초록 ▼

Liquid treating apparatus especially useful for water purification, including an output section and an input section interconnected at their tops by a closed condensation chamber. The input section includes raw liquid supply and return columns, opening at their bottoms into a raw liquid supply open

Liquid treating apparatus especially useful for water purification, including an output section and an input section interconnected at their tops by a closed condensation chamber. The input section includes raw liquid supply and return columns, opening at their bottoms into a raw liquid supply open to the atmosphere, and the output section includes treated liquid supply and return columns open at their bottoms into a treated liquid container also open to the atmosphere. Treated liquid is cooled and circulated in the output section to produce and maintain negative pressure at one end of the condensation chamber, and raw water in mixed liquid and vapor form is supplied by aspiration in the input section, the vapor phase passing through the condensation chamber, and the liquid phase being used to drive the pump which causes the circulation in the output section. Several embodiments of the invention are shown.

대표청구항 ▼

A liquid treating system which, after an initial start-up period, is maintained operable solely by the temperature difference between cooler, treated liquid and warmer, untreated liquid comprising, in combination: a condensation chamber closed to the atmosphere and having first and second portions i

A liquid treating system which, after an initial start-up period, is maintained operable solely by the temperature difference between cooler, treated liquid and warmer, untreated liquid comprising, in combination: a condensation chamber closed to the atmosphere and having first and second portions in communication with each other to provide a path between said portions for vapor but not for liquid, said condensation chamber having its second portion disposed at a given height; closed output means connected to said first portion of said chamber and including an apogee and pumping means actuable to cause flow of treated liquid at a first temperature to said apogee and into said first portion, so as to cool said first portion, and from said first portion, so as to lower the pressure therein by entrainment of gas therefrom to the vapor pressure of the liquid at said first temperature; a source of untreated liquid under atmospheric pressure and at a second, higher temperature, said source disposed at a height lower than said height at which said second portion of said condensation chamber is disposed; closed input means connected to said source and to said second portion of said chamber, for enabling flow of untreated liquid and vapor thereof, at a second, higher temperature, to a height above said apogee of said output means and into said second portion, and for enabling gravity drain of unvaporized, untreated liquid from said second portion to the level of said source, to maintain the pressure in said second portion at the vapor pressure of said liquid corresponding to said second temperature, whereby migration of vapor from said second portion to said first portion lowers the pressure in said second portion to the vapor pressure of said liquid at said second temperature, at which pressure said flow in said input means is caused by said atmospheric pressure on said source; and means driven by said gravity drain for actuating said pumping means.