CN103743445A - Oxygen flow concentration detection device - Google Patents
Oxygen flow concentration detection device Download PDFInfo
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- CN103743445A CN103743445A CN201310683284.4A CN201310683284A CN103743445A CN 103743445 A CN103743445 A CN 103743445A CN 201310683284 A CN201310683284 A CN 201310683284A CN 103743445 A CN103743445 A CN 103743445A
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- control module
- concentration detection
- oxygen flow
- ultrasonic measurement
- flow concentration
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Abstract
The invention discloses an oxygen flow concentration detection device which comprises an ultrasonic measuring chamber, a calculating control module, an ultrasonic control module and an analog-digital conversion module. An air-sensitive element is arranged on the inner surface of the chamber wall of the ultrasonic measuring chamber, and an ultrasonic emitting module and an ultrasonic receiving module are arranged on the inner surfaces of the chamber walls of the two ends of the ultrasonic measuring chamber respectively. The calculating control module, the ultrasonic control module, the analog-digital conversion module and the air-sensitive element are connected, and a gradienter, a display screen and an alarm device are arranged on the outer surface of the chamber wall of the ultrasonic measuring chamber. Compared with the prior art, the oxygen flow concentration detection device is simple in structure, high in detection precision and high in safety.
Description
Technical field
The present invention relates to gas flow Concentration Detection field, relate in particular to a kind of high precision oxygen flow concentration detection apparatus.
Background technology
Oxygenerator in use, need to detect the concentration of oxygen, and oxygen concentration is too high, can cause user's oxygen-intoxication, and oxygen concentration is too low, does not have oxygen uptake effect.
In prior art, often by zirconia, survey, oxygen is porous platinum (Pt) electrode on the difference sintering of the two sides of Zirconia electrolytic (ZrO2 pipe).Detection mode is by guide wire, tested gas is imported to zirconia sensing chamber, then by heating element, zirconia is heated to working temperature (more than 650 ℃).Zirconia generally adopts tubulose, and electrode adopts porous platinum electrode.Its advantage is the not impact of examined gas temperature, can detect the oxygen content in various temperature gas, so be used in a large number, industry is online to be detected.Its shortcoming is that the reaction time is slow; Complex structure, easily affects accuracy of detection, and the life-span is length not.
At present, use ultrasound examination oxygen flow concentration-response speed is fast, the life-span is long, general by using binary gas component, the concentration of two kinds of components of contrast, calculates oxygen concentration, need to arrange with reference to gas, measure the flow velocity with reference to gas simultaneously, with reference to temperature, humidity and the pressure of gas and measurement gas, be difficult to accomplish in full accord, therefore, error is larger.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and providing can a kind of high precision oxygen flow concentration detection apparatus efficiently.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of oxygen flow concentration detection apparatus, comprise ultrasonic measurement chamber, calculation control module, ultrasound wave control module and analog digital modular converter, the two ends in ultrasonic measurement chamber are provided with air intake opening and gas outlet, the chamber wall inside surface in ultrasonic measurement chamber is provided with gas sensor, the inside surface of chamber, two ends, ultrasonic measurement chamber wall is respectively arranged with ultrasound wave transmitter module and ultrasound wave receiver module, in the pipeline that is full of fluid, ultrasonic pulse is propagated through fluid, at downbeam and countercurrent direction, there is the different travel-times, the mistiming of the different adverse currents of gas flow rate and following current is just different, the flow velocity of gas by the mistiming, just can be detected.
Calculation control module, ultrasound wave control module, analog digital modular converter are connected with gas sensor, and gas sensor is burning sensitive material.
The chamber wall outside surface in ultrasonic measurement chamber is provided with level meter, and ultrasonic measurement chamber is in horizontality, and concentration and the flow of oxygen are steady, detects accurately.
The chamber wall outside surface in ultrasonic measurement chamber is provided with display screen, can show in real time concentration and the flow of oxygen.
Calculation control module is provided with data storage cell, can store the flow of setting-up time, calculating mean value.
The chamber wall outside surface in ultrasonic measurement chamber is provided with warning device, and warning device is electrically connected with calculation control module, and when oxygen concentration or flow exceed the scope of setting, warning device is reported to the police.
Compared with prior art, beneficial effect of the present invention has:
First, the present invention uses gas sensor to detect oxygen concentration, does not need to arrange with reference to gas, reduces error, simplicity of design, and precision is high.
Further, warning device can and alarm, safe.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, a kind of oxygen flow concentration detection apparatus, comprise ultrasonic measurement chamber 1, calculation control module 2, ultrasound wave control module 3 and analog digital modular converter 4, the two ends in ultrasonic measurement chamber 1 are provided with air intake opening 501 and gas outlet 502, the chamber wall inside surface in ultrasonic measurement chamber 1 is provided with gas sensor 6, the inside surface of ultrasonic measurement chamber 1 chamber, two ends wall is respectively arranged with ultrasound wave transmitter module 701 and ultrasound wave receiver module 702, in the pipeline that is full of fluid, ultrasonic pulse is propagated through fluid, at downbeam and countercurrent direction, there is the different travel-times, the mistiming of the different adverse currents of gas flow rate and following current is just different, the flow velocity of gas by the mistiming, just can be detected.
Calculation control module 2, ultrasound wave control module 3, analog digital modular converter 4 and gas sensor 6 are connected, and gas sensor 6 is burning sensitive material.
The chamber wall outside surface in ultrasonic measurement chamber 1 is provided with level meter 7, and ultrasonic measurement chamber 1 is in horizontality, and concentration and the flow of oxygen are steady, detects accurately.
The chamber wall outside surface in ultrasonic measurement chamber 1 is provided with display screen 8, can show in real time concentration and the flow of oxygen.
Calculation control module 2 is provided with data storage cell, can store the flow of setting-up time, calculating mean value.
The chamber wall outside surface in ultrasonic measurement chamber 1 is provided with warning device 9, and warning device 9 is electrically connected with calculation control module 2, and when oxygen concentration or flow exceed the scope of setting, warning device is reported to the police.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. an oxygen flow concentration detection apparatus, it is characterized in that, comprise ultrasonic measurement chamber, calculation control module, ultrasound wave control module and analog digital modular converter, the two ends in described ultrasonic measurement chamber are provided with air intake opening and gas outlet, the chamber wall inside surface in described ultrasonic measurement chamber is provided with gas sensor, and the inside surface of chamber, two ends, described ultrasonic measurement chamber wall is respectively arranged with ultrasound wave transmitter module and ultrasound wave receiver module;
Described calculation control module, ultrasound wave control module, analog digital modular converter are connected with gas sensor.
2. a kind of oxygen flow concentration detection apparatus according to claim 1, is characterized in that: described gas sensor is burning sensitive material.
3. a kind of oxygen flow concentration detection apparatus according to claim 1, is characterized in that: the chamber wall outside surface in described ultrasonic measurement chamber is provided with level meter.
4. a kind of oxygen flow concentration detection apparatus according to claim 1, is characterized in that: the chamber wall outside surface in described ultrasonic measurement chamber is provided with display screen.
5. a kind of oxygen flow concentration detection apparatus according to claim 1, is characterized in that: described calculation control module is provided with data storage cell.
6. a kind of oxygen flow concentration detection apparatus according to claim 1, is characterized in that: the chamber wall outside surface in described ultrasonic measurement chamber is provided with warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683284.4A CN103743445A (en) | 2013-12-13 | 2013-12-13 | Oxygen flow concentration detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683284.4A CN103743445A (en) | 2013-12-13 | 2013-12-13 | Oxygen flow concentration detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103743445A true CN103743445A (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310683284.4A Pending CN103743445A (en) | 2013-12-13 | 2013-12-13 | Oxygen flow concentration detection device |
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| CN (1) | CN103743445A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018086086A1 (en) * | 2016-11-11 | 2018-05-17 | 佛山市顺德区键合电子有限公司 | Method for improving accuracy of oxygen concentration detection |
| CN112179406A (en) * | 2015-03-10 | 2021-01-05 | 恩德莱斯和豪瑟尔分析仪表两合公司 | In-line measuring device |
| CN113519329A (en) * | 2020-04-17 | 2021-10-22 | 云水工程南京有限公司 | Method for identifying artificial rain (snow) increasing operation condition of ground silver iodide flame furnace |
Citations (4)
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|---|---|---|---|---|
| US6474137B1 (en) * | 1997-07-22 | 2002-11-05 | Lattice Intellectual Property Limited | Measuring relative density of a gas |
| WO2012130194A1 (en) * | 2011-04-01 | 2012-10-04 | Prochaska Ales | Device for measuring oxygen concentration in gas mixtures containing helium and/or hydrogen |
| CN202947994U (en) * | 2012-12-12 | 2013-05-22 | 湖南省国瑞仪器有限公司 | Ultrasonic oxygen sensor |
| CN203337614U (en) * | 2013-07-01 | 2013-12-11 | 合肥威师智能电子电器厂 | Ultrasonic oxygen concentration sensor |
-
2013
- 2013-12-13 CN CN201310683284.4A patent/CN103743445A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474137B1 (en) * | 1997-07-22 | 2002-11-05 | Lattice Intellectual Property Limited | Measuring relative density of a gas |
| WO2012130194A1 (en) * | 2011-04-01 | 2012-10-04 | Prochaska Ales | Device for measuring oxygen concentration in gas mixtures containing helium and/or hydrogen |
| CN202947994U (en) * | 2012-12-12 | 2013-05-22 | 湖南省国瑞仪器有限公司 | Ultrasonic oxygen sensor |
| CN203337614U (en) * | 2013-07-01 | 2013-12-11 | 合肥威师智能电子电器厂 | Ultrasonic oxygen concentration sensor |
Non-Patent Citations (1)
| Title |
|---|
| 路顺 等: "氧化锆氧传感器的研究进展", 《仪表技术与传感器》, 30 March 2007 (2007-03-30) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179406A (en) * | 2015-03-10 | 2021-01-05 | 恩德莱斯和豪瑟尔分析仪表两合公司 | In-line measuring device |
| WO2018086086A1 (en) * | 2016-11-11 | 2018-05-17 | 佛山市顺德区键合电子有限公司 | Method for improving accuracy of oxygen concentration detection |
| CN108369213A (en) * | 2016-11-11 | 2018-08-03 | 佛山市顺德区键合电子有限公司 | A method of improving detection oxygen concentration accuracy |
| CN113519329A (en) * | 2020-04-17 | 2021-10-22 | 云水工程南京有限公司 | Method for identifying artificial rain (snow) increasing operation condition of ground silver iodide flame furnace |
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Application publication date: 20140423 |
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