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Method, device and system for measuring concentration of hydrogen in nuclear power station containment vessel

A nuclear power plant containment and concentration measurement technology, which is applied in the field of nuclear power, can solve problems such as difficult to accurately and truly characterize the hydrogen concentration of the containment, increase the risk of exposure of personnel outside the containment, and increase the leak point of the containment, so as to overcome the hydrogen concentration. The impact of measurement, the simple and easy implementation method, and the effect of a wide range of applications

Inactive Publication Date: 2015-04-22
中广核工程有限公司 +1
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Problems solved by technology

Since this method uses the gas pumped out of the containment for measurement, the measured parameters are difficult to accurately and truly represent the hydrogen concentration in the containment after cooling and pressure reduction measurements; at the same time, this method has the rupture of the sampling pipeline, which further increases safety. The leak point of the containment, pumping the radioactive gas in the containment to the outside of the containment will increase the risk of exposure to personnel outside the containment, and the safety is not high

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  • Method, device and system for measuring concentration of hydrogen in nuclear power station containment vessel

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[0066] In order to make the invention purpose, technical solutions and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be emphasized that the specific embodiments described in this specification are only for explaining the present invention, but not for limiting the application of the present invention.

[0067] Please refer to figure 2 , figure 2 A method for measuring the hydrogen concentration in the containment vessel of a nuclear power plant is provided. specific:

[0068] In step 201, a hydrogen measuring component coated with a palladium-silver alloy film is arranged in the containment vessel of the nuclear power plant.

[0069] At a certain temperature, the ability of the palladium-silver alloy to absorb and release hydrogen will reach an equilibrium state quickly, and the conductivity of the palladium-silve...

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Abstract

The invention discloses a method for measuring a concentration of hydrogen in a nuclear power station containment vessel. The method comprises that a hydrogen measurement part plated with a palladium-silver alloy membrane is arranged in a nuclear power station containment vessel, a processor cabinet acquires a conductivity signal of the hydrogen measurement part after hydrogen absorption and release, and the processor cabinet determines a concentration of hydrogen in the nuclear power station containment vessel according the acquired conductivity signal and a signal of pressure in the nuclear power station containment vessel. The method for measuring a concentration of hydrogen in a nuclear power station containment vessel can realize safe and accurate measurement of a concentration of hydrogen in the nuclear power station containment vessel. The invention also discloses a device and system for measuring a concentration of hydrogen in a nuclear power station containment vessel.

Description

technical field [0001] The invention belongs to the technical field of nuclear power, and more particularly, the invention relates to a method, device and system for measuring the hydrogen concentration in the containment vessel of a nuclear power plant. Background technique [0002] When a serious accident occurs in a nuclear power plant, a large amount of hydrogen will be produced in the containment, and the explosion of hydrogen will threaten the integrity of the safety barrier of the nuclear power plant. A large amount of hydrogen will be produced in the accident condition of nuclear power plants. The source of hydrogen: in the early stage of the accident, the zirconium-water reaction produces hydrogen at a high rate; in the middle and later stages of the accident, the radiation decomposition of water, the reaction of core melt and concrete will also A large amount of hydrogen is produced. The accumulation of a large amount of hydrogen makes it possible that the concent...

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Application Information

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IPC IPC(8): G21C17/10
CPCG21C17/10G01N27/16Y02E30/30
Inventor 肖洲何大宇董孝胜许丹刘智寅吕爱国付皓刘路
Owner 中广核工程有限公司
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