What Is the Working Principle of Refrigeration Equipment?

Refrigeration equipment refers to the equipment mainly used for crew food refrigeration, various cargo refrigeration, and cabin air conditioning in hot weather. It is mainly composed of a compressor, expansion valve, evaporator, condenser, accessories, and pipelines.

According to the working principle, refrigeration equipment can be divided into compression refrigeration equipment, absorption refrigeration equipment, steam jet refrigeration equipment, heat pump refrigeration equipment, electrothermal refrigeration devices, etc. Currently, compression refrigeration equipment is widely used on ships. Through the working cycle of the equipment, the heat of objects and their surroundings is removed, creating and maintaining a certain low - temperature state.

Refrigeration equipment is a device that combines a refrigerating machine with facilities that use cold energy. The design and construction of refrigeration units are aimed at effectively using cold energy to refrigerate food or other items, conduct product performance tests and scientific research tests at low temperatures, achieve certain cooling processes in industrial production, or carry out air conditioning.

When items are cooled or frozen, they release a certain amount of heat, and the enclosure structure of the refrigeration unit also allows a certain amount of heat to penetrate during use. Therefore, to maintain the low - temperature conditions in the refrigeration unit, a refrigerating machine is installed to continuously remove these heats, or the melting of ice or the sublimation of dry ice is utilized to absorb these heats.