CN102865127B - Urea box filling mouth of pipe ammonia concentration control device - Google Patents
Urea box filling mouth of pipe ammonia concentration control device Download PDFInfo
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- CN102865127B CN102865127B CN201210346730.8A CN201210346730A CN102865127B CN 102865127 B CN102865127 B CN 102865127B CN 201210346730 A CN201210346730 A CN 201210346730A CN 102865127 B CN102865127 B CN 102865127B
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- urea
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- ammonia
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Abstract
The present invention relates to a kind of urea box filling mouth of pipe ammonia concentration control device, described control gear is arranged on urea casing, it is characterized in that, described control gear comprises at least one urea filler pipe, regulate the control unit of ammonia concentration with being used for, described control unit comprises control valve and at least two urea filling exhaust pipes.This control gear structure is simple, cost is lower, easy to operate, achieve ammonia discharge on a small quantity and ammonia exhaust port away from the object of the urea filling mouth of pipe, decrease the harm of ammonia to user's body, reduce the pollution level to air.
Description
Technical field
The present invention relates to a kind of ammonia concentration control device, relate in particular to a kind of urea box filling mouth of pipe ammonia concentration control device.
Background technique
Along with the enhancing of world government environmental protection consciousness, relevant policy and regulation propose stricter requirement to automobile main frame maker, particularly require more and more stricter to discharged nitrous oxides in vehicle exhaust, along with the enforcement of EURO6, the emission limit of nitrogen oxide is 0.07g/km, meet this requirement, just current controlling method, each assembly plant mainly adopts selective catalytic reduction system operating SelectiveCatalyticReduction, i.e. SCR system; Utilize this system that urea for vehicle solution is sprayed into offgas duct and NO
xthere is chemical reaction, be finally converted into nitrogen and water discharge.So SCR system can solve exhaust gas from diesel vehicle NO effectively
xemission problem, but need in SCR system to use urea liquid, and this solution can resolve into the toxic gas-ammonia with penetrating odor.And the SCR urea box storage system be applied to now on car body is when annotating urea liquid, urea box is inner to be produced certain density ammonia and directly can be discharged in air by the filling mouth of pipe opened and the filling exhaust mouth of pipe when annotating, not only can produce corrosive action to some parts around vehicle body, but also may endanger carry out urea filling staff healthy, also comparatively serious pollution is produced to air, therefore, those skilled in the art is finding suitable equipment always and is solving the problem, but effect is not ideal.
Summary of the invention
The present invention just for the technical problem existed in prior art, provide a kind of structure simple,
Cost is lower, be easy to the urea box filling mouth of pipe ammonia concentration control device that operates, and this device not only can realize a small amount of discharge of ammonia, and ammonia exhaust port to be annotated the mouth of pipe away from urea, decreases the harm that ammonia is healthy to staff.
In order to solve the problems of the technologies described above, technological scheme of the present invention is as follows, a kind of urea box filling mouth of pipe ammonia concentration control device, described control gear is arranged on urea casing, it is characterized in that, described control gear comprises at least one urea filler pipe, and is used for regulating the control unit of ammonia concentration.
As a modification of the present invention, described control unit comprises control valve and at least two urea filling exhaust pipes.The arrangement achieves the discharge that ammonia is a small amount of, and ammonia exhaust port to be annotated the mouth of pipe away from urea, decreases the harm that ammonia is healthy to staff.
As a modification of the present invention, described control valve comprises pressure retaining valve and unidirectional spring valve,
Wherein pressure retaining valve is arranged between two adjacent filling exhaust pipes, and unidirectional spring valve is arranged between urea filler pipe and the filling exhaust pipe adjacent with this urea filler pipe.Unidirectional spring valve makes part ammonia at urea box, forms circulation between filling exhaust pipe and urea filler pipe; After in urea box, ammonia acquires a certain degree, ammonia backs down pressure retaining valve, is discharged in air by the filling exhaust pipe communicated with air.
As a modification of the present invention, described urea filler pipe comprises entering of control urea filling
Mouth control valve and the filling mouth of pipe.
As a modification of the present invention, described urea filling exhaust pipe comprises and is arranged at outlet pipe
The exhaust fitting at top and be arranged at the filling exhaust valve that exhaust pipe lower part is connected with urea box.
As a modification of the present invention, described control unit comprises the first controlling component, second
Controlling component and at least two urea filling exhaust pipes.
As a modification of the present invention, described first controlling component comprises valve body bearing, sealing
Structure, and be fixed on the spring on valve body bearing, sealing configuration is connected with valve body bearing by spring.
As a modification of the present invention, described second controlling component is urea filling gun, by urea filling gun, urea is injected urea filler pipe.
As a modification of the present invention, described first controlling component also comprises O-ring seal, and described O-ring seal contacts with filling exhaust inner tube wall, is fixed on sealing configuration.First sealing circle ensures the sealing to ammonia and urea liquid between sealing configuration and outlet pipe inwall; Secondly, the perforate that guarantee sealing configuration can not be leading to the outlet pipe of air in the process moved back and forth is blocked, and plays buffer function.
As a modification of the present invention, described urea filler pipe is connected with urea box by urea box filler pipe joint.
Relative to prior art, advantage of the present invention is as follows, and structure is simple, cost is lower, easy to operate, achieve ammonia discharge on a small quantity and ammonia exhaust port away from the object of the urea filling mouth of pipe, decrease the harm of ammonia to user's body, reduce the pollution level to air.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is part-structure enlarged view in embodiment 1;
Fig. 3 is the embodiment of the present invention 4 structural representation;
Fig. 4 is that the invention process 4 filling starts schematic diagram;
Fig. 5 is schematic diagram in the invention process 4 filling process;
Fig. 6 is that the invention process 4 filling terminates schematic diagram;
In figure: 1 is the urea box filling mouth of pipe, and 2 is unidirectional spring valve, and 3 is pressure retaining valve, and 4 is exhaust fitting, 5 is filling exhaust pipe, and 6 is filling exhaust pipe, and 7 is filling exhaust valve, and 8 is urea box housing, 9 is inlet control valve, and 10 is urea filler pipe, and 21 is filling gun, 22 is the filling mouth of pipe, and 23 is sealing configuration, and 24 is O-ring seal, 25 is spring, and 26 is valve body bearing, and 271 is filling exhaust pipe, 272 is filling exhaust pipe, and 28 is urea box filler pipe, and 29 is urea box filler pipe joint.
Embodiment
In order to deepen the understanding of the present invention and understanding, below in conjunction with accompanying drawing, the present invention is described in detail.
embodiment 1:
See Fig. 1,2, urea box filling mouth of pipe ammonia concentration control device, described control gear is arranged on urea box housing 8, and control gear comprises at least one urea filler pipe, and is used for regulating the control unit of ammonia concentration.Control unit comprises control valve and at least two filling exhaust pipes 5,6, wherein filling exhaust pipe 6 is connected with urea box housing 8, another filling exhaust pipe 5 communicates with air, described control valve comprises pressure retaining valve 3 and unidirectional spring valve 2, wherein pressure retaining valve 3 is arranged between two adjacent filling exhaust pipes, and unidirectional spring valve 2 is arranged between urea filler pipe and the filling exhaust pipe adjacent with this urea filler pipe.Adopt pressure retaining valve 3 in the present invention and the design of exhaust pipe mouth away from filling mouth of pipe operation interface is set.Outlet pipe near Position Design pressure retaining valve 3 of the filling mouth of pipe and final outlet pipe opening away from user interface.Meanwhile, be provided with a unidirectional spring valve 2 between outlet pipe and the urea filling mouth of pipe, this unidirectional spring valve utilizes gas pressure to control the opening and closing of self; During filling, the unidirectional spring valve of outlet pipe and the filling mouth of pipe is opened, and the two is in the state communicated, and when stopping filling, unidirectional spring valve cuts out, and the two is in non-communicating state.When carrying out urea filling, first a large amount of ammonias produced during filling can back down the unidirectional spring valve 2 in the filling mouth of pipe, part ammonia is in urea box 8, formation circulation between outlet pipe 6 and filler pipe 10, and the pressure retaining valve 3 now in filling exhaust pipe is also in closed condition; When the ammonia in casing reaches certain pressure, pressure retaining valve 3 is opened, part ammonia by by away from filling the mouth of pipe outlet pipe 5 opening be discharged in air.
Utilize this kind of structural design, both can certain density ammonia was limited in urea box, emissions reduction to Ammonia in Air Gas content, meanwhile, also by discharge ammonia away from user interface, decrease the body harm to user.
Annotated by the urea liquid ammonia concentration of the mouth of pipe of this technological scheme controls in certain scope, can meet the test standard that some are relevant, also reduce the harm to client's health.
embodiment 2:
See Fig. 1,2, described urea filler pipe 10 comprises the inlet control valve 9 and the filling mouth of pipe 1 that control urea filling.Inlet control valve 9 is used for the number of the urea amount controlling to add.All the other structures are identical with embodiment 1 with advantage.
embodiment 3:
See Fig. 1,2, described urea filling exhaust pipe 6 comprises the exhaust fitting 4 that is arranged at outlet pipe top and is arranged at the filling exhaust valve 7 that exhaust pipe lower part is connected with urea box.All the other structures are identical with embodiment 1 with advantage.
embodiment 4:
See Fig. 3, urea box filling mouth of pipe ammonia concentration control device, described control gear is arranged on urea box housing 8, and control gear comprises at least one urea box filler pipe 29, and is used for regulating the control unit of ammonia concentration.Described control unit comprises the first controlling component, the second controlling component and at least two filling exhaust pipes 271 and 272, wherein filling exhaust pipe 272 is connected with urea box housing 8, another filling exhaust pipe 271 communicates with air, described first controlling component comprises valve body bearing 26, sealing configuration 23, and the spring 25 be fixed on valve body bearing, sealing configuration 23 is connected with valve body bearing 26 by spring 25, and described second controlling component is urea filling gun 21.In the present invention, the open at one end of filling exhaust pipe 271 to be arranged near urea filler pipe and outlet pipe Open Side Down and away from the filling mouth of pipe 22, the opening and closing of exhaust pipe mouth are controlled by the triggering of filling gun 21, simultaneously, when annotating, the state sealed almost is kept between urea filling gun 21 and the filling mouth of pipe 22, avoiding a large amount of ammonias is gathered within the scope of user interface, during non-filling state, the ammonia produced in urea box housing is discharged in outside air by work outlet valve, thus reduces the ammonia concentration around filling mouth of pipe operation interface.
See Fig. 4-Fig. 6, carrying out in urea filling process, when urea filling gun 21 injects the urea filling mouth of pipe 22 and moves down, filling gun 21 contacts with sealing configuration 23 and in the process moved down, promotes sealing configuration 23 and moves backward, thus open the opening of filling exhaust pipe 271, the ammonia now produced in urea filling process is discharged in air by the filling exhaust pipe 271 opened, because filling exhaust pipe 271 opening is away from the filling mouth of pipe, therefore a large amount of ammonias can not be gathered in user interface.
When stopping the filling of urea, filling gun 21 exits the filling mouth of pipe, now sealing configuration 23 utilizes the tension force of spring 25 to travel forward, until filling gun 21 exits the filling mouth of pipe 22 completely, spring 25 recovers deformation, sealing configuration 23 is kept in the center and is again sealed by filling exhaust pipe 271 opening, and the ammonia in urea box is in urea box housing 8, formation circulation between filling exhaust pipe 272 and urea box filler pipe 28, and unnecessary ammonia can be discharged in air by work outlet valve.Urea liquid can the be annotated ammonia concentration of the mouth of pipe of this technological scheme controls in certain scope, can meet the test standard that some are relevant, also reduce the harm to client's health.
embodiment 5:
Described first controlling component also comprises O-ring seal 24, and the quantity of seal ring is 2, and wherein O-ring seal 24 contacts with filling exhaust pipe 271 inwall, is fixed on sealing configuration.First sealing circle ensures the sealing to ammonia and urea liquid between sealing configuration and filling exhaust inner tube wall; Secondly, what ensure that sealing configuration can not be leading to the outlet pipe of air in the process moved back and forth opens empty calorie, plays buffer function.All the other structures are identical with embodiment 4 with advantage.
embodiment 6:
Described urea filler pipe 28 is connected with urea box housing 8 by urea box filler pipe joint 29.All the other structures are identical with embodiment 4 with advantage.
At least one in technical characteristics described in embodiment 2,3 and embodiment 1 can also be combined to form new technological scheme by the present invention.
At least one in technical characteristics described in embodiment 5,6 and embodiment 4 can also be combined to form new technological scheme by the present invention.
It should be noted that above-described embodiment, is only preferred embodiment of the present invention, is not used for limiting protection scope of the present invention, and equivalents done on the basis of technique scheme all belongs to protection scope of the present invention.
