Distillation: processes – separatory – Water purification only
Patent
1975-11-06
1977-08-30
Bascomb, Jr., Wilbur L.
Distillation: processes, separatory
Water purification only
203 20, 203 39, 203 40, 202176, 202181, 202182, 202197, 202202, B01D 302
Patent
active
040452930
ABSTRACT:
A water purification apparatus capable of treating water having impurities producing substantial foaming includes a boiler tank having a water inlet and heater, and a stack portion thereabove containing contact surface means and a heater for heating the contact surface means to a temperature above the vaporization temperature of water. In this manner water droplets which may be carried by the steam vapors from the boiler and/or foam will be immediately vaporized as it comes in contact with the contact surface means. The steam vapors pass through a condenser assembly, and the condensate passes through a filter assembly before storage in a tank. The contact surface means desirably comprises screen members providing a tortuous path and high heat conductivity. Baffle members may be interposed in the flow path for vapors from the boiler tank to the stack. Valves and a control circuit are desirably included to automatically control the volume of water in the boiler, to cut off water flow to components and to drain the assembly upon shutdown.
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