Distillation: processes – separatory – With measuring – testing or inspecting
Patent
1989-12-01
1991-10-01
Manoharan, Virginia
Distillation: processes, separatory
With measuring, testing or inspecting
137391, 137393, 137395, 159 432, 159 44, 202160, 202206, 203 2, 203 4, 203 10, 203100, 203DIG7, 203DIG11, 203DIG18, 364501, B01D 342
Patent
active
050531115
ABSTRACT:
A method and apparatus for automatically and sequentially distilling batches of water having substantially equal volumes in a plurality of distillation cycles, one batch in each cycle. During each cycle, water is admitted to a boiler tank for a fixed interval of time to form a batch in the tank. The batch of water in the tank is then vigorously boiled while venting the tank through a pipe to the atmosphere. The vigorous boiling is terminated when the temperature within the vent pipe reaches the boiling point of pure water. Upon termination of the vigorous boiling phase, a gentle boiling phase is initiated, the vent pipe is closed, and vapor in the tank is admitted to a condenser. The condenser condenses the vapor to obtain distilled water which is collected in a collection device. The gentle boiling phase continues until the level of water in the tank recedes to the level of a heater in the tank. At this time the heater is turned off and a drain valve opened to drain the water and residue remaining in the tank. After the tank is drained, water is again admitted to the tank for a fixed interval of time while the drain is kept open, thus flushing residues from the tank. After the flush water has drained from the tank, the drain is closed and a new distillation cycle is initiated.
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