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How to distinguish between various cold storages: According to the different products that are placed, we generally divide the cold storages into the following types: 1. The storage temperature of the fresh storage is generally 0 ℃ ~ 5 ℃, which is mainly used for fresh storage That is, to maintain the original quality and freshness of agricultural products to a maximum extent for a long time, and the living body of agricultural products should not die as much as possible, and the cells are in a dormant state during the refrigeration process, reducing the loss of nutrition and maintaining the fresh quality. This is generally used in fruits and vegetables.

What is a freezer? Quick-freezing cold storage refers to a method of quickly freezing food through its maximum ice crystal generation area and quickly freezing when the average temperature reaches -18 ° C. The temperature of the freezer is generally -15 ° C to -35 ° C. Mainly used for low-temperature fast freezing of food, medicine, medicinal materials, chemical raw materials and other items. With fast cooling, good freshness and so on. The so-called rapid freezing refers to the method of quickly freezing food when it passes through its largest ice crystal generation area and when the average temperature reaches -18 ° C.

Calculation of effective storage volume in cold storage 1. Calculation of tonnage in cold storage: 1. Assembled light steel structure cold storage: Tonnage of assembled light steel structure cold storage = content of refrigerated room × volume utilization factor × unit weight of food Internal volume of cold storage room of prefabricated light-steel structure cold storage = (inside the storehouse) length × width × height (cubic): volume utilization factor (stacking) of prefabricated light-steel structure cold storage: 500 ～ 1000 cubic meters = 0.40; Cubic = 0.50; 2001 ～ 10000 cubic meters = 0.55; 10001 ～ 15000 cubic meters = 0.60: Volume utilization factor (shelf) of fabricated light steel structure cold storage: 4-6 layers of shelves, effective volume * 0.5; 6-8 layers of shelves, effective Volume * 0.6; 8-10 layers of shelves, effective volume * 0.8; shelves of more than 10 layers; effective volume * 1.0-1.42, civil structure cold storage cold storage civil structure cold storage tonnage = inside the cold storage room