Frozen storage warehouses are storage facilities that maintain a constant temperature and humidity environment through artificial refrigeration. Originating from ice cellars, they operate at temperatures ranging from 5°C to -30°C and are used for storing food, pharmaceuticals, vaccines, and other items. They are typically located near transportation ports or production sites. Their core components consist of a compressor, condenser, expansion valve, and evaporator coils, with a refrigeration area far exceeding that of household refrigerators. Some frozen storage warehouses utilize hot gas defrosting technology and are equipped with emery-coated floors.
They are classified by structure into built-in and prefabricated types, by use into production and distribution types, and by size into large, medium, and small. Mobile frozen storage warehouses can be configured with combined refrigeration and freezing modules. Pharmaceutical frozen storage warehouses use polyurethane color steel panels to create dual-temperature zones, and vaccine frozen storage warehouses must meet the -80°C ultra-low temperature transportation standards. Some cold chain logistics centers have separate storage areas for halal food, storing over a thousand different types of products.
Frozen storage warehouses have always been an important part of the logistics industry. They are primarily used for the constant temperature and humidity storage of semi-finished and finished products such as food, dairy products, meat, aquatic products, poultry, fruits and vegetables, beverages, flowers, plants, tea, pharmaceuticals, chemical raw materials, electronic instruments, tobacco, and alcoholic beverages. Building a modern warehousing and logistics system is a crucial step in achieving the preservation, storage, and efficient distribution of agricultural products. Frozen storage warehouses are a type of refrigeration equipment; compared to refrigerators, they have a much larger refrigeration area, but they share similar refrigeration principles.
