CN102698482A - Aqueous urea filter - Google Patents
Aqueous urea filter Download PDFInfo
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- CN102698482A CN102698482A CN2012102094979A CN201210209497A CN102698482A CN 102698482 A CN102698482 A CN 102698482A CN 2012102094979 A CN2012102094979 A CN 2012102094979A CN 201210209497 A CN201210209497 A CN 201210209497A CN 102698482 A CN102698482 A CN 102698482A
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- central tube
- conducting strip
- aqueous solution
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- urea
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Abstract
The invention discloses an aqueous urea filter which comprises an upper end cover, a lower end cover and a central pipe arranged between the two end covers, wherein filter paper is arranged on the outer peripheral side of the central pipe. The aqueous urea filter is further provided with a heating structure which is connected with a conducting wire; the heating structure is formed by an inner heat conducting sheet on the inner side of the central pipe, a constant temperature sheet embedded in the central pipe and an outer heat conducting sheet on the outer side of the central pipe, wherein the inner heat conducting sheet, the constant temperature sheet and the outer heat conducting sheet are fitted with one another. According to the aqueous urea filter, in order to ensure that the temperature of the aqueous urea is within reliable working temperature range, a PTC (phenylthiocarbamide) ceramic sheet is embedded into the framework-type central pipe and is heated through an electronic heating sheet, so that the ambient temperature of the aqueous urea filter when working is kept more than 25 DEG C, the flow capacity of the filter is prevented from being influenced due to too low ambient temperature while the filtration efficiency requirement of the aqueous urea is fully satisfied, and the efficiency of a whole tail gas processing system is improved.
Description
Technical field
the present invention relates to a kind of auto parts and components, especially relate to a kind of automobile exhaust gas processing apparatus, are specifically related to a kind of aqueous solution of urea cleaner.
Background technology
In the motor vehicles state IV, the state's V discharge standard that are about to implement; Diesel engine more harsh toxic emission and energy-conservation requirement have been proposed; In order to reach state's IV, state's V discharge standard, can pass through the nitride NO that SCR (Selective Catalytic Reduction Technology SCR) technology reduces engine
X
Discharging.The SCR system comprises urea tank (loading the diesel engine vent gas treatment fluid), SCR catalytic reactor.The running of SCR system is: when in finding blast pipe, nitrogen oxide being arranged; Urea tank sprays the diesel engine vent gas treatment fluid automatically; Redox reaction takes place in diesel engine vent gas treatment fluid and nitrogen oxide in the SCR catalytic reactor, generate free of contamination nitrogen and steam and discharge.In whole SCR exhaust treatment system, diesel engine vent gas treatment fluid (domestic be commonly called as into: automobile urea, automobile-used urea, automobile environment-protection urea) is the running stores that must use in the SCR technology.
in the SCR system to vent gas treatment, urea is the indispensable material of participating in reaction, and very high to the nozzle required precision of aqueous solution of urea being carried out atomized spray.During owing to low temperature, concentration of aqueous solution of urea is high to be prone to crystallization so be difficult for atomized spray, for the cleaning that guarantees aqueous solution of urea reaches best result of use under preference temperature, therefore the urea cleaner is installed.
existing aqueous solution of urea cleaner generally adopts the built-in scheme of pump chamber, mostly adopts the cleaner structure of wound form or the structural design of star-like paper folding in the filter design.But the aqueous solution of urea temperature has reduced the circulation of aqueous solution of urea less than occurring phenomenon such as crystallization after 11 ℃, has increased aqueous solution of urea through the cleaner circulating resistance.
Summary of the invention
technical problem to be solved by this invention is to overcome the defective that aqueous solution of urea in the existing urea cleaner is prone to crystallization; A kind of embedded aqueous solution of urea cleaner structure is provided, the effect of using under the cleaning of assurance aqueous solution of urea and the low temperature condition.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: the aqueous solution of urea cleaner, and comprise upper end cover, bottom end cover, and be located at the central tube between the said two end cap, said central tube periphery is a filter paper,
is characterized in that described urea cleaner also is provided with heating arrangement, and said heating arrangement connects lead.
preferably, said heating arrangement is the outer conducting strip in the embedded constant temperature sheet of inboard interior conducting strip of said central tube or central tube or the central tube outside.
preferably, said heating arrangement is inboard interior conducting strip and the embedded constant temperature sheet of central tube of said central tube, and conducting strip and the applying of said constant temperature sheet in said.
preferably, said heating arrangement is outer conducting strip and the embedded constant temperature sheet of central tube in the said central tube outside, and said outer conducting strip and the applying of said potsherd.
preferably, said heating arrangement is the outer conducting strip in the embedded constant temperature sheet of said central tube inboard interior conducting strip, central tube and the central tube outside, and applying each other between conducting strip, constant temperature sheet and the outer conducting strip in said.
preferably, said constant temperature sheet is a PTC heating ceramic sheet, said in conducting strip, outer conducting strip be sheet metal structure.
preferably, said bottom end cover has groove and cooperates with the boss of pump chamber.
preferably, said filter paper is star folded filter paper.
preferably, said upper end cover is provided with the sealing ring that is used for upper end cover, pump chamber combination seal.
Advantage of the present invention is:
aqueous solution of urea cleaner 1. of the present invention for the temperature that guarantees aqueous solution of urea in the reliable work temperature; On skeleton central tube, embedded PTC heating ceramic sheet; Through the heating of electrons heat sheet, make the environment temperature of aqueous solution of urea cleaner work remain on more than 25 ℃.When the filter efficiency that satisfies aqueous solution of urea fully requires, avoided making whole exhaust treatment system efficient increase because environment temperature is crossed the low through-current capability that influences cleaner.
have been adopted star-like paper folding mode, and have been adopted skeleton central tube in order to guarantee enough circulation areas of aqueous solution of urea, have increased filter area.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 is aqueous solution of urea cleaner one structural representation of the present invention;
Fig. 2 is the center tube structure sketch map of aqueous solution of urea cleaner of the present invention.
Fig. 3 is the A-A profile of Fig. 2.
wherein: 1 is sealing ring, and 2 is upper end cover, and 3 is outer conducting strip, and 4 is central tube; 5 is filter paper, and 6 is the heating ceramic sheet, and 7 is interior conducting strip, and 8 is bonded adhesives; 9 is bottom end cover, and 10 for embedding the groove of PTC potsherd, and 11 is through-flow mouthful of aqueous solution of urea.
The specific embodiment
Embodiment:
One preferred embodiment of
aqueous solution of urea cleaner of the present invention as shown in Figure 1; Comprise upper end cover 2, bottom end cover 9; And be located at the central tube 4 between the said two end cap; Said central tube periphery is a filter paper 5, and described urea cleaner also is provided with heating arrangement, and said heating arrangement connects lead; Wherein, heating arrangement is the outer conducting strip 3 in the embedded heating ceramic sheet 6 of central tube inboard interior conducting strip 7, central tube and the central tube outside, and fits each other between conducting strip 7, heating ceramic sheet 6 and the outer conducting strip 7 in said, and draw through lead the bottom.
The one preferred center tubular construction embodiment of
urea cleaner of the present invention as shown in Figure 2, Fig. 3 is the A-A sectional view of Fig. 2.Central tube 4 is skeleton mechanism, which is provided with the groove 10 that can embed 4 PTC heating ceramic sheets.Embed heating potsherd 6 during central tube 4 urea liquids are through-flow mouthful; Outer conducting strip 3 is a thin slice rectangle structure aluminium with interior conducting strip 7, fits with potsherd and joins, and outer conducting strip is connected with positive source; Interior conducting strip picks out with lead, is connected with the negative pole of power supply.
central tube 4 is used to support filter medium, adopts the embedded heating plate of plastic tube 7, PTC heating ceramic sheet 6 structures, through powering up, surrounding enviroment is heated.Through selection to the Curie temperature of PTC, the maximum temperature of PTC heating plate is set in 25 ℃, guaranteed the operating ambient temperature of aqueous solution of urea cleaner.When engine operation, power supply powers up, and inside and outside conducting strip and the conducting of heating ceramic sheet guarantee that the operating temperature of aqueous solution of urea is not less than 25 ℃, prevent that physical phenomenons such as crystallization from can appear in aqueous solution of urea, influences the efficient of whole exhaust treatment system.
filter paper mainly is to filter aqueous solution of urea, and star structure behind the filter material employing folded filter paper increases filter area.Upper end cover 2 has O type circle sealing ring 1, is used for and upper end cover, pump chamber combination seal.Upper end cover 2 has position-limiting action in pump chamber; The groove of bottom end cover 9 has position-limiting action.
are certain, and the foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let people can understand content of the present invention and implements according to this, can not limit protection scope of the present invention with this.The all spirit of main technical schemes is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (9)
1. the aqueous solution of urea cleaner comprises upper end cover, bottom end cover, and is located at the central tube between the said two end cap, and said central tube periphery is a filter paper, it is characterized in that, described urea cleaner also is provided with heating arrangement, and said heating arrangement connects lead.
2. aqueous solution of urea cleaner according to claim 1 is characterized in that, said heating arrangement is the outer conducting strip in the embedded constant temperature sheet of inboard interior conducting strip of said central tube or central tube or the central tube outside.
3. aqueous solution of urea cleaner according to claim 1 is characterized in that, said heating arrangement is inboard interior conducting strip and the embedded constant temperature sheet of central tube of said central tube, and conducting strip and the applying of said constant temperature sheet in said.
4. according to claim 1 described aqueous solution of urea cleaner, it is characterized in that said heating arrangement is the outer conducting strip and the embedded constant temperature sheet of central tube in the said central tube outside, and said outer conducting strip and the applying of said potsherd.
5. aqueous solution of urea cleaner according to claim 1; It is characterized in that; Said heating arrangement is the outer conducting strip in the embedded constant temperature sheet of said central tube inboard interior conducting strip, central tube and the central tube outside, and fits each other between conducting strip, constant temperature sheet and the outer conducting strip in said.
6. according to each described aqueous solution of urea cleaner of claim 2-5, it is characterized in that said constant temperature sheet is a PTC heating ceramic sheet, said interior conducting strip, outer conducting strip are sheet metal structure.
7. aqueous solution of urea cleaner according to claim 1 is characterized in that, said bottom end cover has groove and cooperates with the boss of pump chamber.
8. aqueous solution of urea cleaner according to claim 1 is characterized in that, said filter paper is star folded filter paper.
9. aqueous solution of urea cleaner according to claim 1 is characterized in that, said upper end cover is provided with the sealing ring that is used for upper end cover, pump chamber combination seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210209497.9A CN102698482B (en) | 2012-06-25 | 2012-06-25 | Aqueous urea filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210209497.9A CN102698482B (en) | 2012-06-25 | 2012-06-25 | Aqueous urea filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102698482A true CN102698482A (en) | 2012-10-03 |
| CN102698482B CN102698482B (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210209497.9A Active CN102698482B (en) | 2012-06-25 | 2012-06-25 | Aqueous urea filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102698482B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2020103686A1 (en) * | 2018-11-20 | 2020-05-28 | 苏州科瓴精密机械科技有限公司 | Air filter, gasoline engine and gardening tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1036930A1 (en) * | 1999-03-18 | 2000-09-20 | David + Baader DBK Spezialfabrik Elektrischer Apparate und Heizwiderstände GmbH | Heating device for diesel fuel and heated diesel fuel filter system |
| CN101024132A (en) * | 2007-01-06 | 2007-08-29 | 奥凯嘉集团有限公司 | Filter core |
| CN102493897A (en) * | 2011-12-05 | 2012-06-13 | 高志男 | Heating device in fuel filter of diesel vehicle |
| CN102536397A (en) * | 2012-02-24 | 2012-07-04 | 扬州宇丰环保科技有限公司 | Urea supply device for vehicular SCR (selective catalytic reduction) system |
| CN202654775U (en) * | 2012-06-25 | 2013-01-09 | 苏州工业园区达菲特过滤技术有限公司 | Urea water solution filter |
-
2012
- 2012-06-25 CN CN201210209497.9A patent/CN102698482B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1036930A1 (en) * | 1999-03-18 | 2000-09-20 | David + Baader DBK Spezialfabrik Elektrischer Apparate und Heizwiderstände GmbH | Heating device for diesel fuel and heated diesel fuel filter system |
| CN101024132A (en) * | 2007-01-06 | 2007-08-29 | 奥凯嘉集团有限公司 | Filter core |
| CN102493897A (en) * | 2011-12-05 | 2012-06-13 | 高志男 | Heating device in fuel filter of diesel vehicle |
| CN102536397A (en) * | 2012-02-24 | 2012-07-04 | 扬州宇丰环保科技有限公司 | Urea supply device for vehicular SCR (selective catalytic reduction) system |
| CN202654775U (en) * | 2012-06-25 | 2013-01-09 | 苏州工业园区达菲特过滤技术有限公司 | Urea water solution filter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020103686A1 (en) * | 2018-11-20 | 2020-05-28 | 苏州科瓴精密机械科技有限公司 | Air filter, gasoline engine and gardening tool |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102698482B (en) | 2014-12-24 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU DIFITE (SIP) CO., LTD. Free format text: FORMER NAME: SUZHOU INDUSTRIAL PARK, DIFITE CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 215123, No. 22, Sheng Sheng Road, Sheng Town, Suzhou Industrial Park, Jiangsu Patentee after: Suzhou Duffett Filtration Technology Co.,Ltd. Address before: 22 No. 215126 Sheng Road, Suzhou Industrial Park, Jiangsu, China Patentee before: Suzhou Industrial Park Duffett Filtration Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201028 Address after: 223900 north of Ningzhong road and west of jingsan Road, Sihong Economic Development Zone, Sihong County, Suqian City, Jiangsu Province Patentee after: Jiangsu dafiter Technology Co.,Ltd. Address before: 215123, No. 22, Sheng Sheng Road, Sheng Town, Suzhou Industrial Park, Jiangsu Patentee before: Suzhou Duffett Filtration Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230830 Address after: No. 22, Tongsheng Road, Shengpu Town, Suzhou Industrial Park, Jiangsu Province, 215000 Patentee after: Suzhou Duffett Filtration Technology Co.,Ltd. Address before: 223900 north side of Ningzhong Road, west side of jingsan Road, machinery manufacturing industrial park, Sihong Economic Development Zone, Sihong County, Suqian City, Jiangsu Province Patentee before: Jiangsu dafiter Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |