CN109078756B - Multidimensional corona electrode structure and electrostatic dust remover - Google Patents
Multidimensional corona electrode structure and electrostatic dust remover Download PDFInfo
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- 239000000428 dust Substances 0.000 title claims abstract description 49
- 239000012717 electrostatic precipitator Substances 0.000 claims abstract description 10
- 230000005855 radiation Effects 0.000 claims description 19
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001846 repelling effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000001954 sterilising effect Effects 0.000 abstract description 4
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 4
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- 230000007547 defect Effects 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
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- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 241000533950 Leucojum Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
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Classifications
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- 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
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
- B03C3/43—Ionising-electrodes radioactive
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- 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
- B03C3/34—Constructional details or accessories or operation thereof
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Abstract
The invention provides a multidimensional corona electrode structure and an electrostatic precipitator, which overcome the technical defects that corona wires serving as ionization poles in electrostatic precipitators in the prior art are easy to fuse and the ionization effect of double-sided needle tip ionization poles is poor, and comprise at least one set of sub-corona electrodes, wherein the sub-corona electrodes comprise: the grounding electrode is hollow and cylindrical; the multi-dimensional ionization electrode is arranged inside the grounding electrode and comprises a plurality of ionization needle layers which are distributed in the inner cavity of the hollow cylinder one by one along the axial direction of the hollow cylinder of the grounding electrode, each ionization needle layer comprises a plurality of ionization needles which are radially distributed by taking a radial shaft as the center, and a first air channel is formed between the multi-dimensional ionization electrode and the inner wall of the grounding electrode. The adoption of the multidimensional needle electrode structure can greatly increase the effective area of discharge, improve the concentration of the existing needle-shaped discharge plasma, improve the dust removal and sterilization effects of the ionization purifier, and solve the problem that wire-like discharge is easy to break.
Description
Technical Field
The invention relates to the technical field of air purifiers, in particular to a multidimensional corona electrode structure and an electrostatic precipitator.
Background
The electrostatic air purifier has the advantages of small wind resistance, no consumable and the like, and can be widely applied to air conditioners and air purifier products. The core working area of the electrostatic air purifier mainly comprises: an ionization region and a dust collection region downstream of the ionization region. The ionization region is internally provided with an ionization electrode and a grounding electrode, direct-current high-voltage electricity is added on the ionization electrode, corona discharge phenomenon is generated on the surface of the ionization electrode, dust particles in air pass through the ionization region, and the dust particles obtain charges, and the larger the particle size is, the more the charge quantity is. The downstream of the ionization area is a dust collecting area which consists of a plurality of groups of parallel high-voltage polar plates and grounding polar plates, and the positive polar plates and the negative polar plates are placed in parallel to generate a uniform electric field. Positively charged dust particles are repelled by the anode plate as the air flow enters the uniform electric field, and are quickly attracted to the negative collector plate of the electrostatic filter. The electric dust remover adopts a two-section design, and the electric field of the ionization area is designed to be a non-uniform electric field so as to generate corona ionized air, and the electric charge of dust particles in the air is mainly carried out; the electric field of the dust collecting area is designed to be a uniform high-voltage electrostatic field, and the charged particles are adsorbed and collected.
The ionization electrode in the existing electrostatic air purifier mainly adopts tungsten materials as corona wires, but the corona wires are extremely easy to fuse. The Chinese patent No. CN104492606A discloses an electric purification mode adopting double-sided needle tip discharge, and adopts the double-sided needle tip to replace a corona wire structure, so that the problem that a corona wire is easy to break can be solved, but the area of the needle tip is relatively small, the discharge quantity is insufficient, and the ion concentration of the discharge is insufficient; the requirements of high-efficiency dust removal and sterilization cannot be met.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical defects that corona wires serving as ionization poles in the electrostatic dust collector in the prior art are easy to fuse and the ionization effect of double-sided needle tip ionization poles is poor, so as to provide a multi-dimensional corona electrode structure and the electrostatic dust collector.
The invention provides a multi-dimensional corona electrode structure, comprising at least one set of sub-corona electrodes, wherein the sub-corona electrodes comprise: the grounding electrode is hollow and cylindrical; the multi-dimensional ionization electrode is arranged inside the grounding electrode and comprises a plurality of ionization needle layers which are distributed in the inner cavity of the hollow cylinder one by one along the axial direction of the hollow cylinder of the grounding electrode, each ionization needle layer comprises a plurality of ionization needles which are radially distributed by taking a radial shaft as the center, and a first air channel is formed between the multi-dimensional ionization electrode and the inner wall of the grounding electrode.
Further, the ionization needles in the ionization needle layer are uniformly and radially distributed by taking the radial axis as the center.
Further, the ionization needles in each ionization needle layer are distributed on the same plane perpendicular to the radiation axis.
Further, at least a portion of the ionizing needle layer includes long needles centered on the emission axis and short needles spaced along the long needles.
Further, the ionizing needle layer including the long needles and the short needles is snowflake-shaped.
Further, the short needle includes at least one pair of small needles disposed at the free end of the long needle.
Furthermore, the ionization needles in the ionization needle layers are consistent in length, and each ionization needle layer is provided with 6-30 ionization needles.
Further, the distance between the free end of the ionization needle and the inner wall of the hollow cylinder is 2 mm-20 mm.
Further, the multidimensional ionization electrode further comprises a connector coaxially arranged with the radiation shaft, and the ionization needles in each group of ionization needle layers are connected and positioned with the connector.
Further, the connector is coaxial with the emission axis.
Further, the connector is hollow and cylindrical.
Further, the radial cross section shape of the hollow cylinder is round or hexagonal.
Further, at least two sets of sub-corona electrodes are arranged, and the outline dimensions of the hollow cylinders are the same.
Furthermore, the ionization needle is made of stainless steel.
The present invention also provides an electrostatic precipitator including an ionization region and a dust collection region disposed downstream of the ionization region, the ionization region including: a first cylindrical housing and a multi-dimensional corona electrode structure according to the above; the multi-dimensional corona electrode structure is axially arranged along the first cylindrical shell.
Further, the dust collection area includes: the second cylindrical shell is in sealing engagement with the first cylindrical shell; at least one set of dust collection device, the dust collection device is arranged in the second cylindrical shell; the dust collecting device comprises a dust collecting polar plate and a repulsive polar plate which are arranged in parallel, a second air duct is formed between the dust collecting polar plate and the repulsive polar plate, and the second air duct is connected with the first air duct.
Further, the dust collecting electrode plate and the repelling electrode plate are all wave plates.
The technical scheme of the invention has the following advantages:
1. The invention provides a multi-dimensional corona electrode structure, which comprises at least one set of sub-corona electrodes, wherein the sub-corona electrodes comprise: the grounding electrode is hollow and cylindrical; the multi-dimensional ionization electrode is arranged inside the grounding electrode and comprises a plurality of ionization needle layers which are distributed in the inner cavity of the hollow cylinder one by one along the axial direction of the hollow cylinder of the grounding electrode, each ionization needle layer comprises a plurality of ionization needles which are radially distributed by taking a radial shaft as the center, and a first air channel is formed between the multi-dimensional ionization electrode and the inner wall of the grounding electrode.
The core technical scheme of the invention adopts a multi-dimensional needle electrode structure, so that the effective discharge area can be greatly increased, the concentration of the existing needle-shaped discharge plasma is improved, the dust removal and sterilization effects of the ionization purifier are improved, and the problem that wire breakage is easy to occur in wire discharge can be solved. Due to the increase of the discharge effective area, the corona onset voltage can be reduced, and then the ozone generation amount and the electric ignition problem can be reduced. The initial corona voltage, also called the threshold voltage, is the voltage at which corona discharge begins to occur. The electric field strength corresponding to this is called the initial corona field strength or critical field strength. The initial corona voltage varies with the geometry of the electrode. The finer the corona electrode wire, the coarser the surface, the lower the corona onset voltage.
