Plasma catalysis CO2 reduction device

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By setting up a cleaning box and a purification box in the plasma catalytic CO2 reduction device, spraying and treating particulate impurities in the exhaust gas, and cleaning the electrode sheets with a detachable regulator and cleaning board, the electrode discharge efficiency and short circuit problems caused by particulate adsorption are solved, and the electrode is efficiently protected and the device is stable.

CN120285768APending Publication Date: 2025-07-11JIANGSU UNIV OF TECH

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Patent Information

Application Number: CN202510467978.7
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2025-04-15
Publication Date: 2025-07-11

AI Technical Summary

Technical Problem

Particulate impurities in industrial waste gas will be adsorbed on the electrode surface during plasma catalysis, resulting in reduced electrode discharge efficiency, increased energy consumption and short circuit, affecting the stability and service life of the device.

Method used

A plasma catalytic CO2 reduction device is designed, including a cleaning box and a purification box. By spraying and treating particulate matter in the exhaust gas, it prevents it from adsorbing on the electrode surface. The electrode sheet is cleaned with a detachable regulator and cleaning board to avoid accumulation.

Benefits of technology

It effectively reduces the adsorption of particulate matter on the electrode surface, ensures continuous and efficient discharge of the electrode, extends the service life of the electrode and the device, and saves cleaning time and labor costs.

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Abstract

The invention discloses a plasma catalysis CO2 reduction device, and relates to the technical field of waste gas treatment devices. The device comprises a cleaning box, and one side of the cleaning box is connected with a purification box through an air pipe; multiple first water pipes are fixed to the inner wall of the cleaning box, and multiple atomizing nozzles are fixed to the inner rings of the first water pipes. A second water pipe is fixed to one side of the first water pipes, a water pump is fixed to one side of the second water pipe, and a third water pipe is fixed to one side of the input end of the water pump; a plurality of supporting plates are fixed to the inner wall of the cleaning box. Through holes are formed in the surfaces of the supporting plates. The upper surface of the supporting plate is movably connected with a supporting frame. Under the action of the cleaning box, particulate impurities in industrial waste gas can be sprayed, solid impurities are prevented from being adsorbed on the surface of an electrode of a plasma generator in the subsequent catalysis process, the discharge efficiency of the electrode is prevented from being reduced, short circuit of an electrode plate is avoided, and the service life of the electrode plate is prolonged. The stability and the service life of the device are influenced.

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Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment devices, and in particular relates to a plasma catalytic CO2 reduction device. Background Art

[0002] With the acceleration of the global industrialization process, a large amount of waste gas containing carbon dioxide is discharged into the atmosphere, which not only aggravates the greenhouse effect, but also causes a huge waste of energy. Therefore, CO2 emission reduction and resource utilization have become one of the key issues that need to be urgently solved in today's society. Plasma catalysis technology, as a highly potential means of CO2 reduction, has received widespread attention in recent years. This technology uses high-energy electrons, ions, free radicals and other active species generated by plasma to stimulate the chemical bonds of CO2 molecules, making them more susceptible to chemical reactions, and then converting them into valuable hydrocarbons or other carbon-containing products, such as carbon monoxide and methane, under the action of catalysts.

[0003] However, in practical applications, the composition of industrial waste gas is complex and diverse. In addition to CO2, it also contains a large amount of particulate impurities, such as dust, smoke, metal particles, etc. These particulate impurities will cause many negative problems in the plasma catalysis process. Among them, particulate matter will be adsorbed on the electrode surface of the plasma generator. As time accumulates, it reduces the discharge efficiency of the electrode, increases energy consumption, and even causes the electrode to short-circuit, affecting the stability and service life of the device. Summary of the invention

