Controlled air bleed flash evaporator

Claim 1

IN A MULTIPLE STAGE EVAPORATOR SYSTEM, A PLURALITY OF FLASH EVAPORATION STAGES, MEANS FOR PASSING BRINE INTO THE FIRST STAGE AD THENCE FROM STAGE TO STAGE OF THE SERIES OF FLASH EVAPORATORS, MEANS FOR WITHDRAWING DISTILLATE AND BRINE CONCENTRATE FROM THE LAST STAGE, A CONDENSER IN EACH STAGE, MEANS COMPRISING A SCREEN FOR TRAPPING SAME LIQUID DROPLETS ENTRAINED IN THE VAPORS MOUNTED BEFORE EACH CONDENSER, MEANS TO MAINTAIN A VACUUM IN EACH STAGE COMPRISING AN AIR EJECTOR CONNECTED TO THE LAST STAGE, AND CONDUIT MEANS INTERCONNECTING EACH OF THE OTHER STAGES IN THE VICINITY OF EACH CONDENSER IN PARALLEL FLOW RELATIONSHIP TO THE LAST STAGE, SAID MEANS FOR EJECTING AIR ALSO REMOVING UNCONDENSALBE GASES FROM THE AREA OF EACH CONDENSER, AND MEANS FOR INTRODUCING A QUANTITY OF AIR INTO THE VAPORS BETWEEN SAID TRAPPING MEANS AND THE CONDENSER OF EACH EVAPORATOR STAGE TO BLANKET THE AREA ABOUT EACH CONDENSER TO EFFECT A VAPOR CONDENSATION RATE IN BALANCE WITH OTHER CONDENSERS OF THE SERIES.