CN203220994U - Low-frequency ultrasonic atomization device with droplet controllable - Google Patents
Low-frequency ultrasonic atomization device with droplet controllable Download PDFInfo
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- CN203220994U CN203220994U CN 201320214220 CN201320214220U CN203220994U CN 203220994 U CN203220994 U CN 203220994U CN 201320214220 CN201320214220 CN 201320214220 CN 201320214220 U CN201320214220 U CN 201320214220U CN 203220994 U CN203220994 U CN 203220994U
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Abstract
The utility model discloses a low-frequency ultrasonic atomization device with a droplet controllable. The low-frequency ultrasonic atomization device with the droplet controllable comprises an ultrasonic transducer, an amplitude-change pole, a micropore atomization head, and an ultrasonic generator. The ultrasonic transducer is vertically arranged, and a transducer radiating surface faces upwards. The amplitude-change pole is vertically arranged above the ultrasonic transducer, an amplitude-change pole coupling surface is connected with the transducer radiating surface of the ultrasonic transducer in a rigid mode, and the amplitude-change pole radiating end surface faces upwards. The micropore atomization head is detachably fixed on the amplitude-change pole radiating end surface of the amplitude-change pole. The ultrasonic generator is electrically connected with the ultrasonic transducer. A liquid feeding channel is formed in the amplitude-change pole radiating end surface of the amplitude-change pole. The low-frequency ultrasonic atomization device with the droplet controllable can overcome the defects that the adjustability of the atomization amount and the adjustability of the diameter range of the droplet are poor, and the working temperature is not reliable in the prior art, and therefore the low-frequency ultrasonic atomization device with the droplet controllable can have the advantages of being good in adjustability of the atomization amount and adjustability of the diameter range of the droplet, reliable in working temperature and low in cost.
Description
Technical field
The utility model relates to industrial or agricultural atomization plant technical field, particularly, relate to the controlled low-frequency ultrasonic atomizing device of a kind of droplet, can be applicable to: air wetting, nebulization dust, preparation of granules, aerial fog cultivation, coating atomizing, atomizing cooling, atomizing are combustion-supporting, nebulae inhalation etc.
Background technology
The ultrasonic atomizatio technology, a kind of means as physics atomizing relatively have been widely used in industrial and agricultural production and daily life, as ultrasonic humidifier etc.The principle of ultrasonic atomizatio technology is directly to utilize the ultrasonic wave of high-frequency generator generation with the atomization of liquid.
The computing formula of droplet size is:
In formula ⑴, D is liquid-drop diameter, and T is liquid surface tension coefficient, and ρ is fluid density, and f is frequency of sound wave.By formula ⑴ as can be seen, for the liquid of determining, that can regulate fogdrop diameter has only parameter of f, and droplet is more little, requires frequency just more high.
Being example with existing ultrasonic humidifier, generally all is to adopt thickness vibration mode, calculates the droplet size according to above-mentioned formula ⑴.Like this, if will produce 1 micron droplet, then need the thickness of transducer piezoelectric patches to be about 0.3 millimeter.Obviously, from the intensity of processing technology and transducer itself and the acoustical power angle that can bear, all there is bigger difficulty.
In realizing process of the present utility model, defective such as the inventor finds to exist at least in the prior art atomization quantity and fogdrop diameter scope adjustability is poor and operating temperature is unreliable.
The utility model content
The purpose of this utility model is, at the problems referred to above, proposes the controlled low-frequency ultrasonic atomizing device of a kind of droplet, to realize atomization quantity amount and the advantage that fogdrop diameter scope adjustability is good, operating temperature is reliable and cost is low.
For achieving the above object, the technical solution adopted in the utility model is: the low-frequency ultrasonic atomizing device that a kind of droplet is controlled, comprise the ultrasonic transducer that vertical setting and transducer radiating surface make progress, the transducer radiating surface that vertically is arranged on described ultrasonic transducer top, luffing bar coupling surface and ultrasonic transducer be rigidly connected and luffing bar spoke side towards last luffing bar, the detachable micropore atomization head that is fixedly installed on the luffing bar radiation end face of described luffing bar, and the ultrasonic generator that is electrically connected with described ultrasonic transducer; Luffing bar radiation end face at described luffing bar is provided with the outlet of liquid feed channels.
Further, be set with the micropore atomization expanded metals in a side of the nearly luffing bar of described micropore atomization head rest, described micropore atomization expanded metals is positioned at the geometric center of micropore atomization head, and described micropore atomization expanded metals closely contacts with the luffing bar radiation end face of luffing bar.
Further, between described micropore atomization expanded metals and luffing bar, be connected by set bolt, hold-down nut and the luffing bar ring flange that is equipped with successively.
Further, between described ultrasonic generator and the ultrasonic transducer, connect by cable.
