Electrostatic dust collecting apparatus, electrostatic dust collecting system, and method for designing electrostatic dust collecting apparatus

Abstract

The application relates to the technical field of electrostatic dust removal equipment, in particular to an electrostatic dust collecting device, an electrostatic dust removal system and an electrostatic dust collecting device design method. The electrostatic dust collecting device comprises 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 and arranged alternately along a first direction. 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 with the first metal plate, and the second support column is electrically connected with the second metal plate. The first positioning sleeve is arranged on the outer side of the first support column, and two adjacent first metal plates are supported through the first positioning sleeve. The second positioning sleeve is arranged on the outer side of the second support column, and two adjacent second metal plates are supported through the second positioning sleeve. According to the electrostatic dust collecting device, the machining precision of the support structure is improved, and the uniformity of the spacing between two adjacent conductive plates of the electrostatic dust collecting device is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrostatic dust collection equipment, in particular to an electrostatic dust collection device, an electrostatic dust collection system and a design method of the electrostatic dust collection device. BACKGROUND

[0002] The electrostatic dust collection device currently includes multiple parallel and spaced parallel conductive plates. The smaller the distance between the two adjacent parallel conductive plates, the higher the purification efficiency of the electrostatic dust collection device. The electrostatic dust collection device currently includes two forms of plastic plate micro electrostatic field dust collection device and metal plate micro electrostatic field dust collection device.

[0003] However, the parallel conductive plates of the plastic plate micro electrostatic field dust collection device currently usually adopt a structure form of coating a conductive coating on the surface of a plastic base material, which makes the base material prone to deformation and damage under the condition of changes in ambient temperature and humidity, and further causes the conductive plate to deform and damage, resulting in short-circuiting and sparking, which not only sharply reduces the purification efficiency of the electrostatic dust collection device, but also causes a safety hazard of the plastic plate micro electrostatic field dust collection device after being used for a period of time.

[0004] The parallel conductive plates of the metal plate electrostatic field dust collection device currently usually adopt a structure form of a metal thin plate, which is affected by factors such as the machining precision of the support structure supporting the metal thin plate and the assembly precision of the metal thin plate, so that the distance between the two adjacent parallel conductive plates is difficult to keep consistent, which makes it necessary to leave a sufficient safety distance (for example, the distance between the two adjacent parallel conductive plates needs to reach 5mm-10mm or more) between the two adjacent parallel conductive plates of the metal plate electrostatic field dust collection device to avoid the phenomenon of local popping sound between the two parallel conductive plates due to inconsistent distance. This greatly affects the purification efficiency of the metal plate electrostatic field dust collection device.

[0005] In addition, the width of the parallel conductive plates of the metal plate electrostatic field dust collection device is designed to be relatively large in order to compensate for the problem of insufficient purification efficiency of the metal plate electrostatic field dust collection device due to the need to leave a sufficient safety distance between the two adjacent parallel conductive plates, which further causes the metal plate electrostatic field dust collection device currently to be relatively "thick and bulky", high in manufacturing cost, occupy space, and limited in application scenarios, and difficult to replace the Hepa filter screen and other purification and dust removal products. SUMMARY

[0006] The purpose of the present application is to provide an electrostatic dust collecting device, an electrostatic dust collecting system and an electrostatic dust collecting device design method, to solve the problem of the existing technology that the plastic plate micro-electrostatic field dust collecting device is prone to deformation and damage, which causes the conductive plate to deform and damage, resulting in short-circuiting and sparking, which not only sharply reduces the purification efficiency of the electrostatic dust collecting device, but also poses a safety hazard after a period of use. The spacing between the two adjacent parallel conductive plates of the metal plate electrostatic field dust collecting device is difficult to keep consistent due to the factors such as the machining precision of the supporting structure of the supporting metal sheet and the assembly precision of the metal sheet. In order to avoid the phenomenon of local popping sound caused by inconsistent spacing, a sufficient safety distance is required between the two adjacent parallel conductive plates of the metal plate electrostatic field dust collecting device, which greatly affects the purification efficiency of the metal plate electrostatic field dust collecting device. If the problem of insufficient purification efficiency caused by the need for a sufficient safety distance between the two adjacent parallel conductive plates of the metal plate electrostatic field dust collecting device is to be solved, the width of the parallel conductive plate needs to be increased, resulting in the problem that the current metal plate electrostatic field dust collecting device is usually "bulky and clumsy", has high manufacturing cost, occupies space, and has limited application scenarios, making it difficult to replace the technology of Hepa filter screen and other purification and dust removal products.

[0007] According to the first aspect of the present application, an electrostatic dust collecting device is provided, comprising a dust collecting main body, the dust collecting main body comprising a first metal plate, a second metal plate, a support part and a positioning assembly;

[0008] The support part comprises a first support for connection with a first polarity and a second support for connection with a second polarity;

[0009] The first metal plate and the second metal plate are both parallel and arranged alternately along a first direction, the first support and the second support both penetrate the first metal plate and the second metal plate along the first direction, and the first support is electrically connected with the first metal plate, and the second support is electrically connected with the second metal plate;

[0010] The positioning assembly comprises a first positioning part and a second positioning part, the first positioning part is sleeved on the outer side of the first support, and two adjacent first metal plates are supported by the first positioning part, and the second positioning part is sleeved on the outer side of the second support, and two adjacent second metal plates are supported by the second positioning part.

[0011] Preferably, in the first direction, the distance between two adjacent first metal plates and the second metal plate is 1.5mm-2.7mm;

[0012] And / or, the size of the first metal plate and the second metal plate in the third direction is 55mm, and the third direction is perpendicular to the first direction.

[0013] Preferably, further comprising a fin plate, the fin plate being provided with an avoiding hole and a connecting hole penetrating through the fin plate along the first direction;

[0014] The pillar portion is capable of penetrating through the avoiding hole and the connecting hole respectively, and the positioning assembly is capable of penetrating through the avoiding hole;

[0015] The avoiding hole has a hole diameter greater than an outer diameter of the positioning assembly;

[0016] The connecting hole has a hole diameter less than the outer diameter of the positioning assembly and greater than or equal to an outer diameter of the pillar portion.

[0017] Preferably, a distance between two adjacent first metal plates and the second metal plate defined in the first direction is w;

[0018] A difference between the hole diameter of the avoiding hole and the outer diameter of the positioning assembly is greater than or equal to w+2mm.

[0019] Preferably, at least part of the connecting hole and the avoiding hole on the fin plate is distributed in an array, and in the array, any row of holes and any column of holes are provided in an alternating manner of the avoiding hole and the connecting hole.

[0020] Preferably, the fin plate extends along a second direction, the second direction being perpendicular to the first direction;

[0021] Any row of the array extends along the second direction, the number of rows of the array is even, and the rows of the array are spaced apart in a third direction, the third direction being perpendicular to the second direction;

[0022] A center line of the array in the third direction coincides with a center line of the fin plate in the third direction.

[0023] Preferably, a hole distance between two adjacent rows defined in the third direction and in the array is d, a dimension of the fin plate in the third direction is D, and a total number of the connecting hole and the avoiding hole contained in the array is n;

[0024] wherein,

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

[0026] At a midpoint between two adjacent columns of the fin plate, a pressure of 2 Newton is applied along the first direction, at this time, a deformation amount of the midpoint of the fin plate in the first direction is s;

[0027] The value of m is changed repeatedly to obtain the value of s until s = 0.5w, and in this state, the hole distance between two adjacent columns is m0;

[0028] So that in the second direction, and within the array, the actual hole distance m 实 ≤m0.

[0029] Preferably, the fin plate is provided with a placement area, and the connecting holes and the avoiding holes in the placement area are arranged in the array;

[0030] The two ends of the fin plate in the second direction are respectively provided with an encryption area, and the part of the fin plate other than the encryption area is the placement area, and the encryption area is provided with at least one column of connecting holes and avoiding holes arranged alternately in the third direction;

[0031] In the third direction, the hole distance between two adjacent rows in the encryption area is equal to half of the hole distance between two adjacent rows in the placement area.

[0032] Preferably, the first metal plate and the second metal plate are both the fin plate, and the second metal plate is a structure of the first metal plate flipped 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 comprises an adjusting part, which can be sleeved on the outside of the support part to adjust the distance between two adjacent first metal plates and second metal plates.

[0035] Preferably, the adjusting part comprises:

[0036] A coarse adjustment block, which can be arranged at both ends of the dust collection main body in the first direction to compensate for the cumulative tolerance of the positioning assembly in the first direction;

[0037] An adjusting 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;

[0038] The coarse adjustment block and the adjusting pad have multiple size specifications;

[0039] The size of the coarse adjustment block in the first direction is 1mm, 2mm, 3mm, 4mm or 5mm;

[0040] The size of the adjusting pad in the first direction is 0.1mm, 0.2mm, 0.3mm, 0.4mm or 0.5mm.

[0041] Preferably, a protective frame is further included, which is arranged outside the dust collecting main body and is provided with an embedded slot, and a control part is arranged in the embedded slot, and the first support and the second support are electrically connected with the control part respectively.

[0042] Preferably, the protective frame includes two cover bodies arranged on two sides of the dust collecting main body in the first direction respectively.

[0043] The two ends of the support part are respectively inserted into the two cover bodies.

[0044] Preferably, the two ends of the support part in the first direction are provided with limiting parts to limit the positions of the first metal plate, the second metal plate and the positioning assembly inserted through the support part.

[0045] At least one of the two limiting parts arranged in the same support part is movably connected with the support part to adjust the compression degree between the first metal plate and the positioning assembly and between the second metal plate and the positioning assembly inserted through the support part.

[0046] Preferably, an insulating terminal is further included, and a first one of the two first support and the second support is inserted into the cover body via the insulating terminal, and a second one of the two first support and the second support is directly inserted into the cover body.

[0047] And / or, the embedded slot is arranged in at least one of the two cover bodies.

[0048] And / or, the control part is processed via a glue sealing process.

[0049] And / or, the control part includes a direct current positive output end and a direct current negative output end, a first one of the two first support and the second support is electrically connected with the direct current positive output end, and a second one of the two first support and the second support is electrically connected with the direct current negative output end, and the voltage between the direct current positive output end and the direct current negative output end is 12V-24V.

[0050] Preferably, the insulating terminal is processed via a glue sealing process.

[0051] And / or,

[0052] In the first direction, the distance from the cover body where the insulating terminal is located to the insulating terminal of one of the two first metal plates and the second metal plates is greater than or equal to the distance between the two adjacent first metal plates and the second metal plates.

[0053] Preferably, the cover is provided with a protruding rib extending along a second direction perpendicular to the first direction, the protruding rib being arranged between two adjacent pillar portions;

[0054] In the first direction, the distance from the protruding rib to the one of the first metal plate and the second metal plate closest to the cover where the protruding rib is arranged 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.

[0055] Preferably, the protective frame further comprises side covers arranged on both sides of the dust collecting main body in a second direction perpendicular to the first direction.

[0056] The side covers are provided with protective spaces into which at least part of the dust collecting main body extends.

[0057] A creepage-preventing gap is arranged between the side covers and the dust collecting main body.

[0058] Preferably, the side covers comprise a shielding plate and two connecting plates connected to each other, the two connecting plates being arranged on the same side of the shielding plate in the second direction and connected to both ends of the shielding plate in a third direction respectively, so that the side covers enclose the protective spaces, the third direction being perpendicular to the first direction and the second direction respectively.

[0059] And / or, the side covers are connected to the cover via the connecting plates.

[0060] Preferably, the size of the connecting plates in the second direction is defined as c, the minimum distance from the shielding plate to the dust collecting main body in the second direction is defined as z, the face wind speed between the first metal plate and the second metal plate is defined as v, and the distance between two adjacent first metal plates and the second metal plate in the first direction is defined as w.

[0061] Wherein, c≥z+1.5v, and z≥1.5w.

[0062] Preferably, between two adjacent first metal plates and the second metal plate, other parts than the pillar portions and the positioning assembly are hollow structures.

[0063] According to the second aspect of the present application, an electrostatic precipitation system is provided, comprising the electrostatic dust collecting device according to any one of the technical solutions described above, thus having all the beneficial technical effects of the electrostatic dust collecting device, which will not be described here again.

[0064] Preferably, the electrostatic precipitation system further comprises an electrostatic discharge device, the electrostatic discharge device and the electrostatic dust collecting device being arranged separately.

[0065] Preferably, the electrostatic discharge device is a needle-point discharge device, a carbon brush discharge device or a wire discharge device.

[0066] According to a third aspect of the present application, a method for designing an electrostatic precipitator is provided, which is used for designing the electrostatic precipitator of any of the above technical solutions, thus having all the beneficial technical effects of the electrostatic precipitator, which will not be repeated here.

[0067] Specifically, the steps include:

[0068] determining the size of the fin plate of the electrostatic precipitator, and determining the size of the fin plate in the second direction and the third direction;

[0069] determining the position of the holes in the placement area of the fin plate, so that the holes in the placement area are distributed in an array, so that any row and any column in the placement area are arranged in an alternating manner of the first hole and the second hole, the number of rows and columns of holes in the placement area is determined according to the size of the fin plate, and the row hole distance and the column hole distance are determined;

[0070] designing the structure of the dust collection main body, dividing the fin plate into a first metal plate and a second metal plate, so that the second metal plate is a structure of (1+2N)×180° of the first metal plate, where N is an integer, so that the first metal plate and the second metal plate are parallel and arranged alternately along the first direction, so that the support portion penetrates the first metal plate and the second metal plate through the first hole and the second hole along the first direction, and so that the positioning assembly is sleeved on the outer side of the support portion to support adjacent two first metal plates or adjacent two second metal plates through the positioning assembly to form the dust collection main body;

[0071] determining the size of the support portion, the positioning assembly, the hole diameter of the first hole and the hole diameter of the second hole of the electrostatic precipitator, determining the size of the support portion and the positioning assembly in the first direction, so that the hole diameter of the first hole is greater than the outer diameter of the positioning assembly, the hole diameter of the second hole is less than the outer diameter of the positioning assembly, and is greater than or equal to the outer diameter of the support portion;

[0072] designing the structure of the protective frame, and designing the structure and size of the protective frame capable of being sleeved on the outer side of the dust collection main body according to the size of the dust collection main body.

[0073] Preferably, the row hole distance of the array is the column hole distance m of the array 实 ≤m0;

[0074] Wherein, D is the size of the fin plate in the third direction, n is the sum of the number of the first holes and the second holes contained in the array, m0 is the hole distance between the adjacent two columns in the setting area when the deformation of the midpoint of the fin plate in the first direction is s = 0.5w under the condition that a pressure of 2 Newton is applied in the first direction at the midpoint between the adjacent two columns of the fin plate.

[0075] Preferably, the step of determining the position of the holes in the setting area of the fin plate further comprises designing an encryption area, at least one column of the first holes and the second holes arranged alternately in the third direction at both ends of the fin plate in the second direction, so that the hole distance of each row in the encryption area is half of the hole distance of each row in the setting area.

[0076] Compared with the prior art, the application has the following beneficial effects:

[0077] The electrostatic dust collecting device provided by the application has the following advantages: the first metal plate and the second metal plate are used as two different polarity conductive plates, which effectively avoids the deformation and damage of the plastic plate micro-electrostatic field dust collecting device substrate; the first pillar penetrates the first metal plate, the second metal plate and the first positioning sleeve, so that the positions of the first metal plate, the second metal plate and the first positioning sleeve are fixed relative to a plane perpendicular to the first direction; the first positioning sleeve supports the adjacent two first metal plates, and the second positioning sleeve supports the adjacent two second metal plates, so that the support structure of each layer of conductive plates of the electrostatic dust collecting device is zero, the processing difficulty of the support structure is effectively reduced, the processing precision of the support structure is improved, the uniformity of the spacing between the adjacent two conductive plates of the electrostatic dust collecting device is ensured, the space required for setting a safety distance between the adjacent two conductive plates is saved, the spacing between the adjacent two conductive plates of the electrostatic dust collecting device is greatly reduced, the purification efficiency of the electrostatic dust collecting device is effectively improved, the dilemma of sacrificing the width size of the conductive plate to ensure the purification efficiency is broken, the volume of the metal plate electrostatic field dust collecting device is effectively compressed, and the adaptability of the metal plate electrostatic field dust collecting device is improved.

[0078] To make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are referred to. BRIEF DESCRIPTION OF DRAWINGS

[0079] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art of the present application, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0080] Figure 1 The explosion structure schematic diagram of the dust collecting main body provided for the embodiment of the present application is shown in the figure.

[0081] Figure 2 The partial structure schematic diagram of the dust collecting main body provided for the embodiment of the present application is shown in the figure.

[0082] Figure 3 The top view structure schematic diagram of the static fin plate provided for the embodiment of the present application is shown in the figure.

[0083] Figure 4 The limit torque distribution schematic diagram of the fin plate in the use state provided for the embodiment of the present application is shown in the figure. Figure 3

[0084] Figure 5 The process schematic diagram of the fin plate for determining the column spacing provided for the embodiment of the present application is shown in the figure. Figure 3

[0085] Figure 6 The cross-sectional structure schematic diagram obtained by the plane sectioning of the electrostatic dust collecting device along both the first direction and the second direction provided for the embodiment of the present application is shown in the figure.

[0086] Figure 7 The partial cross-sectional structure schematic diagram obtained by the plane sectioning of the electrostatic dust collecting device along both the first direction and the third direction provided for the embodiment of the present application is shown in the figure.

[0087] Figure 8 The enlarged structure schematic diagram of the electrostatic dust collecting device at A provided for the embodiment of the present application is shown in the figure. Figure 7

[0088] Figure 9 The explosion structure schematic diagram of the electrostatic dust collecting device provided for the embodiment of the present application is shown in the figure.

[0089] Figure 10 The isometric structure schematic diagram of the electrostatic dust collecting device provided for the embodiment of the present application is shown in the figure.

[0090] Figure 11 The structure schematic diagram of the electrostatic dust collecting system provided for the embodiment of the present application is shown in the figure.

[0091] Figure 12 The connection structure schematic diagram of the electrostatic dust collecting unit provided for the embodiment of the present application is shown in the figure.

[0092] ​​​Figure 13 A comparison chart of dust collection efficiencies of different electrostatic dust collection devices in different humidity environments;

[0093] Figure 14 A flow chart of the electrostatic dust collection device design method provided by the embodiments of the present application.

[0094] Reference signs:

[0095] 10-fin plate; 101-connection hole; 102-avoidance hole; 103-center line; 104-arrangement area; 105-encryption area; 106-tips notch; 11-first metal plate; 12-second metal plate; 131-first support; 132-second support; 14-positioning assembly; 1411-first positioning sleeve; 1412-second positioning sleeve; 142-adjusting pad; 15-limiting part;

[0096] 21-cover; 211-convex rib; 2111-protruding part; 2112-extension; 22-side cover; 221-shielding plate; 222-connection plate; 23-insulating terminal; 24-embedded groove; 25-flow guiding groove;

[0097] 3-control part; 31-direct current positive output end; 32-direct current negative output end;

[0098] 41-normal working light; 42-fault light; 5-warning device.

[0099] F1-first direction; F2-second direction; F3-third direction. DETAILED DESCRIPTION

[0100] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments of the present application.

[0101] The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.

