CN110145388B

CN110145388B - Three-way catalytic converter

Info

Publication number: CN110145388B
Application number: CN201910497863.7A
Authority: CN
Inventors: 不公告发明人
Original assignee: Taizhou Three Way Vehicle Catalytic Converter Co ltd
Current assignee: Zhejiang Sanyuan Longxing Technology Co.,Ltd.
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2021-08-24
Anticipated expiration: 2039-06-10
Also published as: CN110145388A

Abstract

The invention belongs to the technical field of automobile exhaust treatment, and particularly relates to a three-way catalyst which comprises an air inlet taper pipe, a shell, a gasket, a carrier and an air outlet taper pipe, wherein the air inlet taper pipe is arranged on one side of the shell, the air outlet taper pipe is arranged on the other side of the shell, the shell is communicated with the air inlet taper pipe, and the shell is communicated with the air outlet taper pipe; the device comprises a shell, a group of carriers, a group of gaskets, a group of through holes, a multi-prism through hole, pressure films, purifying agents, openings and a spring, wherein the carriers are arranged in the shell; the pull rod is fixedly connected with the pressure membrane; the cleanness of the carrier is kept, and the capability of purifying the tail gas by the carrier is kept.

Description

Three-way catalytic converter

Technical Field

The invention belongs to the technical field of automobile exhaust treatment, and particularly relates to a three-way catalyst.

Background

After the automobile gasoline is combusted, a large amount of harmful gases are generated, and mainly comprise carbon monoxide, hydrocarbon and nitric oxide; therefore, the mixed harmful gas is generally treated by a three-way catalyst to generate carbon dioxide and water, and then the carbon dioxide and the water are discharged into the atmosphere.

The interior of the existing three-way catalytic converter is generally filled with a honeycomb-shaped catalyst support, and a noble metal catalyst is plated on the catalyst support; because impurities contained in the tail gas and a complex generated in the chemical reaction process are easy to accumulate on the honeycomb-shaped catalyst support, more blocked and sintered areas can be formed in the three-way catalyst after a long time, and the blocking severity is gradually reduced from the air inlet to the air outlet of the catalyst; this results in severe blockage of the front section of the catalyst and good performance of the rear section, which results in scrapping of the catalyst when the catalyst is not fully utilized, and thus causes great waste.

Some three-way catalyst technical schemes also appear in the prior art, for example, a durable three-way catalyst is disclosed in a Chinese patent with the application number of 2016100022688; a durable three-way catalyst comprises a shell and a honeycomb-shaped catalyst support inside the shell; the catalyst support is plated with a three-way catalyst; the catalyst support is in a round block shape matched with the inner cavity of the shell, and can rotate around the common axis of the shell and the catalyst support in the shell; and the circumferential walls on two sides of the axis of the shell are respectively connected with an air inlet and an air outlet.

Although the technical scheme has the advantages of long service life and the like when in use; however, the service life of such three-way catalysts can continue to increase, and at the same time, such three-way catalysts may fail in winter use, and for this reason, we have proposed a three-way catalyst to solve the above-mentioned problems.

Disclosure of Invention

In order to make up the defects of the prior art, the invention provides the three-way catalyst, the gaps of the through holes of the carrier are changed by adopting the pressure membrane, so that the tail gas flows through the more and more dense through holes, the purification degree of the tail gas is stronger and stronger, and the carrier is designed to have the same service life; and along with the change of tail gas, tail gas can make the pressure membrane produce the vibration, shakes the chemical complex of adhesion on the elastic membrane, and tail gas can produce a recoil force to the carrier through the fluting to the carrier will rotate in the casing through the bearing, makes the pressure membrane take place the vibration, and the reinforcing shakes the chemical complex of adhesion on the elastic membrane, keeps the cleanness of carrier, keeps the ability that the carrier purified tail gas.

