CN106523092A - Two-blade conical surface type cyclone urea mixing device - Google Patents
Two-blade conical surface type cyclone urea mixing device Download PDFInfo
- Publication number
- CN106523092A CN106523092A CN201610926297.3A CN201610926297A CN106523092A CN 106523092 A CN106523092 A CN 106523092A CN 201610926297 A CN201610926297 A CN 201610926297A CN 106523092 A CN106523092 A CN 106523092A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cyclone pipe
- partition
- barrel body
- insulation layer
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- 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
- F01N2610/08—Adding substances to exhaust gases with prior mixing of the substances with a gas, e.g. air
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention belongs to the technical field of diesel engine tail gas treatment system equipment, and relates to a two-blade conical surface type cyclone urea mixing device which comprises a barrel body; a cyclone pipe is fixedly arranged in an inner cavity of the barrel body; the axis of the cyclone pipe is mutually perpendicular to that of the barrel body; the two ends, in the axial direction of the barrel body, of the cyclone pipe are fixedly equipped with a first partition and a second partition separately; the first partition, the second partition and the cyclone pipe are used for dividing the barrel body into a gas inlet cavity and a gas outlet cavity; the two ends of each of the first partition and the second partition are separately arched in a circular-arc mode towards the two ends of the barrel body; one end of the cyclone pipe is in contact with the inner wall of the barrel body, and the other end of the cyclone pipe is equipped with a jetting base; a urea spray nozzle is arranged on the jetting base; a thermal-insulation layer covers the surface of the barrel body; and a notch is formed in a position, which corresponds to the jetting base, of the thermal-insulation layer. The mixing device can effectively solve the problems that in an existing SCR tail gas treatment process, a mixing path for ammonia gas and tail gas is relatively short, and tail gas treatment is affected by insufficient mixing.
Description
Technical field
The invention belongs to tail gas treatment system of diesel engine equipment technical field, is related to a kind of conical surface type eddy flow carbamide of page two and mixes
Attach together and put.
Background technology
Increasingly strict with diesel engine emissions regulations, exhaust aftertreatment technology is the technical measures that must be adopted.And SCR
State IV, V and VI discharge standard of state are disclosure satisfy that, the ultimate principle of SCR is by urea injection system（It is commonly called as urea pump）Will
32.5% concentration aqueous solution of urea atomization after spray into exhaustor in mix with motor exhaust, aqueous solution of urea through pyrolysis with
Hydrolysis generate ammonia（NH3）, in the presence of catalyst, ammonia is by the oxynitride being harmful in diesel engine vent gas（NOx）
It is converted into harmless nitrogen (N2) and water, the top priority of motor exhaust treatment technology SCR routes is tail gas is had with ammonia mist
The biochemical reaction of effect hybrid concurrency, while ensureing sufficient temp before into catalyst.
The content of the invention
The present invention is directed to the problems referred to above, there is provided a kind of conical surface type eddy flow urea mixing devices of page two, the mixing arrangement can have
During the existing SCR process tail gas of effect solution, ammonia and tail gas mixed path are shorter, and undercompounding affects asking for vent gas treatment
Topic.
According to technical scheme：A kind of conical surface type eddy flow urea mixing devices of page two, it is characterised in that：Including cylinder
Body, cylinder lumen fix cyclone pipe, and the axis of cyclone pipe is mutually perpendicular to the axis of cylinder, cylinder, and cyclone pipe is along cylinder axial direction
Two ends fix the first dividing plate, second partition respectively, and cylinder is divided into inlet chamber by first dividing plate, second partition and cyclone pipe
Body, outlet cavity, both first dividing plate and second partition are respectively facing cylinder two ends and arch upward in arc-shaped, cyclone pipe one end
Contact with cylinder inboard wall, the other end installs injection base, injection base is provided with urea nozzle, and drum surface is coated with insulation
Layer, is provided with breach corresponding to injection base position on heat-insulation layer.
As a further improvement on the present invention, first dividing plate, second partition are connected with the middle part of cyclone pipe.
As a further improvement on the present invention, the tube surfaces that the cyclone pipe is placed in air inlet cavity are uniformly arranged leaf
Piece, is provided with strip crevice between adjacent two panels blade, the tube surfaces that cyclone pipe is placed in outlet cavity are laid with some circles
Hole.
As a further improvement on the present invention, heat-insulation layer two ends distinguish banding in two end surfaces of cylinder, in the middle part of heat-insulation layer with
Space is formed between drum surface.
The method have technical effect that：Present configuration is simple, compact to design, easy to use, cyclone pipe and dividing plate
The loop of gas in cavity is divided into swirl shape increase the mixing of ammonia mist by setting, flows through mixed gas every in cavity
Individual corner, and the ammonia that urea nozzle is ejected is uniform to surrounding diverging with through cyclone pipe back segment hole, makes tail gas and ammonia
Mixing more fully, is conducive to the process of tail gas.
Description of the drawings
Fig. 1 is the axially arranged structural representation in outlet face of the present invention.
Fig. 2 is the axially arranged structural representation of air inlet face of the present invention.
Fig. 3 is the internal structure schematic diagram of the present invention.
Fig. 4 is the internal structure schematic diagram of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is further described.
In Fig. 1 ~ 4, including cylinder 1, injection base 2, heat-insulation layer 3, the first dividing plate 4, cyclone pipe 5, second partition 6, air inlet
Cavity 7, outlet cavity 8 etc..
As shown in Fig. 1 ~ 4, the present invention is a kind of conical surface type eddy flow urea mixing devices of page two, including cylinder 1, in cylinder 1
Cyclone pipe 5 is fixed in chamber, and axis and the axis of cylinder 1 of cyclone pipe 5 are mutually perpendicular to, cylinder 1, and cyclone pipe 5 is along 1 axial two ends of cylinder
Fix the first dividing plate 4, second partition 6 respectively, first dividing plate 4, second partition 6 and cyclone pipe 5 by cylinder 1 point be inlet chamber
Body 7, outlet cavity 8, both first dividing plate 4 and second partition 6 are respectively facing 1 two ends of cylinder and arch upward in arc-shaped, eddy flow
5 one end of pipe is contacted with 1 inwall of cylinder, and the other end installs injection base 2, and injection base 2 is provided with urea nozzle, 1 surface of cylinder
Heat-insulation layer 3 is coated with, on heat-insulation layer 3, be provided with breach at base 2 corresponding to spraying.
First dividing plate 4, second partition 6 are connected with the middle part of cyclone pipe 5.
The tube surfaces that cyclone pipe 5 is placed in air inlet cavity 7 are uniformly arranged blade, are provided with bar shaped between adjacent two panels blade
Gap, the tube surfaces that cyclone pipe 5 is placed in outlet cavity 8 are laid with some circular holes.
Banding is distinguished in 1 liang of end surfaces of cylinder in 3 two ends of heat-insulation layer, forms empty in the middle part of heat-insulation layer 3 and 1 surface of cylinder between
Gap.
The course of work of the present invention is as follows：The inlet end of cylinder 1 is connected with the tail gas of automobile engine（Flange can be used
Connection, directly reducer pipe connection, welding or direct extending cavity）, it is also possible to connect with other exhaust gas processing devices（Method can be used
Blue connection, directly reducer pipe connection, welding or direct extending cavity）.The tail gas of automobile engine enters inlet chamber by inlet end
In body 7,5 front end of cyclone pipe being entered back into, swirling air-flow being formed through 5 front end blade of cyclone pipe, carbamide is by spraying on base 2
The axis direction of the parallel cyclone pipe of urea nozzle is sprayed into, and carbamide is broken up by swirl shape air-flow, while carbamide is volatilized at high temperature
Ammonia, ammonia are sufficiently mixed with vehicle exhaust, are dissipated to 8 surrounding of outlet cavity through 5 back segment honeycomb hole of cyclone pipe.In outlet chamber
In body 8, the mixed airflow of diverging is flowed out through the parallel airflow that second partition 6 becomes to be distributed in cavity cross-section.Mixing after outflow
Gas is catalyzed into SCR catalyst.Location arrangements temperature and pressure sensor can be selected in chamber outer wall, this amphitypy is passed
Sensor can more accurately control the catalytic treatment of tail gas.Whole urea mixing device is applied to various cartridge types, box SCR
Type exhaust aftertreatment product, the invention overall structure size are little, select appropriate amplification and diminution also dependent on extraction flow,
It is a kind of economic, efficient, urea mixing device of strong applicability.
Claims (4)
1. a kind of conical surface type eddy flow urea mixing devices of page two, it is characterised in that：Including cylinder（1）, cylinder（1）Inner chamber fixes rotation
Flow tube（5）, cyclone pipe（5）Axis and cylinder（1）Axis be mutually perpendicular to, cylinder（1）, cyclone pipe（5）Along cylinder（1）Axially
The first dividing plate is fixed at two ends respectively（4）, second partition（6）, first dividing plate（4）, second partition（6）And cyclone pipe（5）Will
Cylinder（1）It is divided into air inlet cavity（7）, outlet cavity（8）, first dividing plate（4）And second partition（6）Both are respectively facing cylinder
Body（1）Two ends are arched upward in arc-shaped, cyclone pipe（5）One end and cylinder（1）Inwall is contacted, and the other end installs injection base（2）, spray
Penetrate base（2）It is provided with urea nozzle, cylinder（1）Surface coating has heat-insulation layer（3）, heat-insulation layer（3）On corresponding to injection base
（2）Place is provided with breach.
2. the conical surface type of page two eddy flow urea mixing device as claimed in claim 1, it is characterised in that：First dividing plate（4）、
Second partition（6）With cyclone pipe（5）Middle part is connected.
3. the conical surface type of page two eddy flow urea mixing device as claimed in claim 1, it is characterised in that：The cyclone pipe（5）Put
In air inlet cavity（7）In tube surfaces be uniformly arranged blade, be provided with strip crevice, cyclone pipe between adjacent two panels blade（5）
It is placed in outlet cavity（8）In tube surfaces be laid with some circular holes.
4. the conical surface type of page two eddy flow urea mixing device as claimed in claim 1, it is characterised in that：Heat-insulation layer（3）Two ends point
Other banding is in cylinder（1）Two end surfaces, heat-insulation layer（3）Middle part and cylinder（1）Space is formed between surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610926297.3A CN106523092B (en) | 2016-10-24 | 2016-10-24 | The conical surface type eddy flow urea mixing devices of page two |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610926297.3A CN106523092B (en) | 2016-10-24 | 2016-10-24 | The conical surface type eddy flow urea mixing devices of page two |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106523092A true CN106523092A (en) | 2017-03-22 |
| CN106523092B CN106523092B (en) | 2019-04-23 |
Family
ID=58291716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610926297.3A Active CN106523092B (en) | 2016-10-24 | 2016-10-24 | The conical surface type eddy flow urea mixing devices of page two |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106523092B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2018228085A1 (en) * | 2017-06-14 | 2018-12-20 | 天纳克（苏州）排放***有限公司 | Engine exhaust post-processing mixing device, and post-processing device and application thereof |
| WO2019019721A1 (en) * | 2017-07-27 | 2019-01-31 | 天纳克（苏州）排放***有限公司 | Engine exhaust after-treatment mixing device, after-treatment device comprising same, and application thereof |
| CN109488426A (en) * | 2019-01-28 | 2019-03-19 | 凯龙高科技股份有限公司 | A kind of Double layer spiral flow vane type urea injection mixed cell |
| CN109826697A (en) * | 2019-03-26 | 2019-05-31 | 平原滤清器有限公司 | Swirl-flow devices are used in diesel emission post-processing |
| WO2019140866A1 (en) * | 2018-01-19 | 2019-07-25 | 天纳克（苏州）排放***有限公司 | Box-type engine exhaust post-treatment device |
| CN110439658A (en) * | 2019-08-12 | 2019-11-12 | 郑州精益达环保科技有限公司 | A kind of six front end SCR urea mixed structure of state |
| US11193412B2 (en) | 2019-09-30 | 2021-12-07 | Faurecia Emissions Control Technologies, Usa, Llc | Automotive exhaust aftertreatment system |
| CN114263518A (en) * | 2022-01-28 | 2022-04-01 | 无锡威孚力达催化净化器有限责任公司 | Dispersion crushing and arc plate diversion type urea mixer |
| CN114458428A (en) * | 2022-01-05 | 2022-05-10 | 潍柴动力股份有限公司 | SCR mixer and engine |
| CN114522537A (en) * | 2020-11-23 | 2022-05-24 | 佛吉亚排放控制技术美国有限公司 | Flow diverter for high efficiency mixer |
| US20220162974A1 (en) * | 2020-11-23 | 2022-05-26 | Faurecia Emissions Control Technologies, Usa, Llc | Inlet flow for high efficiency mixers |
| US11585255B2 (en) * | 2020-11-23 | 2023-02-21 | Faurecia Emissions Control Technologies, Usa, Llc | Crowned inlet baffle for high efficiency mixer |
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| CN205605279U (en) * | 2016-04-12 | 2016-09-28 | 天纳克（苏州）排放***有限公司 | Hybrid module |
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| KR20140024082A (en) * | 2012-08-17 | 2014-02-28 | 세종공업 주식회사 | Mixing module for post treatment exhaust contamination gas decreasing system in diesel engine |
| CN204312165U (en) * | 2014-12-19 | 2015-05-06 | 天纳克（苏州）排放***有限公司 | Engine exhaust after-treatment system |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018228085A1 (en) * | 2017-06-14 | 2018-12-20 | 天纳克（苏州）排放***有限公司 | Engine exhaust post-processing mixing device, and post-processing device and application thereof |
| WO2019019721A1 (en) * | 2017-07-27 | 2019-01-31 | 天纳克（苏州）排放***有限公司 | Engine exhaust after-treatment mixing device, after-treatment device comprising same, and application thereof |
| WO2019140866A1 (en) * | 2018-01-19 | 2019-07-25 | 天纳克（苏州）排放***有限公司 | Box-type engine exhaust post-treatment device |
| 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 |
| CN109488426A (en) * | 2019-01-28 | 2019-03-19 | 凯龙高科技股份有限公司 | A kind of Double layer spiral flow vane type urea injection mixed cell |
| CN109488426B (en) * | 2019-01-28 | 2023-10-03 | 凯龙高科技股份有限公司 | Double-layer rotational flow vane type urea injection mixing unit |
| CN109826697A (en) * | 2019-03-26 | 2019-05-31 | 平原滤清器有限公司 | Swirl-flow devices are used in diesel emission post-processing |
| CN109826697B (en) * | 2019-03-26 | 2024-01-19 | 平原滤清器有限公司 | Swirl device for diesel engine emission aftertreatment |
| CN110439658A (en) * | 2019-08-12 | 2019-11-12 | 郑州精益达环保科技有限公司 | A kind of six front end SCR urea mixed structure of state |
| US11193412B2 (en) | 2019-09-30 | 2021-12-07 | Faurecia Emissions Control Technologies, Usa, Llc | Automotive exhaust aftertreatment system |
| US20220162976A1 (en) * | 2020-11-23 | 2022-05-26 | Faurecia Emissions Control Technologies, Usa, Llc | Flow diverter for high efficiency mixer |
| US20220162974A1 (en) * | 2020-11-23 | 2022-05-26 | Faurecia Emissions Control Technologies, Usa, Llc | Inlet flow for high efficiency mixers |
| CN114522537A (en) * | 2020-11-23 | 2022-05-24 | 佛吉亚排放控制技术美国有限公司 | Flow diverter for high efficiency mixer |
| US11585255B2 (en) * | 2020-11-23 | 2023-02-21 | Faurecia Emissions Control Technologies, Usa, Llc | Crowned inlet baffle for high efficiency mixer |
| US11680507B2 (en) * | 2020-11-23 | 2023-06-20 | Faurecia Emissions Control Technologies, Usa, Llc | Inlet flow for high efficiency mixers |
| US11788454B2 (en) * | 2020-11-23 | 2023-10-17 | Faurecia Emissions Control Technologies, Usa, Llc | Flow diverter for high efficiency mixer |
| CN114458428A (en) * | 2022-01-05 | 2022-05-10 | 潍柴动力股份有限公司 | SCR mixer and engine |
| CN114263518A (en) * | 2022-01-28 | 2022-04-01 | 无锡威孚力达催化净化器有限责任公司 | Dispersion crushing and arc plate diversion type urea mixer |
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