Industrial Evaporator Coils are evaporator coils, also known as cooling coils or platoons, which are widely used in small cold storage. The evaporator coil directly exchanges heat with the air outside the tube, and the air performs natural convection by the temperature difference. However, when some cold storages use evaporative coils, in order to increase the intensity of convection heat transfer and make the temperature of the cold storage more uniform, a circulating fan or a hanging air cooler is directly used in the cold storage to increase the air convection in the storage.
Commonly used evaporation coils are smooth tubes or finned tubes. Ammonia refrigeration devices use steel pipes to wind fins, and Freon refrigeration devices mostly use copper pipes to wind fins or sleeves. According to the specific conditions of the cold storage, the evaporative coil has two types of installation: top coil and wall coil. Generally, wall coils are used in the cold room of cold storage. Except for a very small number of ammonia refrigeration devices that use vertical tubes, they all use horizontal serpentine wall coils with simple structure and easy installation and maintenance. In order to make the lubricating oil carried by the refrigerant in the coil return to the compressor smoothly, it is generally necessary to enter the liquid from the upper part of the coil and return the air from the lower part.
Sometimes in order to improve the cooling effect of the evaporator coil, a double-pass evaporator coil is used. The evaporating coils are all designed according to the specific requirements of the cold storage, but they are more symmetrical rectangular structures. The wall coil or top coil is parallel to the wall or top surface, and a certain distance (about 100mm) is reserved. There is also a certain distance between the wall coil and the cold storage floor (not less than 300mm) to facilitate the natural convection and heat exchange of the air.