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Oxygen detector, detection method and application

A detector and oxygen technology, applied in the field of oxygen detectors, can solve problems such as inaccuracy, achieve accurate oxygen concentration value, improve service life, and improve detection accuracy and stability.

Active Publication Date: 2020-08-25
JIANGSU JICUI DEPTH SENSING TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first object of the present invention is to provide an oxygen detector, which can detect the temperature of the environment where the oxygen detector is located and the temperature of the oxygen-permeable membrane by setting a temperature sensor inside the oxygen detector, and by converting the temperature signal Pass it to the control unit, and then control the heater to heat the oxygen-permeable membrane, so that the temperature of the oxygen-permeable membrane is higher than the ambient temperature, thereby avoiding the condensation of water vapor on the oxygen-permeable membrane and improving the product life; at the same time, the measured The oxygen concentration value is converted to the value at normal temperature, thus solving the problem of inaccurate oxygen concentration measured at different temperatures and improving the measurement accuracy

Method used

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  • Oxygen detector, detection method and application
  • Oxygen detector, detection method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] refer to figure 1 As shown, it is a schematic structural diagram of the oxygen detector proposed in this embodiment, including: a sealed casing 90 and an information processing unit 80, and the sealed casing 90 is provided with a heater 20, a first temperature sensor 30, and a control unit 40 ; The second temperature sensor 50, the oxygen sensing element 60 and the air pressure sensor 70. The sealed housing 90 is provided with an air inlet and a wire outlet. The oxygen-permeable membrane 10 is disposed at the air inlet of the sealed housing 90 . The heater 20 is arranged adjacent to the oxygen-permeable membrane 10 to heat the oxygen-permeable membrane 10 .

[0062] The heater 20 is connected with a control unit 40 , and the control unit 40 is connected with the first temperature sensor 30 and the second temperature sensor 50 respectively. The control unit 40 can control the heater 20 to heat by receiving the temperature signals of the first temperature sensor 30 and...

Embodiment 2

[0072] The structure and detection method of the oxygen detector provided in this embodiment are the same as those in Embodiment 1, only the electrolyte formula in the electrochemical device is different.

[0073] The electrolyte formula provided in this embodiment is that the concentration of citric acid is 0.6 mol / L; the concentration of tartaric acid is 0.3 mol / L.

Embodiment 3

[0075] The structure and detection method of the oxygen detector provided in this embodiment are the same as those in Embodiment 1, only the electrolyte formula in the electrochemical device is different.

[0076] The electrolyte formula provided in this embodiment is that the concentration of citric acid is 1 mol / L; the concentration of tartaric acid is 0.5 mol / L.

[0077] After testing, the measured results of the electrolytes of the above three examples are as follows. From the data in the table, it can be known that by improving the composition of the electrolyte, the stability of the device itself has been significantly improved, and the compatibility of tartaric acid and citric acid has improved. While improving the effect, it also avoids the situation that the effect of a single ingredient is negligible.

[0078] Table 1

[0079]

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Abstract

The invention provides an oxygen detector, a detection method and application. The oxygen detector comprises an air inlet provided with an oxygen permeation membrane, a heater is installed close to the air inlet, the heater is connected with a control unit, and the control unit is connected with a temperature sensor; the temperature sensor comprises a first temperature sensor mounted on the oxygenpermeation membrane and a second temperature sensor mounted in the oxygen detector and used for detecting the environment temperature; the control unit is used for receiving temperature signals of the first temperature sensor and the second temperature sensor so as to control the heater to conduct heating, and it is guaranteed that the temperature of the oxygen permeation membrane is higher thanthe environment temperature. By additionally arranging the temperature sensor, the temperature of the environment where the oxygen detector is located and the temperature of the oxygen permeation membrane can be detected, then the heater is controlled to heat the oxygen permeation membrane, the temperature of the oxygen permeation membrane is higher than the environment temperature, and thereforewater vapor is prevented from condensing on the oxygen permeation membrane.

Description

technical field [0001] The invention relates to the field of gas detection, in particular to an oxygen detector, a detection method and an application. Background technique [0002] Oxygen detectors are widely distributed in various industries such as petroleum, chemical industry, gas, coal, metallurgy, electric power, municipal administration, agriculture, food, biology, medicine, universities, scientific research, etc., and are used to measure the oxygen concentration in the working environment and samples. For example, in some special environments, such as mines or underground operations, a large amount of gas is often produced. If the oxygen content is not monitored in time, the mixed gas will explode, or due to insufficient oxygen content, it is easy to cause construction workers to suffocate. And other issues. Therefore, the monitoring of oxygen in industrial production is an important means of safety assurance. [0003] The oxygen detector currently used to detect t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/409G01L7/00G01K13/02G01K13/024
CPCG01N27/409G01L7/00G01K13/02G01K13/024
Inventor 雷鸣
Owner JIANGSU JICUI DEPTH SENSING TECH RES INST CO LTD
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