Movable radioactivity inert gas purifier

Abstract

The invention discloses a movable radioactivity inert gas purifier, specifically a movable radioactivity inert gas purifier that is small-sized and convenient to move, dehumidification is implemented for two times by using a molecular sieve as a cooling circulation and absorber, and carbon dioxide and inert gases (argon (Ar), krypton (Kr), radon (Rn), xenon (Xe), etc.) can be effectively eliminated in a cooling state with the absorber and a cold trap. Compared with original developed equipment, continuous dehumidification can be carried out under the condition that hot and humid suction air is feed, use of the absorber is obviously reduced and therefore radioactivity waste production is reduced, and the purifier is capable of effectively eliminating and purifying inert gases and carbon dioxide.

Description

technical field [0001] The invention relates to a mobile radioactive inert gas purifier, specifically a small-scale, easy-to-move device that uses molecular sieves as refrigeration cycles and absorbents to complete dehumidification twice, and utilizes adsorbents and cold traps to effectively Mobile radioactive inert gas purifier for removing carbon dioxide and inert gases (argon (Ar), krypton (Kr), radon (Rn), xenon (Xe), etc.). Background technique [0002] Generally speaking, in order to safely operate nuclear reactors in nuclear power plants, and to increase the utilization rate and continuous power operation by improving reliability, nuclear power plants usually perform regular overhauls. During the overhaul, the power and efficiency are improved by replacing the fuel assemblies filled in the nuclear reactor that have reached the end of the design combustion degree, and various inspections and tests are carried out on various instruments. [0003] During the overhaul pe...

AI Technical Summary

Problems solved by technology

[0009] However, the original device developed in this way was applied to the field results, and it was found that if the inhaled air contains a lot of moisture, the original dehumidifier cannot handle it (it can handle it but requires a large amount of absorbent)

[0010] Moreover, the original steam-water separator and oxide gas separator for dehumidification belong to the hexahedral structure. After the related substances are removed, the absorbent and the adsorbent reach the end of their service life, and the volume of the hexahedral separator expands and deforms during the separation and storage from the device. , resulting in the problem of gas and liquid leakage

[0011] Moreover, the adsorbent used in the original oxide gas separator has a low removal efficiency for the main removal object of carbon dioxide

[0012] In addition, as a result of applying the existing equipment to the field, it was found that the use of absorbents for dehumidification and adsorbents for removing oxide gases caused an increase in the temperature of the air in the suction process, which led to an increase in the internal temperature of the cooled inert gas separator, resulting in The problem of reduced inert gas removal rate

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