There are many types of cold storage , and the classification lacks a unified standard. The commonly used types according to the place of origin are briefly introduced as follows:
(1) According to the size of the storage capacity, there are large, medium and small. The commercial large and medium-sized warehouses mentioned in the general information have a relatively large storage capacity. According to the characteristics of relatively small cold storages production areas and the customary appellations of the masses, the storage capacity of more than 1,000 tons can be called large-scale storage, the storage of less than 1,000 tons and more than 100 tons is called medium-sized storage, and the storage of less than 100 tons is called Small library. The rural area of the place of origin is most suitable for building a small cold storage of 10 tons to 100 tons.
(2) According to the refrigerant used by the refrigerator, it can be divided into ammonia hangars refrigerated by ammonia machines and fluorine hangars refrigerated by fluorine machines. Small cold storages in rural production areas can choose fluorine hangars with a high degree of automation.
(3) According to the temperature of the cold storage, there are low-temperature storage and high-temperature storage. The fruit and vegetable fresh-keeping storage is generally a high-temperature storage, with a minimum temperature of -2°C. The fresh-keeping storage for aquatic products and meat is a low-temperature storage, and the temperature is below -18°C.
(4) According to the form of the internal cooling distributor of the cold storage, there are pipe cold storage and air cooler cold storage. Fruits and vegetables are generally kept fresh with air-cooled cold storage, commonly known as cold air storage.
(5) According to the construction method of the warehouse, it is divided into civil cold storage, assembly cold storage and civil assembly composite cold storage. Civil cold storage is generally a sandwich wall insulation structure, which occupies a large area and has a long construction period. The early cold storage is this way. The prefabricated cold storage is a warehouse assembled with prefabricated insulation boards. Its construction period is short and it can be disassembled, but the investment is relatively large. Civil construction assembly composite cold storage, the load-bearing and peripheral structure of the warehouse is in the form of civil construction, and the thermal insulation structure is in the form of polyurethane spray foam or polystyrene foam board assembly. Among them, the civil assembly composite cold storage with polystyrene foam panel insulation is the most economical and applicable, and it is the preferred form of cold storage in the production area.
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Post time: Jan-02-2023