Cathode anti-swing frame for wet-type electric dust collector
The design of the cathode anti-sway frame solves the problem of cathode wire swaying caused by vibration and flue gas flow in wet electrostatic precipitators, achieving efficient installation and stable operation, and extending the service life of the cathode tube.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIXING DONGLI ENVIRONMENTAL PROTECTION EQUIP CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-12
AI Technical Summary
In existing wet electrostatic precipitators, the cathode wires are prone to swaying due to flue gas flow and equipment vibration, which affects the uniformity of the electric field and the dust removal efficiency, and is also prone to short circuit faults, making it difficult to guarantee installation accuracy.
The cathode anti-sway frame is adopted. Through the design of the installation and clamping components, the elastic deformation of the rubber tube and positioning ball and the double locking of the buckle plate are used to ensure the rigid connection between the cathode tube and the frame. Combined with the multi-point clamping of the limiting cylinder and rubber strip, the displacement and swing of the cathode tube are restricted.
It improves the installation efficiency and stability of the cathode system, extends the service life of the cathode tube, prevents failures caused by vibration and thermal stress, and ensures dust removal efficiency.
Smart Images

Figure CN224346066U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmental engineering technology, specifically to a cathode anti-sway frame for a wet electrostatic precipitator. Background Technology
[0002] During the operation of a wet electrostatic precipitator, the cathode wire, as a core component, plays a crucial role in releasing electrons and charging dust particles. However, factors such as high-speed flow of flue gas and equipment vibration can easily cause the cathode wire to swing, which not only affects the uniformity of the electric field distribution and reduces dust removal efficiency, but may also cause the cathode wire to collide with the anode plate and short-circuit, resulting in equipment failure.
[0003] The cathode anti-sway frame typically consists of a high-strength, corrosion-resistant frame body, a limiting support assembly, and an adjustment mechanism. The frame body is made of stainless steel or a special alloy material, possessing excellent strength and corrosion resistance, and can withstand long-term erosion by flue gas. The limiting support assembly includes multiple positioning clamps and support beams, which can limit and fix the cathode wire from multiple directions. The adjustment mechanism is used to flexibly adjust the support position and force to adapt to cathode wires of different specifications.
[0004] However, in actual use, most of the existing devices lack positioning assistance devices, and the cathode tube installation requires repeated adjustments to its position, relying on manual experience for judgment. The installation accuracy is difficult to guarantee, which can easily lead to uneven spacing between the discharge tip and the anode plate, affecting the dust removal efficiency. At the same time, the device is affected by airflow impact and equipment vibration during operation, and the connection between the cathode tube and the frame is prone to loosening, resulting in unstable discharge and even short circuit faults. In view of this, we propose a cathode anti-sway frame for wet electrostatic precipitators. Utility Model Content
[0005] The purpose of this invention is to provide a cathode anti-sway frame for a wet electrostatic precipitator to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A cathode anti-sway frame for a wet electrostatic precipitator includes a first frame, a second frame attached to the first frame, and a mounting assembly disposed on the first frame, the mounting assembly comprising:
[0008] The mounting slots are provided on the first frame and the second frame. A cathode tube is provided on the outside of the first frame. A discharge tip is fixedly installed on the cathode tube. Rubber tubes are fixedly installed at both ends of the cathode tube. Positioning holes are provided on the rubber tubes.
[0009] Positioning ball: A positioning ball is fixedly installed inside the first frame and the second frame. The first frame and the second frame are provided with a sliding groove, a semi-funnel groove and a snap-fit groove. A snap-fit plate is snapped onto the first frame and the second frame.
[0010] A limiting groove is provided on the rubber tube. A limiting plate is slidably installed on the first frame and the second frame. A threaded plate is fixedly installed on the first frame and the second frame. Fasteners are threadedly installed on the threaded plate.
[0011] In a further embodiment, the mounting groove, cathode tube, discharge tip, rubber tube, positioning hole, positioning ball, sliding groove, semi-funnel groove, snap groove, snap plate, limit groove, limit plate, threaded plate, and fasteners are provided in multiple sets.
[0012] In a further embodiment, the rubber tube is disposed inside the mounting groove, the positioning ball fits into the positioning hole, the buckle plate is disposed inside the buckle groove, and the first frame and the second frame are fastened together by threaded plates and fasteners.
[0013] In a further embodiment, the internal spaces of the chute, the semi-funnel groove, the snap-fit groove, and the limiting groove are interconnected, and the limiting plate slides inside the chute and passes through multiple sets of limiting grooves.
[0014] In a further embodiment, a clamping assembly is provided on the first frame. The clamping assembly includes a mounting plate. The mounting plate is fixedly installed on the first frame and the second frame. A limiting cylinder is fixedly installed on the mounting plate. A limiting hole is formed on the limiting cylinder. A rubber strip is fixedly installed on the limiting cylinder.
[0015] In a further embodiment, the mounting plate, limiting cylinder, limiting hole, and rubber strip are provided in multiple sets.
[0016] In a further embodiment, the cathode tube is positioned between multiple sets of limiting cylinders, the discharge tip slides inside the limiting hole, and the rubber strip adheres to the surface of the cathode tube.
[0017] Compared with the prior art, this utility model provides a cathode anti-sway frame for a wet electrostatic precipitator, which has the following beneficial effects:
[0018] 1. This wet electrostatic precipitator uses a cathode anti-sway frame. To improve the installation efficiency and stability of the cathode system, an installation component is provided. This component is fixed to the frame via a mounting groove through the cathode tube. The rubber tubes at both ends of the component are embedded in the positioning holes of the frame. The elastic deformation of the rubber compensates for installation errors and enhances the seismic performance. The sliding groove on the frame and the snap-on plate form a double locking mechanism. After the snap-on plate is engaged with the sliding groove, the cathode tube and the frame are connected by fastener threads, making them a rigid whole. This effectively prevents displacement caused by vibration during operation. At the same time, the cooperation between the positioning ball and the positioning hole provides a guiding effect during installation, ensuring that the cathode tube is quickly aligned with the installation position and reducing manual adjustment time.
[0019] 2. This wet electrostatic precipitator uses a cathode anti-sway frame. To extend the service life of the cathode tube, a clamping assembly is installed. This assembly is fixed to the frame by limiting cylinders. The rubber strips inside the assembly are tightly attached to the surface of the cathode tube, using the friction of the rubber to limit the radial displacement of the cathode tube, while allowing slight axial thermal expansion to avoid component damage caused by thermal stress. Multiple sets of limiting cylinders are distributed along the axial direction of the cathode tube, forming a multi-point clamping structure, which effectively suppresses the sway amplitude of the cathode tube. The anti-slip texture on the surface of the rubber strips further enhances the friction, and together with the rigid support of the limiting cylinders, keeps the cathode tube upright under the scouring of strong airflow, thus extending the service life of the cathode tube. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;
[0022] Figure 3 This is a three-dimensional schematic diagram of the internal structure of this utility model;
[0023] Figure 4 This is a three-dimensional schematic diagram of part of the structure of this utility model;
[0024] Figure 5 This utility model Figure 4 Enlarged structural diagram of region A in the middle;
[0025] Figure 6 This is an exploded view of the structure of this utility model.
[0026] Explanation of icon numbers:
[0027] 1. Frame No. 1; 2. Frame No. 2;
[0028] 3. Mounting components; 31. Mounting groove; 32. Cathode tube; 33. Discharge tip; 34. Rubber tube; 35. Positioning hole; 36. Positioning ball; 37. Slide groove; 38. Semi-funnel groove; 39. Snap-fit groove; 310. Snap-fit plate; 311. Limiting groove; 312. Limiting plate; 313. Threaded plate; 314. Fastener;
[0029] 4. Clamping assembly; 41. Mounting plate; 42. Limiting cylinder; 43. Limiting hole; 44. Rubber strip. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.
[0032] Please see Figures 1-6 This utility model provides a technical solution:
[0033] A cathode anti-sway frame for a wet electrostatic precipitator includes a first frame 1, on which a second frame 2 is attached.
[0034] In one embodiment of this utility model, a mounting component 3 is provided on the first frame 1. The mounting component 3 includes a mounting groove 31. The first frame 1 and the second frame 2 are provided with mounting grooves 31. A cathode tube 32 is provided on the outside of the first frame 1. A discharge tip 33 is fixedly installed on the cathode tube 32. Rubber tubes 34 are fixedly installed at both ends of the cathode tube 32. Positioning holes 35 are provided on the rubber tubes 34. Positioning balls 36 are fixedly installed inside the first frame 1 and the second frame 2. A sliding groove 37, a semi-funnel groove 38, and a snap-fit groove 39 are provided on the first frame 1 and the second frame 2. A snap-fit plate 310 is snapped onto the first frame 1 and the second frame 2. A limit groove 311 is provided on the rubber tube 34. A limit plate 312 is slidably installed on the first frame 1 and the second frame 2. A threaded plate 313 is fixedly installed, and fasteners 314 are threadedly installed on the threaded plate 313. Multiple sets of mounting groove 31, cathode tube 32, discharge tip 33, rubber tube 34, positioning hole 35, positioning ball 36, sliding groove 37, semi-funnel groove 38, snap-fit groove 39, snap-fit plate 310, limiting groove 311, limiting plate 312, threaded plate 313 and fasteners 314 are provided. The rubber tube 34 is set inside the mounting groove 31. The positioning ball 36 fits with the positioning hole 35. The snap-fit plate 310 is set inside the snap-fit groove 39. The first frame 1 and the second frame 2 are fastened together by the threaded plate 313 and fasteners 314. The internal spaces of the sliding groove 37, semi-funnel groove 38, snap-fit groove 39 and limiting groove 311 are connected. The limiting plate 312 slides inside the sliding groove 37 and passes through multiple sets of limiting grooves 311.
[0035] In this embodiment, the cathode tube 32 is first placed between frame 1 and frame 2, aligning the rubber tubes 34 at both ends of the cathode tube 32 with the mounting grooves 31. Frame 1 and frame 2 are then placed close together, ensuring the threaded plates 313 on both are accurately aligned. Fasteners 314 are then threaded onto the threaded plates 313 using a tool and gradually tightened. Through the cooperation of multiple sets of threaded plates 313 and fasteners 314, frame 1 and frame 2 are securely connected, forming an integral frame structure. At this point, the positioning holes 35 on the rubber tubes 34 gradually come into contact with the positioning balls 36 inside frame 1 and frame 2. Due to the elasticity of the rubber tubes 34, they deform under the pressure of the positioning balls 36 until the positioning balls 36 are fully embedded in the positioning holes 35, completing the initial positioning of the cathode tube 32. This positioning method effectively reduces the time required for manual adjustment of the cathode tube 32's position and improves efficiency. For efficient installation, the limiting plate 312 is inserted along the slide groove 37. The semi-funnel groove 38 plays a role, with its funnel-shaped opening guiding the limiting plate 312, facilitating its rapid sliding into the slide groove 37. Simultaneously, the size of the snap-fit plate 310 matches the snap-fit groove 39. When the snap-fit plate 310 is fully inserted into the snap-fit groove 39, the limiting plate 312 aligns with the limiting groove 311 on the rubber tube 34. Then, the limiting plate 312 is pushed to slide within the slide groove 37, passing through multiple limiting grooves 311 in sequence, thus blocking the cathode tube 32 and restricting its movement. Finally, the limiting plate 312 is fixed to the frame using fasteners 314, further reinforcing the position of the snap-fit plate 310. Through this series of operations, the cathode tube 32 and the frame form a rigid whole, effectively resisting the effects of vibration during equipment operation and preventing displacement of the cathode tube 32.
[0036] In one embodiment of this utility model, a clamping assembly 4 is provided on the first frame 1. The clamping assembly 4 includes a mounting plate 41. The mounting plate 41 is fixedly installed on the first frame 1 and the second frame 2. A limiting cylinder 42 is fixedly installed on the mounting plate 41. A limiting hole 43 is opened on the limiting cylinder 42. A rubber strip 44 is fixedly installed on the limiting cylinder 42. Multiple sets of mounting plate 41, limiting cylinder 42, limiting hole 43 and rubber strip 44 are provided. The cathode tube 32 is disposed between multiple sets of limiting cylinders 42. The discharge tip 33 slides inside the limiting hole 43. The rubber strip 44 is attached to the surface of the cathode tube 32.
[0037] In this embodiment, during the installation of the cathode tube 32, the cathode tube 32 is passed through an array composed of multiple sets of limiting cylinders 42. The discharge tips 33 at both ends of the cathode tube 32 slide along the limiting holes 43 on the limiting cylinders 42 until the cathode tube 32 reaches the appropriate position. At this time, the rubber strips 44 on the surface of the limiting cylinders 42 are attached to the surface of the cathode tube 32 with a certain pre-tightening force. The rubber strips 44 are made of a material with high frictional properties, which can generate a large frictional force when in contact with the cathode tube 32, thereby limiting the radial displacement of the cathode tube 32 and ensuring that the cathode tube 32 remains stable in the initial state. When the wet electrostatic precipitator is running, the internal airflow will exert a force on the cathode tube 32, causing the cathode tube 32 to tend to swing. The multiple sets of limiting cylinders 42 distributed along the axial direction of the cathode tube 32 work together to control the friction between the rubber strips 44 and the cathode tube 32. The friction between the cathode tube 32 and the limiting cylinder 44 constrains the cathode tube 32 from multiple points, effectively suppressing the swing amplitude of the cathode tube 32. At the same time, the rubber strip 44 has good elasticity, which allows the cathode tube 32 to undergo slight axial thermal expansion while restricting the radial displacement of the cathode tube 32. This is because the cathode tube 32 will undergo thermal expansion and contraction due to temperature changes during equipment operation. If it is not allowed to have a certain amount of expansion and contraction space, thermal stress will be generated, which may lead to component damage. The elastic deformation of the rubber strip 44 can absorb and compensate for this thermal displacement and avoid the generation of thermal stress. In addition, the surface of the rubber strip 44 is designed with anti-slip texture, which further enhances the friction between it and the cathode tube 32. Combined with the rigid support of the limiting cylinder 42, the cathode tube 32 can still maintain an upright state under the scouring of strong airflow, thereby extending the service life of the cathode tube 32.
[0038] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.
[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A cathode anti-sway frame for a wet electrostatic precipitator, comprising a first frame (1), wherein a second frame (2) is attached to the first frame (1), characterized in that: An installation component (3) is provided on the first frame (1), the installation component (3) including: Mounting slot (31) is provided on the first frame (1) and the second frame (2). A cathode tube (32) is provided on the outside of the first frame (1). A discharge tip (33) is fixedly installed on the cathode tube (32). Rubber tubes (34) are fixedly installed at both ends of the cathode tube (32). A positioning hole (35) is provided on the rubber tube (34). Positioning ball (36), the positioning ball (36) is fixedly installed inside the first frame (1) and the second frame (2), the first frame (1) and the second frame (2) are provided with a sliding groove (37), a half funnel groove (38) and a buckle groove (39), and a buckle plate (310) is snapped on the first frame (1) and the second frame (2); A limiting groove (311) is provided on the rubber tube (34). A limiting plate (312) is slidably installed on the first frame (1) and the second frame (2). A threaded plate (313) is fixedly installed on the first frame (1) and the second frame (2). A fastener (314) is threaded on the threaded plate (313).
2. The cathode anti-sway frame for a wet electrostatic precipitator according to claim 1, characterized in that: The mounting groove (31), cathode tube (32), discharge tip (33), rubber tube (34), positioning hole (35), positioning ball (36), sliding groove (37), semi-funnel groove (38), snap groove (39), snap plate (310), limiting groove (311), limiting plate (312), threaded plate (313) and fastener (314) are provided in multiple sets.
3. The cathode anti-sway frame for a wet electrostatic precipitator according to claim 1, characterized in that: The rubber tube (34) is disposed inside the mounting groove (31), the positioning ball (36) is fitted with the positioning hole (35), the buckle plate (310) is disposed inside the buckle groove (39), and the first frame (1) and the second frame (2) are fastened together by the threaded plate (313) and the fastener (314).
4. The cathode anti-sway frame for a wet electrostatic precipitator according to claim 1, characterized in that: The internal spaces of the slide groove (37), the half-funnel groove (38), the buckle groove (39) and the limiting groove (311) are connected, and the limiting plate (312) slides inside the slide groove (37) and passes through multiple sets of limiting grooves (311).
5. The cathode anti-sway frame for a wet electrostatic precipitator according to claim 1, characterized in that: A clamping assembly (4) is provided on the first frame (1). The clamping assembly (4) includes a mounting plate (41). The mounting plate (41) is fixedly installed on the first frame (1) and the second frame (2). A limiting cylinder (42) is fixedly installed on the mounting plate (41). A limiting hole (43) is opened on the limiting cylinder (42). A rubber strip (44) is fixedly installed on the limiting cylinder (42).
6. A cathode anti-sway frame for a wet electrostatic precipitator according to claim 5, characterized in that: The mounting plate (41), limiting cylinder (42), limiting hole (43) and rubber strip (44) are provided in multiple sets.
7. A cathode anti-sway frame for a wet electrostatic precipitator according to claim 5, characterized in that: The cathode tube (32) is disposed between multiple sets of limiting cylinders (42), the discharge tip (33) slides inside the limiting hole (43), and the rubber strip (44) is attached to the surface of the cathode tube (32).