1. The tank immersed evaporator is used in the open circulation system of non-volatile coolant. This type of evaporator is the only preferred type for a production process in which ice is made from salt water. For chiller refrigeration systems that cool or freeze bagged food in brine and concentrated spray air conditioning, tank immersed evaporators can also be used. Yuyao air cooler, Cixi air cooler

2. The corrosion of ferrous metals by salt water is very strong, and its corrosion is more severe when it comes into contact with air. Therefore, as far as the production process permits, closed loops should be used as much as possible. For volatile refrigerant circulation systems, a closed cycle must be used. In both cases, the use of a horizontal shell and tube evaporator for the chiller is the best choice.

3. When the industrial chiller adopts the water tank immersed or shell-and-tube evaporator, the working temperature of the brine should be about 5 °C higher than the refrigerant evaporator temperature, and the freezing point of the brine should be lower than the refrigerant evaporation temperature. ~ 8 ° C (5 ~ 6 ° C for the tank immersed evaporator, 6 ~ 8 ° C for the shell and tube evaporator).

4, the choice of cooling pipe and cooling fan: For the cold storage, the cooling fan is usually used to increase the cooling temperature. For the freezing of the small cold storage, the shelf type pipe or the wall pipe plus the top pipe can be used. For the cold storage to prevent the air from drying, the wall pipe or the top pipe is usually used. If there is no cold storage problem, the air cooler is generally used.

5. For the evaporator of industrial chillers with lower evaporation temperature, attention should be paid to the influence of the height of the refrigerant liquid column on the evaporation temperature of the chiller. The lower the evaporation temperature, the greater the influence of the liquid column. Therefore, certain measures should be taken to reduce the height of the liquid column in the evaporator.