CN202606276U - Air purification device for collecting dust by virtue of electret characteristics of material - Google Patents
Air purification device for collecting dust by virtue of electret characteristics of material Download PDFInfo
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- CN202606276U CN202606276U CN 201220152918 CN201220152918U CN202606276U CN 202606276 U CN202606276 U CN 202606276U CN 201220152918 CN201220152918 CN 201220152918 CN 201220152918 U CN201220152918 U CN 201220152918U CN 202606276 U CN202606276 U CN 202606276U
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- dust
- power supply
- collecting plate
- voltage
- dust collection
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Abstract
The utility model discloses an air purification device for collecting dust by virtue of the electret characteristics of a material, comprising a dust collection assembly, a high-voltage direct-current power supply and a control logic module, wherein the dust collection assembly comprises at least two dust collection plates; the dust collection plates are produced by mixing at least two engineering plastics, and then performing injection moulding or extrusion moulding, wherein at least one engineering plastic is strong in electret characteristics, a plurality of airflow channels are arranged on the dust collection plates, and electrodes are paved on the outer surfaces of the dust collection plates; the positive output end and the negative output end of the high-voltage direct-current power supply are correspondingly in electric connection with the electrodes of each dust collection plate respectively; and the control logic module is used for controlling the high-voltage direct-current power supply to apply periodic intermittent power supply to the dust collection assembly, namely, in a period T, each dust collection plate of the dust collection assembly is continuously electropolarized for a period of time T1 and then continuously interrupted for another period of time T2, and so on. The air purification device disclosed by the utility model has the advantages of being low in cost, good in filter efficiency, energy-saving and environment-friendly, safe and reliable, small in air resistance, low in noise, convenient in cleanness, convenient in assembly and the like; and moreover, the periodic intermittent power supply mode can be adopted.
Description
[
Technical field]
The utility model relates to the combined apparatus that is used for from gas or steam separating particles, particularly relates to the air cleaning unit that utilizes electrostatic absorption principle to process, and relates in particular to the air cleaning unit that fine particulates is carried out Electrostatic Absorption.
[
Background technology]
The prior art air cleaning unit is mainly used in the enclosure space fine particulates is filtered; Fine particulates especially particle diameter is less than or equal to 2.5 microns particle health is caused very big harm; The prior art air cleaning unit comprise that the mode that adopts physical filtering or Electrostatic Absorption stops or adsorption gas flow in particle; Wherein the physical filtering mode has following weak point:
One, after use a period of time, filter efficiency significantly descends;
Two, filter core is difficult to clean, and perhaps cleans the back filter efficiency and declines to a great extent;
Three, more the renew cartridge cost is high;
Four, the windage of filter core is bigger, the supporting use heavy-duty motor drive fan of palpus, and noise is big when causing using.
Wherein common Electrostatic Absorption mode has following weak point:
One, because continued power voltage is higher, must adopt many safe precaution measures during design, cause product cost to rise;
Two, continue high pressure and cause corona discharge, around air cleaning unit, produce harmful ozone; Simultaneously because the high voltage electricity accumulation, make air breakdown and produce the discharge noise, also dangerous.
The air cleaning unit of the Electrostatic Absorption mode of prior art employing electret characteristic comprises collection assembly of dust and the high-voltage DC power supply of this collection assembly of dust that is used for polarizing; Collection assembly of dust comprises collecting plate; The collecting plate surface is provided with electret; The air cleaning unit of this structure also has following weak point except the weak point of above-mentioned common Electrostatic Absorption mode:
One, existing technology is in order to prevent that continuing electrion produces a large amount of ozone, and common high-tension output potential difference is confined to below 15 kilovolts, and this voltage can not be given full play to the electrology characteristic of electret;
Though two adopt the power supply mode that continues to power up, purification efficiency is still not high, but also dangerous;
Three, existing technology is at collecting plate surface spraying electret; Need to adopt hot melt, adhesive is bonding or other modes seal electret technology for prevent that this electret is damaged in cleaning or using, and two adjacent collecting plates fix through hot melt or adhesive means; This spline structure is in daily use, and the volatile chemical in the adhesive continues to discharge the generation peculiar smell and cause secondary pollution; Also can cause reliability to reduce, clean after-purification efficient and also can descend; And because complex process, and cause production cost to increase.
[
The utility model content]
The technical problem that the utility model will solve is to avoid the weak point of above-mentioned prior art and a kind of air cleaning unit that utilizes material electret characteristic control of dust is provided; Have that cost is low, filter efficiency good, energy-conserving and environment-protective, safe and reliable, windage is little, noise is little, convenience for washing and advantage such as easy to assembly, and can adopt periodic intermission power supply method.
The technical scheme that the utility model solve the technical problem employing is:
A kind of air cleaning unit that utilizes material electret characteristic control of dust is provided, comprises collection assembly of dust and the high-voltage DC power supply of this collection assembly of dust that is used for polarizing; Said collection assembly of dust comprises housing and at least two collecting plates that are arranged in this housing; Said air cleaning unit comprises the control logic module of the output voltage amplitude, dutycycle and the repetition rate that are used to control said high-voltage DC power supply; Said collecting plate is the collecting plate with strong electret characteristic; This collecting plate is to mix at least two kinds of engineering plastics, wherein has a kind of strong electret characteristic that has at least, and injection moulding or extrusion molding are processed then; Which is provided with the many places gas channel, said collecting plate outer surface lays electrode; The positive and negative output of said high-voltage DC power supply correspondingly is electrically connected with the electrode of each collecting plate respectively; The said high-voltage DC power supply of said control logic module controls applies periodic intermittent power supply to said collection assembly of dust, and each collecting plate of promptly said collection assembly of dust continues to add electric polarization a period of time T
1, continue another section of outage time T again
2,, so circulate, wherein T=T as one-period T
1+ T
2, T
2>>T
1, reducing corona discharge, avoid dielectric breakdown and to produce ozone, and obtain maximum polarizing voltage, can also save electric power.
Only lay a plate electrode on each collecting plate respectively; Said electrode is laid on the upper surface of said collecting plate, is arranged on after the bending of one of which end with this upper surface to constitute on the side of seamed edge, and the other end then leaves another side one segment distance that constitutes seamed edge with said upper surface; Each collecting plate is close to each other; The electrode left and right sides intervening sequences of the two adjacent said collecting plates that are close together is arranged; Be positioned at the electrode connection parallel with one another of each collecting plate of the same side; Two strip electrode links about formation, two strip electrode links correspondingly are electrically connected with the positive and negative output of said high-voltage DC power supply respectively about this.
Every adjacent two collecting plates are close to each other removedly and are put together.
When the said high-voltage DC power supply of said control logic module controls polarizes to said collection assembly of dust, divide N stepped powering up to be pressed onto the highest polarizing voltage U
0, and be pressed onto the highest polarizing voltage U powering up each time to be pressed onto a certain level polarizing voltage and to power up at last
0The time, all keep a period of time, wherein N>=2.
Or when the said high-voltage DC power supply of said control logic module controls polarized to said collection assembly of dust, starting from scratch to power up continuously was pressed onto the highest polarizing voltage U
0, the slope of wherein starting from scratch with dv/dt rises to the highest polarizing voltage U continuously
0, need a period of time T
11', then at the highest polarizing voltage U
0The time, keep a period of time T
10', T wherein
11'≤T
10', T
11' ﹢ T
10'=T
1
Compare with prior art, the utility model utilizes the air cleaning unit of material electret characteristic control of dust and the beneficial effect of air purification method to be:
1, specially mixes at least two kinds of engineering plastics; Wherein have a kind of strong electret characteristic that has at least, injection moulding or extrusion molding are processed the collecting plate of many places gas channel then, and this collecting plate has memory function; Just can reach the effect of the desirable charged particle of seizure after the single high degree of polarization; So the collection assembly of dust after the high degree of polarization does not need continued power to get final product long-time continuous firing, general polarization only needs about 10 seconds, just can cut off the power supply about 15 minutes; Because the high voltage polarization time is very short, does not worry the generation of ozone, polarizing voltage can reach 30 kilovolts; Because collecting plate by high degree of polarization, therefore also has very strong electrostatic field, thereby has improved the single filtration efficient of collection assembly of dust;
2, owing to be the collecting plate of processing with the engineering plastics that the electret characteristic arranged, cleans very convenient, and repeatedly cleaning, this collecting plate can not lose the electret characteristic yet;
3, need each collecting plate not fixed, thereby avoid in use taking place the secondary pollution that the volatile solvent in the adhesive causes with adhesive; And technology is simple, and easy to assembly, production cost is low;
4, the periodic intermittent power supply of laws of use can be avoided on the collection assembly of dust electric charge to be cumulative too high and cause air breakdown to produce ozone and discharge noise; While also can be avoided the collecting plate dielectric material to be broken down by high-voltage and damage; And can obtain maximum polarizing voltage;
5, compare prior art filter net type clarifier; The windage of the utility model air cleaning unit is very low; Single filtration efficient is high; Head loses not quite when air-flow passes through the collecting plate of this air cleaning unit, thereby can adopt the motor-driven air-flow of low-power, low noise, further cuts down the consumption of energy and noise.
In sum; The utility model has that air cleaning unit and manufacturing approach thereof and the operation method of electret characteristic have that cost is low, filter efficiency good, energy-conserving and environment-protective, safe and reliable, windage is little, noise is little, convenience for washing and advantage such as easy to assembly, and can adopt periodic intermission power supply method; Reached beyond thought effect.
[
Description of drawings]
Fig. 1 is the axonometric projection sketch map of the utility model air cleaning unit that the electret characteristic is arranged;
Fig. 2 is the axonometric projection sketch map of housing 110 of the collection assembly of dust 100 of said air cleaning unit;
Fig. 3 is that collection assembly of dust 100 more than the sheet collecting plates 120 of said air cleaning unit are close to the axonometric projection sketch map that is superimposed, and each electrode 122 does not also connect among the figure;
Fig. 4 be 120 1 kinds of embodiment of said collecting plate totally eight be close to the axonometric projection sketch map that is superimposed, each electrode 122 has connected among the figure;
Fig. 5 is that eight collecting plates 120 shown in Figure 4 are close to the main sketch map of looking of the orthographic projection that is superimposed;
Fig. 6 is the axonometric projection sketch map of monolithic collecting plate 120 shown in Figure 4;
Fig. 7 be said collecting plate 120 another kind of embodiment totally eight be close to the axonometric projection sketch map that is superimposed, each electrode 122 has connected among the figure;
Fig. 8 is that eight collecting plates 120 shown in Figure 7 are close to the main sketch map of looking of the orthographic projection that is superimposed;
Fig. 9 is the axonometric projection sketch map of monolithic collecting plate 120 shown in Figure 7;
Figure 10 is the simple and easy control circuit principle schematic of said air cleaning unit;
Figure 11 is voltage and the time relation sketch map of a kind of embodiment of said air cleaning unit power supply mode;
Figure 12 is voltage and the time relation sketch map of the another kind of embodiment of said air cleaning unit power supply mode.
[specific embodiment]
Below in conjunction with each accompanying drawing the utility model is done further explain.
Referring to Fig. 1 to Figure 12, a kind of air cleaning unit that utilizes material electret characteristic control of dust comprises collection assembly of dust 100 and the high-voltage DC power supply 200 of this collection assembly of dust 100 that is used for polarizing; Said collection assembly of dust 100 comprises housing 110 and at least two collecting plates 120 that are arranged in this housing 110; Housing 110 comprises procapsid 112 and back casing 111; Said air cleaning unit also comprises the control logic module 300 of the output voltage amplitude, dutycycle and the repetition rate that are used to control said high-voltage DC power supply 200; Said collecting plate 120 is the collecting plates with strong electret characteristic; This collecting plate 120 is to mix at least two kinds of engineering plastics; Wherein has a kind of strong electret characteristic that has at least; Injection moulding or extrusion molding are processed then, which is provided with many places gas channel 121, and said collecting plate 120 outer surfaces lay electrode 122; The positive and negative output of said high-voltage DC power supply 200 correspondingly is electrically connected with the electrode 122 of each collecting plate 120 respectively; 200 pairs of said collection assembly of dust 100 of the said control logic module 300 said high-voltage DC power supplies of control apply periodic intermittent power supply, and each collecting plate 120 of promptly said collection assembly of dust 100 continues to add electric polarization a period of time T
1, continue another section of outage time T again
2,, so circulate, wherein T=T as one-period T
1+ T
2, T
2>>T
1, reducing corona discharge, avoid dielectric breakdown and to produce ozone, and obtain maximum polarizing voltage, can also save electric power.">> " meaning that is far longer than of expression.Said engineering plastics comprise polypropylene PP, polytetrafluoroethylene PTFE and polyvinylidene fluoride PVDF, wherein have the engineering plastics of strong electret characteristic to comprise polytetrafluoroethylene PTFE and polyvinylidene fluoride PVDF.Said electrode 122 comprises conductive film or conductive coating.T usually
1Be about 9～30 seconds, and 40 minutes>=T
2>=15 minutes, T
1And T
2Setting and the highest polarizing voltage U
0Also relevant, if the highest polarizing voltage U
0Height, then time T
1Short, and time T
2Long, if the highest polarizing voltage U
0Low, time T then
1Corresponding length a bit, and time T
2Corresponding weak point a bit; The highest polarizing voltage U of the utility model usually
0Be 18～35 kilovolts, its optimum value is 30 kilovolts.
The said dutycycle K of the utility model is that 200 pairs of each collecting plates of said high-voltage DC power supply 120 continue another section of outage time T
2With the ratio of one-period T, i.e. K=100%*T
2/ T, usually 95%≤this dutycycle K≤99.7%.
Said air cleaning unit also comprises can make airborne fine particulates charged ions generator, and makes the fan of airborne charged particle thing through collection assembly of dust 100, and ion generator and fan all are prior aries, are not giving unnecessary details at this.
Referring to Fig. 4 to Figure 10, only lay a plate electrode 122 on each collecting plate 120 respectively; Said electrode 122 is laid on the upper surface 123 of said collecting plate 120, is arranged on after the bending of one of which end with this upper surface 123 to constitute on the side 124 of seamed edges, and the other end then leaves the another side 125 1 segment distance L that constitute seamed edges with said upper surface 123
1, this distance L
1Can confirm according to relevant creep age distance in the national standard of air cleaning unit; Each collecting plate 120 is close to each other; Electrode 122 left and right sides intervening sequenceses of the two adjacent said collecting plates 120 that are close together are arranged; Be positioned at electrode 122 connections parallel with one another of each collecting plate 120 of the same side; Two strip electrode links 130,140 about formation, two strip electrode links 130,140 correspondingly are electrically connected with the positive and negative output of said high-voltage DC power supply 200 respectively about this.
Referring to Fig. 7 to Fig. 9; Each gas channel 121 of said collecting plate 120 comprises that cross sectional shape is hexagon, equally distributed many places, interval first gas channel 1211, and cross sectional shape is trapezoidal and is two second gas channels 1212 that stand upside down up and down between first gas channel 1211 of every adjacent hexagons shape.
Referring to Fig. 1, Fig. 3 to Fig. 5, Fig. 7 and Fig. 8; Every adjacent two collecting plates 120 are close to each other removedly and are put together; That is to say that every adjacent two collecting plates 120 need not adopt hot melt, adhesive is bonding or other modes are fixed, directly a slice collecting plate 120 is placed on another sheet collecting plate 120 to get final product.
Have the engineering plastics of strong electret characteristic to comprise polytetrafluoroethylene PTFE, its percentage by weight accounts for 0.1%～5%, as 1%～4%.Particularly mix with two kinds of engineering plastics, what strong electret characteristic was wherein arranged is polytetrafluoroethylene PTFE, and its percentage by weight accounts for 0.1%～5%, and as 1%～4%, remainder is the more weak polypropylene PP of electret characteristic; Can said polytetrafluoroethylene (PTFE) and polypropylene be mixed, make in the said collecting plate 120 after said polytetrafluoroethylene (PTFE) is evenly distributed on injection moulding or extrusion moulding.
