Patent ID: 6606881
Filing Date: 2003-08-19
Classification: F25B,Y02A,Y02B

Abstract:
A filter system for filtering contaminants from an absorption apparatus, wherein the absorption apparatus circulates a solution whose concentration varies from being a weak solution at a first point, a stronger solution at a second point, and an intermediate solution at a third point, the filter system comprising:a filter housing defining a filter inlet and a filter outlet; a first inlet line coupling the filter inlet to the first point to convey the weak solution to the filter housing; a second inlet line coupling the filter inlet to the second point to convey the stronger solution to the filter housing, whereby the weak solution mixes with the stronger solution to produce the intermediate solution; a filter element disposed inside the filter housing, wherein the filter element has a porosity that is sufficiently fine to filter the contaminants from the intermediate solution upon the intermediate solution passing through the filter element; a discharge line connecting the filter outlet to the third point to convey the intermediate solution from the filter housing to the third point; and a flow restriction disposed in the first inlet line to ensure that solution flow through the first inlet line is less than solution flow through the second inlet line.