Electrostatic dust collector and electrostatic dust collection system
By designing a backward-facing plate skeleton and closed lower gray channel structure in the electrostatic dust collector, combined with the vibration component, the problem of difficulty in capturing secondary dust in traditional anode plates is solved, achieving more efficient dust removal and dust collection.
Patent Information
- Application Number
- CN202422134462.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The dust suppression structure at both ends of the traditional anode plate is small in size, making it difficult to effectively capture secondary dust, resulting in the dust concentration emission of the electrocutter exceeding the standard.
An electrostatic dust collector is designed. The anode plate is composed of two plate frames arranged and fitted toward the back. Each plate frame has an open dust trap at both ends, and the middle part is recessed inward or protruded outward to form a closed lower ash channel, and the anode plate is vibrated through the vibration module to promote dust drop.
It improves the ability to capture secondary dust, reduces dust concentration emissions, enhances the dust removal effect, and effectively collects captured dust.
Smart Images
Figure CN223234038U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of dust removal, and in particular to an electrostatic precipitator and an electrostatic precipitator system. Background Art
[0002] The electrostatic precipitator is equipped with a cathode wire (also known as a corona electrode) and an anode plate. After the power is turned on and the voltage is increased, the cathode wire generates corona ionization, so that the charged ions fill the entire effective space. When they collide with dust particles during movement, the dust particles become negatively charged. Under the action of the electric field force, the charged dust particles move toward the anode plate. After reaching the anode plate, they release the electrons they carry, and the dust particles are deposited on the anode plate, resulting in purified gas. After use, a thick layer of dust accumulates on the anode plate. The anode plate needs to be vibrated regularly so that smoke and dust with a certain thickness fall into the ash hopper below the electrostatic precipitator structure under the dual action of its own weight and vibration, ensuring the dust removal effect of the electrostatic precipitator.
[0003] The dust layer accumulated on the anode plate is beaten to form block-shaped dust and falls down. During the falling process, it slowly disperses from the block due to the action of gravity, and granular dust will be generated when it disperses. Moreover, when the block-shaped dust falls into the ash hopper, it will collide with the inner wall of the ash hopper or the accumulated ash in the hopper, which will also generate dust.
[0004] The dust suppression structures at both ends of the traditional anode plate are small in size and can only capture dust on one side of the anode plate. It is difficult to capture a large number of dust particles. Driven by the electric field wind, the dust flows toward the air outlet until it is discharged from the air outlet, causing the dust concentration emission of the electrostatic precipitator to exceed the standard. Utility Model Content
[0005] In view of this, an object of the present invention is to provide an electrostatic precipitator and an electrostatic precipitator system.
[0006] In a first aspect, an embodiment of the present invention provides an electrostatic precipitator, comprising a plurality of anode plates and a plurality of cathode wires, wherein the plurality of anode plates and the plurality of cathode wires are alternately and spaced apart in a direction perpendicular to an airflow direction;
[0007] Each anode plate includes two plate frames arranged back to back and attached to each other, and both ends of each plate frame have a dust-catching portion with an opening facing inward;
[0008] The middle parts of the two electrode plate frames are concave inwards or convex outwards, and the two electrode plate frames are enclosed to form a closed ash discharge channel.
[0009] In combination with the first aspect, the plate skeleton includes:
[0010] First frame;
[0011] There are two second frames, connected to both ends of the first frame respectively;
[0012] A third frame body, one end of which is connected to the second frame body via a connecting plate, and the other end of which is connected to the dust collecting portion;
[0013] The first frame, the second frame, the third frame, the connecting plate and the dust collecting part are integrally formed.
[0014] In combination with the first aspect, the distance between the first frame and the plane where the two plate skeletons are attached is a first distance; the distance between the second frame and the plane where the two plate skeletons are attached is a second distance; the first distance is greater than the second distance.
[0015] In combination with the first aspect, the two plate frame bonding surfaces are spaced apart from the plane where the second frame is located by a set distance.
