CN102032029A - Urea solution supplying and spraying system - Google Patents
Urea solution supplying and spraying system Download PDFInfo
- Publication number
- CN102032029A CN102032029A CN2009102177240A CN200910217724A CN102032029A CN 102032029 A CN102032029 A CN 102032029A CN 2009102177240 A CN2009102177240 A CN 2009102177240A CN 200910217724 A CN200910217724 A CN 200910217724A CN 102032029 A CN102032029 A CN 102032029A
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- urea
- control valve
- liquid
- box
- pump
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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
- Y02T10/40—Engine management systems
Abstract
The invention relates to a urea solution supplying and spraying system which is characterized in that a urea box module comprises a urea box, a filter screen, a urea solution filling hole, an inlet valve, an exhaust valve and a temperature and liquid level sensor, wherein the urea box is provided with the inlet valve, the exhaust valve and the urea solution filling hole; the filter screen and the temperature and liquid level sensor are installed in the urea box; a and b on a urea pump are provided with two position control switches and eight solenoid valve switches to form a urea solution pump module; a urea solution filter is provided with a pressure sensor arranged on a urea solution supply pipe of the filter screen on the urea box and a urea solution sprayer; two groups of urea solution control valves (1-4) which are controlled by electronic control unit (ECU) signals and start and stop alternately are connected on the urea solution supply pipe in parallel; the position control switches at a and b on the urea pump are also connected with two groups of compressed air control valves controlled by an ECU; and the ECU controls a cooling liquid control valve to open and close according to the input urea box temperature information. The system has the effects of lowering the system cost, breaking the situation that the field is monopolized by the international suppliers and giving full play to the advantage of independent development.
Description
Technical field:
The present invention relates to a kind of urea liquid supplies with and ejecting system.
Background technique:
Ripe at present urea liquid is supplied with and ejecting system all is that offshore company produces, and all adopts the diaphragm pump structure, and price is very high, all is system supply, disagrees with that breaking system is the components supplying merchant.
Summary of the invention:
The object of the present invention is to provide a kind of urea liquid to supply with and ejecting system, reduce cost, break the situation that international suppliers monopolizes this field, give full play to the advantage of independent development.
Technological scheme of the present invention is achieved in that supply of urea liquid and ejecting system, is made up of urea box module, heating pipe line and control valve, urea liquid supply pipeline, urea-spray device cooling liquid pipeline, compressed air line, urea liquid pump module, urea liquid filter cleaner, urea fluid injector, ECU; It is characterized in that: the urea box module is made up of urea box, filter screen, urea liquid filler, suction valve, outlet valve, temperature and liquid level sensor; Urea box is provided with suction valve, outlet valve and urea liquid filler, and filter screen, temperature and liquid level sensor are installed in the urea box; Urea liquid pump module by a on the urea pump and b be provided with two positions control switches, 8 electromagnetic valve switch are formed, the setting pressure sensor is located on the urea liquid supply pipeline of the filter screen of urea box and urea fluid injector on the urea liquid filter cleaner; Be parallel with the ECU SC sigmal control two groups on the urea liquid supply pipeline and intersect the urea hydraulic control valve 1-4 that opens and closes; Being provided with pipeline between control valve 1 and control valve 2 links to each other with a on the urea pump, establishing pipeline between control valve 3 and the control valve 4 links to each other with b on the urea pump, also be connected with two groups of compressed air control valves on the position control switch of a on the urea pump and b by ECU control, wherein compressed air control valve is connected with control valve 5 and 6, and control valve 7 is connected with the ECU signal with the atmosphere pipeline with 8 series connection; ECU controls the switch of cooling water control valve according to the urea box temperature information of control signal input.
Whether ECU controls heating pipe line according to the atmospheric temperature signal of input and heats.
ECU comes the switch of control electromagnetic valve according to input position control switching information.
ECU judges according to the urea pressure signal of input whether system is working properly.
Whether ECU adds urea according to the urea box liquid level and the temperature signal prompting driver of input.
