CN204941656U - A kind of SCR system injection apparatus - Google Patents
A kind of SCR system injection apparatus Download PDFInfo
- Publication number
- CN204941656U CN204941656U CN201520488653.9U CN201520488653U CN204941656U CN 204941656 U CN204941656 U CN 204941656U CN 201520488653 U CN201520488653 U CN 201520488653U CN 204941656 U CN204941656 U CN 204941656U
- Authority
- CN
- China
- Prior art keywords
- urea solution
- outlet pipe
- pipe
- solution pump
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model relates to motor vehicle exhaust gases processing technology field, refer in particular to a kind of SCR system injection apparatus, comprise urea solution pump, urea solution tank, automobile auxiliary water tank and outlet pipe, automobile auxiliary water tank connects by radiator drain is corresponding with urea solution tank, radiator drain is corresponding with outlet pipe to be arranged, be provided with ammonia pipe between urea solution tank and urea solution pump, urea solution pump connects by ammonia injection pipe is corresponding with outlet pipe, is provided with SCR transducer in outlet pipe.The utility model carries out cooling heating by the cooling water of automobile auxiliary water tank to urea solution tank, prevent pipeline blockage, and produce ammonia, and after being extracted out by urea solution pump, outlet pipe is sprayed, the discharge of effective reduction nitrogen oxide, in addition, be provided with ultra-fine fibre glass thermal insulating material at urea solution tank skin, urea liquid temperature constant can be kept.
Description
Technical field
The utility model relates to motor vehicle exhaust gases processing technology field, refers in particular to a kind of SCR system injection apparatus.
Background technique
Urea and water are mixed into urea liquid by a certain percentage, can decomposite ammonia under its high temperature, SCR system utilizes ammonia that the reduction of nitrogen oxide in engine exhaust is become nitrogen, to reduce the discharge of nitrogen oxide, but, urea liquid, freezing lower than starting when-11 DEG C, causes pipeline blockage, and urea nozzle cannot normal injection, affect the discharge of motor, thus at low ambient temperatures, provide a kind of heating equipment, to ensure proper flow and the injection of urea liquid must to urea tank and pipeline.At present, urea tank and pipeline heating device mainly contain two kinds of modes: electric heating and engine coolant heating.Electric heating appliance is mainly used for urea pipe heating, is integrated in urea pipe by electric heating wire, and is wound around thermal insulating material outward at pipeline, and to keep urea liquid temperature constant, electric heating control is reliable, easily realize, but cost is too high; Engine coolant heating is mainly used for urea tank heating, also can be used for pipeline heating, but under low temperature environment, motor needs preheating, urea cannot be thawed in the short time.
Model utility content
For above problem, the utility model provides a kind of SCR system injection apparatus, carries out cooling heating, produce ammonia by the cooling water of automobile auxiliary water tank to urea solution tank, and after being extracted out by urea solution pump, outlet pipe is sprayed, effectively reduce the discharge of nitrogen oxide.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of SCR system injection apparatus, comprise urea solution pump, urea solution tank, automobile auxiliary water tank and outlet pipe, automobile auxiliary water tank connects by radiator drain is corresponding with urea solution tank, radiator drain is corresponding with outlet pipe to be arranged, ammonia pipe is provided with between urea solution tank and urea solution pump, urea solution pump connects by ammonia injection pipe is corresponding with outlet pipe, is provided with SCR transducer in outlet pipe.
Further, radiator drain is provided with the electronic two-way thermostat valve of DW type, and the electronic two-way thermostat valve of DW type is electrically connected with ECU ECU (Electrical Control Unit) by wire, and wire is provided with flow dontroller and field coil.
Further, urea solution pump is provided with solution pump outlet pipe and solution pump intake pipe, and solution pump outlet pipe is connected with urea solution tank respectively with solution pump intake pipe.
Further, urea solution tank skin is provided with ultra-fine fibre glass thermal insulating material, is provided with temperature transducer one and liquid level sensor in urea solution tank, and temperature transducer one and liquid level sensor are electrically connected on ECU ECU (Electrical Control Unit) respectively.
Further, outlet pipe is provided with temperature transducer two and NOx sensor, is provided with SCR transducer in outlet pipe, and temperature transducer two and NOx sensor are located at SCR transducer both sides respectively, and NOx sensor is located at exhaust outlet place.
Further, urea solution jet pipe is provided with nozzle, and nozzle connects in outlet pipe correspondence, and automobile auxiliary water tank is connected to nozzle by water tank injection pipe, and water tank injection pipe is provided with control valve.
Further, ECU ECU (Electrical Control Unit) is electrically connected with engine diagnosis system.
The beneficial effects of the utility model:
The utility model carries out cooling heating by the cooling water of automobile auxiliary water tank to urea solution tank, prevent pipeline blockage, and produce ammonia, and after being extracted out by urea solution pump, outlet pipe is sprayed, the discharge of effective reduction nitrogen oxide, in addition, be provided with ultra-fine fibre glass thermal insulating material at urea solution tank skin, urea liquid temperature constant can be kept.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
In figure: 1, urea solution pump; 2, ultra-fine fibre glass thermal insulating material; 3, urea solution tank; 4, temperature transducer one; 5, liquid level sensor; 6, ECU ECU (Electrical Control Unit); 7, automobile auxiliary water tank; 8, flow dontroller; 9, engine diagnosis system; 10, field coil; 11, temperature transducer two; 12, NOx sensor; 13, the electronic two-way thermostat valve of DW type; 14, nozzle; 15, outlet pipe; 16, solution pump outlet pipe; 17, solution pump intake pipe; 18, radiator drain; 19, ammonia injection pipe; 20, SCR transducer; 21, water tank injection pipe; 22, control valve; 23, ammonia pipe.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the technical solution of the utility model is described.
As shown in Figure 1, a kind of SCR system injection apparatus described in the utility model, comprise urea solution pump 1, urea solution tank 3, automobile auxiliary water tank 7 and outlet pipe 15, automobile auxiliary water tank 7 connects by radiator drain 18 is corresponding with urea solution tank 3, radiator drain 18 is corresponding with outlet pipe 15 to be arranged, be provided with ammonia pipe 23 between urea solution tank 3 and urea solution pump 1, urea solution pump 1 connects by ammonia injection pipe 19 is corresponding with outlet pipe 15, is provided with SCR transducer 20 in outlet pipe 15.The above forms the utility model basic structure.
Utility model works principle: automobile auxiliary water tank 7 is flowed out by radiator drain 18, through the heat of outlet pipe 15, cooling water is made to reach uniform temperature, be connected to urea solution tank 3 again, after making to reach uniform temperature in urea solution tank 3, produce ammonia, and extracted out by urea solution pump 1, sprayed in outlet pipe 15 by ammonia injection pipe 19 again, then discharge after SCR transducer 20 reacts, effectively reduce the discharge of nitrogen oxide.
Radiator drain 18 described in the utility model is provided with the electronic two-way thermostat valve 13 of DW type electronic two-way thermostat valve 13, DW type and is electrically connected with ECU ECU (Electrical Control Unit) 6 by wire, and wire is provided with flow dontroller 8 and field coil 10.The effect of field coil 10 is to form generator field.DW type electronic two-way thermostat valve 13 operation interval is between-10 DEG C ~ 48 DEG C, and the temperature that can meet urea liquid regulates, and DW type electronic two-way thermostat valve 13 precision is 1 DEG C simultaneously, can realize unmanned, automatic operation.First, set DW type electronic two-way thermostat valve 13 suitable temperature, higher than this temperature, ECU ECU (Electrical Control Unit) 6 stops action, radiator drain 18 can not flowing water out, ensure that the temperature of urea solution tank 3 can not continue to rise, when lower than setting temperature, the electronic two-way thermostat valve 13 of DW type is opened, and ECU ECU (Electrical Control Unit) 6 control flow check amount controller 8 carries out water flow control, after outlet pipe 15 waste-heat, flow into urea solution tank 3, meet the flat stationary temperature of urea solution tank 3.
Urea solution pump 1 described in the utility model is provided with solution pump outlet pipe 16 and solution pump intake pipe 17, and solution pump outlet pipe 16 is connected with urea solution tank 3 respectively with solution pump intake pipe 17.Adopt such setting to make to produce between urea solution pump 1 and urea solution tank 3 to circulate, effectively prevent line clogging.
Urea solution tank 3 skin described in the utility model is provided with ultra-fine fibre glass thermal insulating material 2, is provided with temperature transducer 1 and liquid level sensor 5 in urea solution tank 3, and temperature transducer 1 and liquid level sensor 5 are electrically connected on ECU ECU (Electrical Control Unit) 6 respectively.The effect of ultra-fine fibre glass thermal insulating material 2 can keep temperature constant in urea solution tank 3, and learns temperature in urea solution tank 3 and liquid level by temperature transducer 1 and liquid level sensor 5.
Outlet pipe 15 described in the utility model is provided with temperature transducer 2 11 and NOx sensor 12, and temperature transducer 2 11 and NOx sensor 12 are located at SCR transducer 20 both sides respectively, and NOx sensor 12 is located at outlet pipe 15 outlet port.The effect of temperature transducer 2 11 is the gas waste-heat temperature detecting outlet pipe 15 discharge, and NOx sensor 12 effect is to detect in the gas after SCR transducer 20 is changed containing how many nitrogen oxide.
Ammonia injection pipe 19 described in the utility model is provided with nozzle 14, and nozzle 14 connects in outlet pipe 15 correspondence, and automobile auxiliary water tank 7 is connected to nozzle 14 by water tank injection pipe 21, and water tank injection pipe 21 is provided with control valve 22.Ammonia injection pipe 19 carries out injection work by nozzle 14 pairs of outlet pipes 15, due to outlet pipe 15 effluent air temp too high time, cooling water in automobile auxiliary water tank 7 can be sprayed into nozzle 14 by water tank injection pipe 21, cooling process be carried out to nozzle 14, effectively improves the working life of nozzle 14.
ECU ECU (Electrical Control Unit) 6 described in the utility model is electrically connected with engine diagnosis system 9.On-Board Diagnostics can be carried out to motor by engine diagnosis system 9.
Be more than the utility model preferably mode of execution, the utility model those skilled in the art can also change above-mentioned mode of execution and revise.Therefore, the utility model is not limited to above-mentioned embodiment, and any apparent improvement that every those skilled in the art do on basis of the present utility model, replacement or modification all belong to protection domain of the present utility model.
Claims (7)
1. a SCR system injection apparatus, comprise urea solution pump (1), urea solution tank (3), automobile auxiliary water tank (7) and outlet pipe (15), it is characterized in that: described automobile auxiliary water tank (7) connects by radiator drain (18) is corresponding with urea solution tank (3), described radiator drain (18) is corresponding with outlet pipe (15) to be arranged, ammonia pipe (23) is provided with between described urea solution tank (3) and urea solution pump (1), described urea solution pump (1) connects by ammonia injection pipe (19) is corresponding with outlet pipe (15), SCR transducer (20) is provided with in described outlet pipe (15).
2. a kind of SCR system injection apparatus according to claim 1, it is characterized in that: described radiator drain (18) is provided with the electronic two-way thermostat valve (13) of DW type, the electronic two-way thermostat valve (13) of described DW type is electrically connected with ECU ECU (Electrical Control Unit) (6) by wire, and described wire is provided with flow dontroller (8) and field coil (10).
3. a kind of SCR system injection apparatus according to claim 1, it is characterized in that: described urea solution pump (1) is provided with solution pump outlet pipe (16) and solution pump intake pipe (17), and described solution pump outlet pipe (16) is connected with urea solution tank (3) respectively with solution pump intake pipe (17).
4. a kind of SCR system injection apparatus according to claim 1, it is characterized in that: described urea solution tank (3) skin is provided with ultra-fine fibre glass thermal insulating material (2), be provided with temperature transducer one (4) and liquid level sensor (5) in described urea solution tank (3), described temperature transducer one (4) is electrically connected on ECU ECU (Electrical Control Unit) (6) respectively with liquid level sensor (5).
5. a kind of SCR system injection apparatus according to claim 1, it is characterized in that: described outlet pipe (15) is provided with temperature transducer two (11) and NOx sensor (12), SCR transducer (20) is provided with in described outlet pipe (15), described temperature transducer two (11) is located at SCR transducer (20) both sides respectively with NOx sensor (12), and described NOx sensor (12) is located at outlet pipe (15) outlet port.
6. a kind of SCR system injection apparatus according to claim 1, it is characterized in that: described ammonia injection pipe (19) is provided with nozzle (14), described nozzle (14) is corresponding with outlet pipe (15) to be connected, described automobile auxiliary water tank (7) is connected to nozzle (14) by water tank injection pipe (21), and described water tank injection pipe (21) is provided with control valve (22).
7. a kind of SCR system injection apparatus according to claim 1, is characterized in that: described ECU ECU (Electrical Control Unit) (6) is electrically connected with engine diagnosis system (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488653.9U CN204941656U (en) | 2015-07-07 | 2015-07-07 | A kind of SCR system injection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488653.9U CN204941656U (en) | 2015-07-07 | 2015-07-07 | A kind of SCR system injection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204941656U true CN204941656U (en) | 2016-01-06 |
Family
ID=55009095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520488653.9U Active CN204941656U (en) | 2015-07-07 | 2015-07-07 | A kind of SCR system injection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204941656U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626203A (en) * | 2016-01-25 | 2016-06-01 | 三一重机有限公司 | Selective catalytic reduction (SCR) urea heating/cooling system and method |
| CN106523094A (en) * | 2016-12-29 | 2017-03-22 | 雷沃重工股份有限公司 | Control device for adjusting SCR temperature and agricultural machinery |
| CN111108269A (en) * | 2017-09-29 | 2020-05-05 | 大陆汽车有限公司 | Method for selective catalytic reduction by desorption of ammonia from a cartridge in an exhaust line |
-
2015
- 2015-07-07 CN CN201520488653.9U patent/CN204941656U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626203A (en) * | 2016-01-25 | 2016-06-01 | 三一重机有限公司 | Selective catalytic reduction (SCR) urea heating/cooling system and method |
| CN105626203B (en) * | 2016-01-25 | 2019-04-26 | 三一重机有限公司 | A kind of SCR Urea/cooling system and method |
| CN106523094A (en) * | 2016-12-29 | 2017-03-22 | 雷沃重工股份有限公司 | Control device for adjusting SCR temperature and agricultural machinery |
| CN111108269A (en) * | 2017-09-29 | 2020-05-05 | 大陆汽车有限公司 | Method for selective catalytic reduction by desorption of ammonia from a cartridge in an exhaust line |
| US11149608B2 (en) | 2017-09-29 | 2021-10-19 | Continental Automotive France | Method for selective catalytic reduction with desorption of ammonia from a cartridge in an exhaust line |
| CN111108269B (en) * | 2017-09-29 | 2022-03-01 | 大陆汽车有限公司 | Method for selective catalytic reduction by desorption of ammonia from a cartridge in an exhaust line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203308560U (en) | Engine cooling recirculation system, and corresponding engine and automobile | |
| CN207705315U (en) | A kind of commercial car fuel cell heat management system | |
| EP2065578A1 (en) | Heating system for chemical used in exhaust purification system | |
| CN103912352B (en) | Solid-state selective catalytic reduction system operating (SSCR) ammonia flow precise controlling device | |
| CN204941656U (en) | A kind of SCR system injection apparatus | |
| CN103249924B (en) | Reagent tank normalizing system | |
| CN203532016U (en) | Urea spray feeding device with heater | |
| CN201891478U (en) | Device for heating urea tank and pipeline of selective catalytic reduction (SCR) system by engine exhaust | |
| CN105569784A (en) | Automotive urea machine heating device and urea machine applying same | |
| CN105626203B (en) | A kind of SCR Urea/cooling system and method | |
| CN102808680A (en) | Control method for SCR system low-temperature thawing | |
| EP3236032B1 (en) | Selective catalytic reduction system and method for controlling temperature of reductant injection module | |
| CN204371459U (en) | The SCR system of purifying vehicle engine exhaust gas and the transmission & distribution module for this system | |
| CN202493330U (en) | Vehicle-mounted cooling system | |
| CN102852602A (en) | SCR (selective catalytic reduction) system for vehicles | |
| CN209764395U (en) | High-temperature-resistant detection device for urea nozzle | |
| SE1051272A1 (en) | Reducing agent storage system with heating device | |
| CN111305933B (en) | Urea injection device, urea tank for heating urea and heating method | |
| CN204099011U (en) | Solid-state selective catalytic reduction system operating ammonia flow precise controlling device | |
| CN106988838B (en) | Exhaust aftertreatment pipeline system of internal combustion engineering machinery | |
| CN104500183A (en) | Siphon type Adblue urea adding method and device | |
| CN210622946U (en) | Cold start control system of engineering machinery and land leveler | |
| CN203756292U (en) | Heating device for SCR system urea container | |
| CN202789283U (en) | Novel engine quick heating device | |
| CN208112436U (en) | A kind of motor bench electricity consumption oil cooled system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |