VOC (volatile organic compound) treatment runner system

Abstract

The invention discloses a VOC (volatile organic compound) treatment rotating wheel system which is characterized in that one rotating wheel is divided into two adsorption areas, if the content of VOC in gas passing through the first adsorption area still exceeds a preset value, the gas can be further adsorbed and taken out through the second adsorption area, and the requirement can be met without two rotating wheels; the adsorption process is completed in one rotating wheel, and two desorption areas arranged in the circumferential direction can be additionally arranged at the same time, so that effective switching of desorption and adsorption of the rotating wheel can be realized, operations such as disassembly and replacement are avoided, and the VOC treatment capacity of the whole system is improved; meanwhile, the system can realize effective and multi-layer removal of VOC through one rotating wheel, the treatment efficiency is high, and the treatment process is simpler.

Description

[0001] This invention is a divisional application of a Chinese invention patent application with an application date of December 30, 2020, an application number of 2020116076078, and a title of "A VOC Treatment Rotor System and a VOC Treatment Method". Technical Field

[0002] This invention relates to the technical field of gas treatment, particularly to the treatment of volatile organic compounds (abbreviated as VOC), and specifically relates to a VOC treatment rotor system. Background Art

[0003] Volatile organic compounds (abbreviated as VOC) are widely sourced from fields such as petrochemical industry, pharmaceuticals, printing, paint decoration, and transportation. VOC is generally toxic and harmful to the environment. When the VOC concentration reaches a certain level, it will have a stimulating effect on people's respiratory tracts and seriously affect people's lives. Currently, adsorption rotors are used to adsorb VOC to purify the air. To meet the treatment requirements and ensure that the VOC content in the purified gas reaches a preset value, it is often necessary to use two rotors to treat the gas multiple times, and the treatment process is complex. Summary of the Invention

[0004] The purpose of this invention is to overcome one or more deficiencies in the prior art and provide a new type of VOC treatment rotor system that can effectively and multi-level remove VOC through one rotor, with high treatment efficiency and a simpler treatment process.

[0005] To achieve the above purpose, the technical solution adopted by this invention is:

[0006] A VOC treatment rotor system, the VOC treatment rotor system includes:

[0007] A rotor, the rotor has a first adsorption zone and a second adsorption zone that are arranged in sequence along its circumferential direction and are independent of each other;

[0008] An intake pipeline, which is connected to the inlet of the first adsorption zone;

[0009] An outlet pipeline, including an outlet main pipe, outlet branch pipes, and a first clean gas outlet pipe. The inlet of the outlet main pipe is connected to the outlet of the first adsorption zone, and the outlet of the outlet main pipe is respectively connected to the inlets of the outlet branch pipes and the first clean gas outlet pipe; the outlet of the outlet branch pipe is connected to the inlet of the second adsorption zone;

[0010] A second clean gas outlet pipe, which is connected to the outlet of the second adsorption zone.

[0011] According to some preferred aspects of the present invention, the VOC treatment runner system further includes a VOC content detection device for detecting the VOC content in the gas flowing through the outlet main pipe, and the VOC content detection device is arranged on the outlet main pipe.

[0012] According to some preferred aspects of the present invention, the runner further includes a first desorption zone arranged along its own circumference and sequentially with the second adsorption zone, and a second desorption zone located between the first desorption zone and the first adsorption zone, and the first desorption zone and the second desorption zone are arranged independently of each other.

[0013] According to some preferred aspects of the present invention, the VOC treatment runner system further includes a heater for heating the regeneration gas, and the outlet of the heater is respectively communicated with the inlet of the first desorption zone and the inlet of the second desorption zone.

