CN110359989A - A kind of performance chamber mixer for diesel engine vent gas processing - Google Patents
A kind of performance chamber mixer for diesel engine vent gas processing Download PDFInfo
- Publication number
- CN110359989A CN110359989A CN201910791333.3A CN201910791333A CN110359989A CN 110359989 A CN110359989 A CN 110359989A CN 201910791333 A CN201910791333 A CN 201910791333A CN 110359989 A CN110359989 A CN 110359989A
- Authority
- CN
- China
- Prior art keywords
- pipe
- cyclone pipe
- internal layer
- hole
- diesel engine
- 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.)
- Pending
Links
- 238000012545 processing Methods 0.000 title claims abstract description 15
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004202 carbamide Substances 0.000 claims abstract description 14
- 238000009423 ventilation Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 239000002937 thermal insulation foam Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract description 5
- 230000008021 deposition Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000012805 post-processing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
-
- 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
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a kind of performance chamber mixers for diesel engine vent gas processing, it includes cyclone pipe and internal layer hole pipe, internal layer hole pipe is set in cyclone pipe, one end of cyclone pipe and internal layer hole pipe is connected on nozzle carrier, nozzle for spraying urea liquid is installed on nozzle carrier, one end on cyclone pipe close to nozzle carrier offers a circle whirl hole, swirl vane is provided in whirl hole, several ventilation circular holes are evenly equipped on the pipe of internal layer hole, the aperture of the ventilation circular hole of corresponding swirl vane position is greater than the aperture of other positions ventilation circular hole, heat preservation component is provided with outside cyclone pipe.Above-mentioned performance chamber mixer optimizes the opening diameter of internal layer hole pipe, improves charge flow rate, enhances the mixing crushing effect of urea and exhaust gas；The heat loss that mixer can be effectively reduced in heat preservation component is added outside cyclone pipe simultaneously, so that urea is not easy to form crystal deposition in mixer, while the transformation efficiency of catalyst converter can be improved.
Description
Technical field
The invention belongs to diesel engine vent gas post-processing technologies, more particularly, to a kind of for the box of diesel engine vent gas processing
Mixer.
Background technique
Refer to installation for selective catalytic conversion system of diesel engine SCR (Selective Catalyst Reduction)
In diesel engine automobile air exhausting system, the NOx in diesel emission is catalysed and reduced into N2And O2Catalytic reduction device, selection urine
Plain aqueous solution is as reducing agent.Aqueous solution of urea is ejected into the exhaust pipe of catalyst upstream, in the work of exhaust gas temperature and air-flow
CO is produced as with lower hydrolysis2And NOx is reduced into free of contamination nitrogen and water as reducing agent by ammonia, ammonia.
Mixer is the essential important component of SCR system, is used for NH3With the mixing of exhaust gas, and the pass of SCR system
Key technology is NH3With the mixing uniformity of exhaust gas, currently, it is existing for diesel engine vent gas post-processing mixer flow into
The exhaust gas flow of layer hole pipe is insufficient, inadequate to the mixing and breaking strength of exhaust gas and urea admixture, while mixer is not protected
Warm measure heat loss is larger, and internal layer hole is caused to manage upper urea crystals easy to form.
Summary of the invention
The purpose of the present invention is to provide a kind of performance chamber mixers for diesel engine vent gas processing, to solve the prior art
Mixer for diesel engine vent gas post-processing has that internal layer hole Guan Shangyi forms urea crystals.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of performance chamber mixer for diesel engine vent gas processing comprising cyclone pipe and internal layer hole pipe, the internal layer hole
Pipe is set in the cyclone pipe, and one end of the cyclone pipe and internal layer hole pipe is connected on nozzle carrier, is pacified on the nozzle carrier
Equipped with the nozzle for spraying urea liquid, one end on the cyclone pipe close to nozzle carrier offers a circle whirl hole, described
Swirl vane is provided in whirl hole, wherein several ventilation circular holes, the corresponding eddy flow leaf are evenly equipped on the pipe of the internal layer hole
The aperture of the ventilation circular hole of piece position is greater than the aperture of other positions ventilation circular hole, is provided with heat preservation component outside the cyclone pipe.
Particularly, the heat preservation component includes the heat shield being set to except the cyclone pipe, filling in the heat shield
There is heat insulation foam.
Particularly, air scoop, filling in the air scoop are provided with except one end of the cyclone pipe setting swirl vane
There is heat insulation foam.
Particularly, the air scoop includes flat segments and conical section, and the flat segments are located at the outside of conical section, and described
There is interval, the conical section extends to the direction close to cyclone pipe between flat segments and the cyclone pipe.
Particularly, several connecting plates are set on the one end extended in the internal layer Kong Guanxiang cyclone pipe, pass through connecting plate
The end is fixed in cyclone pipe.
Beneficial effects of the present invention are that the performance chamber mixer for diesel engine vent gas processing is excellent compared with prior art
The opening diameter for having changed internal layer hole pipe, improves charge flow rate, enhances the mixing crushing effect of urea and exhaust gas；Simultaneously
The heat loss that mixer can be effectively reduced in heat preservation component is added outside cyclone pipe, so that urea is not easy to form crystal in mixer
Deposition, while the transformation efficiency of catalyst converter can be improved.
Detailed description of the invention
Fig. 1 is the structural representation for the performance chamber mixer for diesel engine vent gas processing that the specific embodiment of the invention provides
Figure.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is makes to the more thorough of the disclosure understanding
Comprehensively.It should be noted that be referred to as " being fixed on " another component when component, it can directly on the other part or
There may also be components placed in the middle.When a component is considered as " connection " another component, it can be directly to separately
One component may be simultaneously present component placed in the middle.Term as used herein "vertical", "horizontal", "left" and "right"
And similar statement is for illustrative purposes only, is not meant to be the only embodiment.Unless otherwise defined, this paper institute
All technical and scientific terms used have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Term as used herein in the specification of the present invention, which is only for the purpose of describing specific embodiments, to be not intended to
The limitation present invention.Term " and or " used herein includes the arbitrary and all of one or more relevant listed items
Combination.
Refering to Figure 1, Fig. 1 is that the box of diesel engine vent gas processing that be used for that the specific embodiment of the invention provides is mixed
The structural schematic diagram of clutch.
In the present embodiment, a kind of performance chamber mixer for diesel engine vent gas processing includes cyclone pipe 1 and internal layer hole pipe 2,
Internal layer hole pipe 2 is set in cyclone pipe 1, and one end of cyclone pipe 1 and internal layer hole pipe 2 is connected on nozzle carrier 3, is pacified on nozzle carrier 3
Equipped with the nozzle 4 for spraying urea liquid, several connecting plates are set on one end that internal layer hole pipe 2 extends into cyclone pipe 1
5, the end is fixed in cyclone pipe 2 by connecting plate 5, one end on cyclone pipe 2 close to nozzle carrier 3 offers a circle eddy flow
Hole is provided with swirl vane 6 in whirl hole, several ventilation circular holes 7, corresponding 6 position of swirl vane are evenly equipped on internal layer hole pipe 2
The aperture of ventilation circular hole 7 be greater than the aperture of other positions ventilation circular hole 7, improve charge flow rate, make the mixed of urea and exhaust gas
Closing crushing effect is enhanced.
It is provided with heat shield 8 outside cyclone pipe 1, heat insulation foam 9 is filled in heat shield 8, swirl vane is arranged in cyclone pipe 1
It is provided with air scoop 10 except 6 one end, heat insulation foam 9 is filled in air scoop 10, air scoop 10 includes flat segments 11 and taper
Section 12, flat segments 11 are located at the outside of conical section 12, and have between flat segments 11 and cyclone pipe 1 and be spaced, and conical section 12 is to leaning on
The direction of nearly cyclone pipe 1 extends.Mixer can be effectively reduced by the insulation construction that air scoop 10, heat shield 8 and heat insulation foam 9 are constituted
Heat loss while the transformation efficiency of catalyst converter can be improved so that urea is not easy to form crystal deposition in mixer.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (5)
1. a kind of performance chamber mixer for diesel engine vent gas processing comprising cyclone pipe and internal layer hole pipe, the internal layer hole pipe
It is set in the cyclone pipe, one end of the cyclone pipe and internal layer hole pipe is connected on nozzle carrier, is installed on the nozzle carrier
There is the nozzle for spraying urea liquid, one end of close nozzle carrier offers a circle whirl hole, the rotation on the cyclone pipe
Swirl vane is provided on discharge orifice, which is characterized in that several ventilation circular holes, the corresponding rotation are evenly equipped on the pipe of the internal layer hole
The aperture for flowing the ventilation circular hole of leaf position is greater than the aperture of other positions ventilation circular hole, is provided with insulation portion outside the cyclone pipe
Part.
2. the performance chamber mixer according to claim 1 for diesel engine vent gas processing, which is characterized in that the insulation portion
Part includes the heat shield being set to except the cyclone pipe, is filled with heat insulation foam in the heat shield.
3. the performance chamber mixer according to claim 2 for diesel engine vent gas processing, which is characterized in that the cyclone pipe
It is arranged except one end of swirl vane and is provided with air scoop, heat insulation foam is filled in the air scoop.
4. the performance chamber mixer according to claim 3 for diesel engine vent gas processing, which is characterized in that the air scoop
Including flat segments and conical section, the flat segments are located at the outside of conical section, and have between the flat segments and the cyclone pipe
There is interval, the conical section extends to the direction close to cyclone pipe.
5. the performance chamber mixer according to claim 1 for diesel engine vent gas processing, which is characterized in that the internal layer hole
Several connecting plates are set on one end that pipe extends into cyclone pipe, the end is fixed in cyclone pipe by connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910791333.3A CN110359989A (en) | 2019-08-26 | 2019-08-26 | A kind of performance chamber mixer for diesel engine vent gas processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910791333.3A CN110359989A (en) | 2019-08-26 | 2019-08-26 | A kind of performance chamber mixer for diesel engine vent gas processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110359989A true CN110359989A (en) | 2019-10-22 |
Family
ID=68224337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910791333.3A Pending CN110359989A (en) | 2019-08-26 | 2019-08-26 | A kind of performance chamber mixer for diesel engine vent gas processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110359989A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677580A (en) * | 2020-06-15 | 2020-09-18 | 无锡威孚力达催化净化器有限责任公司 | Box type national six mixer structure |
| CN113027573A (en) * | 2021-02-08 | 2021-06-25 | 凯龙高科技股份有限公司 | Wall flow vortex mixer |
| WO2021189796A1 (en) * | 2020-03-24 | 2021-09-30 | 天纳克（苏州）排放系统有限公司 | Mixing pipe assembly and tail gas aftertreatment device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150258A (en) * | 2017-12-26 | 2018-06-12 | 潍柴动力股份有限公司 | SCR system urea mixer and SCR system |
| CN108194179A (en) * | 2018-03-14 | 2018-06-22 | 潍柴动力股份有限公司 | A kind of post processing air inlet mixing arrangement |
| CN208203387U (en) * | 2018-04-13 | 2018-12-07 | 无锡威孚力达催化净化器有限责任公司 | A kind of post-processing assembly mixing arrangement |
| CN109653849A (en) * | 2019-01-28 | 2019-04-19 | 凯龙高科技股份有限公司 | A kind of urea injection bimetallic tube mixer for diesel engine vent gas post-processing |
| CN210714817U (en) * | 2019-08-26 | 2020-06-09 | 凯龙高科技股份有限公司 | Box type mixer for diesel engine tail gas treatment |
-
2019
- 2019-08-26 CN CN201910791333.3A patent/CN110359989A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150258A (en) * | 2017-12-26 | 2018-06-12 | 潍柴动力股份有限公司 | SCR system urea mixer and SCR system |
| CN108194179A (en) * | 2018-03-14 | 2018-06-22 | 潍柴动力股份有限公司 | A kind of post processing air inlet mixing arrangement |
| CN208203387U (en) * | 2018-04-13 | 2018-12-07 | 无锡威孚力达催化净化器有限责任公司 | A kind of post-processing assembly mixing arrangement |
| CN109653849A (en) * | 2019-01-28 | 2019-04-19 | 凯龙高科技股份有限公司 | A kind of urea injection bimetallic tube mixer for diesel engine vent gas post-processing |
| CN210714817U (en) * | 2019-08-26 | 2020-06-09 | 凯龙高科技股份有限公司 | Box type mixer for diesel engine tail gas treatment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021189796A1 (en) * | 2020-03-24 | 2021-09-30 | 天纳克（苏州）排放系统有限公司 | Mixing pipe assembly and tail gas aftertreatment device |
| CN111677580A (en) * | 2020-06-15 | 2020-09-18 | 无锡威孚力达催化净化器有限责任公司 | Box type national six mixer structure |
| CN113027573A (en) * | 2021-02-08 | 2021-06-25 | 凯龙高科技股份有限公司 | Wall flow vortex mixer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110359989A (en) | A kind of performance chamber mixer for diesel engine vent gas processing | |
| US9587543B2 (en) | Apparatus for the aftertreatment of the exhaust gases of diesel engines | |
| CN207905898U (en) | A kind of mixing arrangement that rotating flow guidance is combined with mesh | |
| CN202391522U (en) | SCR (selective catalytic reduction) catalytic conversion muffler | |
| CN106523092A (en) | Two-blade conical surface type cyclone urea mixing device | |
| CN106640301A (en) | Tail gas post-treatment device | |
| CN109653849A (en) | A kind of urea injection bimetallic tube mixer for diesel engine vent gas post-processing | |
| CN206487537U (en) | Tail-gas after treatment apparatus | |
| CN209413969U (en) | A kind of urea liquid bimetallic tube mixer for SCR system | |
| CN108119211A (en) | A kind of close-coupled mixing arrangement for meeting six discharge standard of Europe | |
| CN113586212A (en) | Mixing device with multi-cyclone structure | |
| WO2019019724A1 (en) | Engine exhaust after-treatment package and application thereof | |
| CN205618236U (en) | Air exhaust treatment device | |
| CN107559078A (en) | Tail-gas after treatment apparatus | |
| CN105275554A (en) | SCR post-treatment device with exhaust mixer | |
| CN105569787A (en) | Urea nozzle integrated SCR (Selective Catalytic Reduction) catalytic converter | |
| CN109505686A (en) | A kind of urea injection mixed cell for diesel engine vent gas post-processing | |
| CN102410069A (en) | SCR (Selective Catalytic Reduction) catalytic conversion muffler | |
| CN106194347B (en) | A kind of swirl vane formula urea injection mixed cell | |
| CN204003038U (en) | A kind of suction tude of SCR exhaust treatment system, SCR exhaust treatment system | |
| CN202028346U (en) | Static mixer for urea selective catalytic reduction device of diesel engine | |
| CN207526559U (en) | Tail-gas after treatment apparatus | |
| CN210714817U (en) | Box type mixer for diesel engine tail gas treatment | |
| CN206016913U (en) | A kind of swirl vane formula carbamide sprays mixed cell | |
| WO2023138342A1 (en) | Scr system and engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |