A low-carbon emission treatment device for automobile exhaust

Abstract

The application belongs to the technical field of tail gas treatment, and specifically relates to a low-carbon emission treatment equipment for automobile tail gas, the right end of the air inlet branch pipe is connected with filter pipes on the front and back sides, the right side of the filter pipe is connected with an air outlet and air inlet pipe, the right end of the air outlet and air inlet pipe is connected with a three-way catalyst, the right end of the three-way catalyst is connected with a semi-closed air outlet pipe, the lower ends of the filter pipes on the two sides are connected with carbon collection switches, and the lower ends of the carbon collection switches are connected with carbon collection filters; the inner cavity of the filter pipe is provided with a filter screen and a carbon removal rotating shaft, the left end of the carbon removal rotating shaft penetrates through the filter screen, and a carbon scraping knife is arranged on the outer side of the carbon removal rotating shaft, the device is provided with two filter pipes, the filter pipes are provided with filter screens, particles can be adhered in advance through the filter screens, particles can be prevented from entering the three-way catalyst, and when one of the filter pipes is blocked, the device can be switched to the other filter pipe for exhaust.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tail gas treatment, in particular to a low-carbon emission treatment equipment for automobile tail gas. BACKGROUND

[0002] Automobile tail gas is waste gas generated during the use of a car, which contains more than 100 different compounds, and the pollutants in it include solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead and sulfur oxides, etc. Tail gas not only harms human health, but also has a profound impact on the environment of human life. The existing technology is to treat the automobile tail gas by a three-way catalyst to reduce the pollution of tail gas. The three-way catalyst is a honeycomb-shaped part composed of a large number of rare metals, which can greatly increase the catalytic reaction area of the three-way catalyst. It can convert the harmful gases such as carbon monoxide and hydrocarbons in the automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction.

[0003] The roads in the city are crowded, and the driving of the car will appear to start and stop, which will lead to the fuel not being able to be fully combusted. Incomplete combustion will produce carbon deposition. The three-way catalyst contains a honeycomb-shaped part, and the carbon deposition will accumulate in the honeycomb-shaped part of the three-way catalyst, which will cause the three-way catalyst to be poisoned and fail. At the same time, when the fuel quality is poor, the sulfur, phosphorus, lead in the fuel and the anti-knock agent used will be discharged with the exhaust gas after combustion. These emissions will also complex in the honeycomb-shaped part of the three-way catalyst, which will cause the three-way catalyst to fail. The failure of the three-way catalyst will cause the automobile exhaust to exceed the standard, so a filtering device is needed to filter the automobile exhaust, so as to prevent the particulate matter in the automobile exhaust from entering the three-way catalyst. SUMMARY

[0004] The purpose of the present application is to provide a low-carbon emission treatment equipment for automobile tail gas to solve the problem that the existing automobile tail gas treatment device does not filter particulate matter.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a low-carbon emission treatment equipment for automobile exhaust, comprising an air inlet branch pipe and a protective shell, the right end of the air inlet branch pipe is connected with a filter pipe on the front and back sides, the right side of the filter pipe is connected with an air outlet and air inlet pipe, the right end of the air outlet and air inlet pipe is connected with a three-way catalyst, the right end of the three-way catalyst is connected with a semi-closed air outlet pipe, the lower end of the filter pipe on both sides is connected with a carbon collection switch, and the lower end of the carbon collection switch is connected with a carbon collection filter; a filter screen and a carbon removal rotating shaft are arranged in the inner cavity of the filter pipe, the left end of the carbon removal rotating shaft penetrates through the filter screen, and the outer side of the carbon removal rotating shaft is sleeved with a carbon scraping knife, and the outer right end of the carbon removal rotating shaft is sleeved with a fan; a gas baffle is movably arranged on the inner side of the semi-closed air outlet pipe, a first push rod for pushing the gas baffle to move is arranged on the inner side of the semi-closed air outlet pipe, a return spring is arranged on the side of the gas baffle close to the first push rod, a clamping pin is further arranged on the inner side of the semi-closed air outlet pipe, a clamping hole is formed in the body of the gas baffle, the clamping pin and the clamping hole correspond to each other, and a second push rod for pushing the clamping pin to move is further arranged on the inner side of the semi-closed air outlet pipe; a gas return pipe is connected between the semi-closed air outlet pipe and the filter pipe, and a one-way valve and a pressure relief valve are arranged on the body of the gas return pipe.

[0006] Preferably, the second push rod ventilation pipe communicates with the inner cavity of the semi-closed air outlet pipe, the inner cavity of the semi-closed air outlet pipe is inlaid with a buckle sub-buckle, and the side of the clamping pin close to the buckle sub-buckle is provided with a buckle female buckle, and the buckle sub-buckle and the buckle female buckle correspond to each other.

[0007] Preferably, the air inlet branch pipe and the air outlet and air inlet pipe both comprise a fixed shell, a sealing plate and a third push rod, the third push rod and the sealing plate are both arranged on the inner side of the fixed shell, and the telescopic end of the third push rod is connected with the sealing plate.

[0008] Preferably, the inner side of the air outlet and air inlet pipe is further provided with a fourth push rod connected with the sealing plate, the fourth push rod communicates with the third push rod in the air inlet branch pipe through a pipeline, the third push rod in the air outlet and air inlet pipe communicates with the filter pipe through a pipeline, and the first push rod also communicates with the filter pipe through a pipeline.

[0009] Preferably, the carbon collection switch comprises a mounting shell, a closing plate and a fifth push rod for pushing the closing plate to move are arranged on the inner side of the mounting shell, and the fifth push rod communicates with the filter pipe through a pipeline.

[0010] Preferably, the left end of the air inlet branch pipe is connected with an air inlet connector, the right end of the semi-closed air outlet pipe is connected with an air outlet connector, the left end of the air inlet connector penetrates through the protective shell, and the right end of the air outlet connector penetrates through the protective shell.

[0011] Preferably, the protective shell comprises an upper shell, the lower side of the upper shell is detachably connected with a lower shell, and the inner side of the protective shell is further provided with heat exchange pipes.

[0012] Preferably, a limiting strip is arranged in the inner cavity of the filter pipe, a limiting net is movably arranged in the inner cavity of the filter pipe, the limiting net is clamped on the outer side of the limiting strip, a spline groove is formed in the outer side of the limiting net, and a spline shaft is arranged on the outer side of the carbon removal rotating shaft and corresponds to the spline groove.

[0013] Preferably, a swing stopping device is arranged in the inner cavity of the gas outlet and gas inlet pipe, the semi-closed gas outlet pipe and the carbon collection switch, and the swing stopping device comprises a spring sheet and a swing stopping groove.

[0014] Compared with the prior art, the beneficial effects of the present application are:

[0015] 1) The device is provided with two filter pipes, and a filter net is arranged in the filter pipe, so that the particulate matter is adhered in advance through the filter net, the particulate matter can be prevented from entering the three-way catalyst, and when one filter pipe is blocked, the exhaust gas can be switched to the other filter pipe, and the particulate matter in the blocked filter pipe is removed, so that the filter pipe is prevented from being removed for cleaning;

[0016] 2) The device is provided with a gas return pipe between the semi-closed gas outlet pipe and the filter pipe, and a one-way valve is arranged on the gas return pipe, so that when the particulate matter on the filter net is removed, the gas flow returned through the gas return pipe can blow away the particulate matter, thereby preventing the particulate matter from accumulating in the filter pipe;

[0017] 3) The device is provided with a fan in the filter pipe, the fan drives the carbon removal rotating shaft to rotate, then drives the carbon scraping knife to rotate through the carbon removal rotating shaft, the fan can be driven by the returned gas flow, the fan is driven to rotate by the exhaust gas, and the energy utilization rate can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a structural schematic view of the present application;

[0019] Figure 2 The figure is a structural schematic view of the present application from the front view;

[0020] Figure 3 The figure is a structural schematic view of the present application from the right view of the gas outlet and gas inlet pipe;

[0021] Figure 4 The figure is a structural schematic view of the present application from the left view of the gas inlet and gas outlet pipe;

[0022] Figure 5 The figure is a structural schematic view of the present application from the front view of the filter pipe;

[0023] Figure 6 This is a bottom view sectional structural diagram of the closed plate of the present invention;

[0024] Figure 7 This is a schematic diagram of the left cross-sectional structure of the semi-enclosed vent pipe of the present invention;

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the cross-sectional structure along line A;

[0026] Figure 9 This is a left-side view of the anti-sway device of the present invention.

