Defoamer testing apparatus

Details Defoamer testing apparatus Defoamer testing apparatus

G - Physics

01

N

G01N 13/02 (2006.01) G01N 13/00 (2006.01)

Patent

CA 2179056

A single generally cylindrical foam cell (10) having openings (12, 14) at both ends is provided wherein interchangeable foam cell insert (20) having varied geometry is longitudinally disposed within the foam cell (10). The foam cell insert (20) is provided with a plurality of centralizer walls (22, 22') extending into the foam cell (10) with an agitator member (26) being carried by the centralizer walls (22,22'). Foamable liquid medium is introduced into the foam cell (10) and recirculated therethrough to form a dynamic fluid-flow system. As the liquid medium passes through both the foam cell (10) and the foam cell insert (20) it comes into contact with the agitator member (26) carried by the centralizer walls (22, 22') of the foam cell insert (20) forming foam which accumulates in the foam cell (10). After a sufficient amount of foam is formed, a defoaming or antifoaming agent is introduced into the foam cell (10), and its effect on the level of foam present in the foam cell is measured.

L'invention a pour objet une cellule unique de moussage (10), généralement de forme cylindrique, présentant des ouvertures à ses deux extrémités (12, 14) et dans laquelle est inséré longitudinalement un élément interchangeable (20) de géométrie variée. Cet insert (20) est muni d'une pluralité de parois de centrage (22, 22') qui supportent un agitateur (26) se prolongeant à l'intérieur de la cellule de moussage (10). Le liquide moussant est introduit dans la cellule de moussage (10), puis circule à travers celle-ci en circuit fermé pour former un système dynamique d'écoulement de fluide. Lorsque le liquide traverse la cellule de moussage (10) et l'insert (20), il entre en contact avec l'agitateur (26) supporté par les parois de centrage (22, 22') de l'insert (20), formant ainsi une mousse qui s'accumule dans la cellule de moussage (10). Après obtention d'une quantité suffisante de mousse, on introduit un antimousse dans la cellule de moussage (10) afin de mesurer son efficacité sur le niveau de mousse présent dans la cellule de moussage (10).

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