CN105201697B - Frequency-adjustable Pneumatic ultrasonic atomising device - Google Patents
Frequency-adjustable Pneumatic ultrasonic atomising device Download PDFInfo
- Publication number
- CN105201697B CN105201697B CN201510768147.XA CN201510768147A CN105201697B CN 105201697 B CN105201697 B CN 105201697B CN 201510768147 A CN201510768147 A CN 201510768147A CN 105201697 B CN105201697 B CN 105201697B
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- China
- Prior art keywords
- cavity
- atomising device
- inner core
- outer shroud
- supply pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
Frequency-adjustable Pneumatic ultrasonic atomising device, is related to a kind of atomising device.Equipped with air supply pipe, closed-loop, outer barrel, feed pipe, cavity inner core, cavity outer shroud, air jetting holes and liquid spray orifice；The inlet channel of the external atomization source of the gas of air inlet of air supply pipe, the external fluid supply to be atomized of water inlet of feed pipe, the gas outlet of air supply pipe and the water outlet of feed pipe are connect in the cavity of closed-loop and outer barrel composition, cavity inner core is equipped with external screw thread, cavity outer shroud is equipped with the internal thread matched with cavity inner core, cavity inner core and cavity outer shroud composition cavity, by adjusting the relative position of cavity inner core and cavity outer shroud, adjust cavity depth size, so as to adjust the atomization working frequency of atomising device, ensure that atomising device can reach optimal atomizing effect under various operating modes；Air jetting holes are arranged among the end of air supply pipe, for spraying gases at high pressure；Liquid spray orifice is located at around air jetting holes, for spraying liquid.Of simple structure and strong practicability, working range are wide.
Description
Technical field
The present invention relates to a kind of atomising device, more particularly, to a kind of frequency-adjustable Pneumatic ultrasonic atomising device.
Background technology
Fuel oil is required to be atomized before burning in engine, and the quality of atomization quality directly affects combustibility, fuel oil
Atomization quality it is bad can cause incomplete combustion, pernicious gas content increases in flue gas, and easy coking of nozzle etc. reduces the equipment longevity
Life, especially in aero-engine field, atomizing effect will bring serious security risk when deteriorating.
General atomized liquid (oil or water) all uses pressure atomized fog jet (swirl atomizer).When fluid flow is too big (or
When liquid viscosity is excessive), since swirl atomizer jet size increases, jet expansion liquid film increases, and liquid atomizing quality is caused to dislike
Change, the Sauter mean diameter of liquid pearl sharply increases.It is average straight in order to which preferable liquid pearl when fluid flow is larger, can be obtained
Footpath, general Alevaire, which accounts for, is atomized the 30%~60% of liquid quality, will so waste substantial amounts of Alevaire.With this not
With, ultrasonic wave atomizing nozzle merely with the pneumatic energy of Alevaire, does not depend on ultrasonic wave energy more and carrys out atomized liquid, because
This can also obtain good atomization and broad working range when compared with low speed flow.
Sun Xiaoxia (Sun Xiaoxia, the progress [J] of ultrasonic wave atomizing nozzle, Industrial Furnace, V0l.26
No.l Jan.2004:19-32) describe the principle of ultrasonic wave atomizing nozzle, progress and application example, it is indicated that resonator
Empirical equation is calculated as below in the frequency of formula ultrasonic wave atomizing nozzle：
F=c/4 [h+0.3 (Dr-Dc)]
Wherein c be the velocity of sound, h be resonant cavity depth, DrWith DcRespectively resonant cavity diameter and center shank diameter.
The content of the invention
It is an object of the invention to provide frequency-adjustable, can realize to plurality of liquid (fuel oil, water, heavy oil or other liquid)
Carry out a kind of frequency-adjustable Pneumatic ultrasonic atomising device of high-efficient atomizing.
The present invention is equipped with air supply pipe, closed-loop, outer barrel, feed pipe, cavity inner core, cavity outer shroud, air jetting holes and liquid
Spray orifice；The inlet channel of the external atomization source of the gas of air inlet of the air supply pipe, the external fluid supply to be atomized of water inlet of feed pipe,
The gas outlet of air supply pipe and the water outlet of feed pipe are connect in the cavity of closed-loop and outer barrel composition, and cavity inner core is equipped with outer spiral shell
Line, cavity outer shroud are equipped with the internal thread matched with cavity inner core, cavity inner core and cavity outer shroud composition cavity, by adjusting
The relative position of cavity inner core and cavity outer shroud adjusts cavity depth size, so as to adjust the atomization working frequency of atomising device,
Ensure that atomising device can reach optimal atomizing effect under various operating modes；Air jetting holes are arranged among the end of air supply pipe, are used
In ejection gases at high pressure；Liquid spray orifice is located at around air jetting holes, for spraying liquid.
The liquid spray orifice can be equipped with 4.
The outer barrel can be used regular hexahedron cylinder, and the cavity outer shroud can be used regular hexahedron cylinder, outside regular hexagon
Shape is easy to setup.
The invention discloses a kind of frequency-adjustable Pneumatic ultrasonic atomising device, supersonic gas is sprayed from air jetting holes
Go out, frontal impact cavity outer shroud combines the cavity to be formed with cavity inner core, is formed and swashed under airflow function, between nozzle and cavity
Wave train causes pressure to shake strongly, and ultrasound field is generated after resonating with cavity, and at the same time, liquid to be atomized is from feed pipe
The 4 liquid spouts of end circumferentially spray, and are broken under the strong effect of aerodynamic force and ultrasound field from fluid column rapidly
Brin ultimately forms uniform and minimum diameter atomized drop, achievees the purpose that atomization.The present invention can be realized to liquid object
The high-efficient atomizing of matter, and can ultrasonic wave frequency be changed by adjusting cavity depth according to actual condition, kind of liquid etc.
Rate obtains optimal atomizing effect.The configuration of the present invention is simple, it is highly practical.
The present invention can change ultrasonic frequency according to actual condition, kind of liquid etc. by adjusting cavity depth, so as to
Realize high-efficient atomizing of the plurality of liquid under various working.The ultrasonic wave generated using hypersonic air flow and cavity resonance, Ke Yishi
Now good atomizing effect is also obtained using a small amount of atomization gas.
Compared with traditional, pneumatic ultrasonic wave atomizing nozzle, the invention has the advantages that：
(1) cavity depth is adjustable, therefore can control sound field frequency, during being atomized under different operating modes
Obtain optimal atomization；
(2) due to frequency-adjustable, atomising device proposed by the present invention, which can be realized, is atomized a variety of liquid to be atomized,
Working range is wide.
Description of the drawings
Fig. 1 is the overall structure composition schematic diagram of the embodiment of the present invention.
Fig. 2 is the sectional view of the embodiment of the present invention.
Fig. 3 is the graphics of the air supply pipe of the embodiment of the present invention.
Fig. 4 is the sectional view of the air supply pipe of the embodiment of the present invention.
Fig. 5 is the front view of the outer barrel of the embodiment of the present invention.
Fig. 6 is the top view of the outer barrel of the embodiment of the present invention.
Fig. 7 is the front view of the closed-loop of the embodiment of the present invention.
Fig. 8 is the top view of the closed-loop of the embodiment of the present invention.
Fig. 9 is the front view of the cavity inner core of the embodiment of the present invention.
Figure 10 is the graphics of the cavity outer shroud of the embodiment of the present invention.
Figure 11 is the sectional view of the cavity outer shroud of the embodiment of the present invention.
Specific embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing.