[0004] The object of the present invention is to provide a plasma catalytic CO2 reduction device. Through the function of a cleaning box, particulate impurities in industrial waste gas can be sprayed to prevent solid impurities from being adsorbed on the electrode surface of a plasma generator in a subsequent catalytic process, thereby preventing them from reducing the discharge efficiency of the electrode, and preventing the electrode sheet from short-circuiting, thereby affecting the stability and service life of the device; by preliminarily cleaning the waste gas, particulate matter entering the purification box can be greatly reduced, and adsorption and accumulation of particulate matter on the surface of the electrode sheet can be avoided, thereby protecting the electrode sheet, ensuring continuous and efficient discharge of the electrode sheet, and extending the service life of the electrode sheet and the entire device, thereby solving the problem that the existing particulate matter will be adsorbed on the electrode surface of the plasma generator, which will reduce the discharge efficiency of the electrode, increase energy consumption, and even cause the electrode to short-circuit, thereby affecting the stability and service life of the device.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A plasma catalytic CO2 reduction device comprises a cleaning box, one side of which is connected to a purification box via an air pipe;

[0007] A number of first water pipes are fixed to the inner wall of the cleaning box, and a number of atomizing nozzles are fixed to the inner circle of the first water pipes;

[0008] A second water pipe is fixed to one side of a number of the first water pipes, a water pump is fixed to one side of the second water pipe, a third water pipe is fixed to one side of the input end of the water pump, and a water storage tank is fixed to one end of the third water pipe;

[0009] A number of support plates are fixed to the inner wall of the cleaning box, and through holes are formed on the surfaces of the support plates;

[0010] A support frame is movably connected to the upper surface of the support plate, and a positioning rod is fixed to the bottom of the support frame;

[0011] A positioning hole is formed in the center of the support frame, and limiting grooves are fixed to both sides of the support frame;

[0012] A number of mounting plates are fixed to one side of the limiting groove close to the positioning rod, and mounting grooves are formed on the surfaces of the mounting plates;

[0013] A box cover is fixed to the upper surface of the cleaning box by a first bolt;

[0014] A placement hole is formed on the surface of the box cover, an air inlet pipe passes through the inside of the placement hole, and a protective pipe is fixed to the outside of the air inlet pipe;

[0015] A fixing rod is fixed to the outside of the protective pipe;

[0016] One end of the air inlet pipe passes through the positioning hole;

[0017] Reinforcing plates are fixed to both sides of the cleaning box and the box cover.

[0018] The present invention is further configured such that: the protective pipe is of a hollow spherical structure, and the inner wall of the protective pipe communicates with the air inlet pipe;

[0019] An air valve is fixed to the outside of the protective pipe.

[0020] The present invention is further configured such that: a positioning plate is fixed to the outside of the fixing rod;

[0021] One end of the fixing rod is fixed with a mounting shell, and a fixing plate is fixed to the inner wall of the mounting shell;

[0022] Expansion rods are fixed to both sides of the fixing plate, an adjusting plate is fixed to one end of the expansion rod, and a clamping block is fixed to one side of the adjusting plate.

[0023] The present invention is further configured such that: a spring is sleeved on the outside of the expansion rod;

[0024] The clamping block passes through the mounting shell and the mounting groove.

[0025] The present invention is further configured such that: a plurality of reinforcing strips are fixed to the outer side of the positioning rod, and the reinforcing strips are of an annular structure.

[0026] The present invention is further configured such that: sealing plates are fixed to both sides of the purification box, and sealing grooves are formed on the surfaces of the sealing plates;

[0027] Support rods are fixed to the inner wall of the purification box, and insulating brackets are fixed to both ends of the support rods;

[0028] A plurality of electrode plates are fixed between the support rods;

[0029] A regulator is fixed to one side of the sealing plate by a second bolt.

[0030] The present invention is further configured such that: one of the regulators includes a connecting plate, and a sealing strip is fixed to one side of the connecting plate;

[0031] The sealing strip is matched with the sealing groove, and the connecting plate is fixedly connected to the sealing plate by a second bolt.

[0032] The present invention is further configured such that: the other regulator includes a cleaning plate, and a plurality of cleaning grooves are formed on the surface of the cleaning plate;

[0033] A guide groove is fixed to the side of the cleaning plate away from the purification box;

[0034] A guide plate is slidably connected inside the guide groove, a friction plate is fixed to one side of the guide plate, and cleaning strips are fixed to both sides of the friction plate;

[0035] A handle is fixed between a plurality of the guide plates;

[0036] The cleaning plate is fixedly connected to the sealing plate by a second bolt.

