CN210343457U - Gasoline engine three-way catalyst encapsulation - Google Patents
Gasoline engine three-way catalyst encapsulation Download PDFInfo
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- CN210343457U CN210343457U CN201920651974.4U CN201920651974U CN210343457U CN 210343457 U CN210343457 U CN 210343457U CN 201920651974 U CN201920651974 U CN 201920651974U CN 210343457 U CN210343457 U CN 210343457U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a gasoline engine three way catalyst converter encapsulation, including gasoline engine three way catalyst converter, gasoline engine three way catalyst converter one end is connected with the tail gas intake pipe, the gasoline engine three way catalyst converter other end is connected with the purification blast pipe, be provided with tail gas thermal converter between tail gas intake pipe and the gasoline engine three way catalyst converter, tail gas thermal converter includes converter shell and temperature sensor, the inside air cavity that is provided with of converter shell, four regions about tail gas thermal converter divide into about, two regions are the heating region about the tail gas thermal converter, two regions are cooling region about the tail gas thermal converter. The utility model discloses a be equipped with the hot converter of tail gas, be favorable to reaching the temperature control to the honeycomb catalyst carrier filter core of gasoline engine three way catalyst converter, make the temperature of the honeycomb catalyst carrier filter core of gasoline engine three way catalyst converter be in normal operating temperature within range all the time, improve the purifying effect to waste gas.
Description
Technical Field
The utility model relates to an automobile exhaust treatment facility technical field, in particular to gasoline engine three way catalyst converter encapsulation.
Background
The gasoline engine is provided with a three-way catalytic converter, TWC for short, which aims at reducing tail emission and protecting the environment, and is an important way and development direction for the gasoline engine to carry out post-machine purification and meet increasingly strict tail emission regulations.
However, when the three-way catalytic converter is used, the exhaust gas temperature is too low, the purification rate of the three-way catalytic converter is reduced, the exhaust gas temperature is too high, the honeycomb-shaped small pore structure of the carrier active coating of the three-way catalytic converter is damaged, the purification rate is reduced, and the early failure of the three-way catalytic converter at high temperature is caused.
Therefore, it is necessary to develop a three-way catalyst package for gasoline engines to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gasoline engine three way catalyst converter encapsulation through being equipped with the hot converter of tail gas, is favorable to reaching the temperature control to gasoline engine three way catalyst converter's honeycomb catalyst carrier filter core, makes the temperature of gasoline engine three way catalyst converter's honeycomb catalyst carrier filter core be in normal operating temperature within range all the time, improves the purifying effect to waste gas to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a gasoline engine three-way catalyst encapsulation comprises a gasoline engine three-way catalyst, wherein one end of the gasoline engine three-way catalyst is connected with a tail gas inlet pipe, the other end of the gasoline engine three-way catalyst is connected with a purification exhaust pipe, a tail gas heat converter is arranged between the tail gas inlet pipe and the gasoline engine three-way catalyst and comprises a converter shell and a temperature sensor, an air cavity is arranged in the converter shell, the tail gas heat converter is divided into an upper region, a lower region, a left region and a right region, the upper region and the lower region of the tail gas heat converter are heating regions, the left region and the right region of the tail gas heat converter are cooling regions, a plurality of heat conducting columns are arranged between the two heating regions, heating resistors are arranged in the heating regions, heat conducting fillers are filled in the heating, air-cooled import and air-cooled export have been seted up respectively to cooling zone both ends, air-cooled import and air-cooled export all are provided with the metal filter screen, cooling zone is inside to be provided with air-cooled machine.
Preferably, both ends of the heat conduction column penetrate through the air cavity and extend into the heating region, both ends of the cooling pipe penetrate through the air cavity and extend into the cooling region, and the heat conduction column and the cooling pipe are staggered and arranged in a parallel and non-intersecting mode.
Preferably, a heat insulation plate is arranged between each adjacent heating area and each adjacent cooling area, and the areas of the heating areas and the cooling areas are equal.
Preferably, gasoline engine three way catalyst converter includes the catalyst converter casing, catalyst converter casing inside is provided with honeycomb catalyst carrier filter core, honeycomb catalyst carrier filter core surface all is provided with the filter core shell, three seal groove has been seted up on filter core shell surface, and is three the inside piston ring that all is provided with of seal groove, catalyst converter casing inside is located honeycomb catalyst carrier filter core both ends and all is provided with seal baffle, piston ring surface and seal baffle surface phase-match set up, adjacent two the open position of piston ring differs 120 degrees and sets up.
Preferably, the pore density of the honeycomb catalyst carrier filter element at one end close to the tail gas inlet pipe is greater than that at the other end, and the pore diameter of the honeycomb catalyst carrier filter element at one end close to the tail gas inlet pipe is less than that at the other end.
