DEVICE AND METHOD FOR REGULATING THE CONCENTRATION OF A TREATMENT CHEMICAL INSIDE A LIQUID BEARING SYSTEM

摘要

The invention relates to a method for regulating the concentration of a treatment chemical inside a liquid bearing system, wherein the presence of the treatment chemical inside the liquid bearing system is defined by an dwell time. The manipulation of the concentration of the treatment chemical inside the liquid bearing system is determined after a time interval and the time interval corresponds to the dwell time. The concentration of the treatment chemical is manipulated by feeding freshwater and/or treatment chemicals, wherein the feeding rate of the fresh water and/or the treatment chemical is changed as soon as scaling, fouling and/or corrosion is detected. The deposit may be measured by a device for detecting deposit (8), said device comprising an ultrasonic transducer for emitting an ultrasonic emission signal (20), a detections means for detecting an ultrasonic reflection signal (21) and/or a heating means.