An organic waste gas thermal catalytic oxidation device and its usage method

Abstract

The present invention discloses an organic waste gas thermal catalytic oxidation device and a usage method thereof. The device includes a housing, a heat exchanger, an induction heating device, and a gas turbulator; the housing includes an air inlet chamber, a preheating chamber, a heating chamber, and a circulation chamber which are arranged at intervals by a partition board; the air inlet chamber and the preheating chamber are connected through a heat exchanger; the heat exchanger is a cuboid, and a number of through holes arranged in a mutually perpendicular array are provided inside; a heating air inlet pipe is externally connected to the preheating chamber, and the heating air inlet pipe is connected to the heating chamber through an induction heating device; a gas turbulator is arranged inside the heating chamber, and grid nets for sufficient reaction are provided at both the air inlet end and the air outlet end of the turbulator; a circulation chamber air inlet valve is arranged between the heating chamber and the circulation chamber, and the other side is connected to an air outlet chamber through a heat exchanger; the present invention adopts a modular design, the heat exchanger structure can effectively save heating energy, the turbulator structure can enable the gas to react more fully, and the heating unit also adopts electromagnetic heating, which is more environmentally friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of organic waste gas treatment, and mainly relates to an organic waste gas thermal catalytic oxidation device and a using method thereof. Background Art

[0002] Organic waste gas usually refers to volatile gases generated during industrial production, abbreviated as VOC. It has characteristics such as being flammable, explosive, highly toxic, soluble in organic solvents, and difficult to treat. Currently, the treatment of organic waste gas generally includes methods such as activated carbon adsorption, spray absorption, and thermal combustion. Among them, activated carbon adsorption and spray absorption are essentially the transfer of pollutants, and it is not easy to treat the adsorbed activated carbon and the absorbed solution. Thermal combustion generates water and carbon dioxide, without pollution and no secondary treatment problems. Therefore, thermal combustion has become a good choice for organic waste gas treatment.

[0003] Currently, the most commonly used RTO (regenerative thermal oxidation) and RCO (regenerative catalytic oxidation) technologies both belong to the category of thermal combustion. These technologies have achieved good results in the treatment of organic waste gas, but there are also the following deficiencies:

[0004] 1. Both use burners to heat the organic waste gas to reach the oxidation temperature, and the fuels used by the burners are natural gas or diesel, etc. This inevitably requires dedicated pipelines or oil storage tanks. These devices need to be operated and maintained by professionals, and their use also poses considerable risks.

[0005] 2. In the existing RCO technology, the gas channels for the catalytic oxidation of organic waste gas have a honeycomb-like structure and are coated with a metal catalyst on the surface. Due to the lack of a design for strengthening the contact between the gas and the channel cavity wall, the catalytic oxidation effect of organic waste gas is slightly inferior.

[0006] 3. In the existing RTO technology, the ceramic regenerators used for intake air preheating require valve switching operations, and the working efficiency is not high. In the RCO technology, the shell-and-tube heat exchangers used for intake air preheating do not have a heat storage function, and their heat exchange effect is also unsatisfactory. Neither of them has a design that integrates heat storage and heat exchange.

[0007] To improve the treatment effect of organic waste gas, it is particularly important to overcome the above deficiencies in the existing technology. Summary of the Invention

[0008] Object of the Invention: Aiming at the problems existing in the above background art, the present invention provides an organic waste gas thermal catalytic oxidation device and a using method thereof. Adopting a modular design, the core includes a heating module, a gas catalytic oxidation module, and an intake and exhaust heat exchange module. Each module is improved separately, effectively achieving environmental protection while efficiently completing the waste gas treatment.

[0009] Technical solution: To achieve the above object, the technical solution adopted by the present invention is as follows:

[0010] An organic waste gas thermal catalytic oxidation device includes a housing, a heat exchanger, an induction heating device, and a gas turbulator; the housing includes an air inlet chamber, a preheating chamber, a heating chamber, and a circulation chamber separated by a partition; the air inlet chamber and the preheating chamber are connected through a heat exchanger; the heat exchanger is a cuboid, and a number of through holes perpendicular to each other and arranged in an array are provided inside, and the through holes do not intersect with each other; a heating inlet pipe is externally connected to the preheating chamber, and the heating inlet pipe is connected to the heating chamber through an induction heating device; a gas turbulator is arranged inside the heating chamber; a circulation chamber inlet valve is arranged between the heating chamber and the circulation chamber, and the heating chamber is also connected to an air outlet chamber through a heat exchanger; the outside of the air inlet chamber is connected to an inlet pipe, the outside of the circulation chamber is connected to the inlet pipe through a circulation chamber outlet pipe, and the outside of the air outlet chamber is connected to an outlet pipe.