[0016] In combination with the first aspect, one end of the anode plate is fixedly suspended by a row of anode suspension beams, and a rapping assembly is provided at the other end of the anode plate. The output end of the rapping assembly contacts the anode plate for rapping the anode plate.
[0017] In combination with the first aspect, the connecting plate has an arc-shaped structure.
[0018] In combination with the first aspect, the size of the windbreak ditch is 60-180 mm in the direction perpendicular to the airflow.
[0019] In combination with the first aspect, the size of the anode plate along the airflow direction is 380-750 mm.
[0020] In combination with the first aspect, the anode plate is rolled from a steel plate with a thickness of 1.0 mm to 1.8 mm.
[0021] In a second aspect, the present application provides an electrostatic precipitator system, comprising the electrostatic precipitator as described above.
[0022] The embodiments of the present invention bring the following beneficial effects:
[0023] An embodiment of the utility model provides an electrostatic precipitator and an electrostatic precipitator system, the electrostatic precipitator includes a plurality of anode plates and a plurality of cathode wires, and the plurality of anode plates and the plurality of cathode wires are alternately and spaced apart in a direction perpendicular to the airflow; each anode plate includes two electrode plate frames that are arranged back to back and fitted together, and both ends of each electrode plate frame have a dust-catching portion with an opening facing inward; the middle parts of the two electrode plate frames are concave inward or convex outward, and the two electrode plate frames are enclosed to form a closed ash-discharging channel.
[0024] The anode plate in the electrostatic precipitator provided by the present invention comprises two back-to-back, bonded electrode frames. Because each frame has dust-catching sections at both ends, compared to conventional double-grooved electrode plates, the anode plate can capture dust from both sides of the frame, thereby improving the capture of secondary dust and enhancing dust removal effectiveness. Furthermore, the closed ash channel formed by the two frame frames effectively collects captured dust.
[0025] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.
[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative work.
[0028] Figure 1 A schematic diagram of the structure of the anode plate provided in this application;
[0029] Figure 2 This is a schematic diagram of the structure of the electrode skeleton provided in this application.
[0030] The reference numerals are as follows:
[0031] 1-plate frame, 11-first frame, 12-second frame, 13-third frame, 14-connecting plate, 2-dust collecting part, 3-ash lowering channel, 4-ash lowering window. DETAILED DESCRIPTION
[0032] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.
[0033] To facilitate understanding of this embodiment, the application scenarios and design concepts of the embodiment of this application are briefly introduced below.
[0034] The dust suppression structures at both ends of the traditional anode plate are small in size and asymmetrical on both sides, so only one side of the anode plate can capture dust particles, resulting in limited dust removal effect and excessive dust concentration emissions from the electrostatic precipitator.
[0035] Based on this, an embodiment of the present application provides an electrostatic precipitator and an electrostatic precipitator system.
[0036] Example 1
[0037] The present application provides an electrostatic precipitator, comprising a plurality of anode plates and a plurality of cathode wires, wherein the plurality of anode plates and the plurality of cathode wires are alternately and spaced apart in a direction perpendicular to the airflow; Figure 1 As shown, each anode plate comprises two plate frames 1 arranged back to back and fitted together, each plate frame 1 has a dust collecting portion 2 with an opening inward at both ends; the middle portions of the two plate frames 1 are inwardly concave or outwardly convex (combined with Figure 1 As shown, the middle portion of the electrode frame 1 is concave inwards), and the two electrode frames 1 are combined to form a closed ash discharge channel 3.
[0038] The traditional electrode plate with a single windproof ditch is equivalent to a electrode frame 1 in this application. The structure is an open structure. The single-sided windproof ditch is used to capture dust on one side of the electrode body. The secondary dust capture effect is limited. The anode plate in the electrostatic precipitator provided by this application includes two electrode frames 1 arranged back to back and bonded. Since each electrode frame 1 has a dust-catching portion 2 at both ends, compared with the traditional electrode plate with a single-sided windproof ditch, it can capture dust on both sides of the electrode frame, thereby improving the secondary dust capture ability and improving the dust removal effect. In addition, the closed ash lowering channel 3 enclosed by the two electrode frames 1 can effectively collect the captured dust.
