A clamping plate, a cathode plate and a flue gas purification device

Abstract

The present application relates to the technical field of flue gas purification device, and particularly discloses a clamp plate, a cathode plate and a flue gas purification device. The present application provides a clamp plate, which is used for assembling a cathode plate. The side wall of the clamp plate is bent to form a first bending part. After the clamp plate is bent to form the first bending part, the bending resistance of the clamp plate is increased, and the clamp plate can still maintain stability under the blowing of air flow. The cathode plate is formed by symmetrically and reversely connecting two clamp plates, and the cathode plate has all advantages of the clamp plate. The flue gas purification device is provided with the cathode plate, and the flue gas purification device has all advantages of the cathode plate and the clamp plate.

Description

Technical Field

[0001] This invention relates to the field of flue gas purification equipment technology, and in particular to a clamping plate, a cathode plate, and a flue gas purification device. Background Technology

[0002] In electrostatic flue gas purification equipment, a high-voltage electric field is formed between the cathode plate and the anode plate. Corona discharge occurs at the cathode, the flue gas is ionized, and the negatively charged flue gas moves towards the anode plate under the action of the electric field and is deposited on the anode plate.

[0003] However, in some flue gas purification environments, the flue gas has a certain flow velocity. During the flow, the flue gas will impact the cathode plate. The relatively thin cathode plate will sway under the impact of the flue gas in the duct, making the electric field unstable and reducing the flue gas purification efficiency. When the purpose of wind resistance is achieved by thickening a single cathode plate, the cathode plate becomes too thick, resulting in material waste.

[0004] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a clamping plate, a cathode plate and a flue gas purification device, which aims to solve the problem that the existing cathode plate is easily impacted and swayed by flue gas, resulting in a reduction in flue gas purification efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The clamp has its sidewall bent to form a first bend, and the first bend is provided with serrated spikes.

[0008] Preferably, the clamp is provided with at least one first through hole.

[0009] Preferably, the clamping plate is bent along the side wall of the first through hole to form a second bent portion, and the bending angle of the second bent portion is the same as the bending angle of the first bent portion.

[0010] Preferably, the second bend is also provided with serrated spikes.

[0011] Preferably, the bending angle is greater than or equal to 30°.

[0012] The present invention also discloses a cathode plate, wherein the anode plate includes two clamping plates as described above, the two clamping plates being symmetrically arranged and fixedly connected.

[0013] The present invention also discloses a flue gas purification device, comprising:

[0014] A first purification box, which is provided with a first inlet and a first outlet;

[0015] At least one anode plate and at least one cathode plate as described above are provided, wherein the anode plate and the cathode plate are arranged parallel to each other and spaced apart in the first purification chamber, and an anode plate is provided between every two adjacent cathode plates.

[0016] Preferably, the flue gas purification device further includes a second purification box, which is provided with a second inlet and a second outlet. The second purification box is provided with a first cathode plate and a first anode plate. The first cathode plate and the first anode plate are both flat plates and are parallel to each other. A first anode plate is provided between two adjacent first cathode plates.

[0017] Preferably, the anode plate is provided with at least one third through hole, which is offset from the first through hole.

[0018] Preferably, the first purification box is provided with a mounting base, which is used to install insulators and is located away from the flue gas flow channel.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The present invention provides a clamping plate, wherein a first bending portion is formed by bending the clamping plate, thereby increasing the strength of the cathode plate composed of the two clamping plates. Furthermore, spikes are provided on the first bending portion, and discharge through these spikes enables a more stable electric field during discharge of the cathode plate composed of the clamping plates.

[0021] Furthermore, a first through-hole is provided in the clamping plate to ensure smooth flow of flue gas. The strength of the cathode plate composed of the clamping plates is further improved by providing a second bend. Spikes on the second bend further stabilize the electric field. Setting the bend angle to be greater than or equal to 30° ensures sufficient strength for the cathode plate composed of the clamping plates. The second through-hole further guarantees smooth flue gas flow.

[0022] The present invention also discloses a cathode plate, which is composed of the above-mentioned clamping plate and has all the advantages of the clamping plate.

[0023] The present invention also discloses a flue gas purification device, which includes the above-mentioned cathode plate and possesses all the advantages of the cathode plate. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a clamping plate according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of another clamping plate provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of another clamping plate provided in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of a cathode plate provided in an embodiment of the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of the A-section structure;

[0029] Figure 6 for Figure 4 Enlarged view of the structure of section B;

[0030] Figure 7 This is a front view of a cathode plate provided in an embodiment of the present invention;

[0031] Figure 8 This is a side sectional view of a purification device provided in an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of an anode plate provided in an embodiment of the present invention.

[0033] Explanation of main component symbols: 100-clamping plate, 110-first bend, 120-spiky, 130-first through hole, 140-second bend, 150-second through hole, 10-cathode plate, 20-first purification chamber, 21-first inlet, 22-first outlet, 23-mounting base, 30-anode plate, 31-third through hole, 40-second purification chamber, 41-second inlet, 42-second outlet, 43-first cathode plate, 44-first anode plate. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0036] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0037] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0038] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0039] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings.

[0040] Example

[0041] In electrostatic flue gas purification devices, the anode and cathode plates are impacted by the flue gas flow. Since the cathode plates are relatively thin, such as only 0.1mm thick for a single plate, they will sway under the impact of the flue gas. During this swaying, the electric field formed by the cathode and anode plates becomes unstable, reducing the flue gas purification efficiency of the device.

[0042] At this point, the strength of the cathode plate can be increased by thickening it, so that the cathode plate can remain stable under the impact of flue gas. However, if the strength of the cathode plate is improved simply by increasing its thickness, the required increase in thickness is relatively large.

[0043] This invention provides a clamping plate 100 for assembling and forming a cathode plate 10. Figure 1-3 The example illustrates three structures of the clamp 100. The side wall of the clamp 100 is bent to form a first bend 110. After the clamp 100 is bent to form the first bend 110, the bending strength of the clamp 100 increases, and the clamp 100 can remain stable under the blowing of airflow.

[0044] When two of the aforementioned clamping plates 100 are symmetrically and fixedly connected back-to-back to form a cathode plate 10, the two first bending portions 110 are arranged opposite each other, thereby enhancing the bending strength of the cathode plate 10 in the flue gas flow direction. Due to the provision of the first bending portions, the strength of the cathode plate 10 formed by combining the two clamping plates 100 is greater than the strength of a single cathode plate 10 of the same thickness. In comparison, the cathode plate 10 formed by combining the two clamping plates 100 in this application saves more material.

[0045] Furthermore, spikes 120 are provided on the first bend 110. Multiple spikes 120 facilitate the discharge of the cathode plate 10 composed of clamping plates 100, making the discharge electric field of the cathode plate 10 composed of clamping plates 100 more stable.

[0046] The clamp 100 can be any geometric shape adapted to the electric field, such as a polygon like a triangle, quadrilateral, or pentagon. Or it can be a curved surface like a circle or ellipse. Or it can be a shape composed of straight lines and curves, such as a semicircle.

[0047] Specifically, the clamping plate 100 is also provided with at least one first through hole 130. The first through hole 130 is located between the first bending portions 110. After the first through hole 130 is provided, the cathode plate 10 formed by the two clamping plates 100 are fixedly connected and a through hole is formed. When the flue gas impacts the cathode plate 10, the flue gas can flow through the first through hole 130, reducing the impact of the flue gas on the clamping plate 100 (cathode plate 10).

[0048] The clamping plate 100 is bent along the side wall of the first through hole 130 to form a second bending portion 140. After the second bending portion 140 is provided, the strength of the clamping plate 100 is further increased, thereby ensuring that the cathode plate 10 can remain stable under the blowing of flue gas.

[0049] Furthermore, spikes 120 are also provided on the second bend 140, and the second bend 140 and the first bend 110 have the same angle. The second bend 140 can also discharge through the spikes 120, thereby stabilizing the electric field.

[0050] After the two clamping plates 100 are fixedly connected back to back to form the cathode plate 10, as follows Figure 4 and Figure 8As shown, when the cathode plate 10 and the anode plate 30 form an electrostatic field, the cathode plate 10 may be opposite to the two anode plates 30. If the angles of the first bend 110 and the second bend 140 are not the same, that is, the distance between the spikes 120 on the first bend 110 and the second bend 140 and their respective opposite anode plates 30 is different, the electrostatic field formed by the spikes 120 on the first bend 110 and one anode plate 30 will be different from the electrostatic field formed by the spikes 120 on the second bend 140 and the other anode plate 30, thus affecting the flue gas purification efficiency.

[0051] The bending angle is the angle between the first bending part 110 or the second bending part 140 and the upper plane of the clamping plate 100, that is, the first bending part 110 or the second bending part 140 is fixed at this position after bending to this degree.

[0052] It is understandable that when the bending angles of the first bending portion 110 and the second bending portion 140 are the same, since the angle is directional, the bending directions of the first bending portion 110 and the second bending portion 140 are the same.

[0053] When the bending angle is less than 30°, the strength provided by the first bending portion 110 and / or the second bending portion 140 is low, and the cathode plate 10 composed of the clamping plate 100 may sway when the flue gas velocity is high.

[0054] When the bending angle is greater than or equal to 30 degrees, the cathode plate 10 composed of clamping plates 100 can remain stable in the flue gas.

[0055] Since the space for installing the cathode plate 10 and the anode plate 30 is fixed, when the bending angle is greater than 30°, and the distance between the spike 120 and the anode plate 30 needs to be kept constant, the number of cathode plates 10 and anode plates 30 existing in the limited space will decrease. At this time, the reduction in the number of anode plates 30 used for dust collection will lead to a reduction in the dust collection area of ​​the purification device, thereby reducing the purification efficiency.

