A sea water desalination installation that employs an
evaporation-condensation system which operates continuously at a low
temperature and which enables the recovery of energy released. The
installation includes a cylindrical evaporator having a large evaporation
surface and a concentric condenser with a large surface area. Sea water
is used to cool the condenser and said water is subsequently sent to the
evaporator. A static high-pressure ventilator is used to: (i) drive the
vapor/air in a closed circuit between the evaporator and the condenser
and (ii), using a calibrated nozzle, create a pressure gradient that is
equivalent to the pressure of the saturated vapor at working temperature
between said two zones. The aforementioned evaporator and condenser are
thermally insulated in relation to one another and to the external
environment.