Claims (1)
1. urea box filling mouth of pipe ammonia concentration control device, described control gear is arranged on urea casing, it is characterized in that, described control gear comprises at least one urea filling exhaust pipe, and is used for regulating the control unit of ammonia concentration, described control unit comprises control valve and at least two urea filling exhaust pipes, described control valve comprises pressure retaining valve and unidirectional spring valve, wherein pressure retaining valve is arranged between two adjacent urea filling exhaust pipes, unidirectional spring valve is arranged between urea filling exhaust pipe and the urea filling exhaust pipe adjacent with this urea filling exhaust pipe, described urea filling exhaust pipe comprises the inlet control valve and the filling mouth of pipe that control urea filling, described urea filling exhaust pipe comprises the exhaust fitting that is arranged at outlet pipe top and is arranged at the filling exhaust valve that exhaust pipe lower part is connected with urea box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210346730.8A CN102865127B (en) | 2012-09-19 | 2012-09-19 | Urea box filling mouth of pipe ammonia concentration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210346730.8A CN102865127B (en) | 2012-09-19 | 2012-09-19 | Urea box filling mouth of pipe ammonia concentration control device |
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| Publication Number | Publication Date |
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| CN102865127A CN102865127A (en) | 2013-01-09 |
| CN102865127B true CN102865127B (en) | 2015-11-18 |
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| CN201210346730.8A Active CN102865127B (en) | 2012-09-19 | 2012-09-19 | Urea box filling mouth of pipe ammonia concentration control device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101610464B1 (en) * | 2014-04-11 | 2016-04-07 | 현대자동차주식회사 | Seperator for fluid separation and SCR urea solution infusion system using the same |
| CN105621338A (en) * | 2015-12-25 | 2016-06-01 | 潍柴动力股份有限公司 | Urea filling system and vehicle |
| CN108915828A (en) * | 2018-08-13 | 2018-11-30 | 亚普汽车部件股份有限公司 | A kind of aerating system of solution storage box |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610284A (en) * | 1984-11-06 | 1986-09-09 | Proprietary Technology | Automotive fuel filler system |
| US4706708A (en) * | 1986-06-23 | 1987-11-17 | General Motors Corporation | Fuel tank venting |
| CN1186477A (en) * | 1995-05-31 | 1998-07-01 | 卡尔·登比 | Refilling liquid storage tanks |
| US5983963A (en) * | 1997-06-06 | 1999-11-16 | Tesma Motoren-Und Getriebetechnik Gmbh | On-board refueling vapor recovery system with fuel inlet stub venting |
| US6318423B1 (en) * | 1998-10-15 | 2001-11-20 | Mannesmann Vdo Ag | Plug neck for a filler neck of a fuel tank |
| CN1403323A (en) * | 2001-08-21 | 2003-03-19 | 本田技研工业株式会社 | Vehicle mounted supplying fuel steam cycling system and its fuel steam pass |
| CN201696192U (en) * | 2010-05-18 | 2011-01-05 | 中国石油集团东方地球物理公司东部勘探事业部长庆物探处装备管理服务中心 | Air exhaust valve |
| CN102203404A (en) * | 2008-10-24 | 2011-09-28 | 费德罗-莫格尔公司 | Vapor vent control apparatus, system and outboard marine engine therewith |
| CN202851120U (en) * | 2012-09-19 | 2013-04-03 | 亚普汽车部件股份有限公司 | Control device for ammonia concentration of urea tank filling nozzle |
-
2012
- 2012-09-19 CN CN201210346730.8A patent/CN102865127B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610284A (en) * | 1984-11-06 | 1986-09-09 | Proprietary Technology | Automotive fuel filler system |
| US4706708A (en) * | 1986-06-23 | 1987-11-17 | General Motors Corporation | Fuel tank venting |
| CN1186477A (en) * | 1995-05-31 | 1998-07-01 | 卡尔·登比 | Refilling liquid storage tanks |
| US5983963A (en) * | 1997-06-06 | 1999-11-16 | Tesma Motoren-Und Getriebetechnik Gmbh | On-board refueling vapor recovery system with fuel inlet stub venting |
| US6318423B1 (en) * | 1998-10-15 | 2001-11-20 | Mannesmann Vdo Ag | Plug neck for a filler neck of a fuel tank |
| CN1403323A (en) * | 2001-08-21 | 2003-03-19 | 本田技研工业株式会社 | Vehicle mounted supplying fuel steam cycling system and its fuel steam pass |
| CN102203404A (en) * | 2008-10-24 | 2011-09-28 | 费德罗-莫格尔公司 | Vapor vent control apparatus, system and outboard marine engine therewith |
| CN201696192U (en) * | 2010-05-18 | 2011-01-05 | 中国石油集团东方地球物理公司东部勘探事业部长庆物探处装备管理服务中心 | Air exhaust valve |
| CN202851120U (en) * | 2012-09-19 | 2013-04-03 | 亚普汽车部件股份有限公司 | Control device for ammonia concentration of urea tank filling nozzle |
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| CN102865127A (en) | 2013-01-09 |
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