CN1274614A - Supersonic vibrating dedusting method and device - Google Patents
Supersonic vibrating dedusting method and device Download PDFInfo
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- CN1274614A CN1274614A CN99106814A CN99106814A CN1274614A CN 1274614 A CN1274614 A CN 1274614A CN 99106814 A CN99106814 A CN 99106814A CN 99106814 A CN99106814 A CN 99106814A CN 1274614 A CN1274614 A CN 1274614A
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- supersonic
- piezoelectric constant
- copper sheet
- impedance matching
- matching layer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The present invention relates to an atmosphere pollution reducing environment protecting technique, especially a supersonic vibrating dedusting method for treating tail gas of motor vehicles and device thereby. The supersonic device includes a supersonic transducer and a supersonic vibration generator, and features that the supersonic vibration generator outputs a supersonic vibration signal with certain power and frequency to drive the supersonic transducer to vibrate at high frequency, so that the waste tail gas agglutinates into particles and settles. The present invention may be used in all kinds of vehicle.
Description
The present invention relates to a kind of protection environment and reduce air-polluting method, especially a kind of supersonic vibrating dedusting method and device that is applicable to motor vehicle tail gas.
Existing motor vehicle mostly use fuel engine as power plant, cause the tail gas waste gas that contains a large amount of harmful gases thus and befouling environment, directly influence people's healthy and quality of life.In order to address this problem, people take the whole bag of tricks to carry out the vehicle exhaust dedusting for a long time, but all do not have basic the solution.
The purpose of this invention is to provide a kind of supersonic vibrating dedusting method and device, reduce harmful matter in the motor vehicle tail gas, thereby reduced the pollution of atmosphere.
In order to achieve the above object, the present invention at first will design a kind of oscillation device, make its vibration repeatedly in motor vehicle tail gas, thereby use up fuel, sulphide, carbide etc. in the waste gas are not precipitated because of vibrating to collide to be condensed into than the major diameter particle repeatedly than fine grained.Consider the characteristics that volume is little and oscillation frequency is high in the motor vehicle tail gas venting gas appliance, decision adopts the sonic oscillation method to make an oscillation device, and ultrafine particle in its cohesion tail gas waste gas that vibrates at a high speed repeatedly makes its precipitation.Two porose piezoceramics crystals of center of at first choosing certain diameter and thickness are vibration source, and are designed to vibration transducer with two copper sheet a slice copper segments and screw.Specifically, one copper sheet is placed a piezoelectric constant one surface, be modulated into a thick liquid by a certain percentage with plasticizing agent such as epoxy resin ethylenediamines again, be coated on the copper sheet, then become an acoustic impedance matching layer after its drying, this copper sheet is linked vibrator circuit output signal one end, another piezoelectric constant is placed another surface of the piezoelectric constant of sound impedance matching layer, the copper sheet of one center drilling is set between these two piezoelectric constant, connect the vibrator circuit output signal the other end, be processed into a pressing plate with a sheet copper again, center drilling, with screw that pressing plate and two piezoelectric constant is tightly fixing, make a horn mouth with fan-shaped scale copper at last, its osculum tightly links to each other with the acoustic impedance matching layer with epoxy resin, thereby forms a vibrator, and the piezoelectric constant vibration drives the horn mouth vibration and makes that waste gas vibrates repeatedly in the tail gas.
Behind the design oscillating body, design an oscillatory trigger circuit again, drive the piezoelectric constant vibration.The main part of circuit has vibration part, power amplification part and coupling output to take place partly.Choosing certain specification resistance, electric capacity, high speed switch tube, small-power amplifying tube design vibration takes place partly to turn to Input transformer and output transformer with two of E type magnetic cores by certain parameter, amplify in the secondary oscillation signal power of carrying out of Input transformer, as the output transformer primary input signal, be coupled to two surfaces in the piezoelectric constant through secondary, thereby piezoelectric constant is vibrated repeatedly.
Advantage of the present invention is practical and effect is obviously easy to make, is easy to promote.
Figure of description 1 is apparatus of the present invention structural representation, and accompanying drawing 2 is the vibrator circuit electrical schematic diagram, and accompanying drawing 3 is the transducer architecture schematic representation, and accompanying drawing (4) is accompanying drawing (a 3) plan view.Number in the figure (1) is a suction tude; (2) be muffler shell; (3) be dividing plate; (4) be outlet pipe; (5) be front shroud; (6) be piezoelectric constant; (7) be support; (8) be dust leg; (9) be that inner catheter (10) is a back shroud; (11) be copper sheet; (12) be pressing plate; (13) be the acoustic impedance matching layer; (14) be horn mouth; (15) be screw.
