CN204476525U - Casing liquid level sensor - Google Patents
Casing liquid level sensor Download PDFInfo
- Publication number
- CN204476525U CN204476525U CN201520028789.1U CN201520028789U CN204476525U CN 204476525 U CN204476525 U CN 204476525U CN 201520028789 U CN201520028789 U CN 201520028789U CN 204476525 U CN204476525 U CN 204476525U
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- fixed base
- main body
- base main
- urea
- liquid level
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Abstract
Casing liquid level sensor, comprise fixed base, fixed base is made up of fixed base main body and upper cover, electron tube is had below fixed base main body, the upper end of electron tube is installed in fixed base main body, magnetic floating drum electron tube is equipped with, the fit beneath of fixed base main body have can stretch into urea box inside suction urea tube, return urea tube and hot-water line; Hot-water line is provided with water intake and water outlet, inhale urea tube joint, return urea tube joint, hot-water line be all installed in fixed base main body with water outlet; Fixed base inside is provided with the first heat-conducting plate, and the first heat-conducting plate is placed between fixed base main body and upper cover, and the front of fixed base main body is provided with the second heat-conducting plate.The sensor of the utility model, compact structure, stable performance, product shock resistance is good, and product hermeticity can be good, and easily, cost of goods manufactured is low, accommodative ability of environment is strong in assembling, adapts to extremely cold area surroundings and uses.
Description
Technical field
The utility model relates to casing liquid level sensor, especially relates to a kind ofly being placed on case in-vivo measurement liquid level and with the sensor of heating function.
Background technique
Diesel engine, with the higher thermal efficiency and lower toxic emission, is widely used in the every profession and trade all over the world, but its higher discharged nitrous oxides is a problem of puzzlement people always.Since the nineties in 20th century, along with constantly strict to fuel oil (gas) Engine Exhaust Emission regulation of countries in the world, promote the development of engine technology.China comes into effect state III Abgasgesetz on July 1st, 2008, and on January 1st, 2010 implements state IV Abgasgesetz.In the market competition of fierceness, production firm has to improve motor for emission standard or develop.At present, the technology path realizing state IV emission standard has SCR (urea selective urges reduction treatment), EGR+DPF (exhaust gas recirculation+grain catcher), LNT (nitrogen oxygen desorption device), CRT (cyclic regeneration grain catcher) etc., wherein occupy an leading position with SCR catalytic reduction technique, part large-scale diesel engine producer also have selected this technology path, it utilizes emission controls by improving combustion to reduce soot, then utilizes SCR system to fall the method for low NOX emission.
Commercial aqueous solution of urea (mass fraction is 32.5% ± 0.5%) is called AdBlue, nontoxic, clean, not easily catch fire, without explosion risk, normal temperature (20 DEG C) lower density is 1.09kg/m
3, in alkalescence.Container as aqueous solution of urea is called urea box, and urea box of the prior art is provided with liquid level sensor, utilizes this liquid level sensor by urea liquid sucking-off, can monitor on the other hand to the liquid level of the urea liquid in urea box on the one hand.But the structure being applied to the existing liquid level sensor in urea box is comparatively complicated, substantially identical with the liquid level sensor structure be applied in fuel tank.At present, the structure being applied to the liquid level sensor in urea box includes fixed base, water pipe and electron tube etc., and its fixed base is mostly plastic head fixed base, and plastic head fixed base is not with air duct joint; Plastic head fixed base and heating pipe are connected, but use often makes it rock for a long time, and affect usability, shock resistance is poor; Heating pipe is divided into pipe body and joint two sections, is fixedly connected with between two sections with plastic head, assembling trouble, and manufacture cost is high, and leakage problem is difficult to control; Separately, heating pipe is more tiny, and diameter is 10mm, is fixed by single heat-conducting plate, and heat-transfer rate is comparatively slow, and the easy Crystallization Plugging of urea liquid inhales urea tube and urea joint; Plastic head fixed base is integrated, higher to sealing requirements, and processing procedure controls difficulty, is difficult to carry out later stage after-sales service.
Model utility content
The technical problems to be solved in the utility model is, overcomes the above-mentioned defect that prior art exists, and provides a kind of heat-transfer rate fast, casing liquid level sensor easy to assembly.
The utility model solves the technological scheme that its technical problem adopts:
Casing liquid level sensor, comprise fixed base, fixed base side is provided with the connector for signal transmission, it is characterized in that, described fixed base is made up of fixed base main body and upper cover, has electron tube below fixed base main body, and the upper end of electron tube is installed in fixed base main body, electron tube is equipped with can along the up and down magnetic floating drum of electron tube, the fit beneath of fixed base main body have can stretch into urea box inside suction urea tube, return urea tube and hot-water line; Inhale urea tube head end to be provided with and to inhale urea tube joint, return urea tube head end and be provided with back urea tube joint, hot-water line is provided with water intake and water outlet, inhale urea tube joint, time urea tube joint, hot-water line be all installed in fixed base main body with water outlet; Fixed base inside is provided with the first heat-conducting plate, and the first heat-conducting plate is placed between fixed base main body and upper cover, and the front of fixed base main body is provided with the second heat-conducting plate.
