A hydrophobic high-stable motor vehicle exhaust gas toluene adsorption treatment system

Abstract

The present application relates to the technical field of motor vehicle exhaust treatment, and particularly relates to a hydrophobic high-stability motor vehicle exhaust toluene adsorption treatment system, which comprises a first shunt mechanism, a first cavity, an inlet channel, a first branch channel, a second branch channel and a heat supply pipeline arranged on the first cavity; a first switching mechanism arranged in the first cavity and used for controlling the communication switching of the first branch channel and the second branch channel with the inlet channel and the heat supply pipeline; a first adsorption unit arranged on the first branch channel; and a second adsorption unit arranged on the second branch channel. The present application performs toluene adsorption operation by one of the first adsorption unit and the second adsorption unit, and the other adsorption unit uses high-temperature exhaust gas of an engine to heat and desorb toluene, and sends the desorbed toluene back to an engine air inlet for secondary combustion.

Description

Technical Field

[0001] This invention relates to the field of motor vehicle exhaust gas treatment technology, and in particular to a hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas. Background Technology

[0002] Using porous adsorption materials to physically adsorb toluene in exhaust gas is a common technique for purifying motor vehicle exhaust.

[0003] In this type of scheme, porous adsorbent materials, with their abundant internal pore structure, capture and retain toluene molecules flowing through them within the pores, thereby allowing clean airflow to be discharged.

[0004] However, the adsorbent material itself has a definite saturation adsorption capacity. As the operating time accumulates, its pore sites will gradually be occupied by toluene molecules. Once it approaches saturation, the adsorption material's capture capacity will decline sharply, resulting in a reduction in the exhaust gas purification effect. Summary of the Invention

[0005] In view of the problems existing in the above or prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust, comprising, The first diversion mechanism includes a first cavity, and an inlet channel, a first branch channel, a second branch channel, and a heating pipeline disposed on the first cavity; The first switching mechanism, which is located in the first cavity, is used to control the connection and switching between the first branch channel and the second branch channel and the inlet channel and the heating pipeline. The first adsorption unit is disposed on the first branch channel; The second adsorption unit is disposed on the second branch channel; The second diversion mechanism includes a second cavity, and a discharge channel, a third branch channel, a fourth branch channel, and a return pipeline disposed on the second cavity; The second switching mechanism, located in the second cavity, is used to control the connection and switching between the third branch channel and the fourth branch channel and the discharge channel and return pipeline. The first adsorption unit and the third branch channel are connected; The second adsorption unit is connected to the fourth branch channel.

[0008] As a preferred embodiment of the hydrophobic and highly stable toluene adsorption treatment system for motor vehicle exhaust gas of the present invention, wherein: when the inlet channel and the first branch channel are connected, toluene adsorption is performed by the first adsorption unit, and the third branch channel is connected to the outlet channel; When the inlet channel and the second branch channel are connected, toluene is adsorbed using the second adsorption unit, and the fourth branch channel is connected to the outlet channel.

[0009] In a preferred embodiment of the hydrophobic and highly stable toluene adsorption treatment system for motor vehicle exhaust gas of the present invention, when the heating pipeline is connected to the first branch channel, the third branch channel is connected to the return pipeline; When the heating pipeline is connected to the second branch channel, the fourth branch channel is connected to the return pipeline.

[0010] As a preferred embodiment of the hydrophobic and highly stable toluene adsorption treatment system for motor vehicle exhaust gas of the present invention, the first switching mechanism includes a first plug body rotatably disposed in the first cavity, a first arc-shaped groove disposed on the first plug body, and a first guide cavity disposed in the first plug body.

[0011] As a preferred embodiment of the hydrophobic and highly stable toluene adsorption treatment system for motor vehicle exhaust gas of the present invention, the second switching mechanism includes a second plug body rotatably disposed in the second cavity, a second arc-shaped groove disposed on the second plug body, and a second guide cavity disposed on the second plug body.

