CN211924300U

CN211924300U - Tail gas aftertreatment encapsulation

Info

Publication number: CN211924300U
Application number: CN202020600454.3U
Authority: CN
Inventors: 于百战; 李伟
Original assignee: Tenneco Suzhou Emission System Co Ltd
Current assignee: Tenneco Suzhou Emission System Co Ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-11-13
Anticipated expiration: 2030-04-21

Abstract

An exhaust aftertreatment package comprises an outer shell, a first aftertreatment component and a second aftertreatment component, wherein the first aftertreatment component and the second aftertreatment component are positioned in the outer shell; the tail gas aftertreatment package comprises a cylinder body part sleeved on the periphery of the second shell and a sealing part clamped between the second shell and the cylinder body part; the barrel part is provided with a protruding part extending along the axial direction, the tail gas aftertreatment package further comprises an end plate fixed with the second shell, a force application part penetrating through the protruding part and abutting against a cross rod on the protruding part and installed on the cross rod, and the force application part can rotate to push the end plate and further enable the sealing piece to be tightly sealed between the second shell and the barrel part.

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

With the escalation of emissions regulations, some exhaust aftertreatment packages include diesel particulate traps. The diesel particulate trap is used for collecting particulate matters in the diesel exhaust, and when the particulate matters are collected to a certain degree, the diesel particulate trap needs to be cleaned, otherwise, the back pressure of the system can be seriously increased, and the normal operation of the system is not facilitated.

In the prior art, in order to facilitate the disassembly of the diesel particulate filter, some disassembly structures are designed, however, how to seal the installation position of the diesel particulate filter when the diesel particulate filter is installed in the exhaust aftertreatment package is a technical problem to be solved by technical personnel in the technical field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed tail gas aftertreatment encapsulation of realization second aftertreatment subassembly mounted position department that can be better.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an exhaust aftertreatment package comprising an outer housing, a first aftertreatment component located within the outer housing and a second aftertreatment component located downstream of the first aftertreatment component, the second aftertreatment component comprising a second housing and a diesel particulate trap packaged within the second housing, the outer housing having an opening for removal of the second aftertreatment component; the tail gas aftertreatment package comprises a cylinder body part sleeved on the periphery of the second shell and a sealing part clamped between the second shell and the cylinder body part; the barrel part is provided with a protruding part extending along the axial direction, the tail gas aftertreatment package further comprises an end plate fixed with the second shell, a force application part penetrating through the protruding part and abutting against a cross rod on the protruding part and installed on the cross rod, and the force application part can rotate to push the end plate and further enable the sealing piece to be tightly sealed between the second shell and the barrel part.

As a further improved technical scheme of the utility model, the tail gas aftertreatment encapsulation including be used for with opening matched with end cover subassembly.

As a technical scheme of the utility model further modified, the tail gas aftertreatment encapsulation is equipped with and is located the first flange of opening part, the end cover subassembly includes the end cover and forms second flange on the end cover, the tail gas aftertreatment encapsulation still includes detachably and connects first flange with clamp and the centre gripping of second flange are in first flange with first seal gasket between the second flange.

As a further improved technical solution of the present invention, the barrel portion is provided with a first step portion, the second housing is provided with a second step portion, the sealing member is a second sealing gasket sleeved on the second housing, the second sealing gasket is held along the axial direction between the first step portion and the second step portion.

As a further improved technical solution of the present invention, the force application member is a bolt, and the cross bar is provided with an internal thread matched with the bolt.

As a further improved technical scheme of the present invention, the end plate is welded and fixed with the second shell, and the end plate is provided with a plurality of pressing surfaces; the bolt is a plurality of, the bolt can promote when rotatory the face of bearing.

As a further improved technical solution of the present invention, the protruding portions include two first protruding portions and two second protruding portions, the first protruding portions are respectively provided with first through holes, and the second protruding portions are respectively provided with second through holes; the horizontal pole is including wearing to establish the first horizontal pole in two first perforation and wearing to establish the second horizontal pole in two second perforations, first horizontal pole with all install two bolts on the second horizontal pole.

As a further improved technical solution of the present invention, the first cross bar and the second cross bar are detachably mounted on the first protruding portion and the second protruding portion.

As a modified technical scheme of the utility model, first horizontal pole is equipped with and is used for the card to hold the first recess of first bellying, the second horizontal pole is equipped with and is used for the card to hold the second recess of second bellying.

As a further improved technical solution of the present invention, the first aftertreatment component includes a first casing and a diesel oxidation catalyst encapsulated in the first casing, and both the first casing and the second casing are accommodated in the barrel portion; the tail gas aftertreatment package is including being located the first baffle and the second baffle of just interval arrangement in the shell body, barrel portion runs through first baffle with the second baffle, just barrel portion with first baffle and second baffle welded fastening.

Compared with the prior art, the utility model discloses set up the end plate fixed mutually with the second casing, promote through application of force part the end plate, and then make the sealing member can closely seal the second casing with between the barrel portion.

Drawings

Fig. 1 is a front view of the exhaust aftertreatment package of the present invention in one embodiment.

Fig. 2 is a schematic sectional view taken along line J-J in fig. 1.

Fig. 3 is a partially enlarged view of circled portion M of fig. 2.

Fig. 4 is a partially exploded perspective view of fig. 1.

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

Fig. 6 is a further exploded perspective view of fig. 5.

Detailed Description

The present invention will be described in detail with reference to the drawings, wherein if there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the accompanying drawings, like 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 to 6, the present invention discloses an exhaust gas post-treatment package 100, which includes an outer casing 1, a first baffle 21 and a second baffle 22 disposed in the outer casing 1 at an interval, an inlet pipe 31 for the exhaust gas to enter, an outlet pipe 32 for the exhaust gas to flow out, a first post-treatment carrier component 51 and a second post-treatment carrier component 52.

In one embodiment of the present invention, the first aftertreatment support assembly 51 includes a first housing 511 and a Diesel Oxidation Catalyst (DOC)512 enclosed within the first housing 511; the second aftertreatment carrier assembly 52 includes a second housing 521 and a diesel particulate trap (DPF)522 enclosed within the second housing 521; the second aftertreatment carrier assembly 52 is located downstream of the first aftertreatment carrier assembly 51.

Referring to fig. 2, the exhaust gas aftertreatment package 100 includes a barrel 23 penetrating through the first baffle 21 and the second baffle 22, and a sealing member 523 clamped between the second casing 521 and the barrel 23. The cylindrical portion 23 is welded and fixed to the first baffle 21 and the second baffle 22. The first case 511 and the second case 521 are both housed in the barrel portion 23. The barrel portion 23 is provided with a projection extending in the axial direction. The exhaust aftertreatment package 100 further includes an end plate 525 fixed to the second housing 521, a cross bar 24 passing through the protruding portion and abutting against the protruding portion, and a force application member mounted on the cross bar 24. The force application member can rotate to push the end plate 525 so that the sealing member 523 can be tightly sealed between the second housing 521 and the barrel portion 23. In an embodiment of the present invention, the sealing member 523 is a second sealing gasket sleeved on the second housing 521. The body 23 is provided with a first step 231, the second housing 521 is provided with a second step 524, and the second sealing gasket is axially clamped between the first step 231 and the second step 524.

Specifically, the end plate 525 is welded and fixed to the second housing 521, and the end plate 525 is provided with a plurality of abutting surfaces 5251. In the illustrated embodiment of the present invention, the number of the pressing surfaces 5251 is four, and the pressing surfaces are uniformly distributed along the circumferential direction. In the illustrated embodiment of the present invention, the force application member is a bolt 1131, and the cross bar 24 is provided with an internal thread 240 matching with the bolt 1131.

The protruding parts comprise two first protruding parts 232 and two second protruding parts, the first protruding parts 232 are respectively provided with first through holes 2321, and the second protruding parts are respectively provided with second through holes; the cross bar 24 includes a first cross bar 241 inserted into the two first through holes 2321 and a second cross bar 242 inserted into the two second through holes, and the first cross bar 241 and the second cross bar 242 are both mounted with two bolts 1131. The bolt 1131 can push the pressing surface 5251 when rotating.

The first rail 241 and the second rail 242 are detachably mounted on the first protruding portion 232 and the second protruding portion. The first cross bar 241 has a first groove 2411 for holding the first protrusion 232, and the second cross bar 242 has a second groove 2421 for holding the second protrusion.

When assembling, firstly, one end of the first cross bar 241 is inserted through one of the first through holes 2321; then, the other end of the first cross bar 241 is adjusted to a position aligned with the other first through hole 2321; the other end of the first cross bar 241 is then inserted into the corresponding first perforation 2321. At this time, the first groove 2411 of the first cross bar 241 catches the first protrusion 232, so as to prevent the first cross bar 241 from moving along the length direction thereof. The second rail 242 is installed in the same manner as the first rail 241. When the first rail 241 and the second rail 242 are mounted, the positions thereof are fixed with respect to the barrel 23; therefore, when the bolt 1131 is rotated, the protruding length of the bolt 1131 can be increased, so as to push the pressing surface 5251, and further drive the second aftertreatment carrier assembly 52 to move toward the first aftertreatment carrier assembly 51, thereby axially clamping the sealing member 523.

The outer housing 1 is provided with an opening 111 for removal of the second aftertreatment carrier assembly 52. The exhaust aftertreatment package 100 includes an end cap assembly 112 configured to mate with the opening 111 and a clip 115 configured to remove the end cap assembly 112. Specifically, the exhaust aftertreatment package 100 is provided with a first flange 1111 at the opening 111. The end cap assembly 112 includes an end cap 1121 and a second flange 1122 formed on the end cap 1121. The exhaust aftertreatment package 100 further includes a first sealing gasket 114 sandwiched between the first flange 1111 and the second flange 1122 to achieve a better seal.

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 an outer housing, a first aftertreatment component located within the outer housing and a second aftertreatment component located downstream of the first aftertreatment component, the second aftertreatment component comprising a second housing and a diesel particulate trap packaged within the second housing, the outer housing having an opening for removal of the second aftertreatment component; the method is characterized in that: the tail gas aftertreatment package comprises a cylinder body part sleeved on the periphery of the second shell and a sealing part clamped between the second shell and the cylinder body part; the barrel part is provided with a protruding part extending along the axial direction, the tail gas aftertreatment package further comprises an end plate fixed with the second shell, a force application part penetrating through the protruding part and abutting against a cross rod on the protruding part and installed on the cross rod, and the force application part can rotate to push the end plate and further enable the sealing piece to be tightly sealed between the second shell and the barrel part.

2. The exhaust aftertreatment package of claim 1, wherein: the exhaust aftertreatment package includes an end cap assembly for mating with the opening.

3. The exhaust aftertreatment package of claim 2, wherein: the tail gas aftertreatment encapsulation is provided with a first flange located at the opening, the end cover assembly comprises an end cover and a second flange formed on the end cover, the tail gas aftertreatment encapsulation further comprises a hoop detachably connected with the first flange and the second flange, and a first sealing gasket clamped between the first flange and the second flange.

4. The exhaust aftertreatment package of claim 1, wherein: the barrel part is provided with a first step part, the second shell is provided with a second step part, the sealing element is a second sealing gasket sleeved on the second shell, and the second sealing gasket is axially clamped between the first step part and the second step part.

5. The exhaust aftertreatment package of claim 1, wherein: the force application component is a bolt, and the cross rod is provided with an internal thread matched with the bolt.

6. The exhaust aftertreatment package of claim 5, wherein: the end plate is welded and fixed with the second shell, and is provided with a plurality of pressing surfaces; the bolt is a plurality of, the bolt can promote when rotatory the face of bearing.

7. The exhaust aftertreatment package of claim 6, wherein: the lug bosses comprise two first lug bosses and two second lug bosses, the first lug bosses are respectively provided with a first through hole, and the second lug bosses are respectively provided with a second through hole; the horizontal pole is including wearing to establish the first horizontal pole in two first perforation and wearing to establish the second horizontal pole in two second perforations, first horizontal pole with all install two bolts on the second horizontal pole.

8. The exhaust aftertreatment package of claim 7, wherein: the first cross bar and the second cross bar are detachably mounted on the first boss and the second boss.

9. The exhaust aftertreatment package of claim 8, wherein: the first cross rod is provided with a first groove used for clamping the first protruding portion, and the second cross rod is provided with a second groove used for clamping the second protruding portion.

10. The exhaust aftertreatment package of claim 1, wherein: the first aftertreatment component comprises a first shell and a diesel oxidation catalyst encapsulated in the first shell, and the first shell and the second shell are both contained in the barrel part; the tail gas aftertreatment package is including being located the first baffle and the second baffle of just interval arrangement in the shell body, barrel portion runs through first baffle with the second baffle, just barrel portion with first baffle and second baffle welded fastening.