[0014] According to some preferred aspects of the present invention, the VOC treatment runner system further includes:

[0015] A first circulation pipeline, the inlet of the first circulation pipeline is communicated with an outlet of the second desorption zone, and the outlet of the first circulation pipeline is communicated with the inlet pipeline;

[0016] A first concentration pipeline, the inlet of the first concentration pipeline is communicated with the outlet of the first desorption zone;

[0017] A second concentration pipeline, the outlet of the first concentration pipeline is communicated with the second concentration pipeline; the inlet of the second concentration pipeline is communicated with another outlet of the second desorption zone;

[0018] A catalytic combustion mechanism, the outlet of the second concentration pipeline is communicated with the inlet of the catalytic combustion mechanism.

[0019] According to some preferred aspects of the present invention, the VOC treatment runner system further includes:

[0020] A second circulation pipeline, the inlet of the second circulation pipeline is communicated with the outlet of the catalytic combustion mechanism, and the outlet of the second circulation pipeline is communicated with the inlet of the heater.

[0021] According to some preferred aspects of the present invention, the VOC treatment runner system further includes:

[0022] A housing, having a chamber and end caps located at both ends of the chamber. The rotating wheel is rotatably arranged on the housing and partially or entirely located within the chamber. One of the end caps has a first inlet aligned with the inlet of the first adsorption zone and a first outlet aligned with the outlet of the second adsorption zone; the other end cap has a second outlet aligned with the outlet of the first adsorption zone and a second inlet aligned with the inlet of the second adsorption zone.

[0023] According to some preferred aspects of the present invention, the second desorption zone has two outlets; one of the end caps also has a third outlet aligned with the outlet of the first desorption zone, and a fourth outlet and a fifth outlet respectively aligned with the two outlets of the second desorption zone; the other end cap also has a third inlet aligned with the inlet of the first desorption zone and a fourth inlet aligned with the inlet of the second desorption zone.

[0024] Another technical solution provided by the present invention: A VOC treatment method, which uses the above-mentioned VOC treatment rotating wheel system. The treatment method includes: enabling the waste gas containing VOC to enter the first adsorption zone through an intake pipeline, and after being adsorbed by the first adsorption zone, entering an outlet main pipe, and then entering the second adsorption zone through an outlet branch pipe or being discharged through a first clean gas outlet pipe; wherein, a VOC content detection device is used to detect the VOC content in the gas entering the outlet main pipe. If the VOC content is less than or equal to a preset value, the outlet main pipe is communicated with the first clean gas outlet pipe, and the adsorbed and treated gas is discharged through the first clean gas outlet pipe; if the VOC content is greater than the preset value, the outlet main pipe is communicated with the outlet branch pipe, and after being adsorbed by the second adsorption zone, the adsorbed and treated gas is discharged through the second clean gas outlet pipe.

[0025] According to some preferred aspects of the present invention, the treatment method further includes:

[0026] Rotating the rotating wheel to transform the first adsorption zone into a first desorption zone and the second adsorption zone into a second desorption zone;

[0027] Using a heater to heat the regeneration gas flowing through the first desorption zone and the second desorption zone to perform desorption regeneration on the first desorption zone and the second desorption zone;

[0028] Part of the air flow passing through the second desorption zone passes through a first circulation pipeline and is communicated with the intake pipeline to re-enter the first adsorption zone again;

[0029] Another part of the air flow passing through the second desorption zone enters a second concentration pipeline;

[0030] The air flow passing through the first desorption zone enters the second concentration pipeline through a first concentration pipeline;

[0031] The air flow in the second concentration pipeline is communicated with a catalytic combustion mechanism;

[0032] The catalytic combustion mechanism catalytically combusts the air flow.

[0033] In the present invention, "mutually independent" means being able to work independently without interfering with each other, but they can be connected to each other and cooperate, such as treating the VOC-containing waste gas successively.

[0034] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0035] Based on the problem that in the prior art, to ensure that the VOC content in the purified gas reaches a preset value, it often requires two rotors to treat the gas multiple times, and the treatment process is complex. The present invention innovatively provides a novel VOC treatment rotor system. This system divides the area on one rotor and specifically divides it into two adsorption zones. If the VOC content in the gas after passing through the first adsorption zone still exceeds the preset value, it can be further adsorbed and removed through the second adsorption zone. It can meet the requirements without two rotors. The adsorption process is completed in one rotor, and two desorption zones arranged circumferentially can be additionally provided at the same time, which can realize the effective switching of desorption and adsorption of the rotor, avoid operations such as disassembly and replacement, improve the VOC treatment ability of the whole system, and simplify the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. 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 according to these drawings.

[0037] Figure 1 It is a schematic structural diagram of the VOC treatment rotor system according to the embodiment of the present invention;

[0038] Figure 2 It is a schematic diagram of the circumferential arrangement of the first adsorption zone, the second adsorption zone, the first desorption zone, and the second desorption zone on the rotor according to the embodiment of the present invention;

[0039] Among them, A, the first adsorption zone; B, the second adsorption zone; C, the first desorption zone; D, the second desorption zone; E, the catalytic combustion mechanism; F, the heater;

[0040] 10, rotor; 20, intake pipe; 30, outlet pipe; 31, outlet main pipe; 32, outlet branch pipe; 33, first clean gas outlet pipe; 40, VOC content detection device; 50, second clean gas outlet pipe; 60, first circulation pipe; 70, first concentration pipe; 80, second concentration pipe; 90, second circulation pipe. Detailed Embodiments

[0041] To make the above objects, features, and advantages of the present invention more apparent and understandable, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0042] In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0046] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] As Figures 1 to 2 shown, this example provides a VOC treatment rotor system, which includes: a rotor 10, an intake pipe 20, an outlet pipe 30, and a second clean air outlet pipe 50.

[0048] Specifically, the rotating wheel 10 has a first adsorption zone A and a second adsorption zone B which are arranged in sequence along its circumferential direction and are independent of each other; the intake pipe 20 is communicated with the inlet of the first adsorption zone A; the outlet pipe 30 includes an outlet main pipe 31, outlet branch pipes 32 and a first purified gas outlet pipe 33. The inlet of the outlet main pipe 31 is communicated with the outlet of the first adsorption zone A, and the outlet of the outlet main pipe 31 is respectively communicated with the inlets of the outlet branch pipes 32 and the first purified gas outlet pipe 33; the outlet of the outlet branch pipe 32 is communicated with the inlet of the second adsorption zone B; the second purified gas outlet pipe 50 is communicated with the outlet of the second adsorption zone B.

[0049] As Figure 1 As shown, the polluted gas to be treated enters the first adsorption zone A through the intake pipe 20, and the VOC is adsorbed by the first adsorption zone A. If the VOC content of the gas treated by the first adsorption zone A reaches or is below the preset value, the gas can be directly discharged from the first purified gas outlet pipe 33. If the VOC content of the gas treated by the first adsorption zone A exceeds the preset value, the gas can enter the second adsorption zone B through the outlet branch pipe 32 for further treatment. It can be seen that the use of the second adsorption zone B can be selected according to needs. The VOC concentration at the outlet of the second adsorption zone B is lower than that at the outlet of the first adsorbent zone A.

[0050] In this example, by dividing two adsorption zones on a rotating wheel 10, if the VOC content in the gas after passing through the first adsorption zone A still exceeds the preset value, it can be further adsorbed and removed by the second adsorption zone B. The requirement can be met without two rotating wheels 10, improving the VOC treatment capacity of the whole system and enabling hierarchical removal.

[0051] In this example, the VOC treatment rotating wheel system further includes: a VOC content detection device 40 for detecting the VOC content in the gas flowing through the outlet main pipe 31, which is arranged on the outlet main pipe 31. The VOC concentration of the gas flowing out of the outlet main pipe 31 can be detected by using the VOC content detection device 40.