[0011] Further, the gas turbulator is a cuboid and is made of ceramic material; a number of through holes with corrugated structures arranged in an array are provided along the gas flow direction; grid nets are arranged on the surfaces of the inlet end and the outlet end of the gas turbulator.

[0012] Further, the grid net is made by stacking a number of layers of stainless steel wire mesh layers, and metal catalysts are sprayed on the inner cavity wall of the through holes of the gas turbulator and the surface of the stainless steel wire mesh layers.

[0013] Further, the air inlet chamber is arranged directly above the heat exchanger, and the preheating chamber is connected below the heat exchanger; the gas material flowing out of the gas turbulator flows into the heat exchanger from the left side and flows out of the right side of the heat exchanger to the air outlet chamber; the heat exchanger is made of regenerative ceramics.

[0014] Further, the induction heating device includes an induction section pipe, an induction coil, and an induction core pipe; the induction section pipe is a hollow straight pipe, and induction core pipes are uniformly arranged along the circumference inside the pipe; left and right support sleeves are respectively arranged at both ends of the induction core pipe, and the induction coil is wound around the outer wall of the induction section pipe.

[0015] Further, the inner ring of the left support sleeve includes a first pipe sleeve and a first support body arranged in sequence from the axis to the outside. The first pipe sleeve is a hollow pipe sleeve, and one end of the induction core pipe is installed inside the first pipe sleeve and is further fixed circumferentially by the first support body; the outer ring of the left support sleeve is a circular outer sleeve, and the first support body and the outer sleeve are fixed through uniformly arranged connecting ribs;

[0016] The inner ring of the right support sleeve includes a second pipe sleeve and a second support body arranged in sequence from the axis to the outside. The second pipe sleeve is a hollow pipe sleeve, and the other end of the induction core pipe is installed inside the second pipe sleeve and is further fixed circumferentially by the second support body; the outer ring of the right support sleeve is an annular outer sleeve, and the second support body and the outer sleeve are fixed by evenly arranged connecting ribs; a connecting sleeve hole for connecting with the heating inlet pipe is also arranged on the outside of the right support sleeve;

[0017] Both the left support sleeve and the right support sleeve are fixedly installed at the end of the induction section pipeline by an interference connection method.

[0018] Further, a valve of the circulation bin outlet pipe is arranged on the side of the circulation bin outlet pipe close to the circulation bin; the inlet pipe collects the gas coming from the circulation bin outlet pipe, flows through the fan, and finally enters the inlet bin; a valve of the inlet bin is also arranged between the fan and the inlet bin; a valve of the outlet bin is also arranged on the side of the outlet pipe close to the outlet bin.

[0019] Further, a temperature sensor is arranged at the grid of the gas turbulator inlet end, and a pressure relief valve is also arranged on the outer wall of the heating bin.

[0020] A method of using the above-mentioned organic waste gas thermal catalytic oxidation device includes the following steps:

[0021] Step S1: Open the valve of the inlet bin, the inlet valve of the circulation bin, and the valve of the circulation bin outlet pipe, and close the valve of the outlet bin; start the fan, the organic waste gas passes through the inlet pipe, enters the inlet bin through the valve of the inlet bin, enters the preheating bin through the through holes arranged horizontally in the heat exchanger, and further flows into the heating inlet pipe and the induction heating device and then enters the heating bin; the organic waste gas in the heating bin passes through the grid and the gas turbulator in sequence, enters the circulation bin through the inlet valve of the circulation bin, returns to the inlet end of the fan through the circulation bin outlet pipe through the valve of the circulation bin outlet pipe, and then is sucked into the system by the fan again to complete the circulation;

[0022] Step S2: Connect the power supply of the induction coil, heat the induction core pipe, the organic waste gas passes through the induction heating device from the central hole of the induction core pipe and the outer space of the induction core pipe respectively and is heated, and the temperature of the organic waste gas rises;

[0023] Step S3: The heated organic waste gas flows through the heating bin. When the temperature of the organic waste gas measured by the temperature sensor reaches the temperature required for catalytic oxidation, open the outlet valve, and close the inlet valve of the circulation bin and the valve of the circulation bin outlet pipe; the organic waste gas passes through the inlet end grid, the gas turbulator and the outlet end grid in sequence. After completing the oxidation reaction, the remaining gas flows into the heat exchanger through the through holes arranged horizontally; the high-temperature gas is quickly cooled after storing heat in the heat exchanger, and finally is discharged from the outlet pipe through the valve of the outlet bin.

[0024] Further, after the organic waste gas enters the intake end grille, the stainless steel wire mesh layer sprayed with metal catalyst on the grille pre-treats the organic waste gas; when the pre-treated organic waste gas flows into the gas turbulator, since the through holes with corrugated structures are arranged in an array inside the gas turbulator, when the organic waste gas passes through, the inner through hole diameter changes continuously, generating turbulence, which further strengthens the contact between the organic waste gas and the inner through hole cavity wall. Under the action of the metal catalyst on the inner cavity wall, the oxidation reaction of the waste gas is further strengthened; when the organic waste gas flows out of the gas turbulator, the residual organic waste gas is further catalytically oxidized through the outlet end grille, promoting the oxidation of the organic waste gas into water and carbon dioxide to complete the oxidation reaction. Beneficial effects

[0025] The device of the present invention adopts a modular design, and its core is a heating module, a gas catalytic oxidation module, and an intake and exhaust heat exchange module. Among them, the heating module abandons the traditional thermal combustion heating and adopts the safer and more reliable electromagnetic induction heating. The gas catalytic oxidation module adopts a gas turbulator, making the contact between the gas and the inner cavity wall more sufficient. The intake and exhaust heat exchange module designs a criss-cross heat exchanger, enabling the intake air to be fully preheated, saving energy, and at the same time cooling the outlet gas to effectively protect the environment. Due to the modular design of the present invention, the device can be miniaturized, greatly expanding the application scenarios of the device. The usage method in the present invention is scientific, reasonable, safe and reliable, and can achieve automatic control. Description of the drawings

[0026] Figure 1 is the overall structural schematic diagram of the organic waste gas thermal catalytic oxidation device provided by the present invention;

[0027] Figure 2 is the schematic diagram of the housing of the organic waste gas thermal catalytic oxidation device provided by the present invention;

[0028] Figure 3 is the front view of the induction heating device provided by the present invention;

[0029] Figure 4 is the cross-sectional view of the induction heating device provided by the present invention;

[0030] Figure 5 is the right view of the left support sleeve in the induction heating device provided by the present invention;

[0031] Figure 6 is the cross-sectional view of the left support sleeve in the induction heating device provided by the present invention;

[0032] Figure 7 is the cross-sectional view of the right support sleeve in the induction heating device provided by the present invention;

[0033] Figure 8It is a schematic structural diagram of the gas turbulator provided by the present invention;

[0034] Figure 9 It is a cross-sectional view of the structure of the gas turbulator provided by the present invention;

[0035] Figure 10 It is a schematic structural diagram of the heat exchanger provided by the present invention.

[0036] Description of the reference numerals

[0037] 1 - housing; 2 - intake chamber; 3 - outlet chamber; 4 - preheating chamber; 5 - heating chamber; 6 - circulation chamber; 7 - intake pipe; 8 - intake chamber valve; 9 - fan; 10 - outlet pipe; 11 - outlet chamber valve; 12 - heating intake pipe; 13 - induction heating device; 13-1 - induction section pipe; 13-2 - induction coil; 13-3 - left support sleeve; 13-4 - right support sleeve; 13-5 - induction core pipe; 13-6 induction core pipe central hole; 13-7 - connecting rib; 13-8 - first support body; 13-9 - first pipe sleeve; 13-10 - first through hole; 13-11 - second support body; 13-12 - second pipe sleeve; 13-13 - second through hole; 13-14 - connecting sleeve hole; 14 - gas turbulator; 14-1 - through hole; 15 - grid mesh; 16 - heat exchanger; 16-1 - horizontally arrayed through holes; 16-2 - vertically arrayed through holes; 17 - pressure relief valve; 18 - circulation chamber intake valve; 19 - circulation chamber outlet pipe; 20 - circulation chamber outlet pipe valve; 21 - temperature sensor; 22 - heat exchanger upper mounting hole; 23 - heat exchanger lower mounting hole. Detailed implementation manners

[0038] The following further describes the present invention with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0039] The structure of the organic waste gas thermal catalytic oxidation device provided by the present invention is as Figure 1 shown, including a housing 1, a heat exchanger 16, an induction heating device 13 and a gas turbulator 14. The structure of the housing 1 is as Figure 2 shown. In this embodiment, a modular design is adopted. The cross-section of the housing 1 is rectangular, and the interior is horizontally divided into 4 layers of chambers by a partition. The uppermost layer of the housing is divided into a circulation chamber 6 and an intake chamber 2 by a vertical partition. A circulation chamber intake valve 18 is provided in the lower partition of the circulation chamber 6, and the upper outer wall is connected to the circulation chamber outlet pipe 19 through a circulation chamber outlet pipe valve 20; the circulation chamber outlet pipe 19 is connected to the intake pipe 7 for gas reflux circulation.

[0040] After the intake pipe 7 receives the reflux from the outlet pipe 19 of the circulation bin, it is connected to the fan 9 and is used to extract the organic waste gas in the intake pipe into the intake bin; an intake bin valve 8 is also provided between the intake bin and the fan. An installation hole 22 for the heat exchanger is opened on the lower side of the intake bin 2, and an installation hole 23 for the heat exchanger is opened on the lower bottom plate of the second layer. A heat exchanger 16 is arranged between the first layer and the second layer of the bin chambers.

[0041] The specific structure of the heat exchanger 16 is as Figure 10 shown. In this embodiment, a cubic structure is adopted, which has longitudinally arranged through holes 16-2 arranged in an array and transversely arranged through holes 16-1 arranged in an array, and the longitudinal and transverse through holes are arranged staggered and do not communicate with each other. The heat exchanger 16 is made of regenerative ceramics. Among them, the longitudinal through holes 16-2 penetrate the left and right sides for the flow of the oxidized high-temperature gas, and the transverse through holes 16-1 penetrate the upper and lower sides for the flow of the low-temperature waste gas intake. The heat exchanger 16 can absorb the heat of the high-temperature gas and can also reverse-heat the low-temperature gas, thereby greatly improving the utilization rate of energy and effectively saving the energy required for heating.

[0042] The organic waste gas flows into the third layer of the bin chamber through the heat exchanger 16. The third layer of the bin chamber is a preheating bin 4. A certain space is reserved between the left side wall of the preheating bin and the left side wall of the housing 1 for the subsequent installation of the gas turbulator 14. The right side of the preheating bin is connected to the induction heating device 13 through the heating intake pipe 12.

[0043] The induction heating device 13 is as Figure 3-4 shown, and includes an induction section pipe 13-1, an induction coil 13-2, and an induction core pipe 13-5. The induction section pipe 13-1 is a hollow straight pipe, and the induction core pipe 13-5 is uniformly arranged along the circumference inside the pipe. Left support sleeves 13-3 and right support sleeves 13-4 are respectively provided at both ends of the induction core pipe 13-5, and the induction coil 13-2 is wound on the outer wall of the induction section pipe 13-1.

[0044] As Figure 4 shown, the induction core pipe 13-5 is a hollow tubular made of metal material, which has a central hole 13-6 in the center. Its two ends are installed in the first pipe sleeve 13-9 inside the left support sleeve 13-3 and the second pipe sleeve 13-12 inside the right support sleeve 13-4, and it is suspended in the inner cavity of the induction section pipe 13-1. During operation, after the induction coil 13-2 is energized, the induction core pipe 13-5 is inductively heated. The gas-phase material can pass through the central hole 13-6 of the induction core pipe or through the space between the induction core pipe 13-5 and the induction section pipe 13-1, which can effectively improve the heating effect of the gas-phase material and at the same time effectively reduce the resistance when the gas-phase material passes through.

[0045] The structure of the left support sleeve 13-3 is as Figure 5-6As shown in the figure, the inner ring includes a first pipe sleeve 13-9 and a first support 13-8 arranged successively from the axis outward. The first pipe sleeve 13-9 is a hollow pipe sleeve. One end of the induction core pipe 13-5 is installed inside the first pipe sleeve 13-9 and is further fixed circumferentially by the first support 13-8. The outer ring of the left support sleeve 13-3 is a circular outer sleeve, and the first support 13-8 and the outer sleeve are fixed by evenly arranged connecting ribs 13-7.

[0046] The structure of the right support sleeve 13-4 is as Figure 7 shown. The main structure part is exactly the same as that of the left support sleeve 13-3. The other end of the induction core pipe is installed inside the second pipe sleeve 13-12 and is further fixed circumferentially by the second support 13-11; the outer ring of the right support sleeve is a circular outer sleeve, and the second support 13-11 and the outer sleeve are fixed by evenly arranged connecting ribs. The difference is that a connecting sleeve hole for connecting with the heating inlet pipe is also provided on the outside of the right support sleeve.

[0047] Both the left support sleeve and the right support sleeve are fixedly installed at the end of the induction section pipe by an interference connection method to ensure that they will not loosen during use.

[0048] In this embodiment, the heating inlet pipe 12 and the induction heating device 13 together form an external U-shaped channel, introducing the organic waste gas in the preheating chamber 4 into the fourth layer chamber - the heating chamber 5. A gas turbulator 14 is provided on the left side of the third layer chamber. When the organic waste gas in the heating chamber passes through the gas turbulator, a catalytic oxidation reaction occurs, oxidizing the organic waste gas into carbon dioxide and water. This structure is the main reaction site for catalytic oxidation.

[0049] The structure of the gas turbulator 14 is as Figure 8-9 shown, which is cube-shaped. Its internal through holes 14-1 with corrugated structures are arranged in an array, penetrating its upper and lower surfaces. A metal catalyst is sprayed on the inner cavity wall of the through holes. When the organic waste gas passes through, turbulence is generated due to the continuous change of the diameter of the inner through holes 14-1. The turbulence strengthens the contact between the gas and the inner cavity wall of the through holes, and under the action of the metal catalyst, the process of waste gas oxidation reaction is further strengthened. The gas turbulator 14 is a ceramic body and has a heat storage function in the working state, making the temperature required for the catalytic oxidation of the passing organic waste gas stable and controllable.

[0050] In this embodiment, grid meshes 15 are additionally provided at the inlet end and the outlet end of the gas turbulator 14. The grid meshes are stacked by several layers of stainless steel wire mesh layers, and metal catalysts are sprayed on the surfaces of the wire mesh layers.

[0051] After the organic waste gas undergoes an oxidation reaction in the gas turbulator 14, there are two flow directions. One is to flow upward through the circulation bin intake valve 18 into the circulation bin, and the other is to flow rightward through the heat exchanger 16 into the air outlet bin. When the circulation bin intake valve 18 is closed, the oxidized organic waste gas flows into the air outlet bin through the longitudinal array of through holes 16-2 that penetrate the left and right sides, and then is discharged from the system through the air outlet bin valve 11 and the outlet pipe 10.

[0052] A temperature sensor 21 is provided near the gas turbulator 14 in the heating bin to measure whether the organic waste gas in the heating bin reaches a temperature suitable for oxidation treatment.

[0053] The specific usage method includes the following steps:

[0054] Step S1: Open the intake bin valve 8, the circulation bin intake valve 18, and the circulation bin outlet pipe valve 20, and close the air outlet valve 11. Start the fan 9. The organic waste gas passes through the intake pipe 7, enters the intake bin 2 through the intake bin valve 8, enters the preheating bin 4 through the through holes 16-1 arranged in a horizontal array of the heat exchanger 16, and enters the heating bin 5 through the heating intake pipe 12 and the induction heating device 13. Subsequently, the organic waste gas passes through the grille 15 and the gas turbulator 14, and enters the circulation bin 6 through the circulation bin intake valve 18. The waste gas entering the circulation bin 6 passes through the circulation bin outlet pipe valve 20 and returns to the intake end of the fan 9 through the circulation bin outlet pipe 19, and then is sucked into the system by the fan again to complete the inflation cycle.

[0055] Step S2: Connect the power supply of the induction coil 13-2. Since the induction core tube 13-5 is made of metal, the induction core tube 13-5 is electromagnetically heated at this time. The organic waste gas passes through the central hole 13-6 of the induction core tube and also passes through the space between the induction core tube 13-5 and the induction section pipe 13-1, and the organic waste gas is effectively heated. After being heated, the organic waste gas enters the heating bin 5, and then comes to the temperature sensor 21. When it is measured that the temperature of the organic waste gas reaches the temperature required for catalytic oxidation, such as 300 °C, the air outlet valve 11 is opened, and then the circulation bin intake valve 18 and the circulation bin outlet pipe valve are closed.

[0056] Step S3: When the organic waste gas passes through the lower grille 15, the stainless steel wire mesh layers sprayed with metal catalysts on several layers of the grille 15 play a role in pre-treating the organic waste gas. When the organic waste gas at about 300 °C comes to the gas turbulator 14, due to the internally arranged through holes 14-1 with corrugated structures in the gas turbulator 14, when the organic waste gas passes through, the diameter of the through holes 14-1 continuously changes to generate turbulence. The turbulence strengthens the contact between the organic waste gas and the inner wall of the through hole cavity, and under the action of the metal catalyst, the process of waste gas oxidation reaction is strengthened. When the organic waste gas exits the gas turbulator 14 and meets another grille 15, the remaining organic waste gas is continuously acted on to promote its catalytic oxidation into water and carbon dioxide.

[0057] Step S4: The oxidized high-temperature gas reaches the air outlet chamber 3, and then passes through the through holes 16-2 arranged longitudinally in the heat exchanger. The high-temperature gas can effectively heat the heat exchanger 16, and the heated heat exchanger 16 can also effectively preheat the organic waste gas inlet in the through holes 16-1 arranged transversely in the heat exchanger. The oxidized high-temperature gas is effectively cooled, and finally is discharged from the system through the air outlet valve 11 via the air outlet pipe 10.

[0058] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An organic waste gas thermal catalytic oxidation device, characterized in that, It includes a housing, a heat exchanger, an induction heating device, and a gas turbulator; the housing includes an air inlet chamber, a preheating chamber, a heating chamber, and a circulation chamber separated by a partition; the air inlet chamber and the preheating chamber are connected through the heat exchanger; the heat exchanger is a cuboid with a number of through holes arranged perpendicularly and in an array inside, and the through holes do not intersect with each other; a heating air inlet pipe is externally connected to the preheating chamber, and the heating air inlet pipe and the heating chamber are connected through the induction heating device; a gas turbulator is arranged inside the heating chamber; a circulation chamber air inlet valve is arranged between the heating chamber and the circulation chamber, and the heating chamber is also connected to an air outlet chamber through the heat exchanger; the outside of the air inlet chamber is connected to an air inlet pipe, the outside of the circulation chamber is connected to the air inlet pipe through a circulation chamber outlet pipe, and the outside of the air outlet chamber is connected to an air outlet pipe; The gas turbulator is a cuboid made of ceramic material; there are a number of through holes with corrugated structures arranged in an array along the gas flow direction; grid nets are arranged on the surfaces of the air inlet end and the air outlet end of the gas turbulator; The grid net is made by stacking several layers of stainless steel wire mesh layers, and metal catalysts are sprayed on the inner cavity wall of the through hole of the gas turbulator and the surface of the stainless steel wire mesh layer; The air inlet chamber is arranged directly above the heat exchanger, and the preheating chamber is connected below the heat exchanger; the gas material flowing out of the gas turbulator flows into the heat exchanger from the left side and flows out of the heat exchanger to the air outlet chamber from the right side; the heat exchanger is made of regenerative ceramic; The induction heating device includes an induction section pipe, an induction coil, and an induction core pipe; the induction section pipe is a hollow straight pipe, and induction core pipes are evenly arranged along the circumference inside the pipe; left support sleeves and right support sleeves are respectively arranged at both ends of the induction core pipe, and the induction coil is wound around the outer wall of the induction section pipe; The inner ring of the left support sleeve includes a first pipe sleeve and a first support body arranged in sequence from the axis to the outside. The first pipe sleeve is a hollow pipe sleeve, and one end of the induction core pipe is installed inside the first pipe sleeve and is further fixed circumferentially by the first support body; the outer ring of the left support sleeve is a circular outer sleeve, and the first support body and the outer sleeve are fixed through evenly arranged connecting ribs; The inner ring of the right support sleeve includes a second pipe sleeve and a second support body arranged in sequence from the axis to the outside. The second pipe sleeve is a hollow pipe sleeve, and the other end of the induction core pipe is installed inside the second pipe sleeve and is further fixed circumferentially by the second support body; the outer ring of the right support sleeve is a circular outer sleeve, and the second support body and the outer sleeve are fixed through evenly arranged connecting ribs; a connecting sleeve hole for connecting with the heating air inlet pipe is also arranged on the outside of the right support sleeve; Both the left support sleeve and the right support sleeve are fixedly installed at the ends of the induction section pipe by an interference connection method; A circulation chamber outlet pipe valve is arranged on the side of the circulation chamber outlet pipe close to the circulation chamber; the air inlet pipe collects the gas coming from the circulation chamber outlet pipe, flows through a fan, and finally enters the air inlet chamber; an air inlet chamber valve is also arranged between the fan and the air inlet chamber; an air outlet chamber valve is also arranged on the side of the air outlet pipe close to the air outlet chamber; A temperature sensor is arranged at the grid net of the air inlet end of the gas turbulator, and a pressure relief valve is also arranged on the outer wall of the heating chamber.

2. The method for using the organic waste gas thermal catalytic oxidation device according to claim 1, characterized in that It includes the following steps: Step S1: Open the intake chamber valve, the circulating chamber intake valve, and the circulating chamber outlet pipe valve, and close the outlet chamber valve; start the fan. The organic waste gas enters the intake chamber through the intake pipe and the intake chamber valve, enters the preheating chamber through the through holes arranged horizontally in the heat exchanger, and further flows into the heating intake pipe and the induction heating device and then enters the heating chamber; the organic waste gas in the heating chamber successively passes through the grille and the gas turbulator, then enters the circulating chamber through the circulating chamber intake valve, and returns to the intake end of the fan through the circulating chamber outlet pipe valve and the circulating chamber outlet pipe, and then is sucked into the system by the fan again to complete the cycle; Step S2: Connect the power supply of the induction coil to heat the induction core tube. The organic waste gas passes through the induction heating device respectively from the central hole of the induction core tube and the outer space of the induction core tube and is heated, and the temperature of the organic waste gas rises; Step S3: The heated organic waste gas flows through the heating chamber. When the temperature of the organic waste gas measured by the temperature sensor reaches the temperature required for catalytic oxidation, open the outlet chamber valve, and close the circulating chamber intake valve and the circulating chamber outlet pipe valve; the organic waste gas successively passes through the intake end grille, the gas turbulator, and the outlet end grille. After the oxidation reaction is completed, the remaining gas flows into the heat exchanger along the through holes arranged horizontally; the high-temperature gas rapidly cools down after storing heat in the heat exchanger, and finally is discharged from the outlet pipe through the outlet chamber valve; After the organic waste gas enters the intake end grille, the stainless steel wire mesh layer sprayed with metal catalyst on the grille pre-treats the organic waste gas; when the pre-treated organic waste gas flows into the gas turbulator, since the through holes with corrugated structures are arranged in an array inside the gas turbulator, when the organic waste gas passes through, the inner through hole diameter changes continuously, generating turbulence, and the turbulence further strengthens the contact between the organic waste gas and the inner through hole cavity wall. Under the action of the metal catalyst on the inner cavity wall, the oxidation reaction of the waste gas is further strengthened; when the organic waste gas flows out of the gas turbulator, the residual organic waste gas is further catalytically oxidized through the outlet end grille, promoting the oxidation of the organic waste gas into water and carbon dioxide to complete the oxidation reaction.

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