CN111237036A - Shunting rotating urea mixing device - Google Patents
Shunting rotating urea mixing device Download PDFInfo
- Publication number
- CN111237036A CN111237036A CN202010232978.6A CN202010232978A CN111237036A CN 111237036 A CN111237036 A CN 111237036A CN 202010232978 A CN202010232978 A CN 202010232978A CN 111237036 A CN111237036 A CN 111237036A
- Authority
- CN
- China
- Prior art keywords
- urea
- nozzle
- mixing device
- split
- flow
- 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
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000004202 carbamide Substances 0.000 title claims abstract description 111
- 238000002156 mixing Methods 0.000 title claims abstract description 42
- 238000005192 partition Methods 0.000 claims abstract description 14
- 229920000742 Cotton Polymers 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 7
- 238000002425 crystallisation Methods 0.000 abstract description 6
- 230000008025 crystallization Effects 0.000 abstract description 6
- 238000000354 decomposition reaction Methods 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 15
- 230000006872 improvement Effects 0.000 description 9
- 239000007789 gas Substances 0.000 description 6
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000004321 preservation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
-
- 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
-
- 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 relates to a split-flow rotary urea mixing device which comprises a barrel, wherein an air inlet is formed in one side of the barrel, an air outlet is formed in the other side of the barrel, a urea mounting hole is formed in the periphery of the barrel, a nozzle base is installed in the urea mounting hole, a urea nozzle is installed in the nozzle base, a partition plate is installed at the port of the air inlet, a transverse plate is arranged in the middle of the partition plate, a cyclone tube mounting hole is formed in the transverse plate, an upper baffle is arranged at the upper portion of one side of the transverse plate, a lower baffle is arranged at the lower portion of the other side of the transverse plate, a guide plate is arranged below the cyclone tube mounting hole, cyclone tubes are installed in the cyclone tube mounting hole, cyclone ports are evenly distributed in. The urea mixing device is simple in structure, urea is introduced into a plurality of areas for diffusion through the shunting effect, and urea accumulation is reduced, so that the urea mixing effect and the urea decomposition rate are obviously improved, and the urea mixing device is used for solving the problems of mixing, decomposition and crystallization prevention of urea in an SCR system.
Description
Technical Field
The invention belongs to the technical field of diesel engine tail gas aftertreatment, and relates to a split-flow rotary urea mixing device.
Background
In the application technology of the SCR system, how to uniformly mix the injected urea and the engine exhaust gas and complete the secondary crushing of the urea and reduce the crystallization risk of the urea at the mixer position is the key in the whole development process. The after-treatment device is used as a key component of the after-treatment system of the commercial vehicle in the six-emission stage of China, and a urea mixing device of the after-treatment device is not mature.
The common mixing units mostly use fin structures or fiber units to achieve the crushing. The fin structure is limited in urea crushing effect due to the fact that the fin structure is large in machining difficulty of micro fins and the like. In recent years, a cyclone structure is adopted to realize the problem of urea crushing and crystallization, but a urea nozzle is generally arranged above an after-treatment device, and in practical application, the direction of a rotating airflow formed by the cyclone structure is vertical to the airflow direction in an SCR catalyst, so that urea is entrained by the rotating airflow and the accumulation amount below an after-treatment cylinder is large, and serious urea crystallization is easy to generate. Meanwhile, the rotating airflow and the catalyst inlet are in a vertical state, and the distribution uniformity of NH3 on the end face of the SCR catalyst is difficult to ensure. Meanwhile, the urea is difficult to decompose quickly due to the limited breaking capacity of the rotational flow structure on the urea.
Disclosure of Invention
The invention aims to provide a shunting rotating urea mixing device, which is used for introducing urea into a plurality of areas for diffusion through shunting action and reducing urea accumulation so as to remarkably improve urea mixing effect and urea decomposition rate, and is used for solving the problems of urea mixing, decomposition and crystallization prevention in an SCR system.
According to the technical scheme provided by the invention: the utility model provides a rotatory urea mixing arrangement of reposition of redundant personnel, includes the barrel, one side is the air inlet, and the opposite side is the gas outlet, and open the barrel periphery has the urea mounting hole, install the nozzle base in the urea mounting hole, install the urea nozzle in the nozzle base, air inlet port installation baffle, the baffle middle part is the diaphragm, it has the cyclone tube mounting hole to open in the diaphragm, diaphragm one side upper portion is last baffle, diaphragm opposite side lower part is baffle down, cyclone tube mounting hole below sets up the guide plate, install the cyclone tube in the cyclone tube mounting hole, cyclone tube upper portion periphery equipartition whirl mouth, whirl mouth one side sets up the cyclone plate, the interior circumference of cyclone tube lower part installation silk screen ring, gas outlet port installation reposition of redundant personnel rotating assembly.
As a further improvement of the invention, the flow dividing rotating assembly comprises support short pipes, and the periphery of the support short pipes is staggered with flow dividing blades.
As a further improvement of the invention, the wire mesh ring is made of metal material.
As a further improvement of the invention, the outside of the cylinder body is wrapped with heat preservation cotton, and the outside of the heat preservation cotton is provided with a heat insulation cover.
As a further improvement of the invention, the nozzle base is fixedly installed in the urea installation hole through a welding process.
As a further improvement of the urea spraying device, a urea spraying nozzle through hole is formed in the middle of the spraying nozzle base, screw holes are uniformly distributed on the periphery of the urea spraying nozzle through hole, and the urea spraying nozzle is mounted on the spraying nozzle base through bolts.
As a further improvement of the invention, a nozzle protection cover is arranged on the periphery of the urea nozzle.
As a further improvement of the invention, the partition is Z-shaped.
As a further improvement of the invention, the upper baffle and the lower baffle are attached to the inner wall of the cylinder body.
As a further improvement of the invention, two ends of the guide plate are upwarped and uniformly distributed with a plurality of small holes.
Compared with the prior art, the invention has the following advantages:
1. the invention has simple structure and small occupied space; adopt two whirl devices of vertical direction and horizontal direction, vertical direction adopts the cyclone tube subassembly, has guaranteed urea can be after spouting abundant and waste gas mixing. The horizontal direction adopts the reposition of redundant personnel rotatory mixing assembly, has guaranteed the NH3 mixing uniformity of catalyst terminal surface.
2. The lower end of the cyclone tube component adopts a wire mesh structure, so that heat can be collected to the maximum extent, urea particles can be crushed secondarily, and the decomposition rate of urea can be increased.
3. The cyclone tube assembly is fixed on the periphery through the Z-shaped partition plate assembly, and can play a good supporting role.
4. A guide plate is arranged below the Z-shaped partition plate assembly, so that the urea is prevented from being blown to the bottom of the cylinder body by rotating airflow in the vertical direction and is prevented from being accumulated in a large amount at the bottom; the other effect of guide plate is with the quick water conservancy diversion of most urea to the intermediate position of reposition of redundant personnel rotary mixing subassembly, and the urea of being convenient for is diffused from the intermediate position, improves the diffusion degree of consistency. The remaining urea can also be quickly split to the left and right of the baffle, thereby reducing urea accumulation at the same location.
5. According to the invention, a shunting rotational flow mixing assembly is used again after the rotational flow pipe assembly, and the assembly consists of 5 shunting blades, so that airflow and urea can be guided to 5 shunting positions for rotary diffusion, and the accumulation amount of the urea at the same position is reduced.
6. The flow-dividing rotary mixing component can guide airflow to form strong rotary airflow in the horizontal direction, and ensures the efficiency of decomposing urea into ammonia gas and the uniformity of the distribution of ammonia on the front end face of the SCR catalyst.
7. The middle of the flow-dividing rotary mixing component is supported by the short pipe, so that the air flow and urea can be guided to pass through the middle position. 5 rotating blades with the same shape are uniformly distributed around the short pipe and are arranged in a staggered manner, so that the through-flow section is increased to the maximum extent, and the pressure loss caused by rotational flow is reduced.
8. The shunting rotating mixing component has the advantages of simple structure, convenient and easy processing technology and lower cost.
Drawings
FIG. 1 is an axial view of a split-flow rotary urea mixing device according to the present invention.
FIG. 2 is a cross-sectional view of a split-flow rotary urea mixing device of the present invention.
FIG. 3 is an exploded view of the split-flow rotary urea mixing device of the present invention.
FIG. 4 is an exploded view of the swirl tube assembly of the split-flow rotary urea mixing device of the present invention.
FIG. 5 is an exploded view of the Z-shaped partition plate of the split-flow rotary urea mixing device according to the present invention.
FIG. 6 is a schematic view of the split-flow rotary component of the split-flow rotary urea mixing device according to the present invention.
Fig. 7 is a side view of fig. 6.
FIG. 8 is an exploded view of the split rotating assembly of the split rotating urea mixing device of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the figures 1-8, the device comprises a cylinder body 1, an air inlet 1-1, an air outlet 1-2, urea mounting holes 1-3, heat preservation cotton 2, a heat insulation cover 3, a nozzle connecting bolt assembly 4, a nozzle protection cover 5, a urea nozzle 6, a nozzle base 7, a swirl tube 8, a swirl port 8-1, a wire mesh ring 8-2, a partition plate 9, a transverse plate 9-1, swirl tube mounting holes 9-2, an upper baffle plate 9-3, a lower baffle plate 9-4, a guide plate 9-5, a flow dividing rotary assembly 10 and the like.
As shown in fig. 1-3, the invention relates to a split-flow rotary urea mixing device, which mainly comprises a cylinder 1, heat-preservation cotton 2, a heat-insulation cover 3, a nozzle connecting bolt component 4, a nozzle protective cover 5, a urea nozzle 6, a nozzle base 7, a cyclone tube 8, a partition plate 9, a split-flow rotary component 10 and other parts.
The cylinder body 1 is in a transverse state, one side of the cylinder body is an air inlet 1-1, the other side of the cylinder body is an air outlet 1-2, and the upper part of the periphery of the cylinder body 1 is provided with a urea mounting hole 1-3.
The urea installing holes 1-3 are fixedly provided with a nozzle base 7 through a welding process, the middle of the nozzle base 7 is provided with a urea nozzle through hole, screw holes are uniformly distributed on the periphery of the urea nozzle through hole, a urea nozzle 6 and a nozzle protection cover 5 are arranged on the nozzle base 7 through bolts, and the nozzle protection cover 5 is wrapped on the periphery of the urea nozzle 6 and is mainly used for protecting the urea nozzle 6 from heat damage and impact of other parts.
A partition plate 9 is arranged at the port of an air inlet 1-1, as shown in figure 5, the partition plate 9 is Z-shaped, the middle part of the partition plate 9 is a transverse plate 9-1, a cyclone tube mounting hole 9-2 is formed in the transverse plate 9-1, the upper part of one side of the transverse plate 9-1 is an upper baffle plate 9-3, the lower part of the other side of the transverse plate 9-1 is a lower baffle plate 9-4, and the upper baffle plate 9-3 and the lower baffle plate 9-4 are both arc-shaped and are attached to the inner wall of the cylinder 1. The lower baffle 9-4 is positioned at the outer end of the cylinder body 1. A guide plate 9-5 is arranged below the cyclone tube mounting hole 9-2.
The swirl tube 8 is arranged in the swirl tube mounting hole 9-2, the middle part of the swirl tube 8 is positioned in the swirl tube mounting hole 9-2, as shown in fig. 4, swirl ports 8-1 are uniformly distributed on the periphery of the upper part of the swirl tube 8, a swirl plate is arranged on one side of the swirl ports 8-1, and a wire mesh ring 8-2 is arranged on the inner periphery of the lower part of the swirl tube 8. The swirl tube 8 is located below the urea nozzle 6.
The port 1-2 of the air outlet is provided with a flow dividing rotating assembly 10. As shown in fig. 6-8, the splitter rotary assembly 10 is mainly composed of support spools 10-1 and 5 splitter blades 10-2 of the same construction. The splitter blades 10-2 are arranged in a staggered mode and welded around the support short pipe 10-1. The two splitter blades 10-2 form a through-flow area between them, so that the airflow is split into 5 through-flow areas to form a strong counter-clockwise rotating airflow.
The wire mesh ring 8-2 is made of metal materials, and the service life is longer.
The outside parcel of barrel 1 keeps warm cotton 2, then fixes the cotton 2 that keeps warm through heat exchanger 3 for reduce urea mixing arrangement's calorific loss.
The working process of the invention is as follows:
as shown in FIG. 2, when the air flow enters the urea mixer device from the air inlet 1-1 end of the cylinder 1, the air flow passes through the swirl port 8-1 at the upper part of the swirl pipe 8 to form a strong swirling air flow due to the blocking of the lower baffle 9-4. The urea is now sprayed through the urea nozzle 6 into the cyclone tube 8 and forms atomized particles. Atomized particles enter the screen ring 8-2 under the action of strong rotational flow in the rotational flow pipe 8-1, urea particles are crushed in the screen ring 8-2 and quickly evaporated and decomposed, and the urea particles enter the impact guide plate 9-2 under the action of rotational flow gas to change the direction and shunt. Most of the gas stream and the NH3 generated by the decomposition of urea and urea enter the splitter rotor assembly 10 from a central location, guided by the deflector 9-2. The rest urea enters the subsequent mixing cavity from the two sides of the guide plate 9-2, so that the function of multi-path urea distribution is achieved, urea is prevented from accumulating at the bottom of the cylinder body 1 and the bottom of the guide plate 9-2, and the accumulation amount of urea at the same position is reduced. The two sides of the guide plate 9-5 are tilted to guide the air flow and the urea to flow upwards from the two sides, and a plurality of small holes are uniformly distributed on the two sides of the guide plate 9-5 to divide the urea and prevent the urea from accumulating at the position.
Most of NH3 decomposed by urea and entering the flow dividing rotary assembly 10 is staggered by the flow dividing blades 10-2 to form through-flow areas to complete flow dividing, so that the air flow is divided into 5 through-flow areas to form strong anticlockwise rotating rotary air flow, the distribution uniformity of urea and NH3 is greatly improved, and the risk of crystallization caused by accumulation of undecomposed urea at the same position is greatly reduced. In addition, a small part of urea and NH3 is discharged from the middle position through the supporting short pipe 10-1, so that the urea is prevented from being distributed at the edge position of the outlet of the cylinder 1 due to the influence of the centrifugal force of the rotating airflow.
Claims (10)
1. The utility model provides a rotatory urea mixing arrangement of reposition of redundant personnel which characterized in that: the device comprises a cylinder body (1), wherein one side is an air inlet (1-1), the other side is an air outlet (1-2), a urea mounting hole (1-3) is formed in the periphery of the cylinder body 1, a nozzle base (7) is installed in the urea mounting hole (1-3), a urea nozzle (6) is installed in the nozzle base (7), a partition plate (9) is installed at the port of the air inlet (1-1), a transverse plate (9-1) is arranged in the middle of the partition plate (9), a cyclone tube mounting hole (9-2) is formed in the transverse plate (9-1), an upper baffle plate (9-3) is arranged at the upper part of one side of the transverse plate (9-1), a lower baffle plate (9-4) is arranged at the lower part of the other side of the transverse plate (9-1), and a guide plate (9-5) is arranged below, spiral-flow tube (8) is installed in spiral-flow tube mounting hole (9-2), spiral-flow tube (8) upper portion periphery equipartition whirl mouth (8-1), whirl mouth (8-1) one side sets up the whirl board, circle installation silk screen ring (8-2) in spiral-flow tube (8) lower part, gas outlet (1-2) port installation reposition of redundant personnel rotating assembly (10).
2. The split-flow rotary urea mixing device of claim 1, wherein: the flow dividing rotating assembly (10) comprises support short pipes (10-1), and flow dividing blades (9-2) are arranged on the peripheries of the support short pipes (10-1) in a staggered mode.
3. The split-flow rotary urea mixing device of claim 1, wherein: the wire mesh ring (8-2) is made of metal materials.
4. The split-flow rotary urea mixing device of claim 1, wherein: the heat-insulation cotton (2) is wrapped outside the barrel (1), and the heat-insulation cover (3) is arranged outside the heat-insulation cotton (2).
5. The split-flow rotary urea mixing device of claim 1, wherein: the nozzle base (7) is fixedly installed in the urea installation holes (1-3) through a welding process.
6. The split-flow rotary urea mixing device of claim 1, wherein: the urea nozzle is characterized in that a urea nozzle through hole is formed in the middle of the nozzle base (7), screw holes are uniformly distributed on the periphery of the urea nozzle through hole, and the urea nozzle (6) is installed on the nozzle base (7) through bolts.
7. The split-flow rotary urea mixing device of claim 1, wherein: and a nozzle protective cover (5) is arranged on the periphery of the urea nozzle (6).
8. The split-flow rotary urea mixing device of claim 1, wherein: the partition plate (9) is Z-shaped.
9. The split-flow rotary urea mixing device of claim 1, wherein: the upper baffle (9-3) and the lower baffle (9-4) are attached to the inner wall of the cylinder body (1).
10. The split-flow rotary urea mixing device of claim 1, wherein: the two ends of the guide plate (9-5) are upwarped and uniformly distributed with a plurality of small holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010232978.6A CN111237036A (en) | 2020-03-28 | 2020-03-28 | Shunting rotating urea mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010232978.6A CN111237036A (en) | 2020-03-28 | 2020-03-28 | Shunting rotating urea mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111237036A true CN111237036A (en) | 2020-06-05 |
Family
ID=70866277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010232978.6A Pending CN111237036A (en) | 2020-03-28 | 2020-03-28 | Shunting rotating urea mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111237036A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927603A (en) * | 2020-08-19 | 2020-11-13 | 无锡威孚力达催化净化器有限责任公司 | Barrel type transverse post-treatment urea mixing device |
| CN114278417A (en) * | 2022-02-09 | 2022-04-05 | 无锡威孚力达催化净化器有限责任公司 | Exhaust aftertreatment urea mixing arrangement |
| CN114294082A (en) * | 2022-02-07 | 2022-04-08 | 无锡威孚力达催化净化器有限责任公司 | High-efficient blender device of exhaust aftertreatment |
| CN114382571A (en) * | 2022-01-27 | 2022-04-22 | 无锡威孚力达催化净化器有限责任公司 | Layering crushing urea mixing device |
| CN115030803A (en) * | 2022-06-28 | 2022-09-09 | 潍柴动力股份有限公司 | Mixer and diesel engine |
| CN115217590A (en) * | 2022-07-27 | 2022-10-21 | 无锡威孚力达催化净化器有限责任公司 | Urea mixing arrangement that two-way whirl is strengthened |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010041102A1 (en) * | 2010-09-21 | 2012-03-22 | Robert Bosch Gmbh | Device for reducing e.g. nitrogen oxide in exhaust gas stream from diesel engine of motor car, has particulate filter connected with catalytic converter by pipe section, and fine mixer arranged upstream to converter |
| CN206129367U (en) * | 2016-10-12 | 2017-04-26 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment 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 |
| CN108425724A (en) * | 2016-04-11 | 2018-08-21 | 天纳克（苏州）排放系统有限公司 | Tail-gas after treatment apparatus |
| CN109505685A (en) * | 2019-01-16 | 2019-03-22 | 无锡威孚力达催化净化器有限责任公司 | The tilting cartridge type urea mixer of double-cyclone and its application in exhaust gas post-treatment device |
| CN110273734A (en) * | 2019-07-25 | 2019-09-24 | 无锡威孚力达催化净化器有限责任公司 | A kind of bidirectional rotational flow cartridge type urea mixing device |
| CN209637855U (en) * | 2019-03-25 | 2019-11-15 | 无锡威孚力达催化净化器有限责任公司 | A kind of screen type urea mixing device |
| CN110469388A (en) * | 2019-08-26 | 2019-11-19 | 凯龙高科技股份有限公司 | A kind of cartridge type compact mixer for diesel engine vent gas processing |
| CN110725733A (en) * | 2019-11-28 | 2020-01-24 | 广西玉柴机器股份有限公司 | Urea mixer of engine |
| CN212154908U (en) * | 2020-03-28 | 2020-12-15 | 无锡威孚力达催化净化器有限责任公司 | Shunting rotating urea mixing device |
-
2020
- 2020-03-28 CN CN202010232978.6A patent/CN111237036A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010041102A1 (en) * | 2010-09-21 | 2012-03-22 | Robert Bosch Gmbh | Device for reducing e.g. nitrogen oxide in exhaust gas stream from diesel engine of motor car, has particulate filter connected with catalytic converter by pipe section, and fine mixer arranged upstream to converter |
| CN108425724A (en) * | 2016-04-11 | 2018-08-21 | 天纳克（苏州）排放系统有限公司 | Tail-gas after treatment apparatus |
| CN206129367U (en) * | 2016-10-12 | 2017-04-26 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment 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 |
| CN109505685A (en) * | 2019-01-16 | 2019-03-22 | 无锡威孚力达催化净化器有限责任公司 | The tilting cartridge type urea mixer of double-cyclone and its application in exhaust gas post-treatment device |
| CN209637855U (en) * | 2019-03-25 | 2019-11-15 | 无锡威孚力达催化净化器有限责任公司 | A kind of screen type urea mixing device |
| CN110273734A (en) * | 2019-07-25 | 2019-09-24 | 无锡威孚力达催化净化器有限责任公司 | A kind of bidirectional rotational flow cartridge type urea mixing device |
| CN110469388A (en) * | 2019-08-26 | 2019-11-19 | 凯龙高科技股份有限公司 | A kind of cartridge type compact mixer for diesel engine vent gas processing |
| CN110725733A (en) * | 2019-11-28 | 2020-01-24 | 广西玉柴机器股份有限公司 | Urea mixer of engine |
| CN212154908U (en) * | 2020-03-28 | 2020-12-15 | 无锡威孚力达催化净化器有限责任公司 | Shunting rotating urea mixing device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927603A (en) * | 2020-08-19 | 2020-11-13 | 无锡威孚力达催化净化器有限责任公司 | Barrel type transverse post-treatment urea mixing device |
| CN111927603B (en) * | 2020-08-19 | 2022-05-20 | 无锡威孚力达催化净化器有限责任公司 | Cylinder type transverse post-treatment urea mixing device |
| CN114382571A (en) * | 2022-01-27 | 2022-04-22 | 无锡威孚力达催化净化器有限责任公司 | Layering crushing urea mixing device |
| CN114294082A (en) * | 2022-02-07 | 2022-04-08 | 无锡威孚力达催化净化器有限责任公司 | High-efficient blender device of exhaust aftertreatment |
| CN114278417A (en) * | 2022-02-09 | 2022-04-05 | 无锡威孚力达催化净化器有限责任公司 | Exhaust aftertreatment urea mixing arrangement |
| CN114278417B (en) * | 2022-02-09 | 2023-03-14 | 无锡威孚力达催化净化器有限责任公司 | Exhaust aftertreatment urea mixing arrangement |
| CN115030803A (en) * | 2022-06-28 | 2022-09-09 | 潍柴动力股份有限公司 | Mixer and diesel engine |
| CN115030803B (en) * | 2022-06-28 | 2023-12-15 | 潍柴动力股份有限公司 | Mixer and diesel engine |
| CN115217590A (en) * | 2022-07-27 | 2022-10-21 | 无锡威孚力达催化净化器有限责任公司 | Urea mixing arrangement that two-way whirl is strengthened |
| CN115217590B (en) * | 2022-07-27 | 2024-02-02 | 无锡威孚力达催化净化器有限责任公司 | Urea mixing arrangement that two-way whirl was strengthened |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111237036A (en) | Shunting rotating urea mixing device | |
| CN212154908U (en) | Shunting rotating urea mixing device | |
| CN113790092B (en) | Double-vortex flow type urea mixing device | |
| CN113586212B (en) | Mixing device with multi-cyclone structure | |
| CN213175779U (en) | Chassis type SCR purifier and axial injection urea mixing device thereof | |
| CN110748402B (en) | U-shaped post-processor urea mixing device | |
| CN111271166A (en) | Compact box-type post-processor and urea mixer thereof | |
| CN110735693B (en) | Urea mixer for exhaust aftertreatment | |
| CN111156072B (en) | Tail gas aftertreatment mixing arrangement | |
| CN212898661U (en) | Urea mixing device and chassis type postprocessor | |
| CN211500761U (en) | U-shaped post-processor urea mixing device | |
| CN112502814A (en) | Vehicle aftertreatment SCR mixer | |
| CN111271161A (en) | Half slot hole tubular urea mixing arrangement | |
| CN114542248A (en) | SCR system and engine | |
| CN211975120U (en) | Half slot hole tubular urea mixing arrangement | |
| CN210317451U (en) | Tail gas aftertreatment device | |
| CN210317450U (en) | Tail gas aftertreatment device | |
| CN109826697B (en) | Swirl device for diesel engine emission aftertreatment | |
| CN212690150U (en) | SDPF tightly-coupled U-shaped postprocessor and urea mixing device thereof | |
| CN217233627U (en) | U-shaped post-treatment urea mixing device | |
| CN213743605U (en) | Vehicle aftertreatment SCR mixer | |
| CN210564724U (en) | Bidirectional rotational flow cylinder type urea mixing device | |
| CN212690148U (en) | A simplify urea mixing arrangement for U type platform | |
| CN211975132U (en) | Compact box-type post-processor and urea mixer thereof | |
| CN213360218U (en) | Mixer of tail gas aftertreatment system |
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 |