CN103831270A - Ultrasonic cavitation intensifying device and ultrasonic cavitation intensifying method - Google Patents

Ultrasonic cavitation intensifying device and ultrasonic cavitation intensifying method Download PDF

Info

Publication number
CN103831270A
CN103831270A CN201410103160.9A CN201410103160A CN103831270A CN 103831270 A CN103831270 A CN 103831270A CN 201410103160 A CN201410103160 A CN 201410103160A CN 103831270 A CN103831270 A CN 103831270A
Authority
CN
China
Prior art keywords
liquid
transducer
cavitation
ultrasonic
gas core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410103160.9A
Other languages
Chinese (zh)
Other versions
CN103831270B (en
Inventor
白立新
邓京军
李超
徐德龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Acoustics CAS
Original Assignee
Institute of Acoustics CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institute of Acoustics CAS filed Critical Institute of Acoustics CAS
Priority to CN201410103160.9A priority Critical patent/CN103831270B/en
Publication of CN103831270A publication Critical patent/CN103831270A/en
Application granted granted Critical
Publication of CN103831270B publication Critical patent/CN103831270B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations

Abstract

The invention relates to an ultrasonic cavitation intensifying device and an ultrasonic cavitation intensifying method. The ultrasonic cavitation intensifying device comprises an energy converter and a gas nucleus source. The energy converter is used for converting electric energy into ultrasonic waves, the ultrasonic waves enter liquid through the radiant surface of the energy converter, and then a sound field is formed in the liquid. The gas nucleus source is used for providing gas nuclei for the liquid, cavitation bubbles are formed in the liquid by the gas nuclei generated by the gas nucleus source and the gas nuclei originally existing in the liquid under the action of the sound field, and cavitation cloud is formed through cavitation bubble gathering. According to the ultrasonic cavitation intensifying device, the gas nucleus source can be placed in an ultrasonic field near the radiant surface of the energy converter, a large number of gas nuclei are continuously generated, the cavitation bubbles are formed by the gas nuclei under the action of the sound field, the cavitation cloud is generated, and therefore the cavitation effect is enhanced.

Description

Ultrasonic cavitation intensifying device and method
Technical field
The present invention relates to ultrasonic cavitation field, relate in particular to a kind of ultrasonic cavitation intensifying device and method.
Background technology
Hyperacoustic cavitation effect refers in the time that ultrasonic wave is propagated in fluid, under periodic acoustic pressure effect, occurs that a large amount of small cavitys are along with acoustic pressure constantly periodically expand and the crumble and fall phenomenon of motion in fluid.The process of liquid acoustic cavitation is concentrate sound field energy and discharge rapidly and final dynamic process of crumbling and fall at a high speed.The process time that cavity expands-crumbles and fall extremely short (in several nanoseconds between microsecond), steep temperature rise after gas pressurized in bubble, particularly crumble and fall in process at its periodic swinging, can produce TRANSIENT HIGH TEMPERATURE, high pressure, and make the medium cracking at bubble core liquid interface.This characteristic of ultrasonic cavitation provides unique environment for some chemical reactions, the chemical reaction that makes some be difficult at normal temperatures and pressures occur is occurred, and this sonochemical effect of ultrasonic cavitation has many potential application in the energy, chemical industry, medicine and other fields.But the efficiency of acoustic current chemical reactor is generally lower, less economical, and because the chip of transducer radiating surface cavitation corrosion generation may pollute processed liquid, limit thus acoustochemical large-scale industrial application.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of by providing the mode in gas core source to increase cavity number, improve cavity density, strengthen cavitation effect and avoiding the ultrasonic cavitation intensifying device of radiating surface cavitation corrosion.
For achieving the above object, the invention provides a kind of ultrasonic cavitation intensifying device, comprising:
Transducer, for converting electrical energy into ultrasonic wave, described ultrasonic wave enters into liquid by transducer radiating surface, and forms sound field in described liquid;
Gas core source, for providing gas core to described liquid, the gas core in described gas core and liquid forms cavity under the effect of described sound field in described liquid, and described cavity is assembled formation cavitation cloud.
Preferably, the average radiation sound intensity of described transducer is 2-6W/cm 2.
Preferably, the operating frequency of described transducer is 10kHz-100kHz.
Preferably, the radiating surface of described transducer is smooth radiating surface.
Preferably, described gas core source and described radiating surface spacing are 0.5-4cm.
Preferably, described device also comprises transducer protective cover, and cover is combined in outside described device, for the protection of described transducer and prevent the leakage of high-frequency high-voltage current.
Preferably, described device also comprises preventing idle load device, deenergization while presetting amount of liquid for being less than when liquid described in described device.
A kind of ultrasonic cavitation intensifying method, comprising:
Transducer converts electrical energy into ultrasonic wave, and described ultrasonic wave is to radiation in liquid;
Described ultrasonic wave forms sound field in liquid;
Gas core source provides gas core in described liquid, and the gas core in described gas core and liquid forms cavity under the effect of described sound field in described liquid, and described cavity is assembled formation cavitation cloud.
The beneficial effect that the present invention brings is: the invention provides a kind of ultrasonic cavitation intensifying device and method, by settling a gas core source near ultrasonic field transducer radiating surface, make this gas core source constantly produce a large amount of gas core, these gas cores form cavity under the effect of sound field, and generate cavitation cloud, strengthen cavitation effect with this.
Brief description of the drawings
Fig. 1 is the principle schematic of the ultrasonic cavitation intensifying device in one embodiment of the invention;
Fig. 2 is ultrasonic cavitation intensifying device front view in one embodiment of the invention;
Fig. 3 is the profile of ultrasonic cavitation intensifying device in one embodiment of the invention Fig. 2;
Fig. 4 produces the diagram of cavity for gas core source in one embodiment of the invention provides gas core;
Fig. 5 is the sound experimental data schematic diagram of ultrasonic cavitation intensifying device in one embodiment of the invention;
Fig. 6 is ultrasonic cavitation intensifying method flow chart in one embodiment of the invention.
Detailed description of the invention
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Fig. 1 is the principle schematic of the ultrasonic cavitation intensifying device in one embodiment of the invention.
As shown in Figure 1, in the present embodiment, ultrasonic cavitation device comprises transducer 101, the gentle core of transducer radiating surface 102 source 103, wherein:
Transducer 101 is for converting electrical energy into ultrasonic wave.Concrete, in the present embodiment, preferably the average radiation sound intensity of transducer 101 is 2-6W/cm 2, operating frequency is 10kHz-100kHz.Wherein, in the present embodiment, preferably the radiating surface of transducer 101 is smooth, there is no obvious flaw, and on the radiating surface of transducer 101, does not adhere to the cavitation cloud (as: Smoker, CBS etc.) of other types.
Transducer radiating surface 102 passes to liquid for the ultrasonic wave that transducer 101 is produced, and makes in the middle of the sound field of liquid in ultrasonic wave generation.In embodiment, transducer radiating surface 102 is those surfaces that transducer contacts with liquid, for the front shroud of transducer, ultrasonic vibration is passed to fluid.
Gas core source 103 is used to ultrasound-enhanced device that a large amount of gas core is provided.Concrete, in embodiment, gas core source 103 should comprise small crack as much as possible, and reduces as much as possible the interference to sound field.In the present embodiment, preferably gas core source 103 is silk screen.Wherein, the distance of silk screen and transducer radiating surface is about 0.5-4cm.In the present embodiment, preferred silk screen is as gas core source, in silk screen, there is a lot of little cracks, can provide a large amount of gas core, the ultrasonic wave that gas core produces at transducer 101 for ultrasonic cavitation intensifying device, under sound field reflecting, form cavity, a large amount of cavitys is assembled further formation cavitation cloud 104.In the present embodiment, transducer 101 converts electrical energy into ultrasonic wave and acts on liquid by transducer radiating surface 102, and in the time that gas core source is silk screen, the cavitation cloud that ultrasonic cavitation intensifying device provided by the invention produces is shaped as taper.The effect in the gas core source 103 in embodiment provided by the present invention is just to provide gas core to increase cavity number, to improve cavity density, and then strengthens cavitation effect, avoids the ultrasound-enhanced of radiating surface cavitation corrosion.
