A dust collecting structure of a final stage electric field of an electric dust collector

Abstract

This utility model relates to the field of electrostatic precipitator technology, and its purpose is to provide a dust collection structure for the final stage electric field of an electrostatic precipitator, including a composite cathode wire and a dust collection plate. The composite cathode wire is a novel herringbone wire or a novel wide-body cathode wire. This utility model uses a novel herringbone wire or a novel wide-body cathode wire as the discharge zone of the final stage electric field of the electrostatic precipitator, resulting in a small corona current. It forms a uniform line-to-plate electric field with high and uniform electric field strength, which is beneficial for collecting dust with high resistivity and fine dust. It also helps prevent back corona phenomena, increasing the applicable range of dust resistivity for the electrostatic precipitator and significantly improving the dust removal efficiency and operational stability of the electrostatic precipitator.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic precipitator technology, and in particular to a dust collection structure for the final stage electric field of an electrostatic precipitator. Background Technology

[0002] Electrostatic precipitators utilize a strong electric field generated by high voltage to locally ionize gas, and then use the electric field force to separate particles (solid or liquid) from the gas flow. An electrostatic precipitator has multiple independent electric fields along the gas flow direction; these are the electric field stages of the precipitator. These independent electric fields are typically arranged sequentially along the gas flow direction, generally including an inlet electric field, intermediate electric fields, and a final stage electric field. Because the dust concentration in the final stage electric field is very low and the particle size is fine, existing electrostatic precipitators suffer from low dust collection efficiency and difficulty in collecting fine dust particles in the final stage. Utility Model Content

[0003] The purpose of this invention is to provide a final-stage electric field dust collection structure for an electrostatic precipitator to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A dust collection structure for the final stage of an electrostatic precipitator includes a composite cathode wire and a dust collection plate installed in the final stage electric field, wherein the composite cathode wire is a novel herringbone wire or a novel wide-body cathode wire.

[0006] The novel fishbone line includes a fishbone line connected to a frame and an auxiliary dust collection plate. The fishbone line includes an electrode line with a plurality of discharge needles evenly arranged on the electrode line.

[0007] The end of the discharge needle has a flat-headed structure.

[0008] The novel wide-body cathode wire includes an electrode wire and an auxiliary electrode plate covering the outside of the electrode wire.

[0009] Several opening slots are provided on both sides of the auxiliary electrode plate.

[0010] The opening slot is an isosceles trapezoidal structure.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] This invention employs a novel herringbone wire or a novel wide-body cathode wire as the discharge zone of the final stage electric field in an electrostatic precipitator. This results in a small corona current, forming a uniform line-to-plate electric field with high and uniform electric field strength and weak ion current. This is beneficial for collecting dust with high resistivity and fine dust particles, while also preventing back corona discharge and increasing the applicability of the electrostatic precipitator to dust resistivity. Furthermore, the use of auxiliary plates in the novel wide-body cathode wire not only allows it to function as a support but also effectively collects positive ion dust, increasing the dust collection area, reducing dust accumulation on the discharge electrodes, and significantly improving the dust removal efficiency and operational stability of the electrostatic precipitator. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0014] Figure 2 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0015] Attached figures and their names: 1. New type of fishbone line; 2. Auxiliary dust collection plate; 3. Connector; 4. Auxiliary electrode plate; 5. Opening groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] Example 1

[0019] like Figure 1 As shown, the present invention discloses a final stage electric field dust collection structure for an electrostatic precipitator, comprising a composite cathode wire and a dust collection plate installed in the final stage electric field. The composite cathode wire is a novel herringbone wire, which includes a herringbone wire 1 connected to a frame and an auxiliary dust collection plate 2. The herringbone wire 1 includes an electrode wire, on which a plurality of discharge needles are evenly arranged, and the ends of the discharge needles are flat-headed.

[0020] Example 1 employs a unique flat-headed herringbone wire design. When voltage is applied to the electrostatic precipitator, the novel herringbone wire, acting as the cathode, generates a weak corona discharge. This weak corona discharge is significant. On one hand, it can effectively charge extremely fine dust particles in the final electric field, thereby achieving the capture of these fine dust particles and greatly improving dust collection efficiency, especially for tiny dust particles that are difficult to handle with traditional dust collection methods. On the other hand, this novel dust collection method also has energy-saving advantages. In practical applications, compared to traditional dust collection devices, it can reduce energy consumption and lower operating costs for enterprises while ensuring dust collection efficiency, aligning with the current trend of environmental protection and energy conservation.

[0021] Example 2

[0022] like Figure 2 As shown, the difference from the utility model is that the cathode wire is a new type of wide-body cathode wire. The new type of wide-body cathode wire includes an electrode wire and an auxiliary electrode plate 4 covering the outside of the electrode wire. Several opening slots 5 are opened on both sides of the auxiliary electrode plate 4. The opening slots are isosceles trapezoidal structures. A connector 3 for installing the new type of wide-body cathode wire is provided in the middle of the auxiliary electrode plate 4.

[0023] Example 2 integrates the cathode discharge wire and the cathode auxiliary plate to form a unique structure. In this integrated design, the auxiliary electrode possesses discharge performance, allowing the device to function as both a cathode discharge wire and an auxiliary plate. From a structural safety perspective, the auxiliary plate can serve as a support, simplifying the original wire structure. This integrated design reduces the weight of the small frame and optimizes its structure, comprehensively improving the safety of the small frame structure. Functionally, it combines the functions of a cathode discharge wire and a cathode auxiliary plate. The cathode discharge wire effectively generates corona discharge, ionizing the gas and creating conditions for dust particles to become charged; while the auxiliary plate increases the specific dust collection area of ​​the electrostatic precipitator, further improving dust collection efficiency. Simultaneously, it functions similarly to a dust collection plate during the dust collection process, more efficiently capturing positively charged dust particles and effectively reducing dust emissions.

Claims

1. A dust collection structure for the final stage of an electrostatic precipitator, characterized in that: It includes a composite cathode wire and a dust collection plate installed in the final stage electric field, wherein the composite cathode wire is a new type of fishbone wire or a new type of wide-body cathode wire; The novel fishbone line includes a fishbone line (1) connected to the frame and an auxiliary dust collection plate (2). The fishbone line (1) includes an electrode line with a plurality of discharge needles evenly arranged on the electrode line. The novel wide-body cathode wire includes an electrode wire and an auxiliary electrode plate (4) covering the outside of the electrode wire. Several opening slots (5) are provided on both sides of the auxiliary electrode plate (4).

2. The final stage electric field dust collection structure of an electrostatic precipitator according to claim 1, characterized in that: The end of the discharge needle has a flat-headed structure.

3. The final stage electric field dust collection structure of an electrostatic precipitator according to claim 1, characterized in that: The opening groove (5) is an isosceles trapezoidal structure.

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