Corona wire of electrostatic dust collector

Abstract

The utility model relates to the technical field of electrostatic dust collection, in particular to a corona wire of an electrostatic dust collector, which comprises a cathode tube and a plurality of cathode wires fixedly connected to two sides of the cathode tube, and is characterized in that the cathode wires are metal plates, two ends of each cathode wire are barbs with apex angles and shear angles, and the barbs are bent front and back along the horizontal direction. And the upper and lower barbs are arranged in a staggered manner. The utility model provides a corona wire of an electrostatic dust collector, which solves the problem that the corona wire is easy to break when an electric field discharges uniformly and too much dust is deposited on a steel plate through the improvement of the corona wire.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic precipitator technology, specifically to a corona wire for an electrostatic precipitator. Background Technology

[0002] In electrostatic precipitators, the discharge cathode wire is one of the core components, and its structure directly affects the dust removal efficiency. To enhance discharge capability, common corona wire devices in dust removal equipment typically incorporate numerous discharge tips on a single cathode wire. For example, Chinese patent CN105817329A describes a barbed discharge cathode wire for electrostatic precipitators, which uses four sharp barbs welded onto a high-frequency welded pipe. Due to the dense arrangement of the barbs without staggered placement, the non-uniform electric fields generated by the discharge tips during discharge easily interfere with each other, thus weakening the discharge capability.

[0003] In addition, Chinese patent CN204583487U relates to electrostatic precipitators, electrostatic demisters, and cathode barbed wires, which adopt a structure of punching and bending barbs on a cathode steel plate; directly punching and bending on the cathode plate results in a cathode wire with weak strength that is prone to breakage during rapping. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a corona wire for an electrostatic precipitator. By improving the corona wire, the problems of uniform electric field discharge and easy breakage when excessive dust accumulates on the steel plate during stamping are solved.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an electrostatic precipitator corona wire, comprising a cathode tube and a plurality of cathode wires fixedly connected to both sides of the cathode tube, wherein the cathode wires are metal plates, and both ends of the cathode wires are barbs with apex-cut corners, the two barbs are bent back and forth along the horizontal direction, and the upper and lower barbs are arranged in a staggered manner.

[0006] Preferably, the cathode wire is a triangular metal plate.

[0007] Preferably, the cathode wire has a plurality of spikes equidistantly arranged on its two long sides, the spikes being bent forward and backward, and the two opposite spikes being arranged in a staggered manner.

[0008] Preferably, the cathode wire is a long strip of metal plate, and a number of spikes are equidistantly arranged on the upper and lower edges of the metal plate. The spikes are formed by bending the metal plate back and forth along the horizontal direction after stamping, and the two spikes that are opposite each other are arranged in a staggered manner.

[0009] Preferably, the cathode tube is a hollow tube with a diameter of 2-5cm, a wall thickness of 1-2mm, and a length of 250cm-600cm.

[0010] Preferably, the cathode tube and the cathode wire are connected by the cathode wire being snapped into the cathode tube and then welded together, with the weld joint being 30-50mm.

[0011] Preferably, the cathode wire is less than 70 mm long from one side of the cathode tube, less than 25 mm wide, and 1 mm thick.

[0012] Preferably, the bend angle α between the spike and the cathode wire is 15°-90°, and the length L of the spike is 15mm-18mm. Beneficial effects

[0013] This invention provides a corona wire for an electrostatic precipitator. Compared with existing technologies, it has the following advantages:

[0014] (1) The present invention has multiple cathode wires welded on the cathode tube and multiple spikes set on the upper and lower edges of the cathode wires, which makes the sharp corner discharge effect better. The spikes are formed by stamping and the spikes are directly bent to achieve the appropriate angle, which can effectively reduce the consumption of steel and reduce the cost, and improve the efficiency of dust removal and cleaning.

[0015] (2) By arranging the spiked structure of the cathode wire in a forward and backward bending manner, the present invention forms multiple non-overlapping uniform electric fields with the anode plate of the electrostatic precipitator during the discharge process, thereby improving the charging capacity of the dust and thus improving the corona treatment effect of the dust collector.

[0016] (3) The cathode tube is arranged in a hollow manner, which can reduce costs, increase the dust collection capacity of the cathode tube, and achieve the dust removal effect. The cathode wire is first clamped to the cathode tube and then welded, which avoids the risk of falling during the vibration period due to the weak contact surface of the weld point caused by simple welding. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0019] Figure 3 This is a front view of Embodiment 2 of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0021] Figure 5 for Figure 3 A schematic diagram of the planar unfolding of the central cathode line.

[0022] In the diagram: 1. Cathode tube; 2. Cathode wire; 21. Spike; 22. Barb. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1-5 This utility model provides three technical solutions: Example 1

[0025] like Figure 1 As shown, an electrostatic precipitator corona wire includes a cathode tube 1 and several cathode wires 2 fixedly connected to both sides of the cathode tube 1. The cathode wires 2 are metal plates with a thickness of 1 mm. The two ends of the cathode wires on the metal plates are barbs 22 with apical angles. The two barbs 22 are bent back and forth along the horizontal direction to form a staggered arrangement. The length of the barbs 22 is 15 mm-18 mm. The barbs 22 are formed by stamping the metal plate and then bending it back and forth along the horizontal direction at a bending angle of α. The two vertically opposite barbs 22 are staggered, with α being 15°-90°. This staggered arrangement reduces the mutual interference of the electric fields generated by the vertically opposite barbs 22.

