CN105149288A - Method for cleaning article through variable frequency ultrasound - Google Patents
Method for cleaning article through variable frequency ultrasound Download PDFInfo
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- CN105149288A CN105149288A CN201510677425.0A CN201510677425A CN105149288A CN 105149288 A CN105149288 A CN 105149288A CN 201510677425 A CN201510677425 A CN 201510677425A CN 105149288 A CN105149288 A CN 105149288A
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- frequency ultrasound
- ultrasonic
- ultrasound
- water
- ultrasonic wave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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Abstract
The invention discloses a method for cleaning an article through variable frequency ultrasound. The method comprises the steps that firstly, the whole article is wetted through a water spraying machine to be roughly cleaned; the article is put into a water storage chamber after being cleaned to be steeped by water, and the water storage chamber is put into an ultrasonic chamber; a variable frequency ultrasound generator is used for generating ultrasound, it is noticed that the variable frequency ultrasound generator can generated ultrasound with different frequencies so that dust impurities and microorganisms in all frequencies can be subjected to resonance oscillation with the ultrasound, and thus the dust removing and sterilizing effects are better; finally, the article is put into a washing chamber to be washed, and residual stains on the article are removed.
Description
Technical field
The present invention relates to and utilize ultrasonic wave scrubbing sterilization field, particularly a kind of method utilizing variable-frequency ultrasound to clean object.
Background technology
Eighties of last century twenties, first Richard and Loomis of the U.S. study and find that ultrasonic wave can accelerate chemical reaction, but do not cause the attention of chemists for a long time.Until the universal and development of the mid-80 large power supersonic equipment, the application of ultrasonic wave in chemical industry develops rapidly, and creates new interdisciplinary science, phonochemistry.1986, for the first time about the international symposium of sonochemistry holds, ultrasonic application study caused interest widely.After this, the application development of ultrasonic radiation in organic synthesis is also very fast.Compared with traditional methodology of organic synthesis, ultrasonic synthetic method is simple to operate, reaction condition is gentle, the reaction time shortens, reaction yield improves, and even can cause the reaction that some can not carry out under conventional conditions.
Ultrasonic wave is not the direct interaction coming from sound wave and reactant molecule to the facilitation of chemical reaction, because wave length of sound conventional is in a liquid far longer than molecular scale.Why ultrasonic wave produces chemical effect, a generally accepted viewpoint is cavitation phenomenon, namely be present in the micro-bubble in liquid to be activated under the effect of ultrasonic field, show as a series of dynamic processes such as the formation of complex, vibration, growth, contraction and even collapse, and the physics and chemistry effect caused.Bubble collapses suddenly within a few microsecond, and bubbles burst is similar to the blast process of, produces extremely of short duration high-energy environment, produces high temperature, the high pressure of local thus.The time of this localized hyperthermia, high pressure existence is very short simultaneously, and only have a few microsecond, so the rate of change of temperature is very large, this provides a kind of very special environment with regard to the chemical reaction for being under general condition difficult to realize maybe can not realizing.Hot conditions is conducive to the cracking of reaction species and the formation of free radical, improves chemical reaction rate.High pressure is conducive to the reaction in gas phase; On the other hand, while bubbles burst produces high pressure, the also shock wave of accompanied by intense, its speed can reach the microjet of 100m/s, the heterogeneous system of participating in for there being solid serves good percussion, cause intermolecular strong mutual collision and gathering, very important effect is produced to surface of solids form, surface composition.Therefore cavitation can be regarded as and assemble a kind of form of acoustic energy, can HTHP in micro-scale in analogue reactor, promotes the carrying out of reaction.
A lot of organic reaction is carried out in homogeneous phase solution, in this type of reaction, not only containing the steam that liquid itself produces in the bubble formed in ultrasonic cavitation process, and containing being dissolved in the gas of liquid.During cavitation bubble collapse, the energy of generation can cause the fracture of key, promotes the generation of free radical, changes structure in solvent thus affects reaction speed.In solid, liquid heterogeneous reaction, ultrasonic effect is in the liquid phase the same with in homogeneous phase, but relevant with interfacial property in the effect at boundary place.Due to the scrambling of solid, the hole produced near solid is made to be aspherical, when they collapse, fluid around carrys out filling hole rapidly, thus form the microjet rushing at the surface of solids, it flows to the surface of solids with the speed of hundreds of metre per second (m/s), and this microjet can play the effect on activating catalyst surface.On the one hand, microjet plays cleaning action, degrades the oxide layer of metallic and greatly improves catalyst activity; On the other hand, microjet can make the catalytic component of dipping enter in carrier hole, when energy is enough, solids even can be made chipping, to this system, ultrasonicly mainly increases the surface area of reaction and the mass transfer of the surface of solids.
The ultrasonic topmost reason of invigoration effect to extraction is cavitation effect, namely the micro-bubble in liquid is present in, be activated under the effect of ultrasonic field, show as the formation of complex, vibration, growth, a series of dynamic processes such as contraction and even collapse, and the physics and chemistry effect caused. bubble collapses suddenly within a few microsecond, the hot localised points up to more than 5000K can be formed, pressure can reach tens of and even up to a hundred MPas, along with the release of high pressure, form powerful shock wave (homogeneous phase) or high-speed jet (heterogeneous) in a liquid, its speed can reach 100m/s.The mechanical effect such as microjet, shock wave with ultrasonic cavitation generation exacerbates the less turbulence of system, accelerates mutually alternate mass transfer velocity.Meanwhile, impingement flow produces a kind of physical shear power to animal and plant cells tissue, makes it distortion, breaks and discharge inclusion, thus promotes the stripping of active ingredient in cell.In addition, hyperacoustic heat effect and mechanism also can promote that intensified by ultrasonic wave extracts.Ultrasonic wave its energy in medium particle communication process is constantly absorbed by medium particle and becomes heat energy, causes medium particle temperature to raise, accelerates the dissolving of active ingredient.Hyperacoustic mechanism when mainly ultrasonic wave is propagated in media as well, the wave surface that it is propagated will cause alternate compression and the elongation of medium particle, make medium particle movement, thus obtain huge acceleration and kinetic energy.Huge accelerated energy promotes that solvent enters people's extract cell, strengthens mass transport process, active ingredient is overflowed rapidly.
Grease is extracted in ultrasonic field strengthening can make leaching efficiency significantly improve, oil quality can also be improved, economize in raw materials, increasing the extracted amount of oil. it is extraction method that the extraction of vegetable fat uses maximum at present. ultrasonic technique is applied in extraction method as a kind of supplementary means, oil cell can be made more easily to break, and grease molecules more easily discharges, and improves extraction efficiency, but also the physiologically active ingredient in vegetable oil can be made to be kept, improve the nutritive value of grease.Ultrasound-enhanced extraction has certain influence to the composition of aliphatic acid in Semen Juglandis oil, and under ultrasound-enhanced condition, the relative amount of total unrighted acid increases. and ultrasonic wave also can be used for the processing of animal oil.The extraction of animal fat uses the method for tempering usually.Temper method oil yield low, and temper overlong time, partial fat decomposition can be made to cause spoiled by rancid oil or fat, temper too high easily the making of temperature and organize coking, affect the sensory properties of product.Use ultrasonic extraction method not only can shorten extraction time, improve oil yield, and inner vitamin can also be made to exempt from destruction.Find when using the ultrasonic wave of different frequency to extract cod-liver oil, grease can be made in 2 ~ 5min all to dissociate out, and oil yield is close to the oil content of raw material, and grease is limpid without residue.
Hyperacoustic cavitation phenomenon can accelerate the stripping of active ingredient in cell, hyperacoustic second order effect, as mechanical oscillation, emulsification, diffusion etc. also can be accelerated the dispersal events of active ingredient in cell and make it fully mix with solvent, to be convenient to extract. microwave is as a kind of electromagnetic wave, there is electromagnetic reflection, transmission and carry out the characteristics such as Energy Transfer with electromagnetic wave, under general conditions, microwave can penetrate some material easily, also can be absorbed by some dielectric materials and produce heat.Ultrasonic wave one microwave synergistic extraction new technology combines ultrasonic with microwave two kinds of modes of action, make full use of the cavitation of ultrasonic wave vibration and the high energy effect of microwave, overcome the deficiency of conventional ultrasound and microwave abstracting, under achieving low-temperature atmosphere-pressure conditions environmental, solid sample is carried out fast, efficient, pretreatment reliably.Compared with conventional extraction process, this device is except speed is fast, energy consumption is little, solvent load is little, except rate of recovery advantages of higher, also help the extraction of polarity and thermal instability component, avoid the decomposition that extraction or synthetic reaction cause under long-time high-temperature and high-pressure conditions, thus do not destroy the structure of extracted organic molecule.
From 20th century the mid-80s, substantially stop producing electron tube or thyristor supersonic generator, then instead of electron tube with high-power high-frequency switch transistor.Amplifier form is main mainly with self-excitation class half-bridge or full-bridge greatly, and separated exciting high power module amplifier also constantly occurs.All be provided with automatic frequency tracking, overvoltage, overcurrent, phase difference protection circuit in many circuit, part is also provided with coupling indicating circuit.Recently also develop the self-adjusting micro-processor controlled supersonic generators of parameter energy such as frequency, power, protection level, power ultrasonic equipment is a a progressive step again towards automation road.Current China power ultrasonic generator has developed frequency from tens kilo hertzs to several megahertz, and power, from tens watts to tens kilowatts, is applied on all kinds of ultrasonic equipment.
Compared with other clean, ultrasonic cleaning has that efficiency is high, quality good, dirt in complex parts capable of washing, deep hole, blind hole and slit, and is easy to realize cleaning automation.Along with Chinese national economy further develops, it must become the indispensable a kind of process meanses of department such as much industry, medical treatment, environmental protection, it is one of topmost application of power ultrasonic, ultrasonic cleaning develops into multi-cylinder automatically clean continuously from single cylinder cleaning, ultrasonicly adds gas phase and liquid phase cleaning.Ultrasonic cleaning electrical power develops into tens kilowatts from a few hectowatt, frequency brings up to more than 1MHz high frequency from 15kHz low frequency, high frequency jet cleaning is different from low frequency Cleaning principle, it is the promotion by high frequency pressure waves, make dirt particles wash from its basal surface, be widely used in the cleaning of the ultra micro such as silicon wafer, IC chip dirt molecule.Along with the standardization of ultrasonic vibrating plate over nearly 10 years, application is more and more flexible, the phenomenon that the transducer that the application of bolt welding machine solves splicing comes off from cylinder bottom, substantially increases the washer life-span.Recent multifrequency cleaning, frequency sweep cleaning make sound field homogenising, further increase cleaning performance.Various Novel washing solvent is released, and has promoted the application of ultrasonic cleaning.
Summary of the invention
In industrial production and even daily life, we need clean object, but effect is not very desirable, as automobile washing field, are difficult to each dead angle of automobile to clean out.The dirty water decontamination handles that industrial production is discharged, through purifying layer by layer, be still difficult to exclude heavy metal ion residual in waste water, cleaning clothes in daily life, be stained with the very difficult cleanings such as oil stain, therefore all be unable to do without clean object in work, life, production, consumption every field.Therefore, the object of the invention is to propose a kind of method utilizing variable-frequency ultrasound to clean object.
For reaching this object, the present invention by the following technical solutions:
Utilize variable-frequency ultrasound to clean a method for object, comprising: sprinkler, reservoir chamber, sonication chamber, variable-frequency ultrasound wave producer, rinse chamber wash etc.
We know when ultrasonic intensity is weak, can produce negative pressure to water, at this moment can produce countless tiny bubbles in water, when ultrasonic intensity is strong, produce malleation to water again, therefore countless tiny bubbles breaks, the great shock wave of each bubbles burst meeting produce power, energy large like this can destroy organic impurities structure and its charged characteristic, make it condense for floccule, easily clear up, there is cyto-architectural microorganism simultaneously and be also unable to escape this misfortune, microorganism is destructurized, thus kills bacterium.Therefore, first soak whole object with sprinkler, carry out rough cleaning, after cleaning, object is put into reservoir chamber, thus object is immersed in water, put reservoir chamber into sonication chamber, utilize variable-frequency ultrasound wave producer to produce ultrasonic wave, notice that variable-frequency ultrasound wave producer can produce the ultrasonic wave of different frequency, therefore, make to be in the dust foreign material within all frequencies, microorganism and ultrasonic wave generation resonance, such dedusting removal of impurities bacteria-eliminating efficacy is better.Finally object is put into and rinse chamber wash and clean, remove the residual stain remained on object.
Detailed description of the invention
Technical scheme of the present invention is further illustrated below by detailed description of the invention.
Embodiment 1
When ultrasonic intensity is weak, negative pressure can be produced to water, at this moment can produce countless tiny bubbles in water, when ultrasonic intensity is strong, produce malleation to water again, therefore countless tiny bubbles breaks, the great shock wave of each bubbles burst meeting produce power, energy large like this can destroy organic impurities structure and its charged characteristic, make it condense for floccule, easily clear up, there is cyto-architectural microorganism simultaneously and be also unable to escape this misfortune, microorganism is destructurized, thus kills bacterium.First soak whole object with sprinkler, carry out rough cleaning, after cleaning, object is put into reservoir chamber, thus object is immersed in water, put reservoir chamber into sonication chamber, utilize variable-frequency ultrasound wave producer to produce ultrasonic wave, notice that variable-frequency ultrasound wave producer can produce the ultrasonic wave of different frequency, therefore, make to be in the dust foreign material within all frequencies, microorganism and ultrasonic wave generation resonance, such dedusting removal of impurities bacteria-eliminating efficacy is better.Finally object is put into and rinse chamber wash and clean, remove the residual stain remained on object.The field such as the present invention can be used for clothes washing, sewage purification, automobile washing, chemical industry equipment are kept a public place clean.
Claims (3)
1. the method utilizing variable-frequency ultrasound to clean object, comprise: sprinkler, reservoir chamber, sonication chamber, variable-frequency ultrasound wave producer, rinse chamber wash etc., it is characterized in that, ultrasonic wave makes to produce countless tiny bubbles in water, and bubble can be broken by ultrasonic shake thus produce extreme shock ripple, dust charged characteristic and physical arrangement in water can be changed, and microbial cell structure can be changed, to kill bacterium.
2. a kind of method utilizing variable-frequency ultrasound to clean object according to claim 1, is characterized in that, utilize ultrasonic wave frequency conversion, makes to be in the dust foreign material within all frequencies, microorganism and ultrasonic wave generation resonance, strengthening supersonic wave decontamination ability.
3. a kind of method utilizing variable-frequency ultrasound to clean object according to claim 1, is characterized in that, object, after ul-trasonic irradiation, is rinsed by clear water and washed to reach thoroughly clean object.
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| CN201510677425.0A CN105149288A (en) | 2015-10-19 | 2015-10-19 | Method for cleaning article through variable frequency ultrasound |
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| CN201510677425.0A CN105149288A (en) | 2015-10-19 | 2015-10-19 | Method for cleaning article through variable frequency ultrasound |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377534A (en) * | 2017-07-20 | 2017-11-24 | 南京理工大学 | A kind of variant-frequency vibration dust arrester based on transducer |
| CN107413762A (en) * | 2017-09-06 | 2017-12-01 | 沈阳中科腐蚀控制工程技术有限公司 | A kind of nuclear facilities ultrasonic electrochemical radioactive pollution decontamination plant and method |
| CN109946929A (en) * | 2019-04-12 | 2019-06-28 | 江苏汇成光电有限公司 | A kind of IC chip photoresist removal device and technique |
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| JPH08108157A (en) * | 1994-10-13 | 1996-04-30 | Sony Corp | Ultrasonic washer |
| US5656095A (en) * | 1993-10-28 | 1997-08-12 | Honda Electronic Co., Ltd. | Ultrasonic washing method and apparatus using continuous high frequency ultrasonic waves and intermittent low frequency ultrasonic waves |
| US6019852A (en) * | 1997-10-31 | 2000-02-01 | Pedziwiatr; Michael P. | Ultrasonic cleaning method in which ultrasonic energy of different frequencies is utilized simultaneously |
| CN101143363A (en) * | 2007-09-25 | 2008-03-19 | 鄞云光 | Ultrasonic multi-frequency cleaning machine |
| CN202638798U (en) * | 2012-05-25 | 2013-01-02 | 王慧文 | Ultrasonic energy-saving control system for pipeline and central air conditioning system |
| CN103521470A (en) * | 2013-10-23 | 2014-01-22 | 赵红军 | Bearing integrated maintaining device and method |
| CN203484379U (en) * | 2013-09-07 | 2014-03-19 | 国家电网公司 | Combined ultrasonic cleaning device |
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2015
- 2015-10-19 CN CN201510677425.0A patent/CN105149288A/en active Pending
Patent Citations (7)
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| US5656095A (en) * | 1993-10-28 | 1997-08-12 | Honda Electronic Co., Ltd. | Ultrasonic washing method and apparatus using continuous high frequency ultrasonic waves and intermittent low frequency ultrasonic waves |
| JPH08108157A (en) * | 1994-10-13 | 1996-04-30 | Sony Corp | Ultrasonic washer |
| US6019852A (en) * | 1997-10-31 | 2000-02-01 | Pedziwiatr; Michael P. | Ultrasonic cleaning method in which ultrasonic energy of different frequencies is utilized simultaneously |
| CN101143363A (en) * | 2007-09-25 | 2008-03-19 | 鄞云光 | Ultrasonic multi-frequency cleaning machine |
| CN202638798U (en) * | 2012-05-25 | 2013-01-02 | 王慧文 | Ultrasonic energy-saving control system for pipeline and central air conditioning system |
| CN203484379U (en) * | 2013-09-07 | 2014-03-19 | 国家电网公司 | Combined ultrasonic cleaning device |
| CN103521470A (en) * | 2013-10-23 | 2014-01-22 | 赵红军 | Bearing integrated maintaining device and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377534A (en) * | 2017-07-20 | 2017-11-24 | 南京理工大学 | A kind of variant-frequency vibration dust arrester based on transducer |
| CN107413762A (en) * | 2017-09-06 | 2017-12-01 | 沈阳中科腐蚀控制工程技术有限公司 | A kind of nuclear facilities ultrasonic electrochemical radioactive pollution decontamination plant and method |
| CN109946929A (en) * | 2019-04-12 | 2019-06-28 | 江苏汇成光电有限公司 | A kind of IC chip photoresist removal device and technique |
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Application publication date: 20151216 |