CN113586212B - Mixing device with multi-cyclone structure - Google Patents

Mixing device with multi-cyclone structure Download PDF

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Publication number
CN113586212B
CN113586212B CN202111080303.5A CN202111080303A CN113586212B CN 113586212 B CN113586212 B CN 113586212B CN 202111080303 A CN202111080303 A CN 202111080303A CN 113586212 B CN113586212 B CN 113586212B
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China
Prior art keywords
cyclone
plate
swirl
barrel
fins
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Active
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CN202111080303.5A
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Chinese (zh)
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CN113586212A (en
Inventor
张旭
陈增响
付细平
何伟娇
周稳超
陆超俊
张磊
周磊
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Wuxi Weifu Lida Catalytic Converter Co Ltd
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Wuxi Weifu Lida Catalytic Converter Co Ltd
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Publication of CN113586212A publication Critical patent/CN113586212A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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

Abstract

The invention belongs to the technical field of diesel engine tail gas aftertreatment, and particularly relates to a mixing device with a multi-cyclone structure, which comprises a barrel with openings at two ends and a nozzle base arranged on the side wall of the barrel, wherein a cyclone structure is arranged in the barrel, the cyclone structure comprises an upper crushing plate, a lower crushing pore plate, a baffle, a cyclone tube and a cyclone plate, one end of the cyclone tube is connected to the baffle, the other end of the cyclone tube is connected to the cyclone plate, the baffle is arranged at one end of the barrel, the cyclone plate is arranged at the other end of the barrel, the upper crushing plate and the lower crushing pore plate are arranged in the barrel at the position of the nozzle base, the lower ends of the upper crushing plate and the lower crushing pore plate are connected to the cyclone tube, and the left sides of the upper crushing plate and the lower crushing pore plate are fixed on the baffle. The mixing device provided by the invention has the advantages that the urea distribution uniformity is good, the urea is not easy to crystallize, the urea can be uniformly distributed on the end surface of the SCR carrier, the exhaust gas and the ammonia gas are uniformly mixed, and the SCR can work efficiently and stably.

Description

Mixing device with multi-cyclone structure
Technical Field
The invention belongs to the technical field of diesel engine tail gas aftertreatment, and particularly relates to a mixing device with a multi-cyclone structure.
Background
At present, as the national emission standard of diesel vehicle tail gas pollutants is developed to the sixth European stage, stricter emission standards have stricter definitions on tail gas pollutants. The SCR (selective catalytic reduction) technology has become the first choice for various large main engine plants in China. The principle of the SCR technology is to utilize NH generated by urea decomposition 3 With NO in the presence of a catalyst X Reaction to produce N 2 Thereby reducing NO in the exhaust gas X And treating the tail gas to meet the emission standard of Europe II.
The mixer is usually arranged before the SCR, and the DOC and the DPF are arranged at the rear end, namely a DOC-DPF-mixer-SCR series structure is formed. Exhaust gas is discharged into the atmosphere from DOC → DPF → mixer → SCR. The main effect of blender is let exhaust and urea granule homogeneous mixing, breaks into littleer urea granule with urea nozzle spun urea aqueous solution, prevents urea aqueous solution crystallization, and the conversion efficiency of SCR is improved to the even SCR carrier terminal surface of taking to of atomizing ammonia simultaneously. How to reduce the low-temperature crystallization of urea and evenly bring ammonia to the end face of an SCR carrier becomes a key link in the SCR technology. The existing structure has the problems that urea is easy to crystallize, ammonia gas is not uniformly mixed, the exhaust back pressure of the mixer structure is overlarge, the size of the mixer is overlarge and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a mixing device with a multi-cyclone structure. The mixing device provided by the invention has the advantages that the urea distribution uniformity is good, the urea is not easy to crystallize, the urea can be uniformly distributed on the end surface of the SCR carrier, the exhaust gas and the ammonia gas are uniformly mixed, and the SCR can work efficiently and stably. Meanwhile, the size of the hybrid structure is small, and the hybrid structure meets the strict boundary requirement of the whole vehicle on the packaging structure.
In order to achieve the technical purpose, the embodiment of the invention adopts the technical scheme that:
the utility model provides a mixing arrangement of many whirl structures, includes the barrel, the both ends opening of barrel is provided with the nozzle base on its lateral wall, the inside whirl structure that is provided with of barrel, the whirl structure includes crushing plate, broken orifice plate, baffle, cyclone tube and cyclone plate down, the one end of cyclone tube is connected on the baffle, and the other end is connected on the cyclone plate, the baffle sets up the inlet end of barrel, the cyclone plate sets up the end of giving vent to anger of barrel, go up crushing plate and broken orifice plate setting down inside the barrel of nozzle base position, and the lower extreme of going up crushing plate and broken orifice plate down all connects on the cyclone tube, and the left side is all fixed on the baffle.
Furthermore, the air inlet end of the cylinder body is connected with the DOC-DPF carrier assembly section, the air outlet end of the cylinder body is connected with the SCR carrier section, and the diameter of the cylinder body is consistent with the cylinder body diameters of the front DOC-DPF carrier assembly section and the rear SCR carrier section.
Furthermore, the upper crushing plate is provided with flanging blades and an opening, the lower crushing hole plate is provided with crushing holes, and the aperture of each crushing hole is smaller than that of the opening.
Further, the whirl board is whole to be the loudspeaker form to inside arch, be provided with interior whirl fin and outer whirl fin on the whirl board, interior whirl fin is surrounded the inside of whirl pipe, outer whirl fin is located the outside of whirl pipe.
Furthermore, a plurality of swirl fins are arranged on the swirl tube, and the swirl fins are formed by inward flanging of the swirl tube body from the opening.
Furthermore, the inner swirl fins are formed by inward flanging of the swirl plate body from the inner opening, the outer swirl fins are formed by inward flanging of the swirl plate body from the outer opening, and the size of the outer swirl fins is larger than that of the inner swirl fins.
Furthermore, the inner swirl fins and the outer swirl fins are arranged around the center of the swirl plate in an annular shape.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1) The mixer disclosed by the invention adopts a multi-cyclone structure, so that the ammonia mixing can be effectively improved.
2) The mixer is provided with the multilayer plate crushing structure, so that the urea crystallization risk can be reduced.
3) The air flow direction of the mixer is opposite to the urea injection direction, so that the crystallization cannot be deposited and the crystallization risk is low.
4) The tail end of the mixer is provided with the rectifying plate, so that the mixed gas is uniformly distributed on the front end face of the SCR.
Drawings
FIG. 1 is a cross-sectional view of a multi-swirl structure mixer of the present invention.
Fig. 2 is an exploded view of the multiple swirl structure mixer of the present invention.
FIG. 3 is a schematic view of the structure of the air inlet end of the mixer with multi-cyclone structure.
FIG. 4 is an isometric view of the multi-swirl structure mixer of the invention.
FIG. 5 is a gas flow diagram of the multi-swirl structure mixer of the present invention.
Description of reference numerals: 1-a cylinder body; 2-a nozzle base; 3-upper crushing plate; 4-lower crushing pore plate; 5-a baffle plate; 6-cyclone tube; 7-a swirl plate; 31-flanging blades; 32-opening holes; 41-breaking holes; 61-swirl fins; 71-inner swirl fins; 72-inner open pore; 73-outer swirl fins; 74-outer opening.
Detailed Description
In the description of the present invention, it is to be understood that the positional or orientational relationships indicated by the directional terms such as "inner, outer", "upper, lower", "left, right", etc., are generally based on the positional or orientational relationships shown in the drawings and are only for convenience of description and simplicity of description, and in the case of not being described to the contrary, these directional terms are not intended to indicate and imply that the referenced device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example 1
As shown in fig. 1-4, a mixing device with multiple rotational flow structures comprises a barrel 1, wherein the barrel 1 is open at two ends, a nozzle base 2 is arranged on the side wall of the barrel 1, a rotational flow structure is arranged inside the barrel 1, the rotational flow structure comprises an upper crushing plate 3, a lower crushing hole plate 4, a baffle plate 5, a rotational flow pipe 6 and a rotational flow plate 7, one end of the rotational flow pipe 6 is connected to the baffle plate 5, the other end of the rotational flow pipe is connected to the rotational flow plate 7, the baffle plate 5 is arranged at the air inlet end of the barrel 1, the rotational flow plate 7 is arranged at the air outlet end of the barrel 1, the upper crushing plate 3 and the lower crushing hole plate 4 are arranged inside the barrel 1 at the position of the nozzle base 2, the lower ends of the upper crushing plate 3 and the lower crushing hole plate 4 are both connected to the rotational flow pipe 6, and the left side of the upper crushing hole plate 3 and the lower crushing hole plate 4 are both fixed to the baffle plate 5.
The upper crushing plate 3 is close to the nozzle base 2, the lower crushing pore plate 4 is far away from the nozzle base 2, the upper crushing plate 3 and the lower crushing pore plate 4 are arranged at an included angle of 45-75 degrees relative to the horizontal plane, and the upper crushing plate 3 and the lower crushing pore plate 4 can be arranged at a certain included angle or in parallel as long as urea particles sprayed out from the nozzles can mostly loop through the upper crushing plate 3 and the lower crushing pore plate 4.
The diameter of the crushing hole 41 is smaller than that of the opening 32, so that the upper crushing plate 3 and the lower crushing plate 4 act simultaneously to prevent urea from flowing backwards to the nozzle base and the nozzle.
The baffle 5 can both restrict the airflow and fix the swirl tube 6.
The nozzle base 1 is mainly used for mounting a nozzle which can provide atomized urea particles for the mixer to reduce NOx.
The air inlet end of the cylinder body 1 is connected with the DOC-DPF carrier assembly section, the air outlet end of the cylinder body 1 is connected with the SCR carrier section, and the diameter of the cylinder body 1 is consistent with the cylinder body diameters of the front DOC-DPF carrier assembly section and the rear SCR carrier section or has smaller deviation.
The upper crushing plate 3 is provided with flanging blades 31 and an opening 32, the lower crushing hole plate 4 is provided with crushing holes 41, and the aperture of each crushing hole 41 is smaller than that of the opening 32. The flanging blade 31 can play a role in crushing urea particles and providing disturbed airflow, and can effectively reduce the risk of urea crystallization. The lower crushing orifice 4 is mainly used for further crushing urea particles and reducing the risk of urea crystallization.
Spiral-flow plate 7 is whole to be the loudspeaker form to inside arch, be provided with interior whirl fin 71 and outer whirl fin 73 on spiral-flow plate 7, interior whirl fin 71 is surrounded spiral-flow tube 6's inside, outer whirl fin 73 is located spiral-flow tube 6's outside.
The cyclone tube 6 is provided with a plurality of cyclone fins 61, and the cyclone tube body is flanged inwards from the opening of the cyclone tube 61. The swirl fins 61 on the swirl tube 6 are arranged inwards to provide an airflow which rotates anticlockwise for the airflow inside the swirl tube 6, the atomized urea particles sprayed by the nozzle rotate clockwise after entering the mixing device, the direction of the airflow is opposite to that of the urea, and therefore mixing of the urea particles and the airflow is facilitated, and meanwhile, the urea is not deposited at the lowest point of the mixing device.
The inner swirl fins 71 are formed by inward flanging of the swirl plate body from the inner opening 72, the inner opening 72 can play a role in adjusting the backpressure of the mixing device, and the backpressure is adjusted by adjusting the number and the area of the openings. The outer swirl fins 73 are formed by inward flanging of the swirl plate body from the outer opening 74, and the size of the outer swirl fins 73 is larger than that of the inner swirl fins 71.
The inner swirl fins 71 and the outer swirl fins 73 are both annularly arranged around the center of the swirl plate 7.
When the multi-cyclone-structure mixing device works, exhaust flows into the multi-cyclone-structure mixing device from the left air inlet end after passing through a preceding-stage structure DOC-DPF carrier assembly, airflow firstly enters a space surrounded by a cyclone tube 6 and a cyclone plate 7, inner cyclone fins 7-1 arranged on the cyclone plate 7 can play a role of rotating airflow, part of the rotating airflow flows out of the mixing structure through inner openings 7-2, the rest of the airflow enters a space surrounded by the cyclone tube 6, a barrel body 2 and the cyclone plate 7 together through the openings on the cyclone tube 6, the cyclone fins 61 on the cyclone tube 6 can play a role of rotating airflow, the airflow is mixed with urea particles entering the barrel body 1 through a urea nozzle at the position, then the mixed airflow flows out through outer openings 74 on the cyclone plate 7, and the outer cyclone fins 73 are arranged to further play a role of rotating airflow. Through cyclone tube 6, interior whirl fin 71 and outer whirl fin 73, the mixture of urea and air current is more abundant, and rotatory air current can increase the time of urea pyrolysis, fully improves the efficiency of pyrolysis, promotes the ammonia and mixes the effect.
FIG. 5 is a gas flow diagram of the mixing device with multi-cyclone structure of the present invention, which is used in an exhaust treatment package assembly, wherein the upper stage of the mixing device is connected with a DOC-DPF carrier assembly section, and the rear stage is connected with an SCR carrier section. The structure is mainly used for purifying NOx in tail gas, exhaust airflow flows into the mixing device from the left side, passes through the inside of the mixing device, and flows out from the right side.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (6)

1. The mixing device with the multi-cyclone structure comprises a barrel (1), and is characterized in that two ends of the barrel (1) are open, a nozzle base (2) is arranged on the side wall of the barrel, a cyclone structure is arranged in the barrel (1), the cyclone structure comprises an upper crushing plate (3), a lower crushing hole plate (4), a baffle (5), a cyclone tube (6) and a cyclone plate (7), one end of the cyclone tube (6) is connected to the baffle (5), the other end of the cyclone tube is connected to the cyclone plate (7), the baffle (5) is arranged at the air inlet end of the barrel (1), the cyclone plate (7) is arranged at the air outlet end of the barrel (1), the upper crushing plate (3) and the lower crushing hole plate (4) are arranged in the barrel (1) at the position of the nozzle base (2), the lower ends of the upper crushing plate (3) and the lower crushing hole plate (4) are connected to the cyclone tube (6), and the left sides of the upper crushing hole plate and the lower crushing hole plate are fixed to the baffle (5);
the cyclone plate (7) is provided with inner cyclone fins (71) and outer cyclone fins (73), the inner cyclone fins (71) are enclosed inside the cyclone tube (6), and the outer cyclone fins (73) are positioned outside the cyclone tube (6);
the inner swirl fin (71) is formed by inward flanging of the swirl plate body from the inner opening (72), the outer swirl fin (73) is formed by inward flanging of the swirl plate body from the outer opening (74), and the size of the outer swirl fin (73) is larger than that of the inner swirl fin (71).
2. The mixing device of a multi-cyclone structure according to claim 1, wherein the inlet end of the cylinder (1) is connected with a DOC-DPF carrier assembly section, the outlet end of the cylinder is connected with an SCR carrier section, and the diameter of the cylinder (1) is consistent with the cylinder diameters of a front DOC-DPF carrier assembly section and a rear SCR carrier section.
3. The mixing device with multi-cyclone structure according to claim 1, wherein the upper breaker plate (3) is provided with flanging blades (31) and openings (32), the lower breaker plate (4) is provided with breaker holes (41), and the diameter of the breaker holes (41) is smaller than that of the openings (32).
4. Mixing device with a multi-swirl structure according to claim 1, characterised in that the swirl plate (7) is integrally flared towards the inside.
5. The mixing device with the multi-cyclone structure is characterized in that a plurality of cyclone fins (61) are arranged on the cyclone tube (6), and the cyclone fins (61) are formed by inward flanging of the cyclone tube body from an opening.
6. Mixing apparatus of multi-swirl structure according to claim 1, characterised in that the inner swirl fins (71) and outer swirl fins (73) are each arranged annularly around the centre of the swirl plate (7).
CN202111080303.5A 2021-09-15 2021-09-15 Mixing device with multi-cyclone structure Active CN113586212B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115111030A (en) * 2021-12-16 2022-09-27 长城汽车股份有限公司 SCR tail gas aftertreatment hybrid mechanism, SCR tail gas aftertreatment system and vehicle
CN114483263B (en) * 2022-01-13 2023-08-04 无锡威孚力达催化净化器有限责任公司 Mixer for exhaust aftertreatment system
CN114263519B (en) * 2022-01-28 2024-04-19 无锡威孚力达催化净化器有限责任公司 Mixer for exhaust aftertreatment system
CN115030803B (en) * 2022-06-28 2023-12-15 潍柴动力股份有限公司 Mixer and diesel engine
CN115217591B (en) * 2022-07-27 2023-07-04 无锡威孚力达催化净化器有限责任公司 Urea mixing device capable of being crushed for multiple times and controllable in rotational flow

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209637853U (en) * 2019-03-11 2019-11-15 无锡威孚力达催化净化器有限责任公司 Cartridge type cyclone mixer
CN110735693A (en) * 2019-11-25 2020-01-31 无锡威孚力达催化净化器有限责任公司 Urea mixer for exhaust gas aftertreatment

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007020812B4 (en) * 2007-05-04 2010-01-14 Audi Ag Apparatus and method for the addition of fluid pollutant-reducing media in an exhaust passage of an internal combustion engine
JP2012047119A (en) * 2010-08-27 2012-03-08 Mitsubishi Motors Corp Exhaust emission control device of internal combustion engine
KR101669008B1 (en) * 2015-06-03 2016-10-25 주식회사 덱코 Apparatus for mixing gas of engine device
CN105927316B (en) * 2016-06-13 2018-10-16 南京航空航天大学 A kind of vehicle exhaust double purification device and its course of work
KR101790881B1 (en) * 2016-06-21 2017-10-26 주식회사 현대케피코 Urea Solution Injection Device Integrated With Mixer
CN206987927U (en) * 2017-07-11 2018-02-09 天纳克（苏州）排放系统有限公司 Exhaust aftertreatment mixing arrangement and its encapsulation
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
CN110848007A (en) * 2019-12-19 2020-02-28 无锡亿利环保科技有限公司 Urea mixing device
CN111927602B (en) * 2020-08-18 2022-04-12 无锡威孚力达催化净化器有限责任公司 Mixing device with double cyclone tube cross devices
CN213175779U (en) * 2020-08-18 2021-05-11 无锡威孚力达催化净化器有限责任公司 Chassis type SCR purifier and axial injection urea mixing device thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209637853U (en) * 2019-03-11 2019-11-15 无锡威孚力达催化净化器有限责任公司 Cartridge type cyclone mixer
CN110735693A (en) * 2019-11-25 2020-01-31 无锡威孚力达催化净化器有限责任公司 Urea mixer for exhaust gas aftertreatment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
车用Urea-SCR系统结构参数优化研究;吴里程等;《车用发动机》;20151225(第06期);全文 *

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