The chiller is mainly used in the plastic industry. It can accurately control the mold temperature of various plastic processing, shorten the injection molding cycle, and speed up the product shaping, to improve the quality of product, as to make the product department shrink, no distortion, high perspective and high Surface finish. In addition, industrial water chillers are also suitable for electroplating industry, food industry, electronic manufacturing, dyeing industry, Ultrasonic Mechanical Cooling. The utility model has the advantages of convenient operation, excellent quality and novel design, and is an indispensable device in modern industry. Water chillers in the work, according to customer needs to choose its freezing method: direct freezing and indirect freezing. Many customers may not understand this, the following will explain in detail for you. Difference between direct freezing and indirect freezing of water cooled chillers in electroplating industry. The working principle of water-cooled chillers: water-cooled chillers need to be equipped with cooling towers and circulating refrigeration pumps, the water in the basin at the bottom of the cooling tower is sent to the condenser of the water-cooled chiller by circulating a chilled water pump to cool the condenser. It then flows back down the cooling tower, cooling the water through the tower's sprinkler system, and back to the basin at the bottom of the tower, where it runs over and over again. At the same time as the condenser dissipates heat, the refrigerant R22 inside it liquefies and then flows into the evaporator in the water-cooled chiller's tank, which absorbs heat during evaporation, thus cooling the water in the tank, the cooled water is pumped through a circulating water pump to a heat exchanger (separated by water and sulfuric acid) , where it is cooled by heat transfer. The advantages of this chiller is easy to install, longer life than the chiller directly frozen, and acid-base corrosion chiller is not easy. Direct freezing method, water-cooled chillers direct freezing working principle: similarly, water-cooled chillers need to be equipped with cooling towers and circulating chilled water pumps, the water in the basin at the bottom of the cooling tower is delivered to the condenser of the water-cooled chiller by a circulating chilled water pump, which cools the condenser and then flows back down the cooling tower, cooling the water through the cooling tower sprinkler system, and then back to the cooling tower at the bottom of the basin, so that the cycle of operation. At the same time as the condenser dissipates heat, the refrigerant R22 inside the condenser liquefy and then flows into the evaporator for evaporation, which needs to absorb heat, thus cooling the sulfuric acid (bath liquid) . After cooling, the sulfuric acid is transported to the electroplating bath through a water pump, this is the water-cooled chiller in the electroplating industry directly frozen working principle. From the above comparison, the water-cooled chiller direct freezing and indirect freezing have the same use effect, but it is obvious: 1. The direct-frozen chiller is not safe as the indirect-frozen chiller, and the direct-frozen equipment is easy to corrode, the service life of the Chiller is relatively short; 2, the direct freezing chiller is only slightly superior in price, but the price difference is not very big; 3, from the service life of the chiller to compare, indirect chillers are several times longer than direct chillers; the direct or indirect freezing methods of water-cooled chillers are mainly available for specific industry choices, and you don't have to worry too much about them, after all, there are professional sales staff for you to recommend.