Industrial water chillers are used in the cooling of plastic processing machinery forming molds, which can greatly improve the surface finish of plastic products, reduce surface marks and internal stress of plastic products, make the products do not shrink or deform, facilitate the demolding of plastic products, and accelerate product shaping, thereby Greatly improve the production efficiency of plastic molding machines. The condenser heats up while the refrigerant inside is liquefied, and then flows into the evaporator to evaporate. When it evaporates, it receives heat to cool down the sulfuric acid (tank liquid) in the cold gun. The cooled sulfuric acid is transported to the electroplating (oxidation) by the water pump. ) Trough, this is a cycle of direct freezing of industrial chillers. Cooling speed is fast.
The cooling principle of cold water indirect freezing in the injection molding and electroplating (oxidation) industries is that the water in the bottom basin of the cooling tower is delivered to the condenser of the chiller through a water pump to cool the condenser. Water chiller is a kind of cooling water equipment that can provide constant temperature, constant current and constant pressure.
The temperature of the return water of the chiller should not be higher than 40 degrees. The higher the return water temperature, the greater the damage to the compressor. The choice of screw chiller should be considered in accordance with the cooling load and usefulness. For refrigeration systems with long periods of time under low-load operating conditions, multi-head plug compressors or screw compressors should be selected for easy conditioning and energy saving. When it flows back into the cooling tower and sprays down, the water is cooled by the fan on the top of the cooling tower, and then flows back to the bottom basin of the cooling tower, and it runs again and again.
The condenser radiates heat while the refrigerant inside is liquefied, and then flows into the evaporator to evaporate. When evaporating, it needs to receive heat, so as to cool the water in the water tank. The cooled water is delivered to the heat exchanger through a water pump (separated by the side, Sulfuric acid at the same time as water), and then through the process of heat transfer, the temperature of the sulfuric acid is lowered, which is a recurring process. The advantage of this product is the convenience of the installation, the service life is definitely longer than that of direct freezing, and the acid and alkali are not perishable to the chiller. But the cooling rate is not as fast as direct freezing.