Feed back control deposit inhibitor dosage optimization system

A method of correcting for scale former which is deposited on the inside walls of a water container through which water is flowing at a predetermined temperature comprising:

• a. connecting to the container a conduit for withdrawing a sample of the water, the conduit having a conduit wall;
• b. attaching to the conduit wall a heat generator to maintain the skin temperature of the inside of the conduit wall at a temperature which stimulates scale deposit at the conduit wall immediately adjacent said generator;
• c. operating the heat generator so as to maintain the temperature of the inside of the conduit wall at a temperature which stimulates scale deposit over a period of time in excess of five hours;
• d. measuring over a period of time in excess of five hours the heat transfer through said conduit wall and monitoring the thickness of said scale deposit;
• e. analyzing the measured heat transfer through said conduit wall and said scale deposit to determine whether the monitored scale thickness exceeds a set of predetermined parameters indicative of scale formation;
• and
• f. introducing into the container through which the water is flowing a dosage of scale inhibitor which, based upon the analysis of heat transfer through said conduit wall as measured in step d, is determined sufficient to inhibit further formation of scale deposit in said water.

A system for correcting scale former which is deposited on the inside walls of a water container through which water is flowing in a circulating water system at a predetermined temperature, the system comprising:

• a. at least one sensing unit for sensing heat transfer rate or heat transfer resistance through a contact surface which is in contact with the water in said circulating water system;
• b. a deposit monitor station for monitoring the heat transfer rate or heat transfer resistance through said contact surface by periodically measuring at predetermined time intervals the amount of heat transfer rate or heat transfer resistance being sensed by said sensing unit and generating an electrical data signal corresponding to the measured amounts;
• c. an electrical connection between said at least one sensing unit and said deposit monitor station for providing communication therebetween and for transmitting said electrical data signal corresponding to the heat transfer rate or heat transfer resistance being sensed and transmitting said electrical data signal to said deposit monitor station;
• d. a first temperature modulator to maintain one area adjacent to said contact surface at a temperature which stimulates scale deposit of the scale former on said contact surface;
• e. a recording and processing means for recording the electrical data signal received by said deposit monitor station and analyzing said electrical data signal record to determine whether said analyzed electrical signal, corresponding to the heat transfer rate or the heat transfer resistance matches predetermined parameters indicative of scale formation in said circulating water system and for calculating a dosage of scale inhibitor determined sufficient to inhibit further formation of scale deposit upon said contact surface;
• and
• f. a means for imparting into the circulating water system the calculated dosage of scale inhibitor deemed sufficient to inhibit further formation of scale deposit on said contact surface as well as on the inside walls of said water container.

A system for correcting for scale former which is deposited on the inside walls of a water container containing a circulating water system through which water is circulating at a predetermined temperature, the system comprising:

• a. at least one sensing unit for sensing heat transfer rate or heat transfer resistance through a contact surface which is in contact with the water in said circulating water system, said sensing unit for generating a data signal corresponding to the heat transfer rate or heat transfer resistance of the contact surface;
• b. a deposit monitor station for monitoring the data signal corresponding to the heat transfer rate or heat transfer resistance and an electrical connection between said at least one sensing unit and said deposit monitor station;
• c. a first temperature modulator disposed adjacent to said contact surface for maintaining the contact surface at a temperature which stimulates scale deposit of the scale former on said contact surface;
• d. a recording means for recording the data signal received by said deposit monitor station, thereby generating a data signal record;
• e. an analysis means for analyzing said data signal record to determine whether the analyzed data signal record, corresponding to the heat transfer rate or heat transfer resistance, matches predetermined parameters indicative of scale formation in said circulating water system and for calculating a dosage of scale inhibitor determined sufficient to inhibit further formation of scale deposit upon said surface;
• and
• f. an activation means for transmitting an activation signal which causes imparting into the circulating water system a dosage of scale inhibitor calculated to inhibit further formation of scale deposit on said surface as well as on the inside walls of said water container.