Round octagonal water curtain wet-type electric dust collector

Abstract

The utility model relates to a kind of round octagonal water curtain wet-type electric dust collector, it includes shell, anode chamber is equipped in shell, frame is equipped in the shell above anode chamber, cathode wire is uniformly hung on the frame, the lower end of cathode wire is stretched out from the lower end of anode tube and its upper is all connected with weight, weight is connected by overhanging partition, grid is equipped in the shell below weight, a plurality of anode tubes are equipped in anode chamber, octagonal anode sleeve is equipped in the upper portion of anode tube, opening is equipped on octagonal anode sleeve below the upper end of anode tube, overflow channel is equipped in the top of anode chamber, through-hole is equipped on overflow channel, circulating water in overflow channel is overflowed into anode tube inner wall by the through-hole on overflow channel and the opening on octagonal anode sleeve and forms water curtain.The utility model appearance optimization design, all change into big circular arc angle by right angle, anode tube and anode sleeve are used in cooperation, dust removal effect is good, gas distribution plate is saved, cost is saved.

Description

Technical Field

[0001] This utility model relates to a wet electrostatic precipitator, specifically a water curtain wet electrostatic precipitator. Background Technology

[0002] Currently, wet electrostatic precipitators (ESPs) are widely used in industries such as electronics and metallurgy. An ESP is a high-voltage electrostatic precipitator used to treat humid gases, primarily removing PM2.5 fine particles, acid mist, water droplets, aerosols, and other harmful substances. A high-voltage DC current of tens of thousands of volts is applied between the collecting electrode (anode) and the discharging electrode (cathode) of the ESP. Under the influence of the strong electric field, the gas between the two electrodes is fully ionized, filling the electric field region of the ESP with positively and negatively charged ions. Dust particles entering the ESP with the desulfurized wet flue gas collide with these charged ions and become charged. These charged dust particles, due to the Coulomb force of the high-voltage electrostatic field, reach the collecting electrode and are captured. They are then washed away by sprayed water into a collection tank for removal.

[0003] Patent CN105478236B discloses a wet electrostatic precipitator that prevents scaling on the anode tubes. It includes a housing, within which, from bottom to top, are arranged an inlet chamber, a gas distribution chamber, an anode chamber, and an outlet chamber. The inlet chamber has an air inlet. The gas distribution chamber contains a gas distribution plate. The anode chamber contains evenly distributed anode tubes, each with a cathode wire suspended inside. The outlet chamber has an outlet at the top. The housing has an insulating box. A key feature is that the bottom of the inlet chamber has a liquid collection tank connected to a first circulation pump and a second circulation pump. The top of the inlet chamber has a second spray pipe connected to the first circulation pump. The anode chamber has an upper water-receiving plate and a lower water-receiving plate, with an overflow pipe on the upper water-receiving plate connected to the second circulation pump. The lower end of the anode tubes has a water collection trough, and the anode tube wall has a water outlet. The housing has a water outlet pipe, which is lower than the water outlet. In this application document, the shell has right angles on all four sides. Due to the use of fiberglass, stress exists at these right angles. A buffer trough is connected to the outlet of the overflow pipe. The buffer trough is located on the upper water-receiving plate. Buffer plates are staggered on both sides of the buffer trough along the extension direction of the overflow pipe outlet. There is an end plate at the end of the buffer trough away from the overflow pipe outlet. The height of the end plate is less than the height of the side plates and buffer plates. There is a diversion trough on the outside of the buffer trough. The liquid in the buffer trough can overflow from the end plate into the diversion trough. Diversion holes are evenly distributed at the bottom of the two side plates of the diversion trough, making the structure complex. The lower part of the anode chamber has a lower frame. There are counterweight holes evenly distributed on the lower frame. The counterweights correspond one-to-one with the counterweight holes, and the counterweights are all located in the corresponding counterweight holes. The lower frame is fixedly connected to the shell. The gas distribution plate is located at the upper end of the gas distribution chamber. There is a guide plate at the lower part of the gas distribution chamber. Utility Model Content

[0004] Purpose of the invention: The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an octagonal water curtain wet electrostatic precipitator with an optimized shape design, replacing all right angles with large rounded corners, using the anode tube and anode sleeve together, resulting in good dust removal effect, eliminating the need for a gas distribution plate, and saving costs.

[0005] Technical Solution: To solve the above-mentioned technical problems, the present invention provides an octagonal water curtain wet electrostatic precipitator, which includes a shell, an anode chamber inside the shell, a frame inside the shell above the anode chamber, cathode wires evenly suspended on the frame, the lower ends of the cathode wires extending from the lower ends of the anode tubes and each connected to a counterweight, the counterweights being connected by a suspended partition, a grid plate inside the shell below the counterweights, a plurality of anode tubes inside the anode chamber, an octagonal anode sleeve above the anode tubes, an opening on the octagonal anode sleeve below the upper end of the anode tubes, an overflow channel at the top of the anode chamber, a through hole in the overflow channel, and circulating water in the overflow channel overflowing through the through hole in the overflow channel and the opening in the octagonal anode sleeve into the inner wall of the anode tube to form a water curtain.

[0006] Furthermore, a modular anode tube unit is provided in the anode chamber.

[0007] Furthermore, the anode tube can be a circular anode tube or an octagonal anode tube.

[0008] Furthermore, the octagonal anode sleeve is larger than the anode tube, and the upper end of the octagonal anode sleeve is higher than the upper end of the anode tube.

[0009] Furthermore, the housing includes an upper housing, a middle housing, and a lower housing. An air outlet is provided in the middle of the upper housing. The connection between the upper end of the upper housing and the air outlet is an inclined surface. The lower end of the upper housing has a circular arc surface I around its perimeter. The middle housing has a circular arc surface II around its perimeter. The upper end of the lower housing has a circular arc surface III around its perimeter.

[0010] Furthermore, within the housing, from bottom to top, are arranged an air inlet chamber, a gas distribution chamber, an anode chamber, and an air outlet chamber. The air inlet chamber has an air inlet on its side wall, and the air outlet chamber has an air outlet at its top. A first spray pipe is located within the air outlet chamber, with nozzles evenly distributed along its lower side. An insulation box is located above the housing. A bottom flow channel is located at the bottom of the air inlet chamber, connected to a circulating pump. A second spray pipe is located at the top of the air inlet chamber, with nozzles evenly distributed along its lower side. The second spray pipe is connected to the circulating pump via a pipe. The anode chamber contains horizontally arranged upper and lower water-receiving plates, which are sealed to the inner wall of the anode chamber on all four sides. Both the upper and lower water-receiving plates have nozzles that connect to the anode pipe. The anode tube has corresponding through holes; the upper water-bearing plate is located below the upper end of the anode tube, and the through holes of the upper water-bearing plate are fixedly fitted with the outer wall of the anode tube; the lower water-bearing plate is located above the lower end of the anode tube, and the through holes of the lower water-bearing plate are sealed with the outer wall of the anode tube; the upper part of the upper water-bearing plate has an overflow channel, which is connected to the circulating pump through a pipe; the inner side of the lower end of the anode tube has an annular water collection trough, and the wall of the anode tube below the trough has a water outlet, which is located above the lower water-bearing plate; the anode chamber has a water outlet pipe, which is located above the lower water-bearing plate and below the water outlet of the anode tube, and the water outlet pipe is connected to the inner cavity of the underflow trough through a pipe.

[0011] Furthermore, each insulating box contains vertically arranged insulating columns made of ceramic material, with their lower ends extending through the bottom plate of the insulating box into the housing, and the insulating columns are fixedly connected to the bottom plate of the insulating box; the frame includes at least one cathode main beam, and the lower ends of each insulating column are connected to cathode hangers, and the insulating boxes are connected in pairs to a cathode main beam through cathode hangers, so that the cathode main beams are arranged horizontally and parallel; cathode secondary beams are evenly distributed longitudinally between the cathode main beams, and the cathode wires are suspended on the cathode secondary beams.

[0012] Furthermore, a plug-in air guide plate is provided at the bottom of the gas distribution chamber.

[0013] For some component names not specified in this utility model, please refer to the names in the patent with publication number CN105478236B, as the principles are the same.

[0014] Beneficial effects: Compared with the prior art, the significant advantages of this utility model are:

[0015] (1) The shell of this utility model includes an upper shell, a middle shell and a lower shell. The upper end of the upper shell is connected to the air outlet with a slope. The lower end of the upper shell is surrounded by a circular arc surface I. The middle shell is surrounded by a circular arc surface II. The upper end of the lower shell is surrounded by a circular arc surface III. The right angle of the previous shell is changed to a large circular arc angle, which greatly reduces the stress concentration around the shell and thus improves the service life of the product.

[0016] (2) In this utility model, the size of the octagonal anode sleeve is larger than that of the anode tube. The upper end of the octagonal anode sleeve is higher than that of the anode tube. An overflow channel is provided, and a through hole is provided on the overflow channel. The circulating water in the overflow channel overflows into the inner wall of the anode tube through the through hole on the overflow channel and the opening on the octagonal anode sleeve to form a water curtain. When combined with the anode tube and the octagonal anode sleeve, the dust removal effect is good.

[0017] (3) The anode chamber is equipped with modular anode tube units for easy expansion;

[0018] (4) The previous lower frame for placing the weight is changed into a suspended partition. The lifting lugs of the weight are placed in the slot of the suspended partition or the weight is placed below the suspended partition. There is a gap between the two ends of the suspended partition and the inside of the shell. The structure is simple and practical.

[0019] (5) The previous gas distribution plate is eliminated and the previous large-hole grid plate is replaced with a small-hole grid plate, so that the small-hole grid plate can serve as both the left and right sides of the split distribution plate, thus saving costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram of another aspect of the present invention;

[0022] Figure 3 This is a top view of the present invention;

[0023] Figure 4 This is a top view of the anode tube and anode sleeve structure form 1 and the overflow channel in this utility model;

[0024] Figure 5 This is a top view of the anode tube and anode sleeve structure form two and the overflow channel in this utility model;

[0025] Figure 6 This is a side view of the overflow channel in this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the anode tube and anode sleeve in this utility model;

[0027] Figure 8 This is a schematic diagram of the second structural form of the anode tube and anode sleeve in this utility model. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 As shown, the present invention discloses an octagonal water curtain wet electrostatic precipitator, comprising a housing 1, which includes an upper housing 1.1, a middle housing 1.2, and a lower housing 1.3. An air outlet is provided in the middle of the upper housing 1.1. The connection between the upper end of the upper housing 1.1 and the air outlet is a slope 1.4. The lower end of the upper housing 1.1 has four arc-shaped surfaces I 1.5. The middle housing 1.2 has four arc-shaped surfaces II 1.6. The upper end of the lower housing 1.3 has four arc-shaped surfaces III 1.7. An anode chamber 2 is provided inside the housing 1. A frame is provided inside the housing 1 above the anode chamber 2. Cathode wires 4 are evenly suspended on the frame. The lower ends of the cathode wires 4 extend from the lower end of the anode tube 5 and are connected to... A weight 6 is connected to the anode via a suspended partition 7. A grid plate 8 is provided inside the housing 1 below the weight 6. Several anode tubes 5 are provided inside the anode chamber 2. The anode tubes 5 are circular. An octagonal anode sleeve 9 is provided on the upper part of the anode tubes 5. The octagonal anode sleeve 9 is larger than the anode tube 5. The upper end of the octagonal anode sleeve 9 is higher than the upper end of the anode tube 5. An opening is provided on the octagonal anode sleeve 9 below the upper end of the anode tube 5. An overflow channel 10 is provided at the top of the anode chamber 2. The overflow channel 10 has a through hole. The circulating water in the overflow channel 10 overflows into the inner wall of the anode tube 5 through the through hole on the overflow channel 10 and the opening on the octagonal anode sleeve 9 to form a water curtain.

