CN220487703U - Packaging device of three-way catalyst - Google Patents
Packaging device of three-way catalyst Download PDFInfo
- Publication number
- CN220487703U CN220487703U CN202322245167.1U CN202322245167U CN220487703U CN 220487703 U CN220487703 U CN 220487703U CN 202322245167 U CN202322245167 U CN 202322245167U CN 220487703 U CN220487703 U CN 220487703U
- Authority
- CN
- China
- Prior art keywords
- end cover
- cylinder body
- way catalyst
- air outlet
- outlet end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003054 catalyst Substances 0.000 title claims abstract description 37
- 238000004806 packaging method and process Methods 0.000 title abstract description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 14
- 239000003345 natural gas Substances 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a three-way catalyst packaging device, and relates to the technical field of manufacturing of three-way catalysts of automobiles; the device comprises a cylinder body with an air inlet end cover and an air outlet end cover, wherein the air inlet end cover is connected with an air inlet flange through an air inlet pipe, the air outlet end cover is connected with an air outlet flange, a three-way catalyst is arranged at the front part and the rear part in the cylinder body, and an oxygen sensor is arranged on the air outlet end cover; the cylinder body is provided with a mounting bracket component on the cylinder wall near one side of the air outlet end cover. Compared with the prior art, the utility model can solve the problems that the back pressure of the whole vehicle is increased, and the power generated by the vehicle is weakened and the energy consumption is increased when the packaging structure of the original three-way catalyst is applied to the vehicle type carrying the compressed natural gas engine.
Description
Technical Field
The utility model relates to the technical field of manufacturing of three-way catalytic converters of automobiles, in particular to a packaging device of a three-way catalytic converter.
Background
The ternary catalyst is the most important external purification device installed in the automobile exhaust system, and when high-temperature automobile exhaust passes through the ternary catalyst, harmful gas is changed into harmless gas, so that the automobile exhaust can be purified, and along with the acceleration of updating of automobile products and the discharge of national six-emission standard, the requirements on the structure of the ternary catalyst packaging device are also improved. The existing new vehicle type carrying the compressed natural gas engine is provided with a three-way catalyst packaging structure designed for meeting national six emission standards, as shown in fig. 1 and 2, and comprises a cylinder 103 provided with an air inlet end cover 101 and an air outlet end cover 102, wherein the air inlet end cover 101 is connected with an air inlet flange 104 through an air inlet pipe, the air outlet end cover 102 is connected with an air outlet flange 105, a three-way catalyst 106 is arranged at the front part in the cylinder 103, a particle catcher 107 is arranged at the rear part in the cylinder 103, and the three-way catalyst 106 and the particle catcher 107 are packaged in the cylinder 103 by using gaskets; a front oxygen sensor assembly 108 is arranged on the air inlet pipe, a rear oxygen sensor assembly 109, an exhaust temperature sensor assembly 110 and a first pressure sensor tube 111 are arranged on the cylinder wall of the cylinder 103 between the three-way catalyst 106 and the particle catcher 107, and a second pressure sensor tube 112 is arranged on the air outlet end cover 102; the air outlet end cover 102 is also connected with an exhaust flange 113 through an exhaust pipe, a mounting bracket 114 is arranged on the cylinder wall of the cylinder 103 at one side of the air outlet end cover 102, a heat shield 115 is arranged on the outer surface of the cylinder 103, and heat insulation cotton is arranged between the cylinder 103 and the heat shield 115; when the three-way catalyst packaging structure works, the air inlet flange 104 is connected with the exhaust manifold, the air outlet flange 105 is connected with the exhaust pipe, and the exhaust flange 113 is connected with the EGR valve. Because this new car type carries on compressed natural gas engine, and natural gas does not produce carbon particle in the combustion process, set up the particle trap in three way catalyst system and can make whole car backpressure increase, lead to the vehicle to produce the shortcoming that power weakens and the energy consumption increases, need to attach parts such as pressure sensor tube, exhaust temperature sensor assembly, exhaust pipe and exhaust flange in addition when setting up the particle trap, these parts all have greatly increased whole car's cost.
Disclosure of Invention
The utility model aims to provide a three-way catalyst packaging device which can solve the problems that when an original three-way catalyst packaging structure is applied to a vehicle type carrying a compressed natural gas engine, the back pressure of the whole vehicle is increased, and the power generated by the vehicle is weakened and the energy consumption is increased.
In order to solve the problems, the utility model adopts the following technical scheme: the three-way catalyst packaging device comprises a cylinder body with an air inlet end cover and an air outlet end cover, wherein the air inlet end cover is connected with an air inlet flange through an air inlet pipe, the air outlet end cover is connected with an air outlet flange, three-way catalysts are arranged at the front part and the rear part in the cylinder body, and an oxygen sensor is arranged on the air outlet end cover; the cylinder body is provided with a mounting bracket component on the cylinder wall near one side of the air outlet end cover.
Among the above technical schemes, more specific technical schemes may also be: and a gasket is arranged between the inner wall of the cylinder body and the three-way catalyst.
Further, a heat shield is arranged outside the cylinder body, the heat shield is fixed on the outer wall of the cylinder body through a heat shield bracket, and heat insulation cotton is arranged between the heat shield and the outer wall of the cylinder body.
Further, a plurality of support positioning blocks are arranged on the outer wall of the cylinder body, and the heat shield support is connected with the support positioning blocks through connecting bolts.
Further, the mounting bracket assembly comprises two short brackets and a long bracket, the two short brackets are fixed on the cylinder body, and two ends of the long bracket are connected with the two short brackets.
Further, a sensor nut for installing the oxygen sensor is arranged on the air outlet end cover.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects:
the packaging structure of the utility model increases the number of the three-way catalyst, cancels the arrangement of the particle catcher, greatly improves the conversion of harmful substances of the vehicle when being applied to the vehicle type carrying the compressed natural gas engine, and avoids the problems of high back pressure of the whole vehicle, low power generation and high energy consumption of the vehicle; meanwhile, components such as a pressure sensor tube, an exhaust temperature sensor assembly, an exhaust gas tube, an exhaust gas flange and the like attached to the original structure are omitted, so that the basic cost and the labor cost of parts are reduced; through actual installation and use, the utility model completely meets the requirements of national six-emission standard.
Drawings
FIG. 1 is a schematic diagram of a prior art three-way catalyst package;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic diagram of the structure of the present utility model;
FIG. 4 is a left side view of FIG. 3;
fig. 5 is a right side view of fig. 3.
Detailed Description
The utility model is further described in detail below with reference to the examples of the drawings:
the three-way catalyst packaging device as shown in fig. 3 to 5 comprises a cylinder body 1 with an air inlet end cover 2 and an air outlet end cover 3, wherein the air inlet end cover 2 is connected with an air inlet flange 5 through an air inlet pipe 4, the air outlet end cover 3 is connected with an air outlet flange 6, three-way catalysts are arranged at the front part and the rear part in the cylinder body 1, a gasket is arranged between the inner wall of the cylinder body 1 and the three-way catalysts, and an oxygen sensor is arranged on the air outlet end cover 3; the cylinder body 1 is provided with a mounting bracket assembly on the cylinder wall at one side of the near-air outlet end cover 3, the mounting bracket assembly comprises two short brackets 10 and a long bracket 11, the two short brackets 10 are fixed on the cylinder body 1, and two ends of the long bracket 11 are connected with the two short brackets 10.
A heat shield 7 is arranged outside the cylinder body 1, the heat shield 7 is fixed on the outer wall of the cylinder body 1 through a heat shield bracket 8, and heat insulation cotton is arranged between the heat shield 7 and the outer wall of the cylinder body 1; a plurality of support positioning blocks are arranged on the outer wall of the cylinder body 1, and the heat shield support 8 is connected with the support positioning blocks through connecting bolts 9.
The gas outlet end cover 3 is provided with a sensor nut 12 for mounting an oxygen sensor.
When the three-way catalyst is in operation, the three-way catalyst is connected with an engine manifold through the air inlet flange 5, is connected with an exhaust pipe through the air outlet flange 6, and exhaust air flow enters the cylinder body 1 through the air inlet flange 5, the air inlet pipe 4 and the air inlet end cover 2, and enters the exhaust pipe through the air outlet end cover 3 and the air outlet flange 6 after being catalyzed by the three-way catalyst at the front part and the rear part of the cylinder body 1.
The packaging structure of the utility model increases the number of the three-way catalyst, cancels the arrangement of the particle catcher, greatly improves the conversion of harmful substances of the vehicle when being applied to the vehicle type carrying the compressed natural gas engine, and avoids the problems of high back pressure of the whole vehicle, low power generation and high energy consumption of the vehicle; meanwhile, components such as a pressure sensor tube, an exhaust temperature sensor assembly, an exhaust gas tube, an exhaust gas flange and the like attached to the original structure are omitted, so that the basic cost and the labor cost of parts are reduced; through actual installation and use, the utility model completely meets the requirements of national six-emission standard.
According to the utility model, the mounting bracket assembly is connected with the air cylinder, so that the stability of the whole packaging device is improved, the heat radiation temperature of the heat insulation cotton and the heat insulation cover 7 to the periphery is reduced, and the heat insulation cover bracket 8 can prevent the heat insulation cover from falling off.
Claims (6)
1. A three way catalyst package device, characterized in that: the device comprises a cylinder body with an air inlet end cover and an air outlet end cover, wherein the air inlet end cover is connected with an air inlet flange through an air inlet pipe, the air outlet end cover is connected with an air outlet flange, a three-way catalyst is arranged at the front part and the rear part in the cylinder body, and an oxygen sensor is arranged on the air outlet end cover; the cylinder body is provided with a mounting bracket component on the cylinder wall near one side of the air outlet end cover.
2. The three-way catalyst package of claim 1, wherein: and a gasket is arranged between the inner wall of the cylinder body and the three-way catalyst.
3. The three-way catalyst package device according to claim 1 or 2, characterized in that: the heat insulation cover is arranged outside the cylinder body, the heat insulation cover is fixed on the outer wall of the cylinder body through a heat insulation cover bracket, and heat insulation cotton is arranged between the heat insulation cover and the outer wall of the cylinder body.
4. The three-way catalyst package of claim 3, wherein: the outer wall of the cylinder body is provided with a plurality of support positioning blocks, and the heat shield support is connected with the support positioning blocks through connecting bolts.
5. The three-way catalyst package apparatus of claim 4, wherein: the mounting bracket assembly comprises two short brackets and a long bracket, the two short brackets are fixed on the cylinder body, and two ends of the long bracket are connected with the two short brackets.
6. The three-way catalyst package apparatus of claim 5, wherein: and the air outlet end cover is provided with a sensor nut for installing the oxygen sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322245167.1U CN220487703U (en) | 2023-08-21 | 2023-08-21 | Packaging device of three-way catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322245167.1U CN220487703U (en) | 2023-08-21 | 2023-08-21 | Packaging device of three-way catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220487703U true CN220487703U (en) | 2024-02-13 |
Family
ID=89829227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322245167.1U Active CN220487703U (en) | 2023-08-21 | 2023-08-21 | Packaging device of three-way catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220487703U (en) |
-
2023
- 2023-08-21 CN CN202322245167.1U patent/CN220487703U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |