Rotating wheel device for treating waste gas

Abstract

The utility model provides a rotating wheel device for treating waste gas, and relates to the technical field of waste gas treatment.The rotating wheel device comprises a shell and rotating wheels, the rotating wheels are rotatably arranged in the shell, the rotating wheels are suitable for containing adsorbents, the rotating wheels comprise the first rotating wheel and the second rotating wheel, and each of the first rotating wheel and the second rotating wheel comprises an adsorption area and a desorption area; the adsorption area is suitable for adsorbing volatile organic compounds in waste gas, and the desorption area is suitable for releasing volatile organic compounds in an adsorbent; the desorption area of the first rotating wheel is arranged on one side close to the second rotating wheel, and the desorption area of the second rotating wheel is arranged on one side close to the first rotating wheel. According to the rotating wheel device for treating the waste gas, the problem that the heat energy utilization rate of the rotating wheel device is poor can be solved.

Description

Technical Field

[0001] This application belongs to the field of waste gas treatment technology, and more specifically, relates to a rotary device for treating waste gas. Background Technology

[0002] Rotary decanter is a device commonly used for purifying volatile organic compounds (VOCs) in waste gas. It utilizes the properties of adsorbents (such as zeolite) to adsorb and remove volatile organic compounds from the waste gas.

[0003] A rotary desorption / resorption unit typically consists of a housing and a rotor housed within the housing. The rotor contains adsorbent and usually has multiple circumferentially distributed zones (such as adsorption zones and desorption zones). During operation, waste gas enters the rotor. When the volatile organic compounds (VOCs) in the waste gas come into contact with the zeolite, due to the porous structure of the zeolite, the VOC molecules are adsorbed into the zeolite molecular sieve. The zeolite rotor rotates while adsorbing. When it rotates to the desorption zone, heating causes the VOCs on the zeolite disc to desorb and concentrate. The released VOCs then enter a subsequent waste gas treatment system for further processing.

[0004] When there are a lot of volatile organic compounds, multiple rotor devices are usually required. However, in order to ensure the release of organic compounds and restore the adsorption capacity of zeolite, the operating temperature of the desorption zone is generally set relatively high (about 180℃~220℃). As a result, the heat of the desorption zones of multiple rotor devices will be exchanged with the surrounding air, resulting in poor thermal energy utilization of the entire rotor device. Utility Model Content

[0005] The purpose of this application is to provide a rotary device for treating waste gas, so as to solve the problem of poor thermal energy utilization of the rotary device.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] A rotary device for treating waste gas is provided. The rotary device includes a housing and a rotary wheel, which is rotatably disposed within the housing. The rotary wheel is adapted to hold an adsorbent. The rotary wheel includes a first rotary wheel and a second rotary wheel. Both the first rotary wheel and the second rotary wheel include an adsorption zone and a desorption zone. The adsorption zone is adapted to adsorb volatile organic compounds in the waste gas, and the desorption zone is adapted to release volatile organic compounds in the adsorbent. The desorption zone of the first rotary wheel is disposed near the second rotary wheel, and the desorption zone of the second rotary wheel is disposed near the first rotary wheel.

[0008] Through the above technical solution, the desorption zones of the first and second rotors are arranged close to each other, which is beneficial for heat utilization. For example, if desorption requires heating the adsorbent to a certain temperature, such as 200°C, the close proximity of the desorption zones of the two rotors can reduce heat loss and energy consumption to maintain the desorption temperature. This optimizes the heat management of the rotor device, improves the thermal efficiency of the rotor device, and allows for the reduction or elimination of the insulation layer on the shell, thereby improving the energy efficiency of the rotor device. At the same time, it reduces the footprint of the rotor device and facilitates its relocation and replacement.

[0009] Furthermore, it is understandable that a certain amount of heat is usually required during the desorption process to allow the adsorbent to release the adsorbed volatile organic compounds. When the desorption zone of the first rotor is close to the second rotor, some of the heat generated by the desorption in the first rotor may be transferred to the second rotor, which helps the desorption process in the second rotor's desorption zone. Similarly, the heat generated by the desorption in the second rotor may also have a positive impact on the desorption in the first rotor. Thus, by placing the desorption zones of the first and second rotors close to each other, the volatile organic compounds in the adsorbent can be released more effectively, improving the desorption efficiency.

[0010] In some embodiments, the desorption zone of the first rotor and the desorption zone of the second rotor are symmetrical about a first straight line, which is the center line of symmetry between the first rotor and the second rotor.

[0011] In some embodiments, a portion of the adsorption region of the first rotor contacts a portion of the adsorption region of the second rotor at a first symmetrical point, which is located on the midline of symmetry.

[0012] In some embodiments, a gap is formed between at least a portion of the adsorption area of ​​the first rotor and the adsorption area of ​​the second rotor, and a heat insulation element is disposed within the gap.

[0013] In some embodiments, the gap includes a first gap and a second gap that are spaced apart, the first gap and the second gap being symmetrically arranged about a first symmetry point, and both the first gap and the second gap being provided with heat insulation elements.

[0014] In some embodiments, an insulation layer is provided on the inner wall of the housing.

[0015] In some embodiments, the first and second rotors further include a cooling zone, the cooling zone, the adsorption zone, and the desorption zone being arranged circumferentially along the rotor, and the cooling zone being adapted to cool the adsorbent within the rotor.

[0016] In some embodiments, the housing is provided with an adsorption inlet and an adsorption outlet, which are arranged opposite to each other, and the adsorption zone is located on the orthogonal projection of the adsorption inlet onto the rotor; the housing is also provided with a desorption inlet and a desorption outlet, which are arranged opposite to each other, and the desorption zone is located on the orthogonal projection of the desorption inlet onto the rotor.

[0017] In some embodiments, the wheel assembly further includes a drive unit that is drively connected to the first wheel and / or the second wheel.

[0018] In some embodiments, the rotating device further includes a transmission mechanism, the drive device being drivenly connected to the first rotating wheel, and the transmission mechanism being drivenly connected between the first rotating wheel and the second rotating wheel. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the rotary device for treating waste gas provided in an embodiment of this application.

[0021] The following are the labeling elements in the figure:

[0022] 100-Rotating device; 10-Housing; 20-Rotating wheel; 21-Adsorption zone; 22-Desorption zone; 23-Cooling zone; 201-First rotating wheel; 202-Second rotating wheel; 20A-Gap; 20A1-First gap; 20A2-Second gap; 30-Transmission mechanism. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] With the rapid development of my country's economy, air pollution has become increasingly serious. Volatile organic compounds (VOCs) combine with other pollutants in the air to form secondary organic particulate matter, or secondary organic aerosols (SOA), under the irradiation of sunlight, which are secondary sources of pollution. SOA can directly enter and adhere to the upper and lower respiratory tracts and lungs, depositing in the alveoli and causing various respiratory diseases such as rhinitis and bronchitis. Long-term exposure to this environment can also induce cancer.

[0028] A rotary device is a commonly used device for purifying volatile organic compounds (VOCs) in waste gas. It utilizes the properties of adsorbents (such as zeolite) to adsorb and remove volatile organic compounds from the waste gas.

[0029] A rotary drum device typically consists of a housing and a rotor housed within the housing. The rotor contains adsorbent and usually has multiple circumferentially distributed zones (such as adsorption zones and desorption zones). During operation, waste gas enters the adsorption zone of the rotor. When the volatile organic compounds (VOCs) in the waste gas come into contact with the zeolite, due to the porous structure of the zeolite, the VOC molecules are adsorbed into the zeolite molecular sieve. The zeolite rotor rotates while adsorbing. When it rotates to the desorption zone, heating causes the VOCs on the zeolite to desorb and concentrate. The released VOCs then enter a subsequent waste gas treatment system for further treatment.

[0030] Understandably, when there are a large amount of volatile organic compounds or when multi-stage treatment is required, multiple rotary desorption units are usually needed. However, in order to ensure the release of organic compounds and restore the adsorption capacity of zeolite, the operating temperature of the desorption zone is generally set relatively high (approximately 180℃~220℃). As a result, the heat from the desorption zones of multiple rotary desorption units will be exchanged with the surrounding air, leading to poor thermal energy utilization of the entire rotary desorption unit.

[0031] Based on this, embodiments of this application provide a rotary device for treating waste gas. The rotary device 100 includes a housing 10 and a rotary wheel 20, which is rotatably disposed within the housing 10. The rotary wheel 20 is adapted to hold an adsorbent. For example, the adsorbent can be zeolite or the like, and this application does not limit its use.

[0032] The housing 10 has a receiving cavity. Optionally, a rotating shaft can be provided on the housing 10, penetrating the receiving cavity. The rotating wheel 20 is coaxially arranged with the rotating shaft and rotatably mounted on the rotating shaft, thus enabling the rotating wheel 20 to be rotatably mounted within the housing 10. Optionally, rotating shafts can be provided on opposite sides of the rotating wheel 20 along the axial direction. These rotating shafts are connected to the rotating wheel 20 and can be connected to the housing 10 via bearings, thus enabling the rotating wheel 20 to be rotatably mounted within the housing 10.

[0033] In addition, the rotor 20 also includes a first rotor 201 and a second rotor 202. Both the first rotor 201 and the second rotor 202 include an adsorption zone 21 and a desorption zone 22. The adsorption zone 21 is suitable for adsorbing volatile organic compounds in the waste gas, and the desorption zone 22 is suitable for releasing volatile organic compounds in the adsorbent.

[0034] It is understood that the adsorption zone 21 and desorption zone 22 are not fixed areas of the rotor 20. The housing 10 can be provided with an adsorption inlet and an adsorption outlet, which are positioned opposite each other. That is, the adsorption inlet and adsorption outlet are located on opposite side walls of the housing 10. Waste gas can flow through the adsorption inlet into the rotor 20. After the adsorbent in the rotor 20 adsorbs volatile organic compounds, the remaining gas is discharged from the adsorption outlet. The adsorption zone 21 is located on the orthographic projection of the adsorption inlet onto the rotor 20. The adsorption zone 21 is variable; that is, when a certain area of ​​the rotor 20 rotates to the orthographic projection of the adsorption inlet onto the rotor 20, that area becomes the adsorption zone 21.

[0035] Thus, the adsorption inlet and adsorption outlet are positioned opposite each other, and the adsorption zone 21 is located on the orthogonal projection of the adsorption inlet onto the rotor 20. Therefore, after entering through the adsorption inlet, the exhaust gas can flow directly to the adsorption zone 21 of the rotor 20. This design ensures a clear and direct path for the exhaust gas entering the rotor 20, avoiding unnecessary detours and turbulence within the housing 10, and guaranteeing that the exhaust gas can contact the adsorbent in the adsorption zone 21 with high efficiency.

[0036] Similarly, the housing 10 is also provided with a desorption inlet and a desorption outlet. The desorption inlet and the desorption outlet are arranged opposite to each other. That is, the desorption inlet and the desorption outlet are also located on opposite side walls of the housing 10. Hot air can be blown directly to the desorption zone 22 of the rotor 20 through the desorption inlet to provide the energy required for desorption of the adsorbent, so that the volatile organic compounds adsorbed on the adsorbent are desorbed and discharged from the desorption outlet.

[0037] Because the desorption inlet and desorption outlet are positioned opposite each other, and the desorption zone 22 is located on the orthogonal projection of the desorption inlet onto the rotor 20, the hot gas flow (usually hot air) used for desorption can be directly directed towards the desorption zone 22. This precisely provides the energy required for desorption of the adsorbent, enabling efficient desorption of volatile organic compounds adsorbed on the adsorbent. Compared to irregular desorption gas flows, this precise airflow guidance design avoids heat waste. The concentrated hot gas flow on the desorption zone 22 improves heat utilization efficiency, thereby reducing energy consumption during the desorption process.

[0038] In addition, the desorption zone 22 of the first rotating wheel 201 is located near the side of the second rotating wheel 202, and the desorption zone 22 of the second rotating wheel 202 is located near the side of the first rotating wheel 201, that is, the desorption zones 22 of the first rotating wheel 201 and the second rotating wheel 202 are located close to each other.

[0039] Because the desorption zones 22 of the first rotor 201 and the second rotor 202 are arranged close to each other, this layout is beneficial for heat utilization. For example, if desorption requires heating the adsorbent to a certain temperature, such as 200°C, the close proximity of the desorption zones 22 of the two rotors 20 can reduce heat loss and reduce energy consumption for maintaining the desorption temperature. In this way, the heat management of the rotor device 100 can be optimized, the thermal energy utilization efficiency of the rotor device 100 can be improved, and the insulation layer on the housing 10 can be reduced or eliminated, thereby improving the energy efficiency of the rotor device 100. At the same time, the footprint of the rotor device 100 is reduced, making it easier to move and replace the rotor device 100.

[0040] Furthermore, it is understandable that a certain amount of heat is usually required during the desorption process to allow the adsorbent to release the adsorbed volatile organic compounds. When the desorption zone 22 of the first rotor 201 is close to the second rotor 202, the heat generated by the desorption of the first rotor 201 may be partially transferred to the second rotor 202, which helps the desorption process of the desorption zone 22 of the second rotor 202. Similarly, the heat generated by the desorption of the second rotor 202 may also have a positive impact on the desorption of the first rotor 201. Thus, by setting the desorption zones 22 of the first rotor 201 and the second rotor 202 close to each other, the volatile organic compounds in the adsorbent can be released more effectively, improving the desorption effect.

[0041] In some embodiments of this application, the desorption zone 22 of the first rotating wheel 201 and the desorption zone 22 of the second rotating wheel 202 are symmetrical about a first straight line A, which is the center line of symmetry between the first rotating wheel 201 and the second rotating wheel 202.

[0042] Because the desorption zone 22 of the first rotor 201 and the desorption zone 22 of the second rotor 202 are symmetrical about the midline of symmetry, during the desorption process, regardless of whether the heat required for desorption is provided by hot air or other heating methods, the heat distribution in the two desorption zones 22 will be more even. For example, when hot air is used for desorption, the hot air entering from the desorption inlet can evenly heat the two desorption zones 22, avoiding differences in desorption effect caused by uneven heat distribution.

[0043] Furthermore, the symmetrical arrangement of the desorption zones 22 of the first rotor 201 and the second rotor 202 is beneficial for improving energy utilization efficiency. Understandably, in actual operation, no additional heat regulation device is needed to balance the temperature of the two desorption zones 22, reducing energy waste. Assuming desorption requires heating the adsorbent to a certain temperature range, such as 180℃-220℃, the symmetrical design of the desorption zones 22 ensures that both regions can stably desorb within this suitable temperature range, allowing for full utilization of heat and reducing energy consumption during the desorption process.

[0044] In some embodiments of this application, a portion of the adsorption region 21 of the first rotating wheel 201 contacts a portion of the adsorption region 21 of the second rotating wheel 202 at a first symmetry point B, which is located on the midline of symmetry.

[0045] Since the adsorption regions 21 of the first rotor 201 and the second rotor 202 are in contact at symmetrical points and located on the symmetrical midline, this symmetrical structure is beneficial to the stability of heat conduction. Due to the symmetrical structure, the heat transfer path between the adsorption regions 21 of the two rotors 20 is relatively fixed and uniform. Compared with the asymmetrical structure, there will be no situation where the local heat conduction is too fast or too slow, reducing heat loss caused by uneven heat conduction.

[0046] Furthermore, the symmetrical contact between the adsorption zones 21 of the two rotors 20 allows for more thorough and efficient heat exchange. During adsorption and desorption, the rotors 20 need to exchange heat with the exhaust gas. The symmetrical contact structure facilitates smoother heat transfer as the exhaust gas transitions between the adsorption zones 21 of the two rotors 20. This efficient heat exchange means that the rotors 20 can more fully utilize the heat in the gas flow, reducing the additional heat input required to maintain the adsorption and desorption processes, thus lowering overall heat loss.

[0047] In some embodiments of this application, a gap 20A is formed between at least a portion of the adsorption region 21 of the first rotor 201 and the adsorption region 21 of the second rotor 202, and a heat insulation element is disposed within the gap 20A.

[0048] For example, the heat insulation component can be a ceramic fiber heat insulation material, which is composed of ceramic components such as alumina and silicon dioxide. It possesses characteristics such as high temperature resistance, low thermal conductivity, good chemical stability, and insulation. Thus, this heat insulation component can withstand high-temperature environments, effectively block heat conduction, and is lightweight, thus not adding excessive load to the rotating wheel 20. Simultaneously, its flexible texture allows it to adapt well to the gaps between the rotating wheels 20, enabling it to be cut and installed according to the gap shape, resulting in a good sealing effect and effectively reducing heat loss through the gaps.

[0049] For example, the insulation component can also be glass wool insulation material. Glass wool insulation material is made primarily from glass, which is melted and fibrous, then mixed with appropriate binders. It has characteristics such as low thermal conductivity, good sound absorption, and non-combustibility. Thus, this insulation component has excellent heat insulation performance, effectively reducing heat transfer between the two rotating wheels 20 and their adsorption zones 21. Furthermore, the sound absorption properties of glass wool can reduce noise generated during the operation of the rotating wheels 20, improving the stability and comfort of the equipment operation.

[0050] In one possible structural design, the gap 20A includes a first gap 20A1 and a second gap 20A2 that are spaced apart. The first gap 20A1 and the second gap 20A2 are symmetrically arranged about a first symmetry point B, and heat insulation elements are provided in both the first gap 20A1 and the second gap 20A2.

[0051] Because the first gap 20A1 and the second gap 20A2 are symmetrically arranged about the first symmetry point B, the rotor device 100 is structurally more balanced. This ensures that heat is evenly blocked on both sides of the adsorption zone 21 of the two rotors 20, preventing excessive local heat loss. For example, when heat is generated during waste gas treatment, regardless of the direction of heat transfer, there are corresponding heat insulation components to block it, avoiding a situation where one side has good heat insulation while the other side has poor heat insulation, thus improving the overall heat insulation stability of the device.

[0052] In some embodiments of this application, the inner wall of the housing 10 is provided with a thermal insulation layer. For example, the thermal insulation layer can be a rock wool thermal insulation layer, a polystyrene foam thermal insulation layer (EPS), a polyurethane thermal insulation layer, an aluminum silicate fiber thermal insulation layer, etc. This application does not limit it.

[0053] Thus, the insulation layer on the inner wall of the shell 10 can significantly reduce heat exchange between the interior of the rotary device 100 and the external environment. Since adsorption and desorption processes occur within the shell 10, heat generation and transfer are involved. The insulation layer acts as an insulation cover, preventing heat from diffusing from the interior of the shell 10 to the external environment. This is crucial for maintaining the temperature environment within the rotary device 100, especially during adsorption processes requiring specific temperature conditions. It ensures a relatively stable temperature in the adsorption zone 21, improving the adsorption effect of the adsorbent.

[0054] In addition, in some embodiments of this application, the first rotor 201 and the second rotor 202 further include a cooling zone 23. The cooling zone 23, the adsorption zone 21 and the desorption zone 22 are arranged along the circumference of the rotor 20. Specifically, the rotor 20 can be divided into a fan-shaped adsorption zone 21, a desorption zone 22 and a cooling zone 23. The cooling zone 23 is suitable for cooling the adsorbent in the rotor 20.

[0055] Thus, the cooling zone 23 provides a cooling function to the rotary device 100. It is understood that during adsorption and desorption, the adsorbent absorbs heat, causing its temperature to rise, which may affect its adsorption performance and lifespan. The cooling zone 23 specifically cools the adsorbent, ensuring it returns to a suitable temperature range after completing the adsorption or desorption process, preparing it for the next round of adsorption or desorption.

[0056] In addition, the cooling zone 23, adsorption zone 21, and desorption zone 22 are arranged circumferentially along the rotor 20, forming a clear workflow sequence. During the rotation of the rotor 20, the adsorbent passes through the adsorption zone 21, desorption zone 22, and cooling zone 23 in sequence. This orderly partitioning ensures that the adsorbent plays different roles in different functional zones, realizing the cyclical operation of adsorption, desorption, and cooling, and improving the working efficiency of the entire rotor device 100.

[0057] In some embodiments of this application, the rotating wheel device 100 further includes a driving device, which is connected in transmission to the first rotating wheel 201 and / or the second rotating wheel 202. Exemplarily, the driving device may be a motor or the like, and this application does not limit it to this.

[0058] Thus, the drive device provides power to the rotating wheel device 100, enabling the first rotating wheel 201 and / or the second rotating wheel 202 to rotate, ensuring that the rotating wheel 20 rotates at a predetermined speed and direction, and ensuring that the adsorption zone 21, desorption zone 22 and cooling zone can sequentially and orderly process the adsorbent.

[0059] In some embodiments, the rotating device 100 provided in this application further includes a transmission mechanism 30, which is connected to the first rotating wheel 201 and the transmission mechanism 30 is connected between the first rotating wheel 201 and the second rotating wheel 202.

[0060] Thus, the transmission mechanism 30 connects the first rotating wheel 201 and the second rotating wheel 202, allowing the second rotating wheel 202 to rotate synchronously with the first rotating wheel 201 or according to a certain transmission ratio. This connection method ensures the coordinated work between the two rotating wheels 20, maintaining their relative position and motion relationship during operation, and avoiding a decrease in processing effect due to uncoordinated rotation.

[0061] Furthermore, the coordination between the drive device and the transmission mechanism 30 ensures the stable rotation of the first rotating wheel 201 and the second rotating wheel 202, avoiding problems such as uneven rotation and jamming during operation, thereby improving the overall stability of the equipment. Stable rotation helps maintain the uniform distribution and treatment of the adsorbent in each area, ensuring the stability and efficiency of the adsorption, desorption, and cooling processes.

[0062] In one possible structural design, such as Figure 1 As shown, the transmission mechanism 30 can be a synchronous belt, which is sleeved on the outer periphery of two adjacent pulleys 20 (i.e., the first pulley 201 and the second pulley 202) inside the housing 10.

[0063] Because the synchronous belt has a precise transmission ratio, it ensures that the speed ratio between two adjacent pulleys 20 (e.g., the first pulley 201 and the second pulley 202) remains constant. This, in turn, ensures the accuracy and stability of the coordinated operation of the two pulleys 20 in processes such as adsorption, desorption, and cooling.

[0064] In another possible structural design, the transmission mechanism 30 can be a gear ring fixedly disposed on the outer periphery of the rotating wheel 20, with the gear rings on the outer periphery of two adjacent rotating wheels 20 located inside the housing 10 meshing with each other.

[0065] Because the gear rings mesh with each other, a precise transmission ratio can be achieved. Therefore, when the outer circumferential gear rings of two adjacent rotors 20 mesh with each other, their speed ratio can be precisely controlled, ensuring the synchronicity and coordination of the rotors 20 in the adsorption, desorption, and cooling processes, avoiding deviations in processing effect caused by asynchronous speeds, and improving the overall processing effect and efficiency.

[0066] The above description is merely a specific embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rotary device for treating exhaust gas, characterized by comprising: The application relates to a rotary adsorption device for treating exhaust gas, comprising: a housing; a rotary wheel rotatably arranged in the housing, the rotary wheel being adapted to accommodate an adsorbent, the rotary wheel comprising a first rotary wheel and a second rotary wheel, the first rotary wheel and the second rotary wheel each comprising an adsorption zone and a desorption zone, the adsorption zone being adapted to adsorb volatile organic compounds in the exhaust gas, and the desorption zone being adapted to release the volatile organic compounds in the adsorbent; the desorption zone of the first rotary wheel is arranged close to the second rotary wheel, and the desorption zone of the second rotary wheel is arranged close to the first rotary wheel.

2. The runner device of claim 1, wherein The desorption zone of the first rotary wheel and the desorption zone of the second rotary wheel are symmetrical about a first straight line, the first straight line being a symmetry center line of the first rotary wheel and the second rotary wheel.

3. The runner device of claim 2, wherein A part of the adsorption zone of the first rotary wheel and a part of the adsorption zone of the second rotary wheel are in contact at a first symmetry point, the first symmetry point being located on the symmetry center line.

4. The runner device of claim 3, wherein A gap is formed between at least a part of the adsorption zone of the first rotary wheel and at least a part of the adsorption zone of the second rotary wheel, and a heat insulation member is arranged in the gap.

5. The runner device of claim 4, wherein The gap comprises a first gap and a second gap arranged at intervals, the first gap and the second gap being arranged symmetrically about the first symmetry point, and the heat insulation member is arranged in the first gap and the second gap.

6. The runner device of claim 1, wherein An insulation layer is arranged on the inner wall of the housing.

7. A runner device as claimed in any one of claims 1 to 6, wherein The first rotary wheel and the second rotary wheel further comprise a cooling zone, the cooling zone, the adsorption zone and the desorption zone being arranged along the circumference of the rotary wheel, and the cooling zone being adapted to cool the adsorbent in the rotary wheel.

8. A runner device as claimed in any one of claims 1 to 6, wherein An adsorption inlet and an adsorption outlet are arranged on the housing, the adsorption inlet and the adsorption outlet being oppositely arranged, and the adsorption zone being located on the orthographic projection of the adsorption inlet on the rotary wheel. A desorption inlet and a desorption outlet are further arranged on the housing, the desorption inlet and the desorption outlet being oppositely arranged, and the desorption zone being located on the orthographic projection of the desorption inlet on the rotary wheel.

9. The runner device of any one of claims 1 to 6, wherein, The rotary adsorption device further comprises a driving device, the driving device being in transmission connection with the first rotary wheel and / or the second rotary wheel.

10. The runner device of claim 9, wherein The rotary adsorption device further comprises a transmission mechanism, the driving device being in transmission connection with the first rotary wheel, and the transmission mechanism being in transmission connection between the first rotary wheel and the second rotary wheel.

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