CN211755991U - Novel micro-channel air filter - Google Patents
Novel micro-channel air filter Download PDFInfo
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- CN211755991U CN211755991U CN201921478347.1U CN201921478347U CN211755991U CN 211755991 U CN211755991 U CN 211755991U CN 201921478347 U CN201921478347 U CN 201921478347U CN 211755991 U CN211755991 U CN 211755991U
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Abstract
The utility model provides a novel microchannel air cleaner, this novel microchannel air cleaner includes: a plurality of filter units, each of the plurality of filter units having a plurality of micro air channels, and the plurality of filter units being sequentially stacked; and the high-voltage power supply respectively provides electric energy for the plurality of filtering units so as to form electrostatic fields in the plurality of filtering units. The utility model discloses a novel microchannel air cleaner has bigger dust holding capacity, longer life and higher adsorption efficiency, consequently has wider range of application.
Description
Technical Field
The utility model relates to an air purification field, more specifically relates to a novel microchannel air cleaner.
Background
Electrostatic dust removal is one of the methods of gas dust removal. The dust-containing gas is electrically separated when passing through a high-voltage electrostatic field, and dust particles and negative ions are combined to be charged negatively and then tend to discharge on the surface of the anode to be deposited. In the metallurgical, chemical and other industries to purify gases or recover useful dust particles. A dust collecting method in which gas is ionized by an electrostatic field to thereby electrically adsorb dust particles to an electrode. In a strong electric field, air molecules are ionized into positive ions and electrons, and the electrons encounter dust particles in the process of running to the positive electrode, so that the dust particles are negatively charged and adsorbed to the positive electrode to be collected.
The existing electrostatic adsorption dust removal technology mainly comprises an electrostatic filter formed by parallel and staggered metal polar plates and a medium strong electric field filter formed by wrapping a conductive material by using an insulating material.
The electrostatic filter formed by parallel and staggered metal polar plates has the following defects:
1) high voltage is directly loaded on the metal plate, so that the safety is poor;
2) the high voltage applied between the metal polar plates cannot be too high, otherwise, air breakdown between the polar plates can be caused, so that the adsorption efficiency is not high;
3) when dust on the polar plates is collected in a moist environment, discharge and arc discharge can occur between the polar plates; and
4) the high voltage between the polar plates is directly loaded on the air, and the ozone generation amount is large.
Another technique is a dielectric high electric field filter made of an electrically conductive material wrapped with an insulating material, which can solve the 4 drawbacks of the aforementioned filter well, but still has the disadvantage of relatively low dust holding capacity. Compared with a flat electric field electrostatic filter with the same thickness, the medium strong electric field filter has the dust holding capacity at least twice lower, so that the medium strong electric field electrostatic filter cannot be applied to occasions with large smoke and dust capacity, such as a smoking room, oil smoke purification and the like. The main reasons for the low dust capacity of the medium strong electric field are: the insulating material is used for wrapping the conductive material, so that after the charged particles are adsorbed, the charges on the charged particles are difficult to rapidly migrate and neutralize, and when the charged dust is continuously accumulated on the dielectric plate, the charges are also continuously accumulated, so that a reaction force for preventing the dust with the same charges from being continuously adsorbed is formed, and finally, the efficiency is reduced and the failure is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a novel microchannel air cleaner, this novel microchannel air cleaner includes:
a plurality of filter units, each of the plurality of filter units having a plurality of micro air channels, and the plurality of filter units being sequentially stacked; and
and the high-voltage power supply is used for respectively providing electric energy for the plurality of filtering units so as to form electrostatic fields in the plurality of filtering units.
In an embodiment of the present invention, each of the plurality of filter units includes a first conductive plate, a second conductive plate, a plurality of third conductive plates, and a conductive layer, wherein:
the first conductive plate and the second conductive plate are arranged in parallel;
a plurality of third conductive plates disposed between the first conductive plates and the second conductive plates and parallel to each other to support the first conductive plates and the second conductive plates;
the conducting layer is arranged on the surface of the first conducting plate, which faces away from the second conducting plate; and
the second conductive plate is made of a low-resistance material or a medium-resistance material.
In one embodiment of the present invention, the first conductive plate and the plurality of third conductive plates are made of high impedance material; and
the second conductive plate is made of a low-resistance material.
In one embodiment of the present invention, the first conductive plate and the plurality of third conductive plates are formed of a material having a volume resistivity of 1012-1015Omega cm material; and
the second conductive plate has a volume resistivity of 0-109Omega cm.
In an embodiment of the present invention, the conductive layer of each of the plurality of filter units is connected to the high voltage power supply and the second conductive plate is grounded.
In one embodiment of the present invention, the first conductive plate, the second conductive plate, and the third conductive plate are made of a medium impedance material, a low impedance material, and a high impedance material, respectively.
In one embodiment of the present invention, the first conductive plate, the second conductive plate and the third conductive plate are respectively made of 10 volume resistivities9-1011Ω·cm、0-109Omega cm and 1012-1015Omega cm.
In an embodiment of the present invention, the conductive layer of the plurality of filter units is connected to the high voltage power supply and the second conductive plate is grounded.
In one embodiment of the present invention, the first and second conductive plates are made of a medium impedance material, and the third conductive plate is made of a high impedance material.
In one embodiment of the present invention, the first conductive plate and the second conductive plate are made of the same material.
In one embodiment of the present invention, the volume resistivity of the material used to make the first and second conductive plates is at 109-1011Omega cm, the volume resistivity of the material used for making the third conductive plate is 1012-1015Omega cm.
In an embodiment of the present invention, the conducting layer of the odd-numbered filter unit among the plurality of filter units is grounded, and the conducting layer of the even-numbered filter unit is connected to the high voltage power supply.
In one embodiment of the present invention, the conductive layer is made of conductive ink or conductive metal.
The utility model discloses a novel microchannel air cleaner makes this microchannel air cleaner have bigger dust holding capacity, longer life and higher adsorption efficiency through the current conducting plate that uses different volume resistivity, consequently has wider range of application.
Drawings
Fig. 1 is a schematic diagram of the structure of the micro air channels of a novel micro channel air filter according to an exemplary embodiment of the present invention;
FIG. 2 is a schematic diagram of an air filtration unit of the novel microchannel air filter according to an exemplary embodiment of the present invention;
fig. 3 is a schematic structural view of a novel microchannel air filter according to an exemplary embodiment of the present invention; and
fig. 4 is a schematic structural view of a novel microchannel air filter according to another exemplary embodiment of the present invention.
Detailed Description
Illustrative, non-limiting embodiments of the present invention are described in detail below with reference to the accompanying drawings, further illustrating the novel microchannel air filter according to the present invention.
The utility model discloses a novel microchannel filter comprises a plurality of filter unit and high voltage power supply source, and wherein high voltage power supply is used for providing the electric energy for a plurality of filter unit to form the electrostatic field that is used for adsorbing charged particle in a plurality of filter unit.
Each of the plurality of filter units has a plurality of micro air channels to allow a gas flow containing charged particles to flow therethrough, and the plurality of filter units are sequentially stacked to form a micro channel filter having a strong adsorption capacity. The high voltage power supply provides electric energy for a plurality of filter units respectively to form electrostatic field in a plurality of filter units, make charged particle adsorbed in a plurality of little air passage under the effect of electric field force, in order to realize filtration's effect.
Referring to fig. 1, in some embodiments, each of the plurality of filter cells of the novel microchannel air filter of the present disclosure includes a first conductive plate 1, a second conductive plate 2, a plurality of third conductive plates 3, and a conductive layer 4.
The first conductive plate 1 and the second conductive plate 2 are disposed in parallel, the plurality of third conductive plates 3 are disposed between the first conductive plate 1 and the second conductive plate 2 and are parallel to each other to support the first conductive plate 1 and the second conductive plate 2 and form a plurality of micro air channels, and the conductive layer 4 is disposed on a surface of the first conductive plate 1 facing away from the second conductive plate 2, thereby forming an independent filter unit. The novel micro-channel air filter is formed by superposing a plurality of filter units and respectively connecting the filter units with a high-voltage power supply, wherein an electric field is formed in a micro-air channel of each filter unit so as to adsorb charged particles in the air. Further, the second conductive plate 2 in each filtering unit is made of a medium-impedance material or a low-impedance material, so that the second conductive plate 2 has strong ion neutralization capacity, that is, charges carried by charged particles in the air flow can be rapidly migrated and neutralized, thereby ensuring that the filter has lasting and high-efficiency purification efficiency.
Exemplary embodiments of the novel microchannel air filter of the present disclosure are described below with reference to the drawings.
Example one
Referring to fig. 2 and 3, in the first embodiment, the first conductive plate 1 and the plurality of third conductive plates 3 are made of high-impedance material, and the second conductive plate 2 is made of low-impedance material, for example, the first conductive plate 1 and the plurality of third conductive plates 3 are made of material with volume resistivity of 1012-1015Omega cm, the second conductive plate 2 is made of a material having a volume resistivity of 0 to 109Omega cm. The conductive layer 4 may be made of a conductive metal, a conductive ink, or any other conductive material commonly used in the art.
In the preparation process, for example, the first conductive plate 1 and a plurality of third conductive plates 3 perpendicular to the first conductive plate 1 are prepared by using the same high-impedance material, the second conductive plate 2 is attached to the free ends of the plurality of third conductive plates 3, and a conductive layer 4 is attached to one side of the first conductive plate 1, which is away from the second conductive plate 2, so as to form an independent filter unit, and a plurality of micro air channels are formed in the independent filter unit, and each micro air channel is surrounded by the first conductive plate 1, the second conductive plate 2 and the two third conductive plates 3. It should be noted that the first conductive plate 1, the second conductive plate 2 and the third conductive plate 3 may be integrally formed by an extrusion apparatus to form an air channel array of an integrated micro-channel structure.
Further, the manufactured plurality of independent filter units are stacked in such a sequence that the first conductive plate 1 and the second conductive plate 2 in each filter unit are stacked with the first conductive plate 1 and the second conductive plate 2 in the adjacent filter unit, respectively, and the conductive layer 4 of each of the stacked plurality of filter units is connected to a high voltage power supply (+ KV) and the second conductive plate 2 is Grounded (GND), thereby forming the microchannel air filter. In this way, an electric field directed from the first conductive plate 1 to the second conductive plate 2 is formed in each air channel in the microchannel air filter, and charged particles in the air flow passing through each air channel are adsorbed to the first conductive plate 1 or the second conductive plate 2 by the electric field force, thereby achieving an air purification effect.
In this embodiment, since the second conductive plate 2 is made of a low-impedance material, the charges of the charged particles in the air flow can be rapidly transferred and neutralized, thereby ensuring that the filter has a long-lasting and high-efficiency purification efficiency.
Example two
Referring to fig. 2 and 3, in the second embodiment of the present invention, the first conductive plate 1, the second conductive plate 2 and the third conductive plate 3 are made of a medium impedance material, a low impedance material and a high impedance material, respectively, for example, the first conductive plate 1, the second conductive plate 2 and the third conductive plate 3 are made of a material having a volume resistivity of 10, respectively9-1011Ω·cm、0-109Omega cm and 1012-1015Omega cm. The conductive layer 4 may be made of a conductive metal, a conductive ink, or any other conductive material commonly used in the art.
In the preparation process, materials for forming the first conductive plate 1, the second conductive plate 2 and the third conductive plate 3 are molded through a material extrusion device to form an air channel array with an integrated hollow structure, wherein each micro air channel is surrounded by the first conductive plate 1, the two third conductive plates 3 and the second conductive plate 2, and meanwhile, conductive materials are attached to one side, back to the second conductive plate 2, of the first conductive plate 1 to form a conductive layer 4, so that an independent filtering unit is formed.
Further, the manufactured plurality of independent filter units are stacked in such a sequence that the first conductive plate 1 and the second conductive plate 2 in each filter unit are stacked with the first conductive plate 1 and the second conductive plate 2 in the adjacent filter unit, respectively, and the conductive layer 4 of each of the stacked plurality of filter units is connected to a high voltage power supply (+ KV) and the second conductive plate 2 is Grounded (GND), thereby forming the microchannel air filter. In this way, an electric field is formed in each air channel in the microchannel air filter in a direction from the first conductive plate 1 to the second conductive plate 2, and charged particles in the air flow passing through each air channel are adsorbed to the second conductive plate 2 by the electric field force, thereby achieving an air purification effect.
In the microchannel air filter disclosed in this embodiment, since the material forming the second conductive plate 2 is a low-impedance material, the charges of the charged particles in the air flow can be rapidly migrated and neutralized, and the accumulation of the charged particles on the second conductive plate 2 is reduced, thereby ensuring that the filter has a high cleaning efficiency.
EXAMPLE III
Referring to fig. 2 and 4, in a third embodiment of the present invention, the first conductive plate 1 and the second conductive plate 2 are made of a medium impedance material, and the third conductive plate 3 is made of a high impedance material, for example, the volume resistivity of the material used to make the first conductive plate 1 and the second conductive plate 2 is 109-1011Omega cm, the volume resistivity of the material used for making the third conductive plate 3 is 1012-1015Omega cm. In one embodiment, the first conductive plate 1 and the second conductive plate 2 are made of the same material. The conductive layer 4 may be made of conductive ink, conductive metal or any other conductive material commonly used in the art.
In the preparation process, materials for forming the first conductive plate 1, the second conductive plate 2 and the third conductive plate 3 are molded through a material extrusion device to form an air channel array with an integrated hollow structure, wherein each micro air channel is surrounded by the first conductive plate 1, the two third conductive plates 3 and the second conductive plate 2, and meanwhile, conductive materials are attached to one side, back to the second conductive plate 2, of the first conductive plate 1 to form a conductive layer 4, so that an independent filtering unit is formed.
Further, the manufactured plurality of independent filter units are stacked in such an order that the first conductive plate 1 and the second conductive plate 2 in each filter unit are stacked with the second conductive plate 2 and the first conductive plate 1 in the adjacent filter unit, respectively, that is, the conductive layers 4 in the plurality of filter units are stacked in the same direction; meanwhile, the conducting layer 4 of the odd-numbered filtering unit in the stacked filtering units is grounded, and the conducting layer 4 of the even-numbered filtering unit is connected with a high-voltage power supply. In this way, an electric field is formed in each air channel in the microchannel air filter, and charged particles in the air flow passing through each air channel are adsorbed into the plurality of micro air channels of the filter unit with the grounded conductive layer 4 by the action of the electric field force, thereby achieving the air purification effect.
In this embodiment, since the material used to make the first conductive plate 1 and the second conductive plate 2 is a medium impedance material, the charges of the charged particles in the air flow can be rapidly transferred and neutralized, and the accumulation of particles on the second conductive plate 2 is reduced, so as to ensure a long-lasting and high-efficiency purification efficiency of the microchannel air filter.
Table one is test data using a microchannel air filter made according to example three.
Table two is test data for filters made using a dielectric strong electric field.
Watch two
According to the above test data, the utility model discloses a microchannel air filter has higher air filtration efficiency for the filter of medium strong electric field preparation.
Claims (13)
1. A novel microchannel air filter, the novel microchannel air filter comprising:
a plurality of filter units, each of which has a plurality of micro air channels, and which are sequentially stacked; and
and the high-voltage power supply is used for respectively providing electric energy for the plurality of filtering units so as to form electrostatic fields in the plurality of filtering units.
2. The novel microchannel air filter of claim 1, wherein each of the plurality of filter cells comprises a first conductive plate, a second conductive plate, a plurality of third conductive plates, and a conductive layer, wherein:
the first conductive plate and the second conductive plate are arranged in parallel;
the plurality of third conductive plates are disposed between the first conductive plate and the second conductive plate and are parallel to each other to support the first conductive plate and the second conductive plate;
the conductive layer is disposed on a surface of the first conductive plate facing away from the second conductive plate; and
the second conductive plate is made of a low-impedance material or a medium-impedance material.
3. The novel microchannel air filter of claim 2, wherein:
the first conductive plate and the plurality of third conductive plates are both made of a high-impedance material; and
the second conductive plate is made of a low-impedance material.
4. The novel microchannel air filter of claim 3, wherein:
the first conductive plate and the plurality of third conductive plates have a volume resistivity of 1012-1015Omega cm material; and
the second conductive plate has a volume resistivity of 0-109Omega cm.
5. The novel microchannel air filter of claim 3, wherein the conductive layer of each of the plurality of filter elements is connected to the high voltage power supply and the second conductive plate is grounded.
6. The novel microchannel air filter of claim 2, wherein the first, second, and third electrically conductive plates are made of a medium impedance material, a low impedance material, and a high impedance material, respectively.
7. The novel microchannel air filter of claim 6, wherein the first, second, and third electrically conductive plates each have a volume resistivity of 109-1011Ω·cm、0-109Omega cm and 1012-1015Omega cm.
8. The novel microchannel air filter of claim 6, wherein the conductive layers in the plurality of filter elements are connected to a high voltage power supply and the second conductive plate is grounded.
9. The novel microchannel air filter of claim 2, wherein the first and second conductive plates are made of a medium impedance material and the third conductive plate is made of a high impedance material.
10. The novel microchannel air filter of claim 9, wherein the first electrically conductive plate and the second electrically conductive plate are made of the same material.
11. The novel microchannel air filter of claim 9, wherein the volume resistivity of the material used to form the first and second electrically conductive plates is at 109-1011Omega cm, the volume resistivity of the material used for making the third conductive plate is 1012-1015Omega cm.
12. The novel microchannel air filter of claim 9, wherein the conducting layers of odd-numbered filter elements of the plurality of filter elements are grounded and the conducting layers of even-numbered filter elements are connected to a high voltage power supply.
13. The novel microchannel air filter of claim 2, wherein the conductive layer is made of a conductive ink or a conductive metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921478347.1U CN211755991U (en) | 2019-09-06 | 2019-09-06 | Novel micro-channel air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921478347.1U CN211755991U (en) | 2019-09-06 | 2019-09-06 | Novel micro-channel air filter |
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| Publication Number | Publication Date |
|---|---|
| CN211755991U true CN211755991U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921478347.1U Active CN211755991U (en) | 2019-09-06 | 2019-09-06 | Novel micro-channel air filter |
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| CN (1) | CN211755991U (en) |
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- 2019-09-06 CN CN201921478347.1U patent/CN211755991U/en active Active
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