Freeze and refrigeration are mainly used for low-temperature freezing of food, medicine, medicine, chemical raw materials and other items. Refrigeration adopts refrigeration system refrigeration, using low evaporation temperature Freon as coolant, volatilizing under the bottom pressure and mechanical equipment operation standards, digesting and absorbing the stored heat, and achieving the purpose of cooling and cooling.
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Quick-freezing cold storage refers to a cold storage where food will undergo various changes during the freezing process, and when the average temperature reaches -18 °C, it quickly freezes through its largest ice crystal generation zone. Generally speaking, the temperature of quick-freezing cold storage is -15 °C ~ -35 °C.
Daily maintenance measures for freezer storage.
1. Parameters such as refrigeration and refrigeration equipment, storage temperature, humidity and other parameters should be determined according to the technical points of refrigeration and refrigeration installation, and the parameters shall not change at will;
2. The purchase can refer to the household refrigerator purchase standard, avoid all goods stacked together, it is best to use the storage shelf system to place them in sections;
3. Generally speaking, the floor of the small quick-freezing cold storage adopts insulation board. When using quick-freezing cold storage, you should prevent a large amount of ice and water on the ground. If there is ice, do not hit it with hard objects during cleaning to damage the ground;
4. The condenser of the refrigeration system is easy to be contaminated and should be cleaned regularly. According to the actual situation, maintain good heat exchange, heat dissipation and cooling without debris;
5. Try to avoid the frequency of opening and closing the door every day, to ensure that people entering and leaving the warehouse must close the door, enter the warehouse to turn on the lights and leave the warehouse to turn off the lights;
6. When using the cold storage board, attention should be paid to the collision and scratching of the cold storage body by hard objects, to avoid the denting and corrosion of the cold storage board, and to reduce the local thermal insulation performance of the cold storage body in severe cases;