There are various salts dissolved in natural water, such as bicarbonate, carbonate, sulfate, silicate, etc. When natural water is used as supplementary water and enters the circulating water system, it undergoes evaporation and concentration, resulting in an increase in ion concentration in the water, especially bicarbonate, which is the main component responsible for scale adhesion in cooling water.  Ca﹙HCO3﹚2→Ca CO3↓+ CO2+H2O
When the cooling water is sprayed downwards through the cooling tower, the free CO2 gas dissolved in the water escapes, which promotes the above reaction to proceed in the positive direction. As a result, the CaCO3 precipitate adheres to the heat transfer surface of the heat exchanger, accumulating and forming dense carbonate scale, which reduces the heat transfer performance of the heat transfer surface. Different types of scale have different thermal conductivity coefficients, but generally do not exceed 1.16KW/m · k. It can be seen that scale will inevitably cause a decrease in heat transfer in the heat exchanger. The adhesion of scale poses a great threat, and in mild cases, it reduces the heat transfer efficiency of the heat exchanger, affecting production; Heavy blockages in pipelines can affect safety production.

Solution: Add high-efficiency corrosion and scale inhibitor PO-600 to hinder and damage the normal growth of inorganic salt nuclei such as calcium carbonate and magnesium carbonate, slow down the production rate of crystals, and reduce the formation of salt scale. The scale inhibitor forms water-soluble complexes or chelates with Ca2+, Mg2+, etc., thereby increasing the dissolution rate of inorganic salts and playing a scale inhibition role, making it less likely to deposit on metal surfaces.