- The classification of cold storage temperature:
Cold storage is usually divided into four types: high temperature, medium and low temperature, low temperature and ultra-low temperature.
Different products require different temperatures.
A. High temperature cold storage
The high temperature cold storage is what we call the cold storage cold storage. Adhere to the temperature is usually around 0 ° C, and air cooling with a cooling fan.
B. Medium and low temperature cold storage
The medium and low temperature cold storage is the high temperature freezing cold storage, the temperature is usually within -18°C, and it is mainly used to store meat, water commodities and commodities suitable for this temperature range.
C, low temperature cold storage
Low-temperature cold storage, also known as freezing storage, freezing cold storage, usually the storage temperature is about -20°C~-30°C, and the freezing of food is completed by air cooler or special freezing equipment.
D. Ultra-low temperature cold storage
Ultra-low temperature cold storage, ≤-30 °C cold storage, is mainly used for quick-frozen food and special purposes such as industrial experiments and medical treatment. Compared with the above three, the applications on the market need to be slightly smaller.
2. Storage capacity calculation of cold storage
Calculate the tonnage of the cold storage: (calculated according to the design specifications of the cold storage and the relevant national standards for the storage capacity of the cold storage):
The internal volume of the refrigerated room × the volume utilization factor × the unit weight of the food = the tonnage of the cold storage.
The first step is to calculate the actual space available and stored in the cold storage: the internal space of the cold storage - the aisle space that needs to be set aside in the warehouse, the position occupied by internal equipment, and the space that needs to be reserved for internal air circulation;
The second step is to find out the weight of the items that can be stored per cubic meter of space according to the category of the inventory items, and multiply this to get how many tons of products can be stored in the cold storage;
500～1000 cubic = 0.40;
1001～2000 cubic = 0.50;
2001～10000 cubic = 0.55;
10001～15000 cubic = 0.60.
Note: According to our experience, the actual usable volume is greater than the volume utilization coefficient defined by the national standard. For example, the national standard 1000 cubic meters of cold storage utilization coefficient is 0.4. If it is placed scientifically and effectively, the actual utilization coefficient can generally reach 0.5. -0.6.
The unit weight of food in the active cold storage:
Frozen meat: 0.40 tons can be stored per cubic meter;
Frozen fish: 0.47 tons per cubic meter;
Fresh fruits and vegetables: 0.23 tons can be stored per cubic meter;
Machine-made ice: 0.75 tons per cubic meter;
Frozen sheep cavity: 0.25 tons can be stored per cubic meter;
Deboned meat: 0.60 tons per cubic meter;
Post time: Apr-28-2022