Secondary voltage limiting device of wet-type electric dust remover

Abstract

The utility model belongs to the technical field of electrostatic dust removers, and particularly relates to a secondary voltage limiting device of a wet-type electric dust remover, which comprises a dust removal box body, a fixing plate is fixedly connected to the dust removal box body, five clamping grooves are formed in the fixing plate, dust collection plates are arranged in the clamping grooves, a connecting pipe is fixedly connected to the fixing plate, a plurality of drainage pipes are arranged on the connecting pipe, and a water inlet pipe is fixedly connected to the connecting pipe; an external water pipe is connected to the water inlet pipe, spraying liquid flows into the connecting pipe through the water inlet pipe, then flows into the drainage pipe through the connecting pipe and then is sprayed to the dust collection plate through the spraying head, the electrified dust collection plate generates an electric field to adsorb dust to achieve the dust removal function, and then the spraying head sprays the spraying liquid into the electric field cavity in all directions. And the humidity of the upper part and the lower part in the electric field cavity between the dust collecting plates can be ensured to be consistent, so that the dust removal effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic precipitators, in particular to a secondary voltage limiting device for a wet electrostatic precipitator. Background Art

[0002] The working principle of the electrostatic precipitator is to use a high-voltage electric field to ionize the flue gas, and the dust in the airflow is charged and separated from the airflow under the action of the electric field. The negative electrode is made of metal wires of different cross-sectional shapes, called the discharge electrode. The secondary current in the electrostatic precipitator refers to the current formed when the tiny particles such as dust and smoke that are not captured after passing through the high-voltage electric field return to the power supply equipment, and then form a secondary voltage.

[0003] The built-in spray mechanism of the existing wet electrostatic precipitator adopts a top-down spraying method, which makes the humidity in the lower layer of the electric field cavity relatively high. It is impossible to spray in the electric field cavity from multiple directions. The humidity difference between the upper and lower parts of the electric field cavity is relatively large. There is insufficient water mist between the two dust collecting plates, which will reduce the dust removal efficiency and cannot meet the use requirements.

[0004] Therefore, in order to solve the above problems, a secondary voltage limiting device for a wet electrostatic precipitator is proposed. When the precipitator is in use, the spraying method can perform spraying treatment in the electric field chamber in multiple directions to avoid a large difference in humidity between the upper and lower parts of the electric field chamber, thereby causing insufficient water mist between the two dust collecting plates and reducing the dust removal efficiency. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a secondary voltage limiting device for a wet electrostatic precipitator.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the secondary voltage limiting device of a wet electrostatic precipitator described in the utility model comprises a dust removal box; a fixed plate is fixedly connected to the dust removal box, five slots are provided on the fixed plate, a dust collecting plate is arranged in the slot, a connecting pipe is fixedly connected to the fixed plate, a plurality of drainage pipes are arranged on the connecting pipe, a water inlet pipe is fixedly connected to the connecting pipe, the water inlet pipe passes through the dust removal box, a plurality of spray heads are arranged on the drainage pipe, a mounting bracket is fixedly connected to the dust collecting plate, four bolts are arranged on the mounting bracket, a connecting point is fixedly connected to the mounting bracket, four bolts are detachably connected to the same fixed plate, and the spray head is arranged on the side of the dust collecting plate.

[0007] Preferably, four connection points 2 are provided on the fixed plate, a cathode plate is fixedly connected to the connection points 2, a return pipe is connected to the drain pipe, the bottoms of several drain pipes are connected to the same return pipe, and a sealing ring is provided on the water inlet pipe.

[0008] Preferably, the dust removal box is connected with a separation plate, the dust removal box is fixedly connected with a sewage discharge port, two vibration motors are arranged on the sewage discharge port, a diversion cylinder is connected with the sewage discharge port, a protective shell is fixedly connected with the diversion cylinder, two fixed columns are arranged on the protective shell, and the other ends of the two fixed columns are fixed on the diversion cylinder.

[0009] Preferably, a driving assembly is arranged in the protective shell, and the driving assembly includes a motor 1, a transmission shaft is fixedly connected to the motor 1, a bevel gear 1 is arranged on the transmission shaft, a bevel gear 1 is connected to a bevel gear 2, a bevel gear 2 is connected to a connecting shaft, and a cleaning device is connected to the connecting shaft.

[0010] Preferably, the cleaning device includes a fixed ring, six connecting rods are arranged on the fixed ring, cleaning plate 1 is fixedly connected to the other end of the connecting rod, cleaning plate 2 is arranged at the bottom of the connecting rod, a fixed rod is fixedly connected to the bottom of the fixed ring, and spiral blades are arranged on the fixed rod.

[0011] Preferably, a sewage pipe is fixedly connected to the bottom of the diverter cylinder, a valve is provided on the sewage pipe, and the spiral blade is arranged in the sewage pipe.

[0012] Preferably, a fixed bracket is fixedly connected to the dust removal box, two anti-slip plates are arranged on the fixed bracket, and an air inlet and an exhaust port are arranged on the dust removal box.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model discloses a secondary voltage limiting device for a wet electrostatic precipitator. By setting a connecting pipe, a water inlet pipe, a drain pipe and a spray head, when working, an external water pipe is connected to the water inlet pipe, and the spray liquid flows into the connecting pipe through the water inlet pipe, and then flows into the drain pipe from the connecting pipe, and then is sprayed onto the dust collecting plate through the spray head. The energized dust collecting plate generates an electric field to adsorb the dust to achieve the dust removal function. The spray head then sprays the spray liquid into the electric field cavity in all directions, so that the spray liquid fully contacts the smoke and dust in the electric field cavity, and ensures that the humidity in the upper and lower parts of the electric field cavity between the dust collecting plates is consistent, thereby improving the dust removal effect and avoiding a large difference in humidity between the upper and lower parts of the electric field cavity, thereby causing insufficient water mist between the two dust collecting plates and reducing the dust removal efficiency.

[0015] 2. The utility model describes a secondary voltage limiting device for a wet electrostatic precipitator. By setting a driving component and a cleaning device, when working, sewage flows into the diversion tube through the sewage discharge port, and the motor drives the bevel gear 1 on the transmission shaft to rotate, and the bevel gear 1 drives the bevel gear 2 to rotate, thereby driving the fixed ring on the connecting shaft to rotate, and the fixed ring drives the six connecting rods to rotate, so that the cleaning plates 1 and 2 on the connecting rods clean the inner surface of the diversion tube, preventing the impurities in the sewage from remaining in the diversion tube after long-term use, corroding the diversion tube and causing damage to the diversion tube, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the dust removal box structure in the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the dust removal box in the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the dust removal box and the diversion cylinder in the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the diverter tube in the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the cleaning device and the driving assembly in the utility model.

[0023] In the figure: 1. dust removal box; 2. fixing plate; 3. connecting pipe; 4. water inlet pipe; 5. sealing ring; 6. drain pipe; 7. sprinkler head; 8. dust collecting plate; 9. mounting bracket; 10. connection point 1; 11. bolt 1; 12. slot; 13. cathode plate; 14. connection point 2; 15. return pipe; 16. air inlet; 17. exhaust port; 18. sewage outlet; 19. separation plate; 20. vibration motor; 21. diverter tube; 22. Protective shell; 23. Fixed column; 24. Drive assembly; 241. Motor 1; 242. Transmission shaft; 243. Bevel gear 1; 244. Bevel gear 2; 245. Connecting shaft; 25. Cleaning device; 251. Fixed ring; 252. Connecting rod; 253. Cleaning plate 1; 254. Cleaning plate 2; 255. Fixed rod; 256. Spiral blade; 26. Drain pipe; 27. Valve; 28. Fixed bracket; 29. ​​Anti-skid plate. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figure 1-5As shown, a secondary voltage limiting device for a wet electrostatic precipitator comprises a dust collecting box 1; a fixing plate 2 is fixedly connected to the dust collecting box 1, five slots 12 are provided on the fixing plate 2, a dust collecting plate 8 is arranged in the slot 12, a connecting pipe 3 is fixedly connected to the fixing plate 2, a plurality of drain pipes 6 are arranged on the connecting pipe 3, a water inlet pipe 4 is fixedly connected to the connecting pipe 3, the water inlet pipe 4 passes through the dust collecting box 1, a plurality of spray heads 7 are arranged on the drain pipe 6, a mounting bracket 9 is fixedly connected to the dust collecting plate 8, four bolts 11 are arranged on the mounting bracket 9, a connection point 10 is fixedly connected to the mounting bracket 9, and the four bolts 11 are detachably connected to the same fixing plate 2, the spray head 7 is arranged on the side of the dust collecting plate 8, and by arranging the connecting pipe 3, the water inlet pipe 4, the drain pipe 6 and the spray head 7, when working, by connecting the external water pipe to the water inlet pipe 4, The spraying liquid flows into the connecting pipe 3 through the water inlet pipe 4, and then flows into the drain pipe 6 through the connecting pipe 3, and then is sprayed onto the dust collecting plate 8 through the spray head 7. The energized dust collecting plate 8 generates an electric field to adsorb the dust to achieve the dust removal function. The spraying liquid is then sprayed into the electric field cavity in all directions by the spray head 7, so that the spraying liquid is fully in contact with the smoke and dust in the electric field cavity, and it can also ensure that the humidity in the upper and lower parts of the electric field cavity between the dust collecting plates 8 is consistent, thereby improving the dust removal effect and avoiding a large difference in humidity between the upper and lower parts of the electric field cavity, thereby causing insufficient water mist between the two dust collecting plates 8 and reducing the dust removal efficiency. By setting an installation bracket 9, a slot 12 and a bolt 11, when replacing the dust collecting plate 8, the old dust collecting plate 8 is removed, and the new dust collecting plate 8 is inserted into the slot 12 on the fixed plate 2. After the installation bracket 9 is placed on the fixed plate 2, the dust collecting plate 8 is replaced by tightening four bolts 11, thereby improving the practicality of the device.

[0026] Further, such as Figure 3 and Figure 4 As shown, four connection points 14 are provided on the fixed plate 2, and the cathode plate 13 is fixedly connected to the connection point 14. The drain pipe 6 is connected with a return pipe 15, and the bottoms of several drain pipes 6 are connected to the same return pipe 15. The water inlet pipe 4 is provided with a sealing ring 5. By setting the return pipe 15 and the sealing ring 5, the spraying liquid flows into the connecting pipe 3 through the water inlet pipe 4, and then flows into the drain pipe 6 from the connecting pipe 3. The excess spraying liquid flows into the drain pipe 6 through the return pipe 15, and continues to be sprayed between the dust collecting plates 8 through the spray head 7 to avoid wasting excess spraying liquid. The sealing ring 5 can prevent the spraying liquid from leaking at the interface when connecting the external water pipe, thereby improving its sealing performance.

[0027] Further, such as Figure 4As shown, the dust removal box 1 is connected with a separation plate 19, the dust removal box 1 is fixedly connected with a sewage discharge port 18, the sewage discharge port 18 is provided with two vibration motors 20, the sewage discharge port 18 is connected with a diversion tube 21, the diversion tube 21 is fixedly connected with a protective shell 22, the protective shell 22 is provided with two fixed columns 23, and the other ends of the two fixed columns 23 are fixed on the diversion tube 21. By arranging the vibration motor 20, the sewage discharge port 18 is driven by the vibration motor 20 and then driven to shake. With the shaking of the sewage discharge port 18, the materials accumulated on the inner wall of the sewage discharge port 18 can be shaken off, thereby indirectly improving the dust removal effect and preventing material residues from remaining on the inner wall of the sewage discharge port 18.

[0028] Further, such as Figure 5 and Figure 6 As shown, a driving assembly 24 is arranged in the protective shell 22, and the driving assembly 24 includes a motor 241, and a transmission shaft 242 is fixedly connected to the motor 241, and a bevel gear 243 is arranged on the transmission shaft 242, and a bevel gear 244 is connected to the bevel gear 1 243, and a connecting shaft 245 is connected to the bevel gear 244. The connecting shaft 245 is connected to a cleaning device 25. By setting the driving assembly 24, the bevel gear 1 243 on the transmission shaft 242 is driven to rotate by the motor 1 241, and the bevel gear 1 243 drives the bevel gear 244 to rotate, thereby driving the fixed ring 251 on the connecting shaft 245 to rotate, and then the fixed ring 251 drives the six connecting rods 252 to clean the diverter tube 21, so that the diverter tube 21 can be cleaned faster.

[0029] Further, such as Figure 6 As shown, the cleaning device 25 includes a fixing ring 251, six connecting rods 252 are arranged on the fixing ring 251, a cleaning plate 1 253 is fixedly connected to the other end of the connecting rod 252, a cleaning plate 254 is arranged at the bottom of the connecting rod 252, a fixing rod 255 is fixedly connected to the bottom of the fixing ring 251, and a spiral blade 256 is arranged on the fixing rod 255. By setting the cleaning device 25, the six connecting rods 252 are driven to rotate through the fixing ring 251, so that the cleaning plate 1 253 and the cleaning plate 2 254 on the connecting rod 252 clean the inner surface of the diverter tube 21, so as to prevent the impurities in the sewage from remaining in the diverter tube 21 after long-term use, and corrode the diverter tube 21 to cause damage to the diverter tube 21, thereby improving the practicality of the device.

[0030] Further, such as Figure 1 and Figure 6As shown, a sewage pipe 26 is fixedly connected to the bottom of the diverter cylinder 21, a valve 27 is arranged on the sewage pipe 26, the spiral blade 256 is arranged in the sewage pipe 26, a fixed bracket 28 is fixedly connected to the dust removal box 1, two anti-skid plates 29 are arranged on the fixed bracket 28, and an air inlet 16 and an exhaust port 17 are arranged on the dust removal box 1. By arranging the fixed bracket 28 and the anti-skid plate 29, when the device is used, the fixed bracket 28 is used to make the device more stable, and the anti-skid plate 29 prevents the device from moving when in use, thereby affecting the operation of the internal equipment.

[0031] Working principle: when working, by connecting the external water pipe to the water inlet pipe 4, the spray liquid flows into the connecting pipe 3 through the water inlet pipe 4, and then flows into the drain pipe 6 from the connecting pipe 3, and then is sprayed onto the dust collecting plate 8 through the spray head 7. The energized dust collecting plate 8 generates an electric field to adsorb the dust to achieve the dust removal function, and then the spray head 7 sprays the spray liquid into the electric field cavity in all directions, so that the spray liquid fully contacts the smoke and dust in the electric field cavity, and can also ensure that the humidity in the upper and lower parts of the electric field cavity between the dust collecting plates 8 is consistent, thereby improving the dust removal effect and avoiding a large difference in humidity between the upper and lower parts of the electric field cavity, thereby causing insufficient water mist between the two dust collecting plates 8 and reducing the dust removal efficiency. By setting the mounting bracket 9 and the card Slot 12 and bolt 11. When replacing the dust collecting plate 8, the old dust collecting plate 8 is disassembled and the new dust collecting plate 8 is inserted into the slot 12 on the fixing plate 2. The mounting bracket 9 is placed on the fixing plate 2 and the dust collecting plate 8 is replaced by tightening four bolts 11. The practicability of the device is improved. By setting the return pipe 15 and the sealing ring 5, the spraying liquid flows into the connecting pipe 3 through the water inlet pipe 4, and then flows into the drain pipe 6 from the connecting pipe 3. The excess spraying liquid flows into the drain pipe 6 through the return pipe 15, and continues to be sprayed between the dust collecting plates 8 through the spray head 7, avoiding the waste of excess spraying liquid. Through the sealing ring 5, when connecting the external water pipe, To prevent the spray liquid from leaking at the interface, thereby improving its sealing performance, a vibration motor 20 is provided, which drives the sewage discharge place 18 to vibrate. With the shaking of the sewage discharge place 18, the materials accumulated on the inner wall of the sewage discharge place 18 can be shaken off, thereby indirectly improving the dust removal effect and preventing the material residue from remaining on the inner wall of the sewage discharge place 18. A driving component 24 is provided, and the bevel gear 1 243 on the transmission shaft 242 is driven to rotate by the motor 1 241, and the bevel gear 1 243 drives the bevel gear 2 244 to rotate, thereby driving the fixed ring 251 on the connecting shaft 245 to rotate, and then the fixed ring 251 drives the six connecting rods 252 to clean the diversion cylinder 21. Thereby, the cleaning of the diverter tube 21 is made faster. By setting up the cleaning device 25, the six connecting rods 252 are driven to rotate by the fixing ring 251, so that the cleaning plate 1 253 and the cleaning plate 2 254 on the connecting rod 252 clean the inner surface of the diverter tube 21, and prevent the impurities in the sewage from remaining in the diverter tube 21 for a long time, corroding the diverter tube 21 and causing damage to the diverter tube 21, thereby improving the practicality of the device. By setting up the fixing bracket 28 and the anti-skid plate 29, when the device is used, the fixing bracket 28 makes the device more stable, and the anti-skid plate 29 prevents the device from moving when in use, thereby affecting the operation of the internal equipment.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A secondary voltage limiting device for a wet electrostatic precipitator, comprising a dust removal box (1); characterized in that: The dust removal box (1) is fixedly connected to a fixing plate (2), the fixing plate (2) is provided with five slots (12), a dust collecting plate (8) is arranged in the slots (12), the fixing plate (2) is fixedly connected to a connecting pipe (3), the connecting pipe (3) is provided with a plurality of drainage pipes (6), the connecting pipe (3) is fixedly connected to a water inlet pipe (4), the water inlet pipe (4) passes through the dust removal box (1), the drainage pipe (6) is provided with a plurality of spray heads (7), the dust collecting plate (8) is fixedly connected to a mounting bracket (9), the mounting bracket (9) is provided with four bolts (11), the mounting bracket (9) is fixedly connected to a connection point (10), the four bolts (11) are detachably connected to the same fixing plate (2), and the spray head (7) is arranged on the side of the dust collecting plate (8).

2. A secondary voltage limiting device for a wet electrostatic precipitator according to claim 1, characterized in that: The fixed plate (2) is provided with four connection points (14), the connection points (14) are fixedly connected to a cathode plate (13), the drainage pipe (6) is connected to a return pipe (15), the bottoms of a plurality of drainage pipes (6) are connected to the same return pipe (15), and the water inlet pipe (4) is provided with a sealing ring (5).

3. A secondary voltage limiting device for a wet electrostatic precipitator according to claim 1, characterized in that: The dust removal box (1) is connected to a separation plate (19), the dust removal box (1) is fixedly connected to a sewage discharge port (18), two vibration motors (20) are arranged on the sewage discharge port (18), a diversion cylinder (21) is connected to the sewage discharge port (18), a protective shell (22) is fixedly connected to the diversion cylinder (21), two fixing columns (23) are arranged on the protective shell (22), and the other ends of the two fixing columns (23) are fixed to the diversion cylinder (21).

4. A secondary voltage limiting device for a wet electrostatic precipitator according to claim 3, characterized in that: A drive assembly (24) is arranged in the protective shell (22), and the drive assembly (24) comprises a motor 1 (241), a transmission shaft (242) is fixedly connected to the motor 1 (241), a bevel gear 1 (243) is arranged on the transmission shaft (242), a bevel gear 1 (243) is connected to a bevel gear 2 (244), a connecting shaft (245) is connected to the bevel gear 2 (244), and a cleaning device (25) is connected to the connecting shaft (245).

5. A secondary voltage limiting device for a wet electrostatic precipitator according to claim 4, characterized in that: The cleaning device (25) comprises a fixing ring (251), six connecting rods (252) are arranged on the fixing ring (251), the other end of the connecting rod (252) is fixedly connected to a cleaning plate 1 (253), the bottom of the connecting rod (252) is provided with a cleaning plate 2 (254), the bottom of the fixing ring (251) is fixedly connected to a fixing rod (255), and the fixing rod (255) is provided with a spiral blade (256).

6. A secondary voltage limiting device for a wet electrostatic precipitator according to claim 5, characterized in that: The bottom of the flow dividing cylinder (21) is fixedly connected to a sewage discharge pipe (26), a valve (27) is provided on the sewage discharge pipe (26), and the spiral blade (256) is arranged in the sewage discharge pipe (26).

7. A secondary voltage limiting device for a wet electrostatic precipitator according to claim 1, characterized in that: A fixed bracket (28) is fixedly connected to the dust removal box (1), two anti-slip plates (29) are provided on the fixed bracket (28), and an air inlet (16) and an air outlet (17) are provided on the dust removal box (1).

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