CN110560265A - Electrostatic dust collector - Google Patents
Electrostatic dust collector Download PDFInfo
- Publication number
- CN110560265A CN110560265A CN201910861408.0A CN201910861408A CN110560265A CN 110560265 A CN110560265 A CN 110560265A CN 201910861408 A CN201910861408 A CN 201910861408A CN 110560265 A CN110560265 A CN 110560265A
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- CN
- China
- Prior art keywords
- dust
- positive
- negative
- dust collecting
- grounding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000428 dust Substances 0.000 title claims abstract description 173
- 239000012717 electrostatic precipitator Substances 0.000 claims description 13
- 230000004323 axial length Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 5
- 230000005684 electric field Effects 0.000 description 12
- 150000002500 ions Chemical class 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 238000007599 discharging Methods 0.000 description 6
- 230000005686 electrostatic field Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
- B03C3/0175—Amassing particles by electric fields, e.g. agglomeration
Landscapes
- Electrostatic Separation (AREA)
Abstract
the invention provides an electrostatic dust removal device which comprises a positive discharge piece (10), a grounding piece (20) and a negative discharge piece (30) which are sequentially arranged along a preset direction, wherein the positive discharge piece (10) is used for being connected with a positive power supply (40), the negative discharge piece (30) is used for being connected with a negative power supply (60), and a dust collection opening is formed in the grounding piece (20) so that dust with positive charges and dust with negative charges are condensed in the dust collection opening. According to the technical scheme, small dust is condensed into large dust, the large dust cannot be attached to the grounding electrode under the flowing action of gas, the cleaning is convenient, and the problem that the small dust is attached to the grounding electrode to cause difficulty in cleaning is effectively solved.
Description
Technical Field
The invention relates to the technical field of dust removing equipment, in particular to an electrostatic dust removing device.
background
At present, the electrostatic dust collection device is widely applied to families and industries. The prior art provides a bipolar high-voltage electrostatic coagulator, which comprises a shell, a positive corona electrode, a negative corona electrode, a grounding electrode and a wind mixing section, wherein the positive corona electrode is formed by a group of positive corona electrode frames and is supported or suspended on the shell through an insulator, and the positive corona electrode is powered by a positive high-voltage direct-current power supply; the negative corona electrode is formed by a group of negative corona electrode frames and is supported or suspended on the shell through an insulator, and the positive corona electrode is powered by a negative high-voltage direct-current power supply; the grounding electrode is arranged between the positive corona electrode and the negative corona electrode and is connected with the shell, the grounding electrode is grounded through the shell, and the positive corona electrode, the grounding electrode and the negative corona electrode are alternately arranged to form a bipolar charge area; the wind mixing section is arranged at the rear part of the bipolar charge area.
A positive corona area is formed between the positive corona electrode and the grounding electrode, a negative corona area is formed between the negative corona electrode and the grounding electrode, dust particles can be charged with positive charges when dust-containing smoke passes through the positive corona area, and the dust particles can be charged with negative charges when dust passes through the negative corona area; the larger dust particles with positive charges and the larger dust particles with negative charges are mutually attracted in the air mixing section and are condensed into dust particles with larger particle sizes, and the smaller dust particles are attached to the grounding electrode, so that the dust particles are difficult to clean during cleaning, and the cleaning difficulty is caused.
Disclosure of Invention
The invention mainly aims to provide an electrostatic dust removal device to solve the problem that in the prior art, smaller dust particles are attached to a ground electrode to cause difficulty in cleaning.
In order to achieve the above object, the present invention provides an electrostatic precipitator, including a positive discharge element, a ground element, and a negative discharge element, which are sequentially disposed along a predetermined direction, wherein the positive discharge element is used for connecting with a positive power supply, the negative discharge element is used for connecting with a negative power supply, and a dust collection opening is formed in the ground element, so that dust with positive charges and dust with negative charges are combined in the dust collection opening.
Further, the dust collecting opening is a dust collecting hole.
Furthermore, two opposite sides of the dust collecting hole along the flowing direction of the dust-containing gas are provided with dust collecting plates, and the axial length of the dust collecting plates along the dust collecting hole is greater than the depth of the dust collecting hole.
Further, the two dust collecting plates are arranged in parallel and perpendicular to the flow direction.
Further, the dust collecting holes are rectangular holes.
Further, the extending direction of the positive discharge element, the grounding element and the negative discharge element is parallel to the flowing direction of the dust-containing gas.
Further, the flow direction of the dust-containing gas between the positive discharge element and the ground element is the same as or opposite to the flow direction of the dust-containing gas between the negative discharge element and the ground element.
Further, the flow velocity of the dust-containing gas between the positive discharge element and the ground element is equal to the flow velocity of the dust-containing gas between the negative discharge element and the ground element.
Further, the plurality of dust collecting openings are arranged along the extending direction of the grounding piece.
Further, the distance between adjacent two dust collecting openings is the same.
Further, positive discharge spare, ground connection spare and negative discharge spare are platelike structure, and/or, the direction of predetermineeing is vertical direction.
The technical scheme of the invention has the following advantages: when the positive power supply and the negative power supply work, an electric field is generated between the positive discharging piece and the grounding piece, dust-containing gas is ionized and positive ions are generated under the action of the electric field, the positive ions and dust are collided and combined to enable the dust to be positively charged, meanwhile, an electric field is generated between the negative discharging piece and the grounding piece, the dust-containing gas is ionized and negative ions are generated under the action of the electric field, the negative ions and the dust are collided and combined to enable the dust to be negatively charged, smaller dust with positive charges and smaller dust with negative charges meet in the dust collecting opening and are condensed into larger dust due to opposite electric properties, and the larger dust descends under the action of the weight of the larger dust and flows along with the gas. Above-mentioned structure makes less dust agglomerate into great dust, and great dust can not adhere to on the earth electrode under the mobile effect of gas, washs conveniently, and the effectual less dust of having solved adheres to and causes the problem of wasing the difficulty on the earth electrode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 shows a schematic structural diagram of an electrostatic dust removal device provided by the invention.
Description of reference numerals:
10. A positive discharge element; 20. a ground member; 21. a dust collecting hole; 30. a negative discharge element; 40. a positive power supply; 50. a ground terminal; 60. a negative power supply; 70. a dust collecting plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the electrostatic precipitator of this embodiment includes a positive discharging element 10, a grounding element 20 and a negative discharging element 30 sequentially arranged along a predetermined direction, wherein the positive discharging element 10 is used for connecting with a positive power source 40, the negative discharging element 30 is used for connecting with a negative power source 60, and the grounding element 20 is provided with a dust collecting opening for allowing the dust with positive charges and the dust with negative charges to be combined in the dust collecting opening.
When the electrostatic dust collector of the embodiment is applied, when the positive power supply 40 and the negative power supply 60 work, an electric field is generated between the positive discharge element 10 and the grounding element 20, the dust-containing gas is ionized and positive ions are generated under the action of the electric field, the positive ions and the dust collide and combine to make the dust charged positively, meanwhile, an electric field is generated between the negative discharge element 30 and the grounding element 20, the dust-containing gas is ionized and negative ions are generated under the action of the electric field, the negative ions and the dust collide and combine to make the dust charged negatively, the smaller dust charged positively and the smaller dust charged negatively meet in the dust collecting opening and are condensed into larger dust due to opposite electric polarities, and the larger dust descends under the action of the weight of the larger dust and flows along with the gas. Above-mentioned structure makes less dust agglomerate into great dust, and great dust can not adhere to on the earth electrode under the mobile effect of gas, washs conveniently, and the effectual less dust of having solved adheres to and causes the problem of wasing the difficulty on the earth electrode.
In the embodiment, the dust collecting opening is the dust collecting hole 21, so that the structure is simple and the processing and the manufacturing are convenient.
In the embodiment, the dust collecting plates 70 are arranged on two opposite sides of the dust collecting hole 21 along the flowing direction of the dust-containing gas, the axial length of the dust collecting plates 70 along the dust collecting hole 21 is larger than the depth of the dust collecting hole 21, so that the charged dust can be condensed between the two dust collecting plates 70 conveniently, the thickness of the grounding piece 20 can be thinner, and the cost is reduced.
In the present embodiment, the two dust collecting plates 70 are disposed in parallel and perpendicular to the flow direction, i.e. the dust collecting plates are flat plates, which is convenient for processing and reduces the production cost. Of course, the dust collection plate may also be an arcuate plate.
In the embodiment, the dust collecting holes 21 are rectangular holes, so that the processing is convenient and the processing cost is reduced. Of course, the dust collecting hole may be a circular hole or a hole of another shape, and is not limited thereto.
In this embodiment, the extending direction of the positive discharge part 10, the grounding part 20 and the negative discharge part 30 is parallel to the flowing direction of the dust-containing gas, so that the condensed larger dust flows along with the gas, and the larger dust is collected at one side of the positive discharge part 10, the grounding part 20 and the negative discharge part 30.
In the present embodiment, the flow direction of the dust-containing gas between the positive discharge element 10 and the ground element 20 is opposite to the flow direction of the dust-containing gas between the negative discharge element 30 and the ground element 20, so that the air flow in the dust collecting hole is close to a relatively static state, which facilitates the coalescence of the smaller dust with positive charge and the smaller dust with negative charge in the dust collecting hole, and improves the dust removal efficiency. Of course, the flow direction of the dust-containing gas between the positive discharge element 10 and the ground element 20 and the flow direction of the dust-containing gas between the negative discharge element 30 and the ground element 20 may be the same.
In this embodiment, the flow velocity of the dust-containing gas between the positive discharge element 10 and the grounding element 20 is equal to the flow velocity of the dust-containing gas between the negative discharge element 30 and the grounding element 20, so that the air flow in the dust collecting hole is completely in a relatively static state, and the dust removal efficiency is effectively improved.
In this embodiment, the dust collecting holes are provided in plural, and the plural dust collecting holes are provided along the extending direction of the grounding member 20, so that the adhesion of smaller dust on the grounding electrode can be more effectively avoided.
In this embodiment, the distance between two adjacent dust collecting holes is the same, is more convenient for manufacturing, reduces the processing degree of difficulty, improves production efficiency. Of course, the distance between two adjacent dust collecting holes may be different.
in the present embodiment, the positive discharge element 10, the grounding element 20, and the negative discharge element 30 are all plate-shaped structures, that is, the positive discharge element 10 is a positive discharge electrode, the grounding element 20 is a grounding electrode, and the negative discharge element 30 is a negative discharge electrode. Of course, the positive and negative discharge devices 10 and 30 may have other structures such as discharge needles, but are not limited thereto.
In this embodiment, the predetermined direction is a vertical direction, that is, the positive discharge element 10, the grounding element 20 and the negative discharge element 30 are arranged in sequence from top to bottom along the vertical direction, and the dust-containing gas flows along a horizontal direction. Of course, the predetermined direction may also be a horizontal direction, in which case the dusty gas flows in a vertical direction.
In this embodiment, the ground member is used to connect with the ground terminal 50. The positive power supply 40 is a positive high voltage power supply and the negative power supply 60 is a negative high voltage power supply.
The working principle of the electrostatic precipitator is explained as follows:
When the electrostatic dust removal device operates, a part of dust-containing gas enters an electrostatic field between the positive discharge electrode and the grounding electrode from the right side of the positive discharge electrode and the grounding electrode, the other part of dust-containing gas enters an electrostatic field between the negative discharge electrode and the grounding electrode from the left side of the negative discharge electrode and the grounding electrode, the positive discharge electrode generates a high-voltage electric field to the grounding electrode, and under the action of the high-voltage electric field, positive ions generated by the dust-containing gas collide with dust to combine with the dust, so that the dust is positively charged, and charged dust falls into the dust collecting hole; the negative discharge electrode generates a high-voltage electric field to the grounding electrode, under the action of the high-voltage electric field, negative ions generated by dust-containing gas collide and combine with dust, so that the dust is negatively charged, and charged dust moves upwards to the dust collecting hole. Because the two parts of dust-containing gas enter the electrostatic field at equal speed, the airflow in the dust collecting hole is in a relatively static state, and at the moment, the charged dust with opposite electric properties meets in the dust collecting hole and is condensed due to the opposite electric properties, and naturally settles when reaching a certain weight.
As an alternative embodiment, the dust collecting opening is a dust collecting channel, i.e. one grounding member is divided by a plurality of dust collecting channels into a plurality of small grounding members arranged at intervals.
Alternatively, the extending direction of the positive discharge device 10, the grounding device 20 and the negative discharge device 30 may be perpendicular to the flowing direction of the dust-containing gas, and the positive discharge device 10, the grounding device 20 and the negative discharge device 30 form a set of dust removing components, in which case, a plurality of sets of dust removing components are required to be arranged in the flowing direction of the dust-containing gas.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
The method adopts a double-power-supply double-electric-field mode, utilizes bidirectional constant-speed air inlet to condense charged dust at the same height of a plurality of dust collecting holes on the grounding electrode, and naturally settles when reaching a certain weight, thereby solving the problem that the electrostatic dust collection device is difficult to clean; because the dust is automatically condensed, only one grounding electrode is needed, the space volume is reduced, and the problem of large volume of the electrostatic dust collection device is solved; because the high-voltage power supplies with different polarities generate strong electrostatic fields, the dust removal efficiency is greatly increased, and the problem of low dust removal efficiency of the electrostatic dust removal device is solved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (11)
1. The electrostatic dust collection device is characterized by comprising a positive discharge piece (10), a grounding piece (20) and a negative discharge piece (30) which are sequentially arranged along a preset direction, wherein the positive discharge piece (10) is used for being connected with a positive power supply (40), the negative discharge piece (30) is used for being connected with a negative power supply (60), and a dust collection opening is formed in the grounding piece (20) so that positively charged dust and negatively charged dust can be condensed in the dust collection opening.
2. An electrostatic precipitator according to claim 1, wherein the dust collecting openings are dust collecting holes (21).
3. The electrostatic precipitator according to claim 2, wherein dust collecting plates (70) are provided on opposite sides of the dust collecting hole (21) in the flow direction of the dust-laden gas, and the axial length of the dust collecting plates (70) along the dust collecting hole (21) is greater than the depth of the dust collecting hole (21).
4. An electrostatic precipitator according to claim 3, wherein two of the dust collection plates (70) are arranged in parallel and perpendicular to the flow direction.
5. An electrostatic precipitator according to claim 2, wherein the dust collecting holes (21) are rectangular holes.
6. An electrostatic precipitator according to any of claims 1 to 5, wherein the positive discharge element (10), the grounding element (20) and the negative discharge element (30) extend in a direction parallel to the flow direction of the dust-laden gas.
7. An electrostatic precipitator according to claim 6, wherein the direction of flow of the dust-laden gas between the positive discharge member (10) and the ground member (20) is the same as or opposite to the direction of flow of the dust-laden gas between the negative discharge member (30) and the ground member (20).
8. An electrostatic precipitator according to claim 7, wherein the flow velocity of the dust-laden gas between the positive discharge member (10) and the ground member (20) is equal to the flow velocity of the dust-laden gas between the negative discharge member (30) and the ground member (20).
9. An electrostatic precipitator according to any of claims 1 to 5, wherein a plurality of dust collecting openings are provided, the plurality of dust collecting openings being provided along the extension direction of the grounding member (20).
10. An electrostatic precipitator according to claim 9, wherein the distance between adjacent two of the dust collecting openings is the same.
11. An electrostatic precipitator according to any of claims 1-5, wherein the positive discharge member (10), the grounding member (20) and the negative discharge member (30) are all plate-like structures and/or the predetermined direction is a vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861408.0A CN110560265A (en) | 2019-09-11 | 2019-09-11 | Electrostatic dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861408.0A CN110560265A (en) | 2019-09-11 | 2019-09-11 | Electrostatic dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110560265A true CN110560265A (en) | 2019-12-13 |
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ID=68779401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910861408.0A Pending CN110560265A (en) | 2019-09-11 | 2019-09-11 | Electrostatic dust collector |
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| Country | Link |
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| CN (1) | CN110560265A (en) |
Citations (8)
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|---|---|---|---|---|
| CN201154327Y (en) * | 2007-12-29 | 2008-11-26 | 武汉科技大学 | Three-zone dipolar loading electrostatic agglomeration dust remover |
| CN202590955U (en) * | 2011-12-28 | 2012-12-12 | 宝山钢铁股份有限公司 | Three-area electric coagulation dust catcher |
| CN102836779A (en) * | 2011-06-24 | 2012-12-26 | 宝山钢铁股份有限公司 | Fine particle removal method and device |
| CN202725322U (en) * | 2012-07-10 | 2013-02-13 | 杭州天明环保工程有限公司 | Graded-charging static dust coagulation device |
| CN103878066A (en) * | 2014-04-17 | 2014-06-25 | 中钢集团天澄环保科技股份有限公司 | Dust collection polar plate of wet-type electric dust collector |
| US20140352535A1 (en) * | 2011-08-15 | 2014-12-04 | Peter Oertmann | Electronic fine dust separator |
| CN204816897U (en) * | 2015-06-25 | 2015-12-02 | 西安理工大学 | Little fine particles's coalescence device |
| CN210753207U (en) * | 2019-09-11 | 2020-06-16 | 珠海格力电器股份有限公司 | Electrostatic dust collector |
-
2019
- 2019-09-11 CN CN201910861408.0A patent/CN110560265A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201154327Y (en) * | 2007-12-29 | 2008-11-26 | 武汉科技大学 | Three-zone dipolar loading electrostatic agglomeration dust remover |
| CN102836779A (en) * | 2011-06-24 | 2012-12-26 | 宝山钢铁股份有限公司 | Fine particle removal method and device |
| US20140352535A1 (en) * | 2011-08-15 | 2014-12-04 | Peter Oertmann | Electronic fine dust separator |
| CN202590955U (en) * | 2011-12-28 | 2012-12-12 | 宝山钢铁股份有限公司 | Three-area electric coagulation dust catcher |
| CN202725322U (en) * | 2012-07-10 | 2013-02-13 | 杭州天明环保工程有限公司 | Graded-charging static dust coagulation device |
| CN103878066A (en) * | 2014-04-17 | 2014-06-25 | 中钢集团天澄环保科技股份有限公司 | Dust collection polar plate of wet-type electric dust collector |
| CN204816897U (en) * | 2015-06-25 | 2015-12-02 | 西安理工大学 | Little fine particles's coalescence device |
| CN210753207U (en) * | 2019-09-11 | 2020-06-16 | 珠海格力电器股份有限公司 | Electrostatic dust collector |
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