Method and installation for continuous cleaning of radioactively contaminated liquids by means of distillation

摘要

The installation for continuous cleaning of radioactively contaminated liquids by means of distillation, which realises a method for continuous cleaning, has a vertically erected housing (1) in which a tubular heating chamber (2), which forms an external evaporation zone in the cavity of the housing (1), and an evaporating chamber (7) in which an internally located evaporating zone is formed are located. The chamber (7) is formed by enclosing tubes (8, 9) of the same diameter which are mounted approximately coaxially with the heating chamber (2) and fastened at their end faces, and by a part of the tubes (10) of this chamber (2) whose ends are located inside the enclosing tubes (8, 9), of which the lower one (9) is constructed with a base (11). The chamber (7) communicates with the cavity of the housing (1) in order to feed the liquid to be cleaned, which flows through the external evaporating zone, and has a pipe nozzle (15) for discharging from the housing (1) the liquid which contains concentrated radioactive additives. In this case, the layer for the internal evaporation zone, which prevents the radioactive radiation from penetrating into the external environment, is provided by the layer of the liquid to be cleaned, which is fed to the cavity of the housing (1). A device (3) for cleaning the vapour is mounted above the heating chamber (2). <IMAGE>