Tail water mist treatment device, control method of tail water mist treatment device and vehicle

Abstract

The invention discloses a tail water mist treatment device, a control method of the tail water mist treatment device and a vehicle, and the tail water mist treatment device comprises a gas-liquid separator which is suitable for being communicated with a fuel cell system; and the drying assembly comprises a first drying box and a second drying box, and the first drying box and the second drying box are connected in parallel and communicate with the gas-liquid separator. The gas-liquid separator is arranged and is communicated with the fuel cell system, so that tail drainage water can be subjected to split-flow treatment, liquid water can be subjected to centralized treatment during parking, the tail drainage water can be prevented from being sprayed on a road surface, and the road surface can be prevented from being frozen when the environment temperature is relatively low; the vaporous water can be introduced into one or two of the first drying box and the second drying box, at the moment, the drying assembly can absorb the vaporous water, and therefore the situation that a large amount of water mist diffuses in the air, shields the sight of a driver of a vehicle beside and threatens the safety of people is avoided, and the safety and reliability of the vehicle can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a tail water mist treatment device, a control method for the tail water mist treatment device, and a vehicle. Background Art

[0002] In the related technology, the vehicle's tail gas mist treatment device includes a hydrogen-water vapor mixing pipeline and an air-water vapor mixing pipeline leading out from the fuel cell stack's tail gas outlet, and a mixing device for collectively discharging the water and gas in the hydrogen-water vapor mixing pipeline and the air-water vapor mixing pipeline. A first gas-liquid separator is provided on the hydrogen-water vapor mixing pipeline and then connected to the mixing device and the fuel cell hydrogen supply system. A second gas-liquid separator is provided on the air-water vapor mixing pipeline and then connected to the mixing device, thereby realizing gas-liquid separation treatment of the tail gas from the hydrogen supply system and the oxygen supply system. A mixing device is added to the tail gas treatment system, integrating a drainage box and an exhaust box, and storing and treating the desiccant and water in separate boxes in the mixing device, making the layout structure more compact. At the same time, after gas-liquid separation, part of the hydrogen can be returned to the fuel cell hydrogen supply system for recycling and reuse.

[0003] However, existing vehicle tailwater mist treatment devices also have significant defects: when the ambient temperature drops below 0°C, the vehicle tailwater will cause road icing, and when the fuel cell is operating in the high-power range, it will generate a large amount of water vapor, blocking the view of people driving nearby vehicles, posing a huge safety hazard. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a vehicle tail water mist treatment device, which can divert the tail water of the vehicle and improve the safety and reliability of the vehicle.

[0005] The present invention further proposes a control method for a tail water mist treatment device.

[0006] The present invention further provides a vehicle.

[0007] According to the vehicle's tail water mist treatment device of the present invention, it includes: a gas-liquid separator, which is suitable for being connected to a fuel cell system; a drying component, which includes: a first drying box and a second drying box, the first drying box and the second drying box are connected in parallel, and the first drying box and the second drying box are respectively connected to the gas-liquid separator, and gaseous water is introduced into the first drying box and / or the second drying box.

[0008] According to the tail water mist treatment device of the vehicle of the present invention, a gas-liquid separator is provided, and the gas-liquid separator is connected to the fuel cell system, so that the tail water can be diverted for treatment, and the liquid water can be centrally treated when the vehicle is parked, at which time the tail water can be prevented from spilling on the road surface. When the ambient temperature is low and the road surface freezes, the gaseous water can be passed into one or both of the first drying box and the second drying box. At this time, the drying component can absorb the gaseous water, thereby preventing a large amount of water mist from spreading in the air, blocking the sight of the driver of the vehicle next to it, and posing a threat to human safety. In this way, the safety and reliability of the vehicle can be improved.

[0009] In some examples of the present invention, the drying component further includes: a desiccant, the desiccant is used to absorb gaseous water, and the desiccant is disposed in the first drying box and the second drying box.

[0010] In some examples of the present invention, the desiccant is a silica gel desiccant.

