Engine tail gas treatment device

Abstract

The invention relates to the technical field of engine tail gas treatment, and discloses an engine tail gas treatment device which comprises a three-way catalyst, one end of the three-way catalyst is slidably connected with a connecting pipe, the middle of the connecting pipe is provided with a fixing seat, and the top of the side, away from the three-way catalyst, of the connecting pipe is fixedly provided with the fixing seat; according to the engine tail gas treatment device, a tail gas pipe of a traditional three-way catalytic converter is replaced with the connecting pipe, after condensate water is generated in the three-way catalytic converter, the condensate water flows back through the return stroke of the air cylinder, and the condensate water flows back through the air cylinder. The distance between the air cylinder transmission sliding seat and the fixed seat is shortened, the sliding seat drives the connecting pipe to extrude, the section of the pipe wall is reduced, then the flow speed of internal tail gas is increased, the tail gas together with condensate water is discharged into the treatment box and is absorbed by solid amine resin filler, and the influence of backflow of the condensate water and the like on the three-way catalyst is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of engine exhaust gas treatment, in particular to an engine exhaust gas treatment device. Background Art

[0002] With the continuous development of science and technology, motor vehicles such as cars or buses have gradually become people's means of transportation. The fuels of motor vehicles include gasoline, diesel, etc. During the combustion of fuel, exhaust gas is produced and discharged. The bottom of many motor vehicles is usually equipped with a three-way catalytic converter to purify the exhaust gas and convert the carbon monoxide, hydrocarbons and nitrogen oxides in the exhaust gas produced by the combustion of fuel into harmless liquefied soil, water and nitrogen.

[0003] After the conversion is completed, the carbon dioxide it emits is one of the problems that cause the urban greenhouse effect. Therefore, existing motor vehicles are often equipped with on-board carbon capture equipment on the basis of the three-way catalytic converter to reduce carbon dioxide emissions. However, when the motor vehicle is cold-started or in winter, condensed water is often produced in the exhaust pipe, and the condensed water will cause abnormalities in the tailpipe, such as corrosion, muffler failure, water backflow and other risks. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides an engine exhaust treatment device, which solves the problems raised in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: an engine exhaust treatment device, comprising a three-way catalytic converter, one end of the three-way catalytic converter being slidably connected to a connecting pipe;

[0006] The middle part of the connecting pipe is provided with a fixing seat fixed on the top of the connecting pipe away from the three-way catalytic converter, a cylinder is fixed inside the fixing seat close to the three-way catalytic converter, a sliding seat is fixed on the top of the connecting pipe close to the three-way catalytic converter, the output shaft of the cylinder is fixed to the sliding seat, and sliding grooves are provided on both sides of the top of the sliding seat, and the internal sliding connection of the sliding groove is limited by a bolt;

[0007] A treatment box is fixed to the outside of one end of the connecting pipe away from the three-way catalytic converter, and a receiving assembly that can be quickly disassembled is provided in the treatment box;

[0008] The receiving component is provided with a capture component for capturing carbon dioxide.

[0009] Optionally, a positioning block is fixed to the inner wall of one side of the processing box, a gas storage tank is clamped on the outside of the positioning block, and the gas storage tank is slidably connected to the processing box, a valve core is fixed inside the gas storage tank, and an exhaust groove is opened on the side of the processing box away from the positioning block.

[0010] Optionally, the receiving component includes a clamping plate which is slidably connected to the bottom of the processing box. Sliding grooves are formed on both sides of the middle position of the clamping plate. Receiving grooves are formed on both sides of the clamping plate, and the sliding grooves and the receiving grooves are communicated. A lever is slidably connected inside the sliding groove;

[0011] The horizontal part of the lever is slidably connected to the receiving groove. A positioning plate is fixed at one end of the horizontal part of the lever, and the positioning plate is slidably connected to the receiving groove. A first spring is fixed on the side of the vertical part of the lever away from the positioning plate, and the first spring is fixed to the inner wall of the sliding groove.

