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The principle of the process of flake ice machine


Flake ice machine is a kind of ice machine. According to the water source, it can be divided into fresh water flake ice machine and sea water flake ice machine. Generally, it is an industrial ice machine.


The principle of the flake ice machine process:

1. Vertical evaporator of flake ice machine

The evaporator of the flake ice machine is a vertically erected barrel structure, which is composed of the main components of ice making, the ice blade, the main shaft, the sprinkler tray, and the water tray. Driven by the reducer, they slowly rotate counterclockwise.

2. The principle of ice making

The water enters the water distribution tray from the water inlet of the evaporator of the flake ice machine. Through the sprinkler pipe, the water is evenly sprinkled on the inner wall of the evaporator to form a water film; the water film exchanges heat with the refrigerant in the evaporator flow channel, and the temperature is rapid. When lowered, a thin layer of ice is formed on the inner wall of the evaporator. Under the extrusion of the ice blade, it is broken into flakes of ice and falls into the ice storage from the ice-dropping port. Part of the unfrozen water is returned to the cold water tank from the water return port through the water receiving tray, and passed through the cold water circulation pump.

3. Ice making cycle

Through the make-up 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 sprayed evenly on the surface of the ice maker and flows through the ice maker like a water curtain. The water is cooled to the freezing point, and the water that has not been evaporated and frozen will flow into the water storage tank through the porous tank and restart the cycle.

4. Ice mining cycle

When the ice reaches the required thickness (under normal circumstances, the thickness of the ice is 1.5-2.2MM), the hot air discharged from the compressor is re-introduced into the ice maker's clamping wall to replace the low-temperature liquid refrigerant. This forms a thin film of water between the ice and the wall of the evaporation tube, which will lubricate the ice as it falls freely into the groove below by gravity. The water produced during the ice harvest cycle will be returned to the water storage tank through the porous tank, which also prevents the wet ice from being discharged by the machine.

5. Refrigerator condenser

Available with air-cooled, water-cooled or evaporative condensers. The evaporative type is installed above the ice machine, the water-cooled condenser is installed under the ice machine or under the refrigeration system, and the air-cooled condenser can be installed together with the ice machine according to the actual situation. It can also be installed outdoors. If desired, water-cooled condensers can be used on ships or on shore, using seawater for cooling. Evaporative cooling can be used when the ambient air temperature is high, but from the perspective of efficiency and economy, it is not suitable for water-cooled or air-cooled refrigeration.

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