What is the principle of the refrigerating function of the water dispenser?
When 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.
There are electronic refrigeration and compressor refrigeration!!!! The compressor is needless to say! Classified according to refrigeration methods can be divided into electronic refrigeration and compression mechanism, cold type of two categories, and each category is divided into desktop and vertical water dispenser. Electronic refrigeration water dispenser adopts semiconductor component refrigeration, also called half body refrigeration water dispenser. It has the characteristics of small power consumption, low operating noise, no pollution, automatic control and low price. The disadvantage is that the refrigeration speed is slow, the supply of cold water is less, and it is suitable for families and units with less drinking water. Compressor refrigeration water dispenser and refrigerator refrigeration principle is same, different evaporator around stainless steel water tank wall, heat absorption water cooling, the cooling capacity of about 3L, the cooling power in between 75 and 110W, has the characteristics of high reliability, high cooling efficiency, cooling speed, water supply and so on, the the refrigeration performance is significantly better than the electronic cooling water machine, but the price is expensive, suitable for drinking a large number of families and units.
Thermoelectric refrigeration, also called thermoelectric refrigeration or semiconductor refrigeration, is a refrigeration method using thermoelectric effect.The bismuth antimonide semiconductor material made of N type and P type thermocouple, with the method of module.N material type semiconductor refrigeration device with excess electrons, negative potential temperature.P type electronic materials shortage, there is the potential temperature; when the electrons passing through the node to N from P, the amount will increase and increase the energy equivalent to the energy consumption of nodes. On the contrary, when the flow of electrons from N type to P type material, the temperature will rise. NodeExperiments show that the introduction of third kinds of materials in thermal circuit (copper wire and connector) will not change the characteristics of the circuit. Thus, semiconductor components may be connected with different kinds of methods meet the requirements of users. It is a P type semiconductor and N type semiconductor connected thermocouple connected to DC power supply, thermal transfer and the heat in the joints. Some of the will of a semiconductor thermocouple connected in series circuit, and the heat transfer is parallel, which constitute a common thermoelectric refrigeration reactor.
