In heat exchangers, more and more attention has been paid to the treatment of circulating cooling water. It not only adds medicine to the circulating cooling water, but also adopts bypass filtration and softening treatment. Even the supplementary water has been filtered and softened by high efficiency filter. The side stream filtration improves the water quality of circulating cooling water in an all-round way, and greatly improves the safety and economy of operation.
It has been thought that the increase of circulating cooling water treatment equipment and process will improve the safety of operation, but it is believed that the operation cost will be greatly increased because of the increase of one investment and operation cost. In fact, the increase of equipment and process of circulating cooling water treatment not only improves the safety of operation, but also improves the economy of operation. This is because side stream filtration improves the quality of circulating cooling water, reduces sewage discharge, reduces the amount of supplementary water, improves the concentration ratio, reduces the dosage, and more importantly, improves the quality of water and improves the corrosion of the system. Scaling and microbial breeding have obvious protective effects on equipment, prolonging the service life of equipment and reducing the maintenance, maintenance and replacement costs of equipment.