CN209413971U - Engine exhaust post-processes mixing arrangement - Google Patents
Engine exhaust post-processes mixing arrangement Download PDFInfo
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- CN209413971U CN209413971U CN201920042005.9U CN201920042005U CN209413971U CN 209413971 U CN209413971 U CN 209413971U CN 201920042005 U CN201920042005 U CN 201920042005U CN 209413971 U CN209413971 U CN 209413971U
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- baffle
- post
- engine exhaust
- fine fibre
- mixing arrangement
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Abstract
A kind of engine exhaust post-processing mixing arrangement, it include to the shell of urea nozzle is installed, be mounted on the intracorporal first baffle of the shell and be mounted in the shell and with the spaced second baffle of the first baffle, the shell forms the mixing chamber between the first baffle and the second baffle.The engine exhaust post-processing mixing arrangement further includes the support plate being located in the mixing chamber and the fine fibre element being mounted in the support plate.The mixing chamber includes the first cavity and the second cavity；The first baffle is equipped with the exhaust entrance being connected with first cavity, and the second baffle is equipped with the air exit being connected with second cavity；Urea droplets of the urea nozzle to the jet atomization into the mixing chamber, the fine fibre element for exhaust and the urea droplets to pass through, to further increase the broken and evaporation of the urea droplets.
Description
Technical field
The utility model relates to a kind of engine exhausts to post-process mixing arrangement, belong to exhaust gas aftertreatment techniques field.
Background technique
It is all currently the mixing for reaching urea droplets and exhaust with mixer metal structure in the industry.In general, in mixer
The structures such as middle setting porous plate, fin allow the mixer of urea droplets and metal structure to collide to keep urea droplets broken
It is broken into smaller drop, to be conducive to evaporate and be pyrolyzed in metal surface.
It is had existed by way of designing Z-shaped partition and being matched with mixing tube in the prior art and arranges the trend of air-flow
And the mixing of urea droplets and exhaust；However, Z-shaped diaphragm structure is complicated, and change is easy to happen under the action of high-temperature exhaust air
Shape.
Therefore, it is necessary to provide the novel solution of one kind to solve above-mentioned technical problem.
Utility model content
The purpose of this utility model is to provide a kind of mixed performances compared with the simple engine exhaust post-processing of strong and structure
Mixing arrangement.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of engine exhaust post-processing mixing dress
It sets comprising installing the shell of urea nozzle, being mounted on the intracorporal first baffle of the shell and being mounted on the shell
It is interior and with the spaced second baffle of the first baffle, the shell forms positioned at the first baffle and described second
Mixing chamber between baffle, engine exhaust post-processing mixing arrangement further include the support plate in the mixing chamber with
And it is mounted on the fine fibre element in the support plate, the mixing chamber includes positioned at the first of one end of the fine fibre element
Second cavity of cavity and the other end positioned at the fine fibre element；The first baffle is equipped with and the first cavity phase
The exhaust entrance of connection, the second baffle are equipped with the air exit being connected with second cavity；The urea nozzle is used
With the urea droplets of the jet atomization into the mixing chamber, the fine fibre element for exhaust and the urea droplets to wear
It crosses, to further increase the broken and evaporation of the urea droplets.
As the further improved technical solution of the utility model, the fine fibre element is steel wool or foam metal
Or the porous material of ceramics.
As the further improved technical solution of the utility model, first cavity is located at the upper of the fine fibre element
End, second cavity are located at the lower end of the fine fibre element.
As the further improved technical solution of the utility model, the first baffle set there are two the exhaust entrance with
And the perforation between exhaust entrance described in the two.
As the further improved technical solution of the utility model, the second baffle is equipped with from rear end and seals described first
The retaining wall portion of cavity.
As the further improved technical solution of the utility model, the second baffle includes from the retaining wall portion to downward
The extension stretched, the air exit are two and are located at the two sides of the extension.
As the further improved technical solution of the utility model, the extension is to the direction far from the first baffle
Deviate, the end of the extension is fixed on the inner wall of the shell.
As the further improved technical solution of the utility model, the support plate and the first baffle and described the
Two baffles are fixed together, and the support plate is equipped with the first side wall and second sidewall to the fine fibre component shrinkage.
As the further improved technical solution of the utility model, the first side wall and/or the second sidewall have
Air-flow to be oriented to the rake of the fine fibre element.
As the further improved technical solution of the utility model, the support plate includes connecting the first side wall and institute
The connection wall of second sidewall is stated, the connection wall is equipped with the mounting hole for installing the fine fibre element.
Compared to the prior art, the utility model makes urea droplets in fine fibre element by setting fine fibre element
Surface and internal generation are adequately crushed and mix.In addition, by by support plate and the thin fibre being mounted in the support plate
It ties up element to be arranged between first baffle and second baffle, dexterously simplifies structure.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model engine exhaust post-processing mixing arrangement.
Fig. 2 is the stereogram exploded view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the right view of Fig. 1.
Fig. 5 is the diagrammatic cross-section of line A-A in Fig. 3.
Specific embodiment
It please join shown in Fig. 1 to Fig. 5, the utility model discloses a kind of engine exhaust post-processing mixing arrangement 100, is used for
The tail gas of engine is handled in engine exhaust post-processing encapsulation.Engine exhaust post-processing encapsulation includes after first
Reason carrier module (not shown), the second post-processing carrier module positioned at the downstream of the first post-processing carrier module (are not schemed
Show) and positioned at it is described second post-processing carrier module downstream third post-processing carrier module (not shown).It is described to start
Machine exhaust aftertreatment mixing arrangement 100 be located at it is described second post-processing carrier module and the third post-processing carrier module it
Between.Preferably, the first post-processing carrier module is oxidation catalyzer (DOC), and the second post-processing carrier module is diesel oil
Grain trap (DPF), it is selective catalytic reduction device (SCR) that third, which post-processes carrier module,.
The engine exhaust post-processing mixing arrangement 100 includes shell 1, the first baffle 2 being mounted in the shell 1
And be mounted in the shell 1 and with the spaced second baffle 3 of the first baffle 2.The shell 1 is practical new at this
It is substantially cylindrical in type embodiment illustrated comprising to install the mounting base 11 of urea nozzle.
It please join shown in Fig. 5, the shell 1 forms the mixing between the first baffle 2 and the second baffle 3
Chamber 10.The engine exhaust post-processing mixing arrangement 100 further includes support plate 4 and installation in the mixing chamber 10
Fine fibre element 5 in the support plate 4.The mixing chamber 10 includes positioned at the first of one end of the fine fibre element 5
Second cavity 102 of cavity 101 and the other end positioned at the fine fibre element 5.In the embodiment party of the utility model diagram
In formula, first cavity 101 is located at the upper end of the fine fibre element 5, and second cavity 102 is located at the fine fibre member
The lower end of part 5.
It please join shown in Fig. 1 and Fig. 3, the first baffle 2 is in the form of annular discs.Preferably, the outer rim welding of the first baffle 2
It is fixed on the inner wall of the shell 1.The first baffle 2 is equipped with the exhaust entrance 21 being connected with first cavity 101.
Preferably, the exhaust entrance 21 is two, and is arranged symmetrically.The first baffle 2 further includes being located at the two described exhausts
Perforation 22 between entrance 21, the perforation 22 can play adjustment effect to back pressure.Quantity as the perforation 22 and big
It is small, it can flexible setting according to actual needs.The perforation 22 further includes positioned at its lower edge and the several of arc-shaped arrangement are led to
Hole 23, the through-hole 23 are connected to second cavity 102, can play the function of adjusting back pressure.
It please join shown in Fig. 1, Fig. 4 and Fig. 5, the second baffle 3 is equipped with the retaining wall that first cavity 101 is sealed from rear end
The air exit in portion 31, the extension 32 extended downwardly from the retaining wall portion 31 and the two sides for being located at the extension 32
33.The outer rim of the second baffle 3 is weldingly fixed on the inner wall of the shell 1, including the end of the extension 32.
In the utility model embodiment illustrated, the extension 32 deviates to the direction far from the first baffle 2, described to prolong
Extending portion 32 is equipped with rake 321.
The support plate 4 is fixed together with the first baffle 2 and the second baffle 3.Preferably, described first
Baffle 2 and the second baffle 3 are equipped with welding groove 211,311, the support plate 4 by the welding groove 211,311 with it is described
First baffle 2 and the second baffle 3 are welded and fixed together.The support plate 4, which is equipped with to the fine fibre element 5, shrinks
The first side wall 41, second sidewall 42 and the connection the first side wall 41 and the second sidewall 42 connection wall 43.It is described
The first side wall 41 and/or the second sidewall 42 have the rake 44 air-flow to be oriented to the fine fibre element 5.It is described
Connection wall 43 is equipped with the mounting hole 431 for installing the fine fibre element 5.The utility model is by by support plate 4 and being mounted on
Fine fibre element 5 in the support plate 4 is arranged between first baffle 2 and second baffle 3, dexterously simplifies structure, nothing
Z-shaped partition need to be set.
The fine fibre element 5 includes the porous material of steel wool or foam metal or ceramics.The utility model benefit
With the 3D porous structure or multiple-void structure of fine fibre element 5 (such as steel wool), exhaust and the urea droplets are passed through
The fine fibre element 5 makes urea droplets adequately be crushed and mix on the surface of steel wool and internal generation.In addition, steel wool
Line footpath it is smaller, gap is complicated, large specific surface area.Because of large specific surface area, in a limited space in can create it is bigger
Heat exchange area, is conducive to urea droplets and exhaust occurs relatively adequately to exchange heat, to be conducive to the evaporation and pyrolysis of urea droplets, mentions
High Crystallization.The back pressure of system can be correspondingly adjusted by the adjusting of the density to fine fibre element 5.It please join Fig. 2
Shown, in the utility model embodiment illustrated, the fine fibre element 5 includes being weldingly fixed on one by soldering processes
The tube body 51 risen.The tube body 51 is mounted in the mounting hole 431 and mutually fixes with the inner wall of the mounting hole 431.
In addition, above embodiments are merely to illustrate the utility model and not limit technical side described in the utility model
Case, understanding of this description should be based on persons of ordinary skill in the field, although this specification is referring to above-mentioned
Embodiment has been carried out detailed description to the utility model, still, those skilled in the art should understand that, affiliated skill
The technical staff in art field still can be modified or replaced equivalently the utility model, and all not depart from this practical new
The technical solution and its improvement of the spirit and scope of type, should all cover in the scope of the claims of the utility model.
Claims (10)
1. a kind of engine exhaust post-processes mixing arrangement comprising to install the shell of urea nozzle, be mounted on the shell
Intracorporal first baffle and be mounted in the shell and with the spaced second baffle of the first baffle, the shell
Form the mixing chamber between the first baffle and the second baffle, which is characterized in that after the engine exhaust
The fine fibre element that mixing arrangement further includes the support plate in the mixing chamber and is mounted in the support plate is handled,
The mixing chamber includes positioned at first cavity of one end of the fine fibre element and positioned at the another of the fine fibre element
Second cavity at end；The first baffle is equipped with the exhaust entrance being connected with first cavity, and the second baffle is equipped with
The air exit being connected with second cavity；Urea solution of the urea nozzle to the jet atomization into the mixing chamber
Drop, the fine fibre element for exhaust and the urea droplets to pass through, to further increase the broken of the urea droplets
Broken and evaporation.
2. engine exhaust as described in claim 1 post-processes mixing arrangement, it is characterised in that: the fine fibre element is steel
The porous material of velvet or foam metal or ceramics.
3. engine exhaust as described in claim 1 post-processes mixing arrangement, it is characterised in that: first cavity is located at institute
The upper end of fine fibre element is stated, second cavity is located at the lower end of the fine fibre element.
4. engine exhaust as described in claim 1 post-processes mixing arrangement, it is characterised in that: the first baffle is equipped with two
A exhaust entrance and the perforation between exhaust entrance described in the two.
5. engine exhaust as described in claim 1 post-processes mixing arrangement, it is characterised in that: the second baffle be equipped with from
Rear end seals the retaining wall portion of first cavity.
6. engine exhaust as claimed in claim 5 post-processes mixing arrangement, it is characterised in that: the second baffle includes certainly
The extension that the retaining wall portion extends downwardly, the air exit are two and are located at the two sides of the extension.
7. engine exhaust as claimed in claim 6 post-processes mixing arrangement, it is characterised in that: the extension is to far from institute
The direction for stating first baffle is deviateed, and the end of the extension is fixed on the inner wall of the shell.
8. engine exhaust as described in claim 1 post-processes mixing arrangement, it is characterised in that: the support plate and described the
One baffle and the second baffle are fixed together, and the support plate is equipped with the first side wall to the fine fibre component shrinkage
And second sidewall.
9. engine exhaust as claimed in claim 8 post-processes mixing arrangement, it is characterised in that: the first side wall and/or
The second sidewall has the rake air-flow to be oriented to the fine fibre element.
10. engine exhaust as claimed in claim 8 post-processes mixing arrangement, it is characterised in that: the support plate includes connecting
The connection wall of the first side wall Yu the second sidewall is connect, the connection wall is equipped with the installation for installing the fine fibre element
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920042005.9U CN209413971U (en) | 2019-01-10 | 2019-01-10 | Engine exhaust post-processes mixing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920042005.9U CN209413971U (en) | 2019-01-10 | 2019-01-10 | Engine exhaust post-processes mixing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209413971U true CN209413971U (en) | 2019-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920042005.9U Active CN209413971U (en) | 2019-01-10 | 2019-01-10 | Engine exhaust post-processes mixing arrangement |
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| CN (1) | CN209413971U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020143391A1 (en) * | 2019-01-10 | 2020-07-16 | 天纳克（苏州）排放系统有限公司 | Engine exhaust aftertreatment mixing device |
| WO2021223360A1 (en) * | 2020-05-07 | 2021-11-11 | 天纳克（苏州）排放系统有限公司 | Tail gas aftertreatment mixing device and tail gas aftertreatment device |
-
2019
- 2019-01-10 CN CN201920042005.9U patent/CN209413971U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020143391A1 (en) * | 2019-01-10 | 2020-07-16 | 天纳克（苏州）排放系统有限公司 | Engine exhaust aftertreatment mixing device |
| WO2021223360A1 (en) * | 2020-05-07 | 2021-11-11 | 天纳克（苏州）排放系统有限公司 | Tail gas aftertreatment mixing device and tail gas aftertreatment device |
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