Patent ID: 7416642
Filing Date: 2008-08-26
Classification: B01D,C12G

Abstract:
1. Installation for cooling by evaporation of a liquid, comprising: a vat; at least two condensers; at least one control valve, at least one variably positioned shutter element and a vacuum pump; said vat comprising an inlet, an outlet, a first compartment and a second compartment, wherein said first compartment is positioned above said second compartment and a dividing wall is arranged between said first compartment and said second compartment, wherein said at least one variably positioned shutter element is present in said dividing wall and accommodates liquid communication between the first compartment and the second compartment when the shutter element is in an open position, said inlet being connected to said first compartment, said outlet being connected to said second compartment, wherein each of said compartments is connected to a respective one of the condensers and each of said condensers is connected to a common vacuum pump, wherein each of the respective connections between said compartments and said condensers comprises at least one of said at least one control valve, wherein said control valve is adapted to adjust a pressure in each condenser to a pressure lower than the saturation vapor pressure corresponding to the temperature of the vapor created in said condenser, wherein said at least one variably positioned shutter element changes position between an open and closed position based on a level of liquid present in said first compartment and said changing of position results in a reduction of pressure within the first compartment and the second compartment.