Electrostatic dust collection polar plate, filter and assembly method of electrostatic dust collection polar plate and filter

Abstract

The invention belongs to the technical field of electrostatic air filters, and particularly relates to an electrostatic dust collection polar plate, a filter and an assembling method of the electrostatic dust collection polar plate. The electrostatic dust collection polar plate comprises a base plate, a conductive coating area is arranged in the middle of the base plate, and a plurality of clamping grooves are symmetrically formed in the positions, located on the two sides of the conductive coating area, of the base plate; a plurality of groups of step-shaped bent plates are symmetrically arranged on the two sides, located in the conductive coating area, of the base plate, the positions of the step-shaped bent plates and the positions of the clamping grooves are staggered, and each step-shaped bent plate is composed of a high-position clamping plate part located on the outer side and a low-position isolation plate part located on the inner side; the filter is formed by staggered distribution, clamping and stacking of a plurality of electrostatic dust collection polar plates. No extra separator is needed, clamping, stacking and assembling can be achieved through the structure of the electrostatic dust collection polar plate, operation is easy, and the assembling difficulty is reduced; the assembled whole structure is good in stability, after dust removal operation such as mechanical vibration or water film washing is carried out regularly, the uniformity of an electric field can still be kept, and the collection effect is ensured.

Description

Technical Field

[0001] This invention belongs to the field of electrostatic air filter technology, and particularly relates to an electrostatic dust collection plate, a filter, and an assembly method thereof. Background Technology

[0002] Electrostatic dust collection plates are the core component of electrostatic air filters. Their primary function is to efficiently capture charged dust particles using the Coulomb force generated by a high-voltage electric field, thus purifying the air. Specifically, when dust-laden air passes through the ionization zone and becomes charged, the positively charged particles enter the dust collection zone with the airflow. The dust collection zone consists of multiple sets of parallel metal plates, with grounded plates (collecting electrodes) and plates with high positive potential arranged alternately to form a uniform, strong electric field. Driven by the Coulomb force in this electric field, the charged dust particles migrate directionally to the surface of the collecting plates with opposite charges and are firmly adsorbed, thus separating from the airflow. This process eliminates the need for physical filters, relying solely on the electric field force to capture the particles.

[0003] The performance of the electrostatic filtration plates directly determines the filtration efficiency: their spacing design and optimized electric field uniformity enhance dust propagation speed, expand the resistivity range that can capture dust, and suppress back corona phenomena, significantly improving the collection capacity for fine particulate matter and high-resistivity dust. Simultaneously, the dust layer formed on the plate surface needs to be cleaned regularly to maintain a stable electric field strength and ensure long-term efficient operation. In summary, electrostatic filtration plates, through an electric field adsorption mechanism, achieve dynamic removal of charged particles from the air under low wind resistance conditions, making them a key component of the highly efficient purification process in electrostatic filtration technology.

[0004] Existing electrostatic air filters have several shortcomings in use. Firstly, their electrostatic dust collection plate structure is not rationally designed, requiring additional separators for assembly, which is cumbersome. Secondly, the overall structural stability after assembly is poor, making it difficult to maintain electric field uniformity after periodic dust removal operations such as mechanical vibration or water film rinsing, thus affecting collection efficiency. Thirdly, their overall manufacturing cost is high, requiring the design of separators and complex assembly processes. Therefore, the inventors aim to optimize and improve existing electrostatic air filters. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned problems existing in the conventional technology and to provide an electrostatic dust collection plate, a filter and its assembly method.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution: This invention provides an electrostatic dust collection electrode plate, which includes a substrate. A conductive coating area is provided in the middle of the substrate. Several sets of snap-fit ​​grooves are symmetrically opened on both sides of the conductive coating area. Several sets of stepped bending plates are symmetrically arranged on both sides of the conductive coating area. The positions of the stepped bending plates are staggered from the positions of the snap-fit ​​grooves. The stepped bending plates are composed of a high snap-fit ​​plate portion on the outer side and a low isolation plate portion on the inner side.

[0007] Furthermore, in the above-mentioned electrostatic dust collection plate, both sides of the substrate are provided with conductive coating areas, which are formed by applying functional nano-electronic paste to the surface of the substrate through printing or spraying.

[0008] Furthermore, in the above-mentioned electrostatic dust collection electrode plate, the length of the high-position snap-fit ​​plate portion along the width direction of the substrate is equal to the length of the snap-fit ​​groove along the width direction of the substrate, and the height of the low-position isolation plate portion protruding relative to the substrate is used as the spacing value after two adjacent electrostatic dust collection electrode plates are assembled.

[0009] Furthermore, in the aforementioned electrostatic dust collection plates, the height of the high-position snap-fit ​​plate portion of the rear electrostatic dust collection plate exposed from the snap-fit ​​groove corresponding to the front electrostatic dust collection plate is less than or equal to the height of the low-position isolation plate portion protruding relative to the substrate.

[0010] Furthermore, in the aforementioned electrostatic dust collection electrode plate, the substrate and the conductive coating area are provided with mounting holes near both ends, and when the high-position snap-fit ​​plate of the rear electrostatic dust collection electrode plate is snapped into the corresponding snap-fit ​​groove of the front electrostatic dust collection electrode plate, the mounting hole axes on the same side of the adjacent two electrostatic dust collection electrode plates coincide with each other.

[0011] Furthermore, in the aforementioned electrostatic dust collection electrode plate, the substrate and the conductive coating area are provided with a mis-positioning hole at one end.

[0012] Furthermore, in the above-mentioned electrostatic dust collection plate, the conductive coating area is provided with an electric field conduction area near one end, and the area of ​​the conductive coating area other than the electric field conduction area serves as the electric field working area. The resistance value of the electric field conduction area is 20 to 100 times the resistance value of the electric field working area.

[0013] Furthermore, in the aforementioned electrostatic dust collection plate, the electric field guiding area has an overall serpentine structure, and the electric field working area and the electric field guiding area each have blank areas to avoid the corresponding mounting holes.

[0014] The present invention also provides a filter, which is composed of multiple electrostatic dust collection plates that are staggered and stacked together.

[0015] The present invention also provides a method for assembling a filter, comprising the following steps: S1. Set two guide posts, the outer diameter of the guide posts is equal to the outer diameter of the mounting holes, and the spacing between the two guide posts is equal to the spacing between the two mounting holes in the electrostatic precipitator plate. S2. Place the electrostatic precipitator plates sequentially onto the two guide posts, ensuring that the stepped bends of the electrostatic precipitator plates are all facing upwards or downwards, and that adjacent electrostatic precipitator plates face opposite directions; the number of electrostatic precipitator plates is set according to the requirements of the filter. S3. Press down to make the high-position snap-fit ​​plate snap into the corresponding snap-fit ​​groove, thereby pressing the electrostatic dust collection plates together to form an integrated structure, and then remove it from the guide column.

[0016] The beneficial effects of this invention are: 1. Easy assembly: No additional isolation components are required. The electrostatic dust collection plates can be stacked and assembled by snap-fit ​​through their own structure (slots and stepped bending plates), which is simple to operate and reduces the difficulty of assembly.

[0017] 2. Strong structural stability: The overall structure after assembly has good stability. Even after regular dust removal operations such as mechanical vibration or water film rinsing, it can still maintain the uniformity of the electric field and ensure the collection effect.

[0018] 3. Low manufacturing cost: The elimination of the design of isolation components and complex assembly processes reduces the overall manufacturing cost.

[0019] 4. Error-proof function: The error-proof positioning hole can prevent the electrostatic dust collection plate from being installed in the wrong direction during assembly, thus improving assembly efficiency and accuracy.

[0020] 5. Optimize electric field performance: The conductive coating area is equipped with an electric field conduction zone, which can improve the electric field distribution and enhance the collection ability of fine particulate matter and high resistivity dust.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the electrostatic dust collection electrode plate in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the overall structure of the electrostatic dust collection electrode plate in Embodiment 1 of the present invention; Figure 3This is a schematic diagram of the overall structure of the electrostatic dust collection electrode plate in Embodiment 3 of the present invention; Figure 4 This is a three-dimensional structural diagram of the filter in Embodiment 4 of the present invention; Figure 5 This is a schematic diagram of the overall structure of the filter in Embodiment 4 of the present invention; Figure 6 This is a top view of the overall structure of the filter in Embodiment 4 of the present invention; Figure 7 This is a side view of the overall structure of the filter in Embodiment 4 of the present invention; Figure 8 This is a schematic diagram showing the orientation of two adjacent electrostatic dust collection plates in Embodiment 4 of the present invention; In the attached diagram, the components represented by each number are as follows: 1-Substrate, 2-Conductive coating area, 201-Electric field conduction area, 3-Mounting hole, 4-Snap-fit ​​groove, 5-High-position snap-fit ​​plate part, 6-Low-position isolation plate part, 7-Anti-misalignment positioning hole. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0025] like Figure 1 and Figure 2 As shown, this embodiment is an electrostatic dust collection electrode plate, which includes a substrate 1. A conductive coating area 2 is provided in the middle of the substrate 1. Several sets of snap-fit ​​grooves 4 are symmetrically opened on both sides of the conductive coating area 2 on the substrate 1. Several sets of stepped bending plates are symmetrically arranged on both sides of the conductive coating area 2 on the substrate 1. The positions of the stepped bending plates are staggered from the positions of the snap-fit ​​grooves 4. The stepped bending plates are composed of a high snap-fit ​​plate portion 5 located on the outer side and a low isolation plate portion 6 located on the inner side.

[0026] In this embodiment, conductive coating areas 2 are provided on both sides of the substrate 1. The conductive coating areas are formed by applying functional nano-electronic paste to the surface of the substrate by printing or spraying.

[0027] In this embodiment, the length of the high-position snap-fit ​​plate portion 5 along the width direction of the substrate 1 is equal to the length of the snap-fit ​​groove 4 along the width direction of the substrate 1, and the height of the low-position isolation plate portion 6 protruding relative to the substrate 1 is used as the spacing value after the two adjacent electrostatic dust collection plates are assembled.

[0028] In this embodiment, the height of the high-position snap-fit ​​plate portion 5 of the rear electrostatic precipitator plate exposed from the snap-fit ​​groove 4 corresponding to the front electrostatic precipitator plate is less than or equal to the height of the low-position isolation plate portion 6 protruding relative to the substrate 1.

[0029] In this embodiment, the snap-fit ​​groove 4 is formed by directly punching the substrate, and the stepped bending plate is formed by punching the substrate and then bending it outward by 90 degrees.

[0030] Working principle: During assembly, the high-position snap-fit ​​plate 5 of the rear electrostatic precipitator plate snaps into the corresponding snap-fit ​​groove 4 of the front electrostatic precipitator plate, achieving snap-fit ​​between adjacent plates. The height of the protruding low-position isolation plate 6 serves as the spacing between two adjacent electrostatic precipitator plates after assembly, ensuring a suitable distance between the plates and forming a uniform strong electric field. When dust-laden air is charged after passing through the ionization zone, positively charged particles enter the dust collection zone with the airflow. Driven by Coulomb force in the electric field, they migrate directionally to the surface of the dust collection plate (conductive coating area 2) with opposite charge and are firmly adsorbed, thus achieving air purification. Example 2

[0031] This embodiment is an improvement on Embodiment 1. Mounting holes 3 are provided near the two ends of the substrate 1 and the conductive coating area 2. The rear electrostatic precipitator plate and the front electrostatic precipitator plate face opposite directions. When the high-position snap-fit ​​plate 5 of the rear electrostatic precipitator plate snaps into the snap-fit ​​groove 4 corresponding to the front electrostatic precipitator plate, the axes of the mounting holes 3 on the same side of the two adjacent electrostatic precipitator plates coincide with each other.

[0032] Working principle: The mounting hole 3 facilitates the positioning and assembly of the electrostatic precipitator plates via the guide posts during filter assembly. During assembly, the electrostatic precipitator plates are sequentially placed on the two guide posts, ensuring that adjacent electrostatic precipitator plates face opposite directions and that the mounting holes 3 are aligned. Then, by pressing, the high-position snap-fit ​​plate 5 is snapped into the snap-fit ​​groove 4, achieving snap-fit ​​stacking of the plates and improving the accuracy and stability of the assembly. Example 3

[0033] This embodiment is an improvement on embodiment two, with a mis-positioning hole 7 provided at one end of the substrate 1 and the conductive coating area 2.

[0034] like Figure 3 As shown, the conductive coating area 2 has an electric field conduction area 201 located near one end (such as near the anti-error positioning hole 7). The area of ​​the conductive coating area 2 other than the electric field conduction area 201 is used as the electric field working area. The resistance value of the electric field conduction area 201 is 20 to 100 times the resistance value of the electric field working area.

[0035] In this embodiment, the electric field guiding area 201 has an overall serpentine structure, and the electric field working area and the electric field guiding area 201 each have a blank area to avoid the corresponding mounting hole 3.

[0036] Working Principle: The anti-misalignment positioning hole 7 prevents incorrect installation orientation of the electrostatic dust collection plate during assembly. The conductive coating features an electric field conduction zone. When discharge occurs within the working area cavity, the current on the dust collection plate increases. The voltage drop in the high-resistance and low-resistance areas is proportional to the resistance values ​​of the two areas, respectively. The voltage in the working area (i.e., the low-voltage area) decreases rapidly, thereby reducing the electric field and energy within the working area cavity, preventing continuous discharge in the working area, and ensuring the stability and safety of the substrate. The tight bonding between the nano-insulating substrate and the nano-conductive coating enhances the overall voltage withstand performance, ensuring no breakdown or aging occurs during long-term operation. The smooth and dense surface of the dust collection plate facilitates subsequent cleaning and maintenance, extending its service life. Example 4

[0037] like Figures 4-8 As shown, this embodiment provides a filter, which is composed of multiple electrostatic dust collection plates that are staggered and stacked together.

[0038] The assembly method of this filter includes the following steps: S1. Set two guide posts, the outer diameter of the guide posts is equal to the outer diameter of the mounting hole 3, and the spacing between the two guide posts is equal to the spacing between the two mounting holes 3 in the electrostatic dust collection plate. S2. Place the electrostatic precipitator plates sequentially onto the two guide posts, ensuring that the stepped bends of the electrostatic precipitator plates are all facing upwards or downwards, and that adjacent electrostatic precipitator plates face opposite directions; the number of electrostatic precipitator plates is set according to the requirements of the filter. S3. Press down to make the high-position snap-fit ​​plate 5 snap into the corresponding snap-fit ​​groove 4, thereby pressing each electrostatic dust collection plate together to form an integrated structure, and then remove it from the guide column.

[0039] Working principle: The guide posts ensure the accurate position and orientation of the electrostatic precipitator plates during assembly, allowing adjacent plates to properly engage and form a stable filter structure. During operation, the assembled filter utilizes the synergistic effect of the electrostatic precipitator plates, employing an electric field adsorption mechanism to dynamically remove charged particles from the air under low air resistance conditions, achieving highly efficient air purification.

[0040] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An electrostatic dust collection plate, characterized in that, The electrostatic dust collection electrode plate includes a substrate, characterized in that a conductive coating area is provided in the middle of the substrate, a plurality of sets of snap-fit ​​grooves are symmetrically opened on both sides of the conductive coating area, and a plurality of sets of stepped bending plates are symmetrically arranged on both sides of the conductive coating area. The positions of the stepped bending plates are staggered from the positions of the snap-fit ​​grooves, and the stepped bending plates are composed of a high snap-fit ​​plate portion on the outer side and a low isolation plate portion on the inner side.

2. The electrostatic dust collection plate as described in claim 1, characterized in that, The substrate has conductive coating areas on both sides, which are formed by applying functional nano-electronic paste to the surface of the substrate through printing or spraying.

3. The electrostatic dust collection plate as described in claim 1, characterized in that, The length of the high-position snap-fit ​​plate along the width of the substrate is equal to the length of the snap-fit ​​groove along the width of the substrate, and the height of the low-position isolation plate protruding relative to the substrate is used as the spacing value after the two adjacent electrostatic dust collection plates are assembled.

4. The electrostatic dust collection plate as described in claim 3, characterized in that, The height of the high-position snap-fit ​​plate portion of the rear electrostatic dust collection electrode plate protruding from the snap-fit ​​groove corresponding to the front electrostatic dust collection electrode plate is less than or equal to the height of the low-position isolation plate portion protruding relative to the substrate.

5. The electrostatic dust collection plate as described in claim 1, characterized in that, The substrate and conductive coating area are provided with mounting holes near both ends. When the high-position snap-fit ​​plate of the rear electrostatic dust collection electrode plate is snapped into the snap-fit ​​groove corresponding to the front electrostatic dust collection electrode plate, the mounting hole axes on the same side of the adjacent two electrostatic dust collection electrode plates coincide with each other.

6. The electrostatic dust collection plate as described in claim 1, characterized in that, The substrate and the conductive coating area are provided with a misalignment positioning hole at one end.

7. The electrostatic dust collection plate as described in claim 1, characterized in that, The conductive coating area has an electric field conduction area near one end. The area of ​​the conductive coating area other than the electric field conduction area is the electric field working area. The resistance value of the electric field conduction area is 20 to 100 times the resistance value of the electric field working area.

8. The electrostatic dust collection plate as described in claim 7, characterized in that, The electric field guiding area has an overall serpentine structure, and the electric field working area and the electric field guiding area each have blank areas to avoid the corresponding mounting holes.

9. A filter, characterized in that, The filter is composed of electrostatic dust collection plates as described in any one of claims 1-8, which are staggered and snapped together.

10. The method for assembling a filter as described in claim 9, characterized in that, Includes the following steps: S1. Set two guide posts, the outer diameter of the guide posts is equal to the outer diameter of the mounting holes, and the spacing between the two guide posts is equal to the spacing between the two mounting holes in the electrostatic precipitator plate. S2. Place the electrostatic precipitator plates sequentially onto the two guide posts, ensuring that the stepped bends of the electrostatic precipitator plates are all facing upwards or downwards, and that adjacent electrostatic precipitator plates face opposite directions; the number of electrostatic precipitator plates is set according to the requirements of the filter. S3. Press down to make the high-position snap-fit ​​plate snap into the corresponding snap-fit ​​groove, thereby pressing the electrostatic dust collection plates together to form an integrated structure, and then remove it from the guide column.

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