CN104564258A - Box liquid level sensor - Google Patents
Box liquid level sensor Download PDFInfo
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- CN104564258A CN104564258A CN201510021140.1A CN201510021140A CN104564258A CN 104564258 A CN104564258 A CN 104564258A CN 201510021140 A CN201510021140 A CN 201510021140A CN 104564258 A CN104564258 A CN 104564258A
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- main body
- urea
- liquid level
- level sensor
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Abstract
Disclosed is a box liquid level sensor. The box liquid level sensor comprises a fixing seat, wherein the fixing seat is composed of a fixing seat main body and an upper cover, an electronic pipe is arranged below the fixing seat main body, the upper end of the electronic pipe is installed on the fixing seat main body, a magnetic float cylinder is installed on the electronic pipe, a urea suction pipe, a urea return pipe and a hot water pipe, which can be stretched into a urea box, are assembled below the fixing seat main body, a water inlet and a water outlet are formed in the hot water pipe, a urea suction pipe connector, a urea return pipe connector, and the water inlet and the water outlet of the hot water pipe are all installed on the fixing seat main body, a first heat conducting fin is arranged in the fixing seat, the first heat conducting fin is placed between the fixing seat main body and the upper cover, and a second heat conducting fin is installed in front of the fixing seat main body. The box liquid level sensor is compact in structure, stable in performance, good in vibration resisting performance, good in sealing performance, easy to assemble, low in manufacture cost, strong in environmental adaptability, and suitable for cold regional environments.
Description
Technical field
The present invention relates to a kind of casing liquid level sensor, especially relate to and be a kind ofly placed on case in-vivo measurement liquid level and with the sensor of heating function.
Background technology
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 engine 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 (massfraction is 32.5% ± 0.5%) is called AdBlue, nontoxic, clean, not easily catch fire, without explosion danger, 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 holder, water pipe and electron tube etc., and its holder is mostly plastic head holder, and plastic head holder is not with air hose joint; Plastic head holder 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 manufacturing cost is high, and leakage problem is difficult to control; Separately, heating pipe is more tiny, and diameter is 10mm, is fixed by single conducting strip, and heat-transfer rate is comparatively slow, and the easy Crystallization Plugging of urea liquid inhales urea tube and urea joint; Plastic head holder is integrated, higher to sealing requirements, and processing procedure controls difficulty, is difficult to carry out later stage after-sales service.
Summary of the invention
The technical problem to be solved in the present invention 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 technical solution adopted for the present invention to solve the technical problems is:
A kind of casing liquid level sensor, comprise holder, holder side is provided with the connector for signal transmission, it is characterized in that, described holder is made up of holder main body and upper cover, has electron tube below holder main body, and the upper end of electron tube is installed in holder main body, electron tube is equipped with can along the up and down magnetic floating drum of electron tube, the fit beneath of holder 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 inlet and water delivering orifice, inhale urea tube joint, time urea tube joint, hot-water line be all installed in holder main body with water delivering orifice; Holder inside is provided with the first conducting strip, and the first conducting strip is placed between holder main body and upper cover, and the front of holder main body is provided with the second conducting strip.
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 conducting strip is formed in one structure.
Further, described holder main body is also provided with air hose joint.
Further, described hot-water line is fixed together by spring with suction urea tube.
Further, below described holder main body, there is the chassis of installing fixing electron tube, bottom suction urea tube, be provided with the screen pack assembly for fine particle in filter urea solution.
Further, described holder 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 holder is connected and fixed structural strengthening, product shock resistance is good, and the strong usability that ensure that product is stablized.
Further, described holder main body, upper cover and chassis all can select plastic cement to make.
Further, described holder 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 sectional type water pipe brings easily leaks, assembling procedure is simple and easy, and cost of goods manifactured is low.
During use, the bayonet socket ring gear of the sensor of the present invention by holder main body bottom is fixed on the casing of urea box.
The sensor of the present invention, compact conformation, stable performance, product shock resistance is good, and product hermeticity can be good, and easily, cost of goods manifactured is low, accommodative ability of environment is strong in assembling, adapts to extremely cold area surroundings and uses.In the present invention, 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 one-piece construction schematic diagram of the casing liquid level sensor of the present invention;
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 invention will be further described.
With reference to Fig. 1, Fig. 2, a kind of casing liquid level sensor, comprise holder, holder side is provided with the connector 9 for signal transmission, described holder is made up of holder main body 2 and upper cover 1, has electron tube 5 below holder main body 2, and the upper end of electron tube 5 is installed in holder 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 holder 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 inlet 8-1 and water delivering orifice 8-2, and 8-1 and the water delivering orifice 8-2 of suction urea tube joint 10, time urea tube joint 12, hot-water line 8 are all installed in holder main body 2; Holder inside is provided with the first conducting strip 3, first conducting strip 3 and is placed between holder main body 2 and upper cover 1, and the front of holder main body 2 is provided with the second conducting strip 18.
Described first conducting strip 3 is formed in one structure.
In the present invention, adopt two conducting strip, be conducive to the normal turnover of urea liquid, be applicable to extremely cold area surroundings.In the present invention, two conducting strip is located at holder inside and holder main body front, first conducting strip 3 is one-body molded, the all pipe fitting effects of the existing fixing internal of first conducting strip 3, have again the effect that all pipe fitting heats of heat conduction transmit, urea solution flows through the second conducting strip 18 from the first conducting strip 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 holder main body 2 is also provided with air hose 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 holder main body 2, bottom suction urea tube 16, be provided with the screen pack assembly 7 for fine particle in filter urea solution.
