A cold storage evaporator is an evaporator used in refrigeration equipment such as cold storage. Its principle is that a low-temperature and low-pressure liquid refrigerant vaporizes and absorbs heat on one side of the evaporator's heat transfer wall, thereby cooling the medium on the other side of the heat transfer wall. The cooled medium is usually water or air.

Air cooler evaporator

Advantages: The cold air fan mainly relies on convective heat transfer, which is easy to construct and compact in structure. It occupies small space in the cold storage and has little impact on the usage space of the cold storage. There is no requirement for the load bearing on the top of the warehouse, which is common in the assembly cold storage and small Freon cold storage. High heat exchange efficiency, reduced use of materials, reduced costs, forced circulation of air by fans, and faster cooling speed in cold storage. Defrosting is convenient and easy to control, capable of automatic control, easy to operate, and easy to manage. Generally, copper tubes and aluminum fins are used in the market, which have high pressure resistance, strong corrosion resistance, and are not easy to leak.

Disadvantages: Due to the forced circulation of the fan, the air flow in the cold storage is fast, and the food in the cold storage is easy to air dry, resulting in high drying consumption of inventory goods. Moreover, the fan itself consumes electrical energy, and the evaporator also needs to defrost frequently. Most small and medium-sized cold storage rooms use electric heating wires to heat the capacity for frost. This periodic defrosting operation of the cold air fan not only causes energy waste, but also causes an increase in the temperature inside the warehouse.

evaporative cold storage pipes

Advantages: The advantage of aluminum exhaust is that it has an advantage in cold storage capacity compared to a fan, without the need for a fan, and is more energy-efficient. Moreover, the dry consumption of food is low, and the pressure resistance of the exhaust pipe is high.
Disadvantages: It occupies a large space and, in some cases, affects the usage area. It mainly relies on radiation heat transfer and does not require a fan. The cooling process is slower than that of a fan, and the defrosting cycle is longer after frost formation, usually twice a year. Defrosting can be done by sweeping frost, thermal fluorination frost, etc. The defrosting water is not easy to treat. The aluminum platoon is generally not a seamless pipe. Due to the microscopic Thermal expansion, it is easy to leak over a long period of time, and its own heat exchange efficiency is low, so the initial investment is large. Aluminum bars are suitable for use at freezer temperatures, otherwise condensation water may be generated and affect the working environment.