SYSTEM AND ITS USE FOR DESALINATING SEAWATER

摘要

A system for desalinating seawater having an evaporation part (EP) that comprises an evaporation chamber (EC) in which seawater boils at a subatmospheric pressure, and a tank of deaerated seawater (D11; D12) at substantially the same subatmospheric pressure than the evaporation chamber which feeds deaerated seawater to said evaporation chamber. The system further comprises a condenser (C) and a pipeline (P) that connects the evaporation chamber to said condenser, the condenser and the pipeline being also at a subatmospheric pressure. The absence of incondensable gases in the seawater that is evaporated makes it possible that the velocity of the water vapour in the pipeline is the speed of sound in that gas.