[0056] The preferred setting is to set the bending angle at 30°. At this angle, the cathode plate 10 formed by the bent clamps 100 can meet the strength requirements and retain as much dust collection area as possible.

[0057] To facilitate connection of the cathode plates 10 separated by the anode plates 30, a second through hole 150 is provided on the cathode plate 10. The shape of the second through hole 150 can be arbitrary, such as various polygons or curved shapes. However, it should be noted that the strength of the cathode plate 10 composed of the clamping plates 100 should not be affected after the second through hole 150 is provided.

[0058] like Figure 4-7As shown, the present invention also discloses a cathode plate 10, which is composed of two clamping plates 100 that are symmetrically and fixedly connected. The cathode plate 10 has all the advantages of the clamping plates 100.

[0059] The two plates 100 are usually nailed together by pop rivets.

[0060] like Figure 8-9 As shown, the present invention also discloses a flue gas purification device. The flue gas purification device includes a first purification chamber 20, an anode plate 30, and a cathode plate 10 as described above. The anode plate 30 and the cathode plate 10 are arranged parallel to each other and spaced apart within the first purification chamber 20. The first purification chamber 20 is provided with a first inlet 21 and a first outlet 22, and an electric field is formed between the anode plate 30 and the cathode plate 10 to adsorb the flue gas entering the first purification chamber 20.

[0061] In order to ensure smooth flow of flue gas, at least one third through hole 31 is provided on the anode plate 30. The number of third through holes 31 corresponds to the number of first through holes and is coaxially arranged.

[0062] It should be noted that the opening of the third through hole 31 is larger than that of the second through hole 150. In this case, the wires connecting the adjacent cathode plate 30 through the second through hole 150 can avoid contact with the anode plate, thereby preventing leakage.

[0063] Multiple anode plates 30 and cathode plates 10 are provided, and one cathode plate 10 is directly opposite one or two anode plates 30 to ensure that an electric field can be formed between each cathode plate 10 and anode plate 30, thereby ensuring flue gas purification efficiency.

[0064] To ensure more complete purification of the flue gas, the flue gas purification device typically includes a second purification chamber 40, located downstream of the first purification chamber 40. The second purification chamber 40 has a second inlet 41 and a second outlet 32, with the second inlet 41 connected to the first outlet 22. Inside the second purification chamber 40 are a first cathode plate 43 and a first anode plate 44, both of which are flat (i.e., neither has any spikes) to reduce production costs. A first anode plate 44 is positioned between two adjacent first cathode plates 43, creating an electric field between them. This further purifies the flue gas passing through the first purification chamber, resulting in cleaner flue gas.

[0065] The first purification box 20 is also equipped with a mounting base 23 for installing insulators. The mounting base 23 is far away from the flue gas flow channel. After the insulator is installed on the mounting base 23, the insulator does not come into direct contact with the flue gas when the flue gas purification device is working, which prolongs the cleaning cycle of the insulator.

[0066] It is understood that those skilled in the art can make equivalent substitutions or changes to the technical solution and inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A flue gas purification device, characterized in that, include: A first purification box, which is provided with a first inlet and a first outlet; At least one anode plate and at least one cathode plate are arranged parallel to each other in the first purification box, and an anode plate is arranged between every two adjacent cathode plates; The cathode plate includes two clamping plates, which are symmetrically arranged and fixedly connected. The side wall of the clamp is bent to form a first bend, and the first bend is provided with serrated spikes. The clamp plate is provided with at least one first through hole; when the flue gas impacts the cathode plate, the flue gas can flow through the first through hole, reducing the impact of the flue gas on the cathode plate. The clamping plate is bent along the side wall of the first through hole to form a second bent portion, and the bending angle of the second bent portion is the same as the bending angle of the first bent portion. The second bend is also provided with serrated spikes; The bending angle is 30°; the cathode plate formed by the bent clamps can meet the strength requirements and retain as much dust collection area as possible.

2. The flue gas purification device according to claim 1, characterized in that, It also includes a second purification box located downstream of the first purification box. The second purification box has a second inlet and a second outlet. The second inlet is connected to the first outlet. The second purification box contains a first cathode plate and a first anode plate. Both the first cathode plate and the first anode plate are flat plates. Neither the first cathode plate nor the first anode plate has any spikes. The first cathode plate and the first anode plate are parallel to each other. A first anode plate is disposed between two adjacent first cathode plates.

3. The flue gas purification device according to claim 1, characterized in that, The anode plate is provided with at least one third through hole, which is offset from the first through hole.

4. The flue gas purification device according to claim 3, characterized in that, The first purification box is provided with a mounting base, which is used to install insulators and is located away from the flue gas flow channel.

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