Electrostatic dust collection apparatus, electrostatic precipitator system, and design method for electrostatic dust collection apparatus

Abstract

The present invention relates to the technical field of electrostatic dust removal equipment, and particularly relates to an electrostatic dust collection device, an electrostatic dust removal system, and a design method for an electrostatic dust collection device. The electrostatic dust collection device includes a first metal plate, a second metal plate, a first support column, a second support column, a first positioning sleeve, and a second positioning sleeve. The first metal plate and the second metal plate are parallel to each other and alternately arranged along a first direction, and both the first support column and the second support column penetrate through the first metal plate and the second metal plate along the first direction. The first support column is electrically connected to the first metal plate, and the second support column is electrically connected to the second metal plate. The first positioning sleeve is sleeved on an outside of the first support column, two adjacent first metal plates are supported by the first positioning sleeve, the second positioning sleeve is sleeved on an outside of the second support column, and two adjacent second metal plates are supported by the second positioning sleeve. The electrostatic dust collection device provided by the present invention improves the processing accuracy of the support structure and ensures the uniformity of the spacing between two adjacent conductive plates of the electrostatic dust collection device.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present invention claims the priority to the Chinese patent application with the filling No. 2024106107186 filed with the Chinese Patent Office on May 16, 2024, and entitled "ELECTROSTATIC DUST COLLECTION DEVICE, ELECTROSTATIC DUST REMOVAL SYSTEM, AND DESIGN METHOD FOR ELECTROSTATIC DUST COLLECTION DEVICE", the contents of which are incorporated herein by reference in entirety.TECHNICAL FIELD

[0002] The present invention relates to the technical field of electrostatic dust removal equipment and particularly relates to an electrostatic dust collection device, an electrostatic dust removal system, and a design method for the electrostatic dust collection device.BACKGROUND ART

[0003] Currently, the electrostatic dust collection devices typically include multiple layers of parallel conductive plates that are parallel and arranged at intervals. The smaller the distance between two adjacent parallel conductive plates is, the higher the purification efficiency of the electrostatic dust collection device is. Current electrostatic dust collection devices generally include two forms: plastic-plate micro-electrostatic field dust collection devices and metal-plate micro-electrostatic field dust collection devices.

[0004] However, the parallel conductive plates of the current plastic-plate micro-electrostatic field dust collection devices usually adopt a structure where a conductive coating is applied to the surface of a plastic substrate. This causes the substrate to easily deform or break under changes in environment temperature and environment humidity, thus leading to deformation or breakage of the conductive plates and resulting in short-circuit arcing. This sharply reduces the purification efficiency of the electrostatic dust collection device. Moreover, the plastic-plate micro-electrostatic field dust collection devices are highly susceptible to safety hazards after a period of use.

[0005] However, the parallel conductive plates of the current metal-plate micro-electrostatic field dust collection devices typically use a structure of metal sheets. This makes it difficult to maintain a consistent distance between two adjacent parallel conductive plates due to factors such as the processing accuracy of the supporting structure for the metal sheets and the assembly accuracy of the metal sheets. Therefore, the metal-plate micro-electrostatic field dust collection device requires a sufficient safety distance between two adjacent parallel conductive plates. For example, the distance between two adjacent parallel conductive plates needs to reach 5mm to 10mm or more to avoid the occurrence of localized discharge sound caused by inconsistent spacing between the two parallel conductive plates. This greatly affects the purification efficiency of the metal-plate micro-electrostatic field dust collection device.

[0006] Furthermore, the width of the parallel conductive plates in the current metal-plate micro-electrostatic field dust collection devices is designed to be relatively large to compensate for the insufficient purification efficiency of the metal-plate micro-electrostatic field dust collection device, which is caused by the need to maintain a sufficient safety distance between two adjacent parallel conductive plates. Then, the current metal-plate micro-electrostatic field dust collection devices are usually "big and bulky", have high manufacturing costs, occupy space, and have limited application scenarios, thus making it difficult to replace HEPA filters and other purification dust removal products.SUMMARY

[0007] The objective of the present invention is to provide an electrostatic dust collection device, an electrostatic dust removal system, and a design method for an electrostatic dust collection device to solve the following technical problems existing in the prior art to a certain extent. The substrate of the plastic-plate micro-electrostatic field dust collection device is easily deformed or broken, thus leading to deformation or breakage of the conductive plates and resulting in short-circuit arcing. This sharply reduces the purification efficiency of the electrostatic dust collection device. Moreover, the plastic-plate micro-electrostatic field dust collection devices are highly susceptible to safety hazards after a period of use. The metal-plate micro-electrostatic field dust collection device makes it difficult to maintain a consistent distance between two adjacent parallel conductive plates due to factors such as the processing accuracy of the supporting structure for the metal sheets and the assembly accuracy of the metal sheets. In order to avoid the occurrence of localized discharge sound caused by inconsistent spacing, the metal-plate micro-electrostatic field dust collection device requires a sufficient safety distance between two adjacent parallel conductive plates. This greatly affects the purification efficiency of the metal-plate micro-electrostatic field dust collection device. To compensate for the insufficient purification efficiency of the metal-plate micro-electrostatic field dust collection device, which is caused by the need to maintain a sufficient safety distance between two adjacent parallel conductive plates, the width of the parallel conductive plates needs to be increased. As a result, the current metal-plate micro-electrostatic field dust collection devices are usually "big and bulky", have high manufacturing costs, occupy space, and have limited application scenarios, thus making it difficult to replace HEPA filters and other purification dust removal products.

[0008] According to a first aspect of the present invention, an electrostatic dust collection device is provided, including a dust collection main body, wherein the dust collection main body includes a first metal plate, a second metal plate, a support column part, and a positioning assembly.

[0009] The support column part includes a first support column configured for connection with a first polarity and a second support column configured for connection with a second polarity.

[0010] The first metal plate and the second metal plate are parallel to each other and alternately arranged along a first direction, and both the first support column and the second support column penetrate through the first metal plate and the second metal plate along the first direction. The first support column is electrically connected to the first metal plate, and the second support column is electrically connected to the second metal plate.

[0011] The positioning assembly includes a first positioning part and a second positioning part, wherein the first positioning part is sleeved on an outside of the first support column, two adjacent first metal plates are supported by the first positioning part, the second positioning part is sleeved on an outside of the second support column, and two adjacent second metal plates are supported by the second positioning part.

[0012] Preferably, in the first direction, a distance between adjacent first metal plate and second metal plate is 1.5mm to 2.7mm;

[0013] and / or, the dimensions of the first metal plate and the second metal plate in a third direction are both 55mm, wherein the third direction is perpendicular to the first direction.

[0014] Preferably, the device further includes a fin plate, wherein the fin plate is provided with an avoidance hole and a connection hole that penetrate through the fin plate along the first direction.

[0015] The support column part can respectively penetrate through the avoidance hole and the connection hole, and the positioning assembly can penetrate through the avoidance hole.

[0016] A diameter of the avoidance hole is greater than an outer diameter of the positioning assembly.

[0017] A diameter of the connection hole is smaller than the outer diameter of the positioning assembly, and greater than or equal to an outer diameter of the support column part.

[0018] Preferably, in the first direction, a distance between adjacent first metal plate and second metal plate is defined as w.

[0019] A difference between the diameter of the avoidance hole and the outer diameter of the positioning assembly is greater than or equal to w + 2mm.

[0020] Preferably, at least a portion of the connection holes and avoidance holes on the fin plate are arranged in an array, and in the array, any row of holes and any column of holes are arranged in an alternating manner of the avoidance holes and the connection holes.

[0021] Preferably, the fin plate extends along a second direction, and the second direction is perpendicular to the first direction.

[0022] Any row in the array extends along the second direction, and a number of rows in the array is even. The rows in the array are arranged at intervals in a third direction, wherein the third direction is perpendicular to the second direction.

[0023] A centerline of the array in the third direction coincides with the centerline of the fin plate in the third direction.

[0024] Preferably, in the third direction, and in the array, a hole pitch between two adjacent rows is defined as d, a dimension of the fin plate in the third direction is defined as D, and a total number of connection holes and avoidance holes included in the array is defined as n, where d ≥ 0.7 × D n .

[0025] Preferably, in the second direction, and in the array, a hole pitch between two adjacent columns is defined as m.

[0026] When applying a 2 Newton pressure along the first direction at a midpoint between two adjacent columns on the fin plate, a deformation amount at the midpoint of the fin plate in the first direction is defined as s.

[0027] By changing the m value and repeating tests to obtain the s value until s = 0.5w, the hole pitch between two adjacent columns in this state is obtained as m 0 .

[0028] The actual hole pitch m actual between two adjacent columns is made to ≤m 0 in the second direction and within the array.

[0029] Preferably, the fin plate is provided with an arrangement region, wherein the connection holes and the avoidance holes within the arrangement region are arranged in the array.

[0030] Both ends of the fin plate in the second direction are provided with densified regions, and a portion of the fin plate other than the densified regions is the arrangement region The densified regions are provided with at least one column of alternately arranged connection holes and avoidance holes along the third direction.

[0031] In the third direction, a hole pitch between two adjacent rows in the densified region is equal to half of the hole pitch between two adjacent rows in the arrangement region.

[0032] Preferably, both the first metal plate and the second metal plate are the fin plate, and the second metal plate is a structure of the first metal plate rotated by (1 + 2N) × 180°, where N is an integer.

[0033] Preferably, the first positioning part is a first positioning sleeve, and the second positioning part is a second positioning sleeve.

[0034] The positioning assembly further includes an adjustment part, wherein the adjustment part can be sleeved on an outside of the support column part to adjust the spacing between adjacent first metal plate and second metal plate.

[0035] Preferably, the adjustment part includes: a coarse adjustment block, which can be arranged at both ends of the dust collection main body in the first direction to compensate for a cumulative tolerance of the positioning assembly in the first direction; and an adjustment pad, which can be arranged between the first metal plate and the first positioning sleeve or between the second metal plate and the second positioning sleeve.

[0036] The coarse adjustment block and the adjustment pad both have multiple dimension specifications.

[0037] A dimension of the coarse adjustment block in the first direction is 1mm, 2mm, 3mm, 4mm, or 5mm.

[0038] A dimension of the adjustment pad in the first direction is 0.1mm, 0.2mm, 0.3mm, 0.4mm, or 0.5mm.

[0039] Preferably, the device further includes a protective frame and a control unit, wherein the protective frame is framed on the outside of the dust collection main body, the protective frame is provided with an embedding slot, the control unit is arranged in the embedding slot, and the first support column and the second support column are electrically connected to the control unit, respectively.

[0040] Preferably, the protective frame includes two cover bodies respectively arranged on both sides of the dust collection main body in the first direction.

[0041] Both ends of the support column part are respectively inserted into the two cover bodies.

[0042] Preferably, both ends of the support column part in the first direction are provided with limiting parts to define the positions of the first metal plate, the second metal plate, and the positioning assembly that penetrate through the support column part.

[0043] At least one of the two limiting parts arranged on the same support column part is in a movable connection with the support column part to adjust the pressing degree between the first metal plate and the positioning assembly and between the second metal plate and the positioning assembly that penetrate through the support column part.

[0044] Preferably, the device further includes an insulating terminal, wherein the first of the first support column and the second support column is inserted into the cover body via the insulating terminal, and the second of the first support column and the second support column is directly inserted into the cover body; and / or the embedding slot is arranged on at least one of the two cover bodies; and / or the control unit is treated by a potting sealing process; and / or the control unit includes a DC positive output terminal and a DC negative output terminal, wherein the first of the first support column and the second support column is electrically connected to the DC positive output terminal, the second of the first support column and the second support column is electrically connected to the DC negative output terminal, and the voltage between the DC positive output terminal and the DC negative output terminal is 12V to 24V.

[0045] Preferably, the insulating terminal is treated by a potting sealing process; and / or, in the first direction, a distance from the one of the first metal plate and the second metal plate, which is nearest to the cover body where the insulating terminal is located, to the insulating terminal is greater than or equal to the distance between the two adjacent first metal plates and the second metal plate.

[0046] Preferably, the cover body is provided with a convex rib extending along a second direction perpendicular to the first direction, wherein the convex rib is arranged between two adjacent support column parts.

[0047] In the first direction, a distance from the one of the first metal plate and the second metal plate, which is nearest to the cover body where the convex rib is located, to the convex rib is less than or equal to 0.8v, where v is the face wind speed between the first metal plate and the second metal plate.

[0048] Preferably, the protective frame further includes side covers arranged on both sides of the dust collection main body in the second direction perpendicular to the first direction, wherein the side cover is provided with a protective space, and at least a portion of the dust collection main body extends into the protective space.

[0049] An anti-creepage gap is arranged between the side cover and the dust collection main body.

[0050] Preferably, the side cover includes a shield plate and two connecting plates connected to each other, wherein the two connecting plates are arranged on a same side of the shield plate in the second direction and are respectively connected to both ends of the shield plate in the third direction so that the side plates form the protective space, and the third direction is perpendicular to the first direction and the second direction, respectively; and / or the side cover is connected to the cover body via the connecting plate.

[0051] Preferably, a dimension of the connecting plate in the second direction is defined as c, a minimum distance from the shield plate to the dust collection main body in the second direction is defined as z, a face wind speed between the first metal plate and the second metal plate is defined as v, and a distance between adjacent first metal plate and second metal plate in the first direction is defined as w, where c≥z+1.5v and z≥1.5w.

[0052] Preferably, between the adjacent first metal plate and second metal plate, the other portions, excluding the support column part and the positioning assembly, are hollowed structures.

[0053] According to a second aspect of the present invention, an electrostatic dust removal system is provided, including the electrostatic dust collection device described in any one of the above technical solutions, thus having all the beneficial technical effects of the electrostatic dust collection device, which will not be repeated here.

[0054] Preferably, an electrostatic discharge device is further included, wherein the electrostatic discharge device is arranged separately from the electrostatic dust collection device.

[0055] Preferably, the electrostatic discharge device is a needle discharge device, a carbon brush discharge device, or an electrode wire discharge device.

[0056] According to a third aspect of the present invention, a design method for an electrostatic dust collection device is provided, which is used to design the electrostatic dust collection device described in any one of the above technical solutions, thus having all the beneficial technical effects of the electrostatic dust collection device, which will not be repeated here.

[0057] Specifically, the steps include: determining the dimension of the fin plate of the electrostatic dust collection device, and determining the dimension of the fin plate in the second direction and the third direction; determining the positions of the holes in the arrangement region of the fin plate so that the holes in the arrangement region are arranged in an array, thus any row and any column in the arrangement region are arranged in an alternating manner of first holes and second holes; confirming the number of rows and columns of the holes in the arrangement region based on the dimension of the fin plate, and confirming the hole pitch of each row and the hole pitch of each column; designing the structure of the dust collection main body, dividing the fin plate into a first metal plate and a second metal plate, such that the second metal plate is the structure of the first metal plate rotated by (1 + 2N) × 180°, where N is an integer; enabling that the first metal plate and the second metal plate are parallel and alternately arranged along the first direction, allowing the support column part to penetrate through the first metal plate and the second metal plate along the first direction via the first hole and the second hole, and arranging the positioning assembly on the outside of the support column part to support two adjacent first metal plates or two adjacent second metal plates via the positioning assembly, so as to form the dust collection main body; determining the dimensions of the support column part, the positioning assembly, the diameter of the first hole, and the diameter of the second hole of the electrostatic dust collection device, determining the dimensions of the support column part and the positioning assembly in the first direction, and ensuring that the diameter of the first hole is greater than the outer diameter of the positioning assembly, and the diameter of the second hole is smaller than the outer diameter of the positioning assembly and greater than or equal to the outer diameter of the support column part; and designing the structure of the protective frame, and designing the structure and dimension of the protective frame that can enclose the outside of the dust collection main body according to the dimension of the dust collection main body.

[0058] Preferably, the hole pitch of each row in the array satisfies a condition: d ≥ 0.7 × D n , and the hole pitch of each column in the array satisfies a condition: m actual ≤m 0 , where D is the dimension of the fin plate in the third direction; n is the total number of the first holes and the second holes included in the array; and m 0 is the hole pitch between two adjacent columns in the arrangement region, in a case where a 2 Newton pressure is applied to a midpoint between two adjacent columns on the fin plate along the first direction, and the deformation amount at the midpoint of the fin plate in the first direction is s=0.5w.

[0059] Preferably, after the step of determining the positions of the holes in the arrangement region of the fin plate, the method further includes designing a densified region, designing at least one column of alternately arranged first holes and second holes along the third direction at both ends of the fin plate in the second direction, such that the hole pitch of each row in the densified region is half of the hole pitch of each row in the arrangement region.

[0060] The beneficial effects of the present invention compared to the prior art are as follows.

[0061] In the electrostatic dust collection device provided in the present invention, by arranging a first positioning sleeve in a sleeved manner on the outside of the first support column and arranging a second positioning sleeve in a sleeved manner on the outside of the second support column, two adjacent first metal plates are able to be supported by the first positioning sleeve, and two adjacent second metal plates are able to be supported by the second positioning sleeve. Thus, on one hand, using the first metal plate and the second metal plate as conductive plates of different polarities effectively avoids the deformation and damage of the base material in plastic-plate micro-electrostatic field dust collection devices. Additionally, the first support column penetrates the first metal plate, the second metal plate, and the first positioning sleeve, thereby fixing the positions of the first metal plate, the second metal plate, and the first positioning sleeve, with respect to a plane perpendicular to the first direction. The second support column penetrates the first metal plate, the second metal plate, and the second positioning sleeve, thereby fixing the positions of the first metal plate, the second metal plate, and the second positioning sleeve, with respect to a plane perpendicular to the first direction. On the other hand, by supporting two adjacent first metal plates with the first positioning sleeve (and two adjacent second metal plates with the second positioning sleeve), the supporting structure of the layers of the conductive plates in the electrostatic dust collection device is broken up into parts, effectively reducing the difficulty of processing the supporting structure and increasing the precision of processing the supporting structure. This ensures the uniformity of the spacing between two adjacent conductive plates in the electrostatic dust collection device, saves the space needed for setting safety distances between two adjacent conductive plates, significantly reduces the spacing between two adjacent conductive plates of the electrostatic dust collection device, effectively improves the purification efficiency of the electrostatic dust collection device, overcomes the dilemma of sacrificing the width of conductive plates of the electrostatic dust collection device to ensure purification efficiency, effectively compresses the volume of the metal-plate micro-electrostatic field dust collection device, and improves the adaptability of the metal-plate micro-electrostatic field dust collection device.

[0062] In order to make the above objectives, features, and advantages of the present invention more obvious and easier to understand, the following better embodiments, together with the attached drawings, are described in detail as follows.BRIEF DESCRIPTION OF DRAWINGS

[0063] In order to more clearly illustrate the specific embodiments of the present invention or the technical solution in the prior art, the drawings required to be used in the description of the specific embodiment or prior art will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present invention. Those of ordinary skill in the art, without paying creative labor, may also obtain other drawings according to these drawings. FIG. 1 is a schematic diagram of an exploded structure of a dust collection main body provided by the embodiments of the present invention; FIG. 2 is a schematic diagram of a localized structure of the dust collection main body provided by the embodiments of the present invention; FIG. 3 is a top view of a structure of a static fin plate provided by the embodiments of the present invention; FIG. 4 is a schematic diagram of a distribution of a limiting torque with the fin plate provided in FIG. 3 in a state of use; FIG. 5 is a schematic diagram of a process of determining a space between columns for the fin plate provided in FIG. 3; FIG. 6 is a schematic diagram of a sectional structure obtained by sectioning the electrostatic dust collection device along a plane defined by both a first direction and a second direction, provided by the embodiments of the present invention; FIG. 7 is a schematic diagram of a partial sectional structure obtained by sectioning the electrostatic dust collection device along a plane defined by both a first direction and a third direction, provided by the embodiments of the present invention; FIG. 8 is an enlarged schematic diagram of a structure of the electrostatic dust collection device at location A provided by FIG. 7; FIG. 9 is a schematic diagram of an exploded structure of an electrostatic dust collection device provided by the embodiments of the present invention; FIG. 10 is a schematic diagram of an axonometric structure of an electrostatic dust collection device provided by the embodiments of the present invention; FIG. 11 is a schematic diagram of a structure of an electrostatic dust removal system provided by the embodiments of the present invention; FIG. 12 is a schematic diagram of a connection structure of an electrostatic dust collection unit provided by the embodiments of the present invention; FIG. 13 is a comparison diagram of a dust collection efficiency of different electrostatic dust collection devices in different humidity environments; and FIG. 14 is a flowchart of a design method for an electrostatic dust collection device provided by the embodiments of the present invention.

[0064] Reference numerals: 10- fin plate; 101- connection hole; 102- avoidance hole; 103-centerline; 104- arrangement region; 105- densified region; 106- tip notch; 11- first metal plate; 12- second metal plate; 131- first support column; 132- second support column; 14- positioning assembly; 1411- first positioning sleeve; 1412- second positioning sleeve; 142- adjustment pad; 15- limiting part; 21- cover body; 211- convex rib; 2111- protruding part; 2112- extended part; 22- side cover; 221- shield plate; 222- connecting plate; 23- insulating terminal; 24- embedding slot; 25- guide slot; 3- control unit; 31- DC positive output terminal; 32- DC negative output terminal; 41- normal operation light; 42- fault light; 5- warning device; F1- first direction; F2-second direction; F3- third direction.DETAILED DESCRIPTION OF EMBODIMENTS

[0065] A clear and complete description of the technical solutions of the present invention will be given below in connection with the drawings. Obviously, the described embodiments are a portion of the embodiments of the present invention and not all of the embodiments.

