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Measurement method of hydrogen concentration by using two different sensors

A technology of hydrogen concentration and sensors, applied to the structural details of gas analyzers, instruments, measuring devices, etc., can solve problems such as inability to properly deal with abnormalities in the hydrogen detection unit or failure of high-concentration hydrogen concentrations, and reduce construction costs Effect

Inactive Publication Date: 2015-03-18
KOREA NUCLEAR TECH
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Problems solved by technology

However, in the above technology, hydrogen is detected by a single hydrogen detection unit, so there is a problem that it cannot properly cope with the abnormality or failure of the hydrogen detection unit or the high concentration of hydrogen.

Method used

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  • Measurement method of hydrogen concentration by using two different sensors
  • Measurement method of hydrogen concentration by using two different sensors
  • Measurement method of hydrogen concentration by using two different sensors

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Embodiment Construction

[0031] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0032] figure 2 It is a schematic diagram showing a hydrogen monitoring device for measuring the hydrogen concentration inside the nuclear reactor vessel 10 of the present invention. In the present invention, in order to measure the hydrogen concentration, a thermocatalytic hydrogen sensor and a semiconductor gas sensor may be installed inside the nuclear reactor vessel. The sensor module 50. image 3 It is a schematic diagram showing a sensor module 50 applicable to the present invention, and shows a situation in which the sensor module is formed of a semiconductor gas sensor 52 and a plurality of thermocatalytic hydrogen sensors 51 in the sensor module. However, in the present invention, the thermocatalytic hydrogen sensor and the semiconductor gas sensor can be separately provided inside the nuclear reactor vessel as required, ...

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Abstract

The present invention relates to a method for measuring a hydrogen concentration using two kinds of sensors, and more particularly, to a method for measuring a hydrogen concentration using two kinds of sensors, capable of blocking the leakage of air contaminated by radiation generated by a sampling method by directly installing a sensor module composed of a hydrogen sensor of a heat catalytic method and a semiconductor type gas sensor in reactor containment, minimizing an auxiliary apparatus required for a hydrogen sensing apparatus, and measuring hydrogen gas of a high concentration. According to the present invention, safety measures are quickly taken by quickly and safely measuring the high hydrogen concentration generated in the reactor containment in an accident in real time.

Description

technical field [0001] The present invention relates to a method for measuring hydrogen concentration by using two sensors, and more specifically relates to a sensor module composed of a thermocatalytic hydrogen sensor and a semiconductor gas sensor which is directly placed inside a nuclear reactor vessel to make up for the difficulty in measuring high-concentration hydrogen The shortcomings of the thermal catalytic method, so as to measure the high concentration of hydrogen that may occur in the event of a major nuclear reactor accident. Background technique [0002] The Fukushima nuclear accident in March 2011 was due to a large-scale tsunami, the power supply was interrupted, and the nuclear fuel cooling function was lost. As a result, the temperature of the nuclear fuel rose to thousands of degrees and reacted with the surrounding water vapor, producing a large amount of hydrogen, which eventually led to a large explosion accident. case. [0003] figure 1 It is a diagr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/00G21C17/10
CPCG21C17/10Y02E30/30G01N27/12G01N27/125G01N27/16G01N27/4074G01N33/005
Inventor 高秉铃车精浩
Owner KOREA NUCLEAR TECH
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