Waste gas treatment device and vehicle

Abstract

According to the waste gas treatment device and the vehicle, a rotating part in the waste gas treatment device is rotationally arranged in a shell, the rotating part is provided with an inner cavity, an outer cavity is formed between the rotating part and the shell, and the outer cavity communicates with the inner cavity through meshes in the rotating part. The air inlet pipe is arranged on the shell and communicated with the outer cavity. The spraying assembly is arranged in the outer cavity, and a spraying opening of the spraying assembly faces the rotating part. The exhaust port is formed in the shell and communicated with the inner cavity. The catalytic reactor comprises a catalytic cavity and a catalyst filled in the catalytic cavity, and the first end of the catalytic cavity is communicated with the exhaust port. According to the method, through two-step purification, classified and efficient removal of pollution gas in waste gas is completed, efficient pollutants (particulate matter and sulfide) influencing the use efficiency of a catalyst are captured and removed in advance, the catalytic effect of the subsequent catalyst is guaranteed, the service life of the catalyst is prolonged, the catalytic purification cost is reduced, and the purification difficulty of diesel vehicle tail gas is reduced; the tail gas purification effect of the diesel vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of waste gas purification technology, and in particular to a waste gas treatment device and vehicle. Background Technology

[0002] Diesel engines are widely used due to their high thermal efficiency and fuel economy, but they also emit large amounts of pollutants such as particulate matter, nitrogen oxides, hydrocarbons and carbon monoxide. Direct emission of these pollutants not only has a significant impact on the environment, but the particulate matter also remains suspended in the atmosphere for a long time, forming smog and depositing in the human respiratory tract and lungs, which is harmful to human health.

[0003] Currently, the conventional technical approach for diesel engine purification involves first using an oxidation catalyst to remove carbon monoxide, HC, and some SOF (soluble organic matter), while simultaneously oxidizing low-valence nitrogen oxides (NO) to high-valence nitrogen oxides (NOx). After oxidation, a diesel particulate filter is used to filter the particulate matter. However, pollutants (particulate matter, sulfides) from diesel combustion significantly affect the performance of the catalyst, reducing its activity and shortening its lifespan, thus leading to reduced purification efficiency and increased purification costs. Summary of the Invention

[0004] The first embodiment of this application discloses a waste gas treatment device, including a housing, a rotating component, an inlet pipe, a spray assembly, an exhaust port, and a catalytic reactor. The rotating component is rotatably disposed within the housing and has an inner cavity. An outer cavity exists between the rotating component and the housing, and the outer cavity communicates with the inner cavity through a mesh on the rotating component. The inlet pipe is disposed on the housing and communicates with the outer cavity, and is used to transport waste gas. The spray assembly is disposed within the outer cavity, and the spray nozzles of the spray assembly face the rotating component. The exhaust port is disposed on the housing and communicates with the inner cavity. The catalytic reactor includes a catalytic chamber and a catalyst filled within the catalytic chamber, and the first end of the catalytic chamber communicates with the exhaust port.

[0005] Furthermore, at least a portion of the intake pipe is tangent to the outer surface of the housing.

[0006] Furthermore, the rotating component includes an inner cylinder, a folding cylinder, and an outer cylinder. The inner cylinder has an inner cavity and multiple inner holes. The folding cylinder is fitted onto the inner cylinder. The outer cylinder is fitted onto the folding cylinder and has an outer hole. There is an outer cavity between the outer cylinder and the outer shell.

[0007] Furthermore, the folding cylinder includes multiple perforated plates connected end to end. The connection position of two adjacent perforated plates forms a bend. One of the two adjacent bends contacts the inner cylinder, and the other of the two adjacent bends contacts the outer cylinder.

[0008] Furthermore, the rotating component also includes a wire mesh tube, which is sleeved between the outer tube and the folding tube.

[0009] Furthermore, the wire mesh tube includes multiple steel wires, which are spirally wound to form multiple wire mesh openings, and the opening areas of the multiple wire mesh openings are not exactly the same.

[0010] Furthermore, the exhaust gas treatment device also includes a liquid outlet, a liquid storage tank, and a circulation pump. The liquid outlet is located on the housing and communicates with the cavity, situated on the side of the rotating component away from the spray assembly. The liquid storage tank is connected to the liquid outlet via one end of a liquid outlet pipe, the other end of which is submerged below the liquid surface in the storage tank. The circulation pump is connected to both the liquid storage tank and the spray assembly.

[0011] Furthermore, the spray assembly, storage tank, and circulation pump form a circulation path for the purified solution. The exhaust gas treatment device also includes control valves and flow meters, which are connected in series in the circulation path.

[0012] Furthermore, the catalytic reactor includes a catalytic tube and an ultraviolet lamp assembly, with the catalytic tube forming a catalytic chamber. The ultraviolet lamp assembly is arranged around the catalytic tube.

[0013] Furthermore, the housing includes a first housing and a second housing, with the rotating component located inside the first housing. The second housing is connected to the first housing, and an exhaust port is located on the second housing.

[0014] A second embodiment of this application discloses a vehicle including any of the aforementioned exhaust gas treatment devices.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] In this application, exhaust gas enters the outer cavity through the intake pipe. The purification solution sprayed by the spray assembly drips onto the rotating component. The rotating component rotates at high speed, causing the purification solution to be fully and uniformly atomized, i.e., liquid-gas atomization, filling the interior of the housing with the purification mist. The purification mist can encounter the exhaust gas and capture particulate matter, sulfides, and some NOx in the exhaust gas, thus completing the primary purification. Pollutants that are not captured by the purification mist (such as NOx, CO, and undissolved hydrocarbons) enter the inner cavity through the mesh on the rotating component, and then enter the catalytic reactor through the inner cavity and exhaust port. The catalyst in the catalytic reactor reacts with the pollutants, thus completing the secondary purification. This application achieves efficient removal of pollutants in the exhaust gas through two-step purification, capturing and removing highly efficient pollutants (particulate matter, sulfides) that affect the catalyst's efficiency in advance, ensuring the catalytic effect of the subsequent catalyst, extending the catalyst's lifespan, reducing catalytic purification costs, reducing the difficulty of diesel vehicle exhaust purification, and improving the diesel vehicle exhaust purification effect.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments 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.

[0019] Figure 1 A schematic diagram of the structure of an exhaust gas treatment device is provided for one embodiment of this application;

[0020] Figure 2 A schematic diagram of the structure of an exhaust gas treatment device is provided for another embodiment of this application;

[0021] Figure 3 A schematic diagram of the structure of a rotating component provided in one embodiment of this application;

[0022] Figure 4 A partial schematic diagram of the inner cylinder provided for one embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the structure of a folding tube provided in one embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the structure of a wire mesh tube provided in one embodiment of this application;

[0025] Figure 7 This is a partial schematic diagram of a wire mesh tube provided for one embodiment of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Shell; 11. First shell; 12. Second shell;

[0028] 2 Rotating component; 21 Inner cavity; 22 Outer cavity; 23 Inner cylinder; 231 Inner hole; 24 Folding cylinder; 241 Perforated plate; 242 Bending part; 25 Outer cylinder; 251 Outer hole; 26 Wire mesh cylinder; 261 Steel wire; 262 Wire mesh hole; 27 Motor;

[0029] 3. Intake pipes;

[0030] 41 Spray assembly; 42 Liquid outlet; 43 Liquid storage tank; 44 Liquid outlet pipe; 45 Circulation pump; 46 Control valve; 47 Flow meter;

[0031] 5 exhaust ports;

[0032] 6. Catalytic reactor; 61. Catalytic tube; 62. Catalyst; 63. Ultraviolet lamp assembly. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0035] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0036] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0037] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0038] The first embodiment of this application discloses a waste gas treatment device, such as... Figure 1 and Figure 2As shown, the device includes a housing 1, a rotating component 2, an air inlet pipe 3, a spray assembly 41, an exhaust port 5, and a catalytic reactor 6. The rotating component 2 is rotatably disposed within the housing 1 and has an inner cavity 21. An outer cavity 22 is formed between the rotating component 2 and the housing 1, and the outer cavity 22 communicates with the inner cavity 21 through a mesh on the rotating component 2. The air inlet pipe 3 is disposed on the housing 1 and communicates with the outer cavity 22, and is used to transport exhaust gas. The spray assembly 41 is disposed within the outer cavity 22, and the spray nozzles of the spray assembly 41 are oriented towards the rotating component 2. The exhaust port 5 is disposed on the housing 1 and communicates with the inner cavity 21. The catalytic reactor 6 includes a catalytic chamber and a catalyst 62 filled within the catalytic chamber, and the first end of the catalytic chamber communicates with the exhaust port 5.

[0039] In this embodiment, the waste gas treatment device includes a housing 1, a rotating component 2, an inlet pipe 3, a spray assembly 41, an exhaust port 5, and a catalytic reactor 6. The housing 1 forms a cavity, and the rotating component 2 is located inside the housing 1 and can rotate inside the housing 1 under the drive of a driving component. The rotating component 2 has an inner cavity 21, and an outer cavity 22 is formed between the rotating component 2 and the housing 1. The rotating component 2 itself has a mesh structure, and the outer cavity 22 and the inner cavity 21 are connected through the mesh on the rotating component 2. The housing 1 is also provided with an inlet pipe 3, which is connected to the outer cavity 22, and the waste gas enters the interior of the housing 1 through the inlet pipe 3. The spray assembly 41 is located in the outer cavity 22 and can spray a purification solution. The spray nozzles on the spray assembly 41 are set facing the rotating component 2, and the purification solution can be sprayed onto the rotating component 2 through the spray nozzles. The exhaust port 5 is located on the housing 1 and is connected to the inner cavity 21. The catalytic reactor 6 contains a catalyst 62. Gas discharged through the exhaust port 5 can enter the catalytic reactor 6, react with the catalyst 62, and then be discharged. As can be imagined, the purification solution can be determined based on the type of sulfides in the waste gas, and a surfactant is added to the purification solution.

[0040] The pollutants in diesel vehicle exhaust mainly include particulate matter, NOx, CO, sulfides (SO2, H2S), and hydrocarbons. The exhaust gas enters the outer cavity 22 through the intake pipe 3. The purification solution sprayed by the spray assembly 41 drips onto the rotating part 2. The rotating part 2 rotates at high speed, which makes the purification solution fully and evenly atomized, that is, liquid-gas atomization, so that the purification mist fills the interior of the housing 1. The purification mist can meet the exhaust gas and capture particulate matter, sulfides and some NOx in the exhaust gas, thus completing the first purification. The pollutants that are not captured by the purification mist (such as purified NOx, CO and undissolved hydrocarbons) will enter the inner cavity 21 through the mesh on the rotating part 2, and then enter the catalytic reactor 6 through the inner cavity 21 and the exhaust port 5. The catalyst 62 in the catalytic reactor 6 reacts with the pollutants, thus completing the second purification. This application employs a two-step purification process to efficiently remove pollutants from exhaust gases, capturing and removing highly efficient pollutants (particulate matter and sulfides) that affect the efficiency of catalyst 62 in advance. This ensures the catalytic effect of catalyst 62, extends its service life, reduces catalytic purification costs, lowers the difficulty of diesel vehicle exhaust purification, and improves the purification effect of diesel vehicle exhaust.

[0041] It should be noted that the rotating component 2 is horizontally positioned inside the housing 1 and has a mesh structure, enabling the formation of a hypergravity purification system. Understandably, after the exhaust gas enters the housing 1, it first undergoes individual removal of pollutants such as particulate matter and sulfides that harm the performance of catalyst 62 through the hypergravity field, while also reducing the complexity of subsequent catalytic purification processes. Based on this, the catalytic reactor 6 then effectively achieves high-efficiency and deep purification of hydrocarbons, thereby improving the purification efficiency of diesel vehicle exhaust, extending the service life of catalyst 62, increasing its catalytic efficiency, and reducing application costs.

[0042] Furthermore, at least a portion of the intake pipe 3 is tangent to the outer surface of the housing 1.

[0043] In this embodiment, at least a portion of the air inlet pipe 3 is tangentially disposed to the outer surface of the housing 1. The high-speed rotation of the rotating member 2 can generate purified mist that rotates within the outer cavity 22, forming a vortex of purified mist. When exhaust gas is input through the air inlet pipe 3 tangential to the housing 1, the exhaust gas and the vortex of purified mist flow together and mix with each other, which can reduce the resistance to exhaust gas input and allow the exhaust gas to smoothly enter the interior of the housing 1.

[0044] Preferably, the central axis of the intake pipe 3 is tangent to the outer surface of the rotating component 2. During the rotation of the rotating component 2, a vortex of purified mist is formed, and the exhaust gas flows in parallel with this vortex rather than in the opposite direction.

[0045] Furthermore, such as Figure 3As shown, the rotating component 2 includes an inner cylinder 23, a folding cylinder 24, and an outer cylinder 25. The inner cylinder 23 has an inner cavity 21 and multiple inner holes 231. The folding cylinder 24 is sleeved on the inner cylinder 23. The outer cylinder 25 is sleeved on the folding cylinder 24 and has an outer hole 251. An outer cavity 22 is formed between the outer cylinder 25 and the housing 1.

[0046] In this embodiment, the rotating component 2 includes an inner cylinder 23, a folding cylinder 24, and an outer cylinder 25, which are sequentially arranged from the inside to the outside. The inner cylinder 23 has an inner cavity 21 with an open side and multiple inner holes 231. The folding cylinder 24 is fitted over the inner cylinder 23 and also has a perforated structure. The outer cylinder 25 is fitted over the folding cylinder 24 and has an outer hole 251. An outer cavity 22 is formed between the outer cylinder 25 and the housing 1. The purification solution sprayed by the spray assembly 41 falls onto the rotating component 2 in the form of droplets. When the droplets fall onto the outermost outer cylinder 25, they are atomized once by the outer cylinder 25, effectively dispersing the liquid. When the dispersed droplets encounter the folded cylinder 24 with its folded structure, they are effectively driven by the folded cylinder 24, causing the airflow to generate tangential motion, reducing gas slippage, and thus more efficiently driving the gas to generate centrifugal motion, forming a high-speed purified mist in the outer cavity 22. The surfactant in the purified mist will capture sulfides and some NOx in the exhaust gas, while the mesh structure of the outer cylinder 25, the folded cylinder 24 and the inner cylinder 23 can effectively capture and intercept particulate matter in the exhaust gas during high-speed rotation.

[0047] Preferably, such as Figure 3 and Figure 4 As shown, the inner cylinder 23 and the outer cylinder 25 are cylindrical perforated steel plates with evenly distributed prismatic holes with a side length of 10mm.

[0048] Furthermore, such as Figure 5 As shown, the folding cylinder 24 includes multiple perforated plates 241 connected end to end. The connection position of two adjacent perforated plates 241 forms a bending portion 242. One of the two adjacent bending portions 242 contacts the inner cylinder 23, and the other of the two adjacent bending portions 242 contacts the outer cylinder 25.

[0049] In this embodiment, the folding cylinder 24 includes multiple perforated plates 241, each of which has an axial length greater than its circumferential width, meaning that the perforated plate 241 is a narrow, elongated plate structure. Each perforated plate 241 includes a long side and a short side. The multiple perforated plates 241 are connected end-to-end along the circumferential direction, forming the folding cylinder 24 when closed.

[0050] Specifically, a bend 242 is formed between adjacent perforated plates 241, and the bend 242 has a V-shaped structure. The adjacent bends 242 have different orientations, one towards the inner cylinder 23 and the other towards the outer cylinder 25, forming a W-shaped structure, which can more efficiently drive the airflow to generate centrifugal motion and drive the airflow to generate tangential motion, reducing gas slippage.

[0051] Preferably, the hole structure on the folded tube 24 can be a prismatic hole.

[0052] Furthermore, such as Figure 3 , Figure 6 and Figure 7 As shown, the rotating component 2 also includes a wire mesh tube 26, which is sleeved between the outer tube 25 and the folding tube 24.

[0053] In this embodiment, from the outside to the inside, the rotating component 2 includes an outer cylinder 25, a wire mesh cylinder 26, a folded cylinder 24, and an inner cylinder 23. After the droplets are sprayed onto the outer cylinder 25 and atomized once through the outer hole 251, the droplets are effectively dispersed. Then, secondary atomization occurs in the dense wire mesh cylinder 26, further reducing the droplet diameter. Simultaneously, the wire mesh cylinder 26 can effectively filter particulate matter in the exhaust gas, allowing large-diameter particles to be intercepted and removed when passing through the rotating component 2.

[0054] Furthermore, such as Figure 7 As shown, the wire mesh tube 26 includes multiple steel wires 261, which are spirally wound to form multiple wire mesh holes 262, and the opening areas of the multiple wire mesh holes 262 are not exactly the same.

[0055] In this embodiment, the wire mesh cylinder 26 includes multiple steel wires 261, which are spirally wound together. The steel wires 261 have wire mesh holes 262 between them. The opening areas of the multiple wire mesh holes 262 are not exactly the same, thereby enabling the effective interception of particles of various sizes.

[0056] Preferably, the diameter of the steel wire 261 is 0.2 mm.

[0057] Furthermore, such as Figure 1 and Figure 2 As shown, the waste gas treatment device also includes a liquid outlet 42, a liquid storage tank 43, and a circulation pump 45. The liquid outlet 42 is located on the housing 1 and communicates with the cavity, and is situated on the side of the rotating component 2 away from the spray assembly. The liquid storage tank 43 is connected to the liquid outlet 42 through one end of a liquid outlet pipe 44, and the other end of the liquid outlet pipe 44 is located below the liquid surface in the liquid storage tank 43. The circulation pump 45 is connected to both the liquid storage tank 43 and the spray assembly 41.

[0058] In this embodiment, the waste gas treatment device also includes a liquid outlet 42, a liquid storage tank 43, and a circulation pump 45. The liquid outlet 42 is located on the housing 1. The gas mist that captures particulate matter and sulfides will gather on the inner wall of the housing 1 and flow downward under the action of gravity.

[0059] Along the direction of gravity, the spray assembly is positioned above the rotating component 2, and the outlet 42 is positioned below the rotating component 2, allowing liquid to exit the housing 1 from the outlet 42. The storage tank 43 stores a purification solution, which is formed by mixing an aqueous solution and a surfactant. An outlet pipe 44 connects the storage tank 43 and the housing 1; one end of the outlet pipe 44 is connected to the outlet 42, and the other end is submerged below the surface of the purification solution in the storage tank 43. Under the action of the circulating pump 45, the purification solution is transported from the storage tank 43 to the spray assembly 41, and then sprayed from the spray nozzle onto the rotating component 2, forming a purification mist. After reacting with some pollutants in the exhaust gas, the purification mist returns to the storage tank 43 under gravity via the outlet 42 and the outlet pipe 44.

[0060] Preferably, the housing 1 is provided with an air inlet, and the air inlet pipe 3 is connected to the outer cavity 22 through the air inlet. The air inlet is obliquely opened on the housing 1. The air inlet is located at the top of the housing 1, and the liquid outlet 42 is located directly below the air inlet.

[0061] Furthermore, such as Figure 1 and Figure 2 As shown, the spray assembly 41, the liquid storage tank 43, and the circulation pump 45 form a circulation path for the purified solution. The waste gas treatment device also includes a control valve 46 and a flow meter 47, which are connected in series in the circulation path.

[0062] In this embodiment, the spray assembly 41, the liquid storage tank 43, and the circulation pump 45 form a circulation path for the purified solution. In order to make the flow rate and on / off controllable of the purified solution, a control valve 46 and a flow meter 47 are added to the circulation path, which can dynamically adjust the flow rate of the purified solution according to the amount of waste gas entering and the rotation speed of the rotating part 2.

[0063] The position of the spray nozzles in the spray assembly 41 relative to the rotating component 2 is adjustable. Specifically, it includes:

[0064] When the rotational speed of the rotating component 2 is greater than 1000 rpm, the distance between the spray nozzle and the rotating component 2 is controlled to be 10 mm-30 mm. When the rotational speed of the rotating component 2 is less than 500 rpm, the distance between the spray nozzle and the rotating component 2 is controlled to be 30 mm-50 mm.

[0065] When the concentration of particulate matter in the exhaust gas is too high (e.g., greater than 100 mg per cubic meter), the distance between the spray nozzle and the rotating part 2 can be controlled to 5 mm-10 mm to increase the droplet density and improve the collection efficiency.

[0066] When the temperature of the exhaust gas is too high (e.g., above 150 degrees Celsius), the distance between the spray nozzle and the rotating part 2 can be controlled to 5mm-10mm to reduce the evaporation loss of droplets.

[0067] Preferably, the spray assembly 41 includes a spray pipe and spray nozzles disposed on the spray pipe. The number of spray nozzles is multiple, and the multiple spray nozzles are evenly distributed on the spray pipe along the axial direction of the rotating member 2.

[0068] Specifically, the diameter of the spray nozzle is 1mm, the spacing between adjacent spray nozzles is 18mm, and the number of spray nozzles is 7.

[0069] Furthermore, such as Figure 1 and Figure 2 As shown, the catalytic reactor 6 includes a catalytic tube 61 and an ultraviolet lamp assembly 63, with the catalytic tube 61 forming a catalytic chamber. The ultraviolet lamp assembly 63 is arranged around the catalytic tube 61.

[0070] In this embodiment, the catalytic reactor 6 includes a catalytic tube 61 and an ultraviolet lamp assembly 63. The catalytic tube 61 forms a catalytic chamber, which is connected to the exhaust port 5 and is used to receive pollutant gas from which particulate matter and sulfides have been removed. The catalytic chamber is filled with a catalyst 62. Under the irradiation of the ultraviolet lamp assembly 63, the catalyst 62 is excited to generate electron-hole pairs, thereby triggering a redox reaction that decomposes pollutants such as nitrogen oxides, hydrocarbons and carbon monoxide in the exhaust gas into harmless substances.

[0071] Hypergravity field technology refers to the enhancement of mass transfer processes and the improvement of reaction efficiency by generating accelerations far exceeding gravity. This can efficiently remove particulate matter and dissolve soluble pollutants from exhaust gases. Combining ultraviolet photocatalysis with hypergravity field technology can achieve complementary advantages, improve the purification efficiency of diesel vehicle exhaust, and thus efficiently remove pollutants such as NOx and particulate matter from diesel vehicle exhaust, while also improving the efficiency and lifespan of catalyst 62.

[0072] Furthermore, such as Figure 2 As shown, the housing 1 includes a first housing 11 and a second housing 12, with the rotating member 2 located inside the first housing 11. The second housing 12 is connected to the first housing 11, and the exhaust port 5 is located on the second housing 12.

[0073] In this embodiment, the housing 1 includes a first housing 11 and a second housing 12 connected together. The first housing 11 forms a first cavity, and the second housing 12 forms a second cavity communicating with the first cavity. A rotating member 2 is disposed inside the first housing 11, and its inner cavity 21 communicates with the second cavity. An exhaust port 5 is disposed on the second housing 12, and a liquid outlet 42 is disposed at the bottom of the first housing 11. The rotating member 2 is driven to rotate by a motor 27, which is mounted on the first housing 11 and rotates through the first housing 11 before connecting with the rotating member 2.

[0074] Specifically, after the droplets are sprayed onto the rotating part 2, the droplets are uniformly atomized by the rotating part 2 to form a purified mist. The purified mist captures particulate matter and sulfides in the exhaust gas, gathers at the bottom of the first housing 11, and flows back to the storage tank 43 through the liquid outlet 42 and the liquid outlet pipe 44.

[0075] The portion of exhaust gas that is not captured by the purified mist will pass through the rotating part 2, flow into the inner cavity 21 of the rotating part 2, and then enter the second housing 12. After being mixed evenly inside the second housing 12, it will be discharged into the catalytic chamber through the exhaust port 5. Through the action of ultraviolet light and catalyst 62, the elastic compounds in the exhaust gas are efficiently purified and finally discharged in the form of harmless gas.

[0076] In one specific embodiment, the method of using the waste gas treatment device includes:

[0077] Add a purification solution containing surfactant to the storage tank 43;

[0078] Turn on motor 27 to keep the rotating part 2 inside housing 1 rotating at high speed;

[0079] Turn on the circulation pump 45 to ensure the normal flow of the purification solution in the circulation path. The spray nozzle sprays out purification droplets, which form a purification mist under the action of the rotating part 2.

[0080] In summary, the purified aerosol generated by the rotating component 2 inside the casing 1 effectively removes particulate matter and sulfides from the exhaust gas. Surfactants increase the solubility of organic sulfides, further promoting their absorption, and also remove some nitrogen oxides. Under the influence of the hypergravity field created by the rotating component 2, the mass transfer process of particulate matter, sulfides, some nitrogen oxides, and dissolved pollutants is enhanced, resulting in efficient and rapid removal. This reduces the risk of catalyst poisoning and clogging in the subsequent catalytic oxidation process, and also lowers the concentration of pollutants in the subsequent purification process.

[0081] Preferably, the purification solution should fill at least 2 / 3 of the storage tank 43's capacity.

[0082] Preferably, the surfactant is a thiol surfactant, such as octadecyl mercaptan. The surfactant content is 1%-5%.

[0083] Preferably, the spray volume of the spray nozzle can be controlled to be 3L / min-15L / min by controlling valve 46 and flow meter 47.

[0084] Preferably, catalyst 62 is an ultraviolet photocatalyst, such as perovskite, zirconium dioxide, or titanium dioxide.

[0085] A second embodiment of this application discloses a vehicle including any of the aforementioned exhaust gas treatment devices.

[0086] The vehicle disclosed in this embodiment includes the exhaust gas treatment device provided in any of the preceding embodiments, and therefore has the beneficial effects corresponding to the exhaust gas treatment device, so it will not be described in detail again.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An exhaust gas treatment device, characterized by, The exhaust gas treatment device comprises: a housing; a rotating member rotatably arranged in the housing, the rotating member having an inner cavity, and an outer cavity between the rotating member and the housing, the outer cavity being in communication with the inner cavity through mesh holes on the rotating member; an air inlet pipe arranged on the housing and in communication with the outer cavity, the air inlet pipe being used for conveying exhaust gas; a spraying assembly arranged in the outer cavity, a spraying opening of the spraying assembly being arranged towards the rotating member; an exhaust port arranged on the housing and in communication with the inner cavity; a catalytic reactor comprising a catalytic cavity and a catalyst filled in the catalytic cavity, a first end of the catalytic cavity being in communication with the exhaust port.

2. The exhaust gas treatment device according to claim 1, wherein at least a portion of the air inlet pipe is tangent to an outer surface of the housing.

3. The exhaust treatment device of claim 1, wherein, The rotating member comprises: an inner cylinder having the inner cavity, the inner cylinder being provided with a plurality of inner holes; a folding cylinder being sleeved on the inner cylinder; an outer cylinder being sleeved on the folding cylinder, the outer cylinder being provided with outer holes, and the outer cylinder having the outer cavity between the outer cylinder and the housing.

4. The exhaust treatment device of claim 3, wherein, The folding cylinder comprises: a plurality of punched sheets, the plurality of punched sheets being connected in a head-to-tail manner, a connecting position of adjacent two punched sheets forming a bending part, one of the adjacent two bending parts being in contact with the inner cylinder, and the other of the adjacent two bending parts being in contact with the outer cylinder.

5. The exhaust treatment device of claim 3, wherein, The rotating member further comprises: a wire mesh cylinder being sleeved between the outer cylinder and the folding cylinder.

6. The exhaust treatment device of any one of claims 1-5, wherein, The exhaust gas treatment device further comprises: a liquid outlet arranged on the housing and in communication with the cavity, the liquid outlet being located on a side of the rotating member away from the spraying assembly; a liquid storage tank being in communication with the liquid outlet through one end of a liquid outlet pipe, the other end of the liquid outlet pipe being located below a liquid level of the liquid storage tank; a circulating pump being in communication with the liquid storage tank and the spraying assembly respectively.

7. The exhaust gas treatment device according to claim 6, wherein the spraying assembly, the liquid storage tank and the circulating pump constitute a circulating path of a purification solution; the exhaust gas treatment device further comprises a control valve and a flow meter, the control valve and the flow meter being connected in series in the circulating path.

8. The exhaust treatment device of any one of claims 1-5, wherein, The catalytic reactor comprises: a catalytic pipe constituting the catalytic cavity; an ultraviolet lamp assembly being arranged around the catalytic pipe.

9. The exhaust treatment device of any one of claims 1-5, wherein, The housing comprises: a first housing, the rotating member being located in the first housing; a second housing being connected with the first housing, the exhaust port being arranged on the second housing.

10. A vehicle characterized by comprising: The exhaust gas treatment device according to any one of claims 1 to 9.

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