2. According to the multidimensional corona electrode structure provided by the invention, the ionization needles in the ionization needle layer are uniformly and radially distributed by taking the radial axis as the center. The ionization needles in each ionization needle layer are distributed on the same plane perpendicular to the radiation axis. The distribution of the ionization needles can be vertical to the radiation axis or can be at any angle with the radiation axis, and the distribution of the ionization needles is vertical to the radiation axis. The multidimensional needle-shaped discharge of the invention can be not only limited in the existing layout mode, but also the discharge of other ionization needles which are not arranged on the same plane is in the protection range of multidimensional discharge.
3. According to the multi-dimensional corona electrode structure provided by the invention, at least part of the ionization needle layer comprises long needles taking the radiation axis as the center and short needles arranged at intervals along the long needles. The ionization needle layer comprising the long needle and the short needle is snowflake-shaped. The short needle includes at least one pair of small needles disposed at the free end of the long needle. The ionization needle layer of each layer can be arranged to be snowflake-shaped, long needles and short needles are arranged in a crossing mode, and small needles are arranged at the end portions of the long needles, so that ionization area is increased, and dust collection efficiency is improved.
As another embodiment of the ionizing needle layer structure, the ionizing needles in the ionizing needle layers are consistent in length, and each ionizing needle layer is provided with 6-30 ionizing needles. The ionization needles in each ionization needle layer can be provided with a structure with the same length of the dense hemp, so that the ionization area is increased, and the dust collection efficiency is improved.
4. According to the multidimensional corona electrode structure provided by the invention, the distance between the free end part of the ionization needle and the inner wall of the hollow cylinder is 2-20 mm, the closer the ionization needle is to the ground electrode, the better the discharge effect is, but the process is difficult to realize, and the optimal distance of the multidimensional corona electrode structure is 2mm.
5. The multidimensional corona electrode structure provided by the invention further comprises a connector coaxially arranged with the radiation shaft, and the ionization needles in each group of ionization needle layers are connected and positioned with the connector. The connector is coaxial with the emission axis. The connector is hollow and cylindrical. The ionization needle layers are arranged on the connector, and each ionization needle layer is uniformly distributed at intervals or unevenly distributed at intervals along the axial direction of the connector.
6. According to the multi-dimensional corona electrode structure provided by the invention, the radial cross section of the hollow cylinder is circular or hexagonal. The sub-corona electrodes are provided with at least two sets, and the outline dimensions of the hollow cylinders are the same. Such as: seven sets of hollow cylinders are arranged and distributed in a plum blossom shape; or twelve sets of corona electrodes are arranged, and the hollow cylinders are distributed in a staggered matrix; further, the dislocation matrix distribution is 3×4. The sub-corona electrodes can be arranged into n groups according to design requirements, and the combination shape can be changed randomly according to requirements.
7. According to the multidimensional corona electrode structure provided by the invention, the ionization needle is made of conductive stainless steel, silver needle and other metal or conductive alloy materials. The invention is preferably an electrically conductive stainless steel material. The intensity of the ionization needle is required to reach the degree of being capable of resisting static wind so as to ensure the ionization effect and the service life.
8. The present invention also provides an electrostatic precipitator including an ionization region and a dust collection region disposed downstream of the ionization region, the ionization region including: a first cylindrical housing and a multi-dimensional corona electrode structure according to the above; the multi-dimensional corona electrode structure is axially arranged along the first cylindrical shell. All the advantages of the multi-dimensional corona electrode structure are provided.
In summary, the multi-dimensional needle point discharge is combined with the optimized collector structure, the original collector adopts a flat plate structure, the optimized collector adopts a curve, the higher dust collection area under the same volume is realized, the running stroke of superfine particulate matters is further increased, the collected probability is increased, the primary purification efficiency is improved, and the problem of low primary efficiency of the existing electric purification is solved. Due to the adoption of the multi-dimensional needle-shaped discharge structure, the ionization concentration is at least 50% higher than the original needle-shaped discharge, meanwhile, the fault rate caused by broken wire of the corona wire in the original scheme is reduced to zero, the corona onset voltage of the existing wire-shaped discharge is reduced, the ozone generation rate is at least 50%, and the ignition fault is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a multi-dimensional corona electrode structure (with a cylindrical grounding electrode) in embodiment 1 of the present invention;
FIG. 2 is a side view of a neutron corona electrode of example 1 of the present invention;
FIG. 3 is a schematic diagram of a multi-dimensional corona electrode structure in embodiment 2 of the present invention (the radial cross section of the cylindrical grounding electrode is hexagonal, and the electrode needle is snowflake-shaped);
FIG. 4 is a schematic view showing the internal structure of the dust collecting section in embodiment 3 of the present invention;
FIG. 5 is a schematic view of the electrostatic precipitator in accordance with embodiment 3 of the present invention (the arrow direction in the drawing is the air flow direction);
Reference numerals illustrate:
1-a grounding electrode; 2-multidimensional ionizer; 21-ionizing the needle layer; 211-ionizing pins; 212-long needle; 213-short needles; 214-small needles; 22-linker; a 3-ionization region; 4-a dust collection area; 41-a dust collecting polar plate; 42-repulsive polar plate.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific 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 explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
As shown in fig. 1-5, the present embodiment provides a multi-dimensional corona electrode structure, including at least one set of sub-corona electrodes, the sub-corona electrodes including: the grounding electrode 1 is hollow and cylindrical; the multidimensional ionization electrode 2 is arranged inside the grounding electrode 1, the multidimensional ionization electrode 2 comprises a plurality of ionization needle layers 21 which are distributed in the inner cavity of the hollow cylinder one by one along the axial direction of the hollow cylinder of the grounding electrode 1, the ionization needle layers 21 comprise a plurality of ionization needles 211 which are distributed in a radial manner by taking a radial axis as the center, and a first air channel is formed between the multidimensional ionization electrode 2 and the inner wall of the grounding electrode 1.
The core technical scheme of the invention adopts a multi-dimensional needle electrode structure, so that the effective discharge area can be greatly increased, the concentration of the existing needle-shaped discharge plasma is improved, the dust removal and sterilization effects of the ionization purifier are improved, and the problem that wire breakage is easy to occur in wire discharge can be solved. Due to the increase of the discharge effective area, the corona onset voltage can be reduced, and then the ozone generation amount and the electric ignition problem can be reduced. The initial corona voltage, also called the threshold voltage, is the voltage at which corona discharge begins to occur. The electric field strength corresponding to this is called the initial corona field strength or critical field strength. The initial corona voltage varies with the geometry of the electrode. The finer the corona electrode wire, the coarser the surface, the lower the corona onset voltage.
As shown in fig. 1, 2 and 3, in the present invention, the ionizing pins 211 in the ionizing pin layer 21 are uniformly radially distributed about the radial axis. The ionizing pins 211 in each ionizing pin layer 21 are distributed on the same plane perpendicular to the radiation axis. The distribution of the ionization needles can be vertical to the radiation axis or can be at any angle with the radiation axis, and the distribution of the ionization needles is vertical to the radiation axis. The multidimensional needle-shaped discharge of the invention can be not only limited in the existing layout mode, but also the discharge of other ionization needles which are not arranged on the same plane is in the protection range of multidimensional discharge.
As shown in fig. 3, at least part of the ionizing pin layer 21 includes long pins 212 centered on the radiation axis and short pins 213 spaced along the long pins 212. The ionizing pin layer 21 including the long pins 212 and the short pins 213 has a snowflake shape. The short needle 213 includes at least one pair of small needles 214 provided at the free end of the long needle 212. The ionization needle layer of each layer can be arranged to be snowflake-shaped, long needles and short needles are arranged in a crossing mode, and small needles are arranged at the end portions of the long needles, so that ionization area is increased, and dust collection efficiency is improved.
As another embodiment of the ionizing pin layer structure, as shown in fig. 1, the ionizing pins 211 in the ionizing pin layer 21 have the same length, and each ionizing pin layer 21 is provided with 6 to 30 ionizing pins 211. The ionization needles in each ionization needle layer can be provided with a structure with the same length of the dense hemp, so that the ionization area is increased, and the dust collection efficiency is improved.
In the present invention, the distance between the free end of the ionizing pin 211 and the inner wall of the hollow cylinder is 2mm to 20mm.
As shown in fig. 1, 2 and 3, in the present invention, the multi-dimensional ionizing electrode 2 further includes a connecting body 22 coaxially disposed with the radiation axis, and the ionizing pins 211 in each group of ionizing pin layers 21 are positioned in connection with the connecting body 22. The connector 22 is coaxial with the emission axis. The connector 22 has a hollow cylindrical shape. The ionization needle layers are arranged on the connector, and each ionization needle layer is uniformly distributed at intervals or unevenly distributed at intervals along the axial direction of the connector.
In the present invention, as shown in fig. 1, the radial cross-sectional shape of the hollow cylinder is circular. Seven sets of sub-corona electrodes are arranged, the outline dimensions of the hollow cylinders are the same, and the hollow cylinders are distributed in a plum blossom shape. The sub-corona electrodes can be arranged into n groups according to design requirements, and the combination shape can be changed randomly according to requirements.
In the present invention, the ionization needle 211 is made of metal such as conductive stainless steel or other conductive composite materials. The invention is preferably an electrically conductive stainless steel material. The intensity of the ionization needle is required to reach the degree of being capable of resisting static wind so as to ensure the ionization effect and the service life.
Example 2:
As shown in fig. 3, the difference between this embodiment and embodiment 1 is that in the present invention, the radial cross-sectional shape of the hollow cylinder may also be hexagonal, twelve sets of sub-corona electrodes are provided, and the outer dimensions of the hollow cylinders are the same, and the hollow cylinders are distributed in a staggered matrix. The dislocation matrix distribution is 3×4.
Example 3:
As shown in fig. 5, the present embodiment provides an electrostatic precipitator including an ionization region 3 and a dust collection region 4 disposed downstream of the ionization region 3, the ionization region 3 including: a first cylindrical housing, and a multi-dimensional corona electrode structure according to embodiment 1 or 2; the multi-dimensional corona electrode structure is axially arranged along the first cylindrical shell.
As shown in fig. 4, the dust collection area 4 includes: the second cylindrical shell is in sealing engagement with the first cylindrical shell; at least one set of dust collection device, the dust collection device is arranged in the second cylindrical shell; the dust collecting device comprises a dust collecting polar plate 41 and a repulsive polar plate 42 which are arranged in parallel, a second air duct is formed between the dust collecting polar plate 41 and the repulsive polar plate 42, and the second air duct is connected with the first air duct.
As shown in fig. 4, the dust collecting plate 41 and the repulsive plate 42 are both wave plates.
In summary, the multi-dimensional needle point discharge is combined with the optimized collector structure, the original collector adopts a flat plate structure, the optimized collector adopts a curve, the higher dust collection area under the same volume is realized, the running stroke of superfine particulate matters is further increased, the collected probability is increased, the primary purification efficiency is improved, and the problem of low primary efficiency of the existing electric purification is solved. Due to the adoption of the multi-dimensional needle-shaped discharge structure, the ionization concentration is at least 50% higher than the original needle-shaped discharge, meanwhile, the fault rate caused by broken wire of the corona wire in the original scheme is reduced to zero, the corona onset voltage of the existing wire-shaped discharge is reduced, the ozone generation rate is at least 50%, and the ignition fault is reduced.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (12)
1. A multi-dimensional corona electrode structure comprising at least one set of sub-corona electrodes, said sub-corona electrodes comprising:
a grounding electrode (1) which is hollow and cylindrical;
The multi-dimensional ionization electrode (2) is arranged inside the grounding electrode (1), the multi-dimensional ionization electrode (2) comprises a plurality of ionization needle layers (21) which are distributed in the inner cavity of the hollow cylinder one by one along the axial direction of the hollow cylinder of the grounding electrode (1), the ionization needle layers (21) comprise a plurality of ionization needles (211) which are radially distributed by taking a radiation axis as the center, and a first air channel is formed between the multi-dimensional ionization electrode (2) and the inner wall of the grounding electrode (1);
At least part of the ionizing needle layer (21) comprises long needles (212) taking the radiation axis as a center and short needles (213) arranged at intervals along the long needles (212);
the short needle (213) comprises a needle body which is arranged between two adjacent long needles (212) with the radiation shaft as a center, and at least one pair of small needles (214) arranged at the free ends of the long needles (212);
The ionization needles (211) in the ionization needle layer (21) are uniformly distributed in a radial manner with the radial axis as the center;
The multidimensional ionization electrode (2) further comprises a connector (22) coaxially arranged with the radiation shaft, and the ionization needles (211) in each group of ionization needle layers (21) are connected and positioned with the connector (22);
the ionization needles (211) in each ionization needle layer (21) are distributed on the same plane perpendicular to the radiation axis.
2. The multi-dimensional corona electrode structure of claim 1, wherein said ionizing needle layer (21) comprising said long needles (212) and short needles (213) is snowflake-shaped.
3. The multi-dimensional corona electrode structure according to claim 1, wherein the ionization needles (211) in the ionization needle layers (21) are uniform in length, and each ionization needle layer (21) is provided with 6-30 ionization needles (211).
4. The multi-dimensional corona electrode structure of claim 1, wherein the free end of the ionizing needle (211) is at a distance of 2mm to 20mm from the inner wall of the hollow cylinder.
5. The multi-dimensional corona electrode structure of claim 1, wherein said connector (22) is coaxial with said ground electrode.
6. The multi-dimensional corona electrode structure of claim 5, wherein said connector (22) is hollow cylindrical.
7. The multi-dimensional corona electrode structure of claim 1, wherein said hollow barrel is circular or hexagonal in radial cross-sectional shape.
8. The multi-dimensional corona electrode structure of claim 1 wherein said sub-corona electrodes are provided in at least two sets and the outer dimensions of the hollow cylinders are the same.
9. The multi-dimensional corona electrode structure of claim 1, wherein said ionizing pin (211) is made of stainless steel.
10. An electrostatic precipitator comprising an ionization zone (3) and a dust collection zone (4) arranged downstream of the ionization zone (3), characterized in that the ionization zone (3) comprises: a first cylindrical housing, a multi-dimensional corona electrode structure according to any one of claims 1-9; the multi-dimensional corona electrode structure is axially arranged along the first cylindrical shell.
11. Electrostatic precipitator according to claim 10, in which the dust collection zone (4) comprises:
the second cylindrical shell is in sealing engagement with the first cylindrical shell;
At least one set of dust collection device, the dust collection device is arranged in the second cylindrical shell; the dust collecting device comprises a dust collecting pole plate (41) and a repulsive pole plate (42) which are arranged in parallel, a second air duct is formed between the dust collecting pole plate (41) and the repulsive pole plate (42), and the second air duct is connected with the first air duct.
12. Electrostatic precipitator according to claim 11, in which the collecting plates (41) and the repelling plates (42) are wave plates.
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| CN110420757B (en) * | 2019-07-03 | 2024-09-06 | 珠海格力电器股份有限公司 | Electrode structure for air purification and air purifier |
| CN110560267A (en) * | 2019-09-19 | 2019-12-13 | 珠海格力电器股份有限公司 | Electrode structure and electrostatic purification equipment |
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