CN101975103A - Electronic-control urea pump water heating SCR urea system of pneumatic double urea box - Google Patents

Electronic-control urea pump water heating SCR urea system of pneumatic double urea box Download PDF

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Publication number
CN101975103A
CN101975103A CN2010105131044A CN201010513104A CN101975103A CN 101975103 A CN101975103 A CN 101975103A CN 2010105131044 A CN2010105131044 A CN 2010105131044A CN 201010513104 A CN201010513104 A CN 201010513104A CN 101975103 A CN101975103 A CN 101975103A
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CN
China
Prior art keywords
urea
control valve
pressurized gas
box
gas control
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.)
Pending
Application number
CN2010105131044A
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Chinese (zh)
Inventor
李骏
邢喜春
戈非
吴君华
尹燕升
纪英
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FAW Group Corp
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FAW Group Corp
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Publication date
Application filed by FAW Group Corp filed Critical FAW Group Corp
Priority to CN2010105131044A priority Critical patent/CN101975103A/en
Publication of CN101975103A publication Critical patent/CN101975103A/en
Pending legal-status Critical Current

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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
    • 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

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  • Exhaust Gas After Treatment (AREA)

Abstract

The invention relates to an electronic-control urea pump water heating SCR urea system of a pneumatic double urea box, which is characterized in that the volume of an assistant urea jar is 30-40L, and the assistant urea jar is provided with a urea liquid filling port, a temperature and liquid level sensor and a heating pipeline; a main urea box is a pressure vessel jar which is provided with a compressed air inlet path, a deflation compressed air control valve B, a pressure sensor and a heating pipeline; a compressed air control valve A, the compressed air control valve B and a compressed air control valve C are arranged in a compressed air pipeline between an automobile gas holder and the main urea box; a urea liquid filter is arranged in a urea liquid feed pipeline between the main urea box and a urea liquid ejector; and an ECU signal controls the compressed air control valve A, the compressed air control valve B, the compressed air control valve C and the urea liquid ejector. The invention has small gas consumption, can lower system cost, breaks through the situation that international suppliers monopolize the filed, and fully performs the advantage of autonomous development.

Description

The automatically controlled urea pump water heating of the two urea boxes of pneumatic type SCR urea system
Technical field
The present invention relates to the automatically controlled urea pump water heating of the two urea boxes of a kind of pneumatic type SCR urea system.
Background technique
Ripe at present urea liquid is supplied with and ejecting system all is that offshore company produces, the employing diaphragm pump structure that has, and the employing gear pump structure that has, system complex, price are very high, all are system supplys, disagree with that breaking system is the components supplying merchant.
Summary of the invention
The object of the present invention is to provide the two automatically controlled urea dispenser pump of urea box water heating SCR urea supplies of a kind of pneumatic type and ejecting system, reduce cost, break the situation that international suppliers monopolizes this field, give full play to the advantage of independent development, be convenient to the layout of car load.
Technological scheme of the present invention is achieved in that the automatically controlled urea pump water heating of the two urea boxes of a kind of pneumatic type SCR urea system, by urea liquid filler, auxilliary 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 ECU control signal is divided into the signal I, signal II and signal III, the urea-spray device, urea-spray device cooling line, main urea box, the urea dispenser pump, pressurized gas control valve A, pressurized gas control valve B, pressurized gas control valve C, gas piping a, gas piping b and gas piping c, the urea box heat control valve, the urea indusion tube, urea liquid filter cleaner is formed; It is characterized in that: auxilliary urea tank volume is 30L～40L, arranges urea liquid filler above, temperature and liquid level sensor, heating pipe line; Main urea box is a pressure volume pot, and main urea tank is provided with pressurized gas gas-entered passageway and venting pressurized gas control valve B, pressure transducer, heating pipe line; 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 main urea box; Urea liquid filter cleaner is located in the urea liquid supply pipeline between main 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 main and auxiliary 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 secondary urea box according to the urea box liquid level information of input.
Described ECU control signal determines according to nominal data whether needs add urea liquid to main urea box, in the time of need adding urea liquid, pressurized gas control valve B opens, pressurized gas control valve A and pressurized gas control valve C close, main urea box internal pressure is reduced to barometric pressure, the urea dispenser pump is opened, and urea liquid is pumped in the main urea box from auxilliary urea box, judges the operating time of urea dispenser pump according to main urea box internal pressure; ECU comes the switch of pressurized gas control valve A, pressurized gas control valve B, pressurized gas control valve C according to the information of demarcation and various inputs.
Good effect of the present invention is that air consumption is little, 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 automatically controlled urea pump water heating of the two urea boxes of a kind of as shown in Figure 1 pneumatic type SCR urea system, by urea liquid filler 1, auxilliary 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, the ECU control signal is divided into signal I 8, signal II 9 and signal III 11, urea-spray device 12, urea-spray device cooling line 13, main urea box 14, urea dispenser pump 15, pressurized gas control valve A16, pressurized gas control valve B22, pressurized gas control valve C23, gas piping a17, gas piping b10 and gas piping c21, urea box heat control valve 18, urea indusion tube 19, urea liquid filter cleaner 20 is formed; It is characterized in that: auxilliary urea tank volume is 30L～40L, arranges urea liquid filler 1 above, temperature and liquid level sensor 4, heating pipe line 3; Main urea box is a pressure volume pot, and main urea tank is provided with pressurized gas gas-entered passageway and venting pressurized gas control valve B22, pressure transducer, heating pipe line; Pressurized gas control valve A16, pressurized gas control valve B22, pressurized gas control valve C23 are located in the compressed air line 17 between automobile gas receiver and the main urea box; Urea liquid filter cleaner 20 is located in the urea liquid supply pipeline 19 between main urea box and the urea fluid injector 12; ECU SC sigmal control pressurized gas control valve A16, pressurized gas control valve B22, three solenoid valves of pressurized gas control valve C23 and urea fluid injector 12.
Whether described ECU control signal is controlled main and auxiliary 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 secondary urea box according to the urea box liquid level information of input.
Described ECU control signal determines according to nominal data whether needs add urea liquid to main urea box, in the time of need adding urea liquid, pressurized gas control valve B22 opens, pressurized gas control valve A16 and pressurized gas control valve C23 close, main urea box internal pressure is reduced to barometric pressure, urea dispenser pump 15 is opened, and urea liquid is pumped in the main urea box 14 from auxilliary urea box 2, judges the operating time of urea dispenser pump according to main urea box internal pressure; ECU comes the switch of pressurized gas control valve A16, pressurized gas control valve B22, pressurized gas control valve C23 according to the information of demarcation and various inputs.
The ECU control signal is controlled the working state of urea-spray device according to SCR inlet temperature, urea the temperature inside the box, ambient temperature, the urea box liquid level information of input.
The ECU control signal judges according to the input of NOx information whether vehicle satisfies the requirement of OBD, judges whether system works is normal, and carries out work according to the requirement of matching and calibration.
Urea liquid in the main urea box 14 is according to the pressure of input deliver a letter breath and closes compression gas control valve B22 and pressurized gas control valve C23 by the ECU control signal, open urea-spray device 12, urea liquid arrives urea-spray device place by urea liquid filter cleaner 20 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.
When the environment minimum temperature is lower than-11 ° of C car load powered-downs, under the control of ECU control signal, closes compression gas control valve A16 and pressurized gas control valve C23, open pressurized gas control valve B22 and discharge gas in the main urea box 14, closes compression gas control valve B22 then, then open and empty pressurized gas control valve C23, the urea liquid in the unlatching emptying urea system of control urea-spray device, closes compression gas control valve C23 then.

Claims (4)

1. the automatically controlled urea pump water of the two urea boxes of pneumatic type heats the SCR urea system, by urea liquid filler, auxilliary 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 ECU control signal is divided into the signal I, signal II and signal III, the urea-spray device, urea-spray device cooling line, main urea box, the urea dispenser pump, pressurized gas control valve A, pressurized gas control valve B, pressurized gas control valve C, gas piping a, gas piping b and gas piping c, the urea box heat control valve, the urea indusion tube, urea liquid filter cleaner is formed; It is characterized in that: auxilliary urea tank volume is 30L～40L, arranges urea liquid filler above, temperature and liquid level sensor, heating pipe line; Main urea box is a pressure volume pot, and main urea tank is provided with pressurized gas gas-entered passageway and venting pressurized gas control valve B, pressure transducer, heating pipe line; 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 main urea box; Urea liquid filter cleaner is located in the urea liquid supply pipeline between main 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 automatically controlled urea pump water heating of the two urea boxes of pneumatic type according to claim 1 SCR urea system is characterized in that described ECU control signal controls main and auxiliary urea box heat control valve according to the atmospheric temperature of input and urea box temperature information and whether heat.
3. the automatically controlled urea pump water heating of the two urea boxes of pneumatic type according to claim 1 SCR urea system is characterized in that described ECU control signal judges whether needs filling urea liquid of secondary urea box according to the urea box liquid level information of input.
4. the automatically controlled urea pump water heating of the two urea boxes of pneumatic type according to claim 1 SCR urea system, it is characterized in that described ECU control signal determines according to nominal data whether needs add urea liquid to main urea box, in the time of need adding urea liquid, pressurized gas control valve B opens, pressurized gas control valve A and pressurized gas control valve C close, main urea box internal pressure is reduced to barometric pressure, the urea dispenser pump is opened, urea liquid is pumped in the main urea box from auxilliary urea box, judges the operating time of urea dispenser pump according to main urea box internal pressure; ECU comes the switch of pressurized gas control valve A, pressurized gas control valve B, pressurized gas control valve C according to the information of demarcation and various inputs.
CN2010105131044A 2010-10-20 2010-10-20 Electronic-control urea pump water heating SCR urea system of pneumatic double urea box Pending CN101975103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105131044A CN101975103A (en) 2010-10-20 2010-10-20 Electronic-control urea pump water heating SCR urea system of pneumatic double urea box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105131044A CN101975103A (en) 2010-10-20 2010-10-20 Electronic-control urea pump water heating SCR urea system of pneumatic double urea box

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CN101975103A true CN101975103A (en) 2011-02-16

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102251832A (en) * 2011-06-10 2011-11-23 苏州派格力减排系统有限公司 Liquid heating type metering jet pump in SCR (selective catalytic reduction) system
CN102451617A (en) * 2010-10-20 2012-05-16 中国第一汽车集团公司 Pneumatic double urea tank electronically-controlled urea loading pump built-in filter SCR (silicon controlled rectifier) urea system
CN102688712A (en) * 2012-06-13 2012-09-26 安徽艾可蓝节能环保科技有限公司 Mixer for urea feeding unit
CN103403315A (en) * 2011-03-04 2013-11-20 罗伯特·博世有限公司 Exhaust gas aftertreatment system of an internal combustion engine and method for feeding a liquid into the exhaust tract of the internal combustion engine
CN104612793A (en) * 2015-01-20 2015-05-13 西南交通大学 Air pressure type urea metering spraying system easy to control
CN107461243A (en) * 2016-06-06 2017-12-12 天纳克（苏州）排放系统有限公司 Integrating device, exhaust gas aftertreatment system and control method
CN108661760A (en) * 2018-05-07 2018-10-16 广东绿谷净化设备有限公司 A kind of central control device and method of more SCR systems
CN112267930A (en) * 2020-11-30 2021-01-26 无锡亿利环保科技有限公司 Main and auxiliary urea device and urea supply mode

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5884475A (en) * 1994-09-13 1999-03-23 Siemens Aktiengesellschaft Method and device for introducing liquid into an exhaust-gas purification system
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
CN101084053A (en) * 2004-11-10 2007-12-05 罗伯特·博世有限公司 Dosing system and method for the operation of a dosing system
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5884475A (en) * 1994-09-13 1999-03-23 Siemens Aktiengesellschaft Method and device for introducing liquid into an exhaust-gas purification system
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
CN101084053A (en) * 2004-11-10 2007-12-05 罗伯特·博世有限公司 Dosing system and method for the operation of a dosing system
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

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102451617A (en) * 2010-10-20 2012-05-16 中国第一汽车集团公司 Pneumatic double urea tank electronically-controlled urea loading pump built-in filter SCR (silicon controlled rectifier) urea system
CN103403315A (en) * 2011-03-04 2013-11-20 罗伯特·博世有限公司 Exhaust gas aftertreatment system of an internal combustion engine and method for feeding a liquid into the exhaust tract of the internal combustion engine
CN103403315B (en) * 2011-03-04 2016-08-10 罗伯特·博世有限公司 The exhausted gas post-processing system of internal combustion engine and the method for engine exhaust gas post processing
CN102251832A (en) * 2011-06-10 2011-11-23 苏州派格力减排系统有限公司 Liquid heating type metering jet pump in SCR (selective catalytic reduction) system
CN102688712A (en) * 2012-06-13 2012-09-26 安徽艾可蓝节能环保科技有限公司 Mixer for urea feeding unit
CN104612793A (en) * 2015-01-20 2015-05-13 西南交通大学 Air pressure type urea metering spraying system easy to control
CN107461243A (en) * 2016-06-06 2017-12-12 天纳克（苏州）排放系统有限公司 Integrating device, exhaust gas aftertreatment system and control method
CN107461243B (en) * 2016-06-06 2023-09-15 天纳克（苏州）排放系统有限公司 Integrated device, exhaust gas aftertreatment system and control method
CN108661760A (en) * 2018-05-07 2018-10-16 广东绿谷净化设备有限公司 A kind of central control device and method of more SCR systems
CN112267930A (en) * 2020-11-30 2021-01-26 无锡亿利环保科技有限公司 Main and auxiliary urea device and urea supply mode

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Application publication date: 20110216