Compression Refrigerated Water Dispenser

When the refrigeration switch of the compression-type refrigeration water dispenser is pressed, the refrigeration green indicator light is on, and the compressor starts to run, sucking back the refrigerant vapor that has absorbed heat and vaporized in the evaporator, and then compresses it into a high-temperature, high-pressure gas, and sends it to the condenser. The condenser, through the condenser, radiates heat to the outside air and condenses into a high-pressure liquid, and then flows into the evaporator through the capillary throttling and reducing the pressure, absorbing the heat of the cold gallbladder to lower the water temperature, and then sucked back by the compressor. This cycle achieves the purpose of cooling down.

Automatic Water Filter Dispenser W2907-3F

When the water temperature drops to the set temperature over time, the contact of the refrigeration thermostat is disconnected, the green indicator light of the refrigeration goes out, the compressor stops, and it enters the heat preservation working condition. After the power is turned off, the water temperature gradually rises. When it reaches the set temperature, the contact action of the refrigeration thermostat is closed, the green indicator light is on when the power is turned on, and the compressor is running. Circulate in this way to control the water temperature between 4-12°C.

Press the heating switch, the heating circuit is connected, the red heating indicator light is on, and the electric heating tube generates heat. When the temperature specified by us is reached, the thermostat will automatically reset, the power supply will be cut off, the red heating indicator light will go out, and it will enter the heat preservation working condition. After the power is cut off, the water temperature drops gradually. When the temperature drops to the set temperature, the contact of the thermostat closes, the power is turned on, the red heating indicator lights up, and the electric heating tube heats up again. Circulate in this way to control the water temperature between 85-95°C.

The fuse temperature fuse and manual reset thermostat in this type of water dispenser are protection devices. When the circuit is overheated or overloaded, it will automatically fuse or disconnect the circuit, which plays a role in safety protection.

Air-cooled refrigeration water dispenser

Air cooling is a kind of cooling method, which uses air as a medium to cool the object to be cooled. Usually, it is to increase the surface area of the object to be cooled, or to speed up the rate of air flowing through the object per unit time, or to share the two methods. The former can be achieved by adding heat sinks to the surface of the object. Usually, the heat sink is hung outside the object or fixed on the object to make heat dissipation more efficient. The latter can use a fan (fan) to enhance ventilation and enhance cooling effect. In most cases, the cooling efficiency can be greatly improved by adding heat sinks.

In any case, the air used must be lower than the temperature of the object and its surface to take away the heat. This is due to the constraints of the second law of thermodynamics, that is, it is impossible to transfer heat from a low-temperature object to a high-temperature object without causing other Variety.