What is the ice making process of the ice machine

Update:10-05-2022
Summary:Through the make-up water valve, the water automatically enters a water storage tank, and then the water is pumped throu...
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. When the ice reaches the required thickness (the thickness can be chosen arbitrarily by the operator/user), the hot gas discharged from the compressor is re-introduced back into the wall of the ice maker 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. After the compressor is operated, it undergoes suction-compression-exhaust-condensation (liquefaction)-throttle-and then in the evaporator at a low temperature of -10 to -18 degrees to absorb heat and vaporize. Chilled water continuously condenses into ice on the cooler surface of the evaporator at a water temperature of 0 degrees. When the ice layer condenses to a certain thickness, after the evaporation temperature of the refrigerant reaches the set temperature of the temperature control, the defrosting solenoid valve is turned on, and the heat pump is often used to remove the ice, and then the next cycle is realized. Through the water inlet valve, the water automatically enters a water storage tank, and then the water is pumped to the shunt pipe through the water pump, and 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 water storage tank and restart the cycle through the water 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 cubes and the evaporator, which makes the ice cubes leave the evaporator and fall freely into the ice storage tank below by gravity. Cylindrical ice is generally spray-type ice-making. This ice-making method has a low freezing point, which can reach below minus 20 °C. The contact surface between the cylindrical surfaces is small, it is not easy to stick to agglomerate, and it is convenient to use ice. Cylindrical ice cubes have high hardness, low temperature, and crystal clear ice cubes, which are suitable for the cooling of foreign wines.

The slower Ice maker melting speed will not dilute the foreign wines and affect the taste of foreign wines. The disadvantage of cylindrical ice ice machines is that the ice production efficiency is relatively low. , generally used in the production of bar-type small ice machines. Determined by the ambient temperature, the higher the ambient temperature, the higher the condensation temperature. Generally, when using an air-cooled condenser, the condensing temperature is 7-12°C higher than the ambient temperature, and the value of 7-12°C is called the heat exchange temperature difference. The higher the condensing temperature, the lower the cooling efficiency of the refrigeration unit, so we need to control the heat exchange temperature difference should not be too large. However, if the temperature difference of heat exchange is to be too small, the heat exchange area of ​​the air-cooled condenser and the circulating air volume will be larger, and the cost of the air-cooled condenser will be higher.