Do you know the cooling principle of the water dispenser

Ordinary water dispensers are cooled by semiconductor refrigeration components, and some high-end water dispensers are cooled by compressors. At present, most of them are cooled by semiconductor refrigeration components. Low-end drinking fountains do not have cooling equipment, and cold water flows directly from the drinking bucket. The electronic refrigeration of the water dispenser uses the ice container of the semiconductor electronic refrigeration as the refrigeration source. 1. The ice tank has a water inlet and a water outlet on the parting line, a square cooling fan on the rear side, and a circuit control board. Its advantages, high price, low price, no noise, no pollution, so that the cost of drinking fountains will be greatly reduced, and it occupies a considerable share of the market for medium and low-end drinking fountains.

How is the water dispenser cooled? Is it the same principle as the refrigerator?
1. The principle is different; 2. The principle of the drinking fountain: electronic refrigeration drinking fountain: The refrigeration principle of the electronic cooling drinking fountain is mainly to use the chip for cooling. The water dispenser uses chips for cooling, which has the characteristics of low power consumption, no pollution, and automatic control. However, the only disadvantage of the electronic refrigerated water dispenser during cooling is that its cooling speed becomes slower, and the amount of cold water it supplies is also very high. This kind of water dispenser is more suitable for families and units with a small number of people. Compression refrigeration water dispenser: The principle of refrigeration of the compression refrigeration water dispenser is that after pressing the refrigeration switch of the compression refrigeration water dispenser, the compressor in the water dispenser will automatically start to vaporize the refrigerant in the evaporator after it has absorbed heat Suck it back, then compress it into a high-temperature and high-pressure gas and send it to the condenser, then pass through the condenser to dissipate heat to the outside air and condense into a high-pressure liquid. After passing through the capillaries of the water dispenser, it is throttled and reduced to the evaporator. , Absorbing the heat of the cold gallbladder to cool down.
3. Refrigerator refrigeration: We know that if we want to reduce the temperature in the refrigerator, we must find a way to continuously move the heat in the refrigerator to the outside of the box, so what is the method? We know that the boiling temperature of water at standard atmospheric pressure is 100°C, that is, water "opens" at 100°C. In the boiling process, water absorbs a lot of heat and changes from liquid to water vapor. Among them, the characteristic of "absorb a lot of heat into water vapor" is very enlightening to us. So we found a substance, "Freon-12", which does not boil at 100°C like water, but can boil and vaporize at a low temperature of about -30°C, and absorb a large amount of it during the vaporization process. Heat. We use this substance as the refrigerant of the refrigerator, let this liquid substance boil and vaporize in the evaporator of the refrigerator, absorb a large amount of heat in the box, and cool down the refrigerator. Moreover, because Freon-12 can boil and vaporize at a low temperature of about -30°C, the temperature in the refrigerator can be reduced to a very low level. For example, the temperature of the freezer compartment of an ordinary double-door refrigerator can be reduced to below -18°C (ie Three-star standard). Refrigerators all use refrigerants, and not all water dispensers use refrigerants.

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