In embodiment, because liquid itself exists gas core, and gas core source is for more gas core is provided in liquid, to reach the effect of ultrasonic cavitation strengthening.
In embodiment, can also further comprise transducing protective cover, its cover is combined in described device outside, for the protection of described transducer and prevent the leakage of high-frequency high-voltage current.
Fig. 2 is ultrasonic cavitation intensifying device front view in one embodiment of the invention.
As shown in Figure 2, in the present embodiment, ultrasonic cavitation intensifying device provided by the invention has 5 faces, wherein has 5 transducers 101 on each.Wherein, the container that 5 faces form is reactor 201, and the face of reactor 201 is reactor shell 202.Transducer 101 enters the inside of reactor 101 by the housing of reactor 201, wherein flange 203 acts between transducer 101 and reactor shell 202, is closely connected between transducer 101 and reactor shell 202.Liquid enters reactor 201 from the entrance 204 of ultrasonic cavitation intensifying device lower end, under the effect of the transducer 101 on reactor 201, produces ultrasonic wave, and gas core source 103, for liquid carrying has supplied a large amount of gas core, has strengthened cavitation effect under the effect of sound field.Liquid flows out from the outlet 205 of ultrasonic cavitation intensifying device lower end.In the present embodiment, liquid is preferably the aqueous solution.
Fig. 3 is the profile of corresponding ultrasonic cavitation intensifying device in one embodiment of the invention Fig. 2.
By finding out as shown in Figure 3 the transducer 101 space annexation with reactor 201, and gas core source and 103 and the space annexation of transducer 101.Gas core source 101 is fixed in the sleeve 303 of transducer radiating surface 103 front ends.Transducer 101 is connected and sealed by flange 301 with reactor shell 302.
Fig. 4 produces the diagram of cavity for gas core source in one embodiment of the invention provides gas core.
As shown in Figure 4, the preferred silk screen in gas core source in the embodiment of the present invention, owing to there being a lot of small cracks in silk screen, a large amount of gas core can be provided in the time that silk screen is in the middle of liquid, in the middle of the ultrasonic wave sound field producing at transducer, gas core can form cavity, a large amount of cavitys is assembled and then is formed cavitation cloud, thereby has strengthened cavitation effect.Thereby the efficiency that has solved acoustic current chemical reactor is generally lower, less economical, and because the chip of transducer radiating surface cavitation corrosion generation may pollute processed liquid, limit thus the problem of acoustochemical large-scale industrial application.
Fig. 5 is the sound experimental data schematic diagram of ultrasonic cavitation intensifying device in one embodiment of the invention.
As shown in Figure 5, abscissa represents time T ime, unit minute (min), and ordinate represents the concentration of iodine 3 ions, every liter of the micromole of unit (μ M).
In the time that cavity is crumbled and fall, cavity is inner produces high temperature and pressure, and the HTHP of cavity inside makes the steam of cavity inside, and pyrolysis becomes OH with oxygen, O, H 2o 2, these ions are dissolved in water and make KI that oxidation generation iodine 3 ions occur.Therefore can utilize the phonochemistry behavior of KI KI as indicator quantification cavitation, by measuring in liquid
Figure BDA0000479238060000051
concentration can obtain the technique effect of the empty intensifying device of sound.
By following reaction:
3 I - + 2 OH → I 3 - + 2 OH -
As can be seen from Figure 5, adopt after ultrasonic cavitation intensifying device provided by the invention, identical in the situation that,
Figure BDA0000479238060000053
concentration obviously increase, show that the successful of ultrasonic cavitation strengthening strengthens.
Fig. 6 is ultrasonic cavitation intensifying method flow chart in one embodiment of the invention.
As shown in Figure 6, first in step 601, transducer converts electrical energy into ultrasonic wave to radiation in liquid.
Concrete, in an embodiment of the present invention, preferably the average radiation sound intensity of transducer 101 is 2-6W/cm 2, operating frequency is 10kHz-100kHz.Wherein, transducer radiating surface is smooth, there is no obvious flaw, makes can not adhere to the cavitation cloud (as: Smoker, CBS etc.) of other types and have influence on effect on the radiating surface of transducer 101.
In step 602 secondarily, ultrasonic wave forms sound field in liquid.
Concrete, in an embodiment of the present invention, the ultrasonic wave that transducer radiating surface produces transducer passes to liquid, makes in the middle of the sound field of liquid in ultrasonic wave generation.In embodiment, transducer radiating surface is that surface that transducer contacts with liquid, for the front shroud of transducer, ultrasonic vibration is passed to fluid.
In last step 603, gas core source provides gas core in liquid, and the gas core in gas core and liquid that gas core source provides forms cavity under the effect of sound field in liquid, and cavity is assembled formation cavitation cloud.
Concrete, in an embodiment of the present invention, because liquid itself exists gas core, and gas core source is for more gas core is provided in liquid, to reach the effect of ultrasonic cavitation strengthening.
In embodiment, gas core provided by the invention source comprises small crack as much as possible, and reduces as much as possible the interference to sound field.In the present embodiment, preferably gas core source is silk screen.Wherein, the distance of silk screen and transducer radiating surface is about 0.5-4cm.In the present embodiment, preferred silk screen is as gas core source, in silk screen, there is a lot of little cracks, can provide a large amount of gas core for ultrasonic cavitation intensifying device, the ultrasonic wave that gas core produces at transducer, under sound field reflecting, form cavity, a large amount of cavitys is assembled further formation cavitation cloud.In the present embodiment, transducer converts electrical energy into ultrasonic wave and acts on liquid by transducer radiating surface, and in the time that gas core source is silk screen, the cavitation cloud that ultrasonic cavitation intensifying device provided by the invention produces is shaped as taper.The effect in the gas core source in embodiment provided by the present invention is just to provide gas core to increase cavity number, to improve cavity density, and then strengthens cavitation effect, avoids the ultrasound-enhanced of radiating surface cavitation corrosion.
The invention provides a kind of ultrasonic cavitation intensifying device and method, by settling a gas core source near ultrasonic field transducer radiating surface, make this gas core source constantly produce a large amount of gas core, these gas cores form cavity under the effect of sound field, and generate cavitation cloud, strengthen cavitation effect with this.
Professional should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software is clearly described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can realize described function with distinct methods to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random access memory (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (8)

1. a ultrasonic cavitation intensifying device, is characterized in that, described device comprises:
Transducer, for converting electrical energy into ultrasonic wave, described ultrasonic wave enters into liquid by transducer radiating surface, and forms sound field in described liquid;
Gas core source, for providing gas core to described liquid, the gas core in described gas core and liquid forms cavity under the effect of described sound field in described liquid, and described cavity is assembled formation cavitation cloud.
2. ultrasonic cavitation intensifying device as claimed in claim 1, is characterized in that, the average radiation sound intensity of described transducer is 2-6W/cm 2.
3. ultrasonic cavitation intensifying device as claimed in claim 1, is characterized in that, the operating frequency of described transducer is 10kHz-100kHz.
4. ultrasonic cavitation intensifying device as claimed in claim 1, is characterized in that, the radiating surface of described transducer is smooth radiating surface.
5. ultrasonic cavitation intensifying device as claimed in claim 1, is characterized in that, described gas core source and described radiating surface spacing are 0.5-4cm.
6. ultrasonic cavitation intensifying device as claimed in claim 1, is characterized in that, described device also comprises transducer protective cover, and cover is combined in outside described device, for the protection of described transducer and prevent the leakage of high-frequency high-voltage current.
7. ultrasonic cavitation intensifying device as claimed in claim 1, is characterized in that, described device also comprises preventing idle load device, deenergization while presetting amount of liquid for being less than when liquid described in described device.
8. a ultrasonic cavitation intensifying method, is characterized in that, comprising:
Transducer converts electrical energy into ultrasonic wave, and described ultrasonic wave is to radiation in liquid;
Described ultrasonic wave forms sound field in liquid;
Gas core source provides gas core in described liquid, and the gas core in described gas core and liquid forms cavity under the effect of described sound field in described liquid, and described cavity is assembled formation cavitation cloud.
CN201410103160.9A 2014-03-19 2014-03-19 Ultrasonic cavitation intensifying device and method Active CN103831270B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410103160.9A CN103831270B (en) 2014-03-19 2014-03-19 Ultrasonic cavitation intensifying device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410103160.9A CN103831270B (en) 2014-03-19 2014-03-19 Ultrasonic cavitation intensifying device and method

Publications (2)

Publication Number Publication Date
CN103831270A true CN103831270A (en) 2014-06-04
CN103831270B CN103831270B (en) 2015-12-02

Family

ID=50795344

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410103160.9A Active CN103831270B (en) 2014-03-19 2014-03-19 Ultrasonic cavitation intensifying device and method

Country Status (1)

Country Link
CN (1) CN103831270B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104128328A (en) * 2014-07-24 2014-11-05 中国科学院声学研究所 Jetting and nucleus supplementing ultrasonic cavitation device and method
CN108160601A (en) * 2017-12-13 2018-06-15 厦门建霖健康家居股份有限公司 A kind of method for suppersonic cleaning
CN109628729A (en) * 2019-02-21 2019-04-16 北京理工大学 Closed high energy elastic wave abatement and homogenizing component residual stress device
CN110522992A (en) * 2019-07-22 2019-12-03 西安交通大学 The phase transformation nano-liquid droplet for focusing vortex sound field based on spatial non-uniform regulates and controls method
CN110802522A (en) * 2019-09-23 2020-02-18 中国科学院宁波材料技术与工程研究所 Ultrasonic cavitation shot blasting device and using method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108722326B (en) * 2018-08-07 2020-04-03 深圳市蓓媞科技有限公司 Vibration assembly, beauty device with vibration assembly and using method of beauty device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1546219A (en) * 2003-11-28 2004-11-17 戴露雯 Ultrasonic focusing processing unit
CN101342473A (en) * 2008-08-26 2009-01-14 严卓晟 Ultrasonic processor
JP2009101299A (en) * 2007-10-24 2009-05-14 Fuji Xerox Co Ltd Micro nano-bubble generation method, washing method for micro-flow passage, micro nano-bubble generation system, and micro-reactor
JP2011078894A (en) * 2009-10-06 2011-04-21 Toshiba Corp Washing method using ultrasonic cavitation
CN203862615U (en) * 2014-03-19 2014-10-08 中国科学院声学研究所 Ultrasonic cavitation strengthening device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1546219A (en) * 2003-11-28 2004-11-17 戴露雯 Ultrasonic focusing processing unit
JP2009101299A (en) * 2007-10-24 2009-05-14 Fuji Xerox Co Ltd Micro nano-bubble generation method, washing method for micro-flow passage, micro nano-bubble generation system, and micro-reactor
CN101342473A (en) * 2008-08-26 2009-01-14 严卓晟 Ultrasonic processor
JP2011078894A (en) * 2009-10-06 2011-04-21 Toshiba Corp Washing method using ultrasonic cavitation
CN203862615U (en) * 2014-03-19 2014-10-08 中国科学院声学研究所 Ultrasonic cavitation strengthening device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104128328A (en) * 2014-07-24 2014-11-05 中国科学院声学研究所 Jetting and nucleus supplementing ultrasonic cavitation device and method
CN108160601A (en) * 2017-12-13 2018-06-15 厦门建霖健康家居股份有限公司 A kind of method for suppersonic cleaning
CN108160601B (en) * 2017-12-13 2020-03-06 厦门建霖健康家居股份有限公司 Ultrasonic cleaning method
CN109628729A (en) * 2019-02-21 2019-04-16 北京理工大学 Closed high energy elastic wave abatement and homogenizing component residual stress device
CN109628729B (en) * 2019-02-21 2021-02-19 北京理工大学 Closed high-energy elastic wave eliminating and homogenizing member residual stress device
CN110522992A (en) * 2019-07-22 2019-12-03 西安交通大学 The phase transformation nano-liquid droplet for focusing vortex sound field based on spatial non-uniform regulates and controls method
CN110522992B (en) * 2019-07-22 2021-02-19 西安交通大学 Phase-change nano-droplet regulation and control method based on spatial non-uniform focusing vortex sound field
CN110802522A (en) * 2019-09-23 2020-02-18 中国科学院宁波材料技术与工程研究所 Ultrasonic cavitation shot blasting device and using method thereof

Also Published As

Publication number Publication date
CN103831270B (en) 2015-12-02

Similar Documents

Publication Publication Date Title
CN103831270B (en) Ultrasonic cavitation intensifying device and method
CN203862615U (en) Ultrasonic cavitation strengthening device
Meroni et al. Sonoprocessing: from concepts to large-scale reactors
Merouani et al. Energy analysis during acoustic bubble oscillations: Relationship between bubble energy and sonochemical parameters
Son et al. Geometric and operational optimization of 20-kHz probe-type sonoreactor for enhancing sonochemical activity
Xu et al. Numerical simulation of liquid velocity distribution in a sonochemical reactor
Rahimi et al. Experimental investigation on proper use of dual high-low frequency ultrasound waves—Advantage and disadvantage
Wu et al. Acoustic emission monitoring for ultrasonic cavitation based dispersion process
CN103280213B (en) Turbulence resonance fluid sounder
Bandelin et al. Cavitation field analysis for an increased efficiency of ultrasonic sludge pre-treatment using a novel hydrophone system
Zhang et al. Influences of bubble size distribution on propagation of acoustic waves in dilute polydisperse bubbly liquids
CN104128328A (en) Jetting and nucleus supplementing ultrasonic cavitation device and method
CN203763883U (en) Ultrasonic-wave scale-prevention and scale-removing plate tower
CN101844824A (en) Multifunctional magnetic super-processor
CN101693234A (en) Micropore ultrasonic plugging method
Draye et al. Organic sonochemistry: ultrasound in green organic synthesis
Chitnis et al. Mitigation of damage to solid surfaces from the collapse of cavitation bubble clouds
WO2001039199A3 (en) Enhancing electrolytic cavitation reactions
CN103936099A (en) Hydraulic multi-frequency ultrasonic generator
Laajimi et al. Numerical investigation of the ultrasound-assisted biodiesel transesterification with a polyalcohol
CN206868731U (en) A kind of welding wire ultrasonic wave water washing groove
CN203300212U (en) Turbulent flow resonance fluid sounder
Mutasa et al. Ultrasonic wave propagation in cylindrical vessels and implications for ultrasonic reactor design
Watbled et al. Design and characterization of a multi-frequency semi-pilot ultrasonic reactor: Application to the extraction and oxidation of flaxseed-gum
Wang et al. Three-dimensional simulation of ultrasound-induced microalgal cell disruption

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant