Patent ID: 8202402
Filing Date: 2012-06-19
Classification: B01D,C02F,Y02A,Y02W,Y10S

Abstract:
1. A method for generating a partial vacuum within a water purification system including an upside down U-tube vessel which has a first column and a second column, a first heater for heating said first column, a second heater for heating said second column, a source water inlet line which is connected to said first column of said upside down U-tube vessel at the point that is higher than the water level within said first column of said upside down U-tube vessel, a water discharge line, a vent valve, said method for generating partial vacuum within said water purification system comprising the steps of: opening said vent valve; sinking an upside down U-tube vessel into a water source until it submerges into said water; closing said vent valve after said upside down U-tube vessel is completely submerged into said water; raising said upside down U-tube vessel higher than 10 meters such that the water level remains at maximum level while a vacuum is created above it; pumping water out of said upside down-U-tube vessel; heating both columns of said upside down U-tube vessel to increase the rate of evaporation therefore reducing the water level in said upside down U-tube vessel; and reducing the heat temperature to a lower temperature for replacing only system's heat loss without increasing its temperature than the original temperature.