Further, the transducer radiating surface of described ultrasonic transducer, rigidly connected by the luffing bar coupling surface of connecting bolt and luffing bar.
Further, the outlet of described liquid feed channels is positioned at the geometric center of the luffing bar radiation end face of luffing bar; Described liquid feed channels comprises L shaped liquid feed channels.
Further, described luffing bar is the physics cumulative shape that comprises notch cuttype or taper shape or suspension wire type; The area of the luffing bar coupling surface of luffing bar is far longer than the area of luffing bar radiation end face.
Further, the length of described luffing bar is the integral multiple of half-wavelength.
Further, described ultrasonic transducer comprises PZT (piezoelectric transducer), perhaps adopts nickel, Ferrite Material magnetostrictive transducer processed, perhaps rare earth material giant magnetostrictive transducer processed.
Further, described ultrasonic transducer has the half-wavelength structure.
The low-frequency ultrasonic atomizing device that the droplet of each embodiment of the utility model is controlled, owing to comprise the ultrasonic transducer that vertical setting and transducer radiating surface make progress, the transducer radiating surface that vertically is arranged on ultrasonic transducer top, luffing bar coupling surface and ultrasonic transducer be rigidly connected and luffing bar spoke side towards last luffing bar, the detachable micropore atomization head that is fixedly installed on the luffing bar radiation end face of luffing bar, and the ultrasonic generator that is electrically connected with ultrasonic transducer; Luffing bar radiation end face at the luffing bar is provided with liquid feed channels; Can utilize ultrasonic transducer, with ultrasonic vibrational energy, be passed to luffing bar radiation end face by the luffing bar, atomising head microcellular structure expanded metals is closely contacted with luffing bar radiation end face, produce resonance, make the liquid of flowing through between radiation end face and the microcellular structure expanded metals, produce ultrasonic atomizatio and secondary-atomizing, thereby produce trickle droplet; By changing the micropore atomization head, can obtain the droplet of different size particles; The size of the flow by the control size of ultrasonic power and liquid can be regulated atomization quantity; Be difficult for the poor and insecure defective of operating temperature of atomizing, atomization quantity and fogdrop diameter scope adjustability thereby can overcome the liquid that has in the prior art, with realize that aerosolizable liquid is wide in variety, atomization quantity and fogdrop diameter scope adjustability is good, operating temperature is reliable and cost is low advantage.
Other features and advantages of the utility model will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the utility model.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Accompanying drawing is used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with embodiment one of the present utility model, does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the controlled low-frequency ultrasonic atomizing device of the utility model droplet.
By reference to the accompanying drawings, Reference numeral is as follows among the utility model embodiment:
The 1-ultrasonic generator; The 2-ultrasonic transducer; The 3-connecting bolt; 4-luffing bar; 5-luffing bar radiation end face; 6-micropore atomization head; 7-microcellular structure expanded metals; 8-luffing bar ring flange; The 9-fastening bolt; The 10-clamp nut; The 11-liquid feed channels; 12-transducer radiating surface; 13-luffing bar coupling surface; The 14-cable.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
⑴ knows by formula, in case liquid is determined, then the surface tension coefficient of liquid and density are certain, the droplet for preparing thinner (being that diameter is littler) if desired, then must improve frequency of ultrasonic, but be subject to the physical size of piezoelectric ceramics, rare earth or other magnetostriction materials, can't unrestrictedly improve the frequency of sound wave.So to the liquid of determining, the size of its atomizing particle must have a limit area; Simultaneously, because the restriction of physical size, the power limited of single Vltrasonic device has also just limited the size of atomization quantity; Moreover the liquid of differential tension coefficient and density also directly influences sound wave to the fogging degree of liquid.
Known to formula ⑴, the surface tension coefficient T of liquid is the key factor that influences droplet size and fogging degree.For addressing this problem, the utility model proposes the controlled low-frequency ultrasonic atomizing device of droplet, utilize namely that high power low-frequency is ultrasonic to prepare trickle droplet.And for formula ⑴, frequency is more low, and fogdrop diameter D is just more big.The technology that solves this contradiction is: on the one hand, utilize low frequency to strengthen ultrasonic wave at the amplitude of luffing rod end surface, greatly destroy the resistance that surface tension of liquid causes, make the easier atomizing of liquid; On the other hand, utilize microcellular structure, the generation of restriction bulky grain liquid mist, and produce secondary-atomizing.
Concrete way is, utilize ultrasonic transducer, with ultrasonic vibrational energy, be passed to luffing bar radiation end face by the luffing bar, atomising head microcellular structure expanded metals is closely contacted with luffing bar radiation end face, produce resonance, make the liquid of flowing through between radiation end face and the microcellular structure expanded metals, produce ultrasonic atomizatio and secondary-atomizing, thereby produce trickle droplet; And, by changing the micropore atomization head, can obtain the droplet of different size particles; By the size of control ultrasonic power and the flow size of liquid, can regulate atomization quantity.In a word, take full advantage of the advantage of low frequency large amplitude, can realize easily the atomizing that different surfaces coefficient of tension liquid carries out is in various degree handled.Ultrasonic transducer generally adopts the half-wavelength structure, and the luffing bar can adopt the integral multiple of half-wavelength, and it is consistent with the frequency of institute's connection ultrasonic transducer and ultrasonic generator that the design frequency of luffing bar should keep.
Particularly, according to the utility model embodiment, as shown in Figure 1, provide a kind of droplet controlled low-frequency ultrasonic atomizing device, can regulate atomization quantity size and fogdrop diameter scope, operating temperature is reliable, and cheap.
Referring to Fig. 1, the low-frequency ultrasonic atomizing device that the droplet of present embodiment is controlled, comprise ultrasonic generator 1, ultrasonic transducer 2, luffing bar 4 and micropore atomization head 6, the micropore atomization expanded metals 7 that is fixed on the micropore atomization head 6 closely contacts with luffing bar radiation end face 5, micropore atomization head 6 is by set bolt 9, hold-down nut 10 is fixedlyed connected with luffing bar ring flange 8, the outlet of liquid feed channels 11 is positioned at the geometric center of luffing bar radiation end face 5, the length of luffing bar 4 is generally the integral multiple of half-wavelength, and ultrasonic generator 1 is connected by cable 14 with ultrasonic transducer 2.
In the above-described embodiments, the microcellular structure expanded metals 7 that adopts on the micropore atomization head 6 is made up of porous metal plate or wire netting.The transducer radiating surface 12 of ultrasonic transducer 2, rigidly connected with the luffing bar coupling surface 13 of luffing bar 4 by connecting bolt 3.Ultrasonic transducer 2 can adopt PZT (piezoelectric transducer), also can adopt nickel, Ferrite Material magnetostrictive transducer processed and rare earth material giant magnetostrictive transducer processed.Luffing bar 4 generally is designed to multiple physics cumulative shapes such as notch cuttype, taper shape or suspension wire type, and the area that shows as luffing bar coupling surface 13 generally is far longer than the area of luffing bar radiation end face 5, thus the function that reaches cumulative and amplify amplitude.
The low-frequency ultrasonic atomizing device that the droplet of above-described embodiment is controlled utilizes low-frequency ultrasonic atomizing principle and micropore atomization principle to combine, can be to droplet size and mist amount size real-time monitoring.Referring to Fig. 1, ultrasonic generator 1 provides ultrasonic transducer 2 required vibrational energies, ultrasonic transducer 2 is generally the half-wavelength structure, can adopt the Langevin transducer of piezo-electric type, the magnetostrictive transducer that also can adopt materials such as nickel, ferrite to make, the giant magnetostrictive transducer that perhaps adopts rare earth material to make.The vibrational energy of ultrasonic transducer 2 is passed to the luffing bar coupling surface 13 of luffing bar 4 by transducer radiating surface 13.Transducer radiating surface 12 is rigidly connected by connecting bolt 3 with luffing bar coupling surface 13.Ultrasonic generator 1 is connected by cable 14 with ultrasonic transducer 2.Luffing bar 4 generally is designed to multiple physics cumulative shapes such as notch cuttype, taper shape or suspension wire type, and the area that shows as luffing bar coupling surface 13 generally is far longer than the area of luffing bar radiation end face 5, thus the function that reaches cumulative and amplify amplitude.The micropore atomization head 6 that has microcellular structure expanded metals 7 is connected with luffing bar ring flange 8 by fastening bolt 9, clamp nut 10, and microcellular structure expanded metals 7 is fixed on the geometric center of micropore atomization head 6.Microcellular structure expanded metals 7 closely contacts with luffing bar radiation end face 5.Liquid enters by feeding-passage 11, delivers between luffing bar radiation end face 5 and the microcellular structure expanded metals 7.Liquid feed channels 11 generally is positioned at the geometric center of luffing bar 4, and the opening of liquid feed channels 11 is positioned at the upper lateral part near luffing bar ring flange 8, and the outlet of liquid feed channels 11 is positioned at the center of luffing bar radiation end face 5.Liquid by liquid feed channels 11 is sent into produces atomizing and secondary-atomizing, thereby produces required droplet between luffing bar radiation end face 5 and microcellular structure expanded metals 7.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. low-frequency ultrasonic atomizing device that droplet is controlled, it is characterized in that, comprise the ultrasonic transducer that vertical setting and transducer radiating surface make progress, the transducer radiating surface that vertically is arranged on described ultrasonic transducer top, luffing bar coupling surface and ultrasonic transducer be rigidly connected and luffing bar spoke side towards last luffing bar, the detachable micropore atomization head that is fixedly installed on the luffing bar radiation end face of described luffing bar, and the ultrasonic generator that is electrically connected with described ultrasonic transducer; Luffing bar radiation end face at described luffing bar is provided with liquid feed channels.
2. the controlled low-frequency ultrasonic atomizing device of droplet according to claim 1, it is characterized in that, side at the nearly luffing bar of described micropore atomization head rest is set with the micropore atomization expanded metals, described micropore atomization expanded metals is positioned at the geometric center of micropore atomization head, and described micropore atomization expanded metals closely contacts with the luffing bar radiation end face of luffing bar.
3. the controlled low-frequency ultrasonic atomizing device of droplet according to claim 2 is characterized in that, between described micropore atomization expanded metals and luffing bar, is connected by set bolt, hold-down nut and the luffing bar ring flange that is equipped with successively.
4. the controlled low-frequency ultrasonic atomizing device of droplet according to claim 1 is characterized in that, between described ultrasonic generator and the ultrasonic transducer, connects by cable.
5. the controlled low-frequency ultrasonic atomizing device of droplet according to claim 1 is characterized in that, the transducer radiating surface of described ultrasonic transducer is rigidly connected by the luffing bar coupling surface of connecting bolt and luffing bar.
6. the low-frequency ultrasonic atomizing device controlled according to each described droplet among the claim 1-5 is characterized in that the outlet of described liquid feed channels is positioned at the geometric center of the luffing bar radiation end face of luffing bar; Described liquid feed channels comprises L shaped liquid feed channels.
7. the low-frequency ultrasonic atomizing device controlled according to each described droplet among the claim 1-5 is characterized in that described luffing bar is the physics cumulative shape that comprises notch cuttype or taper shape or suspension wire type; The area of the luffing bar coupling surface of luffing bar is far longer than the area of luffing bar radiation end face.
8. the low-frequency ultrasonic atomizing device controlled according to each described droplet among the claim 1-5 is characterized in that the length of described luffing bar is the integral multiple of half-wavelength.
9. the low-frequency ultrasonic atomizing device controlled according to each described droplet among the claim 1-5, it is characterized in that described ultrasonic transducer comprises PZT (piezoelectric transducer), perhaps adopt nickel, Ferrite Material magnetostrictive transducer processed, perhaps rare earth material giant magnetostrictive transducer processed.
10. the low-frequency ultrasonic atomizing device controlled according to each described droplet among the claim 1-5 is characterized in that described ultrasonic transducer has the half-wavelength structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214220 CN203220994U (en) | 2013-04-24 | 2013-04-24 | Low-frequency ultrasonic atomization device with droplet controllable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214220 CN203220994U (en) | 2013-04-24 | 2013-04-24 | Low-frequency ultrasonic atomization device with droplet controllable |
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| CN203220994U true CN203220994U (en) | 2013-10-02 |
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| CN 201320214220 Expired - Fee Related CN203220994U (en) | 2013-04-24 | 2013-04-24 | Low-frequency ultrasonic atomization device with droplet controllable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI510297B (en) * | 2013-11-14 | 2015-12-01 | Prec Machinery Res & Dev Ct | Ultrasonic spray module and its horn |
| WO2018000756A1 (en) * | 2016-06-29 | 2018-01-04 | 湖南中烟工业有限责任公司 | Cottonless ultrasonic atomizer and e-cigarette |
| CN109772670A (en) * | 2019-02-13 | 2019-05-21 | 方兵 | Ultrasonic variable amplitude bar |
| CN109847987A (en) * | 2019-02-13 | 2019-06-07 | 方兵 | A kind of amplitude transformer in ultrasonic humidifier |
-
2013
- 2013-04-24 CN CN 201320214220 patent/CN203220994U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI510297B (en) * | 2013-11-14 | 2015-12-01 | Prec Machinery Res & Dev Ct | Ultrasonic spray module and its horn |
| WO2018000756A1 (en) * | 2016-06-29 | 2018-01-04 | 湖南中烟工业有限责任公司 | Cottonless ultrasonic atomizer and e-cigarette |
| US11219245B2 (en) | 2016-06-29 | 2022-01-11 | China Tobacco Hunan Industrial Co., Ltd. | Cotton-free ultrasonic atomizer and electronic cigarette |
| CN109772670A (en) * | 2019-02-13 | 2019-05-21 | 方兵 | Ultrasonic variable amplitude bar |
| CN109847987A (en) * | 2019-02-13 | 2019-06-07 | 方兵 | A kind of amplitude transformer in ultrasonic humidifier |
| CN109772670B (en) * | 2019-02-13 | 2020-08-28 | 中国海洋大学 | Ultrasonic amplitude transformer |
| CN109847987B (en) * | 2019-02-13 | 2020-10-16 | 马鞍山威莎自动化设备科技有限公司 | Amplitude transformer in ultrasonic humidifier |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20160424 |