Distillation: apparatus – Apparatus – Systems
Patent
1988-08-04
1989-11-14
Bascomb, Wilbur
Distillation: apparatus
Apparatus
Systems
202205, 202235, 203DIG4, 165163, B01D 310, B01D 500
Patent
active
048805041
ABSTRACT:
An improved vacuum distillation system is disclosed for purifying contaminated liquids, such as seawater, brackish water and chemical effluents. In the preferred embodiment, the system includes a vertical separation chamber in which contaminated liquid (e.g., impure water) is boiled and evaporated at a low temperature due to a low pressure created by a vacuum pump; a stack of fan-shaped baffles in the top of the separation chamber that provide a tortuous path for the "distillate vapor", wherein the baffles have downturned lips that trap particulates to prevent them for escaping the separation chamber; a product chamber to which the vapor flows to be condensed; a refrigeration unit having its "cold" coil located inside the product chamber to condense the vapor into pure liquid, wherein the same unit has its "hot" coil located inside the separation chamber to help boil the contaminated liquid; and a funnel underlying the "cold" coil to catch the condensate dripping from it, wherein the funnel guides the product water into a collection area below it and acts as a shield to prevent re-evaporation of the collected water. In this embodiment, the preferred "cold" coil is spiraled to resemble an upside-down beehive, wherein each coil loop is smaller than the inner diameter of the loop above it to prevent condensate from dripping off an upper loop onto a loop below it and hindering that lower loop's ability to condensate.
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Cellini John V.
Geren James G.
Ronghi Mario F.
Bascomb Wilbur
Holland Donald S.
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