[0011] In some examples of the present invention, the drying component further includes: a drying member, which is disposed in the first drying box and the second drying box, and is used to dry the desiccant.

[0012] In some examples of the present invention, the vehicle's tail water mist treatment device also includes: a three-way valve, the three-way valve is provided with a first interface, a second interface and a third interface, the first interface is connected to the gas-liquid separator, the second interface is connected to the first drying box, and the third interface is connected to the second drying box.

[0013] In some examples of the present invention, the vehicle's tail water mist treatment device also includes: a water tank and a control valve, the water tank is connected to the gas-liquid separator, liquid water flows into the water tank, a drain outlet is provided at the bottom of the water tank, and the control valve selectively opens the drain outlet.

[0014] In some examples of the present invention, the vehicle's tail water mist treatment device also includes: a liquid level sensor and a controller, the liquid level sensor is arranged in the water tank, the liquid level sensor is used to detect the liquid level height in the water tank, and the control valve and the liquid level sensor are electrically connected to the controller respectively.

[0015] According to the present invention, a control method for a vehicle tail water mist treatment device includes: obtaining usage information of the first drying box and the second drying box; if the first drying box and the second drying box are not used for the first time, obtaining whether gaseous water enters the first drying box and the second drying box; if gaseous water enters one of the first drying box and the second drying box, the other of the first drying box and the second drying box and the first drying box operate alternately in sequence according to a first predetermined time length.

[0016] In some examples of the present invention, after the step of obtaining usage information of the first drying box and the second drying box, the method further includes: if the first drying box and the second drying box are used for the first time, the first drying box and the second drying box operate in sequence according to the second predetermined time period.

[0017] The vehicle according to the present invention includes: the vehicle tail water mist processing device described above.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which: Figure 1 2 is a schematic structural diagram of a vehicle tail water mist treatment device according to an embodiment of the present invention; Figure 2 is a block diagram of a method for controlling a vehicle tail water mist treatment device according to another embodiment of the present invention.

[0020] Reference numerals: 1. Tail water mist treatment device; 10. Gas-liquid separator; 20. Fuel cell system; 30. Drying assembly; 300. First drying box; 301. Second drying box; 40. Three-way valve; 400. First interface; 401. Second interface; 402. Third interface; 50. Muffler; 60. Water tank; 600. Drain; 70. Liquid level sensor. DETAILED DESCRIPTION

[0021] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0022] Reference below Figure 1 and Figure 2 A vehicle tail water mist treatment device 1 according to an embodiment of the present invention will be described.

[0023] like Figure 1 As shown, a vehicle tailwater mist treatment device 1 according to an embodiment of the present invention includes a gas-liquid separator 10 and a drying assembly 30. The gas-liquid separator 10 is primarily used to separate gas from liquid, thereby separating gaseous water from liquid water in tailwater. The drying assembly 30 is primarily used to dry and absorb the gaseous water.

[0024] like Figure 1As shown, the gas-liquid separator 10 is suitable for communicating with the fuel cell system 20, and the drying component 30 includes: a first drying box 300 and a second drying box 301, the first drying box 300 and the second drying box 301 are connected in parallel, and the first drying box 300 and the second drying box 301 are respectively communicated with the gas-liquid separator 10. The gas-liquid separator 10 is connected to the fuel cell system 20, so that the products produced by the reaction of hydrogen and oxygen in the fuel cell system 20 can enter the gas-liquid separator 10 for water-gas separation. The liquid water can be centrally processed when the vehicle is parked. At this time, the tail water can be prevented from being spilled on the road surface. When the ambient temperature is low, the road surface will freeze. The first drying box 300 and the second drying box 301 are components of the drying component 30, both of which can play a drying and drying role and can be used to absorb gaseous water. The first drying box 300 and the second drying box 301 are connected in parallel, and the first drying box 300 and the second drying box 301 are respectively connected to the gas-liquid separator 10, so that the first drying box 300 and the second drying box 301 do not affect each other and can work independently, which can improve the processing capacity and flexibility of the drying component 30.

[0025] The gaseous water is introduced into the first drying box 300 and / or the second drying box 301. The gaseous water can be introduced into one or both of the first drying box 300 and the second drying box 301. Specifically, when the gaseous water produced by the reaction of hydrogen and oxygen in the fuel cell system 20 is small, the gaseous water can be selectively introduced into either the first drying box 300 or the second drying box 301. In this case, the first drying box 300 or the second drying box 301 can absorb all the gaseous water. When the gaseous water produced by the reaction of hydrogen and oxygen in the fuel cell system 20 is sufficient, the gaseous water can be introduced into both the first drying box 300 and the second drying box 301. In this case, both the first drying box 300 and the second drying box 301 can absorb the gaseous water. This prevents a large amount of water mist from spreading in the air, obstructing the vision of nearby vehicle drivers and posing a threat to their safety. This can improve the safety and reliability of the vehicle.

[0026] Therefore, a gas-liquid separator 10 is provided, and the gas-liquid separator 10 is connected to the fuel cell system 20, so that the tail water can be diverted for processing, and the liquid water can be centrally processed when the vehicle is parked, thereby preventing the tail water from spilling on the road surface. When the road surface freezes at a low ambient temperature, the gaseous water can be introduced into one or both of the first drying box 300 and the second drying box 301. At this time, the drying component 30 can absorb the gaseous water, thereby preventing a large amount of water mist from spreading in the air, blocking the sight of the driver of the vehicle next to it, and posing a threat to human safety. This can improve the safety and reliability of the vehicle.

[0027] Specifically, the drying assembly 30 further includes a desiccant for absorbing vaporous water. The desiccant is disposed in the first drying box 300 and the second drying box 301. The desiccant is a component of the drying assembly 30 and is used to absorb vaporous water. The desiccant can be used to absorb or adsorb moisture, thereby reducing humidity. The desiccant is disposed in the first drying box 300 and the second drying box 301. Both the first drying box 300 and the second drying box 301 contain desiccant. In this case, both the first drying box 300 and the second drying box 301 can perform drying and moisture absorption functions, specifically absorbing vaporous water. When vaporous water is selectively introduced into one or both of the first drying box 300 and the second drying box 301, the first drying box 300 and the second drying box 301 can absorb the vaporous water, thereby preventing a large amount of water mist from permeating the air, obstructing the view of nearby vehicle drivers and posing a threat to their safety. This improves the safety and reliability of the vehicle.

[0028] The desiccant is a silica gel desiccant. Silica gel desiccant has advantages such as high hygroscopicity, chemical stability, and renewability. Setting the desiccant as a silica gel desiccant allows for selective introduction of gaseous water into one or both of the first drying box 300 and the second drying box 301. The first drying box 300 and the second drying box 301 can absorb the gaseous water, thereby preventing a large amount of water mist from filling the air, obstructing the view of drivers of nearby vehicles and posing a threat to human safety. This can improve the safety and reliability of the vehicle. Furthermore, the silica gel desiccant can be reused, which is beneficial for reducing costs and improving drying performance. Furthermore, by placing the silica gel desiccant in the first drying box 300 and the second drying box 301, the silica gel desiccant can be regenerated and alternately used and restored, extending the service life of the silica gel desiccant while more effectively absorbing gaseous water, thereby preventing a large amount of water mist from filling the air.

[0029] Optionally, the drying assembly 30 further includes a drying element, which is disposed in the first drying box 300 and the second drying box 301 and is used to dry the desiccant. The drying element mainly serves to dry the desiccant. The drying element is disposed in the first drying box 300 and the second drying box 301 and is used to dry the desiccant. The first drying box 300 and the second drying box 301 are both provided with the drying element, and the drying element can dry the desiccant. In this case, the first drying box 300 and the second drying box 301 can both serve to dry and absorb gaseous water. When the gaseous water is selectively introduced into one or both of the first drying box 300 and the second drying box 301, the first drying box 300 and the second drying box 301 can absorb the gaseous water, thereby preventing a large amount of water mist from filling the air, obstructing the view of the driver of the adjacent vehicle, and posing a threat to human safety. This can improve the safety and reliability of the vehicle. It should be noted that if the first drying box 300 and the second drying box 301 are used for the first time, the first drying box 300 is turned off and the second drying box 301 is turned on after the first drying box 300 has been running for two hours. If the first drying box 300 and the second drying box 301 are not used for the first time, when gaseous water enters one of the first drying box 300 or the second drying box 301, for example, gaseous water enters the first drying box 300, the drying component in the first drying box 300 is temporarily not working, that is, the drying function of the first drying box 300 is temporarily not turned on, and the drying component in the second drying box 301 starts working, that is, the drying function of the second drying box 301 is turned on for 30 minutes. The drying box into which gaseous water enters is replaced every two hours, thereby effectively reducing the safety issues of road icing and obstruction of the vision of nearby vehicle drivers caused by liquid water and gaseous water.

[0030] In addition, if Figure 1As shown, the vehicle's tail water mist treatment device 1 also includes: a three-way valve 40, the three-way valve 40 is provided with a first interface 400, a second interface 401 and a third interface 402, the first interface 400 is connected to the gas-liquid separator 10, the second interface 401 is connected to the first drying box 300, and the third interface 402 is connected to the second drying box 301. The three-way valve 40 may include two outlets and one inlet or two inlets and one outlet, and may control the flow direction of the fluid in the pipeline system. The three-way valve 40 is provided with a first interface 400, a second interface 401 and a third interface 402, wherein the first interface 400 may be set as an inlet, the second interface 401 and the third interface 402 may be set as outlets, the first interface 400 is connected to the gas-liquid separator 10, the second interface 401 is connected to the first drying box 300, and the third interface 402 is connected to the second drying box 301. At this time, the three-way valve 40 may realize the connection between the gas-liquid separator 10 and the first drying box 300 and the second drying box 301 respectively, so that the first drying box 300 and the second drying box 301 may be used to absorb the gaseous water in the gas-liquid separator 10, thereby preventing a large amount of water mist from spreading in the air.

[0031] Of course, if Figure 1 As shown, the vehicle tail water mist treatment device 1 further includes a muffler 50, which is disposed between the gas-liquid separator 10 and the three-way valve 40. The muffler 50 can reduce noise. The muffler 50 is disposed between the gas-liquid separator 10 and the three-way valve 40. At this time, the muffler 50 can reduce the noise generated by the gaseous water flowing from the gas-liquid separator 10 to the three-way valve 40. This helps to reduce the overall noise level of the vehicle tail water mist treatment device 1, thereby improving the comfort of the operating environment and the operational stability of the equipment.

[0032] Furthermore, if Figure 1 As shown, the vehicle tail water mist treatment device 1 further includes a water tank 60, which is in communication with the gas-liquid separator 10 and into which liquid water flows. The water tank 60 is primarily used to store liquid water. The water tank 60 is in communication with the gas-liquid separator 10, into which liquid water flows. The water tank 60 is in communication with the gas-liquid separator 10, so that liquid water flowing out of the gas-liquid separator 10 can be stored in the water tank 60, thereby preventing tail water from spilling onto the road surface and causing road icing when the ambient temperature is relatively low.

[0033] In addition, Figure 1As shown, the vehicle tail water mist treatment device 1 also includes a control valve. A drain port 600 is provided at the bottom of the water tank 60. The control valve selectively opens the drain port 600. The control valve can be used to adjust the flow rate, pressure, and direction of the fluid. The drain port 600 is provided at the bottom of the water tank 60. The control valve selectively opens the drain port 600. The drain port 600 can discharge the liquid water in the water tank 60. After receiving a signal, the control valve can accurately adjust the valve opening to open and close the drain port 600. When the water volume in the water tank 60 is sufficient, the control valve opens the drain port 600, allowing the liquid water in the water tank 60 to flow out, which is conducive to achieving precise control of the water volume in the water tank 60.

[0034] It should be noted that if Figure 1 As shown, the vehicle tail water mist treatment device 1 further includes: a liquid level sensor 70, which is provided in the water tank 60 and is used to detect the liquid level height in the water tank 60. The liquid level sensor 70 can be used to measure the height or volume of the liquid, and can monitor the liquid level in a tank, container or other storage device in real time, and convert the liquid level information into an electrical signal, thereby ensuring the safe operation of the system and optimizing the operating efficiency. The liquid level sensor 70 is provided in the water tank 60 and is used to detect the liquid level height in the water tank 60. The liquid level sensor 70 is installed on the water tank 60 so that the liquid level sensor 70 can detect the liquid height inside the water tank 60. When the liquid water in the water tank 60 exceeds the limit, the liquid level sensor 70 can alarm and remind.

[0035] In addition, the vehicle tail water mist treatment device 1 further includes a controller, a control valve, and a liquid level sensor 70, each electrically connected to the controller. The controller receives feedback signals from the liquid level sensor 70, compares them with a preset target value, calculates a control signal based on the deviation, and sends it to the control valve to adjust the valve opening. The control valve and liquid level sensor 70 are each electrically connected to the controller, forming a closed-loop control system that automatically adjusts the liquid level. The adjustment process is as follows: the liquid level sensor 70 detects the water level in the water tank 60 in real time, converts the liquid level data into an electrical signal, and transmits it to the controller. The controller receives feedback signals from the liquid level sensor 70 and compares them with a preset target liquid level value. The controller then sends a control signal to the control valve to adjust the valve opening, thereby selectively opening the drain outlet 600. The system repeats these steps, continuously monitoring and adjusting the liquid water level until the set value is reached and a stable state is maintained. During this process, the controller can dynamically adjust control parameters based on actual conditions to optimize the system's response speed and stability. That is to say, when there is too much liquid water inside the water tank 60, the liquid level sensor 70 will alarm. At this time, if the vehicle is driving, the drain port 600 on the water tank 60 should be opened appropriately to drain the liquid water. The discharge time can be 2 minutes. Otherwise, the liquid water in the water tank 60 can be discharged in a centralized manner when the vehicle is parked.

[0036] like Figure 2As shown, the control method of the tail water mist treatment device 1 of a vehicle according to an embodiment of the present invention includes: obtaining usage information of the first drying box 300 and the second drying box 301; if the first drying box 300 and the second drying box 301 are not used for the first time, obtaining whether gaseous water enters the first drying box 300 and the second drying box 301; if gaseous water enters one of the first drying box 300 and the second drying box 301, the other one of the first drying box 300 and the second drying box 301 operates alternately in sequence according to a first predetermined time length. It should be noted that the previous usage of the first drying box 300 and the second drying box 301 must first be obtained. If the first drying box 300 and the second drying box 301 have been used before, it is necessary to determine whether gaseous water has entered the first drying box 300 or the second drying box 301. If gaseous water has entered one of the first drying box 300 and the second drying box 301, the other of the first drying box 300 and the second drying box 301 will alternately operate for a first predetermined duration. Specifically, if gaseous water has entered the first drying box 300, the drying component of the first drying box 300 will temporarily stop operating, i.e., the drying function of the first drying box 300 will not be activated, while the drying component of the second drying box 301 will start operating, i.e., the drying function of the second drying box 301 will be activated for 30 minutes. The drying box into which gaseous water has entered is replaced every two hours. This can prevent a large amount of water mist from filling the air, obstructing the vision of nearby vehicle drivers and posing a threat to their safety, thereby improving the safety and reliability of the vehicle.

[0037] Specifically, if Figure 2 As shown, after the step of obtaining the usage information of the first drying box 300 and the second drying box 301, the method further includes: if the first drying box 300 and the second drying box 301 are used for the first time, the first drying box 300 and the second drying box 301 are operated sequentially for a second predetermined time period. If it is determined that the first drying box 300 and the second drying box 301 have not been used before, the first drying box 300 and the second drying box 301 are operated sequentially for the second predetermined time period. Specifically, if the first drying box 300 and the second drying box 301 are used for the first time, after the first drying box 300 has been operated for two hours, the first drying box 300 is turned off and then the second drying box 301 is turned on. This can prevent a large amount of water mist from filling the air, obstructing the vision of nearby vehicle drivers and posing a threat to their safety, thereby improving the safety and reliability of the vehicle.

[0038] The vehicle according to the embodiment of the present invention includes: the vehicle tail water mist treatment device 1 described in the above embodiment.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. In the description of the present invention, a first feature being "above", "above" and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature.

[0041] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A vehicle tail water mist treatment device (1), characterized in that: include: A gas-liquid separator (10), the gas-liquid separator (10) being adapted to communicate with a fuel cell system (20); A drying component (30), the drying component (30) comprising: a first drying box (300) and a second drying box (301), the first drying box (300) and the second drying box (301) being connected in parallel, and the first drying box (300) and the second drying box (301) being respectively connected to the gas-liquid separator (10), and gaseous water being introduced into the first drying box (300) and / or the second drying box (301).

2. The vehicle tail water mist treatment device (1) according to claim 1, characterized in that: The drying component (30) further comprises a desiccant, the desiccant being used to absorb gaseous water, the desiccant being arranged in the first drying box (300) and the second drying box (301).

3. The vehicle tail water mist treatment device (1) according to claim 2, characterized in that: The desiccant is a silica gel desiccant.

4. The vehicle tail water mist treatment device (1) according to claim 2, characterized in that: The drying component (30) further comprises a drying member, the drying member being arranged in the first drying box (300) and the second drying box (301), and the drying member being used to dry the desiccant.

5. The vehicle tail water mist treatment device (1) according to claim 1, characterized in that: Also includes: A three-way valve (40), the three-way valve (40) being provided with a first interface (400), a second interface (401) and a third interface (402), the first interface (400) being in communication with the gas-liquid separator (10), the second interface (401) being in communication with the first drying box (300), and the third interface (402) being in communication with the second drying box (301).

6. The vehicle tail water mist treatment device (1) according to claim 1, characterized in that: Also includes: A water storage tank (60) and a control valve, wherein the water storage tank (60) is in communication with the gas-liquid separator (10), liquid water flows into the water storage tank (60), a drain port (600) is provided at the bottom of the water storage tank (60), and the control valve selectively opens the drain port (600).

7. The vehicle tail water mist treatment device (1) according to claim 6, characterized in that: Also includes: A liquid level sensor (70) and a controller, wherein the liquid level sensor (70) is arranged in the water storage tank (60), and the liquid level sensor (70) is used to detect the liquid level height in the water storage tank (60), and the control valve and the liquid level sensor (70) are respectively electrically connected to the controller.

8. A method for controlling a vehicle tail water mist treatment device (1) according to any one of claims 1 to 7, characterized in that: include: Obtaining usage information of the first drying box (300) and the second drying box (301); If the first drying box (300) and the second drying box (301) are not used for the first time, obtaining whether gaseous water enters the first drying box (300) and the second drying box (301); If gaseous water enters one of the first drying box (300) and the second drying box (301), the other of the first drying box (300) and the second drying box (301) and the first drying box (301) alternately operate according to a first predetermined time period.

9. The control method of the vehicle tail water mist treatment device (1) according to claim 8, characterized in that: After the step of obtaining the usage information of the first drying box (300) and the second drying box (301), the method further includes: If the first drying box (300) and the second drying box (301) are used for the first time, the first drying box (300) and the second drying box (301) are operated in sequence according to the second predetermined time period.

10. A vehicle, characterized in that: include: A tail water mist treatment device (1) for a vehicle according to any one of claims 1 to 7.

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