Anode module and wet-process electric dust remover thereof

Abstract

The invention discloses an anode module and a wet-process electric dust remover thereof, relates to the technical field of electric dust removers, and solves the technical problems that in the prior art, the anode module is difficult to comprehensively and effectively clean in a water spraying mode, and the cleaning effect is influenced. Comprising a plurality of first anode tube groups and second anode tube groups which are alternately arranged, each first anode tube group is formed by sequentially welding a plurality of first anode tubes, each second anode tube group is formed by sequentially welding a plurality of second anode tubes, and each second anode tube is welded with the adjacent first anode tube; the first anode tubes and the second anode tubes are the same in structure, the sections of the first anode tubes and the second anode tubes are both of a honeycomb structure, and an upper stabilizing plate and a lower stabilizing plate are jointly welded to the outer tube walls, close to the two ends, of the first anode tubes and the second anode tubes. The surface area of the anode module is effectively increased, the dust removal efficiency of the anode module is improved, and the inner pipe wall of the anode module can be conveniently and comprehensively scraped and sprayed, so that the cleaning effect of the anode module is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrostatic precipitators, and in particular to an anode module and a wet electrostatic precipitator thereof. Background Art

[0002] Electrostatic precipitator is a widely used dust removal equipment, which is mainly divided into two types: wet type and dry type. Their basic principle is based on the principle of electrostatics. By charging dust particles, these charged particles are then adsorbed to the electrodes by electric field force to achieve the purpose of dust removal. There are significant differences in the subsequent cleaning treatment methods of the two types of electrostatic precipitators: wet electrostatic precipitators use cleaning fluid to flush the electrodes to remove the accumulated dust. This method can effectively avoid the secondary flying of dust, and the cleaning fluid can be recycled or properly treated before discharge, which has less pollution to the environment; while dry electrostatic precipitators use mechanical vibration methods, such as hammering, to make the dust fall off the electrodes and collect and process through the collection system. This method does not require the use of water resources, but may cause certain secondary dust flying problems. In wet electrostatic precipitators, the anode module plays a vital role. It is not only the main area for dust particle adsorption, but also guides the charged dust particles to move to the anode plate through electrostatic action and adhere closely to its surface to form a dust layer, thereby achieving effective separation of flue gas and dust, and ensuring dust removal efficiency and effect.

[0003] In the prior art, although the spray device is widely used for flushing and cleaning the anode module of the wet electrostatic precipitator, this traditional flushing method has limitations. Specifically, since the spray device is mostly arranged above the anode assembly and the cathode assembly, the water outlet of the spray layer is often partially blocked by the cathode frame when flowing through it, resulting in the spray liquid being unable to evenly cover all areas of the anode module, especially the top and edge parts of the anode module, which easily causes cleaning dead corners and cannot achieve comprehensive cleaning of the anode module, which not only affects the dust removal efficiency, but also may cause excessive accumulation of dust and dirt on the surface of the anode module, further affecting the overall performance and operation stability of the electrostatic precipitator. In addition, when the inner wall of the anode tube of the anode module is scaled after long-term operation, it is often difficult to effectively remove these hard scales by simply relying on water flushing, especially when the scale layer is thick or the scale is hard, the flushing effect is greatly reduced, which not only reduces the conductivity of the anode module, but also may increase the energy consumption and operating cost of the equipment, and even shorten the service life of the anode module. Summary of the invention

[0004] The object of the present invention is to provide an anode module and a wet electrostatic precipitator thereof, which solves the problem in the prior art that it is difficult to fully and effectively clean the anode module by water spraying, thus affecting the cleaning effect.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An anode module comprises a plurality of alternately arranged first anode tube groups and second anode tube groups, wherein the first anode tube groups are formed by sequentially welding a plurality of first anode tubes, and the second anode tube groups are formed by sequentially welding a plurality of second anode tubes, and the second anode tubes are welded to adjacent first anode tubes.