ECU controls the work of urea-spray device according to SCR inlet temperature, urea box temperature, ambient temperature, urea pressure signal, urea box liquid level and the temperature signal of input.
ECU judges according to the input of NOx signal whether vehicle satisfies the requirement of OBD and carry out work according to the program of car load matching and calibration.
Good effect of the present invention is: reduce system cost, break the situation that international suppliers monopolizes this field, give full play to the advantage of independent development.
Description of drawings:
Fig. 1 is a system schematic of the present invention
Fig. 2 is that a end sucks the schematic representation of b end compression simultaneously under the working state of the present invention;
Fig. 3 is that the b end sucks the schematic representation of a end compression simultaneously under the working state of the present invention;
Fig. 4 is the schematic representation that sucks the compression of while b end for a end under the emptying state of the present invention;
Fig. 5 is the schematic representation that sucks the compression of while a end for b end under the emptying state of the present invention;
Embodiment:
The present invention will be further described below in conjunction with accompanying drawing: as shown in Figure 1, urea liquid is supplied with and ejecting system, is made up of urea box module, heating pipe line and control valve, urea liquid supply pipeline, urea-spray device cooling liquid pipeline 20, compressed air line 16, urea liquid pump module, urea liquid filter cleaner 19, urea fluid injector 22, ECU; It is characterized in that: the urea box module is made up of urea box, filter screen 13, urea liquid filler 9, suction valve 11, outlet valve 10, temperature and liquid level sensor 14; Urea box is provided with suction valve 11, outlet valve 10 and urea liquid filler 9, and filter screen 13, temperature and liquid level sensor 14 are installed in the urea box; Urea liquid pump module by a on the urea pump 18 and b be provided with two positions control switches, 8 electromagnetic valve switch are formed, the setting pressure sensor is located on the urea liquid supply pipeline of the filter screen 13 of urea box and urea fluid injector 22 on the urea liquid filter cleaner 19; Be parallel with the ECU SC sigmal control two groups on the urea liquid supply pipeline and intersect the urea hydraulic control valve 1-4 that opens and closes; Link to each other with a on the urea pump 18 being provided with pipeline between control valve 1 and the control valve 2, establishing pipeline between control valve 3 and the control valve 4 links to each other with b on the urea pump 18, also be connected with two groups of compressed air control valves 16 on the position control switch of a on the urea pump 18 and b by ECU control, wherein compressed air control valve 16 is connected with control valve 5 and 6, and control valve 7 is connected with the ECU signal with atmosphere pipeline 17 with 8 series connection; ECU controls the switch of cooling water control valve 12 according to the urea box temperature information of control signal 15 inputs.
Whether ECU controls heating pipe line according to the atmospheric temperature signal 23 of input and heats.
ECU controls the switch of 1～8 solenoid valve according to input position control switching information.
ECU judges according to the urea pressure signal 21 of input whether system is working properly.
Whether ECU adds urea according to the urea box liquid level and the temperature signal 14 prompting drivers of input.
ECU controls the work of urea-spray device according to SCR inlet temperature 24, urea box temperature, ambient temperature, urea pressure signal 21, urea box liquid level and the temperature signal 14 of input.
ECU judges according to the input of NOx signal 25 whether vehicle satisfies the requirement of OBD and carry out work according to the program of car load matching and calibration.
Urea liquid in the urea box is 1～No. 4 urea hydraulic control valve and 5～No. 8 compressed air control valves to be controlled according to the signal of a on the urea pump 18, position, b two ends control switch by ECU, under the effect of urea pump 18 pistons, sucked respectively by the urea liquid pipeline among a, b cylinder of urea liquid pump 18, and the out of Memory of requirement of demarcating according to engine emission and ECU input through urea liquid filter cleaner 19 after, spray in the outlet pipe by urea fluid injector 22, realize reducing the effect of NOx.
Under the working state as shown in Figure 2, the cylinder a of urea pump 18 end sucks when the cylinder b end of urea pump 18 compresses simultaneously; Logical, the control valve 2 of control valve 1 this moment closes, and control valve 3 closes, and control valve 4 is logical; Control valve 5 closes, control valve 6 is logical, control valve 7 is logical, control valve 8 closes, urea box is communicated with the cylinder a of urea pump 18, urea pump 18 cylinder a end sucks urea liquid from urea box under the effect of spring force, the cylinder b end of urea pump 18 presses down urea liquid in compressed-air actuated effect, when urea liquid need be sprayed in system, urea-spray device 22 sends the working state of command control urea-spray device 22 under the information of ECU according to All aspects of, reach the requirement of engine aftertreatment system to supply of urea liquid and ejecting system.
When the cylinder b of urea pump 18 end urea liquid is used up, this moment, urea liquid pump inner carrier touched the cylinder b end position control switch of urea pump, and ECU receives information and sends instruction the urea liquid pump is transformed into as shown in Figure 3 state.
Under the working state as shown in Figure 3, the cylinder b of urea pump 18 end sucks the cylinder a end compression of urea pump 18 simultaneously; Control valve 1 pass, control valve 2 lead at this moment, and control valve 3 is logical, and control valve 4 closes; Control valve 5 is logical, control valve 6 closes, control valve 7 closes, control valve 8 is logical, urea box is communicated with the cylinder b of urea pump 18, the cylinder b end of urea pump 18 sucks urea liquid from urea box under the effect of spring force, the cylinder a end of urea pump 18 presses down urea liquid in compressed-air actuated effect, when urea liquid need be sprayed in system, urea-spray device 22 sends the working state of command control urea-spray device 22 under the information of ECU according to All aspects of, reach the requirement of engine aftertreatment system to supply of urea liquid and ejecting system.
When the cylinder a of urea pump 18 end urea liquid is used up, this moment, urea liquid pump inner carrier touched the cylinder a end position control switch of urea pump 18, and ECU receives information and sends instruction the urea liquid pump is transformed into as shown in Figure 2 state.
Under the emptying state as shown in Figure 4, the cylinder a of urea pump 18 end sucks the cylinder b end compression of urea pump 18 simultaneously; Control valve 1 pass, control valve 2 lead at this moment, and control valve 3 is logical, and control valve 4 closes; Control valve 5 closes, control valve 6 is logical, control valve 7 is logical, control valve 8 closes, and the cylinder b of urea box and urea pump 18 is logical, and the cylinder a end of urea pump 18 sucks urea liquid from system under the effect of spring force, in inhaling urea liquid process, ECU control urea-spray device 22 is in opening state, guarantees that the cylinder a end of urea pump is held the cylinder a that the urea liquid in the system sucks urea pump 18, and this moment, the cylinder b end of urea pump pressed down urea liquid in urea box in compressed-air actuated effect.
When the cylinder b of urea pump 18 end urea liquid drains, this moment, urea liquid pump inner carrier touched the cylinder b end position control switch of urea pump 18, and ECU receives information and sends instruction the urea liquid pump is transformed into as shown in Figure 5 state.
Under the emptying state as shown in Figure 5, the cylinder b of urea pump 18 end sucks the cylinder a end compression of urea pump 18 simultaneously; Control valve 1 pass, control valve 2 lead at this moment, and control valve 3 is logical, and control valve 4 closes; Control valve 5 is logical, and control valve 6 closes, and control valve 7 closes, and control valve 8 is logical.The cylinder a of urea box and urea pump 18 is logical, the cylinder b end of urea pump 18 sucks urea liquid from system under the effect of spring force, in inhaling urea liquid process, ECU control urea-spray device is in opening state, the cylinder b end that guarantees urea pump 18 is held the cylinder b that the urea liquid in the system sucks urea pump 18, and this moment, the cylinder a end of urea pump 18 pressed down urea liquid in urea box in compressed-air actuated effect.
When the cylinder a of urea pump 18 end urea liquid drains, this moment, urea liquid pump inner carrier touched the cylinder a end position control switch of urea pump 18, and ECU receives information and sends instruction the urea liquid pump is transformed into as shown in Figure 4 state.
Claims (7)
1. urea liquid is supplied with and ejecting system, is made up of urea box module, heating pipe line and control valve, urea liquid supply pipeline, urea-spray device cooling liquid pipeline, compressed air line, urea liquid pump module, urea liquid filter cleaner, urea fluid injector, ECU; It is characterized in that: the urea box module is made up of urea box, filter screen (13), urea liquid filler (9), suction valve (11) and outlet valve (10), temperature and liquid level sensor (14); Urea box is provided with suction valve (11) and outlet valve (10) and urea liquid filler (9), and filter screen (13), temperature and liquid level sensor (14) are installed in the urea box; Urea liquid pump module by a on the urea pump (18) and b be provided with two positions control switches, 8 electromagnetic valve switch are formed, urea liquid filter cleaner (19) is gone up on the urea liquid supply pipeline that the setting pressure sensor is located at the filter screen (13) of urea box and urea fluid injector (22); Be parallel with the ECU SC sigmal control two groups on the urea liquid supply pipeline and intersect urea hydraulic control valve (1)-(4) that open and close; Link to each other with a on the urea pump (18) being provided with pipeline between control valve (1) and the control valve (2), establishing pipeline between control valve (3) and the control valve (4) links to each other with b on the urea pump (18), also be connected with two groups of compressed air control valve (5)-(8) on the position control switch of a on the urea pump (18) and b by ECU control, wherein compressed air control valve (16) is connected with control valve (5) and (6), and control valve (7) is connected with the ECU signal with atmosphere pipeline 17 with (8) series connection; ECU controls the switch of cooling water control valve (12) according to the urea box temperature information of control signal (15) input.
2. urea liquid according to claim 1 is supplied with and ejecting system, it is characterized in that described ECU controls heating pipe line according to the atmospheric temperature signal (23) of input and whether heats.
3. urea liquid according to claim 1 is supplied with and ejecting system, it is characterized in that described ECU controls the switch of the individual solenoid valve in (1)～(8) according to input position control switching information.
4. urea liquid according to claim 1 is supplied with and ejecting system, it is characterized in that described ECU judges according to the urea pressure signal (21) of input whether system is working properly.
5. urea liquid according to claim 1 is supplied with and ejecting system, it is characterized in that whether described ECU adds urea according to the urea box liquid level and temperature signal (14) the prompting driver of input.
6. urea liquid according to claim 1 is supplied with and ejecting system, it is characterized in that described ECU controls the work of urea-spray device according to SCR inlet temperature (24), urea box temperature, ambient temperature, urea pressure signal (21), urea box liquid level and the temperature signal (14) of input.
7. urea liquid according to claim 1 is supplied with and ejecting system, it is characterized in that described ECU judges according to the input of NOx signal (25) whether vehicle satisfies the requirement of OBD and carry out work according to the program of car load matching and calibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102177240A CN102032029A (en) | 2009-09-30 | 2009-09-30 | Urea solution supplying and spraying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102177240A CN102032029A (en) | 2009-09-30 | 2009-09-30 | Urea solution supplying and spraying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102032029A true CN102032029A (en) | 2011-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102177240A Pending CN102032029A (en) | 2009-09-30 | 2009-09-30 | Urea solution supplying and spraying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102032029A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306789A (en) * | 2012-03-16 | 2013-09-18 | 陈苏红 | Exhaust purification selective catalytic reduction treatment device for diesel engine |
| CN103321728A (en) * | 2012-03-22 | 2013-09-25 | 浙江卡韦德新能源科技有限公司 | Urea pump for treating tail gas of diesel engine |
| CN103603713A (en) * | 2013-11-06 | 2014-02-26 | 天津亿利汽车环保科技有限公司 | Pneumatic duplex measurement and injection system |
| CN103975137A (en) * | 2011-12-12 | 2014-08-06 | 罗伯特·博世有限公司 | Dosing arrangement for a liquid exhaust gas after-treatment medium and dosing method |
| CN105156182A (en) * | 2015-09-17 | 2015-12-16 | 苏州亿利亚科汽车系统有限公司 | Selective catalytic reduction (SCR) injection system and method |
| CN105987727A (en) * | 2015-01-20 | 2016-10-05 | 浙江福爱电子有限公司 | Liquid flow measurement device |
| CN108425722A (en) * | 2017-02-15 | 2018-08-21 | 现代自动车株式会社 | Urea filling apparatus for diesel vehicle |
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| JPH09170550A (en) * | 1995-12-15 | 1997-06-30 | Tlv Co Ltd | Steam pressure drive pump |
| WO2001038704A1 (en) * | 1999-11-24 | 2001-05-31 | Caterpillar Inc. | Emissions diagnostic system |
| CN1853035A (en) * | 2003-09-05 | 2006-10-25 | 日产柴油机车工业株式会社 | Exhaust gas purification device of engine |
| CN101054962A (en) * | 2007-05-23 | 2007-10-17 | 廖文庭 | Differential air pressure type energy-saving water-pumping device |
| US20080092531A1 (en) * | 2006-10-19 | 2008-04-24 | Denso Corporation | Exhaust purification device of engine |
| CN201650418U (en) * | 2009-09-30 | 2010-11-24 | 中国第一汽车集团公司 | Urea liquid supplying and ejecting system |
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2009
- 2009-09-30 CN CN2009102177240A patent/CN102032029A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09170550A (en) * | 1995-12-15 | 1997-06-30 | Tlv Co Ltd | Steam pressure drive pump |
| WO2001038704A1 (en) * | 1999-11-24 | 2001-05-31 | Caterpillar Inc. | Emissions diagnostic system |
| CN1853035A (en) * | 2003-09-05 | 2006-10-25 | 日产柴油机车工业株式会社 | Exhaust gas purification device of engine |
| US20080092531A1 (en) * | 2006-10-19 | 2008-04-24 | Denso Corporation | Exhaust purification device of engine |
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| CN201650418U (en) * | 2009-09-30 | 2010-11-24 | 中国第一汽车集团公司 | Urea liquid supplying and ejecting system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103975137A (en) * | 2011-12-12 | 2014-08-06 | 罗伯特·博世有限公司 | Dosing arrangement for a liquid exhaust gas after-treatment medium and dosing method |
| CN103975137B (en) * | 2011-12-12 | 2017-09-26 | 罗伯特·博世有限公司 | The metering device and metering method of liquid exhaust after-treatment agent |
| CN103306789A (en) * | 2012-03-16 | 2013-09-18 | 陈苏红 | Exhaust purification selective catalytic reduction treatment device for diesel engine |
| CN103306789B (en) * | 2012-03-16 | 2015-08-26 | 重庆超力高科技股份有限公司 | Exhaust purification selective catalytic reduction treatment device for diesel engine |
| CN103321728A (en) * | 2012-03-22 | 2013-09-25 | 浙江卡韦德新能源科技有限公司 | Urea pump for treating tail gas of diesel engine |
| CN103321728B (en) * | 2012-03-22 | 2015-04-15 | 浙江卡韦德新能源科技有限公司 | Urea pump for treating tail gas of diesel engine |
| CN103603713A (en) * | 2013-11-06 | 2014-02-26 | 天津亿利汽车环保科技有限公司 | Pneumatic duplex measurement and injection system |
| CN105987727A (en) * | 2015-01-20 | 2016-10-05 | 浙江福爱电子有限公司 | Liquid flow measurement device |
| CN105156182A (en) * | 2015-09-17 | 2015-12-16 | 苏州亿利亚科汽车系统有限公司 | Selective catalytic reduction (SCR) injection system and method |
| CN108425722A (en) * | 2017-02-15 | 2018-08-21 | 现代自动车株式会社 | Urea filling apparatus for diesel vehicle |
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Application publication date: 20110427 |