CN209510425U - A kind of diesel oil platform-type that DPF is removable post-processing assembly - Google Patents
A kind of diesel oil platform-type that DPF is removable post-processing assembly Download PDFInfo
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- CN209510425U CN209510425U CN201920069829.5U CN201920069829U CN209510425U CN 209510425 U CN209510425 U CN 209510425U CN 201920069829 U CN201920069829 U CN 201920069829U CN 209510425 U CN209510425 U CN 209510425U
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- scr
- dpf
- end cap
- diesel oil
- rear end
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- 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
-
- 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
- Y02T10/40—Engine management systems
Abstract
The utility model relates to a kind of diesel oil platform-types that DPF is removable to post-process assembly, belong to diesel engine vent gas post-processing technology field.The box post-processing assembly of the utility model, including rear end cap, dismountable cover plate, differential pressure pickup, bracket, air inlet, drive end bearing bracket, cabinet, single layer cabinet, urea nozzle, gas outlet, NOx sensor, PM sensor, the rear end SCR temperature sensor, anchor ear, DPF, DOC, SCR end cap, pipeline, SCR cylinder, mixer, deflector, rear end cap, partition, SCR head temperature sensor and drive end bearing bracket temperature sensor, DPF and DOC connects into a cylinder by anchor ear, this cylinder and pipeline, SCR cylinder is linked into an integrated entity by partition, form inner assembly.The box post-processing assembly of the utility model is compact reliable, meet six discharge standard of state, together by DOC, DPF, SCR, urea nozzle and mixer effective integration, and ensure that DOC, DPF, SCR stability and high efficiency work, urea is uniformly distributed, in the end face SCR without the appearance of urea crystals situation.
Description
Technical field
The utility model belongs to diesel engine vent gas post-processing technology field, and in particular to a kind of diesel oil railway carriage that DPF is removable
Formula post-processes assembly.
Background technique
As national exhaust gas from diesel vehicle pollutant emission standard is increasingly stringenter, new discharge standard has exhaust pollutant
Extremely stringent standard only can no longer meet stringent discharge standard by engine emission controls by improving combustion.To six stage of state, need
Will be to the PM(particulate matter in exhaust contaminant) and NOx(nitrogen oxides) content controls, it is therefore desirable to DOC(oxidation is urged
Change converter), DPF(grain catcher) and SCR(selective catalytic reduction converter) be integrated in diesel vehicle post-processing in.It is existing
Having the diesel vehicle post-processing for being able to satisfy six discharge standard of state is mostly core structure, and there are occupied spaces greatly, entrucking versatility is bad
The disadvantages of.
Summary of the invention
The technical problem to be solved by the utility model is in view of the above shortcomings of the prior art, provide a kind of DPF
Removable diesel oil platform-type post-processes assembly.The diesel oil platform-type post-processing assembly of the utility model is compact reliable, meets state six
Discharge standard, can be by DOC, DPF, SCR, urea nozzle and mixer effective integration together, and ensures that DOC, DPF, SCR are steady
Determine efficient operation, urea is uniformly distributed, in the end face SCR without the appearance of urea crystals situation.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of diesel oil platform-type that DPF is removable
Post-process assembly, which is characterized in that diesel oil platform-type post-processing assembly has the feature that
After a kind of diesel oil platform-type that DPF is removable post-processing assembly, including rear end cap, air inlet, drive end bearing bracket, cabinet, SCR
Temperature sensor, anchor ear, DPF, DOC, SCR end cap, pipeline, SCR cylinder, mixer, deflector, SCR rear end cap and partition are held,
The post-processing assembly is in box, and DPF and DOC connect into a cylinder by anchor ear, this cylinder passes through with pipeline, SCR cylinder
Partition links into an integrated entity, and forms inner assembly.
The upper side of the inner assembly is equipped with dismountable cover plate, cabinet and single layer cabinet.
The post-processing front end is welded with drive end bearing bracket and SCR end cap, and rear end is welded with rear end cap and gas outlet, and equipped with bracket and
Urea nozzle.
The rear end cap, drive end bearing bracket and cabinet are double-layer structure, and heat-preservation cotton is filled between bilayer.
The DPF is detachable, and both ends are equipped with the differential pressure pickup for the carbon content being storaged inside detection DPF, engine
Electronic control unit starts dpf regeneration program according to carbon content.
The drive end bearing bracket temperature sensor of detection DOC initiation temperature is installed on the drive end bearing bracket.
The SCR head temperature sensor of detection SCR front end face temperature is provided on the SCR end cap, to electron control
Cell signal processed sprays urea in suitable temperature with determination.
NOx sensor, PM sensor and the rear end SCR temperature sensor are provided on the SCR rear end cap, wherein after SCR
Temperature sensor and SCR head temperature sensor is held to cooperate, the mean temperature being capable of detecting when inside SCR.
Compared with the prior art, the utility model has the following advantages:
(1) DOC, DPF, SCR, urea nozzle and mixer are integrated among a box post-processing, compact-sized reliable,
Entrucking versatility is good, post-processes as air inlet of leaning to one side, and the end face DOC airflow homogeneity and fuel oil uniformity are good, again for the safety of DPF below
It is raw that guarantee is provided.
(2) DPF is detachable, and disassembly mode is flexible, reinstalls to use after facilitating DPF periodically to remove soot blowing；Urea nozzle
And novel mixer Integrated design, compact-sized, urea and air-flow good mixing effect, generation urea crystals risk is small, section box
Body uses double-layer structure, and centre filling heat-preservation cotton, thermal insulation property is good and saves cost.
(3) pass through DOC aoxidize HC(hydrocarbon), CO(carbon monoxide) etc. pollutants, DPF trap engine generate
Cigarette ash, the NO in SCR also parent pollutantXEqual pollutants enable entire exhaust aftertreatment by vent gas treatment to meeting six row of state
Put standard.
The technical solution of the utility model is described in further detail below by the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is the utility model diesel oil platform-type post-processing assembly shape sight figure.
Fig. 2 is that the utility model diesel oil platform-type post-processing assembly internal gas flow moves towards figure.
Fig. 3 is the utility model diesel oil platform-type post-processing assembly internal structural map.
Description of symbols: 1- rear end cap；2- dismountable cover plate；3- differential pressure pickup；4- bracket；5- air inlet；Before 6-
End cap；7- cabinet；8- single layer cabinet；9- urea nozzle；The gas outlet 10-；11-NOXSensor；12-PM sensor；After 13-SCR
Hold temperature sensor；14- anchor ear；15-DPF；16-DOC；17-SCR end cap；18- pipeline；19-SCR cylinder；20- mixer；
21- deflector；22- rear end cap；23- partition；24-SCR head temperature sensor；25- drive end bearing bracket temperature sensor.
Specific embodiment
A kind of diesel oil platform-type that DPF is removable post-processes assembly, including rear end cap 1, air inlet 5, drive end bearing bracket 6, cabinet 7,
The rear end SCR temperature sensor 13, DPF15, DOC16, SCR end cap 17, pipeline 18, SCR cylinder 19, mixer 20, is led at anchor ear 14
Flowing plate 21, SCR rear end cap 22 and partition 23, in box, DPF15 and DOC16 are connected into the post-processing assembly by anchor ear 14
One cylinder, this cylinder are linked into an integrated entity with pipeline 18, SCR cylinder 19 by partition 23, and inner assembly is formed.
The upper side of the inner assembly is equipped with dismountable cover plate 2, cabinet 7 and single layer cabinet 8.
The post-processing front end is welded with drive end bearing bracket 6 and SCR end cap 17, and rear end is welded with rear end cap 1 and gas outlet 10, and is equipped with
Bracket 4 and urea nozzle 9.
The rear end cap 1, drive end bearing bracket 6 and cabinet 7 are double-layer structure, and heat-preservation cotton is filled between bilayer.
The DPF15 is detachable, and both ends are equipped with the differential pressure pickup 3 for the carbon content being storaged inside detection DPF, starts
Electromechanical sub-control unit starts dpf regeneration program according to carbon content.
The drive end bearing bracket temperature sensor 25 of detection DOC16 initiation temperature is installed on the drive end bearing bracket 6.
The SCR head temperature sensor 24 of detection SCR front end face temperature is provided on the SCR end cap 17, to electricity
Sub-control unit signal sprays urea in suitable temperature with determination.
NOx sensor 11, PM sensor 12 and the rear end SCR temperature sensor 13 are provided on the SCR rear end cap 22,
The middle rear end SCR temperature sensor 13 and SCR head temperature sensor 24 cooperate, the mean temperature being capable of detecting when inside SCR.
A kind of course of work or working principle of the diesel oil platform-type that DPF is removable post-processing assembly:
Engine exhaust enters from air inlet, enters in DOC from the aperture of partition, carries out oxidation reaction, the HC in exhaust gas
Nontoxic CO is oxidized to CO2And H2O, then air-flow enters DPF, is acted on, is filtered out in exhaust gas by the granule capturing of DPF
PM；Air-flow enters back into mixer, and when this is in suitable temperature, urea nozzle sprays urea liquid, passes through the work of mixer
With urea liquid and exhaust gas are sufficiently mixed the exhaust gas into pipeline, with urea and enter the end face SCR by end cap, are selected
Property reduction reaction, remove most NOx in removing exhaust gas, then by end cap and gas outlet, be discharged into atmosphere.
When dismantling DPF, dismountable cover plate need to be removed, then remove anchor ear, remove DPF later and carry out soot blowing and maintenance, knot
The road Shu Hou, Zai Yuan reinstalls.
The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model.All
According to the utility model in essence any simple modification, change and equivalence change to the above embodiments, this reality is still fallen within
In protection scope with new technique scheme.
Claims (8)
1. a kind of diesel oil platform-type that DPF is removable post-processes assembly, including rear end cap (1), air inlet (5), drive end bearing bracket (6), case
Body (7), the rear end SCR temperature sensor (13), anchor ear (14), DPF(15), DOC(16), SCR end cap (17), pipeline (18), SCR
Cylinder (19), mixer (20), deflector (21), SCR rear end cap (22) and partition (23), which is characterized in that the post-processing
Assembly connects into a cylinder, this cylinder and pipeline (18), SCR by anchor ear (14) in box, DPF(15) and DOC(16)
Body (19) is linked into an integrated entity by partition (23), forms inner assembly.
2. a kind of DPF according to claim 1 removable diesel oil platform-type post-processes assembly, which is characterized in that in described
The upper side of component is equipped with dismountable cover plate (2), cabinet (7) and single layer cabinet (8).
3. a kind of DPF according to claim 2 removable diesel oil platform-type post-processes assembly, which is characterized in that after described
Processing front end is welded with drive end bearing bracket (6) and SCR end cap (17), and rear end is welded with rear end cap (1) and gas outlet (10), and bracket is housed
(4) and urea nozzle (9).
4. a kind of DPF according to claim 1 removable diesel oil platform-type post-processes assembly, which is characterized in that after described
End cap (1), drive end bearing bracket (6) and cabinet (7) are double-layer structure, and heat-preservation cotton is filled between bilayer.
5. a kind of DPF according to claim 1 removable diesel oil platform-type post-processes assembly, which is characterized in that the DPF
(15) detachably, both ends are equipped with the differential pressure pickup (3) for the carbon content being storaged inside detection DPF, engine electronic control system
Unit starts dpf regeneration program according to carbon content.
6. a kind of DPF according to claim 1 removable diesel oil platform-type post-processes assembly, which is characterized in that before described
Be equipped on end cap (6) detection DOC(16) initiation temperature drive end bearing bracket temperature sensor (25).
7. a kind of DPF according to claim 1 removable diesel oil platform-type post-processes assembly, which is characterized in that the SCR
It is provided with the SCR head temperature sensor (24) of detection SCR front end face temperature on end cap (17), believes to electron control unit
Number with determination spray urea in suitable temperature.
8. a kind of DPF according to claim 1 removable diesel oil platform-type post-processes assembly, which is characterized in that the SCR
NOx sensor (11), PM sensor (12) and the rear end SCR temperature sensor (13) are provided on rear end cap (22), wherein after SCR
Temperature sensor (13) and SCR head temperature sensor (24) are held to cooperate, the mean temperature being capable of detecting when inside SCR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069829.5U CN209510425U (en) | 2019-01-16 | 2019-01-16 | A kind of diesel oil platform-type that DPF is removable post-processing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069829.5U CN209510425U (en) | 2019-01-16 | 2019-01-16 | A kind of diesel oil platform-type that DPF is removable post-processing assembly |
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| CN209510425U true CN209510425U (en) | 2019-10-18 |
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| CN201920069829.5U Active CN209510425U (en) | 2019-01-16 | 2019-01-16 | A kind of diesel oil platform-type that DPF is removable post-processing assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278421A (en) * | 2021-12-30 | 2022-04-05 | 东风康明斯排放处理系统有限公司 | Diesel oxidation catalyst converter temperature sensing system for emission treatment system |
-
2019
- 2019-01-16 CN CN201920069829.5U patent/CN209510425U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278421A (en) * | 2021-12-30 | 2022-04-05 | 东风康明斯排放处理系统有限公司 | Diesel oxidation catalyst converter temperature sensing system for emission treatment system |
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