The technical scheme adopted by the invention for solving the technical problems is as follows: a three-way catalyst comprises an air inlet taper pipe, a shell, a gasket, a carrier and an air outlet taper pipe, wherein the air inlet taper pipe is arranged on one side of the shell, the air outlet taper pipe is arranged on the other side of the shell, the shell is communicated with the air inlet taper pipe, and the shell is communicated with the air outlet taper pipe; a group of carriers is arranged in the shell, and a group of gaskets is arranged in the shell; a group of through holes are formed in the group of carriers, and purifying agents are sprayed on the carriers; the through hole is in a polygon shape, each surface of the polygon shape of the through hole is provided with a pressure film, and a purifying agent is sprayed in the through hole; the side edges of the group of pressure films are provided with openings, the outer surfaces of the pressure films are sprayed with purifying agents, cavities are formed in the pressure films, and the pressure films cover all sides of the polygon; the opening is communicated with the pressure pipe; a group of sliding blocks are arranged in the pressure pipe; the sliding block is connected in the sliding groove in a sliding mode, a spring is fixedly connected between the sliding block and the sliding groove, and pull wires are symmetrically arranged on two sides of the sliding block; the pull wire is fixedly connected with the pressure membrane.

When the engine exhausts through the exhaust pipe, high-temperature automobile exhaust enters the shell through the air inlet taper pipe, the exhaust passes through the through hole of the carrier, the exhaust flows into the pressure pipe through the open hole on the pressure film, the pressure pipe increases gradually along with the increase of the exhaust, when the pressure in the pressure pipe is larger than the supporting force of the spring, the exhaust in the pressure pipe pushes the sliding block to slide in the sliding groove, when the pressure in the pressure pipe is balanced with the elastic force of the spring, the sliding block is balanced at the position, meanwhile, when the sliding block slides in the sliding groove, the sliding block pulls the pull wire to move towards the surface of the polygon, so that the pressure film is stressed and bent, the gap formed by the pressure film in the through hole becomes larger, and after the high-temperature exhaust flowing through the shell bends the pressure film of the carrier at different positions, the pressure of the high-temperature exhaust is smaller compared with the pressure of the previous carrier after reaching the next carrier, therefore, the bending degree of the pressure film of the carrier is reduced, the gap formed by the pressure film is reduced, and tail gas flows through the through hole gaps with the density being more and more dense; the purifying agent enhances the activity of three gases of CO, HC and NOx to promote the three gases to carry out certain oxidation-reduction chemical reaction, wherein CO is oxidized into colorless and nontoxic carbon dioxide gas at high temperature; HC compounds are oxidized at high temperatures to water (H) and carbon dioxide; NOx is reduced to nitrogen and oxygen; three harmful gases are changed into harmless gases, so that the automobile exhaust can be purified; the pressure membrane is adopted to change the gaps of the through holes of the carrier, so that the tail gas flows through the more and more dense through holes, the purification degree of the tail gas is stronger and stronger, the carrier is kept in a design with the same service life, the situation that the carrier which passes through the carrier first is blocked by a chemical complex after the tail gas is purified, the tail gas can be purified by the carrier at the rear part, but the three-way catalyst is seriously blocked and cannot work effectively; and with the change of the tail gas, the tail gas can lead the pressure membrane to generate vibration, shake the chemical complex adhered on the elastic membrane, keep the cleanness of the carrier and keep the capability of the carrier for purifying the tail gas.

Preferably, the bottom of the sliding groove is provided with a through groove; the through groove is communicated with the air guide pipe; one end of the air duct is arranged in the pressure membrane, and the other end of the air duct is arranged in the carrier; an air collecting pipe is arranged in the carrier; the air collecting pipe is communicated with the air guide pipe and is obliquely arranged; a group of slots are arranged on the gasket; and a group of bearings are rotatably connected between the group of carriers and the group of gaskets. When the slider slides to the spout bottom, tail gas can flow into in the air duct through leading to the groove, tail gas through the air duct can be gathering in gathering the air duct, tail gas can rush to the fluting of liner, the fluting can produce a recoil power to the carrier, thereby the carrier will rotate in the casing through the bearing, make the pressure film take place the vibration, the reinforcing shakes the chemical complex of adhesion on the elastic membrane, and gas can flow through the bearing and assault the carrier, further keep the cleanness of carrier, further keep the ability that the carrier purified tail gas.

