CN204128643U - Liquid level detection system - Google Patents
Liquid level detection system Download PDFInfo
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- CN204128643U CN204128643U CN201420550710.7U CN201420550710U CN204128643U CN 204128643 U CN204128643 U CN 204128643U CN 201420550710 U CN201420550710 U CN 201420550710U CN 204128643 U CN204128643 U CN 204128643U
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- liquid level
- detection system
- level detection
- reflecting body
- guide pipe
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Abstract
The utility model relates to field of industry detection, discloses a kind of liquid level detection system, comprises the floating block floated on fluid to be measured, signal generation apparatus, signal receiving device, signal processing apparatus and the display device for showing liquid level situation; Described liquid level detection system also comprises the guide pipe be communicated with fluid to be measured, the reflecting body for reflected signal be fixed on described floating block; The periphery of described reflecting body supports the inwall of described guide pipe, and described reflecting body can move up and down along described guide pipe.This liquid level detection system eliminates slosh to measuring the impact brought, and improve the precision of detection, the scope of application is wider.
Description
Technical field
The utility model relates to field of industry detection, is specifically related to a kind of high-precision liquid level detection system.
Background technology
In field of industry detection, level sensing precision prescribed is high, and needs can adapt to site environment requirement very well.The singularity using due to it and require, very high request is proposed to measuring accuracy, also requires to there is very strong adaptive capacity to environment, non-maintaining ability in addition, long ability to work in the presence of a harsh environment, need consider the fluctuating of fluid to be measured, bubble, the impact of phenomenon such as rock.
A kind of liquid level detection system of prior art comprises the floating block flown on test solution, the signal generation apparatus be fixed on floating block, is positioned at signal receiving device, signal processing apparatus and display device above signal generation apparatus.Signal generation apparatus on floating block can send signal, and signal receiving device sends signal to signal processing apparatus after receiving signal, and signal processing apparatus, by obtaining the situation of liquid level after signal transacting, is then shown by display device.
But when slosh, the signal that signal generation apparatus sends also followed by and rocks, and existing liquid level detection system cannot detect liquid level position exactly.In addition, the internal circuit of signal generation apparatus easily produces aging, electric leakage, heat build-up etc., is easily entered by the liquid rocked, may cause a series of safety problem if be fixed on by signal generation apparatus on floating block.When fluid to be measured is the flammable and combustible liquids such as diesel oil, gasoline, this situation is especially dangerous.
Utility model content
Technical problem to be solved in the utility model is that overcoming existing liquid level detection system can cause because of slosh measuring inaccurate problem, improves the precision of level sensing.
The utility model is achieved in that provides a kind of liquid level detection system, comprises the floating block floated on fluid to be measured, signal generation apparatus, signal receiving device, signal processing apparatus and the display device for showing liquid level situation; Described liquid level detection system also comprises the guide pipe be communicated with fluid to be measured, the reflecting body for reflected signal be fixed on described floating block; The periphery of described reflecting body supports the inwall of described guide pipe, and described reflecting body can move up and down along described guide pipe.
Further, the ball being also provided with mount pad between described floating block and described reflecting body and being rollably installed on described mount pad, the inwall of described guide pipe is supported at the edge of described ball.
Further, described reflecting body is fixedly connected with described mount pad by support bar.
Further, described floating block is connected with described mount pad is detachable.
Further, described signal generation apparatus and signal receiving device are positioned at above described reflecting body.
Further, described signal generation apparatus is light signal generating means or sound source signal generating device.
Further, the periphery of described reflecting body is coated with the flexible glue of Liquid Residue.
Further, described guide pipe is hollow circular tube.
Compared with prior art, floating block and reflecting body are stable in guide pipe by the structural design of the utility model liquid level detection system, ensure that it absolute parallelly along with the change of liquid level height moves up and down, can eliminate slosh to measuring the impact brought.And the guide pipe being arranged at periphery can be avoided being splashed on reflecting body during liquid sloshing, affects reflecting effect and measuring accuracy, thus improves the precision of detection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment liquid level detection system.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, for a preferred embodiment of the utility model liquid level detection system, comprise the floating block 1 floated on fluid to be measured, signal generation apparatus 2, signal receiving device 3, signal processing apparatus (not shown) and the display device (not shown) for showing liquid level situation.This liquid level detection system also comprises the guide pipe 4 be communicated with fluid to be measured, the reflecting body 5 for reflected signal be fixed on floating block 1.The periphery of reflecting body 5 supports the inwall of guide pipe 4, and reflecting body 5 can move up and down along guide pipe 4.
Wherein, guide pipe 4 is the hollow tube communicated with fluid to be measured, can ensure that the reflecting body 5 being arranged at its inside accurately indicates liquid level, can avoid again being splashed on reflecting surface during liquid sloshing simultaneously, affect reflecting effect and measuring accuracy.The xsect of guide pipe 4 can be circle, square, rectangle etc., and this guide pipe advantageous cross sections is circular hollow tube.
Floating block 1 and reflecting body 5 are stable in guide pipe by said structure design, ensure that it can absolute parallelly along with the change of liquid level height moves up and down along guide pipe 4, moment keeps level, eliminates the measuring error that slosh brings, ensure that the precision of level sensing.
Further, the ball 62 being also provided with mount pad 61 between floating block 1 and reflecting body 5 and being rollably installed on described mount pad, guide pipe 4 inwall is supported at the edge of ball 62, reflecting body 5 is fixedly connected with mount pad 61 by support bar 7, make floating block 1 and reflecting body 5 can integral level ground, swimmingly along with level change moves up and down.Wherein, ball 62 has 2 at least, is distributed on mount pad 61 offside, can be 2,3 or 4, also can be covered with the periphery of mount pad 61.For adapting to the level sensing needs of different liquids, floating block 1 is designed to detachable connection with mount pad 61, to facilitate the density according to specifically measuring liquid to change corresponding floating block, makes floating block 1 and reflecting body 5 entirety keep stress balance.Above-mentioned floating block 1, mount pad 61, ball 62, support bar 7 and reflecting body 5 can be regarded as a float module, and this buoyancy suffered by float module equals the gravity of float module, ball 62 and the friction force of guide pipe 4 inwall and the friction force sum of reflecting body 5 periphery and guide pipe 4 inwall.
Signal generation apparatus 2 and signal receiving device 3 are preferably disposed on the top of reflecting body 5, are more preferably both and are arranged at abreast directly over reflecting body 5.Signal generation apparatus 2 is light signal generating means or sound source signal generating device, can send light wave or sound wave.Circuit is contained in the inside of signal generation apparatus 2, and the phenomenons such as easy generation is aging, electric leakage, heat build-up, are arranged at the top of reflecting body 5, avoid contacting with fluid to be measured causing safety problem.Signal generation apparatus 2 sends signal (light wave or sound wave), and on reflecting body 5, the reflection of reflecting surface is back to signal receiving device 3, and signal receiving device 3 receives signal and sends signal processing apparatus to.Signal processing apparatus, converts measured signal to level value, first connects an operation amplifier treating apparatus and measured signal is converted to level value again to the control of the software in PLC and then demonstrated liquid level in liquid storage container by display device.
The periphery of reflecting body 5 is coated with the flexible glue of Liquid Residue, when floating block 1 and reflecting body 5 move down, the flexible glue of all sides can remove the Liquid Residue (principle is identical with wiper) of guide pipe 4 inwall, prevents Liquid Residue from polluting reflecting surface, affects measuring accuracy.
During concrete use, first select suitable floating block 1 according to the density of fluid to be measured.During detection, this liquid level detection system is put into fluid to be measured, floating block 1 is partly or entirely immersed in fluid to be measured, and entire system keeps stress balance.Signal generation apparatus 2 sends light wave or sound wave, has arrived reflecting body 5 surface and has been reflected back, and entered signal receiving device 3, and signal receiving device 3 receives signal and is sent to signal processing apparatus and is converted into level value and shows result by display device.
In sum, even if the utility model liquid level detection system also can measure height of liquid level exactly when slosh, and the Liquid Residue flexible glue that goes on reflecting body can remove the Liquid Residue of guide pipe inwall when floating block slides, prevent Liquid Residue and bubble that liquid produces from polluting reflecting surface, affect measuring accuracy.In addition, this system adopts the detection means of optics or acoustics, and avoid the potential safety hazard that electrical detection means are brought, the scope of application is wider.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a liquid level detection system, comprise the floating block floated on fluid to be measured, signal generation apparatus, signal receiving device, signal processing apparatus and the display device for showing liquid level situation, it is characterized in that, described liquid level detection system also comprises the guide pipe be communicated with fluid to be measured, the reflecting body for reflected signal be fixed on described floating block; The periphery of described reflecting body supports the inwall of described guide pipe, and described reflecting body can move up and down along described guide pipe.
2. liquid level detection system according to claim 1, is characterized in that, be also provided with mount pad between described floating block and described reflecting body and be rollably installed on the ball of described mount pad upper peripheral edge, the inwall of described guide pipe is supported at the edge of described ball.
3. liquid level detection system according to claim 2, is characterized in that, described reflecting body is fixedly connected with described mount pad by support bar.
4. liquid level detection system according to claim 2, is characterized in that, described floating block is connected with described mount pad is detachable.
5. liquid level detection system according to claim 1, is characterized in that, described signal generation apparatus and signal receiving device are positioned at above described reflecting body.
6. the liquid level detection system according to claim 1,4 or 5, is characterized in that, described signal generation apparatus is light signal generating means or sound source signal generating device.
7. liquid level detection system according to claim 1, is characterized in that, the periphery of described reflecting body is coated with the flexible glue of Liquid Residue.
8. liquid level detection system according to claim 1, is characterized in that, described guide pipe is hollow circular tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420550710.7U CN204128643U (en) | 2014-09-24 | 2014-09-24 | Liquid level detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420550710.7U CN204128643U (en) | 2014-09-24 | 2014-09-24 | Liquid level detection system |
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| CN204128643U true CN204128643U (en) | 2015-01-28 |
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| CN201420550710.7U Active CN204128643U (en) | 2014-09-24 | 2014-09-24 | Liquid level detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018081142A1 (en) * | 2016-10-25 | 2018-05-03 | Abbott Laboratories | Assessment and control of reagents in automated slide preparation |
| CN116086572A (en) * | 2023-02-22 | 2023-05-09 | 深圳市铤创利电子科技有限公司 | Liquid level sensor capable of stably controlling displacement and timely feeding back capacity |
-
2014
- 2014-09-24 CN CN201420550710.7U patent/CN204128643U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018081142A1 (en) * | 2016-10-25 | 2018-05-03 | Abbott Laboratories | Assessment and control of reagents in automated slide preparation |
| CN109983310A (en) * | 2016-10-25 | 2019-07-05 | 雅培实验室 | The assessment and control of reagent in automatic glass carrier preparation |
| US10871426B2 (en) | 2016-10-25 | 2020-12-22 | Abbott Laboratories | Assessment and control of reagents in automated slide preparation |
| CN109983310B (en) * | 2016-10-25 | 2021-11-05 | 雅培实验室 | Automated slide preparation reagent assessment and control |
| CN116086572A (en) * | 2023-02-22 | 2023-05-09 | 深圳市铤创利电子科技有限公司 | Liquid level sensor capable of stably controlling displacement and timely feeding back capacity |
| CN116086572B (en) * | 2023-02-22 | 2023-12-22 | 深圳市铤创利电子科技有限公司 | Liquid level sensor capable of stably controlling displacement and timely feeding back capacity |
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