CN207945006U - Side air inlet spar-type platforms SCR mixing arrangements - Google Patents
Side air inlet spar-type platforms SCR mixing arrangements Download PDFInfo
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- CN207945006U CN207945006U CN201820292700.6U CN201820292700U CN207945006U CN 207945006 U CN207945006 U CN 207945006U CN 201820292700 U CN201820292700 U CN 201820292700U CN 207945006 U CN207945006 U CN 207945006U
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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
- 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 utility model belongs to diesel engine vent gas post-processing technology field, it is related to a kind of side air inlet spar-type platforms SCR mixing arrangements, including outer barrel, end cap is arranged in outer barrel axial direction one end, first partition is arranged in the outer barrel axial direction other end, second partition, air inlet pipe is arranged in outer barrel surface, between end cap and first partition, corresponding to the lower section of air inlet pipe outlet, the first arc spoiler is set, first pair of flow-disturbing tablet is set gradually below first arc spoiler, second arc spoiler, third is to flow-disturbing tablet, the both sides of second arc spoiler are symmetrical arranged second pair of flow-disturbing tablet, first pair of flow-disturbing arc plate is set above the upper end of second pair of flow-disturbing tablet.The mixing arrangement solves existing SCR system and is restricted by mixing distance, tail gas mixes non-uniform problem with ammonia, a kind of simple in structure, compact to design, good mixing effect, the low mixer apparatus of urea crystals risk are provided, which can ensure the work that SCR efficient is stablized.
Description
Technical field
The utility model belongs to diesel engine vent gas post-processing technology field, is related to a kind of side air inlet spar-type platforms SCR mixing
Device.
Background technology
With the reinforcement of people's environmental protection consciousness, and national exhaust gas from diesel vehicle pollutant emission regulation is more tight
Lattice implement exhaust aftertreatment technology and have become inevitable measure.And the domestic NOX processing schemes generally used is SCR technologies.SCR
The principle of technology be by urea injection system will a concentration of 32.5% aqueous solution of urea atomization after spray into exhaust pipe in start
Tail gas mixes, the NH3 generated by pyrolysis and hydrolysis using aqueous solution of urea, under the effect of the catalyst, anti-with NOX
N2 should be generated, to reduce the NOx in exhaust, by vent gas treatment to meeting discharge standard.
Ensure enough temperature in face of SCR carrier ends, and tail gas is made substantially effectively to be mixed with ammonia and then in SCR
It is equably chemically reacted in carrier, is the top priority of motor exhaust treatment technology SCR routes.
Invention content
The utility model is in view of the above-mentioned problems, provide a kind of side air inlet spar-type platforms SCR mixing arrangements, the mixing arrangement solution
Certainly existing SCR system is restricted by mixing distance, and tail gas mixes non-uniform problem with ammonia, provides a kind of simple in structure, design
Compact, good mixing effect, the low mixer apparatus of urea crystals risk, the device can ensure the work that SCR efficient is stablized.
According to the technical solution of the utility model：A kind of side air inlet spar-type platforms SCR mixing arrangements, it is characterised in that：Packet
Outer barrel is included, end cap is arranged in outer barrel axial direction one end, and first partition, second partition is arranged in the outer barrel axial direction other end, outside
Air inlet pipe is arranged in drum surface, the first arc flow-disturbing of lower section setting between end cap and first partition, corresponding to air inlet pipe outlet
Plate, first pair of flow-disturbing tablet, the second arc spoiler, third is set gradually below the first arc spoiler to flow-disturbing tablet,
The both sides of second arc spoiler are symmetrical arranged second pair of flow-disturbing tablet, are arranged first above the upper end of second pair of flow-disturbing tablet
To flow-disturbing arc plate, injection pedestal is set in air inlet pipe, sprays and urea nozzle is installed on pedestal, the first partition is equipped with ventilation
Hole, the centre of gyration of second partition are equipped with punching press circular hole, and several airflow holes, gas are uniformly arranged around punching press circular hole on second partition
The outgassing direction of discharge orifice is parallel to second partition surface.
The first arc spoiler is inverted U-shaped as a further improvement of the utility model, and first pair of flow-disturbing is flat
Plate includes that the upper end of two pieces of flow-disturbing tablet A, two pieces of flow-disturbing tablet A being obliquely installed is respectively placed in the first arc flow-disturbing of U-shaped shape
The lower section of the two side of plate, two pieces of upper ends flow-disturbing tablet A are smaller than lower end spacing.
Second pair of flow-disturbing tablet includes that two pieces of flow-disturbings being obliquely installed are flat as a further improvement of the utility model,
The upper end spacing of plate B, two pieces of flow-disturbing tablet B are more than lower end spacing.
The third includes that two pieces of flow-disturbings being obliquely installed are flat to flow-disturbing tablet as a further improvement of the utility model,
Plate C, the upper end of two pieces of flow-disturbing tablet C are smaller than lower end spacing.
First pair of flow-disturbing arc plate includes two blocks of flow-disturbing arc plates as a further improvement of the utility model, and two pieces are disturbed
The lower end of stream arc plate is located at the top of second pair of flow-disturbing tablet.
It is uniformly arranged as a further improvement of the utility model, around punching press circular hole on the second partition several logical
Hole is both provided with arc convex plate corresponding to each through hole.
The utility model has technical effect that：Airintake direction is arranged vertically with tubular axis direction, urea granules collision
To the shoulder of splitting of arc-shaped partition, fragmentation is on the one hand played, crystallization risk is reduced, on the other hand air velocity is made to increase, it can
The urea granules ejected quickly are taken away, prevent urea crystals from generating；Multistage spoiler is axial arranged side by side, saves axial empty
Between, temperature drop is reduced, keeps entire mixer structure compacter.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is sectional view along A-A in Fig. 1.
Fig. 3 is that the utility model removes the structural schematic diagram after outer barrel.
Specific implementation mode
Specific embodiment of the present utility model is further described below in conjunction with the accompanying drawings.
In Fig. 1 ~ 3, including air inlet pipe 1, end cap 2, first partition 3, venthole 3-1, second partition 4, punching press circular hole 4-1,
Airflow hole 4-2, injection pedestal 5, urea nozzle 6,7, first pairs of flow-disturbing tablets 8 of the first arc spoiler, flow-disturbing tablet A8-1, the
Two 9, second pairs of arc spoiler flow-disturbing tablets 10, flow-disturbing tablet B10-1, first pair of flow-disturbing arc plate 11, third are to flow-disturbing tablet
12, flow-disturbing tablet C12-1 etc..
As shown in Fig. 1 ~ 3, the utility model is a kind of side air inlet spar-type platforms SCR mixing arrangements, including outer barrel 13, institute
State the axial one end setting end cap 2 of outer barrel 13, the axial other end setting first partition 3 of outer barrel 13, second partition 4, outer barrel
Air inlet pipe 1 is arranged in 13 surfaces, is disturbed between end cap 2 and first partition 3, corresponding to lower section the first arc of setting that air inlet pipe 1 exports
The lower section of flowing plate 7, the first arc spoiler 7 sets gradually first pair of flow-disturbing tablet 8, the second arc spoiler 9, third to flow-disturbing
The both sides of tablet 12, the second arc spoiler 9 are symmetrical arranged second pair of flow-disturbing tablet 10, the upper end of second pair of flow-disturbing tablet 10
First pair of flow-disturbing arc plate 11 is arranged in top, and injection pedestal 5 is arranged in air inlet pipe 1, sprays and installs urea nozzle 6 on pedestal 5, described
First partition 3 is equipped with venthole 3-1, and the centre of gyration of second partition 4 is equipped with punching press circular hole 4-1, punching is surrounded on second partition 4
Pressure circular hole 4-1 is uniformly arranged several airflow hole 4-2, and the outgassing direction of airflow hole 4-2 is parallel to 4 surface of second partition.
First arc spoiler 7 is inverted U-shaped, and first pair of flow-disturbing tablet 8 includes two pieces of flow-disturbing tablets being obliquely installed
The upper end of A8-1, two pieces of flow-disturbing tablet A8-1 are respectively placed in the lower section of the two side of the first arc spoiler 7 of U-shaped shape, two pieces
The upper ends flow-disturbing tablet A8-1 are smaller than lower end spacing.
Second pair of flow-disturbing tablet 10 includes two pieces of flow-disturbing tablet B10-1 being obliquely installed, and two pieces of flow-disturbing tablet B10-1's is upper
Spacing is held to be more than lower end spacing.
Third includes two pieces of flow-disturbing tablet C12-1 being obliquely installed to flow-disturbing tablet 12, and two pieces of flow-disturbing tablet C12-1's is upper
End is smaller than lower end spacing.
First pair of flow-disturbing arc plate 11 includes two blocks of flow-disturbing arc plates, and the lower end of two blocks of flow-disturbing arc plates is located at second pair of flow-disturbing and puts down
The top of plate 10.
Several through-holes are uniformly arranged around punching press circular hole 4-1 on second partition 4, arc is both provided with corresponding to each through hole
Shape raised plate.
The course of work of the utility model is as follows：Urea nozzle 6 in the utility model is screwed in injection pedestal 5
On, remaining part is metal plate punching molding, and by being welded.
At work, air-flow is after the entrance of air inlet pipe 1, by the shunting function of the first arc spoiler 7, in symmetrical fashion
Enter in 13 in outer barrel from the left and right sides, by the guide functions of each flow-disturbing tablet, flow-disturbing arc plate, air-flow is in first pair of flow-disturbing
8, second pairs of tablet, 9, second pairs of flow-disturbing tablet flow-disturbing tablet, 10, first pairs of flow-disturbing arc plates 11, third constitute flow-disturbing tablet 12
Space in be sufficiently mixed, form extremely strong water conservancy diversion effect, open up venthole 3-1 in first partition 3, swirling eddy is finally from logical
It is flowed out in stomata 3-1, then by the acceleration of punching press circular hole 4-1, airflow hole 4-2 on second partition 4, air-flow tool out
Have very strong rotates effe, and air velocity also obviously increases, the urea granules which ejects urea nozzle with
Tail gas is sufficiently mixed, and urea granules are ejected in urea nozzle 6 with certain speed, collides the first arc spoiler first
7 split on shoulder, plays fragmentation, is then sufficiently mixed with gas under the action of spoiler at different levels, will finally be sufficiently mixed
Urea granules bring to the front ends SCR, prevent from crystallizing.
Claims (6)
1. a kind of side air inlet spar-type platforms SCR mixing arrangements, it is characterised in that：Including outer barrel（13）, the outer barrel（13）
End cap is arranged in axial one end（2）, outer barrel（13）First partition is arranged in the axial other end（3）, second partition（4）, outer barrel
（13）Air inlet pipe is arranged in surface（1）, end cap（2）With first partition（3）Between, correspond to air inlet pipe（1）The lower section of outlet is arranged
First arc spoiler（7）, the first arc spoiler（7）Lower section set gradually first pair of flow-disturbing tablet（8）, the second arc disturbs
Flowing plate（9）, third is to flow-disturbing tablet（12）, the second arc spoiler（9）Both sides be symmetrical arranged second pair of flow-disturbing tablet（10）,
Second pair of flow-disturbing tablet（10）Upper end above be arranged first pair of flow-disturbing arc plate（11）, air inlet pipe（1）Pedestal is sprayed in upper setting
（5）, spray pedestal（5）Upper installation urea nozzle（6）, the first partition（3）It is equipped with venthole（3-1）, second partition（4）
The centre of gyration be equipped with punching press circular hole（4-1）, second partition（4）It is upper to surround punching press circular hole（4-1）It is uniformly arranged several airflow holes
（4-2）, airflow hole（4-2）Outgassing direction be parallel to second partition（4）Surface.
2. side air inlet spar-type platforms SCR mixing arrangements as described in claim 1, it is characterised in that：The first arc flow-disturbing
Plate（7）To be inverted U-shaped, first pair of flow-disturbing tablet（8）The flow-disturbing tablet A being obliquely installed including two pieces（8-1）, two pieces of flow-disturbings are flat
Plate A（8-1）Upper end be respectively placed in the first arc spoiler of U-shaped shape（7）Two side lower section, two pieces of flow-disturbing tablet A（8-
1）Upper end is smaller than lower end spacing.
3. side air inlet spar-type platforms SCR mixing arrangements as claimed in claim 2, it is characterised in that：Second pair of flow-disturbing is flat
Plate（10）The flow-disturbing tablet B being obliquely installed including two pieces（10-1）, two pieces of flow-disturbing tablet B（10-1）Upper end spacing be more than lower end
Spacing.
4. side air inlet spar-type platforms SCR mixing arrangements as described in claim 1, it is characterised in that：The third is flat to flow-disturbing
Plate（12）The flow-disturbing tablet C being obliquely installed including two pieces（12-1）, two pieces of flow-disturbing tablet C（12-1）Upper end be smaller than lower end
Spacing.
5. side air inlet spar-type platforms SCR mixing arrangements as described in claim 1, it is characterised in that：First pair of flow-disturbing arc
Plate（11）Including two blocks of flow-disturbing arc plates, the lower end of two blocks of flow-disturbing arc plates is located at second pair of flow-disturbing tablet（10）Top.
6. side air inlet spar-type platforms SCR mixing arrangements as described in claim 1, it is characterised in that：The second partition（4）On
Around punching press circular hole（4-1）Several through-holes are uniformly arranged, arc convex plate is both provided with corresponding to each through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820292700.6U CN207945006U (en) | 2018-03-01 | 2018-03-01 | Side air inlet spar-type platforms SCR mixing arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820292700.6U CN207945006U (en) | 2018-03-01 | 2018-03-01 | Side air inlet spar-type platforms SCR mixing arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207945006U true CN207945006U (en) | 2018-10-09 |
Family
ID=63700593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820292700.6U Active CN207945006U (en) | 2018-03-01 | 2018-03-01 | Side air inlet spar-type platforms SCR mixing arrangements |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207945006U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289514A (en) * | 2018-11-28 | 2019-02-01 | 长沙凯天工研院环保服务有限公司 | A kind of SCR denitration flue gas mixer and its system |
| CN109441603A (en) * | 2018-12-27 | 2019-03-08 | 东风商用车有限公司 | The package system between DPF, SCR is occupy in a kind of exhaust aftertreatment |
| CN109550398A (en) * | 2019-01-16 | 2019-04-02 | 北京工大环能科技有限公司 | One kind is for warm type denitrating system in more gas internal-combustion engine flue gases |
| CN111111436A (en) * | 2020-01-16 | 2020-05-08 | 沂州科技有限公司 | Reduce NO in waste gas generated by coke ovenxSCR denitration reactor of content |
| CN111558297A (en) * | 2020-05-12 | 2020-08-21 | 山东交通学院 | Method for reducing exhaust emission of engine |
| CN111577433A (en) * | 2020-05-12 | 2020-08-25 | 山东交通学院 | Engine tail gas treatment device |
| CN113217154A (en) * | 2021-05-26 | 2021-08-06 | 河南柴油机重工有限责任公司 | Mixing device for SCR system |
| CN113339111A (en) * | 2021-06-08 | 2021-09-03 | 中自环保科技股份有限公司 | Urea-SCR mixer of diesel internal combustion engine post-treatment system |
| CN109550398B (en) * | 2019-01-16 | 2024-04-30 | 北京工大环能科技有限公司 | Medium-temperature denitration system for flue gas of multiple gas internal combustion engines |
-
2018
- 2018-03-01 CN CN201820292700.6U patent/CN207945006U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289514B (en) * | 2018-11-28 | 2023-11-17 | 长沙凯天工研院环保服务有限公司 | SCR denitration flue gas blender and system thereof |
| CN109289514A (en) * | 2018-11-28 | 2019-02-01 | 长沙凯天工研院环保服务有限公司 | A kind of SCR denitration flue gas mixer and its system |
| CN109441603A (en) * | 2018-12-27 | 2019-03-08 | 东风商用车有限公司 | The package system between DPF, SCR is occupy in a kind of exhaust aftertreatment |
| CN109441603B (en) * | 2018-12-27 | 2024-02-02 | 东风商用车有限公司 | Packaging system between DPF and SCR in tail gas aftertreatment |
| CN109550398A (en) * | 2019-01-16 | 2019-04-02 | 北京工大环能科技有限公司 | One kind is for warm type denitrating system in more gas internal-combustion engine flue gases |
| CN109550398B (en) * | 2019-01-16 | 2024-04-30 | 北京工大环能科技有限公司 | Medium-temperature denitration system for flue gas of multiple gas internal combustion engines |
| CN111111436A (en) * | 2020-01-16 | 2020-05-08 | 沂州科技有限公司 | Reduce NO in waste gas generated by coke ovenxSCR denitration reactor of content |
| CN111577433B (en) * | 2020-05-12 | 2021-05-14 | 山东交通学院 | Engine tail gas treatment device |
| CN111558297B (en) * | 2020-05-12 | 2021-08-17 | 山东交通学院 | Method for reducing exhaust emission of engine |
| CN111577433A (en) * | 2020-05-12 | 2020-08-25 | 山东交通学院 | Engine tail gas treatment device |
| CN111558297A (en) * | 2020-05-12 | 2020-08-21 | 山东交通学院 | Method for reducing exhaust emission of engine |
| CN113217154A (en) * | 2021-05-26 | 2021-08-06 | 河南柴油机重工有限责任公司 | Mixing device for SCR system |
| CN113339111A (en) * | 2021-06-08 | 2021-09-03 | 中自环保科技股份有限公司 | Urea-SCR mixer of diesel internal combustion engine post-treatment system |
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