Water curtain type modularized electric precipitation and demisting device

By setting up spoiler sections and water inlet components on the inner wall of the anode pipeline of the water curtain type electro-dust removal device, the tension of the water flow is destroyed and the water curtain is uniformly distributed, which solves the problem of uneven distribution of the water curtain in the traditional water curtain type electro-dust removal device, and improves the dust removal efficiency and normal operation of the equipment.

CN222943664UActive Publication Date: 2025-06-06HEBEI HEFENG TECH DEV CO LTD
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Patent Information

Application Number
CN202421750762.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-06-06
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

In traditional water curtain electro-dust removal devices, the water curtain is unevenly distributed due to the surface tension of the water curtain, and it is impossible to completely absorb dust and particles, which affects the normal operation and filtration effect of the equipment.

Method used

A modular electro-dust removal and mist removal device of water curtain type is designed. By setting multiple spoiler sections on the inner wall of the anode pipeline, the cooperation of the water inlet assembly and the spoiler section is used to destroy the tension of the water flow, so that the water curtain is evenly distributed, and by energizing and discharging the cathode, the water flow is controlled, and the uniformity and integrity of the water curtain are accelerated.

Benefits of technology

The uniform distribution of the water curtain is achieved, ensuring effective adsorption and cleaning of dust and particles in the air, improving dust removal efficiency, and avoiding the problem of arc burning, ensuring the normal operation of the equipment.

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Abstract

The utility model relates to the field of electric precipitation and demisting, and discloses a water curtain type modularized electric precipitation and demisting device which comprises a shell, heat preservation layers are fixedly connected to the positions, close to the four corners, of the outer portion of the shell, an insulation fixing rod is fixedly connected to the interior of the shell, and a high-voltage binding post is fixedly connected to the lower side of the insulation fixing rod. The bottom end of the insulation fixing rod is fixedly connected with a cathode hanging rod, the outer side of the heat preservation layer is fixedly connected with an air inlet, and a cathode beam is hung on the lower side of the cathode hanging rod. According to the utility model, water flow passes through the gap between the water inlet assembly and the anode pipeline, the tension of the water flow is continuously disturbed under the action of the turbulent flow section, then the water flow is distributed, and the cathode rod is electrified, so that the water flow cannot be gathered and can flow downwards along the inner wall of the anode pipeline in a film form all the time; and vaporific particles, dust and fine metal particles in the gas passing through the anode pipeline are adsorbed and washed away along with the flow.
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Description

Technical Field

[0001] The utility model relates to the field of electric dust removal and demisting, in particular to a water curtain type modular electric dust removal and demisting device. Background Art

[0002] Water curtain type electrostatic precipitator and mist removal technology is a highly efficient method for air and flue gas purification, mainly used in industry and environmental protection. It removes dust and particulate matter in the air by combining electric field and water curtain. The working principle of this equipment is to charge the dust and particles in the air or flue gas by applying electric field. The charged dust and particles are then quickly deposited on the anode surface under the action of the water curtain electric field, thereby filtering and cleaning the air or flue gas. The water curtain can effectively capture larger particles, and can also electrically adsorb and neutralize small particles, thereby improving the dust removal efficiency.

[0003] Water curtain electrostatic precipitator can not only purify the air, but also reduce the concentration of harmful gases in the air and improve the air quality of working environment and living space. Its advantages include low energy consumption, high efficiency, stable operation and strong adaptability. It is suitable for various industrial processes and pollution control scenarios.

[0004] When in use, water flows down along the inner wall of the pipe, and by energizing the electrodes, dust, mist particles, and fine particles are integrated into the water curtain. However, the inner wall of traditional water curtain pipes is smooth, and the water curtains will gather together due to tension. The closer to the bottom of the pipe, the more serious the water gathers, resulting in uneven distribution of the water curtain, which makes it impossible to completely adsorb dust and particles. Therefore, a water curtain type modular electrostatic precipitator and demisting device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a water curtain type modular electrostatic precipitator and demisting device, which aims to improve the problem that the inner wall of the traditional water curtain pipe is usually smooth, and the water curtain itself will gather together due to the effect of surface tension, especially near the bottom of the pipe, which leads to the problem of uneven distribution of the water curtain. Therefore, some dust or mist-like fine particles may not be completely adsorbed by the water curtain, especially in areas without water coverage, these particles are easily burned by the electric arc, which in turn affects the normal operation of the equipment and the filtering effect.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a water curtain type modular electrostatic precipitator and demisting device, comprising an outer shell, the four corners of the outer shell are fixedly connected to an insulation layer, the inner shell is fixedly connected to an insulating fixing rod, the lower side of the insulating fixing rod is fixedly connected to a high-voltage electric terminal, the bottom end of the insulating fixing rod is fixedly connected to a cathode hanger, the outer side of the insulation layer is fixedly connected to an air inlet, a cathode beam is hung on the lower side of the cathode hanger, a plurality of cathode rods are fixedly connected to the cathode beam, a plurality of anode pipes are fixedly connected to the inner part of the outer shell, a plurality of spoiler sections are arranged inside the anode pipe, a water inlet assembly is clamped on the top of the anode pipe, an air inlet bottom plate is fixedly connected to the bottom of the outer shell, a rotating flue gas assembly is installed inside the outer shell, and the rotating flue gas assembly is used to disrupt, evenly distribute and distribute the gas blown in.

[0007] As a further description of the above technical solution:

[0008] The rotating smoke assembly comprises a fixing plate, the outside of which is fixedly connected to the lower side of the inner part of the shell, a plurality of fixing rings 1 arranged at different heights are arranged inside the fixing plate, a connecting piece 1 is clamped inside the fixing ring 1, a plurality of fixing rings 2 arranged at different heights are arranged inside the fixing plate, a connecting piece 2 is clamped inside the fixing ring 2, a plurality of fixing bolts are arranged inside the fixing plate, and umbrella-shaped diverters are fixedly connected to the tops of the plurality of connecting pieces 1, the connecting pieces 2 and the plurality of fixing bolts

[0009] As a further description of the above technical solution:

[0010] The bottom end of the cathode suspension rod is hung and connected to the outside of the cathode beam, and the outside of the cathode suspension rod is sleeved inside the thermal insulation layer.

[0011] As a further description of the above technical solution:

[0012] The high-voltage electric terminal is externally sleeved inside the thermal insulation layer.

[0013] As a further description of the above technical solution:

[0014] The water inlet component is externally sleeved inside the shell.

[0015] As a further description of the above technical solution:

[0016] The outer part of the fixing ring is sleeved inside the outer shell, the outer part of the connecting piece is sleeved inside the outer shell, and a flow dividing guide device is installed inside the air intake bottom plate.

[0017] As a further description of the above technical solution:

[0018] The second connecting piece is externally sleeved inside the shell, and the second fixing ring is externally sleeved inside the shell.

[0019] As a further description of the above technical solution:

[0020] The exterior of the fixing bolt is sleeved inside the shell, the exterior of the umbrella-shaped diverter is sleeved inside the shell, and an adjusting ring and a clamp are arranged between the umbrella-shaped diverter and the second connecting piece.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, water flows through the gap between the water inlet assembly and the pipe. Under the action of the flow disturbance section, the tension of the water flow is disturbed, making it difficult to gather, but flowing along the inner wall of the anode pipe in the form of a film. At the same time, by electrifying and discharging the cathode, the water flow is further controlled and accelerated to ensure that the water curtain always remains uniform and complete. Such a design enables the water curtain to effectively absorb dust and particles in the air and flush them away, thereby achieving the purpose of filtering and cleaning the gas.

[0023] 2. In the utility model, the gas is blown in from the bottom plate, and the umbrella-shaped diverter works with the cooperation of the diversion guide device, the fixed plate connection and the fixed ring 1, the connecting piece 1, the fixed ring 2, the connecting piece 2 and the fixing bolt, so that the gas is disturbed and evenly dispersed to the surroundings, so that the gas passes through the pipeline more evenly, and the height of the water retaining ring is adjusted by the adjusting ring to control the air intake. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a fixing rod of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of a disturbance tank of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model;

[0027] Figure 4 This is a schematic structural diagram of an insulating pull rod of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of a fixed plate of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model;

[0029] Figure 6This is a schematic diagram of the structure of an umbrella-shaped diverter for a water curtain type modular electrostatic precipitator and demisting device proposed in the utility model. Figure 1 ;

[0030] Figure 7 This is a schematic diagram of the structure of an umbrella-shaped diverter for a water curtain type modular electrostatic precipitator and demisting device proposed in the utility model. Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the structure of an umbrella-shaped diverter for a water curtain type modular electrostatic precipitator and demisting device proposed in the utility model. Figure 3 ;

[0032] Fig. 9 This is a schematic diagram of the structure of the water inlet assembly of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model. Figure 1 ;

[0033] Fig.10 This is a schematic diagram of the structure of the water inlet assembly of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model. Figure 2 ;

[0034] Fig.11 This is a schematic diagram of the structure of the water inlet assembly of a water curtain type modular electrostatic precipitator and demisting device proposed in the utility model. Figure 3 ;

[0035] Fig.12 This is a schematic diagram of the structure of the water inlet assembly of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model. Figure 4 ;

[0036] Fig.13 This is a schematic diagram of the structure of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model. Figure 1 ;

[0037] Fig.14 This is a schematic diagram of the structure of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model. Figure 2 ;

[0038] Fig.15 This is a schematic diagram of the structure of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model. Figure 3 ;

[0039] Fig.16 This is a schematic diagram of the structure of a water curtain type modular electrostatic precipitator and demisting device proposed by the utility model. Figure 4 ;

[0040] Fig.17The utility model provides a schematic structural diagram of the spoiler section of a water curtain type modular electrostatic precipitator and demisting device.

[0041] Legend:

[0042] 1. Shell; 2. Insulation layer; 3. Insulation fixing rod; 4. High-voltage electrical terminal; 5. Cathode suspension rod; 6. Air inlet; 7. Cathode beam; 8. Cathode rod; 9. Anode pipe; 10. Spoiler section; 11. Water inlet assembly; 12. Air inlet bottom plate; 13. Fixing plate; 14. Umbrella-shaped diverter; 15. Fixing ring 1; 16. Connecting piece 1; 17. Fixing ring 2; 18. Connecting piece 2; 19. Fixing bolt. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0044] Reference Figure 1 - Fig.17 The utility model provides an embodiment: a water curtain type modular electric dust removal and demisting device, comprising a shell 1, the four corners of the outer shell 1 are fixedly connected to the insulation layer 2, the inner shell is fixedly connected to the insulation fixing rod 3, the lower side of the insulation fixing rod 3 is fixedly connected to the high-voltage electric terminal 4, the lower end of the insulation fixing rod 3 is fixedly connected to the cathode suspension rod 5, the outer side of the insulation layer 2 is fixedly connected to the air inlet 6, the lower side of the cathode suspension rod 5 is hung with a cathode beam 7, the cathode beam 7 is fixedly connected to a plurality of cathode rods 8, and the inner shell 1 is fixedly connected to the plurality of cathode rods 8. An anode pipe 9 is provided with a plurality of spoiler sections 10 inside the anode pipe 9, a water inlet assembly 11 is clamped on the top of the anode pipe 9, an air inlet bottom plate 12 is fixedly connected to the bottom of the outer shell 1, a rotating flue gas assembly is installed inside the outer shell 1, and the rotating flue gas assembly is used to disrupt the blown gas, even the wind and distribute the flow, the bottom end of the cathode hanger 5 is hung and connected to the outside of the cathode beam 7, the outside of the cathode hanger 5 is sheathed inside the insulation layer 2, the outside of the high-voltage electric terminal 4 is sheathed inside the insulation layer 2, and the outside of the water inlet assembly 11 is sheathed inside the outer shell 1.