[0012] Optionally, the trapping component includes a solid amine resin filler which is fixed on the top of the clamping plate. A heat exchange sleeve is fixed outside the solid amine resin filler. A gas collecting box is fixed on the top of the clamping plate, and the gas collecting box covers the outside of the heat exchange sleeve and the solid amine resin filler. A through port is provided on one side of the gas collecting box close to the connecting pipe, and the gas collecting box is communicated with the connecting pipe through the through port. An exhaust pipe is fixed on the side of the gas collecting box away from the connecting pipe, and the exhaust pipe is communicated with the gas collecting box;

[0013] A plate heat exchanger is fixed on one side of the top of the clamping plate where the solid amine resin filler is located. A heat source inlet pipe and a heat source outlet pipe are respectively fixed on both sides of the bottom of the plate heat exchanger, and both the heat source inlet pipe and the heat source outlet pipe pass through the clamping plate and are communicated with the cooling system of the engine. An inlet liquid pipeline is fixed on one side of the surface of the plate heat exchanger close to the heat source inlet pipe, and an outlet liquid pipeline is fixed on one side of the surface of the plate heat exchanger close to the heat source outlet pipe. Both the inlet liquid pipeline and the outlet liquid pipeline pass through the gas collecting box and are communicated with the heat exchange sleeve.

[0014] Optionally, a gas-liquid separator is fixed on one side of the top of the clamping plate away from the solid amine resin filler. The intake pipe of the gas-liquid separator is communicated with the gas collecting box. An air supply pipe is fixed on the top of the gas-liquid separator, and one end of the air supply pipe away from the gas-liquid separator is fixed with a micro-compressor. A water discharge pipe is provided at the bottom of the air supply pipe, and the water discharge pipe passes through the clamping plate.

[0015] Optionally, a hose is fixed at the air outlet of the micro-compressor. One end of the hose away from the micro-compressor is fixed with an inflation head, and the inflation head is communicated with the valve core.

[0016] Optionally, a dial plate is fixed on the surface of the hose. An adjusting screw is rotatably connected to the inner wall of one side of the exhaust groove. One end of the dial plate is threadedly connected to the adjusting screw, and the end of the dial plate close to the exhaust groove is slidably connected to the exhaust groove.

[0017] Optionally, connecting rods are fixed at both ends of the top of the sliding seat close to one side of the cylinder, the connecting rods pass through the processing box and are slidably connected to the processing box, a locking screw is fixed to one end of the connecting rod passing through the processing box, a grille plate is slidably connected to the outside of the locking screw, and diverter strips are fixed to the upper and lower parts of the grille plate close to one side of the processing box.

[0018] Optionally, an aluminum sheet is slidably connected to the inside of the top of the sliding seat near one side of the cylinder, the aluminum sheet passes through the connecting pipe and is slidably connected to the connecting pipe, a push plate is fixed to one end of the aluminum sheet near the sliding seat, a second spring is fixed to the upper and lower sides of the push plate away from the limiting bolt, the second spring is fixed to the inner wall of the slide groove, and the push plate is slidably connected to the slide groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The exhaust gas treatment device of the engine replaces the exhaust pipe of the traditional three-way catalytic converter with a connecting pipe. After condensed water is generated in the three-way catalytic converter, the return stroke of the cylinder shortens the distance between the cylinder transmission sliding seat and the fixed seat, so that the sliding seat drives the connecting pipe to be squeezed, so that the cross-section of the pipe wall is reduced, and then the internal exhaust gas flow rate is increased, so that the exhaust gas entrains the condensed water and is discharged into the interior of the treatment box and absorbed by the solid amine resin filler, thereby avoiding the influence of the condensed water backflow on the three-way catalytic converter.

[0021] 2. The engine exhaust treatment device controls the emission speed of the connecting pipe and the three-way catalytic converter exhaust gas by stretching the connecting pipe and, further, controls the length of time the exhaust gas stays in the three-way catalytic converter, thereby increasing the exhaust gas purification efficiency. At the same time, as the distance between the sliding seat and the fixed seat changes, the transmission aluminum sheet expands and contracts inside the connecting pipe. When the area of the aluminum sheet in the connecting pipe increases, the flow rate of the exhaust gas in the connecting pipe is further reduced, further extending the length of time the exhaust gas is purified in the three-way catalytic converter, thereby improving the exhaust gas purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a bottom view of the structure of the present invention;

[0024] Figure 3 It is a cross-sectional view of the structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the capture component and the receiving component of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the processing box of the present invention;

[0027] Figure 6Structural sectional view of the processing box of the present invention;

[0028] Figure 7 Structural sectional view of the clamping plate of the present invention;

[0029] Figure 8 Schematic structural diagram of the connecting pipe of the present invention;

[0030] Figure 9 Structural sectional view of the connecting pipe of the present invention;

[0031] Figure 10 Structural sectional view of the gas storage tank of the present invention.

[0032] In the figure: 1, three-way catalytic converter; 11, connecting pipe; 2, fixed seat; 21, cylinder; 22, sliding seat; 23, sliding groove; 24, limit bolt; 3, processing box; 31, positioning block; 32, gas storage tank; 321, valve core; 33, exhaust groove; 4, clamping plate; 41, sliding groove; 42, storage groove; 43, lever; 44, positioning plate; 45, first spring; 5, solid amine resin filler; 51, heat exchange sleeve; 52, gas gathering box; 53, exhaust pipe; 54, plate heat exchanger; 55, heat source inlet pipe; 56, heat source outlet pipe; 57, liquid inlet pipeline; 58, liquid outlet pipeline; 6, gas-liquid separator; 61, air supply pipe; 62, micro-compressor; 63, hose; 64, air injection head; 7, dial plate; 71, adjusting screw; 8, connecting rod; 81, locking screw; 82, grille plate; 83, flow dividing strip; 9, aluminum sheet; 91, push plate; 92, second spring. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1:

[0035] Please refer to Figures 1-10 , an engine exhaust gas treatment device, including a three-way catalytic converter 1, one end of the three-way catalytic converter 1 is slidably connected to a connecting pipe 11, the middle of the connecting pipe 11 is provided with 12, the top of the side of the connecting pipe 11 away from the three-way catalytic converter 1 is fixed with a fixed seat 2, the inside of the fixed seat 2 close to the three-way catalytic converter 1 is fixed with a cylinder 21, the top of the side of the connecting pipe 11 close to the three-way catalytic converter 1 is fixed with a sliding seat 22, the output shaft of the cylinder 21 is fixed to the sliding seat 22, and both sides of the top of the sliding seat 22 are provided with sliding grooves 23, and a limit bolt 24 is slidably connected inside the sliding grooves 23;

[0036] A processing box 3 is fixedly arranged outside one end of the connecting pipe 11 far away from the three-way catalytic converter 1. A detachable receiving assembly is arranged in the processing box 3, and a trapping assembly for carbon dioxide trapping is arranged on the receiving assembly;

[0037] A positioning block 31 is fixedly arranged on the inner wall of one side of the processing box 3. An air storage tank 32 is clamped outside the positioning block 31, and the air storage tank 32 is slidably connected with the processing box 3. A valve core 321 is fixedly arranged inside the air storage tank 32. An exhaust groove 33 is arranged on one side of the processing box 3 far away from the positioning block 31. The receiving assembly includes a clamping plate 4. The clamping plate 4 is slidably connected with the bottom of the processing box 3. Sliding grooves 41 are arranged on both sides of the middle position of the clamping plate 4. Receiving grooves 42 are arranged on both sides of the clamping plate 4, and the sliding grooves 41 are communicated with the receiving grooves 42. A shifting rod 43 is slidably connected inside the sliding groove 41;

[0038] The horizontal part of the shifting rod 43 is slidably connected with the receiving groove 42. A positioning plate 44 is fixedly arranged at one end of the horizontal part of the shifting rod 43. The positioning plate 44 is slidably connected with the receiving groove 42. A first spring 45 is fixedly arranged on the side of the vertical part of the shifting rod 43 far away from the positioning plate 44. The first spring 45 is fixedly connected with the inner wall of the sliding groove 41. The trapping assembly includes a solid amine resin filler 5. The solid amine resin filler 5 is fixedly arranged on the top of the clamping plate 4. A heat exchange sleeve 51 is fixedly arranged outside the solid amine resin filler 5. An air collecting box 52 is fixedly arranged on the top of the clamping plate 4. The air collecting box 52 covers the heat exchange sleeve 51 and the solid amine resin filler 5. A through port is arranged on one side of the air collecting box 52 close to the connecting pipe 11, and the air collecting box 52 is communicated with the connecting pipe 11 through the through port. An exhaust pipe 53 is fixedly arranged on one side of the air collecting box 52 far away from the connecting pipe 11. The exhaust pipe 53 is communicated with the air collecting box 52;

[0039] A plate heat exchanger 54 is fixedly arranged on one side of the top of the clamping plate 4 where the solid amine resin filler 5 is located. A heat source inlet pipe 55 and a heat source outlet pipe 56 are respectively fixedly arranged on both sides of the bottom of the plate heat exchanger 54, and both the heat source inlet pipe 55 and the heat source outlet pipe 56 pass through the clamping plate 4 and are communicated with the cooling system of the engine. An inlet liquid pipeline 57 is fixedly arranged on one side of the surface of the plate heat exchanger 54 close to the heat source inlet pipe 55. An outlet liquid pipeline 58 is fixedly arranged on one side of the surface of the plate heat exchanger 54 close to the heat source outlet pipe 56. Both the inlet liquid pipeline 57 and the outlet liquid pipeline 58 pass through the air collecting box 52 and are communicated with the heat exchange sleeve 51;

[0040] During the specific operation process, first, one end of the connecting pipe 11 is inserted into the inside of the three-way catalytic converter 1, so that the three-way catalytic converter 1 is communicated with the connecting pipe 11. Then, the fixing seat 2 is fixed to the bottom of the vehicle through bolts. The limit bolt 24 passes through the sliding groove 23 and is fixed to the bottom of the vehicle. Then, the processing box 3 is fixed to the bottom of the vehicle through bolts. Thus, the whole invention is fixed to the bottom of the vehicle and is communicated with the three-way catalytic converter 1;

[0041] After the vehicle starts, the exhaust gas emitted by the engine first passes through the three-way catalytic converter 1 for purification, and the purified exhaust gas is discharged into the interior of the connecting pipe 11, so that the exhaust gas is discharged into the interior of the air collecting box 52 through the connecting pipe 11. When the exhaust gas enters the interior of the air collecting box 52, the carbon dioxide in the exhaust gas passes through the heat exchange sleeve 51 and the solid amine resin filler 5. When the carbon dioxide passes through the solid amine resin filler 5, it is adsorbed by the solid amine resin filler 5, while the remaining gases in the exhaust gas, etc., are discharged into the interior of the treatment box 3 through the exhaust pipe 53 and discharged into the air through the exhaust slot 33, thereby reducing the carbon dioxide emitted into the atmosphere when the motor vehicle is running, playing a role in carbon dioxide emission reduction and environmental protection;

[0042] Specifically, during the starting process of the motor vehicle, after the condensed water in the three-way catalytic converter 1 is generated, it enters the interior of the connecting pipe 11 under the entrainment of the exhaust gas. At this time, the cylinder 21 is started through the controller, so that the cylinder 21 returns. During the return process of the cylinder 21, the sliding seat 22 is pulled to move towards the fixed seat 2, and then the sliding seat 22 drives the part of the connecting pipe 11 below it to move synchronously. Since both sides of the connecting pipe 11 are respectively located below the fixed seat 2 and the sliding seat 22, when the fixed seat 2 does not move and the sliding seat 22 drives part of the connecting pipe 11 to move towards the sliding seat 22, the connecting pipe 11 drives 12 to contract, so that the cross-sectional diameter of 12 decreases, and thus the flow rate of the exhaust gas in 12 increases;

[0043] As the flow rate of the exhaust gas in 12 increases, the pressure near the three-way catalytic converter 1 in the connecting pipe 11 also increases, that is, when the exhaust gas in the connecting pipe 11 flows in 12, the pressure of entraining the condensed water increases, thereby playing a role in pumping out the condensed water and making the condensed water flow towards the interior of the treatment box 3;

[0044] Compared with the exhaust pipe connected in the traditional three-way catalytic converter 1, the connecting pipe 11 of the present invention replaces the exhaust pipe and does not retain condensed water. Under the action of the contraction of 12 and the connecting pipe 11, the condensed water is pumped into the interior of the treatment box 3, and through the connecting pipe 11 and the treatment box 3, the condensed water enters the interior of the solid amine resin filler 5 and is absorbed by the solid amine resin filler 5, thereby avoiding the influence of the condensed water on the connecting pipe 11 and the three-way catalytic converter 1, and also avoiding the risk of condensed water backflow, improving the service life of the three-way catalytic converter 1 and the connecting pipe 11, indirectly improving the working cycle of the three-way catalytic converter 1 for treating the engine exhaust gas, and reducing the maintenance cost of the three-way catalytic converter 1;

[0045] Furthermore, when the vehicle is cold-started or in winter and the temperature of the three-way catalytic converter 1 does not reach the effective working temperature, the efficiency of purifying the engine exhaust gas will decrease, and some exhaust gas will be directly discharged to the outside before purification;

[0046] Therefore, during the cold start of a motor vehicle or in winter, the controller controls the cylinder 21 to eject, causing the cylinder 21 to drive the sliding seat 22 to move towards the direction of the three-way catalytic converter 1. As a result, the connecting pipes 11 and 12 are stretched and straightened. When the diameter of 12 is stretched to be the same as that of the connecting pipe 11, the flow rate of the exhaust gas in the three-way catalytic converter 1 and the connecting pipe 11 can be reduced, allowing the exhaust gas to stay in the three-way catalytic converter 1 for a longer time. Consequently, the time for the three-way catalytic converter 1 to purify the exhaust gas is increased, thereby reducing the probability of the exhaust gas being directly emitted without purification and further improving the efficiency of the three-way catalytic converter 1 in purifying the exhaust gas;

[0047] Furthermore, when carbon dioxide is adsorbed onto the solid amine resin filler 5 and the vehicle stops or is idling at this time, the controller can start the plate heat exchanger 54. After the coolant in the engine cooling system absorbs the heat of the engine, it enters the interior of the plate heat exchanger 54 through the heat source inlet pipe 55 and then enters the interior of the heat exchange sleeve 51 through the liquid inlet pipe 57. Subsequently, the heat of the coolant is transferred to the solid amine resin filler 5 through the heat exchange sleeve 51, heating the solid amine resin filler 5. After the solid amine resin filler 5 is heated, the carbon dioxide is released, enabling the solid amine resin filler 5 to release purer carbon dioxide;

[0048] After the heat of the coolant is transferred to the heat exchange sleeve 51 and the solid amine resin filler 5, its own heat is reduced. Then it flows back into the interior of the plate heat exchanger 54 through the liquid outlet pipe 58 and then back to the cooling system through the heat source outlet pipe 56. As a result, the temperature difference between the coolant flowing back to the cooling system and the engine increases, thereby improving the efficiency of the subsequent coolant circulation in cooling the engine;

[0049] Then, the controller closes the exhaust pipe 53. After the exhaust pipe 53 is closed, any gas is prevented from being emitted externally. The three-way catalytic converter 1 in the idling state then has more time to purify the exhaust gas, improving the efficiency of the three-way catalytic converter 1 in purifying the exhaust gas.

[0050] It should be noted that electric control valves are provided inside the exhaust pipe 53 and the connecting pipe 11. All the devices of the present invention are connected to the vehicle computer and can be controlled through the vehicle-mounted control system. The start and stop of all the devices can be set or manually controlled through the vehicle computer system.

[0051] Embodiment 2:

[0052] On one side of the top of the clamping plate 4 away from the solid amine resin filler 5, a gas-liquid separator 6 is fixed. The inlet pipe of the gas-liquid separator 6 is communicated with the gas collecting box 52. A gas delivery pipe 61 is fixed to the top of the gas-liquid separator 6, and a micro-compressor 62 is fixed to the end of the gas delivery pipe 61 away from the gas-liquid separator 6. A water discharge pipe is provided at the bottom of the gas delivery pipe 61, and the water discharge pipe passes through the clamping plate 4;

[0053] A hose 63 is fixed to the air outlet of the micro-compressor 62. One end of the hose 63 away from the micro-compressor 62 is fixed with an air injection head 64, and the air injection head 64 is communicated with the valve core 321. A dial plate 7 is fixed on the surface of the hose 63. One side inner wall of the exhaust groove 33 is rotatably connected with an adjusting screw 71. One end of the dial plate 7 is threadedly connected with the adjusting screw 71. One end of the dial plate 7 close to the exhaust groove 33 is slidably connected with the exhaust groove 33;

[0054] Specifically, on the basis of the first embodiment, when the plate heat exchanger 54 heats the heat exchange sleeve 51 and the solid amine resin filler 5 through the coolant, the carbon dioxide in the solid amine resin filler 5 is desorbed, and higher-purity carbon dioxide is produced. When the electric control valve of the exhaust pipe 53 is closed, the electric control valve in the connecting pipe 11 is synchronously closed to prevent the purified tail gas from mixing into the inside of the gas collecting box 52 and mixing with the high-purity carbon dioxide. At the same time, the residence time of the unpurified tail gas in the three-way catalytic converter 1 under the idle state is extended, and the efficiency of tail gas purification is improved;

[0055] Then, the controller is used to start the gas-liquid separator 6, so that the high-purity carbon dioxide enters the inside of the gas-liquid separator 6 through the inlet pipe of the gas-liquid separator 6, and gas-liquid separation is carried out. The high-purity carbon dioxide is transported to the inside of the micro-compressor 62 through the air delivery pipe 61, and is pressed into the inside of the gas storage tank 32 through the micro-compressor 62, the hose 63 and the air injection head 64. The liquid after gas-liquid separation is discharged through the drain pipe below the gas-liquid separator 6;

[0056] When the vehicle travels again, the valves of the connecting pipe 11 and the exhaust pipe 53 can be opened, so that the three-way catalytic converter 1, the connecting pipe 11 and the treatment box 3 are communicated again, so that the purified tail gas can be discharged to the outside through the treatment box 3 again, and the carbon dioxide in the tail gas is adsorbed again. Thus, the present invention effectively achieves the purpose of reducing carbon dioxide emissions and reduces the carbon emissions of the present invention.

[0057] It should be noted that a sensor is provided in the gas storage tank 32, which can sense the degree of carbon dioxide collection and display it on the vehicle computer. When the gas storage tank 32 is full, the adjusting screw 71 can be rotated to make the adjusting screw 71 drive the dial plate 7 to slide inside the exhaust groove 33. While the dial plate 7 slides, it drives the hose 63 and the air injection head 64 to displace towards the direction of the micro-compressor 62, so that the air injection head 64 is disengaged from the valve core 321, and the gas storage tank 32 loses the lock of the air injection head 64. Then, the gas storage tank 32 can be taken out of the inside of the treatment box 3, and the empty gas storage tank 32 can be replaced;

[0058] The collected high-purity carbon dioxide can be applied to other places. Thus, while reducing carbon emissions, the present invention collects high-purity carbon dioxide for reuse, saving energy consumption;

[0059] Meanwhile, when the vehicle needs to start for a long time without moving, or is in an idle state for a long time, the plate heat exchanger 54 can be selected not to be started, so that the solid amine resin filler 5 does not desorb carbon dioxide. At this time, the exhaust gas can be discharged normally, thus avoiding the continuous discharge of the exhaust gas into the inside of the three-way catalytic converter 1 and the connecting pipe 11 in the idle state, and avoiding excessive pressure on the three-way catalytic converter 1 and the connecting pipe 11.

[0060] Embodiment 3:

[0061] At both ends of the top of the sliding seat 22 close to one side of the cylinder 21, connecting rods 8 are fixed. The connecting rods 8 pass through the processing box 3 and are slidably connected to the processing box 3. One end of the connecting rod 8 passing through the processing box 3 is fixed with a locking screw 81. A grille plate 82 is slidably connected to the outside of the locking screw 81. Above and below the side of the grille plate 82 close to the processing box 3, a flow dividing strip 83 is fixed;

[0062] An aluminum sheet 9 is slidably connected to the inside of the top of the sliding seat 22 close to one side of the cylinder 21. The aluminum sheet 9 passes through the connecting pipe 11 and is slidably connected to the connecting pipe 11. One end of the aluminum sheet 9 close to the sliding seat 22 is fixed with a push plate 91. Second springs 92 are fixed above and below the side of the push plate 91 away from the limit bolt 24. The second springs 92 are fixed to the inner wall of the chute 23. The push plate 91 is slidably connected to the chute 23;

[0063] Specifically, on the basis of Embodiment 1 and Embodiment 2, when the vehicle is in an idle state, the cylinder 21 can be started. After the cylinder 21 is ejected, the connecting pipes 11 and 12 are stretched, so that the diameters of 12 and the connecting pipe 11 are the same, thereby prolonging the residence time of the exhaust gas in the three-way catalytic converter 1 and improving the efficiency of the three-way catalytic converter 1 in purifying the exhaust gas;

[0064] At the same time, when the connecting pipes 11 and 12 are stretched to the state where their diameters are the same, at this time, the distance between the sliding seat 22 and the fixed seat 2 reaches the maximum stroke. During the process of the sliding seat 22 moving away from the fixed seat 2, the connecting rod 8 is driven to move and adjust inside the processing box 3, so that the sliding seat 22 drives the connecting rod 8 to drive the locking screw 81 to move synchronously towards the direction of the three-way catalytic converter 1, so that the locking screw 81 drives the grille plate 82 and the flow dividing strip 83 to move towards the direction of the three-way catalytic converter 1;

[0065] During the movement of the grille plate 82 and the flow dividing strip 83, the grille plate 82 and the flow dividing strip 83 block the exhaust slots 33, further achieving the effect of closing the processing box 3 and reducing the probability of the processing box 3 discharging unpurified exhaust gas to the outside;

[0066] Furthermore, when the vehicle is turned off and completely shut down, the cylinder 21 can be maintained in the ejected state through the controller, that is, the grille plate 82 and the diverter strip 83 are maintained in the closed state of the exhaust slot 33. At this time, the treatment box 3 is in a completely closed state, which can prevent artificial foreign matter or other living things from entering the interior of the treatment box 3, effectively protecting the internal equipment of the treatment box 3. At the same time, the grille plate 82 also plays the role of shielding the adjusting screw 71, preventing others from turning the adjusting screw 71 without authorization and releasing the connection between the pumping head 64 and the gas tank 32, thereby ensuring the protectiveness of the connection between the pumping head 64 and the gas tank 32.

[0067] Furthermore, when the cylinder 21 is pushed out, that is, the diameters of the connecting pipes 11 and 12 are stretched to the same, the distance between the sliding seat 22 and the fixing seat 2 reaches the maximum stroke. In the process of the sliding seat 22 moving away from the fixing seat 2, the sliding seat 22 drives the aluminum sheet 9, the push plate 91 and the second spring 92 to move synchronously toward the three-way catalytic converter 1, while the limiting bolt 24 is located inside the slide groove 23 and fixed to the bottom of the vehicle and cannot move, so that the movement of the push plate 91 is hindered by the limiting bolt 24, and the limiting bolt 24 pushes the push plate 91 and the aluminum sheet 9 in the opposite direction, so that the distance extended by the aluminum sheet 9 in the connecting pipe 11 is extended, and the area of the aluminum sheet 9 in the connecting pipe 11 is increased. The increase in the area of the aluminum sheet 9 in the connecting pipe 11 has a flow blocking effect, and the speed of the exhaust gas flowing inside the connecting pipe 11 is further reduced;

[0068] The time that the unpurified exhaust gas stays inside the three-way catalytic converter 1 is further prolonged, and the exhaust gas purification efficiency of the three-way catalytic converter 1 is indirectly improved. On the contrary, when the cylinder 21 is in the return stroke, that is, when the sliding seat 22 moves in the direction of the fixed seat 2, the two sides of the connecting pipe 11 squeeze the pipe 12, so that the cross-sectional area of the pipe diameter of the pipe 12 is reduced, so that the flow rate of the exhaust gas in the connecting pipes 11 and 12 is accelerated;

[0069] When the sliding seat 22 moves toward the fixed seat 2, the sliding seat 22 drives the aluminum sheet 9 to move toward the fixed seat 2 synchronously. At this time, the push plate 91 loses the obstruction of the limit bolt 24 and is reset under the action of the push plate 91, so that the aluminum sheet 9 is stretched inside the slide groove 23, that is, the area of the aluminum sheet 9 in the connecting pipe 11 is reduced until the bottom of the aluminum sheet 9 fits with the pipe wall of the connecting pipe 11, thereby avoiding the aluminum sheet 9 from affecting the exhaust gas flow rate in the connecting pipe 11.

[0070] It should be noted that the specific length of the aluminum sheet 9 can be set according to the length of the slide groove 23, so that when the sliding seat 22 and the fixed seat 2 reach the maximum stroke, the area of the aluminum sheet 9 in the connecting tube 11 is maximized. At the same time, in order to ensure that the aluminum sheet 9 will not completely separate from the connecting tube 11, that is, when the bottom of the aluminum sheet 9 is completely in contact with the tube wall, the distance between the sliding seat 22 and the fixed seat 2 reaches the required shortest distance, that is, the cross-sectional area of the tube wall at this time reaches the minimum required state;

[0071] When the cylinder 21 is in the return stroke, that is, when the sliding seat 22 moves towards the fixed seat 2, the sliding seat 22 drives the connecting rod 8, the locking screw 81 and the grille plate 82 to move synchronously, so that the distance between the grille plate 82 and the exhaust groove 33 gradually increases. At this time, the exhaust groove 33 can normally discharge the purified tail gas.

[0072] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine exhaust gas treatment device, comprising a three-way catalytic converter (1), characterized in that: One end of the three-way catalytic converter (1) is slidably connected to a connecting pipe (11); The middle part of the connecting pipe (11) is provided with (12), the top of the connecting pipe (11) away from the three-way catalytic converter (1) is fixed with a fixing seat (2), the inside of the fixing seat (2) close to the three-way catalytic converter (1) is fixed with a cylinder (21), the top of the connecting pipe (11) close to the three-way catalytic converter (1) is fixed with a sliding seat (22), the output shaft of the cylinder (21) is fixed to the sliding seat (22), the two sides of the top of the sliding seat (22) are provided with sliding grooves (23), and the inside of the sliding groove (23) is slidably connected with a limiting bolt (24); A treatment box (3) is fixed to the outside of one end of the connecting pipe (11) away from the three-way catalytic converter (1), and a quickly detachable receiving assembly is provided in the treatment box (3); The receiving component is provided with a capture component for capturing carbon dioxide.

2. The engine exhaust gas treatment device according to claim 1, wherein: A positioning block (31) is fixed to the inner wall of one side of the processing box (3), a gas storage tank (32) is clamped on the outside of the positioning block (31), and the gas storage tank (32) is slidably connected to the processing box (3), a valve core (321) is fixed inside the gas storage tank (32), and an exhaust groove (33) is provided on the side of the processing box (3) away from the positioning block (31).

3. The engine exhaust gas treatment device according to claim 2, wherein: The receiving assembly comprises a clamping plate (4), the clamping plate (4) is slidably connected to the bottom of the processing box (3), sliding grooves (41) are provided on both sides of the middle position of the clamping plate (4), receiving grooves (42) are provided on both sides of the clamping plate (4), and the sliding groove (41) and the receiving groove (42) are communicated, and a lever (43) is slidably connected inside the sliding groove (41); The horizontal portion of the lever (43) is slidably connected to the receiving groove (42), a positioning plate (44) is fixed to one end of the horizontal portion of the lever (43), the positioning plate (44) is slidably connected to the receiving groove (42), and a first spring (45) is fixed to a side of the vertical portion of the lever (43) away from the positioning plate (44), and the first spring (45) is fixed to the inner wall of the sliding groove (41).

4. The engine exhaust gas treatment device according to claim 3, characterized in that: The capture assembly comprises a solid amine resin filler (5), the solid amine resin filler (5) is fixed on the top of the clamping plate (4), a heat exchange sleeve (51) is fixed on the outside of the solid amine resin filler (5), a gas collection box (52) is fixed on the top of the clamping plate (4), the gas collection box (52) is coated on the outside of the heat exchange sleeve (51) and the solid amine resin filler (5), a through opening is provided on a side of the gas collection box (52) close to the connecting pipe (11), and the gas collection box (52) is connected to the connecting pipe (11) through the through opening, and an exhaust pipe (53) is fixed on a side of the gas collection box (52) away from the connecting pipe (11), and the exhaust pipe (53) is connected to the gas collection box (52); On the top of the clamping plate (4) and on one side of the solid amine resin filler (5), a plate heat exchanger (54) is fixed. On both sides of the bottom of the plate heat exchanger (54), a heat source inlet pipe (55) and a heat source outlet pipe (56) are respectively fixed. Both the heat source inlet pipe (55) and the heat source outlet pipe (56) pass through the clamping plate (4) and are communicated with the cooling system of the engine. On one side of the surface of the plate heat exchanger (54) close to the heat source inlet pipe (55), a liquid inlet pipe (57) is fixed. On one side of the surface of the plate heat exchanger (54) close to the heat source outlet pipe (56), a liquid outlet pipe (58) is fixed. Both the liquid inlet pipe (57) and the liquid outlet pipe (58) pass through the gas collecting box (52) and are communicated with the heat exchange sleeve (51).

5. The engine exhaust gas treatment device according to claim 4, characterized in that: On the top of the clamping plate (4) and on the side far from the solid amine resin filler (5), a gas-liquid separator (6) is fixed. The intake pipe of the gas-liquid separator (6) is communicated with the gas collecting box (52). On the top of the gas-liquid separator (6), an air supply pipe (61) is fixed. One end of the air supply pipe (61) far from the gas-liquid separator (6) is fixed with a micro-compressor (62). At the bottom of the air supply pipe (61), a water discharge pipe is provided, and the water discharge pipe passes through the clamping plate (4).

6. The engine exhaust gas treatment device according to claim 5, characterized in that: The air outlet of the micro-compressor (62) is fixed with a hose (63). One end of the hose (63) far from the micro-compressor (62) is fixed with an air injection head (64), and the air injection head (64) is communicated with the valve core (321).

7. The engine exhaust gas treatment device according to claim 6, characterized in that: A dial plate (7) is fixed on the surface of the hose (63). One inner wall of one side of the exhaust groove (33) is rotatably connected with an adjusting screw (71). One end of the dial plate (7) is threadedly connected with the adjusting screw (71). One end of the dial plate (7) close to the exhaust groove (33) is slidably connected with the exhaust groove (33).

8. The engine exhaust gas treatment device according to claim 7, characterized in that: At both ends of the top of the sliding seat (22) close to one side of the cylinder (21), connecting rods (8) are fixed. The connecting rods (8) pass through the processing box (3) and are slidably connected with the processing box (3). One end of the connecting rod (8) passing through the processing box (3) is fixed with a locking screw (81). An external sliding connection of the locking screw (81) is provided with a grille plate (82). Above and below one side of the grille plate (82) close to the processing box (3), flow dividing strips (83) are fixed.

9. The engine exhaust gas treatment device according to claim 8, wherein: An aluminum sheet (9) is slidably connected inside the top of the sliding seat (22) close to one side of the cylinder (21). The aluminum sheet (9) passes through the connecting pipe (11) and is slidably connected with the connecting pipe (11). One end of the aluminum sheet (9) close to the sliding seat (22) is fixed with a push plate (91). Above and below one side of the push plate (91) far from the limit bolt (24), second springs (92) are fixed. The second springs (92) are fixed with the inner wall of the sliding groove (23), and the push plate (91) is slidably connected with the sliding groove (23).

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