CN208473963U - Urea supply spraying system - Google Patents
Urea supply spraying system Download PDFInfo
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- CN208473963U CN208473963U CN201821151729.9U CN201821151729U CN208473963U CN 208473963 U CN208473963 U CN 208473963U CN 201821151729 U CN201821151729 U CN 201821151729U CN 208473963 U CN208473963 U CN 208473963U
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- Prior art keywords
- urea
- media
- freezing point
- temperature
- spraying system
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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
A kind of urea supply spraying system comprising controller, Urea Media, urea nozzle and urea pump.The Urea Media includes the first, second Urea Media.First, second Urea Media is respectively provided with the first, second concentration and the first, second freezing point, wherein first freezing point is lower than second freezing point.When the controller detects the temperature of second Urea Media higher than second freezing point, urea pump carries out building pressure and sprays the second Urea Media；When the controller detects the temperature of second Urea Media below or equal to second freezing point, and when detecting that the temperature of first Urea Media is higher than first freezing point, urea pump carries out building pressure and sprays the first Urea Media.So set, can flexibly be switched between two kinds of Urea Medias according to temperature conditions, the efficiency of system is improved, power consumption is reduced.
Description
Technical field
The utility model relates to a kind of urea supply spraying systems, belong to the technical field of motor exhaust post-processing.
Background technique
At present in ship machine or engineering machinery and road machine post-processing exhaust system, SCR catalytic reducer is usual
Using AUS32 or AUS40.Since the freezing point of AUS32 is -11 DEG C, so being most widely used.But AUS40 is due to its urea
Concentration is higher, and under same urea bucket liquid level, continuation of the journey increases by 8% compared to AUS32；But since its freezing point is 0 DEG C, in ship machinery
In be most widely used, but engineering machinery under inland ship or low temperature or road vehicle cannot be widely applied.
Utility model content
The purpose of this utility model is to provide a kind of urea supply spraying systems of optimization.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of urea supply spraying system, the urine
Element supply spraying system includes controller, Urea Media, urea nozzle and the Urea Media is pumped into the urine
The urea pump of plain nozzle, the Urea Media include the first Urea Media and the second Urea Media, urea supply injection system
System further includes the first solenoid valve being connected between first Urea Media and the urea pump and is connected to described second
Second solenoid valve between Urea Media and the urea pump, first Urea Media have the first concentration and the first freezing point,
Second Urea Media has the second concentration and the second freezing point, wherein first concentration is less than second concentration, it is described
First freezing point is lower than second freezing point；
When the controller detects that the temperature of second Urea Media is higher than second freezing point, described the is opened
Two solenoid valves simultaneously close off first solenoid valve, and the controller controls the urea pump and carries out building pressure, and passes through the urine
Plain nozzle sprays second Urea Media into motor exhaust；
When the controller detects the temperature of second Urea Media below or equal to second freezing point, and
When detecting that the temperature of first Urea Media is higher than first freezing point, first solenoid valve is opened, institute is simultaneously closed off
State second solenoid valve, the controller controls the urea pump and build pressure, and by the urea nozzle to motor exhaust
Middle injection first Urea Media.
As the further improved technical solution of the utility model, the urea supply spraying system includes to detect
The first temperature sensor of the temperature of the first Urea Media is stated, first temperature sensor is connected with the controller；It is described
Urea supply spraying system includes the second temperature sensor to detect the temperature of second Urea Media, second temperature
Degree sensor is connected with the controller.
As the further improved technical solution of the utility model, first Urea Media is stored in the first urea cylinder
In, second Urea Media is stored in the second urea cylinder.
As the further improved technical solution of the utility model, the urea supply spraying system further includes being mounted on institute
It states in the first urea cylinder and the electric heating wire to be heated to first Urea Media.
As the further improved technical solution of the utility model, when the controller detects second Urea Media
Temperature when being below or equal to second freezing point, and detect the temperature of first Urea Media below or equal to institute
When stating the first freezing point, the controller starts the electric heating wire and heats to first Urea Media；
When the controller detects that the temperature of first Urea Media is higher than first freezing point, described the is opened
One solenoid valve simultaneously closes off the second solenoid valve, and the controller controls the urea pump and carries out building pressure, and passes through the urine
Plain nozzle sprays first Urea Media into motor exhaust.
As the further improved technical solution of the utility model, the urea supply spraying system further includes and engine
The connected third solenoid valve of coolant liquid opens the third solenoid valve when the engine coolant is more than a certain temperature, benefit
Second Urea Media is heated with the engine coolant；
When the controller detects that the temperature of second Urea Media is higher than second freezing point, described the is opened
Two solenoid valves simultaneously close off first solenoid valve, and the controller controls the urea pump and carries out building pressure, and passes through the urine
Plain nozzle sprays second Urea Media into motor exhaust.
As the further improved technical solution of the utility model, first Urea Media is AUS32, and the second urea is situated between
Matter is AUS40.
Compared to the prior art, the utility model is provided with two different Urea Medias, according to the temperature of Urea Media
Situation flexibly switches between two kinds of Urea Medias, improves the efficiency of system, reduces power consumption.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model urea supply spraying system.
Fig. 2 is the schematic diagram of the control method of the utility model urea supply spraying system.
Specific embodiment
It please join shown in Fig. 1, the utility model discloses a kind of urea supply spraying system 100 comprising including controller
1, Urea Media, urea nozzle 2 and the urea pump 3 Urea Media to be pumped into the urea nozzle 2.The urine
Plain medium includes the first Urea Media 41 and the second Urea Media 42, and the urea supply spraying system 100 further includes being connected to
The first solenoid valve 51 between first Urea Media 41 and the urea pump 3 and it is connected to second Urea Media 42
With the second solenoid valve 52 between the urea pump 3.First Urea Media 41 has the first concentration and the first freezing point, described
Second Urea Media 42 has the second concentration and the second freezing point, wherein first concentration is less than second concentration, described the
One freezing point is lower than second freezing point.In the utility model embodiment illustrated, first Urea Media 41 is
AUS32, the second Urea Media 42 are AUS40.First freezing point is -11 DEG C, and second freezing point is 0 DEG C.
In the utility model embodiment illustrated, first Urea Media 41 is stored in the first urea cylinder 61
In, second Urea Media 42 is stored in the second urea cylinder 62.The urea supply spraying system 100 includes to examine
Survey the first temperature sensor 611 of the temperature of first Urea Media 41, first temperature sensor 611 and the control
Device 1 is connected；The urea supply spraying system 100 includes the second temperature to detect the temperature of second Urea Media 42
Sensor 621, the second temperature sensor 621 are connected with the controller 1.
The urea supply spraying system 100 further includes being mounted in the first urea cylinder 61 and to described first
The electric heating wire 612 that Urea Media 41 is heated.
The urea supply spraying system 100 further includes the third solenoid valve 53 being connected with engine coolant.When described
When engine coolant is more than a certain temperature (such as 85 DEG C), the third solenoid valve 53 is opened, the engine coolant is utilized
Second Urea Media 42 is heated；
It please join shown in Fig. 1 and Fig. 2, the control method of the urea supply spraying system 100 includes the following steps:
S1: it when the controller 1 detects the temperature of second Urea Media 42 higher than second freezing point, opens
The second solenoid valve 52 simultaneously closes off first solenoid valve 51, and the controller 1 controls the urea pump 3 and carries out building pressure,
And second Urea Media 42 is sprayed into motor exhaust by the urea nozzle 2；At this point, controller is according to AUS40
Related data control the urea nozzle 2 and sprayed.
S2: when the controller 1 detects the temperature of second Urea Media 42 below or equal to second ice
When point, and when detecting that the temperature of first Urea Media 41 is higher than first freezing point, first solenoid valve 51 is opened,
The second solenoid valve 52 is simultaneously closed off, the controller 1 controls the urea pump 3 and carries out building pressure, and sprays by the urea
Mouth 2 sprays first Urea Media 41 into motor exhaust；At this point, controller controls institute according to the related data of AUS32
Urea nozzle 2 is stated to be sprayed.
S3: when the controller 1 detects the temperature of second Urea Media 42 below or equal to second ice
When point, and when detecting the temperature of first Urea Media 41 below or equal to first freezing point, the controller 1 is opened
The electric heating wire 612 is moved to heat first Urea Media 41；When the controller 1 detects first urea
When the temperature of medium 41 is higher than first freezing point, first solenoid valve 51 is opened, the second solenoid valve 52 is simultaneously closed off,
The controller 1 controls the urea pump 3 and carries out building pressure, and described in being sprayed into motor exhaust by the urea nozzle 2
First Urea Media 41；Preferably, when delivery temperature reaches certain numerical value, system starts to spray.
S4: when the engine coolant is more than a certain temperature, the third solenoid valve 53 is opened, the engine is utilized
Coolant liquid heats second Urea Media 42, is thawed；When the controller 1 detects second Urea Media 42
Temperature be higher than second freezing point when, open the second solenoid valve 52, simultaneously close off first solenoid valve 51, the control
Device 1 processed controls the urea pump 3 and carries out building pressure, and second urine is sprayed into motor exhaust by the urea nozzle 2
Plain medium.
Compared to the prior art, the utility model is by under normal use conditions, increasing a urea bucket and portion
AUS40 can be used under separating device and optimisation strategy in inland shipping or engineering machinery and road machine, and more
Energy conservation.In addition, the utility model can be effectively reduced engine warm-up time, because AUS32 urea is less, and compares AUS40,
- 10 DEG C or more only need to be heated to, i.e., required power consumption is substantially reduced.The concentration that the utility model is effectively utilized AUS40 is high,
The big advantage of density, can be improved the course continuation mileage of vehicle, reduce the consumption of the non-activity duration of vehicle.The utility model is also
The heat that engine is utilized in effect thaws to AUS40 by engine coolant, is recycled to energy.This is practical
Novel to be applied in inland shipping or road and engineering machinery, two kinds of urea flexibly switch according to use environment.
After the completion of system work, by the back suction of urea pump 3, it is then shut off valve road, can be reduced since gravity causes pipe
Liquid volume in road reduces defrosting power.Specifically, when engine is shut down, need to reduce to the greatest extent entire urea supply system
In the first Urea Media 41 and the second Urea Media 42 residual quantity, first turn on the second solenoid valve 52, simultaneously close off
First solenoid valve 51, the urea pump 3 are inverted, and 42 back suction of the second Urea Media in pipeline is returned the second urea cylinder
In 62, after the stipulated time to be achieved, it is then shut off second solenoid valve 52, opens simultaneously first solenoid valve 51, the urea
Pump 3 is inverted, and 41 back suction of the first Urea Media is returned in the first urea cylinder 61.Can shorten in this way power needed for pipeline heating with
And reduce the risk of the expansion of the urea as caused by low temperature.
In addition, above embodiments are merely to illustrate the utility model and not limit technical side described in the utility model
Case, understanding of this description should be based on persons of ordinary skill in the field, although this specification is referring to above-mentioned
Embodiment has been carried out detailed description to the utility model, still, those skilled in the art should understand that, affiliated skill
The technical staff in art field still can be modified or replaced equivalently the utility model, and all not depart from this practical new
The technical solution and its improvement of the spirit and scope of type, should all cover in the scope of the claims of the utility model.
Claims (7)
1. a kind of urea supply spraying system, the urea supply spraying system include controller, Urea Media, urea nozzle with
And the urea pump the Urea Media to be pumped into the urea nozzle, it is characterised in that: the Urea Media includes the
One Urea Media and the second Urea Media, the urea supply spraying system further include being connected to first Urea Media and institute
The second electromagnetism stating the first solenoid valve between urea pump and being connected between second Urea Media and the urea pump
Valve, first Urea Media have the first concentration and the first freezing point, and second Urea Media has the second concentration and second
Freezing point, wherein first concentration is less than second concentration, first freezing point is lower than second freezing point；
When the controller detects the temperature of second Urea Media higher than second freezing point, second electricity is opened
Magnet valve simultaneously closes off first solenoid valve, and the controller controls the urea pump and carries out building pressure, and is sprayed by the urea
Mouth sprays second Urea Media into motor exhaust；
When the controller detects the temperature of second Urea Media below or equal to second freezing point, and detect
When being higher than first freezing point to the temperature of first Urea Media, first solenoid valve is opened, simultaneously closes off described the
Two solenoid valves, the controller controls the urea pump and carries out building pressure, and is sprayed by the urea nozzle into motor exhaust
Penetrate first Urea Media.
2. urea supply spraying system as described in claim 1, it is characterised in that: the urea supply spraying system includes using
To detect the first temperature sensor of the temperature of first Urea Media, first temperature sensor and the controller phase
Even；The urea supply spraying system includes the second temperature sensor to detect the temperature of second Urea Media, institute
Second temperature sensor is stated to be connected with the controller.
3. urea supply spraying system as claimed in claim 2, it is characterised in that: first Urea Media is stored in
In one urea cylinder, second Urea Media is stored in the second urea cylinder.
4. urea supply spraying system as claimed in claim 3, it is characterised in that: the urea supply spraying system further includes
It is mounted in the first urea cylinder and the electric heating wire to be heated to first Urea Media.
5. urea supply spraying system as claimed in claim 4, it is characterised in that: when the controller detects described second
The temperature of Urea Media be below or equal to second freezing point when, and detect the temperature of first Urea Media be lower than or
When person is equal to first freezing point, the controller starts the electric heating wire and heats to first Urea Media；
When the controller detects the temperature of first Urea Media higher than first freezing point, first electricity is opened
Magnet valve simultaneously closes off the second solenoid valve, and the controller controls the urea pump and carries out building pressure, and is sprayed by the urea
Mouth sprays first Urea Media into motor exhaust.
6. urea supply spraying system as claimed in claim 5, it is characterised in that: the urea supply spraying system further includes
The third solenoid valve being connected with engine coolant opens the third when the engine coolant is more than a certain temperature
Solenoid valve heats second Urea Media using the engine coolant；
When the controller detects the temperature of second Urea Media higher than second freezing point, second electricity is opened
Magnet valve simultaneously closes off first solenoid valve, and the controller controls the urea pump and carries out building pressure, and is sprayed by the urea
Mouth sprays second Urea Media into motor exhaust.
7. urea supply spraying system as described in claim 1, it is characterised in that: first Urea Media is AUS32, the
Two Urea Medias are AUS40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821151729.9U CN208473963U (en) | 2018-07-20 | 2018-07-20 | Urea supply spraying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821151729.9U CN208473963U (en) | 2018-07-20 | 2018-07-20 | Urea supply spraying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208473963U true CN208473963U (en) | 2019-02-05 |
Family
ID=65211487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821151729.9U Active CN208473963U (en) | 2018-07-20 | 2018-07-20 | Urea supply spraying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208473963U (en) |
-
2018
- 2018-07-20 CN CN201821151729.9U patent/CN208473963U/en active Active
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