CN220434861U - High-performance aftertreatment mixer - Google Patents
High-performance aftertreatment mixer Download PDFInfo
- Publication number
- CN220434861U CN220434861U CN202322203163.7U CN202322203163U CN220434861U CN 220434861 U CN220434861 U CN 220434861U CN 202322203163 U CN202322203163 U CN 202322203163U CN 220434861 U CN220434861 U CN 220434861U
- Authority
- CN
- China
- Prior art keywords
- shaped plate
- mixer
- side wall
- arc baffle
- cyclone tube
- 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.)
- Active
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000004202 carbamide Substances 0.000 claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 210000002268 wool Anatomy 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000005219 brazing Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 24
- 238000002347 injection Methods 0.000 abstract description 10
- 239000007924 injection Substances 0.000 abstract description 10
- 238000002425 crystallisation Methods 0.000 abstract description 4
- 230000008025 crystallization Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to the technical field of tail gas aftertreatment, in particular to a high-performance aftertreatment mixer, which is characterized in that mixed ammonia gas is uniformly divided and diffused into an SCR carrier, so that urea crystallization is avoided, the uniformity of the ammonia gas is improved, and the use effect is improved; the device comprises a mixer shell, wherein the top end of the mixer shell is communicated with a diesel engine tail gas discharge pipe; still include injection apparatus, Z-shaped plate, go up arc baffle, lower arc baffle, swirl tube, steel wool and guiding mechanism, the Z-shaped plate is installed on the blender casing inside wall to two cavities about Z-shaped plate middle part divide into the blender casing, go up arc baffle and install on Z-shaped plate top lateral wall, lower arc baffle installs on Z-shaped plate bottom lateral wall, swirl tube installs on the Z-shaped plate to swirl tube left end and left portion cavity in intercommunication, swirl tube right side lateral wall is provided with the air inlet, the air inlet communicates with each other with right portion cavity, blender casing lateral wall is provided with the opening.
Description
Technical Field
The utility model relates to the technical field of tail gas aftertreatment, in particular to a high-performance aftertreatment mixer.
Background
Along with the improvement of the diesel engine technology and the advantages of the diesel automobile engine in many aspects, the exhaust emission of a huge number of diesel engines is more and more serious to the environment, the diesel engines are more and more complicated in structure and the cost is continuously improved in order to achieve the power performance, the emission performance and the economy, so that the exhaust gas purification and post-treatment technology is generated;
the existing diesel engine aftertreatment mixers are complex in structure, urea solution is crushed, evaporated and atomized by using a plurality of crossed metal blades, small crystals are easy to generate in a region where sharp corners and metals are crossed and combined, large crystals are caused to run along with time, even the mixers are blocked, the whole aftertreatment structure is invalid, meanwhile, ammonia is unevenly distributed, the ammonia is discharged from polluted environment along with air flow after being reacted at a position with high ammonia concentration, and NOX conversion efficiency is reduced due to insufficient ammonia after being reacted at a position with low ammonia concentration;
therefore, the structure of the device is added at the front end of the SCR, ammonia gas after volatilizing the urea solution and tail gas exhausted by the engine can be fully mixed in a compact inner space, and the mixed gas can uniformly pass through the SCR carrier.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the high-performance aftertreatment mixer which is used for uniformly dividing and diffusing mixed ammonia gas into the SCR carrier, avoiding the formation of urea crystals, improving the uniformity of ammonia gas and improving the use effect.
The utility model relates to a high-performance aftertreatment mixer, which comprises a mixer shell, wherein the top end of the mixer shell is communicated with a diesel engine exhaust gas discharge pipe; the device comprises a mixer shell, a mixer, a spray device, a Z-shaped plate, an upper arc baffle, a lower arc baffle, a swirl tube, steel wool and a flow guiding mechanism, wherein the Z-shaped plate is arranged on the inner side wall of the mixer shell, the middle part of the Z-shaped plate divides the mixer shell into a left cavity and a right cavity; the tail gas exhausted by the diesel engine enters the right cavity through the top end of the upper arc baffle, the tail gas can only pass through the swirl tube to enter the left cavity due to the blocking of the Z-shaped plate, the upper arc baffle and the lower arc baffle, the tail gas forms spiral airflow under the guide flow of the blades in the swirl tube, urea is sprayed into the swirl tube through the spraying device, urea and the spiral airflow are mixed, the mixed airflow passes through the steel wool to enter the left cavity, when the airflow passes through the steel wool to flow, the mixed airflow is dispersed through more porous structures in the steel wool, meanwhile, due to the higher temperature of the tail gas, the contact area of the mixed airflow and the high temperature is increased, so that urea water drops are crushed and evaporated, uniform mixed ammonia gas is formed, and then the gas is discharged outwards from the bottom end of the upper arc baffle through the guide of the guide mechanism due to the fact that the gas is uniformly split and diffused into the SCR carrier under the guide of the guide mechanism, so that the formation of urea crystallization is avoided, the uniformity of ammonia gas is improved, and the use effect is improved.
Preferably, the flow guiding mechanism comprises a flow guiding plate, a plurality of groups of round holes and two groups of semicircular holes, the flow guiding plate is arranged on the outer side wall of the lower part of the upper arc-shaped baffle, the plurality of groups of round holes are circumferentially equidistant on the flow guiding plate, and the two groups of semicircular holes are respectively arranged at the left side of the middle part of the flow guiding plate in a mirror image mode; when the gas is discharged through the guide plate, the gas is guided through a plurality of groups of round holes and two groups of semicircular holes, so that most of the gas uniformly passes through the middle position of the bottom of the upper arc-shaped baffle plate, the uniformity of the mixed gas is optimized, the gas uniformly passes through the SCR carrier, and the conversion efficiency of NOX is improved.
Preferably, the spraying device comprises a mounting seat, a urea nozzle and a plurality of groups of hexagonal screws, the mounting seat is arranged at the opening of the outer side wall of the mixer shell, the urea nozzle is fixedly connected with the mounting seat through the plurality of groups of hexagonal screws, and the output end of the urea nozzle is communicated with the interior of the cyclone tube; urea is sprayed into the cyclone tube through the urea nozzle, and the operation convenience of urea nozzle installation is improved through arranging the mounting seat and the plurality of groups of hexagon screws.
Preferably, the position of the steel wool is close to the position of the output end of the urea nozzle; the original installation position of the steel wool is installed close to the direction of the output end of the urea nozzle, so that the distance between the steel wool and the output end of the urea nozzle is shortened, the air flow and the ammonia gas are mixed in advance, the current air inlet temperature field is correspondingly improved, and the conversion efficiency of NOX is improved.
Preferably, the steel wool and the cyclone tube are welded and fixed by adopting brazing filler metal; and the welding quality is improved.
Preferably, the upper and lower outer side walls of the Z-shaped plate are respectively provided with a flanging; the connection sealing convenience of the junction of the Z-shaped plate and the inner side wall of the mixer shell is improved.
Compared with the prior art, the utility model has the beneficial effects that: the tail gas exhausted by the diesel engine enters the right cavity through the top end of the upper arc baffle, the tail gas can only pass through the swirl tube to enter the left cavity due to the blocking of the Z-shaped plate, the upper arc baffle and the lower arc baffle, the tail gas forms spiral airflow under the guide flow of the blades in the swirl tube, urea is sprayed into the swirl tube through the spraying device, urea and the spiral airflow are mixed, the mixed airflow passes through the steel wool to enter the left cavity, when the airflow passes through the steel wool to flow, the mixed airflow is dispersed through more porous structures in the steel wool, meanwhile, due to the higher temperature of the tail gas, the contact area of the mixed airflow and the high temperature is increased, so that urea water drops are crushed and evaporated, uniform mixed ammonia gas is formed, and then the gas is discharged outwards from the bottom end of the upper arc baffle through the guide of the guide mechanism due to the fact that the gas is uniformly split and diffused into the SCR carrier under the guide of the guide mechanism, so that the formation of urea crystallization is avoided, the uniformity of ammonia gas is improved, and the use effect is improved.
Drawings
FIG. 1 is a schematic illustration of an axially measured structure of the present utility model;
FIG. 2 is a schematic side view of a partial structure of a swirl tube connected with steel wool or the like;
FIG. 3 is a schematic top view of a baffle and semi-circular holes;
FIG. 4 is a schematic top view of a partial structure of a mixer housing connected to a Z-plate or the like;
the reference numerals in the drawings: 1. a mixer housing; 2. a Z-shaped plate; 3. an upper arc baffle; 4. a lower arc baffle; 5. swirl tube; 6. steel wool; 7. a diversion mechanism; 8. a deflector; 9. a round hole; 10. a semicircular hole; 11. a mounting base; 12. a urea nozzle; 13. a hexagonal screw.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
As shown in fig. 1 to 4, a high performance aftertreatment mixer of the utility model comprises a mixer housing 1, wherein the top end of the mixer housing 1 is communicated with a diesel exhaust gas discharge pipe; the device comprises a mixer shell 1, and is characterized by further comprising an injection device, a Z-shaped plate 2, an upper arc baffle 3, a lower arc baffle 4, a cyclone tube 5, steel wool 6 and a flow guide mechanism 7,Z, wherein the plate 2 is arranged on the inner side wall of the mixer shell 1, the middle part of the Z-shaped plate 2 divides the mixer shell 1 into a left cavity and a right cavity, the upper arc baffle 3 is arranged on the outer side wall of the top end of the Z-shaped plate 2, the lower arc baffle 4 is arranged on the outer side wall of the bottom end of the Z-shaped plate 2, the cyclone tube 5 is arranged on the Z-shaped plate 2, the left end of the cyclone tube 5 is communicated with the inner side of the left cavity, the outer side wall of the right part of the cyclone tube 5 is provided with an air inlet, the air inlet is communicated with the right cavity, the outer side wall of the mixer shell 1 is provided with an opening, the injection device is arranged at the opening of the mixer shell 1, the output end of the injection device is communicated with the right end of the cyclone tube 5, the injection device is used for injecting urea, the steel wool 6 is arranged at the left end of the cyclone tube 5, the flow guide mechanism 7 is arranged at the bottom end of the mixer shell 1, and the flow guide mechanism 7 is used for guiding and delivering gas;
as shown in fig. 3, the flow guiding mechanism 7 comprises a flow guiding plate 8, a plurality of groups of round holes 9 and two groups of semicircular holes 10, the flow guiding plate 8 is arranged on the outer side wall of the lower part of the upper arc-shaped baffle plate 3, the plurality of groups of round holes 9 are circumferentially equidistant on the flow guiding plate 8, and the two groups of semicircular holes 10 are respectively arranged at the left side position in the middle part of the flow guiding plate 8 in a mirror image mode;
in this embodiment, diesel engine exhaust tail gas gets into in the right part cavity through last arc baffle 3 top, because Z-shaped board 2, go up arc baffle 3 and the baffle of arc baffle 4 down to the blocking of tail gas, make tail gas can only pass in the cyclone tube 5 and get into the left part cavity, tail gas forms spiral air current under the blade guide flow in cyclone tube 5, simultaneously spray urea to the cyclone tube 5 inside through injection device, make urea and heliciform air current mix, the air current after mixing passes steel wool 6 and gets into the left part cavity, when the air current passes steel wool 6 and flows, more poroid structures in the steel wool 6 make the mixed air current disperse, simultaneously because tail gas temperature is higher, consequently, increased mixed air current and high temperature area of contact, thereby make urea water droplet aggravate broken evaporation, form even mixed ammonia gas, afterwards, make gas outwards discharge by last arc baffle 3 bottom, because gas is evenly cut apart the diffusion and get into the SCR carrier inside at the guide flow of guiding mechanism 7, therefore, the formation of urea crystallization has been avoided again, the result of use is improved.
Example 2
As shown in fig. 1 to 4, a high performance aftertreatment mixer of the utility model comprises a mixer housing 1, wherein the top end of the mixer housing 1 is communicated with a diesel exhaust gas discharge pipe; the device comprises a mixer shell 1, and is characterized by further comprising an injection device, a Z-shaped plate 2, an upper arc baffle 3, a lower arc baffle 4, a cyclone tube 5, steel wool 6 and a flow guide mechanism 7,Z, wherein the plate 2 is arranged on the inner side wall of the mixer shell 1, the middle part of the Z-shaped plate 2 divides the mixer shell 1 into a left cavity and a right cavity, the upper arc baffle 3 is arranged on the outer side wall of the top end of the Z-shaped plate 2, the lower arc baffle 4 is arranged on the outer side wall of the bottom end of the Z-shaped plate 2, the cyclone tube 5 is arranged on the Z-shaped plate 2, the left end of the cyclone tube 5 is communicated with the inner side of the left cavity, the outer side wall of the right part of the cyclone tube 5 is provided with an air inlet, the air inlet is communicated with the right cavity, the outer side wall of the mixer shell 1 is provided with an opening, the injection device is arranged at the opening of the mixer shell 1, the output end of the injection device is communicated with the right end of the cyclone tube 5, the injection device is used for injecting urea, the steel wool 6 is arranged at the left end of the cyclone tube 5, the flow guide mechanism 7 is arranged at the bottom end of the mixer shell 1, and the flow guide mechanism 7 is used for guiding and delivering gas;
as shown in fig. 3, the flow guiding mechanism 7 comprises a flow guiding plate 8, a plurality of groups of round holes 9 and two groups of semicircular holes 10, the flow guiding plate 8 is arranged on the outer side wall of the lower part of the upper arc-shaped baffle plate 3, the plurality of groups of round holes 9 are circumferentially equidistant on the flow guiding plate 8, and the two groups of semicircular holes 10 are respectively arranged at the left side position in the middle part of the flow guiding plate 8 in a mirror image mode;
as shown in fig. 1, 2 and 4, the spraying device comprises a mounting seat 11, a urea nozzle 12 and a plurality of groups of hexagonal screws 13, wherein the mounting seat 11 is arranged at an opening of the outer side wall of the mixer shell 1, the urea nozzle 12 is fixedly connected with the mounting seat 11 through the plurality of groups of hexagonal screws 13, and the output end of the urea nozzle 12 is communicated with the cyclone tube 5;
as shown in fig. 2, the position of the steel wool 6 is close to the position of the output end of the urea nozzle 12;
as shown in fig. 1 and 2, the steel wool 6 and the cyclone tube 5 are welded and fixed by adopting brazing filler metal, and flanges are respectively arranged at the outer side walls of the upper part and the lower part of the Z-shaped plate 2;
in this embodiment, when gas is discharged through the guide plate 8, the gas is guided through the multiple groups of round holes 9 and the two groups of semicircular holes 10, so that most of the gas uniformly passes through the middle position of the bottom of the upper arc baffle 3, the uniformity of the mixed gas is optimized, the gas uniformly passes through the SCR carrier, the conversion efficiency of NOX is improved, urea is sprayed into the cyclone tube 5 through the urea nozzle 12, the operation convenience of the installation of the urea nozzle 12 is improved through the installation seat 11 and the multiple groups of hexagon screws 13, the installation position of the original steel wool 6 is close to the direction of the output end of the urea nozzle 12, the distance between the steel wool 6 and the output end of the urea nozzle 12 is shortened, the air flow and ammonia are mixed in advance, the current air inlet temperature field is correspondingly improved, and the NOX conversion efficiency is improved.
When the high-performance aftertreatment mixer disclosed by the utility model works, tail gas discharged by a diesel engine enters a right cavity through the top end of an upper arc baffle plate 3, and because the Z-shaped plate 2, the upper arc baffle plate 3 and a lower arc baffle plate 4 block the tail gas, the tail gas can only enter a left cavity through a cyclone tube 5, the tail gas forms spiral airflow under the guide flow of blades in the cyclone tube 5, urea is sprayed into the cyclone tube 5 through a spraying device to mix the urea with the spiral airflow, the mixed airflow passes through steel wool 6 to enter the left cavity, and then the air is discharged outwards from the bottom end of the upper arc baffle plate 3 through the guide flow of a guide mechanism 7, so that the air is uniformly split and diffused into an SCR carrier under the guide flow of the guide mechanism 7.
The main functions realized by the utility model are as follows: when the air flow passes through the steel wool 6 to flow, the more porous structures in the steel wool 6 disperse the mixed air flow, and meanwhile, due to the higher temperature of the tail gas, the contact area of the mixed air flow and the high temperature is increased, so that the urea water droplets are crushed and evaporated to form uniform mixed ammonia gas, and then the gas is discharged outwards from the bottom end of the upper arc baffle plate 3 through the diversion of the diversion mechanism 7, and the gas is uniformly split and diffused into the SCR carrier under the diversion of the diversion mechanism 7.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (7)
1. A high-performance aftertreatment mixer comprises a mixer shell (1), wherein the top end of the mixer shell (1) is communicated with a diesel engine exhaust gas discharge pipe; the urea spraying device is characterized by further comprising a spraying device, a Z-shaped plate (2), an upper arc baffle (3), a lower arc baffle (4) and a cyclone tube (5), wherein the Z-shaped plate (2) is arranged on the inner side wall of the mixer shell (1), the middle part of the Z-shaped plate (2) is divided into a left cavity and a right cavity, the upper arc baffle (3) is arranged on the outer side wall of the top end of the Z-shaped plate (2), the lower arc baffle (4) is arranged on the outer side wall of the bottom end of the Z-shaped plate (2), the cyclone tube (5) is arranged on the Z-shaped plate (2), the left end of the cyclone tube (5) is communicated with the inner side wall of the left cavity, the outer side wall of the right part of the cyclone tube (5) is provided with an air inlet, the air inlet is communicated with the outer side wall of the right cavity, the spraying device is arranged at the opening of the mixer shell (1), the output end of the spraying device is communicated with the right end of the cyclone tube (5), and the spraying device is used for spraying urea.
2. A high performance post-treatment mixer as claimed in claim 1, further comprising steel wool (6) and a guiding mechanism (7), wherein the steel wool (6) is arranged at the left end of the cyclone tube (5), the guiding mechanism (7) is arranged at the bottom end of the mixer housing (1), and the guiding mechanism (7) is used for guiding and conveying the gas.
3. A high-performance aftertreatment mixer according to claim 2, characterized in that the flow guiding mechanism (7) comprises a flow guiding plate (8), a plurality of groups of round holes (9) and two groups of semicircular holes (10), the flow guiding plate (8) is arranged on the outer side wall of the lower part of the upper arc-shaped baffle plate (3), the plurality of groups of round holes (9) are circumferentially equidistant on the flow guiding plate (8), and the two groups of semicircular holes (10) are respectively arranged at the left side of the middle part of the flow guiding plate (8) in a mirror image mode.
4. A high-performance aftertreatment mixer according to claim 2, characterized in that the spraying device comprises a mounting seat (11), a urea nozzle (12) and a plurality of groups of hexagonal screws (13), the mounting seat (11) is arranged at the opening of the outer side wall of the mixer shell (1), the urea nozzle (12) is fixedly connected with the mounting seat (11) through the plurality of groups of hexagonal screws (13), and the output end of the urea nozzle (12) is communicated with the cyclone tube (5).
5. A high performance post-treatment mixer according to claim 2, characterized in that the steel wool (6) is located close to the output end of the urea nozzle (12).
6. A high performance post-treatment mixer according to claim 2, characterized in that the steel wool (6) and the cyclone tube (5) are fixed by brazing filler metal.
7. A high performance post-treatment mixer according to claim 2, wherein the upper and lower outer side walls of the Z-shaped plate (2) are respectively provided with flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322203163.7U CN220434861U (en) | 2023-08-16 | 2023-08-16 | High-performance aftertreatment mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322203163.7U CN220434861U (en) | 2023-08-16 | 2023-08-16 | High-performance aftertreatment mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220434861U true CN220434861U (en) | 2024-02-02 |
Family
ID=89694085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322203163.7U Active CN220434861U (en) | 2023-08-16 | 2023-08-16 | High-performance aftertreatment mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220434861U (en) |
-
2023
- 2023-08-16 CN CN202322203163.7U patent/CN220434861U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111764987B (en) | Post-treatment packaging SCR mixer system and treatment method thereof | |
| CN100504047C (en) | Muffler device with exhaust gas purifying function | |
| WO2018068667A1 (en) | Tail gas after-treatment device | |
| WO2016146015A1 (en) | Mixing tube and exhaust gas treatment device thereof | |
| EP3760846A1 (en) | System for mixing a liquid spray into a gaseous flow and exhaust aftertreatment device comprising same | |
| CN110848004A (en) | Multistage parallel SCR system | |
| CN220434861U (en) | High-performance aftertreatment mixer | |
| CN212744129U (en) | Mixer and exhaust system including same | |
| CN114439581B (en) | Mixer, diesel engine tail gas treatment system and diesel vehicle | |
| CN214741574U (en) | Spiral-flow type mixer for purifying automobile exhaust | |
| CN214788188U (en) | Cyclone fan and SCR mixer | |
| CN212671903U (en) | Efficient mixer for diesel engine aftertreatment | |
| CN111963281B (en) | High-efficient blender of diesel engine aftertreatment | |
| CN213790971U (en) | Offset SCR mixer | |
| CN112459884B (en) | Diesel oil national hexa b structure catalyst converter | |
| CN112459874B (en) | Mixing assembly of urea mixing device | |
| CN213450557U (en) | Mixing chamber subassembly and tail gas aftertreatment encapsulation | |
| CN210889080U (en) | Liquid-gas mixing device | |
| CN211008826U (en) | Multistage parallel SCR system | |
| GB2595019A (en) | Systems and methods for mixing exhaust gas and reductant in an exhaust gas aftertreatment system | |
| CN208057202U (en) | A kind of post-processing air inlet mixing arrangement | |
| CN221032818U (en) | Urea mixing device | |
| CN216841888U (en) | Six mixers in state to small discharge capacity engine | |
| CN213870013U (en) | Volute type urea mixing device | |
| CN220434860U (en) | Low back pressure is aftertreatment blender for road |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |