JPS56147620A - Method and apparatus for regulating concentration - Google Patents

Abstract

PURPOSE: To regulate the concentration of fluid with only necessary energy, by sending the whirled fluid, a mixture of fluids having mass difference, into the concentration regulating chamber wherein the pressure and velocity are regulated correspondingly to the distribution of concentration, and by discharging the regulated fluid.

CONSTITUTION: A mixture comprising fluids having different masses is sent from the inlet pipe 7 through the feed chamber 8 to the impeller 2. Wherein the fluid receives the energy of this impeller 2 and becomes a high-speed whirling fluid which then flows toward the chamber 10. In this chamber 10, the fluid builds up a pressure distribution having a great gradient in the radial direction owing to the centrifugal force of the high-speed whirling flow so that the inside of the chamber 10 becomes low pressure. Hereby, the part having larger mass of the mixed fluid exists in rich in the outer side and the part having smaller mass exists in rich in the inner side. Then the rotational velocity of the impeller 2 and the strength of the whirling flow of the chamber 10 are adjusted in order to regulate the concentration of the mixed fluid. After that, the energy of the fluid is again recovered and is used for driving the impeller 2.

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