CN201835896U - Urea liquid level sensor - Google Patents
Urea liquid level sensor Download PDFInfo
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- CN201835896U CN201835896U CN2010205972810U CN201020597281U CN201835896U CN 201835896 U CN201835896 U CN 201835896U CN 2010205972810 U CN2010205972810 U CN 2010205972810U CN 201020597281 U CN201020597281 U CN 201020597281U CN 201835896 U CN201835896 U CN 201835896U
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- level sensor
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- heating pipe
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Abstract
The utility model provides a urea liquid level sensor which comprises an information pipe (1) and a heating pipe (2), wherein the heating pipe (2) is provided with a spiral part (21) formed around the information pipe (1). As the spiral part (21) of the heating pipe (2) has a large radiating area, more heat can be transmitted into urea solution in unit time; therefore, the urea liquid level sensor can quickly thawing the frozen urea solution.
Description
Technical field
The utility model relates to sensor field, particularly, relates to a kind of urea level sensor.
Background technique
The continuous upgrading of the automobile exhaust emission standard of China for diesel engine, only relies on the improvement of motor can't satisfy the requirement of emission standard.
For this reason, each big manufacturers of engines just is being devoted to develop exhaust treatment system reducing the content of pollutant in the tail gas, and selective catalytic reduction (SCR) system is exactly wherein a kind of.Urea liquid is sprayed in the SCR system in containing the tail gas of nitrogen oxide, make the nitrogen oxide in the tail gas be reduced into the nitrogen G﹠W.Because urea liquid (as subzero 11 ℃) in low temperature environment can freeze and solidify, and therefore, before using urea liquid, needs heating urea solution to make its thawing.At present, normally used method is that the U-shaped heating pipe is installed on the urea level sensor, reaches the purpose of melting the urea liquid that freezes by heat exchange.But, U-shaped pipe heat diffusion area is less, and required time of the solution that thaws is longer.So the urea liquid how quick-thawing freezes has become problem demanding prompt solution in the SCR system.
Therefore need a kind of urea level sensor, this urea level sensor can the icing urea liquid of quick-thawing.
The model utility content
The utility model provides a kind of urea level sensor, and this urea level sensor can the icing urea liquid of quick-thawing.
For achieving the above object, the utility model provides a kind of urea level sensor, and this urea level sensor comprises message tube and heating pipe, and wherein, described heating pipe has the spiral part that forms around message tube.
Preferably, described spiral part is centered around the lower disposed of described message tube.
Preferably, the height of described spiral part be described urea level sensor overall height 1/4～1/2.
Pass through technique scheme, because the spiral part of heating pipe has bigger heat diffusion area, more heat can be delivered in the urea liquid in the unit time, therefore, urea level sensor provided by the utility model can the icing urea liquid of quick-thawing.
Other technical characteristics of the present utility model and beneficial effect will partly be described in detail in embodiment.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with following embodiment one, but does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of urea level sensor provided by the utility model.
Description of reference numerals
1 message tube, 2 heating pipes
21 spiral parts
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
As shown in Figure 1, the utility model provides a kind of urea level sensor, and this urea level sensor comprises message tube 1 and heating pipe 2, and wherein, described heating pipe 2 has the spiral part 21 that forms around message tube 1.
Pass through technique scheme, because the spiral part 21 of heating pipe 2 has bigger heat diffusion area, more heat can be delivered in the urea liquid in the unit time, therefore, urea level sensor provided by the utility model can the icing urea liquid of quick-thawing.
Described heating pipe 2 is used for and will flows through the heat transfer of high-temperature-hot-water wherein to the urea liquid that freezes, with the icing urea liquid that thaws.Therefore, described heating pipe 2 should be selected the material of the big and anti-urea corrosion of pyroconductivity for use, as the Austenitic Stainless Steel of nitrogenous, manganese, molybdenum or the two phase stainless steel of modification.Certainly, also can select the material of other kind for use.
The spiral part 21 of described heating pipe 2 can be centered around described 1 arbitrary position layout, 1 top, middle part or bottom as described.Preferably, described spiral part 21 is centered around the lower disposed of described message tube 1.Such heating pipe is convenient to manufacturing, and this structure can be so that described heating pipe has better heating effect simultaneously.
For heat is delivered in the urea liquid as much as possible, should in reasonable range, increase the height of described spiral part 21 as much as possible.Preferably, the height of described spiral part 21 be described urea level sensor overall height 1/4～1/2.
Below describe preferred implementation of the present utility model in conjunction with the accompanying drawings in detail; but; the utility model is not limited to the detail in the above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Claims (3)
1. a urea level sensor comprises message tube (1) and heating pipe (2), it is characterized in that, described heating pipe (2) has the spiral part (21) that forms around message tube (1).
2. urea level sensor according to claim 1 is characterized in that, described spiral part (21) is centered around the lower disposed of described message tube (1).
3. urea level sensor according to claim 1 is characterized in that, the height of described spiral part (21) be described urea level sensor overall height 1/4～1/2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205972810U CN201835896U (en) | 2010-11-04 | 2010-11-04 | Urea liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205972810U CN201835896U (en) | 2010-11-04 | 2010-11-04 | Urea liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201835896U true CN201835896U (en) | 2011-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205972810U Expired - Lifetime CN201835896U (en) | 2010-11-04 | 2010-11-04 | Urea liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201835896U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297004A (en) * | 2011-08-31 | 2011-12-28 | 宁波恒富汽车部件发展有限公司 | Automobile urea tank |
| CN104204436A (en) * | 2012-03-02 | 2014-12-10 | 排放技术有限公司 | Feed unit for a liquid additive for post-treating exhaust gas |
| WO2017152422A1 (en) * | 2016-03-11 | 2017-09-14 | 东莞正扬电子机械有限公司 | Heat-conduction-type concentration detection mechanism and urea-box liquid level sensor |
| CN116412018A (en) * | 2022-01-05 | 2023-07-11 | 北汽福田汽车股份有限公司 | Liquid concentration sensor assembly, vehicle urea box and vehicle |
-
2010
- 2010-11-04 CN CN2010205972810U patent/CN201835896U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297004A (en) * | 2011-08-31 | 2011-12-28 | 宁波恒富汽车部件发展有限公司 | Automobile urea tank |
| CN104204436A (en) * | 2012-03-02 | 2014-12-10 | 排放技术有限公司 | Feed unit for a liquid additive for post-treating exhaust gas |
| WO2017152422A1 (en) * | 2016-03-11 | 2017-09-14 | 东莞正扬电子机械有限公司 | Heat-conduction-type concentration detection mechanism and urea-box liquid level sensor |
| CN116412018A (en) * | 2022-01-05 | 2023-07-11 | 北汽福田汽车股份有限公司 | Liquid concentration sensor assembly, vehicle urea box and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |