CN220955768U - DOC mixer - Google Patents
DOC mixer Download PDFInfo
- Publication number
- CN220955768U CN220955768U CN202322446015.8U CN202322446015U CN220955768U CN 220955768 U CN220955768 U CN 220955768U CN 202322446015 U CN202322446015 U CN 202322446015U CN 220955768 U CN220955768 U CN 220955768U
- Authority
- CN
- China
- Prior art keywords
- doc
- shaped connecting
- end cone
- connecting flange
- mixer
- 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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Links
- 238000003466 welding Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a DOC mixer, which comprises a V-shaped connecting flange, an end cone, a mixing guide plate and a DOC shell; the V-shaped connecting flange is positioned at the forefront end, the end cone is fixed at the rear end of the V-shaped connecting flange through welding, and various sensor seats are distributed on the outer surface of the V-shaped connecting flange; the mixing guide plate is fixed in the end cone inner cavity through welding and is not detachable, and circular holes with different diameters are distributed in the mixing guide plate; the DOC shell is fixed at the tail part of the end cone through welding and is not detachable; together, the DOC mixer is manufactured. The DOC mixer can improve the uniformity of the DOC inlet exhaust gas, improve the measurement accuracy of the sensor and the DOC conversion efficiency, further reduce the emission, and has compact structure, convenient manufacture and simpler installation and arrangement.
Description
Technical Field
The utility model belongs to the field of engine emission, and particularly relates to a DOC mixer.
Background
At present, the front end of the DOC is usually welded with a straight pipe with the diameter far smaller than that of the DOC shell, and various sensor seats are arranged on the DOC shell.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the DOC mixer which is simple and compact in structure, is beneficial to assembly, improves uniformity and conversion efficiency of DOC inlet waste gas, improves measurement accuracy of a sensor, and reduces emission.
The technical scheme of the utility model is as follows: the DOC mixer comprises a V-shaped connecting flange, an end cone, a mixing guide plate and a DOC shell, wherein the V-shaped connecting flange is positioned at the forefront end, and the end cone is fixed at the rear end of the V-shaped connecting flange through welding; the mixing guide plate is fixed in the end cone inner cavity through welding and is not detachable; the DOC shell is fixed at the tail part of the end cone through welding and is not detachable.
Preferably, various sensor seats are distributed on the outer surface of the end cone.
Preferably, round holes with different diameters are distributed on the mixing guide plate.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The V-shaped connecting flange is matched with the end cone, is applied to the DOC front end of the aftertreatment system, shortens the DOC front end size, has a compact structure, is convenient to install, and shortens the DOC front end size by 60%.
(2) The end cone inner cavity is added with a mixing guide plate, so that the gas mixing uniformity is improved.
(3) Various sensor seats are arranged on the outer surface of the end cone, so that the measurement accuracy, especially the measurement accuracy of the temperature sensor, is improved.
(4) Round holes with different diameters are distributed on the mixing guide plate, so that the conversion efficiency of the DOC is improved, and the emission is reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the DOC mixer structure of the present utility model.
In the figure: 1-V type flange, 2-end cone, 3-mixed guide plate, 4-DOC casing, 5-all kinds of sensor seats.
Description of the embodiments
The technical solutions of the present embodiment will be clearly and completely described below with reference to the drawings in the embodiment of the present utility model, and it is apparent that the described embodiment is only a part of examples of the present utility model, not all examples. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the DOC mixer mainly comprises a V-shaped connecting flange 1, an end cone 2, a mixing guide plate 3 and a DOC shell 4, wherein the V-shaped connecting flange 1 is positioned at the forefront end, the end cone 2 is fixed at the rear end of the V-shaped connecting flange 1 through welding, and various sensor seats 5 are distributed on the outer surface of the end cone 2; the mixing guide plate 3 is fixed in the inner cavity of the end cone 2 through welding and is not detachable, and circular holes with different diameters are distributed in the mixing guide plate; the DOC shell 4 is fixed at the tail part of the end cone 2 through welding and is not detachable; together, the DOC mixer is manufactured.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (3)
1. The DOC mixer is characterized by comprising a V-shaped connecting flange, an end cone, a mixing guide plate and a DOC shell, wherein the V-shaped connecting flange is positioned at the forefront end, and the end cone is fixed at the rear end of the V-shaped connecting flange through welding; the mixing guide plate is fixed in the end cone inner cavity through welding and is not detachable; the DOC shell is fixed at the tail part of the end cone through welding and is not detachable.
2. The DOC mixer according to claim 1, wherein the outer surface of the end cone is provided with various sensor seats.
3. A DOC mixer according to claim 1, characterised in that the mixing baffle is provided with circular holes of different diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322446015.8U CN220955768U (en) | 2023-09-09 | 2023-09-09 | DOC mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322446015.8U CN220955768U (en) | 2023-09-09 | 2023-09-09 | DOC mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220955768U true CN220955768U (en) | 2024-05-14 |
Family
ID=91021221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322446015.8U Active CN220955768U (en) | 2023-09-09 | 2023-09-09 | DOC mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220955768U (en) |
-
2023
- 2023-09-09 CN CN202322446015.8U patent/CN220955768U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |