CN106232955A - There is the perforation mixing tube of cyclone - Google Patents
There is the perforation mixing tube of cyclone Download PDFInfo
- Publication number
- CN106232955A CN106232955A CN201580020574.8A CN201580020574A CN106232955A CN 106232955 A CN106232955 A CN 106232955A CN 201580020574 A CN201580020574 A CN 201580020574A CN 106232955 A CN106232955 A CN 106232955A
- Authority
- CN
- China
- Prior art keywords
- tubular portion
- exhaustor
- blade
- treatment systems
- mixing tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002156 mixing Methods 0.000 title claims abstract description 86
- 239000003638 chemical reducing agent Substances 0.000 claims description 42
- 238000011144 upstream manufacturing Methods 0.000 claims description 27
- 238000001802 infusion Methods 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 18
- 239000003054 catalyst Substances 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 235000013877 carbamide Nutrition 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- F01N3/2066—Selective catalytic reduction [SCR]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4315—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being deformed flat pieces of material
- B01F25/43151—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being deformed flat pieces of material composed of consecutive sections of deformed flat pieces of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
- B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
- B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
- B01F25/102—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components wherein the vortex is created by two or more jets introduced tangentially in separate mixing chambers or consecutively in the same mixing chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/32—Injector mixers wherein the additional components are added in a by-pass of the main flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4315—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being deformed flat pieces of material
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/93—Arrangements, nature or configuration of flow guiding elements
- B01F2025/931—Flow guiding elements surrounding feed openings, e.g. jet nozzles
-
- 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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
-
- 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
-
- 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
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
After-treatment system can include exhaustor and mixing tube.Exhaustor receives aerofluxus from electromotor.Mixing tube is arranged in exhaustor and can include multiple blades that tubular portion and the longitudinal end from this tubular portion extend.Tubular portion can include the multiple openings extended through inner diameter surface and the outer diameter surface of this tubular portion.Tubular portion and the plurality of blade can limit integral part of entity.
Description
Technical field
Present disclosure relates to the after-treatment system of vehicle, and relates more specifically to the perforation mixing with band cyclone
The after-treatment system of pipe.
Background technology
This part provides the background information relevant to present disclosure and is not necessarily prior art.
Present in aerofluxus already in connection with reduction combustion engine, nitrogen oxides uses SCR technology.
Many utilizes the vehicle of combustion engine to be equipped with the exhaust gas post-treatment device for reducing nitrogen oxides emissions.These systems
In some systems be by use technology based on carbamide construct, include the appearance for storing reducing agent (such as carbamide)
Device and for by reducing agent from the delivery system of this container transport to exhaust stream.Blender is typically provided for use in reduction
The reducing agent of injection is mixed before arriving the catalyst reacted by agent with aerofluxus.Although these systems may be
Past performance is good, it would be desirable to provide the blender of a kind of improvement, in order to making reducing agent and exhaust stream more efficiently and
Effectively mix, and more equally distributed reducing agent is provided in the larger area of catalyst, reduce reducing agent stream simultaneously
The body accumulation impacting and reducing reducing agent deposit on the surface of blender.
Summary of the invention
This part provides the overview of present disclosure rather than its four corner or the full disclosure of its whole features.
In one form, present disclosure provides a kind of after-treatment system, this after-treatment system can include exhaustor and
Mixing tube.Exhaustor can receive aerofluxus from electromotor and can include Part I and the restriction limiting the first longitudinal axis
Part II relative to angled second longitudinal axis of this first longitudinal axis.Mixing tube can be disposed in exhaustor
And tubular portion and the collar radially extended from this tubular portion can be included.Tubular portion can include multiple opening
With multiple deflectors.The plurality of opening can extend through the inner diameter surface of tubular portion and outer diameter surface.The plurality of
Deflector each can be arranged adjacent to a corresponding opening in the plurality of opening.
In certain embodiments, tubular portion can be coaxial with the Part II of exhaustor.
In certain embodiments, deflector can stretch out from outer diameter surface.
In certain embodiments, deflector can extend internally from inner diameter surface.
In certain embodiments, the collar can extend from the downstream end of tubular portion.
In certain embodiments, the collar can include cyclone, and this cyclone has and radially extends from tubular portion
Multiple blades.
In certain embodiments, these blades each can include the outside end of the inside end in footpath and footpath.These footpaths are outside
End can be spaced apart from each other.
In certain embodiments, the inner diameter surface of the outside end in footpath contact exhaustor.
In certain embodiments, these blades each can include contact pin, and this contact pin is inside in footpath from the edge of this blade
Between the outside end of end and footpath, radial inward extends.
In certain embodiments, the edge that radially extends of these blades can be angled so that the footpath of each blade
Inwardly the outer end of end and same blade does not lines up each other in terms of rotation.
In certain embodiments, the cross point between the first longitudinal axis and the second longitudinal axis can be arranged in tubulose
Within part.
In certain embodiments, the first longitudinal axis and the second longitudinal axis can be substantially perpendicular to each other.
In certain embodiments, after-treatment system may include that at the upstream termination of this tubular portion along this second indulge
The reducing agent infusion appliance arranged to axis.
In certain embodiments, after-treatment system can include the catalyst converter being disposed in the downstream of mixing tube.
In another form, present disclosure provides a kind of after-treatment system, this after-treatment system can include exhaustor and
Mixing tube.Exhaustor can receive aerofluxus from electromotor and can include Part I and the restriction limiting the first longitudinal axis
Part II relative to angled second longitudinal axis of this first longitudinal axis.Mixing tube can be disposed in exhaustor
And tubular portion and the cyclone radially extended from this tubular portion can be included.Tubular portion can include through this tubulose
Multiple openings that the inner diameter surface of part and outer diameter surface extend.Cyclone can include from tubular portion radially towards extension
The multiple blades stretched.
