CN217813648U - Exhaust aftertreatment device's subassembly that admits air - Google Patents
Exhaust aftertreatment device's subassembly that admits air Download PDFInfo
- Publication number
- CN217813648U CN217813648U CN202221912497.0U CN202221912497U CN217813648U CN 217813648 U CN217813648 U CN 217813648U CN 202221912497 U CN202221912497 U CN 202221912497U CN 217813648 U CN217813648 U CN 217813648U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- air
- rod
- mounting
- mounting rod
- 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.)
- Active
Links
Images
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides an air inlet assembly of exhaust aftertreatment device, its includes air intake baffle, intake pipe subassembly and will the intake pipe subassembly is fixed support on the air intake baffle, air intake baffle includes installation face and runs through the inlet port of installation face, the intake pipe subassembly includes the air inlet cavity, the support includes first installation pole, with the relative second installation pole of first installation pole, connect first installation pole with the connecting rod of second installation pole, and at least part is located first installation pole, second installation pole and the air current opening between the connecting rod, the air current opening with the air inlet cavity intercommunication, the air current that flows in the air inlet cavity is configured to flow in the inlet port after passing the air current opening.
Description
Technical Field
The utility model relates to a tail gas aftertreatment device's subassembly that admits air belongs to engine exhaust aftertreatment technical field.
Background
An air intake assembly of an engine exhaust aftertreatment device generally includes an air intake pipe, which is generally provided with a plurality of air flow through holes on a wall surface thereof, so that air flows out of the air intake pipe through the air flow through holes. However, such designs tend to result in a higher back pressure. In order to reduce the back pressure, those skilled in the art may increase the size of the air flow through holes or the number of the air flow through holes, which in turn may cause the structural strength of the air inlet pipe to be weakened and may not meet the design requirements.
Accordingly, there is a need for improvements in the prior art air intake assemblies.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a better and lower tail gas aftertreatment device's of backpressure subassembly that admits air of structural strength.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an air inlet assembly of an exhaust gas aftertreatment device comprises an air inlet baffle, an air inlet pipe assembly and a support, wherein the air inlet pipe assembly is fixed on the air inlet baffle, the air inlet baffle comprises a mounting surface and an air inlet hole penetrating through the mounting surface, the air inlet pipe assembly comprises an air inlet cavity, the support comprises a first mounting rod, a second mounting rod opposite to the first mounting rod, a connecting rod connecting the first mounting rod and the second mounting rod, and an air flow opening at least partially located between the first mounting rod, the second mounting rod and the connecting rod, the air flow opening is communicated with the air inlet cavity, and air flowing into the air inlet cavity is configured to flow into the air inlet hole after passing through the air flow opening.
As a further improved technical scheme of the utility model, the support is the U type.
As a further improved technical solution of the present invention, the first mounting rod is parallel to the second mounting rod, and the connecting rod is connected to the bottom of the first mounting rod and the bottom of the second mounting rod.
As the utility model discloses further modified technical scheme, the connecting rod is skew outwards first installation pole and second installation pole, connecting rod welded fastening in air intake baffle's installation face.
As a further improved technical solution of the present invention, the first mounting rod, the second mounting rod and the connecting rod are steel pipes with a circular cross section.
As a further improved technical solution of the present invention, the intake pipe assembly includes an intake pipe and a base fixedly connected to the intake pipe, the base includes at least a portion accommodating the mounting ring of the intake pipe and a plurality of extensions extending from the mounting ring, the plurality of extensions include a first extension, a second extension spaced apart from the first extension, and an inverted U-shaped opening between the first extension and the second extension, the first mounting rod is fixed to the first extension, and the second mounting rod is fixed to the second extension.
As the utility model discloses further modified technical scheme, the intake pipe with the collar welded fastening, first installation pole welded fastening in first extension, second installation pole welded fastening in the second extension.
As a further improved technical solution of the present invention, the base further includes a first flanging portion that is bent at two edges of the first extending portion that are relatively arranged and a second flanging portion that is bent at two edges of the second extending portion that are relatively arranged, the first mounting rod is located between the first flanging portions, and the second mounting rod is located between the second flanging portions.
As a further improved technical solution of the present invention, the first extension portion is provided with a portion close to the mounting surface of the air intake baffle and the first terminal portion of the mounting surface, the second extension portion is provided with a portion close to the mounting surface of the air intake baffle and the second terminal portion of the mounting surface.
As a further improved technical scheme of the utility model, the support is a plurality of and follows the circumference interval distribution of air inlet pipe assembly, first extension and the second extension is a plurality of and follows the circumference interval distribution of air inlet pipe assembly.
Compared with the prior art, the utility model discloses a support will admit air on the subassembly is fixed in the baffle of admitting air, when guaranteeing structural strength, is favorable to enlarging the area of admitting air to reduce the backpressure.
Drawings
Fig. 1 is a schematic perspective view of an intake assembly of an exhaust gas aftertreatment device according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of fig. 1.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, wherein features of the embodiments, if any, can be combined with each other without conflict. When the description refers to the accompanying drawings, the same numbers or symbols in different drawings represent the same or similar elements unless otherwise specified. The matters described in the following exemplary embodiments do not represent all embodiments of the present invention, but rather they are merely examples of products consistent with the present invention as recited in the claims of the present invention.
The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. It should be understood that the terms "first," "second," and the like as used in the description and in the claims of the present invention do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
Referring to fig. 1 and 2, the present invention discloses an air intake assembly of a tail gas post-treatment device, which includes an air intake baffle 1, an air intake pipe assembly 2, and a bracket 3 for fixing the air intake pipe assembly 2 on the air intake baffle 1. The air intake baffle 1 comprises a mounting surface 11 and an air intake hole 10 penetrating through the mounting surface 11.
The air inlet tube assembly 2 comprises an air inlet cavity 20. In the illustrated embodiment of the present invention, the intake pipe assembly 2 includes an intake pipe 21 and a base 22 fixedly connected to the intake pipe 21. The inlet chamber 20 is jointly formed by the inlet pipe 21 and the base 22. The base portion 22 includes a mounting ring 221 that at least partially houses the air inlet pipe 21 and a plurality of extensions 222 that extend downwardly from the mounting ring 221. In the illustrated embodiment of the present invention, the air inlet pipe 21 is welded to the mounting ring 221. The plurality of extending portions 222 include a first extending portion 222a, a second extending portion 222b spaced apart from the first extending portion 222a, and an inverted U-shaped opening 222c between the first extending portion 222a and the second extending portion 222b. In the illustrated embodiment of the present invention, the first extension portion 222a and the second extension portion 222b are both distributed at intervals along the circumferential direction of the intake pipe assembly 2.
The base 22 further includes a first flange portion 222a1 bent from two edges of the first extending portion 222a opposite to each other and a second flange portion 222b1 bent from two edges of the second extending portion 222b opposite to each other. The first extension portion 222a is provided with a first terminal portion 222a2 which is close to the mounting surface 11 of the intake baffle 1 and does not contact with the mounting surface 11, and the second extension portion 222b is provided with a second terminal portion 222b2 which is close to the mounting surface 11 of the intake baffle 1 and does not contact with the mounting surface 11.
The bracket 3 is U-shaped and includes a first mounting rod 31, a second mounting rod 32 opposite to the first mounting rod 31, a connecting rod 33 connecting the first mounting rod 31 and the second mounting rod 32, and an airflow opening 30 at least partially located between the first mounting rod 31, the second mounting rod 32 and the connecting rod 33. The airflow opening 30 communicates with the inlet chamber 20. The airflow flowing into the intake cavity 20 is configured to flow into the intake aperture 10 after passing through the airflow opening 30 and to flow downstream exhaust aftertreatment substrates such as Diesel Oxidation Catalysts (DOCs), diesel particulate traps (DPFs), and Selective Catalytic Reducers (SCRs). The first mounting rod 31 and the second mounting rod 32 are parallel to each other, and the connecting rod 33 connects the bottom of the first mounting rod 31 and the bottom of the second mounting rod 32. The connecting rod 33 is outwardly deviated from the first mounting rod 31 and the second mounting rod 32, and the connecting rod 33 is welded and fixed to the mounting surface 11 of the intake baffle 1. The first mounting rod 31, the second mounting rod 32 and the connecting rod 33 are all steel pipes with circular cross sections to improve structural strength. In the illustrated embodiment of the present invention, the brackets 3 are a plurality of brackets and are circumferentially spaced along the intake pipe assembly 2.
In the illustrated embodiment of the present invention, the first mounting rod 31 is fixed to the first extension portion 222a, and the second mounting rod 32 is fixed to the second extension portion 222b. Specifically, the first mounting rod 31 is welded and fixed to the first extension portion 222a, and the second mounting rod 32 is welded and fixed to the second extension portion 222b. The first mounting rod 31 is located between the first flanged portions 222a1, and the second mounting rod 32 is located between the second flanged portions 222b1.
Compared with the prior art, the air inlet assembly 2 is fixed on the air inlet baffle plate 1 through the support 3, the support 3 can support the air inlet assembly 2, and the fatigue strength of the air inlet assembly 2 is improved; the structure strength is improved, and meanwhile, the air inlet area is favorably enlarged, so that the back pressure is reduced. In addition, by not contacting the first end portion 222a2 of the first extension portion 222a with the mounting surface 11 and by not contacting the second end portion 222b2 of the second extension portion 222b with the mounting surface 11, on one hand, the impact of the airflow on the air intake pipe assembly 2 is reduced, so that the risk of deformation and even cracking of the air intake pipe assembly 2 is reduced; on the other hand, the air inlet area is further enlarged, and the back pressure is reduced.
The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical personnel in the technical field, and although the present specification has described the present invention in detail with reference to the above embodiments, the skilled personnel in the art should understand that the technical personnel in the technical field can still modify or substitute the present invention, and all the technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides an inlet assembly of tail gas aftertreatment device which characterized in that: the air inlet assembly comprises an air inlet baffle plate, an air inlet pipe assembly and a support for fixing the air inlet pipe assembly on the air inlet baffle plate, the air inlet baffle plate comprises an installation surface and an air inlet hole penetrating through the installation surface, the air inlet pipe assembly comprises an air inlet cavity, the support comprises a first installation rod, a second installation rod opposite to the first installation rod, a connecting rod for connecting the first installation rod and the second installation rod, and an air flow opening at least partially located between the first installation rod, the second installation rod and the connecting rod, the air flow opening is communicated with the air inlet cavity, and air flowing into the air inlet cavity is configured to flow into the air inlet hole after passing through the air flow opening.
2. The air intake assembly of claim 1, wherein: the support is U-shaped.
3. The intake assembly of claim 2, wherein: the first mounting rod and the second mounting rod are parallel to each other, and the connecting rod is connected with the bottom of the first mounting rod and the bottom of the second mounting rod.
4. The air intake assembly of claim 3, wherein: the connecting rod outwards deviates from the first mounting rod and the second mounting rod, and the connecting rod is welded and fixed on the mounting surface of the air inlet baffle.
5. The air intake assembly of claim 1, wherein: the first mounting rod, the second mounting rod and the connecting rod are all steel pipes with round cross sections.
6. The air intake assembly of claim 4, wherein: the air inlet pipe assembly comprises an air inlet pipe and a base portion fixedly connected with the air inlet pipe, the base portion comprises a mounting ring at least partially accommodating the air inlet pipe and a plurality of extending portions extending from the mounting ring, the extending portions comprise first extending portions, second extending portions arranged at intervals with the first extending portions, and inverted U-shaped openings located between the first extending portions and the second extending portions, the first mounting rod is fixed to the first extending portions, and the second mounting rod is fixed to the second extending portions.
7. The air intake assembly of claim 6, wherein: the air inlet pipe is welded and fixed with the mounting ring, the first mounting rod is welded and fixed on the first extending portion, and the second mounting rod is welded and fixed on the second extending portion.
8. The air intake assembly of claim 7, wherein: the base part further comprises a first flanging part and a second flanging part, the first flanging part is bent from two opposite edges of the first extending part, the second flanging part is bent from two opposite edges of the second extending part, the first mounting rod is located between the first flanging parts, and the second mounting rod is located between the second flanging parts.
9. The air intake assembly of claim 6, wherein: the first extending portion is provided with a first tail end portion which is close to the mounting surface of the air inlet baffle and is not in contact with the mounting surface, and the second extending portion is provided with a second tail end portion which is close to the mounting surface of the air inlet baffle and is not in contact with the mounting surface.
10. The air intake assembly of claim 6, wherein: the support be a plurality of and follow the circumference interval distribution of intake pipe subassembly, first extension and the second extension is a plurality of and follows the circumference interval distribution of intake pipe subassembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221912497.0U CN217813648U (en) | 2022-07-21 | 2022-07-21 | Exhaust aftertreatment device's subassembly that admits air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221912497.0U CN217813648U (en) | 2022-07-21 | 2022-07-21 | Exhaust aftertreatment device's subassembly that admits air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217813648U true CN217813648U (en) | 2022-11-15 |
Family
ID=83968848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221912497.0U Active CN217813648U (en) | 2022-07-21 | 2022-07-21 | Exhaust aftertreatment device's subassembly that admits air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217813648U (en) |
-
2022
- 2022-07-21 CN CN202221912497.0U patent/CN217813648U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5985647B2 (en) | Exhaust treatment device having an integral attachment | |
| CN100376768C (en) | Engine exhaust muffler with exhaust emission control function | |
| CN113464250A (en) | Vehicle exhaust system mixer with flexible dosing device mount | |
| CN217813648U (en) | Exhaust aftertreatment device's subassembly that admits air | |
| KR20040045366A (en) | Exhaust gas recirculation device of internal combustion engine | |
| CN115111038A (en) | Exhaust aftertreatment device's subassembly that admits air | |
| JP2012082742A (en) | Exhaust emission control device | |
| KR101823066B1 (en) | The vortex generating member for discharging exhaust gas | |
| CN211777665U (en) | Mixing pipe assembly and exhaust gas aftertreatment device | |
| ZA200007758B (en) | Device for stabilising the flow in the exhaust line of an internal combustion engine. | |
| CN213654965U (en) | Box type tail gas aftertreatment packaging | |
| CN212003323U (en) | Tail gas aftertreatment encapsulation | |
| CN112664305A (en) | End cone and tail gas aftertreatment package | |
| CN214145652U (en) | End cone and tail gas aftertreatment package | |
| CN111287825A (en) | Mixing pipe assembly and exhaust gas aftertreatment device | |
| CN215860404U (en) | Tail gas aftertreatment encapsulation | |
| CN213654964U (en) | Box type tail gas aftertreatment packaging | |
| JP2005163621A (en) | Catalytic converter | |
| CN219826967U (en) | Tail gas aftertreatment device | |
| RU78869U1 (en) | SILENCER RECEPTION PIPE WITH NEUTRALIZER | |
| CN111365109A (en) | Tail gas aftertreatment encapsulation | |
| CN216477540U (en) | Tail gas aftertreatment device | |
| CN221322526U (en) | Tail gas aftertreatment device | |
| CN214616720U (en) | Turbulent flow structure and DPF active regeneration device | |
| CN210088224U (en) | Single clamp connection mechanism and catalytic oxidation device comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |