A wet electrostatic precipitator

Abstract

This utility model provides a wet electrostatic precipitator, relating to the field of dust collector technology. The wet electrostatic precipitator includes a housing, a flushing device, an anode dust removal tube, a cathode hanger, and a gas-liquid separation device. The housing includes multiple dust removal chambers connected sequentially from top to bottom; the flushing device is disposed within each dust removal chamber and connected to a water supply device; the anode dust removal tube is fixedly disposed vertically within each dust removal chamber; the cathode hanger corresponds to and is fixedly disposed within the anode dust removal tube; the gas-liquid separation device is disposed at the bottom of each dust removal chamber and below the anode dust removal tube, and includes an exhaust port and a drain port. The exhaust port is connected to a lower gas path, and the drain port is connected to the outside environment; the exhaust port is higher than the drain port. The wet electrostatic precipitator of this application can improve the cleaning effect of dead angles when cleaning electrodes in existing wet electrostatic precipitators.

Description

Technical Field

[0001] This utility model relates to the field of dust collector technology, and in particular to a wet electrostatic dust removal device. Background Technology

[0002] Sulfur recovery units, as key environmental protection equipment for treating acidic gases, effectively remove hydrogen sulfide from acidic gases through a "three-stage Claus + flue gas desulfurization" process. This not only ensures that the discharged flue gas meets local environmental protection standards but also produces byproducts such as sulfur and ammonium sulfate, combining environmental benefits with resource recovery value. However, the flue gas treated by the ammonia desulfurization unit exhibits a significant tailing phenomenon, affecting not only the visual appearance of the unit's operation but also negatively impacting the surrounding ecological environment. Regarding pollutant concentrations, the measured concentration of particulate matter in the flue gas remains consistently high, failing to meet compliance emission requirements. Wet electrostatic precipitators are a common type of dust removal equipment, using cleaning fluid to wash the electrodes to remove dust. However, existing wet electrostatic precipitators are large in size and cannot efficiently and comprehensively clean the electrodes, leaving blind spots during cleaning. Utility Model Content

[0003] This invention provides a wet electrostatic precipitator to improve the cleaning effect of dead corners when cleaning electrodes in existing wet electrostatic precipitators.

[0004] This utility model provides a wet electrostatic precipitator, comprising a housing, a flushing device, an anode dust removal tube, a cathode hanger, and a gas-liquid separation device. The housing includes multiple dust removal chambers connected sequentially from top to bottom; the flushing device is disposed within each dust removal chamber and connected to a water supply device; the anode dust removal tube is fixedly disposed vertically within each dust removal chamber; the cathode hanger corresponds to the anode dust removal tube and is fixedly disposed within the anode dust removal tube; the gas-liquid separation device is disposed at the bottom of each dust removal chamber and below the anode dust removal tube, the gas-liquid separation device including an exhaust port and a drain port, the exhaust port being connected to a lower gas path, and the drain port being connected to the outside environment, the exhaust port being higher than the drain port.

[0005] In one embodiment of the present invention, the gas-liquid separation device includes a plurality of vent caps, each vent cap including an exhaust pipe and a cover plate fixedly disposed on the top of the exhaust pipe. The diameter of the cover plate is larger than the diameter of the exhaust pipe. An exhaust port for gas passage is provided between the exhaust pipe and the cover plate, and the height of the exhaust port is higher than the height of the drain port.

[0006] In one embodiment of the present invention, the gas-liquid separation device is fixedly installed in the dust removal chamber by an isolation plate. The isolation plate is provided with an exhaust hole adapted to the exhaust pipe, and the exhaust pipe is provided with a circumferential seal along the outer edge of the exhaust hole.

[0007] In one embodiment of the present invention, the wet electrostatic precipitator further includes a fan and an electric heater, and an air inlet is provided on the dust removal chamber, wherein the fan, the electric heater, and the air inlet are connected in sequence.

[0008] In one embodiment of the present invention, the rinsing device includes a rinsing pipe and a spray device disposed on the rinsing pipe, and the rinsing pipe is connected to the water supply device.

[0009] In one embodiment of the present invention, the spraying device includes a rotating nozzle, which is rotatably connected to the flushing pipe via a universal joint, and the spray angle of the rotating nozzle is adjustable.

[0010] In one embodiment of the present invention, the cathode rod is fixedly installed inside the anode dust removal tube by a fixing device. The fixing device includes a crossbeam and a fixing frame. The crossbeam is fixedly installed above the anode dust removal tube, and the fixing frame is installed below the anode dust removal tube. One end of the cathode rod is fixedly connected to the crossbeam, and the other end of the cathode rod is fixedly connected to the fixing frame.

[0011] In one embodiment of the present invention, the fixed frame includes an elastic buffer assembly, which includes a spring and a damper. The spring is sleeved on the end of the cathode rod, and one end of the damper is fixedly connected to the fixed frame, while the other end abuts against the cathode rod.

[0012] In one embodiment of this utility model, the cross-section of the anode dust removal tube is a regular hexagon.

[0013] In one embodiment of the present invention, each of the dust removal chambers is provided with a plurality of anode dust removal tubes, and the plurality of anode dust removal tubes are combined to form a honeycomb structure.

[0014] The beneficial effects of this utility model are as follows: The wet electrostatic dust removal device proposed in this utility model includes multiple dust removal chambers connected from top to bottom. Each dust removal chamber is equipped with a cleaning device, an anode dust removal pipe, a cathode hanger, and a gas-liquid separation device. Compared with the top-to-bottom series flushing method, it can reduce the cleaning dead corners in the lower dust removal chamber, reduce the particle residue in the dust removal chamber, and help improve the dust removal efficiency. The gas-liquid separation device can prevent water from the upper dust removal chamber from flowing into the lower dust removal chamber during cleaning, ensuring the independent operation of each dust removal chamber. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the structure of a wet electrostatic precipitator provided in one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram showing the distribution of the anode dust removal tubes in a wet electrostatic precipitator provided in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the vent cap in a wet electrostatic precipitator provided in one embodiment of the present invention;

[0020] Figure 4 This is a top view schematic diagram of the vent cap in a wet electrostatic dust removal device provided in one embodiment of this utility model.

[0021] The attached figures are labeled as follows:

[0022] 100. Shell; 110. Dust removal chamber; 111. First dust removal chamber; 112. Second dust removal chamber; 120. Air inlet; 200. Flushing device; 210. Water supply device; 211. Three-way valve; 212. First pipeline; 213. Second pipeline; 2131. Flow regulating valve; 214. Third pipeline; 220. Flushing pipe; 230. Spray device; 240. Air supply device; 300. Anode dust removal pipe; 400. Cathode hanger; 500. Gas-liquid separator; 510. Vent cap; 511. Exhaust pipe; 512. Cover plate; 513. Exhaust port; 514. Drain port; 520. Isolation plate; 600. Fan; 700. Electric heater; 800. Fixing device; 810. Crossbeam; 820. Fixing frame. Detailed Implementation

[0023] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0026] In existing technologies, sulfur recovery devices achieve stable particulate matter levels in flue gas at 35 mg / Nm³ during actual emissions. 3 This value is around 20 mg / Nm³, which far exceeds the local environmental protection requirement of "not exceeding 20 mg / Nm³". 3 The limit standard is "". Even more serious is the impact of fluctuations in the composition of acidic gas from upstream coal gasification, which affects the NO content in the flue gas emitted by sulfur recovery units. X The concentration was maintained at 100 mg / Nm for a long period of time. 3 The above. This concentration is not only higher than the "40 mg / Nm³" stated in the project's environmental impact assessment approval, but also... 3 The following indicators fail to meet the "100mg / Nm³" requirement of the "Emission Standard for Pollutants from Petroleum Refining Industry". 3 The following emission standards apply. The industry commonly uses wet scrubbers to treat flue gas emissions. A wet scrubber's structure mainly consists of an anode module and a cathode hanger. By applying a 10kV high-voltage direct current, an electric field is generated between the anode module and the cathode hanger, causing aerosols and fine dust particles in the flue gas to become charged, agglomerate into larger particles, and then adsorb onto the surface of the anode honeycomb structure, thus purifying the flue gas. Solid debris accumulated on the anode honeycomb structure surface is removed through periodic rinsing. However, existing wet scrubbers are relatively large, resulting in reduced water flow impact at the bottom. Furthermore, the excessive height makes it difficult for the water jet to completely cover the inner wall of the container, leading to dead zones during cleaning, poor cleaning efficiency, and potential impact on subsequent adsorption. Therefore, this application provides a wet electrostatic precipitator to alleviate this problem.

[0027] Please see Figure 1 , Figure 3 and Figure 4The wet electrostatic precipitator provided by this utility model includes a housing 100, a rinsing device 200, an anode dust removal pipe 300, a cathode hanger 400, and a gas-liquid separation device 500. The housing 100 includes multiple dust removal chambers 110 connected sequentially from top to bottom, with the air passages of the multiple dust removal chambers 110 connected in series. The rinsing device 200 is disposed in the dust removal chamber 110 and connected to a water supply device 210. The anode dust removal pipe 300 is fixedly disposed vertically in the dust removal chamber 110. The cathode hanger 400 corresponds to the anode dust removal pipe 300 and is fixedly disposed in the anode dust removal pipe 300. The gas-liquid separation device 500 is disposed at the bottom of each dust removal chamber 110 and located below the anode dust removal pipe 300. The gas-liquid separation device 500 includes an exhaust port 513 and a drain port 514. The exhaust port 513 is connected to the lower air passage, and the drain port 514 is connected to the outside. The exhaust port 513 is higher than the drain port 514. The exhaust port 513 of the gas-liquid separator 500 in the upper dust removal chamber 110 is connected to the air inlet of the lower dust removal chamber 110, and the exhaust port 513 of the gas-liquid separator 500 in the bottom dust removal chamber 110 is connected to an external air path. In this wet electrostatic precipitator, the air paths of multiple dust removal chambers 110 are connected in series, and each dust removal chamber 110 can operate independently. This reduces the number of cleaning dead zones within the dust removal chambers 110, reduces particle residue within the dust removal chambers 110, and helps improve dust removal efficiency.

[0028] Please see Figure 1 In one embodiment, the housing 100 includes two dust removal chambers 110, referred to as the first dust removal chamber 111 and the second dust removal chamber 112, respectively. The first dust removal chamber 111 and the second dust removal chamber 112 are connected through a gas-liquid separation device 500 in the first dust removal chamber 111. An air inlet is provided at the top of the first dust removal chamber 111, and an air outlet is provided at the bottom of the second dust removal chamber 112. The air inlet at the top of the first dust removal chamber 111 is connected to the air outlet of the desulfurization tower via a pipeline, and the air outlet at the bottom of the second dust removal chamber 112 is connected to the air inlet of the chimney via a pipeline. The first dust removal chamber 111 and the second dust removal chamber 112 are connected in series and operate independently. The first dust removal chamber 111 can be cleaned while the second dust removal chamber 112 is running, and the second dust removal chamber 112 can be cleaned while the first dust removal chamber 111 is running, thereby improving the dust removal efficiency of the wet electrostatic precipitator. The exhaust gas treated by the wet electrostatic precipitator usually has a high temperature; if the high-temperature exhaust gas is directly discharged, the heat energy will be wasted. In some embodiments, in order to improve energy utilization, a heat exchanger is installed on the pipeline between the air outlet of the second dust removal chamber 112 and the air inlet of the chimney. The heat exchanger can recover the waste heat of the gas discharged from the wet electrostatic precipitator and use it to preheat the cold air, cold water or other media that need to be heated, thereby reducing the consumption of additional energy and realizing the cascade utilization of energy.

[0029] Please see Figure 1 and Figure 2In one embodiment, each dust collection chamber 110 is provided with multiple anode dust collection tubes 300 and multiple cathode hangers 400. The number of anode dust collection tubes 300 and cathode hangers 400 is not limited and can be adjusted according to actual needs, ensuring that the number of anode dust collection tubes 300 and cathode hangers 400 is consistent, i.e., one anode dust collection tube 300 corresponds to one cathode hanger 400. In this embodiment, the cross-section of the anode dust collection tube 300 is a regular hexagon. The electric field strength is higher at the corners of the hexagon, easily forming a strong local electric field, and the dust charging efficiency is higher near the corners. Multiple anode dust collection tubes 300 are combined to form a honeycomb structure, which not only improves space utilization, but also makes the airflow channels regular and dense, resulting in a more uniform airflow distribution, suitable for handling large-flow, high-dust-concentration gases. Furthermore, the corners of the hexagon have a certain disturbance effect on the airflow, which can increase the contact probability between dust and the electric field, improving dust collection efficiency.

[0030] Please see Figure 1 , Figure 3 and Figure 4 In one embodiment, the gas-liquid separation device 500 includes multiple vent caps 510. Each vent cap 510 includes an exhaust pipe 511 and a cover plate 512 fixedly disposed on top of the exhaust pipe 511. The diameter of the cover plate 512 is larger than the diameter of the exhaust pipe 511. An exhaust port 513 for gas passage is provided between the exhaust pipe 511 and the cover plate 512. A drain port 514 is disposed on the side wall of the dust removal chamber 110, and the exhaust port 513 is higher than the drain port 514. When cleaning the anode dust removal pipe 300, gas containing liquid particles flows down from above the vent caps 510 and impacts the cover plate 512. Under the action of gravity and inertia, the liquid particles adhere to the cover plate 512 and converge and flow downward. The water flows out through the drain port 514, and the gas is discharged to the lower gas path through the exhaust port 513, thereby achieving gas-liquid separation. For example, the cross-section of the cover plate 512 and the exhaust pipe 511 is circular. The diameter of the cover plate 512 is larger than the diameter of the exhaust pipe 511, which can effectively prevent liquid from entering the exhaust pipe 511 and being discharged with the gas. There is no limit to the number and size of the vent caps 510, which can be adjusted according to actual needs.

[0031] Please see Figure 1 In one embodiment, the gas-liquid separator 500 is fixedly installed in the dust removal chamber 110 by an isolation plate 520. The isolation plate 520 is provided with an exhaust hole adapted to the exhaust pipe 511. The exhaust pipe 511 is circumferentially sealed with an exhaust hole along its outer edge, so that the gas-liquid separator 500 can be stably installed in the dust removal chamber 110 and ensures that gas can only enter the vent cap 510 from the exhaust port 513 of the exhaust pipe 511 for gas-liquid separation, avoiding gas leakage and improving the efficiency and effect of gas-liquid separation. At the same time, the isolation plate 520 also provides a certain support, enhancing the stability of the gas-liquid separator 500.

[0032] Please see Figure 1 In one embodiment, the rinsing device 200 includes a rinsing pipe 220 and a spray device 230 disposed on the rinsing pipe 220, the rinsing pipe 220 being connected to a water supply device 210. After the wet electrostatic precipitator has been running for a period of time, dust will accumulate inside the dust removal chamber 110, affecting the dust removal effect. At this time, the rinsing device 200 starts working, the water supply device 210 delivers rinsing liquid to the spray device 230 through the rinsing pipe 220, the spray device 230 atomizes the rinsing liquid and sprays it onto the surfaces of electrodes and other components, thereby removing the attached dust. In some embodiments, the spray device 230 includes a rotating nozzle, the rotating nozzle being rotatably connected to the rinsing pipe 220 via a universal joint, making the spray angle of the rotating nozzle adjustable. This allows for flexible adjustment of the spray angle of the rotating nozzle according to the dust adhesion in different areas inside the wet electrostatic precipitator, ensuring that the rinsing liquid can fully cover the areas that need cleaning. In some embodiments, the surface of the rotary nozzle is provided with an anti-corrosion coating, which can effectively extend the service life of the rotary nozzle, ensure the stable operation of the spray device 230, and improve the reliability of the rinsing device 200.

[0033] Please see Figure 1 Each dust removal chamber 110 is equipped with a rinsing device 200. In one embodiment, the rinsing device 200 is connected to the water supply device 210 via a pipeline. Each rinsing device 200 may correspond to one water supply device 210, or multiple rinsing devices 200 may correspond to one water supply device 210. In this embodiment, multiple rinsing devices 200 correspond to one water supply device 210. A three-way valve 211 is installed on the pipeline between the water supply device 210 and the rinsing device 200. The inlet of the water supply device 210 and the three-way valve 211 are connected via a first pipeline 212. One outlet of the three-way valve 211 is connected to the rinsing device 200 in the first dust removal chamber 111 via a second pipeline 213, and the other outlet of the three-way valve 211 is connected to the rinsing device 200 in the second dust removal chamber 112 via a third pipeline 214. The second pipeline 213 and the third pipeline 214 are respectively equipped with flow regulating valves 2131 to control the water flow. The water flow through the flow regulating valves 2131 can be adjusted by the air supply device 240 to regulate the water pressure of the spray device 230 and improve the cleaning effect. The principle of the air source regulating flow regulating valve 2131 can be referred to the existing technology, and will not be described in detail here.

[0034] Please see Figure 1In one embodiment, the wet electrostatic precipitator further includes a fan 600 and an electric heater 700. An air inlet 120 is provided on the dust collection chamber 110. The fan 600, electric heater 700, and air inlet 120 are sequentially connected, meaning the air outlet of the fan 600 is connected to the air inlet of the electric heater 700, and the air outlet of the electric heater 700 is connected to the air inlet 120. The air generated by the fan 600 is heated by the electric heater 700 and then blown into the dust collection chamber 110 through the air inlet 120. During normal operation of the wet electrostatic precipitator, blowing hot air into the cathode hanging area maintains a dry environment and prevents flue gas leakage and electric field short circuits.

[0035] Please see Figure 1 In some embodiments, the cathode hanger 400 is fixedly mounted inside the anode dust removal tube 300 by a fixing device 800. The fixing device 800 includes a crossbeam 810 and a fixing frame 820. The crossbeam 810 is fixedly mounted above the anode dust removal tube 300, and the fixing frame 820 is mounted below the anode dust removal tube 300. One end of the cathode hanger 400 is fixedly connected to the crossbeam 810, and the other end is fixedly connected to the fixing frame 820. This ensures the stability of the cathode hanger 400 within the anode dust removal tube 300, guarantees the uniformity of the electric field between the cathode and anode, and thus improves the efficiency of electrostatic dust removal. Simultaneously, the fixing device 800 has a simple structure, is easy to install and maintain, and can adapt to the usage requirements under different working conditions. In this embodiment, the crossbeam 810 is made of insulating material to prevent the cathode hanger 400 from forming a conductive path with the dust removal chamber 110, causing a short circuit in the electric field. To enhance the stability of the cathode hanger 400, the fixing frame 820 can also be fixedly connected to the dust removal chamber 110 through insulating components. In some embodiments, the fixed frame 820 further includes an elastic buffer assembly. Exemplarily, the elastic buffer assembly includes a spring and a damper. The spring is sleeved on the end of the cathode rod 400, one end of the damper is fixedly connected to the fixed frame 820, and the other end abuts against the cathode rod 400. During the operation of the wet electrostatic precipitator, the cathode rod 400 may vibrate due to factors such as airflow impact. The elastic buffer assembly can absorb the vibration of the cathode rod 400. The spring can buffer vibration energy through its own expansion and contraction, while the damper can dissipate vibration energy, preventing continuous transmission of vibration, thereby ensuring the stability of the cathode rod 400, extending its service life, and also helping to maintain the stability of the electric field and improve the dust removal effect.

[0036] The wet electrostatic precipitator proposed in this utility model includes multiple dust removal chambers connected from top to bottom. Each dust removal chamber is equipped with a cleaning device, an anode dust removal pipe, a cathode hanger, and a gas-liquid separation device. Compared with the top-to-bottom series flushing method, it can reduce the cleaning dead corners in the lower dust removal chamber, reduce the particle residue in the dust removal chamber, and help improve the dust removal efficiency. The gas-liquid separation device can prevent water from the upper dust removal chamber from flowing into the lower dust removal chamber during cleaning, ensuring the independent operation of each dust removal chamber.

[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A wet electrostatic precipitator characterized by comprising: include: The housing (100) includes a plurality of dust removal chambers (110) connected sequentially from top to bottom; A rinsing device (200) is installed inside the dust removal chamber (110) and is connected to a water supply device (210); An anode dust removal pipe (300) is fixedly installed vertically inside the dust removal chamber (110); The cathode hanger (400) corresponds to the anode dust removal tube (300) and is fixedly installed inside the anode dust removal tube (300); A gas-liquid separation device (500) is disposed at the bottom of each of the dust removal chambers (110) and located below the anode dust removal tube (300). The gas-liquid separation device (500) includes an exhaust port (513) and a drain port (514). The exhaust port (513) is connected to the lower gas path, and the drain port (514) is connected to the outside. The exhaust port (513) is higher than the drain port (514).

2. The wet electrostatic precipitator according to claim 1, characterized in that, The gas-liquid separation device (500) includes a plurality of vent caps (510), each vent cap (510) including an exhaust pipe (511) and a cover plate (512) fixedly disposed on the top of the exhaust pipe (511). The diameter of the cover plate (512) is larger than the diameter of the exhaust pipe (511). An exhaust port (513) for gas to pass through is provided between the exhaust pipe (511) and the cover plate (512). The height of the exhaust port (513) is higher than the height of the drain port (514).

3. The wet electrostatic precipitator according to claim 2, characterized in that, The gas-liquid separation device (500) is fixedly installed in the dust removal chamber (110) by means of an isolation plate (520). The isolation plate (520) is provided with an exhaust hole that is compatible with the exhaust pipe (511). The exhaust pipe (511) is circumferentially blocked along the outer edge of the exhaust hole.

4. The wet electrostatic precipitator according to claim 1, characterized in that, The wet electrostatic precipitator also includes a fan (600) and an electric heater (700). An air inlet (120) is provided on the dust removal chamber (110). The fan (600), the electric heater (700), and the air inlet (120) are connected in sequence.

5. The wet electrostatic precipitator according to claim 1, characterized in that, The flushing device (200) includes a flushing pipe (220) and a spray device (230) disposed on the flushing pipe (220), and the flushing pipe (220) is connected to the water supply device (210).

6. The wet electrostatic precipitator according to claim 5, characterized in that, The spray device (230) includes a rotating nozzle, which is rotatably connected to the flushing pipe (220) via a universal joint, and the spray angle of the rotating nozzle is adjustable.

7. The wet electrostatic precipitator according to claim 1, characterized in that, The cathode rod (400) is fixedly installed inside the anode dust removal tube (300) by a fixing device (800). The fixing device (800) includes a crossbeam (810) and a fixing frame (820). The crossbeam (810) is fixedly installed above the anode dust removal tube (300), and the fixing frame (820) is installed below the anode dust removal tube (300). One end of the cathode rod (400) is fixedly connected to the crossbeam (810), and the other end of the cathode rod (400) is fixedly connected to the fixing frame (820).

8. The wet electrostatic precipitator according to claim 7, characterized in that, The fixed frame (820) includes an elastic buffer assembly, which includes a spring and a damper. The spring is sleeved on the end of the cathode rod (400), and one end of the damper is fixedly connected to the fixed frame (820), while the other end abuts against the cathode rod (400).

9. The wet electrostatic precipitator according to claim 1, characterized in that, The cross-section of the anode dust removal tube (300) is a regular hexagon.

10. The wet electrostatic precipitator according to claim 1, characterized in that, Each of the dust removal chambers (110) is provided with a plurality of anode dust removal tubes (300), and the plurality of anode dust removal tubes (300) are combined to form a honeycomb structure.

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