[0102] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0103] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0104] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0105] As Figure 1 The explosion structure schematic diagram of the dust collecting main body provided by the embodiment of the present application needs to be explained. Because the plate spacing between the first metal plate 11 and the second metal plate 12 in the physical electrostatic dust removal device is small, and the first metal plate 11 and the second metal plate 12 both shield the pillar part and the positioning assembly 14, Figure 1 The first metal plate 11, the second metal plate 12 and the positioning assembly 14 are relatively moved along the first direction F1 to clearly define the relative positional relationship of the first metal plate 11, the second metal plate 12, the pillar part and the positioning assembly 14; as Figure 2 The partial structure schematic diagram of the dust collecting main body provided by the embodiment of the present application; as Figure 3 The top view structure schematic diagram of the static fin plate 10 provided by the embodiment of the present application; as Figure 4 The limit torque distribution schematic diagram of the fin plate 10 in the use state provided by the embodiment of the present application. The use state here can be understood as the state of assembling the fin plate 10 as the first metal plate 11 or the second metal plate 12 to the electrostatic dust removal device; as Figure 3 The limit torque distribution schematic diagram of the fin plate 10 in the use state provided by the embodiment of the present application. The use state here can be understood as the state of assembling the fin plate 10 as the first metal plate 11 or the second metal plate 12 to the electrostatic dust removal device; as Figure 5 The limit torque distribution schematic diagram of the fin plate 10 in the use state provided by the embodiment of the present application. The use state here can be understood as the state of assembling the fin plate 10 as the first metal plate 11 or the second metal plate 12 to the electrostatic dust removal device; as Figure 3 The process schematic diagram of determining the column spacing of the fin plate 10 provided by the embodiment of the present application; as Figure 6 The cross-sectional structure schematic diagram obtained by cutting the electrostatic dust collecting device along the first direction F1 and the second direction F2; as Figure 7 The partial cross-sectional structure schematic diagram obtained by cutting the electrostatic dust collecting device along the first direction F1 and the third direction F3; as Figure 8 The cross-sectional structure schematic diagram obtained by cutting the electrostatic dust collecting device along the first direction F1 and the third direction F3; asFigure 7 An enlarged structural schematic view of the electrostatic dust collecting device at A is provided; as Figure 9 An exploded structural schematic view of the electrostatic dust collecting device provided for the embodiments of the present application; as Figure 10 An axonometric structural schematic view of the electrostatic dust collecting device provided for the embodiments of the present application; as Figure 11 A structural schematic view of the electrostatic dust collecting system provided for the embodiments of the present application; as Figure 12 A connection structural schematic view of the electrostatic dust collecting device provided for the embodiments of the present application; as Figure 13 A comparison chart of the dust collecting efficiency of different electrostatic dust collecting devices under different humidity environments; as Figure 14 A flowchart of the electrostatic dust collecting device design method provided for the embodiments of the present application.

[0106] The electrostatic dust collecting device, the electrostatic dust collecting system and the electrostatic dust collecting device design method according to some embodiments of the present application are described below with reference to Figures 1 to 14 The electrostatic dust collecting device, the electrostatic dust collecting system and the electrostatic dust collecting device design method according to some embodiments of the present application are described below with reference to

[0107] Referring to Figures 1 to 12 , the embodiments of the first aspect of the present application provide an electrostatic dust collecting device, which includes a dust collecting main body. The dust collecting main body includes a first metal plate 11, a second metal plate 12, a support part and a positioning assembly 14. The support part includes a first support 131 for connection with a first polarity and a second support 132 for connection with a second polarity. The first metal plate 11 and the second metal plate 12 are both parallel and arranged alternately along a first direction F1, the first support 131 and the second support 132 both penetrate the first metal plate 11 and the second metal plate 12 along the first direction F1, and the first support 131 is electrically connected with the first metal plate 11, and the second support 132 is electrically connected with the second metal plate 12. The positioning assembly 14 includes a first positioning sleeve 1411 and a second positioning sleeve 1412, the first positioning sleeve 1411 is sleeved on the outer side of the first support 131, and two adjacent first metal plates 11 are supported via the first positioning sleeve 1411, and the second positioning sleeve 1412 is sleeved on the outer side of the second support 132, and two adjacent second metal plates 12 are supported via the second positioning sleeve 1412.

[0108] According to the electrostatic dust collection device provided by the above technical features, by sleeved with a first positioning sleeve 1411 on the outside of the first pillar 131 and a second positioning sleeve 1412 on the outside of the second pillar 132, two adjacent first metal plates 11 can be supported by the first positioning sleeve 1411, and two adjacent second metal plates 12 can be supported by the second positioning sleeve 1412. Thus, by using the first metal plates 11 and 12 as two conductive plates of different polarities, the deformation and damage of the substrate of the plastic micro-electrostatic field dust collection device are easily avoided. Furthermore, by having the first pillar 131 penetrate the first metal plate 11, the second metal plate 12, and the first positioning sleeve 1411, a plane relatively perpendicular to the first direction F1 is formed, fixing the positions of the first metal plate 11, the second metal plate 12, and the first positioning sleeve 1411. (And by having the second pillar 132 penetrate the first metal plate 11, the second metal plate 12, and the second positioning sleeve 1412, the positions of the three plates are fixed.) The positions of the first metal plate 11, the second metal plate 12, and the second positioning sleeve 1412 are fixed relative to the plane perpendicular to the first direction F1. On the other hand, by having the first positioning sleeve 1411 support two adjacent first metal plates 11 (and the second positioning sleeve 1412 support two adjacent second metal plates 12), the support structure of each conductive plate of the electrostatic dust collection device is broken down into smaller parts, which effectively reduces the processing difficulty of the support structure, improves the processing accuracy of the support structure, and thus ensures the uniformity of the spacing between two adjacent conductive plates of the electrostatic dust collection device. This saves the space required to set a safety distance 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, breaks through the dilemma of sacrificing the width of the conductive plate to ensure purification efficiency, effectively compresses the volume of the metal plate electrostatic field dust collection device, and improves the adaptability of the metal plate electrostatic field dust collection device.

[0109] like Figure 13 As shown in the figure, a current micro-electrostatic field dust collection device for plastic sheets (i.e., Figure 13 Curve I shown), and current metal plate micro-electrostatic field dust collection devices (i.e. Figure 13 Curve II shown) and the electrostatic dust collection device provided in this application (i.e. Figure 13 The curves shown (Ⅲ) illustrate the changes in purification efficiency of the three components under continuous monitoring. The dashed lines in the graph represent the corresponding environmental pH values ​​during the monitoring period. Figure 13 A straight line perpendicular to the horizontal axis is drawn from any point on the axis. The intersection point of curves I, II, and III represents 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 in this application under the same environmental conditions (i.e., the same environmental humidity and the same environmental pH). Figure 13As can be clearly seen, with the extension of the use time, the purification efficiency of both the current plastic plate micro-electrostatic field dust collecting device and the current metal plate micro-electrostatic field dust collecting device has a certain attenuation, and the purification efficiency of the current metal plate micro-electrostatic field dust collecting device is greatly affected by the change of environmental humidity and environmental pH value, in other words, the purification efficiency of the current metal plate micro-electrostatic field dust collecting device is greatly affected by the environment. The purification efficiency of the electrostatic dust collecting device provided by the application is relatively stable and less affected by environmental changes, and the purification efficiency of the electrostatic dust collecting device provided by the application does not decrease with the extension of the use time.

[0110] As shown in Figures 1 to 12 , F1 shown in the figure can be an example in the first direction described above, for the convenience of description, two directions perpendicular to each other in the plane parallel to 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 second direction F2 and the third direction F3 are parallel to the first metal plate 11. F2 shown in the figure can be an example in the second direction described above, and F3 shown in the figure can be an example in the third direction described above.

[0111] In the embodiment, preferably, as shown in Figures 3 to 6 , the electrostatic dust collecting device described above can further include a fin plate 10 provided with an avoiding hole 102 and a connecting hole 101 penetrating through the fin plate 10 along the first direction F1. Wherein, the above-mentioned support part can penetrate through the avoiding hole 102 and the connecting hole 101 respectively, and the above-mentioned positioning assembly 14 can penetrate through the avoiding hole 102. And the hole diameter of the avoiding hole 102 is greater than the outer diameter of the positioning assembly 14. The hole diameter of the connecting hole 101 is less than the outer diameter of the positioning assembly 14, and greater than or equal to the outer diameter of the support part, so that one of the support parts with the same polarity as the fin plate 10 can be electrically connected with the fin plate 10 through the connecting hole 101 and the positioning assembly 14, and the other support part with different polarity from the fin plate 10 can be isolated from the fin plate 10 through the avoiding hole 102.

[0112] Preferably, as shown in Figure 3 , the avoiding hole 102 and the connecting hole 101 shown above are examples of round holes, but are not limited thereto, and the shape of the avoiding hole 102 and the connecting hole 101 can be adaptively adjusted according to the shape of the support part, for example, both the avoiding hole and the connecting hole can also be polygonal holes, oval holes or special-shaped holes.

[0113] As shown in Figure 1As shown, both the first metal plate 11 and the second metal plate 12 can be the aforementioned fin plate 10. It should be noted that when the first metal plate 11 and the second metal plate 12 are arranged at intervals along the first direction F1, the connecting hole 101 of the first metal plate 11 and the clearance hole 102 of the second metal plate 12 are directly opposite each other in the first direction F1 for the first support column 131 to pass through; similarly, the connecting hole 101 of the second metal plate 12 and the clearance hole 102 of the first metal plate 11 are directly opposite each other in the first direction F1 for the second support column 132 to pass through.

