Ion-selection for monitoring and controlling inhibitor concentration in refrigeration- or air conditioning water circulation systems, comprises e.g. adding fluoride-containing inhibitor solution to circulating water, measuring conductivity

摘要

Ion-selection comprises: mixing an inhibitor with fluoride-containing substances such that they dissociate and form a fluoride inhibitor solution, which includes a fluoride ion concentration-based marker for the inhibitor; adding the fluoride containing inhibitor solution to the circulating water; and obtaining a measured and control variable for adding the fluoride-containing inhibitor by a combined conductivity measurement and by adopting ion-selective fluoride measurement, which prevents under- or overdosing of the proposed inhibitor concentration in the circulating water. Ion-selection for monitoring and controlling the inhibitor concentration in refrigeration- or air conditioning water circulation systems, comprises (i) mixing an inhibitor with fluoride-containing substances such that they dissociate and form a defined fluoride inhibitor solution with a mixing ratio in the inhibitor, which includes a fluoride ion concentration-based marker for the inhibitor, where the inhibitor includes active ingredients for corrosion protection and/or hardness stabilizers for the circulating water, (ii) adding the fluoride containing inhibitor solution to the circulating water in a controlled manner, and (iii) obtaining a measured and control variable for adding the fluoride-containing inhibitor by a combined conductivity measurement and by adopting ion-selective fluoride measurement, which prevents under- or overdosing of the proposed inhibitor concentration in the circulating water.