Nowadays, many air conditioners are used for both heating and cooling. They can also be used for cooling and heating. They provide great convenience for our life. We don’t know if we know the principle of air conditioning. What is the principle of air conditioning ? The following decoration home decoration network Xiaobian will bring you the analysis of the principle of air conditioning refrigeration and heating, I hope to be helpful to everyone.
What is the principle of air conditioning?
Air conditioning principle 1, air conditioning refrigeration principle:
The compressor compresses the gaseous Freon into a high-temperature and high-pressure liquid Freon, and then sends it to the condenser (outdoor unit) to become a normal-temperature high-pressure liquid Freon, so the outdoor unit blows out the hot air. The liquid Freon passes through the capillary tube and enters the evaporator (indoor unit). The space suddenly increases and the pressure decreases. The liquid Freon vaporizes and becomes a gaseous low-temperature Freon, which absorbs a large amount of heat and the evaporator becomes cold. The fan of the indoor unit blows the indoor air from the evaporator, so the indoor unit blows out the cold air; when the water vapor in the air encounters the cold evaporator, it will condense into water droplets and flow out along the water pipe. This is Air conditioning will cause water. The gaseous Freon then returns to the compressor to continue compression and continues to circulate. When heating, there is a component called a four-way valve, so that the flow direction of the freon in the condenser and the evaporator is opposite to that in the case of cooling, so when the heating is performed, the outdoor air is blown by the cold air, and the indoor unit is blown by the hot air. In fact, it is the principle of absorbing heat when liquefaction (from gas to liquid) learned in junior middle school physics is to discharge heat and vaporize (from liquid to gas).
Lithium bromide air conditioning refrigeration principle The lithium bromide air conditioning refrigeration principle is specially proposed here. Unlike the compression air conditioner, the working medium used for absorption refrigeration is usually a binary solution composed of two substances with different boiling points. Among them, the low boiling point substance is a refrigerant, and the high boiling point substance is an absorbent. Therefore, the binary solution is also referred to as a refrigerant-absorbent working fluid pair. The so-called binary solution refers to a mixture of two substances that do not interact with each other. The various physical properties of such a homogeneous mixture (such as pressure, temperature, concentration, etc.) are completely uniform throughout the mixture and cannot be separated into the original constituents by pure mechanical precipitation or centrifugation.
The binary solution is heated and boiled in the generator by a heat source to produce a refrigerant vapor that is condensed into a refrigerant liquid in the condenser. The liquid refrigerant enters the evaporator after being throttled by the U-shaped tube, and is sprayed under the low pressure condition by the evaporator, and the liquid refrigerant evaporates to absorb the heat of the refrigerant to generate a cooling effect.
The concentrated solution flowing out of the generator is cooled by the heat exchanger, depressurized, and then flows into the absorber, and is mixed with the original solution of the absorber to become a concentrated solution of intermediate concentration. The intermediate concentration solution is pumped and sprayed by the absorber pump to absorb the refrigerant vapor coming out of the evaporator into a dilute solution. The dilute solution is pumped by the generator to the generator, and the refrigerant vapor is again generated by the heat source to form a concentrated solution again, and the next cycle is entered.
Air conditioning principle 2, air conditioning heating principle:
Heat pump heating uses a compression condenser of the refrigeration system to heat the indoor air. When the air conditioner is in the cooling operation, the low-pressure refrigerant liquid evaporates and absorbs heat in the evaporator, and the high-temperature high-pressure refrigerant releases heat and condenses in the condenser. Heat pump heating is through electromagnetic reversal, the position of the suction and exhaust pipe of the refrigeration system is reversed. The indoor coil of the original refrigeration working evaporator becomes the condenser at the time of heating, so that the refrigeration system absorbs heat outside the room and releases heat to the room to achieve the purpose of heating.
Air conditioning is actually controlled according to the thermal expansion and contraction of the medium. The part of the room is cold shrinking, the outdoor is thermal expansion, and how to swell, that is, the work is done by compressing the medium of the compressor, which will produce a lot. The heat, not the thermal expansion, and then through a capillary and then passed to a much larger space, so the pressure of the medium is suddenly a lot lower, this is the cold shrink heat, all of a sudden the heat exchange of the room It is a cold gas.
The above is the principle of air conditioning brought to you by Xiaobian? The whole content of the air conditioning refrigeration heating principle analysis, I believe that everyone has a basic understanding of the air conditioning principle after reading this article, if you want to know more decorative advice, please click to enter the decorative knowledge channel.
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