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Freezing equipment is widely used in industrial cryogenic processing. When choosing the right freezing equipment, users need to have a basic understanding of common cooling principles, so as to avoid feeling confused and not knowing anything during the purchase process. The so-called freezing in refrigeration equipment refers to the process of cooling products from room temperature to a specific temperature using the cold generated by refrigeration. Refrigeration is the process of creating a low-temperature environment by utilizing the change in the physical state of a refrigerant to produce a cooling effect. There are various types of refrigeration methods used in refrigeration equipment; common ones include piston-type, screw-type, and centrifugal refrigeration compressors. Refrigeration equipment utilizes a refrigeration compressor, condenser, expansion valve, and evaporator to achieve a cooling cycle. During this process, the refrigerant in the equipment absorbs heat when it is in a low-temperature, low-pressure liquid state; once it reaches its boiling point, it evaporates into a low-temperature, low-pressure vapor. The vaporized refrigerant becomes a high-temperature, high-pressure gas under the action of the compressor. This high-temperature, high-pressure gas then condenses into a high-pressure liquid, which, after passing through the expansion valve, turns into a low-pressure, low-temperature liquid. By absorbing more heat and evaporating again, this cycle is completed, thus forming the refrigeration cycle of the equipment. After understanding the cooling principle of refrigeration equipment, it is also necessary to be aware of some other related principles. The cooling capacity of refrigeration equipment refers to the amount of heat that can be removed from the material being cooled per unit of time, under certain operating conditions (i.e., specific evaporation temperature, condensation temperature, and subcooling temperature of the refrigerant). Also known as the cooling capacity of the refrigerant. A refrigerant is a working substance that circulates continuously in refrigeration equipment to achieve cooling. In vapor-compression refrigeration systems, heat transfer is accomplished through the phase changes of the refrigerant, and it is an essential substance for achieving artificial cooling. Guanya now uses environmentally friendly refrigerants. In refrigeration equipment, the coolant transfers the cold energy generated within the evaporator of the refrigeration system to the objects being cooled; it then takes in heat from those objects and passes it on to the refrigerant, thus enabling the coolant to cool down again and be reused in this cycle. Have everyone grasped the key points regarding these freezing equipment and their cooling processes? Once you understand them, go ahead and buy them right away!