Or, there are the engineering plastics of strong electret characteristic to comprise polyvinylidene fluoride PVDF, its percentage by weight accounts for 0.1%～5%, as 0.5%～4%.Particularly mix with two kinds of engineering plastics, that strong electret characteristic is wherein arranged is polyvinylidene fluoride PVDF, and its percentage by weight accounts for 0.1%～5%, and remainder is the more weak polypropylene PP of electret characteristic; Can said polyvinylidene fluoride and polypropylene PP be mixed, make in the said collecting plate 120 after said polyvinylidene fluoride is evenly distributed on injection moulding or extrusion moulding.
Referring to Figure 10 and Figure 11, when 200 pairs of said collection assembly of dust 100 of the said high-voltage DC power supply of said control logic module 300 controls polarize, divide N stepped powering up to be pressed onto the highest polarizing voltage U
0, and be pressed onto the highest polarizing voltage U powering up each time to be pressed onto a certain level polarizing voltage and to power up at last
0The time, all keep a period of time; That is to say, power up for the first time and be pressed onto first order polarizing voltage U
1, keep a period of time T
11, power up for the second time and be pressed onto second level polarizing voltage U
2, keep a period of time T
12..., power up until the N time and to be pressed onto the highest polarizing voltage U
0, keep a period of time T
10, N>=2 wherein, T
11﹢ T
12﹢ ... ﹢ T
1 (N-1)﹢ T
10=T
1, T
11﹢ T
12﹢ ... ﹢ T
1 (N-1)≤T
10Like the highest said polarizing voltage U
0It is 30 ± 3 kilovolts; Divide to power up at least five times and be pressed onto the highest polarizing voltage U
0, power up for the first time and be pressed onto first order polarizing voltage U
1Be 6 ± 1 kilovolts, keep a period of time T
11; Power up for the second time and be pressed onto second level polarizing voltage U
2Be 12 ± 1 kilovolts, keep a period of time T
12; Power up for the third time and be pressed onto third level polarizing voltage U
13Be 20 ± 1 kilovolts, keep a period of time T
13; Power up for the 4th time and be pressed onto fourth stage polarizing voltage U
14Be 25 ± 1 kilovolts, keep a period of time T
14; Reach the highest polarizing voltage U behind the 5th making alive
0=30 ± 3 kilovolts, keep a period of time T
10; T wherein
11﹢ T
12﹢ T
13﹢ T
14≤T
10, T
11﹢ T
12﹢ T
13﹢ T
14﹢ T
10=T
1; T usually
11Be about 1 second, T
12Be about 1 second, T
13Be about 1 second, T
14Be about 1 second, T
10Be about 5～7 seconds.
Or referring to Figure 10 and Figure 12, when 200 pairs of said collection assembly of dust 100 of the said high-voltage DC power supply of said control logic module 300 controls polarized, starting from scratch to power up continuously was pressed onto the highest polarizing voltage U
0, the slope of wherein starting from scratch with dv/dt rises to the highest polarizing voltage U continuously
0, need a period of time T
11', then at the highest polarizing voltage U
0The time, keep a period of time T
10', T wherein
11'≤T
10', T
11' ﹢ T
10'=T
1Usually dv/dt is 3.6～7.0 kilovolts/second.
Said control logic module 300 comprises sequence circuit; Polarizing voltage value when this sequence circuit is controlled blanking time and each section energising of energising, outage of said high-voltage DC power supply 200, said sequence circuit comprises programmable microprocessor MCU.The physical circuit of said control logic module 300 is a prior art in the electron controls technology field, is not giving unnecessary details at this.
Embodiment one:
Referring to Fig. 1 to Figure 11; Every collecting plate 120 comprises that polypropylene PP and the polytetrafluoroethylene PTFE that strong electret characteristic is arranged mix the back injection moulding and process; Wherein the part by weight of polytetrafluoroethylene PTFE is 2%, processes the every collecting plate 120 in back and is of a size of: thick 2.5 millimeters of long 220 millimeters wide 30 millimeters X of X; Every suit collection assembly of dust 100 comprises 44 collecting plates 120; Whole air cleaning unit comprises two cover collection assembly of dust 100, and its total available ventilation area is 31684 square millimeters; The power of motor that is used for driving the fan of wind-force is 30 watts.200 pairs of said collection assembly of dust 100 of the said high-voltage DC power supply of said control logic module 300 controls adopt periodic intermission power supply method, the highest polarizing voltage U
0Be 30 kilovolts, power-up period T is 20 minutes and 10 seconds, divides to power up for five times to be pressed onto the highest polarizing voltage U
0, wherein power up for the first time and be pressed onto first order polarizing voltage U
1Be 6 kilovolts, keep a period of time T
11=1 second; Power up for the second time and be pressed onto second level polarizing voltage U
2Be 12 kilovolts, keep a period of time T
12=1 second; Power up for the third time and be pressed onto third level polarizing voltage U
13Be 20 kilovolts, keep a period of time T
13=1 second; Power up for the 4th time and be pressed onto fourth stage polarizing voltage U
14Be 25 kilovolts, keep a period of time T
14=2 seconds; Slow-start time T just
11﹢ T
12﹢ T
13﹢ T
14Be total up to 5 seconds; Power up for the 5th time and be pressed onto the highest polarizing voltage U
0=30 kilovolts, keep a period of time T
10=5 seconds; Free time (be that collecting plate 120 high voltage supplies break off, the voltage on it is zero) is: 20 minutes; The dutycycle K=100%*T of present embodiment
2/ T=99.2%; According to U.S. AHAM (is the abbreviation of English Association of Home Appliance Manufacturers; Be U.S. household electrical appliances AEM) testing standard; Record cleaning efficiency CADR (be the abbreviation of English Clean Air Delivery Rate, i.e. the speed seen off of per minute clean air) value and be 140CFM (cubic feet/min).
Embodiment two:
Referring to Fig. 1 to Figure 10 and Figure 12, basic identical with embodiment one, different is that said control logic 300 makes 200 pairs of said collection assembly of dust 100 of said high-voltage DC power supply adopt periodic intermission power supply method different; The highest polarizing voltage U of present embodiment
0Be 20 kilovolts, power-up period T is 15 minutes and 25 seconds, powers up continuously from zero and is pressed onto the highest polarizing voltage U
0, the slope of wherein starting from scratch with dv/dt=4 kilovolt/second rises to the highest polarizing voltage U continuously
0=20 kilovolts need a period of time T
11', this time T
11' be the slow-start time, be total up to 5 seconds, power up at last and be pressed onto the highest polarizing voltage U
0=20 kilovolts, keep a period of time T
10'=20 seconds; Free time (be that collecting plate 120 high voltage supplies break off, the voltage on it is zero) is: 15 minutes, and the dutycycle K=100%*T of present embodiment
2/ T=97.3%; According to U.S. AHAM testing standard, record cleaning efficiency CADR value and be 120CFM.
And the prior art air cleaning unit; Under the identical situation of the power of motor of filter screen draught area, depth dimensions and fan,, adopt the mode that continues high voltage supply owing to underuse the characteristic of electret; For avoiding dielectric breakdown, polarizing voltage is no more than 15 kilovolts usually; According to U.S. AHAM testing standard, recording cleaning efficiency CADR value is 90 CFM.The cleaning efficiency CADR value of the air cleaning unit of the utility model embodiment two has improved (120-90)/90=33.3% than the cleaning efficiency CADR value of prior art air cleaning unit; The cleaning efficiency CADR value of the air cleaning unit of embodiment one has improved (140-90)/90=55.6%, and filter efficiency is fairly good; And the utility model air cleaning unit also has that cost is low, energy-conserving and environment-protective, safe and reliable, windage is little, noise is little, convenience for washing and advantage such as easy to assembly.
The utility model air cleaning unit application comprises family expenses, commercialization and vehicular air purifier, and air-conditioning, family expenses air exchange system, fan and other have the family expenses or the commercial appliance equipment of air-cleaning function.
The above embodiment has only expressed the preferred implementation of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model; Therefore, all equivalents and modifications of being done with the utility model claim scope all should belong to the covering scope of the utility model claim.
Claims (4)
1. an air cleaning unit that utilizes material electret characteristic control of dust comprises collection assembly of dust (100) and the high-voltage DC power supply (200) of this collection assembly of dust (100) that are used for polarizing; Said collection assembly of dust (100) comprises housing (110) and is arranged at least two collecting plates (120) in this housing (110); It is characterized in that:
The control logic module (300) that also comprises the output voltage amplitude, dutycycle and the repetition rate that are used to control said high-voltage DC power supply (200); Said collecting plate (120) is the collecting plate with strong electret characteristic, which is provided with many places gas channel (121), and said collecting plate (120) outer surface lays electrode (122); The positive and negative output of said high-voltage DC power supply (200) correspondingly is electrically connected with the electrode (122) of each collecting plate (120) respectively; Said control logic module (300) is controlled said high-voltage DC power supply (200) said collection assembly of dust (100) is applied periodic intermittent power supply, and each collecting plate (120) of promptly said collection assembly of dust (100) continues to add electric polarization a period of time T
1, continue another section of outage time T again
2,, so circulate, wherein T=T as one-period T
1+ T
2, T
2>>T
1
2. the air cleaning unit that utilizes material electret characteristic control of dust according to claim 1 is characterized in that:
Only lay a plate electrode (122) on each collecting plate (120) respectively; Said electrode (122) is laid on the upper surface (123) of said collecting plate (120); Be arranged on after the bending of one of which end with this upper surface (123) and constitute on the side (124) of seamed edge, the other end then leaves another side (125) one segment distance (L that constitute seamed edge with said upper surface (123)
1); Each collecting plate (120) is close to each other; Electrode (122) left and right sides intervening sequences of the two adjacent said collecting plates (120) that are close together is arranged; Be positioned at electrode (122) connection parallel with one another of each collecting plate (120) of the same side; Two strip electrode links (130,140) about formation, two strip electrode links (130,140) correspondingly are electrically connected with the positive and negative output of said high-voltage DC power supply (200) respectively about this.
3. the air cleaning unit that utilizes material electret characteristic control of dust according to claim 1 is characterized in that:
Each gas channel (121) of said collecting plate (120) comprises that cross sectional shape is hexagon, equally distributed many places first gas channels (1211) at interval, and is positioned at that cross sectional shape is trapezoidal and is two second gas channels (1212) that stand upside down up and down between first gas channel (1211) of every adjacent hexagons shape.
4. according to each described air cleaning unit that utilizes material electret characteristic control of dust of claim 1 to 3, it is characterized in that:
Every adjacent two collecting plates (120) are close to each other removedly and are put together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220152918 CN202606276U (en) | 2012-04-12 | 2012-04-12 | Air purification device for collecting dust by virtue of electret characteristics of material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220152918 CN202606276U (en) | 2012-04-12 | 2012-04-12 | Air purification device for collecting dust by virtue of electret characteristics of material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202606276U true CN202606276U (en) | 2012-12-19 |
Family
ID=47340009
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220152918 Expired - Fee Related CN202606276U (en) | 2012-04-12 | 2012-04-12 | Air purification device for collecting dust by virtue of electret characteristics of material |
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| Country | Link |
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| CN (1) | CN202606276U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214844A (en) * | 2014-06-09 | 2016-01-06 | 黄河 | A kind of multilayer electrostatic air filtration plate |
| WO2020083257A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Air dust removal system and method |
| CN113286659A (en) * | 2018-10-22 | 2021-08-20 | 上海必修福企业管理有限公司 | Air dust removal system and method |
-
2012
- 2012-04-12 CN CN 201220152918 patent/CN202606276U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214844A (en) * | 2014-06-09 | 2016-01-06 | 黄河 | A kind of multilayer electrostatic air filtration plate |
| WO2020083257A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Air dust removal system and method |
| WO2020083131A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | System and method for removing dust from engine intake air |
| CN113286659A (en) * | 2018-10-22 | 2021-08-20 | 上海必修福企业管理有限公司 | Air dust removal system and method |
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