Scaling problem in fresh water
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Hello everyone. Our unit uses softened water and fresh water for heat exchange; the temperature of the fresh water is maintained between 60 and 70 degrees, and its flow rate is around 15 t/h. The heat exchanger and pipelines tend to develop scale after about ten days. Do you have any suggestions on how to deal with this? The flow rate is regulated across the entire plant and cannot be adjusted arbitrarily; our current measure is to reduce the temperature of the fresh water after it has been treated.
The design temperature of cooling water in use generally does not exceed 45 degrees, with a return water temperature of 40–42 degrees being commonly used to prevent scaling.
Reply to 2# cl6119: The fresh water we use is intended for bathing in residential areas, so the temperature cannot be too low