CN109989809A - Exhaust aftertreatment mixing arrangement and its encapsulation - Google Patents
Exhaust aftertreatment mixing arrangement and its encapsulation Download PDFInfo
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- CN109989809A CN109989809A CN201810055394.9A CN201810055394A CN109989809A CN 109989809 A CN109989809 A CN 109989809A CN 201810055394 A CN201810055394 A CN 201810055394A CN 109989809 A CN109989809 A CN 109989809A
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- Prior art keywords
- space
- arcwall
- plate
- exhaust aftertreatment
- mixing arrangement
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Classifications
-
- 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
- F01N3/18—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 methods of operation; Control
- F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
-
- 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
- F01N3/18—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 methods of operation; Control
- F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
-
- 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
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
A kind of exhaust aftertreatment mixing arrangement and its encapsulation comprising shell and be located at the intracorporal electric hybrid module of the shell.The electric hybrid module includes the first plate, the second plate, third plate and mixer, wherein first plate is equipped with the first import and the second import for being located at two sides, and the mixer includes protrusion and the 4th space and the 5th space positioned at the lower section of the protrusion.The protrusion is equipped with first side and second side, wherein the first side is equipped with several first perforation in connection third space and the 4th space, the second side is equipped with several second perforation in connection third space and the 5th space.The shell and the electric hybrid module, which are equipped with, to cooperate to prevent the locating structure to produce relative rotation when installing the mixer with the shell.So set, convenient for assembly positioning.
Description
This application claims the applying date be on December 29th, 2017, application No. is 201711489594.7, it is entitled
This is hereby incorporated by reference in the priority of the Chinese patent application of " exhaust aftertreatment mixing arrangement and its encapsulation ", entire contents
In application.
Technical field
The present invention relates to a kind of exhaust aftertreatment mixing arrangement and its encapsulation, belong to motor exhaust post-processing technology neck
Domain.
Background technique
Research shows that ammonia distribution in exhaust gas aftertreatment system (such as selective catalytic reduction system operating, SCR system) pipeline
Uniformity coefficient has important influence to the overall performance and endurance quality of system.If ammonia, which is unevenly distributed, will lead to regional area
Ammonia causes oxynitrides (NOx) transformation efficiency too low excessively to easily cause NH_3 leakage in other ammonia thin areas.It is long
The uneven distribution of time ammonia will lead to that catalyst aging is uneven, to influence the overall performance of catalyst.In addition, urea solution
The uneven distribution of drop will cause local tube wall or mixed structure temperature is too low, forms crystallization, offgas duct can be blocked when serious, is led
Cause engine power performance decline.
Therefore, it is necessary to provide a kind of novel exhaust aftertreatment mixing arrangement and its encapsulation, asked with solving above-mentioned technology
Topic.
Summary of the invention
Exhaust aftertreatment mixing that is relatively strong the purpose of the present invention is to provide a kind of Crystallization and being easily assembled positioning
Device and with the exhaust aftertreatment mixing arrangement exhaust aftertreatment encapsulation.
To achieve the above object, the present invention adopts the following technical scheme: a kind of exhaust aftertreatment mixing arrangement comprising shell
Body and be located at the intracorporal electric hybrid module of the shell, the electric hybrid module include the first plate, the second plate, be located at described first
Third plate between plate and second plate and the mixing between first plate and the third plate
Device, wherein first plate be equipped be located at two sides the first import and the second import, the mixer include with it is described
First space of the first inlet communication, with the second space of second inlet communication and be located at first space with it is described
Third space between second space, the top in first space are connected with the third space, the second space
Top is also connected with the third space；The mixer be equipped with protruded into from bottom protrusion in the third space,
Positioned at the 4th space of the lower section of the protrusion and the 5th space and be located at the 4th space and the 5th space it
Between the 6th space；The protrusion is equipped with first side and second side, and the first side, which is equipped with, is connected to the third
Several first perforation in space and the 4th space, the second side are empty equipped with the connection third space and the described 5th
Between it is several second perforation；Second plate be equipped with the first outlet that be connected to the 4th space and with the 5th sky
Between the second outlet that is connected to；The third plate is equipped with the first through hole being connected to the 6th space and will come from institute
The air-flow for stating first through hole respectively leads to the second through-hole of first space and second space；The shell is mixed with described
Component, which is equipped with, to cooperate to prevent the locating structure to produce relative rotation when installing the mixer with the shell.
Technical solution as a further improvement of that present invention, first import are connected along axial with first space
Logical, second import is connected along axial with the second space, and first space and the second space are substantially along diameter
It is connected to the third space, the first outlet is connected along axial with the 4th space, the second outlet edge
Axial to be connected with the 5th space, the 6th space is connected along axial with the first through hole.
Technical solution as a further improvement of that present invention, the third plate are equipped with to be presented axially in described the
First baffle portion in four spaces and the second baffle portion to be presented axially in the 5th space.
Technical solution as a further improvement of that present invention, second through-hole are located at the first baffle portion and institute
State the outside in second baffle portion；The 7th space, second through-hole point are equipped between second plate and the third plate
It is not connected to the 7th space and first space and the 7th space and the second space.
Technical solution as a further improvement of that present invention, the mixer are equipped with the first arcwall and with described first
The first partition wall that arcwall matches, described first is spatially located between first arcwall and first partition wall.
Technical solution as a further improvement of that present invention, first partition wall, which is equipped with, is fixed on first arcwall
Bottom the first fixed part and the first adjutage positioned at the inside of first arcwall；First arcwall and institute
It states and defines the first eddy flow direction between the first partition wall.
Technical solution as a further improvement of that present invention, the mixer are equipped with the second arcwall and with described second
The second partition wall that arcwall matches, the second space is between second arcwall and second partition wall.
Technical solution as a further improvement of that present invention, second partition wall, which is equipped with, is fixed on second arcwall
Bottom the second fixed part and the second adjutage positioned at the inside of second arcwall, second arcwall and institute
State and define the second eddy flow direction between the second partition wall, wherein first eddy flow direction be clockwise with counterclockwise in one
It is a, second eddy flow direction be clockwise with counterclockwise in another.
Technical solution as a further improvement of that present invention, the protrusion are connected to first arcwall and described the
Between two arcwalls；The mixer further includes being fixed on first curving portion and second curving portion below the protrusion,
Wherein the 4th space is located at least in described first and curves between portion and the first side, and the 5th space is located at least in
Described second curves between portion and the second side.
Technical solution as a further improvement of that present invention, first eddy flow direction and second eddy flow direction exist
In the cross section of the shell；4th space and the 5th space also respectively define the in the cross section
Three eddy flow directions and the 4th eddy flow direction, wherein third eddy flow direction is roughly the same with first eddy flow direction, it is described
4th eddy flow direction is roughly the same with second eddy flow direction.
Technical solution as a further improvement of that present invention, the protrusion, first arcwall and described second
Arcwall is bent to form by one piece of plate, is on the whole substantially in ω shape.
Technical solution as a further improvement of that present invention, the shell are equipped with locating slot on its circumference；Described first
It curves portion and second portion of curving and is equipped with the lug being inserted in the locating slot.
Technical solution as a further improvement of that present invention, the shell are additionally provided with corresponding to described on its circumference
One, the second fluting for curving portion；After the lug is inserted into the locating slot, by being carried out in outside to the fluting
Filling welding, will be exposed in the fluting first, second curves portion and the shell is realized and connected.
Technical solution as a further improvement of that present invention, first arcwall, the second arcwall, protrusion, first
The location structure being mutually located is equipped between partition wall and the second partition wall and corresponding first, third plate.
Technical solution as a further improvement of that present invention, the location structure are slit and flange.
Technical solution as a further improvement of that present invention, first plate are equipped with several first slits and several the
Two slits；The third plate is equipped with several third slits and several 4th slits；First arcwall, the second arc
Wall, protrusion, the first partition wall and the second partition wall, which are respectively equipped with, is located in corresponding first, second, third, fourth slit
In the first flange.
Technical solution as a further improvement of that present invention, first plate be equipped be located at first import with it is described
Recess between second import, first arcwall, the second arcwall and protrusion further respectively have be located in it is corresponding
Second flange at the edge of the first import, the second import and recess.
The invention further relates to a kind of encapsulation of exhaust aftertreatment comprising the first post-processing carrier module is located at described first
Post-process the second post-processing carrier module in the downstream of carrier module and positioned at the downstream of the second post-processing carrier module
Third post-process carrier module, exhaust aftertreatment encapsulation further include be located at the second post-processing carrier module with it is described
Third post-processes the aforementioned exhaust aftertreatment mixing arrangement between carrier module.
Compared to the prior art, mixer of the invention takes full advantage of the cross section of shell, interior in a limited space to increase
Added Urea Evaporation away from discrete time, improve the uniformity of air-flow mixing；It is arranged by setting third plate and on it
The air-flow from the first through hole to be respectively led to the second through-hole of the first space and second space, so set,
The tow sides of the higher air-flow guide ridges of row's temperature can be enhanced heat exchange, improve the efficiency of Urea Evaporation.Separately
Outside, it is cooperated by setting to prevent the locating structure to produce relative rotation when installing the mixer with the shell,
Convenient for assembly positioning.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of exhaust aftertreatment mixing arrangement of the present invention.
Fig. 2 is the stereoscopic schematic diagram of another angle 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 stereoscopic schematic diagram removed in Fig. 1 after shell.
Fig. 6 is the stereoscopic schematic diagram of another angle of Fig. 5.
Fig. 7 is the part isometric exploded view of Fig. 5.
Fig. 8 is the main view removed in Fig. 3 after the first plate.
Fig. 9 is the diagrammatic cross-section of line A-A in Fig. 8.
Figure 10 is the stereogram exploded view of Fig. 7.
Specific embodiment
It please join shown in Fig. 1 to Figure 10, present invention discloses a kind of exhaust aftertreatment mixing arrangements 100, for such as SCR
The tail gas of engine is handled in after-treatment system.The exhaust aftertreatment mixing arrangement 100 is including shell 1 and is installed on institute
State the electric hybrid module 2 in shell 1.
In illustrative embodiments of the present invention, the shell 1 is cylindrical, is equipped with to 1 sunken inside of shell
Mounting plate 11 and the mounting base 12 being welded on the mounting plate 11.The mounting base 12 (is not schemed to install urea nozzle
Show) to spray urea droplets into the electric hybrid module 2.
The electric hybrid module 2 includes the first plate 3, the second plate 4, is located at first plate 3 and second plate 4
Between third plate 5 and the mixer 6 between first plate 3 and the third plate 5.First plate
3, the second plate 4 and third plate 5 are each attached in the shell 1.First plate 3, which is equipped with, is located at the of two sides
One import 31 and the second import 32.In addition, first plate 3 be additionally provided be disposed below and be located at first import 31 with
Recess 33 between second import 32.First plate 3 is equipped with several first slits 34 and several second slits 35.
It please join shown in Fig. 4, Fig. 6 and Figure 10, second plate 4 is equipped with the first outlet 41 and second positioned at its two sides
Outlet 42.The first outlet 41 and the second outlet 42 are respectively positioned on the edge of second plate 4.
The third plate 5 is equipped with first baffle portion 51, second baffle portion 52, is located at the first baffle portion 51 and second
First through hole 53 between baffle portion 52 and positioned at the first baffle portion 51 and two second of 52 outside of second baffle portion
Through-hole 54.The third plate 5 is equipped with several third slits 55 and several 4th slits 56.
Please join shown in Fig. 5 to Figure 10, the mixer 6 include the first space 61 being connected to the first import 31, with it is described
The second space 62 of second import 32 connection and the third sky between first space 61 and the second space 62
Between 63, the top in first space 61 is connected with the third space 63, the top of the second space 62 and described the
Three spaces 63 are also connected.First space 61, the second space 62 and the third space 63 axial direction (be vented into
Enter direction) on blocked by second plate 4 and third plate 5 so that a part of air-flow must be from the first, second space
61, it 62 enters in third space 63.Urea droplets of the urea nozzle to the jet atomization into the third space 63.
Specifically, the first separation that the mixer 6 includes the first arcwall 64, matches with first arcwall 64
It wall 65, the second arcwall 66, the second partition wall 67 matched with second arcwall 66 and is protruded into from bottom described
Protrusion 68 in third space 63, wherein first space 61 is located at first arcwall 64 and first partition wall
Between 65, the second space 62 is between second arcwall 66 and second partition wall 67, the third space
63 between first partition wall 65 and the second partition wall 67.First partition wall 65, which is equipped with, is fixed on first arc
First fixed part 651 of the bottom of shape wall 64 and the first adjutage 652 positioned at the inside of first arcwall 64.At this
In invention embodiment illustrated, the bottom of first arcwall 64 is equipped with the first locating slot 641, first fixed part
651 are inserted in first locating slot 641 with reality positioning.So set, being easy to implement accurate group of the first partition wall 65
Dress.It please join shown in Fig. 8, the first eddy flow direction S1 is defined between first arcwall 64 and first partition wall 65.Institute
It states the second partition wall 67 and is equipped with the second fixed part 671 for being fixed on the bottom of second arcwall 66 and positioned at described second
Second adjutage 672 of the inside of arcwall 66.In illustrative embodiments of the present invention, the bottom of second arcwall 66
Equipped with the second locating slot 661, second fixed part 671 is inserted in second locating slot 661 with reality positioning.So set
It sets, is easy to implement the accurate assembling of the second partition wall 67.It is defined between second arcwall 66 and second partition wall 67
The second eddy flow direction S2.First eddy flow direction S1 be clockwise with counterclockwise in one, second eddy flow direction
S2 be clockwise with counterclockwise in another.It please join shown in the hollow arrow in Fig. 8, in illustrative embodiments of the present invention
In, first eddy flow direction S1 is that clockwise, second eddy flow direction S2 is counterclockwise.So set, can
To make full use of the cross section of exhaust aftertreatment mixing arrangement 100, urea is improved in a manner of forming double-cyclone and is vented mixed
Distance is closed, Urea Evaporation and mixed uniformity are improved, Crystallization is stronger.In illustrative embodiments of the present invention, institute
Protrusion 68 is stated to be connected between first arcwall 64 and second arcwall 66.The protrusion 68, described first
Arcwall 64 and second arcwall 66 are bent to form by one piece of plate, are on the whole substantially in ω shape.In addition, for reality
It is now accurately positioned, first arcwall 64, the second arcwall 66, protrusion 68, the first partition wall 65 and the second partition wall
The location structure being mutually located is equipped between 67 and corresponding first, third plate 3,5.In illustrative embodiments of the present invention
In, the location structure is slit and flange.Specifically, please join shown in Fig. 6, Fig. 7 and Figure 10, first arcwall 64,
Two arcwalls 66, protrusion 68, the first partition wall 65 and the second partition wall 67, which are respectively equipped with, is located in corresponding first,
Two, third, the first flange 691,693 in the 4th slit 34,35,55,56.In addition, first arcwall 64, the second arc
Wall 66 and protrusion 68 further respectively have the edge for being located in corresponding first import 31, the second import 32 and recess 33
Second flange 692.
It please join shown in Fig. 7 to Figure 10, the protrusion 68 is equipped with first side 681, second side 682, connection described the
First top margin 683 of a side 681 and the second side 682, the bottom outwardly extending first from the first side 681
Bottom edge 684 and outwardly extending second bottom edge 685 in bottom from the second side 682.In the embodiment party that the present invention illustrates
In formula, the angle of the first side 681 and the second side 682 is at an acute angle, first top margin 683, the first bottom edge 684
And second bottom edge 685 be in arc-shaped.
The mixer 5, which is equipped with, to be located at the first of 68 lower section of the protrusion and curves portion 71 and second curve portion 72,
Described in mixer 5 further include positioned at the protrusion 68 lower section the 4th space 74 and the 5th space 75 and be located at described in
The 6th space 76 between 4th space 74 and the 5th space 75；4th space 74 is located at least in described first and curves
Between portion 71 and the first side 681, the 5th space 75 is located at least in described second and curves portion 72 and described second side
Between side 682.It please join shown in Figure 10, the first side 681, which is equipped with, is connected to the third space 63 and the 4th space 74
Several first perforation 6811, if the second side 682, which is equipped with, is connected to the third space 63 and the 5th space 75
Dry second perforation 6821.
In order to preferably position within the case 1 electric hybrid module 2, the shell 1 is equipped with phase interworking with the electric hybrid module 2
The locating structure of conjunction.In illustrative embodiments of the present invention, the locating structure is locating slot and lug.Specifically, described
Shell 1 is equipped with locating slot 13 on its circumference；Described first curve portion 71 with described second curve portion 72 be equipped be inserted in positioning
Lug 79 in slot 13.In addition, in order to realize better fixation, the shell 1 is additionally provided with corresponding to described on its circumference
One, the second fluting 14 for curving portion 71,72；After the lug 79 is inserted into locating slot 13, by opening in outside this
Slot 14 is filled welding, and will be exposed in the fluting 14 first, second curves portion 71,72 and realize with the shell 1
Connection.
First perforation 6811 is advantageously implemented that urea is broken to make thinner with second perforation 6821
Grain, and enhance heat exchange, to be conducive to preferably evaporation.In illustrative embodiments of the present invention, the 6th space 76 can
It allows exhaust to heat protrusion 68, further decreases crystallization risk.
It please join shown in Fig. 8, the 4th space 74 is also respectively defined with the 5th space 75 positioned at the cross section
Interior third eddy flow direction S3 and the 4th eddy flow direction S4, wherein third eddy flow direction S3 and first eddy flow direction S1
Roughly the same, the 4th eddy flow direction S4 is roughly the same with second eddy flow direction S2.So set, can make full use of
The mixing distance of urea and exhaust is improved in the cross section of exhaust aftertreatment mixing arrangement 100 in a manner of forming double-cyclone, improves
Urea Evaporation and mixed uniformity, Crystallization are stronger.
The first baffle portion 51 of the third plate 5 is presented axially in the 4th space 74, the third plate 5
Second baffle portion 52 be presented axially in the 5th space 75, with play the role of stop air-flow.
The 7th space 77 is equipped between second plate 4 and the third plate 5, second through-hole 54 is respectively communicated with
7th space 77 and first space 61 and it is connected to the 7th space 77 and the second space 62.So set
It sets, it can be by the tow sides of the higher air-flow guide ridges 68 of row's temperature, enhancing heat exchange, to improve the effect of Urea Evaporation
Rate.
In illustrative embodiments of the present invention, first import 31 is connected along axial with first space 61,
Second import 32 is connected along axial with the second space 62, and first space 61 and the second space 62 are substantially
Radially it is connected with the third space 63, the first outlet 41 is connected along axial with the 4th space 74, described
Second outlet 42 is connected along axial with the 5th space 75, and the 6th space 76 is along axial with 53 phase of first through hole
Connection.
It please join shown in Fig. 8 to Figure 10, when the exhaust of engine enters in the exhaust aftertreatment mixing arrangement 100,
A part exhaust enters in mixer 5 from the first, second import 31,32, and another part exhaust enters directly through recess 33
Into the 6th space 76；The exhaust in the first, second space 61,62 is entered under the guiding of arcuate structure respectively along
One, second eddy flow direction S1, S2 is rotated into third space 63 from two sides；When meeting injection conditions, urea nozzle to
Urea is sprayed in third space 63, the urea droplets of atomization rotate mixing together with the exhaust of engine, and pass through first, second
Perforation 6811,6821 enters in the four, the 5th spaces 74,75.It please join shown in Fig. 8, the exhaust of urea droplets and engine
Mixture is flowing to the four, the 5th spaces 74,75 in double-cyclone along third eddy flow direction S3 and the 4th eddy flow direction S4, finally
It is left from the first, second outlet 41,42.Meanwhile it is a degree of by the second plate 4 to enter the exhaust in the 6th space 76
Stop, a degree of heating can be provided to mixer 5；In addition, please join shown in the dotted arrow below in Fig. 9, exhaust can
To enter in the first, second space 61,62 by the 7th space 77 and the revolution of the second through-hole 54, to realize to protrusion 68
Tow sides all heated, improve the efficiency of Urea Evaporation.
The invention further relates to a kind of encapsulation of exhaust aftertreatment comprising the first post-processing carrier module (not shown) is located at
The second of the downstream of the first post-processing carrier module post-processes carrier module (not shown) and after described second
The third for managing the downstream of carrier module post-processes carrier module (not shown).The exhaust aftertreatment mixing arrangement is located at described the
Between two post-processing carrier modules and third post-processing carrier module.Preferably, the first post-processing carrier module is
Oxidation catalyzer (DOC), the second post-processing carrier module are diesel particulate trap (DPF), and third post-processing carrier module is
Selective catalytic reduction device (SCR).
It should be noted that the orientation such as "upper" described in the present invention, "lower", " top ", " bottom " should not make-game
The understanding of limit, because of the difference according to element placement position, these positional relationships should also be as carrying out adaptability understanding.In addition, with
Upper embodiment is merely to illustrate the present invention and not limits the technical scheme described by the invention, and understanding of this description should
Based on person of ordinary skill in the field, although this specification is referring to the above embodiments to present invention has been detailed
Thin explanation, still, those skilled in the art should understand that, person of ordinary skill in the field still can be to this
Invention is modified or replaced equivalently, and all do not depart from the technical solution and its improvement of the spirit and scope of the present invention,
It should cover in scope of the presently claimed invention.
Claims (18)
1. a kind of exhaust aftertreatment mixing arrangement comprising shell and be located at the intracorporal electric hybrid module of the shell, feature exists
In: the electric hybrid module includes the first plate, the second plate, the third between first plate and second plate
Plate and the mixer between first plate and the third plate, wherein first plate is equipped with position respectively
In two sides the first import and the second import, the mixer include with the first space of first inlet communication, with it is described
The second space of second inlet communication and the third space between first space and the second space, described
The top in one space is connected with the third space, and the top of the second space is also connected with the third space；Institute
It states mixer and is equipped with the protrusion protruded into the third space from bottom, positioned at the 4th space of the lower section of the protrusion
With the 5th space and the 6th space between the 4th space and the 5th space；The protrusion is equipped with first
Side and second side, the first side are equipped with the connection third space and wear with several the first of the 4th space
Hole, the second side are equipped with several second perforation for being connected to the third space and the 5th space；Second plate
Equipped with the first outlet being connected to the 4th space and the second outlet being connected to the 5th space；The third plate
It is described equipped with the first through hole being connected to the 6th space and to respectively lead to the air-flow from the first through hole
Second through-hole of the first space and second space；The shell is equipped with the electric hybrid module and cooperates to prevent from installing
The locating structure to produce relative rotation when the mixer with the shell.
2. exhaust aftertreatment mixing arrangement as described in claim 1, it is characterised in that: first import along it is axial with it is described
First space is connected, and second import is connected along axial with the second space, first space and described second
Space is substantially radially connected with the third space, and the first outlet is connected along axial with the 4th space, institute
It states second outlet to be connected along axial with the 5th space, the 6th space is connected along axial with the first through hole.
3. exhaust aftertreatment mixing arrangement as claimed in claim 2, it is characterised in that: the third plate is equipped in axis
It is located at the first baffle portion in the 4th space and the second gear to be presented axially in the 5th space upwards
Plate portion.
4. exhaust aftertreatment mixing arrangement as claimed in claim 3, it is characterised in that: second through-hole is located at described
The outside in first baffle portion and the second baffle portion；The 7th space is equipped between second plate and the third plate,
Second through-hole is respectively communicated with the 7th space and first space and the 7th space and the second space.
5. exhaust aftertreatment mixing arrangement as described in claim 1, it is characterised in that: the mixer is equipped with the first arcwall
And the first partition wall matched with first arcwall, described first is spatially located at first arcwall and described the
Between one partition wall.
6. exhaust aftertreatment mixing arrangement as claimed in claim 5, it is characterised in that: first partition wall, which is equipped with, to be fixed on
First fixed part of the bottom of first arcwall and the first adjutage positioned at the inside of first arcwall；It is described
The first eddy flow direction is defined between first arcwall and first partition wall.
7. exhaust aftertreatment mixing arrangement as claimed in claim 6, it is characterised in that: the mixer is equipped with the second arcwall
And the second partition wall matched with second arcwall, the second space are located at second arcwall and described the
Between two compartment wall.
8. exhaust aftertreatment mixing arrangement as claimed in claim 7, it is characterised in that: second partition wall, which is equipped with, to be fixed on
Second fixed part of the bottom of second arcwall and the second adjutage positioned at the inside of second arcwall, it is described
The second eddy flow direction is defined between second arcwall and second partition wall, wherein first eddy flow direction is clockwise
With counterclockwise in one, second eddy flow direction be clockwise with counterclockwise in another.
9. exhaust aftertreatment mixing arrangement as claimed in claim 8, it is characterised in that: the protrusion is connected to described first
Between arcwall and second arcwall；The mixer further include be fixed below the protrusion first curve portion with
And second curve portion, curves between portion and the first side wherein the 4th space is located at least in described first, described
Five spaces are located at least in described second and curve between portion and the second side.
10. exhaust aftertreatment mixing arrangement as claimed in claim 9, it is characterised in that: first eddy flow direction with it is described
Second eddy flow direction is in the cross section of the shell；4th space is also respectively defined with the 5th space to be located at
Third eddy flow direction and the 4th eddy flow direction in the cross section, wherein third eddy flow direction and the first eddy flow side
To roughly the same, the 4th eddy flow direction is roughly the same with second eddy flow direction.
11. exhaust aftertreatment mixing arrangement as claimed in claim 7, it is characterised in that: the protrusion, first arc
Wall and second arcwall are bent to form by one piece of plate, are on the whole substantially in ω shape.
12. exhaust aftertreatment mixing arrangement as claimed in claim 9, it is characterised in that: the shell is equipped on its circumference
Locating slot；Described first, which curves portion and second portion of curving, is equipped with the lug being inserted in the locating slot.
13. exhaust aftertreatment mixing arrangement as claimed in claim 12, it is characterised in that: the shell is also set on its circumference
Have and corresponds to the described first, second fluting for curving portion；After the lug is inserted into the locating slot, by outside
Welding is filled to the fluting, will be exposed in the fluting first, second curves portion and the shell is realized and connected
It connects.
14. exhaust aftertreatment mixing arrangement as claimed in claim 9, it is characterised in that: first arcwall, the second arc
The positioning being mutually located is equipped between wall, protrusion, the first partition wall and the second partition wall and corresponding first, third plate
Structure.
15. exhaust aftertreatment mixing arrangement as claimed in claim 14, it is characterised in that: the location structure be slit with it is convex
Edge.
16. exhaust aftertreatment mixing arrangement as claimed in claim 15, it is characterised in that: first plate is equipped with several the
One slit and several second slits；The third plate is equipped with several third slits and several 4th slits；Described first
Arcwall, the second arcwall, protrusion, the first partition wall and the second partition wall, which are respectively equipped with, is located in corresponding first,
Two, third, the first flange in the 4th slit.
17. exhaust aftertreatment mixing arrangement as claimed in claim 16, it is characterised in that: first plate, which is equipped with, is located at institute
The recess between the first import and second import is stated, first arcwall, the second arcwall and protrusion are also distinguished
The second flange equipped with the edge for being located in corresponding first import, the second import and recess.
18. a kind of exhaust aftertreatment encapsulation comprising the first post-processing carrier module is located at the first post-processing carrier module
Downstream second post-processing carrier module and positioned at it is described second post-processing carrier module downstream third post-process carry
Body component, which is characterized in that exhaust aftertreatment encapsulation further includes being located at the second post-processing carrier module and described the
Three post-processing carrier modules between exhaust aftertreatment mixing arrangement, the exhaust aftertreatment mixing arrangement be claim 1 to
Exhaust aftertreatment mixing arrangement described in any one of 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/093001 WO2019128163A1 (en) | 2017-12-29 | 2018-06-27 | Tail gas after-treatment mixing apparatus and package thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489594 | 2017-12-29 | ||
| CN2017114895947 | 2017-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109989809A true CN109989809A (en) | 2019-07-09 |
Family
ID=67062989
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810055394.9A Pending CN109989809A (en) | 2017-12-29 | 2018-01-19 | Exhaust aftertreatment mixing arrangement and its encapsulation |
| CN201810055395.3A Pending CN109989810A (en) | 2017-12-29 | 2018-01-19 | Exhaust aftertreatment mixing arrangement and its encapsulation |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810055395.3A Pending CN109989810A (en) | 2017-12-29 | 2018-01-19 | Exhaust aftertreatment mixing arrangement and its encapsulation |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN109989809A (en) |
| WO (1) | WO2019128164A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848005A (en) * | 2019-11-26 | 2020-02-28 | 无锡亿利环保科技有限公司 | Engine tail gas aftertreatment mixing arrangement |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764989B (en) * | 2020-06-29 | 2023-05-26 | 东风商用车有限公司 | Efficient post-treatment packaging SCR mixer system and treatment method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009112891A (en) * | 2007-11-02 | 2009-05-28 | Hitachi High-Technologies Corp | Fluid mixer |
| JP2010144569A (en) * | 2008-12-17 | 2010-07-01 | Fuji Heavy Ind Ltd | Selective reduction catalyst device |
| CN107489500B (en) * | 2016-06-13 | 2021-03-16 | 天纳克（苏州）排放***有限公司 | Tail gas aftertreatment device |
| CN206016937U (en) * | 2016-08-29 | 2017-03-15 | 无锡威孚力达催化净化器有限责任公司 | Spoiler structure in for exhaust aftertreatment |
| CN206360755U (en) * | 2016-11-25 | 2017-07-28 | 天纳克（苏州）排放***有限公司 | Exhaust gas post-treatment device |
| CN106640301A (en) * | 2017-02-22 | 2017-05-10 | 天纳克（苏州）排放***有限公司 | Tail gas post-treatment device |
| CN107120162B (en) * | 2017-06-29 | 2023-01-20 | 杭州银轮科技有限公司 | Mixing device for engine tail gas aftertreatment system |
-
2018
- 2018-01-19 CN CN201810055394.9A patent/CN109989809A/en active Pending
- 2018-01-19 CN CN201810055395.3A patent/CN109989810A/en active Pending
- 2018-06-27 WO PCT/CN2018/093002 patent/WO2019128164A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848005A (en) * | 2019-11-26 | 2020-02-28 | 无锡亿利环保科技有限公司 | Engine tail gas aftertreatment mixing arrangement |
| CN110848005B (en) * | 2019-11-26 | 2020-10-20 | 无锡亿利环保科技有限公司 | Engine tail gas aftertreatment mixing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109989810A (en) | 2019-07-09 |
| WO2019128164A1 (en) | 2019-07-04 |
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