CN201865731U - Discharge post treatment system of light truck - Google Patents
Discharge post treatment system of light truck Download PDFInfo
- Publication number
- CN201865731U CN201865731U CN2010206415477U CN201020641547U CN201865731U CN 201865731 U CN201865731 U CN 201865731U CN 2010206415477 U CN2010206415477 U CN 2010206415477U CN 201020641547 U CN201020641547 U CN 201020641547U CN 201865731 U CN201865731 U CN 201865731U
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- CN
- China
- Prior art keywords
- urea
- pipe
- communicated
- urea tank
- post treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000004202 carbamide Substances 0.000 claims abstract description 53
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 230000008676 import Effects 0.000 claims description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 description 6
- 238000012958 reprocessing Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to a discharge post treatment system of a light truck, which comprises a front exhaust pipe, a post treatment device and a urea tank, wherein a heat insulation casing is arranged outside the urea tank, one side of the urea tank is provided with a urea pump, an inlet of the urea pump is communicated with the urea tank, an outlet of the urea pump is communicated with a spray nozzle through a urea pipe, in addition, the spray nozzle is positioned in the middle part of the front exhaust pipe, one side of the heat insulation casing of the urea tank is communicated with a water inlet pipe, the other side of the heat insulation casing is communicated with a water return pipe, and a spray nozzle cooling pipe is communicated onto the water inlet pipe through a three-way pipe and is surrounded outside the spray nozzle. Through adopting the post treatment technology of a urea tank mechanism, i.e. through the chemical reaction principle of the urea, harmful gas nitrogen oxide is converted into nitrogen and water. Through the arrangement of the heat insulation casing, the water inlet pipe and the water return pipe, the problems that the urea is frozen in winter and is easy to volatilize in summer are perfectly solved. Whether the post treatment system fails or not is judged through a whole vehicle monitoring system, and the problem of difficult control of discharge and use consistency is solved.
Description
Technical field
The utility model belongs to the light truck technical field, is specifically related to the discharge post-treatment system of light truck.
Background technique
The reprocessing structure of motor vehicle emission is that car load is realized a kind of treatment measures that more maximum discharge requires, the quality of reprocessing structure matching, directly influence the realization situation of discharging and the working life of after-treatment system, its function and design principle mainly contain: adopt what principle, whether the car load practical application has any problem, the long-term conformity of using how, and satisfy under the prerequisite of usage requirement simple in structure as far as possible, under the prerequisite that guarantees its performance, also to note following aspect: 1 at itself characteristic, because light truck often needs at rugged environment (as the mine, country) work in is so require the reprocessing structure to have good antivibration, effectiveness in vibration suppression.2, as the part of commodity, require satisfying under the prerequisite of usage requirement simple in structurely as far as possible, possess aesthetic effect.
The reprocessing structure of using on the present domestic light truck adds granular pattern catalyst converter (POC) technology path based on oxidation catalyst (DOC), its advantage is that cost is relatively low, but to oil product have relatively high expectations (oil product reaches state's IV standard, and wherein Sulpher content is less than 50ppm).(can only reach state's III standard at present and domestic oil product is relatively poor relatively, wherein Sulpher content is greater than 350ppm), if adopt oxidation catalyst (DOC) to add the technology path of granular pattern catalyst converter (POC), the sulphate that sulphur produces at high temperature is viscous liquid, the filter of as easy as rolling off a log obstruction after-treatment system, thus its disabler caused.In addition, oxidation catalyst (DOC) adds that the after-treatment system power of regeneration of granular pattern catalyst converter (POC) is relatively poor relatively, needs frequent replacing associated part, brings a lot of inconveniences to the user.
Summary of the invention
At the relatively poor relatively present situation of present domestic oil product, the utility model provides a kind of discharge post-treatment system of a kind of light truck to the less demanding improvement structure of Sulpher content in the fuel oil.
A kind of discharge post-treatment system of light truck comprises front exhaust pipe 1 and preprocessor 9, and the outlet of front exhaust pipe 1 is being communicated with the import of preprocessor 9; Also comprise urea tank 13, urea tank 13 outsides are provided with insulation shell; One side of described urea tank 13 is provided with urea pump 12, and the import of urea pump 12 is being communicated with urea tank 13, and the outlet of urea pump 12 is being communicated with urea pipe 3, and the other end of urea pipe 3 is provided with nozzle, and nozzle is positioned at front exhaust pipe 1 middle part; Insulation shell one side of described urea tank 13 is being communicated with intake pipe 2, and opposite side is being communicated with return pipe 11; Be communicated with nozzle cooling tube 4 by three-way pipe on the described intake pipe 2, nozzle cooling tube 4 is looped around the nozzle outside; Temperature transducer 5 and back temperature transducer 6 also were provided with NOx sensor 7 before the front and rear of preprocessor 9 was respectively equipped with.
The utility model is suitable for the vehicle use that domestic light truck is realized state's IV, state's V emission request.By adopting the less demanding selective reduction of Sulpher content in the fuel oil (SCR) post-processing technology, promptly the chemical principle by urea is converted into nitrogen (N2) and water (H2O) with harmful gas nitrogen oxide (NOx).Setting by insulation shell, intake pipe and return pipe has solved winter urea well and has frozen the volatile problem of urea in summer.Judge by the car load monitoring system whether after-treatment system lost efficacy, solve discharging and use the difficult problem of conformity control improved the confidence level of car load discharging greatly, whether the effect of monitoring is constantly played in environmental protection to automobile.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the plan view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1 and Fig. 2, a kind of discharge post-treatment system of light truck comprises front exhaust pipe 1 and preprocessor 9, and the outlet of front exhaust pipe 1 is being communicated with the import of preprocessor 9, and preprocessor 9 is installed on the vehicle frame by fore poppet 8 and back poppet 10; Temperature transducer 5 and back temperature transducer 6 also were equipped with NOx sensor 7 before the front and rear of preprocessor 9 was separately installed with.
Also comprise urea tank 13, urea tank 13 outsides are provided with insulation shell; One side of urea tank 13 is provided with urea pump 12, and the import of urea pump 12 is being communicated with urea tank 13, and the outlet of urea pump 12 is being communicated with urea pipe 3, and the other end of urea pipe 3 is equipped with nozzle, and nozzle is positioned at front exhaust pipe 1 middle part.Insulation shell one side of urea tank 13 is being communicated with intake pipe 2, and opposite side is being communicated with return pipe 11; Be communicated with nozzle cooling tube 4 by three-way pipe on the intake pipe 2, nozzle cooling tube 4 is looped around the outside of nozzle.
Waste gas behind the engine combustion flows into preprocessor 9 by front exhaust pipe 1, contains the strict nitrogen oxide harmful gas of investigating of motor vehicle emission in the waste gas, and the utility model is that the nitrogen oxide harmful gas is converted into nitrogen and water, has effectively improved the car load emission behaviour.
During this device work, the reprocessing control system is by preceding temperature transducer 5 and back temperature transducer 6 feedacks, and instruction urea pump 12 is transported to nozzle from urea tank 13 by urea pipe 3 with urea, sprays in the front exhaust pipe 1 by nozzle.Because nozzle place temperature than higher, is cooled off nozzle so introduce cooling water by nozzle cooling tube 4.In addition, 32% urea liquid is understood crystallization in time below-10 ℃, introduces the engine cycles liquid to the heating of the urea liquids in the urea tank 13 by the intake pipe 2 and the return pipe 11 that are being communicated with on urea tank 13 insulation shells in this device.At the motor run duration, constantly monitor nitrogen oxide (NOx) gas by NOx sensor 7 and whether exceed standard, and feed back to the car load monitoring system.
