CN105201697A - Frequency adjustable pneumatic type ultrasonic atomization device - Google Patents
Frequency adjustable pneumatic type ultrasonic atomization device Download PDFInfo
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- CN105201697A CN105201697A CN201510768147.XA CN201510768147A CN105201697A CN 105201697 A CN105201697 A CN 105201697A CN 201510768147 A CN201510768147 A CN 201510768147A CN 105201697 A CN105201697 A CN 105201697A
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- gas
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- inner core
- supply pipe
- concave cavity
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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
The invention provides a frequency adjustable pneumatic type ultrasonic atomization device and relates to an atomization device. The frequency adjustable pneumatic type ultrasonic atomization device is provided with a gas supply pipe, a sealing ring, an outer barrel, a water supply pipe, a concave cavity inner core, a concave cavity outer ring, a gas spraying hole and a liquid spraying hole, wherein a gas inlet of the gas supply pipe is externally connected with a gas inlet channel of an atomization gas source; a water inlet of the water supply pipe is externally connected with a liquid source to be atomized; a gas outlet of the gas supply pipe and a water outlet of the water supply pipe are connected into a cavity composed of the sealing ring and the outer barrel; the concave cavity inner core is provided with an outer thread; the concave cavity outer ring is provided with an inner thread matched with the concave cavity inner core; a concave cavity is composed of the concave cavity inner core and the concave cavity outer ring; by adjusting relative positions of the concave cavity inner core and the concave cavity outer ring, the depth size of the concave cavity is adjusted, so that the atomization working efficiency of the atomization device is adjusted and the optimal atomization effect of the atomization device can be realized under various atomization working conditions; the gas spraying hole is formed in the middle of the tail end of the gas spraying hole and is used for spraying out high-pressure gas; the liquid spraying hole is formed in the periphery of the gas spraying hole and is used for spraying out liquid. The frequency adjustable pneumatic type ultrasonic atomization device has a simple structure, strong practicability and a wide working range.
Description
Technical field
The present invention relates to a kind of atomising device, especially relate to a kind of frequency-adjustable Pneumatic ultrasonic atomising device.
Background technique
Fuel oil all needed atomization before motor combustion, the quality of atomization quality directly affects combustion performance, the not good meeting of atomization quality of fuel oil causes incomplete combustion, in flue gas, harmful gas content increases, the easy coking of nozzle etc., reduce life of equipment, especially in aeroengine field, when atomizing effect worsens, will serious security risk be brought.
General atomized liquid (oil or water) all adopts pressure atomized fog jet (swirl atomizer).When fluid flow is too large (or when liquid viscosity is excessive), because swirl atomizer jet size increases, jet expansion liquid film increases, and cause liquid atomizing quality to worsen, the Sauter mean diameter of liquid pearl sharply increases.In order to when fluid flow is larger, can obtain desirable liquid pearl average diameter, general fogging agent accounts for and is atomized 30% ~ 60% of liquid quality, so will waste a large amount of fogging agents.In contrast to this, ultrasonic wave atomizing nozzle not only utilizes the pneumatic energy of fogging agent, more depends on ultrasonic wave energy and carrys out atomized liquid, therefore compared with also obtaining good atomization and broad operating range during low speed flow.
Sun Xiaoxia (Sun Xiaoxia, the progress [J] of ultrasonic wave atomizing nozzle, IndustrialFurnace, V0l.26No.lJan.2004:19-32) principle of ultrasonic wave atomizing nozzle is described, progress and application example, point out that the frequency of resonant cavity type ultrasonic wave atomizing nozzle has and calculate empirical correlation as follows:
f＝c/4[h+0.3(D
r-D
c)]
Wherein c is the velocity of sound, and h is the resonant cavity degree of depth, D
rwith D
cbe respectively resonant cavity diameter and center-pole diameter.
Summary of the invention
The object of the present invention is to provide frequency-adjustable, can realize carrying out plurality of liquid (fuel oil, water, heavy oil or other liquid) a kind of frequency-adjustable Pneumatic ultrasonic atomising device of high-efficient atomizing.