[0027] In the diagram: 1 Protective housing, 2 Inlet connector, 3 Inlet splitter pipe, 4 Filter pipe, 5 Outlet merging pipe, 51 Fixed housing, 52 Sealing plate, 53 Push rod No. 3, 54 Push rod No. 4, 6 Three-way catalytic converter, 7 Semi-enclosed outlet pipe, 8 Outlet connector, 9 One-way valve, 10 Pressure relief valve, 11 Carbon removal shaft, 12 Carbon scraper, 13 Filter screen, 14 Limiting screen, 15 Splined shaft, 16 Fan, 17 Limiting strip, 18 Carbon collection switch, 181 Mounting housing, 182 Push rod No. 5, 183 Closing plate, 19 Carbon collection filter, 20 Heat exchanger tube, 21 Return pipe, 22 Push rod No. 1, 23 Pull-back spring, 24 Air baffle plate, 25 Limiting post, 26 Snap-on female buckle, 27 Push rod No. 2, 28 Anti-sway device, 281 Anti-sway groove, 282 Spring plate. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] Example:

[0031] Please see Figures 1-9The application provides a technical scheme: a low-carbon emission treatment equipment for automobile exhaust, which comprises an air inlet branch pipe 3 and a protective shell 1, filter pipes 4 are arranged on the front and back sides of the right end of the air inlet branch pipe 3, the number of the filter pipes 4 is two, the air inlet branch pipe 3 is used for adjusting the opening and closing of the two filter pipes 4, only one filter pipe 4 is in normal ventilation at the same time, when one of them is blocked, the other one can continue to ventilate, the right side of the filter pipe 4 is connected with an air outlet combination pipe 5, the air outlet combination pipe 5 is also used for adjusting the opening and closing of the two filter pipes 4, the air inlet branch pipe 3 and the air outlet combination pipe 5 are synchronously operated, the right end of the air outlet combination pipe 5 is connected with a three-way catalyst 6, the right end of the three-way catalyst 6 is connected with a semi-closed air outlet pipe 7, the semi-closed air outlet pipe 7 is used for reducing the air outlet, so that the air pressure in the semi-closed air outlet pipe 7 is increased, the lower ends of the two filter pipes 4 are connected with carbon collection switches 18, the lower ends of the carbon collection switches 18 are connected with carbon collection filters 19, after the carbon collection switches 18 are opened, the particles scraped off can be blown into the carbon collection filters 19 by the backflow gas, the lower end of the carbon collection filter 19 extends out of the protective shell 1, the carbon collection filter 19 is detachably connected with the carbon collection switch 18, so that the carbon collection filter 19 can be conveniently taken out and the particles in the carbon collection filter 19 can be poured out;

[0032] The filter pipes 4 are provided with filter screens 13 and carbon removal rotating shafts 11 in the cavities, the filter screens 13 are used for filtering the particles in the exhaust gas, so that the particles can be prevented from entering the three-way catalyst 6, the left ends of the carbon removal rotating shafts 11 penetrate through the filter screens 13 and the outer sides of the carbon removal rotating shafts 11 are provided with carbon scraping knives 12, the carbon scraping knives 12 are arranged on the left sides of the filter screens 13 and are attached to the filter screens 13, the carbon scraping knives 12 can scrape the particles on the filter screens 13 by rotating, the outer right ends of the carbon removal rotating shafts 11 are provided with fans 16, the fans 16 are arranged on the right sides of the filter screens 13, when the backflow gas blows into the filter pipes 4, the gas blows the fans 16 to rotate, the fans 16 drive the carbon removal rotating shafts 11 to rotate, the carbon removal rotating shafts 11 rotate to scrape the particles on the filter screens 13;

[0033] An air baffle 24 is movably installed on the inner side of the semi-enclosed vent pipe 7. A first push rod 22 is installed on the inner side of the semi-enclosed vent pipe 7 to push the air baffle 24 to move. When the extension rod of the first push rod 22 extends, it pushes the air baffle 24 to move. The movement of the air baffle 24 can reduce the air outlet of the semi-enclosed vent pipe 7, thereby increasing the air pressure inside the semi-enclosed vent pipe 7. A return spring 23 is provided on the side of the air baffle 24 near the first push rod 22. The other end of the return spring 23 is connected to the semi-enclosed vent pipe 7. The inner wall of the closed air outlet pipe 7 is fitted. After the telescopic rod of the first push rod 22 retracts, the return spring 23 can pull the baffle plate 24 back to its original position. The inner side of the semi-closed air outlet pipe 7 is also equipped with a locking pin 25. The body of the baffle plate 24 has a locking hole. The locking pin 25 corresponds to the locking hole. The inner side of the semi-closed air outlet pipe 7 is also equipped with a second push rod 27 that pushes the locking pin 25 to move. The second push rod 27 can push the locking pin 25 into the locking hole, thereby preventing the baffle plate 24 from moving upward.

[0034] A return pipe 21 connects the semi-closed outlet pipe 7 and the filter pipe 4. The return pipe 21 is equipped with a one-way valve 9 and a pressure relief valve 10. When the air pressure in the semi-closed outlet pipe 7 increases, the air pressure in one of the two filter pipes 4 that is open to air is equal to the air pressure in the semi-closed outlet pipe 7, while the air pressure in the other filter pipe that is not open to air is lower than the air pressure in the semi-closed outlet pipe 7. At this time, the gas in the semi-closed outlet pipe 7 can flow back to the low-pressure filter pipe 4 through the return pipe 21. The presence of the one-way valve 9 prevents the gas in the filter pipe 4 from flowing into the semi-closed outlet pipe 7 through the return pipe 21. The pressure relief valve 10 ensures that the airflow can enter the filter pipe 4 only when the air pressure in the semi-closed outlet pipe 7 is sufficient.

[0035] The second push rod 27 connects to the inner cavity of the ventilation duct and the semi-enclosed air outlet pipe 7. When the air pressure inside the semi-enclosed air outlet pipe 7 increases, the gas pressure pushes the extension rod of the second push rod 27 to extend. When the gas pressure inside the semi-enclosed air outlet pipe 7 returns to normal, the extension rod of the second push rod 27 automatically returns to its original position. A snap fastener 26 is embedded in the inner cavity of the semi-enclosed air outlet pipe 7. A snap fastener nut is provided on the side of the locking pin 25 near the snap fastener 26. The snap fastener 26 corresponds to the snap fastener nut. When the locking pin 25 moves the snap fastener nut and snap fastener 26... After buckle 26 is engaged, the engaging force between buckle 26 and buckle 25 will prevent the locking pin 25 from returning to its original position. Only when push rod 27 generates a large pulling force to force buckle 26 to separate from buckle 25 can push rod 27 drive the locking pin 25 to return to its original position. As the blocked filter pipe 4 is gradually cleared, the air pressure in the semi-enclosed air outlet pipe 7 will also gradually decrease. At this time, push rod 27 will tend to drive the locking pin 25 to return to its original position. However, by cooperating with buckle 26 and buckle 25, the locking pin 25 can be prevented from returning to its original position prematurely.

[0036] The air inlet branch pipe 3 and the air outlet branch pipe 5 each comprise a fixed shell 51, a sealing plate 52 and a third push rod 53, the third push rod 53 and the sealing plate 52 are each mounted on the inner side of the fixed shell 51, the telescopic end of the third push rod 53 is connected with the sealing plate 52, the inner side of the air outlet branch pipe 5 is further provided with a fourth push rod 54 connected with the sealing plate 52, the fourth push rod 54 is communicated with the third push rod 53 in the air inlet branch pipe 3 through a pipeline, the third push rod 53 in the air outlet branch pipe 5 is communicated with the filter pipe 4 through a pipeline, and the communication point is located on the left side of the filter screen 13. When the filter screen 13 is blocked, the air pressure on the left side of the filter screen 13 increases, at this time, the air pressure drives the third push rod 53 in the air outlet branch pipe 5 to start, the telescopic rod of the third push rod 53 drives the sealing plate 52 to move, and the sealing plate 52 blocks the blocked filter pipe 4. When the sealing plate 52 moves, the telescopic rod of the fourth push rod 54 is driven to shrink, the telescopic rod of the fourth push rod 54 generates air pressure by working, drives the third push rod 53 in the air inlet branch pipe 3 to work, and the third push rod 53 in the air inlet branch pipe 3 also drives the sealing plate 52 to move to seal the blocked filter pipe 4. The first push rod 22 is also communicated with the filter pipe 4 through a pipeline, and the communication point is also located on the left side of the filter screen 13. When the air pressure in the blocked filter pipe 4 increases, the air pressure can drive the first push rod 22 to move by working.

[0037] The carbon collection switch 18 comprises a mounting shell 181, a closing plate 183 mounted on the inner side of the mounting shell 181 and a fifth push rod 182 for driving the closing plate 183 to move, the fifth push rod 182 is communicated with the filter pipe 4 through a pipeline, and the communication point is located on the right side of the filter screen 13. After the filter screen 13 is blocked, when the gas flows back, it flows from right to left, at this time, the air pressure on the right side of the filter screen 13 is higher than that on the left side, the air pressure on the right side is high, which drives the telescopic rod of the fifth push rod 182 to extend, the fifth push rod 182 drives the closing plate 183 to move left, and the closing plate 183 moves left to open the carbon collection switch 18. When the air pressures on the two sides of the filter screen 13 are the same, the telescopic rod of the fifth push rod 182 automatically returns to the original position, and drives the closing plate 183 to return to the original position, thereby closing the carbon collection switch 18.

[0038] The left end of the air inlet branch pipe 3 is connected with an air inlet connector 2, the right end of the semi-closed air outlet pipe 7 is connected with an air outlet connector 8, the left end of the air inlet connector 2 penetrates through the protective shell 1, the right end of the air outlet connector 8 penetrates through the protective shell 1, and the protection of the protective shell 1 can avoid the pipelines in the equipment from being touched, thereby protecting the pipelines. The protective shell 1 comprises an upper shell, a lower shell detachably connected to the lower side of the upper shell, and a heat exchange pipe 20 arranged on the inner side of the protective shell 1. By introducing cooling liquid into the heat exchange pipe 20, the space inside the protective shell 1 can be cooled.

[0039] The inner cavity of the filter pipe 4 is provided with a limiting strip 17, and the inner cavity of the filter pipe 4 is movably provided with a limiting net 14, the limiting net 14 is clamped on the outer side of the limiting strip 17, through the clamping of the limiting strip 17, the limiting net 14 can only move left and right, and cannot rotate, the outer side of the limiting net 14 is provided with a spline groove, the outer side of the carbon removal rotating shaft 11 is provided with a spline shaft 15, the spline shaft 15 corresponds to the spline groove, the airflow can pass through the limiting net 14, when the airflow flows from left to right, the airflow blows the limiting net 14 to move right, the spline groove in the limiting net 14 cooperates with the spline shaft 15, and then the limiting net 14 limits the rotation of the carbon removal rotating shaft 11, when the airflow flows from right to left, the airflow blows the limiting net 14 to move left, at this time, the spline groove in the limiting net 14 is separated from the spline shaft 15, the fan 16 can drive the carbon removal rotating shaft 11 to rotate, the fan 16 will not drive the carbon scraping knife 12 to work in normal exhaust, so that the particulate matter can be normally adhered to the surface of the filter screen 13, and the carbon scraping knife 12 works in normal exhaust, which will cause the particulate matter to be unable to be normally adhered, and the smaller particles will pass through the filter screen 13 when unable to be adhered.

[0040] The inner cavities of the air outlet and air inlet pipe 5, the semi-closed air outlet pipe 7 and the carbon collection switch 18 are provided with anti-shaking devices 28, the anti-shaking devices 28 include spring sheets 282 and anti-shaking grooves 281, the anti-shaking grooves 281 correspond to the spring sheets 282, the anti-shaking grooves 281 can be arranged on the telescopic rods of the first push rod 22, the third push rod 53 and the fifth push rod 182, or arranged on the bodies of the sealing plate 52, the closing plate 183 and the air blocking plate 24, through the clamping of the spring sheets 282 in the anti-shaking grooves 281, the sealing plate 52, the closing plate 183 and the air blocking plate 24 can be prevented from being driven, wherein the sealing plate 52 and the closing plate 183 are driven only when the air pressure difference reaches a certain value, and the air blocking plate 24 is driven only when the air pressure reaches a certain value, at this time, the generated force can directly push the sealing plate 52, the closing plate 183 and the air blocking plate 24 to the limit position.

[0041] Working principle: in normal exhaust, the tail gas passes through the air inlet connector 2, the air inlet branch pipe 3, one of the filter pipes 4, the air outlet and air inlet pipe 5, the three-way catalyst 6 and the semi-closed air outlet pipe 7 in sequence, and is discharged from the air outlet connector 8, wherein the filter screen 13 in the filter pipe 4 can adhere the particulate matter, thereby avoiding the particulate matter from entering the three-way catalyst 6;

[0042] When the filter screen 13 in the ventilation filter pipe 4 is blocked, the air pressure on the left side of the filter screen 13 begins to be higher than that on the right side of the filter screen 13, at this time, the air pressure drives the third push rod 53 in the air outlet and air inlet pipe 5 to work, the third push rod 53 drives the sealing plate 52 to close the right side of the ventilation filter pipe 4, and at the same time, the other filter pipe 4 is opened on the right side, when the sealing plate 52 in the air outlet and air inlet pipe 5 moves, the fourth push rod 54 is driven to work, the fourth push rod 54 drives the third push rod 53 in the air inlet and air outlet pipe 3 to work through the air pressure, and then the sealing plate 52 closes the left side of the ventilation filter pipe 4, and at the same time, the other filter pipe 4 is opened on the left side;

[0043] The air pressure in the blocked filter pipe 4 rises, which drives the telescopic rod of the first push rod 22 to extend, the first push rod 22 drives the air baffle 24 to move, the air baffle 24 reduces the air outlet of the semi-closed air outlet pipe 7, the air pressure in the semi-closed air outlet pipe 7 begins to rise due to the reduced air outlet, and at this time, the air pressure in the ventilation filter pipe 4 is equal to that in the semi-closed air outlet pipe 7, so part of the gas in the semi-closed air outlet pipe 7 enters the blocked filter pipe 4 through the air return pipe 21, as the blocked filter pipe 4 is sealed, the gas on the left side of the filter screen 13 slowly enters the right side, at this time, the air pressure in the filter pipe 4 decreases, the telescopic rod of the first push rod 22 begins to return to the original position, and the air pressure in the semi-closed air outlet pipe 7 increases, so that the telescopic rod of the second push rod 27 extends, the second push rod 27 drives the locking pin 25 to insert into the locking hole of the air baffle 24, thereby preventing the air baffle 24 from returning to the original position;

[0044] At this time, the gas flows into the right side of the blocked filter pipe 4 along the air return pipe 21, and the gas flows from right to left in the filter pipe 4, due to the blockage of the filter screen 13, the air pressure on the right side of the filter screen 13 begins to rise, the air pressure drives the closing plate 183 to move left through the fifth push rod 182, at this time, the carbon collection switch 18 is opened, the gas begins to be discharged through the carbon collection switch 18, the left flowing gas drives the limiting screen 14 to move left, the limiting screen 14 moves left to separate the spline groove from the spline shaft 15, the gas begins to drive the fan 16 to rotate, the fan 16 drives the carbon removal rotating shaft 11 to rotate, the carbon removal rotating shaft 11 drives the carbon scraping knife 12 to rotate, the carbon scraping knife 12 removes the particulate matter adhered to the filter screen 13 through rotation, and at the same time, the left flowing gas can also blow away the scraped particulate matter;

[0045] When the filter screen 13 in the blocked filter pipe 4 can be normally ventilated, the air pressure in the semi-closed air outlet pipe 7 decreases to the normal value, at this time, the first push rod 22 drives the locking pin 25 to return to the original position, and then the return spring 23 drives the air baffle to return to the original position, at the same time, the air pressure on both sides of the filter screen 13 returns to the normal value, the fifth push rod 182 drives the closing plate 183 to return to the original position, thereby closing the carbon collection switch 18.

[0046] The foregoing illustrates and describes embodiments of the present application. However, it is to be understood that the application is not limited to the above-described embodiments, and that various changes and modifications can be suggested to one skilled in the art. It is intended that the present application encompass any and all such changes and modifications without departing from the spirit or scope of the underlying principles of the application. In addition, it should be understood that the figures are not necessarily drawn to scale and that, where appropriate, reference numerals have been maintained from one figure to another and from one embodiment to another in order to illustrate similar constructions.

[0047] While the application has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, since the scope of the application is indicated by the appended claims rather than by the foregoing description, and all changes and modifications that come within the meaning of the claims are desired to be embraced therein.

Claims

1. A low-carbon emission treatment device for automobile exhaust, comprising an intake manifold (3) and a protective housing (1), characterized in that: The intake manifold (3) is connected to filter pipes (4) on both the front and rear sides of its right end. The filter pipe (4) is connected to an exhaust manifold (5) on its right side. The exhaust manifold (5) is connected to a three-way catalytic converter (6) on its right end. The three-way catalytic converter (6) is connected to a semi-closed exhaust manifold (7) on its right end. Carbon collection switches (18) are connected to the lower ends of both filter pipes (4). Carbon collection filters (19) are connected to the lower ends of the carbon collection switches (18). A filter screen (13) and a carbon removal shaft (11) are installed in the inner cavity of the filter pipe (4). The carbon removal shaft (11) has a carbon scraper (12) sleeved on its left side through the filter screen (13). A fan (16) is sleeved on the right side of the carbon removal shaft (11). The semi-closed exhaust manifold (7) is connected to a filter screen (4) on its right side. 7) is provided with an air baffle (24) on its inner side. The semi-enclosed air outlet pipe (7) is provided with a first push rod (22) that pushes the air baffle (24) to move. The air baffle (24) is provided with a pull spring (23) on the side near the first push rod (22). The semi-enclosed air outlet pipe (7) is also provided with a locking pin (25). The air baffle (24) is provided with a locking hole. The locking pin (25) is aligned with the locking hole. The semi-enclosed air outlet pipe (7) is also provided with a second push rod (27) that pushes the locking pin (25) to move. The semi-enclosed air outlet pipe (7) is connected to the filter pipe (4) with a return air pipe (21). The return air pipe (21) is provided with a one-way valve (9) and a pressure relief valve (10) on its body. The ventilation duct of the second push rod (27) is connected to the inner cavity of the semi-enclosed air outlet pipe (7). The inner cavity of the semi-enclosed air outlet pipe (7) is inlaid with a buckle (26). The locking pin (25) is provided with a buckle female on the side near the buckle (26). The buckle (26) and the buckle female correspond to each other. The air intake manifold (3) and the air outlet manifold (5) both include a fixed housing (51), a sealing plate (52) and a third push rod (53). The third push rod (53) and the sealing plate (52) are both installed on the inside of the fixed housing (51). The telescopic end of the third push rod (53) is connected to the sealing plate (52). The inner side of the outlet gas mixing pipe (5) is also provided with a fourth push rod (54) connected to the sealing plate (52). The fourth push rod (54) is connected to the third push rod (53) in the inlet gas distribution pipe (3) through a pipe. The third push rod (53) in the outlet gas mixing pipe (5) is connected to the filter pipe (4) through a pipe. The first push rod (22) is also connected to the filter pipe (4) through a pipe.

2. The low-carbon emission treatment device for automobile exhaust according to claim 1, characterized in that: The carbon collection switch (18) includes a mounting housing (181), on the inner side of which a closing plate (183) and a push rod (182) for pushing the closing plate (183) to move are installed. The push rod (182) is connected to the filter tube (4) through a pipe.

3. The low-carbon emission treatment device for automobile exhaust according to claim 1, characterized in that: The left end of the air intake manifold (3) is connected to an air intake connector (2), and the right end of the semi-enclosed air outlet manifold (7) is connected to an air outlet connector (8). The left end of the air intake connector (2) penetrates the protective shell (1), and the right end of the air outlet connector (8) penetrates the protective shell (1).

4. The low-carbon emission treatment device for automobile exhaust according to claim 1, characterized in that: The protective housing (1) includes an upper housing, and a lower housing is detachably connected to the lower side of the upper housing. A heat exchange tube (20) is also provided on the inner side of the protective housing (1).

5. A low-carbon emission treatment device for automobile exhaust according to claim 1, characterized in that: A limiting strip (17) is provided in the inner cavity of the filter tube (4), and a limiting net (14) is movably installed in the inner cavity of the filter tube (4). The limiting net (14) is locked on the outside of the limiting strip (17). A spline groove is provided on the outside of the limiting net (14). A spline shaft (15) is provided on the outside of the carbon removal shaft (11). The spline shaft (15) corresponds to the spline groove.

6. A low-carbon emission treatment device for automobile exhaust according to claim 1, characterized in that: The inner cavities of the air outlet pipe (5), the semi-closed air outlet pipe (7), and the carbon collection switch (18) are all equipped with anti-sway devices (28). The anti-sway device (28) includes a spring plate (282) and an anti-sway groove (281), and the anti-sway groove (281) corresponds to the spring plate (282).

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