Electrochemical circulating water descaling
The electrolytic descaling equipment crystallizes Ca2+ and Mg2+ plasma in the circulating water at the cathode by electrolysis without adding chemical agents, thereby reducing the hardness of the water.
Electrolytic descaling is loaded with direct current through the electrolytic cell device. The heavy metal ions (including scale) in the water will be attached to the surface of the negative electrode in the electrolytic tank of the electrolytic scaling system, and the scale attached to the negative electrode will be removed mechanically on a regular basis, and the water will be discharged outside the circulating water system together with drainage.
During electrolysis, a certain concentration of hydroxide ions and carbonate ions are produced in the cathode region, which promotes the combination of calcium and magnesium ions in water with hydroxide ions and carbonate to form calcium hydroxide, magnesium hydroxide, calcium carbonate and magnesium carbonate, and a large number of them adhere to the cathode shell to form a certain thickness of scale. Because the cathode produces a certain amount of hydrogen, the shell scale is basically loose and soft scale. Therefore, it can be cleaned with a physical scraper and high pressure water rinse.
Application of electrochemical descaling in cooling tower
At the same time, in the reaction area near the anode, chlorine ions lose electrons and transform into free chlorine under the action of electric field, accompanied by the production of trace ozone and hydroxyl radical, which play a good bactericidal and algal killing effect.
At the same time that the scale is continuously removed by the electrochemical water treatment system in advance, the hypochlorite, ozone, hydroxide ions generated in the electrical process have the bactericidal and algal killing effect and do not bring the risk of corrosion. The suspended matter (SS) in the cooling circulating water alternately passes through the strong acidic environment and the strong alkaline environment in the reaction chamber of the electrochemical water treatment system, the surface charge is destroyed and unstable, and then deposited to the bottom of the reaction chamber, which is discharged in the process of scaling and washing, so as to reduce the role of suspended matter in the system.
By the same principle, duckweed, oil and other organic matter are oxidized and degraded by the strong oxidant produced by the anode when they are near the anode in the reaction chamber of the electrochemical water treatment system, so as to achieve sterilization and algal removal.
