Characterization of fluid misting

G - Physics – 01 – N

Patent

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Details

G01N 33/28 (2006.01) G01N 33/00 (2006.01) G01N 33/30 (2006.01)

Patent

CA 2272636

A method and apparatus for measuring a misting property of fluids, the method and apparatus simulating mist generation of fluids in machining processes. Fluid is supplied to mist generating means in an enclosure and energy input to the fluid by the mist generating means is controlled. Mist laden gas flows from the vicinity of mist generation to a mist concentration measuring means. Droplets of relatively large mass are removed from the mist prior to the flow of gas reaching the mist concentration measuring means. To further simulate machining processes, the fluid of interest is recirculated from a reservoir through the mist generating means. Mist concentration measurements produced under the same conditions for fluids of different compositions are compared to characterize the misting properties of fluids.

La présente invention concerne un procédé et un dispositif de mesure des propriétés de formation de fluides en brouillards, le procédé et l'appareil impliquant une simulation de nébulisation de fluides dans des processus d'usinage. Le procédé consiste à amener un fluide à un générateur de brouillard situé dans un enceinte, l'énergie apportée au fluide par le générateur de brouillard faisant l'objet d'une régulation. Un gaz chargé de brouillard circule du voisinage de la formation du brouillard vers un organe de mesure de concentration du brouillard. Les gouttelettes de masse relativement importante sont supprimées du brouillard avant que le courant de gaz n'atteigne l'organe de mesure de concentration du brouillard. Pour la suite de la simulation du processus d'usinage, le fluide considéré circule en boucle depuis un réservoir en passant par le générateur de brouillard. Une comparaison des mesures des concentrations de brouillards produites sous les mêmes conditions pour des fluides de différentes compositions permet de caractériser les propriétés de formation des fluides en brouillards.

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