Cold chain logistics generally refers to a systematic project that keeps refrigerated and frozen foods in a specified low-temperature environment throughout the production, storage, transportation, distribution, and consumption of food products to ensure food quality and reduce food loss. It was established with the advancement of science and technology and the development of refrigeration technology. It is a low-temperature logistics and storage process based on freezing technology and using refrigeration technology as a means. With the rapid development of China's agricultural product cold chain logistics industry, the country has formulated and implemented scientific and effective macro policies.

Meat and meat products are rich in protein nutrients and have high water activity. Microorganisms are very likely to multiply and grow during storage, processing, transportation and sales, causing them to spoil. This not only leads to economic losses and environmental pollution but also seriously endangers people's health and lives. The application of advanced and energy-saving refrigeration equipment and technology, including acid discharge, cooling, quick freezing, and other processes in the slaughtering industry, ensures the safety, edibility, and economy of meat products from the source.

In industrial production, refrigeration equipment can accurately realize certain cooling processes or perform air conditioning and is widely used in chemical, pharmaceutical, electronic and other fields. In the pharmaceutical field, due to the particularity of the industry, the environmental temperature, humidity and cleanliness requirements during the production and storage of pharmaceutical products are very high, which also puts higher requirements on related refrigeration equipment.

The importance of supermarkets to people's lives is self-evident. At the end of the cold chain logistics of agricultural and sideline products, supermarkets have high requirements for product quality in the distribution and retail links. The freezing and refrigeration equipment in supermarkets plays a big role in food preservation and plays an important role in meeting people's growing needs for a better life.

Industrial chillers are widely used in plastics, electroplating, electronics, chemicals, pharmaceuticals, printing, food processing, and other industrial refrigeration processes that require chilled water, or in villas, restaurants, hotels, offices, schools, factories, and other human activity spaces to provide comfortable air conditioning. As one of the solutions for ammonia to fluorine conversion, low-temperature chillers are a recommended solution.

The central kitchen is a relatively broad concept. Based on the need for food safety and nutrition guarantees, the temperature requirements are very strict. Usually, cold storage for refrigerated storage, cold storage for frozen storage, etc. are required; according to the purpose of the catering operation, it can be divided into central distribution center cold storage, operation room cold storage, transportation room cold storage, and garbage cold storage, etc.; and according to the operation purpose of central kitchen cold storage, quick cold storage is also required for quick freezing processing of some cooked food products. At the same time, for the processing room, refrigeration equipment is also needed to control the regional temperature to ensure food safety.

Star-rated hotels and restaurants are equipped with dedicated cold storage to store food or food ingredients, etc. Hotel and restaurant cold storage is mostly designed as a dual-temperature storage (or even a multi-temperature storage) to meet the optimal storage temperature requirements of different foods: refrigerated storage is mainly used to store fruits and vegetables; frozen storage is mainly used to store seafood, frozen meat, etc.