[0045] Specifically, the shell 1 is used to connect and protect the internal parts, the insulation layer 2 is in the shape of an "I" or "L" shaped tube, the insulation method is high voltage resistant ceramics, quartz and other high voltage resistant materials plus heating accessories for baking to achieve the purpose of insulation, the insulation fixing rod 3 is fixed by bolts, pins or buckles, and external heating, internal heating, hot air heating, etc. are added to prevent water dripping and condensation. The lower end of the insulation fixing rod 3 is provided with an air inlet 6 to press down the moist and dirty smoke inside the insulation layer 2 to prevent the internal smoke from wetting or polluting the insulation components and causing creepage of the insulation components. The cathode suspension rod 5 is connected to the high voltage electric terminal 4 to energize and transmit it to the cathode beam 7. The cathode beam 7 is to support the cathode rod 8 and The electricity is transmitted to the cathode rod 8, and the cathode rod 8 is used for discharge. The shape of the anode pipe 9 can be divided into tubular, flat, square, polygonal, etc., which is regarded as the anode. The anode dust accumulation surface formation method can be divided into surface water film type and overall infiltration type, or water film and infiltration composite type. The anode pipe 9 uses a hydrophilic material or a hydrophilic structural surface to offset part of the surface tension in the process of liquid self-flow. The stepped variable diameter water-averaging step of the spoiler section 10 is presented in the form of a step and is arranged at intervals. The spoiler section 10 is a slightly convex step, which creates an obstacle when the water flows downward, destroys the tension of the water flow, and prevents aggregation. The water inlet component 11 adopts a pressure flow + siphon type, and the water level is flat on the top. The balance edge has a support inside, which is stuck on the upper surface of the tube to adjust the thickness of the water film. The inner wall interlayer of the tube bundle is equipped with spiral patterns to make the water film evenly distributed. The air intake bottom plate 12 adopts structures such as hole boxes, hole tubes, hole plates, elbows, and combined guide plates to divert and evenly distribute the flue gas. When multiple devices are connected in series, a water-proof umbrella and a water-retaining wall are set in the upper air intake bottom plate 12 to prevent the liquid in the upper device from flowing into the lower device and causing electric connection. At the same time, the water-proof umbrella can be divided into single-layer and multi-layer to adjust the direction and distribution of the flue gas. In the high-voltage ion field formed by the cathode and the cathode, since the anode pipe 9 belongs to the anode and is used to receive the charge released by the cathode, when the cathode line or the cathode rod 8 is offset or electrically charged Under abnormal circumstances where foreign matter appears in the field and the charge balance of the electric field is disrupted, it is very easy to cause the local electric charge in the electric field to gather wildly into a high-voltage arc, triggering arcing between the cathode and the anode, causing the anode end to break down or even catch fire due to local high temperature. The inner wall of the water curtain anode pipe 9 has multiple layers of spoiler sections 10, and is designed to be a hydrophilic surface made of hydrophilic material. Double control is used to offset the tension of the water film, so that the water film can be evenly distributed on the anode pipe 9 from top to bottom. While the water film naturally flows away dust particles, it can also protect the anode surface from direct electric shock and burning of the anode surface by the high-voltage arc, and can also take away the high temperature of the anode caused by the abnormal arc, thereby improving the fire safety of the equipment. Example

[0046] Reference Fig. 9 - Fig.12The utility model provides an embodiment: the water inlet component 11 can also be a overflow type, a siphon type, a overflow + siphon type, and a pressure flow type, wherein the inner wall of the siphon type and the pressure flow type is also provided with an annular water equalizing ring and a spiral water equalizing structure, and different water inlet methods are used according to different usage environments. Example

[0047] Reference Fig.17 The utility model provides an embodiment in which the flow-disturbing section 10 can also be spiral-shaped, and the equally spaced thread lines can create resistance for the water flow, causing the water flow to flow downward along the thread spiral, thereby avoiding water flow aggregation.

[0048] Reference Figure 1 - Fig.17 The rotating smoke assembly includes a fixing plate 13, the fixing plate 13 is fixedly connected to the lower side of the inner part of the housing 1, a plurality of fixing rings 15 with staggered heights and intervals are arranged inside the fixing plate 13, a connecting piece 16 is clamped inside the fixing ring 15, a plurality of fixing rings 2 17 with staggered heights and intervals are arranged inside the fixing plate 13, a connecting piece 2 18 is clamped inside the fixing ring 2 17, a plurality of fixing bolts 19 are arranged inside the fixing plate 13, a plurality of connecting pieces 16 and connecting pieces 2 18 and a plurality of fixing bolts 19 are arranged inside the fixing plate 13, The top of the bolt 19 is fixedly connected with an umbrella-shaped diverter 14, the fixing ring 15 is externally sleeved inside the outer shell 1, the connecting piece 16 is externally sleeved inside the outer shell 1, a diverter guide device is installed inside the air intake bottom plate 12, the connecting piece 2 18 is externally sleeved inside the outer shell 1, the fixing ring 2 17 is externally sleeved inside the outer shell 1, the fixing bolt 19 is externally sleeved inside the outer shell 1, the umbrella-shaped diverter 14 is externally sleeved inside the outer shell 1, and an adjusting ring and a card are arranged between the umbrella-shaped diverter 14 and the connecting piece 2 18.

[0049] Specifically, the fixing plate 13 is used to connect the umbrella-shaped diverter 14 in series, which is composed of an air balancing plate, an umbrella-shaped diverter 14, and a liquid guide groove. The air balancing plate is spliced ​​by a hole plate. A water retaining ring is arranged upward around the hole. The smoke is vented in the water retaining ring. The water retaining ring is designed to be arranged at intervals of different heights to prevent water from falling from the umbrella surface from splashing into adjacent holes and flowing to the lower end. The umbrella-shaped diverter 14 is inserted in the middle of the hole. The top of the diverter is umbrella-shaped, and the umbrella crown can block water and disperse air. The fixing ring 15 and the fixing ring 2 17 are the same part, and the connection method of the fixing ring 15 and the fixing ring 2 17 with the connecting piece 16 and the connecting piece 2 18 can also be a threaded connection. There is a connecting piece under the umbrella crown. Connecting piece 1 16, connecting piece 2 18, fixing bolt 19 and swirl blade device, wherein the connecting piece 1 16, connecting piece 2 18 and fixing bolt 19 under one umbrella-shaped diverter 14 can be two, three or four, depending on the specific site, the diverter is in a loose state, and can float up and down and rotate according to different air pressures, the connecting piece 1 16, connecting piece 2 18 and fixing bolt 19 have the functions of floating guidance and preventing falling off, and the height of the umbrella body can also be controlled by adding a counterweight to increase or decrease the air intake, the diversion guide device allows the gas to pass through the pipeline more evenly, and the height of the water retaining ring is adjusted by the adjusting ring to control the air intake.

[0050] Working principle: When using this device, by inserting the wire into the high-voltage electrical terminal 4, the electricity is transmitted to the cathode rod 8 through the cathode hanger 5 and the cathode beam 7, and then the liquid is added above the anode pipe 9 inside the shell 1, so that the water overflows the gap between the water inlet component 11 and the top of the anode pipe 9, and then flows down from the inner wall of the anode pipe 9, and then the anode pipe 9 is powered on and regarded as an anode. In the process of water flowing down from the inner wall of the anode pipe 9, the water will be hindered and dispersed under the action of the spoiler section 10, so that the water flows downward more evenly to prevent it from gathering due to tension. Then adjust the adjustment ring to adjust the height of the water retaining ring and adjust the verticality and offset of the cathode rod 8. At this time, the gas is blown into the shell 1 from the air intake bottom plate 12, and the gas is evenly dispersed through the diversion guide device and the umbrella-shaped diverter 14, and blown out from the bottom of the anode pipe 9 to achieve a uniform wind effect and prevent gas accumulation from causing insufficient treatment. At the same time, the umbrella-shaped diverter 14 effectively prevents water from falling from above from passing through the vent hole. It flows into the lower space. Due to the electric field formed on the top of the cathode rod 8, the dust in the gas passing through the anode pipe 9 at this time will move from the cathode to the anode, and adhere to the inner wall of the curtain-shaped liquid anode pipe 9, and flow downward with the liquid, and finally fall above the fixed plate 13, and then be discharged and merged into the water film liquid collecting tank designed with an inner water collecting ring and a wedge-shaped positioning groove, and then pass through the filtration system. After filtration, it is merged into the liquid storage tank, and then enters the outer shell 1 for recycling by means of pump pressure, etc., and the liquid flow water curtain is continuously formed in the circulating state. Multiple devices can be stacked and connected with each other in series, parallel, and series plus parallel. The assembly method of the equipment is simple and fast, which effectively shortens the on-site installation time. Due to the strong assembly flexibility of multiple devices, the equipment can be flexibly split, added or rearranged according to changes in working conditions. At the same time, the uniformity and standardization of the equipment can greatly enhance the speed of production, manufacturing, installation and other aspects of the equipment in use.

[0051] Finally, it should be noted that the above 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 aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water curtain type modular electrostatic precipitator and demisting device, comprising a housing (1), characterized in that: The outer four corners of the shell (1) are fixedly connected to an insulation layer (2), the inner part is fixedly connected to an insulation fixing rod (3), the lower side of the insulation fixing rod (3) is fixedly connected to a high-voltage electric terminal (4), the lower end of the insulation fixing rod (3) is fixedly connected to a cathode suspension rod (5), the outer side of the insulation layer (2) is fixedly connected to an air inlet (6), the lower side of the cathode suspension rod (5) is hung with a cathode beam (7), the cathode beam (7) is fixedly connected to a plurality of cathode rods (8), the inner part of the shell (1) is fixedly connected to a plurality of anode pipes (9), the inner part of the anode pipe (9) is provided with a plurality of spoiler sections (10), the top of the anode pipe (9) is clamped with a water inlet assembly (11), the bottom of the shell (1) is fixedly connected to an air inlet bottom plate (12), and the inner part of the shell (1) is provided with a rotating smoke assembly, the rotating smoke assembly is used to disrupt the gas blown in, to even out the wind and distribute the flow.

2. According to claim 1, a water curtain type modular electrostatic precipitator and demisting device is characterized in that: The rotating smoke assembly comprises a fixing plate (13), the fixing plate (13) being fixedly connected to the lower side of the inner part of the outer shell (1) on the outside, a plurality of fixing rings (15) arranged at different heights and intervals on the inside of the fixing plate (13), a connecting piece (16) being clamped inside the fixing ring (15), a plurality of fixing rings (17) arranged at different heights and intervals on the inside of the fixing plate (13), a connecting piece (18) being clamped inside the fixing ring (17), a plurality of fixing bolts (19) being arranged on the inside of the fixing plate (13), and an umbrella-shaped diverter (14) being fixedly connected to the tops of the plurality of connecting pieces (16), the connecting pieces (18) and the plurality of fixing bolts (19).

3. According to claim 1, a water curtain type modular electrostatic precipitator and demisting device is characterized in that: The bottom end of the cathode suspension rod (5) is hung and connected to the outside of the cathode beam (7), and the outside of the cathode suspension rod (5) is sleeved inside the thermal insulation layer (2).

4. A water curtain type modular electrostatic precipitator and demisting device according to claim 1, characterized in that: The high-voltage electric terminal (4) is externally sleeved inside the thermal insulation layer (2).

5. According to claim 1, a water curtain type modular electrostatic precipitator and demisting device is characterized in that: The water inlet assembly (11) is externally sleeved inside the outer shell (1).

6. A water curtain type modular electrostatic precipitator and demisting device according to claim 2, characterized in that: The fixing ring 1 (15) is externally sleeved inside the outer shell (1), the connecting piece 1 (16) is externally sleeved inside the outer shell (1), and a flow diversion guide device is installed inside the air intake bottom plate (12).

7. A water curtain type modular electrostatic precipitator and demisting device according to claim 2, characterized in that: The second connecting piece (18) is externally sleeved inside the outer shell (1), and the second fixing ring (17) is externally sleeved inside the outer shell (1).

8. The water curtain type modular electrostatic precipitator and demisting device according to claim 2 is characterized in that: The fixing bolt (19) is externally sleeved inside the housing (1), the umbrella-shaped diverter (14) is externally sleeved inside the housing (1), and an adjustment ring is provided between the umbrella-shaped diverter (14) and the second connecting piece (18).