[0030] Within the housing 1, from bottom to top, are arranged an air inlet chamber 11, a gas distribution chamber 12, an anode chamber 2, and an air outlet chamber 13. The air inlet chamber 11 has an air inlet on its side wall. The gas distribution chamber 12 has a plug-in air guide plate at its lower part. The air outlet chamber 13 has an air outlet at its top and contains a first spray pipe with nozzles evenly distributed on its lower side. An insulation box 14 is located above the housing 1. The bottom of the air inlet chamber 11 has a bottom flow channel 15 connected to multiple circulating pumps 16. The top of the air inlet chamber 11 has a second spray pipe with nozzles evenly distributed on its lower side, and the second spray pipe is connected to the circulating pumps 16 via pipes. The anode chamber 2 contains horizontally arranged upper and lower water-receiving plates, which are sealed to the inner wall of the anode chamber 2 on all sides. Both the upper and lower water-receiving plates have through holes corresponding to the anode tube 5. The upper water-receiving plate is located below the upper end of the anode tube 5, and the through holes of the upper water-receiving plate are fixedly fitted with the outer wall of the anode tube 5. The lower water-receiving plate is located above the lower end of the anode tube 5, and the through holes of the lower water-receiving plate are sealed with the outer wall of the anode tube 5. The upper part of the upper water-receiving plate has an overflow channel 10, which is connected to the circulating pump 16 through a pipe. The inner side of the lower end of the anode tube 5 has an annular water collection trough, and the wall of the anode tube 5 below the trough edge of the water collection trough has a water outlet, which is located above the lower water-receiving plate. The anode chamber 2 has a water outlet pipe, which is located above the lower water-receiving plate and below the water outlet of the anode tube 5. The water outlet pipe is connected to the inner cavity of the bottom flow channel 15 through a pipe.

[0031] Each insulating box 14 contains vertically arranged insulating columns 17 made of ceramic material. The lower end of each column passes through the bottom plate of the insulating box 14 and extends into the housing 1, with the insulating column 17 and the bottom plate of the insulating box 14 being fixedly connected. The frame includes a cathode main beam 18, and the lower ends of each insulating column 17 are connected to cathode hangers 19. The insulating boxes 14 are connected in pairs to a cathode main beam 18 via cathode hangers 19, so that the cathode main beams 18 are arranged horizontally and parallel. Cathode secondary beams 20 are evenly distributed longitudinally between the cathode main beams 18, and the cathode wires 4 are suspended on the cathode secondary beams 20. A high-frequency power supply and an isolating switch are provided at the top of the housing 1. Example 2

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8As shown, the present invention discloses an octagonal water curtain wet electrostatic precipitator, comprising a housing 1, which includes an upper housing 1.1, a middle housing 1.2, and a lower housing 1.3. An air outlet is provided in the middle of the upper housing 1.1. The connection between the upper end of the upper housing 1.1 and the air outlet is a slope 1.4. The lower end of the upper housing 1.1 has four arc-shaped surfaces I 1.5. The middle housing 1.2 has four arc-shaped surfaces II 1.6. The upper end of the lower housing 1.3 has four arc-shaped surfaces III 1.7. An anode chamber 2 is provided inside the housing 1. A frame is provided inside the housing 1 above the anode chamber 2. Cathode wires 4 are evenly suspended on the frame. The lower ends of the cathode wires 4 extend from the lower ends of the anode tubes 5 and are connected to... There is a weight 6, which is connected by a suspended partition 7. A grid plate 8 is provided in the shell 1 below the weight 6. Several anode tubes 5 are provided in the anode chamber 2. The anode tubes 5 are octagonal anode tubes. An octagonal anode sleeve 9 is provided on the upper part of the anode tube 5. The size of the octagonal anode sleeve 9 is larger than that of the anode tube 5. The upper end of the octagonal anode sleeve 9 is higher than the upper end of the anode tube 5. An opening is provided on the octagonal anode sleeve 9 below the upper end of the anode tube 5. An overflow channel 10 is provided at the top of the anode chamber 2. The overflow channel 10 is provided with a through hole. The circulating water in the overflow channel 10 overflows into the inner wall of the anode tube 5 through the through hole on the overflow channel 10 and the opening on the octagonal anode sleeve 9 to form a water curtain.

[0033] Within the housing 1, from bottom to top, are arranged an air inlet chamber 11, a gas distribution chamber 12, an anode chamber 2, and an air outlet chamber 13. The air inlet chamber 11 has an air inlet on its side wall. The gas distribution chamber 12 has a plug-in air guide plate at its lower part. The air outlet chamber 13 has an air outlet at its top and contains a first spray pipe with nozzles evenly distributed on its lower side. An insulation box 14 is located above the housing 1. The bottom of the air inlet chamber 11 has a bottom flow channel 15 connected to multiple circulating pumps 16. The top of the air inlet chamber 11 has a second spray pipe with nozzles evenly distributed on its lower side, and the second spray pipe is connected to the circulating pumps 16 via pipes. The anode chamber 2 contains horizontally arranged upper and lower water-receiving plates, which are sealed to the inner wall of the anode chamber 2 on all sides. Both the upper and lower water-receiving plates have through holes corresponding to the anode tube 5. The upper water-receiving plate is located below the upper end of the anode tube 5, and the through holes of the upper water-receiving plate are fixedly fitted with the outer wall of the anode tube 5. The lower water-receiving plate is located above the lower end of the anode tube 5, and the through holes of the lower water-receiving plate are sealed with the outer wall of the anode tube 5. The upper part of the upper water-receiving plate has an overflow channel 10, which is connected to the circulating pump 16 through a pipe. The inner side of the lower end of the anode tube 5 has an annular water collection trough, and the wall of the anode tube 5 below the trough edge of the water collection trough has a water outlet, which is located above the lower water-receiving plate. The anode chamber 2 has a water outlet pipe, which is located above the lower water-receiving plate and below the water outlet of the anode tube 5. The water outlet pipe is connected to the inner cavity of the bottom flow channel 15 through a pipe.

[0034] Each insulating box 14 contains vertically arranged insulating columns 17 made of ceramic material. The lower end of each column passes through the bottom plate of the insulating box 14 and extends into the housing 1, with the insulating column 17 and the bottom plate of the insulating box 14 being fixedly connected. The frame includes at least two cathode main beams 18, and the lower end of each insulating column 17 is connected to a cathode hanger 19. The insulating boxes 14 are connected in pairs to a cathode main beam 18 through the cathode hanger 19, so that the cathode main beams 18 are arranged horizontally and parallel. Cathode secondary beams 20 are evenly distributed longitudinally between the cathode main beams 18, and the cathode wires 4 are suspended on the cathode secondary beams 20. A high-frequency power supply and an isolating switch are provided at the top of the housing 1.

[0035] This invention features a housing comprising an upper housing, a middle housing, and a lower housing. The upper end of the upper housing connects to the air outlet at an angled surface. The lower end of the upper housing has a circular arc surface (I) around its perimeter. The middle housing has a circular arc surface (II) around its perimeter, and the upper end of the lower housing has a circular arc surface (III) around its perimeter. The previous right angles of the outer shell are replaced with large circular arcs, significantly reducing stress concentration around the perimeter and thus improving product lifespan. In this invention, the octagonal anode sleeve is larger than the anode tube, and its upper end is higher than the upper end of the anode tube. An overflow channel is provided, with a through hole on the overflow channel. Circulating water in the overflow channel flows through the through hole... The water overflows from the openings on the octagonal anode sleeve into the inner wall of the anode tube, forming a water curtain. Combined with the anode tube and the octagonal anode sleeve, the dust removal effect is good. The anode chamber is equipped with modular anode tube units for easy expansion. The previous lower frame for placing the weight has been replaced with a suspended partition. The lifting lugs of the weight are located in the slots of the suspended partition or the weight is located below the suspended partition. There is a gap between the two ends of the suspended partition and the inside of the shell, making the structure simple and practical. The previous gas distribution plate has been eliminated, and the previous large-hole grid plate has been replaced with a small-hole grid plate, which combines the functions of the split distribution plate on the left and right sides, saving costs.

[0036] This utility model provides a concept and method. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model. These improvements and modifications should also be considered as the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A circular octagonal water curtain wet electrostatic precipitator, characterized in that: It includes a housing (1), an anode chamber (2) is provided inside the housing (1), a frame is provided inside the housing (1) above the anode chamber (2), cathode wires (4) are evenly suspended on the frame, the lower end of the cathode wires (4) extends from the lower end of the anode tubes (5) and each of them is connected to a weight (6), the weights (6) are connected by a suspended partition (7), a grid plate (8) is provided inside the housing (1) below the weights (6), a number of anode tubes (5) are provided inside the anode chamber (2), an octagonal anode sleeve (9) is provided on the upper part of the anode tubes (5), an opening is provided on the octagonal anode sleeve (9) below the upper end of the anode tubes (5), an overflow channel (10) is provided at the top of the anode chamber (2), a through hole is provided on the overflow channel (10), the circulating water in the overflow channel (10) overflows into the inner wall of the anode tube (5) through the through hole on the overflow channel (10) and the opening on the octagonal anode sleeve (9) to form a water curtain.

2. The octagonal water curtain wet electrostatic precipitator according to claim 1, characterized in that: A modular anode tube unit is provided inside the anode chamber (2).

3. The octagonal water curtain wet electrostatic precipitator according to claim 1, characterized in that: The anode tube (5) can be a circular anode tube or an octagonal anode tube.

4. The octagonal water curtain wet electrostatic precipitator according to claim 1, characterized in that: The octagonal anode sleeve (9) is larger than the anode tube (5), and the upper end of the octagonal anode sleeve (9) is higher than the upper end of the anode tube (5).

5. The octagonal water curtain wet electrostatic precipitator according to claim 1, characterized in that: The housing (1) includes an upper housing (1.1), a middle housing (1.2) and a lower housing (1.3). An air outlet is provided in the middle of the upper housing (1.1). The upper end of the upper housing (1.1) is connected to the air outlet by a slope (1.4). The lower end of the upper housing (1.1) is surrounded by an arc surface I (1.5). The middle housing (1.2) is surrounded by an arc surface II (1.6). The upper end of the lower housing (1.3) is surrounded by an arc surface III (1.7).

6. The octagonal water curtain wet electrostatic precipitator according to claim 1, characterized in that: Inside the housing (1), from bottom to top, are arranged an air inlet chamber (11), a gas distribution chamber (12), an anode chamber (2), and an air outlet chamber (13). The side wall of the air inlet chamber (11) has an air inlet, and the top of the air outlet chamber (13) has an air outlet. The air outlet chamber (13) contains a first spray pipe with nozzles evenly distributed on its lower side. An insulation box (14) is provided above the housing (1). The bottom of the air inlet chamber (11) has a bottom flow channel (15), which is connected to a circulation pump (16). The top of the air inlet chamber (11) has a second spray pipe with nozzles evenly distributed on its lower side. The second spray pipe is connected to the circulation pump (16) through a pipe. Inside the anode chamber (2), there are horizontally arranged upper and lower water-bearing plates, which are sealed to the inner wall of the anode chamber (2) on all sides. Each of the water-receiving plates has through holes corresponding to the anode tube (5); the upper water-receiving plate is located below the upper end of the anode tube (5), and the through holes of the upper water-receiving plate are fixedly fitted with the outer wall of the anode tube (5); the lower water-receiving plate is located above the lower end of the anode tube (5), and the through holes of the lower water-receiving plate are sealed with the outer wall of the anode tube (5); the upper part of the upper water-receiving plate has an overflow channel (10), and the overflow channel (10) is connected to the circulating pump (16) through a pipe; the inner side of the lower end of the anode tube (5) has an annular water collection trough, and the wall of the anode tube (5) corresponding to the groove edge of the water collection trough has a water outlet, which is located above the lower water-receiving plate; the anode chamber (2) has a water outlet pipe, which is located above the lower water-receiving plate and below the water outlet of the anode tube (5), and the water outlet pipe is connected to the inner cavity of the bottom flow channel (15) through a pipe.

7. The octagonal water curtain wet electrostatic precipitator according to claim 6, characterized in that: Each insulating box (14) contains vertically arranged insulating columns (17), which are made of ceramic material. Their lower ends pass through the bottom plate of the insulating box (14) and extend into the shell (1). The insulating columns (17) are fixedly connected to the bottom plate of the insulating box (14). The frame includes at least one cathode main beam (18). The lower ends of the insulating columns (17) are connected to cathode hangers (19). The insulating boxes (14) are connected in pairs to a cathode main beam (18) through cathode hangers (19), so that the cathode main beams (18) are arranged horizontally and parallel. Cathode secondary beams (20) are evenly distributed longitudinally between the cathode main beams (18). The cathode wires (4) are suspended on the cathode secondary beams (20).

8. The octagonal water curtain wet electrostatic precipitator according to claim 6, characterized in that: There is a plug-in air guide plate at the bottom of the gas distribution chamber (12).

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