Process and apparatus for solar thermal freeze desalination of sea or brackish water

摘要

Process for the desalination of seawater or brackish water, characterized in that the seawater or brackish water is cooled to freezing by the use of negative pressure generated by a plurality of steam jet nozzles (8) and salt-free ice crystals forming on the sea or brackish water Float, in the overflow of an ice separator (13) collects and melts in a melting unit, which is integrated in the ice separator (13) by the heat of steam from one or more of the steam jet nozzles (8), the steam jet nozzles (8) the required energy obtained by concentrating solar panels (2), wherein in a solar collector cycle water is heated by solar radiation in absorber tubes (3), the resulting saturated steam in a propellant steam boiler (4) is collected, in a steam dryer (6) is dried and then via one or more Steam jet nozzles (8) is relaxed, the sea or brackish water on a Vorkü (12) in a flash evaporator-cooler unit (10) is performed here is finely divided and the ice crystals forming and the concentrated sea or brackish water in the ice separator (13) are separated, wherein the ice crystals in the ice separator (13) is purged with a portion of the recycled ice crystal water, wherein the expansion-evaporator-cooler unit (10) is operated with negative pressure, wherein the negative pressure in the expansion-evaporator-cooler unit (10) by the expansion of the steam a plurality of steam jet nozzles (8) produces, wherein the produced cold fresh water to a heat exchanger (16) conducts and uses there to cool the cooling water for the mixing condenser (15) for condensing the steam from those steam jet nozzles (8) not for melting the Ice crystals are used and wherein the cooled concentrated sea or brackish water for pre-cooling (12) of the sea or Br ackwassers and / or used for cooling the cooling water of the mixing condenser (15).