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What is the principle of ice machine commonly used in life?

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What is the principle of ice machine commonly used in life?

Release date:2018-09-13 Author:admin Click:

Ice maker


An ice maker is a refrigeration machine that cools water through an evaporator and is cooled by refrigerant in a refrigeration system to produce ice.

The working principle of ice machine

The chilled water pump of the storage tank continuously circulates through the plate or grid evaporator; after the compressor is operated, the suction-compression-exhaust-condensation (liquefaction)-throttling-in the evaporator is -10 to- The 18-degree low-temperature evaporation absorbs heat and vaporizes, and 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 condenses to a certain thickness, the evaporation temperature of the refrigerant reaches temperature control After the set temperature is reached, the defrost solenoid valve is often connected to defrost in the form of heat pump, and then the next cycle is realized.


1. Ice-making cycle:

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.


2. Ice mining cycle:

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 the wet ice from being discharged by the machine.


3. Condenser of refrigerator:

It can be realized by air cooling, water cooling or evaporative condenser. The evaporative type is installed above the ice machine, the water-cooled condenser is installed under the ice machine or the refrigeration system, and the air-cooled condenser is installed according to the actual situation and can be installed together with the ice machine Can also be installed outdoors. If necessary, the water-cooled condenser can be used on the ship or on the coast, using sea water for cooling. Evaporative cooling can be used in high ambient air temperature, but from the perspective of efficiency and economy, it is not suitable for use in water-cooled or air-cooled refrigeration.



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