Described holder 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 holder is connected and fixed structural strengthening, and product shock resistance is good, and the strong usability that ensure that product is stablized.
Described holder main body 2, upper cover 1 and chassis 6 all can select plastic cement to make.
Described holder 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 sectional type water pipe brings easily leaks, assembling procedure is simple and easy, and cost of goods manifactured is low.
In the present invention, holder is split-type structural, be made up of holder main body 2 and upper cover 1, this split-type structural is conducive to processing procedure assembling, during Product Assembly, first holder 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 present invention by holder main body 2 bottom is fixed on the casing of urea box.
Claims (9)
1. a casing liquid level sensor, comprise holder, holder side is provided with the connector for signal transmission, it is characterized in that, described holder is made up of holder main body and upper cover, has electron tube below holder main body, and the upper end of electron tube is installed in holder main body, electron tube is equipped with can along the up and down magnetic floating drum of electron tube, the fit beneath of holder 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 inlet and water delivering orifice, inhale urea tube joint, time urea tube joint, hot-water line be all installed in holder main body with water delivering orifice; Holder inside is provided with the first conducting strip, and the first conducting strip is placed between holder main body and upper cover, and the front of holder main body is provided with the second conducting strip.
2. casing liquid level sensor according to claim 1, is characterized in that, described hot-water line be directly 12.7 mm-16mm.
3. casing liquid level sensor according to claim 1 and 2, is characterized in that, described holder main body is also provided with air hose 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 holder main body, is provided with the screen pack 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 holder 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 holder 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 conducting strip 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 |
|---|---|---|---|
| CN201510021140.1A CN104564258A (en) | 2015-01-16 | 2015-01-16 | Box liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021140.1A CN104564258A (en) | 2015-01-16 | 2015-01-16 | Box liquid level sensor |
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| Publication Number | Publication Date |
|---|---|
| CN104564258A true CN104564258A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510021140.1A Pending CN104564258A (en) | 2015-01-16 | 2015-01-16 | Box liquid level sensor |
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| CN (1) | CN104564258A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397264A (en) * | 2017-02-08 | 2018-08-14 | 天纳克（苏州）排放系统有限公司 | Heating and filtering component and after-treatment system component |
| CN108535408A (en) * | 2017-03-03 | 2018-09-14 | 梅斯法国公司 | Urea sensor protects component and urea sensor system |
| 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 |
| CN109682422A (en) * | 2019-01-19 | 2019-04-26 | 合肥杰思环保科技有限公司 | A kind of urea sensor installing ultrasonic probe additional |
| CN109708718A (en) * | 2019-01-19 | 2019-05-03 | 合肥杰思环保科技有限公司 | A kind of urea sensor for installing Hall element |
| CN115095417A (en) * | 2022-05-19 | 2022-09-23 | 潍柴动力股份有限公司 | A flotation pontoon and urea case sensor for urea case sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100162690A1 (en) * | 2008-12-30 | 2010-07-01 | Daimler Trucks North America Llc | Urea tank with closure member for vehicle exhaust system |
| CN102095476A (en) * | 2010-11-19 | 2011-06-15 | 东莞正扬电子机械有限公司 | Liquid level sensor of urea tank |
| CN201943786U (en) * | 2010-11-19 | 2011-08-24 | 东莞正扬电子机械有限公司 | Liquid level sensor of urea box |
| CN105606642A (en) * | 2016-03-11 | 2016-05-25 | 东莞正扬电子机械有限公司 | Heat-conduction-type concentration detecting mechanism and urea-box liquid level sensor |
-
2015
- 2015-01-16 CN CN201510021140.1A patent/CN104564258A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100162690A1 (en) * | 2008-12-30 | 2010-07-01 | Daimler Trucks North America Llc | Urea tank with closure member for vehicle exhaust system |
| CN102095476A (en) * | 2010-11-19 | 2011-06-15 | 东莞正扬电子机械有限公司 | Liquid level sensor of urea tank |
| CN201943786U (en) * | 2010-11-19 | 2011-08-24 | 东莞正扬电子机械有限公司 | Liquid level sensor of urea box |
| CN105606642A (en) * | 2016-03-11 | 2016-05-25 | 东莞正扬电子机械有限公司 | Heat-conduction-type concentration detecting mechanism and urea-box liquid level sensor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397264A (en) * | 2017-02-08 | 2018-08-14 | 天纳克（苏州）排放系统有限公司 | Heating and filtering component and after-treatment system component |
| CN108535408A (en) * | 2017-03-03 | 2018-09-14 | 梅斯法国公司 | Urea sensor protects component and urea sensor system |
| 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 |
| CN109682422A (en) * | 2019-01-19 | 2019-04-26 | 合肥杰思环保科技有限公司 | A kind of urea sensor installing ultrasonic probe additional |
| CN109708718A (en) * | 2019-01-19 | 2019-05-03 | 合肥杰思环保科技有限公司 | A kind of urea sensor for installing Hall element |
| CN115095417A (en) * | 2022-05-19 | 2022-09-23 | 潍柴动力股份有限公司 | A flotation pontoon and urea case sensor for urea case sensor |
| CN115095417B (en) * | 2022-05-19 | 2024-02-20 | 潍柴动力股份有限公司 | Buoy for urea box sensor and urea box sensor |
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Application publication date: 20150429 |
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