Concrete enforcement of the present invention is: (6) two of the garden shape piezoelectric constant that to choose 60 millimeters thickness of diameter be 10 millimeters center drillings, make two copper sheets (11), and center drilling is made the pressing plate (12) of center drilling with sheet copper.Use epoxy resin, plasticizing agent such as ethylenediamine are mixed into viscous fluid by a certain percentage, one copper sheet (11) is placed a piezoelectric constant (6) surface, viscous fluid is coated with thereon and oven dry, then form an acoustic impedance matching layer (13), cut copper segment again and make horn mouth (14), little one of its diameter is bonded at acoustic impedance matching layer (13) with epoxy resin, in addition another piezoelectric constant (6) is pressed in another surface of a piezoelectric constant (6) of sound impedance matching layer (13), one copper sheet (11) is set between two piezoelectric constant (6), with pressing plate (12) press pass two piezoelectric constant (6) and pressing plate (12) with screw (15) tightly fixing, thereby become a ultrasonic transduction shake unit.
Make oscillation signal generator according to Figure of description (2).Choose certain specification electric capacity, resistance, small power switch triode Q
1, Q
2, Q
3, connect according to certain relation, and make energy storage energy magnetic strength LL, the positive pole of the positive 12V of one end speed DC electrical source, the other end connects resistance R
8Select two E type magnetic cores for use, turn to Input transformer T by certain parameter
2And output transformer T
1, with T
2An elementary end connect resistance R
8, the other end connects small power amplifier triode Q
1Collector electrode; T
2A secondary end and big power tube Q
4, Q
5, Q
6Base stage links to each other, T
2The secondary the other end and big power tube Q
7, Q
8, Q
9Base stage link to each other, the secondary centre tap meets the negative pole of 12V power supply, Q
4, Q
5, Q
6Collector electrode meet output transformer T
1An elementary end, Q7, Q8, Q9 collector electrode connect an end in the first receipts of T1, and the primary center tap of T1 connects the positive pole of 12V power supply, secondary two termination piezoelectric constant (6) two surfaces of T1, other line is made into printed wiring board as shown in the figure behind the circuit debugging, and is connected with the ultrasonic transduction shake unit.
Claims (1)
- A kind of supersonic vibrating dedusting method and device, it comprises:A: by the ultrasonic transduction vibrator of piezoelectric constant (6), copper sheet (11), pressing plate (12), horn mouth (14) and screw (15) formation;B: free device by the oscillator signal that vibrator circuit, small power amplifier circuit and big power amplifier output circuit constitute;It is characterized in that:A: piezoelectric constant (6) one side has an acoustic impedance matching layer (13), and acoustic impedance matching layer (13) is connected with horn mouth (14) and copper sheet (11);B a: copper sheet (11) is arranged in the middle of two piezoelectric ceramic wafers (6);C: pressing plate (12) is tightly fixing by screw (15) with two piezoelectric constant (6);D: energy storage can be connected with power supply 12V is anodal by element LL one end in the sonic oscillation generating means, and the other end is connected with resistance R 8 one ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99106814A CN1274614A (en) | 1999-05-25 | 1999-05-25 | Supersonic vibrating dedusting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99106814A CN1274614A (en) | 1999-05-25 | 1999-05-25 | Supersonic vibrating dedusting method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1274614A true CN1274614A (en) | 2000-11-29 |
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ID=5272515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99106814A Pending CN1274614A (en) | 1999-05-25 | 1999-05-25 | Supersonic vibrating dedusting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1274614A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689674A (en) * | 2013-12-05 | 2015-06-10 | 浙江大学 | Particulate matter aggregation method as well as aggregation treatment method and particulate matter aggregation system based on generalized quantum ultrasonic trap |
| CN105107334A (en) * | 2015-09-22 | 2015-12-02 | 东南大学 | Thermoacoustically-driven suspended particle migration and removal device |
-
1999
- 1999-05-25 CN CN99106814A patent/CN1274614A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689674A (en) * | 2013-12-05 | 2015-06-10 | 浙江大学 | Particulate matter aggregation method as well as aggregation treatment method and particulate matter aggregation system based on generalized quantum ultrasonic trap |
| CN105107334A (en) * | 2015-09-22 | 2015-12-02 | 东南大学 | Thermoacoustically-driven suspended particle migration and removal device |
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