Device and method for testing permeation of hydrogen and isotopes thereof under corrosion synergy

Abstract

The invention relates to a fusion reactor fuel technology, in particular to a hydrogen and isotope penetration test device and method under corrosion synergy, and the device comprises a gas treatment system, a corrosion system and a penetration detection system; the gas treatment system comprises a gas source, a mass flow meter and a 5A molecular sieve bed, the corrosion system comprises a heating unit and a corrosion kettle unit, the penetration test system comprises a hydrogen isotope standard leak hole, a quadrupole mass spectrometer, an ion pump, a molecular pump and a mechanical pump, and the method comprises the steps of sample pretreatment, sample loading, ventilation and vacuumizing, verification, gas replacement and data analysis. According to the device, impurity components in hydrogen isotope gas can be effectively removed, experimental conditions are more accurately controlled, experimental data are more effective, real-time online monitoring of the hydrogen isotope permeation flux in the corrosion process can be achieved, the obtained data are closer to the real service environment of materials, and more accurate data are provided for fusion reactor tritium breeding cladding design.

Description

technical field [0001] The invention belongs to fusion reactor fuel technology, in particular to a hydrogen and its isotope penetration test device and method under corrosion coordination. Background technique [0002] Controllable nuclear fusion energy is one of the most promising fundamental ways to completely solve the energy problem. Hydrogen and its isotopes (deuterium, tritium) are important fuels for magnetic confinement fusion reactors. For the 2GW DEMO demonstration reactor, the daily consumption of tritium is 313g, while the daily production of ITER is only 0.4g, the price of CANDU tritium is 30,000 USD / g, and the tritium released into the environment under normal working conditions is no more than 1g a year. In view of economical and safety considerations, the efficient utilization of fuel tritium is a key to the commercialization of fusion reactors. The tritium breeding envelope is the core component of the fusion reactor to achieve tritium self-sustainment and...

AI Technical Summary

Problems solved by technology

At present, there is no report on the corrosion-permeation online test platform for cladding structural materials, and relevant data are still lacking. The relevant researches at home and abroad are all offline hydrogen permeation tests after corrosion experiments, and it is difficult to obtain hydrogen isotope permeation tests of structural materials in long-term corrosion environments. For key data, it is urgent to establish a corrosion-penetration online test system and test method

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