CN214464518U

CN214464518U - Tail gas aftertreatment encapsulation

Info

Publication number: CN214464518U
Application number: CN202120327130.1U
Authority: CN
Inventors: 孙辉; 刘豫辉; 章凯
Original assignee: Tenneco Suzhou Emission System Co Ltd
Current assignee: Tenneco Suzhou Emission System Co Ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-10-22
Anticipated expiration: 2031-02-04

Abstract

An exhaust aftertreatment package includes a first aftertreatment component, a second aftertreatment component, a mixer component, and a third aftertreatment component. The first aftertreatment component includes a first housing and a first aftertreatment carrier. The second aftertreatment component includes a second housing and a second aftertreatment carrier. The third aftertreatment assembly includes a third housing and a third aftertreatment carrier. The exhaust aftertreatment package also includes a first bracket assembly adjustably mounted on the first housing and a second bracket assembly non-adjustably mounted on the third housing. Compared with the prior art, the utility model can flexibly adjust the position and angle of the first mounting bracket through the first bracket component, thereby facilitating the installation; the sensor arranged nearby can be prevented from being adversely affected by the second support component with a fixed position.

Description

Tail gas aftertreatment encapsulation

Technical Field

The utility model relates to a tail gas aftertreatment encapsulation belongs to engine exhaust aftertreatment technical field.

Background

Existing exhaust aftertreatment packages are generally in a linear type, a U-type, an S-type, and the like, wherein the linear type exhaust aftertreatment package generally comprises a first aftertreatment component, a second aftertreatment component, a mixer component, and a third aftertreatment component. The first aftertreatment component is a diesel oxidation catalyst, the second aftertreatment component is a diesel particulate trap, and the third aftertreatment component is a selective catalytic reduction agent. The exhaust aftertreatment package typically includes a first bracket secured to the first aftertreatment component and a second bracket secured to the third aftertreatment component, although there is room for improvement in such bracket designs.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tail gas aftertreatment encapsulation convenient to installation.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an exhaust aftertreatment package comprising a first aftertreatment component, a second aftertreatment component, a mixer component connected downstream of the second aftertreatment component, and a third aftertreatment component connected downstream of the mixer component, wherein the first aftertreatment component, the second aftertreatment component, the mixer component, and the third aftertreatment component are arranged in axial alignment along the exhaust aftertreatment package, the first aftertreatment assembly includes a first housing and a first aftertreatment carrier encapsulated in the first housing, the second aftertreatment assembly includes a second housing and a second aftertreatment carrier encapsulated in the second housing, the second aftertreatment carrier is located downstream of the first aftertreatment carrier in an axial direction of the exhaust aftertreatment package, the third aftertreatment assembly comprises a third housing and a third aftertreatment carrier encapsulated in the third housing; the tail gas aftertreatment encapsulation is still including installing adjustable position first bracket component on the first casing and install unadjustable position second bracket component on the third casing, first bracket component with the second bracket component is used for with the tail gas aftertreatment encapsulation is installed in the automobile body support.

As the utility model discloses further modified technical scheme, first support subassembly is including installing first bandage and welded fastening on the first casing are in first installing support on the first bandage, first installing support be equipped with for with the first mounting hole that automobile body support links to each other.

As a further improved technical solution of the present invention, the first strap is provided with a first joint portion and a second joint portion, and the first bracket assembly further includes a lock catch assembly for fixing the first joint portion and the second joint portion.

As the utility model discloses further modified technical scheme, first installing support is equipped with first elevated portion, second elevated portion and connects first elevated portion with the first connecting portion of second elevated portion, first elevated portion with second elevated portion welded fastening is in first casing, first mounting hole is located on the first connecting portion.

As a further improved technical solution of the present invention, the first bracket assembly further includes a first mounting nut welded and fixed to the bottom of the first connecting portion and corresponding to the first mounting hole.

As a further improved technical solution of the present invention, the first bracket assembly further includes a plurality of first supporting plates located between the first mounting bracket and the first casing, the first supporting plates are equipped with weld in the arc bottom surface of the first casing, weld in the first side of the first elevated portion, weld in the second side of the second elevated portion and weld in the top surface of the first connecting portion.

As the utility model discloses further modified technical scheme, the second bracket component includes welded fastening in arc mounting panel and welded fastening on the third casing are in second installing support on the arc mounting panel, the second installing support be equipped with for with the second mounting hole that automobile body support links to each other.

As a further improved technical solution of the utility model, the second installing support is equipped with first support wall, second support wall and connection first support wall with the second connecting portion of second support wall, first support wall with second support wall welded fastening is in the third casing, the second mounting hole is located on the second connecting portion.

As a further improved technical solution of the present invention, the second bracket assembly further includes a second mounting nut welded and fixed to the bottom of the second connecting portion and corresponding to the second mounting hole.

As a further improved technical scheme of the utility model, second aftertreatment subassembly detachably installs in the first casing, the encapsulation of tail gas aftertreatment includes the clamp, the clamp will first aftertreatment subassembly second aftertreatment subassembly and mixer subassembly detachably links together.

Compared with the prior art, the utility model is provided with the first bracket component which is arranged on the first shell in an adjustable position and the second bracket component which is arranged on the third shell in a non-adjustable position, and the position and the angle of the first mounting bracket can be flexibly adjusted through the first bracket component, thereby facilitating the mounting; the sensor arranged nearby can be prevented from being adversely affected by the second support component with a fixed position.

Drawings

Fig. 1 is a schematic perspective view of the exhaust aftertreatment package according to an embodiment of the present invention.

Fig. 2 is a partially exploded perspective view of fig. 1, with the first and second rack assemblies separated.

Fig. 3 is a partially exploded perspective view of fig. 1.

Fig. 4 is a partially exploded perspective view of fig. 3 at another angle.

Fig. 5 is a further exploded perspective view of fig. 4.

Fig. 6 is a schematic sectional view taken along line a-a in fig. 1.

Fig. 7 is a partially enlarged view of circled portion B in fig. 6.

Detailed Description

Referring to fig. 1 to 7, the present invention discloses an exhaust gas aftertreatment package 100, which includes an air inlet cone 5, a first aftertreatment component 1, a second aftertreatment component 2, a mixer component 4 connected to the downstream of the second aftertreatment component 2, a third aftertreatment component 3 connected to the downstream of the mixer component 4, and a clamp 6. In the illustrated embodiment of the present invention, the exhaust gas aftertreatment package 100 is of a linear type, i.e. the first aftertreatment component 1, the second aftertreatment component 2, the mixer component 4 and the third aftertreatment component 3 are arranged in axial alignment with the exhaust gas aftertreatment package 100. The clamp 6 detachably connects the first aftertreatment component 1, the second aftertreatment component 2 and the mixer component 4 together.

The first aftertreatment assembly 1 includes a first housing 11, a first aftertreatment carrier 12 enclosed in the first housing 11, and a first carrier assembly 13 adjustably mounted on the first housing 11. In the illustrated embodiment of the present invention, the first aftertreatment component 1 is a Diesel Oxidation Catalyst (DOC).

Referring to fig. 1 and 2, the first bracket assembly 13 includes a first strap 131 adjustably mounted on the first housing 11, and a first mounting bracket 132 welded to the first strap 131. The first strap 131 can be adjusted in position to be attached to the first housing 11 in the axial and circumferential directions. The first mounting bracket 132 is provided with a first mounting hole 1320 for coupling with the body bracket. The first strap 131 is provided with a first joint part 1311 and a second joint part 1312, and the first bracket assembly 13 further includes a locking assembly 1313 fixing the first joint part 1311 and the second joint part 1312. In the illustrated embodiment of the present invention, the latch assembly 1313 is a bolt and nut. The first mounting bracket 132 is substantially in an inverted U shape, and includes a first elevated portion 1321, a second elevated portion 1322, and a first connecting portion 1323 connecting the first elevated portion 1321 and the second elevated portion 1322. The first elevated portion 1321 and the second elevated portion 1322 are welded and fixed to the first housing 11, and the first mounting hole 1320 is provided in the first connecting portion 1323. The first bracket assembly 13 further includes a first mounting nut 1324 welded to the bottom of the first connecting portion 1323 and corresponding to the first mounting hole 1320. The first bracket assembly 13 further includes a plurality of first supporting plates 133 located between the first mounting bracket 132 and the first housing 11, and the first supporting plates 133 are provided with an arc-shaped bottom surface 1331 welded to the first housing 11, a first side surface 1332 welded to the first elevated portion 1321, a second side surface 1333 welded to the second elevated portion 1322, and a top surface 1334 welded to the first connecting portion 1323.

The first housing 11 is provided with a receiving portion 111 extending beyond the first aftertreatment carrier 12 in the axial direction of the exhaust aftertreatment package 100. The receiving portion 111 is provided with a plurality of positioning convex hulls 1111 protruding inwards. The shape of location convex hull 1111 can be circular or rectangular shape etc, the utility model discloses to this not with the restriction.

The second aftertreatment assembly 2 includes a second housing 21 and a second aftertreatment carrier 22 encapsulated in the second housing 21. The second aftertreatment carrier 22 is located downstream of the first aftertreatment carrier 12 in the axial direction of the exhaust aftertreatment package 100. In the illustrated embodiment of the present invention, the second aftertreatment component 2 is a diesel particulate trap (DPF). The second aftertreatment module 2 is detachably accommodated in the accommodating portion 111. The positioning lug 1111 abuts against the second housing 21 to radially position the second aftertreatment component 2. The second aftertreatment assembly 2 comprises a connection ring 23 fixedly connected with the second casing 21 and a handle 24 fixed on the connection ring 23, and the connection ring 23 is provided with an opening 231 for passing the air flow. The second aftertreatment assembly 2 further comprises a buffer 25 between the connection ring 23 and the second aftertreatment carrier 22.

The third aftertreatment assembly 3 includes a third housing 31, a third aftertreatment carrier 32 enclosed in the third housing 31, and a second support assembly 33 non-adjustably mounted on the third housing 31. In the illustrated embodiment of the present invention, the third aftertreatment component 3 is a Selective Catalytic Reduction (SCR). The first bracket assembly 13 and the second bracket assembly 33 are used to mount the exhaust aftertreatment package 100 to a vehicle body bracket (not shown).

The second bracket assembly 33 includes an arc-shaped mounting plate 331 welded and fixed to the third housing 31, and a second mounting bracket 332 welded and fixed to the arc-shaped mounting plate 331. When the second bracket assembly 33 is installed, its position is fixed relative to the third housing 31. The second mounting bracket 332 is provided with a second mounting hole 333 for coupling with the vehicle body bracket. The second mounting bracket 332 is provided with a first support wall 3321, a second support wall 3322, and a second connection part 3323 connecting the first support wall 3321 and the second support wall 3322, the first support wall 3321 and the second support wall 3322 are welded and fixed to the third housing 31, and the second mounting hole 333 is formed in the second connection part 3323. The second bracket assembly 33 further includes a second mounting nut 3324 welded to the bottom of the second connecting portion 3323 and corresponding to the second mounting hole 333.

The mixer assembly 4 is provided with an outer housing 41, a mixing pipe (not shown) in the outer housing 41, and a urea nozzle 43 mounted on the outer housing 41. The urea nozzle 43 is configured to spray atomized urea droplets into the outer housing 41. In particular, the urea nozzle 43 is used to inject atomized urea droplets into the mixing pipe.

Specifically, the first housing 11 is provided with a first flange portion 112, the second housing 21 is provided with a raised portion 212, the outer housing 41 is provided with a second flange portion 412, the raised portion 212 is provided with a first beveled portion 2121 adjacent to the first flange portion 112 and a second beveled portion 2122 adjacent to the second flange portion 412, and the clamp 6 detachably connects the first flange portion 112 and the second flange portion 412 together.

The exhaust aftertreatment package 100 further includes a first sealing gasket 71 sandwiched between the first cuff 112 and the first beveled portion 2121 and a second sealing gasket 72 sandwiched between the second cuff 412 and the second beveled portion 2122.

Compared with the prior art, the utility model discloses set up and install adjustable position first bracket component 13 on the first casing 11 and install unadjustable position second bracket component 33 on the third casing 31 can adjust the position and the angle of first installing support 132 in a flexible way through first bracket component 13 to be convenient for install, second bracket component 33 through fixed position can avoid causing adverse effect to the sensor that its near sets up. Additionally, the utility model discloses a set up clamp 6 will 2 detachably of second aftertreatment subassembly are installed in the first aftertreatment subassembly 1 to only need a clamp 6 just to realize the tip dismouting of second aftertreatment subassembly 2 has reduced the cost.

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

1. An exhaust aftertreatment package comprising a first aftertreatment component, a second aftertreatment component, a mixer component connected downstream of the second aftertreatment component, and a third aftertreatment component connected downstream of the mixer component, wherein the first aftertreatment component, the second aftertreatment component, the mixer component, and the third aftertreatment component are arranged in axial alignment along the exhaust aftertreatment package, the first aftertreatment assembly includes a first housing and a first aftertreatment carrier encapsulated in the first housing, the second aftertreatment assembly includes a second housing and a second aftertreatment carrier encapsulated in the second housing, the second aftertreatment carrier is located downstream of the first aftertreatment carrier in an axial direction of the exhaust aftertreatment package, the third aftertreatment assembly comprises a third housing and a third aftertreatment carrier encapsulated in the third housing; the exhaust aftertreatment package comprises a first shell, a second shell, a first bracket assembly and a second bracket assembly, wherein the first shell is used for containing exhaust aftertreatment, the second shell is used for containing exhaust, the first shell is used for containing exhaust, the second shell is used for containing exhaust, and the exhaust aftertreatment package is arranged on a vehicle body support.

2. The exhaust aftertreatment package of claim 1, wherein: the first support assembly comprises a first binding belt mounted on the first shell and a first mounting support welded and fixed on the first binding belt, and the first mounting support is provided with a first mounting hole used for being connected with the vehicle body support.

3. The exhaust aftertreatment package of claim 2, wherein: the first binding band is provided with a first joint part and a second joint part, and the first bracket component further comprises a locking component for fixing the first joint part and the second joint part.

4. The exhaust aftertreatment package of claim 2, wherein: the first mounting bracket is provided with a first elevated portion, a second elevated portion and a first connecting portion connected with the first elevated portion and the second elevated portion, the first elevated portion and the second elevated portion are welded and fixed on the first shell, and the first mounting hole is formed in the first connecting portion.

5. The exhaust aftertreatment package of claim 4, wherein: the first bracket component further comprises a first mounting nut which is welded and fixed at the bottom of the first connecting part and corresponds to the first mounting hole.

6. The exhaust aftertreatment package of claim 4, wherein: the first support assembly further comprises a plurality of first support plates positioned between the first mounting support and the first shell, and the first support plates are welded to the arc-shaped bottom surface of the first shell, the first side surfaces of the first elevated portions, the second side surfaces of the second elevated portions and the top surfaces of the first connecting portions.

7. The exhaust aftertreatment package of claim 1, wherein: the second bracket component includes welded fastening in arc mounting panel and welded fastening on the third casing are in second installing support on the arc mounting panel, second installing support be equipped with for with the second mounting hole that the automobile body support links to each other.

8. The exhaust aftertreatment package of claim 7, wherein: the second mounting bracket is provided with a first supporting wall, a second supporting wall and a second connecting part for connecting the first supporting wall and the second supporting wall, the first supporting wall and the second supporting wall are welded and fixed on the third shell, and the second mounting hole is formed in the second connecting part.

9. The exhaust aftertreatment package of claim 8, wherein: the second bracket component also comprises a second mounting nut which is welded and fixed at the bottom of the second connecting part and corresponds to the second mounting hole.

10. The exhaust aftertreatment package of any one of claims 1 to 9, wherein: second aftertreatment subassembly detachably installs in the first casing, the tail gas aftertreatment encapsulation includes the clamp, the clamp will first aftertreatment subassembly the second aftertreatment subassembly and mixer subassembly detachably links together.