A new corona wire for electrostatic precipitators

Abstract

The utility model relates to the technical field of electrostatic precipitator accessories, concretely relates to a novel corona wire for electrostatic precipitator, including the line body main part, the surface of line body main part is provided with multiple groups of linear equidistance arrangement's tip discharge structure along the length direction of line body main part, every group tip discharge structure all is by multiple radial distribution's discharge spur and is composed, the adjacent tip discharge structure between all is provided with the spoiler boss, the top of spoiler boss is fixedly installed with the spoiler end, the spoiler end is hemispherical, the spoiler end is used for disturbing the flow state of airflow around the corona wire, the annular side surface of spoiler boss and line body main part between are provided with the outer flow guide support, the outer surface of outer flow guide support is provided with arc flow guide surface, the utility model has increased the contact opportunity of dust particle and corona electric field, has further promoted the dust's charge probability and dust removal efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of electrostatic precipitator accessories, specifically, to a novel corona wire for use in electrostatic precipitators. Background Technology

[0002] Electrostatic precipitators are dust removal devices that use a high-voltage electric field to ionize gas, thereby charging dust particles and depositing them on the collecting electrode under the action of the electric field. They are widely used in industrial waste gas treatment, environmental protection and other fields. As a key component of electrostatic precipitators, the performance of the corona wire directly affects the dust removal efficiency and operational stability of the electrostatic precipitator.

[0003] Dust tends to accumulate at the tip of traditional corona electrodes, affecting discharge. If the electrode spacing is too small at certain locations, breakdown will occur first, forming a strong electric field that ionizes the air in the dust gaps, resulting in a back corona phenomenon.

[0004] Utility model patent CN202803406U discloses a novel corona wire for electrostatic precipitators, comprising a support rod and discharge spikes. The discharge spikes are staggered on both sides of the support rod, and each spike has a back spike. This utility model not only possesses the advantages of traditional corona wires—unbroken wire, no deformation, minimal dust accumulation on the spike tips, good vibration performance, and high discharge intensity—but also overcomes the shortcomings of traditional corona wires, such as poor discharge uniformity and weak average electric field strength. The back spikes on the back of the main tube of the spiked wire are primarily to improve the uniformity of the corona current density, increase the number of discharge directions, avoid corona dead zones, enhance the average current density, and effectively improve dust removal efficiency.

[0005] While this technical solution avoids the corona dead zone, enhances the average current density, and effectively improves dust removal efficiency, most current corona wires primarily focus on improving the discharge spikes. However, these spikes still have certain shortcomings. For example, although spike-shaped corona wires have a lower corona initiation voltage, the airflow at the spikes has less contact with the corona electric field, which is not conducive to improving the dust's charging probability and dust removal efficiency. Therefore, we propose a novel corona wire for electrostatic precipitators. Utility Model Content

[0006] The purpose of this invention is to provide a novel corona wire for electrostatic precipitators to address the deficiencies mentioned in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel corona wire for electrostatic precipitators includes a wire body. Multiple sets of linearly spaced, equally spaced pointed discharge structures are arranged on the surface of the wire body along its length. Each set of pointed discharge structures consists of multiple radially distributed discharge spikes. A turbulence-disrupting protrusion is provided between adjacent pointed discharge structures. A turbulence-disrupting end is fixedly installed at the top of each turbulence-disrupting protrusion. The turbulence-disrupting end is hemispherical and used to disrupt the airflow around the corona wire. An external flow-guiding support is provided between the annular side of the turbulence-disrupting protrusion and the wire body. An arc-shaped flow-guiding surface is provided on the outer surface of the external flow-guiding support.

[0009] Preferably, the main body of the line adopts a composite structure, consisting of an inner core layer and an outer covering layer wrapped around the inner core layer;

[0010] This feature ensures that the corona wire is not easily deformed or broken under high-voltage electric fields and airflow.

[0011] Preferably, both ends of the main body of the line are fixedly installed with fixed ends, which are used to fix the line to the corresponding positions on the electrostatic precipitator.

[0012] Preferably, the cross-section of the arc-shaped guide surface is arc-shaped, and the outer diameter of the arc-shaped guide surface decreases sequentially from bottom to top.

[0013] Preferably, the surface of the turbulence-inducing end is provided with a plurality of turbulence-inducing protrusions, which are solid hemispherical in shape.

[0014] This setting can disrupt the flow of air around the corona line, causing turbulence in the dust-laden gas near the corona line, increasing the chance of dust particles coming into contact with the corona electric field, and improving the probability of dust charging and dust removal efficiency.

[0015] Preferably, the turbulence protrusion is a hollow structure, and an inner reinforcing pad is fixedly installed between the inner wall of the turbulence protrusion and the outer covering layer.

[0016] This feature ensures a more secure bond between the turbulence protrusions and the outer cladding.

[0017] Preferably, an inner pressure-resistant pad is fixedly installed between the top surface of the inner reinforcing pad and the inner wall of the turbulence-reducing end, and a central hole is provided at the center of the inner pressure-resistant pad.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model increases the contact area between the corona wire and the gas by setting multiple sets of radially distributed discharge spikes to form a tip discharge structure, making the corona discharge more uniform, effectively reducing the corona initiation voltage, enhancing the corona electric field strength, and improving the dust charging efficiency.

[0020] 2. This utility model, by setting turbulent protrusions between adjacent tip discharge structures and installing hemispherical turbulent ends at their tops and turbulent protrusions on their surfaces, disrupts the flow state of the airflow around the corona line, causing the dust-laden gas to form turbulence near the corona line, increasing the contact opportunity between dust particles and the corona electric field, and further improving the dust charging probability and dust removal efficiency.

[0021] 3. This utility model adopts a composite structure for the main body of the wire and a hollow structure design for the turbulence protrusion. Combined with internal reinforcement pads, internal anti-pressure pads and other components, it ensures that the corona wire is not easily deformed or broken under high voltage electric field and airflow scouring. At the same time, it enhances the stability of the turbulence protrusion and other components, extends the service life of the corona wire, and reduces the maintenance frequency and maintenance cost of the equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0024] Figure 3 This is the second partial structural schematic diagram of the present utility model;

[0025] The meanings of the labels in the diagram are as follows:

[0026] 1. Main body of the production line; 10. Outer coating layer; 11. Inner core layer; 12. Fixed end;

[0027] 2. Pointed discharge structure; 20. Discharge spikes;

[0028] 3. Turbulence protrusion; 30. Turbulence end; 31. Turbulence protrusion; 32. Inner reinforcement pad; 33. Inner pressure-resistant pad; 34. Center hole; 35. Outer guide support; 351. Arc-shaped guide surface. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0030] Please see Figures 1-3This utility model provides a technical solution: a novel corona wire for an electrostatic precipitator, comprising a wire body 1, the surface of which is provided with multiple sets of linearly and equally spaced tip discharge structures 2 along the length direction of the wire body 1, each set of tip discharge structures 2 consisting of multiple radially distributed discharge spikes 20. By providing multiple sets of linearly and equally spaced tip discharge structures 2 along the length direction of the wire body 1, and each set of tip discharge structures 2 consisting of multiple radially distributed discharge spikes 20, the contact area between the corona wire and the gas is increased, the corona initiation voltage is reduced, the corona discharge is made more uniform, and the corona electric field strength is enhanced, thereby effectively improving the dust charging efficiency.

[0031] In this embodiment, a turbulence protrusion 3 is provided between adjacent tip discharge structures 2. A turbulence end 30 is fixedly installed at the top of the turbulence protrusion 3. The turbulence end 30 is hemispherical and is used to disrupt the flow of air around the corona line. An external flow guide support 35 is provided between the annular side of the turbulence protrusion 3 and the main body 1 of the line. An arc-shaped flow guide surface 351 is provided on the outer surface of the external flow guide support 35. The cross-section of the arc-shaped flow guide surface 351 is arc-shaped, and the outer diameter of the arc-shaped flow guide surface 351 decreases from bottom to top. The turbulence end 30 can disrupt the flow of air around the corona line. At the same time, the external flow guide support 35 between the annular side of the turbulence protrusion 3 and the main body 1 of the line and the arc-shaped flow guide surface 351 on its outer surface can reasonably guide the airflow, further optimize the airflow distribution, and make the dust-laden gas form a flow state that is more conducive to dust charging near the corona line, thereby improving the dust removal efficiency.

[0032] like Figure 1 and Figure 2 As shown, the main body 1 of the wire adopts a composite structure, consisting of an inner core layer 11 and an outer covering layer 10 wrapped around the inner core layer 11. The inner core layer 11 can be made of a high-strength conductive metal material, preferably stainless steel, which has good conductivity and mechanical strength, providing stable conductivity and structural support for the corona wire, ensuring that the corona wire is not easily deformed or broken under high-voltage electric fields and airflow erosion. The outer covering layer 10 wraps around the inner core layer 11 and plays a protective role. The outer covering layer 10 can be made of a corrosion-resistant, high-hardness alloy coating, which is uniformly covered on the surface of the inner core layer by a thermal spraying process. The composition of the alloy coating includes, but is not limited to, nickel-based alloys and chromium-based alloys, with the addition of a certain proportion of rare earth elements. The addition of rare earth elements can significantly improve the corrosion resistance and hardness of the alloy coating, enabling it to effectively resist the erosion of corrosive components in dusty gases, while enhancing the wear resistance of the coating and reducing wear during airflow erosion and high-voltage discharge.

[0033] like Figure 1As shown, both ends of the main body 1 of the line are fixedly installed with fixed ends 12. The fixed ends 12 are used to fix the corona wire at the corresponding position on the electrostatic precipitator, so as to conveniently and securely fix the corona wire at the corresponding position on the electrostatic precipitator, ensuring that the position of the corona wire is fixed during the operation of the equipment and ensuring the normal operation of the dust removal work.

[0034] Specifically, multiple turbulence protrusions 31 are provided on the surface of the turbulence end 30. The turbulence protrusions 31 are solid hemispherical in shape, which further disrupt the flow state of the airflow around the corona line, causing the dust-laden gas to form turbulence near the corona line, increasing the contact opportunity between dust particles and the corona electric field, and significantly improving the dust charging probability and dust removal efficiency.

[0035] Furthermore, the turbulence protrusion 3 is a hollow structure, and an inner reinforcing pad 32 is fixedly installed between the inner wall of the turbulence protrusion 3 and the outer covering layer 10. While ensuring the function of the turbulence protrusion 3, the overall weight is reduced, and the inner reinforcing pad 32 makes the turbulence protrusion 3 and the outer covering layer 10 more firmly fixed, thereby improving the reliability of the corona wire structure.

[0036] It is worth noting that an inner pressure-resistant pad 33 is fixedly installed between the top surface of the inner reinforcing pad 32 and the inner wall of the turbulence-protruding end 30. A central hole 34 is provided at the center of the inner pressure-resistant pad 33. The inner pressure-resistant pad 33 can effectively disperse the pressure on the turbulence-protruding end 30 and enhance the pressure resistance of the top of the turbulence-protruding column 3. The central hole 34 reduces the weight to a certain extent without affecting the structural strength and pressure dispersion effect of the inner pressure-resistant pad 33, further ensuring the stable operation of each component of the corona wire under complex working conditions.

[0037] Finally, it should be noted that the inner core layer 11, the tip discharge structure 2, and other components involved in this utility model are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the adapted controller and power supply, are connected by wires. The specific connection methods should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0038] When using the novel corona wire for electrostatic precipitators, the wire body 1 is first securely installed at the corresponding fixed position in the electrostatic precipitator through the fixed ends 12 at both ends of the wire body 1, ensuring a firm installation and guaranteeing the stability of the corona wire during the dust removal process.

[0039] After the equipment is in operation, the dust-laden gas enters the electrostatic precipitator. When the gas flows through the main body 1, multiple sets of linearly and equally spaced pointed discharge structures 2 on the surface begin to function, with multiple radially distributed discharge spikes 20 reducing the corona initiation voltage and forming a strong corona electric field, which charges the dust particles. At the same time, the turbulence protrusions 3 between adjacent pointed discharge structures 2 and their hemispherical turbulence ends 30 at their tops, together with the arc-shaped guide surface 351 of the external guide support 35, disturb and rationally guide the airflow, so that the dust-laden gas forms a turbulent state near the corona line that is conducive to dust charging, increasing the contact opportunity between the dust and the corona electric field and increasing the probability of charging.

[0040] During long-term operation, the composite structure of the main body 1 plays a role, with the inner core layer 11 providing stable conductivity and structural support, and the outer coating layer 10 resisting corrosion and reducing wear.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel corona wire for electrostatic precipitators, comprising a wire body (1), characterized in that: The surface of the main body (1) is provided with multiple sets of tip discharge structures (2) arranged linearly and equally spaced along the length direction of the main body (1). Each set of tip discharge structures (2) is composed of multiple radially distributed discharge spikes (20). A turbulence protrusion (3) is provided between adjacent tip discharge structures (2). A turbulence end (30) is fixedly installed at the top of the turbulence protrusion (3). The turbulence end (30) is hemispherical and is used to disrupt the flow state of the airflow around the corona wire. An external flow guide support (35) is provided between the annular side of the turbulence protrusion (3) and the main body (1). An arc-shaped flow guide surface (351) is provided on the outer surface of the external flow guide support (35).

2. The novel corona wire for electrostatic precipitators according to claim 1, characterized in that: The main body (1) of the line adopts a composite structure, consisting of an inner core layer (11) and an outer covering layer (10) wrapped around the inner core layer (11).

3. The novel corona wire for electrostatic precipitators according to claim 1, characterized in that: The two ends of the main body (1) of the line are fixedly installed with fixed ends (12), which are used to fix the line to the corresponding position on the electrostatic precipitator.

4. The novel corona wire for electrostatic precipitators according to claim 1, characterized in that: The cross-section of the arc-shaped guide surface (351) is arc-shaped, and the outer diameter of the arc-shaped guide surface (351) decreases sequentially from bottom to top.

5. The novel corona wire for electrostatic precipitators according to claim 1, characterized in that: The surface of the turbulence end (30) is provided with a plurality of turbulence protrusions (31), and the turbulence protrusions (31) are solid hemispherical.

6. The novel corona wire for electrostatic precipitators according to claim 2, characterized in that: The turbulence protrusion (3) is a hollow structure, and an inner reinforcing pad (32) is fixedly installed between the inner wall of the turbulence protrusion (3) and the outer covering layer (10).

7. The novel corona wire for electrostatic precipitators according to claim 6, characterized in that: An inner pressure-resistant pad (33) is fixedly installed between the top surface of the inner reinforcing pad (32) and the inner wall of the turbulence end (30), and a central hole (34) is provided at the center of the inner pressure-resistant pad (33).

Images