Preferably, the heating resistor, the air cooling machine and the temperature sensor are connected with an automobile control system, and one end of a probe of the temperature sensor is arranged inside the inner wall of the honeycomb catalyst carrier filter element.
Preferably, the converter housing is made of a heat-insulating metal material, and the catalyst housing is made of stainless steel and a heat-resistant steel material.
The utility model discloses a technological effect and advantage:
1. through being equipped with tail gas thermal converter, be favorable to reaching the temperature control to the honeycomb catalyst carrier filter core of gasoline engine three way catalyst converter, make the temperature of the honeycomb catalyst carrier filter core of gasoline engine three way catalyst converter be in normal operating temperature range all the time, improve the purifying effect to waste gas.
2. The pore density of the end close to the tail gas inlet pipe through the honeycomb catalyst carrier filter element is greater than that of the other end, and the pore diameter of the end close to the tail gas inlet pipe is less than that of the other end, so that the honeycomb catalyst carrier filter element is effectively heated to the working temperature through tail gas heating, and the tail gas purification efficiency in the cold start process is improved.
3. Through being equipped with piston ring and seal baffle, there is the clearance effectual between preventing honeycomb catalyst carrier filter core and the catalyst converter casing, causes the unable purification of partial tail gas, improves tail gas purification efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a left side sectional view of the exhaust gas heat converter structure of the present invention;
fig. 3 is a schematic view of the structure of the part a in fig. 1 according to the present invention;
FIG. 4 is a left side view of the honeycomb catalyst carrier filter element structure of the present invention;
FIG. 5 is a right side view of the honeycomb catalyst carrier filter cartridge arrangement of the present invention;
fig. 6 is a schematic view of the structure of the part B in fig. 4 according to the present invention;
fig. 7 is a schematic diagram of the electric control flow structure of the present invention.
In the figure: 1. a three-way catalyst of a gasoline engine; 2. a tail gas inlet pipe; 3. purifying the exhaust pipe; 4. an exhaust gas heat converter; 5. a converter housing; 6. a temperature sensor; 7. an air cavity; 8. a heating zone; 9. a cooling zone; 10. a heat-conducting column; 11. a heating resistor; 12. a thermally conductive filler; 13. a cooling tube; 14. an air-cooled inlet; 15. an air-cooled outlet; 16. a metal screen; 17. an air cooling machine; 18. a heat insulation plate; 19. a catalyst housing; 20. a honeycomb catalyst carrier filter element; 21. a filter element housing; 22. a sealing groove; 23. a piston ring; 24. and sealing the baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a gasoline engine three-way catalyst encapsulation as shown in figures 1-7, which comprises a gasoline engine three-way catalyst 1, one end of the gasoline engine three-way catalyst 1 is connected with a tail gas inlet pipe 2, the other end of the gasoline engine three-way catalyst 1 is connected with a purification exhaust pipe 3, a tail gas heat converter 4 is arranged between the tail gas inlet pipe 2 and the gasoline engine three-way catalyst 1, the temperature control of a honeycomb catalyst carrier filter element 20 of the gasoline engine three-way catalyst 1 is facilitated by arranging the tail gas heat converter 4, the temperature of the honeycomb catalyst carrier filter element 20 of the gasoline engine three-way catalyst 1 is always in a normal working temperature range, the purification effect of waste gas is improved, the tail gas heat converter 4 comprises a converter shell 5 and a temperature sensor 6, an air cavity 7 is arranged inside the converter shell 5, the tail gas thermal converter 4 is divided into an upper region, a lower region, a left region and a right region, the upper region and the lower region of the tail gas thermal converter 4 are both heating regions 8, the left region and the right region of the tail gas thermal converter 4 are both cooling regions 9, a plurality of heat conduction columns 10 are arranged between the two heating regions 8, heating resistors 11 are arranged inside the heating regions 8, heat conduction fillers 12 are filled inside the heating regions 8, the heat transfer speed of the heating resistors 11 is increased by arranging the heat conduction fillers 12, a cooling pipe 13 is arranged between the two cooling regions 9, an air cooling inlet 14 and an air cooling outlet 15 are respectively arranged at two ends of the cooling regions 9, metal filter screens 16 are respectively arranged at the air cooling inlet 14 and the air cooling outlet 15, dust is prevented from entering the cooling regions 9 by arranging the metal filter screens 16, and an air cooling machine, the air cooling machine 17, the heating resistor 11 and the automobile power supply form a parallel circuit.
Furthermore, in the above technical solution, both ends of the heat conduction column 10 penetrate through the air cavity 7 and extend into the heating region 8, both ends of the cooling tube 13 penetrate through the air cavity 7 and extend into the cooling region 9, the heat conduction column 10 and the cooling tube 13 are staggered and arranged in parallel and non-intersecting manner, which is beneficial to preventing tail gas from influencing the tail gas flow speed under the action of the heat conduction column 10 and the cooling tube 13;
further, in the above technical solution, a heat insulation plate 18 is disposed between the adjacent heating region 8 and the adjacent cooling region 9, so as to prevent the heating region 8 and the cooling region 9 from being restricted with each other, and the areas of the heating region 8 and the cooling region 9 are equal;
further, in the above technical solution, the gasoline engine three-way catalyst 1 includes a catalyst casing 19, a honeycomb catalyst carrier filter element 20 is disposed inside the catalyst casing 19, a filter element housing 21 is disposed on the surface of the honeycomb catalyst carrier filter element 20, three sealing grooves 22 are disposed on the surface of the filter element housing 21, piston rings 23 are disposed inside the three sealing grooves 22, sealing baffles 24 are disposed at two ends of the honeycomb catalyst carrier filter element 20 inside the catalyst casing 19, the surfaces of the piston rings 23 and the sealing baffles 24 are arranged in a surface matching manner, and by providing the piston rings 23 and the sealing baffles 24, a gap is effectively prevented from being formed between the honeycomb catalyst carrier filter element 20 and the catalyst casing 19, so that partial exhaust gas cannot be purified, the exhaust gas purification efficiency is improved, the opening positions of two adjacent piston rings 23 are different by 120 degrees, through the arrangement of 120 degrees, the opening position of each piston ring 23 is effectively staggered, and the sealing is carried out to the maximum extent;
further, in the above technical solution, the pore density of one end of the honeycomb catalyst carrier filter element 20 close to the exhaust gas inlet pipe 2 is greater than the pore density of the other end, and the pore diameter of one end of the honeycomb catalyst carrier filter element 20 close to the exhaust gas inlet pipe 2 is smaller than the pore diameter of the other end, so that the honeycomb catalyst carrier filter element 20 is effectively heated to the working temperature by exhaust gas heating, and the exhaust gas purification efficiency in the cold start process is improved;
furthermore, in the above technical scheme, the heating resistor 11, the air cooling machine 17 and the temperature sensor 6 are all connected with an automobile control system, and one end of the probe of the temperature sensor 6 is arranged in the inner wall of the honeycomb catalyst carrier filter element 20, so that the temperature of the honeycomb catalyst carrier filter element 20 can be accurately detected without being influenced by the temperature of the exhaust gas;
further, in the above technical solution, the converter housing 5 is made of a heat-insulating metal material, and the catalyst housing 19 is made of stainless steel and heat-resistant steel material.
This practical theory of operation:
referring to the attached drawings 1-2 and 7 of the specification, when the device is used, when a gasoline engine is started, the temperature of a honeycomb catalyst carrier filter element 20 is detected and detected through a temperature sensor 6, when the detected temperature is lower than the lowest temperature required by the operation of a gasoline engine three-way catalytic converter 1, a vehicle control system controls a heating resistor 11 to be electrified, the heating resistor 11 heats a heat conducting filler 12 in a heating area 8, heat transferred by the heat conducting filler 12 is transferred to a heat conducting column 10, exhaust gas passing through an air cavity 7 is heated through the heat conducting column 10, the temperature of the exhaust gas is increased, the temperature of the honeycomb catalyst carrier filter element 20 of the gasoline engine three-way catalytic converter 1 is increased to be within the operating temperature, the vehicle control system controls the heating resistor 11 to be powered off, heating is stopped, when the gasoline engine is used for a long time, the temperature of the honeycomb catalyst carrier filter element 20 of the gasoline engine three, the temperature sensor 6 sends the detected temperature to an automobile control system, the automobile control system controls the air cooling machine 17 to start, the exhaust gas in the air cavity 7 is subjected to air cooling treatment through the cooling area 9 and the air cooling pipe, so that the exhaust gas temperature is reduced, the temperature of the honeycomb catalyst carrier filter element 20 is reduced, the temperature of the exhaust gas is effectively controlled through the exhaust gas heat converter 4, the temperature of the honeycomb catalyst carrier filter element 20 of the gasoline engine three-way catalyst 1 is effectively controlled, the temperature of the honeycomb catalyst carrier filter element 20 of the gasoline engine three-way catalyst 1 is always in a normal working temperature range, and the purification effect of the exhaust gas is improved;
referring to the attached drawings 3-6 of the specification, the pore density of one end, close to the tail gas inlet pipe 2, of the honeycomb catalyst carrier filter element 20 is larger than that of the other end of the honeycomb catalyst carrier filter element, the pore diameter of one end, close to the tail gas inlet pipe 2, of the honeycomb catalyst carrier filter element 20 is smaller than that of the other end of the honeycomb catalyst carrier filter element, the honeycomb catalyst carrier filter element 20 is effectively heated to the working temperature through tail gas heating, the tail gas purification efficiency in the cold starting process is improved, and due to the fact that a gap exists between the honeycomb catalyst carrier filter element 20 and the catalyst shell 19, partial tail gas cannot be purified, and the tail gas purification.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. The utility model provides a gasoline engine three way catalyst converter encapsulation, includes gasoline engine three way catalyst converter (1), its characterized in that: one end of the gasoline engine three-way catalytic converter (1) is connected with a tail gas inlet pipe (2), the other end of the gasoline engine three-way catalytic converter (1) is connected with a purification exhaust pipe (3), a tail gas heat converter (4) is arranged between the tail gas inlet pipe (2) and the gasoline engine three-way catalytic converter (1), the tail gas heat converter (4) comprises a converter shell (5) and a temperature sensor (6), an air cavity (7) is arranged in the converter shell (5), the tail gas heat converter (4) is divided into an upper region, a lower region, a left region and a right region, the upper region and the lower region of the tail gas heat converter (4) are heating regions (8), the left region and the right region of the tail gas heat converter (4) are cooling regions (9), a plurality of heat conduction columns (10) are arranged between the two heating regions (8), and heating, heating region (8) inside packing has heat conduction filler (12), two be provided with cooling tube (13) between cooling region (9), forced air cooling import (14) and forced air cooling export (15) have been seted up respectively to cooling region (9) both ends, forced air cooling import (14) and forced air cooling export (15) all are provided with metal filter screen (16), cooling region (9) inside is provided with air-cooled machine (17).
2. The gasoline engine three-way catalyst package of claim 1, wherein: the heat conduction column (10) both ends all run through air cavity (7) and extend to inside heating region (8), cooling tube (13) both ends run through air cavity (7) and extend to inside cooling region (9), heat conduction column (10) and cooling tube (13) crisscross and parallel non-intersect setting.
3. The gasoline engine three-way catalyst package of claim 1, wherein: and a heat insulation plate (18) is arranged between the adjacent heating area (8) and the adjacent cooling area (9), and the areas of the heating area (8) and the cooling area (9) are equal.
4. The gasoline engine three-way catalyst package of claim 1, wherein: gasoline engine three way catalyst converter (1) includes catalyst converter casing (19), inside honeycomb catalyst carrier filter core (20) that is provided with of catalyst converter casing (19), honeycomb catalyst carrier filter core (20) surface all is provided with filter core shell (21), three seal groove (22), three have been seted up on filter core shell (21) surface seal groove (22) inside piston ring (23) that all is provided with, inside honeycomb catalyst carrier filter core (20) both ends that are located of catalyst converter casing (19) all are provided with seal baffle (24), piston ring (23) surface and seal baffle (24) surface phase-match set up, adjacent two the open position of piston ring (23) differs the setting of 120 degrees.
5. The gasoline engine three-way catalyst package of claim 4, wherein: the hole density of one end, close to the tail gas inlet pipe (2), of the honeycomb catalyst carrier filter element (20) is larger than that of the other end of the honeycomb catalyst carrier filter element, and the hole diameter of one end, close to the tail gas inlet pipe (2), of the honeycomb catalyst carrier filter element (20) is smaller than that of the other end of the honeycomb catalyst carrier filter element.
6. The gasoline engine three-way catalyst package of claim 1, wherein: heating resistor (11), air-cooled machine (17) and temperature sensor (6) all are connected with vehicle control system, the probe one end of temperature sensor (6) is located the inside setting of the inner wall of honeycomb catalyst carrier filter core (20).
7. The gasoline engine three-way catalyst package of claim 4, wherein: the converter shell (5) is made of heat-insulating metal materials, and the catalyst shell (19) is made of stainless steel and heat-resistant steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920651974.4U CN210343457U (en) | 2019-05-08 | 2019-05-08 | Gasoline engine three-way catalyst encapsulation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920651974.4U CN210343457U (en) | 2019-05-08 | 2019-05-08 | Gasoline engine three-way catalyst encapsulation |
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| CN210343457U true CN210343457U (en) | 2020-04-17 |
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| CN201920651974.4U Active CN210343457U (en) | 2019-05-08 | 2019-05-08 | Gasoline engine three-way catalyst encapsulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632588A (en) * | 2020-06-09 | 2020-09-08 | 合肥神舟催化净化器股份有限公司 | Preparation method of automobile exhaust purification catalyst |
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- 2019-05-08 CN CN201920651974.4U patent/CN210343457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632588A (en) * | 2020-06-09 | 2020-09-08 | 合肥神舟催化净化器股份有限公司 | Preparation method of automobile exhaust purification catalyst |
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