CN104373178B - Urea solution tank filling assembly used for SCR system - Google Patents
Urea solution tank filling assembly used for SCR system Download PDFInfo
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- CN104373178B CN104373178B CN201410593910.5A CN201410593910A CN104373178B CN 104373178 B CN104373178 B CN 104373178B CN 201410593910 A CN201410593910 A CN 201410593910A CN 104373178 B CN104373178 B CN 104373178B
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- enclosing cover
- chain
- urea solution
- solution tank
- filler
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Abstract
The invention discloses a urea solution tank filling assembly used for an SCR system. The urea solution tank filling assembly comprises a tank cover and a filling opening, the filling opening is formed in a urea solution tank, and a chain is connected between the filling opening and the tank cover. The tank cover comprises an upper outer cover body and a lower outer cover body, a ventilation cavity is formed in the center of the lower outer cover body, a plurality of ventilation holes are formed in the bottom of the ventilation cavity, ventilation film is arranged at the portion, located above the ventilation holes, of the ventilation cavity, a plurality of ventilation grooves are formed in the top of the lower outer cover body, the top of the lower outer cover body is connected with the interior of the upper outer cover body, the bottom of the lower outer cover body is connected with the filling opening, one end of the chain is connected to the top of the upper outer cover body in a rotatable mode, the other end of the chain is connected to the filling opening, and the filling opening is of an integrated structure. The urea solution tank filling assembly is convenient to assemble, and normal rotation of the tank cover can be guaranteed; in addition, expansion, caused by the fact that gas can not be effectively removed, of a tank body can be effectively prevented, and normal running of the system can be guaranteed.
Description
Technical field
The present invention relates to SCR system, more particularly, to a kind of urea solution tank filling assembly for SCR system.
Background technology
Refer to install for selective catalytic conversion system of diesel engine SCR (Selective Catalyst Reduction)
In diesel engine automobile air exhausting system, the NOx in diesel emission is catalysed and reduced into the catalytic reduction device of N2 and O2, selects urine
Plain aqueous solution is as reducing agent.Aqueous solution of urea is ejected in the exhaustor of catalyst upstream, in the work of EGT and air-flow
It is produced as CO2 and ammonia with lower hydrolysis, NOx is reduced into free of contamination nitrogen and water as reducing agent by ammonia.
Urea solution tank is requisite vitals in SCR system, and at present, the carbamide being currently used for SCR system is molten
The following shortcoming of filling assembly generally existing of flow container：
1) it is used for connecting the chain of cover in cover rotary course, be easily wrapped on cover, cause cover cannot continue
Continuous normal rotation；
2) tank interior gas can be led in use cannot to discharge, lead to tank body to expand；
3) filler is formed by multiple parts assemblies, and assembling is loaded down with trivial details.
These above-mentioned shortcomings have had a strong impact on stability and the economy of whole SCR system, become people in the art
Member's problem anxious to be resolved.
Content of the invention
It is an object of the invention to provide a kind of urea solution tank filling assembly for SCR system, it has structure letter
Single, easy to assembly, aerofluxuss are good and cover rotates good feature all the time, to solve to be used for the urine of SCR system in prior art
Plain NaOH solution tank NaOH fills the problems referred to above that assembly exists.
For reaching this purpose, the present invention employs the following technical solutions：
A kind of urea solution tank filling assembly for SCR system, it includes cover and filler, described filler setting
In urea solution tank, between described filler and cover, it is connected with chain, wherein, described cover includes enclosing cover and lower outer
Lid, the center of described lower enclosing cover offers ventilative chamber, and the bottom in described ventilative chamber offers several air-vents, described ventilative
Chamber is provided with ventilated membrane in the top of described air-vent, and the top of described lower enclosing cover offers several ventilating grooves and is connected to
In described upper enclosing cover, its bottom connects described filler, and one end of described chain is rotatably connected at the top of described upper enclosing cover
Portion, the other end is connected on described filler, and described filler includes the filler body of integral type, described filler body
Middle part is outward extended with connecting portion, and described connecting portion offers several connecting holes, and described filler body passes through connecting portion
On connecting hole be fixed in urea solution tank.
Especially, it is provided with locking device between described cover and filler, described locking device includes being arranged at described
The locking teeth at filler top, cooperation locking teeth offer locking bayonet socket on the correspondence position of described upper enclosing cover, and described on
Cover outward and extended downwardly lobe in the bottom of described locking bayonet socket.
Especially, the top of described lower enclosing cover is outward extended with several dops, and cooperation dop is in described upper enclosing cover
Top is provided with several draw-in grooves, and described dop is stuck in described draw-in groove and lower enclosing cover is connected in described upper enclosing cover.
Especially, offer bellmouth at the end face center of described upper enclosing cover, described chain passes through connection sheet and chain bolt
Cover outside being rotatably connected at, described connection sheet is placed on described chain bolt, and described chain is connected in described connection sheet,
The bottom interval of described chain bolt is provided with several snap lock chain claw, and the bottom of described chain pawl is provided with chain dop, institute
State chain bolt and described taper in the hole is connected to by chain dop.
Especially, described lower enclosing cover is connected on described filler body by helicitic texture and sealing ring.
Especially, the bottom of described lower enclosing cover is provided with external screw thread, and the top corresponding to described filler body is provided with
Female thread, described lower outer cover externally threaded bottom sealing ring be installed be connected in the female thread of described filler body.
Especially, the top of described upper enclosing cover upwardly extends the rotating handle being easy to rotate, and described bellmouth is opened in institute
State on rotating handle, and some antislip cogs are arranged at intervals with the side wall of described upper enclosing cover.
Beneficial effects of the present invention are that compared with prior art the described urea solution tank for SCR system fills assembly
There is advantages below：
1) one end of chain is rotatably connected at the top of described upper enclosing cover, when rotating cover, effectively prevents chain
It is wrapped on lid it is ensured that cover normally rotates with lid rotation.
2) under, enclosing cover has additional ventilated membrane, so can effectively arrange the size of Air permenbility and prevent due to gas
Cannot effectively exclude and lead to tank body to expand, the works fine of impact SCR system.
3) filler adopts integral structure, easy to assembly, using reliable and stable.
Brief description
Fig. 1 is the cover that the urea solution tank for SCR system that the specific embodiment of the invention 1 provides fills assembly
Perspective view；
Fig. 2 is the filler that the urea solution tank for SCR system that the specific embodiment of the invention 1 provides fills assembly
Perspective view；
Fig. 3 is the upper enclosing cover that the urea solution tank for SCR system that the specific embodiment of the invention 1 provides fills assembly
Perspective view；
Fig. 4 is the chain bolt that the urea solution tank for SCR system that the specific embodiment of the invention 1 provides fills assembly
Perspective view；
Fig. 5 is the lower enclosing cover that the urea solution tank for SCR system that the specific embodiment of the invention 1 provides fills assembly
Perspective view；
Fig. 6 is that the assembling of the urea solution tank filling assembly for SCR system that the specific embodiment of the invention 1 provides is cutd open
Face figure；
Fig. 7 is the upper enclosing cover that the urea solution tank for SCR system that the specific embodiment of the invention 2 provides fills assembly
Perspective view；
Fig. 8 is the filler that the urea solution tank for SCR system that the specific embodiment of the invention 2 provides fills assembly
Perspective view.
In figure：
1st, cover；10th, upper enclosing cover；101st, rotating handle；102nd, bellmouth；103rd, antislip cog；104th, locking bayonet socket；105、
Lobe；11st, lower enclosing cover；110th, ventilative chamber；111st, air-vent；112nd, ventilated membrane；113rd, ventilating groove；114th, dop；2nd, fill
Mouthful；20th, filler body；21st, connecting portion；22nd, connecting hole；23rd, locking teeth；3rd, chain；4th, connection sheet；5th, chain bolt；50th, lock
Chain claw；51st, chain dop；6th, sealing ring.
Specific embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.
Embodiment one：
Refer to shown in Fig. 1 to Fig. 6, in the present embodiment, a kind of urea solution tank filling assembly for SCR system includes
Cover 1 and filler 2, described cover 1 includes enclosing cover 10 and lower enclosing cover 11, and the center of described lower enclosing cover 11 offers ventilative
Chamber 110, the bottom in described ventilative chamber 110 offers several air-vents 111, and described ventilative chamber 110 is in described air-vent 111
Top is provided with ventilated membrane 112, and the top of described lower enclosing cover 11 offers several ventilating grooves 113 and is connected to described outer
In lid 10, its bottom connects described filler 2, and the top of described lower enclosing cover 11 is outward extended with several dops 114, cooperation card
114 tops in described upper enclosing cover 10 are provided with several draw-in grooves, and described dop 114 is stuck in lower enclosing cover in described draw-in groove
11 are connected in described upper enclosing cover 10.In urea solution tank, in consumption process, pot liquid volume constantly reduces carbamide, for dimension
Hold tank body internal and external pressure balance, the gas having outside enters at the gap of enclosing cover on plastics 10, ventilative within through cover
Film 112 enters in urea solution tank.During urea tank heating, for the gas pressure in compensator, gas in the tank body after heating
Ventilated membrane 112 within from cover enters, and plastics go out at the gap of enclosing cover 10.Can effective compensator external and internal pressure and crystallization-preventive
Phenomenon.
