CN204003018U - A kind of heavy goods vehicles catalytic convention design - Google Patents
A kind of heavy goods vehicles catalytic convention design Download PDFInfo
- Publication number
- CN204003018U CN204003018U CN201420363507.9U CN201420363507U CN204003018U CN 204003018 U CN204003018 U CN 204003018U CN 201420363507 U CN201420363507 U CN 201420363507U CN 204003018 U CN204003018 U CN 204003018U
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- CN
- China
- Prior art keywords
- carrier block
- urea
- catalytic
- outlet pipe
- heavy goods
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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
- Y02T10/40—Engine management systems
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- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model heavy goods vehicles catalytic convention design, comprise the suppressor case that is connected in waste pipe, be installed on outlet pipe tail end, be installed on the tailpipe of suppressor case tail end and be installed on the catalytic converter in suppressor case, in outlet pipe, be provided with urea nozzle, urea nozzle is connected in urea box by the road, catalytic converter comprise some made by cordierite ceramic for apply catalytic component based on vanadium carrier block, be wrapped in the housing that is tubular of the both ends open of carrier block periphery, in carrier block, be provided with some open-works.Urea nozzle is mapped to the spraying urea liquid in urea box in outlet pipe, after mixing, the tail gas producing with engine combustion after its atomization flows in suppressor case, and enter in catalytic converter, because carrier block is coated with catalytic component based on vanadium, therefore urea flows through the open-work in carrier block and reacts under the effect of catalytic component based on vanadium with the mixture of tail gas, thereby has reduced the nitrogen oxide in tail gas.
Description
Technical field
The utility model relates to engine exhaust technical field, is specifically related to a kind of heavy goods vehicles catalytic convention design.
Background technique
The formation of diesel-oil vehicle fuel mixture is carried out engine combustion is indoor, and diesel oil high pressure sprays into firing chamber, carries out the diffusion combustion mode of spray limit, limit burning after compression ignition.This working method, has determined that diesel oil and mixing of air are inhomogeneous, inevitably has local anoxic or local oxygen enrichment situation.Oil plant is in the time of high temperature anoxic, and easily charing forms soot.The adjusting of diesel-oil vehicle load is controlled by changing fuel injection quantity.Diesel-oil vehicle mixed gas all the time under rarer state, that is to say in the firing chamber of diesel engine and has all the time air more than needed.These air more than needed easily produce nitrogen oxide (NOx) under high temperature action, and carbon monoxide (CO) and hydrocarbon (HC) are not easy to form.Therefore, emission of diesel engine feature is that particulate matter and nitrogen oxide (NOx) discharge amount are many and carbon monoxide (CO) and hydrocarbon (HC) discharge amount are few.
The tail gas that contains nitrogen oxide after the engine combustion of existing heavy goods vehicles does not directly enter atmosphere by vent systems after treatment, has caused the pollution of environment.
Summary of the invention
The utility model, in order to overcome the deficiency of above technology, provides a kind of heavy goods vehicles catalytic convention design of effective reduction engine nox emission.
The utility model overcomes the technological scheme that its technical problem adopts:
Catalytic convention design for this heavy goods vehicles, comprise the suppressor case that is connected in waste pipe, be installed on outlet pipe tail end, be installed on the tailpipe of suppressor case tail end and be installed on the catalytic converter in suppressor case, in described outlet pipe, be provided with urea nozzle, described urea nozzle is connected in urea box by the road, described catalytic converter comprise some made by cordierite ceramic for apply catalytic component based on vanadium carrier block, be wrapped in the housing that is tubular of the both ends open of carrier block periphery, in described carrier block, be provided with some open-works.
Play spray in order to control uremic, also comprise the temperature transducer being installed in outlet pipe, described temperature transducer is electrically connected on DCU control unit.
In order to measure nitrogen oxide emission, also comprise the nitrogen oxide sensor being installed in tailpipe, described nitrogen oxide sensor is electrically connected on vehicle ECU.
In order to prevent from damaging carrier block, between above-mentioned carrier block and housing, be provided with liner.
In order to improve water absorption rate and to keep good intensity, the gap between each open-work of above-mentioned carrier block is 1.27mm.
The beneficial effects of the utility model are: urea nozzle is mapped to the spraying urea liquid in urea box in outlet pipe, after mixing, the tail gas producing with engine combustion after its atomization flows in suppressor case, and enter in catalytic converter, because carrier block is coated with catalytic component based on vanadium, therefore urea flows through the open-work in carrier block and reacts under the effect of catalytic component based on vanadium with the mixture of tail gas, thereby reduce the nitrogen oxide in tail gas, thereby guaranteed that tail gas meets environmental protection standard while discharge from tailpipe.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is catalytic converter cross-sectional view;
In figure, 1. motor 2. outlet pipe 3. urea nozzle 4. suppressor case 5. temperature transducer 6. catalytic converter 7. nitrogen oxide sensor 8. tailpipe 9. carrier block 10. liner 11. housings.
Embodiment
Below in conjunction with accompanying drawing 1, accompanying drawing 2, the utility model is described further.
Catalytic convention design for this heavy goods vehicles, comprise be connected in motor 1 outlet pipe 2, be installed on outlet pipe 2 tail ends suppressor case 4, be installed on the tailpipe 8 of suppressor case 4 tail ends and be installed on the catalytic converter 6 in suppressor case 4, in outlet pipe 2, be provided with urea nozzle 3, urea nozzle 3 is connected in urea box by the road, catalytic converter 6 comprise some made by cordierite ceramic for apply catalytic component based on vanadium carrier block 9, be wrapped in the housing that is tubular 11 of the both ends open of carrier block 9 peripheries, in carrier block 9, be provided with some open-works.Urea nozzle 3 is mapped to the spraying urea liquid in urea box in outlet pipe 2, after mixing, the tail gas producing with motor 1 burning after its atomization flows in suppressor case 4, and enter in catalytic converter 6, because carrier block 9 is coated with catalytic component based on vanadium, therefore urea flows through the open-work in carrier block 9 and reacts under the effect of catalytic component based on vanadium with the mixture of tail gas, thereby reduce the content of the nitrogen oxide in tail gas, thereby guaranteed that tail gas meets environmental protection standard while discharge from tailpipe 8.
Can also comprise the temperature transducer 5 being installed in outlet pipe 2, temperature transducer 5 is electrically connected on DCU control unit.Temperature transducer 5 is monitored the temperature value in outlet pipe 2 in real time, and temperature value is fed back to DCU control unit, and temperature is sprayed in rising of DCU control unit control urea, to reach better work requirements.
Can also comprise the nitrogen oxide sensor 7 being installed in tailpipe 8, nitrogen oxide sensor 7 is electrically connected on vehicle ECU.Nitrogen oxide sensor can be monitored the amount of nitrogen oxides through catalytic converter 6 tail gas after treatment in tailpipe 8 in real time, and by measurement feedback to vehicle ECU, if too high levels ECU can control the alarm indication of bridge instrumentation platform, to remind in time driver to process.
Between carrier block 9 and housing 11, can be provided with liner 10, liner 10 can effectively prevent carrier block 9 damage in the time of vibrations, has improved the reliability using.Gap between each open-work of carrier block 9 is 1.27mm.Now carrier block also possesses higher mechanical strength in possessing good water absorption rate, has improved working life.
Claims (5)
1. a heavy goods vehicles catalytic convention design, it is characterized in that: comprise the outlet pipe (2) that is connected in motor (1), be installed on the suppressor case (4) of outlet pipe (2) tail end, be installed on the tailpipe (8) of suppressor case (4) tail end and be installed on the catalytic converter (6) in suppressor case (4), in described outlet pipe (2), be provided with urea nozzle (3), described urea nozzle (3) is connected in urea box by the road, described catalytic converter (6) comprise some made by cordierite ceramic for applying the carrier block (9) of catalytic component based on vanadium, be wrapped in the housing that is tubular (11) of the peripheral both ends open of carrier block (9), described carrier block is provided with some open-works on (9).
2. heavy goods vehicles catalytic convention design according to claim 1, is characterized in that: also comprise the temperature transducer (5) being installed in outlet pipe (2), described temperature transducer (5) is electrically connected on DCU control unit.
3. heavy goods vehicles catalytic convention design according to claim 1, is characterized in that: also comprise the nitrogen oxide sensor (7) being installed in tailpipe (8), described nitrogen oxide sensor (7) is electrically connected on vehicle ECU.
4. according to the heavy goods vehicles catalytic convention design described in claim 1 or 2 or 3, it is characterized in that: between described carrier block (9) and housing (11), be provided with liner (10).
5. heavy goods vehicles catalytic convention design according to claim 4, is characterized in that: the gap between each open-work of described carrier block (9) is 1.27mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363507.9U CN204003018U (en) | 2014-07-03 | 2014-07-03 | A kind of heavy goods vehicles catalytic convention design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363507.9U CN204003018U (en) | 2014-07-03 | 2014-07-03 | A kind of heavy goods vehicles catalytic convention design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003018U true CN204003018U (en) | 2014-12-10 |
Family
ID=52043036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420363507.9U Active CN204003018U (en) | 2014-07-03 | 2014-07-03 | A kind of heavy goods vehicles catalytic convention design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003018U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047687A (en) * | 2014-07-03 | 2014-09-17 | 中国重汽集团济南动力有限公司 | Catalytic conversion device for heavy-duty vehicle |
| CN105201603A (en) * | 2015-10-20 | 2015-12-30 | 西华大学 | Urea spraying device for diesel exhaust aftertreatment |
-
2014
- 2014-07-03 CN CN201420363507.9U patent/CN204003018U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047687A (en) * | 2014-07-03 | 2014-09-17 | 中国重汽集团济南动力有限公司 | Catalytic conversion device for heavy-duty vehicle |
| CN105201603A (en) * | 2015-10-20 | 2015-12-30 | 西华大学 | Urea spraying device for diesel exhaust aftertreatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |