An Atmosphere Control Device for Nuclide Migration Research

Abstract

The invention relates to an atmosphere control device for nuclide migration research, which belongs to the technical field of radioactive waste treatment. There is a balance solution, and the sample stand is placed on the inner steps of the glass bottle; the sample bottle containing the experimental solution is placed in the sample slot on the upper end of the sample stand, and the bottle has a built-in platinum electrode; The sealing cover is fixedly connected; the conductor is connected to the platinum electrode through the wire; the lower end of the air inlet pipe is connected to the lower air pipe, and the other end of the lower air pipe is immersed in the equilibrium solution; the top of the material channel and the exhaust pipe are fixed in the operation pipe, and the bottom end of the material channel is immersed in the experimental solution. The atmosphere control device provided by the invention can be flexibly applied to different working scenarios, enhance the purity of the experimental atmosphere to ensure the authenticity and reliability of the experimental data, in addition, the materials are cheap and easy to obtain, and the disassembly is simple and convenient for placement.

Description

technical field [0001] The invention belongs to the technical field of radioactive waste disposal, in particular to an atmosphere control device used for the study of nuclide migration. Background technique [0002] Deep geological disposal is the most feasible long-term management option for high-level radioactive waste. It buries radioactive waste in stable rock layers 500 to 1000 meters underground, and builds it into a repository. Using multiple barriers formed by the natural environment and artificial facilities, it can effectively prevent radioactivity from spreading to human life for a long time (10,000 years or even longer). circle spread. A large number of verification experiments are required in the early stage of the development of the radioactive waste repository, including studies on the migration behavior of nuclides and the corrosion resistance behavior of packaging materials in the repository environment centered on atmospheric conditions. In this part of t...

AI Technical Summary

Problems solved by technology

It is difficult to maintain a considerable amount of water vapor in a hypoxic glove box, because the oxygen probe is particularly sensitive to water molecules

In addition, leaching experiments require a series of liquid-related manipulation steps, which is not conducive to glove box work

Taking a step back, if the liquid is put into a screw-tight container and the operation of opening the cap is reduced, it will be difficult to achieve the balance of the atmosphere inside and outside the bottle, which will affect the accuracy of the experiment.

[0006] 3. In addition, the price of hypoxic glove boxes is relatively high, requiring special personnel to maintain, and the maintenance cost is relatively high, while most leaching experiments require a long period, even in years, obviously hypoxic glove boxes are not the best choice

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