[0114] Thus, with Figure 2 Taking the structure of the first pillar 131 and the positioning component 14 supporting two adjacent first metal plates 11 as an example, on the one hand, the diameter of the connecting hole 101 is smaller than the outer diameter of the positioning component 14 and greater than or equal to the outer diameter of the pillar portion. This allows the first pillar 131 to smoothly pass through the first metal plate 11 and the second metal plate 12, and the two adjacent first metal plates 11 can be supported by the first positioning sleeve 1411 (or the first positioning sleeve 1411 and the adjusting pad 142), and the electrical connection between the two adjacent first metal plates 11 is achieved through the first positioning sleeve 1411 (or the first positioning sleeve 1411 and the adjusting pad 142). On the other hand, the diameter of the clearance hole 102 is larger than the outer diameter of the positioning component 14. Thus, the first pillar 131 can pass through the second metal plate 12 disposed between the two adjacent first metal plates 11 through the clearance hole 102, so as to avoid the second metal plate 12 from being connected to the first pillar 131 and causing a short circuit. It should be noted that the structure of the second pillar 132 and the positioning component 14 supporting two adjacent second metal plates 12 is similar to the structure of the first pillar 131 and the positioning component 14 supporting two adjacent first metal plates 11, and will not be described again here.

[0115] Preferably, such as Figure 7 and Figure 8 As shown, in the first direction F1, the distance between two adjacent first metal plates 11 and second metal plates 12 is w, and the difference between the diameter of the clearance hole 102 and the outer diameter of the positioning component 14 is greater than or equal to w + 2 mm (i.e., Figure 7 and Figure 8 As shown in the figure, F≥w+1mm), thus, it can effectively ensure that there is sufficient clearance space between the clearance hole 102 of the first metal plate 11 and the positioning component 14 sleeved on the outside of the second support column 132 (or between the clearance hole 102 of the second metal plate 12 and the positioning component 14 sleeved on the outside of the first support column 131), so as to avoid creepage short circuit 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).

[0116] Optionally, such as Figure 7 and Figure 8As shown, the first pillar 131 and the second pillar 132 can be metal pipes extending along the first direction F1. On one hand, the first pillar 131 and the second pillar 132 are made of conductive metal, so that the first pillar 131 and the first metal plate 11 (or the second pillar 132 and the second metal plate 12) are electrically connected through direct contact between the first pillar 131 and the first metal plate 11 (or the second pillar 132 and the second metal plate 12), facilitating assembly of the electrostatic dust collector. On the other hand, the first pillar 131 and the second pillar 132 can be hollow, so that wires can be arranged in the hollow space, facilitating hidden wiring of the electrostatic dust collector and preventing the wires from affecting the dust collection and purification efficiency of the electrostatic dust collector.

[0117] Preferably, as shown in Figure 7 and Figure 8 The two ends of the first pillar 131 in the first direction F1 can be provided with a limiting portion 15 to limit the positions of the first metal plate 11, the second metal plate 12 and the first positioning sleeve 1411 arranged in the first pillar 131.

[0118] Preferably, at least one of the two limiting portions 15 provided at the two ends of the same first pillar 131 in the first direction F1 is movably connected with the first pillar 131 to adjust the compression degree of the first metal plate 11 and the first positioning sleeve 1411 arranged in the first pillar 131, thereby adjusting the density of the first metal plate 11 and the second metal plate 12 arranged in the first pillar 131.

[0119] Similarly, as shown in Figure 7 and Figure 8 The two ends of the second pillar 132 in the first direction F1 can also be provided with a limiting portion 15 to limit the positions of the first metal plate 11, the second metal plate 12 and the second positioning sleeve 1412 arranged in the second pillar 132.

[0120] Similarly, at least one of the two limiting portions 15 provided at the two ends of the same second pillar 132 in the first direction F1 is movably connected with the second pillar 132 to adjust the compression degree of the first metal plate 11 and the second positioning sleeve 1412 arranged in the second pillar 132, thereby adjusting the density of the first metal plate 11 and the second metal plate 12 arranged in the second pillar 132.

[0121] Optionally, the limiting part 15 can be a nut, and the limiting part 15 can be screwed with the two ends of the first support 131 (or the second support 132) in the first direction F1, so as to adjust the position of the limiting part 15 relative to the first support 131 or the second support 132. However, the limiting part 15 can also be other limiting structures, for example, the limiting part 15 can also be a limiting pin, so as to change the insertion position of the limiting pin and the first support 131 or the second support 132, and realize 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.

[0122] Preferably, in the first direction F1, the distance between the adjacent two first metal plates 11 and the second metal plates 12 is 1.5mm-2.7mm, so as to ensure the dust collection and purification efficiency of the electrostatic dust collection device. For example, the distance between the adjacent two first metal plates 11 and the second metal plates 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.

[0123] Preferably, as shown in Figure 3 and Figure 6 , at least part of the connecting holes 101 and the avoiding holes 102 on the fin plate 10 are arranged in an array, and in the array, any row of holes and any column of holes are alternatively arranged with the avoiding holes 102 and the connecting holes 101. For example, taking the first metal plate 11 as the fin plate 10, the force application position of the first support 131 supporting the first metal plate 11 is the arrangement position of the connecting holes 101; the arrangement position of the avoiding holes 102 of the first metal plate 11 is the hollow structure of the first metal plate 11, which is the deformation sensitive area of the first metal plate 11. By arranging the connecting holes 101 and the avoiding holes 102 in an array and alternatively arranging each row and each column in the array with the avoiding holes 102 and the connecting holes 101, the above force application position and deformation sensitive area can be uniformly distributed on the fin plate 10. Figure 4 As shown in the limiting torque distribution diagram of the fin plate 10 in the use state, the arrangement of the connecting holes 101 and the avoiding holes 102 according to the above manner can ensure the uniformity of the limiting torque distribution of the fin plate 10, and further ensure that the fin plate 10 is not easy to deform in the use process, so as to avoid the phenomenon that the distance between the adjacent first metal plate 11 and the second metal plate 12 is not uniformly distributed due to the cumulative deformation of the fin plate 10 with the use of the electrostatic dust collection device, and effectively solve the problem that the dust collection and purification efficiency of the electrostatic dust collection device is attenuated with the cumulative use time.

[0124] Preferably, as shown in Figures 1 to 10As shown, the aforementioned fin 10 can be a long strip extending along the second direction F2. Correspondingly, the aforementioned third direction F3 can be the width direction of the fin 10. Preferably, any row of the aforementioned array can extend along the second direction F2, and correspondingly, any column of the aforementioned array can extend along the third direction F3, so that the array can adapt to the shape of the fin 10.

[0125] Preferably, such as Figure 3 As shown, the number of rows in the array can be even. The centerline 103 of the array in the third direction F3 (i.e., the centerline 103 of the array extending along the second direction F2) coincides 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, with the centerline 103 of the fin plate 10 in the third direction F3 as the boundary. The number of rows in the arrays arranged in the first part and the second part are equal, and corresponding arrangements are made about the centerline 103 (i.e., the position of the connecting hole 101 in the first part of the fin plate 10 is provided, and the position of the second part that is symmetrical about the centerline 103 is provided with a clearance hole 102), so as to further improve the uniformity of the distribution of the limiting torque of the fin plate 10 in the third direction F3.

[0126] Preferably, such as Figure 3 and Figure 6 The array can have two rows, with the first and second parts each having a row of alternating connecting holes 101 and clearance holes 102. However, it is not limited to this; the number of rows can be adjusted adaptively according to the dimensions of the electrostatic precipitator in the third direction F3.

[0127] Preferably, the dimensions of the first metal plate 11 and the second metal plate 12 in the third direction F3 can both be 55mm. This allows the electrostatic dust collection device to be consistent with the common thickness of the HEPA filter, thereby enabling the electrostatic dust collection device to effectively replace the HEPA filter. On the one hand, this improves the adaptability of the electrostatic dust collection device; on the other hand, by replacing the HEPA filter with the electrostatic dust collection device, the service life of the filter in the equipment using the filter can be effectively extended.

[0128] Preferably, such as Figure 3 As shown, defined on the third direction F3, and in the array, the hole spacing between two adjacent rows is d, the dimension of the fin 10 on the third direction F3 is D, and the total number of connecting holes 101 and clearance holes 102 included in the array is n, where, Thus, through multiple experiments and calculations by the applicant, it was determined that the aperture spacing d between two adjacent rows in the array satisfies... At the same time, it can ensure that the fin plate 10 is more evenly rebalanced under the action of the limiting torque.

[0129] It should be noted that the hole spacing involved in this application can be understood as the distance between the centers of two holes.

[0130] Preferably, with Figure 3 Taking the example of fin 10 shown, d can be equal to 0.5D. In this case, the fin 10 is subjected to the most uniform force rebalancing under the action of the limiting torque.

[0131] Preferably, such as Figure 3 and Figure 5 As shown, the hole spacing between two adjacent columns is defined as m in the second direction F2 and within the array; a pressure of 2 Newtons is applied along the first direction F1 at the midpoint between two adjacent columns of the fin 10, and the deformation of the midpoint of the fin 10 in the first direction F1 is s; the value of m is changed and the value of s is repeatedly tested until s = 0.5w, and the hole spacing between two adjacent columns in this state is obtained as m0; so that the actual hole spacing m between two adjacent columns in the second direction F2 and within the array is m0. 实 ≤m0, thus ensuring the support effect of the support column in the second direction F2, effectively reducing the bending deformation of the fin plate 10 between adjacent columns, and avoiding the phenomenon that the spacing between adjacent first metal plates 11 and second metal plates 12 will be uneven due to the cumulative deformation between adjacent columns as the electrostatic dust collection device is used, thereby further solving the problem of the dust collection and purification efficiency of the electrostatic dust collection device decreasing with the accumulation of usage time.

[0132] Optionally, such as Figure 1 , Figure 3 and Figure 6 An example of the above array structure is shown as a two-row, three-column (i.e., 2×3) array. However, it is not limited to this. The number of columns of the above array can be adaptively adjusted according to the setting span of the electrostatic dust collection device (i.e., the size 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 (a, b, c, and d are all positive integers), etc.

[0133] Preferably, such as Figure 3 As shown, the fin plate 10 can be provided with encryption regions 105 at both ends in the second direction F2, and the part of the fin plate 10 other than the encryption regions 105 can be the placement area 104 (e.g. Figure 3The area enclosed by the dashed box can be an example of the placement area 104. The connecting holes 101 and clearance holes 102 within the placement area 104 can be distributed in the array described above. The densified area 105 is provided with at least one column of densified holes, consisting of alternating connecting holes 101 and clearance holes 102 along the third direction F3. In the third direction F3, the hole spacing between adjacent rows in the densified hole column is equal to half the hole spacing between adjacent rows in the placement area 104. Thus, by densely arranging the connecting holes 101 and clearance holes 102 in the densified area 105, the density of the support pillars of the dust collection body within the densified area 105 is effectively increased. This effectively improves the connection stability of the dust collection body at both ends in the second direction F2, and effectively reduces the probability of deformation of the fin 10 under end vibration and collision conditions.

[0134] Preferably, such as Figure 3 As shown, a row of encryption holes can be provided in the encryption region 105 at one end of the fin plate 10 in the second direction F2. In the second direction F2, the distance between this row of encryption holes and the array can be equal to the spacing between two adjacent columns of the array.

[0135] like Figure 3 As shown, the structure of the fin plate 10 will be described in detail below using an example of an array structure with two rows in the placement area 104. Correspondingly, the encryption hole column includes two clearance holes 102 and two connection holes 101.

[0136] Preferably, such as Figure 3 As shown, the edge of one of the two clearance holes 102 in the encrypted hole array, which is closer to the fin plate 10 on the third direction F3 (defined as an open hole), can be made open to prevent the problem of insufficient space for the encrypted hole array arrangement.

[0137] Preferably, such as Figure 3 As shown, in the column of the array closest to the open hole, the clearance hole 102 and the open hole are respectively located on both sides of the centerline 103 in the third direction F3. Thus, in the column of the array closest to the open hole, both the connecting hole 101 and the open hole are on the same side of the centerline 103. This allows the supporting moment of the connecting hole 101 in the column of the array closest to the open hole to effectively compensate for the warping deformation of the cantilever beam structure formed at the open hole, thereby further improving the uniformity of the force rebalancing of the fin plate 10.

[0138] Preferably, such as Figure 3As shown, relative to the encryption hole column, the part of the fin plate 10 on the side opposite to the installation area 104, from the direction of the end close to the installation area 104 to the other end, the size of the fin plate 10 in the third direction F3 is gradually reduced, on the one hand, it is convenient for the guide fin plate 10 to be assembled with the side cover 22 described below; on the other hand, it is convenient for the side cover 22 and the dust collecting main body to form a creepage gap.

[0139] Preferably, as shown in the drawings, Figure 1 As shown, the fin plate 10 is provided with a sharp end notch 106 at both ends in the second direction F2 to prevent the fin sharp end from discharging.

[0140] Preferably, as shown in the drawings, Figure 1 As shown above, the second metal plate 12 can be a structure of the first metal plate 11 being flipped (1+2N)×180°, where N is an integer, so that when the first metal plate 11 and the second metal plate 12 are arranged in the first direction F1, the connecting hole 101 of the first metal plate 11 can be arranged opposite to the avoiding hole 102 of the second metal plate 12 in the first direction F1, and the connecting hole 101 of the second metal plate 12 can be arranged opposite to the avoiding hole 102 of the first metal plate 11 in the first direction F1.

[0141] Preferably, as shown in the drawings, Figure 2 and Figure 1 As shown, between the adjacent first metal plate 11 and the second metal plate 12, except for the support part and the positioning assembly 14, the other parts are hollow structures, in other words, there is no physical medium between the first metal plate 11 and the second metal plate 12, which makes the electrostatic dust collector can keep high efficiency in high humidity environment.

[0142] In the embodiment, preferably, as shown in the drawings, Figure 2 and Figure 2 As shown, the 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, the first positioning part and the second positioning part are both cylindrical, effectively increasing the support stability of the first positioning sleeve 1411 and the second positioning sleeve 1412, and effectively increasing the contact area of the first positioning sleeve 1411 with the first support 131 and the first metal plate 11 (the contact area of the second positioning sleeve 1412 with the second support 132 and the second metal plate 12), to improve the electrical connection stability.

[0143] Preferably, the positioning assembly can further include an adjusting part, which can be sleeved on the outside of the support part, for adjusting the distance between the adjacent two first metal plates and second metal plates, to improve the distance precision between the first metal plate and the second metal plate.

[0144] Preferably, the adjusting part can include a coarse adjusting block, which can be arranged at both ends of the dust collecting main body in the first direction to compensate for the cumulative tolerance of the positioning assembly in the first direction, so that when the cumulative tolerance exceeds the range that the limiting part 15 can adjust, the coarse adjusting block can be sleeved at both ends of the support part in the first direction to further compensate for the cumulative tolerance of all the first positioning sleeves 1411 and the second positioning sleeves 1412 sleeved on the same support part.

[0145] Preferably, the coarse adjusting block can have multiple size specifications, which can be understood as the size of the coarse adjusting block in the first direction F1, for example, the size of the coarse adjusting 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 adjusting block.

[0146] Optionally, the coarse adjusting block can be similar in shape to the first positioning sleeve 1411 and the second positioning sleeve 1412, both being cylindrical.

[0147] Preferably, as shown in Figure 2 The positioning assembly 14 can further include an adjusting pad 142, which can be sleeved on the outside of the support part, and the adjusting 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, so as to fine-tune the position of the fin plate 10 that is locally uneven or has a local gap that is insufficient, further improve the spacing distribution accuracy between the first metal plate 11 and the second metal plate 12, and effectively compensate for the machining error of the first positioning sleeve 1411 or the second positioning sleeve 1412 of the electrostatic dust collector in the first direction F1 by increasing the adjusting pad 142.

[0148] Preferably, as shown in Figure 2 The adjusting pad 142 can be a circlip to facilitate the installation of the adjusting pad 142, so that after the assembly of the dust collecting main body is completed, the manufacturer can adjust the spacing distribution accuracy between the first metal plate 11 and the second metal plate 12 by arranging the adjusting pad 142. Optionally, the outer diameter of the circlip can be equal to the outer diameter of the first positioning sleeve 1411 and the second positioning sleeve 1412.

[0149] Preferably, as shown in Figures 6 to 10 The adjusting pad 142 has multiple size specifications, which can be understood as the size of the adjusting pad 142 in the first direction F1, for example, the size of the adjusting 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 adjusting pad 142.

[0150] In embodiments, preferably, as shown in Figure 9 The electrostatic dust collecting device can further comprise a protective frame, which can be arranged outside the dust collecting body to protect the dust collecting body, thereby reducing the probability of deformation of the first metal plate 11 and / or the second metal plate 12 due to collision.

[0151] Preferably, as shown in Figure 10 and Figure 10 The electrostatic dust collecting device can further comprise a control unit 3. Correspondingly, the protective frame can be provided with an embedded groove 24, and the control unit 3 can be arranged in the embedded groove 24. The first support 131 and the second support 132 are electrically connected to the control unit 3. In this way, the control unit of the electrostatic dust collecting device is integrated into the protective frame, which can effectively improve the neatness of the electrostatic dust collecting device.

[0152] Preferably, the control unit 3 can be treated by a glue sealing process, which can effectively improve the waterproofness of the control unit 3, so as to realize the washable function of the electrostatic dust collecting device. The glue sealing process can be an epoxy sealing process, which is a prior art in the field and will not be described here.

[0153] Optionally, as shown in Figure 10 The control unit 3 can be a PCB. Preferably, as shown in Figure 12 The PCB can be arranged on the opening of the embedded groove 24.

[0154] Preferably, the control unit 3 can have an output warning function, that is, when the electrostatic dust collecting device has an abnormal current output (for example, short circuit, open circuit, etc.), the control unit 3 can send an alarm signal. It should be noted that the output warning function is a prior art in the field of PCB and will not be described here.

[0155] Preferably, the electrostatic dust collecting device can further comprise an alarm unit, which can prompt the user to find the abnormality of the electrostatic dust collecting device in time when the control unit 3 sends an alarm signal.

[0156] Preferably, as shown in Figure 9 The alarm unit can comprise a normal working lamp 41 and a fault lamp 42 arranged on the protective frame. The normal working lamp 41 and the fault lamp 42 are in communication connection with the control unit 3. Specifically, when the electrostatic dust collecting device is in a normal working state, the normal working lamp 41 is always on. Once the control unit 3 sends an alarm signal, the normal working lamp 41 is turned off, and the fault lamp 42 is turned on. In this way, the user can find the abnormality of the electrostatic dust collecting device in time.

[0157] Preferably, as shown in Figure 10 and Figure 9As shown, the control unit 3 can include a direct current positive output end 31 and a direct current negative output end 32, a first one of the two first and second pillars 131 and 132 can be electrically connected to the direct current positive output end 31, and a second one of the two first and second pillars 131 and 132 can be electrically connected to the direct current negative output end 32.

[0158] Preferably, as shown in Figure 10 and Figures 7 to 10 , at least part of the two direct current positive and negative output ends 31 and 32 can be arranged on the surface of the cover body 21, so as to facilitate the connection of the plurality of electrostatic dust collection devices.

[0159] Preferably, the two direct current positive and negative output ends 31 and 32 are treated by lead-free tin spraying technology to increase the area of the two direct current positive and negative output ends 31 and 32, so that the control unit 3 can support simultaneous electrical connection with the plurality of first pillars 131 and the plurality of second pillars 132.

[0160] Preferably, the voltage between the two direct current positive and negative output ends 31 and 32 can be 12V-24V, and the dust collection main body structure can greatly reduce the gap between the two adjacent first and second metal plates 11 and 12, which makes the voltage between the first and second metal plates 11 and 12 between 12V-24V, which can meet the dust collection needs of the electrostatic dust collection device, effectively reducing the energy consumption of the electrostatic dust collection device, so that the existing 12V-24V low-voltage direct current power supply can meet the dust collection power supply needs of the electrostatic dust collection device, further facilitating the integration of the electrostatic dust collection device.

[0161] Optionally, as shown in the figure, the electrostatic dust collection device can further include a direct current power supply, which can be hidden in the embedded groove 24 to realize the power integration of the electrostatic dust collection device.

[0162] In an embodiment, preferably, as shown in Figure 9 , the protective frame includes two cover bodies 21 arranged on both sides of the dust collection main body in the first direction F1. The two ends of the pillar part are respectively inserted into the two cover bodies 21.

[0163] Preferably, as shown in Figure 10 and Figures 7 to 10 , the embedded groove 24 can be arranged in at least one of the two cover bodies 21 to facilitate the electrical connection of the control unit 3 with the first and second pillars 131 and 132.

[0164] Optionally, as shown in Figure 9As shown, the cover 21 can be in a box shape, in other words, a hollow space is formed inside the cover 21, on the one hand, facilitating the arrangement of the embedded groove 24; on the other hand, facilitating the insertion of the first and second pillars 131 and 132.

[0165] Preferably, as shown in the drawings, Figures 7 to 10 The cover 21 can be provided with a hole corresponding to the first and second pillars 131 and 132 of the dust collecting main body, which extends in the first direction F1, for inserting the first and second pillars 131 and 132.

[0166] Preferably, as shown in the drawings, Figure 7 As shown, the electrostatic dust collecting device can further include an insulating terminal 23, which can be optionally provided with a hole corresponding to the first and second pillars 131 and 132, which extends in the first direction F1, for inserting the first and second pillars 131 and 132. Figure 7 As shown, the first pillar 131 can be directly inserted into the cover 21, and the second pillar 132 can be inserted into the cover 21 through the insulating terminal 23, so as to effectively avoid short circuiting of the first and second pillars 131 and 132 through the cover 21. Alternatively, as shown in the drawings, the second pillar can be directly inserted into the cover, and the first pillar can be inserted into the cover through the insulating terminal.

[0167] Preferably, the insulating terminal 23 can be treated by a glue sealing process. In this case, the insulating terminal 23 is treated by a glue sealing process between the insulating terminal 23 and the cover 21, and between the insulating terminal 23 and the first or second pillar 131 or 132, so as to improve the waterproofness of the electrostatic dust collecting device, realize the water washing function of the electrostatic dust collecting device, and facilitate the cleaning and reuse of the electrostatic dust collecting device.

[0168] Preferably, as shown in the drawings, Figure 8 and Figure 7 As shown, a part of the insulating terminal 23 can extend into the hole in the first direction F1, and another part of the insulating terminal 23 can be clamped outside the hole, so as to limit the first terminal in the first direction F1 and ensure the insertion accuracy of the second pillar 132.

[0169] Preferably, as shown in the drawings, Figure 8 and Figures 7 to 9 For example, as shown in the drawings, in the first direction F1, the distance from the first metal plate 11 closest to the cover 21 where the insulating terminal 23 is located to the insulating terminal 23 (i.e. the value K shown in the drawings) is greater than or equal to the distance between the adjacent two first metal plates 11 and the second metal plate 12 (i.e. the value w shown in the drawings), so as to effectively ensure the safety distance between the cover 21 and the first metal plate 11, and further effectively avoid the occurrence of creeping between the cover 21 and the first / second metal plate.

[0170] It should be noted that the K value represents the distance from the closest one of the first metal plate 11 and the second metal plate 12 to the cover 21 where the insulating terminal 23 is located in the first direction F1, in other words, if the closest one of the first metal plate and the second metal plate to the cover where the insulating terminal is located in the first direction is the second metal plate, the K value is the distance between the second metal plate closest to the cover where the insulating terminal is located and the insulating terminal.

[0171] Preferably, as shown in Figure 9 The cover 21 is provided with a protrusion 211 extending in the second direction F2, which is arranged between two adjacent pillar portions, in other words, the protrusion 211 is arranged on both sides of the pillar portions (including the first pillar 131 and the second pillar 132) in the same row of the array, so that the creepage distance between the connection of the adjacent two rows of pillar portions on the cover 21 can be effectively increased, and the electrical connection safety of the cover 21 is ensured. That is, as shown in Figure 7 The protrusions 211 are arranged on the side of the cover 21 facing the dust collecting main body in the third direction F3, so that a groove extending in the second direction F2 is formed between the adjacent two protrusions 211, and the end of the pillar portion extends into the groove and is inserted into the cover 21, thereby ensuring the stability of the insertion of the cover 21 into the pillar portion and the safety of the electrical connection.

[0172] Preferably, as shown in Figure 8 And Figure 7 In the first direction F1, the distance from the first metal plate 11 closest to the cover 21 where the protrusion 211 is located to the protrusion 211 (i.e. the value E shown in the figure) 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. 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 cross section perpendicular to the surface of the first metal plate 11 / second metal plate 12 (i.e. the determined plane of the first direction F1 and the second direction F2) when the electrostatic dust collector is in use. In this way, the outflow of the airflow to be purified from the gap between the cover 21 and the first metal plate 11 closest to the cover 21 where the protrusion 211 is located (i.e. the airflow to be purified without purification by the electric field) can be effectively reduced, thereby effectively reducing the influence of the gap between the cover 21 and the first metal plate 11 closest to the cover 21 where the protrusion 211 is located on the purification efficiency of the electrostatic dust collector.

[0173] It should be noted that the E value represents the distance from the cover 21 where the protrusion 211 is located to the protrusion 211 in the first direction F1 of the one of the first metal plate 11 and the second metal plate 12 closest to the cover 21, that is, if the one of the first metal plate and the second metal plate closest to the cover in the first direction is the second metal plate, the E value is the distance from the protrusion 211 to the second metal plate closest to the cover where the protrusion 211 is located.

[0174] Preferably, as shown in Figure 8 and Figure 7 , the protrusion 211 can include a protruding portion 2111, the protrusion 211 is fixedly connected with the cover 21 via the protruding portion 2111, the protruding portion 2111 can be plate-shaped, and the protruding portion 2111 can be parallel to the plane determined by the first direction F1 and the second direction F2, so as to surround the groove extending in the second direction F2.

[0175] Preferably, as shown in Figure 8 and Figure 9 , the protrusion 211 can include an extension portion 2112, the extension portion 2112 is fixedly arranged at one end of the protruding portion 2111 opposite to the cover 21, and the extension portion 2112 can be parallel to the plane determined by the second direction F2 and the third direction F3, and the dimension of the extension portion 2112 in the third direction F3 exceeds the dimension of the protruding portion 2111 in the third direction F3, so as to further extend the creepage distance between the connection of the adjacent two rows of support portions on the cover 21, and ensure the electrical connection safety of the cover 21.

[0176] It should be noted that the protrusion 211 can include a middle protrusion and an edge protrusion, the middle protrusion can be arranged between the adjacent two rows of support portions, the extension portion 2112 of the middle protrusion can extend to both sides of the protruding portion 2111 along the third direction F3, so as to simultaneously extend the creepage distances on both sides of the middle protrusion; the edge protrusion can be arranged on both sides of the dust collection main body in the third direction F3, and the extension portion 2112 of the edge protrusion can extend from the protruding portion 2111 to one side of the dust collection main body along the third direction F3, so as to reduce the size of the cover 21 in the third direction F3, and improve the space utilization of the electrostatic dust collection device.

[0177] Optionally, as shown in Figure 10 and Figure 6 , the electrostatic dust collection device can further include a flow guide groove 25, the flow guide groove 25 can be arranged on the cover 21 and communicate with the hollow space of the cover 21, so that the liquid flowing into the cover 21 during the water washing process of the electrostatic dust collection device can be discharged in time through the flow guide groove 25, and the electrical safety of the electrostatic dust collection device is further improved.

[0178] In embodiments, preferably, as shown in Figure 9 、 Figure 10 and Figure 6 , the protective frame can further include side covers 22 arranged on both sides of the dust collecting body in the second direction F2. Specifically, the side covers 22 are provided with protective spaces, and at least part of the dust collecting body extends into the protective spaces to protect both ends of the dust collecting body in the second direction F2.

[0179] Preferably, as shown in Figure 6 , a creepage gap can be arranged between the side covers 22 and the dust collecting body, in other words, the side covers 22 are not in contact with the dust collecting body, so that dust is effectively prevented from accumulating in the side covers 22, causing the adjacent first metal plates 11 and second metal plates 12 to creep through the side plates.

[0180] Preferably, as shown in Figure 6 , the side covers 22 can include a shielding plate 221 and two connecting plates 222 connected to each other, the two connecting plates 222 are arranged on the same side of the shielding plate 221 in the second direction F2, and are respectively connected to both ends of the shielding plate 221 in the third direction F3, so that the side covers 22 surround the protective spaces.

[0181] Preferably, as shown in Figure 9 , the size of the connecting plates 222 in the second direction F2 (i.e. the size of the protective spaces in the second direction F2) is c, the minimum distance from the shielding plate 221 to the dust collecting body in the second direction F2 is z, the face wind speed between the first metal plates 11 and the second metal plates 12 is v, and the distance between the adjacent first metal plates 11 and the second metal plates 12 in the first direction F1 is w. Wherein, c≥z+1.5v, and z≥1.5w, so that on the one hand, the dust collecting body can extend into the protective spaces, and on the other hand, the creepage gap between the side covers 22 and the dust collecting body meets the safety distance.

