How does a water cooler work? Is it the same principle as the refrigerator?
Semiconductor direct cooling hot and cold water dispenserSemiconductor direct cooling type drinking water machine in use, direct cooling type water dispenser with tepid water from the water tank, the water is divided into two lines: one way into the cold container, after cooling cold water; another way into the hot pot, heated by hot water.Press the switch after cooling, AC voltage by the power transformer step-down, rectifier diode for full wave rectifier and capacitance filter, the output DC voltage for the semiconductor refrigeration component cooling and exhaust fans, at the same time, the refrigeration indicator lights. Since the direct cooling hot and cold water dispenser is not equipped with automatic temperature control, the cooling indicator lamp is always on when the power is turned on.
There are two kinds of water cooler, the semiconductor value of cold and compression refrigeration, in which the principle of compression refrigeration, basically the same as the refrigerator, but the structure is simple.
Compression type refrigerating drinking water machineWhen you press the compression refrigeration water dispenser refrigeration refrigeration switch, the green light will start running, the compressor, the refrigerant vapor in the evaporator is endothermic gasification sucked back, and then compressed into high temperature and high pressure gas, sent to the condenser, the condenser to the outside air cooling condensed high pressure liquid, then by capillary throttling flow into the evaporator in the cold and heat absorption of bile the temperature dropped, then being sucked back into the compressor. This cycle, to achieve the purpose of cooling. When the water temperature drops to the set temperature with time, the contact point of the refrigeration temperature controller is switched off, the refrigeration green indicator lamp goes out, the compressor stops and transfers to the thermal insulation condition. After the power failure, the water temperature rises gradually. When the temperature rises to the set temperature, the contact of the refrigerating thermostat is closed, the power supply is switched on, the green indicator light is on, and the compressor runs. In this way, the water temperature is controlled between 4-12 degrees centigrade.
