CN105597956B - Mixer integrated form injection unit - Google Patents
Mixer integrated form injection unit Download PDFInfo
- Publication number
- CN105597956B CN105597956B CN201510947353.7A CN201510947353A CN105597956B CN 105597956 B CN105597956 B CN 105597956B CN 201510947353 A CN201510947353 A CN 201510947353A CN 105597956 B CN105597956 B CN 105597956B
- Authority
- CN
- China
- Prior art keywords
- tapered cup
- urea
- injection unit
- blade
- integrated form
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0483—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with gas and liquid jets intersecting in the mixing chamber
-
- 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
- F01N2610/14—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
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 diesel engine vent gas to post-process field, it is related to a kind of mixer integrated form injection unit, including Tapered Cup, the Tapered Cup lower nozzle is fixedly connected with hollow pipe fitting, circumferentially shape is uniformly arranged some blades to Tapered Cup inner wall surface, sinks bowl on the inside of blade, and urea nozzle sprays base by urea and is fixed on heavy bowl bottom, urea nozzle is fixed with partition plate towards pipe fitting direction, Tapered Cup surface.The injection unit is compact-sized rationally, can realize the effect that urea good mixing effect, urea will not crystallize at work.
Description
Technical field
The invention belongs to diesel engine vent gas to post-process field, is related to a kind of mixer integrated form injection unit.
Background technology
With implementing in full for state four standard of the China on limiting exhaust gas from diesel vehicle pollutant emission, SCR（Selectivity is also
Former catalyst converter）Technology is increasingly becoming major engine works of China and post-processes the vent gas treatment route of supplier's selection.SCR technology
The noble metals such as platinum, palladium are coated i.e. on carrier, urea liquid is sprayed into tail gas, when the tail gas for being mixed with urea liquid enters catalysis
Agent, the NOx in tail gas is greatly lowered under the catalysis of the noble metals such as platinum, palladium, so as to fulfill by vent gas treatment to meeting state
Four and the discharge standard of the above.
Urea liquid and air are exactly sufficiently mixed by one crucial technology of SCR technology, evenly into SCR end faces,
And urea liquid has the characteristic that chance low temperature easily crystallizes.Therefore original design mixes uneven, urine there are urea liquid with tail gas
The problem of element easily crystallizes on the mixer.And integrated level is not high, it is difficult to meet state five, six box post-process nozzle of state integrate,
Compact-sized requirement.
The content of the invention
The present invention is in view of the above-mentioned problems, provide a kind of mixer integrated form injection unit, the compact-sized conjunction of the injection unit
Reason, can realize the effect that urea good mixing effect, urea will not crystallize at work.
Technical solution according to the invention：A kind of mixer integrated form injection unit, it is characterised in that：Including Tapered Cup,
The Tapered Cup lower nozzle is fixedly connected with hollow pipe fitting, and circumferentially shape is uniformly arranged some blades to Tapered Cup inner wall surface, sinks
Bowl on the inside of the blade, spray base by urea and be fixed on heavy bowl bottom by urea nozzle, and urea nozzle is towards pipe fitting
Direction, Tapered Cup surface are fixed with partition plate.
As a further improvement on the present invention, distance is 30mm ~ 50mm between the partition plate upper surface and Tapered Cup top surface.
As a further improvement on the present invention, it is punching press center line among the vane tip, blade is divided into by punching press center line
Two panels, wherein being welded to connect close to heavy one lateral piece of bowl with heavy bowl, connects close to one lateral piece of Tapered Cup and Tapered Cup welding
Connect, the punching press center line and Tapered Cup surface into angular region be 30 ° ~ 60 °.
As a further improvement on the present invention, gas channel is formed between the blade and heavy bowl and Tapered Cup.
The technical effects of the invention are that：The present invention uses blade-type mixer, makes flow rotation, therein to spraying into
Urea liquid is sufficiently mixed, and mixed effect is outstanding；Urea nozzle is embedded in blender blade center, urea by sinking to structure
It is injected directly into swirling eddy center, no urea is rebuffed situation, greatly reduces the crystallization risk of non-air auxiliary type urea nozzle；It is non-
Air-assist type urea nozzle is combined closely with mixer, compact-sized, reliable.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the scheme of installation of blade of the present invention.
Fig. 3 is the stereogram of the present invention.
Embodiment
The embodiment of the present invention is further described below in conjunction with the accompanying drawings.
In Fig. 1 ~ 3, including partition plate 1, heavy bowl 2, urea nozzle 3, blade 4, pipe fitting 5, Tapered Cup 6 etc..
As shown in Fig. 1 ~ 3, the present invention is a kind of mixer integrated form injection unit, including Tapered Cup 6, the Tapered Cup 6
Lower nozzle is fixedly connected with hollow pipe fitting 5, and circumferentially shape is uniformly arranged some blades 4 to 6 inner wall surface of Tapered Cup, and bowl 2 of sinking is embedding
Loaded on the inner side of blade 4, urea nozzle 3 sprays base by urea and is fixed on heavy 2 bottom of bowl, and urea nozzle 3 is towards 5 side of pipe fitting
To 6 surface of Tapered Cup is fixed with partition plate 1.
Distance is 30mm ~ 50mm between 6 top surface of 1 upper surface of partition plate and Tapered Cup.
4 crown center of blade is punching press center line, and punching press center line divides blade 4 for two panels, wherein close to 2 one lateral plate of heavy bowl
Body is welded to connect with heavy bowl 2, is welded to connect close to 6 one lateral piece of Tapered Cup with Tapered Cup 6, the punching press center line and Tapered Cup
6 surfaces into angular region be 30 ° ~ 60 °.
Gas channel is formed between blade 4 and heavy bowl 2 and Tapered Cup 6.
Blade 4 in product of the present invention is regular blade shape, is stamped to form by stainless steel plate, 4 upper end plate folding of blade
Angle is less than 4 lower end plate corner of blade, in order to the gas channel of formation, can effectively pass through.
The course of work of the present invention is as follows：Arrow is airflow direction in Fig. 1, and air-flow passes through blade 4, heavy bowl 2 and taper
The gas channel that part 6 is formed, rotates under the water conservancy diversion of blade 4.The centre bore face swirling eddy center of urea nozzle 3,
Urea is sprayed into swirling eddy center, urea liquid enters SCR carriers end face after being sufficiently mixed with tail gas in pipe fitting 5.
Claims (4)
- A kind of 1. mixer integrated form injection unit, it is characterised in that：Including Tapered Cup（6）, the Tapered Cup（6）Lower nozzle It is fixedly connected with hollow pipe fitting（5）, Tapered Cup（6）Circumferentially shape is uniformly arranged some blades to inner wall surface（4）, heavy bowl（2）It is embedding Loaded on blade（4）Inner side, urea nozzle（3）Base is sprayed by urea and is fixed on heavy bowl（2）Bottom, urea nozzle（3）Court To pipe fitting（5）Direction, Tapered Cup（6）Surface is fixed with partition plate（1）.
- 2. mixer integrated form injection unit as claimed in claim 1, it is characterised in that：The partition plate（1）Upper surface and cone Shape part（6）Distance is 30mm ~ 50mm between top surface.
- 3. mixer integrated form injection unit as claimed in claim 1, it is characterised in that：The blade（4）Crown center is Punching press center line, punching press center line is by blade（4）It is divided into two panels, wherein close to heavy bowl（2）One lateral piece and heavy bowl（2）Welding connects Connect, close to Tapered Cup（6）One lateral piece and Tapered Cup（6）It is welded to connect, the punching press center line and Tapered Cup（6）Surface angulation model Enclose for 30 ° ~ 60 °.
- 4. mixer integrated form injection unit as claimed in claim 1, it is characterised in that：The blade（4）With heavy bowl（2） And Tapered Cup（6）Between form gas channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510947353.7A CN105597956B (en) | 2015-12-17 | 2015-12-17 | Mixer integrated form injection unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510947353.7A CN105597956B (en) | 2015-12-17 | 2015-12-17 | Mixer integrated form injection unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105597956A CN105597956A (en) | 2016-05-25 |
| CN105597956B true CN105597956B (en) | 2018-04-27 |
Family
ID=55978620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510947353.7A Active CN105597956B (en) | 2015-12-17 | 2015-12-17 | Mixer integrated form injection unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105597956B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368773B (en) * | 2016-08-30 | 2019-03-29 | 潍柴动力股份有限公司 | A kind of engine and its double-cyclone mixing arrangement |
| CN106194347B (en) * | 2016-08-30 | 2018-12-04 | 无锡威孚力达催化净化器有限责任公司 | A kind of swirl vane formula urea injection mixed cell |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1180236A (en) * | 1966-04-20 | 1970-02-04 | Lucas Industries Ltd | Combustion Apparatus for use with Exhaust Systems of Internal Combustion Engines |
| EP2090761A1 (en) * | 2008-02-16 | 2009-08-19 | Pierburg GmbH | Exhaust gas treatment system for an internal combustion engine |
| CN201470307U (en) * | 2009-09-04 | 2010-05-19 | 东风汽车有限公司 | Turbulent flow mixer for tail gas of engine |
| JP2011519400A (en) * | 2008-04-25 | 2011-07-07 | テネコ オートモティブ オペレーティング カンパニー インコーポレイテッド | Exhaust additive treatment device and mixer used in the same |
| DE102010056314A1 (en) * | 2010-12-27 | 2012-06-28 | Friedrich Boysen Gmbh & Co. Kg | Device for distributing fluids in exhaust systems |
-
2015
- 2015-12-17 CN CN201510947353.7A patent/CN105597956B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1180236A (en) * | 1966-04-20 | 1970-02-04 | Lucas Industries Ltd | Combustion Apparatus for use with Exhaust Systems of Internal Combustion Engines |
| EP2090761A1 (en) * | 2008-02-16 | 2009-08-19 | Pierburg GmbH | Exhaust gas treatment system for an internal combustion engine |
| JP2011519400A (en) * | 2008-04-25 | 2011-07-07 | テネコ オートモティブ オペレーティング カンパニー インコーポレイテッド | Exhaust additive treatment device and mixer used in the same |
| CN201470307U (en) * | 2009-09-04 | 2010-05-19 | 东风汽车有限公司 | Turbulent flow mixer for tail gas of engine |
| DE102010056314A1 (en) * | 2010-12-27 | 2012-06-28 | Friedrich Boysen Gmbh & Co. Kg | Device for distributing fluids in exhaust systems |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105597956A (en) | 2016-05-25 |
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| PB01 | Publication | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant |