CN204082276U - A kind of liquid-adding device for urea solution tank - Google Patents
A kind of liquid-adding device for urea solution tank Download PDFInfo
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- CN204082276U CN204082276U CN201420361857.1U CN201420361857U CN204082276U CN 204082276 U CN204082276 U CN 204082276U CN 201420361857 U CN201420361857 U CN 201420361857U CN 204082276 U CN204082276 U CN 204082276U
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- liquid
- solution tank
- urea solution
- feeding mouth
- liquid feeding
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Abstract
The utility model discloses a kind of liquid-adding device for urea solution tank, it comprises liquid feeding mouth, filter screen and magnet ring, described liquid feeding mouth is arranged at the tank mouth place of urea solution tank, and described liquid feeding mouth offers filling opening, described filter screen is installed on one end of liquid feeding mouth, and described magnet ring is arranged at in the filter screen of liquid feeding mouth connecting end, wherein, described filling opening inwall offers several air vents, and the bottom of described filter screen is upwards provided with for the boss to separating liquid.Liquid-adding device for urea solution tank described above offers air vent in the filling opening of liquid feeding mouth, and air in urea solution tank can be got rid of in time, uses liquid feeding rifle filling solution without exception; Set up boss structure in filter screen bottom, in filling process, hydraulic shock is when boss face, and liquid can be shunted smoothly, prevents liquid splash, guarantees that filling process is smooth and easy.
Description
Technical field
The utility model relates to diesel engine selective catalysis and transforms SCR (Selective Catalyst Reduction) technology, particularly relates to a kind of liquid-adding device for the urea solution tank of selective catalytic conversion system of diesel engine SCR (Selective Catalyst Reduction).
Background technique
At present, the fast development of Motor Vehicle, along with creating serious pollution of atmosphere, presents region composite type feature.Many metropolitan pollution of atmosphere turn to coal smoke and automotive composite type to pollute by coal-smoke pollution, and minority megalopolis has obviously presented photochemical smog type (i.e. motor-vehicle tail-gas type) pollution of atmosphere.Therefore, the research of Diesel Emission Control Technologies: is of crucial importance and extremely urgent.
From the development of commercial car, diesel engine is its major impetus.General employing supercharging technology diesel-oil vehicle can meet the emission request in I stage, and the II stage have employed charge inter cooling, and the III stage introduces electronic fuel injection technology, and the IV stage needs to carry out reprocessing to diesel exhaust gas in above-mentioned technical foundation.
The exhaust after treatment system controlled at IV stage emission mainly contains two technology paths: (1) is discharged the reaction of+SCR Selective catalytic reduction reduce NOx emission by being optimized motor (emission controls by improving combustion technology, optimization oil spout, Optimizing Combustion etc.) reduction PM.(2) adopt EGR waste gas to reduce NOx emission+employing particulate trap at circulating technology and reduce PM discharge.Be more prone at present use the first scheme.
Urea solution tank is the vitals of selective catalytic conversion system of diesel engine SCR, and the existing urea solution tank for selective catalytic conversion system of diesel engine SCR exists following defect in urea filling process:
1) in the filling opening of conventional urea NaOH solution tank NaOH, bore is less, when using filling gun liquid feeding, the air in urea solution tank can not be discharged in time, causes solution to backflow excessive phenomenon;
2) conventional urea NaOH solution tank NaOH filling opening filter screen bottom is solid plane, and when using filling gun filling, urea liquid vertical impact is in solid plane, and cause urea liquid to splash, filling process has some setbacks.
Model utility content
The purpose of this utility model is to provide a kind of liquid-adding device for urea solution tank, and it can prevent urea solution tank liquid in urea liquid filling process from backflowing excessive, guarantees that filling process is smooth and easy.To solve the problems referred to above that in prior art, urea solution tank exists in filling urea liquid process.
For reaching this object, the utility model by the following technical solutions:
A kind of liquid-adding device for urea solution tank, it comprises liquid feeding mouth, filter screen and magnet ring, described liquid feeding mouth is arranged at the tank mouth place of urea solution tank, and described liquid feeding mouth offers filling opening, described filter screen is installed on one end of liquid feeding mouth, and described magnet ring is arranged at in the filter screen of liquid feeding mouth connecting end, wherein, described filling opening inwall offers several air vents, and the bottom of described filter screen is upwards provided with for the boss to separating liquid.
Especially, described boss is solid or any one of hollow-core construction.
Especially, described boss is conical structure.
Especially, described boss is made of plastics.
Especially, the grooved of described air vent is any one of rectangle, triangle, semicircle or circular arc.
Especially, described air vent is distributed in the inwall of described filling opening.
Especially, the removable linkage structure of screw-thread fit is adopted between described liquid feeding mouth and filter screen.
Especially, the bottom of described liquid feeding mouth offers outside thread, and the top corresponding to described filter screen offers internal thread.
Especially, described liquid feeding mouth is provided with the joint at the tank mouth place for liquid feeding mouth being installed on urea solution tank, described joint offers attachment hole.
The beneficial effects of the utility model are, compared with prior art the described liquid-adding device for urea solution tank has the following advantages:
1) in the filling opening of liquid feeding mouth, offer air vent, air in urea solution tank can be got rid of in time, prevent because air in tank can not be discharged in time, cause liquid to backflow excessive phenomenon, use liquid feeding rifle filling solution without exception;
2) set up boss structure in filter screen bottom, in filling process, hydraulic shock is when boss face, and liquid can be shunted smoothly, prevents liquid splash, guarantees that filling process is smooth and easy.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of the liquid-adding device for urea solution tank that the utility model embodiment 1 provides;
Fig. 2 is the plan view of the liquid-adding device for urea solution tank that the utility model embodiment 1 provides;
Fig. 3 is the enlarged view of the filling opening of the liquid-adding device for urea solution tank that the utility model embodiment 1 provides.
In figure:
1, liquid feeding mouth; 2, filter screen; 3, magnet ring; 4, joint; 5, attachment hole; 6, filling opening; 7, air vent; 8, boss.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
Refer to shown in Fig. 1 to Fig. 3, in the present embodiment, a kind of liquid-adding device for urea solution tank comprises liquid feeding mouth 1, filter screen 2 and magnet ring 3, described liquid feeding mouth 1 is provided with the joint 4 at the tank mouth place for liquid feeding mouth 1 being installed on urea solution tank, described joint 4 offers attachment hole 5.Described liquid feeding mouth 1 offers filling opening 6, and the bottom of described liquid feeding mouth 1 offers outside thread, and the top corresponding to described filter screen 2 offers internal thread, described liquid feeding mouth 1 and the removable linkage structure adopting internal and external screw thread to coordinate between filter screen 2.Described magnet ring 3 is arranged at in the filter screen 2 of liquid feeding mouth 1 connecting end, described filling opening 6 inwall offers the air vent 7 of several circular arcs vertically running through whole filling opening 6, described air vent 7 is distributed in the inwall of filling opening 6, the bottom of described filter screen 2 is upwards provided with for the conical boss 8 to separating liquid, and described boss 8 adopts solid construction and is made of plastics.
Above embodiment has just set forth basic principle of the present utility model and characteristic; the utility model does not limit by above-mentioned example; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various change and change, and these changes and change all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (9)
1. the liquid-adding device for urea solution tank, it comprises liquid feeding mouth, filter screen and magnet ring, described liquid feeding mouth is arranged at the tank mouth place of urea solution tank, and described liquid feeding mouth offers filling opening, described filter screen is installed on one end of liquid feeding mouth, and described magnet ring is arranged at in the filter screen of liquid feeding mouth connecting end, it is characterized in that, described filling opening inwall offers several air vents, and the bottom of described filter screen is upwards provided with for the boss to separating liquid.
2. the liquid-adding device for urea solution tank according to claim 1, is characterized in that, described boss is solid or any one of hollow-core construction.
3. the liquid-adding device for urea solution tank according to claim 1, is characterized in that, described boss is conical structure.
4. the liquid-adding device for urea solution tank according to any one of claims 1 to 3, is characterized in that, described boss is made of plastics.
5. the liquid-adding device for urea solution tank according to claim 1, is characterized in that, the grooved of described air vent is any one of rectangle, triangle, semicircle or circular arc.
6. the liquid-adding device for urea solution tank according to any one of claim 1 or 5, it is characterized in that, described air vent is distributed in the inwall of described filling opening.
7. the liquid-adding device for urea solution tank according to claim 1, is characterized in that, adopts the removable linkage structure of screw-thread fit between described liquid feeding mouth and filter screen.
8. the liquid-adding device for urea solution tank according to claim 7, is characterized in that, the bottom of described liquid feeding mouth offers outside thread, and the top corresponding to described filter screen offers internal thread.
9. the liquid-adding device for urea solution tank according to claim 1, is characterized in that, described liquid feeding mouth is provided with the joint at the tank mouth place for liquid feeding mouth being installed on urea solution tank, described joint offers attachment hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420361857.1U CN204082276U (en) | 2014-06-30 | 2014-06-30 | A kind of liquid-adding device for urea solution tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420361857.1U CN204082276U (en) | 2014-06-30 | 2014-06-30 | A kind of liquid-adding device for urea solution tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082276U true CN204082276U (en) | 2015-01-07 |
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| CN201420361857.1U Active CN204082276U (en) | 2014-06-30 | 2014-06-30 | A kind of liquid-adding device for urea solution tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047684A (en) * | 2014-06-30 | 2014-09-17 | 凯龙高科技股份有限公司 | Liquid adding device for urea solution tank |
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2014
- 2014-06-30 CN CN201420361857.1U patent/CN204082276U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047684A (en) * | 2014-06-30 | 2014-09-17 | 凯龙高科技股份有限公司 | Liquid adding device for urea solution tank |
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