CN105569784B - A kind of urea for vehicle machine heating device and use its urea machine - Google Patents
A kind of urea for vehicle machine heating device and use its urea machine Download PDFInfo
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- CN105569784B CN105569784B CN201610094689.8A CN201610094689A CN105569784B CN 105569784 B CN105569784 B CN 105569784B CN 201610094689 A CN201610094689 A CN 201610094689A CN 105569784 B CN105569784 B CN 105569784B
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- heat
- urea
- heating coil
- coil
- vehicle machine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The present invention relates to urea for vehicle machine technical field more particularly to a kind of urea for vehicle machine heating device and use its urea machine.Urea for vehicle machine heating device includes heat source, and the heat transfer pipeline for being transmitted to the heat that heat source generates；The heat transfer pipeline includes circulation line, and heat exchange coil and heating coil are provided on the circulation line, heat transferring medium is provided in circulation line, and heat exchange coil carries out heat exchange with heat source, and lead to heat transferring medium by heat transmission to heating coil.Meanwhile additionally providing the urea machine for using above-mentioned urea for vehicle machine heating device.In the present invention heat is provided by heat source, and the heat transfer for being generated heat source by circulation line heats urea liquid by heating coil to heating coil, avoids because heat source and urea liquid are in direct contact, caused urea liquid is contaminated, the problem of decomposing.
Description
Technical field
The present invention relates to urea for vehicle machine technical field more particularly to a kind of urea for vehicle machine heating device and use its
Urea machine.
Background technology
Urea for vehicle solution is a kind of use in SCR technology (Selective Catalytic
Reduction Technology, abbreviation SCR) in, for reducing the liquid of the nitrogen oxides pollution in exhaust gas from diesel vehicle.It belongs to
It, can be by being synthesized with a certain proportion of superpurity urea for vehicle and pure water in nitrous oxides selectivity catalytic reducer.Diesel vehicle
After this urea for vehicle solution, the nitrogen oxides in exhaust emissions can be broken down into free of contamination nitrogen and vapor,
Haze pollution can directly be reduced.
Urea for vehicle is produced by urea machine, and the mode of heating of urea machine mainly uses electrical bar and solution straight at present
The mode of contact heats, and in this way can add impurities in solution, and it is excessively high to heat rod surface temperature, can be by urea liquid point
Solution, influences product quality.In addition, existing urea machine mode of heating mainly heats mixed solution, it is not right in advance
Pure water is heated, and solution heats waiting for a long time, low production efficiency, cannot accurately control the temperature of liquid.
In view of the above-mentioned problems, propose a kind of urea for vehicle machine heating device, can solution in the prior art because directly using
Electrical bar heats urea liquid in a manner of being in direct contact, and causes to add impurities to urea liquid and urea liquid decomposes
The problem of.
Invention content
It is an object of the invention to propose a kind of urea for vehicle machine heating device, can solve in the prior art because directly adopting
Urea liquid is heated in a manner of being in direct contact with electrical bar, causes to add impurities to urea liquid and urea liquid point
The problem of solution.
Another object of the present invention is to propose a kind of urea for vehicle machine, urea for vehicle as described above is used to add
Thermal.
For this purpose, the present invention uses following technical scheme：
A kind of urea for vehicle machine heating device, including heat source, and the heat for being transmitted to the heat that heat source generates
Measure transfer pipeline；
The heat transfer pipeline includes circulation line, is provided with heat exchange coil and heating coil on the circulation line, follows
Be provided with heat transferring medium in endless tube road, and heat exchange coil and heat source carry out heat exchange, and logical heat transferring medium by heat transmission extremely
Heating coil.
As a kind of preferred embodiment of above-mentioned urea for vehicle machine heating device, including three heating coils, heating coil point
It Wei not the first heating coil, the second heating coil and third heating coil；
First heating coil, the second heating coil and third heating coil are arranged in parallel, and are respectively used to pure water tank, stirring
The heating of tank and finished pot.
As a kind of preferred embodiment of above-mentioned urea for vehicle machine heating device, the input end of the heating coil is provided with control
Heat transferring medium processed enters the solenoid valve of heating coil, and outlet end is provided with check valve.
As a kind of preferred embodiment of above-mentioned urea for vehicle machine heating device, in the pure water tank, agitator tank and finished pot
It is both provided with temperature sensing package, and the first heating coil, the second heating coil and second are controlled according to the temperature value that temperature sensing package detects
The work of heating coil.
As a kind of preferred embodiment of above-mentioned urea for vehicle machine heating device, the heat source includes heat pump system, the heat
The condenser of pumping system carries out heat exchange with heat exchange coil, and transfers heat in the heat transferring medium in heat exchange coil.
As a kind of preferred embodiment of above-mentioned urea for vehicle machine heating device, the heat source includes being arranged on circulation line
Electric heater unit.
As a kind of preferred embodiment of above-mentioned urea for vehicle machine heating device, fluid infusion is provided on the circulation line.
As a kind of preferred embodiment of above-mentioned urea for vehicle machine heating device, expansion drum is provided on the circulation line.
As a kind of preferred embodiment of above-mentioned urea for vehicle machine heating device, automatic exhaust is provided on the circulation line
Valve.
A kind of urea for vehicle machine comprising urea for vehicle machine heating device as described above.
Beneficial effects of the present invention are：In the present invention, heat is provided by heat source, and is produced heat source by circulation line
Raw heat transfer heats urea liquid to heating coil, by heating coil, avoids because of heat source and urea liquid
It is in direct contact, caused urea liquid is contaminated, the problem of decomposing.
Description of the drawings
Fig. 1 is the structural schematic diagram for the urea for vehicle machine heating device that the specific embodiment of the invention provides；
Fig. 2 is the structural schematic diagram to heating device temperature control mode that the specific embodiment of the invention provides.
Wherein：
1：First heating coil；2：Second heating coil；3：Third heating coil；4：Pure water tank；5：Agitator tank；6：Finished product
Tank；7：First solenoid valve；8：Second solenoid valve；9：Third solenoid valve；10：First temperature sensing package；11：Second temperature sensing package；12：Third
Temperature sensing package；13：First normally closed switch；14：Second normally closed switch；15：Second normal open switch；16：First normal open switch；17：Heat
Pumping system；18：Electric heater unit；19：Fluid infusion；20：Expansion drum；21：Automatic exhaust steam valve；22：Water pump.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, present embodiments provide for a kind of urea for vehicle heating device, which includes
Heat source, and the heat transfer pipeline for being transmitted to the heat that heat source generates.
Heat transfer pipeline includes circulation line, and heat exchange coil and heating coil, circulation pipe are provided on the circulation line
Heat transferring medium is provided in road, and heat exchange coil carries out heat exchange with heat source, and logical heat transferring medium extremely heats heat transmission
Coil pipe.
In present embodiment, heat is provided by heat source, and the heat transfer for heat source being generated by circulation line extremely adds
Hot coil heats urea liquid by heating coil, avoids because heat source and urea liquid are in direct contact, caused urine
Plain solution is contaminated, the problem of decomposing.
Urea for vehicle machine heating device includes three heating coils, and heating coil is respectively that the first heating coil 1, second adds
Hot coil 2 and third heating coil 3.
First heating coil 1, the second heating coil 2 and third heating coil 3 are arranged in parallel, and be respectively used to pure water tank 4,
The heating of agitator tank 5 and finished pot 6.
In the present embodiment, it by the heating to pure water tank 4, agitator tank 5 and finished pot 6, may be implemented to three tanks
Internal fluid temperature is controlled, and especially by the heating to pure water, is shortened the heating time of urea liquid, is improved life
Produce efficiency.
The input end of heating coil is provided with the solenoid valve that control heat transferring medium enters heating coil, and outlet end is provided with
Check valve.Be arranged the input end of the first heating coil 1 solenoid valve be the first solenoid valve 7, be arranged in the second heating coil 2
The solenoid valve of input end be second solenoid valve 8, be arranged the input end of third heating coil 3 solenoid valve be third solenoid valve 9.
By the control of solenoid valve, the temperature of liquid in pure water tank 4, agitator tank 5 and finished pot 6 can be controlled.Specifically, logical
Cross whether solenoid valve control heat transferring medium flows to heating coil, to realize the temperature control to pure water tank 4, agitator tank 5 and finished pot 6
System.
Temperature sensing package, and the temperature value control detected according to temperature sensing package are both provided in pure water tank 4, agitator tank 5 and finished pot 6
Make the work of the first heating coil 1, the second heating coil 2 and the second heating coil 3.
Specifically, the temperature sensing package being arranged in pure water tank 4, agitator tank 5 and finished pot 6 is the first temperature sensing package 10, respectively
Two temperature sensing packages 11 and third temperature sensing package 12, wherein the first temperature sensing package 10 is connected by the first circuit controls host, on the first circuit
There are two normally closed switch for setting, and two normally closed switch are the first normally closed switch 13 and the second normally closed switch 14 respectively.Second temperature-sensitive
Packet 11 is connect by second circuit with the first circuit, and third temperature sensing package 13 is connect by tertiary circuit with the first circuit, the second electricity
Road is provided with the second normal open switch, and the first normal open switch 16 is provided on tertiary circuit.
The above-mentioned specific course of work of temperature sensing package is：Temperature sensing package is detected by the control to normal open switch and normally closed switch
Temperature, specifically, under normal circumstances control host connect the first temperature sensing package 10, ensure its pure water water temperature be not less than 45 DEG C；Such as
Fruit detects that agitator tank 5 or 6 temperature of finished pot are less than 5 DEG C (being detected by temp probe), then disconnects first by circuit control
Temperature sensing package 10 and the second temperature sensing package 11 of closure or third temperature sensing package 12, are detected the temperature of agitator tank 5 or finished pot 6.
Further include passing through temperature other than being monitored to the temperature of pure water tank 4, agitator tank 5 and finished pot 6 using temperature sensing package
Degree probe is detected their temperature, is used for moisturizing, the stirring etc. according to three containers of control.
Above-mentioned heat source includes heat pump system 17, and condenser and the heat exchange coil of heat pump system 17 carry out heat exchange, and will
Heat transfer is in the heat transferring medium in heat exchange coil.Heat transferring medium is water.
Heat source includes the electric heater unit 18 being arranged on circulation line.It in the present embodiment, can be at least through heat
One of pumping system 17 or electric heater unit 18 exchange thermal medium are heated.
It is provided with fluid infusion 19, expansion drum 20, automatic exhaust steam valve 21 on circulation line, and is carried for the cycle of heat transferring medium
For the water pump 22 of power.
In the present embodiment, a kind of urea for vehicle machine is additionally provided comprising urea for vehicle machine as described above adds
Thermal.
In order to which above-mentioned urea for vehicle machine heating device is further detailed, in present embodiment, additionally provide
State the specific course of work of urea for vehicle machine heating device：
1, the heating of pure water tank 4：Unit (urea for vehicle machine) sets 50 DEG C of shutdown temperature, when unit detects pure water tank 4
Unit opens heating when temperature is less than 45 DEG C, and the first solenoid valve 7 is opened, and second solenoid valve 8 and third solenoid valve 9 are closed, unit
Start to heat to pure water tank 4, when water tank temperature reaches 50 DEG C, compressor emergency shutdown.
2, the heating of agitator tank 5：When detecting that 5 water temperature of pure water tank is higher than 45 DEG C and water is more than 180L, water pump (does not regard
Go out) 180L pure water pumps to agitator tank 5, and the urea that corresponding ratio is added be stirred until configuration complete, then again
Solution pump is to finished pot 6 in agitator tank 5.If finished pot 6 is not enough to accommodate 180L, directly it is stored in agitator tank 5.Work as inspection
When measuring in agitator tank 5 temperature and being less than 5 DEG C, the second normally closed switch 14 disconnects, and the second normal open switch 15 is attracted, and unit can detect
Second temperature sensing package temperature 11 is less than 5 DEG C, and second solenoid valve 8 is opened, and the first solenoid valve 7 and third solenoid valve 9 are closed, and unit starts
Agitator tank 5 is heated, when 5 temperature of agitator tank reaches 30 DEG C, the second normally closed switch 14 re-closes, and the second normal open switch 15 is disconnected
It opens.
3, finished pot 6 heats：When detecting that temperature is less than 5 DEG C in finished pot 6, the first normally closed switch 13 disconnects, and first
Normal open switch 16 is attracted, and unit can detect that 12 temperature of third temperature sensing package is less than 5 DEG C, and third solenoid valve 9 is opened, the first solenoid valve
7 and second solenoid valve 8 be closed, unit start to finished pot 6 heat, when 6 temperature of finished pot reaches 30 DEG C, the first normally closed switch
13 re-close, and the first normal open switch 16 disconnects.
4, when the conflict of the demand for heat of three containers, preferentially to finished pot 6, secondly to agitator tank 5, finally to pure water tank
4 are heated.Since dissolved urea needs to absorb heat, the water in pure water tank 4 enters agitator tank 5, adds temperature after urea
Degree can reduce, in the feelings not heated after the ratio urea perfect solution that the urea and pure water set in the present embodiment is added
Temperature is not above 30 DEG C under condition.Therefore temperature does not exceed 30 DEG C when the solution in finished pot 6 does not heat.
5, the entry condition of electric heater unit 18 is：18 set environment temperature of electric heater unit is opened when being less than 5 DEG C.By
This, can improve the efficiency of heating surface and reduce the consumption of the energy.
6, antifreeze operation：When environment temperature is less than 2 DEG C, water outlet temperature sensing package is less than 10 DEG C, the antifreeze state of unit sleeve pipe.
And under standby mode, the first solenoid valve 7, second solenoid valve 8 and third solenoid valve 9 are all open state
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and it cannot be construed to limiting the scope of the invention in any way.Based on the explanation herein, the technology of this field
Personnel would not require any inventive effort the other specific implementation modes that can associate the present invention, these modes are fallen within
Within protection scope of the present invention.
Claims (8)
1. a kind of urea for vehicle machine heating device, including heat source, which is characterized in that further include heat for being generated to heat source into
The heat transfer pipeline of row transmission；
The heat transfer pipeline includes circulation line, and heat exchange coil and heating coil, circulation pipe are provided on the circulation line
Heat transferring medium is provided in road, and heat exchange coil carries out heat exchange with heat source, and logical heat transferring medium extremely heats heat transmission
Coil pipe；
Heating coil is respectively the first heating coil (1), the second heating coil (2) and third heating coil (3)；
First heating coil (1), the second heating coil (2) and third heating coil (3) are arranged in parallel, and are respectively used to pure water tank
(4), the heating of agitator tank (5) and finished pot (6)；
The input end of heating coil is provided with the solenoid valve that control heat transferring medium enters heating coil, and outlet end is provided with unidirectionally
Valve.
2. urea for vehicle machine heating device according to claim 1, which is characterized in that the pure water tank (4), agitator tank
(5) and in finished pot (6) be both provided with temperature sensing package, and according to the temperature value that temperature sensing package detects control the first heating coil (1),
The work of second heating coil (2) and the second heating coil (3).
3. urea for vehicle machine heating device according to claim 1, which is characterized in that the heat source includes heat pump system
(17), the condenser Yu heat exchange coil of the heat pump system (17) carry out heat exchange, and transfer heat in heat exchange coil
Heat transferring medium in.
4. urea for vehicle machine heating device according to claim 1 or 3, which is characterized in that the heat source (17) includes setting
Set the electric heater unit (18) on circulation line.
5. urea for vehicle machine heating device according to claim 1, which is characterized in that be provided with benefit on the circulation line
Liquid mouth (19).
6. urea for vehicle machine heating device according to claim 1, which is characterized in that be provided on the circulation line swollen
Swell (20).
7. urea for vehicle machine heating device according to claim 1, which is characterized in that be provided on the circulation line certainly
Dynamic air bleeding valve (21).
8. a kind of urea for vehicle machine, which is characterized in that include the urea for vehicle machine heating as described in claim 1-7 any one
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094689.8A CN105569784B (en) | 2016-02-19 | 2016-02-19 | A kind of urea for vehicle machine heating device and use its urea machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094689.8A CN105569784B (en) | 2016-02-19 | 2016-02-19 | A kind of urea for vehicle machine heating device and use its urea machine |
Publications (2)
| Publication Number | Publication Date |
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| CN105569784A CN105569784A (en) | 2016-05-11 |
| CN105569784B true CN105569784B (en) | 2018-08-07 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042080A (en) * | 2016-12-13 | 2017-08-15 | 珠海格力智能装备有限公司 | Urea machine |
| CN106731911B (en) * | 2016-12-13 | 2023-01-20 | 珠海格力智能装备有限公司 | Urea machine |
| CN106669477A (en) * | 2016-12-14 | 2017-05-17 | 珠海格力智能装备有限公司 | Preparation method and equipment of urea solution for vehicle |
| CN106853352A (en) * | 2016-12-21 | 2017-06-16 | 成都乾威科技有限公司 | Urea for vehicle pure water charging method |
| CN106731915A (en) * | 2016-12-21 | 2017-05-31 | 成都乾威科技有限公司 | Urea for vehicle pure water heats loading system |
| CN106492664A (en) * | 2016-12-21 | 2017-03-15 | 成都乾威科技有限公司 | Urea for vehicle process units |
| CN106582338A (en) * | 2016-12-21 | 2017-04-26 | 成都乾威科技有限公司 | Automotive urea production technology |
| CN106582337A (en) * | 2016-12-21 | 2017-04-26 | 成都乾威科技有限公司 | Pure water heating and injecting method for diesel exhaust fluid production |
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