An electrode structure capable of conducting electricity, a dust collecting filter element, and an electrostatic dust collector
By using electrode units and a second electrode unit made of conductive materials with a surface resistivity of 10¹³ to 10¹⁷ Ω/m, the problems of insufficient electrode units and high production costs in electrostatic precipitators are solved, achieving more efficient dust removal and lower production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHUNDE APOLLO AIR CLEANER
- Filing Date
- 2025-06-12
- Publication Date
- 2026-07-31
AI Technical Summary
The electrode units of existing electrostatic precipitators have low surface resistivity, requiring an insulating layer to prevent sparks. This results in a small number of electrode units, high production costs, and low efficiency.
The electrode unit and the second electrode unit are made of conductive material with a surface resistivity between 10¹³ and 10¹⁷ Ω/m. They are arranged at intervals to form a conductive structure, avoiding the covering of the insulating layer and achieving safe and efficient dust removal.
Without increasing the risk of sparks, the safety and production efficiency of the electrode structure are improved, the number of electrode units is increased, dust removal efficiency is improved, and production costs are reduced.
Smart Images
Figure CN224573887U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of dust collection device technology, and in particular to a conductive electrode structure, a dust collection filter element, and an electrostatic dust collector. Background Technology
[0002] An electrostatic precipitator, also known as an electrostatic dust collector, is a device that generates a high-voltage electrostatic field. This field ionizes the passing dust-laden gas, causing dust particles to combine with ions and become charged. Under the influence of the electric field, these particles are then adsorbed onto electrodes.
[0003] Electrostatic precipitators are widely used in industries such as metallurgy and chemicals, and with technological advancements, they are gradually being applied to everyday life. However, because electrostatic precipitators generate high-voltage electrostatic fields during operation, safety issues such as preventing sparks are of concern to those skilled in the art.
[0004] In existing electrode units, the surface resistivity of the electrode plates is generally less than 10. 8 To avoid sparks, an insulating layer is typically placed around the outer perimeter of the electrode plate. This insulating layer reduces the risk of spark generation. Consequently, the overall thickness of the electrode unit is large, and the number of electrode units that can be placed in the same space is small.
[0005] Meanwhile, the production process requires additional fabrication and assembly of the insulation layer, increasing production costs and reducing efficiency. Furthermore, the insulation layer must cover the electric field generation portion of the electrode plate while simultaneously ensuring the plate remains exposed for connection to a high-voltage power supply, demanding stringent production requirements. Utility Model Content
[0006] In view of this, the purpose of this application is to provide a conductive electrode structure, a dust collection filter element, and an electrostatic dust collector to solve some or all of the above-mentioned problems.
[0007] To achieve the above-mentioned technical objectives, the first aspect of this application provides an electrode structure capable of conducting electricity, comprising: a plurality of electrode units and a plurality of second electrode units;
[0008] The electrode unit has a surface resistivity of 10. 13 Up to 10 17 Sheet or columnar structures made of conductive materials with a strength between Ω / m;
[0009] The second electrode unit is arranged at a distance from the first electrode unit.
[0010] Furthermore, the electrode unit has a layered structure.
[0011] Furthermore, the second electrode unit has a surface resistivity of 10. 13 Up to 10 17 Sheet or columnar structures made of materials with an Ω / m ratio.
[0012] Furthermore, the second electrode unit has a layered structure.
[0013] Furthermore, the distance between the electrode unit and the second electrode unit is 0.3-5 mm.
[0014] Furthermore, the thickness of the electrode unit and the second electrode unit is 0.1 to 4 mm.
[0015] Furthermore, both the electrode unit and the second electrode unit are either planar sheets or curved sheets.
[0016] Furthermore, the electrode unit and the second electrode unit are one of the following: undulating sheet, C-shaped sheet, and spiral sheet.
[0017] Furthermore, the electrode unit is connected to a high potential;
[0018] The second electrode unit is connected to a low potential;
[0019] The electrode unit has a columnar structure;
[0020] The second electrode unit has a sheet-like structure.
[0021] Furthermore, both the second electrode unit and the electrode unit are annular columnar;
[0022] Both the second electrode unit and the electrode unit comprise multiple units;
[0023] The plurality of second electrode units and the plurality of said electrode units are arranged in an alternating ring around each other.
[0024] Furthermore, both the electrode unit and the second electrode unit are plate-shaped;
[0025] Both the electrode unit and the second electrode unit comprise multiple units, which are arranged in an alternating parallel interval.
[0026] Furthermore, the electrode unit is connected to a high potential;
[0027] The second electrode unit is connected to a low potential;
[0028] Both the electrode unit and the second electrode unit are plate-shaped;
[0029] The electrode unit is provided with a pointed protrusion.
[0030] Furthermore, the electrode unit is connected to a high potential;
[0031] The second electrode unit is connected to a low potential;
[0032] Both the electrode unit and the second electrode unit are plate-shaped;
[0033] The second electrode plate protrudes outward relative to the electrode plate.
[0034] A second aspect of this application provides a dust collection filter element, comprising: a support member and an electrode structure capable of conducting electricity as described in any one of the above claims;
[0035] The electrode unit and the second electrode unit in the electrode structure are disposed on the support member.
[0036] A third aspect of this application provides an electrostatic precipitator, comprising: a high-voltage power supply assembly and an electrode structure capable of conducting electricity as described in any of the preceding claims;
[0037] The high-voltage power supply component is connected to the electrode unit in the electrode unit and is used to provide the electrode unit with a voltage of 5000 to 15000V.
[0038] As can be seen from the above technical solutions, this application provides a conductive electrode structure, a dust collection filter element, and an electrostatic dust collector; wherein, the conductive electrode structure includes: a plurality of electrode units and a plurality of second electrode units; the electrode units have a surface resistivity of 10 13 Up to 10 17 A sheet or columnar structure made of a material with an Ω / m ratio between 1 and 2; the second electrode unit is spaced apart from the electrode unit.
[0039] In this design, the electrode unit can be either a high-potential electrode unit or a low-potential electrode unit. Since the resistivity of the electrode unit is around 10... 13 Up to 10 17 Between Ω / m, the surface current generated after applying voltage is extremely low, allowing it to meet the requirement of no sparking without an insulating layer, thus improving the safety of the electrode structure. Furthermore, without an insulating layer, the overall thickness of the electrode structure is lower and the manufacturing process is simpler, allowing for the placement of more electrode units and second electrode units within the same space, thereby improving dust removal efficiency and production efficiency. Attached Figure Description
[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0041] Figure 1 A schematic diagram of a parallel-spaced electrode structure provided in an embodiment of this application;
[0042] Figure 2 A schematic diagram of a curved sheet-like electrode structure that is capable of conducting electricity, provided in an embodiment of this application;
[0043] Figure 3 This is a schematic diagram illustrating an electrode structure capable of conducting electricity, wherein the portion is planar and the portion is curved, according to an embodiment of this application.
[0044] Figure 4 A schematic diagram of a gradually narrowing gap structure of an electrode structure capable of conducting electricity, provided in an embodiment of this application;
[0045] Figure 5 A schematic diagram of a conductive electrode structure, which is a spiral sheet structure, provided for an embodiment of this application;
[0046] Figure 6 A schematic diagram showing that an electrode structure capable of conducting electricity, provided in an embodiment of this application, is partly an undulating sheet structure;
[0047] Figure 7 This is a schematic diagram of an electrode structure that is capable of conducting electricity, with one part being a columnar structure and the other part being a sheet structure, provided in an embodiment of this application.
[0048] Figure 8 A cross-sectional view of an electrode structure capable of conducting electricity, provided in an embodiment of this application, showing a columnar structure and a sheet-like structure in some parts;
[0049] Figure 9 This is a schematic diagram of an electrode structure that is capable of conducting electricity, with one part being a conical or cylindrical structure and the other part being a sheet-like structure, provided as an embodiment of this application.
[0050] Figure 10 A cross-sectional view of an electrode structure capable of conducting electricity, provided in an embodiment of this application, showing a columnar structure and a sheet-like structure in some parts;
[0051] Figure 11 A schematic diagram of a multi-layered annular columnar structure as an embodiment of this application provides an electrode structure capable of conducting electricity;
[0052] Figure 12 This is a schematic diagram of an electrode structure that is capable of conducting electricity, with one part being columnar and the other part being an annular sheet, provided in an embodiment of this application.
[0053] Figure 13 A schematic diagram showing a pointed protrusion in the width direction of an electrode unit in an electrode structure capable of conducting electricity, as provided in an embodiment of this application.
[0054] Figure 14 This is a schematic diagram showing a second electrode unit protruding from the electrode unit in an electrode structure capable of conducting electricity, as provided in an embodiment of this application.
[0055] In the figure: 10, electrode unit; 20, second electrode unit; 30, support member. Detailed Implementation
[0056] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.
[0057] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0058] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0059] Please see Figure 1 In this application, a first aspect provides a conductive electrode structure, comprising: a plurality of electrode units 10 and a plurality of second electrode units 20. The electrode units have a surface resistivity of 10... 13 Up to 10 17 A sheet or columnar structure made of conductive material with a strength between Ω / m; the second electrode unit is spaced apart from the electrode unit.
[0060] In this embodiment, both electrode unit 10 and second electrode unit 20 in the electrode structure are conductive. Electrode unit 10 uses materials with a surface resistivity of 10... 13 Up to 1017 The electrode unit 10 is made of a conductive material with a resistance between Ω and m, which gives the shaped electrode unit 10 a high surface resistance.
[0061] Among them, the surface resistivity is 10 13 Up to 10 17 Conductive materials with a resistance ratio between Ω / m are existing materials. For example, such conductive materials may include resins and conductive dielectrics. The conductive dielectric may be, for example, carbon black, nano-sized carbon powder, etc.
[0062] It should be noted that surface resistivity is an inherent property of materials; for example, the surface resistivity of epoxy resin is around 10⁻⁶. 14 Up to 10 16 The surface resistivity of polyethylene (PE) and polypropylene (PP) is between Ω / m and 10 Ω / m. 13 Up to 10 16 The surface resistivity of polytetrafluoroethylene (PTFE) is between Ω / m and 10. 15 Up to 10 18 The surface resistivity is between Ω / m. Therefore, after selecting suitable raw materials and conducting measurements, materials that meet the surface resistivity requirements can be chosen as raw materials. Then, by adding an appropriate amount of conductive medium, the aforementioned material can acquire conductivity, thereby obtaining a conductive material that meets the aforementioned surface resistivity requirements.
[0063] It should be noted that the method of adding an appropriate proportion of conductive medium to a raw material with a known surface resistivity to form a conductive material that meets the aforementioned surface resistivity requirements is an existing technology. For example, in the article "Preparation and Performance Study of Antistatic Semi-rigid Polyurethane Foam" published by the Institute of Chemical Materials, China Academy of Engineering Physics in 2009, a method was introduced to add carbon black and / or quaternary ammonium salts as antistatic components (equivalent to conductive mediums) to a sample (SRPUF), thereby reducing the volume resistivity of the sample (SRPUF) from 10... 12 Ω / m decreased to 10 9 Ω / m. In other words, this paper introduces a scheme to form a conductive material by adding a conductive dielectric to a non-conductive material. Furthermore, in this method, the resistivity of the final material can be adjusted by regulating the amount of carbon black added.
[0064] As can be seen from the above-disclosed method, once the surface resistivity of the raw materials is known, the surface resistivity of the final conductive material can be adjusted according to the amount of conductive media such as carbon black added.
[0065] Taking epoxy resin as an example, after measuring the surface resistivity of this batch of epoxy resin (e.g., 10), 15 (Ω / m), the target is to achieve a surface resistivity of 10 Ω / m. 13 Up to 10 14For electrode unit 10 with a surface resistivity of Ω / m, the method described above can be used: directly adding carbon black to epoxy resin for mixing. Specifically, the epoxy resin can be divided into multiple sample batches, and then different proportions of carbon black can be added to each batch. After molding the mixed raw materials from different batches, the batch of molded samples that meets the surface resistivity requirements can be selected, and the proportion of carbon black added to that batch can be used as the addition ratio for this production, thus obtaining a conductive material that meets the aforementioned surface resistivity requirements.
[0066] Therefore, given the surface resistivity of a material, determining the appropriate proportion of conductive dielectric to add to form a conductive material that meets the surface resistivity requirements is something that a person skilled in the art can determine through a limited number of experiments. Consequently, the method for obtaining a conductive material with the aforementioned surface resistivity is considered prior art.
[0067] For example, chemical production companies such as Kingfa Science & Technology Co., Ltd. produce conductive materials that meet the aforementioned surface resistivity requirements and are used as antistatic agents. For instance, Kingfa Science & Technology Co., Ltd. disclosed in patent document CN108384117A that by combining polypropylene resin with different proportions of antistatic agents (equivalent to conductive media), the original surface resistivity of 10... 16 Polypropylene resin with a surface resistivity of 10 Ω / m was prepared. 14 Ω / m, 10 13 Conductive materials with Ω / m (refer to section
[0090] of their specification).
[0068] Based on the aforementioned patent documents, it can also be proven that conductive materials with the aforementioned surface resistivity belong to the prior art.
[0069] Furthermore, as can be seen from the aforementioned existing technologies, conductive materials with high surface resistivity obtained by adjusting the surface resistivity of a sample using conductive media such as carbon black are generally used for antistatic applications. In this embodiment, however, the surface resistivity is 10... 13 Up to 10 17 The conductive material with a strength between Ω / m is used to prepare the electrode unit 10, and the resulting electrode unit 10 is used as part of the electrode structure, specifically as part of the electrode structure in the electrostatic precipitator.
[0070] The inventors discovered that a surface resistivity of 10 13 Up to 10 17 The Ω / m electrode unit 10, when used as a primary stage in an electrostatic precipitator and supplied with voltage, can generate a stable electrostatic field for dust removal. Due to its high resistivity, the current on its surface is extremely low, so it cannot generate sparks and will not cause an electric shock when touched by a human.
[0071] Specifically, the experimental results of using the electrode unit 10 provided in this embodiment as the discharge electrode for dust removal experiments can be found in Table 1 below:
[0072]
[0073] Table 1 shows the dust removal efficiency test results of electrode unit 10 as the discharge electrode under different surface resistivity conditions at a wind speed of 2 m / s.
[0074] According to Table 1, the surface resistivity is 10 13 Up to 10 17 Electrode units with an Ω / m ratio can effectively reduce the risk of sparks and electric shock, while meeting the dust removal requirements of electrostatic precipitators (generally 70% to 95%).
[0075] It should be noted that in existing electrostatic precipitators, the applied voltage is generally between 4000 and 6000V, and the distance between the high-potential and low-potential electrodes is generally 2-6mm. Because electrode unit 10 has high surface resistivity, even at 15000V, the current it generates is still less than 15μA, far less than the current felt by the human body; therefore, it can apply a wider range of voltages, thereby reducing the control requirements of the high-voltage power supply components in the electrostatic precipitator.
[0076] Meanwhile, the above table uses an existing spacing of 2mm as an example for testing. In practical applications, because electrode unit 10 has high surface resistivity, even with a smaller spacing, the surface current of electrode unit 10 is extremely low and no breakdown sparks are generated. Therefore, in practical applications, the electrode unit 10 provided in this embodiment can have a smaller spacing with the second electrode unit 20, making the electrode structure more compact. More electrode units 10 and second electrode units 20 can be arranged in the same space, thereby improving dust removal efficiency.
[0077] It should be noted that even when maintaining the same spacing as the prior art, for example, a spacing of 2 mm, the electrode unit 10 does not need to be equipped with an insulating layer, so its thickness can be thinner than that of the existing electrode unit, and thus it is also possible to arrange more electrode structures to improve dust removal efficiency.
[0078] In application, as one implementation method, electrode unit 10 can be used as a discharge electrode, that is, a high-potential electrode; the second electrode unit 20 can be used as a low-potential electrode.
[0079] In another implementation, electrode unit 10 can be used as a low-potential electrode; the second electrode unit 20 can be used as a high-potential electrode.
[0080] The second electrode unit 20 can use the electrode structure in the prior art, for example, it can adopt a low surface resistivity (10).8 The structure consists of electrode plates (with an Ω / my or less) and an outer surface covered with an insulating layer.
[0081] In a more specific embodiment, the electrode unit 10 has a layered structure.
[0082] Specifically, when the surface resistivity is 10 13 Up to 10 17 After using a conductive material with a conductivity between Ω / m, the electrode unit 10 can be directly molded into a layered structure, such as a single-layer sheet or a multi-layer structure formed by molding the same material multiple times. Since it is a layered structure that can be directly molded, there is no need for assembly processes, thereby simplifying the production process, improving production efficiency, and reducing production costs.
[0083] In one implementation, in practical applications, the electrode unit 10 can be directly used as an electrode after it is manufactured.
[0084] In other embodiments, electrode unit 10 may be covered on the support. For example, electrode unit 20 may cover the outer periphery of an existing electrode plate. In this case, electrode unit 10 is a hollow sheet. In this case, electrode unit 10 with high surface resistivity can also generate an electrostatic field while reducing the risk of sparks and electric shock.
[0085] In another embodiment, the second electrode unit 20 also has a surface resistivity of 10. 13 Up to 10 17 Sheet or columnar structures made of materials with an Ω / m ratio.
[0086] Specifically, electrode unit 10 and second electrode unit 20 can be made of the same conductive material, and both can be mass-produced quickly using a direct molding method. That is, the second electrode unit 20 can also be a layered structure. The resulting conductive structures can then be used as electrode unit 10 and second electrode unit 20, respectively, further simplifying the production process and improving production efficiency.
[0087] In the embodiments provided in this application, where both electrode unit 10 and the second electrode unit 20 have high surface resistivity and are layered structures, the spacing between them can be further reduced compared to the prior art. In the embodiments provided in this application, the spacing between them can be configured to be 0.3-5 mm.
[0088] Optionally, the thickness of electrode unit 10 and second electrode unit 20 can be configured to be 0.1 to 4 mm.
[0089] As the distance between electrode unit 10 and second electrode unit 20 decreases, the dust removal efficiency of the electrostatic precipitator can be further improved, and no sparks will be generated due to the extremely low surface current. See Table 2 below for details:
[0090]
[0091] Table 2 shows the change in dust removal efficiency as the spacing decreases after both electrode unit 10 and the second electrode unit 20 adopt a high surface resistivity structure.
[0092] Based on Table 2, it can be reasonably deduced that using the electrode unit 10 and the second electrode unit 20 provided in this embodiment can enable the prepared electrode structure to have a lower inter-electrode gap and achieve higher dust collection efficiency, while avoiding breakdown sparks and electric shock.
[0093] In a more specific embodiment, both electrode unit 10 and the second electrode unit 20 are planar sheets or both are curved sheets.
[0094] As one implementation method, such as Figure 1 As shown, both electrode unit 10 and second electrode unit 20 can be planar sheets. After electrode unit 10 is connected to a high potential and second electrode unit 20 is connected to a low potential, an electrostatic field is formed between them.
[0095] As one implementation method, such as Figure 1 As shown, both electrode unit 10 and the second electrode unit 20 can be planar sheets; both electrode unit 10 and the second electrode unit 20 include multiple units, which are arranged in an alternating parallel interval.
[0096] In this embodiment, since multiple electrode units 10 and multiple second electrode units 20 are distributed alternately in parallel intervals, a uniform and stable electrostatic field can be formed between adjacent electrode units 10 and second electrode units 20, ensuring the dust removal effect.
[0097] Optionally, in the above embodiments, the spacing between each group of electrode units 10 and the second electrode unit 20 is the same.
[0098] As one implementation method, such as Figure 2 As shown, both electrode unit 10 and second electrode unit 20 can be curved sheets. When electrode unit 10 and second electrode unit 20 are curved and parallel, they can be equidistant. When the degree of curvature of electrode unit 10 and second electrode unit 20 is inconsistent or they are not parallel, they are non-equidistant, such as... Figure 2 The diagram shows a non-equidistant structure. In this non-equidistant structure, the electric field strength generated between electrode unit 10 and the second electrode unit 20 varies with position, thus enabling different dust removal effects at different locations.
[0099] As one implementation method, such as Figure 3 As shown, electrode unit 10 and the second electrode unit 20 can be either planar or curved. In this case, the electric field strength generated between electrode unit 10 and the second electrode unit 20 will vary with position.
[0100] As one implementation method, such as Figure 4 As shown, the electrode unit 10 and the second electrode unit 20 are configured with a structure in which the distance between them gradually decreases along the air inlet direction, so as to facilitate the inflow of dust-laden gas and achieve high-efficiency dust collection under low-distance conditions.
[0101] In one embodiment, when the electrode unit 10 and the second electrode unit 20 are curved sheets, in addition to the C-shaped sheets listed above, the electrode unit 10 and the second electrode unit 20 may also be spiral sheets, for example.
[0102] Specifically, such as Figure 5 As shown, both electrode unit 10 and the second electrode unit 20 are spiral-shaped and spaced apart. After electrode unit 10 and the second electrode unit 20 are connected to high and low potentials respectively, an electrostatic field can be formed between them. The spiral-shaped electrode unit 10 and the second electrode unit 20 can adapt to more process requirements and meet the dust collection requirements in some feature formation spaces.
[0103] In one embodiment, the electrode unit 10 and / or the second electrode unit 20 may also be in the form of undulating sheets, that is, the surface of the electrode unit 10 and / or the second electrode unit 20 has wavy or mountain-shaped protrusions.
[0104] In one embodiment, taking electrode unit 10 connected to a high potential and second electrode unit 20 connected to a low potential as an example, please refer to [link to relevant documentation]. Figure 6 The first electrode unit 10 has a mountain-shaped undulating surface, while the second electrode unit 20 is a planar sheet. In this embodiment, the mountain-shaped electrode unit 10 can generate a better ionization effect through the tip discharge effect, so as to better ionize the gas and charge the dust, thereby achieving a better dust removal effect. At the same time, safety can be ensured under the condition of high surface resistivity.
[0105] Please see Figure 7 and Figure 8 In one embodiment, electrode unit 10 is connected to a high potential; second electrode unit 20 is connected to a low potential; electrode unit 10 has a columnar structure; and second electrode unit 20 has a sheet-like structure.
[0106] As a columnar electrode unit 10, it can also achieve the tip discharge effect due to its small radius of curvature.
[0107] It should be noted that in this embodiment, the second electrode unit 20 can be a planar sheet or an arc-shaped sheet parallel to the electrode unit 10.
[0108] It should be noted that the columnar electrode unit 10 can be either hollow or solid. In the layered structure mentioned above, if the columnar electrode unit 10 is a one-time molding structure formed by uniformly mixing materials, it can also be regarded as a single-layer layered structure.
[0109] It should be noted that, in this embodiment, the second electrode unit 20 can be considered as a closed annular sheet, such as... Figure 12 As shown.
[0110] In applications, such as Figure 7 The electrode unit 10 and the second electrode unit 20 shown may include multiple groups, and the multiple groups are distributed in parallel intervals.
[0111] In one embodiment, see Figure 9 and Figure 10 Electrode unit 10 is connected to a high potential; the second electrode unit 20 is connected to a low potential; electrode unit 10 is conical; the second electrode unit 20 is a sheet-like structure. Figure 9 In the illustrated embodiment, the second electrode unit 20 is a closed annular sheet, thus it belongs to both sheet structure and annular columnar structure.
[0112] exist Figure 9 and Figure 10 In the illustrated embodiment, the spacing between electrode unit 10 and the second electrode unit 20 gradually decreases, which enables the dust collection effect to gradually increase as the spacing decreases.
[0113] In one embodiment, see Figure 11 The second electrode unit 20 and the electrode unit 10 can both be annular columnar; the second electrode unit 20 and the electrode unit 10 each include multiple units; the multiple second electrode units and the multiple electrode units are arranged alternately around each other.
[0114] In this embodiment, the second electrode unit 20 and the electrode unit 10 can be configured as dust removal components with different radii, either circular or elliptical, according to actual needs.
[0115] In one embodiment, electrode unit 10 is connected to a high potential; second electrode unit 20 is connected to a low potential; both electrode unit 10 and second electrode unit 20 are plate-shaped; and electrode unit 10 is provided with a pointed protrusion.
[0116] Specifically, such as Figure 6As shown, the pointed protrusion can be disposed on the normal surface of the electrode unit 10, that is, on the surface opposite to the second electrode unit 20.
[0117] In another implementation, such as Figure 13 As shown, the pointed protrusion can also be provided on the side of the electrode unit 10 along the width direction.
[0118] The pointed protrusions can act as a tip discharge, increasing the electric field near the protrusions and generating a stronger corona discharge phenomenon, thereby accelerating the dust removal speed and improving the dust collection rate.
[0119] In one embodiment, see Figure 14 Electrode unit 10 is connected to a high potential; second electrode unit 20 is connected to a low potential; both electrode unit 10 and second electrode unit 20 are plate-shaped; second electrode unit 20 protrudes outward relative to electrode unit 10.
[0120] Taking the example that both electrode unit 10 and the second electrode unit 20 are disposed on the support member 30, the second electrode unit 20 protrudes outward relative to the electrode unit 10, which means that the outermost end of the second electrode unit 20 is far away from the support member 30 relative to the electrode unit 10. This allows the user to first contact the grounded second electrode unit 20 instead of the electrode unit 10 connected to a high potential when contacting the electrode structure, which can further improve safety.
[0121] Please see Figure 14 The second aspect of this application provides a dust collection filter element, including: a support member 30 and an electrode structure capable of conducting electricity as described above; an electrode unit 10 and a second electrode unit 20 in the electrode structure are disposed on the support member 30.
[0122] The support member 30 is used to support the electrode unit 10 and the second electrode unit 20.
[0123] A third aspect of this application provides an electrostatic precipitator, comprising: a high-voltage power supply assembly and an electrode structure capable of conducting electricity as described above; the high-voltage power supply assembly is connected to an electrode unit 10 in the electrode unit and is used to provide a voltage of 5000 to 15000V to the electrode unit 10.
[0124] Specifically, in this embodiment, the electrode unit 10 uses a surface resistivity of 10... 13 Up to 10 17 Made of conductive materials with a voltage rating between Ω / m, it can withstand a wider voltage range and higher voltage values while maintaining safety.
[0125] In practical applications, the inventors have found that providing a voltage of 5,000 to 15,000 V to the electrode unit 10 by the high-voltage power supply component can improve the dust removal efficiency.
[0126] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An electrically conductive electrode structure, characterized in that include: Several electrode units and several second electrode units; The electrode unit is a sheet or columnar structure made of a conductive material having a surface resistivity of 10 13 to 10 17 Ω / m. The second electrode unit is spaced apart from the first electrode unit.
2. The electrically conductive electrode structure of claim 1, wherein The electrode unit has a layered structure.
3. The electrically conductive electrode structure of claim 1, wherein The second electrode unit is a sheet-like or column-like structure made of a material having a surface resistivity of 10 13 to 10 17 Ω / m.
4. The electrically conductive electrode structure of claim 3, wherein The second electrode unit has a layered structure.
5. The electrically conductive electrode structure of claim 1, wherein The distance between the electrode unit and the second electrode unit is 0.3-5 mm.
6. The electrically conductive electrode structure of claim 1, wherein The thickness of the electrode unit and the second electrode unit is 0.1 to 4 mm.
7. The electrically conductive electrode structure of claim 1, wherein Both the electrode unit and the second electrode unit are either planar sheets or curved sheets.
8. The electrically conductive electrode structure of claim 7, wherein, The electrode unit and the second electrode unit are one of the following: undulating sheet, C-shaped sheet, and spiral sheet.
9. The electrically conductive electrode structure according to any one of claims 2 to 6, characterized in that The electrode unit is connected to a high potential; The second electrode unit is connected to a low potential; The electrode unit has a columnar structure; The second electrode unit has a sheet-like structure.
10. The electrically conductive electrode structure according to any one of claims 2 to 6, characterized in that Both the second electrode unit and the electrode unit are annular columnar; Both the second electrode unit and the electrode unit comprise multiple units; The plurality of second electrode units and the plurality of said electrode units are arranged in an alternating ring around each other.
11. The electrically conductive electrode structure according to any one of claims 2 to 8, characterized in that Both the electrode unit and the second electrode unit are plate-shaped; Both the electrode unit and the second electrode unit comprise multiple units, which are arranged in an alternating parallel interval.
12. The electrically conductive electrode structure according to any one of claims 2 to 8, characterized in that The electrode unit is connected to a high potential; The second electrode unit is connected to a low potential; Both the electrode unit and the second electrode unit are plate-shaped; The electrode unit is provided with a pointed protrusion.
13. The electrically conductive electrode structure according to any one of claims 2 to 8, characterized in that The electrode unit is connected to a high potential; The second electrode unit is connected to a low potential; Both the electrode unit and the second electrode unit are plate-shaped; The second electrode unit protrudes outward relative to the electrode unit.
14. A dust collecting filter cartridge, characterized by, include: The support member and the conductive electrode structure as described in any one of claims 1 to 13; The electrode unit and the second electrode unit in the electrode structure are disposed on the support member.
15. An electrostatic precipitator, characterized by include: The high-voltage power supply assembly and the conductive electrode structure as described in any one of claims 1 to 13; The high-voltage power supply component is connected to the electrode unit in the electrode unit and is used to provide the electrode unit with a voltage of 5000 to 15000V.