As shown in Fig. 1~11, the embodiment of the present invention is equipped with air supply pipe 1, closed-loop 2, outer barrel 3, feed pipe 4, cavity inner core
5th, cavity outer shroud 6, air jetting holes 7 and liquid spray orifice 8；The inlet channel of the external atomization source of the gas of air inlet of the air supply pipe 1, supplies
The external fluid supply to be atomized of water inlet of water pipe 4, the gas outlet of air supply pipe 1 and the water outlet of feed pipe 4 connect closed-loop 2 and outer barrel
In the cavity of 3 compositions, cavity inner core 5 is equipped with external screw thread, and cavity outer shroud 6 is equipped with the internal thread matched with cavity inner core 5,
Cavity inner core 5 and cavity outer shroud 6 form cavity, by adjusting the relative position of cavity inner core 5 and cavity outer shroud 6, adjust cavity
Depth size, so as to adjust the atomization working frequency of atomising device, it is ensured that atomising device can reach optimal under various operating modes
Atomizing effect；Air jetting holes 7 are arranged among the end of air supply pipe 1, for spraying gases at high pressure；Liquid spray orifice 8 is located at gas spray
Around hole 7, for spraying liquid.
The liquid spray orifice 8 can be equipped with 4.
The outer barrel can be used regular hexahedron cylinder, and the cavity outer shroud can be used regular hexahedron cylinder, outside regular hexagon
Shape is easy to setup.
The air supply pipe 1 is the inlet channel for being atomized source of the gas, and gases at high pressure are after air supply pipe from air jetting holes 7 with supersonic speed
It sprays, frontal impact cavity inner core 5 combines the cavity formed, and the shape between air jetting holes outlet and cavity with cavity outer shroud 6
Into the shock train shaken strongly, the ultrasound field needed for atomization is generated after resonating with cavity.The air jetting holes 7 are located at air supply pipe
1 end, is designed using Contraction Ducts；External screw thread is provided on the cavity inner core 5, reach as shown in Figure 9 can be according to frequency
Rate adjustable range require processing and fabricating, the cavity outer shroud 6 be provided with 5 matched internal thread of cavity inner core, by adjusting recessed
The relative position of intracavitary core 5 and cavity outer shroud 6, you can simple and convenient adjustment cavity depth H size (as shown in Figure 2), so as to adjust
The atomization working frequency of whole atomising device.
At the same time, in the cavity that liquid to be atomized is formed from feed pipe 4 into closed-loop 2 and outer barrel 3, and from circumferential direction
4 liquid spouts 7 (as shown in Figure 3,4) for being arranged in 1 end of air supply pipe spray, in the strong effect of aerodynamic force and ultrasound field
Brin is broken for from fluid column rapidly down, uniform and minimum diameter atomized drop is ultimately formed, achievees the purpose that atomization.This hair
The bright high-efficient atomizing that can be realized to liquid, and can be according to actual condition, kind of liquid etc., by adjusting cavity depth
H is spent to change ultrasonic frequency, obtains optimal atomizing effect.
Claims (3)
1. frequency-adjustable Pneumatic ultrasonic atomising device, it is characterised in that equipped with air supply pipe, closed-loop, outer barrel, feed pipe, recessed
Intracavitary core, cavity outer shroud, air jetting holes and liquid spray orifice；The inlet channel of the external atomization source of the gas of air inlet of the air supply pipe,
The external fluid supply to be atomized of water inlet of feed pipe, the gas outlet of air supply pipe and the water outlet of feed pipe connect closed-loop and outer barrel group
Into cavity in, cavity inner core is equipped with external screw thread, and cavity outer shroud is equipped with the internal thread matched with cavity inner core, in cavity
Core and cavity outer shroud composition cavity, by adjusting the relative position of cavity inner core and cavity outer shroud, adjust cavity depth size, from
And adjust the atomization working frequency of atomising device, it is ensured that atomising device can reach optimal atomizing effect under various operating modes；Gas
Body spray orifice is arranged among the end of air supply pipe, for spraying gases at high pressure；Liquid spray orifice is located at around air jetting holes, for spraying
Go out liquid.
2. frequency-adjustable Pneumatic ultrasonic atomising device as described in claim 1, it is characterised in that the liquid spray orifice is equipped with 4
It is a.
3. frequency-adjustable Pneumatic ultrasonic atomising device as described in claim 1, it is characterised in that the outer barrel uses positive six
Face body cylinder, the cavity outer shroud use regular hexahedron cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510768147.XA CN105201697B (en) | 2015-11-12 | 2015-11-12 | Frequency-adjustable Pneumatic ultrasonic atomising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510768147.XA CN105201697B (en) | 2015-11-12 | 2015-11-12 | Frequency-adjustable Pneumatic ultrasonic atomising device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105201697A CN105201697A (en) | 2015-12-30 |
| CN105201697B true CN105201697B (en) | 2018-06-01 |
Family
ID=54949587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510768147.XA Expired - Fee Related CN105201697B (en) | 2015-11-12 | 2015-11-12 | Frequency-adjustable Pneumatic ultrasonic atomising device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105201697B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107324430A (en) * | 2017-08-01 | 2017-11-07 | 南京常荣声学股份有限公司 | A kind of method and apparatus that wastewater zero discharge is realized based on multiple-effect sound wave effect |
| CN107975823B (en) * | 2017-11-17 | 2020-05-01 | 中科合肥微小型燃气轮机研究院有限责任公司 | Ultrasonic nozzle atomizing device |
| CN110805494A (en) * | 2019-11-04 | 2020-02-18 | 西北工业大学 | Method for realizing pipeline frequency modulation by tubular layout design |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3081946A (en) * | 1962-07-09 | 1963-03-19 | Astrosonics Inc | Sonic spray nozzle |
| US3779460A (en) * | 1972-03-13 | 1973-12-18 | Combustion Equip Ass | Acoustic nozzle |
| EP0234077A1 (en) * | 1986-02-25 | 1987-09-02 | Council of Scientific and Industrial Research | Improved burner for furnaces employing acoustic energy |
| JPH0839028A (en) * | 1994-08-01 | 1996-02-13 | Toshio Hanya | Ultrasonic washing apparatus |
| CN201052493Y (en) * | 2007-05-08 | 2008-04-30 | 中国矿业大学 | Ultrasonic impulse nozzle |
| CN201427096Y (en) * | 2009-03-12 | 2010-03-24 | 余忠华 | Airflow type ultrasonic atomizing nozzle |
| CN205089493U (en) * | 2015-11-12 | 2016-03-16 | 厦门大学 | Tunable frequency pneumatic type ultrasonic atomization device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2536957C1 (en) * | 2013-07-26 | 2014-12-27 | Андрей Николаевич Дубровский | Pneumatic-acoustic rod-type atomiser |
-
2015
- 2015-11-12 CN CN201510768147.XA patent/CN105201697B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3081946A (en) * | 1962-07-09 | 1963-03-19 | Astrosonics Inc | Sonic spray nozzle |
| US3779460A (en) * | 1972-03-13 | 1973-12-18 | Combustion Equip Ass | Acoustic nozzle |
| EP0234077A1 (en) * | 1986-02-25 | 1987-09-02 | Council of Scientific and Industrial Research | Improved burner for furnaces employing acoustic energy |
| JPH0839028A (en) * | 1994-08-01 | 1996-02-13 | Toshio Hanya | Ultrasonic washing apparatus |
| CN201052493Y (en) * | 2007-05-08 | 2008-04-30 | 中国矿业大学 | Ultrasonic impulse nozzle |
| CN201427096Y (en) * | 2009-03-12 | 2010-03-24 | 余忠华 | Airflow type ultrasonic atomizing nozzle |
| CN205089493U (en) * | 2015-11-12 | 2016-03-16 | 厦门大学 | Tunable frequency pneumatic type ultrasonic atomization device |
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| Publication number | Publication date |
|---|---|
| CN105201697A (en) | 2015-12-30 |
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Granted publication date: 20180601 Termination date: 20181112 |