Metering system

Fluid handling – Processes – With control of flow by a condition or characteristic of a...

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137 93, G05D 1108

Patent

active

039878082

ABSTRACT:
The invention concerns a novel automatic metering system for producing a liquor containing a predetermined concentration of at least one component thereof, which comprises a mixing tank in which the liquor components are mixed, a metering device adapted to meter out at least one of the components into the mixing tank, an analyzer adapted to measure the concentration of the component(s) required at a predetermined concentration and a data processing unit, with an input from the analyzer and an output to the metering device, being programmed to effect an operational cycle which comprises computing the deviation of the measured concentration from the predetermined concentration of the component(s), correlating the deviation with the amount of at least one of the components necessary to be metered out, substantially to reduce said deviation by a reduction factor of less than 100 percent, and automatically operating the metering device to meter out the correlated amount, and to repeat said operational cycle until the predetermined concentration has been substantially reached, and a method of operating the system.

REFERENCES:
patent: 2927501 (1960-03-01), Busignies et al.
patent: 3494328 (1970-02-01), Maloney
patent: 3602096 (1971-08-01), Toth

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