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Alkali metal sampling device

A sampling device, alkali metal technology, applied in the direction of sampling device, sampling, measuring device, etc., can solve the problems of unsuitable alkali metal sampling, complex sampling conditions, complex structure, etc., to improve sampling accuracy and reliability, and ensure original The effect of nature and large amount of sampling

Active Publication Date: 2020-07-17
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

[0004] At present, the sampling conditions of the fast reactor such as the sodium-cooled fast reactor such as the heat exchange circuit of the primary circuit are more complicated. The sampling pipe of the existing mobile sampling container is blocked with waste sodium and exposed to the air. Sodium readily enters the sampling vessel and contaminates the sample as it is taken due to the inability to flush the sampling leg and sampling vessel thoroughly with the alkali metal
In addition, the sampling equipment for the primary circuit of the sodium-cooled fast reactor is used for sampling radioactive sodium in the primary circuit of the sodium-cooled fast reactor, but its structure is complex and the equipment is huge, so it is not suitable for conventional alkali metal sampling

Method used

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Embodiment Construction

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiment is one embodiment of the present invention, but not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0031] According to an embodiment of the present invention, an alkali metal sampling device 10 is provided. The alkali metal sampling device 10 can be used to o...

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Abstract

The invention provides an alkali metal sampling device. The device comprises an alkali metal sampling assembly, an operation box and an atmosphere adjusting assembly; the alkali metal sampling assembly is in fluid communication with an alkali metal loop, and is used for extracting alkali metal from the alkali metal loop; the operation box matches the alkali metal sampling assembly in a sealed modeand used for operating the alkali metal sampling assembly; and the atmosphere adjusting assembly is in fluid communication with an inner cavity of the alkali metal sampling assembly and used for providing a needed internal atmosphere environment for the alkali metal sampling assembly. The alkali metal sampling assembly is directly connected with the alkali metal loop, therefore, on-line samplingof the alkali metal loop is realized; the contact with air in the sampling process is avoided; an appropriate environment is provided for alkali metal sampling through the operation box matching the alkali metal sampling assembly in a sealed mode and the atmosphere adjusting assembly, so that contact between an alkali metal sample and air is avoided in the whole process; the original property of alkali metal is guaranteed as much as possible; and guarantee is provided for accuracy of follow-up tests.

Description

technical field [0001] The present invention relates to a sampling device, more particularly, to a device for sampling alkali metals in a heat exchange circuit or an experimental circuit of a fast reactor. Background technique [0002] At present, materials such as alkali metal sodium, potassium, lithium, and sodium-potassium alloys are widely used as heat transfer media in the fields of chemical industry, fuel, metallurgy, pharmaceuticals, and nuclear energy. The presence of impurities in the above-mentioned alkali metals and alloys will affect its performance, especially the presence of impurities such as oxygen, carbon, and calcium in the alkali metals or alloys will affect the heat transfer performance of the material, and will also affect the use of the above materials. Adverse effects on the mechanical performance, service life and reliability of the equipment. [0003] In practical applications, in order to study the properties of alkali metals and analyze the impuri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/20
CPCG01N1/2035G01N2001/205
Inventor 米争峰王密谢淳刘天才申凤阳冯策董静雅杨帆俞晓琛贾云腾赵秀岩
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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