Preferably, the side surface of the carrier is symmetrically hinged with cleaning rods; the end part of the cleaning rod is provided with an air bag, and the cleaning rod is made of flexible materials. When the carrier rotated in the casing, because the gas pressure through different carriers is different, the rotational speed of event each carrier will be different, the carrier can drive its articulated cleaning rod and throw, the cleaning rod can be thrown the carrier that it contacted and beat, make the carrier take place to rock, because the carrier is provided with many arriss bodily forms's through-hole, the cleaning rod can further strengthen the ability of rocking of carrier, simultaneously because the gasbag of cleaning rod tip, the gasbag contact carrier can take place compression and inflation, the shake degree that makes the pressure membrane in the carrier strengthens further, further keep the cleanness of carrier, further keep the ability that the carrier purified tail gas.

Preferably, a group of flexible needles are arranged on the cleaning rod; round holes are formed in the middle of the group of flexible needles; the round hole is communicated with the air bag. When the clearance pole was thrown, in the flexible needle on the clearance pole can insert the space that the pressure membrane constitutes, flexible needle can strike off the pressure membrane, and simultaneously, the tip that the gas in the gasbag can flow flexible needle through the round hole, blows the chemical complex who strikes off, and flexible needle adopts another kind of clearance mode, clears up the carrier, strikes off when rocking the carrier, and the cleanness that further keeps the carrier keeps carrier purification tail gas's ability further.

Preferably, the end face of the flexible needle is provided with two sections of inclined planes with different inclination angles; a group of bulges are arranged on each group of inclined planes; the end part of the bulge is round, and the bulge is made of flexible materials. When the flexibility is cleaned to the carrier, the flexible needle can be attached on the surface of the carrier and the pressure film, different inclined planes of the flexible needle can be sequentially attached to and separated from the carrier and the pressure film, the pressure film and the carrier are rocked, and because the inclined planes are provided with the protrusions, the protrusions can enhance the friction force of the flexibility to the pressure film and the carrier, so that the scraping capacity of the flexible needle is further enhanced, the cleaning of the carrier is further maintained, and the tail gas purification capacity of the carrier is further maintained.

Preferably, the carrier is an anti-perovskite negative thermal expansion material with a chemical formula of MnAN (a ═ Zn, Ga, Cu), and the carrier can slide on the gasket along the bearing. When the automobile is started in winter, the through holes in the carrier expand due to low temperature, the through holes can become large, tail gas can smoothly flow through the carrier at the beginning, the carrier shrinks after the temperature of the tail gas discharged by the automobile rises, the through holes can become small, the purification capacity of the carrier for the tail gas of the automobile is enhanced, and the impact area of gas on the carrier is enhanced due to the small through holes, so that the carrier slides in the shell, the cleaning capacity of the carrier is enhanced flexibly, the cleanness of the carrier is further kept, and the tail gas purification capacity of the carrier is further kept.

The invention has the beneficial effects that:

1. according to the three-way catalytic converter, the pressure membrane is adopted to change the gaps of the through holes of the carrier, so that tail gas flows through the more and more dense through holes, the purification degree of the tail gas is stronger and stronger, and the carrier is designed to have the same service life; and along with the change of tail gas, tail gas can make the pressure membrane produce the vibration, shakes the chemical complex who adheres on the elastic membrane, and tail gas can produce a recoil power to the carrier through the fluting to the carrier will rotate in the casing through the bearing, makes the pressure membrane take place the vibration, and gas can flow through the bearing and strike the carrier, and the reinforcing shakes the chemical complex who adheres on the elastic membrane, keeps the cleanness of carrier, keeps the ability that the carrier purified tail gas.

2. According to the three-way catalytic converter, the flexible needle can scrape the pressure film, gas in the air bag can flow to the end part of the flexible needle through the round hole, the scraped chemical complex is blown, different inclined planes of the flexible needle can be attached to and separated from the carrier and the pressure film in sequence, the pressure film and the carrier are shaken, and due to the fact that the inclined planes are provided with the protrusions, the protrusions can enhance the friction force of the flexible needle to the pressure film and the carrier.

3. According to the three-way catalyst, the carrier is made of the negative thermal expansion material, and slides in the shell, so that the cleaning capability of the carrier due to flexibility is enhanced, the cleaning of the carrier is further kept, and the capability of the carrier for purifying tail gas is further kept.

Drawings

The invention is further described with reference to the following figures and embodiments.

FIG. 1 is a front three-axis side sectional view of the present invention;

FIG. 2 is an enlarged view of a portion of the invention at A in FIG. 1;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of the invention at B in FIG. 3;

FIG. 5 is an enlarged view of a portion of the invention at C in FIG. 4;

FIG. 6 is a cross-sectional view D-D of FIG. 5 of the present invention;

FIG. 7 is a right side view of the present invention;

FIG. 8 is a cross-sectional view of a liner of the present invention;

FIG. 9 is a front three-axis side view of the flexible needle of the present invention;

in the figure: the air inlet taper pipe comprises an air inlet taper pipe 1, a shell 2, a gasket 3, a carrier 4, an air outlet taper pipe 5, a through hole 6, a pressure film 7, an opening 8, a cavity 9, a pressure pipe 10, a sliding block 11, a sliding groove 12, a spring 13, a pull wire 14, a through groove 15, an air guide pipe 16, an air gathering pipe 17, a groove 18, a bearing 19, a cleaning rod 20, an air bag 21, a flexible needle 22, a round hole 23, an inclined plane 24 and a protrusion 25.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described below with reference to the specific embodiment, and all directions of the invention are based on fig. 3.

As shown in fig. 1 to 9, the three-way catalyst of the present invention includes an air inlet taper pipe 1, a shell 2, a gasket 3, a carrier 4 and an air outlet taper pipe 5, wherein one side of the shell 2 is provided with the air inlet taper pipe 1, the other side of the shell 2 is provided with the air outlet taper pipe 5, the shell 2 is communicated with the air inlet taper pipe 1, and the shell 2 is communicated with the air outlet taper pipe 5; a group of carriers 4 is arranged in the shell 2, and a group of gaskets 3 is arranged in the shell 2; a group of through holes 6 are formed in the group of carriers 4, and purifying agents are sprayed on the carriers 4; the through hole 6 is in a polygon shape, each surface of the polygon shape of the through hole 6 is provided with a pressure film 7, and a purifying agent is sprayed in the through hole 6; the side edges of the group of pressure membranes 7 are provided with openings 8, the purifying agent is sprayed on the outer surfaces of the pressure membranes 7, cavities 9 are arranged in the pressure membranes 7, and the pressure membranes 7 cover all sides of the polygon; the opening 8 is communicated with a pressure pipe 10; a group of sliding blocks 11 are arranged in the pressure pipe 10; the sliding block 11 is connected in the sliding groove 12 in a sliding mode, a spring 13 is fixedly connected between the sliding block 11 and the sliding groove 12, and pull wires 14 are symmetrically arranged on two sides of the sliding block 11; the pull wire 14 is fixedly connected with the pressure membrane 7.

When the automobile exhaust gas exhaust device works, when an engine exhausts gas through an exhaust pipe, high-temperature automobile exhaust gas enters a shell 2 through an air inlet taper pipe 1, the exhaust gas passes through a through hole 6 of a carrier 4, the exhaust gas flows into a pressure pipe 10 through an opening 8 on a pressure film 7, the pressure pipe 10 increases gradually as the exhaust gas increases, when the pressure in the pressure pipe 10 is greater than the supporting force of a spring 13, the exhaust gas in the pressure pipe 10 pushes a slide block 11 to slide in a chute 12, when the pressure in the pressure pipe 10 is balanced with the elastic force of the spring 13, the slide block 11 is balanced at the position, meanwhile, when the slide block 11 slides in the chute 12, the slide block 11 pulls a pull wire 14 to move towards the surface of a polygon, so that the pressure film 7 is stressed and bent, a gap formed by the pressure film 7 in the through hole 6 becomes larger, and after the high-temperature exhaust gas flowing through a shell bends the pressure film 7 of the carrier 4 at different positions, after the high-temperature tail gas reaches the next carrier 4, the pressure of the high-temperature tail gas is smaller than that of the last carrier 4, so that the bending degree of the pressure film 7 of the carrier 4 is smaller, the gap formed by the pressure film 7 is smaller, and the tail gas flows through the gap of the through hole 6 with the density being more and more dense; the purifying agent enhances the activity of three gases of CO, HC and NOx to promote the three gases to carry out certain oxidation-reduction chemical reaction, wherein CO is oxidized into colorless and nontoxic carbon dioxide gas at high temperature; HC compounds are oxidized at high temperatures to water H and carbon dioxide; NOx is reduced to nitrogen and oxygen; three harmful gases are changed into harmless gases, so that the automobile exhaust can be purified; the pressure membrane 7 is adopted to change the gaps of the through holes 6 of the carrier 4, so that the tail gas flows through the more and more dense through holes 6, the purification degree of the tail gas is stronger and stronger, the design of the same service life of the carrier 4 is kept, the situation that the carrier 4 which passes through the tail gas firstly is blocked by a chemical complex after purification, the carrier 4 at the rear part can also purify the tail gas continuously is avoided, but the three-way catalyst is seriously blocked and cannot work effectively; and along with the change of the tail gas, the tail gas can cause the pressure membrane 7 to vibrate, shake the chemical complex adhered to the elastic membrane, keep the cleanness of the carrier 4 and keep the capability of the carrier 4 for purifying the tail gas.

As one embodiment, a through groove 15 is arranged at the bottom of the sliding groove 12; the through groove 15 is communicated with an air duct 16; one end of the air duct 16 is arranged in the pressure membrane 7, and the other end of the air duct 16 is arranged in the carrier 4; an air collecting pipe 17 is arranged in the carrier 4; the air collecting pipe 17 is communicated with the air duct 16, and the air collecting pipe 17 is obliquely arranged; a group of slots 18 are arranged on the gasket 3; a set of bearings 19 is rotatably connected between a set of the carriers 4 and a set of the pads 3. When the sliding block 11 slides to the bottom of the sliding groove 12, tail gas can flow into the gas guide pipe 16 through the through groove 15, the tail gas passing through the gas guide pipe 16 can be gathered in the gas collecting pipe 17, the tail gas can rush to the groove 18 of the gasket 3, the groove 18 can generate a recoil force on the carrier 4, so that the carrier 4 can rotate in the shell through the bearing 19, the pressure membrane 7 is vibrated, the vibration of a chemical complex adhered to the elastic membrane is enhanced, the gas can flow through the bearing 19 to impact the carrier 4, the cleanness of the carrier 4 is further kept, and the capability of the carrier 4 for purifying the tail gas is further kept.

As one embodiment, the side surface of the carrier 4 is symmetrically hinged with cleaning rods 20; the end part of the cleaning rod 20 is provided with an air bag 21, and the cleaning rod 20 is made of flexible materials. When the carrier 4 rotates in the shell, because the gas pressure through different carriers 4 is different, so the rotational speed of each carrier 4 will be different, the carrier 4 can drive its articulated cleaning rod 20 to throw, cleaning rod 20 can throw the carrier 4 that it contacted, make carrier 4 take place to rock, because carrier 4 is provided with many arriss bodily forms's through-hole 6, cleaning rod 20 can further strengthen the wobbling ability of carrier 4, simultaneously because the gasbag 21 of cleaning rod 20 tip, gasbag 21 contact carrier 4 can take place to compress and expand, the shake degree that makes pressure membrane 7 in the carrier 4 further strengthens, further keep the cleanness of carrier 4, further keep the ability of carrier 4 purification tail gas.

As an embodiment, the cleaning rod 20 is provided with a set of flexible needles 22; a round hole 23 is arranged in the middle of the group of flexible needles 22; the circular hole 23 communicates with the air bag 21. When clearance pole 20 is swung, flexible needle 22 on the clearance pole 20 can insert in the space that pressure membrane 7 constitutes, flexible needle 22 can scrape off pressure membrane 7, and simultaneously, the gas in the gasbag 21 can flow to the tip of flexible needle 22 through round hole 23, blows the chemical complex who scrapes off, and flexible needle 22 adopts another kind of clearance mode, clears up carrier 4, scrapes off when rocking carrier 4, and the cleanness of carrier 4 is kept further, and the ability of carrier 4 purification tail gas is kept further.

In one embodiment, the end surface of the flexible needle 22 is provided with two inclined surfaces 24 with different inclination angles; a group of bulges 25 are arranged on each group of inclined surfaces 24; the end of the bulge 25 is round, and the bulge 25 is made of flexible material. When the flexible needle 22 cleans the carrier 4, the flexible needle 22 is attached to the surfaces of the carrier 4 and the pressure membrane 7, different inclined planes 24 of the flexible needle 22 are sequentially attached to and separated from the carrier 4 and the pressure membrane 7, so that the pressure membrane 7 and the carrier 4 shake, and due to the fact that the inclined planes 24 are provided with the protrusions 25, the protrusions 25 can enhance the friction force of the flexible needle 22 on the pressure membrane 7 and the carrier 4, the scraping capacity of the flexible needle 22 is further enhanced, the carrier 4 is further kept clean, and the tail gas purification capacity of the carrier 4 is further kept.

In one embodiment, the carrier 4 is an anti-perovskite negative thermal expansion material having a chemical formula of MnANA ═ Zn, Ga, and Cu, and the carrier 4 can slide on the pad 3 along the bearing 19. When the automobile starts in winter, because the temperature is lower, the through-hole 6 in the carrier 4 can take place the inflation, through-hole 6 can grow, make tail gas just can flow through the carrier 4 smoothly at the beginning, after vehicle exhaust's tail gas temperature rose, carrier 4 can shrink, through-hole 6 can diminish, reinforcing carrier 4 is to the ability of purifying of automobile exhaust, and because through-hole 6 diminishes, the impact area of gas to carrier 4 can strengthen, make carrier 4 slide in the casing, reinforcing flexible needle 22 is to the ability of cleaning of carrier 4, further keep the cleanness of carrier 4, further keep the ability of carrier 4 purification tail gas.

When the automobile exhaust gas exhaust device works, when an engine exhausts gas through an exhaust pipe, high-temperature automobile exhaust gas enters a shell 2 through an air inlet taper pipe 1, the exhaust gas passes through a through hole 6 of a carrier 4, the exhaust gas flows into a pressure pipe 10 through an opening 8 on a pressure film 7, the pressure pipe 10 increases gradually as the exhaust gas increases, when the pressure in the pressure pipe 10 is greater than the supporting force of a spring 13, the exhaust gas in the pressure pipe 10 pushes a slide block 11 to slide in a chute 12, when the pressure in the pressure pipe 10 is balanced with the elastic force of the spring 13, the slide block 11 is balanced at the position, meanwhile, when the slide block 11 slides in the chute 12, the slide block 11 pulls a pull wire 14 to move towards the surface of a polygon, so that the pressure film 7 is stressed and bent, a gap formed by the pressure film 7 in the through hole 6 becomes larger, and after the high-temperature exhaust gas flowing through a shell bends the pressure film 7 of the carrier 4 at different positions, after the high-temperature tail gas reaches the next carrier 4, the pressure of the high-temperature tail gas is smaller than that of the last carrier 4, so that the bending degree of the pressure film 7 of the carrier 4 is smaller, the gap formed by the pressure film 7 is smaller, and the tail gas flows through the gap of the through hole 6 with the density being more and more dense; the purifying agent enhances the activity of three gases of CO, HC and NOx to promote the three gases to carry out certain oxidation-reduction chemical reaction, wherein CO is oxidized into colorless and nontoxic carbon dioxide gas at high temperature; HC compounds are oxidized at high temperatures to water H and carbon dioxide; NOx is reduced to nitrogen and oxygen; three harmful gases are changed into harmless gases, so that the automobile exhaust can be purified; the pressure membrane 7 is adopted to change the gaps of the through holes 6 of the carrier 4, so that the tail gas flows through the more and more dense through holes 6, the purification degree of the tail gas is stronger and stronger, the design of the same service life of the carrier 4 is kept, the situation that the carrier 4 which passes through the tail gas firstly is blocked by a chemical complex after purification, the carrier 4 at the rear part can also purify the tail gas continuously is avoided, but the three-way catalyst is seriously blocked and cannot work effectively; and along with the change of the tail gas, the tail gas can cause the pressure membrane 7 to vibrate, shake the chemical complex adhered to the elastic membrane, keep the cleanness of the carrier 4 and keep the capability of the carrier 4 for purifying the tail gas. The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a three way catalyst converter, includes inlet cone (1), shell (2), liner (3), carrier (4) and outlet cone (5), its characterized in that: an air inlet taper pipe (1) is arranged on one side of the shell (2), an air outlet taper pipe (5) is arranged on the other side of the shell (2), the shell (2) is communicated with the air inlet taper pipe (1), and the shell (2) is communicated with the air outlet taper pipe (5); a group of carriers (4) is arranged in the shell (2), and a group of liners (3) is arranged in the shell (2); a group of through holes (6) are formed in the group of carriers (4), and purifying agents are sprayed on the carriers (4); the through hole (6) is in a polygon shape, each surface of the polygon shape of the through hole (6) is provided with a pressure film (7), and a purifying agent is sprayed in the through hole (6); the side edges of the group of pressure membranes (7) are provided with openings (8), the outer surfaces of the pressure membranes (7) are sprayed with purifying agents, cavities (9) are arranged in the pressure membranes (7), and the pressure membranes (7) cover all sides of a polygon; the opening (8) is communicated with a pressure pipe (10); a group of sliding blocks (11) is arranged in the pressure pipe (10); the sliding block (11) is connected in the sliding groove (12) in a sliding mode, a spring (13) is fixedly connected between the sliding block (11) and the sliding groove (12), and pull wires (14) are symmetrically arranged on two sides of the sliding block (11); the pull wire (14) is fixedly connected with the pressure membrane (7);

a through groove (15) is arranged at the bottom of the sliding groove (12); the through groove (15) is communicated with an air duct (16); one end of the air duct (16) is arranged in the pressure membrane (7), and the other end of the air duct (16) is arranged in the carrier (4); an air collecting pipe (17) is arranged in the carrier (4); the air collecting pipe (17) is communicated with the air guide pipe (16), and the air collecting pipe (17) is obliquely arranged; a group of slots (18) are arranged on the gasket (3); a group of bearings (19) are rotatably connected between the group of carriers (4) and the group of gaskets (3);

the side surface of the carrier (4) is symmetrically hinged with cleaning rods (20); an air bag (21) is arranged at the end part of the cleaning rod (20), and the cleaning rod (20) is made of flexible materials;

a group of flexible needles (22) is arranged on the cleaning rod (20); a round hole (23) is arranged in the middle of the group of flexible needles (22); the round hole (23) is communicated with the air bag (21).

2. The three-way catalyst according to claim 1, characterized in that: the end surface of the flexible needle (22) is provided with two sections of inclined surfaces (24) with different inclination angles; a group of bulges (25) are arranged on the group of inclined planes (24); the end part of the bulge (25) is round, and the bulge (25) is made of flexible materials.