CN212130586U - Mixer and aftertreatment system comprising same - Google Patents

Mixer and aftertreatment system comprising same Download PDF

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Publication number
CN212130586U
CN212130586U CN202020237703.7U CN202020237703U CN212130586U CN 212130586 U CN212130586 U CN 212130586U CN 202020237703 U CN202020237703 U CN 202020237703U CN 212130586 U CN212130586 U CN 212130586U
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CN
China
Prior art keywords
mixer
cavity
wall surface
end cap
rear end
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CN202020237703.7U
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Chinese (zh)
Inventor
张强
谢雷
王杰
黄晓巍
王世杰
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Faurecia Emissions Control Technologies Development Shanghai Co Ltd
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Faurecia Emissions Control Technologies Development Shanghai Co Ltd
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Abstract

The utility model provides a blender and post-processing system including it, the blender includes urceolus, inner tube subassembly, cyclone tube and wire net, and the inner tube subassembly is the equal open-ended tubular structure of upper end and lower tip, and the inner tube unit mount is in the urceolus for form first cavity between section of thick bamboo subassembly and the urceolus internal face, the inside of inner tube subassembly forms the second cavity, and the wire net is fixed in the bottom of cyclone tube, and the bottom of wire net is installed perpendicularly in the second cavity, and the second cavity communicates with first cavity each other. The utility model discloses an to inner structure optimization, adopt novel whirl pipe and wire mesh superimposed structure, mix NH3 and waste gas to promote the anti crystallization ability of blender, effectively solve the precipitation problem, deal with the challenge of six products in the country. The mixer is simple in structure, and after the mixer is processed through the inline structure, the problem of crystallization and precipitation can be effectively solved with low cost and compact space, and the national emission standard is met.

Description

Mixer and aftertreatment system comprising same
Technical Field
The utility model relates to an automobile exhaust handles the field, in particular to blender reaches aftertreatment system including it.
Background
In the prior art, the current commercial vehicle market employs metal mechanical structures to direct the mixing of the after-treatment exhaust gases with a 32.5% urea aqueous solution. Generally, a mixer adopts structures such as a pore plate, a round barrel, a special-shaped blade and the like to guide airflow to rotate, fully mix the airflow with the urea aqueous solution, and crush the urea aqueous solution at a specific structure to decompose the urea aqueous solution, so that the aim of gasifying the urea aqueous solution is fulfilled.
However, as emissions regulations escalate, lower temperatures, more compact spaces, and higher urea injection quantities present higher challenges to existing designs. Current mechanical structures cannot completely decompose higher urea aqueous solutions, thereby producing crystals, clogging mixers, increasing the backpressure of the aftertreatment device, thereby affecting the performance of the aftertreatment device.
Currently, EAR values are typically generated by calculating exhaust flow, temperature, and urea injection quantities for assessing the risk of processor anti-crystallization before and after. On the premise that the EAR value is generally low at present, the anti-crystallization capacity of the mixer is improved by methods such as internal structure optimization and design upgrading of the mixer, and the mixer is suitable for the challenge of products in China.
In view of the above, those skilled in the art have developed mixer structures in an attempt to overcome the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to solve the unable higher urea aqueous solution that decomposes completely of blender structure among the prior art in order to overcome, produce the crystallization easily to block up the defect of blender, provide a blender and include its aftertreatment ware.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
the utility model provides a mixer, its characterized in that, the mixer includes urceolus, inner tube subassembly, cyclone tube and wire net, the inner tube subassembly is the equal open-ended tubular structure of upper end and lower tip, the inner tube unit mount is in the urceolus, make the inner tube subassembly with form first cavity between the urceolus internal face, the inside of inner tube subassembly forms the second cavity, the wire net is fixed the bottom of cyclone tube, just the bottom of wire net is installed perpendicularly in the second cavity, the second cavity with first cavity communicates each other.
According to an embodiment of the present invention, the inner barrel assembly includes a front end cap and an inner barrel, the front end cap is fixed on an inner wall surface of the outer barrel and is located inside the outer barrel;
the inner cylinder is arranged on the inner wall surface of the front end cover and positioned in the outer cylinder, and the spiral flow pipe and the steel wire mesh are vertically arranged in the inner cylinder;
the first cavity is a space area among the inner wall surface of the front end cover, the outer wall surface of the inner cylinder and the inner wall surface of the outer cylinder;
the second cavity is a space area formed by enclosing the front end cover and the inner cylinder.
According to the utility model discloses an embodiment, the inner tube subassembly still includes the rear end cap, the rear end cap is fixed on the internal face of urceolus, be located in the urceolus, just the inner tube is located the front end housing with between the rear end cap, first cavity does the internal face of front end housing the outer wall of inner tube the internal face of urceolus with enclose the space region who establishes and form between the internal face of rear end cap.
According to the utility model discloses an embodiment, at least one air inlet has been seted up on the front end housing, the air inlet with the second cavity intercommunication for gaseous inflow in the second cavity.
According to the utility model discloses an embodiment, at least one gas outlet has been seted up on the rear end cap, the gas outlet with first cavity intercommunication for gas after mixing is followed first cavity flows out.
According to the utility model discloses an embodiment, the inner tube is including the inner tube wall and the backup pad that link up from top to bottom, the backup pad is installed the bottom portion of inner tube wall, the installation through-hole has been seted up in the backup pad, the bottom of wire net is fixed on the installation through-hole, the inner tube wall is fixed on the internal face of front end housing.
According to the utility model discloses an embodiment, the inner tube wall is U type inner tube wall, two free ends that lie in the lateral part on the U type inner tube wall are fixed on the internal face of front end housing.
According to the utility model discloses an embodiment, the blender still includes the guide plate, the guide plate is installed the lower tip of front end housing with between the lower tip of rear end housing, be located the below of inner tube is used for the guide air current in the first cavity.
According to the utility model discloses an embodiment, the guide plate is U template, semi-circular, board-type or W template.
According to the utility model discloses an embodiment, the air inlet is seted up the symmetry air inlet of front end housing upper portion central point position, perhaps sets up the eccentric air inlet of front end housing upper portion side, the shape of air inlet is circular, rectangle or triangle-shaped.
According to the utility model discloses an embodiment, the rear end cap is circular plate or semicircle board, the marginal shape of rear end cap with urceolus internal face phase-match.
According to the utility model discloses an embodiment, the gas outlet is haplopore, diplopore or porous form, just the gas outlet is round hole, quad slit, diamond hole or waist type hole.
According to the utility model discloses an embodiment, the blender still includes the nozzle holder, and the nozzle holder is fixed on the urceolus, be located the top of cyclone tube.
The utility model also discloses an after-treatment system, its characterized in that, after-treatment system includes as above the blender.
The utility model discloses an actively advance the effect and lie in:
the utility model discloses the blender is through optimizing internal structure, adopts novel whirl pipe and wire mesh superimposed structure, mixes NH3 and waste gas to promote the anti-crystallization ability of blender, effectively solve the precipitation problem, deal with the challenge of six products in the country. The mixer is simple in structure, and after the mixer is processed through the inline structure, the problem of crystallization and precipitation can be effectively solved with low cost and compact space, and the national emission standard is met.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which like reference numerals refer to like features throughout, and in which:
fig. 1 is a perspective view of the mixer of the present invention.
Fig. 2 is a front view of the mixer of the present invention.
Fig. 3 is a rear view of the mixer of the present invention.
Fig. 4 is an exploded view of the mixer of the present invention.
Fig. 5 is a schematic view of the air flow direction of the mixer of the present invention.
Fig. 6a is a schematic structural diagram of a front end cap in a mixer according to the present invention. Fig. 6b is a schematic structural diagram of the front end cap in the mixer of the present invention. Fig. 6c is a schematic structural diagram of the front end cap in the mixer of the present invention. Fig. 7a is a schematic structural diagram of a rear end cap in a mixer according to the present invention. Fig. 7b is a schematic structural diagram of the rear end cap in the mixer of the present invention. Fig. 7c is a schematic structural diagram of the rear end cap in the mixer of the present invention. Fig. 7d is a schematic structural diagram of the rear end cap in the mixer of the present invention. Fig. 8a is a schematic structural diagram of a guide plate in the mixer of the present invention. Fig. 8b is a schematic structural diagram of a guide plate in the mixer of the present invention. Fig. 8c is a schematic structural diagram of a third deflector in the mixer of the present invention. Fig. 8d is a fourth schematic structural view of the flow guide plate in the mixer of the present invention. Fig. 9 is a schematic structural diagram of the post-processing system of the present invention.
[ reference numerals ]
Outer cylinder 10
Inner barrel assembly 20
The first cavity A
Second cavity B
Front end cap 21
Inner cylinder 22
Rear end cap 23
Inner cylinder wall 221
Support plate 222
Mounting through hole 223
Swirl tube 30
Steel wire mesh 31
Nozzle holder 40
Swirl holes 32
Swirl tube vane 33
Air inlet 211
Gas outlet 231
Flow deflector 24
First card slot 212
Second card slot 213
Third card slot 232
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.
Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.
Fig. 1 is a perspective view of the mixer of the present invention. Fig. 2 is a front view of the mixer of the present invention. Fig. 3 is a rear view of the mixer of the present invention. Fig. 4 is an exploded view of the mixer of the present invention. Fig. 5 is a schematic view of the air flow direction of the mixer of the present invention.
As shown in fig. 1 to 5, the utility model discloses a mixer, it includes urceolus 10, inner tube subassembly 20, cyclone tube 30 and wire net 31, wherein inner tube subassembly 20 is the equal open-ended tubular structure of upper end and lower tip, installs inner tube subassembly 20 in urceolus 10 for form first cavity A between the internal face of inner tube subassembly 20 and urceolus 10, and inner tube subassembly 20's inside forms second cavity B. Wire net 31 is fixed in the bottom of cyclone tube 30, and the bottom of wire net 31 is installed perpendicularly in second cavity B, and second cavity B communicates each other with first cavity A.
Preferably, the inner cylinder assembly 20 in this embodiment includes a front end cover 21 and an inner cylinder 22, and the front end cover 21 is fixed on the inner wall surface of the outer cylinder 10 and is located inside the outer cylinder 10. The inner cylinder 22 is attached to the inner wall surface of the front end cover 21 and positioned in the outer cylinder 10, and the swirl tube 30 is vertically attached to the inner cylinder 22. Thus, the first cavity a is a space region between the inner wall surface of the front end cover 21, the outer wall surface of the inner cylinder 22, and the inner wall surface of the outer cylinder 10. The second cavity B is a space area formed by enclosing the front end cover and the inner cylinder.
Further, the inner cylinder assembly 20 of the present embodiment may further include a rear end cover 23, the rear end cover 23 is fixed on the inner wall surface of the outer cylinder 10 so as to be located inside the outer cylinder 10, and the inner cylinder 22 is located between the front end cover 21 and the rear end cover 23. Thus, the first cavity is a space region defined between the inner wall surface of the front end cap 21, the outer wall surface of the inner cylinder 22, the inner wall surface of the outer cylinder 10, and the inner wall surface of the rear end cap 23.
Furthermore, the inner cylinder 22 includes an inner cylinder wall 221 and a support plate 222 that are vertically penetrated, the support plate 222 is mounted at the bottom end portion of the inner cylinder wall 221, a mounting through hole 223 is formed in the support plate 222, the bottom portion of the steel wire mesh 31 is fixed to the mounting through hole 223, and the inner cylinder wall 221 is fixed to the inner wall surface of the front end cover 21. For example, the swirl tube 30 and the steel wire mesh 31 are vertically installed on the inner cylinder wall 221, and the support plate 222 is welded at the lower end of the inner cylinder wall 221 and used for sealing and supporting the steel wire mesh 31 and the swirl tube 30, so that the airflow is ensured to completely circulate from the inside of the swirl tube 30 to the rear end.
Here, the inner cylinder wall 221 is preferably a U-shaped inner cylinder wall, and both free ends of the U-shaped inner cylinder wall located at the side portions are fixed to the inner wall surface of the distal end cap 21. For example, a first engaging groove 212 is formed in an inner wall surface of the front end cap 21, and two free ends of a side portion of the U-shaped inner cylindrical wall are engaged with the first engaging groove 212, so that the two ends are connected to each other. Of course, the connection manner or the fixing manner is only an example, and is not limited, and other manners with general effects can be adopted to fixedly connect the inner cylinder wall and the front end cover, which are all within the protection scope of the present invention.
Further, a nozzle holder 40 is fixed to the outer cylinder 10 and positioned above the swirl tube 30. The nozzle holder 40 is fixed to the upper end of the outer tub 10 using a stainless steel casting process, wherein the installation position is required to ensure that the nozzle spray is centered on the swirl tube.
Here, a wire mesh 31 is fixed to the bottom of the cyclone tube 32 for crushing and mixing urea and exhaust gas. The steel wire mesh 31 is preferably made of thin-diameter steel wires made of stainless steel (such as 316 or 304 material) through a drawing process to produce a wave-shaped 3D mesh structure, which can provide more specific surface area in a limited space, thereby increasing the heat exchange area between the urea droplets and the exhaust gas. The steel wire mesh 31 has the density of 0.23-0.4/cm 3, and different densities are designed on the premise of ensuring the anti-crystallization capacity, so that the back pressure of the system is effectively controlled.
As shown in fig. 4, the swirl tube 30 is preferably of a cylindrical structure, a plurality of swirl holes 32 are circumferentially arranged on the cylindrical structure, a swirl tube blade 33 is arranged at each swirl hole 32, and the swirl tube blade 33 is used for guiding the airflow to uniformly enter the steel wire mesh 31 in a rotating manner, so as to ensure that the mixed gas is fully crushed and evaporated in the steel wire mesh.
Wherein, the swirl tube blade 33 of swirl tube 30 can preferably be designed at 10 ~ 16 pieces, and the opening angle control of swirl tube blade 33 is at 20 ~ 45 (based on whole backpressure requirement), and based on actual boundary requirement, swirl tube blade 33 can be designed for the structure of turning up and turning up, turns up or turns up along corresponding whirl hole 32 promptly to evenly distributed is in the upper end of swirl tube 30 for guarantee good air current direction and lower backpressure
For example, according to the actual demand of difference, cyclone tube 30 can set up to blade enstrophe scheme, and cyclone tube blade 33's quantity more than or equal to 2, perhaps cyclone tube 30 also can set up to blade evagination scheme, and cyclone tube blade 33's quantity more than or equal to 2. Of course, it is also possible to retain part of the design of swirl tube blades 33, or to provide swirl holes 32 with a trapezoidal hole structure, the number of which is greater than or equal to 2. The swirl tube structure realized by these structural changes is within the protection scope of the present invention, and is only exemplified here.
Fig. 6a is a schematic structural diagram of a front end cap in a mixer according to the present invention. Fig. 6b is a schematic structural diagram of the front end cap in the mixer of the present invention. Fig. 6c is a schematic structural diagram of the front end cap in the mixer of the present invention.
As shown in fig. 6a to 6c, in the mixer of the present invention, at least one air inlet 211 is opened on the front end cover 21, and the air inlet 211 is communicated with the second cavity B, so that the air flows into the second cavity B. The air inlet 211 may be a symmetrical air inlet formed at the center of the upper portion of the front cover 21, or an eccentric air inlet formed at the side of the upper portion of the front cover 21. The air inlet 211 on the front end cover 21 is designed to guide airflow to enter the inner cylinder wall 221 (i.e., the U-shaped inner cylinder), and the U-shaped inner cylinder guides airflow to enter the cyclone tube 30 to be mixed with ammonia gas. For example, the front end cap 21 may be a half-open design that directs the airflow into the inner wall 221, and the airflow enters the swirl tube 30 in the inner wall 221 to mix with the ammonia gas.
Here, the shape of the intake port 21 is different shapes such as a circle, a rectangle, or a triangle, and the intake area thereof is adjusted based on the back pressure requirement. It should be understood that the above description is by way of example only and that other configurations or shapes of the air inlet are within the scope of the present invention.
Fig. 7a is a schematic structural diagram of a rear end cap in a mixer according to the present invention. Fig. 7b is a schematic structural diagram of the rear end cap in the mixer of the present invention. Fig. 7c is a schematic structural diagram of the rear end cap in the mixer of the present invention. Fig. 7d is a schematic structural diagram of the rear end cap in the mixer of the present invention.
As shown in fig. 7a to 7d, in the mixer of the present invention, at least one gas outlet 231 is provided on the rear end cover 23, so that the gas outlet 231 is communicated with the first cavity a, and the mixed gas flows out from the first cavity a. The rear end cap 23 may preferably be a circular plate or a semicircular plate, and the edge shape of the rear end cap 23 is preferably matched with the inner wall surface of the outer cylinder. The air outlet 231 is preferably in the form of a single hole, double holes, or multiple holes, and the air outlet 231 may preferably be a circular hole, a square hole, a diamond hole, or a kidney-shaped hole.
Based on different operating points, under the prerequisite of guaranteeing NH 3's homogeneity and backpressure requirement, the blender can remain rear end cap 23 or get rid of rear end cap 23, all can realize the technical scheme of the utility model. If the rear cover 23 is retained, the rear cover 23 may be shaped to retain a portion of the baffle plate and provide the air outlet 231, or may be shaped to retain the entire baffle plate and provide the air outlet 231. The number of the air outlets 231 can adopt different designs such as single holes, double holes, multiple holes and the like, and the hole patterns of the air outlets 231 can adopt different shapes and combination modes such as round holes, square holes, rhombic holes, waist-shaped holes and the like, so that the uniformity of NH3 is ensured. It should be understood that the above description is by way of example only and that other configurations or shapes of the air inlet are within the scope of the present invention.
Fig. 8a is a schematic structural diagram of a guide plate in the mixer of the present invention. Fig. 8b is a schematic structural diagram of a guide plate in the mixer of the present invention. Fig. 8c is a schematic structural diagram of a third deflector in the mixer of the present invention. Fig. 8d is a fourth schematic structural view of the flow guide plate in the mixer of the present invention.
As shown in fig. 8a to 8d, in the mixer of the present invention, the mixer further includes a guide plate 24, the guide plate 24 is installed between the lower end of the front end cover 21 and the lower end of the rear end cover 23, and is located below the inner cylinder 22, so as to support the front end cover 21 and the rear end cover 23, and to guide the airflow in the first cavity a. For example, a second engaging groove 213 is provided at the lower end of the front cover 21, a third engaging groove 232 is provided at the lower end of the rear cover 23, and the baffle 24 is engaged between the second engaging groove 213 and the third engaging groove 232. The baffle 24 here may preferably be a U-shaped plate, a semi-circular plate, a straight plate or a W-shaped plate. It should be understood that the above description is by way of example only and that other configurations or shapes of the air inlet are within the scope of the present invention.
According to the structural description, as shown in fig. 1 to 3, the utility model discloses the blender is in the use, and waste gas gets into along arrow P1 the blender gets into in the inner tube (in the second cavity) by the air inlet of front end housing, and urea aqueous solution spouts into from the top along arrow P2 in the inner tube of blender (in the second cavity), and the gas after waste gas and the mixed urea aqueous solution flows out by the below of inner tube and gets into first cavity to flow out along arrow P3 the blender gets into the SCR carrier in the aftertreatment system.
Fig. 9 is a schematic structural diagram of the post-processing system of the present invention.
As shown in fig. 9, the present invention also provides an aftertreatment system comprising a DOC (diesel oxidation catalyst), a DPF (diesel particulate trap), the MIXER (MIXER) and a SCR carrier (selective catalytic reduction agent) connected therewith. Engine exhaust gas gets into through the aftertreatment ware import, and the gas after harmful substance such as DOC, DPF processing HC, CO and PM gets into the blender in, with urea fully mix in the blender, then carry out reduction reaction in getting into the SCR carrier uniformly again, reduce the crystallization, promote conversion efficiency. The business turn over gas port adopts symmetrical formula end awl design, effectively promotes gaseous homogeneity, and DPF and blender adopt the clamp mode fixed, and convenient dismantlement switch, whole size is compact, and the flange joint is unified to the interface, can effectively satisfy customer's loading demand.
Of course, the structure of the post-treatment system is merely exemplary and not limiting, and it should be understood that the post-treatment system using the mixer of the present invention is within the scope of the present invention.
To sum up, the utility model discloses the blender is through optimizing internal structure, adopts novel whirl pipe and wire mesh superimposed structure, mixes NH3 and waste gas to promote the anti-crystallization ability of blender, effectively solve the problem of deposiing, the challenge of the six products of the corresponding country. The mixer is simple in structure, and after the mixer is processed through the inline structure, the problem of crystallization and precipitation can be effectively solved with low cost and compact space, and the national emission standard is met.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.

Claims (12)

1. A mixer is characterized by comprising an outer barrel, an inner barrel assembly, a spiral-flow pipe and a steel wire mesh, wherein the inner barrel assembly is of a cylindrical structure with an upper end part and a lower end part both opened, the inner barrel assembly is installed in the outer barrel, so that a first cavity is formed between the inner barrel assembly and the inner wall surface of the outer barrel, a second cavity is formed inside the inner barrel assembly, the steel wire mesh is fixed at the bottom of the spiral-flow pipe, the bottom of the steel wire mesh is vertically installed in the second cavity, and the second cavity is communicated with the first cavity;
the inner cylinder component comprises a front end cover and an inner cylinder, and the front end cover is fixed on the inner wall surface of the outer cylinder and is positioned in the outer cylinder;
the inner cylinder is arranged on the inner wall surface of the front end cover and positioned in the outer cylinder, and the spiral flow pipe and the steel wire mesh are vertically arranged in the inner cylinder;
the first cavity is a space area among the inner wall surface of the front end cover, the outer wall surface of the inner cylinder and the inner wall surface of the outer cylinder;
the second cavity is a space region formed by enclosing the front end cover and the inner cylinder;
the inner cylinder comprises an inner cylinder wall and a supporting plate which are communicated up and down, the supporting plate is installed at the bottom end part of the inner cylinder wall, an installation through hole is formed in the supporting plate, the bottom of the steel wire mesh is fixed to the installation through hole, and the inner cylinder wall is fixed to the inner wall surface of the front end cover.
2. The mixer of claim 1 wherein the inner barrel assembly further includes a rear end cap secured to an inner wall surface of the outer barrel and positioned within the outer barrel with the inner barrel positioned between the front end cap and the rear end cap, the first cavity being a spatial region defined between the inner wall surface of the front end cap, an outer wall surface of the inner barrel, the inner wall surface of the outer barrel, and the inner wall surface of the rear end cap.
3. The mixer of claim 1 wherein the front end cap defines at least one inlet port therein, the inlet port communicating with the second chamber such that gas flows into the second chamber.
4. The mixer of claim 2, wherein the rear end cap defines at least one outlet port, the outlet port communicating with the first chamber such that the mixed gas flows out of the first chamber.
5. The mixer of claim 1 wherein the inner cylindrical wall is a U-shaped inner cylindrical wall, and wherein the two free ends of the U-shaped inner cylindrical wall at the sides are secured to the inner wall surface of the front end cap.
6. The mixer of claim 2, further comprising a baffle mounted between the lower end of the front end cap and the lower end of the rear end cap below the inner barrel for directing the airflow within the first cavity.
7. The mixer of claim 6, wherein the baffles are U-shaped, semi-circular, straight, or W-shaped.
8. The mixer of claim 3, wherein the air inlet is a symmetrical air inlet arranged at the center of the upper part of the front end cover or an eccentric air inlet arranged at the side of the upper part of the front end cover, and the shape of the air inlet is circular, rectangular or triangular.
9. The mixer of claim 4, wherein the rear end cap is a circular plate or a semicircular plate, and the edge of the rear end cap is shaped to match the inner wall surface of the outer tub.
10. The mixer of claim 4, wherein the outlet ports are in the form of single, double or multiple holes, and the outlet ports are round, square, diamond or kidney-shaped holes.
11. The mixer of claim 1 further comprising a nozzle mount secured to the outer barrel above the swirl tube.
12. An aftertreatment system comprising a mixer according to any one of claims 1 to 11.
CN202020237703.7U 2020-03-02 2020-03-02 Mixer and aftertreatment system comprising same Active CN212130586U (en)

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CN202020237703.7U CN212130586U (en) 2020-03-02 2020-03-02 Mixer and aftertreatment system comprising same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11828214B2 (en) 2020-05-08 2023-11-28 Cummins Emission Solutions Inc. Configurable aftertreatment systems including a housing
US11891937B2 (en) 2018-07-03 2024-02-06 Cummins Emission Solutions Inc. Body mixing decomposition reactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11891937B2 (en) 2018-07-03 2024-02-06 Cummins Emission Solutions Inc. Body mixing decomposition reactor
US11828214B2 (en) 2020-05-08 2023-11-28 Cummins Emission Solutions Inc. Configurable aftertreatment systems including a housing

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