CN104344867A - Indirect contact liquid level detecting method and indirect contact liquid level detecting equipment - Google Patents
Indirect contact liquid level detecting method and indirect contact liquid level detecting equipment Download PDFInfo
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- CN104344867A CN104344867A CN201310333828.4A CN201310333828A CN104344867A CN 104344867 A CN104344867 A CN 104344867A CN 201310333828 A CN201310333828 A CN 201310333828A CN 104344867 A CN104344867 A CN 104344867A
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- liquid level
- indirect contact
- level detecting
- contact liquid
- throttle valve
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Abstract
The invention relates to liquid detecting methods and liquid level detecting equipment, in particular to an indirect contact liquid level detecting method and indirect contact liquid level detecting equipment. The indirect contact liquid level detecting method includes steps of pumping out air; decompressing an electromagnetic throttle valve; enabling the air to bubble; enabling a pressure sensor to receive liquid level signals. The indirect contact liquid level detecting equipment comprises a compressed air pipe, the electromagnetic throttle valve, a pressure tapping pipe, a capillary pipe and the pressure sensor. The indirect contact liquid level detecting method and the indirect contact liquid level detecting equipment have the advantages of simplicity in operation, convenience in use, stable performance, wide applicability, high detection precision, low cost and the like.
Description
Technical field
This patent relates to liquid detecting equipment, is specially a kind of Non-contact type liquid level detecting device.
Background technology
The direct contact type liquid-level detecting methods such as existing throw-in type, under its sensor is placed in liquid, perishable, easily stifled, easily to leak inefficacys, easy high temperature failure, apply under being not suitable for complex working conditions; The contact-free level detection methods such as ultrasound wave are subject to the impact of the factors such as floaters on surface, foam and transducer condensation, use and are limited to.Be difficult to detect the liquid level under high concentration, high chroma, corrosivity, high temperature, severe toxicity, radioactivity, many complex working conditions such as inflammable, explosive.
Summary of the invention
This patent, for above technical matters, provides a kind of Non-contact type liquid level detecting device and method, is applicable to the level sensing of the Various Complex operating modes such as corrosivity, high temperature, severe toxicity, radioactivity.
The concrete technical scheme of this patent is as follows:
A method for indirect contact level sensing, comprises the following steps:
A, pump gas, make gas be indirect contact medium, gas is first through electromagnetic throttle valve;
B, gas form bubbling under being pressed into open-top receptacle liquid with low flow velocity by pressure pipe;
After D, pressure transducer obtain throttling, gaseous tension is as liquid level signal.
A kind of equipment of indirect contact level sensing, be made up of compressed air hose, electromagnetic throttle valve, pressure pipe, kapillary, pressure transducer, the outlet side of compressed air hose connects electromagnetic throttle valve, kapillary, the other end of electromagnetic throttle valve, kapillary connects pressure pipe, the bottom of pressure pipe is arranged in liquid tank, and pressure pipe top arranges pressure transducer.
The differential pressure that this patent mainly utilizes kapillary to produce detects liquid level, does not need to remove with liquid, is applicable to the level sensing under high concentration, high chroma, corrosivity, high temperature, severe toxicity, radioactivity, many complex working conditions such as inflammable, explosive.The feature such as this Level meter has simple to operate, easy to use, stable performance, widely applicable, accuracy of detection high price is low.
Figure of description
Fig. 1 is the structural representation of this patent.
Wherein, 1---compressed air hose, 2---electromagnetic throttle valve, 3---pressure pipe, 4---kapillary, 5---pressure transducer, 6---liquid tank.
Embodiment
Below in conjunction with embodiment and Figure of description, this patent is described further.
With the acid of chemical industry severe corrosive for example, the method for indirect contact level sensing, comprises the following steps: A, pump gas, and make gas be indirect contact medium, gas is first through electromagnetic throttle valve; B, gas form bubbling under being pressed into open-top receptacle liquid with low flow velocity by pressure pipe; After D, pressure transducer obtain throttling, gaseous tension is as liquid level signal.The equipment of indirect contact level sensing, be made up of compressed air hose, electromagnetic throttle valve, pressure pipe, kapillary, pressure transducer, the outlet side of compressed air hose connects electromagnetic throttle valve, kapillary, the other end of electromagnetic throttle valve, kapillary connects pressure pipe, the bottom of pressure pipe is arranged in liquid tank, and pressure pipe top arranges pressure transducer.The differential pressure that this patent mainly utilizes kapillary to produce detects liquid level, does not need to remove with liquid, is applicable to the level sensing under high concentration, high chroma, corrosivity, high temperature, severe toxicity, radioactivity, many complex working conditions such as inflammable, explosive.The feature such as this Level meter has simple to operate, easy to use, stable performance, widely applicable, accuracy of detection high price is low.
Claims (2)
1. a method for indirect contact level sensing, its spy is being to comprise the following steps:
A, pump gas, make gas be indirect contact medium, gas is first through electromagnetic throttle valve;
B, gas form bubbling under being pressed into open-top receptacle liquid with low flow velocity by pressure pipe;
After D, pressure transducer obtain throttling, gaseous tension is as liquid level signal.
2. the equipment of an indirect contact level sensing, be made up of compressed air hose, electromagnetic throttle valve, pressure pipe, kapillary, pressure transducer, it is characterized in that: the outlet side of compressed air hose connects electromagnetic throttle valve, kapillary, the other end of electromagnetic throttle valve, kapillary connects pressure pipe, the bottom of pressure pipe is arranged in liquid tank, and pressure pipe top arranges pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310333828.4A CN104344867A (en) | 2013-08-04 | 2013-08-04 | Indirect contact liquid level detecting method and indirect contact liquid level detecting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310333828.4A CN104344867A (en) | 2013-08-04 | 2013-08-04 | Indirect contact liquid level detecting method and indirect contact liquid level detecting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104344867A true CN104344867A (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310333828.4A Pending CN104344867A (en) | 2013-08-04 | 2013-08-04 | Indirect contact liquid level detecting method and indirect contact liquid level detecting equipment |
Country Status (1)
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| CN (1) | CN104344867A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403283A (en) * | 2015-12-31 | 2016-03-16 | 湖南江冶机电科技股份有限公司 | Non-contact liquid level detection device |
| CN106482803A (en) * | 2016-10-22 | 2017-03-08 | 钟立朋 | A kind of fuel sensor in fuel tank |
| CN108444567A (en) * | 2018-02-26 | 2018-08-24 | 深圳优利世科技有限公司 | A kind of Isa furnace liquid-level detecting method based on infrared thermal imagery |
Citations (7)
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| CN1071250A (en) * | 1991-09-21 | 1993-04-21 | 北京市西城区新开通用试验厂 | A kind of fluid level sampling device |
| JPH0599726A (en) * | 1991-05-30 | 1993-04-23 | Kawasaki Steel Corp | Method for detecting level of molten metal in tundish |
| JP3742226B2 (en) * | 1998-08-10 | 2006-02-01 | 株式会社日立製作所 | Liquid tank equipment with liquid level measuring device |
| JP2008157909A (en) * | 2006-11-27 | 2008-07-10 | Fuji Controls Co Ltd | Liquid level detection device of well |
| CN202177424U (en) * | 2011-09-07 | 2012-03-28 | 乌鲁木齐市隆盛达环保科技有限公司 | Differential pressure damping device and damping type differential pressure liquid level measurement device |
| CN102980327A (en) * | 2012-12-14 | 2013-03-20 | 四川长虹空调有限公司 | Lubricating oil level detecting device and method in air-conditioning system |
| CN203534667U (en) * | 2013-08-04 | 2014-04-09 | 四川锦美环保科技有限公司 | Non-contact liquid level detection apparatus |
-
2013
- 2013-08-04 CN CN201310333828.4A patent/CN104344867A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599726A (en) * | 1991-05-30 | 1993-04-23 | Kawasaki Steel Corp | Method for detecting level of molten metal in tundish |
| CN1071250A (en) * | 1991-09-21 | 1993-04-21 | 北京市西城区新开通用试验厂 | A kind of fluid level sampling device |
| JP3742226B2 (en) * | 1998-08-10 | 2006-02-01 | 株式会社日立製作所 | Liquid tank equipment with liquid level measuring device |
| JP2008157909A (en) * | 2006-11-27 | 2008-07-10 | Fuji Controls Co Ltd | Liquid level detection device of well |
| CN202177424U (en) * | 2011-09-07 | 2012-03-28 | 乌鲁木齐市隆盛达环保科技有限公司 | Differential pressure damping device and damping type differential pressure liquid level measurement device |
| CN102980327A (en) * | 2012-12-14 | 2013-03-20 | 四川长虹空调有限公司 | Lubricating oil level detecting device and method in air-conditioning system |
| CN203534667U (en) * | 2013-08-04 | 2014-04-09 | 四川锦美环保科技有限公司 | Non-contact liquid level detection apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403283A (en) * | 2015-12-31 | 2016-03-16 | 湖南江冶机电科技股份有限公司 | Non-contact liquid level detection device |
| CN106482803A (en) * | 2016-10-22 | 2017-03-08 | 钟立朋 | A kind of fuel sensor in fuel tank |
| CN108444567A (en) * | 2018-02-26 | 2018-08-24 | 深圳优利世科技有限公司 | A kind of Isa furnace liquid-level detecting method based on infrared thermal imagery |
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Application publication date: 20150211 |