Multistage flash evaporator distillation apparatus and method and condenser with spray film effects

Claim 1

A DISTILLATION SYSTEM COMPRISING MEANS FORMING A FLASH EVAPORATOR HAVING A PLURALITY OF STAGES, DUAL CONDENSER MEANS AND A FLASH CHAMBER IN EACH STAGE; MEANS FORMING A FIRST SPRAY FILM EVAPORATOR HAVING A FLUID HEATED CONDUIT THEREIN, MEANS FOR SPRAYING WATER ONTO SAID CONDUIT, DUAL CONDENSER MEANS IN SAID FIRST SPRAY FILM EVAPORATOR; MEANS FORMING A SECOND SPARY FILM EVAPORATOR HAVING A FLUID HEATED CONDUIT THEREIN AND MEANS FOR SPRAYING WATER ONTO SAID CONDUIT IN SAID SECOND SPRAY FILM EVAPORATOR; MEANS FOR PASSING WATER TO BE EVAPORATED SEQUENTIALLY THROUGH ONE OF SAID CONDENSER MEANS IN EACH OF SAID STAGES, THEN INTO ONE OF THE CONDENSER MEANS IN THE FIRST SPRAY FILM EVAPORATOR AND THEN INTO THE SPRAYING MEANS IN THE SECOND SPRAY FILM EVAPORATOR, MEANS FOR PASSING A HEATED FLUID THROUGH THE CONDUIT IN THE SECOND SPRAY FILM EVAPORATOR TO HEAT THE SAME AND CAUSE A PORTION OF THE WATER SPRAYED THEREON TO EVAPORATE TO FORM A WATER VAPOR, MEANS FOR PASSING SAID PORTION OF THE WATER VAPOR THROUGH THE CONDUIT IN THE FIRST SPRAY FILM EVAPORATOR TO HEAT THE SAME, MEANS FOR PASSING WATER UNEVAPORATED IN SAID SECOND SPRAY FILM EVAPORATOR INTO THE SPRAYING MEANS OF THE FIRST SPRAY FILM EVAPORATOR, MEANS FOR PASSING A PORTION OF THE ATER UNEVAPORATED IN SAID FIRST SPRAY FILM EVAPORATOR SEQUENTIALLY THROUGH SAID FLASH CHAMBERS OF THE FLASH EVAPORATOR, MEANS FOR PASSING TO WASTE A PORTION OF THE WATER REMAINING UNEVAPORATED AFTER PASSING THROUGH THE FLASH CHAMBERS OF THE FLASH EVAPORATOR AND FOR PASSING THE REMAINING PORTION SEQUENTIALLY THROUGH THE OTHER CONDENSER MEANS IN EACH STAGE OF THE FLASH EVAPORATOR AND THEN THROUGH THE OTHER CONDENSER MEANS OF THE FIRST SPRAY FILM EVAPORATOR, AND MEANS FOR REINTRODUCING THE WATER SEQUENTIALLY THROUGH THE FLASH CHAMBERS AFTER IT HAS PASSED THROUGH SAID OTHER CONDENSER MEANS.