CN105983486B - A kind of air cleaning high-pressure ion electret purification device and air cleaning unit - Google Patents
A kind of air cleaning high-pressure ion electret purification device and air cleaning unit Download PDFInfo
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- CN105983486B CN105983486B CN201510044044.9A CN201510044044A CN105983486B CN 105983486 B CN105983486 B CN 105983486B CN 201510044044 A CN201510044044 A CN 201510044044A CN 105983486 B CN105983486 B CN 105983486B
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Abstract
The invention discloses a kind of effectively ionized driving+electret filter technique devices, when by least one corona electrode occurs for the air of air inlet, gas particles in air are ionized, particle after ionization is adsorbed on passive electrode by the attraction with corona electrode opposite potential passive electrode, after the particle of part charged ion crosses passive electrode, the ion stream gas particles of this part electrification evolution passive electrode enter electret filter film and give electret bulk charging.The electret dipole for making to be neutralized malalignment in electret after electricity regains energy and marshalling, shows effective adsorption capacity more powerful than ordinary passive electret to dust granule.Therefore the ion stream electrode structure that the present invention passes through optimization, the stronger offer electrical pump energy more brilliant than ordinary electrode, improve the ability of sterilization, dispel toxic gas and the suction-operated to particles such as dusts, a kind of low windage is provided to air purification field, energy conservation, height sterilization, high adsorption efficiency air filter.
Description
Technical field
The present invention relates to air cleaning unit more particularly to a kind of air cleaning high-pressure ion electret purification devices and sky
Air purifying apparatus.
Background technique
The prior art as shown in Figure 1 (such as U.S. Patent No. No. 4689056 and No. 5055118), it is net to describe static air
Change device equipment and accelerates to grit charging electric charge and be collected with the ion and air of corona discharge generation.Equipment utilization is in electricity
The dizzy principle of corona discharge that pole ion side occurs.This corona discharge is as occurring caused by the high pressure between pole and collector
High field causes.Ion is mutually collided with surrounding air molecule, and the kinetic energy of ion is transmitted to air, causes air consistent
Movement to the air mass motion needed for being formed on direction.
Above-mentioned ion air purification device enables to air movement, sterilization, collects dust and eliminates pernicious gas,
But dust collecting effect, the effect for dispelling TVOC are limited by voltage and ozone, since electric field strength is too high, be easy to cause sparking,
A large amount of ozone is generated simultaneously；The too low then collection efficiency of electric field strength is poor.These factors restrict single static purification and exist
Application in high request environment.
In view of existing single static purification is limited by voltage and ozone, produce later a kind of compound
The cleaning equipment of referred to as electric bag unification, is shown in Fig. 2.This comprehensive purification device overcomes general electrostatic filter purification effect
The low disadvantage of rate, but new problem is brought, if filter mesh is too big, clean-up effect is poor；If filter mesh is too small,
Windage is too big, and then enabled loss-rate degradation.
Summary of the invention
In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a kind of air cleaning high-pressure ion electric fields
In addition the purification device of electrostatic electret filter material, to solve, above-mentioned ionic decontamination devices clean-up effect is limited and Energy Efficiency Ratio
The problem of declining to a great extent.
In order to achieve the above objectives, the technical scheme is that：
A kind of air cleaning high-pressure ion electret purification device, the air cleaning high-pressure ion electret purification device
Including at least one clean unit, that is, ion electrode group, the ion electrode group includes and successively sets according to the direction that air flows
It sets with lower component：
Electrode occurs at least one corona, at least one described corona occurs electrode and has and collector institute band potential
The potential of opposite direction；
At least two collectors, the collector have and corona electrode opposite potential；
At least one electret being made of electret filter film；
When the air of air inlet is ionized by least one, and pole corona electrode occurs, the gas particles in air are electric
From the particle after ionization is adsorbed on collector by the attraction with corona electrode opposite potential collector, works as part ion
After the particle of change crosses collector, the ion stream gas particles of this part electrification evolution collector enter electret filter film to staying
Polar body charging, the dipole for making to be neutralized malalignment after electricity regains energy and marshalling, thus to dust granule
Show effective adsorption capacity more powerful than ordinary passive electret.
