CN114087061A - Tail gas aftertreatment device - Google Patents
Tail gas aftertreatment device Download PDFInfo
- Publication number
- CN114087061A CN114087061A CN202111406350.4A CN202111406350A CN114087061A CN 114087061 A CN114087061 A CN 114087061A CN 202111406350 A CN202111406350 A CN 202111406350A CN 114087061 A CN114087061 A CN 114087061A
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- China
- Prior art keywords
- flange
- aftertreatment
- mounting
- flange portion
- axial direction
- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
- F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/0211—Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
An exhaust gas aftertreatment device comprises a first aftertreatment component, a second aftertreatment component and an air outlet component. The first aftertreatment component includes a first housing and a first aftertreatment carrier. The first housing includes a receiving cavity. The second aftertreatment component includes a second housing and a second aftertreatment carrier. The second aftertreatment component can be detachably mounted to the housing cavity in an axial direction. The air outlet assembly comprises a third shell and an air outlet cavity. The first aftertreatment component includes a first flange portion secured to the first housing; the second aftertreatment component includes a second flange portion secured to the second housing; the air outlet assembly comprises a third flange part fixed on the third shell. The exhaust aftertreatment device further includes a fastener that secures the first, second, and third flange portions together.
Description
Technical Field
The invention relates to a tail gas aftertreatment device, and belongs to the technical field of engine tail gas aftertreatment.
Background
Existing exhaust aftertreatment devices typically include several aftertreatment components that are interconnected together. Some of these aftertreatment components, such as diesel particulate traps, require cleaning and maintenance after a certain amount of use.
Therefore, how to achieve the quick disassembly of the post-processing assembly is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide the tail gas aftertreatment device which is good in structural stability and convenient to disassemble.
In order to realize the purpose, the invention adopts the following technical scheme: an exhaust gas aftertreatment device comprises a first aftertreatment component, a second aftertreatment component detachably mounted on the first aftertreatment component, and an air outlet component assembled and connected with the second aftertreatment component, wherein the first aftertreatment component comprises a first shell and a first aftertreatment carrier packaged in the first shell, and the first shell comprises an accommodating cavity axially positioned on one side of the first aftertreatment carrier; the second aftertreatment component comprises a second shell and a second aftertreatment carrier encapsulated in the second shell, and the second aftertreatment component is detachably mounted in the accommodating cavity along the axial direction; the air outlet assembly comprises a third shell and an air outlet cavity; the first aftertreatment subassembly is including being fixed in first casing just along radial protrusion the first flange portion of first casing, the second aftertreatment subassembly is including being fixed in the second casing just along radial protrusion the second flange portion of second casing, the subassembly of giving vent to anger is including being fixed in the third casing just along radial protrusion the third flange portion of third casing, the second flange portion is located between first flange portion and the third flange portion, exhaust aftertreatment device still includes with first flange portion, second flange portion and the fastener that third flange portion is fixed together.
As a further improved technical solution of the present invention, the second flange portion includes a first side and a second side which are oppositely disposed, wherein the first side abuts against the first flange portion, and the second side abuts against the third flange portion.
As a further improved technical solution of the present invention, the first flange portion is provided with a first mounting hole extending along the axial direction, the second flange portion is provided with a second mounting hole extending along the axial direction, and the third flange portion is provided with a third mounting hole extending along the axial direction; the fastener comprises a bolt passing through the first mounting hole, the second mounting hole and the third mounting hole and a nut matched with the bolt.
As a further improved technical scheme of the invention, the exhaust gas aftertreatment device further comprises a first mounting flange positioned on one side of the first flange part far away from the third flange part, and the first mounting flange is provided with a fourth mounting hole;
the tail gas aftertreatment device further comprises a second mounting flange positioned on one side, away from the first flange part, of the third flange part, and the second mounting flange is provided with a fifth mounting hole;
the bolt passes through the fourth mounting hole and the fifth mounting hole.
As a further improved technical solution of the present invention, a thickness of the first mounting flange in the axial direction is greater than a thickness of any one of the first flange portion, the second flange portion, and the third flange portion in the axial direction;
the thickness of the second mounting flange in the axial direction is greater than the thickness of any one of the first, second, and third flange portions in the axial direction.
As a further improved technical scheme, the first mounting flange is annular and comprises two C-shaped half mounting flanges, and the second mounting flange is annular and comprises two C-shaped half mounting flanges;
the half mounting flange of two C types of first mounting flange is the same, the half mounting flange of two C types of second mounting flange is the same, just the half mounting flange of first mounting flange with the half mounting flange of second mounting flange is also the same.
As a further improved technical solution of the present invention, the first housing includes an air inlet cavity located on the other side of the first aftertreatment carrier along the axial direction, the exhaust aftertreatment device further includes an air inlet pipe communicated with the air inlet cavity, and an extending direction of the air inlet pipe is perpendicular to the axial direction.
As a further improved technical scheme of the invention, the air outlet assembly comprises an air outlet pipe communicated with the air outlet cavity, and the extending direction of the air outlet pipe is perpendicular to the axial direction.
As a further improved technical solution of the present invention, the exhaust gas aftertreatment device includes a first end cap welded and fixed to one end of the first housing and a second end cap welded and fixed to one end of the third housing, the first end cap and the second end cap are respectively located at two ends of the exhaust gas aftertreatment device along the axial direction, wherein the first end cap is provided with a first arc-shaped wall protruding toward the second end cap and protruding into the air intake cavity, and the second end cap is provided with a second arc-shaped wall protruding toward the first end cap and protruding into the air exhaust cavity.
As a further improved technical scheme of the invention, the first after-treatment carrier is a diesel oxidation catalyst carrier, and the second after-treatment carrier is a diesel particulate filter carrier.
Compared with the prior art, the first aftertreatment component of the invention includes a first flange portion fixed to the first casing and protruding out of the first casing in the radial direction, the second aftertreatment component includes a second flange portion fixed to the second casing and protruding out of the second casing in the radial direction, the exhaust gas component includes a third flange portion fixed to the third casing and protruding out of the third casing in the radial direction, and the exhaust aftertreatment device further includes a fastener for fixing the first flange portion, the second flange portion, and the third flange portion together. The first flange part, the second flange part and the third flange part are arranged to stably assemble the first aftertreatment component, the second aftertreatment component and the air outlet component together; in addition, the first aftertreatment component, the second aftertreatment component and the air outlet component can be quickly disassembled by disassembling the fastening piece.
Drawings
Fig. 1 is a schematic perspective view of an exhaust gas aftertreatment device according to an embodiment of the invention.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a schematic sectional view taken along line a-a in fig. 2.
Fig. 4 is an exploded perspective view of fig. 1.
Fig. 5 is a partially enlarged view of circled portion B in fig. 3.
Detailed Description
The following detailed description of the embodiments of the invention will be described in conjunction with the accompanying drawings, in which, 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 statements made 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 present invention. It should be understood that the use of terms such as "first," "second," and the like, in the description and in the claims of the present invention do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another.
Referring to fig. 1 to 5, the present invention discloses an exhaust gas aftertreatment device 100, which includes a first aftertreatment component 10, a second aftertreatment component 20 detachably mounted on the first aftertreatment component 10, and an exhaust component 30 assembled and connected to the second aftertreatment component 20.
The first aftertreatment assembly 10 includes a first housing 11 and a first aftertreatment carrier 12 encapsulated in the first housing 11. In one embodiment of the present invention, the first aftertreatment support 12 is a diesel oxidation catalyst support.
The first casing 11 includes a housing cavity 111 located on one side (e.g., right side) of the first aftertreatment carrier 12 in the axial direction and an air intake cavity 112 located on the other side (e.g., left side) of the first aftertreatment carrier 12 in the axial direction. The exhaust gas aftertreatment device 100 further includes an intake pipe 4 communicated with the intake cavity 112, and an extending direction of the intake pipe 4 is perpendicular to the axial direction.
The second aftertreatment assembly 20 includes a second housing 21 and a second aftertreatment carrier 22 encapsulated in the second housing 21. The second aftertreatment component 20 is detachably mounted to the receiving cavity 111 along the axial direction. In one embodiment of the present invention, the second aftertreatment support 22 is a diesel particulate trap support.
The air outlet assembly 30 includes a third housing 31, an air outlet cavity 32, and an air outlet pipe 33 communicated with the air outlet cavity 32. The extension direction of the outlet pipe 33 is perpendicular to the axial direction.
The exhaust gas aftertreatment device 100 includes a first end cap 51 welded and fixed to one end (e.g., the left end) of the first housing 11 and a second end cap 52 welded and fixed to one end of the third housing 31, where the first end cap 51 and the second end cap 52 are respectively located at two ends of the exhaust gas aftertreatment device 100 along the axial direction, the first end cap 51 is provided with a first arc-shaped wall 511 protruding toward the second end cap 52 and protruding into the air intake cavity 112, and the second end cap 52 is provided with a second arc-shaped wall 521 protruding toward the first end cap 51 and protruding into the air exhaust cavity 32. The first arc-shaped wall 511 and the second arc-shaped wall 521 can guide the flow direction of the exhaust gas.
Further, the first aftertreatment assembly 10 includes a first flange portion 14 fixed to the first casing 11 and projecting radially from the first casing 11; the second aftertreatment assembly 20 includes a second flange portion 24 fixed to the second casing 21 and projecting radially from the second casing 21; the air outlet member 30 includes a third flange portion 34 fixed to the third housing 31 and protruding radially from the third housing 31. The second flange portion 24 is located between the first flange portion 14 and the third flange portion 34. The exhaust aftertreatment device 100 further includes a plurality of fasteners 6 that secure the first, second, and third flange portions 14, 24, 34 together.
In the illustrated embodiment of the invention, the second flange portion 24 includes a first side (e.g., left side) and a second side (e.g., right side) that are oppositely disposed, wherein the first side abuts the first flange portion 14 and the second side abuts the third flange portion 34. In other words, the second flange portion 24 is directly clamped between the first flange portion 14 and the third flange portion 34. At this time, the second flange portion 24 can also function as a gasket. Of course, in other embodiments, in order to improve the sealing effect, the exhaust gas aftertreatment device 100 may further include a gasket clamped between the first flange portion 14 and the second flange portion 24, and a gasket clamped between the second flange portion 24 and the third flange portion 34.
The first flange portion 14 is provided with a first mounting hole 141 extending in the axial direction, the second flange portion 24 is provided with a second mounting hole 241 extending in the axial direction, and the third flange portion 34 is provided with a third mounting hole 341 extending in the axial direction. The fastening member 6 includes a bolt 61 passing through the first, second, and third mounting holes 141, 241, and 341, and a nut 62 engaged with the bolt 61.
In the illustrated embodiment of the present invention, the exhaust gas aftertreatment device 100 further comprises a first mounting flange 71 located on a side of the first flange portion 14 remote from the third flange portion 34, and a second mounting flange 72 located on a side of the third flange portion 34 remote from the first flange portion 14. In other words, the first mounting flange 71 and the second mounting flange 72 are located outside the first flange portion 14 and the third flange portion 34, respectively. The first mounting flange 71 is provided with a fourth mounting hole 711, and the second mounting flange 72 is provided with a fifth mounting hole 721. The bolt 61 passes through the fourth mounting hole 711 and the fifth mounting hole 721.
In the illustrated embodiment of the present invention, the first flange portion 14, the second flange portion 24, and the third flange portion 34 are thin. The thickness of the first mounting flange 71 in the axial direction is larger than the thickness of any one of the first, second, and third flange portions 14, 24, and 34 in the axial direction. Similarly, the thickness of the second mounting flange 72 in the axial direction is greater than the thickness of any of the first, second, and third flange portions 14, 24, 34 in the axial direction. With this arrangement, the first mounting flange 71 and the second mounting flange 72 can provide sufficient support for the bolts 61, thereby improving structural reliability and reducing mounting deformation of the first flange portion 14, the second flange portion 24, and the third flange portion 34.
In the illustrated embodiment of the invention, the first mounting flange 71 is annular and includes two C-shaped half mounting flanges 712; the second mounting flange 72 is annular and includes two C-shaped half mounting flanges 722. Preferably, the two C-shaped half mounting flanges 712 of the first mounting flange 71 are identical, the two C-shaped half mounting flanges 722 of the second mounting flange 72 are identical, and the half mounting flanges 712 of the first mounting flange 71 and the half mounting flanges 722 of the second mounting flange 72 are also identical. The design can realize the sharing of parts as much as possible and reduce the cost.
Compared with the prior art, the first aftertreatment assembly 10 of the present invention includes the first flange 14 fixed to the first casing 11 and protruding radially from the first casing 11, the second aftertreatment assembly 20 includes the second flange 24 fixed to the second casing 21 and protruding radially from the second casing 21, and the air outlet assembly 30 includes the third flange 34 fixed to the third casing 31 and protruding radially from the third casing 31. The first aftertreatment module 10, the second aftertreatment module 20 and the gas outlet module 30 can be firmly assembled together by providing the first flange part 14, the second flange part 24 and the third flange part 34; in addition, quick disassembly of the first aftertreatment assembly 10, the second aftertreatment assembly 20, and the air egress assembly 30 can be achieved by disassembling the fasteners 6.
The above embodiments are only for illustrating the invention and not for limiting the technical solutions described in the invention, and the understanding of the present specification should be based on the technical personnel in the field, and although the present specification has described the invention in detail with reference to the above embodiments, the technical personnel in the field should understand that the technical personnel in the field can still make modifications or equivalent substitutions to the present invention, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.
Claims (10)
1. An exhaust gas aftertreatment device comprises a first aftertreatment component, a second aftertreatment component detachably mounted on the first aftertreatment component, and an air outlet component assembled and connected with the second aftertreatment component, wherein the first aftertreatment component comprises a first shell and a first aftertreatment carrier packaged in the first shell, and the first shell comprises an accommodating cavity axially positioned on one side of the first aftertreatment carrier; the second aftertreatment component comprises a second shell and a second aftertreatment carrier encapsulated in the second shell, and the second aftertreatment component is detachably mounted in the accommodating cavity along the axial direction; the air outlet assembly comprises a third shell and an air outlet cavity; the method is characterized in that: the first aftertreatment component comprises a first flange portion fixed to the first housing and protruding out of the first housing in the radial direction, the second aftertreatment component comprises a second flange portion fixed to the second housing and protruding out of the second housing in the radial direction, the exhaust gas component comprises a third flange portion fixed to the third housing and protruding out of the third housing in the radial direction, the second flange portion is located between the first flange portion and the third flange portion, and the exhaust aftertreatment device further comprises a fastener for fixing the first flange portion, the second flange portion and the third flange portion together.
2. The exhaust gas aftertreatment device of claim 1, wherein: the second flange portion includes a first side and a second side that are disposed opposite to each other, wherein the first side abuts against the first flange portion, and the second side abuts against the third flange portion.
3. The exhaust gas aftertreatment device of claim 1, wherein: the first flange part is provided with a first mounting hole extending along the axial direction, the second flange part is provided with a second mounting hole extending along the axial direction, and the third flange part is provided with a third mounting hole extending along the axial direction; the fastener comprises a bolt penetrating through the first mounting hole, the second mounting hole and the third mounting hole and a nut matched with the bolt.
4. The exhaust gas aftertreatment device of claim 3, wherein: the tail gas aftertreatment device further comprises a first mounting flange positioned on one side, away from the third flange part, of the first flange part, and the first mounting flange is provided with a fourth mounting hole;
the tail gas after-treatment device further comprises a second mounting flange positioned on one side, away from the first flange part, of the third flange part, and the second mounting flange is provided with a fifth mounting hole;
the bolt passes through the fourth mounting hole and the fifth mounting hole.
5. The exhaust gas aftertreatment device of claim 4, wherein: a thickness of the first mounting flange in the axial direction is greater than a thickness of any one of the first, second, and third flange portions in the axial direction;
the thickness of the second mounting flange in the axial direction is greater than the thickness of any one of the first, second, and third flange portions in the axial direction.
6. The exhaust gas aftertreatment device of claim 5, wherein: the first mounting flange is annular and comprises two C-shaped half mounting flanges, and the second mounting flange is annular and comprises two C-shaped half mounting flanges;
the half mounting flange of two C types of first mounting flange is the same, the half mounting flange of two C types of second mounting flange is the same, just the half mounting flange of first mounting flange with the half mounting flange of second mounting flange is also the same.
7. The exhaust gas aftertreatment device of claim 1, wherein: the air outlet assembly comprises an air outlet pipe communicated with the air outlet cavity, and the extending direction of the air outlet pipe is perpendicular to the axial direction.
8. The exhaust gas aftertreatment device of claim 7, wherein: the first shell comprises an air inlet cavity which is located on the other side of the first aftertreatment carrier along the axial direction, the tail gas aftertreatment device further comprises an air inlet pipe communicated with the air inlet cavity, and the extending direction of the air inlet pipe is perpendicular to the axial direction.
9. The exhaust gas aftertreatment device of claim 8, wherein: the tail gas aftertreatment device includes welded fastening in the first end cover and the welded fastening of the one end of first casing are in the second end cover of the one end of third casing, first end cover and the second end cover is followed the axial is located respectively tail gas aftertreatment device's both ends, wherein first end cover is equipped with to second end cover protrusion and protruding the entering first arc wall in the air intake cavity, the second end cover is equipped with to first end cover protrusion and protruding the entering second arc wall in the air outlet cavity.
10. The exhaust gas aftertreatment device of claim 1, wherein: the first after-treatment carrier is a diesel oxidation catalyst carrier, and the second after-treatment carrier is a diesel particulate filter carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111406350.4A CN114087061A (en) | 2021-11-24 | 2021-11-24 | Tail gas aftertreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111406350.4A CN114087061A (en) | 2021-11-24 | 2021-11-24 | Tail gas aftertreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114087061A true CN114087061A (en) | 2022-02-25 |
Family
ID=80304148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111406350.4A Pending CN114087061A (en) | 2021-11-24 | 2021-11-24 | Tail gas aftertreatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114087061A (en) |
-
2021
- 2021-11-24 CN CN202111406350.4A patent/CN114087061A/en active Pending
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