CN210343461U - Gas taking device for exhaust aftertreatment device - Google Patents
Gas taking device for exhaust aftertreatment device Download PDFInfo
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- CN210343461U CN210343461U CN201921221888.6U CN201921221888U CN210343461U CN 210343461 U CN210343461 U CN 210343461U CN 201921221888 U CN201921221888 U CN 201921221888U CN 210343461 U CN210343461 U CN 210343461U
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- gas
- base
- gas taking
- pipeline
- aftertreatment device
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model relates to a gas taking device for an exhaust aftertreatment device, which comprises a gas taking base, a gas taking pipeline and a sensor, wherein the gas taking base is attached to the surface of a cylinder body below the horizontal plane of the cylinder axis of the aftertreatment device, and the gas taking base is arranged in an upward inclined manner; one end of the gas taking pipeline is provided with a sensor probe, the sensor probe extends into the gas taking base, and the other end of the gas taking pipeline is connected with a sensor; the bottom surface of the gas taking base is a profiling arc surface; the gas taking pipeline is arranged in an upward inclined mode. The utility model discloses can guarantee to get under the condition that gas base and pipeline tilt up arranged, it is lower to get the terminal height of gas pipeline for exhaust aftertreatment device accords with the boundary requirement of whole car more.
Description
Technical Field
The utility model relates to a get gas device for exhaust aftertreatment device belongs to diesel engine tail gas aftertreatment system field.
Background
As the national emission standard of the tail gas pollutants of the diesel vehicle is developed to the sixth European stage, the stricter emission standard has stricter definition on the tail gas pollutants. The exhaust gas post-treatment device is mainly used for treating harmful gases and particulate matters in vehicle exhaust, a NO sensor, a temperature sensor, a pressure sensor and other sensors are required to be arranged on the exhaust gas post-treatment device for monitoring the working state of exhaust gas, wherein the pressure sensor is mainly used for monitoring the pressure in front of and behind the DPF.
The probe end of the pressure sensor needs to be mounted inside the aftertreatment device, and a sensor mount is usually designed on the exhaust aftertreatment device, and then the sensor probe is mounted on the sensor mount. Because the automobile exhaust contains aqueous vapor, when the tail gas containing aqueous vapor passes through the gas taking pipeline, if the pipeline design is unreasonable, the aqueous vapor can be caused to accumulate in the pipeline, the freezing phenomenon is generated in the pipeline due to cold weather, the gas taking pipeline is blocked, and the pressure sensor fails. Therefore, in order to prevent the icing phenomenon caused by the accumulation of moisture in the pipeline, the air intake pipeline is usually arranged in an inclined upward direction.
In the current design, the axis of the air intake base of the pressure sensor is generally on a horizontal plane passing through the axis, and the bottom surface of the air intake base is tangent to the cylinder. Because the length of the pressure sensor and the connecting pipeline thereof is longer, and the arrangement direction of the connecting pipeline is also inclined upwards, the tail end height of the pipeline is easy to exceed the requirement of the whole vehicle arrangement.
Disclosure of Invention
An object of the utility model is to overcome the not enough of existence among the prior art, provide a get gas device for exhaust aftertreatment device, the device can guarantee to get under the condition that gas base and pipeline tilt up arranged, and the terminal height of gas pipeline is lower for exhaust aftertreatment device accords with the boundary requirement of whole car more.
According to the utility model provides a technical scheme: a gas taking device for an exhaust aftertreatment device comprises a gas taking base, a gas taking pipeline and a sensor, wherein the gas taking base is attached to the surface of a cylinder body below the horizontal plane of the axis of the cylinder body of the aftertreatment device and is arranged in an upward inclined mode; one end of the gas taking pipeline is provided with a sensor probe, the sensor probe extends into the gas taking base, and the other end of the gas taking pipeline is connected with a sensor; the bottom surface of the gas taking base is a profiling arc surface; the gas taking pipeline is arranged in an upward inclined mode.
Further, the highest point of the gas taking pipeline is lower than that of the post-treatment device cylinder.
Furthermore, a support frame is arranged in the middle of the gas taking pipeline.
Further, the gas taking base is made of stainless steel materials.
Further, the top of the air intake base is provided with a circle of chamfer.
Further, the aftertreatment device barrel is including the clamshell, DPF barrel and the DOC barrel that set gradually, get the gas base and set up in the clamshell lower surface, the sensor sets up in DOC barrel upper portion.
Further, a nozzle is arranged at the upper end of the clam shell.
Further, the lateral part of the DOC cylinder is provided with an air inlet pipe
Compared with the prior art, the utility model, have following advantage:
the end of the differential pressure pipeline of the utility model has lower height, which is more in line with the installation requirement of the whole vehicle; under the condition of the same length of the differential pressure pipeline and the same height of the tail end of the differential pressure pipeline, the inclination angle of the differential pressure pipeline is larger, and the probability of water accumulation of the pipeline can be reduced by the larger inclination angle of the pipeline.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the gas-taking base.
Fig. 3 is a schematic structural view of a conventional gas extraction device for an exhaust gas aftertreatment device.
Fig. 4 is a schematic structural view of a conventional gas-intake base.
Description of reference numerals: 1-gas taking base, 1' -traditional gas taking base, 2-gas taking pipeline, 3-sensor, 4-post-treatment device cylinder, 5-clam shell, 6-DPF cylinder, 7-DOC cylinder, 8-nozzle and 9-gas inlet pipe.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the gas intake base 1, the gas intake pipeline 2 and the sensor 3 installed on the post-processing device cylinder 4. As shown in fig. 1, the gas taking device for the exhaust aftertreatment device comprises a gas taking base 1, a gas taking pipeline 2 and a sensor 3, wherein the gas taking base 1 is attached to the surface of a cylinder body below the horizontal plane of the axis of a cylinder body 4 of the aftertreatment device, and the gas taking base 1 is arranged in an upward inclined manner; a sensor probe is arranged at one end of the gas taking pipeline 2, the sensor probe extends into the gas taking base 1, and the other end of the gas taking pipeline 2 is connected with a sensor 3; the bottom surface of the gas taking base 1 is a profiling arc surface; the gas taking pipeline 2 is arranged in an upward inclined mode.
The gas taking base 1 is arranged on the cylinder 4 for exhaust aftertreatment, and the bottom surface of the gas taking base 1 is a profiling arc surface, so that the arrangement position of the gas taking base can be lower than the horizontal plane passing through the axis of the cylinder 4 of the exhaust aftertreatment device, and the gas taking base 1 is only required to be ensured to be inclined upwards. In this state, the highest point of the gas taking pipeline 2 which is obliquely and upwardly arranged is far lower than that of the cylinder body of the exhaust aftertreatment device.
Fig. 2 is a gas taking base 1 designed by the patent, the bottom surface of the gas taking base 1 is an arc-shaped profiling surface, the gas taking base 1 can be matched with a cylinder 4 of an exhaust aftertreatment device, and meanwhile, the gas taking base 1 is ensured to be inclined upwards, in this state, the gas taking pipeline 2 which is inclined upwards is required in the arrangement direction of fig. 1, the highest point of the gas taking pipeline is far lower than that of the cylinder, and the boundary requirement of exhaust aftertreatment device on installation in the whole vehicle is met.
As shown in fig. 1, the highest point of the gas extraction pipeline 2 is lower than that of the post-treatment device cylinder.
Optionally, a support frame is arranged in the middle of the gas taking pipeline 2.
Further, the gas taking base 1 is made of stainless steel.
As shown in FIG. 2, a circle of chamfer is arranged at the top of the gas taking base 1 to prevent the sensor probe from being damaged.
Aftertreatment device barrel 4 is including the clamshell 5, DPF barrel 6 and the DOC barrel 7 that set gradually, it sets up in 5 lower surfaces of clamshell to get gas base 1, sensor 3 sets up in DOC barrel 7 upper portions. The upper end of the clam shell 5 is provided with a nozzle 8, and the side part of the DOC cylinder 7 is provided with an air inlet pipe 9.
Fig. 3 is a schematic structural diagram of a conventional gas extraction device for an exhaust aftertreatment device, and as shown in fig. 3, when a conventional gas extraction base 1 ' is placed on a cylinder 4 of the aftertreatment device, and since the conventional gas extraction base 1 ' is a plane, when the conventional gas extraction base 1 ' is placed on the cylinder 4 of the aftertreatment device, the plane where the axis is located must be higher than the horizontal plane passing through the axis of the cylinder 4 of the aftertreatment device, in this state, the highest point of the gas extraction pipeline 2 which is obliquely and upwardly arranged exceeds the highest point of the cylinder 4 of the aftertreatment device, and when the aftertreatment device is installed in a whole vehicle, an interference problem may occur.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (8)
1. The gas taking device for the exhaust aftertreatment device comprises a gas taking base (1), a gas taking pipeline (2) and a sensor (3), and is characterized in that the gas taking base (1) is attached to the surface of a cylinder body below the horizontal plane of the axis of a cylinder body (4) of the aftertreatment device, and the gas taking base (1) is arranged in an upward inclined manner; a sensor probe is arranged at one end of the gas taking pipeline (2), the sensor probe extends into the gas taking base (1), and the other end of the gas taking pipeline (2) is connected with a sensor (3); the bottom surface of the gas taking base (1) is a profiling arc surface; the gas taking pipeline (2) is arranged in an upward inclined mode.
2. The gas extraction device for an exhaust gas aftertreatment device according to claim 1, wherein the highest point of the gas extraction line (2) is lower than the highest point of the aftertreatment device cylinder.
3. The gas take-off device for an exhaust-gas aftertreatment device according to claim 1, characterized in that a support frame is provided in the middle of the gas take-off line (2).
4. The gas extraction device for an exhaust gas aftertreatment device according to claim 1, wherein the gas extraction base (1) is made of stainless steel.
5. The gas extraction device for an exhaust gas aftertreatment device according to claim 1, wherein the top of the gas extraction base (1) is provided with a chamfer.
6. The gas extraction device for the exhaust gas aftertreatment device according to claim 1, wherein the aftertreatment device cylinder (4) comprises a clam shell (5), a DPF cylinder (6) and a DOC cylinder (7) which are arranged in sequence, the gas extraction base (1) is arranged on the lower surface of the clam shell (5), and the sensor (3) is arranged on the upper part of the DOC cylinder (7).
7. The gas extraction device for an exhaust gas aftertreatment device according to claim 6, wherein a nozzle (8) is provided at the upper end of the clam shell (5).
8. The gas extraction device for an exhaust aftertreatment device according to claim 6, wherein an intake pipe (9) is provided to the side of the DOC cylinder (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921221888.6U CN210343461U (en) | 2019-07-31 | 2019-07-31 | Gas taking device for exhaust aftertreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921221888.6U CN210343461U (en) | 2019-07-31 | 2019-07-31 | Gas taking device for exhaust aftertreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210343461U true CN210343461U (en) | 2020-04-17 |
Family
ID=70217549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921221888.6U Active CN210343461U (en) | 2019-07-31 | 2019-07-31 | Gas taking device for exhaust aftertreatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210343461U (en) |
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2019
- 2019-07-31 CN CN201921221888.6U patent/CN210343461U/en active Active
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