The present invention is provided with air supply pipe, closed loop, urceolus, water pipe, cavity inner core, cavity outer shroud, air jetting holes and liquid spray orifice, the gas-entered passageway of the external atomization source of the gas of suction port of described air supply pipe, the external fluid supply to be atomized of water intake of water pipe, the air outlet of air supply pipe and the water outlet of water pipe connect in the cavity of closed loop and urceolus composition, cavity inner core is provided with outside thread, cavity outer shroud is provided 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, adjustment cavity depth size, thus the atomization frequency of okperation of adjustment atomising device, guarantee that atomising device all can reach best atomizing effect under various operating mode, air jetting holes is located in the middle of the end of air supply pipe, for spraying pressurized gas, liquid spray orifice is located at around air jetting holes, for spraying liquid.
Described liquid spray orifice can be provided with 4.
Described urceolus can adopt regular hexahedron cylinder, and described cavity outer shroud can adopt regular hexahedron cylinder, and regular hexagon profile is easy to setup.
The invention discloses a kind of frequency-adjustable Pneumatic ultrasonic atomising device, supersonic gas sprays from air jetting holes, the cavity that frontal impact cavity outer shroud and cavity inner core are combined to form, under airflow function, shock train is formed between nozzle and cavity, build-up of pressure shakes strongly, ultrasound field is produced after resonating with cavity, meanwhile, liquid to be atomized is from 4 the liquid spouts ejection circumferentially of water pipe end, brin is broken for from fluid column rapidly under the strong effect of aerodynamic force and ultrasound field, final formation evenly and the minimum atomized drop of diameter, reach the object of atomization.The present invention can realize the high-efficient atomizing of liquid towards material, and according to actual conditions, kind of liquid etc., by regulating the cavity degree of depth to change ultrasonic frequency, can obtain best atomizing effect.Structure of the present invention is simple, practical.
The present invention according to actual conditions, kind of liquid etc., by regulating the cavity degree of depth to change ultrasonic frequency, thus can realize the high-efficient atomizing of plurality of liquid under various working.Utilize hypersonic air flow and cavity to resonate the ultrasound produced, can realize using a small amount of atomization gas also to obtain good atomizing effect.
Compared with traditional, pneumatic ultrasonic wave atomizing nozzle, tool of the present invention has the following advantages:
(1) cavity depth adjustable, therefore can control sound field frequency, carries out all obtaining best atomization in the process be atomized under different operating mode;
(2) due to frequency-adjustable, the atomising device that the present invention proposes can realize being atomized multiple liquid to be atomized, and operating range is wide.
Accompanying drawing explanation
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 elevation of the urceolus of the embodiment of the present invention.
Fig. 6 is the plan view of the urceolus of the embodiment of the present invention.
Fig. 7 is the front elevation of the closed loop of the embodiment of the present invention.
Fig. 8 is the plan view of the closed loop of the embodiment of the present invention.
Fig. 9 is the front elevation 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 drawing of the cavity outer shroud of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described.
As shown in Fig. 1 ~ 11, the embodiment of the present invention is provided with air supply pipe 1, closed loop 2, urceolus 3, water pipe 4, cavity inner core 5, cavity outer shroud 6, air jetting holes 7 and liquid spray orifice 8, the gas-entered passageway of the external atomization source of the gas of suction port of described air supply pipe 1, the external fluid supply to be atomized of water intake of water pipe 4, the air outlet of air supply pipe 1 and the water outlet of water pipe 4 connect in the cavity of closed loop 2 and urceolus 3 composition, cavity inner core 5 is provided with outside thread, cavity outer shroud 6 is provided with the internal thread matched with cavity inner core 5, cavity inner core 5 and cavity outer shroud 6 form cavity, by the relative position of adjustment cavity inner core 5 with cavity outer shroud 6, adjustment cavity depth size, thus the atomization frequency of okperation of adjustment atomising device, guarantee that atomising device all can reach best atomizing effect under various operating mode, air jetting holes 7 is located in the middle of the end of air supply pipe 1, for spraying pressurized gas, liquid spray orifice 8 is located at air jetting holes 7 around, for spraying liquid.
Described liquid spray orifice 8 can be provided with 4.
Described urceolus can adopt regular hexahedron cylinder, and described cavity outer shroud can adopt regular hexahedron cylinder, and regular hexagon profile is easy to setup.
Described air supply pipe 1 is the gas-entered passageway of atomization source of the gas, pressurized gas spray from air jetting holes 7 with supersonic speed after air supply pipe, the cavity that frontal impact cavity inner core 5 and cavity outer shroud 6 are combined to form, and the shock train strongly shaken is formed between air jetting holes outlet and cavity, produce the ultrasound field needed for being atomized after resonating with cavity.Described air jetting holes 7 is positioned at the end of air supply pipe 1, adopts Contraction Ducts design; Described cavity inner core 5 has outside thread, reach can require processing and fabricating according to frequency-tuning range as shown in Figure 9, described cavity outer shroud 6 has the internal thread matched with cavity inner core 5, by the relative position of adjustment cavity inner core 5 with cavity outer shroud 6, get final product simple and convenient adjustment cavity depth H size (as shown in Figure 2), thus the atomization frequency of okperation of adjustment atomising device.
Meanwhile, liquid to be atomized enters in the cavity that closed loop 2 and urceolus 3 form from water pipe 4, and from being arranged circumferentially in 4 liquid spouts 7 (as shown in Figure 3,4) ejection of air supply pipe 1 end, brin is broken for from fluid column rapidly under the strong effect of aerodynamic force and ultrasound field, final formation evenly and the minimum atomized drop of diameter, reaches the object of atomization.The present invention can realize the high-efficient atomizing of liquid towards material, and according to actual conditions, kind of liquid etc., by regulating cavity depth H to change ultrasonic frequency, can obtain best atomizing effect.
Claims (3)
1. frequency-adjustable Pneumatic ultrasonic atomising device, is characterized in that being provided with air supply pipe, closed loop, urceolus, water pipe, cavity inner core, cavity outer shroud, air jetting holes and liquid spray orifice, the gas-entered passageway of the external atomization source of the gas of suction port of described air supply pipe, the external fluid supply to be atomized of water intake of water pipe, the air outlet of air supply pipe and the water outlet of water pipe connect in the cavity of closed loop and urceolus composition, cavity inner core is provided with outside thread, cavity outer shroud is provided 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, adjustment cavity depth size, thus the atomization frequency of okperation of adjustment atomising device, guarantee that atomising device all can reach best atomizing effect under various operating mode, air jetting holes is located in the middle of the end of air supply pipe, for spraying pressurized gas, liquid spray orifice is located at around air jetting holes, for spraying liquid.
2. frequency-adjustable Pneumatic ultrasonic atomising device as claimed in claim 1, is characterized in that described liquid spray orifice is provided with 4.
3. frequency-adjustable Pneumatic ultrasonic atomising device as claimed in claim 1, it is characterized in that described urceolus adopts regular hexahedron cylinder, described cavity outer shroud adopts 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 true CN105201697A (en) | 2015-12-30 |
| CN105201697B CN105201697B (en) | 2018-06-01 |
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| 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 |
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| CN (1) | CN105201697B (en) |
Cited By (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 |
| CN107975823A (en) * | 2017-11-17 | 2018-05-01 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of ultrasonic nozzle atomising 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 (8)
| 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 |
| US20150343478A1 (en) * | 2013-07-26 | 2015-12-03 | Andrey Nikolaevich Dubrovsky | Pneumoacoustic Bar Atomizer |
| CN205089493U (en) * | 2015-11-12 | 2016-03-16 | 厦门大学 | Tunable frequency pneumatic type ultrasonic atomization device |
-
2015
- 2015-11-12 CN CN201510768147.XA patent/CN105201697B/en not_active Expired - Fee Related
Patent Citations (8)
| 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 |
| US20150343478A1 (en) * | 2013-07-26 | 2015-12-03 | Andrey Nikolaevich Dubrovsky | Pneumoacoustic Bar Atomizer |
| CN205089493U (en) * | 2015-11-12 | 2016-03-16 | 厦门大学 | Tunable frequency pneumatic type ultrasonic atomization device |
Cited By (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 |
| CN107975823A (en) * | 2017-11-17 | 2018-05-01 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of ultrasonic nozzle atomising 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 |
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| Publication number | Publication date |
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| CN105201697B (en) | 2018-06-01 |
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Granted publication date: 20180601 Termination date: 20181112 |