Claims (1)
1. the discharge post-treatment system of a light truck comprises front exhaust pipe (1) and preprocessor (9), and the outlet of front exhaust pipe (1) is being communicated with the import of preprocessor (9), it is characterized in that:
Also comprise urea tank (13), urea tank (13) outside is provided with insulation shell; One side of described urea tank (13) is provided with urea pump (12), the import of urea pump (12) is being communicated with urea tank (13), the outlet of urea pump (12) is being communicated with urea pipe (3), and the other end of urea pipe (3) is provided with nozzle, and nozzle is positioned at front exhaust pipe (1) middle part; Insulation shell one side of described urea tank (13) is being communicated with intake pipe (2), and opposite side is being communicated with return pipe (11); Described intake pipe (2) is gone up and is being communicated with nozzle cooling tube (4) by three-way pipe, and nozzle cooling tube (4) is looped around the nozzle outside; The front and rear of preprocessor (9) is respectively equipped with preceding temperature transducer (5) and back temperature transducer (6), also is provided with NOx sensor (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206415477U CN201865731U (en) | 2010-12-06 | 2010-12-06 | Discharge post treatment system of light truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206415477U CN201865731U (en) | 2010-12-06 | 2010-12-06 | Discharge post treatment system of light truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201865731U true CN201865731U (en) | 2011-06-15 |
Family
ID=44136888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206415477U Expired - Fee Related CN201865731U (en) | 2010-12-06 | 2010-12-06 | Discharge post treatment system of light truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201865731U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291424A (en) * | 2013-06-13 | 2013-09-11 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Heating unfreezing device of reducing-agent supply unit |
| CN103291425A (en) * | 2013-07-05 | 2013-09-11 | 赵栋 | Connecting method for selective catalytic reduction (SCR) urea supply system assembly for vehicle |
| CN105121800A (en) * | 2013-02-13 | 2015-12-02 | 大陆汽车有限责任公司 | Method for providing a liquid additive |
| CN105863796A (en) * | 2016-05-18 | 2016-08-17 | 安徽江淮汽车股份有限公司 | Post-processing sensor module mounting structure |
| CN106523094A (en) * | 2016-12-29 | 2017-03-22 | 雷沃重工股份有限公司 | Control device for adjusting SCR temperature and agricultural machinery |
| CN108798843A (en) * | 2018-05-31 | 2018-11-13 | 安徽江淮汽车集团股份有限公司 | A kind of vehicle exhaust system |
| CN111188673A (en) * | 2019-12-20 | 2020-05-22 | 潍柴动力股份有限公司 | Urea injection system and control method |
-
2010
- 2010-12-06 CN CN2010206415477U patent/CN201865731U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105121800A (en) * | 2013-02-13 | 2015-12-02 | 大陆汽车有限责任公司 | Method for providing a liquid additive |
| US9909477B2 (en) | 2013-02-13 | 2018-03-06 | Continental Automotive Gmbh | Method for providing a liquid additive |
| CN103291424A (en) * | 2013-06-13 | 2013-09-11 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Heating unfreezing device of reducing-agent supply unit |
| CN103291424B (en) * | 2013-06-13 | 2015-12-09 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | A kind of heating thawing apparatus of reducing agent feeding unit |
| CN103291425A (en) * | 2013-07-05 | 2013-09-11 | 赵栋 | Connecting method for selective catalytic reduction (SCR) urea supply system assembly for vehicle |
| CN105863796A (en) * | 2016-05-18 | 2016-08-17 | 安徽江淮汽车股份有限公司 | Post-processing sensor module mounting structure |
| CN106523094A (en) * | 2016-12-29 | 2017-03-22 | 雷沃重工股份有限公司 | Control device for adjusting SCR temperature and agricultural machinery |
| CN108798843A (en) * | 2018-05-31 | 2018-11-13 | 安徽江淮汽车集团股份有限公司 | A kind of vehicle exhaust system |
| CN111188673A (en) * | 2019-12-20 | 2020-05-22 | 潍柴动力股份有限公司 | Urea injection system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: The east area of Baohe District of Hefei city in Anhui province 230022 No. 176 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20191206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |