CN107905873A - Meet the Novel heavy-truck after-treatment system and method for national 6th stage emission standard - Google Patents
Meet the Novel heavy-truck after-treatment system and method for national 6th stage emission standard Download PDFInfo
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- CN107905873A CN107905873A CN201711125935.2A CN201711125935A CN107905873A CN 107905873 A CN107905873 A CN 107905873A CN 201711125935 A CN201711125935 A CN 201711125935A CN 107905873 A CN107905873 A CN 107905873A
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 61
- 239000011229 interlayer Substances 0.000 claims abstract description 46
- 239000010410 layer Substances 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000006555 catalytic reaction Methods 0.000 claims description 8
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- 239000007787 solid Substances 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
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- 239000000203 mixture Substances 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 24
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- -1 oxynitrides Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 206010028813 Nausea Diseases 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical compound [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 229930195733 hydrocarbon Natural products 0.000 description 2
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- 238000003032 molecular docking Methods 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
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- 239000002283 diesel fuel Substances 0.000 description 1
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- 239000003546 flue gas Substances 0.000 description 1
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Classifications
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- 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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
- F01N13/148—Multiple layers of insulating material
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/0335—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with exhaust silencers in a single housing
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/02—Tubes being perforated
-
- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
-
- 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 discloses a kind of Novel heavy-truck after-treatment device and method for meeting national 6th stage emission standard,Including housing,Filter,Conduit,First catalyst converter and the second catalyst converter,Housing bottom is provided with link,And housing leading flank is provided with air inlet pipe,Housing trailing flank is provided with kuppe,And housing left surface is provided with air outlet pipe,Enclosure interior is divided into the first interlayer and the second interlayer,First interlayer and the second interlayer are arranged in parallel,And first interlayer one end be connected with air outlet pipe,First interlayer is internally provided with the second catalyst converter,Second interlayer is internally provided with filter,Conduit and the first catalyst converter,And filter one end is connected by the first catalyst converter with air inlet pipe,Kuppe leading flank is provided with first pair of interface and second pair of interface,And first is arranged on interface second below interface,First pair of interface is connected with the filter other end,And second butt hole be connected with tube at one end,The conduit other end is connected with the first interlayer other end.
Description
Technical field
The invention belongs to tail gas disposal technique field, and in particular to a kind of to meet the new of national 6th stage emission standard
Heavy truck after-treatment system and method.
Background technology
Vehicle exhaust is that automobile uses caused exhaust gas, and containing hundreds of different compound, pollutant therein has
Solid aerosol, carbon monoxide, carbon dioxide, hydrocarbon, oxynitrides, lead and oxygen sulfur compound etc..
Tail gas can also exert far reaching influence the environment of human lives while being directly detrimental to health.In tail gas
Sulfur dioxide there is strong impulse smell, the generation of " acid rain " is easy to cause when reaching a certain concentration, causes soil and water
Source is acidified, and influences the growth of crops and forest.
In street corner bustling with vehicles, one strand of flue gas azury is sprayed from many motor vehicle tails, and here it is usual
Described vehicle exhaust.Not only smell is strange for this gaseous effluent, but also makes us dizzy, nauseous, influences the health of people.
In the case where vehicle is few, the self-purification capacity of air can still dissolve the toxin of automobile discharge.But with automobile quantity drastically
Increase, traffic congestion get married normal potluck, and convenient, comfortable, the efficient advantage that automobile should possess is gradually by excessive vehicle
Offset." automobile disaster " has been formed, and the vehicle exhaust thus brought is even more that no small harm is done.This gaseous effluent not only gas
Taste is strange, and makes us dizzy, nauseous, influences the health of people.Automobile exhaust gas processing apparatus is under the action of catalyst
It is purified tail gas, to mitigate the device of the pollution to environment.Scientific analysis shows, different containing hundreds of in vehicle exhaust
Compound, pollutant therein have solid aerosol, carbon monoxide, carbon dioxide, hydrocarbon, oxynitrides,
Lead and oxygen sulfur compound etc..The harmful exhaust of one car discharge in 1 year is 3 times bigger than own wt；Existing tail gas unit device
It is complicated, of high cost, poor processing effect.
National 5th stage emission standard started to carry out in China on January 1st, 2017, it is contemplated that in 2022 years
National 6th stage emission standard is carried out, a set of exhaust system for meeting VI standard of state harsh all the more of exploitation design has very much must
Will, national 6th stage emission standard since the requirement to discharging pollutants is harsh, make new by the discharge especially to particulate matter
It is required that, it is necessary to the basis of diesel oxidation catalyst DOC and selective catalytic reduction device SCR is installed in diesel engine truck exhaust system
On, diesel particulate filter (DPF) is also added, therefore design national 6th rank of the satisfaction equipped with DPF diesel particulate filters
The exhaust system of section discharge standard is necessary.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of satisfaction national 6th stage
The Novel heavy-truck after-treatment system and method for discharge standard, to solve the problems mentioned in the above background technology.
Technical solution：To achieve the above object, the technical solution adopted by the present invention is：
A kind of Novel heavy-truck after-treatment system for meeting national 6th stage emission standard, including housing and its internal setting
Sequentially connected first catalyst converter, filter and the second catalyst converter, wherein, it is parallel arrangement of that the enclosure interior is divided into left and right
Two interlayers, are respectively the first interlayer and the second interlayer；The first catalyst converter is disposed with from front to back in second interlayer
With diesel particulate filter (DPF), the second catalyst converter is provided with first interlayer；There is connection cavity between two interlayers,
For the first cavity, there is connection cavity between the first interlayer and housing, be the second cavity；Second catalyst converter is fixed on two companies
Between connecing cavity, both ends are each passed through two connection cavities and are located on the partition plate of inner side, and are supported by it fixing, and the second catalysis
The entrance and exit that device is located at both ends is respectively placed in the first cavity and the second cavity respectively；
Second catalyst converter is SCR catalyst (selective catalytic reduction device), and first catalyst converter is DOC catalyst converters
(diesel oil oxidation catalyst converter)；
Outside is provided with air inlet pipe and is connected with the first catalyst converter input end before second interlayer, on the outside of first interlayer
It is provided with air outlet pipe connection to be connected with the second catalyst converter, first catalyst converter connects filter, the diesel particulate filter
Second catalyst converter is connected by conduit.
Further, the trailing flank of the housing is provided with kuppe, and the kuppe leading flank is provided with the first docking
Mouthful and second pair of interface, and first is arranged on interface second to interface below, and first pair of interface is with being arranged on described the
The diesel particulate filter that two interlayer low insides are put corresponds to connection, and second butt hole is with being arranged on the housing upper position
The arrival end connection for the conduit put, the conduit other end connect first cavity.Gas enters cavity by conduit, then into
Enter catalyst converter, catalyst converter is divided into about two arrangements, can increase by area, reduce exhaust back pressure.Form two of interlayer
Partition plate is for supporting catalyst converter, so gas must enter cavity by catalyst converter.
Further, the kuppe inner wall is provided with diversion trench, and diversion trench is spiral shape.
Further, the kuppe inner wall is also coated with refractory coating, and the refractory coating is from the inside to the outside successively by liquid
State tack coat, solid composite and phenolic coating composition, the solid composite from the inside to the outside successively by fire clay layer,
Carbon fiber layer and reinforcing fiber layer close-packed arrays composition.
Further, perforation was evenly arranged with the conduit, the penetration hole diameter of crossing is 2mm-5mm.
Further, second catalyst converter is set to be a pair of up and down, and along the center of short transverse in the first interlayer
Axis is symmetrical above and below.Second catalyst converter is divided into two reduces the back of the body to increase the cross-sectional area passed through in limited installation space
Pressure.
Further, the housing bottom is provided with link.