Further, the diameter of described hot-water line is 12.7 mm-16mm, preferably 14.5 mm-15.5 mm, is beneficial to accelerate heat-transfer rate, makes to thaw soon, prevents from inhaling the urea liquid crystallization in urea tube, ensure that the sucking-off of urea liquid is more smooth and easy.
Further, described first heat-conducting plate is formed in one structure.
Further, described fixed base main body is also provided with air duct joint.
Further, described hot-water line is fixed together by spring with suction urea tube.
Further, below described fixed base main body, there is the chassis of installing fixing electron tube, bottom suction urea tube, be provided with the filter screen assembly for fine particle in filter urea solution.
Further, described fixed base main body bottom is provided with the bayonet socket ring gear for fixing urea box casing, and be beneficial to the casing of urea box to be connected with the firm of whole sensor, what make fixed base is connected and fixed structural strengthening, product shock resistance is good, and the strong usability that ensure that product is stablized.
Further, described fixed base main body, upper cover and chassis all can select plastic cement to make.
Further, described fixed base main body is also provided with the screw for fixed fitting.
Further, described hot-water line is formed in one structure, and be beneficial to solve the problem that urea liquid that segmented water pipe brings easily leaks, assembling procedure is simple and easy, and cost of goods manufactured is low.
During use, the bayonet socket ring gear of the sensor of the utility model by fixed base main body bottom is fixed on the casing of urea box.
The sensor of the utility model, compact structure, stable performance, product shock resistance is good, and product hermeticity can be good, and easily, cost of goods manufactured is low, accommodative ability of environment is strong in assembling, adapts to extremely cold area surroundings and uses.In the utility model, hot-water line heat-transfer rate is fast, can not crystalline polamer be there is in urea liquid, after the phenomenon that the solution of urea box freezes under not service condition, can thawing rate be accelerated, more be conducive to the running of SCR system, for the operation of vehicle-mounted SCR system provides strong guarantee, the technology meeting state IV emission standard dominates route SCR (urea selective urges reduction treatment) system discharge regulation, effectively can solve the exhaust emissions problem of man of Diesel Engine Plant; Fixing structure of sensor is strengthened, and strong guarantee product usability is stablized.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the casing liquid level sensor of the utility model;
Fig. 2 is the disassembly and assembly structure schematic diagram of the liquid level sensor of casing shown in Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
With reference to Fig. 1, Fig. 2, casing liquid level sensor, comprise fixed base, fixed base side is provided with the connector 9 for signal transmission, described fixed base is made up of fixed base main body 2 and upper cover 1, has electron tube 5 below fixed base main body 2, and the upper end of electron tube 5 is installed in fixed base main body 2, electron tube 5 is equipped with can along the up and down magnetic floating drum 15 of electron tube 5, the fit beneath of fixed base main body 2 have can stretch into urea box inside suction urea tube 16, return urea tube 17 and hot-water line 8; Inhale urea tube 16 head end and be provided with suction urea tube joint 10, return urea tube head end and be provided with back urea tube joint 12, hot-water line 8 is provided with water intake 8-1 and water outlet 8-2, and 8-1 and the water outlet 8-2 of suction urea tube joint 10, time urea tube joint 12, hot-water line 8 are all installed in fixed base main body 2; Fixed base inside is provided with the first heat-conducting plate 3, first heat-conducting plate 3 and is placed between fixed base main body 2 and upper cover 1, and the front of fixed base main body 2 is provided with the second heat-conducting plate 18.
Described first heat-conducting plate 3 is formed in one structure.
In the utility model, adopt two heat-conducting plate, be conducive to the normal turnover of urea liquid, be applicable to extremely cold area surroundings.In the utility model, two heat-conducting plate is located at fixed base inside and fixed base main body front, first heat-conducting plate 3 is one-body molded, the all pipe fitting effects of the existing fixing internal of first heat-conducting plate 3, have again the effect that all pipe fitting heats of heat conduction transmit, urea solution flows through the second heat-conducting plate 18 from the first heat-conducting plate 3, and centre is transmitted through secondary heat conduction, for extremely cold area, can ensure that urea solution is not freezed crystalline substance by outside cold snap when passing in and out fully.
The diameter of described hot-water line 8 is 12.7 mm-16mm, is beneficial to accelerate heat-transfer rate, makes to thaw soon, prevents from inhaling the urea liquid crystallization in urea tube, ensure that the sucking-off of urea liquid is more smooth and easy.
