Photoelectrocatalytic degradation device for gaseous pollutants

Abstract

The invention discloses a gas pollutant photoelectrocatalytic degradation device, and relates to the technical field of pollutant treatment.The gas pollutant photoelectrocatalytic degradation device comprises a treatment box, four partition plates are fixedly installed in the treatment box, a pollutant degradation structure is arranged between every two adjacent partition plates, and each pollutant degradation structure comprises four filter cartridges and five second linear light sources; first linear light sources are arranged in the four filter cartridges, U-shaped frames are fixedly installed on the outer sides of the four filter cartridges, sponge blocks are fixedly installed on the outer sides of the U-shaped frames, and gear transmission assemblies are arranged on one sides of the three pollutant degradation structures. The three pollutant degradation structures can be cleaned under transmission of the three gear transmission assemblies, impurities attached to the outer sides of the four filter cartridges, the four first linear light sources and the five second linear light sources are reduced, and the labor cost input needed by maintenance of the photoelectrocatalytic degradation device is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pollutant treatment, and in particular to a device for photoelectric catalytic degradation of gaseous pollutants. Background Art

[0002] Volatile organic compounds (VOCs) are important precursors of common atmospheric pollutants such as PM2.5 and ozone (O3). Their emissions are high and their composition is complex, making their control quite challenging. Existing VOC control technologies are primarily categorized into several categories: physical adsorption, combustion, absorption, and chemical scrubbing. All of these methods are used in production. Due to the complexity of VOC composition, photocatalytic technologies, which offer excellent degradation efficiency and are non-selective towards VOCs, have become a new research hotspot in the field of air purification. For example, patent application number 202310728079.9 discloses an adsorption-based photoelectrocatalytic degradation device, which relates to the technical field of waste gas treatment. The device comprises a reaction chamber having an air inlet at one end and an air outlet at the other. The reaction chamber comprises at least one airflow distributor, with at least one activated carbon fiber roll mounted on its end surface. The roll is open at one end and sealed at the other. Both the airflow distributor and the roll contain a light source. A photocatalyst is attached to the roll, which is equipped with electrodes capable of applying a fixed bias voltage.

[0003] When the above-mentioned photoelectrocatalytic degradation treatment device is used, three or even more electrocatalytic degradation treatment devices will be connected in series to form a multi-stage treatment equipment to improve the quality of gas pollutant treatment. However, the photoelectrocatalytic degradation treatment device is generally composed of multiple drums and multiple light sources. Although the multi-stage treatment equipment improves the treatment quality, the setting of multiple drums and multiple light sources greatly increases the difficulty of dust cleaning and increases the labor cost investment in maintaining the photoelectrocatalytic degradation treatment device. Summary of the Invention

[0004] The object of the present invention is to provide a device for photoelectrocatalytic degradation of gaseous pollutants to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a processing box, four partition plates are fixedly installed inside the processing box, a pollutant degradation structure is arranged between two adjacent partition plates, the pollutant degradation structure includes four filter cartridges and five linear light sources 2, wherein four linear light sources 2 are located between two of the filter cartridges, and another linear light source 2 is located in the center of the four filter cartridges, a linear light source 1 is arranged inside each of the four filter cartridges, a U-shaped frame is fixedly installed on the outside of the four filter cartridges, a sponge block is fixedly installed on the outside of the U-shaped frame, a gear transmission assembly is arranged on one side of the three pollutant degradation structures, the three gear transmission assemblies all include a transmission shaft 4, a sampling assembly is arranged between the three transmission shafts 4, and an ash discharge trough 1, an arc plate and an ash discharge trough 2 are arranged on one side of the bottom of the three pollutant degradation structures.

[0006] Furthermore, a support frame is fixedly installed at the bottom of the processing box, an air intake elbow is fixedly installed at the air inlet end of the processing box, and an exhaust pipe is fixedly installed at the air outlet end of the processing box.

[0007] Furthermore, four diversion grooves are provided on one side of the four partition plates, and the four filter cartridges are arranged on the side of the partition plate away from the air intake bend pipe. The end of the filter cartridge facing the air intake bend pipe is an open end, and the end of the filter cartridge away from the air intake bend pipe is a closed end. The filter cartridge is rotatably connected to the partition plate, and a negative metal electrode and a positive metal electrode are fixedly installed on the outside of the filter cartridge.

[0008] Furthermore, one end of the linear light source is rotatably connected to a mounting bracket 1, which is fixedly installed inside the partition plate. The other end of the linear light source is fixedly installed with a transmission shaft 1, which passes through the filter cartridge at one end and is rotatably connected to the filter cartridge. A gear component 2 is fixedly installed on the outside of the transmission shaft 1, and a gear component 1 is fixedly installed on the outside of the filter cartridge. The transmission shaft 1 passes through the gear component 1.

[0009] Furthermore, one end of the linear light source 2 is rotatably connected to the adjacent partition plate, and the other end of the linear light source 2 is fixedly installed with a transmission shaft 3. The gear transmission assembly includes a gear part 4 fixedly installed on the four transmission shafts 3 located on the outer layer, and a transmission shaft 5 fixedly installed on the transmission shaft 3 located in the center. Bevel gears are fixedly installed on the transmission shaft 5 and the transmission shaft 4, and the transmission shaft 5 is meshed with the bevel gears on the transmission shaft 4. A gear part 3 is fixedly installed on the outer side of the transmission shaft 3 located in the center, and a spoke bracket is fixed on the transmission shaft 3. The gear part 3 is meshed with the four gear parts 1, and a transmission ring is installed on the spoke bracket. The outer ring and inner ring of the transmission ring are both set as gear rings. The outer ring of the transmission ring is meshed with the four gear parts 4, and the inner ring of the transmission ring is meshed with the four gear parts 2.

[0010] Furthermore, the top end of the transmission shaft four extends to the top of the processing box and is rotatably connected to the processing box. A gear box is fixedly installed on the top of the processing box. The transmission shaft four in the three gear transmission assemblies are respectively fixedly connected to the three output ends of the gear box. The input end of the gear box is fixedly installed with a drive motor, and the drive motor is fixedly installed on the top of the processing box.

[0011] Furthermore, the sampling assembly includes an air pump fixedly installed on the top of the processing box, a return pipe fixedly installed between the air outlet end of the air pump and the air inlet bend, an air guide pipe fixedly installed on the air inlet end of the air pump, and three three-way valves fixedly installed on the air guide pipe. An air guide box is fixedly installed on one side of the three-way valve, and the air guide box is fixedly installed on the top of the processing box and movably mounted on the outside of the transmission shaft. A sampling tube is fixedly installed on the normally closed end of the three-way valve.

[0012] Furthermore, the interior of the transmission shaft 4 is hollow to form an air guide channel, and both ends of the air guide channel are respectively connected to the interior of the air guide box and the interior of the processing box.

[0013] Furthermore, ash discharge trough 1 and ash discharge trough 2 are both opened on the processing box, the arc plate is inserted into the adjacent ash discharge trough 1, and a mounting frame 2 is fixedly installed between the three arc plates. A pneumatic cylinder is fixedly installed on one side of the mounting frame 2, and the pneumatic cylinder is fixedly embedded in one side of the processing box.

[0014] Furthermore, a junction box is fixedly installed on one side of the processing box, and both ends of the ash discharge trough two are respectively connected to the interior of the junction box and the interior of the adjacent arc plate. A filter screen is fixedly installed on the top of the junction box, and a flaring pipe is provided on the top of the filter screen. The flaring pipe is fixedly connected to the junction box. Two mounting brackets three are fixedly installed on one side of the processing box, and an air pump two is fixedly installed between the two mounting brackets three. The air inlet end of the air pump two is fixedly connected to the flaring pipe. An external threaded part is fixedly installed on the bottom of the junction box, and an internal threaded part is provided on the outer threaded sleeve of the external threaded part.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention only needs to control the operation of the driving motor to clean the three pollutant degradation structures under the transmission of three gear transmission components, reduce the impurities attached to the outside of the four filter cartridges, four linear light sources one and five linear light sources two, and reduce the labor cost investment required for the maintenance of the photoelectric catalytic degradation device.

[0017] The present invention can take samples from the ends of three pollutant degradation structures at one time. Workers can judge the working conditions of the corresponding pollutant degradation structures based on the processing conditions of the samples at the corresponding positions. While timely judging the working conditions of the pollutant degradation structures, they can also locate the pollutant degradation structures with reduced working efficiency or even damaged, making it convenient to arrange maintenance.

[0018] One of the rotating sponge blocks stirs the bottom of the inner cavity of the treatment box, lifts up the dust and impurities at the bottom of the inner cavity of the treatment box, and extracts the dust and impurities inside the treatment box respectively; the vacuum pump 2 that works later extracts air from the inside of the treatment box through the flared pipe, the junction box, the three ash discharge troughs 2 and the three ash discharge troughs 1. The negative pressure inside the ash discharge trough 1 extracts the dust from the inside of the treatment box, and the filter screen filters and intercepts the dust and impurities entering the inside of the vacuum pump 2, so that the dust and impurities remain inside the junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the processing box of the present invention;

[0021] Figure 3 It is a partial structural schematic diagram of the processing box of the present invention;

[0022] Figure 4 This is a schematic structural diagram of the air intake elbow of the present invention;

[0023] Figure 5 Schematic diagram of the structure of the partition plate of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the U-shaped frame of the present invention;

[0025] Figure 7 This is a schematic structural diagram of the transmission shaft 5 of the present invention;

[0026] Figure 8 Schematic diagram of the structure of the air guide pipe of the present invention;

[0027] Figure 9 It is a partial structural schematic diagram of the combiner box of the present invention;

[0028] Figure 10 It is a structural schematic diagram of the expanded tube of the present invention;

[0029] Figure 11 It is a structural schematic diagram of the partition plate and the curved plate of the present invention;

[0030] Figure 12 This is a structural diagram of the second mounting frame of the present invention.

[0031] Reference numerals in the figure: 1, treatment box; 2, support frame; 3, air intake elbow; 4, exhaust pipe; 5, partition plate; 6, diverter trough; 7, filter cartridge; 8, negative metal electrode; 9, positive metal electrode; 10, gear component 1; 11, linear light source 1; 12, mounting frame 1; 13, transmission shaft 1; 14, gear component 2; 15, transmission ring; 16, spoke bracket; 17, transmission shaft 5; 18, gear component 3; 19, linear light source 2; 20, transmission shaft 3; 21, gear component 4; 22, transmission shaft 4; 23, bevel gear; 24. Air guide channel; 25. Gear box; 26. Drive motor; 27. Air pump 1; 28. Air guide box; 29. Three-way valve; 30. Sampling tube; 31. Air guide pipe; 32. Ash discharge chute 1; 33. Curved plate; 34. Mounting bracket 2; 35. Pneumatic cylinder; 36. Ash discharge chute 2; 37. Junction box; 38. Filter; 39. Expanding pipe; 40. Air pump 2; 41. Mounting bracket 3; 42. External threaded part; 43. Internal threaded part; 44. Gear ring; 45. U-shaped frame; 46. Sponge block; 47. Return pipe. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0033] Example: Figures 1-12 As shown, the present invention provides a technical solution for a photoelectrocatalytic degradation device of gas pollutants, including a treatment box 1, four partition plates 5 are fixedly installed inside the treatment box 1, and a pollutant degradation structure is arranged between two adjacent partition plates 5. The pollutant degradation structure includes four filter cartridges 7 and five linear light sources 19, wherein four linear light sources 19 are located between each of the filter cartridges 7, and another linear light source 19 is located in the center of the four filter cartridges 7. A linear light source 11 is arranged inside the four filter cartridges 7, a U-shaped frame 45 is fixedly installed on the outside of the four filter cartridges 7, a sponge block 46 is fixedly installed on the outside of the U-shaped frame 45, a gear transmission assembly is arranged on one side of the three pollutant degradation structures, the three gear transmission assemblies include a transmission shaft 4 22, a sampling assembly is arranged between the three transmission shafts 4 22, and an ash discharge trough 1 32, an arc plate 33 and an ash discharge trough 2 36 are arranged on one side of the bottom of the three pollutant degradation structures.

[0034] Specifically, such as Figure 1 、 Figure 4 、 Figure 5 and Figure 6As shown, an air intake elbow 3 is fixedly installed at the air inlet end of the treatment box 1, and the air intake elbow 3 is used for gaseous pollutants to enter the interior of the treatment box 1. An exhaust pipe 4 is fixedly installed at the air outlet end of the treatment box 1, and the exhaust pipe 4 discharges the degraded and purified gas. A support frame 2 is fixedly installed at the bottom of the treatment box 1. Under the support of the support frame 2, the treatment box 1 is in an inclined posture, with the end of the treatment box 1 equipped with the air intake elbow 3 facing downward and the end of the treatment box 1 equipped with the exhaust pipe 4 facing upward;

[0035] Four partition plates 5 are fixedly installed inside the treatment box 1. The four partition plates 5 divide the interior of the treatment box 1 into three degradation spaces. A pollutant degradation structure is provided in each degradation space. Four diversion grooves 6 are provided on one side of the four partition plates 5. The four filter cartridges 7 in the pollutant degradation structure are all provided on the side of the partition plate 5 away from the air intake bend 3. The end of the filter cartridge 7 facing the air intake bend 3 is an open end, and the end of the filter cartridge 7 away from the air intake bend 3 is a closed end. The gas entering the interior of the treatment box 1 through the air intake bend 3 first passes through the diversion groove 6 and enters the interior of the filter cartridge 7. The gas pollutants are filtered by the filter cartridge 7 to intercept particulate matter and then move to the outside of the filter cartridge 7 and enter the interior of the treatment box 1.

[0036] In addition, a photocatalyst is attached to the filter cartridge 7, and a metal electrode negative electrode 8 and a metal electrode positive electrode 9 are fixedly installed on the outside of the filter cartridge 7. The metal electrode negative electrode 8 and the metal electrode positive electrode 9 are both comb-shaped when flattened, and the comb teeth of the metal electrode negative electrode 8 and the metal electrode positive electrode 9 are staggered. The working metal electrode negative electrode 8 and the metal electrode positive electrode 9 generate a coupled electric field covering the outside of the filter cartridge 7. A linear light source 11 is provided inside each of the four filter cartridges 7. Four of the five linear light sources 19 are distributed in a ring shape between the four filter cartridges 7, and the other linear light source 19 is provided in the center of the four filter cartridges 7. The four linear light sources 11 and the five linear light sources 2 19 provide sufficient light for the airflow to ensure that the photocatalyst fully reacts with the gaseous pollutants to degrade them.

[0037] After the gaseous pollutants enter the interior of the treatment box 1 through the air inlet bend 3, they enter the four filter cartridges 7 in the first degradation space under the action of the partition plate 5. In the process of the gaseous pollutants passing through the wall of the filter cartridge 7 and entering the interior of the treatment box 1, the filter cartridge 7 made of activated carbon fiber plays an adsorption role, so that the exhaust gas and the photocatalyst are in more complete contact. The gaseous pollutants come into contact with the photocatalyst attached to the filter cartridge 7. Under the action of the four linear light sources 11 and the five linear light sources 19, the gaseous pollutants react efficiently with the photocatalyst during the flow process; and the gaseous pollutants pass through the coupled electric field covering the outside of the filter cartridge 7. The coupled electric field strongly suppresses the recombination of photogenerated electrons and holes generated by ultraviolet light, thereby improving the photocatalytic activity and accelerating the reaction rate.

[0038] After being degraded by the pollutant degradation structure inside the first degradation space, the gaseous pollutants enter the second and third degradation spaces in turn, so that the gaseous pollutants are processed by the three pollutant degradation structures and then discharged through the exhaust pipe 4. The gaseous pollutants are processed multiple times to ensure the quality of gaseous pollutant treatment.

[0039] Specifically, such as Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the open end of the filter cartridge 7 is rotatably connected to the partition plate 5, and the filter cartridge 7 can rotate. A mounting bracket 12 is rotatably connected to one end of the linear light source 11, and the mounting bracket 12 is fixedly installed inside the partition plate 5. A transmission shaft 13 is fixedly installed on the other end of the linear light source 11. One end of the transmission shaft 13 passes through the filter cartridge 7 and is rotatably connected to the filter cartridge 7, so that the linear light source 11 can rotate inside the filter cartridge 7. A gear part 2 14 is fixedly installed on the outside of the transmission shaft 13, and a gear part 10 is fixedly installed on the outside of the filter cartridge 7. The transmission shaft 13 passes through the gear part 10, and the rotation of the transmission shaft 13 will not affect the operation of the gear part 10.

[0040] One end of the five linear light sources 2 19 is rotatably connected to the adjacent partition plate 5. The five transmission shafts 3 20 in the gear transmission assembly are respectively fixedly connected to the five linear light sources 2 19. The four transmission shafts 3 20 located in the outer layer are fixedly installed with gear members 4 21. One end of the transmission shaft 3 20 located in the center is fixedly installed with a transmission shaft 5 17. The transmission shaft 3 20 located in the center is fixedly installed with a gear member 3 18 and a spoke bracket 16. The gear member 3 18 is meshed with the four gear members 10 distributed in a ring. When the gear member 3 18 rotates, the four gear members 10 rotate on their own, and the filter fixedly connected to the gear member 10 The cylinder 7 rotates; a transmission ring 15 is fixedly mounted on the spoke bracket 16, and the outer ring and inner ring of the transmission ring 15 are both set as gear rings 44. The outer ring of the transmission ring 15 is engaged with the four gear members 4 21, and the inner ring of the transmission ring 15 is engaged with the four gear members 2 14. When the transmission ring 15 rotates, the four gear members 2 14 and the four gear members 4 21 rotate, and the gear member 3 18 drives the linear light source 2 19 in the middle to rotate through the transmission shaft 3 20 in the middle. At this time, the five linear light sources 2 19 and the four linear light sources 11 rotate. Due to the characteristics of the gear transmission, the linear light source 11 has a different rotation direction and rotation speed from the filter cylinder 7.

[0041] Bevel gears 23 are fixedly installed on the outside of the transmission shaft five 17 and the outside of the transmission shaft four 22, and the two bevel gears 23 are meshed with each other; the top of the transmission shaft four 22 extends to the top of the processing box 1 and is rotatably connected to the processing box 1, and a gear box 25 is fixedly installed on the top of the processing box 1. The three transmission shafts four 22 are respectively fixedly connected to the three output ends of the gear box 25, and the driving motor 26 fixedly connected to the input end of the gear box 25 is fixedly installed on the top of the processing box 1 to control the operation of the vacuum pump one 27. The gear box 25 drives the three transmission shafts four 22 to rotate.

[0042] In summary, after the driving motor 26 is controlled to work, the four filter cartridges 7, the four linear light sources 11 and the five linear light sources 2 19 in the three pollutant degradation structures all rotate under the drive of the three gear transmission assemblies.

[0043] Specifically, such as Figure 2 、 Figure 3 and Figure 8 As shown, the sampling assembly consists of an air pump 27 fixedly installed on the top of the processing box 1, a return pipe 47 fixedly installed between the air outlet end of the air pump 27 and the air inlet bend 3, an air guide pipe 31 fixedly installed on the air inlet end of the air pump 27, and three three-way valves 29 fixedly installed on the air guide pipe 31. An air guide box 28 is fixedly installed on one side of the three-way valve 29. The air guide box 28 is fixedly installed on the top of the processing box 1 and movably sleeved on the outside of the transmission shaft four 22, so the rotation of the transmission shaft four 22 will not be affected by the air guide box 28. A sampling tube 30 is fixedly installed on the normally closed end of the three-way valve 29.

[0044] The interior of the transmission shaft 22 is hollow to form an air guide channel 24, and the two ends of the air guide channel 24 are respectively connected to the interior of the air guide box 28 and the interior of the processing box 1, so that the driving motor 26 can draw air from the inside of the processing box 1 through the air guide pipe 31, the three-way valve 29, the air guide box 28 and the air guide channel 24.

[0045] Specifically, such as Figure 2 、 Figure 3 and Figure 8 As shown, the ash discharge trough 1 32 and the ash discharge trough 2 36 are both opened on the processing box 1, and an arc plate 33 is inserted into the ash discharge trough 1 32 to seal the inside of the ash discharge trough 1 32. When the position of the arc plate 33 remains unchanged, the internal gas of the processing box 1 will not leak through the ash discharge trough 1 32. A mounting frame 2 34 is fixedly installed between the three arc plates 33, and a pneumatic cylinder 35 fixedly installed on one side of the mounting frame 2 34 is fixedly embedded in one side of the processing box 1. By controlling the operation of the pneumatic cylinder 35, the three arc plates 33 can be controlled to move inside the ash discharge trough 1 32 through the mounting frame 2 34.

[0046] A junction box 37 is fixedly installed on one side of the processing box 1, and the two ends of the ash discharge trough 36 are respectively connected to the interior of the junction box 37 and the interior of the adjacent arc-shaped plate 33. A filter screen 38 for filtering is fixedly installed on the top of the junction box 37. The flared pipe 39 arranged on the top of the filter screen 38 is fixedly connected to the junction box 37. An air pump 40 is fixedly installed between two mounting frames 41 fixedly installed on one side of the processing box 1. The air inlet end of the air pump 40 is fixedly connected to the flared pipe 39. An external threaded part 42 is fixedly installed on the bottom of the junction box 37, and an internal threaded part 43 is provided on the outer thread of the external threaded part 42.

[0047] The working principle of the photoelectrocatalytic degradation device of this embodiment is as follows:

[0048] During the process of treating gaseous pollutants by the photoelectric catalytic degradation device, the air pump 27 in the sampling assembly is controlled to work, and the air guide pipe 31 fixedly installed at the air inlet end of the air pump 27 is fixedly connected to the normally open end of the three-way valve 29. The working air pump 27 draws air from the inside of the treatment box 1 through the air guide pipe 31, the three-way valve 29, the air guide box 28 and the air guide channel 24 opened on the three transmission shafts 22. The three transmission shafts 22 are respectively arranged at the ends of the three pollutant degradation structures. A return pipe 47 is fixedly installed between the air outlet end of the air pump 27 and the air inlet elbow 3. After the residual gas in the air guide channel 24 is transported and discharged for a period of time, the air guide channel 24 and the air guide box 28 are filled with pollutant degradation structures. For the gas after degradation treatment, the vacuum pump 27 is controlled to stop working, and the normally closed end of the three-way valve 29 is controlled to open. At this time, the gas after degradation treatment by the pollutant degradation structure is discharged through the sampling tube 30 and enters the sampling system set up in advance at one end of the sampling tube 30 by the staff. After a period of time, the normally open end of the three-way valve 29 is controlled to open to complete the sampling work from the end of the pollutant degradation structure. Sampling can be performed from the ends of three pollutant degradation structures at one time. The staff can judge the working condition of the corresponding pollutant degradation structure according to the treatment of the samples at the corresponding position. While timely judging the working condition of the pollutant degradation structure, the pollutant degradation structure with reduced work efficiency or even damaged can be located to facilitate maintenance arrangements.

[0049] After the photoelectrocatalytic degradation device has been working for a period of time to treat gaseous pollutants, the air supply to the inside of the air intake elbow 3 is stopped, and the drive motor 26 is controlled to work. Under the transmission of the gear box 25 and the three gear transmission components, the four filter cartridges 7, the four linear light sources 11 and the five linear light sources 2 19 in each pollutant degradation structure all rotate. Since the gear structures such as the gear part 10, the gear part 2 14, the gear part 3 18, and the gear part 4 21 in the gear transmission component are of different sizes, under the gear transmission characteristics, the rotation directions and rotation speeds of the multiple linear light sources 11 and the multiple filter cartridges 7 are different. The rotating linear light source 2 19, the filter cartridge 7 and the linear light source 11 throw out most of the dust attached to the outside; and the outsides of the four filter cartridges 7 are fixedly installed with a U-shaped frame 45, the U-shaped frame 4 5A sponge block 46 is fixedly installed on the outside, and the filter cartridge 7 drives the U-shaped frame 45 and the sponge block 46 to rotate, and the rotation trajectory of the sponge block 46 is tangent to the rotation trajectory of the four linear light sources 2 19 on the outer layer. The rotation speed of the filter cartridge 7 is different from that of the linear light sources 2 19, so the rotating sponge block 46 has the effect of cleaning the surface of the linear light sources 2 19, ensuring that the linear light sources 2 19 provide sufficient light for the reaction between the gas pollutants and the photocatalyst inside the treatment box 1; supported by the support frame 2 fixedly installed at the bottom of the treatment box 1, the treatment box 1 is in an inclined posture, with the end of the treatment box 1 equipped with the air inlet elbow 3 facing downward, the end of the treatment box 1 equipped with the exhaust pipe 4 facing upward, and the open end of the filter cartridge 7 facing downward. The dust and impurities inside the filter cartridge 7 leave the filter cartridge 7 under the action of gravity.

[0050] It is only necessary to control the driving motor 26 to clean the three pollutant degradation structures under the drive of the three gear transmission components, reduce the impurities attached to the outside of the four filter cartridges 7, the four linear light sources 11 and the five linear light sources 2 19, and reduce the labor cost required for the maintenance of the photoelectric catalytic degradation device.

[0051] In the process of controlling the operation of the vacuum pump 27, the pneumatic cylinder 35 is controlled to work, and the three arc plates 33 move, so that the ash discharge trough 2 36 is connected to the interior of the processing box 1 through the ash discharge trough 1 32, and the partition plate 5 for installing the filter cartridge 7 is set at a position on the top side of the adjacent ash discharge trough 1 32. The ash discharge trough 1 32 is connected to the space on both sides of the partition plate 5. The dust and impurities leaving the interior of the filter cartridge 7, as well as the impurities leaving the outside of the linear light source 2 19 and the outside of the filter cartridge 7 can all enter the interior of the ash discharge trough 1 32. The driving motor 26 works before the pneumatic cylinder 35. One of the rotating sponge blocks 46 stirs the bottom of the inner cavity of the processing box 1, lifts up the dust and impurities at the bottom of the inner cavity of the processing box 1, and respectively extracts the dust and impurities inside the processing box 1. From; the vacuum pump 2 40 that works later draws air from the inside of the processing box 1 through the flared pipe 39, the junction box 37, the three ash discharge troughs 2 36 and the three ash discharge troughs 1 32. Negative pressure occurs inside the ash discharge trough 1 32 to draw the dust out of the inside of the processing box 1, and the filter 38 filters and intercepts the dust and impurities entering the inside of the vacuum pump 2 40, so that the dust and impurities remain in the junction box 37; an external threaded part 42 is fixedly installed at the bottom of the junction box 37, and an internal threaded part 43 with a threaded sleeve on the outer side of the external threaded part 42 is arranged at the bottom of the filter 38. Most of the dust and impurities intercepted by the filter 38 fall into the inside of the internal threaded part 43. The dust and impurities can be collected and processed by simply rotating the internal threaded part 43 after the vacuum pump 2 40 stops working.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A device for photoelectrocatalytic degradation of gaseous pollutants, characterized by: The invention comprises a processing box (1), wherein four partition plates (5) are fixedly installed inside the processing box (1), a pollutant degradation structure is provided between two adjacent partition plates (5), the pollutant degradation structure comprises four filter cartridges (7) and five linear light sources (19), wherein the four linear light sources (19) are located between two of the filter cartridges (7), and another linear light source (19) is located at the center of the four filter cartridges (7), a linear light source (11) is provided inside each of the four filter cartridges (7), a U-shaped frame (45) is fixedly installed outside the four filter cartridges (7), a sponge block (46) is fixedly installed outside the U-shaped frame (45), a gear transmission assembly is provided on one side of the three pollutant degradation structures, the three gear transmission assemblies include a transmission shaft (22), a sampling assembly is provided between the three transmission shafts (22), and a ash discharge trough (32), an arc plate (33) and an ash discharge trough (36) are provided on one side of the bottom of each of the three pollutant degradation structures.

2. The device for photoelectrocatalytic degradation of gaseous pollutants according to claim 1, characterized in that: A support frame (2) is fixedly mounted on the bottom of the processing box (1), an air intake elbow (3) is fixedly mounted on the air intake end of the processing box (1), and an exhaust pipe (4) is fixedly mounted on the air outlet end of the processing box (1).

3. The device for photoelectrocatalytic degradation of gaseous pollutants according to claim 2, characterized in that: Four diversion grooves (6) are provided on one side of each of the four partition plates (5). Four filter cartridges (7) are arranged on a side of the partition plate (5) away from the air intake elbow (3). The end of the filter cartridge (7) facing the air intake elbow (3) is an open end, and the end of the filter cartridge (7) away from the air intake elbow (3) is a closed end. The filter cartridge (7) is rotatably connected to the partition plate (5). A metal electrode negative electrode (8) and a metal electrode positive electrode (9) are fixedly mounted on the outside of the filter cartridge (7).

4. The device for photoelectrocatalytic degradation of gaseous pollutants according to claim 1, characterized in that: One end of the linear light source (11) is rotatably connected to a mounting frame (12), and the mounting frame (12) is fixedly installed inside the partition plate (5). The other end of the linear light source (11) is fixedly installed with a transmission shaft (13), and one end of the transmission shaft (13) passes through the filter cartridge (7) and is rotatably connected to the filter cartridge (7). A gear component (14) is fixedly installed on the outside of the transmission shaft (13), and a gear component (10) is fixedly installed on the outside of the filter cartridge (7). The transmission shaft (13) passes through the gear component (10).

5. The device for photoelectrocatalytic degradation of gaseous pollutants according to claim 1, characterized in that: One end of the linear light source 2 (19) is rotatably connected to the adjacent partition plate (5), and the other end of the linear light source 2 (19) is fixedly installed with a transmission shaft 3 (20). The gear transmission assembly includes a gear member 4 (21) fixedly installed on the four transmission shafts 3 (20) located in the outer layer, a transmission shaft 5 (17) fixedly installed on the transmission shaft 3 (20) located in the center, and a bevel gear (23) fixedly installed on the transmission shaft 5 (17) and the transmission shaft 4 (22). The bevel gears ( 23), a gear part 3 (18) is fixedly installed on the outer side of the transmission shaft 3 (20) located in the center, and a spoke bracket (16) is fixed on the transmission shaft 3 (20), the gear part 3 (18) is meshed with the four gear parts 1 (10), a transmission ring (15) is installed on the spoke bracket (16), the outer ring and the inner ring of the transmission ring (15) are both set as gear rings (44), the outer ring of the transmission ring (15) is meshed with the four gear parts 4 (21), and the inner ring of the transmission ring (15) is meshed with the four gear parts 2 (14).

6. The device for photoelectrocatalytic degradation of gaseous pollutants according to claim 1, characterized in that: The top end of the transmission shaft (22) extends to the top of the processing box (1) and is rotatably connected to the processing box (1). A gear box (25) is fixedly installed on the top of the processing box (1). The transmission shaft (22) in the three gear transmission assemblies is fixedly connected to the three output ends of the gear box (25) respectively. A driving motor (26) is fixedly installed on the input end of the gear box (25). The driving motor (26) is fixedly installed on the top of the processing box (1).

7. The device for photoelectrocatalytic degradation of gaseous pollutants according to claim 1, characterized in that: The sampling assembly comprises an air pump (27) fixedly mounted on the top of the processing box (1), a return pipe (47) fixedly mounted between the air outlet end of the air pump (27) and the air inlet elbow (3), an air guide pipe (31) fixedly mounted on the air inlet end of the air pump (27), and three three-way valves (29) fixedly mounted on the air guide pipe (31); an air guide box (28) is fixedly mounted on one side of the three-way valve (29); the air guide box (28) is fixedly mounted on the top of the processing box (1) and movably sleeved on the outside of the transmission shaft (22); and a sampling tube (30) is fixedly mounted on the normally closed end of the three-way valve (29).

8. The device for photoelectrocatalytic degradation of gaseous pollutants according to claim 7, characterized in that: The interior of the transmission shaft (22) is hollow to form an air guide channel (24), and the two ends of the air guide channel (24) are respectively connected to the interior of the air guide box (28) and the interior of the processing box (1).

9. The device for photoelectrocatalytic degradation of gaseous pollutants according to claim 1, characterized in that: The first ash discharge trough (32) and the second ash discharge trough (36) are both provided on the processing box (1), the arc-shaped plate (33) is inserted into the adjacent first ash discharge trough (32), the second mounting frame (34) is fixedly installed between the three arc-shaped plates (33), the second mounting frame (34) is fixedly installed on one side of the second mounting frame (34), and the pneumatic cylinder (35) is fixedly embedded in one side of the processing box (1).

10. The device for photoelectrocatalytic degradation of gaseous pollutants according to claim 1, characterized in that: A junction box (37) is fixedly installed on one side of the processing box (1), and the two ends of the ash discharge trough (36) are respectively connected to the inside of the junction box (37) and the inside of the adjacent arc plate (33). A filter screen (38) is fixedly installed on the top of the junction box (37), and a flaring pipe (39) is provided on the top of the filter screen (38). The flaring pipe (39) is fixedly connected to the junction box (37). Two mounting brackets (41) are fixedly installed on one side of the processing box (1), and an air pump (40) is fixedly installed between the two mounting brackets (41). The air inlet end of the air pump (40) is fixedly connected to the flaring pipe (39). An external threaded part (42) is fixedly installed on the bottom of the junction box (37), and an internal threaded part (43) is provided on the outer thread of the external threaded part (42).

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