A kind of method for the Novel heavy-truck after-treatment system for meeting national 6th stage emission standard, is urged using by DOC
Change device, then by diesel particulate filter, finally by double-deck SCR, specifically include following steps：
1) vehicle exhaust is entered in the second interlayer by air inlet pipe, carries out leading oxidation catalysis through the first catalyst converter first；
2) tail gas after step 1) oxidation enters in the diesel particulate filter being connected with the first catalyst converter, carries out gas
Filtering；
3) tail gas after step 2) filtering is by kuppe water conservancy diversion, from the lower part uplink of housing, by catheter drainage from
The top of first interlayer enters；
4) the second catalyst converter in the first interlayer is entered by the first cavity from the tail gas that the top of the first interlayer enters, into
Promoting the circulation of qi body catalyst converter and noise reduction processing, the gas after processing enter the second cavity, the outlet finally set on the outside of the first interlayer
Pipe is discharged.
Beneficial effect：The Novel heavy-truck after-treatment system provided by the invention for meeting national 6th stage emission standard and side
Method, compared with prior art, has the advantage that：
(1) the configuration of the present invention is simple, it is install convenient, safe to use, vehicle exhaust filter effect can be effectively improved.
(2) designed the present invention be directed to national 6th stage emission standard, meet national 6th stage emission standard, and
It disclosure satisfy that noise lowers the requirement.
(3) in the present invention, in order to ensure to meet six exhaust emission standard of state, carried out first using by DOC catalyst converters
Row oxidation catalysis, then carries out gas filtration by DPF diesel particulate filters, is finally urged by double-deck SCR progress gases
Change device and noise reduction.
(4) in the present invention, in order to reduce the pollution of noise, employ and perforation was evenly arranged with conduit, together
When cross the diameter of perforation between 2mm-5mm.
(5) in the present invention, in order to improve the heat-resisting effect of kuppe, the inner-wall spraying in water conservancy diversion over body case is employed
There is refractory coating, heat resistance, flame resistance, water resistance, the insulating properties having using phenolic coating are excellent, and acid resistance is good；Profit
Fiberfill layer has larger rigidity and excellent rotproofness；With excellent chemical stability and electrical insulating property；To improve
Its fire resistance.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is side structure schematic view of the present invention.
Fig. 3 is refractory coating structure schematic cross-sectional view of the present invention.
Fig. 4 is interior three-dimensional space structure schematic diagram of the present invention.
Fig. 5 is three-dimensional structure front view of the present invention.
Fig. 6 is three-D space structure schematic diagram of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
According to following embodiments, the present invention can be better understood from.It is however, as it will be easily appreciated by one skilled in the art that real
Apply example described specific material proportion, process conditions and its result and be merely to illustrate the present invention, without that will not should limit
The present invention described in detail in claims processed.
- 2 and Fig. 4-6 are please referred to Fig.1, the present invention provides a kind of technical solution：One kind meets national 6th stage emission mark
Accurate Novel heavy-truck after-treatment system, including housing 1, diesel particulate filter 2, conduit 3, the first catalyst converter 4 and the second catalysis
Device 5,1 bottom of housing are provided with link 6, for that installed in the mounting bracket of car body, sufficient intensity babinet can be prevented in vapour
Garage crosses journey since vibration is dropped.And 1 leading flank of housing is provided with air inlet pipe 7,1 trailing flank of housing is provided with kuppe 8, and
1 left surface of housing is provided with air outlet pipe 9, and the first interlayer 10 and the second interlayer 11, the first interlayer 10 and second are divided into inside housing 1
Interlayer 11 is arranged in parallel, and 10 one end of the first interlayer is connected with air outlet pipe 9, and the first interlayer 10 is internally provided with the second catalyst converter 5,
Second interlayer 11 is internally provided with diesel particulate filter 2,3 and first catalyst converter 4 of conduit, and 2 one end of filter passes through first
Catalyst converter 4 is connected with air inlet pipe 7, and 8 leading flank of kuppe is provided with first pair of interface 12 and second pair of interface 13, and the first docking
Mouthfuls 12 are arranged on second to interface 13 below, height design herein so that gas by being needed after DOC and DPF into SCR i.e. the
One cavity 21, enters the first cavity 21 by conduit 3 again by kuppe 8, overall chamber 11 can be entered to avoid gas, so that wall
Face gas flows and causes the vibration of housing 1 to trigger radiated noise；First pair of interface 12 connects with 2 other end of diesel particulate filter
Connect, and the second butt hole 13 is connected with 3 one end of conduit, 3 other end of conduit is connected with 10 other end of the first interlayer.Kuppe 8 will
Importing the first cavity 21 by the air-flow of DPF can be with vibration radiation noise into 11 wall of large cavity to avoid gas.
The configuration of the present invention is simple, it is install convenient, safe to use, vehicle exhaust filter effect can be effectively improved, while really
Guarantor meets six exhaust emission standard of state, and can effectively carry out noise reduction process.
Perforation was evenly arranged with conduit 3, and crosses penetration hole diameter between 2mm-5mm., can using this design structure
Effectively carry out noise reduction process, it is ensured that reduce the pollution of noise.
In the present invention, 8 inner wall of kuppe is provided with diversion trench, and diversion trench is spiral shape.Diversion trench is cambered design, can
To reduce the resistance that air-flow passes through, while avoid air-flow from directly impacting kuppe wall and cause Wall Vibration to produce radiated noise.
As shown in figure 3,8 inner wall of kuppe is also coated with refractory coating 14, refractory coating 14 is solid composite 15, phenolic aldehyde
Resinous coat 16 and liquid tack coat 17, liquid tack coat 17 are coated in the lower section of solid composite 15, phenolic coating 16
Coated in the top of solid composite 15, solid composite 15 includes reinforcing fiber layer 18, carbon fiber layer 19 and fire clay layer 20,
Reinforcing fiber layer 18, carbon fiber layer 19 and fire clay layer 20 close-packed arrays successively；Employ the inner wall spray in water conservancy diversion over body case
Refractory coating is scribbled, heat resistance, flame resistance, water resistance, the insulating properties having using phenolic coating are excellent, and acid resistance is good；
There is larger rigidity and excellent rotproofness using fibrous layer；With excellent chemical stability and electrical insulating property；To carry
Its high fire resistance.
In addition, in the present invention, the second catalyst converter 5 is set to be a pair of up and down, is designed to that two can increase gas and pass through face
Product reduces exhaust back pressure, and excessive design can increase the volume of whole system, increases design cost, and multilayer is installed on partition plate
On can reduce diaphragm strength, since the road surface of running car is very complicated, vibration can be produced, these structural members are required for certain resistance to
Long intensity, should not weaken, therefore select two to form a pair of of symmetrical structure up and down；And second catalyst converter 5 be SCR catalyst, institute
It is DOC catalyst converters to state the first catalyst converter 4；Filter 2 is diesel particulate filter；Using this design structure, can imitate ensures completely
Sufficient six exhaust emission standard of state, leading oxidation catalysis is carried out using by DOC catalyst converters, then by diesel particulate filter into
Row gas filtration, is finally carrying out gas catalysis device and noise reduction by double-deck SCR.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
The present invention is to meet state based on the diesel engine exhaust system design for meeting national 5th stage emission standard
The exhaust system of the 6th stage emission standard of family.Relative to five standard of state, state six makes exhaust emissions more harsh requirement,
Specific to addition DPF diesel particulate filters in the design of exhaust system.So it should meet discharge standard in the design, also
Ensure installation strength and low exhaust back pressure.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
- A kind of 1. Novel heavy-truck after-treatment system for meeting national 6th stage emission standard, it is characterised in that：Including housing (1) And its internal sequentially connected first catalyst converter (4), filter (2) and the second catalyst converter (5) set, wherein, the housing (1) it is internal to be divided into parallel arrangement of two interlayers in left and right, it is respectively the first interlayer (10) and the second interlayer (11)；Described second every The first catalyst converter (4) and diesel particulate filter (2) are disposed with layer (11) from front to back, first interlayer (10) is interior It is provided with the second catalyst converter (5)；There is connection cavity between two interlayers, be the first cavity (21), the first interlayer (10) and housing (1) there is connection cavity between, be the second cavity (22)；Second catalyst converter (5) is fixed between two connection cavities, both ends It is each passed through two connection cavities to be located on the partition plate of inner side, and is supported by it fixing, and the second catalyst converter (5) is located at both ends Entrance and exit is respectively placed in the first cavity (21) and the second cavity (22) respectively；Second catalyst converter (5) is SCR catalyst, and first catalyst converter (4) is DOC catalyst converters；Outside is provided with air inlet pipe (7) and is connected with the first catalyst converter (4) input end before second interlayer (11), described first every It is provided with air outlet pipe (9) connection on the outside of layer (10) to be connected with the second catalyst converter (5), first catalyst converter (4) connects filter (2), the diesel particulate filter (2) connects the second catalyst converter (5) by conduit (3).
- 2. the Novel heavy-truck after-treatment system according to claim 1 for meeting national 6th stage emission standard, its feature It is：The trailing flank of the housing (1) is provided with kuppe (8), and kuppe (8) leading flank is provided with first pair of interface (12) and second pair of interface (13), and first pair of interface (12) is arranged on below second pair of interface (13), first pair of interface (12) connection corresponding with being arranged on diesel particulate filter (2) that the second interlayer (11) low inside puts, described second pair The arrival end for connecing conduit (3) of the hole (13) with being arranged on the housing (1) upper position is connected, and conduit (3) other end connects Connect first cavity (21).
- 3. the Novel heavy-truck after-treatment system according to claim 2 for meeting national 6th stage emission standard, its feature It is：Kuppe (8) inner wall is provided with diversion trench, and diversion trench is spiral shape.
- 4. the Novel heavy-truck after-treatment system according to claim 2 for meeting national 6th stage emission standard, its feature It is：Kuppe (8) inner wall is also coated with refractory coating (14), and the refractory coating (14) is from the inside to the outside successively by liquid Tack coat (17), solid composite (15) and phenolic coating (16) composition, the solid composite (15) from the inside to the outside according to It is secondary to be made of fire clay layer (20), carbon fiber layer (19) and reinforcing fiber layer (18) close-packed arrays.
- 5. the Novel heavy-truck after-treatment system according to claim 1 for meeting national 6th stage emission standard, its feature It is：Perforation was evenly arranged with the conduit (3), the penetration hole diameter of crossing is 2mm-5mm.
- 6. the Novel heavy-truck after-treatment system according to claim 1 for meeting national 6th stage emission standard, its feature It is：Second catalyst converter (5) is set to be a pair of up and down, and above and below the central shaft in the first interlayer (10) along short transverse Symmetrically.
- 7. the Novel heavy-truck after-treatment system according to claim 1 for meeting national 6th stage emission standard, its feature It is：Housing (1) bottom is provided with link (6).
- A kind of 8. method for the Novel heavy-truck after-treatment system for meeting national 6th stage emission standard, it is characterised in that：Utilize By DOC catalyst converters, then by diesel particulate filter, finally by double-deck SCR, comprise the following steps：1) vehicle exhaust is entered in the second interlayer (11) by air inlet pipe (7), is aoxidized in advance through the first catalyst converter (4) first Catalysis；2) tail gas after step 1) oxidation enters in the diesel particulate filter (2) being connected with the first catalyst converter (4), into promoting the circulation of qi Body filters；3) tail gas after step 2) filtering, from the lower part uplink of housing (1), is drawn by kuppe (8) water conservancy diversion by conduit (3) Flow and enter from the top of the first interlayer (10)；4) second in the first interlayer (10) is entered by the first cavity (21) from the tail gas that the top of the first interlayer (10) enters Catalyst converter (5), carries out gas catalysis device and noise reduction processing, and the gas after processing enters the second cavity (22), finally from first every Air outlet pipe (9) discharge set on the outside of layer (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711125935.2A CN107905873A (en) | 2017-11-15 | 2017-11-15 | Meet the Novel heavy-truck after-treatment system and method for national 6th stage emission standard |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711125935.2A CN107905873A (en) | 2017-11-15 | 2017-11-15 | Meet the Novel heavy-truck after-treatment system and method for national 6th stage emission standard |
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| CN107905873A true CN107905873A (en) | 2018-04-13 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003025357A1 (en) * | 2001-09-14 | 2003-03-27 | Scania Cv Ab (Publ) | Housing arranged in an exhaust gas system for a combustion engine |
| US20110099978A1 (en) * | 2009-04-02 | 2011-05-05 | Cummins Ip, Inc | Reductant decomposition system |
| CN103707568A (en) * | 2012-10-04 | 2014-04-09 | 现代自动车株式会社 | Coating material for parts of engine exhaust system and method for manufacturing the same |
| CN103742242A (en) * | 2013-12-25 | 2014-04-23 | 潍柴动力股份有限公司 | SCR (Selective Catalytic Reduction) catalytic muffler and air outlet pipe thereof |
| KR20140087867A (en) * | 2012-12-31 | 2014-07-09 | 현대자동차주식회사 | Exhaust gas after-treatment device for vehicle |
| WO2014167351A2 (en) * | 2013-04-11 | 2014-10-16 | Perkins Engines Company Limited | Emissions cleaning module |
| CN104246162A (en) * | 2012-04-24 | 2014-12-24 | 珀金斯发动机有限公司 | Emissions cleaning module |
| CN107288710A (en) * | 2016-04-11 | 2017-10-24 | 华玉娣 | The high diesel exhaust filtration device of discharge standard |
| CN206592662U (en) * | 2017-03-28 | 2017-10-27 | 江苏立欣特钢制品有限公司 | A kind of novel stainless steel pipe |
| CN208718759U (en) * | 2017-11-15 | 2019-04-09 | 南京航空航天大学 | Novel heavy-truck after-treatment system |
-
2017
- 2017-11-15 CN CN201711125935.2A patent/CN107905873A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003025357A1 (en) * | 2001-09-14 | 2003-03-27 | Scania Cv Ab (Publ) | Housing arranged in an exhaust gas system for a combustion engine |
| US20110099978A1 (en) * | 2009-04-02 | 2011-05-05 | Cummins Ip, Inc | Reductant decomposition system |
| CN104246162A (en) * | 2012-04-24 | 2014-12-24 | 珀金斯发动机有限公司 | Emissions cleaning module |
| CN104364487A (en) * | 2012-04-24 | 2015-02-18 | 珀金斯发动机有限公司 | Emissions cleaning module for an engine |
| CN103707568A (en) * | 2012-10-04 | 2014-04-09 | 现代自动车株式会社 | Coating material for parts of engine exhaust system and method for manufacturing the same |
| KR20140087867A (en) * | 2012-12-31 | 2014-07-09 | 현대자동차주식회사 | Exhaust gas after-treatment device for vehicle |
| WO2014167351A2 (en) * | 2013-04-11 | 2014-10-16 | Perkins Engines Company Limited | Emissions cleaning module |
| CN103742242A (en) * | 2013-12-25 | 2014-04-23 | 潍柴动力股份有限公司 | SCR (Selective Catalytic Reduction) catalytic muffler and air outlet pipe thereof |
| CN107288710A (en) * | 2016-04-11 | 2017-10-24 | 华玉娣 | The high diesel exhaust filtration device of discharge standard |
| CN206592662U (en) * | 2017-03-28 | 2017-10-27 | 江苏立欣特钢制品有限公司 | A kind of novel stainless steel pipe |
| CN208718759U (en) * | 2017-11-15 | 2019-04-09 | 南京航空航天大学 | Novel heavy-truck after-treatment system |
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Application publication date: 20180413 |