Cooling principle of water dispenser
Press the heating switch, heating circuit, heating the red indicator light, the electric heating tube heating, when the water temperature rises to the set temperature, the automatic reset temperature control action, cut off the power supply, heating the red lights out, into the insulation condition. After the failure of the water temperature gradually decreased, when reduced to the set temperature, the thermostat closed contact action connect the power supply, heating, the red indicator light, the electric heating tube heating cycle. So again, the water temperature controlled at 85-95 DEG C.The fuse, temperature fuse and manual reset thermostat are protective devices in this kind of drinking water machine. When the circuit is overheated or overloaded, it automatically fuses or disconnects the circuit and plays a safety role
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. So the cycle, achieve the purpose of cooling. When the water temperature with the time down to the set temperature, the refrigeration thermostat contact disconnect cooling green indicator light is extinguished, the compressor stops, into the insulation conditions. After the failure of the water temperature gradually rose, when l to set the temperature when the refrigeration temperature controller connected to power closed contact action, the green light compressor running. So, the temperature controlled at 4-12 DEG C.
Cooling principle of 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 light. Due to the direct cooling water dispenser with automatic temperature control, so after the start of refrigeration indicator bright. Press the heating switch, heating lamp, electric heating tube heating, hot water heating tank. When the water temperature to the set temperature, the thermostat contacts disconnect, automatically cut off the heating power, heating indicator lights and electric heating tube heating is stopped. When the water temperature drops to the set temperature, the thermostat contacts are closed and automatically switch on the heating power, heating lamp, electric heating tube heating. Then repeat the above process, the water temperature keeps constant temperature at 85-95 degrees.