[0012] As a preferred embodiment of the hydrophobic high-stability toluene adsorption treatment system for motor vehicle exhaust gas of the present invention, wherein: the inlet channel, the first branch channel, and the second branch channel are distributed at equal intervals outside the first cavity; The discharge channel, the third branch channel, and the fourth branch channel are distributed at equal intervals on the outside of the second cavity.

[0013] As a preferred embodiment of the hydrophobic and highly stable toluene adsorption treatment system for motor vehicle exhaust gas of the present invention, it further includes a drive mechanism disposed on the first switching mechanism and the second switching mechanism. The drive mechanism is used to control the rotation of the first plug and the second plug.

[0014] As a preferred embodiment of the hydrophobic high-stability toluene adsorption treatment system for motor vehicle exhaust gas of the present invention, the driving mechanism includes a first lever disposed on the first plug body and a second lever disposed on the second plug body, and further includes a pusher for pushing the first lever and the second lever to rotate. The pusher is rotatably provided with a first push rod and a second push rod, the first push rod and the first lever are rotatably connected, and the second push rod and the second lever are rotatably connected.

[0015] As a preferred embodiment of the hydrophobic and highly stable toluene adsorption treatment system for motor vehicle exhaust gas of the present invention, it further includes a heating mechanism disposed on the heating pipeline. The heating mechanism includes a connecting pipe on the heating pipeline and a reduced diameter section at the end of the connecting pipe. The heating pipeline has an expanded diameter section and also includes an air intake channel on the heating pipeline.

[0016] As a preferred embodiment of the hydrophobic and highly stable toluene adsorption treatment system for motor vehicle exhaust gas of the present invention, wherein: an electronic valve is provided on the air intake channel.

[0017] The beneficial effects of the hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas of the present invention are as follows: The present invention uses one of the first and second adsorption units to adsorb toluene, while the other adsorption unit uses the high-temperature exhaust gas from the engine to heat and desorb toluene, and then sends the desorbed toluene back to the engine intake for secondary combustion. After a certain period of operation, the connection of the pipeline is switched by the operation of the first and second switching mechanisms, so that the adsorption unit that was originally used to adsorb toluene performs desorption, and the adsorption unit that has completed the desorption of toluene performs toluene adsorption again. This keeps the adsorption unit in operation within the optimal adsorption range, improves the toluene capture capacity, and allows the desorbed toluene to be reused for secondary combustion, improving both environmental protection and combustion economy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust.

[0020] Figure 2 This is a schematic diagram of the internal structure of a hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust.

[0021] Figure 3 This is a schematic diagram of the heating mechanism of a hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust.

[0022] Figure 4This is a schematic cross-sectional view of a hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust.

[0023] Figure 5 This is a schematic diagram of the drive mechanism of a hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust.

[0024] Figure 6 This is a top view of a hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust.

[0025] In the diagram: 1. First diversion mechanism; 11. First cavity; 12. Inlet channel; 13. First branch channel; 14. Second branch channel; 15. Heating pipeline; 2. First switching mechanism; 21. First plug; 22. First arc groove; 23. First guide cavity; 3. First adsorption unit; 31. First shell; 32. First adsorption material; 4. Second adsorption unit; 41. Second shell; 42. Second adsorption material; 5. Second diversion mechanism; 51. Second cavity; 52. Drainage... 53. Outlet channel; 54. Third branch channel; 55. Fourth branch channel; 6. Return pipeline; 7. Second switching mechanism; 61. Second plug; 62. Second arc groove; 63. Second guide cavity; 7. Drive mechanism; 71. First lever; 72. Second lever; 73. Pushing component; 731. First push rod; 732. Second push rod; 8. Heating mechanism; 81. Connecting pipe; 82. Reduction section; 83. Expansion section; 84. Intake channel; 85. Mixing chamber; 86. Electronic valve. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1, referring to Figures 1 to 4This is the first embodiment of the present invention. This embodiment provides a hydrophobic and highly stable toluene adsorption treatment system for motor vehicle exhaust gas, including a first diversion mechanism 1, which includes a first cavity 11, and an inlet channel 12, a first branch channel 13, a second branch channel 14, and a heating pipeline 15 disposed on the first cavity 11. The inlet channel 12, the first branch channel 13, and the second branch channel 14 are distributed at equal intervals outside the first cavity 11; the heating pipe 15 is located at the bottom of the first cavity 11, and the first cavity 11 connects the inlet channel 12, the first branch channel 13, the second branch channel 14, and the heating pipe 15.

[0030] Specifically, the angle between the entrance channel 12, the first branch channel 13, and the second branch channel 14 is 120 degrees.

[0031] It should be noted that the inlet channel 12 is connected to the engine exhaust pipe, specifically after the vehicle's particulate filter.

[0032] The first switching mechanism 2 is located in the first cavity 11 and is used to control the connection and switching between the first branch channel 13 and the second branch channel 14 and the inlet channel 12 and the heating pipeline 15. The first switching mechanism 2 can control the connection between the first branch channel 13 and the inlet channel 12 or the heating pipeline 15. When the first branch channel 13 is connected to the inlet channel 12, the first switching mechanism 2 will also connect the heating pipeline 15 and the second branch channel 14. Conversely, if the second branch channel 14 is connected to the inlet channel 12, the first switching mechanism 2 will also connect the heating pipeline 15 and the first branch channel 13, thus realizing the channel switching operation.

[0033] The first adsorption unit 3 is disposed on the first branch channel 13; Specifically, the first adsorption unit 3 is composed of a first shell 31 and a first adsorption material 32, with the first adsorption material 32 disposed inside the first shell 31.

[0034] The second adsorption unit 4 is disposed on the second branch channel 14; Specifically, the second adsorption unit 4 is composed of a second shell 41 and a second adsorption material 42, with the second adsorption material 42 disposed inside the second shell 41.

[0035] It should be noted that the first adsorbent material 32 and the second adsorbent material 42 are preferably adsorbent materials with hydrophobic properties, such as all-silica molecular sieve structure, high-silica molecular sieve, silanized molecular sieve, etc. The hydrophobicity of the material can improve the adsorption effect of toluene. If the first adsorbent material 32 and the second adsorbent material 42 contain water, it will not only affect the adsorption of toluene, but also affect the subsequent desorption of toluene. After having hydrophobic properties, water will not accumulate inside the first adsorbent material 32 and the second adsorbent material 42 after the temperature reaches the standard during the operation.

[0036] The second diversion mechanism 5 includes a second cavity 51, and a discharge channel 52, a third branch channel 53, a fourth branch channel 54, and a return pipe 55 disposed on the second cavity 51. The discharge channel 52, the third branch channel 53, and the fourth branch channel 54 are distributed at equal intervals outside the second cavity 51, and the return pipe 55 is located at the bottom of the second cavity 51. The second cavity 51 connects the discharge channel 52, the third branch channel 53, the fourth branch channel 54, and the return pipe 55.

[0037] Specifically, the angle between the discharge channel 52, the third branch channel 53, and the fourth branch channel 54 is 120 degrees.

[0038] The return pipe 55 is connected to the engine intake manifold and is used to send the desorbed toluene back into the engine for secondary combustion.

[0039] The second switching mechanism 6 is located in the second cavity 51 and is used to control the connection and switching between the third branch channel 53 and the fourth branch channel 54 and the discharge channel 52 and the return pipeline 55; wherein the first adsorption unit 3 is connected to the third branch channel 53. The second adsorption unit 4 and the fourth branch channel 54 are connected; The second switching mechanism 6 can control the connection between the discharge channel 52 and the third branch channel 53 or the fourth branch channel 54. When the discharge channel 52 and the third branch channel 53 are connected, the fourth branch channel 54 and the return pipeline 55 are connected. Conversely, when the discharge channel 52 and the fourth branch channel 54 are connected, the return pipeline 55 will be connected to the third branch channel 53, thereby realizing the switching of the channels.

[0040] It should be noted that the heating pipe 15 is connected to the engine exhaust manifold, and the high temperature generated by the engine heats the corresponding adsorbent material to achieve the desorption operation.

[0041] For example, refer to Figure 2 As shown, when the inlet channel 12 and the first branch channel 13 are connected, the third branch channel 53 and the outlet channel 52 are connected; at this time, toluene is adsorbed by the first adsorption unit 3, and the purified exhaust gas is discharged from the outlet channel 52.

[0042] At this time, the heating pipe 15 and the second branch channel 14 are connected, and the fourth branch channel 54 and the return pipe 55 are connected. After the high-temperature gas generated by the engine exhaust manifold enters the heating pipe 15, it flows through the second branch channel 14 and then enters the second adsorption unit 4. By heating the second adsorption unit 4, the toluene inside is detached and enters the fourth branch channel 54. After flowing into the return pipe 55, it flows back to the engine intake for secondary combustion.

[0043] For example, when the inlet channel 12 and the second branch channel 14 are connected, toluene is adsorbed by the second adsorption unit 4, the fourth branch channel 54 and the outlet channel 52 are connected, and the purified exhaust gas is discharged from the outlet channel 52.

[0044] At this time, when the heating pipe 15 and the first branch channel 13 are connected, the third branch channel 53 and the return pipe 55 are connected; the high temperature gas of the heating pipe 15 is used to heat the first adsorption unit 3, so that the toluene absorbed by the first adsorption unit 3 is removed, and the removed toluene is sent back into the engine for combustion through the return pipe 55.

[0045] In use, one of the first adsorption unit 3 and the second adsorption unit 4 adsorbs toluene, while the other adsorption unit uses the high-temperature exhaust gas from the engine to heat and desorb toluene. The desorbed toluene is then sent back to the engine intake for secondary combustion. After a certain period of operation, the connection of the pipeline is switched by the operation of the first switching mechanism 2 and the second switching mechanism 6. This allows the adsorption unit that was originally used to adsorb toluene to perform desorption, and the adsorption unit that has completed the desorption of toluene to perform the adsorption operation again. This keeps the adsorption unit in operation within the optimal adsorption range, improves the toluene capture capacity, and allows the desorbed toluene to be reused through secondary combustion, improving both environmental protection and combustion economy.

[0046] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention. Unlike the previous embodiment, the first switching mechanism 2 includes a first plug 21 rotatably disposed in the first cavity 11, a first arc-shaped groove 22 disposed on the first plug 21, and a first guide cavity 23 disposed in the first plug 21.

[0047] The first guide cavity 23 has an L-shaped structure, the first plug 21 has a rotation angle of at least 120 degrees, and the span angle of the first arc groove 22 is greater than 120 degrees and less than 240 degrees.

[0048] Reference Figure 4As shown, the exhaust gas generated by the engine enters the interior of the first cavity 11 through the inlet channel 12. At this time, it is guided and transported to the first branch channel 13 through the first arc-shaped groove 22. The high-temperature gas of the heating pipe 15 is transported from the L-shaped first guide cavity 23 to the interior of the second branch channel 14. When switching is required, the first plug 21 is rotated counterclockwise. During the rotation, the area of ​​the first arc-shaped groove 22 in the first branch channel 13 will gradually decrease until the first arc-shaped groove 22 is aligned with the second branch channel 14 and the inlet channel 12. At this time, the first guide cavity 23 will be aligned with the first branch channel 13, realizing the pipeline switching operation.

[0049] Specifically, the second switching mechanism 6 includes a second plug 61 rotatably disposed within the second cavity 51, a second arc-shaped groove 62 disposed on the second plug 61, and a second guide cavity 63 disposed on the second plug 61.

[0050] The second switching mechanism 6 and the first switching mechanism 2 have the same structure and the same working principle, such as... Figure 4 As shown, the exhaust gas after toluene adsorption by the first adsorption unit 3 is discharged from the third branch channel 53, and after passing through the second arc groove 62, it is discharged from the discharge channel 52. The mixed gas after desorption by the second adsorption unit 4 enters the fourth branch channel 54 and then passes through the second guide cavity 63, and then flows into the return pipeline 55. When the first switching mechanism 2 switches, the first plug 21 rotates counterclockwise and the second plug 61 rotates clockwise, so that the second guide cavity 63 is switched to connect with the third branch channel 53, and the second arc groove 62 and the fourth branch channel 54 are connected.

[0051] It also includes a drive mechanism 7 disposed on the first switching mechanism 2 and the second switching mechanism 6; the drive mechanism 7 is used to control the rotation of the first plug 21 and the second plug 61.

[0052] For example, the drive mechanism 7 can be two separately set motors, which are respectively set on the first plug 21 and the second plug 61, and the synchronous rotation of the first plug 21 and the second plug 61 is controlled by the control program.

[0053] Preferably, the drive mechanism 7 includes a first lever 71 disposed on the first plug body 21 and a second lever 72 disposed on the second plug body 61, and also includes a pusher 73 for pushing the first lever 71 and the second lever 72 to rotate; the first plug body 21 is disposed through the first cavity 11 at the top, the first lever 71 is fixedly connected to the top end of the first plug body 21, the second plug body 61 is disposed through the second cavity 51 at the top, the top end of the second plug body 61 is fixedly connected to the second lever 72, and the rotation of the first plug body 21 and the second plug body 61 can be controlled by pushing the first lever 71 and the second lever 72 by the pusher 73.

[0054] The pusher 73 is rotatably provided with a first push rod 731 and a second push rod 732. The first push rod 731 and the first lever 71 are rotatably connected, and the second push rod 732 and the second lever 72 are rotatably connected.

[0055] The pusher 73 can be driven by a drive motor to rotate. When the pusher 73 rotates, it will push the first lever 71 and the second lever 72 through the first push rod 731 and the second push rod 732 respectively, so that the first plug 21 and the second plug 61 will rotate accordingly, thereby realizing the switching of the channel.

[0056] The rest of the structure is the same as in Example 1.

[0057] Example 3, referring to Figures 1-6 This is the third embodiment of the present invention. Unlike the previous embodiment, it also includes a heating mechanism 8 disposed on the heating pipeline 15. The heating mechanism 8 is used to regulate the gas temperature flowing through the adsorption unit of the toluene desorption operation.

[0058] Specifically, the heating mechanism 8 includes a connecting pipe 81 provided on the heating pipeline 15, and a reduced diameter section 82 provided at the end of the connecting pipe 81. The heating pipeline 15 is provided with an expanded diameter section 83, and also includes an air intake channel 84 provided on the heating pipeline 15.

[0059] It should be noted that the connecting pipe 81 is connected to the exhaust manifold of the engine. The diameter of the reduced diameter section 82 gradually decreases from the connecting pipe 81 to the heating pipe 15. The diameter of the expanded diameter section 83 is fixed inside the heating pipe 15, and its diameter gradually increases from the connecting pipe 81 to the heating pipe 15. The reduced diameter section 82 and the expanded diameter section 83 form a mixing chamber 85, which is used to mix the cold air and high temperature gas entering from the intake passage 84 for temperature regulation. The intake passage 84 is located at the mixing chamber 85 and is connected to the external atmosphere.

[0060] Specifically, an electronic valve 86 is provided on the air intake channel 84. The electronic valve 86 is used to adjust the opening of the air intake channel 84 and adjust the amount of cold air drawn in by the air intake channel 84, thereby adjusting the temperature of the high-temperature gas entering the heating pipeline 15 so that the toluene desorption is in the optimal temperature range.

[0061] It should be noted that after the high-temperature gas generated by the engine exhaust enters the connecting pipe 81, according to the Venturi effect, the high-pressure airflow passes through the constricted diameter section 82 and the flow velocity increases sharply. A low-pressure zone is formed locally in the mixing chamber 85, which allows external cold air to be drawn into the mixing chamber 85 from the intake channel 84 for mixing. The mixed gas is decelerated by the expansion section 83 and then transported to the heating pipe 15. By drawing in external air for mixing, the temperature of the high-temperature gas directly discharged by the engine can be reduced, so that it can be in the optimal temperature range for toluene desorption, thereby improving the desorption efficiency of toluene.

[0062] The rest of the structure is the same as in Example 2.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust, characterized in that: include, The first diversion mechanism (1) includes a first cavity (11), and an inlet channel (12), a first branch channel (13), a second branch channel (14), and a heating pipeline (15) disposed on the first cavity (11). The first switching mechanism (2) is located in the first cavity (11) and is used to control the connection switching between the first branch channel (13) and the second branch channel (14) and the inlet channel (12) and the heating pipeline (15); The first adsorption unit (3) is disposed on the first branch channel (13); The second adsorption unit (4) is disposed on the second branch channel (14); The second diversion mechanism (5) includes a second cavity (51), and a discharge channel (52), a third branch channel (53), a fourth branch channel (54), and a return pipeline (55) disposed on the second cavity (51). The second switching mechanism (6) is located in the second cavity (51) and is used to control the connection and switching between the third branch channel (53) and the fourth branch channel (54) and the discharge channel (52) and the return pipeline (55); The first adsorption unit (3) and the third branch channel (53) are connected; The second adsorption unit (4) is connected to the fourth branch channel (54).

2. The hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas as described in claim 1, characterized in that: When the inlet channel (12) and the first branch channel (13) are connected, toluene is adsorbed by the first adsorption unit (3), and the third branch channel (53) and the outlet channel (52) are connected. When the inlet channel (12) and the second branch channel (14) are connected, toluene adsorption is performed by the second adsorption unit (4), and the fourth branch channel (54) and the outlet channel (52) are connected.

3. The hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas as described in claim 1 or 2, characterized in that: When the heating pipeline (15) and the first branch channel (13) are connected, the third branch channel (53) and the return pipeline (55) are connected. When the heating pipeline (15) and the second branch channel (14) are connected, the fourth branch channel (54) and the return pipeline (55) are connected.

4. The hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas as described in claim 1, characterized in that: The first switching mechanism (2) includes a first plug (21) rotatably disposed in the first cavity (11), a first arc groove (22) disposed on the first plug (21), and a first guide cavity (23) disposed in the first plug (21).

5. The hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas as described in claim 4, characterized in that: The second switching mechanism (6) includes a second plug (61) rotatably disposed in the second cavity (51), a second arc-shaped groove (62) disposed on the second plug (61), and a second guide cavity (63) disposed on the second plug (61).

6. The hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas as described in claim 1, 2, 4, or 5, characterized in that: The entry channel (12), the first branch channel (13), and the second branch channel (14) are distributed at equal intervals outside the first cavity (11); The discharge channel (52), the third branch channel (53), and the fourth branch channel (54) are distributed at equal intervals on the outside of the second cavity (51).

7. The hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas as described in claim 5, characterized in that: It also includes a drive mechanism (7) disposed on the first switching mechanism (2) and the second switching mechanism (6); The drive mechanism (7) is used to control the rotation of the first plug (21) and the second plug (61).

8. The hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas as described in claim 7, characterized in that: The drive mechanism (7) includes a first lever (71) disposed on the first plug body (21) and a second lever (72) disposed on the second plug body (61), and also includes a pusher (73) for pushing the first lever (71) and the second lever (72) to rotate. The pusher (73) is rotatably provided with a first push rod (731) and a second push rod (732), the first push rod (731) and the first lever (71) are rotatably connected, and the second push rod (732) and the second lever (72) are rotatably connected.

9. The hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas as described in claim 1, 2, 4, 5, or 7, characterized in that: It also includes a heating mechanism (8) installed on the heating pipeline (15); The heating mechanism (8) includes a connecting pipe (81) provided on the heating pipeline (15) and a reduced diameter section (82) provided at the end of the connecting pipe (81). The heating pipeline (15) is provided with an expanded diameter section (83) and also includes an air intake channel (84) provided on the heating pipeline (15).

10. The hydrophobic, highly stable toluene adsorption treatment system for motor vehicle exhaust gas as described in claim 9, characterized in that: An electronic valve (86) is provided on the air intake channel (84).

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