Application of Industrial Chillers in Electroplating and Electrophoretic Oxidation Industries

        For electroplating, electrophoretic coating, electroplating production lines, anodizing, etc., they are all aimed at cooling the electroplating solution inside the electroplating tank. How to choose a chiller. There are two cooling methods, direct cooling and indirect cooling.

        The refrigeration principle of water-cooled chillers directly freezing in the electroplating (oxidation) industry: The water from the bottom basin of the cooling tower is transported to the condenser of the industrial chiller through a water pump to cool the condenser, and then flows back into the cooling tower for spraying. When the water is cooled by the fan on the top of the cooling tower, it flows back into the bottom basin of the cooling tower, and thus operates repeatedly. At the same time as the condenser dissipates heat, the refrigerant inside liquefies and flows into the evaporator inside the cold gun for evaporation. During evaporation, heat is absorbed, which cools down the sulfuric acid (tank liquid) in the cold gun. The cooled sulfuric acid is transported to the electroplating (oxidation) tank through a water pump, which is a cyclic process.

        The refrigeration principle of water-cooled chillers for indirect freezing in the electroplating (oxidation) industry: The water in the bottom basin of the cooling tower is transported to the condenser of the chiller through a water pump to cool the condenser. When it flows back into the cooling tower and sprays down, the water is cooled by a fan on the top of the cooling tower, and then flows back into the bottom basin of the cooling tower, running in a cycle. At the same time as the condenser dissipates heat, the refrigerant inside liquefies, and then flows into the evaporator in the water tank for evaporation. During evaporation, heat is absorbed, which cools the water in the water tank. The cooled water is transported to a heat exchanger (separated by a water pump, where one side is water and the other is sulfuric acid), and then the sulfuric acid is cooled through heat transfer. This is a cyclic process. The advantage of this product is that it is easy to install, has a relatively longer service life compared to direct freezing, and is less prone to acid and alkali corrosion of the chiller. This type of chiller usually has a closed plate heat exchanger.

        In addition to such indirect cooling, another method is to use coils inside the electroplating tank, and then the chilled water provided by the industrial chiller is circulated in the coils to cool the electroplating solution. In this way, a regular chiller can meet the requirements. www.jiashengsz.com