A highly efficient automobile exhaust gas aftertreatment device

Abstract

The present invention relates to the technical field of exhaust gas treatment devices, and specifically to an efficient automobile exhaust gas after-treatment device. An efficient automobile exhaust gas after-treatment device comprises an intake pipe, an oxidation catalytic part and a tail filter part. A pressure relief assembly is connected to the intake pipe, and the pressure relief assembly is connected through the inside of the oxidation catalytic part. The oxidation catalytic part is connected between the intake pipe and the tail filter part. A plurality of connecting grooves and a plurality of staggered exhaust gas treatment plates are arranged inside the oxidation catalytic part, and the exhaust gas treatment plates are slidably connected to the connecting grooves. Staggered oxidation catalytic plates and particulate oxidation catalytic plates are arranged inside the oxidation catalytic part to efficiently treat the exhaust gas. A pressure relief assembly is connected to the intake pipe. When the instantaneous pressure inside the connection end of the intake pipe and the oxidation catalytic part is too large, the exhaust gas inside the exhaust pipe flows into the pressure relief assembly, thereby reducing the air pressure between the exhaust pipe and the oxidation catalytic part, preventing the cylinder from exploding, and reducing the maintenance frequency of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of exhaust gas treatment devices, in particular to a high-efficiency automobile exhaust gas post-treatment device. Background Art

[0002] The after-processor is usually installed on the exhaust pipe of the whole vehicle. Generally, the diesel engine exhaust after-processor consists of two parts: the front is the oxidation catalyst (DOC for short), and the rear is the particulate oxidation filter (POC for short).

[0003] The internal structure of the after-processor is a tiny honeycomb. The main consideration of this structure is to maximize the contact area between the exhaust gas and the after-processor, thereby improving the filtering efficiency of harmful substances. However, it also increases the exhaust resistance. The exhaust resistance has a great impact on the performance of the diesel engine, resulting in increased fuel consumption and emissions. In addition, the after-processor is prone to clogging, and the cost of repair and replacement is high.

[0004] The Chinese patent application number CN201610226401.8 is a recyclable after-treatment device based on diesel engine exhaust treatment. The oxidation catalyst and the particulate oxidation catalyst are set to be spherical, and they are driven to rotate by a stepper motor to realize the work of different parts of the after-treatment device. It can extend the service life of the after-treatment device, prevent blockage in the intake pipe, and reduce the maintenance and replacement costs of the equipment.

[0005] However, in this application, the processing efficiency of the after-treatment device cannot be adjusted according to the exhaust volume inside the intake pipe. When a large amount of exhaust gas enters the after-treatment device at one time, since the maximum processing capacity of the after-treatment device remains unchanged, more gas cannot be discharged quickly, which may easily cause problems such as cylinder explosion, affecting the service life of the equipment.

[0006] The technical problem to be solved by the present invention is: to design a high-efficiency automobile exhaust after-treatment device, adjust the exhaust treatment efficiency of the after-treatment device according to the air pressure inside the exhaust device, prevent the internal pressure of the after-treatment device from being too high, reduce the equipment from exploding, and ensure the normal operation of the equipment. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a highly efficient automobile exhaust gas after-treatment device.

[0008] The technical solution adopted by the present invention to solve its technical problems is: an automobile high-efficiency exhaust gas after-treatment device, including an intake pipe, an oxidation catalytic part and a tail filter part, the intake pipe is connected with a pressure relief component, the pressure relief component is connected through the inside of the oxidation catalytic part, the oxidation catalytic part is connected between the intake pipe and the tail filter part, the oxidation catalytic part is provided with a plurality of connecting grooves and a plurality of staggered exhaust gas treatment plates, and the exhaust gas treatment plates are slidably connected to the connecting grooves.

[0009] As an optimization, the oxidation catalytic part includes a shell, one end of which is connected to the intake pipe, and the other end of which is connected to the tail filter part. A gas channel is provided inside the connecting groove, and several connecting grooves are divided into two groups and are arranged on both sides of the gas channel.

[0010] As an optimization, the exhaust gas treatment plate is in the shape of a triangular prism, the bottom surface of the exhaust gas treatment plate is a right triangle, the narrower side elevation of the exhaust gas treatment plate is a connecting surface, the width of the connecting surface is equal to the width of the connecting groove, the height of the right triangle is greater than the sum of the length of the connecting groove and the width of the gas channel, and the connecting surfaces of two adjacent exhaust gas treatment plates are relatively arranged on the inner side of the outer shell.

[0011] As an optimization, the edge arranged opposite to the connecting surface is a connecting edge, and a sealing assembly is provided on the inner side of the connecting groove opening for accommodating the connecting edge. The sealing assembly includes a sealing connecting seat and a sealing plate. The height of the sealing connecting seat is equal to the height of the connecting groove. A supporting spring is provided inside the sealing connecting seat. The sealing plate is slidably and sealingly connected to the sealing connecting seat, and the sealing plate is fixedly connected to the supporting spring.

[0012] As an optimization, an adjustment component is provided on the outside of the oxidation catalytic part, and the adjustment component includes two adjustment arms, an adjustment motor and a plurality of adjustment rods. A connecting arm is provided on the upper end of the adjustment arm, and the adjustment rod is evenly connected to the side of the adjustment arm adjacent to the outer shell. The adjustment rod passes through the outer shell and is arranged in a connecting groove. The adjustment rod is fixedly connected to the connecting surface of the exhaust gas treatment plate. The two adjustment arms are arranged on two opposite sides of the outer shell, and the two adjustment arms are arranged horizontally and parallel. The adjustment motor is arranged between the two adjustment arms, and an adjustment gear is provided on the output shaft of the adjustment motor. An adjustment rack is provided on the side of the adjustment arm adjacent to the adjustment gear, and the adjustment rack is meshed and connected. The adjustment arm and the adjustment rod are arranged horizontally and parallel.

[0013] As an optimization, the exhaust gas treatment plate includes an oxidation catalytic plate and a particulate oxidation catalytic plate, the oxidation catalytic plate and the particulate oxidation catalytic plate have the same shape, and the oxidation catalytic plate and the particulate oxidation catalytic plate are staggered.

[0014] As an optimization, the pressure relief assembly includes a pressure relief barrel and a pressure relief pipe, a first solenoid valve is provided between the pressure relief barrel and the intake pipe, a second solenoid valve is connected between the pressure relief barrel and the pressure relief pipe, two connecting gas nozzles are provided at the end of the pressure relief pipe away from the pressure relief barrel, the two connecting gas nozzles are through-connected with the gas channel of the oxidation catalytic part, the connecting gas nozzles are connected between two adjacent exhaust gas treatment plates, and a third solenoid valve is provided on the pressure relief pipe between the two connecting gas nozzles.

[0015] As an optimization, a controller is also included. A first pressure sensor is provided in the intake pipe, a second pressure sensor is provided in the pressure relief barrel, and a third pressure sensor is provided in the tail filter part. The controller is connected to the first pressure sensor, the second pressure sensor and the third pressure sensor through lines. The controller is used to execute commands to the regulating motor, the first solenoid valve, the second solenoid valve and the third solenoid valve.

[0016] As an optimization, the tail filter part includes a filter box, a filter screen and an exhaust pipe, one side of the filter box is connected to the oxidation catalytic part, the filter screen is columnar, the filter screen is vertically arranged inside the filter box, one end of the exhaust pipe is connected to the bottom of the filter box, the connecting end of the exhaust pipe and the filter box is coaxial with the filter screen, the side of the filter box connected to the oxidation catalytic part is recessed downward to form an oil collecting tank, and an oil drain valve is provided at the bottom of the oil collecting tank.

[0017] The beneficial effect of this scheme is: a highly efficient automobile exhaust gas post-treatment device has the following benefits:

[0018] Staggered oxidation catalytic plates and particulate oxidation catalytic plates are arranged inside the oxidation catalytic part to efficiently process the exhaust gas. A pressure relief component is connected to the intake pipe. When the instantaneous pressure inside the connection end between the intake pipe and the oxidation catalytic part is too high, the exhaust gas inside the exhaust pipe flows into the pressure relief component to reduce the air pressure between the exhaust pipe and the oxidation catalytic part, prevent the cylinder from exploding, and reduce the maintenance frequency of the equipment.

[0019] When the pressure inside the pressure relief barrel is too high, the second control valve and the third control valve are opened to discharge the exhaust gas inside the pressure relief barrel into the front section and the rear section of the oxidation catalytic part, thereby reducing the pressure at the connection between the oxidation catalytic part and the intake pipe;

[0020] The exhaust gas treatment plate is connected by an adjusting component. When the air pressure at the connection between the intake pipe and the oxidation catalytic part is too high, the exhaust gas treatment plate is adjusted by an adjusting motor to slide along the connecting groove, so that the exhaust gas passes through the thinner part of the exhaust gas treatment plate, thereby increasing the exhaust gas treatment speed, quickly reducing the gas pressure inside the intake pipe, and preventing the pipeline from bursting. When the air pressure at the connection between the intake pipe and the oxidation catalytic part is too low, the exhaust gas treatment plate is adjusted by the adjusting part to move the thicker position of the exhaust gas treatment plate to the gas channel, thereby extending the contact time between the exhaust gas and the exhaust gas treatment plate and improving the exhaust gas treatment effect.

[0021] An oil collecting tank is provided at the front end of the tail filter part, which is convenient for collecting and cleaning the filter residue and filter tail oil, and is quick and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 It is an axial schematic diagram of the present invention.

[0023] Attached Figure 2 It is a schematic diagram of the bottom axial side of the present invention.

[0024] Attached Figure 3 It is a schematic diagram of the internal structure of the oxidation catalytic part of the present invention.

[0025] Attached Figure 4 It is a schematic top view of the oxidation catalytic part of the present invention.

[0026] Attached Figure 5 The present invention is attached Figure 4 Schematic diagram of the enlarged structure of part A.

[0027] Attached Figure 6 It is a schematic diagram of the bottom axial side of the oxidation catalytic part of the present invention.

[0028] Attached Figure 7 It is a schematic diagram of the cutaway structure of the tail filter part of the present invention.

[0029] Among them, 1. intake pipe, 2. oxidation catalytic part, 3. connecting groove, 4. gas channel, 5. connecting surface, 6. connecting edge, 7. sealing connecting seat, 8. sealing plate, 9. supporting spring, 10. adjusting arm, 11. adjusting motor, 12. adjusting rod, 13. adjusting gear, 14. adjusting rack, 15. oxidation catalytic plate, 16. particulate oxidation catalytic plate, 17. pressure relief barrel, 18. pressure relief pipe, 19. first solenoid valve, 20. second solenoid valve, 21. connecting air nozzle, 22. third solenoid valve, 23. first pressure sensor, 24. second pressure sensor, 25. third pressure sensor, 26. filter box, 27. filter net, 28. exhaust pipe, 29. oil collecting tank, 30. oil drain valve. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] like Figure 1 , 3 As shown, a high-efficiency automobile exhaust after-treatment device includes an intake pipe 1, an oxidation catalytic part 2 and a tail filter part. The intake pipe 1 is connected with a pressure relief component, and the pressure relief component is connected through the inside of the oxidation catalytic part 2. The oxidation catalytic part 2 is connected between the intake pipe 1 and the tail filter part. The oxidation catalytic part 2 is provided with a plurality of connecting grooves 3 and a plurality of staggered exhaust treatment plates. The exhaust treatment plates are slidably connected with the connecting grooves 3.

[0034] like Figure 1 , 3 As shown, the oxidation catalytic part 2 includes a shell, one end of which is connected to the intake pipe 1, and the other end of which is connected to the tail filter part. A gas channel 4 is provided inside the connecting groove 3, and several connecting grooves 3 are divided into two groups and are arranged on both sides of the gas channel 4 opposite to each other.

[0035] like Figure 3 As shown, the exhaust gas treatment plate is in the shape of a triangular prism, the bottom surface of the exhaust gas treatment plate is a right triangle, the narrower side elevation of the exhaust gas treatment plate is a connecting surface 5, the width of the connecting surface 5 is equal to the width of the connecting groove 3, the height of the right triangle is greater than the sum of the length of the connecting groove 3 and the width of the gas channel 4, and the connecting surfaces 5 of two adjacent exhaust gas treatment plates are relatively arranged on the inner side of the outer shell.

[0036] like Figure 3 , 4 As shown, the edge arranged opposite to the connecting surface 5 is a connecting edge 6, and a sealing component is provided on the inner side of the opening of the connecting groove 3 for accommodating the connecting edge 6, and the sealing component includes a sealing connection seat 7 and a sealing plate 8, and the height of the sealing connection seat 7 is equal to the height of the connecting groove 3, and a supporting spring 9 is provided inside the sealing connection seat 7, and the sealing plate 8 is slidingly and sealingly connected to the sealing connection seat 7, and the sealing plate 8 is fixedly connected to the supporting spring 9.

[0037] like Figure 3 , 6As shown, the oxidation catalytic part 2 is provided with an adjustment component on the outside, and the adjustment component includes two adjustment arms 10, an adjustment motor 11 and a plurality of adjustment rods 12. A connecting arm is provided on the upper end of the adjustment arm 10, and the adjustment rod 12 is evenly connected to the side of the adjustment arm 10 adjacent to the outer shell. The adjustment rod 12 passes through the outer shell and is arranged in the connecting groove 3. The adjustment rod 12 is fixedly connected to the connecting surface 5 of the exhaust gas treatment plate. The two adjustment arms 10 are arranged on two opposite sides of the outer shell, and the two adjustment arms 10 are arranged horizontally and parallel. The adjustment motor 11 is arranged between the two adjustment arms 10. An adjustment gear 13 is provided on the output shaft of the adjustment motor 11. An adjustment rack 14 is provided on the side of the adjustment arm 10 adjacent to the adjustment gear 13. The adjustment rack 14 is meshed and connected, and the adjustment arm 10 and the adjustment rod 12 are arranged horizontally and parallel.

[0038] like Figure 3 As shown, the exhaust gas treatment plate includes an oxidation catalytic plate 15 and a particulate oxidation catalytic plate 16 . The oxidation catalytic plate 15 and the particulate oxidation catalytic plate 16 have the same shape, and the oxidation catalytic plate 15 and the particulate oxidation catalytic plate 16 are arranged alternately.

[0039] like Figure 1 , 3 As shown, the pressure relief assembly includes a pressure relief barrel 17 and a pressure relief pipe 18, a first solenoid valve 19 is provided between the pressure relief barrel 17 and the intake pipe 1, a second solenoid valve 20 is connected between the pressure relief barrel 17 and the pressure relief pipe 18, and two connecting gas nozzles 21 are provided at one end of the pressure relief pipe 18 away from the pressure relief barrel 17, the two connecting gas nozzles 21 are through-connected with the gas channel 4 of the oxidation catalytic part 2, the connecting gas nozzles 21 are connected between two adjacent exhaust gas treatment plates, and a third solenoid valve 22 is provided on the pressure relief pipe 18 between the two connecting gas nozzles 21.

[0040] like Figure 1 , 6 As shown, it also includes a controller, the intake pipe 1 is provided with a first pressure sensor 23, the pressure relief barrel 17 is provided with a second pressure sensor 24, the tail filter part is provided with a third pressure sensor 25, the controller is connected to the first pressure sensor 23, the second pressure sensor 24 and the third pressure sensor 25 through lines, and the controller is used to execute commands to the regulating motor 11, the first solenoid valve 19, the second solenoid valve 20 and the third solenoid valve 22.

[0041] like Figure 3 , 7As shown, the tail filter part includes a filter box 26, a filter screen 27 and an exhaust pipe 28. One side of the filter box 26 is connected to the oxidation catalytic part 2. The filter screen 27 is columnar and vertically arranged inside the filter box 26. One end of the exhaust pipe 28 is connected to the bottom of the filter box 26. The connection end of the exhaust pipe 28 and the filter box 26 is coaxial with the filter screen 27. The side of the filter box 26 connected to the oxidation catalytic part 2 is recessed downward to form an oil collecting tank 29. An oil drain valve 30 is provided at the bottom of the oil collecting tank 29.

[0042] Directions:

[0043] The exhaust gas enters the oxidation catalytic part 2 through the intake pipe 1, is processed by the oxidation catalytic plate 15 and the particulate oxidation catalytic plate 16 in the oxidation catalytic part 2, enters the filter box 26, is filtered by the filter screen 27, and is discharged through the exhaust pipe 28. The waste oil filtered out of the filter box 26 flows into the oil collecting tank 29 and is finally cleaned through the oil drain valve 30.

[0044] The first pressure sensor 23 detects the air pressure at the connection between the intake pipe 1 and the oxidation catalyst part 2, the second pressure sensor 24 detects the pressure in the pressure relief barrel 17, and the third pressure sensor 25 detects the air pressure between the oxidation catalyst part 2 and the tail filter part, and transmits the pressure signal to the controller;

[0045] The controller sets a certain upper pressure threshold and a lower pressure threshold. When the exhaust gas enters the oxidation catalytic part 2 through the first intake pipe 1, if the first pressure sensor 23 detects that the pressure increases instantaneously and exceeds the upper pressure threshold, the controller controls the first solenoid valve 19 to open, so that the exhaust gas in the intake pipe 1 quickly flows into the pressure relief barrel 17, to prevent the air pressure in the intake pipe 1 from being too high.

[0046] At the same time, since the intake air volume in the intake pipe 1 increases instantly, the controller controls the adjustment motor 11 to operate, and the adjustment gear 13 on the adjustment motor 11 drives the adjustment rack 14 to move, so that the adjustment arm 10 moves toward the outside of the oxidation catalytic part 2, so that the adjustment rod 12 pulls the exhaust gas treatment plate to move away from the oxidation catalytic part 2, so that the thinner exhaust gas treatment plate moves into the gas channel 4, reducing the contact time between the gas and the exhaust gas treatment plate, and balancing the air pressure at the connection between the intake pipe 1 and the oxidation catalytic part 2 to prevent the cylinder from exploding;

[0047] When the pressure in the pressure relief barrel 17 gradually increases to exceed the upper pressure threshold, the controller controls the second solenoid valve 20 to open, so that the exhaust gas in the pressure relief barrel 17 enters the inner front end of the oxidation catalytic part 2 through the pressure relief pipe 18, so that the exhaust gas inside the pressure relief barrel 17 enters the oxidation catalytic part 2;

[0048] When the pressure in the pressure relief barrel 17 still does not drop below the upper pressure threshold, the controller controls the third solenoid valve 22 to open, so that the gas in the pressure relief barrel 17 enters the rear section of the oxidation catalytic part 2 through the pressure relief pipe 18, thereby reducing the gas pressure in the pressure relief barrel 17;

[0049] Through the above operation, until the pressure detected by the first pressure sensor 23 is lower than the upper pressure threshold, the first solenoid valve 19, the second solenoid valve 20 and the third solenoid valve 22 are closed in sequence, and at the same time, the middle section of the exhaust gas treatment plate is driven to move into the gas channel by adjusting the motor 11 to extend the contact time between the exhaust gas and the exhaust gas treatment plate;

[0050] When the gas flow in the intake pipe 1 is small and the first pressure sensor 23 detects that the gas pressure is less than the lower pressure threshold, the controller controls the adjusting motor 11, the adjusting arm 10 and the adjusting rod 12 to push toward the inner side of the oxidation catalytic part 2, so that the maximum thickness of the exhaust gas treatment plate moves into the gas channel 4, further enhancing the contact time between the gas and the exhaust gas treatment plate, thereby improving the exhaust gas treatment effect.

[0051] Similarly, when the third pressure sensor 25 detects that the gas pressure in the equipment is too high, it indicates that the exhaust of the tail filter part is not timely, and the oil collecting tank 29 needs to be cleaned in time. At the same time, the controller adjusts the movement of the tail treatment plate in the oxidation catalytic part 2 so that the exhaust gas passes through the maximum thickness of the exhaust gas treatment plate, thereby reducing the gas pressure at the connection between the oxidation catalytic part 2 and the tail filter part.

[0052] The present solution also includes a controller, the position of which is set by the staff according to actual conditions during operation. The controller is used to control the electrical devices used in the present solution, including but not limited to sensors, motors, telescopic rods, water pumps, solenoid valves, heating wires, heat pumps, display screens, computer input devices, switch buttons, communication equipment, lights, speakers and microphones; the controller is an Intel processor, an AMD processor, a PLC controller, an ARM processor or a single-chip microcomputer, and the supporting motherboard, memory stick, storage medium and power supply are also included therewith, and the power supply is AC or a lithium battery; when a display screen is provided, a display card is also provided; for the operating principle of the controller, please refer to "Principles of Automatic Control", "Principles of Microcontrollers and Application Simulation Cases" and "Principles and Applications of Sensors" published by Tsinghua University Press, and other books in the field can be used for reference; other automatic controls and electrical devices not mentioned are all knowledge well known to those skilled in the art and will not be repeated here.

[0053] The above-mentioned specific embodiments are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific embodiments. Any automobile high-efficiency exhaust after-treatment device that conforms to the claims of the present invention and any appropriate changes or modifications made thereto by ordinary technicians in the said technical field shall fall within the patent protection scope of the present invention.

Claims

1. An efficient automobile exhaust gas post-treatment device, characterized in that: It includes an intake pipe, an oxidation catalytic part and a tail filter part, the intake pipe is connected with a pressure relief component, the pressure relief component is connected to the inside of the oxidation catalytic part, the oxidation catalytic part is connected between the intake pipe and the tail filter part, the oxidation catalytic part is provided with a plurality of connection grooves and a plurality of staggered exhaust gas treatment plates, and the exhaust gas treatment plates are slidably connected to the connection grooves; The oxidation catalytic part includes a shell, one end of which is connected to the air intake pipe, and the other end of which is connected to the tail filter part, a gas channel is provided inside the connecting groove, and a plurality of the connecting grooves are divided into two groups and are arranged oppositely on both sides of the gas channel; The exhaust gas treatment plate is in the shape of a triangular prism, the bottom surface of the exhaust gas treatment plate is a right triangle, the narrower side elevation of the exhaust gas treatment plate is a connection surface, the width of the connection surface is equal to the width of the connection groove, the height of the right triangle is greater than the sum of the length of the connection groove and the width of the gas channel, and the connection surfaces of two adjacent exhaust gas treatment plates are relatively arranged on the inner side of the shell; The edge arranged opposite to the connecting surface is a connecting edge, and a sealing component is arranged inside the opening of the connecting groove for accommodating the connecting edge, and the sealing component comprises a sealing connection seat and a sealing plate, the height of the sealing connection seat is equal to the height of the connecting groove, a supporting spring is arranged inside the sealing connection seat, the sealing plate is slidably and sealingly connected to the sealing connection seat, and the sealing plate is fixedly connected to the supporting spring; An adjustment component is provided on the outside of the oxidation catalytic part, and the adjustment component includes two adjustment arms, an adjustment motor and a plurality of adjustment rods. A connecting arm is provided on the upper end of the adjustment arm, and the adjustment rod is evenly connected to the side of the adjustment arm adjacent to the outer shell, and the adjustment rod passes through the outer shell and is arranged in the connecting groove. The adjustment rod is fixedly connected to the connecting surface of the exhaust gas treatment plate, and the two adjustment arms are arranged on two opposite sides of the outer shell, and the two adjustment arms are arranged horizontally and parallelly. The adjustment motor is arranged between the two adjustment arms, and an adjustment gear is provided on the output shaft of the adjustment motor. An adjustment rack is provided on the side of the adjustment arm adjacent to the adjustment gear, and the adjustment rack is meshed and connected, and the adjustment arm and the adjustment rod are arranged horizontally and parallelly.

2. The high-efficiency automobile exhaust gas post-treatment device according to claim 1, characterized in that: The exhaust gas treatment plate comprises an oxidation catalytic plate and a particulate oxidation catalytic plate. The oxidation catalytic plate and the particulate oxidation catalytic plate have the same shape, and the oxidation catalytic plate and the particulate oxidation catalytic plate are arranged alternately.

3. The high-efficiency automobile exhaust gas post-treatment device according to claim 1, characterized in that: The pressure relief assembly includes a pressure relief barrel and a pressure relief pipe, a first solenoid valve is provided between the pressure relief barrel and the intake pipe, a second solenoid valve is connected between the pressure relief barrel and the pressure relief pipe, two connecting gas nozzles are provided at one end of the pressure relief pipe away from the pressure relief barrel, the two connecting gas nozzles are through-connected to the gas channel of the oxidation catalytic part, the connecting gas nozzles are connected between two adjacent exhaust gas treatment plates, and a third solenoid valve is provided on the pressure relief pipe between the two connecting gas nozzles.

4. A highly efficient automobile exhaust gas post-treatment device according to any one of claims 1 to 3, characterized in that: It also includes a controller, wherein a first pressure sensor is provided in the intake pipe, a second pressure sensor is provided in the pressure relief barrel, and a third pressure sensor is provided in the tail filter part. The controller is connected to the first pressure sensor, the second pressure sensor and the third pressure sensor through lines, and the controller is used to execute commands to the regulating motor, the first solenoid valve, the second solenoid valve and the third solenoid valve.

5. The high-efficiency automobile exhaust gas post-treatment device according to claim 4 is characterized in that: The tail filter part includes a filter box, a filter screen and an exhaust pipe. One side of the filter box is connected to the oxidation catalytic part. The filter screen is columnar and vertically arranged inside the filter box. One end of the exhaust pipe is connected to the bottom of the filter box. The connecting end of the exhaust pipe and the filter box is coaxial with the filter screen. The side of the filter box connected to the oxidation catalytic part is recessed downward to form an oil collecting tank, and an oil drain valve is provided at the bottom of the oil collecting tank.

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