A replacement chromatographic hydrogen isotope separation device

Abstract

The invention discloses a displacement chromatography hydrogen isotope separation device which comprises a rack as well as a cooling part, a separation column, an air supply part, an air collection part, a lifting part and a driving part. By adopting the displacement chromatography hydrogen isotope separation device disclosed by the invention, different adsorption functions that hydrogen and hydrogen isotope are replaced and separated by using a separation material can be achieved, the lifting part is driven by the driving part to precisely control the lifting position of the separation column, and then the separation column can be descended or lifted off the cooling part, so that adsorption or desorption of hydrogen isotope by the separation material under different temperature conditions can be achieved, a high retention rate of deuterium-tritium isotope in the separation material can be ensured, and a deuterium-tritium isotope gas obtained through final separation and selection is relatively high in purity; compared with the prior art, the device needs no parts for introducing deuterium or separating deuterium, meanwhile deuterium and tritium do not need to be replaced by introducing hydrogen after the separation material is in saturation adsorption of hydrogen, and in addition, the device is simple in structure, low in energy consumption rate, simple in process and low in cost.

Description

technical field [0001] The invention relates to the field of nuclear technology, in particular to a displacement chromatography hydrogen isotope separation device. Background technique [0002] Nuclear fusion reactors use deuterium and tritium as nuclear fuel, so protium (H) deuterium (D) tritium (T) hydrogen isotope separation is one of the core technologies of the nuclear fuel cycle of fusion reactors. Through isotope separation, not only can a large amount of unburned The reuse of deuterium-tritium gas can also effectively control the amount of tritium released in the environment during the operation of the fusion reactor, and can also be used for the proliferation and extraction of tritium, plasma discharge and treatment, etc. [0003] In order to meet the demand for a large amount of hydrogen isotope separation in the operation of fusion reactors, a series of hydrogen isotope separation technologies have been developed, including: [0004] Low temperature distillation ...

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the low-temperature rectification device existing in the prior art with high energy consumption, high temperature control precision requirements, complex technology, high system construction and operation costs; the low-temperature chromatographic hydrogen isotope separation device needs to be equipped with storage of helium, heating For helium devices, after the separation of protium, deuterium and tritium, each component needs to be separated from helium. The operation process is complicated and the equipment cost is high; 2 As a replacement gas, part of the tail gas containing a small amount of heavy isotopic components will be produced; the high-intensity cold and hot cycles of the thermal cycle adsorption device will pulverize the palladium-loaded separation material, and the interaction between palladium and palladium-loaded materials will change the hydrogen absorption characteristics of palladium, etc. The short effective life of the separation column and the above-mentioned shortcomings of high energy consumption for repeated heating and cooling provide a hydrogen isotope separation device for displacement chromatography

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