CN102283618B - Sandwich standing wave type ultrasonic dust collector and dust collection method thereof - Google Patents
Sandwich standing wave type ultrasonic dust collector and dust collection method thereof Download PDFInfo
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- CN102283618B CN102283618B CN 201110179388 CN201110179388A CN102283618B CN 102283618 B CN102283618 B CN 102283618B CN 201110179388 CN201110179388 CN 201110179388 CN 201110179388 A CN201110179388 A CN 201110179388A CN 102283618 B CN102283618 B CN 102283618B
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- dust
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- dust catcher
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- 239000000428 dust Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000005855 radiation Effects 0.000 claims description 22
- 230000000630 rising effect Effects 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 241000193935 Araneus diadematus Species 0.000 claims description 2
- 208000002925 dental caries Diseases 0.000 claims description 2
- 238000005056 compaction Methods 0.000 abstract 1
- 230000000249 desinfective effect Effects 0.000 abstract 1
- 230000001954 sterilising effect Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 244000246386 Mentha pulegium Species 0.000 description 6
- 235000016257 Mentha pulegium Nutrition 0.000 description 6
- 235000004357 Mentha x piperita Nutrition 0.000 description 6
- 235000001050 hortel pimenta Nutrition 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention relates to a sandwich standing wave type ultrasonic dust collector and a dust collection method thereof, and belongs to a technology for collecting dust by using ultrasonic standing waves. The standing wave type ultrasonic dust collector comprises two dust collection cavities and a sandwich type ultrasonic transducer which is sandwiched between the two dust collection cavities, wherein standing wave sound fields in the two dust collection cavities are generated by the sandwich type ultrasonic transducer which is positioned in the center of the dust collection cavities; and the sandwich type ultrasonic transducer has a multilayer piezoelectric ring bolt compaction structure, so that the structure compactness of the dust collector and the vibration speeds of the standing wave sound fields are increased. In the conventional dust collector, a rotation electromagnetic motor is used for driving an air pump to drive a large amount of air to flow, so that vacuum or cyclone is formed to suck the dust. In the ultrasonic dust collector, the rotation electromagnetic motor is not required to be used, and a large amount of air is not required to be driven to flow, so that the ultrasonic dust collector has the advantages of compact structure, small volume and high energy utilization rate. Ultrasonic waves at a dust collection opening can be used for disinfecting and sterilizing a dedusted surface.
Description
Technical field
Relate to the ultrasonic dust catcher of a kind of sandwich standing wave type and dust suction method thereof among the present invention, belong to the technology of utilizing ultrasonic standing wave to carry out dust suction.
Background technology
Conventional cleaners need utilize the rotating electromagnetic motor to drive air pump, to form vacuum or cyclone and then to draw dust.Flow owing to need to adopt rotary part and drive a large amount of air, conventional cleaners is being difficult to further be improved aspect structural compactness, lightweight and the capacity usage ratio.For addressing these problems, must use compact conformation, without spin parts, need not to drive the novel dust suction technology that a large amount of air flow.
Summary of the invention
Patent of the present invention provides new ultrasonic dust suction method.This method utilizes ultrasonic standing wave to carry out dust suction, and parts need not to drive a large amount of air and flow without spin, and has compact conformation, in light weight and advantage that capacity usage ratio is high.
The ultrasonic dust catcher of a kind of sandwich standing wave type is characterized in that: comprise dust catcher cavity and bright civilian transducer; Described dust catcher cavity is made up of top board, base plate, first sound reflection board that is positioned at the left side, the rising tone reflecting plate that is positioned at the right side, first side plate that is positioned at the front side, second side plate that is positioned at rear side; Above-mentioned bright civilian transducer by metal splint, multi-layer piezoelectric encourage the element that shakes, clamping screw is formed, and bright civilian transducer is that zero position is the top board that the vibration velocity node is fixed on the dust catcher cavity by its vibration velocity; The ultrasonic dust catcher of above-mentioned sandwich standing wave type also has first acoustic radiation plate and the rising tone radiant panel parallel with first sound reflection board, rising tone reflecting plate, two dust suction cavitys, the i.e. first dust suction cavity, the second dust suction cavity about the dust suction cavity is divided into by the first acoustic radiation plate and rising tone radiant panel; The above-mentioned first acoustic radiation plate is to the distance of first sound reflection board, and rising tone radiant panel is (2m+1) λ/4 to the distance of rising tone reflecting plate, and wherein λ is ultrasonic wavelength, and m is natural number; Above-mentioned each plate forms by rigid acoustical material; Be near the cross spider of acoustic pressure nodal section suction port to be set on the plane of dust catcher base plate and sound field extensional vibration speed maximum; First side plate of ultrasonic dust catcher is or/and but second side plate is provided with the door that is used for pouring out dust and the ultrasonic dust catcher cavity of cleaning of switch.
The dust suction method of the ultrasonic dust catcher of described sandwich standing wave type is characterized in that: the standing-wave sound field in the dust suction cavity is encouraged by the acoustic radiation face of the bright civilian transducer of sandwich to shake, and utilizes two standing-wave sound fields in the cavity, and the dust that cavity is outer sucks in the cavity.
Particle in the sound field is owing to the spatial non-uniformity of acoustic density around it, be subjected to effect (the list of references 1:T. Hasegawa of acoustic radiation force, T. Kido, T. Iizuka, and C. Matsuoka, " A general theory of Rayleigh and Langevin radiation pressures, "
J. Acoust. Soc. Jpn. E, vol. 21, and no. 3, pp. 145-152,2000.).Near the suction port of the ultrasonic dust catcher of the present invention, the potential energy density of sound field is zero, but kinetic energy density is maximum (list of references 2:Philip M. Morse, K. Uno Ingard, Theoretical Acoustics, New York:McGraw-Hill Book Company, 1968, p.251-258.).Therefore the acoustic radiation force that acts on the suction port dust points in the cavity, by means of this acoustic radiation force, dust can be sucked in the cavity.Further by means of the stream of the acoustics from the acoustic radiation surface current to radiating surface, dust is blowed to dust collecting part.
The ultrasonic dust catcher of described sandwich standing wave type, it is characterized in that: the above-mentioned first acoustic radiation plate and rising tone radiant panel have uniform thickness with the bright contacted part of civilian transducer end face, has inhomogeneous thickness with the bright not contacted bottom of civilian transducer end face, its thickness reduces to most advanced and sophisticated zero with linear rule or index law from the maximum on top with the locus, and namely the bottom is the clapboard structure.。For strengthening pick-up performance, the end acoustic radiation plate of sandwich transducer can also be designed to have most advanced and sophisticated clapboard.
Description of drawings
Fig. 1: embodiment 1 and 2 structure chart;
Fig. 2: embodiment 1 and 2 right view;
Number in the figure title: 1: the first dust catcher chamber: 2: the second chambeies of giving a dinner of welcome, 3: multi-layer piezoelectric is encouraged the element that shakes, and 4: metal splint, 5: clamping screw, 6: top board, 7: base plate, 8 suction ports, 9: the first acoustic radiation plates, 10: rising tone radiant panel, 11: the first sound reflection boards, 12: rising tone reflecting plate, 13: the second side plates, 14: the first side plates.
Specific embodiments
The structure of embodiment one as shown in Figure 1 and Figure 2.
Each wall of the hexahedron cavity of ultrasonic dust catcher constitutes by the metal foil copper coin of thickness 0.5mm; It is long that middle bright civilian transducer is of a size of 80mm() * the 45mm(diameter), wherein two piezoelectric rings are of a size of the 40mm(external diameter) * the 15mm(internal diameter) * 5mm(is thick), transducer assembling moment is 30kgcm; The first dust catcher chamber 1, second give a dinner of welcome length and width and the high distance that is respectively between 10.2mm, 60mm and the corrugated bottom surface of 60mm(and the end face of standing-wave sound field in the chamber 2); The height of 10 two acoustic radiation plates of the first acoustic radiation plate 9 and rising tone radiant panel (9), wide and thick 55mm, 55mm and the 0.2mm of being respectively are crushed on two ends of bright civilian transducer respectively, and its material is brass; Near the end of acoustic radiation version, be provided with the suction port 8 of long 60mm, wide 5mm; But second side plate 13 of ultrasonic dust catcher or first side plate 14 are provided with the door of switch, the cavity that is used for pouring out dust and cleans ultrasonic dust catcher; Ultrasonic dust catcher adopts waveform bottom surface 7.The frequency that is added in the driving voltage on the transducer is that 25kHz, amplitude are 150Vrms.
Utilize peppermint, salt water shrimp-roe and alumina particle that the pick-up performance of above-mentioned ultrasonic dust catcher has been carried out experimental verification.The quality of the mean radius of peppermint, density and single particle is respectively 0.26mm, 1.44g/cm
3With 49 * 10
-6G; The quality of the mean radius of salt water shrimp-roe, density and single particle is respectively 0.12mm, 0.55 g/cm
3With 3.7 * 10
-6G; The quality of the mean radius of alumina particle, density and single particle is respectively 0.2mm, 4 g/cm
3With 1.3 * 10
-4G.Be sprinkling upon on the wooden desktop of 100cm * 100cm after evenly mixed the alumina particle of the salt water shrimp-roe of peppermint of 0.1g, 0.1g and 0.1g, again ultrasonic dust catcher is placed on the desktop and move around, after 5 minutes, nearly all particle is inhaled in the ultrasonic dust catcher.
The structure of embodiment two as shown in Figure 1 and Figure 2.
In the ultrasonic dust catcher of embodiment one, use has the acoustic radiation brass sheet of wedge structure, the acoustic radiation plate has uniform thickness 3mm with the bright contacted part of civilian transducer end face, has inhomogeneous thickness in the bright contacted bottom of civilian transducer end face of discord, its thickness reduces to most advanced and sophisticated zero with linear rule from the maximum on top with the locus, be that the bottom is clapboard, vacuum chamber has identical size with other parts with embodiment one.The frequency that is added in the driving voltage on the transducer is that 25kHz, amplitude are 300 Vrms.
Utilize peppermint, iron particle and alumina particle that the pick-up performance of above-mentioned ultrasonic dust catcher has been carried out experimental verification.The quality of the mean radius of peppermint, density and single particle is respectively 0.26mm, 1.44g/cm
3With 49 * 10
-6G; The quality of the mean radius of iron particle, density and single particle is respectively 0.2mm, 7.7g/cm
3With 2.5 * 10
-4G; The quality of the mean radius of alumina particle, density and single particle is respectively 0.2mm, 4 g/cm
3With 1.3 * 10
-4G.Be sprinkling upon on the wooden desktop of 100cm * 100cm after evenly mixed the aluminium oxide of the iron particle of peppermint of 0.1g, 0.1g and 0.1g, ultrasonic dust catcher placed on the desktop to move around again, after 2.5 minutes, nearly all particle is inhaled in the ultrasonic dust catcher.
Claims (3)
1. ultrasonic dust catcher of sandwich standing wave type is characterized in that:
Comprise dust catcher cavity and bright civilian transducer;
Described dust catcher cavity is made up of top board (6), base plate (7), first sound reflection board (11) that is positioned at the left side, the rising tone reflecting plate (12) that is positioned at the right side, first side plate (14) that is positioned at the front side, second side plate (13) that is positioned at rear side;
Above-mentioned bright civilian transducer by metal splint (4), multi-layer piezoelectric encourage the element that shakes (3), clamping screw (5) is formed, and bright civilian transducer is that zero position is the top board (6) that vibration velocity node (15) is fixed on the dust catcher cavity by its vibration velocity;
The ultrasonic dust catcher of above-mentioned sandwich standing wave type also has first acoustic radiation plate (9) and the rising tone radiant panel (10) parallel with first sound reflection board (11), rising tone reflecting plate (12), two dust suction cavitys, the i.e. first dust suction cavity (1), the second dust suction cavity (2) about the dust suction cavity is divided into by the first acoustic radiation plate and rising tone radiant panel;
The above-mentioned first acoustic radiation plate (9) is to the distance of first sound reflection board (11), and rising tone radiant panel (10) is (2m+1) λ/4 to the distance of rising tone reflecting plate (12), and wherein λ is ultrasonic wavelength, and m is natural number;
Above-mentioned each plate forms by rigid acoustical material;
Be near the cross spider of acoustic pressure nodal section suction port (8) to be set on the plane of dust catcher base plate (7) and sound field extensional vibration speed maximum;
First side plate (14) of ultrasonic dust catcher or/and second side plate (13) but be provided with the door pour out dust and to clean ultrasonic dust catcher cavity of being used for of switch.
2. the ultrasonic dust catcher of sandwich standing wave type according to claim 1, it is characterized in that: the above-mentioned first acoustic radiation plate (9) and rising tone radiant panel (10) have uniform thickness with the bright contacted part of civilian transducer end face, has inhomogeneous thickness with the bright not contacted bottom of civilian transducer end face, its thickness reduces to most advanced and sophisticated zero with linear rule or index law from the maximum on top with the locus, and namely the bottom is the clapboard structure.
3. the dust suction method of the ultrasonic dust catcher of sandwich standing wave type according to claim 1 is characterized in that:
Standing-wave sound field in the dust suction cavity is encouraged by the acoustic radiation face of the bright civilian transducer of sandwich to shake, and utilizes two standing-wave sound fields in the cavity, and the dust that cavity is outer sucks in the cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110179388 CN102283618B (en) | 2011-06-29 | 2011-06-29 | Sandwich standing wave type ultrasonic dust collector and dust collection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110179388 CN102283618B (en) | 2011-06-29 | 2011-06-29 | Sandwich standing wave type ultrasonic dust collector and dust collection method thereof |
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| Publication Number | Publication Date |
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| CN102283618A CN102283618A (en) | 2011-12-21 |
| CN102283618B true CN102283618B (en) | 2013-07-03 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2264524C1 (en) * | 2004-05-25 | 2005-11-20 | Государственое образовательное учреждение высшего профессионального образования Тюменский государственный нефтегазовый университет | Method for cleaning drilling mud of particulate contamination inside sucking pipe of mud pump |
| CN101386011A (en) * | 2008-10-09 | 2009-03-18 | 英保达资讯（天津）有限公司 | Dry wet mixing dust removing treatment system and dust removing method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0684072B2 (en) * | 1987-05-29 | 1994-10-26 | 富士ゼロックス株式会社 | Inkjet print head |
| JPH09112500A (en) * | 1995-10-19 | 1997-05-02 | Nikon Corp | Pump |
| JPH11186311A (en) * | 1997-12-24 | 1999-07-09 | Ando Electric Co Ltd | Microscopic ball-mounting device |
| JPH11197491A (en) * | 1998-01-13 | 1999-07-27 | Hitachi Ltd | Method and device for treating fine particle |
| CN101879430B (en) * | 2010-04-30 | 2012-09-26 | 南京航空航天大学 | Ultrasonic reactor based on diffuse sound field |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2264524C1 (en) * | 2004-05-25 | 2005-11-20 | Государственое образовательное учреждение высшего профессионального образования Тюменский государственный нефтегазовый университет | Method for cleaning drilling mud of particulate contamination inside sucking pipe of mud pump |
| CN101386011A (en) * | 2008-10-09 | 2009-03-18 | 英保达资讯（天津）有限公司 | Dry wet mixing dust removing treatment system and dust removing method thereof |
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Granted publication date: 20130703 |