[0052] Furthermore, the VOC treatment rotating wheel system further includes a control module and valves. The valves are located at the inlets of the outlet branch pipe 32 and the first purified gas outlet pipe 33 and are electrically connected to the control module. The VOC content detection device 40 is also electrically connected to the control module. The VOC content detection device 40 sends the detected VOC concentration signal of the gas to the control module, and the control module controls the valves to be communicated with the outlet branch pipe 32 or the first purified gas outlet pipe 33 according to the VOC concentration signal.

[0053] In this example, the rotating wheel 10 further includes: a first desorption zone C arranged along its circumferential direction and successively with the second adsorption zone B, and a second desorption zone D located between the first desorption zone C and the first adsorption zone A, and the first desorption zone C and the second desorption zone D are arranged independently of each other. Among them, the schematic diagram of the first adsorption zone A, the second adsorption zone B, the first desorption zone C, and the second desorption zone D arranged along the circumferential direction of the rotating wheel 10 is as Figure 2 shown.

[0054] In this example, the VOC treatment rotating wheel system further includes: a heater F for heating the regeneration gas, and the outlet of the heater F is respectively communicated with the inlet of the first desorption zone C and the inlet of the second desorption zone D.

[0055] In this example, the VOC treatment rotating wheel system further includes: a first circulation pipeline 60, the inlet of the first circulation pipeline 60 is communicated with an outlet of the second desorption zone D, and the outlet of the first circulation pipeline 60 is communicated with the intake pipeline 20; a first concentration pipeline 70, the inlet of the first concentration pipeline 70 is communicated with the outlet of the first desorption zone C; a second concentration pipeline 80, the outlet of the first concentration pipeline 70 is communicated with the second concentration pipeline 80; the inlet of the second concentration pipeline 80 is communicated with another outlet of the second desorption zone D; a catalytic combustion mechanism E, the outlet of the second concentration pipeline 80 is communicated with the inlet of the catalytic combustion mechanism E.

[0056] As Figure 1 shown, part of the gas treated by the second desorption zone D enters the catalytic combustion mechanism E for catalytic combustion, burning the VOC into non-polluting gases such as carbon dioxide and water. The other part enters the intake pipeline 20 through the first circulation pipeline 60, and then enters the first adsorption zone A for circulation. It can be understood that the VOC content in the gas treated by the second desorption zone D is lower than the VOC content in the polluted gas to be treated, and the mixture of the two can reduce the treatment pressure of the first adsorption zone A and ensure the adsorption effect on VOC.

[0057] Generally, the catalytic combustion mechanism E includes a combustion device and a catalytic device, where the combustion device is used to burn the VOC, and the catalytic device includes a catalyst for further catalytic decomposition of the VOC.

[0058] The heater F heats the air flow. After the hot air flow passes through the first desorption zone C and the second desorption zone D, it can carry away the VOC on the first desorption zone C and the second desorption zone D, regenerate the first desorption zone C and the second desorption zone D, and transform them into the first adsorption zone A and the second adsorption zone B.

[0059] In this example, the VOC treatment rotating wheel system further includes: a second circulation pipeline 90, the inlet of the second circulation pipeline 90 is communicated with the outlet of the catalytic combustion mechanism E, and the outlet of the second circulation pipeline 90 is communicated with the inlet of the heater F.

[0060] AsFigure 1 As shown, the second circulation pipeline 90 can circulate part of the gas generated after catalytic combustion into the heater F. The circulated gas flowing out of the catalytic combustion mechanism E not only has the VOCs basically removed, but also has a relatively high temperature. Circulating into the first desorption zone C and the second desorption zone D can be used to regenerate the rotating wheel 10, and the waste heat in the airflow is also reused at the same time, reducing the burden on the heater F, lowering the energy consumption of the heater F, and being beneficial to energy conservation.

[0061] In this example, the VOC treatment rotating wheel system further includes: a housing having a chamber and end caps at both ends of the chamber. The rotating wheel 10 is rotatably arranged on the housing and partially or entirely located within the chamber. One of the end caps has a first inlet aligned with the inlet of the first adsorption zone A and a first outlet aligned with the outlet of the second adsorption zone B; the other end cap has a second outlet aligned with the outlet of the first adsorption zone A and a second inlet aligned with the inlet of the second adsorption zone B.

[0062] Furthermore, the second desorption zone D has two outlets; one of the end caps also has a third outlet aligned with the outlet of the first desorption zone C, and a fourth outlet and a fifth outlet respectively aligned with the two outlets of the second desorption zone D; the other end cap also has a third inlet aligned with the inlet of the first desorption zone C and a fourth inlet aligned with the inlet of the second desorption zone D.

[0063] In this example, the rotating wheel 10 is located within the housing and can rotate along its axis within the chamber of the housing. And, by rotating an appropriate angle, for example, rotating 90° or 180°, etc., the first adsorption zone A can be rotated to the position where the first desorption zone C is located. At this time, the first adsorption zone A can become the first desorption zone C.

[0064] This example also provides a VOC treatment method, which is applied to the above VOC treatment rotating wheel system, including: enabling the waste gas containing VOCs to enter the first adsorption zone A through the intake pipeline 20. After the waste gas is adsorbed by the first adsorption zone A, it enters the outlet main pipe 31, and then enters the second adsorption zone B through the outlet branch pipe 32, or is discharged through the first clean gas outlet pipe 33;

[0065] The gas entering the second adsorption zone B is discharged through the second clean gas outlet pipe 50 after being adsorbed by the second adsorption zone B.

[0066] The VOC treatment method of this example has the following beneficial effects. By dividing two adsorption zones on one rotating wheel 10, if the VOC content in the gas after passing through the first adsorption zone A still exceeds the preset value, it can be further adsorbed and removed through the second adsorption zone B, and the need for two rotating wheels 10 can be met, improving the VOC treatment capacity of the entire system.

[0067] In this example, the waste gas containing VOC enters the first adsorption zone A through the intake pipeline 20. After being adsorbed in the first adsorption zone A, the waste gas enters the main outlet pipeline 31, and then enters the second adsorption zone B through the outlet branch pipe 32, or is discharged through the first clean gas outlet pipe 33.

[0068] It also includes: using the VOC content detection device 40 to detect the VOC concentration of the gas flowing out of the main outlet pipeline 31. If the VOC concentration is less than or equal to the preset value, connect the main outlet pipeline 31 with the first clean gas outlet pipe 33, and the adsorbed gas is discharged through the first clean gas outlet pipe 33; if the VOC concentration is greater than the preset value, connect the main outlet pipeline 31 with the outlet branch pipe 32. After being adsorbed in the second adsorption zone B, the adsorbed gas is discharged through the second clean gas outlet pipe 50.

[0069] In this example, the VOC treatment method also includes:

[0070] Rotate the rotating wheel 10, the first adsorption zone A is transformed into the first desorption zone C, and the second adsorption zone B is transformed into the second desorption zone D;

[0071] Use the heater F to heat the air flow passing through the first desorption zone C and the second desorption zone D to perform desorption regeneration on the first desorption zone C and the second desorption zone D;

[0072] Part of the air flow passing through the second desorption zone D passes through the first circulation pipeline 60 and is connected to the intake pipeline 20 to be recycled and enter the first adsorption zone A again;

[0073] Another part of the air flow passing through the second adsorption zone B enters the second concentration pipeline 80;

[0074] The air flow passing through the first desorption zone C enters the second concentration pipeline 80 through the first concentration pipeline 70;

[0075] The air flow in the second concentration pipeline 80 is connected to the catalytic combustion mechanism E;

[0076] The catalytic combustion mechanism E catalytically combusts the air flow.

[0077] In this example, the VOC content in the gas treated by the second desorption zone D is lower than the VOC content in the waste gas to be treated. After being recycled through the first circulation pipeline 60, the two are mixed to reduce the treatment pressure of the first adsorption zone A and ensure the adsorption effect on VOC.

[0078] In this example, after the catalytic combustion mechanism E catalytically combusts the air flow, it also includes:

[0079] The air flow flowing out of the catalytic combustion mechanism E enters the heater F through the second circulation pipeline 90.

[0080] Such as Figure 1As shown, the second circulation pipeline 90 can circulate part of the gas generated after catalytic combustion into the heater F. The circulated gas flowing out of the catalytic combustion mechanism E not only has the VOCs basically removed, but also has a relatively high temperature. Circulating into the first desorption zone C and the second desorption zone D can be used to regenerate the rotating wheel 10, and the waste heat in the air flow is also reused simultaneously, reducing the burden on the heater F, lowering the energy consumption of the heater F, and being beneficial to energy conservation.

[0081] Other operations of the VOC treatment rotating wheel system and the VOC treatment method according to this example are understandable and easy to implement for those skilled in the art, and thus will not be described in detail.

[0082] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable those familiar with this technology to understand the content of the present invention and implement it accordingly. It should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A VOC treatment rotary wheel system, characterized in that, The VOC treatment rotor system includes: A rotor having a first adsorption zone and a second adsorption zone which are arranged in sequence along its circumferential direction and are independent of each other; An intake pipe communicating with the inlet of the first adsorption zone; An outlet pipe including an outlet main pipe, outlet branch pipes, and a first clean gas outlet pipe. The inlet of the outlet main pipe communicates with the outlet of the first adsorption zone, and the outlet of the outlet main pipe communicates with the inlets of the outlet branch pipes and the first clean gas outlet pipe respectively; the outlet of the outlet branch pipe communicates with the inlet of the second adsorption zone; A second clean gas outlet pipe communicating with the outlet of the second adsorption zone; A VOC content detection device provided on the outlet main pipe and used to detect the VOC content in the gas flowing through the outlet main pipe; A valve located at the inlets of the outlet branch pipe and the first clean gas outlet pipe, and the valve can communicate with the outlet branch pipe or the first clean gas outlet pipe.

2. The VOC treatment runner system according to claim 1, wherein During the treatment process of the VOC treatment rotor system, the polluted gas to be treated enters the first adsorption zone through the intake pipe, and the first adsorption zone adsorbs VOC; if the VOC content of the gas treated by the first adsorption zone reaches or is below a preset value, the gas is discharged from the first clean gas outlet pipe; if the VOC content of the gas treated by the first adsorption zone exceeds the preset value, the gas enters the second adsorption zone through the outlet branch pipe for further treatment.

3. The VOC treatment rotary wheel system according to claim 2, characterized in that, During the treatment process of the VOC treatment rotor system, the VOC content detection device is used to detect the VOC content in the gas entering the outlet main pipe. If the VOC content is less than or equal to the preset value, the valve is controlled to connect the outlet main pipe with the first clean gas outlet pipe, and the adsorbed and treated gas is discharged from the first clean gas outlet pipe; If the VOC content is greater than the preset value, the valve is controlled to connect the outlet main pipe with the outlet branch pipe. After being adsorbed by the second adsorption zone, the adsorbed and treated gas is discharged from the second clean gas outlet pipe.

4. The VOC treatment rotary wheel system according to any one of claims 1 to 3, characterized in that, The VOC treatment rotor system further includes a control module which is electrically connected to the valve and the VOC content detection device respectively, and is electrically connected to the control module. The control module is used to control the valve to communicate with the outlet branch pipe or the first clean gas outlet pipe according to the VOC concentration signal of the gas detected by the VOC content detection device.

5. The VOC treatment runner system according to claim 1, characterized in that, The rotor further includes a first desorption zone arranged along its circumferential direction and in sequence with the second adsorption zone, and a second desorption zone located between the first desorption zone and the first adsorption zone, and the first desorption zone and the second desorption zone are independently arranged; Further, the VOC treatment rotor system further includes: A heater for heating the regeneration gas, and the outlet of the heater communicates with the inlets of the first desorption zone and the second desorption zone respectively; A first circulation pipe, the inlet of the first circulation pipe communicates with an outlet of the second desorption zone, and the outlet of the first circulation pipe communicates with the intake pipe; The first concentration pipeline, the inlet of the first concentration pipeline is communicated with the outlet of the first desorption zone; The second concentration pipeline, the outlet of the first concentration pipeline is communicated with the second concentration pipeline; the inlet of the second concentration pipeline is communicated with the other outlet of the second desorption zone; The catalytic combustion mechanism, the outlet of the second concentration pipeline is communicated with the inlet of the catalytic combustion mechanism; The second circulation pipeline, the inlet of the second circulation pipeline is communicated with the outlet of the catalytic combustion mechanism, and the outlet of the second circulation pipeline is communicated with the inlet of the heater.

6. The VOC treatment rotary wheel system according to claim 5, characterized in that, During the treatment process of the VOC treatment runner system, part of the gas treated by the second desorption zone enters the catalytic combustion mechanism for catalytic combustion; the other part enters the intake pipeline through the first circulation pipeline and then enters the first adsorption zone for circulation; and / or, the catalytic combustion mechanism includes a combustion device for burning VOC and a catalytic device for catalytically decomposing VOC.

7. The VOC treatment rotary wheel system according to claim 5, wherein During the treatment process of the VOC treatment runner system, the heater heats the air flow, and after the hot air flow passes through the first desorption zone and the second desorption zone, it takes away the VOC on the first desorption zone and the second desorption zone, regenerates the first desorption zone and the second desorption zone, and transforms them into a new first adsorption zone and second adsorption zone; and / or, during the treatment process of the VOC treatment runner system, the second circulation pipeline can circulate part of the gas generated after catalytic combustion into the heater and then circulate into the first desorption zone and the second desorption zone for regenerating the runner.

8. The VOC treatment rotary wheel system according to claim 5, characterized in that, The method for treating VOC using the VOC treatment runner system includes: Rotating the runner, the first adsorption zone is transformed into the first desorption zone, and the second adsorption zone is transformed into the second desorption zone; Using the heater to heat the air flow passing through the first desorption zone and the second desorption zone to desorb and regenerate the first desorption zone and the second desorption zone; Part of the air flow passing through the second desorption zone enters the first circulation pipeline and is communicated with the intake pipeline to circulate into the first adsorption zone again; Another part of the air flow passing through the second adsorption zone enters the second concentration pipeline; The air flow passing through the first desorption zone enters the second concentration pipeline through the first concentration pipeline; The air flow in the second concentration pipeline is communicated with the catalytic combustion mechanism; The catalytic combustion mechanism catalytically combusts the air flow, and the air flow flowing out of the catalytic combustion mechanism enters the heater through the second circulation pipeline.

9. The VOC treatment rotary wheel system according to claim 1, characterized in that, The VOC treatment runner system further includes: The housing, having a chamber and end caps at both ends of the chamber, the runner is rotatably arranged on the housing and partially or entirely located in the chamber, one of the end caps has a first inlet aligned with the inlet of the first adsorption zone and a first outlet aligned with the outlet of the second adsorption zone; the other end cap has a second outlet aligned with the outlet of the first adsorption zone and a second inlet aligned with the inlet of the second adsorption zone; Further, the second desorption zone has two outlets; one of the end caps further has a third outlet aligned with the outlet of the first desorption zone, and a fourth outlet and a fifth outlet respectively aligned with the two outlets of the second desorption zone; the other end cap further has a third inlet aligned with the inlet of the first desorption zone and a fourth inlet aligned with the inlet of the second desorption zone.

10. The VOC treatment rotating wheel system according to claim 9, characterized in that, The rotating wheel is located within the housing and rotates along its axis within the chamber of the housing. When it rotates 180°, the first adsorption zone is rotated to the position where the first desorption zone is located, and through desorption, the first adsorption zone can be changed into the first desorption zone.

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