[0037] The present invention has the following beneficial effects:

[0038] 1. Through the action of the cleaning box, the present invention can perform spray treatment on particulate impurities in industrial waste gas, avoiding the adsorption of solid impurities on the electrode surface of the plasma generator during the subsequent catalytic process, preventing the reduction of the discharge efficiency of the electrodes, and avoiding the short-circuit of the electrode plates, which may affect the stability and service life of the device; by preliminarily cleaning the waste gas, the particulate matter entering the purification box can be greatly reduced, avoiding its adsorption and accumulation on the surface of the electrode plates, thereby protecting the electrode plates, ensuring the continuous and efficient discharge of the electrode plates, and prolonging the service life of the electrode plates and the entire device.

[0039] 2. Through the function of the regulator, the device can effectively clean the electrode plate without complex disassembly steps, saving cleaning time and labor costs. Regularly cleaning the electrode plate can remove particulate impurities adsorbed on its surface, avoid problems such as reduced electrode discharge efficiency, increased energy consumption, and short circuits, extend the service life of the electrode plate, and ensure the continuous and stable operation of the purification box.

[0040] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0042] Figure 1 It is a schematic structural diagram of a plasma catalytic CO2 reduction device of the present invention.

[0043] Figure 2 It is a schematic external structure diagram of the present invention.

[0044] Figure 3 It is a schematic rear-view perspective structural diagram of the present invention.

[0045] Figure 4 It is a schematic internal structure diagram of the purification box of the present invention.

[0046] Figure 5 It is a schematic bottom-view perspective structural diagram of the present invention.

[0047] Figure 6 It is a schematic rear-view perspective structural diagram of the present invention.

[0048] Figure 7 It is a schematic structural diagram of the support frame of the present invention.

[0049] Figure 8 It is a schematic structural diagram of the protective tube of the present invention.

[0050] Figure 9 For the present invention Figure 8 Partial enlarged view at A in

[0051] Figure 10 It is a schematic structural diagram of the friction plate of the present invention.

[0052] Figure 11 It is a schematic structural diagram of the cleaning plate of the present invention.

[0053] Figure 12Schematic diagram of the connecting plate structure of the present invention.

[0054] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0055] 1 - Cleaning box, 2 - Purification box, 3 - First water pipe, 4 - Atomizing nozzle, 5 - Second water pipe, 6 - Water pump, 7 - Third water pipe, 8 - Water storage tank, 9 - Support plate, 10 - Through hole, 11 - Support frame, 12 - Positioning rod, 13 - Positioning hole, 14 - Limiting groove, 15 - Mounting plate, 16 - Mounting groove, 17 - Box cover, 18 - Placing hole, 19 - Intake pipe, 20 - Protection pipe, 21 - Fixed rod, 22 - Reinforcing plate, 23 - Air valve, 24 - Positioning plate, 25 - Mounting shell, 26 - Fixed plate, 27 - Telescopic rod, 28 - Adjusting plate, 29 - Clamping block, 30 - Spring, 31 - Reinforcing strip, 32 - Sealing plate, 33 - Sealing groove, 34 - Support rod, 35 - Insulating bracket, 36 - Electrode plate, 37 - Regulator, 371 - Connecting plate, 372 - Sealing strip, 373 - Cleaning plate, 374 - Cleaning groove, 375 - Guide groove, 376 - Guide plate, 377 - Friction plate, 378 - Cleaning strip, 379 - Handle. Detailed implementation manners

[0056] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the attached drawings and in combination with the embodiments.

[0057] It should be pointed out that, unless otherwise specified, all the technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0058] In the present invention, unless otherwise stated, the orientations such as "upper, lower" are generally in the directions shown in the attached drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the sake of easy understanding and description, "left, right" are generally in the left and right shown in the attached drawings; "inside, outside" refer to the inside and outside relative to the contours of the respective components, but the above orientation terms do not limit the present invention.

[0059] For the first specific embodiment, please refer to Figures 1 - 12, the present invention is a plasma catalytic CO2 reduction device, including a cleaning box 1, one side of the cleaning box 1 is connected to a purification box 2 through a trachea; several first water pipes 3 are fixed on the inner wall of the cleaning box 1, and several atomizing nozzles 4 are fixed on the inner circle of the first water pipes 3; several first water pipes 3 are fixed to a second water pipe 5 on one side, a water pump 6 is fixed to one side of the second water pipe 5, a third water pipe 7 is fixed to one side of the input end of the water pump 6, and one end of the third water pipe 7 is fixed to a water storage tank 8; several support plates 9 are fixed on the inner wall of the cleaning box 1, and through holes 10 are opened on the surface of the support plates 9; a support frame 11 is movably connected to the upper surface of the support plate 9, and a positioning rod 12 is fixed to the bottom of the support frame 11; a positioning hole 13 is opened in the center of the support frame 11, and limiting grooves 14 are fixed on both sides of the support frame 11; several mounting plates 15 are fixed to one side of the limiting groove 14 close to the positioning rod 12, and mounting grooves 16 are opened on the surface of the mounting plates 15; the upper surface of the cleaning box 1 is fixed with a box cover 17 through a first bolt; a placement hole 18 is opened on the surface of the box cover 17, an air inlet pipe 19 passes through the inside of the placement hole 18, and a protective pipe 20 is fixed to the outside of the air inlet pipe 19; a fixing rod 21 is fixed to the outside of the protective pipe 20; one end of the air inlet pipe 19 passes through the positioning hole 13; reinforcing plates 22 are fixed on both sides of the cleaning box 1 and the box cover 17.

[0060] Specifically, the protective pipe 20 is of a hollow spherical structure, and the inner wall of the protective pipe 20 communicates with the air inlet pipe 19; a gas valve 23 is fixed to the outside of the protective pipe 20.

[0061] Furthermore, several reinforcing strips 31 are fixed to the outside of the positioning rod 12, and the reinforcing strips 31 are of an annular structure.

[0062] The operation process of this embodiment is as follows: when this device is in use, first inject an appropriate amount of clean water into the water storage tank 8 to ensure that the water pump 6 pumps water normally, and then introduce the waste gas containing CO2 from the air inlet pipe 19. The protective pipe 20 outside the air inlet pipe 19 is of a hollow spherical structure, which can prevent the waste water in the cleaning box 1 from flowing back into the air inlet pipe 19. Open the gas valve 23, which can control the gas flow rate; start the water pump 6, the water pump 6 pumps water from the water storage tank 8 through the third water pipe 7, the water flows into the first water pipe 3 through the second water pipe 5, and then is sprayed out by the atomizing nozzles 4 to form water mist; during the upward movement of the waste gas in the cleaning box 1, it fully contacts with the water mist, and the particulate impurities in the waste gas are adsorbed and settled by the water mist. This device sprays and treats the particulate impurities in the industrial waste gas to prevent solid impurities from adsorbing on the electrode surface of the plasma generator during the subsequent catalytic process, preventing it from reducing the discharge efficiency of the electrode, and avoiding the situation that the electrode sheet 36 is short-circuited, affecting the stability and service life of the device; through the preliminary cleaning of the waste gas, the particulate matter entering the purification box 2 can be greatly reduced, avoiding its adsorption and accumulation on the surface of the electrode sheet 36, thereby protecting the electrode sheet 36, ensuring the continuous and efficient discharge of the electrode sheet 36, and extending the service life of the electrode sheet 36 and the entire device.

[0063] Specific embodiment two, please refer toFigures 8 - 9 Based on the first specific embodiment, a positioning plate 24 is fixed on the outer side of the fixed rod 21; one end of the fixed rod 21 is fixed with an installation shell 25, and a fixing plate 26 is fixed on the inner wall of the installation shell 25; telescopic rods 27 are fixed on both sides of the fixing plate 26, one end of the telescopic rod 27 is fixed with an adjusting plate 28, and a clamping block 29 is fixed on one side of the adjusting plate 28.

[0064] Furthermore, a spring 30 is sleeved on the outer side of the telescopic rod 27; the clamping block 29 penetrates through the installation shell 25, and the clamping block 29 penetrates through the installation groove 16.

[0065] The operation process of this embodiment is as follows: when the device is in use, the positioning rod 12 at the bottom of the support frame 11 is movably connected to the upper surface of the support plate 9 on the inner wall of the cleaning box 1. The annular reinforcement strip 31 fixed on the outer side of the positioning rod 12 increases the contact stability and friction between the positioning rod 12 and the support plate 9, so that the support frame 11 will not shake or displace easily during the working process; a plurality of mounting plates 15 are fixed on one side of the limiting grooves 14 on both sides of the support frame 11 close to the positioning rod 12, and mounting grooves 16 are formed on the surfaces of the mounting plates 15; in cooperation with the structure in the installation shell 25 at one end of the fixed rod 21, the clamping block 29 on the adjusting plate 28 at one end of the telescopic rods 27 on both sides of the fixing plate 26 can penetrate through the installation shell 25 and be inserted into the installation groove 16; during installation, by squeezing the adjusting plate 28, the clamping block 29 is contracted, and after aligning the clamping block 29 with the installation groove 16 and releasing it, under the elastic force of the spring 30, the clamping block 29 is clamped into the installation groove 16, realizing the quick installation and fixation of the air inlet pipe 19, which is convenient for the assembly and maintenance of the equipment; during disassembly, by squeezing the adjusting plate 28 again to make the clamping block 29 disengage from the installation groove 16, the components can be easily disassembled.

[0066] For the third specific embodiment, please refer to Figures 10 - 12 Based on the first and second specific embodiments, sealing plates 32 are fixed on both sides of the purification box 2, and sealing grooves 33 are formed on the surfaces of the sealing plates 32; support rods 34 are fixed on the inner wall of the purification box 2, and insulating brackets 35 are fixed at both ends of the support rods 34; a plurality of electrode plates 36 are fixed between the support rods 34; one side of the sealing plate 32 is fixed with a regulator 37 through a second bolt.

[0067] Specifically, a regulator 37 includes a connecting plate 371, and a sealing strip 372 is fixed on one side of the connecting plate 371; the sealing strip 372 is matched with the sealing groove 33, and the connecting plate 371 is fixedly connected to the sealing plate 32 through a second bolt.

[0068] Further, another regulator 37 includes a cleaning plate 373 with a plurality of cleaning grooves 374 formed on its surface; a guide groove 375 is fixed to the side of the cleaning plate 373 away from the purification box 2; a guide plate 376 is slidably connected inside the guide groove 375, and a friction plate 377 is fixed to one side of the guide plate 376, and cleaning strips 378 are fixed to both sides of the friction plate 377; a handle 379 is fixed between a plurality of guide plates 376; the cleaning plate 373 is fixedly connected to the sealing plate 32 by a second bolt.

[0069] The operation process of this embodiment is as follows: The gas preliminarily purified by the cleaning box 1 enters the purification box 2 through the air pipe; at this time, the solid connecting plate 371 is installed on the sealing plates 32 on both sides of the purification box 2, and the sealing strip 372 on one side of the connecting plate 371 fits tightly with the sealing groove 33 on the surface of the sealing plate 32 to ensure the airtightness of the purification box 2; the power supply of the electrode plate 36 is turned on, and under the action of plasma catalysis, the CO2 in the waste gas undergoes a reduction reaction near the electrode plate 36; when it is necessary to clean the electrode plate 36 inside the purification box 2, first cut off the power supply of the electrode plate 36; remove the connecting plate 371 from the sealing plate 32 and replace it with the cleaning plate 373, and fix it with a second bolt; insert the friction plate 377 into the cleaning groove 374 on the surface of the cleaning plate 373, and push the guide plate 376 to slide in the guide groove 375 through the handle 379, so that the cleaning strips 378 on both sides of the friction plate 377 contact and rub the two sides of the electrode plate 36, thereby removing the impurities adsorbed on the surface of the electrode plate 36 to achieve the purpose of cleaning; after the cleaning is completed, replace the connecting plate 371 again, turn on the power supply, and make the purification box 2 return to normal operation; this design can effectively clean the electrode plate 36 without complex disassembly steps, saving cleaning time and labor costs; regularly cleaning the electrode plate 36 can remove the particulate impurities adsorbed on its surface, avoid problems such as reduced electrode discharge efficiency, increased energy consumption, and short circuit, extend the service life of the electrode plate 36, and ensure the continuous and stable operation of the purification box.

[0070] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0071] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A plasma-catalytic CO2 reduction device, comprising a cleaning box (1), characterized in that: One side of the cleaning box (1) is connected to a purification box (2) through an air pipe; A number of first water pipes (3) are fixed to the inner wall of the cleaning box (1), and a number of atomizing nozzles (4) are fixed to the inner circle of the first water pipes (3); One side of a number of the first water pipes (3) is fixed to a second water pipe (5), one side of the second water pipe (5) is fixed to a water pump (6), one side of the input end of the water pump (6) is fixed to a third water pipe (7), and one end of the third water pipe (7) is fixed to a water storage tank (8); A number of support plates (9) are fixed to the inner wall of the cleaning box (1), and through holes (10) are formed on the surfaces of the support plates (9); A support frame (11) is movably connected to the upper surface of the support plate (9), and a positioning rod (12) is fixed to the bottom of the support frame (11); A positioning hole (13) is formed in the center of the support frame (11), and limiting grooves (14) are fixed to both sides of the support frame (11); A number of mounting plates (15) are fixed to one side of the limiting groove (14) close to the positioning rod (12), and mounting grooves (16) are formed on the surfaces of the mounting plates (15); A box cover (17) is fixed to the upper surface of the cleaning box (1) through a first bolt; A placement hole (18) is formed on the surface of the box cover (17), an air inlet pipe (19) penetrates through the interior of the placement hole (18), and a protective pipe (20) is fixed to the outside of the air inlet pipe (19); A fixing rod (21) is fixed to the outside of the protective pipe (20); One end of the air inlet pipe (19) penetrates through the positioning hole (13); Reinforcing plates (22) are fixed to both sides of the cleaning box (1) and the box cover (17).

2. The plasma catalytic CO2 reduction device according to claim 1, characterized in that, The protective pipe (20) has a hollow spherical structure, and the inner wall of the protective pipe (20) communicates with the air inlet pipe (19); An air valve (23) is fixed to the outside of the protective pipe (20).

3. The plasma catalytic CO2 reduction device according to claim 1, characterized in that, A positioning plate (24) is fixed to the outside of the fixing rod (21); One end of the fixing rod (21) is fixed to a mounting shell (25), and a fixing plate (26) is fixed to the inner wall of the mounting shell (25); Expansion rods (27) are fixed to both sides of the fixing plate (26), one end of the expansion rods (27) is fixed to an adjusting plate (28), and a clamping block (29) is fixed to one side of the adjusting plate (28).

4. The plasma catalytic CO2 reduction device according to claim 3, wherein, A spring (30) is sleeved on the outside of the expansion rod (27); The clamping block (29) penetrates through the mounting shell (25), and the clamping block (29) penetrates through the mounting groove (16).

5. A plasma catalytic CO2 reduction device according to claim 1, characterized in that, A number of reinforcing strips (31) are fixed to the outside of the positioning rod (12), and the reinforcing strips (31) have an annular structure.

6. The plasma catalytic CO2 reduction device according to claim 1, characterized in that, Sealing plates (32) are fixed to both sides of the purification box (2), and sealing grooves (33) are formed on the surfaces of the sealing plates (32); Support rods (34) are fixed to the inner wall of the purification box (2), and insulating brackets (35) are fixed to both ends of the support rods (34); A number of electrode plates (36) are fixed between the support rods (34); A regulator (37) is fixed to one side of the sealing plate (32) through a second bolt.

7. The plasma catalytic CO2 reduction device according to claim 6, characterized in that, One of the regulators (37) includes a connecting plate (371), and a sealing strip (372) is fixed to one side of the connecting plate (371); The sealing strip (372) is matched with the sealing groove (33), and the connecting plate (371) is fixedly connected to the sealing plate (32) by a second bolt.

8. The plasma catalytic CO2 reduction device according to claim 6, characterized in that, Another said regulator (37) includes a cleaning plate (373), and a plurality of cleaning grooves (374) are formed on the surface of the cleaning plate (373); A guide groove (375) is fixed to the side of the cleaning plate (373) away from the purification box (2); A guide plate (376) is slidably connected inside the guide groove (375), a friction plate (377) is fixed to one side of the guide plate (376), and cleaning strips (378) are fixed to both sides of the friction plate (377); A handle (379) is fixed between a plurality of said guide plates (376); The cleaning plate (373) is fixedly connected to the sealing plate (32) by a second bolt.