[0039] In combination with the first aspect, an ash discharge window 4 is provided on the electrode frame 1 ; and the ash discharge channel 3 is communicated with the ash discharge window 4 provided on the electrode frame 1 .
[0040] When dust is captured on the outer surface of the plate frame 1, it falls under the influence of gravity through the dust collecting portion 2 and the ash drop window 4 into the ash drop channel 3 formed by the two plate frames 1. The dust entering the ash drop channel 3 is not washed away by the flue gas, resulting in less secondary dust.
[0041] It can be understood that one side of the ash lowering window 4 is fixed on the pole plate frame 1, and the ash lowering window 4 is obtained by rolling the pole plate frame 1. The angle between the ash lowering window 4 and the plane where the pole plate frame 1 is located is usually an acute angle. When the flue gas flows, the ash lowering window 4 can block the influence of the flue gas flow on the dust adsorbed on the pole plate frame 1, and guide the dust to the internal ash lowering channel 3 based on the action of gravity under its guiding action. Preferably, the angle between the ash lowering window 4 and the plane where the pole plate frame 1 is located is 10゜-30゜. The end face shape of the ash lowering window 4 can be arbitrary, and considering the difficulty of production, it is preferably semicircular or rectangular. In this embodiment, the end face shape of the ash lowering channel 3 is rectangular.
[0042] In combination with the first aspect, the electrode plate skeleton 1 includes a first frame 11 , a second frame 12 and a third frame 13 .
[0043] refer to Figure 2 As shown, there are two second frames 12 , which are connected to both ends of the first frame 11 respectively.
[0044] One end of the third frame 13 is connected to the second frame 12 via a connecting plate 14 , and the other end is connected to the dust collecting portion 2 .
[0045] The first frame 11 , the second frame 12 , the third frame 13 , the connecting plate 14 and the dust collecting portion 2 are integrally formed.
[0046] In this embodiment, the plate skeleton 1 has a completely axisymmetric structure, with the centerline of the first frame 11 as the axis, and two second frames 12 and two third frames 13 symmetrically arranged on either side of the axis. The third frame 13 is also connected to the dust catcher 2. The first frame 11, second frame 12, third frame 13, connecting plate 14, and dust catcher 2 are integrally formed. This provides the plate skeleton 1 with high overall rigidity and excellent force transmission, thereby enhancing the effectiveness of cleaning accumulated dust under vibration.
[0047] In combination with the first aspect, the distance between the first frame 11 and the plane where the two plate frames 1 are attached is a first distance; the distance between the second frame 12 and the plane where the two plate frames 1 are attached is a second distance; the first distance is greater than the second distance.
[0048] The plane where the two plate frames 1 are bonded is the first plane (combined Figure 1 、 Figure 2 The first plane shown is the outer side surface of the third frame 13), the distance between the first frame 11 and the first plane is a first distance; the distance between the second frame 12 and the first plane is a second distance; the first distance is smaller than the second distance, that is, the inward depression at the center of the plate skeleton 1 is smaller than the inward depression of the second frame 12, so that the axial cross-sectional area of the ash lowering channel 3 will change, which is beneficial to collecting dust.
[0049] In combination with the first aspect, the bonding surfaces of the two electrode skeletons 1 are spaced apart from the plane where the second frame 12 is located by a set distance.
[0050] By adjusting the set distance, the axial size of the ash lowering channel 3 can be adjusted. The second frame 12 is connected to one end of the third frame 13 through the connecting plate 14, and the other end of the third frame 13 is connected to the dust collecting part 2. Figure 2 Inclined plate shown.
[0051] In combination with the first aspect, the connecting plate 14 is an arc-shaped structure (not shown in the figure), connecting the third frame 13 and the second frame 12 with an arc transition.
[0052] In combination with the first aspect, one end of the anode plate is fixedly suspended by a row of anode suspension beams, and a rapping assembly is provided at the other end of the anode plate. The output end of the rapping assembly contacts the anode plate for rapping the anode plate.
[0053] The anode plate is vibrated by the vibrating assembly to vibrate the dust accumulated on the anode plate into blocks, which fall under the action of gravity and fall from the ash lowering window 4 to the ash lowering channel 3. The dust flakes entering the ash lowering channel 3 are sucked into the internal ash lowering channel 3 by the flue gas flow during free fall, and the floating dust forms secondary dust when the anode plate is lifted up by the vibration and is captured by the dust collecting parts 2 at both ends of the plate frame 1, so as to improve the suppression effect of secondary dust.
[0054] It can be understood that the rapping assembly generally includes a rapping motor, a transmission member and a rapping hammer. The rapping motor generates a driving force, which drives the rapping hammer to rappe the anode suspension beam under the transmission action of the transmission member, thereby achieving the rapping effect on the anode plate.
[0055] In combination with the first aspect, the dimension of the dust collecting portion 2 perpendicular to the airflow direction is 60-180 mm.
[0056] Typically, the anode plate measures 380-750mm along the airflow direction, and the windbreak trench typically measures 25mm or less perpendicular to the airflow direction. In the present embodiment, however, the dust catcher 2 measures 60-180mm perpendicular to the airflow direction, significantly larger than conventional windbreak trenches, effectively expanding the capture area for secondary dust.
[0057] In combination with the first aspect, the size of the anode plate along the airflow direction is 380-750 mm.
[0058] In combination with the first aspect, the anode plate is rolled from a steel plate with a thickness of 1.0 mm to 1.8 mm.
[0059] In a second aspect, the present application provides an electrostatic precipitator system, comprising the electrostatic precipitator as described above.
[0060] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems and devices can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.
[0061] In addition, in the description of the embodiments of this application, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0062] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0063] Finally, it should be noted that the above embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art who is familiar with the technical field can still modify the technical solutions described in the above embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate from the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.
Claims
1. An electrostatic precipitator, characterized in that: The anode plates and cathode wires are arranged alternately and at intervals perpendicular to the airflow direction. Each of the anode plates comprises two plate frames arranged back to back and bonded together, and both ends of each plate frame have a dust-catching portion with an opening facing inward; The middle parts of the two electrode plate frames are concave inward or convex outward, and the two electrode plate frames are enclosed to form a closed ash discharge channel.
2. The electrostatic precipitator according to claim 1, characterized in that The plate skeleton comprises: First frame; There are two second frames, connected to both ends of the first frame respectively; a third frame, one end of which is connected to the second frame via a connecting plate, and the other end of which is connected to the dust collecting portion; The first frame, the second frame, the third frame, the connecting plate and the dust collecting portion are integrally formed.
3. The electrostatic precipitator according to claim 2, characterized in that The distance between the first frame and the plane where the two plate frame bonding surfaces are located is a first distance; the distance between the second frame and the plane where the two plate frame bonding surfaces are located is a second distance; the first distance is greater than the second distance.
4. The electrostatic precipitator according to claim 2, characterized in that The two plate frame bonding surfaces are spaced apart from the plane where the second frame is located by a set distance.
5. The electrostatic precipitator according to claim 2, characterized in that One end of the anode plate is fixedly suspended by a row of anode suspension beams, and a rapping assembly is provided at the other end of the anode plate. The output end of the rapping assembly contacts the anode plate for rapping the anode plate.
6. The electrostatic precipitator according to claim 2, characterized in that The connecting plate is an arc-shaped structure.
7. The electrostatic precipitator according to claim 2, characterized in that The size of the dust collecting portion is 60-180 mm in a direction perpendicular to the airflow direction.
8. The electrostatic precipitator according to claim 2, characterized in that The size of the anode plate along the air flow direction is 380-750 mm.
9. The electrostatic precipitator according to claim 2, characterized in that The anode plate is rolled from a steel plate with a thickness of 1.0 mm to 1.8 mm.
10. An electrostatic dust removal system, characterized in that: Comprising the electrostatic precipitator according to any one of claims 1 to 9.