CN108150255A - Vehicle tail gas processing treatment fluid mixing arrangement - Google Patents
Vehicle tail gas processing treatment fluid mixing arrangement Download PDFInfo
- Publication number
- CN108150255A CN108150255A CN201711410535.6A CN201711410535A CN108150255A CN 108150255 A CN108150255 A CN 108150255A CN 201711410535 A CN201711410535 A CN 201711410535A CN 108150255 A CN108150255 A CN 108150255A
- Authority
- CN
- China
- Prior art keywords
- cavity
- treatment fluid
- tail gas
- cyclone pipe
- mixing arrangement
- 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
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
- F01N3/24—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
- 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
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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 present invention provides a kind of vehicle tail gas processing treatment fluid mixing arrangement, mainly thes improvement is that, including the first cavity, the first cavity side is equipped with the second cavity；One end closing of first cavity, another end opening is as gas outlet；Second cavity is equipped with air inlet pipe and treatment fluid import；The cyclone pipe of registration process liquid import is equipped in second cavity；The cyclone pipe is provided with whirlpool generation blade around axis；Whirlpool generation blade is located on cyclone pipe close to one section for the treatment of fluid import, and another section on cyclone pipe away from treatment fluid import is porous section；Porous section of part on cyclone pipe is stretched into the first cavity；In the first cavity, flow-disturbing partition board is equipped with after the second cavity.The present invention can increase the mixed effect of ammonia mist so that ammonia and tail gas mixing are more abundant.
Description
Technical field
The present invention relates to a kind of vehicle tail gas processing urea mixing devices, belong to tail gas treatment system of diesel engine equipment skill
Art field.
Background technology
Increasingly strict with diesel engine emissions regulations, exhaust aftertreatment technology is the technical measures that must be used.And SCR
It disclosure satisfy that state IV, V and VI discharge standard of state, the basic principle of SCR are to pass through urea injection system（It is commonly called as urea pump）It will
32.5% concentration aqueous solution of urea atomization after spray into exhaust pipe in mix with motor exhaust, aqueous solution of urea by pyrolysis with
Hydrolysis generates ammonia（NH3）, ammonia will be harmful in diesel engine vent gas under the effect of the catalyst oxynitrides（NOx）
It is converted into harmless nitrogen (N2) and water, the top priority of motor exhaust treatment technology SCR routes is that tail gas is made to have with ammonia mist
The biochemical reaction of hybrid concurrency is imitated, while ensures sufficient temp before catalyst is entered.
Invention content
The purpose of the present invention is to solve existing SCR handle tail gas during ammonia and tail gas mixed path it is shorter, mix
The problem of closing insufficient influence vent gas treatment, provide it is a kind of simple in structure, it is compact to design to increase ammonia and tail gas mixes
It is combined the vehicle tail gas processing treatment fluid mixing arrangement of diameter.The technical solution adopted by the present invention is：
A kind of vehicle tail gas processing treatment fluid mixing arrangement, mainly thes improvement is that, including the first cavity, described first
Cavity side is equipped with the second cavity；One end closing of first cavity, another end opening is as gas outlet；
Second cavity is equipped with air inlet pipe and treatment fluid import；The cyclone pipe of registration process liquid import is equipped in second cavity；Institute
It states cyclone pipe and axis is provided with whirlpool generation blade；Whirlpool generation blade is located on cyclone pipe close to treatment fluid import one
Section, another section on cyclone pipe away from treatment fluid import is porous section；Porous section of part on cyclone pipe is stretched into the first cavity；
In the first cavity, flow-disturbing partition board is equipped with after the second cavity.
Further, air inlet pipe is vertical with cyclone pipe axis, and opposite with whirlpool generation blade.
Further, the stomata on porous section of cyclone pipe is uniformly distributed on 360 degree of circumferential surfaces.
Further, it is identical with eddy flow tube axis direction by the treatment fluid that treatment fluid import is injected into.
Further, the second cavity is connected to the first cavity and is biased to blind end side.
Further, cyclone pipe is connect close to one end for the treatment of fluid import with horn-like deflector.
Further, the first cavity is equipped with temperature sensor and/or pressure sensor.
Further, the first cavity uses circular cylindrical cavity.
Further, the second cavity uses U-shaped cavity body, and U-shaped cavity body includes the U-shaped cavity end cap being connected and U-shaped cylinder；It is U-shaped
Chamber end cap is equipped with urea nozzle mounting base, and treatment fluid import is set among urea nozzle mounting base.
Advantages of the present invention：The configuration of the present invention is simple, compact to design, easy to use, the setting of U-shaped cavity body provides ammonia mist
Blending space, the setting of cyclone pipe can increase the mixed effect of ammonia mist, mixed gas after U-shaped cavity body by cyclone pipe after
Sector hole gap dissipates uniformly around, and the flow-disturbing effect for passing through cyclone pipe makes tail gas fully be spread with ammonia, is conducive to tail gas
Processing.
Description of the drawings
Fig. 1 is the appearance schematic diagram of the present invention.
Fig. 2 is the positive cutting structure diagram of the present invention.
Fig. 3 is the axis side cutting structure diagram of the present invention.
Specific embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in Figure 1, vehicle tail gas processing treatment fluid mixing arrangement provided by the invention, including：Round end cap 1, circle
Shape cylinder 2, urea nozzle mounting base 3, U-shaped cavity end cap 4, air inlet pipe 5, flow-disturbing partition board 6, cyclone pipe 7, deflector 8, U-shaped cylinder 9；
U-shaped cavity end cap 4 connect composition U-shaped cavity body with U-shaped cylinder 9；Circular cylinder body 2 connect composition circular cylindrical cavity with round end cap 1,
U-shaped cavity body is embedded in circular cylindrical cavity, and is biased to blind end side positioned at circular cylindrical cavity；Circular cylindrical cavity one end is closed, another
End opening is as gas outlet；
U-shaped cavity body be equipped with air inlet pipe 5 and with treatment fluid import 301；Urea nozzle mounting base 3 is set on U-shaped cavity end cap 4, urea
The centre of nozzle mounting base 3 is equipped with treatment fluid import 301；Cyclone pipe 7 is equipped in U-shaped cavity body, cyclone pipe 7 is directed at urea nozzle peace
Fill the treatment fluid import 301 on seat 3；Air inlet pipe 5 is vertical with 7 axis of cyclone pipe；
Cyclone pipe 7 is provided with whirlpool generation blade 701 around axis；Whirlpool generation blade 701 is located on cyclone pipe 7 close to processing
301 1 sections of liquid import, another section on cyclone pipe 7 away from treatment fluid import 301 is porous section；Porous section of portion on cyclone pipe 7
Divide and stretch into circular cylindrical cavity；Cyclone pipe 7 is connect close to one end for the treatment of fluid import 301 with horn-like deflector 8；
In circular cylindrical cavity, flow-disturbing partition board 6 is equipped with after U-shaped cavity.Refer to U-shaped cavity body to circular cylindrical cavity after U-shaped cavity
Gas outlet side；
Application method：The inlet end of air inlet pipe 5 is connected with the tail gas of automobile engine（Flanged joint, reducer pipe can be used to connect
Connect, directly welding or direct extending cavity）, can also connect with other exhaust gas processing devices（Flanged joint, reducer pipe can be used
Connection is directly welded）.The tail gas of automobile engine enters U-shaped cavity by air inlet pipe 5, vertical to flow into 7 top of cyclone pipe, through overwinding
7 upper blade of flow tube forms circinate air-flow, and urea is by the parallel cyclone pipe 7 of the urea nozzle for being mounted on urea nozzle mounting base 3
Axis direction spray into, swirl shape air-flow breaks up urea, while urea volatilizes ammonia at high temperature, and deflector 8 is bootable
Gas flow purging urea nozzle avoids crystallizing.
Ammonia and vehicle exhaust be sufficiently mixed after gas, dissipated around by 7 porous sections of parts of cyclone pipe, cyclone pipe
Air-flow is become equally distributed fluid by 7 porous section of part, and circular cylindrical cavity is distributed in after flow-disturbing partition board 6 with parallel gas
Stream outflow.Mixed gas after outflow enters SCR catalyst and is catalyzed.Location arrangements temperature can be selected in circular cylindrical cavity
Sensor and pressure sensor, this amphitypy sensor can more accurately control the catalytic treatment of tail gas.Such as cylindrical cavity
Set temperature sensor is used to measure the temperature of mixed gas in cylindrical cavity body on body.
Entire urea mixing device is suitable for various cartridge types, box SCR type exhaust aftertreatment products, overall structure ruler
It is very little small, appropriate amplification and diminution can be also selected according to extraction flow；It is a kind of economic, efficient, strong applicability urea mixing
Device.
Claims (9)
1. a kind of vehicle tail gas processing treatment fluid mixing arrangement, which is characterized in that including the first cavity, first cavity side
Face is equipped with the second cavity；One end closing of first cavity, another end opening is as gas outlet；
Second cavity is equipped with air inlet pipe and treatment fluid import；The cyclone pipe of registration process liquid import is equipped in second cavity；Institute
It states cyclone pipe and axis is provided with whirlpool generation blade；Whirlpool generation blade is located on cyclone pipe close to treatment fluid import one
Section, another section on cyclone pipe away from treatment fluid import is porous section；Porous section of part on cyclone pipe is stretched into the first cavity；
In the first cavity, flow-disturbing partition board is equipped with after the second cavity.
2. vehicle tail gas processing treatment fluid mixing arrangement as described in claim 1, which is characterized in that
Air inlet pipe is vertical with cyclone pipe axis, and opposite with whirlpool generation blade.
3. vehicle tail gas processing treatment fluid mixing arrangement as described in claim 1, which is characterized in that
Stomata on porous section of cyclone pipe is uniformly distributed on 360 degree of circumferential surfaces.
4. vehicle tail gas processing treatment fluid mixing arrangement as described in claim 1, which is characterized in that
It is identical with eddy flow tube axis direction by the treatment fluid that treatment fluid import is injected into.
5. vehicle tail gas processing treatment fluid mixing arrangement as described in claim 1, which is characterized in that
Second cavity is connected to the first cavity and is biased to blind end side.
6. vehicle tail gas processing treatment fluid mixing arrangement as described in claim 1, which is characterized in that
Cyclone pipe is connect close to one end for the treatment of fluid import with horn-like deflector.
7. vehicle tail gas processing treatment fluid mixing arrangement as described in claim 1, which is characterized in that
First cavity is equipped with temperature sensor and/or pressure sensor.
8. vehicle tail gas processing treatment fluid mixing arrangement as described in claim 1, which is characterized in that
First cavity uses circular cylindrical cavity.
9. vehicle tail gas processing treatment fluid mixing arrangement as described in claim 1, which is characterized in that
Second cavity uses U-shaped cavity body, and U-shaped cavity body includes the U-shaped cavity end cap being connected and U-shaped cylinder；U-shaped cavity end cap is equipped with urine
Plain nozzle mounting base, the setting treatment fluid import of urea nozzle mounting base centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711410535.6A CN108150255B (en) | 2017-12-23 | 2017-12-23 | Treating fluid mixing device for vehicle tail gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711410535.6A CN108150255B (en) | 2017-12-23 | 2017-12-23 | Treating fluid mixing device for vehicle tail gas treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108150255A true CN108150255A (en) | 2018-06-12 |
| CN108150255B CN108150255B (en) | 2020-07-28 |
Family
ID=62465586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711410535.6A Active CN108150255B (en) | 2017-12-23 | 2017-12-23 | Treating fluid mixing device for vehicle tail gas treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150255B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453666A (en) * | 2018-11-30 | 2019-03-12 | 精诚工科汽车系统有限公司 | Mixer and vehicle |
| CN110748402A (en) * | 2019-12-06 | 2020-02-04 | 无锡威孚力达催化净化器有限责任公司 | U-shaped post-processor urea mixing device |
| CN111156072A (en) * | 2019-12-19 | 2020-05-15 | 河北亿利橡塑集团有限公司 | Tail gas aftertreatment mixing arrangement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140024082A (en) * | 2012-08-17 | 2014-02-28 | 세종공업 주식회사 | Mixing module for post treatment exhaust contamination gas decreasing system in diesel engine |
| CN206016918U (en) * | 2016-08-30 | 2017-03-15 | 无锡威孚力达催化净化器有限责任公司 | A kind of carbamide injection mixed cell for cartridge type depurator |
| CN206016920U (en) * | 2016-08-30 | 2017-03-15 | 无锡威孚力达催化净化器有限责任公司 | Urea injection mixed cell for diesel engine vent gas post processing |
| CN206111296U (en) * | 2016-09-26 | 2017-04-19 | 天纳克（苏州）排放系统有限公司 | Hybrid module |
| US20170152778A1 (en) * | 2015-12-01 | 2017-06-01 | GM Global Technology Operations LLC | Reductant mixing system for an exhaust gas after-treatment device |
| CN207905902U (en) * | 2017-12-23 | 2018-09-25 | 无锡威孚力达催化净化器有限责任公司 | Vehicle tail gas processing treatment fluid mixing arrangement |
-
2017
- 2017-12-23 CN CN201711410535.6A patent/CN108150255B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140024082A (en) * | 2012-08-17 | 2014-02-28 | 세종공업 주식회사 | Mixing module for post treatment exhaust contamination gas decreasing system in diesel engine |
| US20170152778A1 (en) * | 2015-12-01 | 2017-06-01 | GM Global Technology Operations LLC | Reductant mixing system for an exhaust gas after-treatment device |
| CN206016918U (en) * | 2016-08-30 | 2017-03-15 | 无锡威孚力达催化净化器有限责任公司 | A kind of carbamide injection mixed cell for cartridge type depurator |
| CN206016920U (en) * | 2016-08-30 | 2017-03-15 | 无锡威孚力达催化净化器有限责任公司 | Urea injection mixed cell for diesel engine vent gas post processing |
| CN206111296U (en) * | 2016-09-26 | 2017-04-19 | 天纳克（苏州）排放系统有限公司 | Hybrid module |
| CN207905902U (en) * | 2017-12-23 | 2018-09-25 | 无锡威孚力达催化净化器有限责任公司 | Vehicle tail gas processing treatment fluid mixing arrangement |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453666A (en) * | 2018-11-30 | 2019-03-12 | 精诚工科汽车系统有限公司 | Mixer and vehicle |
| CN110748402A (en) * | 2019-12-06 | 2020-02-04 | 无锡威孚力达催化净化器有限责任公司 | U-shaped post-processor urea mixing device |
| CN111156072A (en) * | 2019-12-19 | 2020-05-15 | 河北亿利橡塑集团有限公司 | Tail gas aftertreatment mixing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108150255B (en) | 2020-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106523092B (en) | The conical surface type eddy flow urea mixing devices of page two | |
| US9341099B2 (en) | Emissions cleaning module | |
| KR101251518B1 (en) | Dosing module for exhaust after-treatment system of vehicle | |
| CN201551965U (en) | Selective catalytic reduction catalyst injection system | |
| US10012124B2 (en) | Angled and compact exhaust gas aftertreatment device | |
| CN109477411B (en) | Fluid diverter to reduce deposits in a doser cone | |
| CN106523091B (en) | Page window type eddy flow urea mixing device | |
| CN108087067A (en) | Eddy flow urea mixing device | |
| CN203452874U (en) | SCR catalyzing silencer and mixing tube device of SCR catalyzing silencer | |
| CN205190011U (en) | Cartridge SCR aftertreatment hybrid chamber | |
| CN207686807U (en) | Vent gas treatment urea mixing device | |
| CN205190012U (en) | Cartridge SCR aftertreatment hybrid chamber | |
| CN207686804U (en) | Eddy flow urea mixing device | |
| CN108150255A (en) | Vehicle tail gas processing treatment fluid mixing arrangement | |
| CN106401711B (en) | Honeycomb hemisphere open type urea mixing device | |
| CN207686806U (en) | Vehicle tail gas processing urea mixing device | |
| CN106401715A (en) | Inclined tube type rotationally-flowing urea mixing device | |
| CN207686808U (en) | Side post-processes urea mixing device into nozzle integrated form SCR | |
| CN207905902U (en) | Vehicle tail gas processing treatment fluid mixing arrangement | |
| CN106014580A (en) | Novel urea crystallization-prevention exhaust pipe used for diesel engine SCR system | |
| CN106437967B (en) | Honeycomb type eddy flow urea mixing device | |
| CN106437968B (en) | Integrated wave eddy flow urea mixing device | |
| CN107939488A (en) | Vehicle tail gas processing urea mixing device | |
| CN107939489A (en) | Vent gas treatment urea mixing device | |
| CN206329370U (en) | A kind of urea injector of axially injection |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |