CN106466535A - A kind of particulate filter arrangement - Google Patents
A kind of particulate filter arrangement Download PDFInfo
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- CN106466535A CN106466535A CN201510513834.7A CN201510513834A CN106466535A CN 106466535 A CN106466535 A CN 106466535A CN 201510513834 A CN201510513834 A CN 201510513834A CN 106466535 A CN106466535 A CN 106466535A
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- electric field
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- particulate filter
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Abstract
The present invention relates to a kind of contactless particulate filter arrangement.This defecator is one block of porous circuitry plate, is made up of substantial amounts of parallel alternating electrode and one piece of filter plate with a large amount of through holes.Described parallel alternating electrode produces electric field, and remote electric field resistance is produced to granule and make granule cannot osmosis filtration device, and the through hole that the fluid carrying granule can freely pass through in filter plate.The described fluid carrying granule is typically air stream and current.Described parallel in a large number alternating electrode is typically the thin conductor of length being printed on filter plate surface, with certain space interval distribution, and is alternately connected with one of two terminals of alternating current.Described through hole is located in the middle of the described space interval of parallel alternating electrode, and makes the filter plate with through hole have the fluid resistance of minimum.Therefore, the described through hole in filter plate is the passage of defecator involved by the fluid permeability present invention, and described parallel alternating electrode plays protective shield effect, and remote prevention granule passes through, the two plays a role jointly, constitutes described contactless particulate filter arrangement.
Description
Technical field
The present invention relates to a kind of particulate filter arrangement, using differing from traditional membrane filtration or electric filter method, the electric field force with remote action that this particulate filter arrangement is produced by alternating electric field and realize contactless particle filtering, it is to avoid the deposition on defecator surface for the granule.
Background technology
In general, particle filtering is used for removing its entrained particulate matter from fluid, it is a kind of activity closely bound up with people's daily life, production.One modal example is that people remove the pollutant of in the air with mask, mask thus serve purify air, reduce the effect of hazard of contaminant.Visible particle filters and had great importance by the countries and regions of air pollution often.In addition to air cleaning, particle filtering is also widely used in other field, such as in health field it is often necessary to separate cell from blood plasma.
Put into practice through all the year round, be developed multiple particle filtering methods, but totally can be divided into membrane filtration and electric filter method.It is, in principle, that membrane filtration is to allow the hole by film for the fluid, and its entrained granule cannot pass through hole and envelope hinders, or absorbed by loose structure；Electric filter allows electrostatic charge on granule band first, is then attracted by the positive/negative plate of high pressure and deposits, and fluid can not carry electrostatic charge and be maintained continuing to move along.
Although these existing filter methods are all widely used always, their shortcoming is also apparent from：Or produce larger fluid resistance, or need complicated huge equipment.In order to realize filtering, in membrane filtration, the film being adopted or loose structure typically require and have the hole also less than grain diameter.Due to Kong Yue little, the resistance of fluid is bigger, then the efficiency of film or loose structure filtration is just had a greatly reduced quality.Meanwhile, accurately prepare substantial amounts of little yardstick（Particularly under micro-meter scale）Pore structure be extremely difficult and expensive, therefore generally there is defective hole and be difficult to avoid that, so that film or loose structure lose part efficiency.Additionally, lasting adhesion on film or loose structure internal capillary for the granule, will inevitably make still to lose function.Therefore, almost all of defecator all must regularly update filter element, thus bringing extra material consumption and maintenance cost.In terms of electric filter, granule in electrode plate surface when depositing to a certain amount of, Rotating fields can be formed and hinder follow-up granule to continue to be acted on by electric field force, lead to battery lead plate disabler, need the mechanism of beaing of setting complexity to remove dust.Therefore equipment has the shortcomings that high cost, occupation of land are big.
The present invention proposes a kind of particulate filter arrangement, the alternating electric field being produced using parallel alternating electrode, realizes contactless prevention particulate matter convergence porous filter plate at a distance, and fluid is not subject to electric field force can pass freely through porous filter plate.Its principle is, granule（Such as dust）Acted on by electric field force in the parallel alternating electrode of convergence energising, thus being stoped at a distance and expelling it is impossible to touch porous filter plate.And carry particulate matter fluid（It is typically gas, liquid）The hole of porous filter plate then can be passed freely through, because it is substrate, obstructed electric field force effect.Therefore, because the effect of parallel alternating electrode, particulate matter cannot deposit on the surface of porous filter plate, without mechanical mechanism（As knocking device）In the case of, just can enable filter plate continuously, constantly work, and additionally not increase the resistance of fluid.
Content of the invention
The present invention proposes a kind of particle filtering mode that is brand-new, sustainably working.By parallel alternating electrode of arranging on porous filter plate, at a distance granule is separated with fluid, thus preventing deposition on filter plate for the granule.Significantly different with existing filter method is, the untouchable seriality that ensure that filter plate work of granule and filter plate, no additional fluid resistance and the power loss of tests causing.
It is a feature of the present invention that when fluid carries granule convergence defecator, only particulate matter can be acted on by electric field force, and fluid itself is not affected by electric field.When particle stream enters the electric field with gradient, all have with fluid different electrical（It is typically dielectric constant）Particulate matter all will be acted on by electric field force.Parallel alternating electrode can be easy to produce gradient electric field, thus granule or attracted by electrode, or repelled by electrode.When the voltage being applied on electrode is exchange, the electric field of generation is time domain and spatial domain is simultaneously variable, then the granule entering this electric field will be acted on by dielectrophoretic force and Coulomb force etc., thus being dislodged the adjacent domain of electrode.Granule is subject to the process that impact granule is also moved by drag and gravity of fluid etc., but passes through such as regulated fluid speed, the amount of changing electric field intensity, and makes granule powered in advance（Electrification or phase mutual friction）Etc. method, the final total stress of granule is made to be still to stop it from contacting with screen plate, or away from screen plate.
The advantage of this is, electric field force is remote to the effect of particulate matter, just granule can be expelled before directly contact, thus avoiding the deposition in filter surface for the granule.And the problem being caused due to granule deposition, membrane filter method and traditional electric filter method all cannot keep routinely working.Or need to regularly replace filter element, or be necessary to ensure that and constantly the granule of sedimentation removed.And in the present invention, because granule all cannot contact filter plate from start to finish, the function of defecator will not need not be changed filter plate completely by disturbing that granule deposits.The advantage of the present invention more can embody on those valuable equipment, for example, frequently change filter element and may damage sensing unit, the life-span of equipment is adversely affected；And the occasion that those filter element replacings are inconvenient.
Additionally, the defecator involved by the present invention has the characteristics that real-time, tunable, and its structure need not machinery sexually revise.The size of the electric field force being applied on granule is determined by the alternating current being applied, and alternating current can just be controlled by circuit module to example, and therefore, the function of defecator can be adjusted conveniently by control unit, and easily realizes closed loop control.For example, the particulate filter arrangement of the present invention is used for air cleaning, when mean particle size is 10 microns when operating, underload pattern can be started；And when mean particle size is detected for 2.5 microns, heavy load pattern can be started.
Particulate filter arrangement of the present invention can carry out batch making by printed circuit board (PCB) method.Parallel alternating electrode can be by traditional copper etch process experiment, and the through hole in porous filter plate can be obtained by the method for boring, cutting, punching press or milling.Electrode surface needs one layer of anti-breakdown protecting film, can deposit or sprayed and realized before or after drilling.Other preparation methoies can be used for preparing particulate filter arrangement of the present invention, such as comprises metallic fiber and non-conductive fiber weaving method.Braided metal fiber has proven to a kind of effective method making parallel pole, particularly prepare flexibility or deformable electrode.Therefore, be woven in and prepare particulate filter arrangement of the present invention, such as mask when, be extremely have potential.
One basicusing of particulate filter arrangement of the present invention is air cleaning, towards dust granules be 1 micron to 100 microns.This defecator is installed on particulate burning purifying machine, filter plate need not be changed.Compared with traditional HEPA filtering technique, can greatly save material for core and maintenance cost, need to know that HEPA filter element typically requires and be changed every 3-4 month, and expensive.Therefore, this defecator of the present invention can be used for the air quality control in building, and the dust in the vehicles filters, or equipment and instrument internal hinder dust to traverse into or out, such as in electric station, in radiator, ventilator entrance.Based on same operation principle, this defecator of the present invention go for granule be solid, fluid be gas or liquid, granule be gas, fluid be liquid（As bubble）, or granule be liquid, fluid be gas（Aerosol）Or liquid（Emulsion）Situation.
Particulate filter arrangement of the present invention can be readily extended to the application that granule separates or granule selects.The granule of different size of granule or different materials will be acted on by different size of electric field force near parallel alternating electrode.Therefore, by adjusting the size of alternation electricity, certain organizes granule（Particle swarm as certain size）Filter plate can be passed through, and the granule of other groups cannot pass through.In biomedical sector, different types of cell may lead to the active force being unable to university of electrode, separates such that it is able to these cells are carried out with packet.
Particulate filter arrangement of the present invention, performance is determined by its physical dimension and electrical parameter.The spacing of adjacent, parallel alternating electrode to be selected with reference to the grain diameter to picture that worked.As in less granule, electrode spacing also accordingly reduces.In the same manner, the hole size on porous filter plate to determine, usual through hole occupies the space between electrode as much as possible by the spacing of electrode.The width of electrode generally do not dramatically increase as little as possible in the range of cost of manufacture.The thickness of the protecting film of anti-electrical breakdown wants the size of the alternating electric field that structure applied to select.In order to implement real-time control and regulation, the alternating current generally being applied will have larger adjustable extent.
Brief description
Fig. 1 is a kind of implementation of the present invention, and wherein parallel alternate electrode (4) is arranged in porous filter plate (2) surface, and manhole (3) embeds among porous filter plate (2).
Fig. 2 is the sectional view of defecator described in Fig. 1, and wherein porous filter plate (2) comprises a large amount of round tube holes（3）, the parallel alternating electrode of its surface layout (4), and anti-breakdown protective layer (5).
Fig. 3 is an application in terms of air cleaning for the present invention, and in figure shows the entrance (6) of fluid, exports (7), and dust accumulator (8).
Fig. 4 is the present invention another application in terms of air cleaning, and wherein particulate burning purifying device is circular.
Fig. 5 is a kind of implementation of the present invention, and the port that porous filter plate comprises in fact is rectangle.
Fig. 6 is a kind of implementation of the present invention, and wherein said parallel alternating electrode is spirality conductor, has and is made up of 3 groups of spiral conductors, needs 3 intersecting power transformations as feed.
Fig. 7 is a kind of implementation of the present invention, and wherein Bank of Communications's alternating electrode has hierarchical organization.
Accompanying drawing is explained in detail.Fig. 1 shows a main implementation of the present invention, wherein said particulate filter arrangement comprises the surface that parallel alternating electrode (4) is arranged in porous filter plate (2), and manhole (3) is included among porous filter plate (2).Parallel alternating electrode can be divided into two groups, one comb shaped structure of every group of formation, the comb of two groups of comb shaped structures（I.e. described parallel alternating electrode）Just over the ground, abreast, alternately it is staggeredly arranged.During work, every group of electrode is connected with terminals of alternating current power supply respectively.
Fig. 2 is a kind of sectional view of main implementation of the present invention, and described particulate filter arrangement comprises porous filter plate (2), through hole (3), parallel alternating electrode (4) and anti-breakdown protecting film (5).Described through hole (3) is also cross porous filter plate (2) and anti-breakdown protecting film (5), thus fluid（It is typically air and liquid）It is able to pass through porous filter plate (2) and anti-breakdown protecting film (5) by these through holes (3).Bank of Communications's alternating electrode (4) is completely covered by anti-breakdown protecting film (5).The spacing (p) of adjacent, parallel alternating electrode (4) is determined by the grain diameter being filtered, and the diameter of through hole (3) or width (d) are slightly less than the spacing (p) of parallel alternating electrode (4).The width (a) of parallel alternating electrode (4) can be as far as possible little, is typically close with the thickness of parallel alternating electrode (4).
Fig. 3 shows that particulate filter arrangement of the present invention is applied to air cleaning.Particulate filter arrangement comprises alternation electric wiring terminal (1), porous filter plate (2), through hole (3), parallel alternating electrode (4) and anti-breakdown protecting film, is installed between the entrance (6) of air stream (9) and outlet (7).The air stream (9) of Residual contamination thing is becoming clean particle stream (10) after described particulate filter arrangement.Dust granules entrained by air stream (9) are after parallel alternating electrode (4), lead to electric field force to order about and flatly move along porous filter plate (2) surface, eventually fall among the dust arrester (8) positioned at defecator both sides.In this implementation, the entrance (6) of air stream is slightly larger than outlet (7).The user of this air cleaner only needs to periodically dust arrester (8) be taken out cleaning, and filter element need not be changed, because dust particle cannot contact parallel alternating electrode (4) and porous filter plate (2), thus the two will be always maintained at clean state.
Fig. 4 is a kind of implementation that described invention is evolved for air, and wherein said particulate filter arrangement is in annulus column.The poroid passband (11) from depurator cavity both sides for the air stream (9) of Residual contamination thing enters, and the through hole (3) through defecator, and entrained dust granules are hindered by arresting by parallel alternating electrode (4).Dust granules (12) eventually fall in the dust arrester (8) positioned at depurator bottom.
Fig. 5 shows another kind of implementation of the present invention, and described through hole (3) is rectangle, and parallel alternating electrode keeps constant as described in Figure 1.Rectangular through hole has the advantages that to simplify the course of processing, can take the space between electrode as far as possible again, thus reducing fluid to pass through the resistance suffered by many filter plates.
Fig. 6 shows another kind of implementation of the present invention, and wherein said parallel alternating electrode has spiral profile, and can be divided into 3 groups of structures, and every group of electrode is connected with a binding post of 3 cross streams electricity.By applying 3 cross streams electricity, the voltage of required applying can reduce.Usual 2 cross streams electricity can only produce standing-wave electric field, and 3 cross streams electric energy enough produce traveling wave electric field, will more effectively order about granule and carry out surface movement.Can also adopt more multiphase alternating current, but required electrode be also classified into more multigroup.
Fig. 7 is another kind of implementation of the present invention, and wherein said parallel alternating electrode has graduate structure, that is, have a parallel alternating electrode pair of different spacing and size, and every group of electrode pair will play a role to the granule of a certain particle diameter.Graduate structure also can be considered a kind of method increasing screen plate, that is, high-level on the electrode with large pitch can be considered as the supply line of the electrode with smaller spacing on low level.
As previously mentioned; the through hole (3) comprising in described porous filter plate (2) and anti-breakdown protecting film (5) is the passage of fluid, and parallel alternating electrode (4) produce electric field force stop granule through play filter screen effect.Therefore, the electric field sufficiently strong to generation of the spacing between adjacent, parallel alternating electrode (4) and electric field force have crucial meaning.And described through hole typically takes the spacing that electrode is formed as far as possible, to reduce the resistance that fluid passes through porous filter plate (2).Anti-breakdown protecting film (5) is necessary, prevents electrical breakdown damage and the mechanical damage of electrode simultaneously.But realize anti-breakdown in the case of, the thickness of protecting film (5) should be as far as possible little, in order to avoid weakening the active force of electrode pair granule, because the thickness of protecting film determines the convergence degree to electrode and filter plate for the granule.
Claims (10)
1. a kind of contactless particulate filter arrangement of utilization electric field force remote action; it is characterized in that; it is made up of parallel alternating electrode, the filter plate with through hole, electrode protective membrane; described parallel alternating electrode is located at the surface of the described filter plate with through hole; described electrode protective membrane is completely covered described parallel alternating electrode, and described through hole passes through described filter plate and electrode protective membrane simultaneously.
2. the contactless particulate filter arrangement of utilization electric field force remote action as claimed in claim 1 is it is characterised in that described parallel alternating electrode typical appearance is similar to two comb forms, comb relatively arranged crosswise in parallel with each other.
3. the contactless particulate filter arrangement of utilization electric field force remote action as claimed in claim 1 is it is characterised in that spacing (p) magnitude range of described parallel alternating electrode adjacent electrode is 1 micron to 1 millimeter.
4. the contactless particulate filter arrangement of utilization electric field force remote action as claimed in claim 1 is it is characterised in that the porosity ranges passing through the through hole formation of filter plate and protecting film while described are：5% to 95%.
5. the contactless particulate filter arrangement of utilization electric field force remote action as claimed in claim 1 is it is characterised in that the electric field intensity scope that parallel alternating electrode is formed is:1000 volts/rice is to 15000 kilovolts/meter, namely 1 volt/millimeter is to 15 kvolts/millimeter.
6. the contactless particulate filter arrangement using electric field force remote action as claimed in claim 1 is it is characterised in that the ac frequency scope being carried on described parallel alternating electrode is 10 hertz to 300 hertz.
7. the contactless particulate filter arrangement using electric field force remote action as claimed in claim 1 be it is characterised in that the described parallel alternating electrode and the filtering circuit plate of porous filter plate of comprising can be planar structure or nonplanar structure, such as cylindrical structure.
8. the contactless particulate filter arrangement using electric field force remote action as claimed in claim 1 is it is characterised in that described granule can be solid, gas or liquid.
9. the contactless particulate filter arrangement of utilization electric field force remote action as claimed in claim 1, it is characterized in that, described granule is processed by electrification in advance before the filtering circuit plate comprising parallel alternating electrode and porous filter plate described in convergence and carries electric charge to improve filtering efficiency.
10. the contactless particulate filter arrangement utilizing electric field force remote action as claimed in claim 1 is it is characterised in that described defecator is used for particle screen selecting, selectively allow for a part of particle by and another granule can not pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513834.7A CN106466535A (en) | 2015-08-21 | 2015-08-21 | A kind of particulate filter arrangement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510513834.7A CN106466535A (en) | 2015-08-21 | 2015-08-21 | A kind of particulate filter arrangement |
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| CN106466535A true CN106466535A (en) | 2017-03-01 |
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| CN201510513834.7A Pending CN106466535A (en) | 2015-08-21 | 2015-08-21 | A kind of particulate filter arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114502255A (en) * | 2019-09-23 | 2022-05-13 | 波音公司 | Particulate filter and method for removing particulates from a particulate filter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11262680A (en) * | 1998-03-17 | 1999-09-28 | Kawasaki Heavy Ind Ltd | Electric dust collector |
| JP3845341B2 (en) * | 2002-06-26 | 2006-11-15 | 株式会社アドバンス | Conductive fiber separator |
| US7744738B1 (en) * | 2003-10-16 | 2010-06-29 | The University Of Notre Dame | Method and apparatus for rapid particle manipulation and characterization |
| CN102671765A (en) * | 2011-03-16 | 2012-09-19 | 谢蓉 | Novel method for electrostatic dust collection and application thereof |
| CN103272696A (en) * | 2013-06-06 | 2013-09-04 | 大连海事大学 | Particulate diffusion charge thickening method |
| CN103341407A (en) * | 2013-06-06 | 2013-10-09 | 大连海事大学 | Primary particulate diffusion eliminating method and apparatus thereof |
-
2015
- 2015-08-21 CN CN201510513834.7A patent/CN106466535A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11262680A (en) * | 1998-03-17 | 1999-09-28 | Kawasaki Heavy Ind Ltd | Electric dust collector |
| JP3845341B2 (en) * | 2002-06-26 | 2006-11-15 | 株式会社アドバンス | Conductive fiber separator |
| US7744738B1 (en) * | 2003-10-16 | 2010-06-29 | The University Of Notre Dame | Method and apparatus for rapid particle manipulation and characterization |
| CN102671765A (en) * | 2011-03-16 | 2012-09-19 | 谢蓉 | Novel method for electrostatic dust collection and application thereof |
| CN103272696A (en) * | 2013-06-06 | 2013-09-04 | 大连海事大学 | Particulate diffusion charge thickening method |
| CN103341407A (en) * | 2013-06-06 | 2013-10-09 | 大连海事大学 | Primary particulate diffusion eliminating method and apparatus thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114502255A (en) * | 2019-09-23 | 2022-05-13 | 波音公司 | Particulate filter and method for removing particulates from a particulate filter |
| CN114502255B (en) * | 2019-09-23 | 2024-02-06 | 波音公司 | Particulate filter and method for removing particulates from a particulate filter |
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