CN214196452U - Urea mixing turbulence crushing structure for aftertreatment - Google Patents
Urea mixing turbulence crushing structure for aftertreatment Download PDFInfo
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- CN214196452U CN214196452U CN202120132302.XU CN202120132302U CN214196452U CN 214196452 U CN214196452 U CN 214196452U CN 202120132302 U CN202120132302 U CN 202120132302U CN 214196452 U CN214196452 U CN 214196452U
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- 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
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Abstract
The utility model relates to a urea mixing turbulence crushing structure for aftertreatment, wherein a horn mouth cylinder covers the outer side of a heat-insulating inner layer cylinder, and a front baffle is arranged between the horn mouth cylinder and the heat-insulating inner layer cylinder; a nozzle seat is arranged on the arc-shaped surface of the horn-mouth cylinder through a nozzle seat supporting base; the rotational flow blade pipe is welded with the stainless steel pipe and then radially penetrates through and is welded with the inner-layer cylinder; the spherical plug cover is arranged at one end of the heat-insulation inner side cylinder body; the spoiler is respectively welded with the horn mouth cylinder and the spherical plug cover; the stainless steel winding net is connected in the stainless steel pipe in a brazing mode; and the upper side and the lower side of the stainless steel winding net are respectively provided with a front cross net cover and a rear cross net cover. The utility model discloses not only can guarantee urea and automobile exhaust intensive mixing, have apparent effect to the aspect of anti urea crystallization moreover, solve six aftertreatment urea crystallization problems in diesel engine state.
Description
Technical Field
The utility model belongs to the technical field of automobile-used engine exhaust emission purification technique and energy saving and consumption reduction, especially relate to a broken structure of urea mixed vortex for aftertreatment.
Background
The technical routes of the current national heavy diesel engine are that an oxidation catalytic unit (DOC)/a particle capture unit (DPF)/a selective catalytic reduction conversion unit (SCR) and an ammonia oxidation catalytic unit (ASC) are combined in series, and most of the national five diesel engines only contain the selective catalytic reduction conversion unit (SCR), so that the national six aftertreatment is more complex than the national five mixed structure, and the requirement on urea crystallization resistance is higher.
Disclosure of Invention
The utility model provides a broken structure of urea mixing vortex for aftertreatment, this structure not only can guarantee urea and automobile exhaust intensive mixing, has apparent effect to the aspect of anti urea crystallization moreover, solves six aftertreatment urea crystallization problems in diesel engine state.
The utility model adopts the technical proposal that: a urea mixing turbulence crushing structure for aftertreatment comprises a bell mouth cylinder, a heat preservation inner layer cylinder, a rotational flow blade pipe, a stainless steel winding net, a stainless steel pipe, a nozzle seat, a spherical plug cover and a spoiler; the horn mouth cylinder covers the outer side of the heat-insulation inner-layer cylinder, and a front partition plate is arranged between the horn mouth cylinder and the heat-insulation inner-layer cylinder; a nozzle seat is arranged on the arc-shaped surface of the horn-mouth cylinder through a nozzle seat supporting base; the rotational flow blade pipe is welded with the stainless steel pipe and then radially penetrates through and is welded with the inner-layer cylinder; the spherical plug cover is arranged at one end of the heat-insulation inner side cylinder body; the spoiler is respectively welded with the horn mouth cylinder and the spherical plug cover; the stainless steel winding net is connected in the stainless steel pipe in a brazing mode; and the upper side and the lower side of the stainless steel winding net are respectively provided with a front cross net cover and a rear cross net cover.
Further, the stainless steel winding net is formed by winding a cylindrical stainless steel wire net after wavy indentation.
Further, the front cross net cover and the rear cross net cover are all formed by weaving cylindrical stainless steel wires in a criss-cross mode.
Furthermore, a temperature sensor base and a differential pressure sensor base are arranged on the horn mouth cylinder body.
The utility model discloses the beneficial effect who produces is: the front cross net cover structure adopted by the utility model can integrate urea and tail gas, so that the urea and the tail gas can uniformly pass through the stainless steel winding net structure; compared with the traditional structure, the stainless steel winding structure can increase the contact area and accelerate the evaporation and hydrolysis of urea; the rear cross net cover structure can integrate the air flow passing through the stainless steel winding structure; so that the airflow uniformly flows out of the mixed turbulent flow crushing structure; the SCR front-end flow field uniformity can be improved.
Drawings
FIG. 1 is a schematic view of the mixing structure in general;
FIG. 2 is an exploded schematic view of a hybrid structure;
FIG. 3 is a first schematic exploded view of the hybrid structure;
FIG. 4 is a second schematic exploded view of the interior of the hybrid structure;
FIG. 5 is a first schematic exploded view of the interior of the structure;
FIG. 6 is a schematic diagram of a second exploded view of the interior of the hybrid turbulent flow crushing structure;
FIG. 7 is an overall view of a stainless steel winding net and a stainless steel pipe;
in the figure: 10-a horn mouth cylinder body, 20-a heat preservation inner layer cylinder body, 30-a front partition plate, 40-a rotational flow blade pipe, 50-a stainless steel winding net, 51-a stainless steel pipe, 52-a front cross net cover, 53-a rear cross net cover, 60-a nozzle seat supporting base, 70-a nozzle seat, 80-a spherical plug cover, 90-a spoiler, 100-a temperature sensor base and 110-a differential pressure sensor base.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
The utility model relates to a broken structure of urea mixing vortex for aftertreatment, mixed structure's horn mouth barrel and the cooperation of particle trap rear end hump pipe, rear end and selective catalytic reduction converter front end welding. As shown in fig. 1 to 4, the utility model discloses a horn mouth barrel 10, heat preservation inlayer barrel 20, preceding baffle 30, whirl blade pipe 40, stainless steel winding net 50, stainless steel pipe 51, preceding cross screen panel 52, back cross screen panel 53, nozzle holder support base 60, nozzle holder 70, spherical blanking cover 80, spoiler 90, temperature sensor base 100 and differential pressure sensor base 110. The bell mouth cylinder 10 covers the outer side of the heat-preservation inner-layer cylinder 20; the front baffle 30 is positioned between the bell mouth cylinder 10 and the heat-preservation inner layer cylinder 20 and is welded with the bell mouth cylinder 10 and the heat-preservation inner layer cylinder, and an annular cavity can be formed at the moment; the nozzle holder support base 60 is welded to the nozzle holder 70 and to the flare barrel 10. The swirl vane tube 40 and the brazed stainless steel tube 51 are welded together and then penetrate and are welded with the inner-layer cylinder 20 to form a swirl mixing structure; the spherical plug 80 is welded with the inner-layer cylinder body 20 to form an inner-layer cavity; the spoiler 90 is respectively welded with the bell mouth cylinder 10 and the spherical plugging cover 80, and the stainless steel pipe 51 can be seen from the air outlet direction; the temperature sensor base 100 and the differential pressure sensor base 110 are welded with the bell-mouth cylinder 10 and are positioned at the front end of the integral mixed structure.
As shown in fig. 5 to 7, the stainless steel winding net 50, the stainless steel pipe 51, the front cross mesh enclosure 52 and the rear cross mesh enclosure 53 are combined together by brazing; wherein the front cross mesh enclosure 52 and the rear cross mesh enclosure 53 are respectively disposed at upper and lower sides of the stainless steel winding mesh 50. The stainless steel winding net 50 is formed by winding a cylindrical stainless steel wire net after wavy indentation. The front cross net cover and the rear cross net cover are all formed by weaving cylindrical stainless steel wires in a criss-cross mode.
When in use, the tail gas passes through the particle catcher, passes through the inner-layer cylinder body 20 and then enters the rotational flow vane tube 40; at this time, the urea solution injected from the nozzle holder 70 is mixed. When the mixed gas passes through a cross mesh enclosure in front of the filter screen 52, the mixed gas can uniformly pass through a 50 stainless steel winding mesh; then the mixed gas passes through a 50 stainless steel winding net; the urea atomized liquid can be crushed, evaporated and hydrolyzed into ammonia gas, so that the crystallization risk is lower; the tail gas and ammonia gas (urea after hydrolysis) are mixed in the stainless steel winding net 50 and then enter the front cross net cover 52; then through in the annular structure that horn mouth barrel 10 and heat preservation inlayer barrel 20 formed, because of spoiler 90 blocks, the air current can only upwards detour, can increase the mixing distance of tail gas and ammonia, can make the air current draw close to in the middle of flowing through spherical blanking cover 80, guarantee that SCR front end gas mixture (tail gas and ammonia) can evenly distributed.
It should be noted that the above-mentioned embodiments are illustrative of the technical solutions of the present invention and a disclosure of an application scenario, but not limited thereto, and equivalents of those skilled in the art or other modifications made according to the prior art are all included in the scope of the claims of the present invention as long as they do not exceed the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. The utility model provides a broken structure of urea mixed vortex for aftertreatment which characterized in that: the device comprises a bell mouth cylinder, a heat-preservation inner layer cylinder, a rotational flow blade pipe, a stainless steel winding net, a stainless steel pipe, a nozzle seat, a spherical plug cover and a spoiler; the horn mouth cylinder covers the outer side of the heat-insulation inner-layer cylinder, and a front partition plate is arranged between the horn mouth cylinder and the heat-insulation inner-layer cylinder; a nozzle seat is arranged on the arc-shaped surface of the horn-mouth cylinder through a nozzle seat supporting base; the rotational flow blade pipe is welded with the stainless steel pipe and then radially penetrates through and is welded with the inner-layer cylinder; the spherical plug cover is arranged at one end of the heat-insulation inner side cylinder body; the spoiler is respectively welded with the horn mouth cylinder and the spherical plug cover; the stainless steel winding net is connected in the stainless steel pipe in a brazing mode; and the upper side and the lower side of the stainless steel winding net are respectively provided with a front cross net cover and a rear cross net cover.
2. The urea mixing turbulence breaking structure for post-treatment of claim 1, wherein: the stainless steel winding net is formed by winding a cylindrical stainless steel wire net after wavy indentation.
3. The urea mixing turbulence breaking structure for post-treatment of claim 1, wherein: the front cross net cover and the rear cross net cover are all formed by weaving cylindrical stainless steel wires in a criss-cross mode.
4. The urea mixing turbulence breaking structure for post-treatment of claim 1, wherein: and a temperature sensor base and a differential pressure sensor base are arranged on the horn mouth cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120132302.XU CN214196452U (en) | 2021-01-19 | 2021-01-19 | Urea mixing turbulence crushing structure for aftertreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120132302.XU CN214196452U (en) | 2021-01-19 | 2021-01-19 | Urea mixing turbulence crushing structure for aftertreatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214196452U true CN214196452U (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120132302.XU Active CN214196452U (en) | 2021-01-19 | 2021-01-19 | Urea mixing turbulence crushing structure for aftertreatment |
Country Status (1)
| Country | Link |
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| CN (1) | CN214196452U (en) |
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2021
- 2021-01-19 CN CN202120132302.XU patent/CN214196452U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220823 Address after: 450000 No. 69, 8th Street, economic and Technological Development Zone, Zhengzhou City, Henan Province Patentee after: ZHENGZHOU JINGYIDA AUTO PARTS Co.,Ltd. Address before: No.366, Jingnan 5th Road, 25th Street, Zhengzhou Economic and Technological Development Zone, Henan Province, 450000 Patentee before: ZHENGZHOU JINGYIDA ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |