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Cooling methods and differences of industrial chillers

Update:07-04-2022
Summary:

The refrigeration principle of cold water direct freezi […]

The refrigeration principle of cold water direct freezing in the electroplating (oxidation) industry is that the water in the bottom basin of the cooling tower is transported to the condenser of the chiller through the water pump to cool the condenser, and then flows back into the cooling tower to spray down through the top of the cooling tower. The fan on the top cools the water and flows back to the cooling tower bottom basin. At the same time, the cooling medium in the condenser is liquefied, and then flows into the evaporator for evaporation, and heat is absorbed during evaporation, so as to cool the sulfuric acid (tank) in the cold gun, and the cooled sulfuric acid is transported to the electroplating (oxidation) ) tank, which is a cycle process of direct freezing of industrial chillers. Cool down fast.
The refrigeration principle of cold water indirect refrigeration in the injection molding and electroplating (oxidation) industries is that the water in the bottom basin of the cooling tower is transported to the condenser of the chiller through the water pump to cool the condenser. When it flows back into the cooling tower and sprays down, the water is cooled down by the fan on the top of the cooling tower, and then flows back to the bottom basin of the cooling tower, and the operation is repeated. The condenser dissipates heat while the refrigerant inside is liquefied, and then flows into the evaporator for evaporation. When evaporating, it absorbs heat, thereby cooling the water in the water tank. The cooled water is transported to the heat exchanger through the water pump. Sulfuric acid on one side of water,), and then through the process of heat transfer, the sulfuric acid is cooled down, which is a cycle process. The advantage of this product is that it is easy to install, has a relatively long service life, and is not easy to corrode the chiller by acid and alkali. But the cooling rate is not as fast as direct freezing.
It can be seen from the above that the direct cooling of industrial chillers is slightly better than that of indirect refrigeration in terms of cooling speed, but it is obvious that the direct refrigeration chiller is not as safe as the indirect refrigeration chiller, and the equipment of the former is easy to corrode and has a relatively long life. short. However, compared with the service life of the two, the indirect refrigerated chiller is several times longer than the direct refrigerated chiller, and the value of the indirect refrigerated chiller can be calculated from this.

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