[0182] Preferably, as shown in Figure 10 and Figure 11 , the side covers 22 are connected to the cover body 21 through the connecting plates 222 to form the protective frame.

[0183] Referring to Figure 12 and Figure 12 , the embodiments of the second aspect of the present application also provide an electrostatic dust collecting system, which includes the electrostatic dust collecting device of any of the above embodiments, and thus has all the beneficial technical effects of the electrostatic dust collecting device, which will not be described here.

[0184] Preferably, as shown in Figure 12As shown, the electrostatic dust removal system can include at least one electrostatic dust collecting unit, which can include a plurality of electrostatic dust collecting devices, and the plurality of electrostatic dust collecting devices can be connected in series or in parallel via the respective direct current positive output end 31 and the direct current negative output end 32 to realize the common work of the plurality of electrostatic dust collecting devices.

[0185] Preferably, as shown, the electrostatic dust removal system can further include a warning device 5, which is in communication connection with each electrostatic dust collecting device in the electrostatic dust removal system, and once the control part 3 of a certain or several electrostatic dust collecting devices in the electrostatic dust collecting unit sends an alarm signal, the warning device 5 sends an alarm, and the user can quickly lock the malfunctioning electrostatic dust collecting unit through the warning device 5, and then quickly lock the malfunctioning electrostatic dust collecting device by checking the fault light 42 of the electrostatic dust collecting device in the electrostatic dust collecting unit one by one. Figure 11 Preferably, the electrostatic dust removal system can further include an electrostatic discharge device, wherein the electrostatic discharge device and the electrostatic dust collecting device can be separately arranged, so that, on the one hand, the space of the electrostatic dust collecting device is further compressed, and the appearance size of the electrostatic dust collecting device can be further close to the general size of the Hepa filter screen, thereby improving the adaptability of the electrostatic dust collecting device; on the other hand, the separate arrangement of the electrostatic discharge device and the electrostatic dust collecting device makes the installation mode of the electrostatic dust removal system more flexible, such as

[0186] As shown, the electrostatic dust removal system can include four different installation forms, for example, Figure 11 (1) As shown, the separate arrangement of the electrostatic discharge device and the electrostatic dust collecting device of the electrostatic dust removal system can make the electrostatic dust removal device adapt to a long air duct, and specifically, the electrostatic discharge device and the electrostatic dust collecting device can be arranged at the two ends of the long air duct; for example, Figure 11 (2) As shown, the separate arrangement of the electrostatic discharge device and the electrostatic dust collecting device of the electrostatic dust removal system can make the electrostatic discharge device and the electrostatic dust collecting device have different appearance sizes, so that the electrostatic discharge device and the electrostatic dust collecting device adapt to the sizes at different positions of the variable-diameter air duct; for example, Figure 11 (3) As shown, the separate arrangement of the electrostatic discharge device and the electrostatic dust collecting device of the electrostatic dust removal system can make the electrostatic dust removal device adapt to a complex air duct pipeline (the air duct of a large central air conditioner), and the electrostatic discharge device and the electrostatic dust collecting device can be arranged at the air inlet and the air outlet of the complex air duct pipeline; for example, Figure 11 (4) As shown, the electrostatic discharge device and the electrostatic dust collecting device can also be arranged side by side, and when cleaning is needed, the electrostatic discharge device and the electrostatic dust collecting device can be disassembled and cleaned separately. Figure 14

[0187] ​Preferably, the above-mentioned electrostatic discharge device can be a needle-point discharge device, a carbon brush discharge device, or a wire discharge device. For example, the ion generator described in Chinese patent document CN117767118A.

[0188] Referring to Figure 8 The third aspect of the embodiments of the present application also provides a design method of an electrostatic precipitator, which is used for designing the electrostatic precipitator described in any of the above-mentioned embodiments, and thus has all the beneficial technical effects of the electrostatic precipitator, which will not be described here again.

[0189] S01 determines the size of the fin plate 10, i.e., the size of the fin plate 10 in the second direction F2 and the third direction F3. It should be noted that the size of the fin plate 10 in the second direction F2 and the third direction F3 can be designed according to the size of the electrostatic precipitator.

[0190] S02 determines the position of the holes in the placement area 104 of the fin plate, so that the holes in the placement area 104 are distributed in an array, so that any row and any column in the placement area 104 are arranged in an alternating manner of the first holes and the second holes, the number of rows and the number of columns of the holes in the placement area are determined according to the size of the fin plate 10, and the row pitch and the column pitch of the holes are determined.

[0191] Optionally, the first holes can be the avoidance holes 102, and the second holes can be the connection holes 101.

[0192] Preferably, the row pitch of the array is wherein D is the size of the fin plate 10 in the third direction F3, and n is the sum of the number of the connection holes 101 and the avoidance holes 102 included in the array.

[0193] Preferably, the column pitch m of the array is 实 ≤m0, wherein m0 is the hole pitch between the adjacent two columns in the placement area 104 when the deformation amount of the midpoint of the fin plate 10 in the first direction F1 is s=0.5w under the condition that a pressure of 2 Newton is applied to the midpoint of the fin plate 10 along the first direction F1 between the adjacent two columns.

[0194] S021 designs the encryption area 105, i.e., at least one column of the connection holes 101 and the avoidance holes 102 arranged alternately in the third direction F3 is designed at both ends of the fin plate 10 in the second direction F2, so that the row pitch of the encryption area 105 is half of the row pitch of the placement area 104.

[0195] S03 design the structure of the dust collecting main body, divide the fin plate into the first metal plate 11 and the second metal plate 12, so that the second metal plate 12 is flipped (1+2N) ×180° of the structure of the first metal plate 11, wherein N is an integer, so that the first metal plate 11 and the second metal plate 12 are parallel and alternately arranged along the first direction F1, so that the support portion penetrates the first metal plate 11 and the second metal plate 12 along the first direction via the avoiding hole 102 and the connecting hole 101, and so that the positioning assembly 14 is sleeved on the outer side of the support portion to support the adjacent two first metal plates 11 or the adjacent two second metal plates 12 through the positioning assembly 14 to form the dust collecting main body.

[0196] S04 determine the size of the support portion, the positioning assembly 14, the hole diameter of the connecting hole 101 and the hole diameter of the avoiding hole 102 of the electrostatic dust collecting device, determine the size of the support portion and the positioning assembly 14 in the first direction F1, so that the hole diameter of the avoiding hole 102 is greater than the outer diameter of the positioning assembly 14, the hole diameter of the connecting hole 101 is less than the outer diameter of the positioning assembly 14, and is greater than or equal to the outer diameter of the support portion.

[0197] Optionally, the electrostatic dust collecting device design method can further include S041 determining the layer plate spacing, so that the distance w between the adjacent two first metal plates 11 and the second metal plate 12 in the first direction F1 is 1.5mm-2.7mm, and the size of the first positioning sleeve 1411 and the second positioning sleeve 1412 in the first direction F1 is converted, specifically, the size of the first positioning sleeve 1411 and the second positioning sleeve 1412 in the first direction F1 is 2w.

[0198] Preferably, the electrostatic dust collecting device design method can further include S042 designing the adjusting pad 142, assembling the dust collecting main body, and selecting the size of the adjusting pad 142 and confirming the setting position of the adjusting pad 142 according to the cumulative tolerance of the first positioning sleeve 1411 and the first support 131 and the second positioning sleeve 1412 and the second support 132, on the one hand, to ensure the uniformity of the layer plate spacing distribution at any position of the adjacent first metal plate 11 and the second metal plate 12 (that is, the layer plate spacing at each position between the same layer plate is equal); on the other hand, to ensure that the distance between each adjacent first metal plate 11 and second metal plate 12 is equal.

[0199] S05 design the structure of the protection frame, and design the structure and size of the protection frame which can be framed outside the dust collecting main body according to the size of the dust collecting main body.

[0200] Preferably, the electrostatic dust collecting device design method can further include S051 designing the structure of the cover body 21, setting the insertion hole structure of the cover body 21 according to the size of the dust collecting main body, and determining the size of the convex rib 211 and the insulating terminal 23.

[0201] Preferably, the distance from the closest one of the first metal plates 11 and the second metal plates 12 to the cover 21 in the first direction F1 (i.e. Figure 8 the distance between two adjacent first metal plates 11 and second metal plates 12 (i.e. Figure 8 the distance between two adjacent first metal plates 11 and second metal plates 12 (i.e.

[0202] Preferably, the distance from the closest one of the first metal plates 11 and the second metal plates 12 to the cover 21 in the first direction F1 (i.e. Figure 6 the distance between two adjacent first metal plates 11 and second metal plates 12 (i.e.

[0203] Preferably, the method for designing the electrostatic precipitation device further comprises S052: designing the structure of the side cover 22 such that the dust collection main body can extend into the protection space of the side cover 22 while an anti-creep gap is provided between the side cover 22 and the dust collection main body.

[0204] Preferably, c≥z+1.5v, and z≥1.5w, wherein, as shown in ​ c is the size of the protection space in the second direction F2, z is the minimum distance from the shielding plate 221 to the dust collection main body in the second direction F2, v is the face wind speed between the first metal plates 11 and the second metal plates 12, and w is the distance between two adjacent first metal plates 11 and second metal plates 12 in the first direction F1.

[0205] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrostatic dust collector characterized by comprising: The dust collecting device comprises a dust collecting main body, the dust collecting main body comprises a first metal plate, a second metal plate, a support part and a positioning assembly; The support part comprises a first support for connecting with a first polarity and a second support for connecting with a second polarity; The first metal plate and the second metal plate are both parallel and arranged alternately along a first direction, the first support and the second support both penetrate the first metal plate and the second metal plate along the first direction, and the first support is electrically connected with the first metal plate, and the second support is electrically connected with the second metal plate; The positioning assembly comprises a first positioning part and a second positioning part, the first positioning part is sleeved outside the first support, two adjacent first metal plates are supported through the first positioning part, the second positioning part is sleeved outside the second support, and two adjacent second metal plates are supported through the second positioning part; The first positioning part is a first positioning sleeve, and the second positioning part is a second positioning sleeve; The positioning assembly further comprises an adjusting part, the adjusting part can be sleeved outside the support part to adjust the distance between two adjacent first metal plates and second metal plates; The adjusting part comprises a coarse adjustment block, which can be arranged at both ends of the dust collecting main body in the first direction to compensate for the cumulative tolerance of the positioning assembly in the first direction, and an adjusting 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; Further comprising a fin plate, the fin plate is provided with an avoiding hole and a connecting hole penetrating the fin plate along the first direction, the fin plate is provided with a placement area, the connecting holes and the avoiding holes in the placement area are arranged in an array, both ends of the fin plate in a second direction are respectively provided with an encryption area, and the part of the fin plate other than the encryption area is the placement area, the encryption area is provided with at least one column of connecting holes and avoiding holes arranged alternately along a third direction, and the distance between two adjacent rows of holes in the encryption area in the third direction is equal to half of the distance between two adjacent rows of holes in the placement area in the third direction. Wherein, two perpendicular directions in a plane parallel to the first metal plate and the second metal plate are defined as the second direction and the third direction, and a direction perpendicular to the first metal plate and the second metal plate is defined as the first direction.

2. The electrostatic dust collecting device according to claim 1, wherein In the first direction, the distance between two adjacent first metal plates and the second metal plate is 1.5mm-2.7mm; And / or, the size of the first metal plate and the second metal plate in the third direction is 55mm, and the third direction is perpendicular to the first direction.

3. The electrostatic dust collecting device according to claim 1, wherein The support part can penetrate the avoiding hole and the connecting hole respectively, and the positioning assembly can penetrate the avoiding hole; The aperture of the avoiding hole is greater than the outer diameter of the positioning assembly; The aperture of the connecting hole is less than the outer diameter of the positioning assembly and greater than or equal to the outer diameter of the support part.

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

5. The electrostatic dust collector according to claim 4, wherein at least part of both the connecting hole and the avoiding hole on the fin plate is 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 avoiding hole and the connecting hole.

6. The electrostatic dust collector according to claim 5, wherein the fin plate extends along a second direction, the second direction being perpendicular to the first direction; any row of the array extends along the second direction, the number of rows of the array is even, and the rows of the array are spaced apart in a third direction, the third direction being perpendicular to the second direction; a center line of the array in the third direction coincides with a center line of the fin plate in the third direction.

7. The electrostatic dust collector according to claim 6, wherein a distance between two adjacent rows in the array in the third direction is defined as d, a size of the fin plate in the third direction is defined as D, and a total number of the connecting hole and the avoiding hole contained in the array is defined as n.

8. The electrostatic dust collector according to claim 6, wherein a distance between two adjacent columns in the array in the second direction is defined as m; a deformation amount of the midpoint of the fin plate in the first direction is s when a pressure of 2 Newton is applied to the midpoint between two adjacent columns of the fin plate along the first direction; the value of m is repeatedly tested to obtain the value of s until s=0.5w, and the distance between two adjacent columns in the array in the second direction is m0 in this state; 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 flipped by (1+2N)×180°, where N is an integer. wherein .

10. The electrostatic dust collector according to claim 1, wherein both the coarse adjustment block and the adjustment pad have multiple size specifications; a size of the coarse adjustment block in the first direction is 1mm, 2mm, 3mm, 4mm or 5mm; a size of the adjustment pad in the first direction is 0.1mm, 0.2mm, 0.3mm, 0.4mm or 0.5mm. Further comprising a protective frame and a control part, the protective frame is arranged outside the dust collecting main body, the protective frame is provided with an embedded slot, the control part is arranged in the embedded slot, and the first support and the second support are respectively electrically connected with the control part. such that in said second direction, and within said array, the actual pitch m between two adjacent columns 实 ≤ m0.

9. An electrostatic precipitator according to any one of claims 3 to 8, wherein The protective frame comprises two cover bodies respectively arranged on both sides of the dust collecting main body in the first direction; both ends of the support part are respectively inserted into the two cover bodies.

13. The electrostatic dust collector according to claim 1, wherein ​ ​ 11. An electrostatic precipitator according to claim 1, wherein ​ 12. An electrostatic precipitator according to claim 11, wherein ​ ​ ​ Two ends of the pillar part in the first direction are provided with limiting parts to limit the positions of the first metal plate, the second metal plate and the positioning assembly penetrating the pillar part; At least one of the two limiting parts provided on the same pillar part is movably connected with the pillar part to adjust the compression degree between the first metal plate and the positioning assembly and between the second metal plate and the positioning assembly penetrating the pillar part.

14. An electrostatic precipitator according to claim 12, wherein Further comprising an insulating terminal, a first one of the two first pillar and the second pillar is inserted into the cover body via the insulating terminal, and a second one of the two first pillar and the second pillar is directly inserted into the cover body; And / or, the embedding groove is provided in at least one of the two cover bodies; And / or, the control part is processed via a glue sealing process; And / or, the control part comprises a direct current positive output end and a direct current negative output end, a first one of the two first pillar and the second pillar is electrically connected with the direct current positive output end, and a second one of the two first pillar and the second pillar is electrically connected with the direct current negative output end, and the voltage between the direct current positive output end and the direct current negative output end is 12V-24V.

15. The electrostatic dust collecting device according to claim 14, wherein The insulating terminal is processed via a glue sealing process; And / or, In the first direction, the distance from a cover body where the insulating terminal is located to the insulating terminal of a nearest one of the two first metal plates and the second metal plates is greater than or equal to the distance between two adjacent first metal plates and second metal plates.

16. An electrostatic precipitator according to claim 12, wherein The protective frame further comprises side covers provided on both sides of the dust collecting main body in a second direction perpendicular to the first direction; The side covers are provided with protective spaces into which at least part of the dust collecting main body extends; A creepage gap is provided between the side covers and the dust collecting main body.

17. The electrostatic dust collecting device according to claim 16, wherein The side covers comprise a shielding plate and two connecting plates connected with each other, the two connecting plates are provided on the same side of the shielding plate in the second direction and are respectively connected with both ends of the shielding plate in a third direction perpendicular to the first direction and the second direction, so that the side covers enclose the protective spaces; And / or, the side covers are connected with the cover bodies via the connecting plates.

18. An electrostatic precipitator according to claim 1, wherein Between the two adjacent first metal plates and second metal plates, other parts except the pillar part and the positioning assembly are hollow structures.

19. An electrostatic precipitation system characterized by, The electrostatic dust collecting device according to any one of claims 1-18.

20. The electrostatic precipitation system of claim 19, wherein, Further comprising an electrostatic discharge device, the electrostatic discharge device and the electrostatic dust collecting device are separately provided.

21. The electrostatic precipitation system of claim 20, wherein, The electrostatic discharge device is a needle point discharge device, a carbon brush discharge device or a wire discharge device.

22. A method of designing an electrostatic precipitator, characterized by: The steps include: Determining the size of the fin plate of the electrostatic dust collecting device, determining the size of the fin plate in the second direction and the third direction; The positions of the holes in the arrangement region of the fin plate are determined such that the holes in the arrangement region are distributed in an array, so that any row and any column in the arrangement region are provided with the first holes and the second holes alternately arranged, the number of rows and the number of columns of the holes in the arrangement region are determined according to the size of the fin plate, and the row pitch and the column pitch are determined, and after the step of determining the positions of the holes in the arrangement region of the fin plate, an encryption region is designed, at least one column of the first holes and the second holes alternately arranged in the third direction is designed at both ends of the fin plate in the second direction, so that the row pitch in the encryption region is half of the row pitch in the arrangement region; the part of the fin plate other than the encryption region is the arrangement region; The structure of the dust collecting main body is designed to divide the fin plate into a first metal plate and a second metal plate, so that the second metal plate is a structure of the first metal plate flipped by (1+2N)×180°, where N is an integer, so that the first metal plate and the second metal plate are parallel and alternately arranged in the first direction, so that the support portion penetrates the first metal plate and the second metal plate via the first holes and the second holes in the first direction, and so that the positioning assembly is sleeved on the outside of the support portion to support adjacent two first metal plates or adjacent two second metal plates by the positioning assembly to form the dust collecting main body; The sizes of the support portion, the positioning assembly, the hole diameter of the first hole, and the hole diameter of the second hole of the electrostatic dust collecting device are determined, the sizes of the support portion and the positioning assembly in the first direction are determined, so that the hole diameter of the first hole is greater than the outer diameter of the positioning assembly, the hole diameter of the second hole is less than the outer diameter of the positioning assembly, and is greater than or equal to the outer diameter of the support portion; The structure of the protection frame is designed according to the size of the dust collecting main body, and the structure and size of the protection frame capable of being sleeved on the outside of the dust collecting main body are designed. Wherein, two directions perpendicular to each other on the plane parallel to the first metal plate and the second metal plate are defined as the second direction and the third direction, and the direction perpendicular to the first metal plate and the second metal plate is defined as the first direction.

23. The electrostatic dust collecting device design method according to claim 22, wherein, The pitch of the rows of holes of the array The pitch of the columns of holes of the array m 实 ≤ m0, Wherein, D is the size of the fin plate in the third direction, n is the sum of the number of the first holes and the second holes contained in the array, m0 is the pitch between adjacent two columns in the arrangement region when the deformation amount of the midpoint of the fin plate in the first direction is s=0.5w under the condition that a pressure of 2 Newton is applied to the midpoint of the fin plate in the first direction, and the distance between adjacent two first metal plates and the second metal plate is w.

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