How freezers work

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Life fireworks, the freezer like a hidden in the daily“Cool magician.”. It stands quietly in a corner, but can block the heat, so that fresh food, Drinks Qinshuang. When we enjoy the cool, have you ever thought, this seemingly ordinary refrigerator, what kind of subtle cooling magic hidden? Everything from the mysterious circulation of refrigerants to the co-ordination of components is a mystery. Today, let us cut through the fog, explore the cheap refrigerator behind the amazing cooling principle, appreciate the technology to give the magic charm of life.

1.Refrigerant cycle

Refrigerants are the energy messengers in the refrigerator's refrigeration cycle. It circulates between the various parts of the freezer, constantly changing form, transferring cold and hot energy. Under the action of the compressor, the refrigerant to low temperature and low pressure gas form, is compressed into high temperature and high pressure gas, into the condenser. In the condenser, it releases heat and condenses from the gas into a high-pressure liquid. Subsequently, the high-pressure liquid through the expansion valve depressurization, low temperature and low pressure into the wet steam, into the evaporator. In the evaporator, it absorbs the heat from the freezer, turns into gas again, returns to the compressor, and starts a new cycle. This cycle repeats itself, like an invisible energy link, constantly carrying the heat from the freezer to the outside.

2.The core role of the compressor

The compressor is the power engine of the refrigerator refrigeration system, which provides continuous power for the whole refrigeration cycle. It is like an indefatigable strongman, will be low-temperature low-pressure refrigerant gas inhalation, through mechanical compression, so that the temperature and pressure of a sharp rise in high-temperature high-pressure gas. This process acts as a powerful injection of energy into the refrigerant, giving it the ability to release and absorb heat efficiently in subsequent cycles. Without the hard work of the compressor, the refrigerant can not circulate in the system and the refrigeration function of the freezer can not be mentioned.

3.Heat dissipation of condenser

The condenser is a vital hub for the refrigerator's heat release. When high-temperature and high-pressure refrigerant gas pours into the condenser, an efficient heat exchange begins. The condenser has a number of carefully designed fins that greatly increase the area in contact with the outside air, allowing more heat to be transmitted. At the same time, the fan continues to run, strong acceleration of air flow, the formation of a good convection environment, further promoting rapid heat dissipation. Under the synergistic effect of the heat sink and the fan, the refrigerant gradually releases heat, cools and condenses from the high temperature and high pressure gas state, and finally transforms into high pressure liquid, which lays a solid foundation for the subsequent step-down and endothermic links.

4.Depressurization of expansion valve

The expansion valve acts as a pressure regulating valve in the refrigerator refrigeration system. When the high-pressure liquid flows through the expansion valve, the expansion valve will accurately control its flow, and make its pressure drop sharply. This depressurization process makes the refrigerant temperature also decreases, into a low temperature and low pressure of wet steam. This low-temperature and low-pressure wet steam has a stronger heat absorption capacity, can be more effective in the evaporator to absorb heat in the refrigerator, so as to achieve refrigeration effect. The precise adjustment of the expansion valve ensures that the refrigerant can absorb heat in the evaporator in the best condition.

5.The evaporator absorbs heat

An evaporator is a cooler-making machine for freezers. Low temperature and low pressure wet steam into the evaporator, will quickly absorb the heat in the freezer, so that the freezer temperature. In this process, the refrigerant gradually evaporates from the wet vapor state into a gas. The evaporator is usually a highly efficient heat exchange structure, which can quickly exchange heat between the refrigerant and the air in the freezer, so that the heat in the freezer can be quickly taken away. Through the endothermic effect of the evaporator, the temperature in the freezer can be maintained at a lower level, providing a suitable low-temperature environment for our stored items.

6.Heat exchange and heat preservation

The refrigeration process of the freezer is essentially a heat exchange process. The evaporator absorbs heat from the freezer and circulates it through the refrigerant cycle to the outside environment. And the thermal insulation material filled between the shell and the inner liner of the refrigerator plays a key role in thermal insulation. These insulation materials like a thick layer of“Cotton-padded coat”, effectively reduce the heat from the outside into the freezer, reduce the energy consumption of the freezer, improve the refrigeration efficiency. This intelligent design of heat exchange and insulation enables the refrigerator to better maintain the low temperature environment inside while saving energy.

Conclusion

Small freezer, is actually the crystallization of scientific and technological wisdom. From the flexible flow of refrigerant cycle, to the coordinated operation of compressor, condenser, expansion valve and evaporator, to the ingenious cooperation of heat exchange and insulation, every link embodies the power of science and technology. It is a low-key posture, for our lives to bring endless convenience and cool, let us feel the charm of technology to change life.