CN205190013U - SCR aftertreatment hybrid chamber - Google Patents
SCR aftertreatment hybrid chamber Download PDFInfo
- Publication number
- CN205190013U CN205190013U CN201520989607.7U CN201520989607U CN205190013U CN 205190013 U CN205190013 U CN 205190013U CN 201520989607 U CN201520989607 U CN 201520989607U CN 205190013 U CN205190013 U CN 205190013U
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- cavity
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- mixing chamber
- scr
- dividing plate
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Abstract
The utility model relates to a SCR aftertreatment hybrid chamber, including the cavity, the cavity middle part is provided with the dead lever, is provided with the baffle in the cavity, and the baffle is divided into first cavity and second cavity with the cavity, uses the dead lever to center on as the center in the first cavity and is provided with helical baffles, is provided with the air inlet on the cavity, is provided with the urea nozzle on the cavity. The utility model discloses simple structure, the design is compact, convenient to use, the mix that the curl can increase the ammonia fog is cut apart with return circuit gaseous in the cavity to setting up of spiral partition plate, makes the mist every nook and cranny in the cavity of flowing through, and ammonia the jet ammonia and spiral partition plate along tangential direction that go out, and it is more abundant to make tail gas and ammonia mix, is favorable to the processing of tail gas.
Description
Technical field
The utility model relates to a kind of SCR reprocessing mixing chamber, belongs to tail gas treatment system of diesel engine equipment technical field.
Background technique
Along with the increasingly stringent of diesel engine emissions regulations, exhaust aftertreatment technology is the technical measures that must adopt.And SCR can meet state IV and state V emission standard, the basic principle of SCR sprays in outlet pipe after being atomized by the aqueous solution of urea of 32.5% concentration by urea injection system (being commonly called as urea pump) to mix with motor exhaust, and aqueous solution of urea generates ammonia (NH through pyrolysis and hydrolysis reaction
3), under the effect of catalyzer, the oxynitrides be harmful in diesel engine vent gas (NOx) is converted into harmless nitrogen (N by ammonia
2) and water, the top priority of motor exhaust treatment technology SCR route makes tail gas and the biochemical reaction of the effective hybrid concurrency of ammonia mist, ensures sufficient temp before entering catalyzer simultaneously.
Summary of the invention
The purpose of this utility model is shorter in order to solve ammonia and tail gas mixed path in existing SCR process tail gas process, undercompounding affects the problem of vent gas treatment, provide a kind of structure simple, the SCR reprocessing mixing chamber that can increase ammonia and tail gas mixed path compact to design.
The utility model adopts following technological scheme: a kind of SCR reprocessing mixing chamber, comprise cavity, fixing rod is provided with in the middle part of described cavity, dividing plate is provided with in described cavity, cavity is divided into the first cavity and the second cavity by described dividing plate, in described first cavity centered by fixing rod around being provided with helical baffle, described cavity is provided with suction port, described cavity is provided with urea nozzle.
Further, one end of described cavity is provided with end cap.
Further, the ammonia that ejects of described urea nozzle is identical with the tangent direction of helical baffle.
Further, described cavity is tubular.
Further, described dividing plate is provided with some apertures.
Further, described suction port is axial or laterally disposed on cavity.
Further, described cavity is provided with temperature transducer for measuring the temperature of mixed gas in cavity.
The utility model structure is simple, compact to design, easy to use, the loop of gas in cavity is divided into helical can increase the mixing of ammonia mist by arranging of helical baffle plates, mixed gas is made to flow through every nook and cranny in cavity, and the ammonia that goes out of ammonia nozzle ejection and helical baffle plates are tangentially, tail gas mixed with ammonia more abundant, be conducive to the process of tail gas.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model suction port is axially arranged.
Fig. 2 is the laterally disposed structural representation of suction port of the present utility model.
Fig. 3 is internal structure schematic diagram of the present utility model.
Reference character: cavity 1, first cavity 2, second cavity 3, suction port 4, end cap 5, dividing plate 6, helical baffle 7, fixing rod 8, urea nozzle 9, temperature transducer 10.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1-Figure 3, a kind of SCR reprocessing mixing chamber, comprise cavity 1, cavity 1 is tubular, fixing rod 8 is provided with in the middle part of cavity 1, dividing plate 6 is provided with in cavity 1, cavity is divided into the first cavity 2 and the second cavity 3 by dividing plate 6, dividing plate 6 is provided with some apertures, in first cavity 2 centered by fixing rod 8 around being provided with helical baffle 7, cavity is provided with suction port 4, cavity 1 is provided with urea nozzle 9, the ammonia that urea nozzle spray 9 shoots out is identical with the tangent direction of helical baffle 7, suction port 4 is axially set on cavity, cavity 1 is provided with temperature transducer 10 for measuring the temperature of mixed gas in cavity.
A kind of SCR reprocessing mixing chamber, comprise cavity 1, cavity 1 is tubular, fixing rod 8 is provided with in the middle part of cavity 1, dividing plate 6 is provided with in cavity 1, cavity is divided into the first cavity 2 and the second cavity 3 by dividing plate 6, dividing plate 6 is provided with some apertures, in first cavity 2 centered by fixing rod 8 around being provided with helical baffle 7, cavity 1 is provided with suction port 4, cavity 1 is provided with urea nozzle 9, the ammonia that urea nozzle 9 ejects is identical with the tangent direction of helical baffle 7, suction port 4 is laterally disposed on cavity 1, cavity 1 is provided with temperature transducer 10 for measuring the temperature of mixed gas in cavity.
Using method: the suction port 4 of cavity 1 is connected with the outlet pipe of motor car engine, the tail gas of motor car engine enters in the first cavity 2 by suction port 4, urea to be entered in cavity along the tangent direction of helical baffle 7 by urea nozzle 9 and mixes with tail gas, the path of mixed gas is divided into helical by helical baffle 7, increase the path length flowed through of mixed gas, enable mixed gas fully mixing in the first cavity 2, dividing plate 6 is provided with some apertures, mixed gas enters in the second cavity 3 through dividing plate 6, wait for entering in catalyst carrier in the second cavity 3 and react, temperature transducer 10 on cavity 1 is for measuring the temperature of mixed gas in cavity, make it to maintain optimum temperature and enter catalyst carrier, be conducive to fully carrying out of reaction.
Claims (7)
1. a SCR reprocessing mixing chamber, it is characterized in that: comprise cavity (1), described cavity (1) middle part is provided with fixing rod (8), dividing plate (6) is provided with in described cavity (1), cavity is divided into the first cavity (2) and the second cavity (3) by described dividing plate (6), in described first cavity (2) centered by fixing rod (8) around being provided with helical baffle (7), described cavity (1) is provided with suction port (4), described cavity (1) is provided with urea nozzle (9).
2. SCR reprocessing mixing chamber as claimed in claim 1, is characterized in that: one end of described cavity (1) is provided with end cap (5).
3. SCR reprocessing mixing chamber as claimed in claim 1, is characterized in that: the ammonia that described urea nozzle (9) ejects is identical with the tangent direction of helical baffle (7).
4. SCR reprocessing mixing chamber as claimed in claim 1, is characterized in that: described cavity (1) is tubular.
5. SCR reprocessing mixing chamber as claimed in claim 1, is characterized in that: (6) are provided with some apertures with described dividing plate.
6. SCR reprocessing mixing chamber as claimed in claim 1, is characterized in that: described suction port (4) is axial or laterally disposed on cavity (1).
7. SCR reprocessing mixing chamber as claimed in claim 1, is characterized in that: described cavity (1) is provided with temperature transducer (10) for measuring the temperature of mixed gas in cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520989607.7U CN205190013U (en) | 2015-12-02 | 2015-12-02 | SCR aftertreatment hybrid chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520989607.7U CN205190013U (en) | 2015-12-02 | 2015-12-02 | SCR aftertreatment hybrid chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190013U true CN205190013U (en) | 2016-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520989607.7U Active CN205190013U (en) | 2015-12-02 | 2015-12-02 | SCR aftertreatment hybrid chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190013U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065093A (en) * | 2015-08-10 | 2015-11-18 | 潍柴动力股份有限公司 | SCR system and mixer thereof |
| CN106285863A (en) * | 2016-10-18 | 2017-01-04 | 南京依柯卡特排放技术股份有限公司 | A kind of diesel vehicle carbamide Double helix binary vortices SCR blender |
| CN106368780A (en) * | 2016-08-29 | 2017-02-01 | 无锡威孚力达催化净化器有限责任公司 | Exhaust gas aftertreatment assembly for non-road barrel type integrated injection diesel engine |
| CN107165705A (en) * | 2017-07-27 | 2017-09-15 | 天纳克（苏州）排放系统有限公司 | Engine exhaust post-processes mixing arrangement and its after-treatment device and application |
| CN113186518A (en) * | 2021-04-29 | 2021-07-30 | 河南芯钻新材料有限公司 | Gas mixing device |
-
2015
- 2015-12-02 CN CN201520989607.7U patent/CN205190013U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065093A (en) * | 2015-08-10 | 2015-11-18 | 潍柴动力股份有限公司 | SCR system and mixer thereof |
| CN105065093B (en) * | 2015-08-10 | 2017-11-10 | 潍柴动力股份有限公司 | A kind of SCR system and its blender |
| CN106368780A (en) * | 2016-08-29 | 2017-02-01 | 无锡威孚力达催化净化器有限责任公司 | Exhaust gas aftertreatment assembly for non-road barrel type integrated injection diesel engine |
| CN106285863A (en) * | 2016-10-18 | 2017-01-04 | 南京依柯卡特排放技术股份有限公司 | A kind of diesel vehicle carbamide Double helix binary vortices SCR blender |
| CN106285863B (en) * | 2016-10-18 | 2018-11-13 | 南京依柯卡特排放技术股份有限公司 | A kind of diesel vehicle urea double helix binary vortices SCR mixers |
| CN107165705A (en) * | 2017-07-27 | 2017-09-15 | 天纳克（苏州）排放系统有限公司 | Engine exhaust post-processes mixing arrangement and its after-treatment device and application |
| CN113186518A (en) * | 2021-04-29 | 2021-07-30 | 河南芯钻新材料有限公司 | Gas mixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |