CN106401711B - Honeycomb hemisphere open type urea mixing device - Google Patents
Honeycomb hemisphere open type urea mixing device Download PDFInfo
- Publication number
- CN106401711B CN106401711B CN201610938583.1A CN201610938583A CN106401711B CN 106401711 B CN106401711 B CN 106401711B CN 201610938583 A CN201610938583 A CN 201610938583A CN 106401711 B CN106401711 B CN 106401711B
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- China
- Prior art keywords
- outlet side
- cylinder
- cyclone pipe
- mixing device
- open type
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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
- 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
-
- 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
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- 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 relates to a kind of urea mixing devices, specifically honeycomb hemisphere open type urea mixing device, belong to diesel engine vent gas processing equipment technical field.It includes cylinder and cyclone pipe, and cylinder inlet end is equipped with air inlet endplate, and the cylinder outlet side first half is equipped with outlet side upper spacer, and cylinder outlet side lower half is equipped with outlet side lower clapboard, and gas outlet is equipped between outlet side upper spacer and outlet side lower clapboard.Intermediate bulkhead is transversely provided in the middle part of cylinder, the upper cavity of intermediate bulkhead is connected to the cyclone pipe first half and inlet end cavity, and the lower chamber of intermediate bulkhead is connected to cyclone pipe lower half and outlet side cavity.The invention has the advantages of simple structure, compactness and reasonable structure, by changing exhaust gas flow path tail gas is sufficiently mixed with ammonia, improves the effect of vent gas treatment；The setting of gas outlet makes tail gas be uniformly dispersed onto the section of entire cylinder between lower clapboard on outlet side, avoids the occurrence of the phenomenon that tail gas bias flows.
Description
Technical field
The present invention relates to a kind of urea mixing devices, specifically honeycomb hemisphere open type urea mixing device, belong to
Diesel engine vent gas processing equipment technical 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 is by harmful oxynitrides in diesel engine vent gas under the effect of the catalyst（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 ensureing sufficient temp before entering catalyst.
Invention content
It is an object of the present invention to overcome the above deficiencies, to provide a kind of honeycomb hemisphere open type urea mixing dress
It sets, by changing exhaust gas flow path tail gas is sufficiently mixed with ammonia, improves the effect of vent gas treatment.
According to technical solution provided by the invention, honeycomb hemisphere open type urea mixing device includes cylinder and cyclone pipe,
Cyclone pipe is fixed in cylinder, cyclone pipe is orthogonal with cylinder, it is characterized in that：Cyclone pipe first half side wall is equipped with multiple eddy flows
Blade, cyclone pipe lower half side wall are equipped with multiple eddy flow pores；Cylinder inlet end is equipped with air inlet endplate, and air inlet endplate will
Cylinder inlet end is separated into inlet end cavity；The cylinder outlet side first half is equipped with outlet side upper spacer, cylinder outlet side lower half
Equipped with outlet side lower clapboard, gas outlet is equipped between outlet side upper spacer and outlet side lower clapboard；Outlet side upper spacer and outlet
Cylinder outlet side is separated into outlet side cavity by end lower clapboard；It is transversely provided with intermediate bulkhead in the middle part of cylinder, intermediate bulkhead is by cylinder
Two independent cavitys up and down are separated into the middle part of body, upper cavity and the cyclone pipe first half and inlet end cavity of intermediate bulkhead connect
Logical, the lower chamber of intermediate bulkhead is connected to cyclone pipe lower half and outlet side cavity.
Further, multiple swirl vanes are uniformly distributed along cyclone pipe circumferencial direction.
Further, multiple eddy flow pores are uniformly distributed along cyclone pipe circumferencial direction.
Further, gas outlet is fusiformis.
Further, outlet side upper spacer and outlet side lower clapboard are hemisphere face structure.
Further, outlet side lower clapboard is equipped with multiple partition board ventholes, and multiple partition board ventholes are uniformly distributed.
Further, the lateral wall of cylinder is equipped with temperature sensor and pressure sensor.
Further, cyclone pipe setting swirl vane one end is equipped with injection pedestal, and injection pedestal exposes drum surface.
Compared with the prior art the present invention has the following advantages：
The invention has the advantages of simple structure, compactness and reasonable structure, by changing exhaust gas flow path tail gas is sufficiently mixed with ammonia,
Improve the effect of vent gas treatment；The setting of gas outlet makes tail gas be uniformly dispersed to entire cylinder between lower clapboard on outlet side
Section on, avoid the occurrence of tail gas bias flowing the phenomenon that.
Description of the drawings
Fig. 1 is outlet side stereogram of the present invention.
Fig. 2 is inlet end stereogram of the present invention.
Fig. 3 is outlet side stereogram after the present invention is half-sectional.
Fig. 4 is inlet end stereogram after the present invention is half-sectional.
Reference sign：1- cylinders, 2- cyclone pipes, 3- injection pedestal, 4- air inlets endplate, the outlet sides 5- lower clapboard,
The outlet sides 6- upper spacer, 7- intermediate bulkheads, the gas outlets 8-, 9- swirl vanes, 10- eddy flows pore, 11- partition boards venthole, 12- temperature
Spend sensor, 13- pressure sensors.
Specific implementation mode
The present invention will be further described in conjunction with the embodiment in attached drawing below：
As shown in Fig. 1 ~ 4, the invention mainly comprises cylinder 1 and cyclone pipe 2, fix cyclone pipe 2 in cylinder 1, cyclone pipe 2 with
Cylinder 1 is orthogonal.
2 first half side wall of cyclone pipe is equipped with multiple swirl vanes 9, and multiple swirl vanes 9 are along 2 circumferencial direction of cyclone pipe
It is uniformly distributed.2 lower half side wall of cyclone pipe is equipped with multiple eddy flow pores 10, and multiple eddy flow pores 10 are along 2 circumference of cyclone pipe
Direction is uniformly distributed.
Both ends one end of cylinder 1 is the inlet end of tail gas, and the other end is the outlet side of tail gas.1 inlet end of cylinder be equipped with into
1 inlet end of cylinder is separated into inlet end cavity by gas endplate 4, air inlet endplate 4.The 1 outlet side first half of cylinder is equipped with outlet
Upper spacer 6 is held, 1 outlet side lower half of cylinder is equipped with outlet side lower clapboard 5, between outlet side upper spacer 6 and outlet side lower clapboard 5
Gas outlet 8 equipped with fusiformis.1 outlet side of cylinder is separated into outlet side cavity by outlet side upper spacer 6 and outlet side lower clapboard 5.
The purpose that fusiformis gas outlet 8 is arranged is to avoid the occurrence of tail in order to which the tail gas for allowing out is uniformly dispersed onto the section of entire cylinder
The phenomenon that gas bias flows.
The outlet side upper spacer 6 and outlet side lower clapboard 5 are hemisphere face structure, and outlet side lower clapboard 5 is equipped with multiple
Partition board venthole 11, multiple partition board ventholes 11 are uniformly distributed.
The middle part of cylinder 1 is transversely provided with intermediate bulkhead 7, intermediate bulkhead 7 will 1 middle part of cylinder be separated into up and down two it is independent
Cavity.The upper cavity of intermediate bulkhead 7 is connected to 2 first half of cyclone pipe and inlet end cavity, the lower chamber and eddy flow of intermediate bulkhead 7
2 lower half of pipe is connected to outlet side cavity.
The cyclone pipe 2 is arranged swirl vane one end and is equipped with injection pedestal 3, and injection pedestal 3 exposes 1 surface of cylinder, injection
For connecting urea spray tank, ammonia is ejected by urea spray tank in cyclone pipe 2 pedestal 3, is sent out with the tail gas in cyclone pipe 2
Raw reaction.
The lateral wall of the cylinder 1 is equipped with temperature sensor 12 and pressure sensor 13, temperature sensor 12 and pressure
Sensor 13 can more accurately control the catalytic treatment of tail gas.
The present invention operation principle be：When in use, the inlet end of cylinder is connect with motor vehicle exhaust emission end.Automobile is sent out
The tail gas of motivation is entered by inlet end, is entered in cyclone pipe along air inlet endplate and intermediate bulkhead, and urea spray tank sprays into urine
It is fully reacted with tail gas in element to cyclone pipe.Complete reaction tail gas enter cyclone pipe lower half, along eddy flow pore into
Enter in the cavity of outlet side.The lower half of gas in the cavity of outlet side passes through multiple partition board ventholes on outlet side lower clapboard 5
11 flow out, and the first half of the gas in the cavity of outlet side flow to first half space by the gas outlet 8 of fusiformis so that out
Tail gas being capable of the uniformly diverging outflow on entire cylinder section.Gas after outflow enters SCR catalyst and is catalyzed.
The invention has the advantages of simple structure, compactness and reasonable structure, by changing exhaust gas flow path tail gas is sufficiently mixed with ammonia,
Improve the effect of vent gas treatment；The setting of gas outlet makes tail gas be uniformly dispersed to entire cylinder between lower clapboard on outlet side
Section on, avoid the occurrence of tail gas bias flowing the phenomenon that.
Claims (8)
1. a kind of honeycomb hemisphere open type urea mixing device, including cylinder（1）And cyclone pipe（2）, cylinder（1）Interior fixed eddy flow
Pipe（2）, cyclone pipe（2）With cylinder（1）It is orthogonal, it is characterized in that：Cyclone pipe（2）First half side wall is equipped with multiple eddy flow leaves
Piece（9）, cyclone pipe（2）Lower half side wall is equipped with multiple eddy flow pores（10）；Cylinder（1）Inlet end is equipped with air inlet endplate
（4）, air inlet endplate（4）By cylinder（1）Inlet end is separated into inlet end cavity；Cylinder（1）The outlet side first half is equipped with outlet
Hold upper spacer（6）, cylinder（1）Outlet side lower half is equipped with outlet side lower clapboard（5）, outlet side upper spacer（6）Under outlet side
Partition board（5）Between be equipped with gas outlet（8）；Outlet side upper spacer（6）With outlet side lower clapboard（5）By cylinder（1）Outlet side separates
At outlet side cavity；Cylinder（1）Middle part be transversely provided with intermediate bulkhead（7）, intermediate bulkhead（7）By cylinder（1）It is separated into up and down
Two independent cavitys, intermediate bulkhead（7）Upper cavity and cyclone pipe（2）The first half is connected to inlet end cavity, intermediate bulkhead
（7）Lower chamber and cyclone pipe（2）Lower half is connected to outlet side cavity.
2. honeycomb hemisphere open type urea mixing device as described in claim 1, it is characterized in that：The multiple swirl vane
（9）Along cyclone pipe（2）Circumferencial direction is uniformly distributed.
3. honeycomb hemisphere open type urea mixing device as described in claim 1, it is characterized in that：The multiple eddy flow pore
（10）Along cyclone pipe（2）Circumferencial direction is uniformly distributed.
4. honeycomb hemisphere open type urea mixing device as described in claim 1, it is characterized in that：The gas outlet（8）For shuttle
Shape.
5. honeycomb hemisphere open type urea mixing device as described in claim 1, it is characterized in that：The outlet side upper spacer
（6）With outlet side lower clapboard（5）For hemisphere face structure.
6. honeycomb hemisphere open type urea mixing device as described in claim 1, it is characterized in that：The outlet side lower clapboard
（5）It is equipped with multiple partition board ventholes（11）, multiple partition board ventholes（11）It is uniformly distributed.
7. honeycomb hemisphere open type urea mixing device as described in claim 1, it is characterized in that：The cylinder（1）Outside
Wall is equipped with temperature sensor（12）And pressure sensor（13）.
8. honeycomb hemisphere open type urea mixing device as described in claim 1, it is characterized in that：The cyclone pipe（2）Setting
Swirl vane one end is equipped with injection pedestal（3）, spray pedestal（3）Expose cylinder（1）Surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938583.1A CN106401711B (en) | 2016-10-25 | 2016-10-25 | Honeycomb hemisphere open type urea mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938583.1A CN106401711B (en) | 2016-10-25 | 2016-10-25 | Honeycomb hemisphere open type urea mixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401711A CN106401711A (en) | 2017-02-15 |
| CN106401711B true CN106401711B (en) | 2018-10-19 |
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ID=58012444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610938583.1A Active CN106401711B (en) | 2016-10-25 | 2016-10-25 | Honeycomb hemisphere open type urea mixing device |
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| Country | Link |
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| CN (1) | CN106401711B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707491A (en) * | 2019-03-07 | 2019-05-03 | 广西玉柴机器股份有限公司 | The mixer of spraying system |
| KR102114905B1 (en) * | 2020-02-12 | 2020-05-25 | 주식회사 테스크 | Swirl compact SCR Mixer with Urea Removing Module |
| KR102114909B1 (en) * | 2020-02-12 | 2020-05-25 | 주식회사 테스크 | Swirl compact mixer |
| CN113790092B (en) * | 2021-09-27 | 2023-03-24 | 无锡威孚力达催化净化器有限责任公司 | Double-vortex flow type urea mixing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1712751B1 (en) * | 2005-04-15 | 2012-07-11 | FPT Industrial S.p.A. | Static mixer |
| CN104131869A (en) * | 2013-05-03 | 2014-11-05 | 埃贝施佩歇尔排气技术有限及两合公司 | Flow-in chamber used for catalytic converter of discharge control system |
| CN105822396A (en) * | 2016-05-23 | 2016-08-03 | 潍柴动力股份有限公司 | Urea mixing device and SCR (Selective Catalytic Reduction) system |
| CN205532797U (en) * | 2016-04-11 | 2016-08-31 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101251518B1 (en) * | 2010-12-09 | 2013-04-05 | 기아자동차주식회사 | Dosing module for exhaust after-treatment system of vehicle |
-
2016
- 2016-10-25 CN CN201610938583.1A patent/CN106401711B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1712751B1 (en) * | 2005-04-15 | 2012-07-11 | FPT Industrial S.p.A. | Static mixer |
| CN104131869A (en) * | 2013-05-03 | 2014-11-05 | 埃贝施佩歇尔排气技术有限及两合公司 | Flow-in chamber used for catalytic converter of discharge control system |
| CN205532797U (en) * | 2016-04-11 | 2016-08-31 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment device |
| CN105822396A (en) * | 2016-05-23 | 2016-08-03 | 潍柴动力股份有限公司 | Urea mixing device and SCR (Selective Catalytic Reduction) system |
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| Publication number | Publication date |
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| CN106401711A (en) | 2017-02-15 |
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