Currently there are eight main types of cold storage division, the specific classification and its definition are as follows.
I. According to the cold storage capacity scale classification(1) large cold storage: nominal volume greater than 20,000m? above;
(2) medium-sized cold storage: nominal volume of 5,000 to 20,000m?
(3) small cold storage: nominal volume of less than 5,000m?
II. Cold storage design temperature classification(1) high-temperature cold storage (thermostatic storage): design temperature of 5 ~ 15 ℃.
(2) medium temperature cold storage: design temperature of 5 ~ -5 ℃.
(3) low-temperature cold storage (freezer): design temperature of -18 ~ -25 ℃.
(4) ultra-low-temperature cold storage (deep freezer): design temperature of -45 ~ -60 ℃.
(5) quick-freeze warehouse (freezer): design temperature of -35 ~ -40 ℃.
(6) fresh storage (air-conditioned storage): design temperature of 5 ~ -2 ℃.
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(1) Civil cold storage
The main body of the building uses a reinforced concrete frame structure or a brick and concrete structure for the low-temperature storage of frozen goods. It is also a kind of cold storage with high utilization rate at present, which can be single-story or multi-story.
(2) soil-covered cold storage
The soil-covered cold storage is also known as soil kiln cold storage. Refers to the use of masonry as a structure, built on the non-frozen sandstone layer or bedrock, insulation layer using a certain thickness of loess to cover the construction of the cold storage. The form has a single cave body type, continuous arch type.
(3) cave cold storage
cave cold storage is the application of refrigeration facilities in rocky caves, insulation layer with the help of natural rock layers built by the low-temperature storage of frozen goods place.
(4) jacketed cold storage
Jacketed cold storage refers to the conventional cold storage enclosure plus an inner jacket structure, in the jacket loaded with cooling equipment. Cold air generated by the refrigeration system circulates inside the jacket.
This structure of the cold storage to form a "cold air belt", on the one hand, the outer structure of the incoming heat away, on the other hand, to ensure that the temperature inside the library is stable, there will not be too much loss of cold.
(5) assembly cold storage
Except for the ground, all components are prefabricated according to uniform standards in specialized factories, and assembled at the site of low-temperature storage of frozen goods cold storage.
Universal Refrigeration Warm Tips:Complementary cold storage library board for the steel frame lightweight prefabricated insulation board assembly structure, load-bearing components are made of thin-walled steel. Library board inside and outside the board are used color steel (base material for galvanized steel), the core material of the library board for the foam rigid polyurethane or paste polystyrene foam board.
Four, according to the nature of the use of classification(1) productive cold storage
refers to a large refrigeration processing capacity and a certain cold storage capacity of the low-temperature storage of frozen goods place, generally built in the food origin, the source of a few kinds of areas and fisheries, agricultural base. This cold storage is mainly used for food or agricultural products after primary processing (cold processing, such as pre-cooling) long-term storage.
(2) distribution of cold storage
Distribution of cold storage, also known as transit cold storage is used to receive and storage has been frozen and processed food cold storage. Construction sites are generally chosen in large and medium-sized cities, more populated industrial and mining areas and land and water transportation hubs.
(3) retail cold storage
refers to the construction of industrial and mining enterprises or large urban food stores, vegetable markets, for temporary storage of retail food cold storage.
(4) transit cold storage
There are two main types of transit cold storage:
One is built on the water hub, to receive food transported from the productive cold storage. The refreezing capacity is weak, and generally the food is transported to the distributive cold storage for further storage or direct export through short-term storage.
The other type of transshipment cold storage is constructed at fishery bases. With the first production cold storage is different: this production cold storage of freezing capacity, can carry out large quantities of cold processing, in the fish and other aquatic products before entering the market to play an intermediate transit role. In addition transit cold storage station is large, strong loading and unloading capacity.
(5) comprehensive cold storage
The so-called comprehensive cold storage mainly refers to its strong functionality, production, distribution functions in one. Can meet the storage and cold processing of large-capacity products.
V. Cold storage refrigerant classificationAmmonia cold storage: refrigeration system using ammonia as a refrigerant cold storage.
Freon cold storage: cold system using Freon as a refrigerant cold storage.
6, according to the classification of stored goods(1) drug cold storage: cold storage in low-temperature refrigeration conditions can make the drugs do not deteriorate and fail to extend the shelf-life of drugs, to meet the technical requirements of the Pharmaceutical Supervision Bureau of the cold storage.
(2) meat cold storage: through artificial refrigeration methods to keep the library at low temperatures, used for meat freezing and cold storage buildings.
(3) blood cold storage: cold storage in low-temperature refrigeration conditions (2 ℃ -8 ℃) under refrigeration so that fresh blood and plasma does not deteriorate and fail to meet the technical requirements of the Medical Superintendent's Office of the cold storage.
(4) vaccine cold storage: cold storage in low-temperature refrigeration conditions so that the vaccine does not deteriorate and fail to extend the shelf life of medicines to meet the technical requirements of the Medical Board of Supervision of the cold storage.
(3) fruit cold storage: used for fruit storage and processing, with low temperature or control of oxygen, carbon dioxide and other gases in the library. Inhibit the activity of microorganisms and enzymes, to extend the fruit and vegetable long storage period of a storage method. Fruit cold storage has fruit preservation library and gas-conditioning library two kinds.
(4) Vegetable cold storage: used for fruit storage and processing, with low temperature or control of oxygen, carbon dioxide and other gases in the library. Inhibit the activity of microorganisms and enzymes, to extend the fruit and vegetables long storage period of a storage method. Vegetable cold storage has two kinds of vegetable preservation library and gas-conditioning library.
(5) cold storage of medicinal herbs: cold storage in low-temperature refrigeration conditions so that the medicinal herbs (biological, mineral herbs) do not deteriorate and fail to meet the technical requirements of the Pharmaceutical Supervision Bureau of the cold storage.
(6) aquatic products cold storage: used for aquatic fish and seafood frozen storage, to extend the shelf life of seafood and taste, to meet the technical requirements of the Food Supervision Bureau of the cold storage.
In accordance with the storage items, there are many types of cold storage, here will not be introduced.
seven, according to the use of structural materials and grade(1) high-grade cold storage
High-grade cold storage definition: insulation board material using high-quality polyurethane (with flame retardant function, material grade A or more) insulation board or high-quality stainless steel (frosted or polished material, material grade A or more) insulation construction of the low-temperature storage of frozen goods place, the price is high.
(2) low-grade cold storage
Low-grade cold storage definition: insulation board material using ordinary polyurethane (no flame retardant function) insulation board or high-quality stainless steel (no frosted or no polished material) insulation construction of low-temperature storage of frozen goods place price, the price of high-grade cold storage is relatively low.
(3) glass fiber reinforced plastic cold storage
Glass fiber reinforced plastic cold storage: cold storage body using glass fiber reinforced plastic insulation board material construction of low-temperature storage of frozen goods place.
(4) color steel cold storage
Color steel cold storage definition: cold storage tank body using glass fiber reinforced plastic material construction of low-temperature storage of frozen goods place.
(5) stainless steel cold storage
stainless steel cold storage definition: cold storage tank (except the ground) the use of stainless steel insulation board material construction of low-temperature storage of frozen goods place.
VIII. Classification according to the application industryCold storage is widely used in a variety of industries, according to different application industries, cold storage can be divided into the following types:
(1) scientific research cold storage: applied in the scientific research industry or university laboratories as a scientific research use and storage of cold storage;
(2) Agricultural cold storage: refers to the application of the agricultural products in the agricultural processing of the cold treatment, low-temperature storage of cold storage;
(2) Agricultural cold storage: refers to the application of the agricultural products in the preliminary processing of cold treatment, low temperature storage of Cold storage;
(3) industrial cold storage: refers to the application of industrial chemical raw materials and industrial electronics cold storage;
(4) logistics cold storage: logistics cold storage is mainly used in the logistics industry, low-temperature storage of food cold storage;
(5) pharmaceutical cold storage: refers to the main application of the pharmaceutical industry, low-temperature storage of pharmaceutical products in the cold storage.
(6) Catering cold storage: refers to the application in the catering industry, low-temperature storage of catering ingredients cold storage.
Reference:
Division of the types of cold storage standards and definitions of the - universal refrigeration equipment refrigeration encyclopedia