What is the working principle of ice maker?

What is the working principle of ice maker?

Through the supplementary water valve, the water automatically enters a water storage tank, and then the water is pumped through the flow control valve to the diverter head, where the water is evenly sprayed onto the surface of the ice maker and flows through the ice maker like a water curtain On the wall surface, the water is cooled to the freezing point, and the water that has not been frozen by evaporation will flow into the storage tank through the porous tank and restart the circulation work.
When the ice reaches the required thickness (the thickness can be arbitrarily selected by the operator/user), the hot gas discharged from the compressor is reintroduced back into the wall of the ice maker to replace the low-temperature liquid refrigerant. In this way, a film of water is formed between the ice and the wall of the evaporation tube. This film of water will play a role of lubrication when the ice falls freely into the groove below by gravity. The water generated during the ice mining cycle will return to the water storage tank through the porous tank, which also prevents wet ice from being discharged by the machine.
1. The chilled water pump of the water storage tank continuously circulates through the plate or grid evaporator;
2. After the compressor is operated, it is vaporized by suction-compression-exhaust-condensation (liquefaction)-throttling-at the evaporator at a low temperature of -10 to -18 degrees. The frozen water continuously condenses into ice on the surface of the lower temperature evaporator at a water temperature of 0 degrees. When the ice layer condenses to a certain thickness, the refrigerant evaporation temperature reaches the set temperature of the temperature control, that is, the defrost solenoid valve is turned on, and the heat pump is often used to remove ice, and then the next cycle is realized.
Ice making process
Through the water inlet valve, the water automatically enters a water storage tank, and then pumps the water to the shunt pipe, the shunt pipe evenly flows the water to the evaporator cooled by the low-temperature liquid refrigerant, the water is cooled to the freezing point, and these are cooled to the freezing point The water will freeze into ice, and the water that has not been frozen by the evaporator will flow into the storage tank again, and the cycle will be restarted by the pump.
When the ice cube reaches the required thickness, it enters the de-icing state, and the high-pressure hot gas discharged from the compressor is diverted to the evaporator through the reversing valve to replace the low-temperature liquid refrigerant. In this way, a water film is formed between the ice block and the evaporator. This water film makes the ice block leave the evaporator, and the ice block freely falls into the ice storage tank under the action of gravity.