Anti-corrosion wet-type electrostatic dust collection equipment

By using a vinyl ester conductive fiberglass annular dust collector and an arc-shaped sealing plate structure in a wet electrostatic precipitator, the problem of adaptive adjustment when the airflow changes in traditional equipment is solved, achieving resource conservation and cost reduction.

CN121945296APending Publication Date: 2026-05-01金广恒环保技术(南京)股份有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
金广恒环保技术(南京)股份有限公司
Filing Date
2026-02-10
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional wet electrostatic precipitators cannot adaptively adjust to different airflow rates, resulting in power waste at low airflow rates and a lack of effective adjustment mechanisms.

Method used

The ring-shaped dust collector, made of vinyl ester conductive fiberglass, combines an arc-shaped design, a sealing plate, and a spring structure. By adjusting the position of the ring-shaped dust collector and the opening and closing of the sealing plate, the airflow can be adaptively adjusted to increase or decrease the processing capacity.

Benefits of technology

It enables dynamic adjustment based on airflow, reducing resource waste, lowering operating costs, and providing space for factory upgrades and expansion, thus improving equipment adaptability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121945296A_ABST
    Figure CN121945296A_ABST
Patent Text Reader

Abstract

The invention discloses anti-corrosion wet-type electrostatic dust collection equipment which comprises a dust collector barrel, an air inlet pipeline used for air inlet and an air outlet pipeline used for air outlet are arranged on the dust collector barrel, and an insulating dust collection body is arranged in the dust collector barrel. Only the bottom of the middle annular dust removal body of the annular dust removal bodies is not blocked, and the bottoms of the anode tubes on the annular dust removal bodies on the outer sides of the annular dust removal bodies are blocked by the sealing plates. When the air flow is large, a worker can control an adsorption assembly with the corresponding diameter to start adsorption of a top metal adsorption auxiliary block to drive an annular dust removal body with the corresponding diameter at the bottom to move downwards, and in the downward moving process, the bottom blockage of the annular dust removal body can be ejected open by an ejector rod, so that communication is achieved; the main body material of the whole insulating dust removal body is vinyl conductive glass fiber reinforced plastic, so that the device can be adaptively adjusted according to the actual air flow, the waste of resources is reduced, the use cost is reduced, and the device can be expanded and adaptively reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of wet electrostatic precipitator technology, and specifically relates to a corrosion-resistant wet electrostatic precipitator. Background Technology

[0002] The working principle of a wet electrostatic precipitator (and similar electrostatic precipitators) is as follows: a high-voltage DC generator converts alternating current into high-voltage direct current, which is then sent to the anode tube bundle and cathode system of the precipitator. A strong electric field is formed between each anode tube bundle (or collecting plate) and the cathode system (discharge lines in the tubes, also called cathode wires). Corona discharge through the cathode wires ionizes the air molecules, instantly generating a large number of electrons and positive and negative ions. When the flue gas after wet dust removal and desulfurization passes through the anode tube bundle, the moisture-containing particles are forcibly charged and move directionally under the influence of the electric field force (Coulomb force), forming the medium for capturing the moisture-containing particles. These negatively charged particles, under the influence of the high-voltage electric field, move directionally to the inner panel of the anode tube bundle, where they release electrons. The moisture-containing particles are then collected and, under gravity, flow to or are washed into the recovery device below the precipitator. This achieves the purpose of purification, dust removal, and demisting.

[0003] Traditional wet electrostatic precipitators cannot adapt to the size of the airflow in actual use by adjusting the operation of the anode tube and cathode wire. In order to improve the removal efficiency and processing velocity of more gas, traditional equipment will expand and increase the processing capacity, resulting in power waste when encountering smaller airflow. There is no good adaptive adjustment structure to achieve the relevant purpose. Summary of the Invention

[0004] The purpose of this invention is to provide a corrosion-resistant wet electrostatic precipitator to solve the problem that traditional equipment is expanded and enlarged to accommodate larger workloads, resulting in power waste when encountering smaller airflow rates, and there is no good adaptive adjustment structure available.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a corrosion-resistant wet electrostatic precipitator, comprising a dust collector cylinder, wherein the dust collector cylinder is provided with an air inlet pipe for air intake and an air outlet pipe for air exhaust, and an insulating dust collector body is disposed inside the dust collector cylinder. The main body of the insulating dust collector body is made of vinyl ester conductive fiberglass to achieve high conductivity and corrosion resistance. The insulating dust collector body comprises:

[0006] Multiple annular dust collectors are arranged in a complete circle and are parallel to each other. Each annular dust collector has several holes with embedded anode tubes inside. Each anode tube has a cathode wire on its central axis. Each cathode wire has a frame on its top for overall stability and fixation, and also for circuit laying.

[0007] The bottom of each of the annular dust collectors is provided with an arc shape, so that the bottom of the entire insulating dust collector is formed in an arc shape for guiding the gas.

[0008] Preferably, a plurality of fixed connecting rods are fixed to the top of the plurality of annular dust collectors, and an adsorption component is provided in the middle of the plurality of fixed connecting rods and the fixed connecting rods pass through the adsorption component. A metal adsorption auxiliary block is fixed to the end of the fixed connecting rod away from the annular dust collector, and a second spring is provided between the metal adsorption auxiliary block and the adsorption component and the second spring is sleeved on the outside of the fixed connecting rod.

[0009] Preferably, the adsorption assembly consists of multiple electromagnets, and each electromagnet is used to adsorb each metal adsorption auxiliary block to achieve the compression of the metal adsorption auxiliary block by pressing down the bottom annular dust collector body of the compression spring.

[0010] Preferably, the plurality of annular dust collectors are constructed one by one from the inner annular dust collector to the outer annular dust collector. When the inner annular dust collector moves downward, it will drive the outer annular dust collector to move downward. Furthermore, a moving groove is provided on the outer side of the inner annular dust collector, and a spring is provided inside the moving groove to buffer the two adjacent annular dust collectors. The height of the outer moving groove is twice that of the moving groove on the inner annular dust collector.

[0011] Preferably, a second frame is provided at the bottom of the insulating dust collector, the second frame comprising:

[0012] An annular frame is fixedly connected to the inner wall of the dust collector cylinder at the top outer edge of the air inlet pipe. The annular frame consists of multiple rings that are fixed to each other, and each ring corresponds to an annular dust collector body. Several top rods are fixed to the top of the annular frame. Sealing plates are hinged to the bottom of the anode tubes inside the annular dust collector bodies. The sealing plates are hinged to the annular dust collector bodies from the lower side of the arc and can only rotate upwards. The downward rotation is restricted by the limiting block, and the limiting block does not affect the upward rotation.

[0013] Preferably, each of the push rods corresponds to a number of sealing plates, and is used to push the top sealing plate upward to open the communication channel after the annular dust collector moves downward.

[0014] Preferably, a spray frame is provided at the top of the inside of the dust collector cylinder. The spray frame is located at the top of a frame and has several spray nozzles. The spray frame is connected to an external water inlet device.

[0015] Preferably, the insulating dust collector body, frame one, frame two and spray frame are all made of insulating and corrosion-resistant material. The dust collector cylinder is also equipped with a central control device to control the operation of several cathode wires, spray frame and adsorption components.

[0016] The technical effects and advantages of this invention are as follows: 1. Only the bottom of the middle annular dust collector is not blocked, while the bottom of the anode tubes on the outer annular dust collectors is blocked by the sealing plate. This allows for operation with a smaller airflow. When the airflow is larger, the operator can control the adsorption component of the corresponding diameter to start adsorption. The metal adsorption auxiliary block at the top drives the annular dust collector of the corresponding diameter at the bottom to move downward. During the downward movement, the blockage at the bottom of the annular dust collector will be opened by the top rod, achieving connection. Thus, this device can be adaptively adjusted according to the actual airflow, reducing resource waste and operating costs. It also provides upgrade space for the factory, allowing for expansion or adaptive reduction. The limiting block on one side of the sealing plate to prevent it from rotating downward and falling is not shown in the diagram. This is existing technology and can be set by the operator according to the actual situation. For example, a protrusion can be set at the bottom edge of the annular dust collector to prevent it from falling, but it will not hinder the upward rotation and connection.

[0017] 2. By setting up the moving groove and spring, as shown in the figure, during the process of the middle annular dust collector moving down and driving the outer annular dust collector down, the third layer moving groove is higher than the spring to reserve a sinking elastic space, so that the third layer will not move down but will only compress the spring of the third layer. The whole can selectively expand the number of layers and increase the corresponding working diameter according to the situation to match different air flow rates.

[0018] 3. By setting up the arc shape and sealing plate, the airflow can be guided by the arc shape and converge into the annular dust collector in the middle working state. The sealing plate is used to block and promote the formation of the entire airflow guidance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall internal structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the insulating dust collector of the present invention;

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of section A;

[0022] Figure 4 For the present invention Figure 2 Schematic diagram of section B in the middle;

[0023] Figure 5 This is a bottom view of the insulating dust removal body of the present invention;

[0024] Figure 6 For the present invention Figure 5 Schematic diagram of the C-section structure;

[0025] Figure 7 This is a schematic diagram of the arc-shaped structure of the present invention;

[0026] Figure 8 This is a detailed schematic diagram of the movable slot installation structure of the present invention.

[0027] In the diagram: 1. Frame 1; 2. Dust collector cylinder; 3. Air outlet pipe; 4. Spray frame; 5. Insulating dust collector body; 501. Annular dust collector body; 502. Cathode wire; 503. Arc shape; 504. Moving groove; 505. Spring; 6. Frame 2; 601. Annular frame; 602. Top rod; 603. Sealing plate; 7. Air inlet pipe; 8. Fixed connecting rod; 9. Adsorption assembly; 901. Electromagnet; 10. Spring 2; 11. Fixed frame; 12. Metal adsorption auxiliary block. Detailed Implementation

[0028] 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.

[0029] This invention provides, for example Figures 1-8 The corrosion-resistant wet electrostatic precipitator shown includes a dust collector cylinder 2, with an inlet pipe 7 for air intake and an outlet pipe 3 for air exhaust. An insulating dust collector body 5 is installed inside the dust collector cylinder 2. The main material of the insulating dust collector body 5 is vinyl ester conductive fiberglass to achieve high conductivity and corrosion resistance. Vinyl ester synthetic resin is used as a binder, glass fiber and its products are used as reinforcing materials, and carbon fiber products are used as conductive materials. The insulating dust collector body 5 includes:

[0030] Multiple annular dust collectors 501 form a complete circle and are arranged in parallel side by side. Several holes with embedded anode tubes are opened inside the annular dust collectors 501, and cathode wires 502 are set on the central axis inside the anode tubes. A frame 1 is set on the top of the multiple cathode wires 502 for overall stability and fixation, and also for circuit laying.

[0031] Multiple annular dust collectors 501 have arc-shaped sections 503 at their bottoms, forming an arc-shaped bottom for guiding gas.

[0032] Specifically, a number of fixed connecting rods 8 are fixed to the top of multiple annular dust collectors 501. An adsorption component 9 is provided in the middle of the multiple fixed connecting rods 8 and the fixed connecting rods 8 pass through the adsorption component 9. A metal adsorption auxiliary block 12 is fixed to the end of the fixed connecting rod 8 away from the annular dust collector 501. A second spring 10 is provided between the metal adsorption auxiliary block 12 and the adsorption component 9 and the second spring 10 is sleeved on the outside of the fixed connecting rod 8.

[0033] Specifically, the adsorption component 9 consists of multiple electromagnets 901, and each electromagnet 901 is used to adsorb the metal adsorption auxiliary block 12 for each metal adsorption auxiliary block 12 to achieve the compression of the spring 2 10 to press down its bottom annular dust collector 501.

[0034] Specifically, a spray frame 4 is installed at the top of the inside of the dust collector cylinder 2. The spray frame 4 is located at the top of the frame 1 and has several spray nozzles. The spray frame 4 is connected to an external water inlet device.

[0035] Specifically, the insulating dust collector body 5, frame one 1, frame two 6 and spray frame 4 are all made of insulating and corrosion-resistant materials. The dust collector cylinder 2 is also equipped with a central control device to control the operation of several cathode wires 502, spray frame 4 and adsorption components 9.

[0036] Working Principle: This invention introduces air through the air intake pipe 7. In the initial state, the bottom of the insulating dust collector 5 is arc-shaped, and its top is horizontal. Multiple annular dust collectors 501 are suspended on the frame 1 by several springs 10. At this time, only the bottom of the middle annular dust collector 501 is not blocked, while the bottoms of the anode tubes on the outer annular dust collectors 501 are blocked by the sealing plate 603. This configuration allows for operation with a smaller airflow. When the airflow is larger, the operator can control the adsorption component 9 of the corresponding diameter to start adsorption. The top metal adsorption auxiliary block 12 is also activated. The annular dust collector 501, corresponding to the diameter of the bottom, moves downward. During the downward movement, the blockage at the bottom of the annular dust collector 501 is pushed open by the top rod 602, achieving connection. This allows the device to be adaptively adjusted according to the actual airflow, reducing resource waste and operating costs. It also provides the factory with upgrade space, allowing for expansion or adaptive reduction. The limiting block on one side of the sealing plate 603 to prevent it from rotating downward and falling is not shown in the diagram. This is existing technology, and the operator can set it according to the actual situation. For example, a protrusion can be set at the bottom edge of the annular dust collector 501 to prevent it from falling, but without hindering the upward rotation and connection.

[0037] Multiple annular dust collectors 501 are constructed one by one from the inner annular dust collector 501 to the outer annular dust collector 501. When the inner annular dust collector 501 moves downward, it will drive the outer annular dust collector 501 to move downward. The outer side of the inner annular dust collector 501 is provided with a moving groove 504 and a spring 505 is provided inside the moving groove 504 to buffer the two adjacent annular dust collectors 501. The height of the outer moving groove 504 is twice that of the moving groove 504 on the inner annular dust collector 501.

[0038] Example 2, based on Example 1, utilizes the movable slot 504 and spring 505, as follows: Figure 8 As shown, during the process of the middle annular dust collector 501 moving down and causing the outer annular dust collector 501 to move down, the third layer moving groove 504 is higher than the spring 505 and a sinking elastic space is reserved, so that the third layer will not move down but will only compress the spring 505 of the third layer. The whole can selectively expand the number of layers and increase the corresponding working diameter according to the situation to match different air flow rates.

[0039] Multiple annular dust collectors 501 are constructed one by one from the inner annular dust collector 501 to the outer annular dust collector 501. When the inner annular dust collector 501 moves downward, it will drive the outer annular dust collector 501 to move downward. The outer side of the inner annular dust collector 501 is provided with a moving groove 504 and a spring 505 is provided inside the moving groove 504 to buffer the two adjacent annular dust collectors 501. The height of the outer moving groove 504 is twice that of the moving groove 504 on the inner annular dust collector 501.

[0040] Several push rods 602 correspond one-to-one with several sealing plates 603, and are used to trigger the top sealing plate 603 to open the connecting channel upward after the annular dust collector 501 moves downward.

[0041] In Example 3, based on Example 2, by setting the arc 503 and the sealing plate 603, an airflow guide can be formed according to the setting of the arc 503, which converges to the annular dust collector 501 in the middle working state for operation, and the sealing plate 603 is used to block and promote the formation of the entire airflow guide.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A corrosion-resistant wet electrostatic precipitator, comprising a dust collector cylinder (2), wherein the dust collector cylinder (2) is provided with an air inlet pipe (7) for air intake and an air outlet pipe (3) for air exhaust, and an insulating dust collector body (5) is provided inside the dust collector cylinder (2), wherein the main material of the integral insulating dust collector body (5) is vinyl ester conductive fiberglass to achieve high conductivity and corrosion resistance, characterized in that: The insulating dust collector (5) includes: Multiple annular dust collectors (501) are arranged in a complete circle and are parallel to each other. The annular dust collectors (501) have several holes with embedded anode tubes inside. A cathode wire (502) is provided on the central axis inside the anode tube. A frame (1) is provided on the top of the cathode wires (502) for overall stability and fixation and for circuit laying. The bottom of each of the multiple annular dust collectors (501) is provided with an arc (503) so that the bottom of the insulating dust collector (5) is formed in an arc shape for guiding the gas.

2. The corrosion-resistant wet electrostatic precipitator according to claim 1, characterized in that: A plurality of fixed connecting rods (8) are fixed to the top of the plurality of annular dust collectors (501). An adsorption assembly (9) is provided in the middle of the plurality of fixed connecting rods (8) and the fixed connecting rods (8) pass through the adsorption assembly (9). A metal adsorption auxiliary block (12) is fixed to the end of the fixed connecting rod (8) away from the annular dust collector (501). A spring (10) is provided between the metal adsorption auxiliary block (12) and the adsorption assembly (9) and the spring (10) is sleeved on the outside of the fixed connecting rod (8).

3. The corrosion-resistant wet electrostatic precipitator according to claim 2, characterized in that: The adsorption assembly (9) consists of multiple electromagnets (901) and each electromagnet (901) is used to adsorb the metal adsorption auxiliary block (12) by pressing the second spring (10) down its bottom annular dust collector (501).

4. The corrosion-resistant wet electrostatic precipitator according to claim 3, characterized in that: Multiple annular dust collectors (501) are constructed one by one from the inner annular dust collector (501) to the outer annular dust collector (501). When the inner annular dust collector (501) moves downward, it will drive the outer annular dust collector (501) to move downward. A moving groove (504) is provided on the outer side of the inner annular dust collector (501), and a spring (505) is provided inside the moving groove (504) to buffer the two adjacent annular dust collectors (501). The height of the outer moving groove (504) is twice that of the moving groove (504) on the inner annular dust collector (501).

5. The corrosion-resistant wet electrostatic precipitator according to claim 2, characterized in that: The bottom of the insulating dust collector (5) is provided with a second frame (6), the second frame (6) comprising: The annular frame (601) is fixedly connected to the inner wall of the dust collector cylinder (2) at the top outer edge of the air inlet pipe (7). The annular frame (601) consists of multiple rings fixed to each other, and each ring corresponds to an annular dust collector body (501). Several top rods (602) are fixed on the top of the annular frame (601). The bottom of the anode tube inside the several annular dust collector bodies (501) is hinged with a sealing plate (603). The sealing plate (603) is hinged to the annular dust collector body (501) by the lower side of the arc and can only rotate upward. The downward rotation is restricted by the limiting block, and the limiting block does not affect the upward rotation.

6. The corrosion-resistant wet electrostatic precipitator according to claim 3, characterized in that: Each of the aforementioned push rods (602) corresponds to one of the aforementioned sealing plates (603), and is used to trigger the top sealing plate (603) to open the communication channel upward after the annular dust collector (501) moves downward.

7. The corrosion-resistant wet electrostatic precipitator according to claim 1, characterized in that: The dust collector cylinder (2) is equipped with a spray frame (4) at the top inside. The spray frame (4) is located on the top of the frame (1) and has several spray nozzles. The spray frame (4) is connected to an external water inlet device.

8. The corrosion-resistant wet electrostatic precipitator according to claim 1, characterized in that: The insulating dust collector (5), frame one (1), frame two (6) and spray frame (4) are all made of insulating and corrosion resistant material. The dust collector cylinder (2) is also equipped with a central control device to control several cathode wires (502), spray frame (4) and adsorption components (9) to work.