CN101975102A - Pneumatic single-urea box full-deflating emptying pipeline SCR urea system - Google Patents
Pneumatic single-urea box full-deflating emptying pipeline SCR urea system Download PDFInfo
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- CN101975102A CN101975102A CN2010105131010A CN201010513101A CN101975102A CN 101975102 A CN101975102 A CN 101975102A CN 2010105131010 A CN2010105131010 A CN 2010105131010A CN 201010513101 A CN201010513101 A CN 201010513101A CN 101975102 A CN101975102 A CN 101975102A
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- urea
- control valve
- pressurized gas
- gas control
- box
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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 invention relates to a pneumatic single-urea box full-deflating emptying pipeline SCR urea system, which is characterized in that a urea liquid feed port, a temperature and liquid level sensor, a urea box pressure sensor and a heating pipeline are distributed on the upper surface of a urea box; compressed gas enters into a compressed gas pipeline I and a compressed gas pipeline III, and gas is deflated to a compressed gas solenoid valve B; a compressed gas control valve A, a compressed gas control valve B and a compressed gas control valve C are arranged in a compressed gas pipeline between an automobile air reservoir and the urea box; and a urea liquid filter is arranged in a urea liquid feed pipeline between the urea box and a urea liquid ejector; and an ECU signal controls the compressed gas control valve A, the compressed gas control valve B, the compressed gas control valve C and the urea liquid ejector. The invention has the advantages of thoroughly emptying the urea liquid in the pipelines of the system, and can reduce the system cost, break the situation that international suppliers monopolize the field, and give full play to the autonomic development superiority thereof.
Description
Technical field
The present invention relates to the full venting of the single urea box of a kind of pneumatic type and empty pipeline SCR urea system.
Background technique
Ripe at present direct spray type urea liquid is supplied with and ejecting system all is that offshore company produces, the employing diaphragm pump structure that has, the employing gear pump structure that has, pipeline empties and is the pump inverse inhalation type, empty not thoroughly, system complex, price are very high, all be system supply, disagree with that breaking system is the components supplying merchant.
Summary of the invention
The object of the present invention is to provide the full venting of the single urea box of a kind of pneumatic type to empty pipeline SCR urea system, it has reduced cost, breaks the situation that international suppliers monopolizes this field, gives full play to the advantage of independent development, is convenient to the layout of car load.
Technological scheme of the present invention is achieved in that the full venting of the single urea box of a kind of pneumatic type empties pipeline SCR urea system, by urea liquid filler, urea box, the water heating pipe line, urea liquid temp and liquid level signal, the atmospheric temperature signal, SCR inlet temperature signal 6, the NOx signal, the urea box pressure signal, the ECU control signal is divided into the signal I, the signal II, the signal III, the urea-spray device, urea-spray device cooling line, the urea box heat control valve, pressurized gas control valve A, pressurized gas control valve B, pressurized gas control valve C, pressurized gas pipeline I, pressurized gas pipeline II and pressurized gas pipeline III, the urea indusion tube, urea liquid filter cleaner is formed; It is characterized in that: arrange urea liquid filler above the urea box, temperature and liquid level sensor, the urea box pressure transducer, heating pipe line, pressurized gas enters pressurized gas pipeline I and pressurized gas pipeline III, exit to pressurized gas solenoid valve B, pressurized gas control valve A, pressurized gas control valve B, pressurized gas control valve C are located in the compressed air line between automobile gas receiver and the urea box, and urea liquid filter cleaner is located in the urea liquid supply pipeline between urea box and the urea fluid injector; ECU SC sigmal control pressurized gas control valve A, pressurized gas control valve B, three solenoid valves of pressurized gas control valve C and urea fluid injector.
Whether described ECU control signal is controlled the urea box heat control valve and is heated according to the atmospheric temperature and the urea box temperature information of input.
Described ECU control signal is judged whether needs filling urea liquid of urea box according to the urea box liquid level information of input.
Described ECU control signal is according to nominal data closes compression gas control valve A at first, open pressurized gas control valve B, closes compression gas control valve B when pressure is reduced to atmospheric pressure in the urea box, open pressurized gas control valve C simultaneously and open urea nozzle, empty the urea liquid in urea management and the filter cleaner, closes compression gas control valve C opens pressurized gas control valve B simultaneously then, emit closes compression gas control valve B behind this body of calming the anger in the urea box, empty and finish.
Good effect of the present invention is the urea liquid that thoroughly empties in the system pipeline, reduces system cost, breaks the situation that international suppliers monopolizes this field, gives full play to the advantage of independent development.
Description of drawings
Fig. 1 is a system schematic of the present invention.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing: the full venting of the single urea box of a kind of as shown in Figure 1 pneumatic type empties pipeline SCR urea system, by urea liquid filler 1, urea box 2, water heating pipe line 3, urea liquid temp and liquid level signal 4, atmospheric temperature signal 5, SCR inlet temperature signal 6, NOx signal 7, urea box pressure signal 10, the ECU control signal is divided into signal I 8, signal II 9, signal III 11, urea-spray device 12, urea-spray device cooling line 13, urea box heat control valve 16, pressurized gas control valve A 14, pressurized gas control valve B 20, pressurized gas control valve C 21, pressurized gas pipeline I 15, pressurized gas pipeline II 19 and pressurized gas pipeline III 22, urea indusion tube 17, urea liquid filter cleaner 18 is formed; It is characterized in that: arrange urea liquid filler 1 above the urea box, temperature and liquid level sensor 4, urea box pressure transducer 10, heating pipe line 3, pressurized gas enters pressurized gas pipeline I 15 and pressurized gas pipeline III 22, exit to pressurized gas solenoid valve B 20, pressurized gas control valve A 14, pressurized gas control valve B 20, pressurized gas control valve C 21 are located in the compressed air line 15 between automobile gas receiver and the urea box 2, and urea liquid filter cleaner 18 is located in the urea liquid supply pipeline 17 between urea box 2 and the urea fluid injector 12; ECU SC sigmal control pressurized gas control valve A 14, pressurized gas control valve B 20,21 3 solenoid valves of pressurized gas control valve C and urea fluid injector 12.
Whether described ECU control signal is controlled the urea box heat control valve and is heated according to the atmospheric temperature and the urea box temperature information of input.
Described ECU control signal is judged whether needs filling urea liquid of urea box according to the urea box liquid level information of input.
When the environment minimum temperature is lower than-11 ° of C car load powered-downs, ECU is according to nominal data closes compression gas control valve A 14 at first, open pressurized gas control valve B 20, closes compression gas control valve B 20 when pressure is reduced to atmospheric pressure in the urea box, open pressurized gas control valve C21 simultaneously and open urea nozzle, empty the urea liquid in urea management and the filter cleaner, closes compression gas control valve C21 then, open pressurized gas control valve B 20 simultaneously, emit closes compression gas control valve B 20 behind this body of calming the anger in the urea box, empty and finish.
Urea liquid in the urea box is according to the pressure of input deliver a letter breath and closes compression gas control valve A 14, pressurized gas control valve B 20, pressurized gas control valve C 21 by ECU, open urea-spray device 12, urea liquid arrives urea-spray device place by urea liquid filter cleaner 18 backs under the gas pressure effect like this, and the requirement of demarcating according to engine emission sprays in the outlet pipe effect of realization reduction NOx by the urea fluid injector.
Claims (4)
1. the full venting of the single urea box of pneumatic type empties pipeline SCR urea system, by urea liquid filler, urea box, the water heating pipe line, urea liquid temp and liquid level signal, the atmospheric temperature signal, SCR inlet temperature signal, the NOx signal, the urea box pressure signal, the ECU control signal is divided into the signal I, the signal II, the signal III, the urea-spray device, urea-spray device cooling line, the urea box heat control valve, pressurized gas control valve A, pressurized gas control valve B, pressurized gas control valve C, pressurized gas pipeline I, pressurized gas pipeline II and pressurized gas pipeline III, the urea indusion tube, urea liquid filter cleaner is formed; It is characterized in that: arrange urea liquid filler above the urea box, temperature and liquid level sensor, the urea box pressure transducer, heating pipe line, pressurized gas enters pressurized gas pipeline I and pressurized gas pipeline III, exit to pressurized gas solenoid valve B, pressurized gas control valve A, pressurized gas control valve B, pressurized gas control valve C are located in the compressed air line between automobile gas receiver and the urea box, and urea liquid filter cleaner is located in the urea liquid supply pipeline between urea box and the urea fluid injector; ECU SC sigmal control pressurized gas control valve A, pressurized gas control valve B, three solenoid valves of pressurized gas control valve C and urea fluid injector.
2. the full venting of the single urea box of pneumatic type according to claim 1 empties pipeline SCR urea system, it is characterized in that described ECU control signal controls the urea box heat control valve according to the atmospheric temperature of input and urea box temperature information and whether heat.
3. the single urea box of the pneumatic type according to claim 1 pigging road SC prime system system of exitting entirely is characterized in that described ECU control signal judges whether needs filling urea liquid of urea box according to the urea box liquid level information of input.
4. the full venting of the single urea box of pneumatic type according to claim 1 empties pipeline SCR urea system, it is characterized in that described ECU control signal is according to nominal data closes compression gas control valve A at first, open pressurized gas control valve B, closes compression gas control valve B when pressure is reduced to atmospheric pressure in the urea box, open pressurized gas control valve C simultaneously and open urea nozzle, empty the urea liquid in urea management and the filter cleaner, closes compression gas control valve C then, open pressurized gas control valve B simultaneously, emit closes compression gas control valve B behind this body of calming the anger in the urea box, empty and finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010513101.0A CN101975102B (en) | 2010-10-20 | 2010-10-20 | Pneumatic single-urea box full-deflating emptying pipeline SCR urea system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010513101.0A CN101975102B (en) | 2010-10-20 | 2010-10-20 | Pneumatic single-urea box full-deflating emptying pipeline SCR urea system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101975102A true CN101975102A (en) | 2011-02-16 |
| CN101975102B CN101975102B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010513101.0A Expired - Fee Related CN101975102B (en) | 2010-10-20 | 2010-10-20 | Pneumatic single-urea box full-deflating emptying pipeline SCR urea system |
Country Status (1)
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| CN (1) | CN101975102B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984227A (en) * | 2010-10-21 | 2011-03-09 | 中国第一汽车集团公司 | Pneumatic single-urea box full-air release clearing pipeline silicon controlled rectifier (SCR) urea system |
| CN103511039A (en) * | 2013-09-30 | 2014-01-15 | 天津亿利汽车环保科技有限公司 | Pneumatic type urea injection system |
| CN103511044A (en) * | 2013-09-30 | 2014-01-15 | 天津亿利汽车环保科技有限公司 | Scr temperature control system |
| CN106062330A (en) * | 2013-03-15 | 2016-10-26 | 康明斯知识产权公司 | Pump purge for urea dosing system |
| CN112576346A (en) * | 2020-12-02 | 2021-03-30 | 一汽解放汽车有限公司 | Exhaust control method of gas drive urea pump system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0928884A2 (en) * | 1998-01-08 | 1999-07-14 | Robert Bosch Gmbh | Mixture delivery device |
| EP1612381A1 (en) * | 2004-06-30 | 2006-01-04 | Iveco S.p.A. | System and method for injecting a liquid into a gas stream, exhaust gas treatment device and vehicle incorporating said device |
| WO2008152105A1 (en) * | 2007-06-12 | 2008-12-18 | Continental Automotive Gmbh | Urea dosing system for an internal combustion engine and a method and a device for dosing urea using the urea dosing system |
| CN101737127A (en) * | 2008-11-25 | 2010-06-16 | 无锡油泵油嘴研究所 | SCP urea injection system for post treatment of diesel engine emissions |
| CN101793183A (en) * | 2010-03-13 | 2010-08-04 | 中国第一汽车集团公司 | Jet control system utilizing air power to atomize urea reductant |
| CN101818675A (en) * | 2010-03-05 | 2010-09-01 | 苏州派格力减排系统有限公司 | Liquid storage tank pressurized urea solution metering injection system for diesel vehicle |
-
2010
- 2010-10-20 CN CN201010513101.0A patent/CN101975102B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0928884A2 (en) * | 1998-01-08 | 1999-07-14 | Robert Bosch Gmbh | Mixture delivery device |
| EP1612381A1 (en) * | 2004-06-30 | 2006-01-04 | Iveco S.p.A. | System and method for injecting a liquid into a gas stream, exhaust gas treatment device and vehicle incorporating said device |
| WO2008152105A1 (en) * | 2007-06-12 | 2008-12-18 | Continental Automotive Gmbh | Urea dosing system for an internal combustion engine and a method and a device for dosing urea using the urea dosing system |
| CN101737127A (en) * | 2008-11-25 | 2010-06-16 | 无锡油泵油嘴研究所 | SCP urea injection system for post treatment of diesel engine emissions |
| CN101818675A (en) * | 2010-03-05 | 2010-09-01 | 苏州派格力减排系统有限公司 | Liquid storage tank pressurized urea solution metering injection system for diesel vehicle |
| CN101793183A (en) * | 2010-03-13 | 2010-08-04 | 中国第一汽车集团公司 | Jet control system utilizing air power to atomize urea reductant |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984227A (en) * | 2010-10-21 | 2011-03-09 | 中国第一汽车集团公司 | Pneumatic single-urea box full-air release clearing pipeline silicon controlled rectifier (SCR) urea system |
| CN106062330A (en) * | 2013-03-15 | 2016-10-26 | 康明斯知识产权公司 | Pump purge for urea dosing system |
| CN106062330B (en) * | 2013-03-15 | 2018-12-14 | 康明斯知识产权公司 | Pump for urea dosing system is removed |
| CN103511039A (en) * | 2013-09-30 | 2014-01-15 | 天津亿利汽车环保科技有限公司 | Pneumatic type urea injection system |
| CN103511044A (en) * | 2013-09-30 | 2014-01-15 | 天津亿利汽车环保科技有限公司 | Scr temperature control system |
| CN103511044B (en) * | 2013-09-30 | 2015-12-02 | 天津亿利汽车环保科技有限公司 | Scr temperature control system |
| CN112576346A (en) * | 2020-12-02 | 2021-03-30 | 一汽解放汽车有限公司 | Exhaust control method of gas drive urea pump system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101975102B (en) | 2016-01-06 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20191020 |
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| CF01 | Termination of patent right due to non-payment of annual fee |