CN208502877U - A kind of compact large-scale diesel engine exhaust gas processing device - Google Patents
A kind of compact large-scale diesel engine exhaust gas processing device Download PDFInfo
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- CN208502877U CN208502877U CN201821161777.6U CN201821161777U CN208502877U CN 208502877 U CN208502877 U CN 208502877U CN 201821161777 U CN201821161777 U CN 201821161777U CN 208502877 U CN208502877 U CN 208502877U
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- diesel engine
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- 238000012545 processing Methods 0.000 title claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 50
- 230000030279 gene silencing Effects 0.000 claims abstract description 6
- 238000005538 encapsulation Methods 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 14
- 239000004202 carbamide Substances 0.000 abstract description 14
- 239000000306 component Substances 0.000 description 61
- 239000007789 gas Substances 0.000 description 34
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 16
- 229910021529 ammonia Inorganic materials 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007867 post-reaction treatment Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a kind of compact large-scale diesel engine exhaust gas processing devices, including air intake assembly, DOC component, DPF component, electric hybrid module, SCR component and the exhaust noise silencing component being sequentially connected in series；The electric hybrid module includes hollow mixing tube, and the mixing tube is inserted through collector plate, and a part of the mixing tube is located at the side of collector plate, and another part is located at the other side of collector plate；The top of the mixing tube is equipped with swirl vane, and bottom is equipped at least one porthole window, and swirl vane and porthole window are located at the two sides of the collector plate；The side space of the collector plate is connected to the DPF component, and other side space is connected to the SCR component.Urea mixer and mixing tube, are arranged in reactor, compact-sized, can satisfy the demand that large-scale diesel engine realizes vent gas treatment.
Description
Technical field
The utility model relates to engine emission purification treatment technology field more particularly to a kind of compact large-scale diesel engines
Exhaust gas processing device.
Background technique
Diesel engine is due to the advantage that has gasoline engine incomparable in terms of dynamic property, economy and reliability, especially
CO2 emission value is especially low, is widely applied, however the harm of exhaust pollution of diesel engines bring is increasingly subject to people
Concern.The increasingly strict of national emission regulation promotes domestic diesel engine manufacturing enterprise to have to look for effective way to control and subtract
It discharges pollutants less, and national legislation clearly proposes PM (Particulate for 130-560kW non-rice habitats diesel engine at present
Matter), PN (Particulate Number) and NOx requirement, so, DPF (Diesel Particulate Filter) and
SCR (selective catalytic reduction) technology is current China's non-rice habitats large diesel engine PM/PN and NOx row
The unconventional and unrestrained optimal selection to national emission standard.
Diesel catalyst post-reaction treatment system is mainly by PM filter device DPF system, NOx catalytic convention design SCR system
System and control system composition.
DPF system is one of important component in exhaust treatment system, its quality will will have a direct impact on PM in tail gas
Emission performance mainly plays the key effect of PM in filtering tail gas.In general, containing a large amount of in diesel motor exhaust
Particulate material (soot) harmful substance needs to install additional DPF system to remove the harmful substance in this diesel engine exhaust
System carries out particulate matter removal.But currently, it is limited by DPF self character and manufacturing technology, for 400kW-560kW diesel oil
Machine, DPF specification can not meet design requirement at present.
SCR system is another important component in exhaust treatment system, its quality will will have a direct impact in tail gas
NOx emission performance mainly plays the important function of NOx in removal tail gas.Currently, in SCR catalysis sound-attenuating system, spraying system
Aqueous solution of urea is sprayed into mixer and mixing tube into SCR system by nozzle to be pyrolyzed again.Hydrolysis generates the process meeting of ammonia
A series of complex chemical reaction occurs, and along with chemical reaction, a variety of intermediate products, such as cyanuric acid can be generated, and can be attached
On SCR mixer and mixing tube wall surface, formed calculus, be commonly called as crystallizing, for large-duty engine, NOx discharge is big, instead
In requisition for aqueous solution of urea it is more, it is obvious for the cooling effect of wall surface etc., need longer pipe road carry out urea decomposition, if design
It is improper, it is easy to form calculus or NOx emission is not up to standard.
At present for vehicle device application, although DPF and SCR system have had application, for 400kW-560k heavy type
Diesel engine, is currently limited by the manufacturing technology of DPF and SCR system core component carrier, and full-size is not able to satisfy at present
400kW-560kW large diesel engine application, if considering series system arrangement (as shown in Figure 1) merely, it is super that it will cause back pressures
It is economical to seriously affect diesel engine fuel oil for height, at the same will cause series connection length it is longer, in the horizontal plane, reactor assembly arrangement
Critical constraints.If considering parallel way merely, while considering that urea decomposes the length needed, it will cause overall volume increasings
Greatly, on horizontally or vertically face, arrangement space is limited.Therefore, urgent need to resolve 400kW-560kW diesel engine DPF and SCR system
Design problem.
Utility model content
The purpose of this utility model is exactly to solve the above-mentioned problems, to provide a kind of compact large-scale diesel engine vent gas treatment
Device, it is compact-sized, it can satisfy the demand that large-scale diesel engine realizes vent gas treatment.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of compact large-scale diesel engine exhaust gas processing device, including the air intake assembly, DOC component, DPF group being sequentially connected in series
Part, electric hybrid module, SCR component and exhaust noise silencing component；
The electric hybrid module includes hollow mixing tube, and the mixing tube is inserted through collector plate, and one of the mixing tube
Quartile is located at the other side of collector plate in the side of collector plate, another part；The top of the mixing tube is equipped with swirl vane, bottom
Portion is equipped at least one porthole window, and swirl vane and porthole window are located at the two sides of the collector plate；
The side space of the collector plate is connected to the DPF component, and other side space is connected to the SCR component.
It is equivalent to urea mixer and mixing tube, is arranged in reactor, realizes that air-flow is gone out by DPF component by collector plate
Collect after coming into mixing tube, swirl vane forms gas cyclone, then mixes with the aqueous solution of urea of penetrating, accelerates urea
It decomposes, it is possible to reduce mixing length of tube is further reduced space.Mixed gas is entered by porthole window in electric hybrid module
In SCR component.
The top of the mixing tube is equipped with spray gun in the outside of mixing tube.
The DPF component internal includes three independent identical DPF encapsulation unit components, respectively the first DPF encapsulation
Unit block, the 2nd DPF encapsulation unit component and the 3rd DPF encapsulation unit component；
DPF encapsulation unit component uses clip attachment, is fixed on the front and back tube wall of DPF component by clip respectively
On.
The spray gun is fixed on the top of the mixing tube by spray gun seat.
The inside of the mixing tube lower part is additionally provided with secondary mixer, and the secondary mixer is located at the upper of the porthole window
Portion.It after aqueous solution of urea is decomposed to form ammonia, is uniformly mixed in mixing tube with exhaust gas, by the secondary mixing for mixing bottom of the tube
Device further realizes the mixing of ammonia and exhaust gas.
Spoiler is additionally provided between the electric hybrid module and SCR component.
Before SCR component, by spoiler, realizes gaseous mixture being uniformly distributed before SCR component in parallel, meet SCR
The requirement of component ammonia uniform distribution, exhaust gas react under the catalysis of the catalyst with ammonia, generate harmless nitrogen, lead to
It crosses tail pipe and enters atmosphere.
The collector plate is obliquely installed, and inclination angle is 45 ° -60 °.It can make the entrance mixing tube that air-flow is smooth.
The air intake assembly includes air inlet pipe, and the front end of the air inlet pipe is equipped with flange, and rear end is connect with drive end bearing bracket, described
Air inlet pipe is equipped with exhaust temperature sensor seat, and the drive end bearing bracket is connect by tube wall with cloth flowing plate.
The utility model has the beneficial effects that
Urea mixer and mixing tube, are arranged in reactor, are realized by collector plate and are converged after air-flow is come out by DPF component
Collection enters in mixing tube, and swirl vane forms gas cyclone, then mixes with the aqueous solution of urea of penetrating, and urea is accelerated to decompose,
Mixing length of tube can be reduced, space is further reduced, it is compact-sized.
Detailed description of the invention
Fig. 1 is the tail gas catalyzed reaction treating device schematic diagram of non-rice habitats large-scale diesel engine in the utility model background；
Fig. 2 is the schematic diagram of compact big-block engine exhaust gas processing device in the utility model embodiment；
Fig. 3 is the concrete structure schematic diagram of air intake assembly；
Fig. 4 is the structural schematic diagram of mixing tube；
Fig. 5 is the concrete structure schematic diagram of electric hybrid module；
Fig. 6 is DPF component and SCR component internal structural schematic diagram.
Wherein, 1- air intake assembly；2-DOC component；3-DPF component；4- electric hybrid module；5-SCR component；6- exhaust noise silencing group
Part；7- hair band；8- differential pressure pickup；
1.1- flange；1.2- air inlet pipe；1.3- exhaust temperature sensor seat；1.4- drive end bearing bracket；1.5- cloth flowing plate；
The first DPF encapsulation unit component of 3.1-；The 2nd DPF encapsulation unit component of 3.2-；The 3rd DPF encapsulation unit group of 3.3-
Part；
4.1- swirl vane；4.2- spray gun seat；4.3- spray gun；4.4- mixing tube；4.5 secondary mixer；4.6- point
Flow window；4.7- collector plate；4.8- spoiler；
The first SCR encapsulation unit component of 5.1-；The 2nd SCR encapsulation unit component of 5.2-.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
The utility model is to solve the problems, such as 400kW-560kW heavy-duty engine tail gas reaction treatment, provides a kind of energy
Enough meet the vent gas treatment reaction unit of reactor overall compact arrangement.
A kind of compact large-scale diesel engine exhaust gas processing device, as described in Figure 2, including be sequentially connected in series air intake assembly 1,
DOC component 2, DPF component 3, electric hybrid module 4, SCR component 5 and exhaust noise silencing component 6；
As illustrated in figures 4-5, the electric hybrid module includes hollow mixing tube 4.4, and the mixing tube 4.4 is inserted through inclination and sets
The collector plate 4.7 set, the top of the mixing tube 4.4 are located at the upper side of collector plate, and lower part is located at the downside of collector plate 4.7；
The top of the mixing tube 4.4 be equipped with swirl vane 4.1, bottom be equipped at least one porthole window 4.6, swirl vane 4.1 and point
Stream window 4.6 is located at the two sides of the collector plate；
The upside space of the collector plate 4.7 is connected to the DPF component, and other side space is connected to the SCR component.
The collector plate is obliquely installed, and inclination angle is 45 ° in the present embodiment.
The top of the mixing tube is equipped with spray gun 4.3 in the outside of mixing tube 4.4.The spray gun 4.3 passes through spray gun seat 4.2
It is fixed on the top of the mixing tube 4.4.
The inside of 4.4 lower part of mixing tube is additionally provided with secondary mixer 4.5, and the secondary mixer is located at the shunting
The top of window 4.6.
Spoiler 4.8 is additionally provided between the electric hybrid module and SCR component.
As shown in figure 3, the air intake assembly includes air inlet pipe 1.2, the front end of the air inlet pipe 1.2 is equipped with flange 1.1, after
End connect with drive end bearing bracket 1.4, the air inlet pipe 1.2 be equipped with exhaust temperature sensor seat 1.3, the drive end bearing bracket 1.4 pass through tube wall and
Cloth flowing plate 1.5 connects.
As shown in fig. 6, DPF component is arranged in parallel mode using more monomers, DPF component internal includes three independent identical
DPF encapsulation unit component, respectively the first DPF encapsulation unit component 3.1, the 2nd DPF encapsulation unit component 3.2 and third
DPF encapsulation unit component 3.3, can individually work, and improve the reliability of system work, one goes wrong wherein
In the case where system can also work.
DPF encapsulation unit component uses clip attachment, is fixed on the front and back tube wall of DPF component 3 by clip 7 respectively
On, it can satisfy DPF and remove deashing function.
The front and back of DPF component 3 is equipped with differential pressure pickup 8, end pressure before and after test DPF.
As shown in fig. 6, SCR component internal also includes three independent identical SCR encapsulation unit components, respectively first
SCR encapsulation unit component 5.1, the 2nd SCR encapsulation unit component 5.2 and the 3rd SCR encapsulation unit component.
DPF component and SCR component are arranged in parallel using more monomers, and DPF and SCR volume are calculated according to diesel engine discharge capacity
Design, while different specification size can be selected according to different engine displacement, meet certain power bracket intrinsic motivation demand.Together
When in order to meet DPF remove deashing function, DPF system is designed to clamp connection mode.
Using a kind of processing method of compact large-scale diesel engine exhaust gas processing device, comprising:
The compact large-scale diesel engine exhaust gas processing device of the utility model is gone out by flange 1.1 with from engine supercharger
The exhaust pipe come is connected, and the tail gas containing exhaust contaminants such as PM and NOx enters the vent gas treatment by air intake assembly 1 and fills
It sets, exhaust gas is by air intake assembly (by flange 1.1, air inlet pipe 1.2, exhaust temperature sensor seat 1.3, drive end bearing bracket 1.4,1.5 groups of cloth flowing plate
At) exhaust gas is made to be evenly distributed in 2 front end face of DOC component, by catalyst reaction in exhaust gas and DOC component 2, eliminate useless
The substances such as the HC in gas, and adjust in exhaust gas NO and NO in NOx2Ratio；
Then exhaust gas enters in DPF component 3, and the PM in exhaust gas is filtered under the effect of DPF component 3, stays in DPF DPF
In component 3, the purification of PM is completed, subsequently into the back cavity of DPF DPF component 3, in electric hybrid module 4 (by swirl vane 4.1, spray
Gun platform 4.2, spray gun 4.3, mixing tube 4.4, secondary mixer 4.5, porthole window 4.6, collector plate 4.7, spoiler 4.8) effect under,
Air-flow is collected after 4.7 water conservancy diversion of collector plate by mixing tube 4.4 in the entrance of rotating vane 4.1, and is ejected with spray gun 4.3
Aqueous solution of urea effect, under the cyclonic action of 4.4 forward spin flow blade of mixing tube, complete aqueous solution of urea be pyrolyzed hydrolysis
Ammonia is generated afterwards and exhaust gas is completed to be pre-mixed, and into 4.4 lower part of mixing tube, is acted in 4.4 lower part secondary mixer 4.5 of mixing tube
Under, it completes ammonia and is mixed with the secondary of exhaust gas；
SCR component 5 is entered by mixing tube side porthole window 4.6 by secondary mixed air-flow, in the work of spoiler 4.8
Under, gaseous mixture is evenly distributed on the front end of SCR component 5, and under the effect of the catalyst, ammonia is reacted with NOx, and it is net to complete NOx
Change reaction, tail gas is discharged into atmosphere by exhaust noise silencing component 6.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but it is not practical new to this
The limitation of type protection scope, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel do not need to make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (7)
1. a kind of compact large-scale diesel engine exhaust gas processing device, characterized in that including be sequentially connected in series air intake assembly, DOC group
Part, DPF component, electric hybrid module, SCR component and exhaust noise silencing component；
The electric hybrid module includes hollow mixing tube, and the mixing tube is inserted through collector plate, a part of position of the mixing tube
In the side of collector plate, another part is located at the other side of collector plate；The top of the mixing tube is equipped with swirl vane, and bottom is set
There is at least one porthole window, swirl vane and porthole window are located at the two sides of the collector plate；
The side space of the collector plate is connected to the DPF component, and other side space is connected to the SCR component；
The top of the mixing tube is equipped with spray gun in the outside of mixing tube.
2. a kind of compact large-scale diesel engine exhaust gas processing device as described in claim 1, characterized in that in the DPF component
Portion includes three independent identical DPF encapsulation unit components, and respectively the first DPF encapsulation unit component, the 2nd DPF encapsulation are single
First component and the 3rd DPF encapsulation unit component；
DPF encapsulation unit component uses clip attachment, is fixed on the front and back tube wall of DPF component by clip respectively.
3. a kind of compact large-scale diesel engine exhaust gas processing device as described in claim 1, characterized in that the spray gun passes through spray
Gun platform is fixed on the top of the mixing tube.
4. a kind of compact large-scale diesel engine exhaust gas processing device as described in claim 1, characterized in that the mixing tube lower part
Inside be additionally provided with secondary mixer, the secondary mixer is located at the top of the porthole window.
5. a kind of compact large-scale diesel engine exhaust gas processing device as described in claim 1, characterized in that the electric hybrid module and
Spoiler is additionally provided between SCR component.
6. a kind of compact large-scale diesel engine exhaust gas processing device as described in claim 1-5 any one, characterized in that described
Collector plate is obliquely installed, and inclination angle is 45 ° -60 °.
7. a kind of compact large-scale diesel engine exhaust gas processing device as described in claim 1, characterized in that the air intake assembly packet
Air inlet pipe is included, the front end of the air inlet pipe is equipped with flange, and rear end is connect with drive end bearing bracket, and the air inlet pipe is equipped with exhaust temperature sensor
Seat, the drive end bearing bracket are connect by tube wall with cloth flowing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821161777.6U CN208502877U (en) | 2018-07-20 | 2018-07-20 | A kind of compact large-scale diesel engine exhaust gas processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821161777.6U CN208502877U (en) | 2018-07-20 | 2018-07-20 | A kind of compact large-scale diesel engine exhaust gas processing device |
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| Publication Number | Publication Date |
|---|---|
| CN208502877U true CN208502877U (en) | 2019-02-15 |
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ID=65289802
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| CN201821161777.6U Active CN208502877U (en) | 2018-07-20 | 2018-07-20 | A kind of compact large-scale diesel engine exhaust gas processing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664304A (en) * | 2020-12-14 | 2021-04-16 | 广西玉柴机器股份有限公司 | Take six engine structures in state of tertiary aftertreatment |
| CN112814770A (en) * | 2020-12-31 | 2021-05-18 | 潍柴动力股份有限公司 | Uniformity evaluation method and device of parallel SCR system |
-
2018
- 2018-07-20 CN CN201821161777.6U patent/CN208502877U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664304A (en) * | 2020-12-14 | 2021-04-16 | 广西玉柴机器股份有限公司 | Take six engine structures in state of tertiary aftertreatment |
| CN112814770A (en) * | 2020-12-31 | 2021-05-18 | 潍柴动力股份有限公司 | Uniformity evaluation method and device of parallel SCR system |
| CN112814770B (en) * | 2020-12-31 | 2022-04-05 | 潍柴动力股份有限公司 | Uniformity evaluation method and device of parallel SCR system |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A compact exhaust gas treatment device for large diesel engine Effective date of registration: 20210601 Granted publication date: 20190215 Pledgee: Shandong Shouguang Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG KANGJUN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2021980004246 |
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Date of cancellation: 20231115 Granted publication date: 20190215 Pledgee: Shandong Shouguang Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG KANGJUN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2021980004246 |