CN104100339A - Ammonia electronic-controlled injection device and method - Google Patents
Ammonia electronic-controlled injection device and method Download PDFInfo
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- CN104100339A CN104100339A CN201410356355.4A CN201410356355A CN104100339A CN 104100339 A CN104100339 A CN 104100339A CN 201410356355 A CN201410356355 A CN 201410356355A CN 104100339 A CN104100339 A CN 104100339A
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- ammonia
- pressure
- controlled injection
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- reduction valve
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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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Abstract
The invention discloses an ammonia electronic-controlled injection device. The device comprises a controller, an ammonia supply pipeline, an ammonia output pipeline and a gasometer; one end of the gasometer is communicated with the ammonia supply pipeline and while the other end of the gasometer is communicated with the ammonia output pipeline; a switch is arranged on the ammonia output pipeline; a first pressure sensor, an electromagnetic throttling valve, and a pressure reduction valve which are connected with the controller are sequentially arranged on the ammonia supply pipeline; a second pressure sensor and a temperature sensor are arranged on the gasometer and connected with the controller. With the adoption of the ammonia electronic-controlled injection device, the ammonia can be smoothly and stably supplied. The invention also discloses an ammonia electronic-controlled injection method.
Description
Technical field
The present invention relates to vent gas treatment technical field, relate in particular to a kind of ammonia electric-controlled injection device and ammonia electric-controlled injection method.
Background technique
In recent years, the pollution of atmosphere is on the rise, and wherein nearly 70% pollution sources are the harmful matters such as soot dust granule thing, carbon monoxide, hydrocarbon and the nitrogen oxide of automotive emission.Most European countries is being carried out Ou Si emission standard, and our country also classifies control atmosphere pollution as the most important thing of work at present.Therefore be, also key subjects of current field of Environment Protection for (state's four standards) up to standard technology of automotive emission., after it fully mixes with engine exhaust, by containing the carrier of catalyzer, there is catalytic reduction reaction in a kind of reducing agent of a Technology Need of processing motor-vehicle tail-gas, reaches the object of effective processing motor-vehicle tail-gas.
A kind of method that reducing agent is provided is at present to adopt liquid area as reducing agent, and the nitrogen oxide that it can effectively reduce in motor-vehicle tail-gas, reaches the object of purification.But this technology exists a lot of deficiencies (as liquid area low temperature freezes, spray nozzle clogging, pipeline Crystallization Plugging, urea purity are uncontrollable etc.) simultaneously, the delivery volume that ammonia is provided that especially can not be stable, causes vent gas treatment weak effect.
Therefore, provide a kind of ammonia electric-controlled injection device and ammonia electric-controlled injection method, solve many deficiencies of liquid reducer, be current related domain urgently to be resolved hurrily with regard to technical problem.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of ammonia electric-controlled injection device, provide to realize the stable of ammonia.The object of the present invention is to provide a kind of ammonia electric-controlled injection method.
In order to achieve the above object, the invention provides following technological scheme:
A kind of ammonia electric-controlled injection device, comprise controller, ammonia supply pipeline, the gentle rail of ammonia output pipe, one end of described gas rail is communicated with described ammonia supply pipeline, its the other end is communicated with described ammonia output pipe, on described ammonia output pipe, be provided with switch, described ammonia supply pipeline from be disposed with the first pressure transducer, electromagnetic throttle valve and reduction valve, described controller also with described the first pressure transducer, described electromagnetic throttle valve is connected with described reduction valve, on described gas rail, be provided with the second pressure transducer and temperature transducer, described controller is also connected with described the second pressure transducer and described temperature transducer.
Preferably, above-mentioned switch is Proportional valve.
Preferably, above-mentioned ammonia electric-controlled injection device also comprises ECU, and described ECU is connected with described controller, and described controller is DCU.
The present invention also provides a kind of ammonia electric-controlled injection method, comprising:
In the time of engine start, give ECU signal, described ECU transmits the signal to DCU, ammonia enters ammonia supply pipeline, electromagnetic throttle valve is opened, ammonia enters gas rail, described DCU collects the information of described the first pressure transducer, and the described information of foundation is to described electromagnetic throttle valve and described reduction valve control, described reduction valve reduces ammonia pressure, in the time being arranged on the second pressure transducer on described gas rail and temperature transducer and detecting that temperature and pressure in described gas rail reaches certain numerical value, be positioned at the switch open on described ammonia output pipe, quantitative injection ammonia.
Preferably, above-mentioned switch is Proportional valve.
Preferably, in the time that ammonia passes through the constant pressure of described reduction valve, described DCU controls the aperture of described switch, keeps spraying at regular time and quantity ammonia.
Preferably, when the pressure of ammonia by described reduction valve is lower than steady state value and while being greater than normal atmospheric pressure, described DCU dwindles the aperture of described switch, keeps spraying at regular time and quantity ammonia.
Ammonia electric-controlled injection device provided by the invention, comprise controller, ammonia supply pipeline, the gentle rail of ammonia output pipe, one end of described gas rail is communicated with described ammonia supply pipeline, its the other end is communicated with described ammonia output pipe, on described ammonia output pipe, be provided with switch, described ammonia supply pipeline from be disposed with the first pressure transducer, electromagnetic throttle valve and reduction valve, described controller also with described the first pressure transducer, described electromagnetic throttle valve is connected with described reduction valve, on described gas rail, be provided with the second pressure transducer and temperature transducer, described controller is also connected with described the second pressure transducer and described temperature transducer.
When use, engine start is discharged tail gas, ammonia enters ammonia supply pipeline, electromagnetic throttle valve is opened, ammonia enters gas rail, controller is collected the information of described the first pressure transducer, and the described information of foundation is to described electromagnetic throttle valve and described reduction valve control, described reduction valve reduces ammonia pressure, realize stable the entering in gas rail of ammonia, in the time being arranged on the second pressure transducer on described gas rail and temperature transducer and detecting that temperature and pressure in described gas rail reaches certain numerical value, be positioned at the switch open on described ammonia output pipe, quantitative injection ammonia is processed tail gas, thereby having realized the stable of ammonia provides, and, in gas rail, can be used for using by residual fraction ammonia next time, so at exhaust emissions at the beginning and ammonia do not arrive gas rail in time, ammonia residual in gas rail can directly use, providing smoothly of ammonia has further been provided, the ammonia of gas rail in can guarantee system can be stablized injection, ammonia can steadily be exported.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the ammonia electric-controlled injection device that Fig. 1 provides for the embodiment of the present invention.
In upper Fig. 1:
Ammonia supply pipeline 1, the first pressure transducer 2, electromagnetic throttle valve 3, reduction valve 4, ammonia output pipe 5, gas rail 6, temperature transducer 7, the second pressure transducer 8, Proportional valve 9.
Embodiment
For making object, technological scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment who obtains under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, the structural representation of the ammonia electric-controlled injection device that Fig. 1 provides for the embodiment of the present invention.
The ammonia electric-controlled injection device that the embodiment of the present invention provides, comprise controller, ammonia supply pipeline 1, the gentle rail 6 of ammonia output pipe 5, one end of gas rail 6 is communicated with ammonia supply pipeline 1, its the other end is communicated with ammonia output pipe 5, on ammonia output pipe 5, be provided with switch, ammonia supply pipeline 1 from be disposed with the first pressure transducer 2, electromagnetic throttle valve 3 and reduction valve 4, controller also with the first pressure transducer 2, electromagnetic throttle valve 3 is connected with reduction valve 4, on gas rail 6, be provided with the second pressure transducer 8 and temperature transducer 7, controller is also connected with the second pressure transducer 8 and temperature transducer 7.
When use, engine start is discharged tail gas, ammonia enters ammonia supply pipeline 1, electromagnetic throttle valve 3 is opened, ammonia enters gas rail 6, controller is collected the information of the first pressure transducer 2, and according to information, electromagnetic throttle valve 3 and reduction valve 4 are controlled, reduction valve 4 reduces ammonia pressure, realize stable the entering in gas rail of ammonia, in the time being arranged on the second pressure transducer 8 on gas rail 6 and temperature transducer 7 and detecting that temperature and pressure in gas rail 6 reaches certain numerical value, be positioned at the switch open on ammonia output pipe 5, quantitative injection ammonia is processed tail gas, thereby having realized the stable of ammonia provides, and accurately supply with, can control accurately the delivery volume of ammonia, ensure under different operating modes, ammonia is synchronizeed with tail gas, ensure conversion ratio.
And, in gas rail 6, can be used for using by residual fraction ammonia next time, so at exhaust emissions at the beginning and ammonia do not arrive gas rail 6 in time, ammonia residual in gas rail 6 can directly use, providing smoothly of ammonia has further been provided, the ammonia of gas rail 6 in can guarantee system can be stablized injection, and ammonia can steadily be exported.
In order further to optimize such scheme, switch is Proportional valve 9, easy to use, the valve port of Proportional valve 9 can be opened any one aperture as required, controls thus the size by flow, is very suitable for the adjusting to flow, can control accurately the delivery volume of ammonia, ensure under different operating modes, ammonia is synchronizeed with tail gas, ensures conversion ratio.
In order further to optimize such scheme, above-mentioned ammonia electric-controlled injection device also comprises ECU, and ECU is connected with controller, and controller is DCU.When concrete use, in the time of engine start, give ECU signal, signal is passed to DCU by ECU14, and DCU starts control procedure.The Chinese of ECU is vehicle-mounted computer, and English full name is Electronic Control Unit, and the Chinese of DCU13 is driving control unit, and English full name is Drive Control Unit.
The ammonia electric-controlled injection device providing in order more clearly to describe the embodiment of the present invention, now optimal case is described as follows:
Electromagnetic throttle valve 3 is for controlling the break-make of ammonia, reduction valve 4 is for controlling the pressure that passes into ammonia to gas rail 6, avoid excessive owing to entering the ammonia pressure of gas rail 6, cause stablizing injection ammonia, carry out pressure limiting therefore install reduction valve 4 additional, ensure the stable output of ammonia, reduction valve 4 can be mechanical type reduction valve, gas rail 6 is for storing a certain amount of ammonia, the first pressure transducer 2 is for monitoring the pressure of ammonia supply pipeline 1, the second pressure transducer 8 is for monitoring the pressure of gas rail 6 ammonias, temperature transducer 7 is for monitoring the temperature of gas rail 6 ammonias, switch is Proportional valve 9, be mainly used in controlling the quantitative injection of ammonia.
In the time that vehicle launch travels, the first pressure transducer 2, the second pressure transducer 8, temperature transducer 7 is started working, receive signal, in the time that motor starts emission, ammonia enters ammonia supply pipeline 1, now, electromagnetic throttle valve 3 is opened, ammonia enters in gas rail 6, in the time that the larger ammonia of pressure passes through reduction valve 4, reduction valve 4 reduces gas pressure intensity, then post-decompression ammonia flows into gas rail 6, in the time that temperature transducer 7 and the second pressure transducer 8 monitor temperature and pressure in gas rail 6 and reach certain numerical value, switch, be that Proportional valve 9 starts to spray at regular time and quantity ammonia, the reception of whole process signal and processing are all completed by DCU.In the time that ammonia reduces by the pressure of reduction valve 4, ammonia directly enters gas rail 6 by reduction valve 4, the signal that DCU monitors according to the second pressure transducer 8 in gas rail 6 and temperature transducer 7, the opening hours of resize ratio valve 9 and emitted dose, rationally discharge ammonia, when the constant pressure that is so no matter ammonia by reduction valve 4 or the pressure of ammonia by reduction valve 4 lower than steady state value and while being greater than atmospheric pressure, the signal that DCU can monitor according to the second pressure transducer 8 in gas rail 6 and temperature transducer 7, the opening hours of resize ratio valve 9 and emitted dose, rationally discharge ammonia.
The present invention also provides a kind of ammonia electric-controlled injection method of above-mentioned ammonia electric-controlled injection device, comprise: in the time of engine start, give ECU signal, signal is passed to DCU by ECU, ammonia enters ammonia supply pipeline 1, electromagnetic throttle valve 3 is opened, ammonia enters gas rail 6, DCU collects the information of the first pressure transducer 2, and according to information, electromagnetic throttle valve 3 and reduction valve 4 are controlled, reduction valve 4 reduces ammonia pressure, in the time being arranged on the second pressure transducer 8 on gas rail 6 and temperature transducer 7 and detecting that temperature and pressure in gas rail 6 reaches certain numerical value, be positioned at the switch open on ammonia output pipe 5, quantitative injection ammonia is processed tail gas, the certain numerical value that reaches herein refers to, in the time having ammonia to eject from gas rail 6, the ammonia entering gas rail 6 from ammonia supply pipeline 1 can make the ammonia in gas rail 6 keep fixing pressure always, the ammonia that guarantee ejects like this can be at regular time and quantity.
In order further to optimize such scheme, in the time that ammonia passes through the constant pressure of reduction valve 4, the aperture of DCU control switch, keeps spraying at regular time and quantity ammonia.
In order further to optimize such scheme, when the pressure of ammonia by reduction valve 4 is lower than steady state value and while being greater than normal atmospheric pressure, DCU dwindles the aperture of switch, keeps spraying at regular time and quantity ammonia.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to these embodiments' multiple amendment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. an ammonia electric-controlled injection device, is characterized in that, comprises controller, ammonia supply pipeline, the gentle rail of ammonia output pipe, and one end of described gas rail is communicated with described ammonia supply pipeline, and its other end is communicated with described ammonia output pipe,
On described ammonia output pipe, be provided with switch,
Described ammonia supply pipeline from be disposed with the first pressure transducer, electromagnetic throttle valve and reduction valve, described controller is also connected with described the first pressure transducer, described electromagnetic throttle valve and described reduction valve,
On described gas rail, be provided with the second pressure transducer and temperature transducer, described controller is also connected with described the second pressure transducer and described temperature transducer.
2. vent gas treatment ammonia generator according to claim 1, is characterized in that, described switch is Proportional valve.
3. ammonia electric-controlled injection device according to claim 1, is characterized in that, also comprises ECU, and described ECU is connected with described controller, and described controller is DCU.
4. an ammonia electric-controlled injection method, is characterized in that, comprising:
In the time of engine start, give ECU signal, described ECU transmits the signal to DCU, ammonia enters ammonia supply pipeline, electromagnetic throttle valve is opened, ammonia enters gas rail, described DCU collects the information of described the first pressure transducer, and the described information of foundation is to described electromagnetic throttle valve and described reduction valve control, described reduction valve reduces ammonia pressure, in the time being arranged on the second pressure transducer on described gas rail and temperature transducer and detecting that temperature and pressure in described gas rail reaches certain numerical value, be positioned at the switch open on described ammonia output pipe, quantitative injection ammonia is processed tail gas.
5. ammonia electric-controlled injection method according to claim 4, is characterized in that, described switch is Proportional valve.
6. ammonia electric-controlled injection method according to claim 4, is characterized in that, in the time that ammonia passes through the constant pressure of described reduction valve, described DCU controls the aperture of described switch, keeps spraying at regular time and quantity ammonia.
7. ammonia electric-controlled injection method according to claim 4, is characterized in that, when the pressure of ammonia by described reduction valve is lower than steady state value and while being greater than normal atmospheric pressure, described DCU dwindles the aperture of described switch, keeps spraying at regular time and quantity ammonia.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410356355.4A CN104100339B (en) | 2014-07-24 | 2014-07-24 | A kind of ammonia electric-controlled injection device and ammonia electric-controlled injection method |
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| CN201410356355.4A CN104100339B (en) | 2014-07-24 | 2014-07-24 | A kind of ammonia electric-controlled injection device and ammonia electric-controlled injection method |
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| CN104100339A true CN104100339A (en) | 2014-10-15 |
| CN104100339B CN104100339B (en) | 2017-07-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593589A (en) * | 2017-01-23 | 2017-04-26 | 吉林省众鑫汽车装备有限公司 | Tail gas treatment device |
| CN107781001A (en) * | 2017-08-16 | 2018-03-09 | 吉林省众鑫汽车装备有限公司 | Vehicle and its exhaust treatment system |
| CN108050380A (en) * | 2017-12-29 | 2018-05-18 | 长春汽四环腾达油脂化工有限公司 | A kind of ammonia metering device and vehicle and its tail gas treatment device |
| CN112850207A (en) * | 2021-01-06 | 2021-05-28 | 内蒙古蒙维科技有限公司 | Method for controlling powder buffering and flow stabilizing bin heavy bin pressure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106593589A (en) * | 2017-01-23 | 2017-04-26 | 吉林省众鑫汽车装备有限公司 | Tail gas treatment device |
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| CN107781001A (en) * | 2017-08-16 | 2018-03-09 | 吉林省众鑫汽车装备有限公司 | Vehicle and its exhaust treatment system |
| CN108050380A (en) * | 2017-12-29 | 2018-05-18 | 长春汽四环腾达油脂化工有限公司 | A kind of ammonia metering device and vehicle and its tail gas treatment device |
| CN112850207A (en) * | 2021-01-06 | 2021-05-28 | 内蒙古蒙维科技有限公司 | Method for controlling powder buffering and flow stabilizing bin heavy bin pressure |
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| Publication number | Publication date |
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| CN104100339B (en) | 2017-07-28 |
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Effective date of registration: 20210707 Address after: Room 5128, Huada Tianshi innovation and service center, intersection of Xinxiu street and Dashun Road, Kuancheng District, Changchun City, Jilin Province Patentee after: Kelin Lantai Environmental Technology (Changchun) Co.,Ltd. Address before: 136000 No.1 Chuangye street, Gongzhuling Economic Development Zone, Siping City, Jilin Province Patentee before: JILIN ZHONGXIN AUTO EQUIPMENT Co.,Ltd. |