Catalytic ozonation system for treating waste gas

Abstract

The catalytic ozonation system comprises a catalytic reactor, an ozone generator, a waste gas conveyor and an ozone detector, the catalytic reactor is provided with a reaction cavity and an exhaust port communicated with the reaction cavity, the ozone generator is used for generating ozone and is communicated with the reaction cavity through an ozone pipeline, and the exhaust port is communicated with the reaction cavity through an ozone pipeline. The waste gas conveyor is communicated with the reaction cavity through a waste gas pipeline, the waste gas conveyor is used for introducing waste gas into the reaction cavity, the ozone detector is connected with the ozone generator, and the ozone detector is used for detecting the concentration value of ozone in gas discharged by the catalytic reactor through the exhaust port and controlling the ozone generation rate of the ozone generator according to the detected concentration value. According to the catalytic ozonation system, the concentration of ozone in the decomposition and oxidation process can be effectively controlled, so that VOCs in waste gas can be effectively purified and treated, and secondary pollution generated in the purification treatment process is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of waste gas treatment, and in particular to an ozone catalytic oxidation system for treating waste gas. Background Art

[0002] Volatile organic compounds (VOCs) are usually divided into several categories, such as non-methane hydrocarbons, oxygen-containing organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, and sulfur-containing organic compounds. They mainly come from coal chemical industry, petrochemical industry, fuel coating manufacturing, solvent manufacturing and use, etc. Since most VOCs are toxic and carcinogenic, directly emitting gases containing VOCs into the atmosphere will not only cause secondary pollution, but also endanger human health. Therefore, in industrial production, it is necessary to purify the waste gas containing VOCs.

[0003] At present, one of the more commonly used purification methods is to use ozone and hydroxyl radicals in photocatalytic oxidation equipment to carry out synergistic decomposition and oxidation reaction of malodorous gases. However, due to the limitations of high-energy ultraviolet beams and light source reaction conditions, photocatalytic oxidation equipment is not easy to control the production concentration of ozone, which makes it easy to produce intermediate by-products such as ketones and aldehydes during the purification process, thus causing secondary pollution. Summary of the invention

[0004] Based on this, it is necessary to provide an ozone catalytic oxidation system for treating waste gas to address the above problems. The ozone catalytic oxidation system can effectively control the concentration of ozone during the decomposition and oxidation process, thereby effectively purifying the VOCs in the waste gas and avoiding secondary pollution during the purification process.

[0005] The technical solution is as follows:

[0006] An ozone catalytic oxidation system for treating waste gas, comprising:

[0007] A catalytic reactor, wherein the catalytic reactor is provided with a reaction chamber and an exhaust port communicated with the reaction chamber;

[0008] An ozone generator, the ozone generator is used to generate ozone, and the ozone generator is connected to the reaction chamber through an ozone pipeline;

[0009] An exhaust gas conveyor, the exhaust gas conveyor is connected to the reaction chamber through an exhaust gas pipeline, and the exhaust gas conveyor is used to introduce exhaust gas into the reaction chamber;

[0010] An ozone detector is connected to the ozone generator, and is used to detect the concentration of ozone in the gas discharged from the catalytic reactor through the exhaust port, and to control the rate at which the ozone generator generates ozone according to the detected concentration.

[0011] In the above-mentioned ozone catalytic oxidation system, the ozone generator introduces ozone into the reaction chamber through the ozone pipe, the exhaust gas conveyor introduces exhaust gas into the reaction chamber through the exhaust gas pipe, and the ozone detector is connected to the ozone generator, so that the VOCs in the exhaust gas can be fully decomposed and oxidized by ozone in the reaction chamber, thereby achieving the effect of purifying the VOCs in the exhaust gas and avoiding the secondary pollution caused by the direct emission of VOCs. Among them, since the ozone detector can adjust the rate of ozone production by the ozone generator in real time according to the detection results, the ozone catalytic oxidation system can effectively control the concentration of ozone in the reaction chamber, thereby ensuring that ozone fully oxidizes VOCs, and can also avoid the production of intermediate by-products such as ketones and aldehydes, effectively ensuring the purification effect of the exhaust gas treatment. Therefore, the ozone catalytic oxidation system can effectively ensure the concentration of ozone during the decomposition and oxidation process, thereby effectively purifying the VOCs in the exhaust gas and avoiding secondary pollution during the purification process. In addition, since the ozone catalytic oxidation system can be put into use by simply starting the ozone generator and the exhaust gas conveyor, and the system maintenance can be completed by simply inspecting whether the equipment in the system is operating normally during production and use, the ozone catalytic oxidation system has the characteristics of simple operation and maintenance.

[0012] The technical solution is further described below:

[0013] In one embodiment, the reaction chamber is provided with a first input pipe and a second input pipe, and the first input pipe and the second input pipe are spaced apart in the height direction of the catalytic reactor, one end of the first input pipe passes through the reaction chamber and is connected to the ozone pipe, and a portion of the first input pipe located in the reaction chamber is provided with a plurality of first gas outlets, and the plurality of first gas outlets are arranged along the extension direction of the first input pipe, and an opening of each of the first gas outlets faces the second input pipe, one end of the second input pipe passes through the reaction chamber and is connected to the exhaust gas pipe, and a portion of the second input pipe located in the reaction chamber is provided with a plurality of second gas outlets, and the plurality of second gas outlets are arranged along the extension direction of the second input pipe, and an opening of each of the second gas outlets faces the first input pipe.

[0014] In one of the embodiments, in the height direction of the catalytic reactor, the first gas outlet and the second gas outlet are arranged opposite to each other in a one-to-one correspondence, and the second gas outlet is higher than the corresponding first gas outlet.

[0015] In one of the embodiments, the reaction chamber is used to contain water, the ozone pipe is used to introduce ozone into the water in the reaction chamber, and the exhaust gas pipe is used to introduce exhaust gas into the water in the reaction chamber. In the height direction of the catalytic reactor, the position of the exhaust port is higher than the liquid level of the water in the reaction chamber.

[0016] In one embodiment, the reaction chamber includes a first space and a second space. In the height direction of the catalytic reactor, the second space is higher than the first space. The ozone pipe and the exhaust gas pipe are both connected to the first space. The second space is used to accommodate the catalyst.

[0017] In one embodiment, a distributor is provided in the reaction chamber, the distributor is connected to the catalytic reactor, and the distributor divides the reaction chamber into the first space and the second space. The distributor is provided with a plurality of uniformly distributed holes, one end of the uniformly distributed holes is connected to the first space, and the other end is connected to the second space.

[0018] In one of the embodiments, the ozone catalytic oxidation system further includes an exhaust pipe, the exhaust pipe is connected to the exhaust port, and the ozone detector is arranged in the exhaust pipe.

[0019] In one of the embodiments, a demister is disposed in the reaction chamber, and in the height direction of the catalytic reactor, the position of the exhaust port is higher than the position of the demister.

[0020] In one of the embodiments, the catalytic reactor is further provided with a drain port, the drain port is communicated with the reaction chamber, and the drain port is equipped with a drain valve.

[0021] In one of the embodiments, the exhaust gas conveyor includes a centrifugal fan, an air outlet surface of the centrifugal fan is connected to the exhaust gas duct, and an air inlet surface of the centrifugal fan is used to be connected to the exhaust gas discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 4 is a schematic diagram of the structure of an ozone catalytic oxidation system in one embodiment.

[0023] Figure 2 It is a schematic cross-sectional structural diagram of a catalytic reactor in one embodiment.

[0024] Description of reference numerals:

[0025] 100. Ozone catalytic oxidation system; 1. Catalytic reactor; 1a. Reaction chamber; 11a. First space; 11b. Second space; 1b. Exhaust port; 11. Defogger; 12. Water; 13. Catalyst; 14. Distributor; 15. Drain valve; 2. Waste gas conveyor; 21. Waste gas pipeline; 22. Waste gas discharge pipe; 3. Ozone generator; 31. Ozone pipeline; 4. First input pipe; 41. First air outlet; 5. Second input pipe; 51. Second air outlet; 6. Exhaust pipe. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0028] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0030] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0032] See also Figure 1 and Figure 2 An ozone catalytic oxidation system 100 for treating waste gas provided in one embodiment of the present application includes a catalytic reactor 1, an ozone generator 3, a waste gas conveyor 2 and an ozone detector (not shown). Among them:

[0033] The catalytic reactor 1 is provided with a reaction chamber 1a and an exhaust port 1b connected to the reaction chamber 1a. The ozone generator 3 is used to generate ozone. The ozone generator 3 is connected to the reaction chamber 1a through an ozone pipe 31. The exhaust gas conveyor 2 is connected to the reaction chamber 1a through an exhaust gas pipe 21. The exhaust gas conveyor 2 is used to introduce exhaust gas into the reaction chamber 1a. The ozone detector is connected to the ozone generator 3. The ozone detector is used to detect the concentration of ozone in the gas discharged from the catalytic reactor 1 through the exhaust port 1b, and control the rate at which ozone is generated by the ozone generator 3 according to the detected concentration.

[0034] Specifically, the ozone generator 3 can generate ozone by electrolyzing oxygen molecules, and the oxygen molecules in the ozone generator 3 can come from an air source or an oxygen source. Compared with the solution of generating ozone by high-energy ultraviolet rays, the ozone catalytic oxidation system 100 not only requires lower energy consumption, but also does not need to frequently replace internal components, so it is beneficial to reduce the operating cost of the ozone catalytic oxidation system 100.

[0035] Among them, the connection between the ozone detector and the ozone generator 3 enables the ozone generator 3 to adjust the speed of generating ozone in real time according to the actual situation. Specifically, when the ozone detector detects that the gas discharged from the catalytic reactor 1 does not contain ozone, it means that the ozone concentration in the reaction chamber 1a is low, which makes the VOCs in the exhaust gas unable to be fully oxidized, that is, the amount of ozone introduced into the reaction chamber 1a by the ozone generator 3 is insufficient, so the ozone detector controls the ozone generator 3 to increase the ozone generation rate according to the detection result to increase the concentration of ozone in the reaction chamber 1a and ensure that the VOCs are fully oxidized. When the ozone detector detects that the ozone content in the gas discharged from the catalytic reactor 1 exceeds the standard, it means that the concentration of ozone in the reaction chamber 1a is too high, resulting in too much residual ozone, so the ozone detector controls the ozone generator 3 to slow down the ozone generation rate according to the detection result to reduce the concentration of ozone in the reaction chamber 1a and ensure that the gas meets the emission standards.

[0036] In the above-mentioned ozone catalytic oxidation system 100, the ozone generator 3 introduces ozone into the reaction chamber 1a through the ozone pipe 31, the waste gas conveyor 2 introduces waste gas into the reaction chamber 1a through the waste gas pipe 21, and the ozone detector is connected to the ozone generator 3, so that the VOCs in the waste gas can be fully decomposed and oxidized by ozone in the reaction chamber 1a, thereby achieving the effect of purifying the VOCs in the waste gas and avoiding the secondary pollution caused by the direct discharge of VOCs. Among them, since the ozone detector can adjust the rate of ozone production by the ozone generator 3 in real time according to the detection results, the ozone catalytic oxidation system 100 can effectively control the concentration of ozone in the reaction chamber 1a, thereby ensuring that ozone fully oxidizes VOCs, and can also avoid the production of intermediate by-products such as ketones and aldehydes, effectively ensuring the purification effect of waste gas treatment. Therefore, the ozone catalytic oxidation system 100 can effectively ensure the concentration of ozone during the decomposition and oxidation process, thereby effectively purifying the VOCs in the waste gas and avoiding secondary pollution during the purification process. In addition, since the ozone catalytic oxidation system 100 can be put into use by simply starting the ozone generator 3 and the exhaust gas conveyor 2, and the system maintenance can be completed by simply inspecting whether the equipment in the system is operating normally during production and use, the ozone catalytic oxidation system 100 has the characteristics of simple operation and maintenance.

[0037] Optionally, in other embodiments, the ozone generator 3 may generate ozone by high-energy ultraviolet rays.

[0038] Optional, such as Figure 1 As shown, the waste gas conveyor 2 includes a centrifugal fan, the outlet surface of the centrifugal fan is connected to the waste gas pipeline 21, and the inlet surface of the centrifugal fan is used to communicate with the waste gas discharge pipe 22. In this way, when the centrifugal fan is working, the centrifugal fan can effectively pass the waste gas containing VOCs into the reaction chamber 1a, thereby effectively ensuring the decomposition and oxidation reaction.

[0039] In one embodiment, in combination Figure 1 and Figure 2 As shown, the reaction chamber 1a is provided with a first input pipe 4 and a second input pipe 5. In the height direction of the catalytic reactor 1, the first input pipe 4 and the second input pipe 5 are spaced apart. One end of the first input pipe 4 passes through the reaction chamber 1a and is connected to the ozone pipe 31. The portion of the first input pipe 4 located in the reaction chamber 1a is provided with a plurality of first gas outlets 41. The plurality of first gas outlets 41 are arranged along the extension direction of the first input pipe 4, and the opening of each first gas outlet 41 faces the second input pipe 5. One end of the second input pipe 5 passes through the reaction chamber 1a and is connected to the exhaust gas pipe 21. The portion of the second input pipe 5 located in the reaction chamber 1a is provided with a plurality of second gas outlets 51. The plurality of second gas outlets 51 are arranged along the extension direction of the second input pipe 5, and the opening of each second gas outlet 51 faces the first input pipe 4. In this way, the ozone blown out of the first air outlet 41 will first flow to the side close to the second input pipe 5 under the action of pressure, and the exhaust gas blown out of the second air outlet 51 will first flow to the side close to the first input pipe 4 under the action of pressure, so that the ozone and the exhaust gas can be mixed more evenly by countercurrent, so that the ozone can better decompose and oxidize the VOCs in the exhaust gas, thereby ensuring the purification treatment effect.

[0040] Further, in one embodiment, if Figure 2 As shown, in the height direction of the catalytic reactor 1, the first gas outlet 41 and the second gas outlet 51 are arranged one by one, and the second gas outlet 51 is higher than the corresponding first gas outlet 41. In this way, once the exhaust gas flows out to the reaction chamber 1a through the first gas outlet 41, it can be surrounded by the ozone in the reaction chamber 1a. Therefore, this design can further ensure that the ozone and the exhaust gas are in full countercurrent contact, so that the ozone can better decompose the VOCs in the oxidized exhaust gas, and effectively ensure the purification treatment effect.

[0041] Optionally, in other embodiments, the second air outlet 51 may be located above the first air outlet 41. Alternatively, the first air outlet 41 and the second air outlet 51 may be arranged in a staggered manner.

[0042] Optional, such as Figure 2As shown, the first input pipe 4 and the second input pipe 5 are arranged opposite to each other in the height direction of the catalytic reactor 1. In this way, the first gas outlet 41 and the second gas outlet 51 can be better ensured to be opposite to each other in the height direction. In other embodiments, the portion of the first input pipe 4 provided with the first gas outlet 41 and the portion of the second input pipe 5 provided with the second gas outlet 51 can also be arranged opposite to each other.

[0043] In one embodiment, in combination Figure 2 As shown, the reaction chamber 1a is used to hold water 12, the ozone pipe 31 is used to pass ozone into the water 12 in the reaction chamber 1a, and the exhaust pipe 21 is used to pass exhaust gas into the water 12 in the reaction chamber 1a. In the height direction of the catalytic reactor 1, the position of the exhaust port 1b is higher than the liquid level of the water 12 in the reaction chamber 1a. Among them, since the flow speed of the exhaust gas and ozone in the water 12 is lower than the flow speed in the anhydrous state, when the exhaust gas and ozone are passed into the reaction chamber 1a containing the water 12, the flow speed of the exhaust gas and ozone will be reduced, so that the oxidation reaction time can be extended by slowing down the gas flow speed, so that the ozone can better oxidize and consume VOCs to better ensure the purification treatment effect. In addition, since the position of the exhaust port 1b is higher than the liquid level of the water 12 in the reaction chamber 1a, the water 12 can also be used to filter the purified gas so as to better meet the gas emission standards.

[0044] Specific, combined Figure 1 and Figure 2 As shown, the portion of the first input pipe 4 disposed in the reaction chamber 1a and the portion of the second input pipe 5 disposed in the reaction chamber 1a are both immersed in the water 12. In this way, the first gas outlet 41 and the second gas outlet 51 are both disposed below the liquid surface, which enables the exhaust gas and the ozone to be fully countercurrently mixed and contacted in the water 12, thereby enabling the ozone to better decompose and oxidize the VOCs, thereby achieving a better purification effect.

[0045] Furthermore, in one embodiment, in combination Figure 1 and Figure 2As shown, the reaction chamber 1a includes a first space 11a and a second space 11b. In the height direction of the catalytic reactor 1, the second space 11b is higher than the first space 11a. The ozone pipe 31 and the exhaust pipe 21 are both connected to the first space 11a, and the second space 11b is used to accommodate the catalyst 13. Among them, at least part of the catalyst 13 can be immersed in water 12. In this way, ozone and exhaust gas containing VOCs can be fully contacted and mixed in the first space 11a and a preliminary oxidation reaction can occur. Then, when the fully mixed gas enters the second space 11b, since part of the ozone can be quickly decomposed into hydroxyl radicals that can oxidize VOCs under the action of the catalyst 13 in the water 12, the hydroxyl radicals and ozone in the second space 11b can synergistically perform a multi-effect oxidation reaction on VOCs, so that VOCs can be converted into small molecular compounds or completely mineralized, thereby greatly improving the treatment efficiency of VOCs gas. Among them, since the synergistic oxidation effect of ozone and hydroxyl radicals is better than the single ozone oxidation effect, the catalyst 13 is arranged in the reaction chamber 1a, which can also effectively improve the utilization rate of ozone in the ozone catalytic oxidation system 100, thereby effectively reducing the operating cost.

[0046] Optionally, the portion of the first input pipe 4 disposed in the reaction chamber 1a and the portion of the second input pipe 5 disposed in the reaction chamber 1a are both disposed in the first space 11a.

[0047] Further, in one embodiment, if Figure 2 As shown, a distributor 14 is provided in the reaction chamber 1a, the distributor 14 is connected to the catalytic reactor 1, and the distributor 14 divides the reaction chamber 1a into a first space 11a and a second space 11b, and the distributor 14 is provided with a plurality of uniform holes, one end of the uniform holes is connected to the first space 11a, and the other end is connected to the second space 11b. In this way, when the mixed gas in the first space 11a enters the second space 11b through the distributor 14, the contact area between the mixed gas and the catalyst 13 can be effectively increased, which is conducive to the ozone catalytic oxidation reaction, and is also conducive to improving the efficiency of the purification treatment and ensuring the effect of the purification treatment.

[0048] Furthermore, in one embodiment, in combination Figure 1 and Figure 2 As shown, the ozone catalytic oxidation system 100 also includes an exhaust pipe 6, which is connected to the exhaust port 1b, and an ozone detector is arranged in the exhaust pipe 6. In this way, the purified gas can be discharged to the outside of the catalytic reactor 1 through the exhaust port 1b and the exhaust pipe 6, thereby avoiding excessive pressure in the reaction chamber 1a due to a large amount of gas accumulation, which is conducive to ensuring the safety and reliability of the ozone catalytic oxidation system 100. Among them, the ozone detector is arranged in the exhaust pipe 6 to accurately detect the concentration of ozone in the purified gas, thereby ensuring that the gas is discharged in compliance with the standard.

[0049] In other embodiments, the ozone detector may also be disposed at the exhaust port 1b.

[0050] Further, in one embodiment, if Figure 2 As shown, a demister 11 is provided in the reaction chamber 1a, and in the height direction of the catalytic reactor 1, the position of the exhaust port 1b is higher than the position of the demister 11. In this way, the demister 11 can perform a demister operation on the gas discharged from the exhaust port to reduce the content of substances that can cause secondary pollution in the purified gas, and ensure that the gas meets the emission standards.

[0051] Optionally, the demister 11 may be disposed between the water 12 and the exhaust port 1 b.

[0052] In one embodiment, in combination Figure 1 and Figure 2 As shown, the catalytic reactor 1 is also provided with a drain port (not shown), which is connected to the reaction chamber 1a and is provided with a drain valve 15. Thus, the water 12 in the reaction chamber 1a can be drained through the drain port and the drain valve 15, so as to facilitate water replacement or quick maintenance.

[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An ozone catalytic oxidation system for treating waste gas, characterized in that: include: A catalytic reactor, wherein the catalytic reactor is provided with a reaction chamber and an exhaust port communicated with the reaction chamber; An ozone generator, the ozone generator is used to generate ozone, and the ozone generator is connected to the reaction chamber through an ozone pipeline; An exhaust gas conveyor, the exhaust gas conveyor is connected to the reaction chamber through an exhaust gas pipeline, and the exhaust gas conveyor is used to introduce exhaust gas into the reaction chamber; An ozone detector is connected to the ozone generator, and is used to detect the concentration of ozone in the gas discharged from the catalytic reactor through the exhaust port, and to control the rate at which the ozone generator generates ozone according to the detected concentration.

2. The ozone catalytic oxidation system for treating exhaust gas according to claim 1, characterized in that: The reaction chamber is provided with a first input pipe and a second input pipe. In the height direction of the catalytic reactor, the first input pipe and the second input pipe are spaced apart. One end of the first input pipe passes through the reaction chamber and is connected to the ozone pipe. A portion of the first input pipe located in the reaction chamber is provided with a plurality of first gas outlets. The plurality of first gas outlets are arranged along the extension direction of the first input pipe, and an opening of each of the first gas outlets faces the second input pipe. One end of the second input pipe passes through the reaction chamber and is connected to the exhaust gas pipe. A portion of the second input pipe located in the reaction chamber is provided with a plurality of second gas outlets. The plurality of second gas outlets are arranged along the extension direction of the second input pipe, and an opening of each of the second gas outlets faces the first input pipe.

3. The ozone catalytic oxidation system for treating exhaust gas according to claim 2, characterized in that: In the height direction of the catalytic reactor, the first gas outlets and the second gas outlets are arranged opposite to each other in a one-to-one correspondence, and the second gas outlets are higher than the corresponding first gas outlets.

4. The ozone catalytic oxidation system for treating exhaust gas according to claim 1, characterized in that: The reaction chamber is used to contain water, the ozone pipe is used to introduce ozone into the water in the reaction chamber, and the exhaust gas pipe is used to introduce exhaust gas into the water in the reaction chamber. In the height direction of the catalytic reactor, the position of the exhaust port is higher than the liquid level of the water in the reaction chamber.

5. The ozone catalytic oxidation system for treating waste gas according to claim 4, characterized in that: The reaction chamber includes a first space and a second space. In the height direction of the catalytic reactor, the second space is higher than the first space. The ozone pipe and the exhaust gas pipe are both connected to the first space. The second space is used to accommodate the catalyst.

6. The ozone catalytic oxidation system for treating exhaust gas according to claim 5, characterized in that: A distributor is provided in the reaction chamber, the distributor is connected to the catalytic reactor, and the distributor divides the reaction chamber into the first space and the second space. The distributor is provided with a plurality of uniformly distributed holes, one end of the uniformly distributed holes is connected to the first space, and the other end is connected to the second space.

7. The ozone catalytic oxidation system for treating exhaust gas according to claim 4, characterized in that: The ozone catalytic oxidation system further comprises an exhaust pipe, the exhaust pipe is communicated with the exhaust port, and the ozone detector is arranged in the exhaust pipe.

8. The ozone catalytic oxidation system for treating exhaust gas according to claim 4, characterized in that: A demister is arranged in the reaction chamber, and in the height direction of the catalytic reactor, the position of the exhaust port is higher than the position of the demister.

9. The ozone catalytic oxidation system for treating exhaust gas according to any one of claims 4 to 8, characterized in that: The catalytic reactor is also provided with a drain port, which is communicated with the reaction chamber and is equipped with a drain valve.

10. The ozone catalytic oxidation system for treating exhaust gas according to claim 1, characterized in that: The exhaust gas conveyor comprises a centrifugal fan, the air outlet surface of the centrifugal fan is connected to the exhaust gas pipeline, and the air inlet surface of the centrifugal fan is used to be connected to the exhaust gas discharge pipe.

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