Further, every group of ion electrode group includes a series of Filamentous corona electrode of multiple electrical connections, each
Corona electrode is parallel to each other, and the ionization side of all corona electrodes is distributed in the same plane, between neighboring corona electrodes
Distance is D1；
Electrode with corona electrode interaction is two or more collectors, is parallel to each other between each collector,
Each collector includes that plate part and each collector are arc-shaped towards corona electrode direction and have arc independent
The ionization side of shape, the collector series are respectively in the left and right sides in corona electrode downstream, extremely each self-ionization side institute of series of collection
The plane of formation and corona electrode silk series ionization side are formed by that plane is parallel, and the distance between adjacent collector pole is D2；Institute
State D1 distance >=D2 or≤2*D2-1；
The plate part of the collector is formed by plane with Filamentous corona electrode series ionization side and is mutually perpendicular to, by electricity
Plan range determined by plane determined by dizzy electrode series and collector series ionization side is D3, and D3 is not more than 3*D2；Institute
It states collector and possesses orthogonal length and height dimension, to adjust lateral air-flow direction；
The electret is formed by the plane that plane is formed by with collector series end face and is parallel to each other, and is separated by certain
Space length；The ion stream for crossing the collector becomes the charging electric pump of electret dipole.
Further, the corona occurs pole and is made by conductive filament, preferably tungsten wire, plating filamentary silver, plating spun gold, molybdenum filament,
Filamentary silver or spun gold or in which two or more braidings are mutually entwined, and diameter range is
Further, the collector group is made of at least two collectors, and each collector includes flake main body and piece
The leading edge of shape main body is cylindric towards corona electrode direction, is a circular cylinder protrusion, top view is shown as one closely
Circular pattern；Preferably, the cross-sectional diameter of the collector cylindrical body is 3-8mm, the sheet master being connected with cylindrical body
Body with a thickness of 0.5-1mm, it is preferred that prepared by the collection extremely conductive material, such as aluminium, copper, stainless steel, graphite, conductive modeling
Material or their composite material.
Further, the collector is made of at least one collector component, and different collector components have different
Resistance coefficient；Preferably, the collector component of the collector is arranged from high to low according to resistance coefficient, and flowed with air
Direction is consistent or reversed；Preferably, all collector equipotential links；Preferably, it is sent out on the collector apart from corona
A farthest collector component of raw pole side is equipped with the contact being connected with power output end.
Further, it is connected between the component of the adjacent collector pole by slot or jack；Preferably, the adjacent collector
It is mutually not in contact with each other between the component of pole.
Further, the corona electrode connection positive pole or ground connection, the collector ground connection or connection power cathode；
Preferably, it the corona electrode and/or collects extremely non-combustible and conductive metal material and is made.
Further, the electret is the high molecular polymer mistake with Electrostatic Absorption performance after being polarised
Filter material material, polarization intensity is generated when integrally all dipoles all arrange consistent much smaller than electret filter material to be saturated by force
Degree, using crossing the ion stream of collector to the electret bulk charging, to play the role of an electret electric pump.The present invention
Used electret is a kind of novel high molecular polymer filtering material with Electrostatic Absorption performance, is coming into operation it
These preceding electret filter materials have carried out polarization process using corona method etc., by the polarization of the electret handled in this way
Intensity is much smaller than electret filter material generated saturation intensity when integrally all dipoles all arrange consistent.In these electrets
10 can be about obtained in body filtering material-2μC/m2Polarization intensity.These electret filter materials are relaxation time longer places
In the dielectric that metastable state has polarized.When removing extra electric field, polarization intensity can be gradually reduced, its surface charge is just pressed
Exponential law is gradually decayed close to exponential law.
The present invention is exactly to be directed to this characteristic of electret to carry out energy supplement to electret, using cross collector from
Subflow charges to electret filter material, to play the role of an electret filter material electric pump.
According to the calculation formula of electrostatic field potential, φ A=Ep/q.It is understood that certain puts opposite 0 electricity of reference point in the electric field
The difference of gesture is the potential of the point." potential that certain in electric field is put is numerically equal to unit positive charge electricity possessed by that point
Potential energy ".
Formula：ε=q φ (wherein ε is energy of position, and q is the quantity of electric charge, and φ is potential), i.e. φ=ε/q
Potential energy in electrostatic field.The difference of some charges energy of position of certain two o'clock (such as A point and B point) in electrostatic field is equal to it
When being moved to another B point from A point, function made by electrostatic force.Therefore (E is the electric field strength of the point to WAB=qEd, and d is along electric field line
Distance),
Energy of position can be done work by electric field force and be acquired, because of W AB=qUAB=q (Φ A- Φ B)=q Φ A-q Φ B=EA
(first) -- Eb (end)=- Δ E,
(Φ is potential, and q is the quantity of electric charge, and U is potential difference, and EA (first), EB (end) are the energy of position of two points).
According to the elaboration above to electrostatic field potential formula, it is clear that ground is seen, collector and electret filter material
Between physical distance be equivalent to the point of the A in electrostatic field (collector) and B point (electret filter material), as A point energy of position φ
Distance d is bigger in the case where locking, and quantity of electric charge q is smaller.
Further, directly proportional to the intensity of ion electric field to the polarization intensity of electret, and work as ion electric field strength
One periodically, polarized electric field intensity suffered by these electret filter materials and electret filter material plane and collection pole piece electricity
Physical distance from side plane is inversely proportional.
Further, the present invention is according to the polarity effect of different electrets, and electret mesh is different, and not
Same ion electric field strength by adjusting electret filter material and is collected at a distance from pole piece ionization side plane, is obtained optimal
Sterilization, taste removal and dust adsorption effect.
Preferably, the electret is prepared by Polymer electrets material or high-insulativity fluoropolymer material, such as poly- four
Vinyl fluoride (PTFE), FEP fluorinated ethylene propylene copolymer (FEP), Kynoar (PVDF) etc. or their composite material.
The present invention also provides a kind of air cleaning unit, the air cleaning unit includes above-mentioned air cleaning high pressure
Ion electret purification electrode assembly, and electrode occurs and collect electrode potential and therebetween for supplying above-mentioned corona
Generate the power supply for causing the electric field of corona discharge.
It is an advantage of the invention that：Electrostatic force is generated due to the neutralization of charged particles in atmospheric dust or due to dust calmness
Shielding action, the polarization phenomena that will lead to electret weaken or disappear, so that its is lost suction-operated to dust particles, in order to
So that electret is regained energy and form strong electret, dust granule is presented in the polarization arrangement for needing to keep its neat
Effective adsorption capacity more powerful than ordinary passive electret out.The invention enables the air when air inlet to pass through at least one electricity
When from pole corona electrode occurs, the gas particles in air are ionized, the particle after ionization by with corona electrode opposite potential
The attraction of collector and be adsorbed on collector, after the particle of partial ionization crosses collector, this part electrification evolution receive
The ion stream gas particles of collector enter electret filter film and give electret bulk charging, make to be neutralized the dipole of malalignment after electricity
Son regains energy and marshalling, to show effective absorption more powerful than ordinary passive electret to dust granule
Ability, the invention using the gas particles of electrode ionization air as a kind of electric pump to electret bulk charging.This hair
The bright electric pump by ion electrode structure acts on, and further improves the suction-operated to particles such as dusts, and to germ
The function of killing again compensates for the defect that ion electrode dust collecting effect is not so good as HEPA filter screen, while electret being utilized again
Because the effect filtering eyelet of electrostatic field makes electret filter material windage there was only same filter effect HEPA high without too small
Imitate the one third or so of filter screen.
The present invention provides one kind to air purification field, low windage, energy conservation, high adsorption efficiency, sterilization air filtration
Device.
Detailed description of the invention
Fig. 1 is the electrostatic depuration electrode assembly schematic diagram of the prior art；
Fig. 2 is the compound electric bag unification purification device schematic diagram of the prior art；
Fig. 3 is air cleaning high-pressure ion electret operation principle schematic diagram；
Fig. 4 is the schematic diagram for the electrode that electrode and collector composition occur for corona；
Fig. 5 is a kind of schematic diagram of air purifier.
In figure：Corona occur electrode 2, collector 3, electret 4, ionization side 302, plate part 301, high voltage power supply 100,
A set of a series of electrode 200 (being made of power electrodes 2 and a series of collectors 3), electret that can produce high-pressure ion electric field
Filter 400 (being made of electret 4), without photocatalyst 500, total-heat exchanger 600 and low-noise fan 700, primarily efficient filter
Net 800, corona ion plasma 203, electron collision generate the ion of ionization 204, monopole drift region 205, photo-ionisation 206, evolution
4-2, polarized electric field 4-3 after 4-1, electret polarize before flowing (electric pump source) 207, ionizing boundary 208, electret polarization.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
The present invention provides a kind of air cleaning high-pressure ion electret purification device, is used to prepare air purifier, such as Fig. 3
With shown in Fig. 4, the air cleaning high-pressure ion electret purification device includes at least one clean unit i.e. ion electrode group,
The ion electrode group includes and sets gradually according to the direction that air flows with lower component：
Electrode 2 occurs at least one corona, at least one corona generation electrode has to be charged with the collector
The potential of gesture opposite direction；
At least two collectors 3, the collector have and corona electrode opposite potential；
At least one electret 4 being made of electret filter film；
When the air of air inlet is ionized by least one, and pole corona electrode 2 occurs, the gas particles in air are electric
From, the particle after ionization is adsorbed on collector 3 by the attraction with corona electrode opposite potential collector 3, when part from
After the particle of sonization crosses collector 3, the ion stream gas particles of this part electrification evolution collector 3 enter the filtering of electret 4
Film gives electret 4 to charge, and the dipole for making to be neutralized malalignment after electricity regains energy and marshalling, thus to ash
Dirt particle shows effective adsorption capacity more powerful than ordinary passive electret 4.Due to it than passive electret have it is stronger
Adsorption capacity, so the requirement to electret is lower, while reducing power source special and control than common active electret
Circuit occurs the ion that electrode ionizing air generates using corona to pump electricity for electret, is provided with whole system and expects not
The effect arrived.
In addition to selecting traditional various electrode styles, in practical applications, electrode 2 occurs for corona can be using Filamentous electricity
Pole, specifically, every group of ion electrode include a series of Filamentous corona electrode of multiple electrical connections, each corona electrode
It is parallel to each other, in the same plane, the distance between neighboring corona electrodes are D1 for the ionization side distribution of all corona electrodes.
Meanwhile the electrode to interact with corona electrode is two or more collectors 3, phase between each collector 3
It is mutually parallel, it, can also be using such as flowering structure in addition to selecting traditional collector style：Each collector 3 includes plate part 301
(also referred to as flake main body) and each collector towards 2 direction of corona electrode be it is arc-shaped and with arc independent electricity
From side 302,3 series of collector is respectively in the left and right sides in corona electrode downstream, each self-ionization side 302 in series of collection pole 3
It is formed by plane and corona electrode silk series ionization side and is formed by that plane is parallel, and the distance between adjacent collector pole 3 is D2；
D1 distance >=the D2 or≤2*D2-1；2 system of the plate part 301 (flake main body) of the collector 3 and Filamentous corona electrode
Column ionization side is formed by plane and is mutually perpendicular to, 3 series ionization side of the plane determined by 2 series of corona electrode and collector
Plan range determined by 302 is D3, and D3 is not more than 3*D2；The collector 3 possesses orthogonal length and height dimension,
To adjust lateral air-flow direction；The electret 4 is formed by the another of the serial plate part 301 of plane and collector 3
The plane that the end face of one end is formed by is parallel to each other, and is separated by certain space length；Cross the ion stream of the collector 3 at
For the charging electric pump of 4 dipole of electret.
In practical applications, the corona occurs pole 2 and is made by conductive filament, preferably tungsten wire, plating filamentary silver, plating spun gold,
Molybdenum filament, filamentary silver or spun gold or in which two or more braidings are mutually entwined, and diameter range isBetween (contain) any value.Such as 0.03mm, 0.05mm and 0.1mm etc..According to the release of ozone
Amount accumulated by discharging surface, and with discharge current=i2Relationship, prepare corona occur pole 2 conductive filament the thinner ozone of diameter
Burst size it is fewer, it is contemplated that mechanical strength and electrical effect can chooseThe corona illustrated in Fig. 4 occurs
Totally 2, electrode, collector 3 shares three pieces, is separated from each other between adjacent collector 3, and each collector 3 is parallel to each other,
The distance between plate part 301 of collector 3 is D2.Shown in Fig. 4 one group of corona electrode silk 2 combination generate plane with
Plan range caused by arc ionization 302 series of side of collector 3 is D3, and the distance of D3 is according to electric field strength, sparking, smelly
Oxygen generation, insulating materials creepage distance are formulated referring to the comprehensive factor mutually restricted such as UL867 standard.One air cleaning
High-pressure ion electret purification device should provide air filtration efficiency as high as possible, while should not generate extra ozone,
The regulation that UL867 standard is 37, ozone value should not exceed 50ppb/m3.Above-mentioned related standard is followed, according to using 12,000
The experiment of the ion-conductance field ionization source of volt shows D3 distance between 3*D2-4*D2；This collector possess orthogonal length and
Height dimension, to adjust and be oriented to the direction of air flowing, it is contemplated that the effect of ion stream vortex and the density of ion electric field,
2*D2 is used in D1 D2 and D1 2*D2, Fig. 4.
According to actual needs with the needs of promotion absorption particulate matter, in some embodiments, the collector group is by least
Two compositions of collector 3 (being 3 in Fig. 4), each collector 3 includes flake main body (i.e. plate part 301) and flake main body
Leading edge towards corona electrode direction be it is cylindric, (its cylinder just constitutes the electricity of arc-shaped to an as circular cylinder protrusion
From side 302), top view is shown as the pattern of a near circular；In practical applications, the cross section of the collector cylindrical body
Diameter may be selected (to contain) any value between 3-8mm, it is therefore an objective to which the threshold for improving corona discharge breakdown enables this ion electric pump
The safe work under higher electric field strength, while also supplying more sufficient energy for next stage ion electric pump and providing safeguard.
The thickness for the flake main body being connected with cylindrical body may be selected to be between 0.5-1mm and (contain) any value, in terms of material selection, institute
Collector 3 is stated for conductive material preparation, such as aluminium, copper, stainless steel, graphite, conductive plastics or their composite material.
In other embodiments, the collector 3 is made of at least one collector component, different collector components
With different resistance coefficients；Wherein, the scheme of optimization is, the collector component of the collector according to resistance coefficient by height to
Low arrangement, and it is consistent or reversed with the direction of air flowing.The purpose of this arrangement is the distribution according to space electric field to electrification
The interception of ion dust granule is related, it is understood that the intensity of ion stream and the intensity of space electric field are consistent, resistivity
Change so that ion stream i is also changed, the high component of resistivity is just high in space electric field pressure drop obtained, and interdiction capability is just
By force, otherwise it is just weak.
As needed, all collector equipotential links be can choose；Preferably, apart from corona on the collector
A farthest collector component of pole side occurs and is equipped with the contact being connected with power output end.In equipotential link,
Because of the problem of without the concern for voltage difference, it is the most reasonable side of installation that a farthest collector component, which connects power output end,
Method,
For the ease of installation, disassembly and maintenance, can choose between the component of the adjacent collector pole through slot or jack
Connection.
In order to improve adsorption efficiency, mutually it is not in contact with each other between the component of the adjacent collector pole.
In practical applications, the corona electrode connection positive pole or ground connection, the collector ground connection or connection power supply
Cathode；Preferably, it the corona electrode and/or collects extremely non-combustible and conductive metal material and is made.
In fact, the high-pressure ion purged electrode structure provides a kind of electric pump for electret filter material.It is to staying
The polarization intensity of polar body is directly proportional to the intensity of ion electric field；Preferably, the electricity of polarization suffered by the electret filter material
Field intensity is inversely proportional with electret filter material plane and the physical distance of collector plate plane；Preferably, the electret is
Polymer electrets material or the preparation of high-insulativity fluoropolymer material, as polytetrafluoroethylene (PTFE) (PTFE), fluorinated ethylene propylene (FEP) are copolymerized
Object (FEP), Kynoar (PVDF) etc. or their composite material.
From foregoing invention content part it is known that the polarized state of electret filter material initialization when by preparing
After method determines, its polarization intensity is directly proportional to ion electric field strength in the dynamic duty of filtering, that is, the electret is quiet
Voltage of electric field and the adjacent physical distance D0 collected between pole piece are directly proportional in a certain range, with the electret
Filter membrane is inversely proportional with collector physical distance.When electret filter material is electric due to charging in atmospheric dust in purification work
The neutralization of lotus or due to dust calmness generate electrostatic force shielding action cause polarization phenomena weaken or disappear when, this programme
The high-pressure ion electrode assembly of recommendation, which is formed by part, which will cross the ion stream of collector, to fill electret filter material
Electricity is equal to extra electric field to the polarization process of electret filter material, polarity effect is made to be in the electret filter being attenuated
Material forms the dipole subgroup of strong proper alignment because regaining energy, and neat polarization is arranged to dust granule
Show effective adsorption capacity more powerful than ordinary passive electret.As shown in figure 3, gas particles and dust in air
Grain (ionization boundary is 208) after the corona ion plasma 203 that pole 2 generates occurs for corona, electron collision generates ionization and generates
Charged particle 204 enters the range of collector 3, most of dust particle quilt after photo-ionisation 206 and monopole drift region 205
Adsorption filtration, gas particles are charged in part and dust granule passes through collector 3, these charged particles are exactly the ion stream escaped
(electric pump source) 207 pairs of electrets 4 charge, and under the action of polarized electric field 4-3, electret polarizes what preceding 4-1 was shown from electret
Arrange mixed and disorderly dipole become dipole marshalling electret polarization after 4-2, to substantially increase the suction of electret
Attached effect, the dust granule capture filter that will escape out, further increases air purification effect.
Therefore the scheme that the present invention recommends is acted on by the electric pump of high-pressure ion electrode assembly, is further improved to dust
The suction-operated of equal particles, and to the function of killing again of germ, ion electrode dust collecting effect is compensated for not as good as HEPA mistake
The defect of strainer, while electret being utilized again because the effect of electrostatic field filters eyelet without too small to make electret filter material
Material windage only has the one third or so of same filter effect HEPA high efficiency particulate air.
The present invention also provides a kind of air cleaning unit, the air cleaning unit includes above-mentioned air cleaning high pressure
Ion electret purification electrode assembly high-pressure ion electret purification electrode assembly, and occur for supplying above-mentioned corona
Electrode and collection electrode potential simultaneously generate the power supply for causing the electric field of corona discharge therebetween.
As shown in figure 5, our this air cleaning units are referred to as air cleaning high-pressure ion electret fresh air system.This case
Example the new blower of high-pressure ion electret include：Primary efficient filter screen 800 (optional), high voltage power supply 100, it is a set of can produce high pressure from
A series of electrode 200 (being made of power electrodes 2 and a series of collectors 3) of sub- electric field, electret filter 400 are (by electret
Body 4 form), without photocatalyst 500 (optional), total-heat exchanger 600 (optional) and low-noise fan 700 (optional).Wherein institute
Stating can produce the electrode assembly of high-pressure ion electric field and is made of a series of power electrodes 2 and a series of collectors 3, as shown in figure 4,
The corona electrode 2 and the collector 3 in air port under the corona electrode 2, this group of electrode are set by being electrically connected to
High voltage power supply 100, and form between the corona electrode 2 and the collector 3 ten thousand volts or more of high pressure.
The collector 3 ionizes side 302, purpose towards the garden arc that one end that pole 2 occurs for corona is a diameter of phi 5mm
Be improve corona discharge breakdown threshold, the work for keeping this ion electric pump safe under higher electric field strength, while
More sufficient energy is supplied for next stage ion electric pump to provide safeguard.
Most of dust and germ should be killed and adsorb in this treatment facilities, but according to different environment with
Wind speed, still some ion charged particles, a part of dust cross collector and escape into next filtering body, but can be stayed
Polar body 4 absorbs and filter.
Electret filter material be it is a kind of polarized in advance by corona method or other means, but we are from foregoing invention
Content can be clearly seen that electret filter material is a kind of dielectric that metastable state has polarized.When removing outer power-up
When field, polarization intensity can be gradually reduced, its surface charge just exponentially or close to exponential law gradually decays.So
The scheme that the present invention recommends is exactly based on the ion stream for crossing collector in Fig. 3 and carries out charging process to the electret 4 of decaying,
Make dipole in electret filter material proper alignment again, to make up the decaying of polarization intensity.
According to the Gauss theorem of electrostatic field, the field strength and surface potential of electret are
【- E+Es ε r=...】
According to the loop theorem of electrostatic field：
Ed+EsL=0 (2)
It solves：
Above formula E indicates the field strength in air gap due to two electric pole short circuits, and the potential difference between two surface of electret should be equal to electret
The potential difference at air gap both ends between body surface face and electrode, the as surface potential of electret, absolute value are represented by
In actual measurement, there is L < < d, then with the surface potential indicated under this condition, have
According to field strength prediction equation show electret surface potential be only determined by its Equivalent Surface surface density of charge and itself
Permeability-thickness.
We pass through special surface potential meter to the surface potential measurement of electret in an experiment, cooperate the anti-of sensor
Current feed circuit, we obtain from experiment, and when corona electrode is at 12000 volts, the D2 of collector is in 8mm, D3=20mm, collector it is flat
Plate part broadband in 38mm, electret filter material plane and collector backwards to corona electrode one end plan range in 30mm
All it is enough the polarizability of dynamic supplement electret filter material decaying to the distance of 50mm.The release of this programme is led to fresh air system
Domain provides one kind, low windage, energy conservation, high adsorption efficiency, sterilization fresh air air cleaning system.
It is an advantage of the invention that：Electrostatic force is generated due to the neutralization of charged particles in atmospheric dust or due to dust calmness
Shielding action, the polarization phenomena that will lead to electret weaken or disappear, so that its is lost suction-operated to dust particles, in order to
So that electret is regained energy and form strong electret, dust granule is presented in the polarization arrangement for needing to keep its neat
Effective adsorption capacity more powerful than ordinary passive electret out.The invention enables the air when air inlet to pass through at least one electricity
When from pole corona electrode occurs, the gas particles in air are ionized, the particle after ionization by with corona electrode opposite potential
The attraction of collector and be adsorbed on collector, after the particle of partial ionization crosses collector, this part electrification evolution receive
The ion stream gas particles of collector enter electret filter film and give electret bulk charging, make to be neutralized the dipole of malalignment after electricity
Son regains energy and marshalling, to show effective absorption more powerful than ordinary passive electret to dust granule
Ability, the invention using the gas particles of electrode ionization air as a kind of electric pump to electret bulk charging, and
It is a kind of electric pump that can be adjusted by high pressure and physical distance.The present invention is acted on by the electric pump of ion electrode structure, further
The suction-operated to particles such as dusts is improved, and to the function of killing again of germ, compensates for ion electrode dust effect
Fruit is not so good as the defect of HEPA filter screen, while electret being utilized again because the effect of electrostatic field filters eyelet without too small to make
Electret filter material windage only has the one third or so of same filter effect HEPA high efficiency particulate air.
The present invention provides one kind to air purification field, low windage, energy conservation, high adsorption efficiency, sterilization air filtration
Device.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (16)
1. a kind of air cleaning high-pressure ion electret purification device, which is characterized in that including at least one clean unit i.e. from
Sub-electrode group, the ion electrode group include and set gradually according to the direction that air flows with lower component：
At least one corona electrode, the corona electrode have with collector the electricity with potential Yu corona electrode opposite direction
Gesture；
At least two collectors, band and corona electrode opposite potential in the collector；
At least one electret being made of electret filter film；
When the air of air inlet passes through at least one corona electrode, the gas particles in air are ionized, the particle after ionization
It is adsorbed on collector by the attraction with corona electrode opposite potential collector, when the particle of partial ionization crosses collection
After extremely, the ion stream gas particles of this part electrification evolution collector enter electret filter film and give electret bulk charging, make by
Energy is regained and marshalling with the dipole of malalignment after electricity, compares ordinary passive to show to dust granule
The more powerful effective adsorption capacity of electret；
Every group of ion electrode group includes a series of Filamentous corona electrode of multiple electrical connections, each corona electrode is mutually flat
Row, in the same plane, the distance between neighboring corona electrodes are D1 for the ionization side distribution of all corona electrodes；
Electrode with corona electrode interaction is two or more collectors, is parallel to each other between each collector, each
Collector includes that plate part and each collector are arc-shaped towards corona electrode direction and have arc independent
Side is ionized, the collector series is respectively in the left and right sides of air inlet and corona electrode downstream, extremely each self-ionization of series of collection
It is formed by that plane is parallel, and the distance between adjacent collector pole is when being formed by plane and corona electrode silk series and ionizing
D2；D1 distance >=the D2 or≤2*D2-1；
The plate part of the collector is formed by plane with Filamentous corona electrode series ionization side and is mutually perpendicular to, by corona electricity
It is D3 that polar system, which arranges plan range determined by identified plane and collector series ionization side, and D3 is not more than 3*D2；The receipts
Collector possesses orthogonal length and height dimension, to adjust lateral air-flow direction；
The electret is formed by the plane that plane is formed by with collector series end face and is parallel to each other, and is separated by certain sky
Between distance；The ion stream for crossing the collector becomes the charging electric pump of electret dipole.
2. air cleaning high-pressure ion electret purification device according to claim 1, which is characterized in that the corona hair
Raw pole is made by conductive filament.
3. air cleaning high-pressure ion electret purification device according to claim 1, which is characterized in that the collector
Group is made of at least two collectors, and each collector includes the leading edge of flake main body and flake main body towards corona electrode direction
It is cylindric, is a circular cylinder protrusion, top view is shown as the pattern of a near circular.
4. air cleaning high-pressure ion electret purification device according to claim 3, which is characterized in that the collector
It is made of at least one collector component, different collector components have different resistance coefficients；Preferably, the collector
Collector component is arranged from high to low according to resistance coefficient, and consistent or reversed with the direction of air flowing.
5. air cleaning high-pressure ion electret purification device according to claim 3, which is characterized in that the adjacent receipts
It is connected between collector component by slot or jack.
6. according to air cleaning high-pressure ion electret purification device described in claim 1, which is characterized in that the corona electrode
Connect positive pole or ground connection, the collector ground connection or connection power cathode.
7. according to claim 1 to 6 any air cleaning high-pressure ion electret purification devices, which is characterized in that institute
Stating electret is the high molecular polymer filtering material with Electrostatic Absorption performance after being polarised, and polarization intensity is remote
Generated saturation intensity when integrally all dipoles all arrange consistent less than electret filter material, using crossing collector
Ion stream gives the electret bulk charging, to play the role of an electret electric pump.
8. air cleaning high-pressure ion electret purification device according to claim 2, which is characterized in that the corona hair
Raw pole be made of tungsten wire, plating filamentary silver, plating spun gold, molybdenum filament, filamentary silver or spun gold or in which two or more braidings or mutually winding and
At diameter range is
9. air cleaning high-pressure ion electret purification device according to claim 3, which is characterized in that the collector
The cross-sectional diameter of cylindrical body is 3-8mm, the flake main body being connected with cylindrical body with a thickness of 0.5-1mm, it is described to collect extremely
Conductive material preparation.
10. air cleaning high-pressure ion electret purification device according to claim 4, which is characterized in that the collection
The collector component of pole is arranged from high to low according to resistance coefficient, and consistent or reversed with the direction of air flowing.
11. air cleaning high-pressure ion electret purification device according to claim 4, which is characterized in that all collections
Pole equipotential link.
12. air cleaning high-pressure ion electret purification device according to claim 4, which is characterized in that the collection
A farthest collector component of pole side occurs apart from corona on extremely and is equipped with the contact being connected with power output end.
13. according to air cleaning high-pressure ion electret purification device as claimed in claim 6, which is characterized in that the corona electricity
It pole and/or collects extremely non-combustible and conductive metal material and is made.
14. according to claim 1 to 13 any air cleaning high-pressure ion electret purification devices, which is characterized in that
It is directly proportional to the intensity of ion electric field to the polarization intensity of electret.
15. air cleaning high-pressure ion electret purification device according to claim 14, which is characterized in that the electret
Polarized electric field intensity suffered by body filtering material and electret filter material plane and the physical distance of collector plate plane at
Inverse ratio, the electret are prepared by Polymer electrets material or high-insulativity fluoropolymer material.
16. a kind of air cleaning unit, which is characterized in that the air cleaning unit includes that claims 1 to 13 is any described
Air cleaning high-pressure ion electret purification device, and for supply above-mentioned corona electrode occurs and collect electrode potential and
The power supply for causing the electric field of corona discharge is generated between the two.
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| CN201510044044.9A CN105983486B (en) | 2015-01-28 | 2015-01-28 | A kind of air cleaning high-pressure ion electret purification device and air cleaning unit |
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| CN201510044044.9A CN105983486B (en) | 2015-01-28 | 2015-01-28 | A kind of air cleaning high-pressure ion electret purification device and air cleaning unit |
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| CN105983486B true CN105983486B (en) | 2018-11-20 |
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| BR112021007589A2 (en) * | 2018-10-22 | 2021-07-27 | Shanghai Bixiufu Enterprise Management Co., Ltd. | air dust removal method and system |
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| CN110165787A (en) * | 2019-05-27 | 2019-08-23 | 北京航空航天大学 | A kind of charging unit of electret machinery antenna |
| CN112295737A (en) * | 2019-07-26 | 2021-02-02 | 上海必修福企业管理有限公司 | Charging electrostatic dust collection electrode and particle removing device comprising same |
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| CN113131342A (en) * | 2020-01-14 | 2021-07-16 | 王宁 | High-resistance current-limiting type matrix collector for electrohydrodynamic pump |
| CN111405740A (en) * | 2020-04-20 | 2020-07-10 | 南京苏曼等离子科技有限公司 | Low-temperature plasma mask sterilization repair electret machine and method |
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| CN114377857A (en) * | 2020-10-21 | 2022-04-22 | 上海必修福企业管理有限公司 | Electric field unit assembly and electric field device |
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