Refrigeration equipment is a device that combines a refrigerator and a facility that uses cold capacity. The design and construction of refrigeration equipment is to effectively use cold energy to refrigerate food or other items; to perform product performance tests and scientific research tests at low temperatures; to achieve certain cooling processes in industrial production, or to perform air conditioning. Items must release a certain amount of heat when they are cooled or frozen, and the enclosure structure of the refrigeration device will also transmit a certain amount of heat when in use. Therefore, in order to maintain the low temperature conditions in the refrigeration device, it is necessary to install a refrigerator to continuously remove the heat, or to use the melting of ice or the sublimation of dry ice to absorb the heat.
working principle
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 on 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 evaporated and frozen will flow into the water storage tank through the porous tank, and the cycle will restart.
When the ice reaches the required thickness (the thickness can be arbitrarily selected by the operator/user), the hot air discharged from the compressor is re-introduced into the wall of the ice maker to replace the low-temperature liquid refrigerant. In this way, a thin film of water is formed between the ice and the wall of the evaporation tube. This water film will play a role of lubrication when the ice falls freely into the groove below by gravity. The water produced during the ice-picking cycle will return to the water storage tank through the porous tank, which also prevents the wet ice from being discharged by the machine.
1. The chilled water pump in the water storage tank continuously circulates through the plate or compartment evaporator;
2. After the compressor is running, it undergoes suction-compression-exhaust-condensation (liquefaction)-throttling-and then evaporates at a low temperature of -10 to -18 degrees in the evaporator to absorb heat and vaporize. Chilled water continuously condenses into an ice layer on the surface of the lower evaporator at a water temperature of 0 degrees. When the ice layer has condensed to a certain thickness, after the evaporation temperature of the refrigerant reaches the temperature-controlled setting temperature, the defrosting solenoid valve is turned on and the deicing is usually performed in the form of a heat pump, and the next cycle is realized.