[0066] The components of the embodiments of the present invention which are generally described and shown in the drawings herein can be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention for which protection is claimed, but merely represents selected embodiments of the present invention.

[0067] Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making inventive efforts are within the scope of protection of the present invention.

[0068] In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings and are intended only to facilitate and simplify the description of the present invention, not to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore are not to be construed as limiting the present invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0069] In the description of the present invention, it is important to note that unless otherwise clearly stipulated and limited, the terms "mount", "interconnect" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; and it can be a direct connection, an indirect connection through an intermediary, or an internal communication between two components. Those of ordinary skill in the art can understand the meanings of the above terms in the present invention according to specific situations.

[0070] FIG. 1 is a schematic diagram of an exploded structure of a dust collection main body provided by the embodiments of the present invention. It should be noted that since the spacing between the first metal plate 11 and the second metal plate 12 in the physical electrostatic dust collection device is relatively small, and both the first metal plate 11 and the second metal plate 12 obstruct the support column part and the positioning assembly 14, in FIG. 1, the first metal plate 11, the second metal plate 12, and the positioning assembly 14 are moved relative to each other along the first direction F1 to clarify the relative positional relationship between the first metal plate 11, the second metal plate 12, the support column part, and the positioning assembly 14. FIG. 2 is a schematic diagram of a localized structure of the dust collection main body provided by the embodiments of the present invention. FIG. 3 is a top view schematic diagram of a structure of a static fin plate 10 provided by the embodiments of the present invention. FIG. 4 is a schematic diagram of a distribution of a limiting torque with the fin plate 10 provided in FIG. 3 in a state of use, The state of use here can be understood as the state in which the fin plate 10 is assembled as the first metal plate 11 or the second metal plate 12 in the electrostatic dust collection device. FIG. 5 is a schematic diagram of a process of determining a space between columns for the fin plate 10 provided in FIG. 3. FIG. 6 is a schematic diagram of a sectional structure obtained by sectioning the electrostatic dust collection device along a plane defined by both a first direction F1 and a second direction F2, provided by the embodiments of the present invention. FIG. 7 is a schematic diagram of a partial sectional structure obtained by sectioning the electrostatic dust collection device along a plane defined by both a first direction F1 and a third direction F3, provided by the embodiments of the present invention. FIG. 8 is an enlarged schematic diagram of a structure of the electrostatic dust collection device at location A provided by FIG. 7. FIG. 9 is a schematic diagram of an exploded structure of an electrostatic dust collection device provided by the embodiments of the present invention. FIG. 10 is a schematic diagram of an axonometric structure of an electrostatic dust collection device provided by the embodiments of the present invention. FIG. 11 is a schematic diagram of a structure of an electrostatic dust removal system provided by the embodiments of the present invention. FIG. 12 is a schematic diagram of a connection structure of an electrostatic dust collection unit provided by the embodiments of the present invention. FIG. 13 is a comparison diagram of a dust collection efficiency of different electrostatic dust collection devices in different humidity environments. FIG. 14 is a flowchart of a design method for an electrostatic dust collection device provided by the embodiments of the present invention.

[0071] An electrostatic dust collection device, an electrostatic dust removal system, and a design method for an electrostatic dust collection device according to some embodiments of the present invention are described below with reference to FIGS. 1 to 14.

[0072] Referring to FIGS. 1 to 12, the embodiments of a first aspect of the present invention provide an electrostatic dust collection device including a dust collection main body. The dust collection main body includes a first metal plate 11, a second metal plate 12, a support column part, and a positioning assembly 14, wherein the support column part includes a first support column 131 configured for connection with a first polarity and a second support column 132 configured for connection with a second polarity. The first metal plate 11 and the second metal plate 12 are parallel to each other and alternately arranged along a first direction F1, and both the first support column 131 and the second support column 132 penetrate through the first metal plate 11 and the second metal plate 12 along the first direction F1. The first support column 131 is electrically connected to the first metal plate 11, and the second support column 132 is electrically connected to the second metal plate 12. The positioning assembly 14 includes a first positioning sleeve 1411 and a second positioning sleeve 1412, wherein the first positioning sleeve 1411 is sleeved on an outside of the first support column 131, two adjacent first metal plates 11 are supported by the first positioning sleeve 1411, the second positioning sleeve 1412 is sleeved on an outside of the second support column 132, and two adjacent second metal plates 12 are supported by the second positioning sleeve 1412.

[0073] According to the electrostatic dust collection device provided in accordance with the above technical features, by arranging a first positioning sleeve 1411 in a sleeved manner on the outside of the first support column 131 and arranging a second positioning sleeve 1412 in a sleeved manner on the outside of the second support column 132, two adjacent first metal plates 11 are able to be supported by the first positioning sleeve 1411, and two adjacent second metal plates 12 are able to be supported by the second positioning sleeve 1412. Thus, on one hand, using the first metal plate 11 and the second metal plate 12 as conductive plates of different polarities effectively avoids the deformation and damage of the base material in plastic-plate micro-electrostatic field dust collection devices. Additionally, the first support column 131 penetrates the first metal plate 11, the second metal plate 12, and the first positioning sleeve 1411, thereby fixing the positions of the first metal plate 11, the second metal plate 12, and the first positioning sleeve 1411, with respect to a plane perpendicular to the first direction F1. The second support column 132 penetrates the first metal plate 11, the second metal plate 12, and the second positioning sleeve 1412, thereby fixing the positions of the first metal plate 11, the second metal plate 12, and the second positioning sleeve 1412, with respect to a plane perpendicular to the first direction F1. On the other hand, by supporting two adjacent first metal plates 11 with the first positioning sleeve 1411 (and two adjacent second metal plates 12 with the second positioning sleeve 1412), the supporting structure of the layers of the conductive plates in the electrostatic dust collection device is broken up into parts, effectively reducing the difficulty of processing the supporting structure and increasing the precision of processing the supporting structure. This ensures the uniformity of the spacing between two adjacent conductive plates in the electrostatic dust collection device, saves the space needed for setting safety distances between two adjacent conductive plates, significantly reduces the spacing between two adjacent conductive plates of the electrostatic dust collection device, effectively improves the purification efficiency of the electrostatic dust collection device, overcomes the dilemma of sacrificing the width of conductive plates of the electrostatic dust collection device to ensure purification efficiency, effectively compresses the volume of the metal-plate micro-electrostatic field dust collection device, and improves the adaptability of the metal-plate micro-electrostatic field dust collection device.

[0074] As shown in FIG. 13, the figure illustrates the purification efficiency variation curves under continuous utilization monitoring for the current plastic-plate micro-electrostatic field dust collection device (shown as the dashed line in FIG. 13), the current metal-plate micro-electrostatic field dust collection device (shown as the dash-dotted line in FIG. 13), and the electrostatic dust collection device provided by the present invention (shown as the solid line in FIG. 13). In the figure, the dotted line indicates the corresponding environmental pH value under the monitoring environment. Selecting any point on the horizontal axis of FIG. 13 to make a line perpendicular to the horizontal axis, the values of the intersections of the line with the dashed line, dash-dotted line, and solid line respectively represent the purification efficiency of the plastic-plate micro-electrostatic field dust collection device, the metal-plate micro-electrostatic field dust collection device, and the electrostatic dust collection device provided by the present invention under the same environment (i.e., the same environmental humidity and the same environmental pH value). It can be clearly seen from FIG. 13 that with the extension of use time, the purification efficiency of both the current plastic-plate micro-electrostatic field dust collection device and the current metal-plate micro-electrostatic field dust collection device shows a certain degree of attenuation. Moreover, the purification efficiency of the current metal-plate micro-electrostatic field dust collection device fluctuates significantly due to changes in environmental humidity and environmental pH value, meaning that the purification efficiency of the metal-plate micro-electrostatic field dust collection device is greatly affected by the environment. In contrast, the purification efficiency of the electrostatic dust collection device provided by the present invention remains relatively stable, is less affected by environmental changes, and does not exhibit any attenuation in the purification efficiency of the electrostatic dust collection device provided by the present invention, with the extension of use time.

[0075] As shown in FIGS. 1 to 12, F1 in the figures can be an example of the first direction mentioned above. For ease of description, two directions, perpendicular to each other and parallel to the plane of the first metal plate 11 and the second metal plate 12, are defined as the second direction F2 and the third direction F3. In other words, the plane determined by the second direction F2 and the third direction F3 is parallel to the first metal plate 11. F2 in the figures can be an example of the second direction mentioned above, and F3 in the figures can be an example of the third direction mentioned above.

[0076] In the embodiment, preferably as shown in FIGS. 3 to 6, the aforementioned electrostatic dust collection device further includes a fin plate 10, wherein the fin plate 10 is provided with an avoidance hole 102 and a connection hole 101 that penetrate through the fin plate 10 along the first direction F1. The aforementioned support column part can respectively penetrate through the avoidance hole 102 and the connection hole 101, and the aforementioned positioning assembly 14 can penetrate through the avoidance hole 102. A diameter of the avoidance hole 102 is greater than an outer diameter of the positioning assembly 14. A diameter of the connection hole 101 is smaller than the outer diameter of the positioning assembly 14, and greater than or equal to an outer diameter of the support column part. In this way, one of the support column parts having the same polarity as the fin plate 10 can be electrically connected to the fin plate 10 through the connection hole 101 and the positioning assembly 14, and one of the support column parts having a different polarity from the fin plate 10 can be isolated from the fin plate 10 through the avoidance hole 102.

[0077] Preferably, as shown in FIG. 3, the embodiment is illustrated, in which the avoidance hole 102 and the connection hole 101 are circular holes. However, this is not limited to such shapes. The shapes of the avoidance hole 102 and the connection hole 101 can be adaptively adjusted according to the shape of the support column part. For example, the avoidance hole and the connection hole can also be polygonal holes, oval holes, or irregularly shaped holes.

[0078] As shown in FIG. 1, both the first metal plate 11 and the second metal plate 12 can be the above fin plate 10. It should be noted that when the above first metal plate 11 and the second metal plate 12 are arranged alternately along the first direction F1, the connection hole 101 of the first metal plate 11 and the avoidance hole 102 of the second metal plate 12 are aligned in the first direction F1 so as to allow the first support column 131 to penetrate. Similarly, the connection hole 101 of the second metal plate 12 and the avoidance hole 102 of the first metal plate 11 are aligned in the first direction F1 so as to allow the second support column 132 to penetrate through.

[0079] Thus, taking the structure shown in FIG. 2, where the first support column 131 and the positioning assembly 14 support two adjacent first metal plates 11, as an example, on one hand, the diameter of the connection hole 101 is smaller than the outer diameter of the positioning assembly 14 and is greater than or equal to the outer diameter of the support column part. This allows the first support column 131 to smoothly penetrate the first metal plate 11 and the second metal plate 12, and the two adjacent first metal plate 11 can be supported by the first positioning sleeve 1411 (or the first positioning sleeve 1411 and the adjustment pad 142). Moreover, this provides an electrical connection between the two adjacent first metal plates 11 through the first positioning sleeve 1411 (or the first positioning sleeve 1411 and the adjustment pad 142). On the other hand, the diameter of the avoidance hole 102 is greater than the outer diameter of the positioning assembly 14. Therefore, the first support column 131 can penetrate the second metal plate 12, which is arranged between the two adjacent first metal plates 11, through the avoidance hole 102, thus preventing the second metal plate 12 from short-circuiting due to connection with the first support column 131. It should be noted that the structure where the second support column 132 and the positioning assembly 14 support the two adjacent second metal plates 12 is similar to the structure where the first support column 131 and the positioning assembly 14 support the two adjacent first metal plates 11, and thus will not be elaborated here.

[0080] Preferably, as shown in FIGS. 7 and 8, the distance between the two adjacent first metal plates 11 and the second metal plate 12 in the first direction F1 is defined as w. The difference between the diameter of the avoidance hole 102 and the outer diameter of the positioning assembly 14 is greater than or equal to w + 2mm (i.e., F ≥ w + 1mm as shown in FIGS. 7 and 8). Thus, it ensures that sufficient avoidance space is provided between the avoidance hole 102 of the first metal plate 11 and the positioning assembly 14 sleeved on the second support column 132 (or between the avoidance hole 102 of the second metal plate 12 and the positioning assembly 14 sleeved on the first support column 131), thus preventing creepage short-circuiting between the first metal plate 11 and the second support column 132 (or between the second metal plate 12 and the first support column 131).

[0081] Optionally, as shown in FIGS. 7 and 8, both the first support column 131 and the second support column 132 can be metal conduits extending in the first direction F1. On one hand, the first support column 131 and the second support column 132 are made of conductive metal, thus achieving an electrical connection between the first support column 131 and the first metal plate 11 (or between the second support column 132 and the second metal plate 12) through the direct contact between the first support column 131 and the first metal plate 11 (or between the second support column 132 and the second metal plate 12). This facilitates the assembly of the electrostatic dust collection device, and at the same time, it allows the first metal plate 11 and the second metal plate 12 to slide along the first support column 131 and the second support column 132 in the first direction F1 for position adjustment of the first metal plate 11 and the second metal plate 12. On the other hand, the first support column 131 and the second support column 132 can be hollow inside, thus allowing the threading of wires through the hollow space. This facilitates hidden wiring in the electrostatic dust collection device, thereby preventing wires from affecting the dust collection and purification efficiency of the electrostatic dust collection device.

[0082] Preferably, as shown in FIGS. 7 and 8, both ends of the above first support column 131 in the first direction F1 are provided with limiting parts 15 to define the positions of the first metal plate 11, the second metal plate 12, and the first positioning sleeve 1411 that penetrate through the first support column 131.

[0083] Preferably, at least one of the two limiting parts 15 provided at the two ends of the same first support column 131 in the first direction F1 is in a movable connection with the first support column 131 to adjust the compression degree between the first metal plate 11 and the first positioning sleeve 1411 that penetrate the first support column 131, thus achieving overall adjustment of the density of the first metal plate 11 and the second metal plate 12 that penetrate the first support column 131.

[0084] Similarly, as shown in FIGS. 7 and 8, both ends of the above second support column 132 in the first direction F1 can also be provided with limiting parts 15 to define the positions of the first metal plate 11, the second metal plate 12, and the second positioning sleeve 1412 that penetrate through the second support column 132.

[0085] Similarly, at least one of the two limiting parts 15 provided at the two ends of the same second support column 132 in the first direction F1 is in a movable connection with the second support column 132 to adjust the compression degree between the first metal plate 11 and the second positioning sleeve 1412 that penetrate the second support column 132, thus achieving overall adjustment of the density of the first metal plate 11 and the second metal plate 12 that penetrate the second support column 132.

[0086] Optionally, the above limiting parts 15 can be nuts, and the limiting part 15 can be in a threaded connection with the two ends of the first support column 131 (or the second support column 132) in the first direction F1 to facilitate position adjustment of the limiting part 15 relative to the first support column 131 or the second support column 132. Without limitation, however, the above limiting parts 15 can also be other limiting structures. For example, the above limiting parts 15 can also be limiting pins, which can adjust the compression degree between the first metal plate 11 and the first positioning sleeve 1411 and between the second metal plate 12 and the second positioning sleeve 1412 that penetrate the support column part by changing the insertion position of the limiting pins relative to the first support column 131 or the second support column 132.

[0087] Preferably, in the first direction F1, a distance between adjacent first metal plate 11 and second metal plate 12 is 1.5mm to 2.7mm to ensure the dust collection and purification efficiency of the electrostatic dust collection device. For example, the distance between the two adjacent first metal plates 11 and the second metal plate 12 can be 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, or 2.7mm.

[0088] Preferably, as shown in FIGS. 3 and 6, at least a portion of the connection holes 101 and the avoidance holes 102 on the fin plate 10 are distributed in an array, and in the array, any row of holes and any column of holes are alternately arranged as the avoidance holes 102 and the connection holes 101. Thus, taking the first metal plate 11 as the fin plate 10 as an example, the force application position where the first support column 131 supports the first metal plate 11 is the arrangement position of the connection hole 101. The arrangement position of the avoidance hole 102 in the first metal plate 11 is the hollowed structure of the first metal plate 11, which is the deformation-sensitive region of the first metal plate 11. In the present invention, by distributing the connection holes 101 and the avoidance holes 102 in an array, and arranging each row and column in the array with alternately arranged avoidance holes 102 and connection holes 101, the above force application position and deformation-sensitive region can be evenly distributed on the fin plate 10. As shown in FIG. 4, which is the schematic diagram of a distribution of a limiting torque with the fin plate 10, arranging the positions of the connection holes 101 and the avoidance holes 102 in this manner above can ensure uniformity in the distribution of the limiting torque of the fin plate 10, which in turn ensures that the fin plate 10 is not easily deformed during use. This prevents the occurrence of uneven distribution of spacing between the adjacent first metal plates 11 and the second metal plate 12, caused by the cumulative deformation of the fin plate 10 when using the electrostatic dust collection device, thus effectively solving the problem of attenuation of the dust collection and purification efficiency in the electrostatic dust collection device with the accumulation of the use time.

[0089] Preferably, as shown in FIGS. 1 to 10, the above fin plate 10 can be an elongated plate extending in the second direction F2. Correspondingly, the third direction F3 can be the width direction of the fin plate 10. Preferably, any row of the above array can extend in the second direction F2. Correspondingly, any column of the above array can extend in the third direction F3, so that the array can match the shape of the fin plate 10.

[0090] Preferably, as shown in FIG. 3, the number of rows in the above array can be an even number, with the centerline 103 of the array in the third direction F3 (i.e., the centerline 103 extending in the second direction F2 of the array) coinciding with the centerline 103 of the fin plate 10 in the third direction F3. Thus, the fin plate 10 is divided into a first part and a second part that are symmetrical to each other, bounded by a centerline 103 of the fin plate 10 in the third direction F3. The first part and the second part are respectively arranged with arrays having an equal number of rows, which are provided in correspondence about the centerline 103. In other words, for a position of the first part of the fin plate 10 at which the connection hole 101 is provided, a position of the second part symmetrical with the position about the centerline 103 is provided with the avoidance hole 102. This further improves the uniformity of the distribution of the limiting torque of the fin plate 10 in the third direction F3.

[0091] Preferably, as shown in FIGS. 3 and 6, the number of rows in the above array can be two, meaning that the first part and the second part are each provided with one row of alternately arranged connection holes 101 and avoidance holes 102. Without limitation, however, the number of rows of the array can be adaptively adjusted based on the dimension of the electrostatic dust collection device in the third direction F3.

[0092] Preferably, the dimension of the first metal plate 11 and the second metal plate 12 in the third direction F3 can be 55mm so that the dimension of the electrostatic dust collection device can match the general thickness dimension of a HEPA filter, which in turn allows the electrostatic dust collection device to effectively replace the HEPA filter. On the one hand, the adaptability of the electrostatic dust collection device is improved; on the other hand, by replacing the HEPA filter with an electrostatic dust collection device, the filter life of the equipment in which the filter is applied is effectively extended.

[0093] Preferably, as shown in FIG. 3, in the third direction F3, and in the array, a hole pitch between two adjacent rows is defined as d, a dimension of the fin plate 10 in the third direction F3 is defined as D, and a total number of connection holes 101 and avoidance holes 102 included in the array is defined as n, where d ≥ 0.7 × D n . Through multiple experiments and measurements by the applicant, it has been summarized that when the hole pitch d between two adjacent rows in the array satisfies d ≥ 0.7 × D n , it is possible to ensure a more even force rebalance of the fin plate 10 under the action of limiting torque.

[0094] It is to be noted that the present invention relates to the hole pitch which can be understood as the distance between the centers of two holes.

[0095] Preferably, taking the example of the fin plate 10 illustrated in FIG. 3 as an example, d can be equal to 0.5D, in which case the fin plate 10 is most uniformly rebalanced by the limiting torque.

[0096] Preferably, as shown in FIGS. 3 and 5, in the second direction F2, and in array, a hole pitch between two adjacent columns is defined as m. When applying a 2 Newton pressure along the first direction F1 at a midpoint between two adjacent columns on the fin plate 10, a deformation amount at the midpoint of the fin plate 10 in the first direction F1 is defined as s. By changing the m value and repeating tests to obtain the s value until s = 0.5w, the hole pitch between two adjacent columns in this state is obtained as m 0 . The actual hole pitch m actual between two adjacent columns is made to ≤m 0 in the second direction F2 and within the array. In this way, the support effect of the support column part in the second direction F2 can be ensured, and the amount of bending deformation of the fin plate 10 between the two adjacent columns can be effectively reduced. This prevents the occurrence of uneven distribution of spacing between the adjacent first metal plates 11 and the second metal plate 12, caused by the cumulative deformation amount between two adjacent columns in the fin plate 10 when using the electrostatic dust collection device. Thus, it further solves the problem of attenuation of the dust collection and purification efficiency in the electrostatic dust collection device with the accumulation of the use time.

[0097] Optionally, as shown in FIGS. 1, 3, and 6, an example of an array structure in which the above array has two rows and three columns (i.e., 2 x 3) is shown. Without limitation, however, the number of columns of the above array can be adapted based on the setting span of the electrostatic dust collection device (i.e., the dimension of the electrostatic dust collection device in the second direction F2). For example, the above array can also be 2×2, 2×4, 2×5, 2×6, ..., 2×a, 4×2, 4×4, 4×5, 4×6, ..., 4×b, ..., 2c×d (where a, b, c, d are positive integers), etc.

[0098] Preferably, as shown in FIG. 3, the two ends of the fin plate 10 in the second direction F2 can be respectively provided with densified regions 105. The portion of the fin plate 10 other than the densified region 105 can be the arrangement region 104 (e.g., the portion outlined by the dashed box in FIG. 3 can be an example of the arrangement region 104). In the arrangement region 104, the connection holes 101 and the avoidance holes 102 can be distributed in the above array. The densified region 105 is provided with at least one column of densified hole column, wherein the densified hole column is provided with alternating connection holes 101 and avoidance holes 102 along the third direction F3. In the third direction F3, a hole pitch between two adjacent rows in the densified hole column is equal to half of the hole pitch between two adjacent rows in the arrangement region 104. By densely arranging connection holes 101 and avoidance holes 102 in the densified region 105, the density of arrangement of the support column parts of the dust collection main body within the densified region 105 is effectively increased, thereby enhancing the connection stability of the dust collection main body at both ends in the second direction F2. This effectively reduces the likelihood of deformation of the fin plate 10 due to vibration and collision at the end portions of the dust collection main body.

[0099] Preferably, as shown in FIG. 3, the densified region 105 at one end of the fin plate 10 in the second direction F2 can be provided with one column of the above densified hole column. In the second direction F2, the distance between the densified hole column and the above array can be equal to the spacing between adjacent columns of the above array.

[0100] As shown in FIG. 3, the structure of the fin plate 10 will be detailed using an example of an array structure with two rows arranged in the arrangement region 104. Correspondingly, the densified hole column includes two avoidance holes 102 and two connection holes 101.

[0101] Preferably, as shown in FIG. 3, the edge of one of the two avoidance holes 102 (defined as an open hole) in the densified hole column, which is close to the edge of the fin plate 10 in the third direction F3, can be formed open to prevent issues of insufficient space for the arrangement of the densified hole column.

[0102] Preferably, as shown in FIG. 3, in a column of the array nearest to the open hole, the avoidance hole 102 and the open hole are respectively arranged on both sides of the centerline 103 in the third direction F3. Thus, in the column of the array nearest to the open hole, both the connection hole 101 and the open hole are on the same side of the centerline 103, thus allowing the supporting torque of the connection hole 101 in the column of the array nearest to the open hole to effectively compensate for the warping deformation of the cantilever beam structure formed at the open hole. This further enhances the uniformity of the force rebalance of the fin plate 10.

[0103] Preferably, as shown in FIG. 3, relative to the densified hole column, the portion of the fin plate 10 away from the side of the arrangement region 104, in a direction pointing from the end near the arrangement region 104 to the other end, gradually shortens in dimension in the third direction F3. On the one hand, it facilitates guiding the assembly of the fin plate 10 with the side cover 22 described below; on the other hand, it facilitates the formation of an anti-creepage gap between the side cover 22 and the dust collection main body.

[0104] Preferably, as shown in FIG. 3, both ends of the fin plate 10 in the second direction F2 are provided with tip notches 106 to prevent discharge at the tip of the fin.

[0105] Preferably, as shown in FIG. 1, the above second metal plate 12 can be a structure of the first metal plate 11 rotated by (1 + 2N) × 180°, where N is an integer. In this way, when the above first metal plate 11 and the second metal plate 12 are arranged alternately along the first direction F1, the connection hole 101 of the first metal plate 11 and the avoidance hole 102 of the second metal plate 12 can be aligned in the first direction F1. The connection hole 101 of the second metal plate 12 and the avoidance hole 102 of the first metal plate 11 can be aligned in the first direction F1.

[0106] Preferably, as shown in FIG. 1 and FIG. 2, between the adjacent first metal plate 11 and the second metal plate 12, the other portions, excluding the support column part and the positioning assembly 14, are hollowed structures. In other words, no physical medium is provided between the first metal plate 11 and the second metal plate 12, which allows the electrostatic dust collection device to maintain high efficiency in high-humidity environments.

[0107] In the embodiment, preferably as shown in FIG. 1 and FIG. 2, the above first positioning part can be a first positioning sleeve 1411, and the second positioning part can be a second positioning sleeve 1412. In other words, both the first positioning part and the second positioning part are cylindrical in shape, which effectively increases the stability of the support provided by the first positioning sleeve 1411 and the second positioning sleeve 1412. Additionally, it effectively increases the contact area between the first positioning sleeve 1411, the first support column 131, and the first metal plate 11 (and the contact area between the second positioning sleeve 1412, the second support column 132, and the second metal plate 12), thus improving the stability of the electrical connection.

[0108] Preferably, the positioning assembly can further include an adjustment part, wherein the adjustment part can be sleeved on an outside of the support column part to adjust the spacing between adjacent first metal plate and second metal plate, thus improving the precision of the spacing between the first metal plate and the second metal plate.

[0109] Preferably, the above adjustment part can include a coarse adjustment block, wherein the coarse adjustment block can be arranged at both ends of the dust collection main body in the first direction to compensate for a cumulative tolerance of the positioning assembly in the first direction. Thus, when the cumulative tolerance exceeds the range in which the above limiting part 15 can be adjusted, the coarse adjustment block can be sleeved on both ends of the support column part in the first direction to further compensate for the cumulative tolerance of all first positioning sleeves 1411 and second positioning sleeves 1412 sleeved on the same support column part.

[0110] Preferably, the coarse adjustment block can have multiple dimension specifications, wherein the dimension specifications can be understood as the dimension of the coarse adjustment block in the first direction F1. For example, the dimension of the coarse adjustment block in the first direction F1 can be 1mm, 2mm, 3mm, 4mm, or 5mm to compensate for different cumulative tolerances and improve the adaptability of the coarse adjustment block.

[0111] Optionally, the above coarse adjustment block can be similar in shape to the first positioning sleeve 1411 and the second positioning sleeve 1412 above, both of which are in the shape of a cylindrical tube.

[0112] Preferably, as shown in FIG. 2, the above positioning assembly 14 can also include an adjustment pad 142, wherein the adjustment pad 142 can be sleeved on the outside of the support column part. The adjustment pad 142 can be arranged between the first metal plate 11 and the first positioning sleeve 1411 or between the second metal plate 12 and the second positioning sleeve 1412 to fine-tune the local unevenness or insufficient local gaps of the fin plate 10 by adding an adjustment pad 142. Thus, it further improves the distribution accuracy of the spacing between the first metal plate 11 and the second metal plate 12. The adjustment pad 142 can effectively compensate for the machining errors of the first positioning sleeve 1411 or the second positioning sleeve 1412 of the electrostatic dust collection device in the first direction F1.

[0113] Preferably, as shown in FIG. 2, the above adjustment pad 142 can be a snap ring to facilitate the mounting of the adjustment pad 142. After the dust collection main body is assembled, the manufacturer can adjust the distribution accuracy of the spacing between the first metal plate 11 and the second metal plate 12 by arranging the adjustment pad 142. Optionally, the outer diameter of the above snap ring can be equal to the outer diameter of the above first positioning sleeve 1411 and the second positioning sleeve 1412.

[0114] Preferably, as shown in FIG. 2, the figure shows multiple dimension specifications of the above adjustment pad 142, wherein the dimension specifications can be understood as the dimension of the adjustment pad 142 in the first direction F1. For example, the dimension of the adjustment pad 142 in the first direction F1 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, or 0.5mm to compensate for different machining errors and improve the adaptability of the adjustment pad 142.

[0115] In the embodiment, preferably as shown in FIG. 6 to FIG. 10, the above electrostatic dust collection device can also include a protective frame. The protective frame can be arranged outside the dust collection main body to protect the dust collection main body, thereby reducing the probability of deformation and collisions of the first metal plate 11 and / or the second metal plate 12.

[0116] Preferably, as shown in FIG. 9 and FIG. 10, the above electrostatic dust collection device can also include a control unit 3. Correspondingly, the above protective frame can be provided with an embedding slot 24, and the control unit 3 can be arranged in the embedding slot 24. The first support column 131 and the second support column 132 are electrically connected to the control unit 3, respectively. In this way, by integrating the control unit of the electrostatic dust collection device into the protective frame, the neatness of the electrostatic dust collection device can be effectively improved.

[0117] Preferably, the above control unit 3 can be treated by a potting sealing process to effectively improve the waterproofness of the control unit 3, thus enabling the electrostatic dust collection device to be washable. The potting sealing process above can be an epoxy potting process, which is a prior art in the field and will not be elaborated herein.

[0118] Optionally, as shown in FIG. 10, the above control unit 3 can be a PCB board. Preferably, as shown in FIG. 10, the above PCB board can be covered at the slot opening of the embedding slot 24.

[0119] Preferably, the control unit 3 can have an output warning function. When there is an abnormal current output (e.g., a short circuit or open circuit) in the electrostatic dust collection device, the control unit 3 can send an alarm signal. It should be noted that the output warning function is prior art in the field of PCB boards and will not be elaborated here.

[0120] Preferably, the electrostatic dust collection device can also include an alarm unit to notify the user to promptly detect any abnormalities in the electrostatic dust collection device when the control unit 3 sends an alarm signal.

[0121] Preferably, as shown in FIG. 12, the alarm unit can include a normal operation light 41 and a fault light 42 arranged on the protective frame, wherein the normal operation light 41 and the fault light 42 communicate with the control unit 3, respectively. Specifically, when the electrostatic dust collection device is in normal working condition, the normal operation light 41 is constantly on. Once the control unit 3 sends an alarm signal, the normal operation light 41 turns off, and the fault light 42 lights up. This allows the user to promptly detect any abnormalities in the electrostatic dust collection device.

[0122] Preferably, as shown in FIG. 9 and FIG. 10, the control unit 3 can include a DC positive output terminal 31 and a DC negative output terminal 32. The first of the first support column 131 and the second support column 132 can be electrically connected to the DC positive output terminal 31, and the second of the above first support column 131 and the second support column 132 can be electrically connected to the DC negative output terminal 32.

[0123] Preferably, as shown in FIG. 9 and FIG. 10, at least a portion of the above DC positive output terminals 31 and DC negative output terminals 32 can be arranged on the surface of the cover body 21 to facilitate the connection of multiple electrostatic dust collection devices.

[0124] Preferably, the above DC positive output terminal 31 and the DC negative output terminal 32 are processed using lead-free tin spraying technology to increase the area of the DC positive output terminal 31 and the DC negative output terminal 32. This enables the control unit 3 to support simultaneous electrical connections with multiple first support columns 131 and multiple second support columns 132.

[0125] Preferably, the voltage between the DC positive output terminal 31 and the DC negative output terminal 32 can be 12V to 24V. The structure of the above dust collection main body can significantly reduce the gap between the two adjacent first metal plates 11 and the second metal plate 12. This ensures that the voltage between the first metal plate 11 and the second metal plates 12 is between 12V to 24V. Therefore, it meets the dust collection requirements of the electrostatic dust collection device and effectively reduces the energy consumption of the electrostatic dust collection device, thus allowing existing 12V to 24V low-voltage DC power supplies to meet the energy needs of the electrostatic dust collection device. Further, it facilitates the integration of the electrostatic dust collection device.

[0126] Optionally, though not shown in the figure, the electrostatic dust collection device can also include a DC power supply, wherein the DC power supply can be hidden within the embedding slot 24 to achieve the integration of the power supply of the electrostatic dust collection device.

[0127] In the embodiment, preferably as shown in FIG. 7 to FIG. 10, the protective frame includes two cover bodies 21, each arranged on either side of the dust collection main body in the first direction F1. Both ends of the support column part are respectively inserted into the two cover bodies 21.

[0128] Preferably, as shown in FIG. 9 and FIG. 10, the above embedding slot 24 can be arranged in at least one of the two cover bodies 21 to facilitate the electrical connection between the control unit 3 and the first support column 131 and the second support column 132.

[0129] Optionally, as shown in FIG. 7 to FIG. 10, the above cover body 21 can be box-shaped. In other words, the cover body 21 forms a hollow space inside, thus facilitating the arrangement of the embedding slot 24 on one hand and the insertion of the first support column 131 and the second support column 132 on the other hand.

[0130] Preferably, as shown in FIG. 9, the positions on the cover body 21 corresponding to the first support column 131 and the second support column 132 of the dust collection main body can each be provided with insertion holes extending in the first direction F1, which are configured for being inserted by the first support column 131 and the second support column 132.

[0131] Preferably, as shown in FIG. 7 to FIG. 10, the above electrostatic dust collection device can also include an insulating terminal 23. Optionally, as shown in FIG. 7, the above first support column 131 can be directly inserted into the cover body 21, and the above second support column 132 can be inserted into the above cover body 21 via the insulating terminal 23, thus effectively preventing short circuits between the first support column 131 and the second support column 132 through the cover body 21. Optionally, though not shown in the figure, the above second support column can be directly inserted into the above cover body, and the above first support column can be inserted into the above cover body via the above insulating terminal.

[0132] Preferably, the insulating terminal 23 can be treated with a potting sealing process. Here, the insulating terminal 23 is treated by a potting sealing process, which can be understood as a potting sealing process conducted between the insulating terminal 23 and the cover body 21, and between the insulating terminal 23 and the first support column 131 or the second support column 132. This improves the waterproofness of the electrostatic dust collection device and enables the electrostatic dust collection device to be washable, thus facilitating the cleaning and reuse of the electrostatic dust collection device.

[0133] Preferably, as shown in FIG. 7 and FIG. 8, a portion of the above insulating terminal 23 can extend into the insertion hole in the first direction F1, and another portion of the insulating terminal 23 is snapped outside the insertion hole, thus achieving the limitation of the first terminal in the first direction F1 and ensuring the precision of the insertion of the second support column 132.

[0134] Preferably, taking the example shown in FIG. 7 and FIG. 8, in the first direction F1, the distance from the first metal plate 11 nearest to the cover body 21 in which the insulating terminal 23 is located to the insulating terminal 23 (i.e., the value of K illustrated in the figure) is greater than or equal to the distance between adjacent first metal plate 11 and second metal plate 12 (i.e., the value of w illustrated in the figure). In this way, this effectively ensures a safe distance between the cover body 21 and the first metal plate 11, thereby effectively preventing creepage between the cover body 21 and the first metal plate 11 / second metal plate 12.

[0135] It should be noted that the above K value represents the distance, along the first direction F1, from either the first metal plate 11 or second metal plate 12, whichever is nearest to the cover body 21 where the insulating terminal 23 is located, to the insulating terminal 23. In other words, although not shown in the figure, of the first metal plate and the second metal plate in the first direction, if the one nearest to the cover body 21 in which the insulating terminal 23 is located is the second metal plate, the K value is the distance from the second metal plate nearest to the cover body where the insulating terminal is located to the insulating terminal.

[0136] Preferably, as shown in FIG. 7 to FIG. 9, the above cover body 21 is provided with a convex rib 211 extending in the second direction F2. The convex rib 211 is arranged between two adjacent support column parts. In other words, the convex rib 211 is provided on both sides of the support column parts (including the first support column 131 and the second support column 132) provided in the same row of the above array. This effectively increases the creepage distance between the connection points of two adjacent rows of support column parts on the cover body 21, thus ensuring the electrical connection safety of the cover body 21. In other words, as shown in FIG. 9, by arranging above multiple convex ribs 211 at intervals along the third direction F3 on the side of the cover body 21 facing the dust collection main body, a groove extending in the second direction F2 is formed between two adjacent convex ribs 211. The end portion of the above support column part then extends into the groove and is inserted into the above cover body 21, thus ensuring the stability of insertion and the safety of the electrical connection of the cover body 21 to the support column part.

[0137] Preferably, as shown in FIG. 7 and FIG. 8, in the first direction F1, the distance (i.e., the value of E illustrated in the figure) from the first metal plate 11 nearest to the cover body 21 in which the convex rib 211 is located to the convex rib 211 is less than or equal to 0.8v, wherein v is the face wind speed between the first metal plate 11 and the second metal plate 12. It should be noted that the face wind speed between the first metal plate 11 and the second metal plate 12 can be understood as the average air speed in the section (i.e., the plane determined by the first direction F1 and the second direction F2) perpendicular to the surfaces of the first metal plate 11 and the second metal plate 12 when the electrostatic dust collection device is in use. This can effectively reduce the outflow of airflow to be purified through the gap between the cover body 21 and the first metal plate 11 nearest to the cover body 21 in which the convex rib 211 is located, meaning that the airflow to be purified is not purified by the electric field. Thus, it effectively reduces the impact of the gap between the cover body 21 and the first metal plate 11, which is nearest to the cover body 21 where the convex rib 211 is located, on the purification efficiency of the electrostatic dust collection device.

[0138] It should be noted that the above E value represents the distance, along the first direction F1, from either the first metal plate 11 or second metal plate 12, whichever is nearest to the cover body 21 where the convex rib 211 is located, to the convex rib 211. In other words, although not shown in the figure, of the first metal plate and the second metal plate in first direction, if the one nearest to the cover body 21 in which the insulating terminal 23 is located is the second metal plate, the E value is the distance from the second metal plate nearest to the cover body where the convex rib is located to the convex rib.

[0139] Preferably, as shown in FIG. 7 and FIG. 8, the above convex rib 211 can include a protruding part 2111. The convex rib 211 is fixedly connected to the cover body 21 via the protruding part 2111. The protruding part 2111 can be plate-shaped. The protruding part 2111 can be parallel to the plane defined by both the first direction F1 and the second direction F2, thus forming the above groove extending in the second direction F2.

[0140] Preferably, as shown in FIG. 7 and FIG. 8, the above convex rib 211 can include an extended part 2112. The extended part 2112 is fixedly arranged at the end of the protruding part 2111 opposite the cover body 21. The extended part 2112 can be parallel to the plane defined by both the second direction F2 and the third direction F3. The dimension of the extended part 2112 in the third direction F3 exceeds the dimension of the protruding part 2111 in the third direction F3, thus further extending the creepage distance between the connection points of two adjacent rows of support column parts on the cover body 21, and ensuring the electrical connection safety of the cover body 21.

[0141] It should be noted that the convex rib 211 can include a middle convex rib and an edge convex rib. The middle convex rib can be arranged between the support column parts of two adjacent rows. The extended part 2112 of the middle convex rib can extend towards both sides of the protruding part 2111 in the third direction F3, thus extending the creepage distance on both sides of the middle convex rib simultaneously. The edge convex rib can be arranged on both sides of the dust collection main body in the third direction F3. The extended part 2112 of the edge convex rib can extend from the protruding part 2111 towards the side where the dust collection main body is located in the third direction F3, thus reducing the dimension of the cover body 21 in the third direction F3 and improving the space utilization of the electrostatic dust collection device.

[0142] Optionally, as shown in FIG. 9 and FIG. 10, the above electrostatic dust collection device can also include a guide slot 25. The guide slot 25 can be arranged on the above cover body 21 and communicate with the hollow space of the above cover body 21, so that the liquid flowing into the cover body 21 can be discharged in time via the guide slot 25 during the water washing process of the electrostatic dust collection device. This improves the electrical safety of the electrostatic dust collection device.

[0143] In the embodiment, preferably as shown in FIG. 6, FIG. 9, and FIG. 10, the above protective frame can also include side covers 22 arranged on both sides of the dust collection main body in the second direction F2. Specifically, the side cover 22 is provided with a protective space, and at least a portion of the dust collection main body extends into the protective space to protect both ends of the dust collection main body in the second direction F2.

[0144] Preferably, as shown in FIG. 6, an anti-creepage gap can be provided between the above side cover 22 and the dust collection main body. In other words, the side cover 22 does not contact the dust collection main body, thus effectively preventing dust accumulation inside the side cover 22, which could lead to creepage between two adjacent first metal plates 11 and the second metal plate 12 via the side plate.

[0145] Preferably, as shown in FIG. 6, the side cover 22 includes a shield plate 221 and two connecting plates 222 connected to each other, wherein the two connecting plates 222 are arranged on a same side of the shield plate 221 in the second direction F2 and are respectively connected to both ends of the shield plate 221 in the third direction F3 so that the side plates form the above protective space.

[0146] Preferably, as shown in FIG. 6, a dimension of the connecting plate 222 in the second direction F2 is defined as c, i.e., the dimension of the protective space in the second direction F2. A minimum distance from the shield plate 221 to the dust collection main body in the second direction F2 is defined as z, a face wind speed between the first metal plate 11 and the second metal plate 12 is defined as v, and a distance between adjacent first metal plate 11 and second metal plate 12 in the first direction F1 is defined as w, where c ≥ z + 1.5v, and z ≥ 1.5w. This ensures, on the one hand, that the dust collection main body can extend into the above protective space and, on the other hand, that the anti-creepage gap between the side covers 22 and the dust collection main body meets the safety distance.

[0147] Preferably, as shown in FIG. 9 and FIG. 10, the above side covers 22 are connected to the cover bodies 21 via the above connecting plates 222, thus forming the above protective frame.

[0148] Referring to FIG. 11 and FIG. 12, an electrostatic dust removal system is further provided in the embodiments of the second aspect of the present invention, including the electrostatic dust collection device described in any one of the above embodiments, thus having all the beneficial technical effects of the electrostatic dust collection device, which will not be repeated here.