The top of described upper enclosing cover 10 upwardly extends the rotating handle 101 being easy to rotate, and described rotating handle 101 offers
Some antislip cogs 103, described upper enclosing cover 10 and institute are arranged at intervals with bellmouth 102, and the side wall of described upper enclosing cover 10
State and between filler 2, be connected with chain 3, described chain 3 passes through connection sheet 4 and chain bolt 5 is rotatably connected at enclosing cover 10
On, described connection sheet 4 is placed on described chain bolt 5, and described chain 3 is connected in described connection sheet 4, the bottom of described chain bolt 5
Portion is arranged at intervals with several snap lock chain claw 50, and the bottom of described chain pawl 50 is provided with chain dop 51, described chain bolt 5
It is connected in described bellmouth 102 by chain dop 51, during cover rotation, described chain 3 passes through chain bolt 5 and bellmouth
Movable connection between 102, effectively prevents chain 3 from rotating with lid and being wrapped on lid.
Described filler 2 includes the filler body 20 of integral type, and the middle part of described filler body 20 is outward extended with
Connecting portion 21, described connecting portion 21 offers several connecting holes 22, and described filler body 20 passes through on connecting portion 21
Connecting hole 22 is fixed in urea solution tank, and the bottom of described lower enclosing cover 11 is provided with external screw thread, corresponding to described filler originally
The top of body 20 is provided with female thread, and on described lower enclosing cover 11, externally threaded bottom is installed sealing ring 6 and is connected to described filler
In the female thread of body 20, the other end of described chain 3 is connected on described connecting portion 21 by connection sheet.
Embodiment two：
Refer to shown in Fig. 7 and Fig. 8, the present embodiment is with the difference of embodiment one：Described cover 1 and filler 2 it
Between be provided with locking device, described locking device includes being arranged at the locking teeth 23 on the top of described filler body 20, cooperation
Locking teeth 23 offers elongated locking bayonet socket 104 on the correspondence position of described upper enclosing cover 10, and on described upper enclosing cover 10 in
The bottom of described locking bayonet socket 104 has extended downwardly lobe 105, and during locking, described locking teeth 23 is stuck in described locking bayonet socket
In 104, prevent cover 1 from loosening, when uncapping, enclosing cover 10 in rotation, lobe 105 stress deformation on described upper enclosing cover 10, from
And make locking teeth 23 depart from locking bayonet socket 104, realize unblock.
Above example simply elaborates ultimate principle and the characteristic of the present invention, and the present invention is not limited by above-mentioned example,
Without departing from the spirit and scope, the present invention also has various change and change, and these changes and change both fall within
In scope of the claimed invention.Claimed scope is by appending claims and its equivalent thereof.
Claims (7)
1. a kind of urea solution tank filling assembly for SCR system, it includes cover and filler, and described filler is arranged at
In urea solution tank, be connected with chain between described filler and cover it is characterised in that described cover include enclosing cover and under
Enclosing cover, the center of described lower enclosing cover offers ventilative chamber, and the bottom in described ventilative chamber offers several air-vents, described
Air cavity is provided with ventilated membrane in the top of described air-vent, and the top of described lower enclosing cover offers several ventilating grooves and connects
In described upper enclosing cover, its bottom connects described filler, and one end of described chain is rotatably connected at described upper enclosing cover
Top, the other end is connected on described filler, and described filler includes the filler body of integral type, described filler body
Middle part be outward extended with connecting portion, described connecting portion offers several connecting holes, described filler body pass through connect
Connecting hole in portion is fixed in urea solution tank.
2. the urea solution tank filling assembly for SCR system according to claim 1 is it is characterised in that described cover
It is provided with locking device and filler between, described locking device includes being arranged at the locking teeth at described filler top, cooperation
Locking teeth offers locking bayonet socket on the correspondence position of described upper enclosing cover, and described outer covers in the bottom of described locking bayonet socket
Portion has extended downwardly lobe.
3. the urea solution tank filling assembly for SCR system according to claim 1 and 2 is it is characterised in that under described
The top of enclosing cover is outward extended with several dops, and cooperation top in described upper enclosing cover for the dop is provided with several draw-in grooves,
Described dop is stuck in described draw-in groove and lower enclosing cover is connected in described upper enclosing cover.
4. the urea solution tank filling assembly for SCR system according to claim 1 and 2 is it is characterised in that described
Bellmouth is offered, described chain is rotatably connected at upper enclosing cover by connection sheet and chain bolt at the end face center of enclosing cover
On, described connection sheet is placed on described chain bolt, and described chain is connected in described connection sheet, the bottom interval of described chain bolt
It is provided with several snap lock chain claw, the bottom of described chain pawl is provided with chain dop, described chain bolt passes through chain dop
It is connected to described taper in the hole.
5. the urea solution tank filling assembly for SCR system according to claim 1 is it is characterised in that described lower outer
Lid is connected on described filler body by helicitic texture and sealing ring.
6. the urea solution tank filling assembly for SCR system according to claim 5 is it is characterised in that described lower outer
The bottom of lid is provided with external screw thread, and the top corresponding to described filler body is provided with female thread, described lower outer covers outer spiral shell
The bottom of stricture of vagina is installed sealing ring and is connected in the female thread of described filler body.
7. the urea solution tank filling assembly for SCR system according to claim 4 is it is characterised in that described outer
The top of lid upwardly extends the rotating handle being easy to rotate, and described bellmouth is opened on described rotating handle, and described upper enclosing cover
Side wall on be arranged at intervals with some antislip cogs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410593910.5A CN104373178B (en) | 2014-10-29 | 2014-10-29 | Urea solution tank filling assembly used for SCR system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410593910.5A CN104373178B (en) | 2014-10-29 | 2014-10-29 | Urea solution tank filling assembly used for SCR system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373178A CN104373178A (en) | 2015-02-25 |
| CN104373178B true CN104373178B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410593910.5A Active CN104373178B (en) | 2014-10-29 | 2014-10-29 | Urea solution tank filling assembly used for SCR system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090584B (en) * | 2015-08-31 | 2019-02-12 | 凯龙高科技股份有限公司 | A kind of urea solution tank gas permeable devices |
| CN105673160A (en) * | 2016-03-09 | 2016-06-15 | 凯龙高科技股份有限公司 | Urea solution locking tank cover assembly |
| CN109386355B (en) * | 2017-08-14 | 2022-05-24 | 波森公司 | Mixer device and exhaust gas system |
| EP3859129B1 (en) * | 2018-09-29 | 2022-12-21 | Weichai Power Co., Ltd. | Urea tank for scr aftertreatment system, and tank cover thereof |
| CN111140336A (en) * | 2019-12-09 | 2020-05-12 | 河北华北柴油机有限责任公司 | Water drainage blocking and loss preventing device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201896653U (en) * | 2010-11-19 | 2011-07-13 | 东莞正扬电子机械有限公司 | Splash-proof air valve of urea box |
| DE102010061222B4 (en) * | 2010-12-14 | 2015-05-07 | Cummins Ltd. | SCR exhaust treatment device |
| EP2492128B1 (en) * | 2011-02-22 | 2013-08-07 | Inergy Automotive Systems Research (Société Anonyme) | Ammonia precursor storage system including a semi-permeable membrane |
| DE102012108273A1 (en) * | 2012-09-06 | 2014-03-06 | Emitec Denmark A/S | Plastic tank for a working fluid |
| US8998116B2 (en) * | 2012-09-07 | 2015-04-07 | Tenneco Automotive Operating Company Inc. | Reagent injector with crimped pintle |
| CN204225975U (en) * | 2014-10-29 | 2015-03-25 | 凯龙高科技股份有限公司 | A kind of filling of the urea solution tank for SCR system assembly |
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Denomination of invention: Urea solution tank filling assembly for SCR system Effective date of registration: 20210727 Granted publication date: 20170222 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi Xishan branch Pledgor: KAILONG HIGH TECHNOLOGY Co.,Ltd. Registration number: Y2021320010276 |