[0026] Furthermore, the cathode tube 1 is a hollow tube with a diameter of 2-5 cm, a wall thickness of 1-2 mm, and a length of 250 cm-600 cm. The hollow tube wall can serve as the dust collection space for the dust collection corona wire, further improving dust collection efficiency.

[0027] Furthermore, the connection method between cathode tube 1 and cathode wire 2 is as follows: cathode wire 1 is first snapped onto a part of cathode tube and then welded, with the weld joint being 30-50mm. This ensures a larger contact area and avoids the cathode wire or cathode tube from breaking during vibration cleaning.

[0028] Furthermore, the length of the cathode wire from one side of the cathode tube is less than 70 mm, the width is less than 25 mm, and the thickness is 1 mm. Example 2

[0029] like Figure 2 As shown in Figure 3 / 5, an electrostatic precipitator corona wire includes a cathode tube 1 and several cathode wires 2 fixedly connected to both sides of the cathode tube 1. Each cathode wire 2 is a triangular metal plate with several spikes equidistantly arranged on its two long sides. The ends of the metal plate are pointed barbs 22 with apical angles. The length L of the spikes or barbs is 15mm-18mm. The spikes 21 and 22 are formed by stamping the metal plate and then bending it horizontally back and forth at a bending angle of α. The two opposing spikes 21 are staggered, with α ranging from 15° to 90°. This staggered arrangement reduces mutual interference between the electric fields generated by the upper and lower spikes 21 or 22.

[0030] Furthermore, the cathode tube 1 is a hollow tube with a diameter of 2-5cm and a wall thickness of 1-2mm. The hollow tube wall can serve as the dust collection space for the dust removal corona wire, further improving the dust collection efficiency.

[0031] Furthermore, the connection method between cathode tube 1 and cathode wire 2 is as follows: cathode wire 1 is first snapped onto a part of cathode tube and then welded, with the weld joint being 30-50mm. This ensures a larger contact area and avoids the cathode wire or cathode tube from breaking during vibration cleaning.

[0032] Furthermore, the length of the cathode wire from one side of the cathode tube is less than 70 mm, the width is less than 25 mm, and the thickness is 1 mm. Example 3

[0033] like Figure 4 , 5 As shown, an electrostatic precipitator corona wire includes a cathode tube 1 and several cathode wires 2 fixedly connected to both sides of the cathode tube 1. The cathode wire 2 is a rectangular metal plate with several spikes 21 on its upper and lower edges and symmetrical barbs 22 at its two ends. The length L of the spikes or barbs is 15mm-18mm. The spikes 21 and barbs 22 are formed by bending the metal plate horizontally after stamping, with a bending angle of α. The two opposing spikes 21 are staggered, with α being 15°-90°. This staggered arrangement reduces mutual interference between the electric fields generated by the upper and lower spikes 21 or barbs 22.

[0034] Furthermore, the cathode tube 1 is a hollow tube with a diameter of 2-5 cm, a wall thickness of 1-2 mm, and a length of 250 cm-600 cm. The hollow tube wall can serve as the dust collection space for the dust collection corona wire, further improving dust collection efficiency.

[0035] Furthermore, the connection method between cathode tube 1 and cathode wire 2 is as follows: cathode wire 1 is first snapped onto a part of cathode tube and then welded, with the weld joint being 30-50mm. This ensures a larger contact area and avoids the cathode wire or cathode tube from breaking during vibration cleaning.

[0036] Furthermore, the length of the cathode wire from one side of the cathode tube is less than 70 mm, the width is less than 25 mm, and the thickness is 1 mm.

Claims

1. A corona wire for electrostatic precipitators comprising a cathode tube and a plurality of cathode wires fixedly connected to both sides of the cathode tube, characterized in that: The cathode wire is a metal plate, the cathode wire two ends are top angle shear angle thorn, the thorn along the horizontal direction is folded back and forth, and the upper and lower thorns are arranged in a staggered manner.

2. A corona wire for electrostatic precipitators according to claim 1, characterized in that: The cathode wire two sides are triangular metal plates.

3. A corona wire for an electrostatic precipitator according to claim 2, wherein: The cathode wire two long edges are provided with a plurality of sharp thorns at equal intervals, the sharp thorns are folded back and forth, and two opposite sharp thorns are arranged in a staggered manner.

4. An electrostatic precipitator corona wire as claimed in claim 1, wherein: The cathode wire is a long strip-shaped metal plate, the metal plate upper and lower edges are provided with a plurality of sharp thorns at equal intervals, the sharp thorns are folded back and forth along the horizontal direction after the metal plate is punched, and two upper and lower opposite sharp thorns are arranged in a staggered manner.

5. An electrostatic precipitator corona wire as defined in claim 1, wherein: The cathode tube is a hollow tube, the tube diameter is 2-5cm, the tube wall thickness is 1-2mm, and the tube length is 250cm-600cm.

6. An electrostatic precipitator corona wire as defined in claim 1, wherein: The connection mode of the cathode tube and the cathode wire is that the cathode wire is clamped in the cathode tube and then welded, and the welding joint is 30-50mm.

7. A corona wire for electrostatic precipitators according to claim 1, wherein: The length of the cathode wire from the cathode tube side is less than 70mm, the width is less than 25mm, and the thickness is 1mm.

8. A corona wire for electrostatic precipitators according to claim 3, wherein: The sharp thorn and the cathode wire form a bending angle a: 15°-90°, and the sharp thorn length L: 15mm-18mm.

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