Concentrator

Details Concentrator Concentrator

2005-02-01

2005-02-01

Manoharan, Virginia (Department: 1764)

Concentrating evaporators

Fluid feed or discharge devices

Automatic

C159S045000, C159S901000, C203S001000, C203S003000, C203SDIG009

Reexamination Certificate

active

06849155

ABSTRACT:
This invention provides a concentrator capable of drawing out a concentrate of a constant concentration. The concentrator includes a heater having a heating medium that has been heated to a temperature not less than the boiling point of a solution fed to the concentrator—whereby said heater heats the solution to evaporate the solvent to a vapor to make a mixture of the vapor and a liquid—and a gas-liquid separator for dividing the mixture into the liquid and the vapor. The concentrator provides for returning the liquid separated in the gas-liquid separator to the heater, for drawing out a portion of the liquid separated in the gas-liquid separator, for detecting the concentration of an intended component in the drawn out liquid, and for controlling the liquid draw-out so that when the concentration is above a predetermined threshold, liquid draw-out commences, and when the concentration is below the threshold, liquid draw-out stops.

REFERENCES:
patent: 2732008 (1956-01-01), Seeley
patent: 2798543 (1957-07-01), Cook
patent: 3826719 (1974-07-01), Boyd et al.
patent: 3839159 (1974-10-01), Dannauant et al.
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patent: 4230533 (1980-10-01), Giroux
patent: 5162081 (1992-11-01), Bowes
patent: 6413378 (2002-07-01), Kanauchi et al.
patent: 6508915 (2003-01-01), Osuda et al.
patent: 1419663 (1965-10-01), None
patent: 2564330 (1985-11-01), None

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