Described fixed base main body 2 is also provided with air duct joint 11.
Described hot-water line 8 is fixed together by spring 13 with suction urea tube 16.
There is the chassis 6 of installing fixing electron tube 5 below described fixed base main body 2, bottom suction urea tube 16, be provided with the filter screen assembly 7 for fine particle in filter urea solution.
Described fixed base main body 2 bottom is provided with the bayonet socket ring gear 14 for fixing urea box casing, the casing of urea box is beneficial to be connected with the firm of whole sensor, what make fixed base is connected and fixed structural strengthening, and product shock resistance is good, and the strong usability that ensure that product is stablized.
Described fixed base main body 2, upper cover 1 and chassis 6 all can select plastic cement to make.
Described fixed base main body 2 is also provided with the screw 4 for fixed fitting.
Described hot-water line 8 is formed in one structure, and be beneficial to solve the problem that urea liquid that segmented water pipe brings easily leaks, assembling procedure is simple and easy, and cost of goods manufactured is low.
In the utility model, fixed base is split-type structural, be made up of fixed base main body 2 and upper cover 1, this split-type structural is conducive to processing procedure assembling, during Product Assembly, first fixed base main body and pipe fitting are fixed as one, and after inner structural members has been assembled, finally assemble upper cover, be convenient to processing procedure like this and control the maintenance of defective products, convenient to the later maintenance of problem after sale.
During use, the bayonet socket ring gear 14 of the sensor of the utility model by fixed base main body 2 bottom is fixed on the casing of urea box.
Claims (9)
1. casing liquid level sensor, comprise fixed base, fixed base side is provided with the connector for signal transmission, it is characterized in that, described fixed base is made up of fixed base main body and upper cover, has electron tube below fixed base main body, and the upper end of electron tube is installed in fixed base main body, electron tube is equipped with can along the up and down magnetic floating drum of electron tube, the fit beneath of fixed base main body have can stretch into urea box inside suction urea tube, return urea tube and hot-water line; Inhale urea tube head end to be provided with and to inhale urea tube joint, return urea tube head end and be provided with back urea tube joint, hot-water line is provided with water intake and water outlet, inhale urea tube joint, time urea tube joint, hot-water line be all installed in fixed base main body with water outlet; Fixed base inside is provided with the first heat-conducting plate, and the first heat-conducting plate is placed between fixed base main body and upper cover, and the front of fixed base main body is provided with the second heat-conducting plate.
2. casing liquid level sensor according to claim 1, is characterized in that, the diameter of described hot-water line is 12.7 mm-16mm.
3. casing liquid level sensor according to claim 1 and 2, is characterized in that, described fixed base main body is also provided with air duct joint.
4. casing liquid level sensor according to claim 1 and 2, is characterized in that, described hot-water line is fixed together by spring with suction urea tube.
5. casing liquid level sensor according to claim 1 and 2, is characterized in that, has the chassis of installing fixing electron tube below described fixed base main body, is provided with the filter screen assembly for fine particle in filter urea solution bottom suction urea tube.
6. casing liquid level sensor according to claim 1 and 2, is characterized in that, described fixed base main body bottom is provided with the bayonet socket ring gear for fixing urea box casing.
7. casing liquid level sensor according to claim 1 and 2, is characterized in that, described fixed base main body, upper cover and chassis all select plastic cement to make.
8. casing liquid level sensor according to claim 1 and 2, is characterized in that, described first heat-conducting plate is formed in one structure.
9. casing liquid level sensor according to claim 1 and 2, is characterized in that, described hot-water line is formed in one structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028789.1U CN204476525U (en) | 2015-01-16 | 2015-01-16 | Casing liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028789.1U CN204476525U (en) | 2015-01-16 | 2015-01-16 | Casing liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204476525U true CN204476525U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520028789.1U Active CN204476525U (en) | 2015-01-16 | 2015-01-16 | Casing liquid level sensor |
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| Country | Link |
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| CN (1) | CN204476525U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682421A (en) * | 2019-01-19 | 2019-04-26 | 合肥杰思环保科技有限公司 | Urea sensor based on solenoid valve and ultrasonic probe |
| CN109975495A (en) * | 2019-04-30 | 2019-07-05 | 凯龙高科技股份有限公司 | A kind of integrated form urea level temperature quality sensor |
-
2015
- 2015-01-16 CN CN201520028789.1U patent/CN204476525U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682421A (en) * | 2019-01-19 | 2019-04-26 | 合肥杰思环保科技有限公司 | Urea sensor based on solenoid valve and ultrasonic probe |
| CN109975495A (en) * | 2019-04-30 | 2019-07-05 | 凯龙高科技股份有限公司 | A kind of integrated form urea level temperature quality sensor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |