CN201835894U - Single urea box full-deflating empty pipeline serum creatinine (SCR) urea power supply and injection system - Google Patents
Single urea box full-deflating empty pipeline serum creatinine (SCR) urea power supply and injection system Download PDFInfo
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- CN201835894U CN201835894U CN2010205689874U CN201020568987U CN201835894U CN 201835894 U CN201835894 U CN 201835894U CN 2010205689874 U CN2010205689874 U CN 2010205689874U CN 201020568987 U CN201020568987 U CN 201020568987U CN 201835894 U CN201835894 U CN 201835894U
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000004202 carbamide Substances 0.000 title claims abstract description 100
- 238000002347 injection Methods 0.000 title claims abstract description 11
- 239000007924 injection Substances 0.000 title claims abstract description 11
- DDRJAANPRJIHGJ-UHFFFAOYSA-N creatinine Chemical compound CN1CC(=O)NC1=N DDRJAANPRJIHGJ-UHFFFAOYSA-N 0.000 title 2
- 229940109239 creatinine Drugs 0.000 title 1
- 210000002966 serum Anatomy 0.000 title 1
- 239000000243 solution Substances 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001802 infusion Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
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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)
Abstract
本实用新型涉及一种单尿素箱全放气清空管路SCR尿素供电及喷射系统，其特征在于：尿素箱上面布置尿素液加注口，温度及液位传感器，尿素箱压力传感器，加热管路，压缩气体进入压缩气体管路Ⅰ和压缩气体管路Ⅲ，放气至压缩气体电磁阀B，压缩气体控制阀A、压缩气体控制阀B、压缩气体控制阀C设在汽车储气筒与尿素箱之间的压缩空气管路中，尿素液滤清器设在尿素箱与尿素液喷射器之间的尿素液供给管路中；ECU信号控制压缩气体控制阀A、压缩气体控制阀B、压缩气体控制阀C三个电磁阀及尿素液喷射器。其能彻底清空系统管路中的尿素液，降低系统成本，打破国际供应商垄断该领域的局面，充分发挥自主开发的优势。
The utility model relates to an SCR urea power supply and injection system for a single urea tank full deflation and emptying pipeline, which is characterized in that: a urea solution filling port, a temperature and liquid level sensor, a urea tank pressure sensor, and a heating pipeline are arranged on the urea tank , the compressed gas enters the compressed gas pipeline I and compressed gas pipeline III, and deflates to the compressed gas solenoid valve B. The compressed gas control valve A, compressed gas control valve B, and compressed gas control valve C are located in the automobile gas storage tank and urea tank In the compressed air pipeline between them, the urea solution filter is set in the urea solution supply pipeline between the urea tank and the urea solution injector; the ECU signal controls the compressed gas control valve A, the compressed gas control valve B, the compressed gas Control valve C three solenoid valves and urea liquid injector. It can completely empty the urea solution in the system pipeline, reduce the system cost, break the monopoly of international suppliers in this field, and give full play to the advantages of independent development.
Description
技术领域technical field
本实用新型涉及一种单尿素箱全放气清空管路SCR尿素供电及喷射系统，特别是涉及一种气动式单尿素箱全放气清空管路SCR尿素供给及喷射系统。The utility model relates to an SCR urea power supply and injection system for a fully deflated and emptied pipeline of a single urea tank, in particular to a pneumatic SCR urea supply and injection system for a fully deflated and emptied pipeline of a single urea tank.
背景技术Background technique
目前成熟的直喷式尿素液供给及喷射系统都是国外公司生产的，有的采用膜片泵结构，有的采用齿轮泵结构，管路清空为泵倒吸式，清空不彻底，系统复杂，价格很高，都是系统供应，不同意打破系统为零部件供应商。At present, the mature direct-injection urea solution supply and injection systems are all produced by foreign companies. Some adopt diaphragm pump structure, and some adopt gear pump structure. The price is high, it is all system supply, do not agree to break the system as a component supplier.
发明内容Contents of the invention
本实用新型的目的在于提供一种单尿素箱全放气清空管路SCR尿素供电及喷射系统，其降低了成本，打破国际供应商垄断该领域的局面，充分发挥自主开发的优势，便于整车的布置。The purpose of this utility model is to provide an SCR urea power supply and injection system for the full deflation and emptying pipeline of a single urea tank, which reduces the cost, breaks the monopoly situation of international suppliers in this field, fully exerts the advantages of independent development, and is convenient for the whole vehicle layout.
本实用新型的技术方案是这样实现的：一种单尿素箱全放气清空管路SCR尿素供电及喷射系统，由尿素液加注口、尿素箱、水加热管路、尿素液温度及液位信号、大气温度信号、SCR入口温度信号6、NOx信号、尿素箱压力信号、ECU控制信号分为信号Ⅰ、信号Ⅱ、信号Ⅲ、尿素喷射器、尿素喷射器冷却管路、尿素箱加热控制阀、压缩气体控制阀A、压缩气体控制阀B、压缩气体控制阀C、压缩气体管路Ⅰ、压缩气体管路Ⅱ和压缩气体管路Ⅲ、尿素输液管、尿素液滤清器组成；其特征在于：尿素箱上面布置尿素液加注口，温度及液位传感器，尿素箱压力传感器，加热管路，压缩气体进入压缩气体管路Ⅰ和压缩气体管路Ⅲ，放气至压缩气体电磁阀B ，压缩气体控制阀A 、压缩气体控制阀B 、压缩气体控制阀C 设在汽车储气筒与尿素箱之间的压缩空气管路中，尿素液滤清器设在尿素箱与尿素液喷射器之间的尿素液供给管路中； ECU信号控制压缩气体控制阀A 、压缩气体控制阀B 、压缩气体控制阀C 三个电磁阀及尿素液喷射器。The technical scheme of the utility model is realized in the following way: a single urea tank full deflation and emptying pipeline SCR urea power supply and injection system consists of urea solution filling port, urea tank, water heating pipeline, urea solution temperature and liquid level Signal, atmospheric temperature signal, SCR inlet temperature signal 6, NOx signal, urea tank pressure signal, ECU control signal is divided into signal Ⅰ, signal Ⅱ, signal Ⅲ, urea injector, urea injector cooling pipeline, urea tank heating control valve , Compressed gas control valve A, compressed gas control valve B, compressed gas control valve C, compressed gas pipeline I, compressed gas pipeline II and compressed gas pipeline III, urea infusion tube, urea solution filter; its characteristics It is: the urea solution filling port, temperature and liquid level sensor, urea tank pressure sensor, heating pipeline are arranged on the urea tank, the compressed gas enters the compressed gas pipeline Ⅰ and compressed gas pipeline Ⅲ, and deflates to the compressed gas solenoid valve B , the compressed gas control valve A, the compressed gas control valve B, and the compressed gas control valve C are set in the compressed air pipeline between the automobile gas storage tank and the urea solution tank, and the urea solution filter is set between the urea solution tank and the urea solution injector In the urea solution supply pipeline between them; the ECU signal controls the compressed gas control valve A, the compressed gas control valve B, the compressed gas control valve C three solenoid valves and the urea solution injector.
本实用新型的积极效果是彻底清空系统管路中的尿素液，降低系统成本，打破国际供应商垄断该领域的局面，充分发挥自主开发的优势。The positive effect of the utility model is to completely empty the urea solution in the system pipeline, reduce the system cost, break the monopoly situation of the field by international suppliers, and give full play to the advantages of independent development.
附图说明Description of drawings
图1为本实用新型的系统示意图。Fig. 1 is the system diagram of the utility model.
具体实施方式Detailed ways
下面结合附图对本实用新型做进一步的描述：如图1所示一种单尿素箱全放气清空管路SCR尿素供电及喷射系统，由尿素液加注口1、尿素箱2、水加热管路3、尿素液温度及液位信号4、大气温度信号5、SCR入口温度信号6、NOx信号7、尿素箱压力信号10、ECU控制信号分为信号Ⅰ8、信号Ⅱ9、信号Ⅲ 11、尿素喷射器12、尿素喷射器冷却管路13、尿素箱加热控制阀16、压缩气体控制阀A 14、压缩气体控制阀B 20、压缩气体控制阀C 21、压缩气体管路Ⅰ15、压缩气体管路Ⅱ19和压缩气体管路Ⅲ22、尿素输液管17、尿素液滤清器18组成；其特征在于：尿素箱上面布置尿素液加注口1，温度及液位传感器4，尿素箱压力传感器10，加热管路3，压缩气体进入压缩气体管路Ⅰ15和压缩气体管路Ⅲ22，放气至压缩气体电磁阀B 20，压缩气体控制阀A 14、压缩气体控制阀B 20、压缩气体控制阀C 21设在汽车储气筒与尿素箱2之间的压缩空气管路15中，尿素液滤清器18设在尿素箱2与尿素液喷射器12之间的尿素液供给管路17中； ECU信号控制压缩气体控制阀A 14、压缩气体控制阀B 20、压缩气体控制阀C 21三个电磁阀及尿素液喷射器12。The utility model will be further described below in conjunction with the accompanying drawings: as shown in Figure 1, a single urea tank full deflation emptying pipeline SCR urea power supply and injection system consists of urea solution filling port 1, urea tank 2, water heating pipe Road 3, urea liquid temperature and liquid level signal 4, atmospheric temperature signal 5, SCR inlet temperature signal 6, NOx signal 7, urea tank pressure signal 10, ECU control signal is divided into signal Ⅰ 8, signal Ⅱ 9, signal Ⅲ 11, urea injection Device 12, urea injector cooling pipeline 13, urea tank heating control valve 16, compressed gas control valve A 14, compressed gas control valve B 20, compressed gas control valve C 21, compressed gas pipeline I15, compressed gas pipeline II19 Composed of compressed gas pipeline III 22, urea infusion pipe 17, and urea solution filter 18; it is characterized in that: urea solution filling port 1, temperature and liquid level sensor 4, urea solution tank pressure sensor 10, heating tube are arranged on the urea tank Road 3, the compressed gas enters the compressed gas pipeline Ⅰ15 and the compressed gas pipeline Ⅲ22, and deflates to the compressed gas solenoid valve B 20, the compressed gas control valve A 14, the compressed gas control valve B 20, and the compressed gas control valve C 21 are set at In the compressed air pipeline 15 between the automobile air storage tank and the urea tank 2, the urea solution filter 18 is arranged in the urea solution supply pipeline 17 between the urea tank 2 and the urea solution injector 12; the ECU signal controls the compressed gas Control valve A 14, compressed gas control valve B 20, compressed gas control valve C 21, three solenoid valves and urea solution injector 12.
所述的ECU控制信号根据输入的大气温度及尿素箱温度信息来控制尿素箱加热控制阀是否加热。The ECU control signal controls whether the heating control valve of the urea tank is heated according to the input atmospheric temperature and the temperature information of the urea tank.
所述的ECU控制信号根据输入的尿素箱液位信息判定尿素箱是否需要加注尿素液。The ECU control signal determines whether the urea tank needs to be filled with urea solution according to the input urea tank liquid level information.
当环境最低温度低于-11°C整车关闭电源时，ECU根据标定数据首先关闭压缩气体控制阀A 14，打开压缩气体控制阀B 20，尿素箱中压力降低到大气压力时关闭压缩气体控制阀B 20，同时打开压缩气体控制阀C21并开启尿素喷嘴，清空尿素管理及滤清器中的尿素液，然后关闭压缩气体控制阀C21，同时打开压缩气体控制阀B 20，放出尿素箱中的该压气体后关闭压缩气体控制阀B 20，清空完毕。When the lowest ambient temperature is lower than -11°C and the vehicle is powered off, the ECU first closes the compressed gas control valve A 14 according to the calibration data, opens the compressed gas control valve B 20, and closes the compressed gas control when the pressure in the urea tank drops to atmospheric pressure Valve B 20, open the compressed gas control valve C21 and open the urea nozzle at the same time, empty the urea liquid in the urea management and filter, then close the compressed gas control valve C21, and open the compressed gas control valve B 20 at the same time, release the urea in the urea tank Close the compressed gas control valve B 20 after the compressed gas, and the emptying is completed.
尿素箱中的尿素液是由ECU根据输入的压力传信息而关闭压缩气体控制阀A 14、压缩气体控制阀B 20、压缩气体控制阀C 21，打开尿素喷射器12，这样尿素液在气体压力作用下通过尿素液滤清器18后到达尿素喷射器处，并根据发动机排放标定的要求通过尿素液喷射器喷入排气管中，实现降低NOx的作用。The urea liquid in the urea tank is closed by the ECU according to the input pressure information, the compressed gas control valve A 14, the compressed gas control valve B 20, the compressed gas control valve C 21, and the urea injector 12 is opened, so that the urea liquid is under the pressure of the gas. After passing through the urea liquid filter 18 under the action, it reaches the urea injector, and is sprayed into the exhaust pipe through the urea liquid injector according to the requirements of engine emission calibration, so as to realize the effect of reducing NOx.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205689874U CN201835894U (en) | 2010-10-20 | 2010-10-20 | Single urea box full-deflating empty pipeline serum creatinine (SCR) urea power supply and injection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010205689874U CN201835894U (en) | 2010-10-20 | 2010-10-20 | Single urea box full-deflating empty pipeline serum creatinine (SCR) urea power supply and injection system |
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| CN201835894U true CN201835894U (en) | 2011-05-18 |
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| CN2010205689874U Expired - Fee Related CN201835894U (en) | 2010-10-20 | 2010-10-20 | Single urea box full-deflating empty pipeline serum creatinine (SCR) urea power supply and injection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005819A (en) * | 2014-05-19 | 2014-08-27 | 西南交通大学 | Air pressure type urea metering injection system with two urea pressure containers |
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- 2010-10-20 CN CN2010205689874U patent/CN201835894U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005819A (en) * | 2014-05-19 | 2014-08-27 | 西南交通大学 | Air pressure type urea metering injection system with two urea pressure containers |
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Granted publication date: 20110518 Termination date: 20191020 |
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| CF01 | Termination of patent right due to non-payment of annual fee |