Principle Of Flake Ice Machine

Principle of Flake Ice Machine

1. Vertical evaporator of flake ice machine

The evaporator of the flake ice machine is a vertically erected bucket structure, which is composed of ice blades, main shaft, sprinkler plate and water receiving plate, which are the main components of ice making. Driven by the reducer, they slowly rotate counterclockwise.

2. The principle of ice making

Water enters the water distribution tray from the water inlet of the evaporator of the flake ice machine, and 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 it is lowered, a thin layer of ice is formed on the inner wall of the evaporator. Under the extrusion of the ice blade, it breaks into flakes of ice and falls into the ice storage from the ice outlet. Part of the unfrozen water returns to the cold water tank from the water return port through the water receiving tray, and passes through the cold water circulation pump.

3. Ice making cycle

Through the supplementary water valve, water automatically enters a water storage tank, and then through the flow control valve, the water is pumped to the splitter head, where the water is evenly sprayed 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 grooves, and the cycle work will start again.

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 reintroduced 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 evaporator tube, and this film of water will act as a lubricant when the ice falls freely into the groove below by gravity. The water produced during the ice mining cycle will return to the water storage tank through the porous groove, 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 higher than the ice machine, the water-cooled condenser is installed under the ice machine or under the refrigeration system, and the air-cooled condenser is installed together with the ice machine according to the actual situation. It can also be installed outdoors. Water-cooled condensers can be used on board or at sea if required, using seawater 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 water-cooled or air-cooled refrigeration conditions.