquid-sheet atomization of atomization surface is become meticulous drop, for the bigger drop of viscosity, also can atomize preferably.
(2) technical scheme
For achieving the above object, technical scheme of the present invention is to adopt a kind of phase-controlled ultrasonic wave atomizing nozzle, comprise: cylindrical protecgulum, bonnet and phased high-frequency transducer array, described phased high-frequency transducer array comprises a support member, some array elements of the same size and be used to drive the phased exciting bank of described array element, be distributed with some holes on the described support member, be provided with a described array element in the hole, and ring battle array mode distributes all array elements to divide into groups equidistantly, the support member that is inlaid with array element is clamped between described protecgulum and the bonnet by the screwed pipe and the bonnet of protecgulum rear side, the front end of described protecgulum has been the luffing bar of amplitude amplification, the tip of luffing bar is atomization of liquid surface, runs through to be covered with the centre gangway that passes for liquid to be atomized before described.
Preferably, in described array element, array element distance is less than or equal to spacing between group in the group.
Preferably, be provided with the support member that screwed hole and the screwed pipe of protecgulum rear side are connected and are inlaid with array element to grip in the described bonnet.
Preferably, described array element comprises a pair of ring piezoelectric sheet with an input electrode sheet and become sandwich type structural, and described input electrode sheet is connected with phased exciting bank.
(3) beneficial effect
Compare with ultrasonic atomizing nozzle of the prior art, the present invention is owing to adopted above-mentioned phase-controlled ultrasonic wave transducer array scheme, reduced the size of single piezoelectric patches, higher ultrasonic atomizatio frequency can be provided, and based on same luffing bar structure, the amplitude of atomization surface can satisfy the atomizing requirement of big viscous liquid, improved the finer atomization degree of drop simultaneously, thereby can satisfy the requirement of multiple liquid uniform atomizing better, increased the accommodation of atomizing, and novel structure compactness of the present invention, function admirable, work has broad application prospects flexibly.
Description of drawings
Fig. 1 is the section of structure of phase-controlled ultrasonic wave atomizing nozzle of the present invention;
Fig. 2 is the 3D entity schematic diagram of phase-controlled ultrasonic wave atomizing nozzle of the present invention;
Fig. 3 is the 3D entity structure schematic diagram of circular transducer array element cylindrical support member of the present invention;
Fig. 4 is the 3D structural representation of circular transducer array element cylindrical support member of the present invention.
Fig. 5 is the 3D structural representation of square support member of the present invention.
Among the figure: 1, protecgulum; 1a, luffing bar; 1b, screwed pipe; 1c, centre gangway; 2, piezoelectric patches; 3, electrode slice; 4, support member; 4a, hole; 5, bonnet.
The specific embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
As shown in Figures 1 to 3, the phased piezoelectric patches array atomizer of the present embodiment support member 4 that comprises some array elements, be used to drive the phased exciting bank of each array element and be distributed with some hole 4a.
The place ahead of protecgulum 1 is luffing bar 1a, and the diameter of this luffing bar 1a runs through described luffing bar 1a and protecgulum 1 and is provided with the centre gangway 1c that passes for liquid to be atomized less than the diameter of protecgulum 1.The rear of protecgulum 1 is screwed pipe 1b, is provided with screwed hole in the bonnet 5, and screwed pipe 1b is connected and fixed with it.
The array element of present embodiment adopts planar rondure, sandwich type structural, and the diameter of each array element, thickness are all identical, and available PZT-8 piezoelectric ceramics is made, and device outer surface gummed has matching layer.Array element comprises that a pair of ring piezoelectric sheet 2 is with an input electrode sheet 3 and become sandwich type structural.Wherein each array element is connected with a phased ultrasound exciting bank, and phased exciting bank makes the same-phase work simultaneously of each array element, activates ultrasonic amplitude transformer 1a jointly, makes it to produce the enough amplitudes that make the atomization of liquid at the to be atomized surperficial 1d place at luffing bar 1a tip.
The luffing bar part that plays the ultrasonic amplitude amplification on the protecgulum can be taper shape, index shape or notch cuttype as shown in Figure 1.
Each array element of present embodiment all is independent controlled, and the phase place that the phase place of adjusting driving signal has also just been regulated the array element surface vibration makes it same-phase work, activates atomization surface work jointly.
During work, the array element driving frequency equates therefore, high-frequency bigger amplitude vibration is arranged at the atomization surface place with ultrasonic nozzle higher order resonances frequency.When liquid to be atomized passes the to be atomized surperficial 1d that centre gangway 1c arrives luffing bar 1a tip, on this atomization surface, be atomized into meticulous drop.
More than support member 4 is illustrated for circular structure, but support member 4 of the present invention can also be for being square shown in Fig. 4,5, and hole 4a also can be for square, at this moment, array element is that linear array is equidistantly arranged, its quantity can require to select for use different support members according to the characteristic of atomized liquid.
In sum, the invention provides a kind of novel phased transducer arrays ultrasonic atomizing nozzle, this nozzle not only satisfies the uniform atomizing requirement of existing low-viscosity (mobile) liquid, can satisfy simultaneously the atomizing requirement of the high frequency ultrasound of the liquid of viscosity greatly, form meticulous uniform atomizing drop, increased the accommodation of the atomization of liquid.
Claims (4)
1. a phase-controlled ultrasonic wave atomizing nozzle is characterized in that, comprising: cylindrical protecgulum, bonnet and phased high-frequency transducer array,
Described phased high-frequency transducer array comprises a support member, some array element of the same size and is used to drive the phased exciting bank of described array element, is distributed with some holes on the described support member,
Be provided with a described array element in the hole, and all array elements a ring battle array mode distributes to divide into groups equidistantly,
The support member that is inlaid with array element is clamped between described protecgulum and the bonnet by the screwed pipe and the bonnet of protecgulum rear side,
The front end of described protecgulum has been the luffing bar of amplitude amplification, and the tip of luffing bar is atomization of liquid surface, runs through described protecgulum and luffing bar and is provided with the centre gangway that passes for liquid to be atomized.
2. phase-controlled ultrasonic wave atomizing nozzle as claimed in claim 1 is characterized in that, in described array element, array element distance is less than or equal to spacing between group in the group.
3. phase-controlled ultrasonic wave atomizing nozzle as claimed in claim 1 is characterized in that, is provided with the support member that screwed hole and the screwed pipe of protecgulum rear side are connected and are inlaid with array element to grip in the described bonnet.
4. phase-controlled ultrasonic wave atomizing nozzle as claimed in claim 1 is characterized in that, described array element comprises a pair of ring piezoelectric sheet with an input electrode sheet and become sandwich type structural, and described input electrode sheet is connected with phased exciting bank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010122838XA CN101773894B (en) | 2010-03-11 | 2010-03-11 | Phase-controlled ultrasonic wave atomizing nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010122838XA CN101773894B (en) | 2010-03-11 | 2010-03-11 | Phase-controlled ultrasonic wave atomizing nozzle |
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| Publication Number | Publication Date |
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| CN101773894A true CN101773894A (en) | 2010-07-14 |
| CN101773894B CN101773894B (en) | 2012-06-20 |
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| CN201010122838XA Expired - Fee Related CN101773894B (en) | 2010-03-11 | 2010-03-11 | Phase-controlled ultrasonic wave atomizing nozzle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861366A (en) * | 2012-09-13 | 2013-01-09 | 童自国 | Wound sterilizing and cleaning device for mixing ozone gas and liquid by applying ultrasonic technique |
| CN103212508A (en) * | 2013-04-11 | 2013-07-24 | 南京长辉机电科技有限公司 | Piezoelectric ultrasonic atomizer |
| CN104043527A (en) * | 2014-06-30 | 2014-09-17 | 山东大学 | Surface membrane coagulation technology and device for efficiently removing fire coal flying ash microspheres |
| CN105268589A (en) * | 2014-05-28 | 2016-01-27 | 闫冬 | Microporous atomizer and adjusting method of atomization amount thereof |
| TWI548462B (en) * | 2012-05-30 | 2016-09-11 | 陳文賓 | Brush wheel type nebulizer |
| CN107803297A (en) * | 2017-11-16 | 2018-03-16 | 叶志徐 | A kind of integrated ultrasonic atomizing device |
| CN108348699A (en) * | 2015-10-30 | 2018-07-31 | 强生消费者公司 | Sterile aerosol atomising device |
| CN114100942A (en) * | 2021-12-30 | 2022-03-01 | 北京科技大学 | Ultrasonic atomizing nozzle for forming rectangular spraying section |
| US11571222B2 (en) | 2017-11-21 | 2023-02-07 | Qingdao university of technology | Neurosurgical ultrasonic focusing assisted three-stage atomization cooling and postoperative wound film forming device |
| US11571704B2 (en) | 2015-10-30 | 2023-02-07 | Johnson & Johnson Consumer Inc. | Aseptic aerosol misting device |
| US11583885B2 (en) | 2015-10-30 | 2023-02-21 | Johnson & Johnson Consumer Inc. | Unit dose aseptic aerosol misting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4978067A (en) * | 1989-12-22 | 1990-12-18 | Sono-Tek Corporation | Unitary axial flow tube ultrasonic atomizer with enhanced sealing |
| KR100690282B1 (en) * | 2005-12-28 | 2007-03-12 | 한국생산기술연구원 | Ultrasonic nozzle for high frequency application |
| CN1990063A (en) * | 2005-12-30 | 2007-07-04 | 重庆融海超声医学工程研究中心有限公司 | high-intensity focusing ultrasonic transducer array |
| CN101282792A (en) * | 2005-05-02 | 2008-10-08 | 香港功能陶瓷有限公司 | Piezoelectric fluid atomizer apparatuses and methods |
| CN201135950Y (en) * | 2007-12-25 | 2008-10-22 | 昆山攀特电陶科技有限公司 | Sandwich type piezoelectric ceramics ultrasound atomizer plate |
| CN101349014A (en) * | 2007-07-17 | 2009-01-21 | 中国科学院理化技术研究所 | Cooling-down air conditioner facing |
-
2010
- 2010-03-11 CN CN201010122838XA patent/CN101773894B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4978067A (en) * | 1989-12-22 | 1990-12-18 | Sono-Tek Corporation | Unitary axial flow tube ultrasonic atomizer with enhanced sealing |
| CN101282792A (en) * | 2005-05-02 | 2008-10-08 | 香港功能陶瓷有限公司 | Piezoelectric fluid atomizer apparatuses and methods |
| KR100690282B1 (en) * | 2005-12-28 | 2007-03-12 | 한국생산기술연구원 | Ultrasonic nozzle for high frequency application |
| CN1990063A (en) * | 2005-12-30 | 2007-07-04 | 重庆融海超声医学工程研究中心有限公司 | high-intensity focusing ultrasonic transducer array |
| CN101349014A (en) * | 2007-07-17 | 2009-01-21 | 中国科学院理化技术研究所 | Cooling-down air conditioner facing |
| CN201135950Y (en) * | 2007-12-25 | 2008-10-22 | 昆山攀特电陶科技有限公司 | Sandwich type piezoelectric ceramics ultrasound atomizer plate |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI548462B (en) * | 2012-05-30 | 2016-09-11 | 陳文賓 | Brush wheel type nebulizer |
| CN102861366B (en) * | 2012-09-13 | 2014-07-02 | 童自国 | Wound sterilizing and cleaning device for mixing ozone gas and liquid by applying ultrasonic technique |
| CN102861366A (en) * | 2012-09-13 | 2013-01-09 | 童自国 | Wound sterilizing and cleaning device for mixing ozone gas and liquid by applying ultrasonic technique |
| CN103212508A (en) * | 2013-04-11 | 2013-07-24 | 南京长辉机电科技有限公司 | Piezoelectric ultrasonic atomizer |
| CN105268589A (en) * | 2014-05-28 | 2016-01-27 | 闫冬 | Microporous atomizer and adjusting method of atomization amount thereof |
| CN104043527A (en) * | 2014-06-30 | 2014-09-17 | 山东大学 | Surface membrane coagulation technology and device for efficiently removing fire coal flying ash microspheres |
| US11571704B2 (en) | 2015-10-30 | 2023-02-07 | Johnson & Johnson Consumer Inc. | Aseptic aerosol misting device |
| CN108348699A (en) * | 2015-10-30 | 2018-07-31 | 强生消费者公司 | Sterile aerosol atomising device |
| US11583885B2 (en) | 2015-10-30 | 2023-02-21 | Johnson & Johnson Consumer Inc. | Unit dose aseptic aerosol misting device |
| CN107803297A (en) * | 2017-11-16 | 2018-03-16 | 叶志徐 | A kind of integrated ultrasonic atomizing device |
| US11571222B2 (en) | 2017-11-21 | 2023-02-07 | Qingdao university of technology | Neurosurgical ultrasonic focusing assisted three-stage atomization cooling and postoperative wound film forming device |
| CN114100942A (en) * | 2021-12-30 | 2022-03-01 | 北京科技大学 | Ultrasonic atomizing nozzle for forming rectangular spraying section |
| CN114100942B (en) * | 2021-12-30 | 2023-02-24 | 北京科技大学 | Ultrasonic atomizing nozzle for forming rectangular spraying section |
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| Publication number | Publication date |
|---|---|
| CN101773894B (en) | 2012-06-20 |
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Granted publication date: 20120620 Termination date: 20200311 |