[0007] As a further solution of the present invention: the first anode tube and the second anode tube have the same structure, and their cross-sections are both honeycomb structures, and upper stabilizing plates and lower stabilizing plates are welded together at the outer tube walls of several first anode tubes and several second anode tubes near both ends.

[0008] A wet electrostatic precipitator comprises the anode module described above.

[0009] As a further solution of the present invention: it also includes a shell, a cathode wire, a cathode frame and a cleaning mechanism, the upper stabilizing plate, the lower stabilizing plate and the cathode frame are all installed in the shell, and the cathode frame is located above the anode module, a plurality of the cathode wires are vertically extended into a plurality of first anode tubes and a plurality of second anode tubes respectively, and the cathode wires are suspended and installed on the cathode frame, and the cleaning mechanism is arranged corresponding to the anode module;

[0010] The cleaning mechanism includes a U-shaped frame, a telescopic scraper, a water supply assembly and a water drive mechanism. Several of the telescopic scrapers are respectively inserted into several first anode tubes and several second anode tubes. Multiple U-shaped frames are equidistantly installed at the bottom of the lower stabilizing plate. The telescopic scraper is connected to the U-shaped frame through a water drive mechanism. The water drive mechanism is used to drive the telescopic scraper to rotate circumferentially. The water supply assembly is used to transport water to the water drive mechanism.

[0011] As a further solution of the present invention: the shell includes a shell cover and a collecting cover with an air inlet, the collecting cover is fixedly installed on the top of the shell cover, the air inlet is arranged on the top of the collecting cover, and the air inlet is connected to the collecting cover.

[0012] As a further solution of the present invention: the water drive mechanism includes a cylinder, an annular disk, a rotating member, blades, a rotating shaft and a water pipe, the cylinder is installed on the upper surface of the horizontal part of the U-shaped frame, the annular disk is coaxially connected to the top of the cylinder, the rotating member is rotatably connected to the annular disk, the cylinder and the annular disk are connected through the water pipe, the rotating shaft is rotatably installed at the center of the cylinder, and the top of the rotating shaft extends into the annular disk and is coaxially connected to the rotating member, and a plurality of the blades are arranged in the cylinder and distributed circumferentially along the rotating shaft.

[0013] As a further solution of the present invention: the telescopic scraper includes a scraper, a shell, a partition, a sliding tube and a spring. The bottom end of the shell is connected to the top of the rotating part. The partition is fixedly installed in the shell, and the partition divides the inner cavity of the shell into a sliding cavity and a water storage cavity in sequence. The interior of the scraper is a hollow structure, and the scraper is slidably connected to the sliding cavity. A plurality of sliding tubes are connected to the inner cavity of the scraper, and the sliding tube slides through the partition. The spring is sleeved on the sliding tube and installed in the sliding cavity.

[0014] As a further solution of the present invention: the water supply assembly includes a water supply pipe and a branch pipe, multiple water supply pipes are arranged under the anode module, and one end of the water supply pipe penetrates the shell and extends outward, several branch pipes are connected and arranged on the water supply pipe, and one end of the branch pipe away from the water supply pipe is connected to the corresponding cylinder.

[0015] As a further solution of the present invention: the telescopic scraper also includes a water spray hole and a nozzle, a plurality of the water spray holes are symmetrically arranged on both sides of the scraper and distributed along its length direction, a plurality of the nozzles are installed on the side of the shell away from the scraper, and the nozzles are connected to the water storage chamber.

[0016] As a further solution of the present invention: the rotating part includes an annular plate, a water outlet and a swivel with an annular water groove, the swivel is rotatably connected to the annular disk, the annular water groove is opened at the bottom of the swivel, and the annular water groove is communicated with the annular disk, the water outlet is arranged at the top of the swivel, the annular water groove is communicated with the water storage chamber through the water outlet, the annular plate is installed on the inner ring of the swivel, and the annular plate is coaxially connected to the rotating shaft.

[0017] Beneficial effects of the present invention:

[0018] 1. In the present invention, the anode module is formed by a plurality of groups of first anode tube groups and second anode tube groups arranged alternately, wherein the first anode tube and the second anode tube have the same structure and both have honeycomb cross-sections. Such a design not only increases the surface area of ​​the anode module, which is beneficial to improving the dust removal efficiency, but also the honeycomb structure enhances the mechanical strength and stability of the anode module. In addition, each anode tube is welded with an upper stabilizing plate and a lower stabilizing plate at the outer tube wall near both ends. Such a structure further enhances the stability of the entire anode module, making it less likely to deform or be damaged during use, which is beneficial to improving the service life of the anode module.

[0019] 2. In the present invention, clean water is conveniently introduced into each water driving mechanism through the water supply assembly, and the water driving mechanism is conveniently driven by the power of the water flow to drive the telescopic scraper to rotate circumferentially. The telescopic scraper is convenient to perform adaptive telescoping, so that it can scrape against the inner wall of the first anode tube and the second anode tube during circumferential rotation, so as to facilitate the cleaning of hard scale. In addition, the water driving mechanism can also introduce water into the telescopic scraper and spray it out, so that it can spray during the circumferential rotation, thereby facilitating comprehensive spray cleaning and effectively improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a three-dimensional diagram of an anode module of the present invention;

[0022] Figure 2 It is a first-view stereoscopic diagram of a wet electrostatic precipitator of the present invention;

[0023] Figure 3 It is a second perspective stereogram of a wet electrostatic precipitator of the present invention;

[0024] Figure 4 It is a first-perspective stereoscopic diagram of a wet electrostatic precipitator of the present invention after the shell is removed;

[0025] Figure 5 It is a second-angle stereoscopic view of a wet electrostatic precipitator of the present invention after the shell is removed;

[0026] Figure 6 It is a stereoscopic diagram of a wet electrostatic precipitator of the present invention after the shell and cathode frame are removed;

[0027] Figure 7 It is a partial stereoscopic diagram of a cleaning mechanism in a wet electrostatic precipitator of the present invention;

[0028] Figure 8 It is a three-dimensional diagram of a water driving mechanism in a wet electrostatic precipitator of the present invention;

[0029] Fig. 9 It is a cutaway perspective view of a water driving mechanism in a wet electrostatic precipitator of the present invention;

[0030] Fig.10 It is a stereoscopic diagram of a telescopic scraper in a wet electrostatic precipitator of the present invention;

[0031] Fig.11 The present invention is a three-dimensional diagram of a partially cut-away telescopic scraper in a wet electrostatic precipitator.

[0032] In the figure: 1, first anode tube group; 101, first anode tube; 2, second anode tube group; 201, second anode tube; 3, upper stabilizing plate; 4, lower stabilizing plate; 5, shell; 51, shell cover; 52, air inlet; 53, collector cover; 6, cathode line; 7, cathode frame; 8, cleaning mechanism; 81, U-shaped frame; 82, telescopic scraper; 821, scraper; 822, shell cover; 8221, sliding cavity; 8222, water storage cavity; 8 23. partition; 824. slide pipe; 825. spring; 826. water spray hole; 827. nozzle; 83. water supply assembly; 831. water supply pipe; 832. branch pipe; 84. water drive mechanism; 841. cylinder; 842. annular disk; 843. rotating part; 8431. annular plate; 8432. water outlet; 8433. annular water trough; 8434. swivel; 844. blade; 845. rotating shaft; 846. water guide pipe. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1 As shown, an anode module of the present invention comprises a plurality of groups of first anode tube groups 1 and second anode tube groups 2 which are alternately arranged, wherein the first anode tube group 1 is formed by sequentially welding a plurality of first anode tubes 101, and the second anode tube group 2 is formed by sequentially welding a plurality of second anode tubes 201, and the second anode tubes 201 are welded to adjacent first anode tubes 101.

[0035] It should be noted that the present application does not limit the number of the first anode tube group 1, the second anode tube group 2, the first anode tube 101 and the second anode tube 201. Only a specific number is provided below for reference. The first anode tube group 1 and the second anode tube group 2 are respectively set to 4 groups, each group of the first anode tube group 1 is composed of 8 first anode tubes 101 welded together, and each group of the second anode tube group 2 is composed of 7 second anode tubes 201 welded together.

[0036] like Figure 1 As shown, the first anode tube 101 and the second anode tube 201 have the same structure, and their cross-sections are both honeycomb structures. An upper stabilizing plate 3 and a lower stabilizing plate 4 are welded together at the outer tube walls of several first anode tubes 101 and several second anode tubes 201 near both ends.

[0037] It should be noted that the honeycomb structure can not only increase the surface area of ​​the first anode tube 101 and the second anode tube 201 and improve the dust removal efficiency, but also help to improve the mechanical strength and stability. The upper stabilizing plate 3 and the lower stabilizing plate 4 can further improve the overall structural stability of the anode module, making it less likely to deform or damage, which is beneficial to improving the service life of the anode module.

[0038] like Figure 2-Figure 6 As shown, a wet electrostatic precipitator of the present invention includes the anode module described above, and also includes a shell 5, a cathode line 6, a cathode frame 7 and a cleaning mechanism 8. The upper stabilizing plate 3, the lower stabilizing plate 4 and the cathode frame 7 are all installed in the shell 5, and the cathode frame 7 is located above the anode module. An atomizing flushing system (not shown in the figure) is also provided above the cathode frame 7. The atomizing flushing system is a mature technology of the wet electrostatic precipitator and will not be described in detail here. A plurality of cathode lines 6 are respectively vertically extended into a plurality of first anode tubes 101 and a plurality of second anode tubes 201, and the cathode lines 6 are suspended. Installed on the cathode frame 7, the cleaning mechanism 8 is arranged corresponding to the anode module; the cleaning mechanism 8 includes a U-shaped frame 81, a telescopic scraper 82, a water supply assembly 83 and a water drive mechanism 84, a plurality of telescopic scrapers 82 are respectively inserted into a plurality of first anode tubes 101 and a plurality of second anode tubes 201, a plurality of U-shaped frames 81 are equidistantly installed at the bottom of the lower stabilizing plate 4, the telescopic scraper 82 is connected to the U-shaped frame 81 through the water drive mechanism 84, the water drive mechanism 84 is used to drive the telescopic scraper 82 to rotate circumferentially, and the water supply assembly 83 is used to transport water to the water drive mechanism 84.

[0039] It should be noted that when it is necessary to clean the inner walls of the first anode tube 101 and the second anode tube 201, the water supply assembly 83 can be used to transport clean water to the water drive mechanism 84. The water drive mechanism 84 can use the power generated by the water flow to drive the telescopic scraper 82 to rotate circumferentially. The telescopic scraper 82 can adaptively shrink during the circumferential rotation, so that one side of it can always fit the inner wall of the first anode tube 101 and / or the second anode tube 201, thereby effectively scraping off the hard scale attached to the inner wall. At the same time, the water drive mechanism 84 can also introduce water into the telescopic scraper 82, so that the telescopic scraper 82 can be fully sprayed and rinsed during the process of scraping off the hard scale, which is conducive to further improving the cleaning effect.

[0040] like Figure 2-Figure 3 As shown, the shell 5 includes a shell cover 51 and a collecting cover 53 with an air inlet 52 . The collecting cover 53 is fixedly installed on the top of the shell cover 51 . The air inlet 52 is arranged on the top of the collecting cover 53 , and the air inlet 52 is communicated with the collecting cover 53 .

[0041] It should be noted that the dusty gas enters through the air inlet 52, and is made to enter the housing 51 by the collecting cover 53, and first contacts with the atomizing and flushing system (not shown in the figure), so that the dust particles in the gas are moistened and partially removed, and then the moistened dusty gas enters the anode module area in the housing 51, and the cathode line 6 (such as Figure 6 As shown in the figure, the charged particles are discharged under the action of a DC high voltage, and the surrounding gas is ionized to charge the surface of the dust or droplet particles. The charged particles are charged to the first anode tube 101 and the second anode tube 201 (as shown in the figure) under the action of the electric field force. Figure 4 The waste liquid generated by the flushing is discharged through the bottom opening of the shell cover 51 to the external desulfurization tower or wastewater treatment system for subsequent treatment.

[0042] like Figure 2 , Figure 5 and Figure 7 As shown, the water supply assembly 83 includes a water supply pipe 831 and a branch pipe 832. Multiple water supply pipes 831 are arranged below the anode module, and one end of the water supply pipe 831 passes through the shell 5 and extends outward. Several branch pipes 832 are connected and arranged on the water supply pipe 831, and one end of the branch pipe 832 away from the water supply pipe 831 is connected to the corresponding cylinder 841.

[0043] It should be noted that in this embodiment, there are four water supply pipes 831, which are used to transport clean water. One end of the water supply pipe 831 extending into the shell 5 is a closed structure, and the clean water entering the water supply pipe 831 is respectively introduced into the corresponding cylinder 841 (such as Figure 8 shown).

[0044] like Figure 7-Figure 9 As shown, the water drive mechanism 84 includes a cylinder 841, an annular disk 842, a rotating member 843, blades 844, a rotating shaft 845 and a water pipe 846. The cylinder 841 is installed on the upper surface of the horizontal part of the U-shaped frame 81, the annular disk 842 is coaxially connected to the top of the cylinder 841, the rotating member 843 is rotatably connected to the annular disk 842, the cylinder 841 and the annular disk 842 are connected through the water pipe 846, the rotating shaft 845 is rotatably installed at the center of the cylinder 841, and the top of the rotating shaft 845 extends into the annular disk 842 and is coaxially connected to the rotating member 843, and a plurality of blades 844 are arranged in the cylinder 841 and distributed circumferentially along the rotating shaft 845.

[0045] It should be noted that the rotating member 843 is rotatably connected to the annular disk 842 through a sealed bearing, and the clean water injected into the cylinder 841 impacts the blade 844, so that the rotating shaft 845 drives the rotating member 843 to rotate synchronously. When the rotating member 843 rotates, it drives the telescopic scraper 82 connected to it to rotate circumferentially. The water in the cylinder 841 can flow into the annular disk 842 through the water guide pipe 846. The annular disk 842 is used to guide the water into the rotating member 843, and finally injected into the telescopic scraper 82 for spraying, thereby improving the cleaning effect.

[0046] like Figure 7 and Fig.11 As shown, the telescopic scraper 82 includes a scraper 821, a shell 822, a partition 823, a sliding tube 824 and a spring 825. The bottom end of the shell 822 is connected to the top of the rotating member 843. The partition 823 is fixedly installed in the shell 822, and the partition 823 divides the inner cavity of the shell 822 into a sliding cavity 8221 and a water storage cavity 8222 in sequence. The interior of the scraper 821 is a hollow structure, and the scraper 821 is slidably plugged into the sliding cavity 8221. A plurality of sliding tubes 824 are connected to the inner cavity of the scraper 821, and the sliding tube 824 slides through the partition 823. The spring 825 is sleeved on the sliding tube 824 and installed in the sliding cavity 8221.

[0047] It should be noted that the end of the scraper 821 away from the shell 822 is a conical structure, and the scraper 821 is set to the initial state (such as Figure 6 As shown, during the subsequent rotation, the scraper 821 will first be pressed to slide along the shell 822 and compress the spring 825, and then the spring 825 will drive the scraper 821 to adaptively reset, and the cycle will continue. During the circumferential rotation of the telescopic scraper 82, the scraper 821 always fits the inner wall of the first anode tube 101 and / or the second anode tube 201, so as to facilitate the scraping of hard scale. A sealing ring is provided at the connection between the sliding pipe 824 and the partition 823 to prevent the water in the water storage chamber 8222 from entering the sliding chamber 8221. The water storage chamber 8222 is connected to the inner chamber of the rotating member 843, so that the water in the inner chamber of the rotating member 843 can be introduced into the water storage chamber 8222, and then enter the scraper 821 through the sliding pipe 824.

[0048] like Figure 7 and Figure 10-11 As shown, the telescopic scraper 82 also includes a water spray hole 826 and a nozzle 827. A plurality of water spray holes 826 are symmetrically arranged on both sides of the scraper 821 and distributed along its length direction. A plurality of nozzles 827 are installed on the side of the shell 822 away from the scraper 821, and the nozzles 827 are connected to the water storage chamber 8222.

[0049] It should be noted that, during the process of the scraper 821 adaptively extending and retracting along the shell 822, the water spray hole 826 will never enter the shell 822, and the water spray hole 826 is used to facilitate the comprehensive flushing of the inner wall of the first anode tube 101 and / or the second anode tube 201, further improving the cleaning effect, and part of the water in the water storage chamber 8222 enters the nozzle 827 and is sprayed out, thereby facilitating the cleaning of the cathode line 6 (such as Figure 6 Rinse thoroughly with water (as shown).

[0050] like Fig. 9 and Fig.11 As shown, the rotating member 843 includes an annular plate 8431, a water outlet 8432 and a swivel ring 8434 with an annular water groove 8433. The swivel ring 8434 is rotatably connected to the annular disk 842. The annular water groove 8433 is opened at the bottom of the swivel ring 8434, and the annular water groove 8433 is communicated with the annular disk 842. The water outlet 8432 is set at the top of the swivel ring 8434, and the annular water groove 8433 is communicated with the water storage chamber 8222 through the water outlet 8432. The annular plate 8431 is installed on the inner ring of the swivel ring 8434, and the annular plate 8431 is coaxially connected with the rotating shaft 845.

[0051] It should be noted that after the water in the cylinder 841 flows into the annular disk 842 through the water conduit 846, when the water in the annular disk 842 is filled, as the subsequent water is continuously replenished, the water in the annular disk 842 will enter the annular water groove 8433, and then be introduced into the water storage chamber 8222 through the water outlet 8432. When the rotating shaft 845 rotates, it drives the annular plate 8431 to rotate synchronously. When the annular plate 8431 rotates, it drives the rotating ring 8434 to rotate, thereby not only allowing the rotating ring 8434 to rotate normally along the annular disk 842, but also ensuring that the water in the annular disk 842 can enter the water storage chamber 8222 through the rotating member 843.

[0052] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An anode module, characterized in that: The invention comprises a plurality of groups of first anode tube groups (1) and second anode tube groups (2) which are alternately arranged, wherein the first anode tube group (1) is formed by sequentially welding a plurality of first anode tubes (101), and the second anode tube group (2) is formed by sequentially welding a plurality of second anode tubes (201), and the second anode tubes (201) are welded to adjacent first anode tubes (101).

2. An anode module according to claim 1, characterized in that: The first anode tube (101) and the second anode tube (201) have the same structure, and their cross-sections are both honeycomb structures. An upper stabilizing plate (3) and a lower stabilizing plate (4) are welded together at the outer tube walls of a plurality of the first anode tubes (101) and a plurality of the second anode tubes (201) near both ends.

3. A wet electrostatic precipitator, characterized in that: The anode module comprises the anode module according to any one of claims 1 to 2.

4. A wet electrostatic precipitator according to claim 3, characterized in that: It also comprises a shell (5), cathode wires (6), a cathode frame (7) and a cleaning mechanism (8), wherein the upper stabilizing plate (3), the lower stabilizing plate (4) and the cathode frame (7) are all installed in the shell (5), and the cathode frame (7) is located above the anode module, a plurality of cathode wires (6) respectively extend vertically into a plurality of first anode tubes (101) and a plurality of second anode tubes (201), and the cathode wires (6) are suspended and installed on the cathode frame (7), and the cleaning mechanism (8) is arranged corresponding to the anode module; The cleaning mechanism (8) comprises a U-shaped frame (81), a telescopic scraper (82), a water supply assembly (83) and a water drive mechanism (84); a plurality of the telescopic scrapers (82) are respectively inserted into a plurality of first anode tubes (101) and a plurality of second anode tubes (201); a plurality of the U-shaped frames (81) are equidistantly installed at the bottom of the lower stabilizing plate (4); the telescopic scraper (82) is connected to the U-shaped frame (81) via the water drive mechanism (84); the water drive mechanism (84) is used to drive the telescopic scraper (82) to rotate circumferentially; and the water supply assembly (83) is used to transport water to the water drive mechanism (84).

5. A wet electrostatic precipitator according to claim 3, characterized in that: The shell (5) comprises a shell cover (51) and a collecting cover (53) with an air inlet (52); the collecting cover (53) is fixedly mounted on the top of the shell cover (51); the air inlet (52) is arranged on the top of the collecting cover (53); and the air inlet (52) is communicated with the collecting cover (53).

6. A wet electrostatic precipitator according to claim 4, characterized in that: The water driving mechanism (84) comprises a cylinder (841), an annular disk (842), a rotating member (843), blades (844), a rotating shaft (845) and a water guide pipe (846); the cylinder (841) is mounted on the upper surface of the horizontal portion of the U-shaped frame (81); the annular disk (842) is coaxially connected to the top end of the cylinder (841); the rotating member (843) is rotatably connected to the annular disk (842); the cylinder (841) and the annular disk (842) are connected via the water guide pipe (846); the rotating shaft (845) is rotatably mounted at the center of the cylinder (841); the top end of the rotating shaft (845) extends into the annular disk (842) and is coaxially connected to the rotating member (843); a plurality of blades (844) are arranged in the cylinder (841) and are distributed circumferentially along the rotating shaft (845).

7. A wet electrostatic precipitator according to claim 6, characterized in that: The telescopic scraper (82) comprises a scraper (821), a shell (822), a partition (823), a sliding tube (824) and a spring (825). The bottom end of the shell (822) is connected to the top end of the rotating member (843). The partition (823) is fixedly installed in the shell (822), and the partition (823) divides the inner cavity of the shell (822) into a sliding cavity (8221) and a water storage cavity (8222) in sequence. The interior of the scraper (821) is a hollow structure, and the scraper (821) is slidably plugged into the sliding cavity (8221). A plurality of sliding tubes (824) are connected to the inner cavity of the scraper (821), and the sliding tube (824) slides through the partition (823). The spring (825) is sleeved on the sliding tube (824) and installed in the sliding cavity (8221).

8. A wet electrostatic precipitator according to claim 6, characterized in that: The water supply assembly (83) comprises a water supply pipe (831) and a branch pipe (832); a plurality of the water supply pipes (831) are arranged below the anode module, and one end of the water supply pipe (831) passes through the shell (5) and extends outward; a plurality of the branch pipes (832) are connected and arranged on the water supply pipe (831), and one end of the branch pipe (832) away from the water supply pipe (831) is connected to the corresponding cylinder (841).

9. A wet electrostatic precipitator according to claim 7, characterized in that: The telescopic scraper (82) further comprises a water spray hole (826) and a spray head (827); a plurality of the water spray holes (826) are symmetrically arranged on both sides of the scraper (821) and distributed along its length direction; a plurality of the spray heads (827) are installed on a side of the shell (822) away from the scraper (821), and the spray heads (827) are connected to the water storage chamber (8222).

10. A wet electrostatic precipitator according to claim 7, characterized in that: The rotating member (843) comprises an annular plate (8431), a water outlet (8432) and a rotating ring (8434) with an annular water groove (8433); the rotating ring (8434) is rotatably connected to the annular disk (842); the annular water groove (8433) is provided at the bottom of the rotating ring (8434), and the annular water groove (8433) is communicated with the annular disk (842); the water outlet (8432) is provided at the top of the rotating ring (8434), and the annular water groove (8433) is communicated with the water storage chamber (8222) through the water outlet (8432); the annular plate (8431) is installed on the inner ring of the rotating ring (8434), and the annular plate (8431) is coaxially connected with the rotating shaft (845).

Images