DEVICE FOR MEASURING THE REDOX POTENTIAL OF MOLTEN SALTS Russian patent published in 2022 - IPC G01N17/02 G01N27/30 

FIELD: nuclear power engineering.

SUBSTANCE: invention relates to nuclear power engineering, in particular to measuring the redox potential of salt melts based on LiF-BeF₂ liquid-salt reactor (LSR), and can be used to study the corrosion resistance of structural materials of such type of reactor. The device for measuring the redox potential of molten salts contains a molybdenum substrate of a dynamic beryllium electrode electrically isolated from each other using boron nitride and a molybdenum indicator electrode, which are molybdenum rods, as well as a counter electrode, while the counter electrode is made in the form of a tube of dense graphite, molybdenum rods are placed in a two-channel alumina straws, which is placed in a steel a tube connected to a counter electrode to provide a current supply to it, at the same time, the surface area of the counter electrode intended for immersion in the melt is at least 5 times larger than the area of the molybdenum substrate of the dynamic beryllium electrode immersed in the melt, while the beryllium reference electrode is located inside the counter electrode, and the molybdenum indicator electrode protrudes outward from the counter electrode to a depth fixed so that the distance from its end to the end of the counter electrode is at least one diameter of the counter electrode.

EFFECT: possibility of reducing the effect of convective flows on the stability of the beryllium reference electrode and reducing the side release of freons on the counter electrode.

1 cl, 1 dwg, 1 tbl