In certain embodiments, tubular portion can be coaxial with the Part II of exhaustor.
In certain embodiments, tubular portion can include multiple deflector.These deflectors each can be many adjacent to this
A corresponding opening in individual opening is arranged.
In certain embodiments, deflector can stretch out from outer diameter surface.
In certain embodiments, deflector can extend internally from inner diameter surface.
In certain embodiments, cyclone can extend from the downstream end of tubular portion.
In certain embodiments, these blades each can include the outside end of the inside end in footpath and footpath.These footpaths are outside
End can be spaced apart from each other.
In certain embodiments, the outside end in footpath can contact the inner diameter surface of exhaustor.
In certain embodiments, these blades each can include contact pin, and this contact pin is inside in footpath from the edge of this blade
Between the outside end of end and footpath, radial inward extends.
In certain embodiments, the edge that radially extends of these blades can be angled so that the footpath of each blade
Inwardly the outer end of end and same blade does not lines up each other in terms of rotation.
In certain embodiments, the cross point between the first longitudinal axis and the second longitudinal axis can be arranged in tubulose
Within part.
In certain embodiments, the first longitudinal axis and the second longitudinal axis can be substantially perpendicular to each other.
In certain embodiments, after-treatment system may include that at the upstream termination of this tubular portion along this second indulge
The reducing agent infusion appliance arranged to axis.
In certain embodiments, after-treatment system can include the catalyst converter being disposed in the downstream of mixing tube.
In another form, present disclosure provides a kind of side aerofluxus and reducing agent being carried out in after-treatment system and mixing
Method.The method can be included in the exhaustor that aerofluxus flows through from electromotor offer mixing arrangement.Mixing arrangement is permissible
Including tubular portion.By the multiple openings in this tubular portion, the Part I of aerofluxus can be received at tubular portion
In.The Part II that can allow aerofluxus flows between tubular portion and the inner diameter surface of exhaustor.Can be by reducing agent
It is injected in tubular portion.The first rotational flow pattern can be produced within tubular portion.Can produce with the Part II of aerofluxus
Raw second rotational flow pattern, this second rotational flow pattern surrounds the first rotational flow pattern.
In certain embodiments, the first rotational flow pattern can be the one in clockwise and counterclockwise, and
Second rotational flow pattern can be the another one in clockwise and counterclockwise.In certain embodiments, the first eddy flow figure
Case and the second rotational flow pattern can be identical directions.
In certain embodiments, the first eddy flow can be produced with the multiple deflectors radially extended from tubular portion
Pattern.
In certain embodiments, the first eddy flow can be produced with the multiple deflectors extended from tubular portion radial inward
Pattern.
In certain embodiments, the second eddy flow figure can be produced with the multiple blades radially extended from tubular portion
Case.
In certain embodiments, the method can include first rotational flow pattern in mixing arrangement downstream and the second eddy flow figure
Case merges.
In another form, present disclosure provides a kind of after-treatment system, this after-treatment system can include exhaustor and
Mixing tube.Exhaustor receives aerofluxus from electromotor and includes Part I and angled relative to this Part I second
Point.It is multiple that mixing tube is arranged in exhaustor and can include that tubular portion and the longitudinal end from this tubular portion extend
Blade.Tubular portion can include multiple openings of inner diameter surface and the outer diameter surface extending through this tubular portion.Should
Each in multiple blades can extend to the downstream of tubular portion and radially extend from tubular portion.
In certain embodiments, exhaustor includes upstream portion and relative to the angled downstream part of this upstream portion.
These blades can bend around the longitudinal axis of the downstream part of exhaustor.
In certain embodiments, these blades can include the most spiral shape.
In certain embodiments, multiple blades and tubular portion limit integral part of entity.
In certain embodiments, mixing tube includes one section of even transition (such as, without rib), and this even transition is at this
Step is not had between tubular portion and the plurality of blade.
In certain embodiments, the plurality of opening be arranged to around this tubular portion extend circumferentially multiple rows of.Adjacent
The opening of row can not line up on the direction of longitudinal axis being parallel to tailpipe downstream part each other.
In certain embodiments, this after-treatment system can include annular construction member, this annular construction member be arranged in exhaustor it
In and be located radially between the interior diameter of tailpipe downstream part and the radially end portion of the plurality of blade.Annular structure
Part can support the plurality of blade relative to exhaustor.
In certain embodiments, tubular portion includes multiple deflector.Each deflector in the plurality of deflector
Can arrange adjacent to a corresponding opening in the plurality of opening.
In certain embodiments, deflector stretches out from outer diameter surface.
In certain embodiments, each blade in the plurality of blade includes the far-end with L-shaped profile.
In certain embodiments, these blades each can include the outside end of the inside end in footpath and footpath.These footpaths are outside
End is spaced apart from each other.
In certain embodiments, this after-treatment system includes reducing agent infusion appliance, and this reducing agent infusion appliance is at tubular portion
Upstream termination at along exhaustor downstream part longitudinal axis arrange；And catalyst converter, this catalyst is disposed in mixing
Pipe and the downstream of reducing agent infusion appliance.
The one flowing along multiple flow paths of the fluid of downstream part is flowed into, often from the Part I of exhaustor
Individual flow path has different size of radius.In certain embodiments, a blade in these blades is along radius minimum
Flow path arrangement.
In certain embodiments, this mixing tube limits first exhaust flow path and second exhaust flow path, and this is first years old
Exhaust flow path flows through at least one in these openings, this second exhaust flow path outside at tubular portion and
Flow between the blades.
In certain embodiments, second exhaust flow path is around the annular flow path that tubular portion extends.
These blades each include the first end being attached to tubular portion and spaced apart with tubular portion and be not attached
The second end to adjacent blades.
Other scope of applications will be understood from description provided herein.Explanation and instantiation in this general introduction are only intended to use
The scope of present disclosure it is not intended to limit in descriptive purpose.
Accompanying drawing explanation
Accompanying drawing described here be only used for selected embodiment rather than to the illustrative mesh of likely embodiment
, and it is not intended to limit the scope of present disclosure.
Fig. 1 is schematically showing of the electromotor according to present disclosure principle and exhaust after treatment system；
Fig. 2 is the perspective view of the mixing tube being disposed in the exhaustor of after-treatment system；
Fig. 3 is mixing tube and the viewgraph of cross-section of exhaustor of Fig. 2；
Fig. 4 is the perspective view of mixing tube；
Fig. 5 is the plan view of the downstream end of mixing tube；
Fig. 6 is the plan view of the downstream end of another embodiment of the mixing tube of the principle according to present disclosure；
Fig. 7 is another mixing tube according to present disclosure principle and the cross sectional view of exhaustor；
Fig. 8 is the perspective view of the mixing tube of Fig. 7；
Fig. 9 is the plan view of the downstream end of the mixing tube of Fig. 7；
Figure 10 is another mixing tube according to present disclosure principle and the cross sectional view of exhaustor；
Figure 11 is the perspective view of the mixing tube of Figure 10；
Figure 12 is the plan view of the downstream end of the mixing tube of Figure 10；
Figure 13 is another mixing tube according to present disclosure principle and the cross sectional view of exhaustor, and this cross section is along the line of Figure 14
13-13 intercepts；And
Figure 14 is mixing tube and the plan view of exhaustor of Figure 13.
Running through the some views in accompanying drawing, corresponding reference number represents corresponding part.
Detailed description of the invention
It is described more fully with multiple exemplary embodiment referring now to accompanying drawing.
Provide multiple illustrative embodiments so that the disclosure is detailed, and its scope is informed fully this
The technical staff in field.Elaborating many specific details, such as specific parts, the example of apparatus and method, to provide right
The detailed understanding of the embodiment of present disclosure.Specific details need not be used the most apparently, and
Illustrative embodiments can be implemented by multiple different form and these specific details should be construed as being to originally draping over one's shoulders
The restriction of the scope of dew.In some exemplary embodiments, be not described in known to process, the apparatus structure known and
Known to technology.
Term as used herein is only in order at and describes the purpose of certain exemplary embodiments and be not intended to limit.As
This is used, and singulative " a kind of ", " one " and " being somebody's turn to do " can be intended to also include plural form, unless context is clearly
Otherwise indicated.Term " includes ", " containing ", " comprising " and " having " are all inclusive and therefore specify institute's features set forth,
The existence of integer, step, operation, element and/or parts, but do not exclude the presence of or add one or more other features, integer,
Step, operation, element, parts and/or their set.These method steps described herein, process and operation should be by
It is construed to necessarily require them to perform by the particular order discussing or show, execution sequence unless otherwise indicated.Also should manage
Solve, other or substituting step can be used.
When an element or layer relate to " ... on ", " being joined to ", " being connected to " or " being connected to " another element or layer
Time, it can be directly on this another element or layer, engage, be connected or coupled to this another element or layer, or can deposit
At intermediary element or layer.By contrast, when an element relate to " directly exist ... on ", " being directly joined to ", " be directly connected to
To " or " being directly coupled to " another element or during layer, it is possible to there is not intermediary element or layer.For describing between these elements
Other words of relation should explain in a similar fashion (such as, " and between " with " directly between ", " adjacent " with " directly
Adjacent " etc.).As used in this, term "and/or" includes one or more any and institute of the Listed Items being associated
There is combination.
Although term " first ", " second ", " the 3rd " etc. can be used to describe different element, parts, region, layer at this
And/or part, but these elements, parts, region, layer and/or part should be not limited by these terms.These terms can
To be only used for distinguishing an element, parts, region, layer or part with another region, layer or part.Term such as "
One ", " second " and other numerical terms do not imply that sequence or order at this, unless clearly indicated by the context when using.Therefore,
First element, parts, region, layer or part discussed below can be referred to as the second element, parts, region, layer or part, and
Content is taught without departing from these exemplary embodiments.
Space correlation term, such as " interior ", " outward ", " under ", " lower section ", " bottom ", " top ", " top " etc. at this be
So that to the element gone out as shown in these drawings or feature relative to another or multiple element or one or many
The description of the relation of individual feature is prone to explaination.Space correlation term can be intended in addition to the orientation being described in the drawings
Device different orientation in use or operation.Such as, if device is reversed in the drawings, be then described as " under
Side " or " under " element or feature will be oriented as in other elements or feature " top ".Therefore, exemplary term " lower section "
Two kinds of orientations above and below can containing.Device can be otherwise oriented (90-degree rotation or at other be orientated), and at this
The space correlation descriptor used is made that corresponding explanation.
With reference to Fig. 1, it is provided that exhaust after treatment system 10, this exhaust after treatment system can include exhaustor 12, reduction
Agent delivery systems 14, after-treatment device 16 and mixing tube 18.Exhaustor 12 can receive the aerofluxus discharged from combustion engine 20.
It is discharged into the aerofluxus in exhaustor 12 and can flow through mixing tube 18 and after-treatment device 16 before being disposed to surrounding enviroment.
Exhaustor 12 can include defining 90 degree of Part I bent 22 and Part II 24.Part I 22 can
To be limited by the first longitudinal axis A1 (Fig. 3), and Part II 24 can be limited by the second longitudinal axis A2 (Fig. 3).
Although exhaustor 12 is shown as having 90 degree of bendings in the drawings, it should be appreciated that exhaustor 12 can have less than or
Bending more than 90 degree and can have any suitable configuration, such as S-shaped (i.e. multiple bends).In some embodiments
In, exhaustor 12 can be included in the Part III (not shown) in the downstream of Part II 24, and this Part III can approximate flat
Row is in Part I 22.
Reducing agent (such as carbamide or ammonia) can be pumped to reducing agent infusion appliance from storage tank 26 by reducing agent delivery system 14
28, this reducing agent infusion appliance can spray reductant among exhaust stream at mixing tube 18 or in this mixing tube upstream.Mixing
Pipe 18 can make reducing agent mix with aerofluxus with mixture enter the reducing agent that provides before after-treatment device 16 evenly with
The mixture of aerofluxus and evaporated the water by rush carbamide is converted into ammonia.
After-treatment device 16 can e.g. SCR (SCR) catalyst converter.At reducing agent and after-treatment device
Conversion of nitrogen oxides in aerofluxus can be such as nitrogen (N by the reaction between 162), water and/or carbon dioxide.
Referring now to Fig. 1 to Fig. 5, mixing tube 18 can include tubular portion 30 and cyclone or the collar 32.Flow through
The Part I of this aerofluxus of exhaustor 12 can flow in tubular portion 30 and the Part II of aerofluxus can be around pipe
Shape part 30 flows and through the collar 32.Tubular portion 30 can include upstream termination 34 and downstream end 36.Upstream termination
34 can be against the wall 38 of the Part I 22 of exhaustor 12.Infusion appliance installing plate 40 can extend and in upstream through wall 38
Extend at end 34 in tubular portion 30.The hole 41 that reducing agent infusion appliance 28 can be passed through in infusion appliance installing plate 40 extends
And extend in tubular portion 30.
Tubular portion 30 can include and the longitudinal axis of the second longitudinal axis A2 (Fig. 3) conllinear.Tubular portion 30 is permissible
Including external diameter, this external diameter is less than Part I and the internal diameter of Part II 22,24 of exhaustor 12.Tubular portion 30 can include
Diameter around tubular portion 30 in a row extend and between the upstream termination and downstream end 34,36 of tubular portion 30 in column
Extend the multiple openings 42 and multiple deflector 44 arranged.Opening 42 can through tubular portion 30 outer diameter surface and interior directly
Surface, footpath 46,48 extends.Deflector 44 can be partially cut or imprint out tubular portion 30 and (be consequently formed these openings
42) and inwardly bend in tubular portion 30.
Some fluids flowing through exhaustor 12 to Part II 24 from Part I 22 can enter through opening 42
Enter tubular portion 30 and can guide in tubular portion 30, produce the first rotational flow pattern in direction of rotation by deflector 44,
This first rotational flow pattern carrys out vortex around longitudinal axis A2.This rotational flow pattern contribute to the atomization of reducing agent and reducing agent with
Aerofluxus mixes.Rotational flow pattern can also be restricted or prevented reducing agent fluid in mixing tube 18, exhaustor 12 and/or post processing
Impact on the surface of device 16, which reduces the reducing agent deposit on mixing tube, exhaustor 12 and after-treatment device 16
Formation and/or accumulation.In certain embodiments, mixing tube 18 can include that hydrolyzed coatings is to reduce at mixing tube 18 further
On the formation of reducing agent deposit and/or accumulation.
Although deflector 44 is shown as extending inwardly in tubular portion 30, in some embodiments in Fig. 2 to Fig. 5
In, the outer diameter surface 46 that deflector 44 can be formed from tubular portion 30 extends outwardly, as shown in FIG. 6.When leading
When stream plate 44 radially extends, the chance forming reducing agent deposit on deflector 44 can be reduced further, the most still
So can effectively produce the rotational flow pattern in tubular portion 30.
The collar 32 can be substantially conical in its global shape and can be from end, the downstream of tubular portion 30
End 36 is radially and axial downstream ground extends.The collar 32 can be soldered and/or otherwise be fastened to annulus 30
On.In certain embodiments, the collar 32 can be integrally formed with tubular portion 30.In certain embodiments, tubular portion 30
And the transition part between the collar 32 can be smooth, without rib and/or seamless.These transition parts i.e. can not include such as
Step or ridge.Transition part smooth, without rib can be reduced through the back pressure in the exhaust stream of mixing tube 18.Smooth, mistake without rib
The portion of crossing can also reduce or prevent reducing agent deposit and/or the accumulation on mixing tube 18 of other deposits.
The collar 32 can include the multiple leaves arranged with the circular array extended around the longitudinal axis of tubular portion 30
Sheet 50.Blade 50 each can include body 52 and the first contact pin extended from body 52 and the second contact pin 54,56.As at Fig. 5
Shown in, body 52 can be at an angle of relative to the longitudinal axis of tubular portion 30 and arranges and can include near-end 58 (i.e.
The inside end in footpath), far-end 60 (i.e. the outside end in footpath) and between near-end 58 and far-end 60 extend the first lateral edge 62 and
Second lateral edge 64.Body 52 can be customized for specifically applying relative to the angle of this longitudinal axis, to realize being wished
The amount of turbulence hoped.First contact pin 54 can carry out radial inward from the second lateral edge 64 towards the longitudinal axis of tubular portion 30 and prolong
Stretch.Second contact pin 56 can from far-end 60 radial inward and the most downstream.Second contact pin 56 can contact exhaustor 12
The inner diameter surface of Part II 24.In certain embodiments, the second contact pin 56 can be soldered and/or otherwise solid
Determine in the inner diameter surface of Part II 24.
As shown in FIG. 5, the lateral edge 62,64 of body 52 can be angled so that each blade 50 near
End 58 does not lines up each other with the far-end 60 of identical blade 50 in terms of rotation.That is, when observing from the reference frame of Fig. 5,
Along with each blade radially extends from tubular portion 30, each blade 50 can be angularly with the most clockwise
Side upwardly extends.It is to be appreciated that in certain embodiments, when observing from the reference frame of Fig. 5, along with each blade from
Tubular portion 30 radially extends, and each blade 50 can be angularly to extend with upper on the whole.
The geometry of blade 50 and blade 50 orientation, tubular portion 30 and exhaustor 12 relative to each other can make
Flow through the fluid of the collar 32 with around longitudinal axis A2 and around the first rotation of the fluid flowing through tubular portion 30
Second rotation of flow graph case or rotational flow pattern flow.The coaxial rotational flow pattern of the two may cause at reducing agent and exhaust stream
Move the mixing of after-treatment device 16 improvement of reducing agent and aerofluxus before.Additionally, the mixing of this improvement can be by also
Length of tube shorter between former dose of infusion appliance 28 and after-treatment device 16 (with in prior art after-treatment system in order to be sufficiently mixed
And may need compare) realize.
It will be recognized that blade 50 and deflector 44 may be oriented such that the first rotational flow pattern and the second eddy flow
Pattern rotates with identical direction of rotation or with contrary direction of rotation.In certain embodiments, tubular portion 30 is except these
Outside generally flat deflector 44 or instead can include the multiple spoons being radially therefrom inwardly or radially extending
Shape part (not shown).Additionally or alternatively, outside the collar 32 disleaf sheet 50 or instead can include multiple spoonfuls of shape parts (not
Illustrate).Such as, these spoonful of shape part can include the geometry of three-dimensional bending and/or the geometry of spiral, to cause eddy flow
Pattern.In certain embodiments, the collar 32 can be circular cone or funnel shaped component, this circular cone or funnel shaped component wherein
There are the multiple blades of replacement or one or more openings of spoon shape part.
Although mixing tube 18 is described above as quantitatively feeding application for SCR, it should be appreciated that mixing tube 18
Can be used for Hydrocarbon and quantitatively feed application, wherein, the Hydrocarbon of injection can be mixed by mixing tube 18 with aerofluxus
Close.
With reference to Fig. 7 to Fig. 9, it is provided that mixing tube 18 can be replaced and another mixing tube of being installed in exhaustor 12
118.Except any difference shown in discussed below and/or accompanying drawing, the 26S Proteasome Structure and Function of mixing tube 118 can with more than
The 26S Proteasome Structure and Function of the mixing tube 18 described is similar or identical.Mixing tube 118 can include tubular portion 130 and from tubular portion
Multiple blades 150 that the downstream end 136 of 130 extends.Infusion appliance mounting disc 140 can extend through the wall 38 of exhaustor 12 also
And the upstream extremity 134 of joining tubular part 130.Above-mentioned reducing agent infusion appliance 28 can be passed through in infusion appliance installing plate 140
Hole 141 extends and can inject reductant in tubular portion 130.As discussed previously with respect to mixing tube 18, mixing tube 118
Turbulent flow can be induced, with association in flow to the exhaust stream of Part II 24 of exhaustor 12 from the Part I 22 of exhaustor 12
Help the mixing of reducing agent and aerofluxus.
Tubular portion 130 can include inner diameter surface 143 and outer diameter surface 144 and multiple opening 142, the plurality of opens
Mouth extends through inner diameter surface 143 and outer diameter surface 144.Although the opening 142 shown in Fig. 7 and Fig. 8 has circular shape
Shape, it will be appreciated that opening 142 can have any shape, such as rectangle, square or ellipse.Additionally, each opening
The size of 142 and the total quantity of opening 142 can also change.
Opening 142 can be arranged to the multiple parallel 146 (Fig. 7) extended circumferentially around tubular portion 130.As
Shown in Fig. 7, the opening 142 of adjacent row 146 can not line up on the direction being parallel to the second longitudinal axis A2 each other.Opening
142 can be arranged in row 148 (being parallel to the second longitudinal axis A2 extend), and these row each include 146 open in every line
An opening in mouth 142.The arrangement of opening 142 reduces or prevents the drop edge struck in inner diameter surface 143
Inner diameter surface 143 flows any development length.That is, this drop through clashing into may be followed along inner diameter surface 143
Any path being parallel to (or being nearly parallel to) second longitudinal axis A2 by the one eventually arrived in opening 142 and will lead to
Cross the flowing of the aerofluxus through and around opening 142 and be sucked back in exhaust airstream.
Blade 150 may be located remotely from the downstream end 136 of tubular portion 130 and downstream extends and the most radially outward
Extend.Blade 150 bends around the second longitudinal axis A2 while downstream extending.As shown in Figures 7 and 8, blade 150
Can limit by the integral part of entity of the sheet material shared with tubular portion 130.Between tubular portion 130 and blade 150
Transition part 152 can be smooth, without rib and/or seamless.I.e. these transition parts 152 can not include such as step or
Ridge.Transition part 152 smooth, without rib can be reduced through the back pressure in the exhaust stream of mixing tube 118.Smooth, transition without rib
Portion 152 can also reduce or prevent reducing agent deposit and/or the accumulation on mixing tube 118 of other deposits.
In certain embodiments, blade 150 can include cross section or the profile of L-shaped generally.In this way, each blade
The Part I 154 of 150 can extend the most outwardly and the Part II 156 of each blade 150 can be basic
On downstream direction extend.In certain embodiments, blade 150 can have the most spiral shape.Implement at some
In example, blade 150 can be plane and angled rather than spiral generally.The exact amount of blade 150,
Shape and spacing can be different from the blade 150 described in Fig. 7 to Fig. 9.The shape of the blade 150 shown in Fig. 7 to Fig. 9 and
Configuration, relative to other blade configuration, promotes the turbulent flow in exhaust stream while reducing back pressure.That is, blade 150 can be by
It is designed so that (that is, mixing tube 118 has the least increasing by producing turbulent flow simultaneously for the structure of most of or all increase back pressures
Add back pressure and asynchronously increase the structure of turbulent flow).It will be appreciated that and can use any suitable quantity, shape and/or spacing
To adapt to the application given.Such as, blade 150 can be similar to the blade in Fig. 1 to Fig. 6 or in the Subgraph of Figure 10 to Figure 14
Ground molding and/or spaced apart.
With reference to Figure 10 to Figure 12, it is provided that mixing tube 18 or mixing tube 118 can be replaced and be arranged in exhaustor 12
Another mixing tube 218.Except any difference shown in discussed below and/or accompanying drawing, the 26S Proteasome Structure and Function of mixing tube 218
Can be similar or identical with the 26S Proteasome Structure and Function of mixing tube 18 described above or mixing tube 118.Therefore, similar feature will not
Describe in detail again.
Mixing tube 218 can include tubular portion 230 and multiple blade 250.Tubular portion 230 can include extending through
The inner diameter surface 243 of this tubular portion 230 and multiple openings 242 of outer diameter surface 244.Deflector 246 can be by part
Ground cutting or imprint out tubular portion 230 (being consequently formed these openings 242) and can from tubular portion 230 generally radially
Extend outwardly and extend in updrift side generally.As it has been described above, deflector 246 can increase the fluid stream in exhaustor 12
Turbulent flow and the vortex motion in fluid stream can be promoted.
With reference to Figure 13 and Figure 14, it is provided that another exhaustor 312 and another mixing tube 318.Except discussed below
And/or accompanying drawing shown in any difference, the 26S Proteasome Structure and Function of exhaustor 312 and mixing tube 318 can be with described above
The 26S Proteasome Structure and Function of any one in exhaustor 12 and mixing tube 18,118,218 is similar or identical.Therefore, similar feature will
It is not described in detail.In brief, exhaustor 312 can include first being at an angle of relative to Part II 324 and/or bending
Part 322.As shown in Figure 13, interior ell part 326 (relative to the referential of Figure 14, is arranged in the 12 of Part II 324
At o'clock position 327) and outer ell part 328 (relative to the referential of Figure 14, be arranged in the six o'clock position of Part II 324
Put at 329) transition part between Part I 322 and Part II 324 can be limited.Aerofluxus from electromotor 20 (Fig. 1)
Part II 324 can be flowed to from Part I 322 through exhaustor 312.
At the transition part that mixing tube 318 can be arranged in exhaustor 312 between Part I 322 and Part II 324
Or at this transition part.Mixing tube 318 can include tubular portion 330 and multiple blade 350.Support ring 320 can be provided
With reinforced blade 350 and relative to exhaustor 312 support blade 350.Support ring 320 can be the most cylindrical and annular
Component, and be disposed in the radially part of inner diameter surface 325 and the blade 350 of the Part II 324 of exhaustor 312
Between 351 (Figure 14).The longitudinal axis of support ring 320 can be altogether with the longitudinal axis A2 of the Part II 324 of exhaustor 312
Line.Support ring 320 can be by such as press-in cooperation joint inner diameter surface 325 and radially part 351.Real at some
Executing in example, support ring 320 can be soldered and/or otherwise be securely attached to inner diameter surface 325 and radially
Part 351.
As shown in Figure 13, support ring 320 includes upstream axial end 360 and downstream axial end 362.Implement at some
In example, axially upstream end 360 can be arranged to and exhaustor 312 interior ell part 326 generally near but radially between
Separate.In such an embodiment, in order to flow in the Part II 324 of exhaustor 312, aerofluxus can not be immediately along interior ell portion
Points 326 flowings and must separate with interior ell part 326, enter support ring 320 and (that is, prop up passing axially upstream end 360
Pushing out ring 320 forces aerofluxus to take broader turning to enter the Part II 324 at twelve-hour position 327).
As shown in Figure 14, mixing tube 318 can in an angularly be positioned among exhaustor 312, so makes these leaves
One in sheet 350 is arranged in twelve-hour position 327.Exhaust flow path from Part I 322 to Part II 324
370 from interior ell part 326 more away from the radius that had the biggest.Therefore, at twelve-hour position 327, support is flowed through
The exhaust flow path 370 of ring 320 has the shortest radius.Therefore, big exhaust volume can be along leading to twelve-hour position
The flow path 370 of 327 flows.Therefore, the one in these blades 350 being arranged in twelve-hour position 327 can be favourable
Ground produces more turbulent flow in exhaustor 312, because big exhaust volume is by by being arranged at twelve-hour position 327
Blade 350 affects.
It should be understood that the axial length of support ring 320, relative to blade 350, can axial than shown in Figure 13
Length is longer or shorter.In certain embodiments, support ring 320 potentially include through support ring 320 inner diameter surface and
The opening (not shown) that outer diameter surface radially extends.
Although blade 50,150,250,350 be illustrated in the drawings and be described above into from tubular portion 30,130,230,
The downstream axial end of 330 extends, it will be appreciated that, blade 50,150,250,350 can from tubular portion 30,130,
230, the position between upstream axial end and the downstream axial end of 330 extends outwardly.In certain embodiments, tubular portion
30, the downstream axial end of 130,230,330 can be positioned to than blade 50,150,250,350 downstream tip further
Ground is downstream.
Description to these embodiments is in order at what the purpose illustrating and describing provided above.Be not intended to limit or
Limit present disclosure.The single key element of specific embodiment or feature are generally not limited to this specific embodiment, but are being suitable for
Time be interchangeable and can be used in the selected embodiment being even not specifically shown or describing.Multiple side can also be used
It is changed by formula.Such change is not construed as being an off present disclosure, and all such changes are intended to comprise
Within the scope of present disclosure.
Claims (35)
1. an after-treatment system, including:
Exhaustor, this exhaustor receives aerofluxus from electromotor；And
Mixing tube, this mixing tube is disposed in this exhaustor and includes tubular portion and the longitudinal end from this tubular portion
The multiple blades extended, this tubular portion includes extending many through inner diameter surface and the outer diameter surface of this tubular portion
Individual opening, each blade in the plurality of blade to the downstream of this tubular portion extend and from this tubular portion radially
Extend.
2. after-treatment system as claimed in claim 1, wherein, this exhaustor includes upstream portion and relative to this upstream portion
Angularly downstream part, and wherein, each blade in these blades bends around the longitudinal axis of this Part II.
3. after-treatment system as claimed in claim 1, wherein, the plurality of blade and this tubular portion limit integral part of system
Integrally.
4. after-treatment system as claimed in claim 3, wherein, this mixing tube includes even transition, and this even transition exists
Step is not had between this tubular portion and the plurality of blade.
5. after-treatment system as claimed in claim 4, wherein, the plurality of opening is arranged to around this tubular portion circumferentially
Extend is multiple rows of, and wherein, these openings of adjacent row are in the direction of the longitudinal axis of the part being parallel to this exhaustor
On do not line up each other.
6. after-treatment system as claimed in claim 1, farther includes annular construction member, and this annular construction member is arranged in this exhaustor
Among, be located radially between the interior diameter of a part for this exhaustor and the radially end portion of the plurality of blade, this ring
Shape component supports the plurality of blade relative to this exhaustor.
7. after-treatment system as claimed in claim 1, wherein, this tubular portion includes multiple deflector, the plurality of deflector
In each deflector corresponding opening in the plurality of opening arrange.
8. after-treatment system as claimed in claim 7, wherein, these deflectors stretch out from this outer diameter surface.
9. after-treatment system as claimed in claim 1, wherein, each blade in the plurality of blade includes having L-shaped wheel
Wide far-end.
10. after-treatment system as claimed in claim 1, farther includes: reducing agent infusion appliance, and this reducing agent infusion appliance is at this
At the upstream termination of tubular portion along this exhaustor a part longitudinal axis arrange；And catalyst converter, this catalyst is by cloth
Put the downstream at this mixing tube He this reducing agent infusion appliance.
11. after-treatment systems as claimed in claim 1, wherein, this exhaustor includes upstream portion and relative to this upstream portion
Divide angled downstream part, wherein, flow into the fluid of this downstream part along multiple from this upstream portion of this exhaustor
One flowing in flow path, each flow path has a different size of radius, and wherein, in these blades
Blade is along the flow path arrangement of radius minimum.
12. 1 kinds of after-treatment systems, including:
Exhaustor, this exhaustor receives aerofluxus from electromotor；And
Mixing tube, this mixing tube is disposed in this exhaustor and includes tubular portion and the longitudinal end from this tubular portion
The multiple blades extended, this tubular portion includes extending many through inner diameter surface and the outer diameter surface of this tubular portion
Individual opening, this tubular portion and the plurality of blade limit integral part of entity.
13. after-treatment systems as claimed in claim 12, wherein, each blade in the plurality of blade includes spiral shell generally
The shape of rotation shape.
14. after-treatment systems as claimed in claim 12, wherein, each blade in the plurality of blade is to this tubular portion
Downstream extend and radially extend from this tubular portion.
15. after-treatment systems as claimed in claim 12, wherein, each blade in the plurality of blade is around this exhaustor
A part longitudinal axis bending.
16. after-treatment systems as claimed in claim 15, wherein, this mixing tube includes even transition, this even transition
Step is not had between this tubular portion and the plurality of blade.
17. after-treatment systems as claimed in claim 16, wherein, the plurality of opening is arranged to around this tubular portion circumference
It is multiple rows of that ground extends, and wherein, these openings of adjacent row are in the side of the longitudinal axis of the part being parallel to this exhaustor
Do not line up the most each other.
18. after-treatment systems as claimed in claim 17, farther include annular construction member, and this annular construction member is arranged in this aerofluxus
Among pipe, it is located radially between the interior diameter of a part for this exhaustor and the radially end portion of the plurality of blade, should
Annular construction member supports the plurality of blade relative to this exhaustor.
19. after-treatment systems as claimed in claim 12, wherein, this tubular portion includes multiple deflector, the plurality of water conservancy diversion
Each deflector in a plate corresponding opening in the plurality of opening is arranged.
20. after-treatment systems as claimed in claim 19, wherein, these deflectors stretch out from this outer diameter surface.
21. after-treatment systems as claimed in claim 12, wherein, each blade in the plurality of blade includes having L-shaped
The far-end of profile.
22. after-treatment systems as claimed in claim 12, farther include: reducing agent infusion appliance, and this reducing agent infusion appliance exists
At the upstream termination of this tubular portion along this exhaustor a part longitudinal axis arrange；And catalyst converter, this catalyst quilt
It is arranged in the downstream of this mixing tube and this reducing agent infusion appliance.
23. after-treatment systems as claimed in claim 12, wherein, this exhaustor includes upstream portion and relative to this upstream portion
Divide angled downstream part, wherein, flow into the fluid of this downstream part along multiple from this upstream portion of this exhaustor
One flowing in flow path, each flow path has a different size of radius, and wherein, in these blades
Blade is along the flow path arrangement of radius minimum.
24. 1 kinds of after-treatment systems, including:
Exhaustor, this exhaustor receives aerofluxus from electromotor；And
Mixing tube, this mixing tube is disposed in this exhaustor and includes tubular portion and from this tubular portion radially towards extension
The multiple blades stretched, this tubular portion includes multiple opening, and this mixing tube limits first exhaust flow path and second row air-flow
Dynamic path, this first exhaust flow path is through at least one in these openings, and this second exhaust flow path is at this
Tubular portion is outside and flows between these blades.
25. after-treatment systems as claimed in claim 24, wherein, this second exhaust flow path is around this tubular portion and prolongs
The annular flow path stretched.
26. after-treatment systems as claimed in claim 24, wherein, these blades are from the axial end of this tubular portion downstream
Extend.
27. after-treatment systems as claimed in claim 26, wherein, these blades each include be attached to this tubular portion
One end and spaced apart with this tubular portion and be not attached to the second end of adjacent blades.
28. after-treatment systems as claimed in claim 27, wherein, this exhaustor includes upstream portion and relative to this upstream portion
Divide angled downstream part, and wherein, each blade in these blades is curved around the longitudinal axis of this Part II
Bent.
29. after-treatment systems as claimed in claim 24, wherein, the plurality of blade and this tubular portion limit integral part of
Entity.
30. after-treatment systems as claimed in claim 29, wherein, this mixing tube includes even transition, this even transition
Step is not had between this tubular portion and the plurality of blade.
31. after-treatment systems as claimed in claim 24, wherein, the plurality of opening is arranged to around this tubular portion circumference
It is multiple rows of that ground extends, and wherein, these openings of adjacent row are in the side of the longitudinal axis of the part being parallel to this exhaustor
Do not line up the most each other.
32. after-treatment systems as claimed in claim 24, farther include annular construction member, and this annular construction member is arranged in this aerofluxus
Among pipe, it is located radially between the interior diameter of a part for this exhaustor and the radially end portion of the plurality of blade, should
Annular construction member supports the plurality of blade relative to this exhaustor.
33. after-treatment systems as claimed in claim 24, wherein, this tubular portion includes multiple deflector, the plurality of water conservancy diversion
Each deflector in a plate corresponding opening in the plurality of opening is arranged.
34. after-treatment systems as claimed in claim 33, wherein, these deflectors stretch out from this outer diameter surface.
35. after-treatment systems as claimed in claim 24, wherein, each blade in the plurality of blade includes having L-shaped
The far-end of profile.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/260,555 | 2014-04-24 | ||
| US14/260,555 US9435240B2 (en) | 2013-08-06 | 2014-04-24 | Perforated mixing pipe with swirler |
| PCT/US2015/026843 WO2015164356A1 (en) | 2014-04-24 | 2015-04-21 | Perforated mixing pipe with swirler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106232955A true CN106232955A (en) | 2016-12-14 |
| CN106232955B CN106232955B (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580020574.8A Active CN106232955B (en) | 2014-04-24 | 2015-04-21 | Perforation mixing tube with cyclone |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106232955B (en) |
| DE (1) | DE112015001958T5 (en) |
| WO (1) | WO2015164356A1 (en) |
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- 2015-04-21 DE DE112015001958.8T patent/DE112015001958T5/en active Pending
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| CN105804846B (en) * | 2016-04-11 | 2018-05-11 | 青岛立博汽车零部件精密铸造有限公司 | A kind of processing method of outlet duct member |
| CN105804846A (en) * | 2016-04-11 | 2016-07-27 | 青岛立博汽车零部件精密铸造有限公司 | Air outlet pipe part and machining method thereof |
| CN111051659B (en) * | 2017-09-29 | 2022-04-26 | 天纳克汽车经营有限公司 | Metal wire mesh mixing tube |
| CN111051659A (en) * | 2017-09-29 | 2020-04-21 | 天纳克汽车经营有限公司 | Metal wire mesh mixing tube |
| CN108131183A (en) * | 2017-12-23 | 2018-06-08 | 无锡威孚力达催化净化器有限责任公司 | Axis post-processes urea mixing device into nozzle integrated form SCR |
| CN111742123A (en) * | 2018-02-15 | 2020-10-02 | 罗伯特·博世有限公司 | Exhaust gas aftertreatment device for dosing a liquid exhaust gas aftertreatment agent |
| US11891937B2 (en) | 2018-07-03 | 2024-02-06 | Cummins Emission Solutions Inc. | Body mixing decomposition reactor |
| CN112399863A (en) * | 2018-07-05 | 2021-02-23 | 费森尤斯医疗保健控股公司 | Flexible container system and spout and related methods |
| CN112739451A (en) * | 2018-09-20 | 2021-04-30 | 诺拉姆国际公司 | Fluid mixing device |
| CN111603936A (en) * | 2019-02-25 | 2020-09-01 | 康明斯排放处理公司 | System and method for mixing exhaust gas and reductant |
| CN111603936B (en) * | 2019-02-25 | 2022-07-26 | 康明斯排放处理公司 | System and method for mixing exhaust gas and reducing agent |
| CN110026101A (en) * | 2019-04-12 | 2019-07-19 | 无锡威孚力达催化净化器有限责任公司 | A kind of hydrogen cell automobile exhaust mixing arrangement |
| CN110026101B (en) * | 2019-04-12 | 2021-06-11 | 无锡威孚力达催化净化器有限责任公司 | Hydrogen fuel cell automobile exhaust mixing device |
| CN113107650A (en) * | 2020-01-09 | 2021-07-13 | 广西大学 | Dynamic mixer for diesel engine urea-SCR system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015164356A1 (en) | 2015-10-29 |
| CN106232955B (en) | 2019-11-05 |
| DE112015001958T5 (en) | 2017-01-26 |
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