[0149] Preferably, as shown in FIG. 12, the above electrostatic dust removal system can include at least one electrostatic dust collection unit. The electrostatic dust collection unit can include multiple electrostatic dust collection devices above, wherein the multiple electrostatic dust collection devices can be connected in series or parallel via their respective DC positive output terminals 31 and DC negative output terminals 32 to enable the multiple electrostatic dust collection devices to work together.

[0150] Preferably, as shown in FIG. 12, the above electrostatic dust collection unit can also include a warning device 5. The warning device 5 is communicatively connected to each electrostatic dust collection device in the electrostatic dust removal system. If the control unit 3 of one or more of the electrostatic dust collection devices in the electrostatic dust collection unit sends an alarm signal, the warning device 5 will issue an alarm, allowing the user to quickly identify the faulty electrostatic dust collection unit via the warning device 5. By individually checking the fault lights 42 of the electrostatic dust collection devices within the electrostatic dust collection unit, the faulty electrostatic dust collection device can be quickly located.

[0151] Preferably, the electrostatic dust removal system can also include an electrostatic discharge device, wherein the electrostatic discharge device can be arranged separately from the electrostatic dust collection device. In this way, on the one hand, it further reduces the space occupied by the electrostatic dust collection device, allowing exterior dimensions of the electrostatic dust collection devices to further approach the standard dimensions of HEPA filters, thus improving the adaptability of the electrostatic dust collection device. On the other hand, separately arranging the electrostatic discharge device and the electrostatic dust collection device allows for more flexible mounting methods for the electrostatic dust removal system. FIG. 11 shows four different mounting methods for the electrostatic dust removal system. For instance, in FIG. 11(1), the electrostatic discharge device and the electrostatic dust collection device of the above electrostatic dust removal system are arranged separately, which can allow the electrostatic dust collection device to be suitable for long air ducts. Specifically, the electrostatic discharge device and the electrostatic dust collection device can be respectively arranged at each end of the long air duct. For example, in FIG. 11(2), separately arranging the electrostatic discharge device and the electrostatic dust collection device of the above electrostatic dust removal system can make the electrostatic discharge device and the electrostatic dust collection device have different external dimensions. Therefore, this allows the electrostatic discharge device and the electrostatic dust collection device to fit the dimensions of different positions within a tapered air duct. Furthermore, in FIG. 11(3), separately arranging the electrostatic discharge device and the electrostatic dust collection device of the above electrostatic dust removal system can allow the electrostatic dust removal device to fit complex air duct pipes (air ducts for large central air conditioners). The electrostatic discharge device and the electrostatic dust collection device can be arranged at the inlet and outlet of the complex air duct pipe, respectively. Additionally, as shown in FIG. 11(4), the electrostatic discharge device and the electrostatic dust collection device can also be arranged side by side. When cleaning is required, the electrostatic discharge device and the electrostatic dust collection device can be detached and cleaned separately.

[0152] Preferably, the above electrostatic discharge device can be a needle discharge device, a carbon brush discharge device, or an electrode wire discharge device; for example, an ion generator described in Chinese patent document CN117767118A.

[0153] Referring to FIG. 14, a design method for an electrostatic dust collection device is provided in the embodiments of the third aspect of the present invention, which is used to design the electrostatic dust collection device described in any one of the above embodiments, thus having all the beneficial technical effects of the electrostatic dust collection device, which will not be repeated here. The method includes the following steps.

[0154] S01: determining the dimension of the fin plate 10, comprising determining the dimension of the fin plate 10 in the second direction F2 and the third direction F3. It should be noted that the dimension of the fin plate 10 in the second direction F2 and the third direction F3 can be designed based on the dimension of the electrostatic dust collection device.

[0155] S02: determining the positions of the holes in the arrangement region 104 of the fin plate so that the holes in the arrangement region 104 are arranged in an array, thus any row and any column in the arrangement region 104 are arranged in an alternating manner of first holes and second holes; confirming the number of rows and columns of the holes in the arrangement region based on the dimension of the fin plate 10; and confirming the hole pitch of each row and the hole pitch of each column.

[0156] Optionally, the above first holes can be the above avoidance holes 102, and the above second holes can be the above connection holes 101.

[0157] Preferably, the hole pitch of each row of the array satisfies a condition: d ≥ 0.7 × D n , where D is the dimension of the fin plate 10 in the third direction F3, and n is the total number of connection holes 101 and avoidance holes 102 comprised in the array.

[0158] Preferably, the hole pitch of each column of the array satisfies a condition: m actual ≤m 0 , where m 0 is the hole pitch between two adjacent columns in the arrangement region 104, in a case where a 2 Newton pressure is applied to a midpoint between two adjacent columns on the fin plate 10 along the first direction F1, and the deformation amount at the midpoint of the fin plate 10 in the first direction F1 is s=0.5w.

[0159] S021: designing a densified region 105, comprising designing at least one column of alternately arranged connection holes 101 and avoidance holes 102 along the third direction F3 at both ends of the fin plate 10 in the second direction F2, such that the hole pitch of each row in the densified region 105 is half of the hole pitch of each row in the arrangement region 104.

[0160] S03: designing the structure of the dust collection main body, comprising dividing the fin plate into a first metal plate 11 and a second metal plate 12, such that the second metal plate 12 is the structure of the first metal plate 11 rotated by (1 + 2N) × 180°, where N is an integer; enabling that the first metal plate 11 and the second metal plate 12 are parallel and alternately arranged along the first direction F1, allowing the support column part to penetrate through the first metal plate 11 and the second metal plate 12 along the first direction via the avoidance hole 102 and the connection hole 101, and arranging the positioning assembly 14 on the outside of the support column part to support two adjacent first metal plates 11 or two adjacent second metal plates 12 via the positioning assembly 14, so as to form the dust collection main body.

[0161] S04: determining the dimensions of the support column part, the positioning assembly 14, the diameter of the connection hole 101, and the diameter of the avoidance hole 102 of the electrostatic dust collection device, determining the dimensions of the support column part and the positioning assembly 14 in the first direction F1, and ensuring that the diameter of the avoidance hole 102 is greater than the outer diameter of the positioning assembly 14, and the diameter of the connection hole 101 is smaller than the outer diameter of the positioning assembly 14 and greater than or equal to the outer diameter of the support column part.

[0162] Optionally, the design method for an electrostatic dust collection device can also include the following step. S041: determining the spacing between the plates, ensuring that in the first direction F1, the distance w between two adjacent first metal plates 11 and the second metal plate 12 is 1.5mm to 2.7mm, and converting the distance into the dimension of the first positioning sleeve 1411 and the second positioning sleeve 1412 in the first direction F1. Specifically, the first positioning sleeve 1411 and the second positioning sleeve 1412 both have a dimension of 2w in the first direction F1.

[0163] Preferably, the design method for an electrostatic dust collection device can also include S042, designing the adjustment pad 142, assembling the dust collection main body, and selecting the dimension of the adjustment pad 142 and determining the position of arranging the adjustment pad 142 based on the cumulative tolerance between the first positioning sleeve 1411 and the first support column 131, and between the second positioning sleeve 1412 and the second support column 132. This ensures, on one hand, the uniformity of the plate spacing distribution at any position between adjacent first metal plates 11 and second metal plates 12, meaning that the plate spacing is equal at all positions between the same plate layer. On the other hand, it ensures that the distance between each adjacent first metal plate 11 and second metal plate 12 is equal.

[0164] S05: designing the structure of the protective frame, and designing the structure and dimension of the protective frame that can enclose the outside of the dust collection main body according to the dimension of the dust collection main body.

[0165] Preferably, the design method for an electrostatic dust collection device can also include S051, designing the structure of the cover body 21 based on the dimension of the dust collection main body, arranging the socket structure of the cover body 21, and determining the dimensions of the convex rib 211 and the insulating terminal 23.

[0166] Preferably, it is possible that in the first direction F1, a distance (i.e., the value of K shown in FIG. 8) from one of the first metal plate 11 or second metal plate 12, which is nearest to the cover body 21 where the insulating terminal 23 is located, to the insulating terminal 23 is greater than or equal to the distance (i.e., the value of w shown in FIG. 8) between two adjacent first metal plates 11 and the second metal plate 12. In this way, this effectively ensures a safe distance between the cover body 21 and the first metal plate 11, thereby effectively preventing creepage between the cover body 21 and the first metal plate 11 / second metal plate 12.

[0167] Preferably, it is possible that in the first direction F1, a distance (i.e., the value of E shown in FIG. 8) from the one of the first metal plate 11 and the second metal plate 12, which is nearest to the cover body 21 where the convex rib 211 is located, to the convex rib 211 is less than or equal to 0.8v, where v is the face wind speed between the first metal plate 11 and the second metal plate 12. This can effectively reduce the outflow of airflow to be purified through the gap between the cover body 21 and the first metal plate 11 nearest to the cover body 21 in which the convex rib 211 is located, meaning that the airflow to be purified is not purified by the electric field. Thus, it effectively reduces the impact of the gap between the cover body 21 and the first metal plate 11, which is nearest to the cover body 21 where the convex rib 211 is located, on the purification efficiency of the electrostatic dust collection device.

[0168] Preferably, the design method for an electrostatic dust collection device can also include S052, designing the structure of the side cover 22, allowing the dust collection main body to extend into the protective space of the side cover 22, and providing an anti-creepage gap between the side cover 22 and the dust collection main body.

[0169] Preferably, the dimensions meet a condition: c≥z+1.5v and z≥1.5w, where, as shown in FIG. 6, c is the dimension of the above protective space in the second direction F2, z is the minimum distance between the shield plate 221 and the dust collection main body in the second direction F2, v is the surface wind speed between the first metal plate 11 and the second metal plate 12, and w is the distance between adjacent first metal plate 11 and second metal plate 12 in the first direction F1.

[0170] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not intended to be a limitation thereof. Notwithstanding the detailed description of the present invention with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that one may still modify the technical solution described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features therein. These modifications or substitutions do not depart the essence of the corresponding technical solution from the scope of the technical solution of the embodiments of the present invention.

Claims

1. An electrostatic dust collection device, <b>characterized by comprising a dust collection main body, wherein the dust collection main body comprises a first metal plate, a second metal plate, a support column part, and a positioning assembly, wherein the support column part comprises a first support column configured for connection with a first polarity and a second support column configured for connection with a second polarity; the first metal plate and the second metal plate are parallel to each other and alternately arranged along a first direction, and both the first support column and the second support column penetrate through the first metal plate and the second metal plate along the first direction; the first support column is electrically connected to the first metal plate, and the second support column is electrically connected to the second metal plate; and the positioning assembly comprises a first positioning part and a second positioning part, wherein the first positioning part is sleeved on an outside of the first support column, two adjacent first metal plates are supported by the first positioning part, the second positioning part is sleeved on an outside of the second support column, and two adjacent second metal plates are supported by the second positioning part.

