Patent ID: 8216431
Filing Date: 2012-07-10
Classification: B01D,C02F,Y02A,Y10S

Abstract:
1. A liquid distillation system comprising: a boiler stage including a boiler assembly for containing a fixed amount of liquid; a condenser stage including a condenser assembly which includes a heat exchanger; a liquid management stage including a liquid management assembly having a passive magnetic valve which opens directly by force of pressure and which is initially in an open position, and a check valve, arranged to form a semi-closed system with the boiler stage and the condenser stage; wherein the passive magnetic valve optimizes operating pressure by throttling between upper and lower operating pressure limits, wherein a fixed amount of liquid is provided to the boiler stage and flows through the check valve until the liquid in the boiler stage reaches a predetermined liquid height/level, whereupon the passive magnetic valve is closed when the lower operating pressure limit is reached and the check valve closes, whereupon liquid in the boiler stage is heated under pressure until the applicable phase change pressure is reached, whereupon the passive magnetic valve opens directly by force of pressure, which allows the liquid heated under pressure to change phase to a superheated vapor and flow through the passive magnetic valve to the heat exchanger in the condenser stage, and as the superheated vapor exits the boiler stage the pressure and liquid height/level in the boiler stage decreases, and the check valve opens allowing liquid flow through the check valve until the liquid in the boiler stage reaches a predetermined liquid height/level, whereupon the passive magnetic valve is closed when the lower operating pressure limit is reached and the check valve closes, the superheated vapor entering the condenser stage condenses thereby releasing its latent heat of evaporation into the heat exchanger thereby evaporating liquid within the heat exchanger thereby creating a corresponding amount of steam on heat exchanger surfaces, wherein at the upper pressure limit the pressure from the superheated vapor is high enough to cause the passive magnetic valve to open by force of pressure, wherein the lower operating pressure limit is the lowest pressure at which the passive magnetic valve will remain open.