CN206867831U - A kind of aqueous solution of urea filter with freeze proof defencive function - Google Patents
A kind of aqueous solution of urea filter with freeze proof defencive function Download PDFInfo
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- CN206867831U CN206867831U CN201720188448.XU CN201720188448U CN206867831U CN 206867831 U CN206867831 U CN 206867831U CN 201720188448 U CN201720188448 U CN 201720188448U CN 206867831 U CN206867831 U CN 206867831U
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- rubber sleeve
- elastic rubber
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- housing
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Abstract
It the utility model is related to a kind of aqueous solution of urea filter with freeze proof defencive function.The outer end cap being engaged including housing and with housing, the filter core being welded by upper end cover, bottom end cover and filter material is provided with housing, elastic rubber sleeve is provided with filter core, elastic rubber sleeve is one end sealing, the hollow type gum cover of open at one end, the opening end of the elastic rubber sleeve be overhung at that upper end cover is outer and the opening end with outer end cap is closed is connected, gap is left between the outer wall and upper end cover of elastic rubber sleeve, outer end cap is provided with the vent valve with being connected inside elastic rubber sleeve, elastic rubber sleeve is communicated by vent valve with the external world, and housing is provided with entrance and exit.As shown from the above technical solution, the utility model inside filter core by setting freeze proof element --- the elastic rubber sleeve of a hollow structure, when the icing of urea solution in filter chamber, can provide the compensation to the expansion of filter medium volume using the deformation of elastic rubber sleeve；Meanwhile the filter core of the filter is convenient to mount and dismount.
Description
Technical field
It the utility model is related to a kind of aqueous solution of urea filter with freeze proof defencive function.
Background technology
As country is to the engine emission mandatory rules of law plus tight, the exhaust emissions level of diesel engine is proposed higher
Requirement, at home the diesel engine for automobile of market sale be constantly updated the replacement, be equipped with selective catalytic reduction reaction mode
Exhaust emissions processing system, obtained domestic production manufacturer and widely used.SCR(Selective Catalytic
Reduction) most important element is to add blue agent, i.e. aqueous solution of urea in Chemoselective reduction system.SCR system works
When, urea liquid sprays into exhaust pipe by nozzle.In order to prevent nozzle blockage, urea liquid has to pass through filtering, except impurity elimination
Matter.
It is well known that the purpose of aqueous solution of urea cleaner is the impurity in filter urea solution, but aqueous solution of urea is present
Crystalline polamer, when environment temperature can freeze less than -10 DEG C, ice-formation expansion is now not only influenceing SCR system just 8% or so
Often work, and freezing and expansion causes to damage to component structure.
Utility model content
The purpose of this utility model is to provide a kind of aqueous solution of urea filter with freeze proof defencive function, the mistake
Filter device carries freeze proof defencive function, can protective housing and filter core will not be swollen because of urea hydrops icing volume at low ambient temperatures
It is swollen and damage, while the filter is convenient to mount and dismount.
To achieve the above object, the utility model employs following technical scheme：It is engaged including housing and with housing
Outer end cap, the filter core being welded by upper end cover, bottom end cover and filter material is provided with described housing, is provided with described filter core
Elastic rubber sleeve, described elastic rubber sleeve are one end sealing, the hollow type gum cover of open at one end, and the opening end of the elastic rubber sleeve overhangs
In outside upper end cover and the opening end with outer end cap is closed is connected, leave gap between the outer wall and upper end cover of the elastic rubber sleeve,
Described outer end cap is provided with the vent valve with being connected inside elastic rubber sleeve, and elastic rubber sleeve is communicated by vent valve with the external world, institute
The housing stated is provided with entrance and exit, and the position of the entrance and exit is respectively positioned at the bottom of upper end cover and upper position.
The bottom of the outer end cap is provided with the tube-like interface that is engaged with elastic rubber sleeve, the inside of the outer end cap be provided with
The step-like interface that vent valve is engaged, described tube-like interface and step-like orifice.
Described elastic rubber sleeve is set on the tube-like interface of outer end cap, and is connected by pipe clamp, and described is ventilative
Valve is fastened in step-like interface, and the 3rd O-ring seal of both sealings is provided between vent valve and step-like interface.
The cross sectional shape of the elastic rubber sleeve is U-shaped, and the material that described elastic rubber sleeve is corroded by resistant to urea is made.
Described outer end cap and upper end cover are formed close by the first O-ring seal and the second O-ring seal with housing respectively
Envelope, and enclosure interior is separated into stoste area and clear area, described entrance is arranged on stoste area, and described outlet is arranged on dry
Net area.
Formed and be threadedly coupled between described housing and outer end cap, formation activity connection between described upper end cover and outer end cap
Connect, circumferentially uniform intervals are disposed with buckle for the upper surface of the upper end cover, and described outer end cap is provided with and is engaged with buckle
Neck.
The upper table of the outer end cap is provided with the groove of rotation easy to operation downwards.
Described vent valve is the valve body with microporous breathable film.
Described entrance is arranged on the bottom of housing, and described outlet is arranged on the middle and upper part of housing.
As shown from the above technical solution, the utility model inside filter core by setting the freeze proof member of a hollow structure
Part --- elastic rubber sleeve, and be equipped with vent valve and ensure sealing and dustproof so that elastic rubber sleeve can communicate with external environment, serve as
During icing of urea solution in filter chamber, the compensation to the expansion of filter medium volume can be provided using the deformation of elastic rubber sleeve；Together
When, filter core and the outer end cap of the filter are actively coupled so that the assembly and disassembly of filter core are more convenient.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model outer end cap；
Fig. 3 is the top view of the utility model upper end cover；
Fig. 4 is the structural representation of the utility model upper end cover.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：
A kind of aqueous solution of urea filter with freeze proof defencive function as shown in Figure 1, including housing 1 and and shell
The outer end cap 2 that body 1 is engaged, housing 1 is interior to be provided with the filter core being welded by upper end cover 31, bottom end cover 32 and filter material 33, filter core
Interior to be provided with elastic rubber sleeve 4, elastic rubber sleeve 4 is freeze proof element, and elastic rubber sleeve 4 seals for one end, the hollow type gum cover of open at one end,
The opening end of the elastic rubber sleeve 4 be overhung at that upper end cover 31 is outer and the opening end with outer end cap 2 is closed is connected, elastic rubber sleeve 4 outside
Gap is left between wall and upper end cover 31, outer end cap 2 is provided with the vent valve 5 connected with the inside of elastic rubber sleeve 4, elastic rubber sleeve 4
Communicated by vent valve 5 with the external world, housing 1 is provided with entrance 11 and outlet 12, and entrance 11 and the position of outlet 12 are located at respectively
The bottom of upper end cover 31 and upper position.
Further, as shown in Fig. 2 the bottom of outer end cap 2 is provided with the tube-like interface 21 being engaged with elastic rubber sleeve 4, outside
The inside of end cap 2 is provided with the step-like interface 22 being engaged with vent valve 5, and tube-like interface 21 connects with step-like interface 22.
Further, elastic rubber sleeve 4 is set on the tube-like interface 21 of outer end cap 2, and is connected by pipe clamp 41, pipe
Folder 41 can ensure that the reliability that elastic rubber sleeve 4 is isolated with urea liquid；Vent valve 5 is fastened in step-like interface 22, and ventilative
The 3rd O-ring seal 63 of both sealings is provided between valve 5 and step-like interface 22.
Further, the cross sectional shape of elastic rubber sleeve 4 is U-shaped, and the material that elastic rubber sleeve 4 is corroded by resistant to urea is made,
Preferably EMDM or HNBR.Namely elastic rubber sleeve 4 is the hollow cylindrical tubulose structure with a constant volume, can isolate urine
Plain medium, its opening end to overhang outside upper end cover 31 are connected with outer end cap 2, and it is located at part and urea water inside filter core
Solution isolates to form certain closing space.
Further, outer end cap 2 and upper end cover 31 respectively by the first O-ring seal 61 and the second O-ring seal 62 with
Housing 1 forms sealing, and stoste area A and clear area B will be separated into inside housing 1, and entrance 11 is arranged on stoste area A, outlet 12
Clear area B is arranged on, the filtering of ie in solution is that ecto-entad is filtered, and specifically, solution enters stoste area A by entrance 11
Filter core is entered back into, the clean liquid after filter element filtering flows into clear area B by the gap between elastic rubber sleeve 4 and upper end cover 31,
Again by the outflow of outlet 12.
Further, formed between housing 1 and outer end cap 2 and be threadedly coupled, as shown in Figure 3, Figure 4, upper end cover 31 and outer end
Formed and be actively coupled between lid 2, circumferentially uniform intervals are disposed with buckle 34 for the upper surface of upper end cover 31, and outer end cap 2 is provided with
The neck 23 being engaged with buckle 34.I.e. upper end cover 31 is formed by buckle 34 and outer end cap 2 and is actively coupled, during dismounting, rotation
Filter core can be taken out of from housing 1 by buckle 34 after outer end cap 2, be easy to the installation and replacing of filter core.Outer end cap passes through interface
Design elastic rubber sleeve 4, vent valve 5 and filter core can be coupled to form an entirety, then peace is coupled with housing 1 by screw thread
Dress.
Further, the upper table of outer end cap 2 is provided with the groove 24 of rotation easy to operation downwards.Operating personnel pass through groove
24 setting can easily rotate outer end cap, to realize its separation with housing 1.
Further, vent valve 5 is the valve body with microporous breathable film, can play waterproof and dustproof, ventilative effect,
Introduced contaminants can also be avoided to enter inside elastic rubber sleeve.
Further, entrance 11 is arranged on the bottom of housing 1, and outlet 12 is arranged on the middle and upper part of housing 1.
The utility model in filter core by setting this freeze proof element of elastic rubber sleeve so that the filter can be applied
In -40 DEG C~120 DEG C of environment.When environment temperature is less than -10 DEG C, aqueous solution of urea, which freezes, makes elastic rubber sleeve be squeezed change
Shape, now, air can be discharged via vent valve, so as to play the volume needed for compensation icing of urea solution expansion.During dismounting, lead to
Rotation outer end cap is crossed, filter core can then be drawn out housing by buckle, and it is convenient to change.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are to this
The various modifications and improvement that the technical scheme of utility model is made, the protection of the utility model claims book determination all should be fallen into
In the range of.
Claims (9)
- A kind of 1. aqueous solution of urea filter with freeze proof defencive function, it is characterised in that：Including housing（1）And and shell Body（1）The outer end cap being engaged（2）, described housing（1）It is interior to be provided with by upper end cover（31）, bottom end cover（32）And filter material（33）Weldering The filter core connect, described filter core is interior to be provided with elastic rubber sleeve（4）, described elastic rubber sleeve（4）For one end sealing, open at one end Hollow type gum cover, the elastic rubber sleeve（4）Opening end be overhung at upper end cover（31）Outer and the opening end and outer end cap（2）It is closed It is connected, the elastic rubber sleeve（4）Outer wall and upper end cover（31）Between leave gap, described outer end cap（2）It is provided with and bullet Property gum cover（4）The vent valve of inside connection（5）, elastic rubber sleeve（4）Pass through vent valve（5）Communicated with the external world, described housing（1） It is provided with entrance（11）And outlet（12）, the entrance（11）And outlet（12）Position be located at upper end cover respectively（31）Bottom And upper position.
- 2. the aqueous solution of urea filter according to claim 1 with freeze proof defencive function, it is characterised in that：It is described Outer end cap（2）Bottom be provided with and elastic rubber sleeve（4）The tube-like interface being engaged（21）, the outer end cap（2）Inside be provided with With vent valve（5）The step-like interface being engaged（22）, described tube-like interface（21）With step-like interface（22）Connection.
- 3. the aqueous solution of urea filter according to claim 2 with freeze proof defencive function, it is characterised in that：It is described Elastic rubber sleeve（4）It is set in outer end cap（2）Tube-like interface（21）On, and pass through pipe clamp（41）It is connected, described is saturating Air valve（5）It is fastened on step-like interface（22）It is interior, and vent valve（5）With step-like interface（22）Between be provided with sealing both the Three O-ring seals（63）.
- 4. the aqueous solution of urea filter with freeze proof defencive function according to claim 1 or 2 or 3, its feature exist In：The elastic rubber sleeve（4）The U-shaped and described elastic rubber sleeve of cross sectional shape（4）The material corroded by resistant to urea is made.
- 5. the aqueous solution of urea filter according to claim 1 with freeze proof defencive function, it is characterised in that：It is described Outer end cap（2）And upper end cover（31）Pass through the first O-ring seal respectively（61）And second O-ring seal（62）With housing（1） Sealing is formed, and by housing（1）Inside is separated into stoste area and clear area, described entrance（11）Stoste area is arranged on, it is described Outlet（12）It is arranged on clear area.
- 6. the aqueous solution of urea filter according to claim 1 with freeze proof defencive function, it is characterised in that：It is described Housing（1）With outer end cap（2）Between formed threaded connection, described upper end cover（31）With outer end cap（2）Between formation activity Connection, the upper end cover（31）Circumferentially uniform intervals are disposed with buckle for upper surface（34）, described outer end cap（2）It is provided with With buckle（34）The neck being engaged（23）.
- 7. the aqueous solution of urea filter according to claim 1 with freeze proof defencive function, it is characterised in that：It is described Outer end cap（2）Upper table downwards be provided with rotation easy to operation groove（24）.
- 8. the aqueous solution of urea filter according to claim 1 with freeze proof defencive function, it is characterised in that：It is described Vent valve（5）For the valve body with microporous breathable film.
- 9. the aqueous solution of urea filter of freeze proof defencive function is carried according to claim 1 or 5, it is characterised in that： Described entrance（11）It is arranged on housing（1）Bottom, described outlet（12）It is arranged on housing（1）Middle and upper part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188448.XU CN206867831U (en) | 2017-02-28 | 2017-02-28 | A kind of aqueous solution of urea filter with freeze proof defencive function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188448.XU CN206867831U (en) | 2017-02-28 | 2017-02-28 | A kind of aqueous solution of urea filter with freeze proof defencive function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206867831U true CN206867831U (en) | 2018-01-12 |
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ID=61326869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720188448.XU Active CN206867831U (en) | 2017-02-28 | 2017-02-28 | A kind of aqueous solution of urea filter with freeze proof defencive function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206867831U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252016A (en) * | 2019-05-27 | 2019-09-20 | 宁波中车时代电气设备有限公司 | A kind of cross-flow device |
| CN110302581A (en) * | 2019-07-26 | 2019-10-08 | 潍坊派克汉尼汾过滤系统有限公司 | A kind of urea filter |
| CN110433562A (en) * | 2019-09-04 | 2019-11-12 | 合肥威尔燃油系统股份有限公司 | A kind of urea filter with cooling water heating |
| CN110548326A (en) * | 2018-05-30 | 2019-12-10 | 杜玮 | Filtering device for urea metering pump and urea metering pump |
| CN111699030A (en) * | 2018-02-15 | 2020-09-22 | 康明斯排放处理公司 | Filter assembly for an aftertreatment system of an internal combustion engine |
| DE102020204098A1 (en) | 2020-03-30 | 2021-09-30 | Robert Bosch Gesellschaft mit beschränkter Haftung | Filter insert and liquid filter with such a filter insert |
| DE102020204099A1 (en) | 2020-03-30 | 2021-09-30 | Robert Bosch Gesellschaft mit beschränkter Haftung | Volume compensation element for a filter element of a liquid filter and filter element with such a volume compensation element |
| WO2023117909A1 (en) * | 2021-12-20 | 2023-06-29 | Robert Bosch Gmbh | Filter element |
| WO2023118069A1 (en) * | 2021-12-20 | 2023-06-29 | Robert Bosch Gmbh | Liquid filter |
-
2017
- 2017-02-28 CN CN201720188448.XU patent/CN206867831U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111699030A (en) * | 2018-02-15 | 2020-09-22 | 康明斯排放处理公司 | Filter assembly for an aftertreatment system of an internal combustion engine |
| CN110548326A (en) * | 2018-05-30 | 2019-12-10 | 杜玮 | Filtering device for urea metering pump and urea metering pump |
| CN110548326B (en) * | 2018-05-30 | 2021-11-26 | 西安秦泰汽车排放技术有限公司 | Filtering device for urea metering pump and urea metering pump |
| CN110252016A (en) * | 2019-05-27 | 2019-09-20 | 宁波中车时代电气设备有限公司 | A kind of cross-flow device |
| CN110302581A (en) * | 2019-07-26 | 2019-10-08 | 潍坊派克汉尼汾过滤系统有限公司 | A kind of urea filter |
| CN110433562A (en) * | 2019-09-04 | 2019-11-12 | 合肥威尔燃油系统股份有限公司 | A kind of urea filter with cooling water heating |
| DE102020204098A1 (en) | 2020-03-30 | 2021-09-30 | Robert Bosch Gesellschaft mit beschränkter Haftung | Filter insert and liquid filter with such a filter insert |
| DE102020204099A1 (en) | 2020-03-30 | 2021-09-30 | Robert Bosch Gesellschaft mit beschränkter Haftung | Volume compensation element for a filter element of a liquid filter and filter element with such a volume compensation element |
| WO2023117909A1 (en) * | 2021-12-20 | 2023-06-29 | Robert Bosch Gmbh | Filter element |
| WO2023118069A1 (en) * | 2021-12-20 | 2023-06-29 | Robert Bosch Gmbh | Liquid filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 230000 No. 59 Buddha Road, Hefei economic and Technological Development Zone, Anhui Patentee after: Anhui Weil Low Carbon Technology Co., Ltd Address before: 230601 No. 59 Buddha Road, Jing Kai District, Hefei City, Anhui, Hefei Patentee before: Hefei Weir oil-fired system limited company |
|
| CP03 | Change of name, title or address |