2. The electrostatic dust collection device according to claim 1, wherein in the first direction, a distance between adjacent first metal plate and second metal plate is 1.5mm to 2.7mm; and / or, dimensions of the first metal plate and the second metal plate in a third direction are both 55mm, wherein the third direction is perpendicular to the first direction.

3. The electrostatic dust collection device according to claim 1, further comprising a fin plate, wherein the fin plate is provided with an avoidance hole and a connection hole that penetrate through the fin plate along the first direction; the support column part can respectively penetrate through the avoidance hole and the connection hole, and the positioning assembly can penetrate through the avoidance hole; a diameter of the avoidance hole is greater than an outer diameter of the positioning assembly; and a diameter of the connection hole is smaller than the outer diameter of the positioning assembly, and greater than or equal to an outer diameter of the support column part.

4. The electrostatic dust collection device according to claim 3, wherein in the first direction, a distance between adjacent first metal plate and second metal plate is w; and a difference between the diameter of the avoidance hole and the outer diameter of the positioning assembly is greater than or equal to w + 2mm.

5. The electrostatic dust collection device according to claim 4, wherein at least a portion of connection holes and avoidance holes on the fin plate are arranged in an array, and in the array, any row of holes and any column of holes are arranged in an alternating manner of the avoidance holes and the connection holes.

6. The electrostatic dust collection device according to claim 5, wherein the fin plate extends along a second direction, and the second direction is perpendicular to the first direction; any row in the array extends along the second direction, and the number of rows in the array are even; and the rows in the array are arranged at intervals in a third direction, wherein the third direction is perpendicular to the second direction; and a centerline of the array in the third direction coincides with a centerline of the fin plate in the third direction.

7. The electrostatic dust collection device according to claim 6, wherein in the third direction, and in the array, a hole pitch between two adjacent rows is defined as d, a dimension of the fin plate in the third direction is defined as D, and a total number of connection holes and avoidance holes comprised in the array is defined as n, where d ≥ 0.7 × D n .

8. The electrostatic dust collection device according to claim 6, wherein in the second direction, and in the array, a hole pitch between two adjacent columns is defined as m; when applying a 2 Newton pressure along the first direction at a midpoint between two adjacent columns on the fin plate, a deformation amount at the midpoint of the fin plate in the first direction is defined as s; by changing the m value and repeating tests to obtain the s value until s = 0.5w, a hole pitch between two adjacent columns in such state is m0; and an actual hole pitch between two adjacent columns is made to satisfy a condition of mactual ≤m0 in the second direction and within the array.

9. The electrostatic dust collection device according to claim 5, wherein the fin plate is provided with an arrangement region, and the connection holes and the avoidance holes within the arrangement region are arranged in the array; both ends of the fin plate in the second direction are provided with densified regions, respectively, and a portion of the fin plate other than the densified regions is the arrangement region, and the densified regions are provided with at least one column of alternately arranged connection holes and avoidance holes along the third direction; and in the third direction, a hole pitch between two adjacent rows in the densified regions is equal to half of a hole pitch between two adjacent rows in the arrangement region.

10. The electrostatic dust collection device according to any one of claims 3 to 9, wherein both the first metal plate and the second metal plate are the fin plate, and the second metal plate is a structure of the first metal plate rotated by (1 + 2N) × 180°, where N is an integer.

11. The electrostatic dust collection device according to claim 1, wherein the first positioning part is a first positioning sleeve, and the second positioning part is a second positioning sleeve; and the positioning assembly further comprises an adjustment part, wherein the adjustment part can be sleeved on an outside of the support column part to adjust a spacing between adjacent first metal plate and second metal plate.

12. The electrostatic dust collection device according to claim 11, wherein the adjustment part comprises: a coarse adjustment block, capable of being arranged at both ends of the dust collection main body in the first direction to compensate for a cumulative tolerance of the positioning assembly in the first direction; and an adjustment pad, capable of being arranged between the first metal plate and the first positioning sleeve or between the second metal plate and the second positioning sleeve, wherein the coarse adjustment block and the adjustment pad both have multiple dimension specifications; a dimension of the coarse adjustment block in the first direction is 1mm, 2mm, 3mm, 4mm, or 5mm; and a dimension of the adjustment pad in the first direction is 0.1mm, 0.2mm, 0.3mm, 0.4mm, or 0.5mm.

13. The electrostatic dust collection device according to claim 1, further comprising a protective frame and a control unit, wherein the protective frame is framed on an outside of the dust collection main body, the protective frame is provided with an embedding slot, the control unit is arranged in the embedding slot, and the first support column and the second support column are electrically connected to the control unit, respectively.

14. The electrostatic dust collection device according to claim 13, wherein the protective frame comprises two cover bodies respectively arranged on both sides of the dust collection main body in the first direction; and both ends of the support column part are respectively inserted into the two cover bodies.

15. The electrostatic dust collection device according to claim 1, wherein both ends of the support column part in the first direction are provided with limiting parts to define positions of the first metal plate, the second metal plate, and the positioning assembly that penetrate through the support column part; and at least one of the two limiting parts arranged on a same support column part is in a movable connection with the support column part to adjust a pressing degree between the first metal plate and the positioning assembly and between the second metal plate and the positioning assembly that penetrate through the support column part.

16. The electrostatic dust collection device according to claim 14, further comprising an insulating terminal, wherein a first of the first support column and the second support column is inserted into the cover body via the insulating terminal, and a second of the first support column and the second support column is directly inserted into the cover body; and / or the embedding slot is arranged on at least one of the two cover bodies; and / or the control unit is treated by a potting sealing process; and / or the control unit comprises a DC positive output terminal and a DC negative output terminal, wherein the first of the first support column and the second support column is electrically connected to the DC positive output terminal, the second of the first support column and the second support column is electrically connected to the DC negative output terminal, and a voltage between the DC positive output terminal and the DC negative output terminal is 12V to 24V.

17. The electrostatic dust collection device according to claim 16, wherein the insulating terminal is treated by a potting sealing process; and / or, in the first direction, a distance from the one of the first metal plate and the second metal plate, which is nearest to the cover body where the insulating terminal is located, to the insulating terminal is greater than or equal to the distance between adjacent first metal plate and second metal plate.

18. The electrostatic dust collection device according to claim 14, wherein the cover body is provided with a convex rib extending along a second direction perpendicular to the first direction, and the convex rib is arranged between two adjacent support column parts; and in the first direction, a distance from one of the first metal plate and the second metal plate that is nearest to the cover body where the convex rib is located to the convex rib is less than or equal to 0.8v, where v is a face wind speed between the first metal plate and the second metal plate.

19. The electrostatic dust collection device according to claim 14, wherein the protective frame further comprises side covers arranged on both sides of the dust collection main body in a second direction perpendicular to the first direction, and the side cover is provided with a protective space, wherein at least a portion of the dust collection main body extends into the protective space; and an anti-creepage gap is arranged between the side cover and the dust collection main body.

20. The electrostatic dust collection device according to claim 19, wherein the side cover comprises a shield plate and two connecting plates connected to each other, and the two connecting plates are arranged on a same side of the shield plate in the second direction and are respectively connected to both ends of the shield plate in the third direction so that the side plates form the protective space; and the third direction is perpendicular to the first direction and the second direction, respectively; and / or the side cover is connected to the cover body via the connecting plate.

21. The electrostatic dust collection device according to claim 20, wherein a dimension of the connecting plate in the second direction is defined as c, a minimum distance from the shield plate to the dust collection main body in the second direction is defined as z, a face wind speed between the first metal plate and the second metal plate is defined as v, and a distance between adjacent first metal plate and second metal plate in the first direction is defined as w, where c≥z+1.5v and z≥1.5w.

22. The electrostatic dust collection device according to claim 1, wherein between the adjacent first metal plate and second metal plate, other portions, excluding the support column part and the positioning assembly, are hollowed structures.

23. An electrostatic dust removal system, characterized by comprising the electrostatic dust collection device according to any one of claims 1 to 22.

24. The electrostatic dust removal system according to claim 23, further comprising an electrostatic discharge device, wherein the electrostatic discharge device is arranged separately from the electrostatic dust collection device.

25. The electrostatic dust removal system according to claim 24, wherein the electrostatic discharge device is a needle discharge device, a carbon brush discharge device, or an electrode wire discharge device.

26. A design method for an electrostatic dust collection device, <b>characterized by comprising steps: determining a dimension of a fin plate of the electrostatic dust collection device, comprising determining a dimension of the fin plate in a second direction and a third direction; determining positions of holes in an arrangement region of the fin plate so that the holes in the arrangement region are arranged in an array, thus any row and any column in the arrangement region are arranged in an alternating manner of first holes and second holes; and confirming the number of rows and columns of the holes in the arrangement region based on the dimension of the fin plate, and confirming a hole pitch of each row and a hole pitch of each column; designing a structure of the dust collection main body, comprising dividing the fin plate into a first metal plate and a second metal plate, such that the second metal plate is a structure of the first metal plate rotated by (1 + 2N) × 180°, where N is an integer; enabling that the first metal plate and the second metal plate are parallel and alternately arranged along a first direction, allowing a support column part to penetrate through the first metal plate and the second metal plate along the first direction via the first holes and the second holes, and arranging a positioning assembly on an outside of the support column part to support two adjacent first metal plates or two adjacent second metal plates via the positioning assembly, so as to form the dust collection main body; determining dimensions of the support column part, the positioning assembly, a diameter of the first hole, and a diameter of the second hole of the electrostatic dust collection device, comprising determining dimensions of the support column part and the positioning assembly in the first direction, and ensuring that the diameter of the first hole is greater than an outer diameter of the positioning assembly, and the diameter of the second hole is smaller than the outer diameter of the positioning assembly and greater than or equal to an outer diameter of the support column part; and designing a structure of the protective frame, comprising designing a structure and dimension of the protective frame that can enclose an outside of the dust collection main body according to the dimension of the dust collection main body.

27. The design method for an electrostatic dust collection device according to claim 26, wherein a hole pitch of each row of the array satisfies a condition: d ≥ 0.7 × D n , and a hole pitch of each column of the array satisfies a condition: mactual≤m0, where D is a dimension of the fin plate in the third direction, n is a total number of the first holes and the second holes comprised in the array; and m0 is a hole pitch between two adjacent columns in the arrangement region, in a case where a 2 Newton pressure is applied to a midpoint between two adjacent columns on the fin plate along the first direction, and a deformation amount at the midpoint of the fin plate in the first direction is s=0.5w.

28. The design method for an electrostatic dust collection device according to claim 26, wherein after the step of determining the positions of the holes in the arrangement region of the fin plate, the method further comprises designing a densified region, comprising designing at least one column of alternately arranged first holes and second holes along the third direction at both ends of the fin plate in the second direction, such that a hole pitch of each row in the densified region is half of a hole pitch of each row in the arrangement region.

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