1. Electric-cooled cold storage
Electric-cooling cold storage uses electric energy to directly perform refrigeration. Its basic structure is composed of three parts: a refrigerant circulation system, a compressor and a condenser. Compared with other refrigeration methods, the refrigeration cost of electric-cooled cold storage is relatively high, but its control method is simple and the operating noise is low. It is widely used in small commercial places and home cold storage and other occasions.
Advantages: The refrigeration system has a simple structure, is easy to control, has low noise, and is easy to install and maintain.
Disadvantages: high energy consumption, limited cooling capacity, only suitable for small places or personal use.
2. Mechanical cold storage
Mechanical cold storage is mainly based on mechanical compression refrigeration, usually using steamed ammonia or Freon as the refrigerant. Mechanical cold storage has a large refrigeration capacity, a large output refrigeration capacity, and relatively low operating costs, so it is widely used in large-scale food industries and logistics cold chain industries. But at the same time, the control of this type of cold storage is relatively complicated.
Advantages: Strong cooling capacity, suitable for large enterprises, stable cooling effect.
Disadvantages: Compared with the electric cooling type, the mechanical type has higher operating noise, higher cost, and more complex structure and control system.
3. Liquid nitrogen cold storage
Liquid nitrogen cold storage mainly uses liquid nitrogen refrigeration technology, using liquid nitrogen for direct refrigeration. It does not use refrigerants, has fast cooling speed and relatively low energy consumption, but requires high maintenance costs and use risks.
Advantages: Fast cooling speed, suitable for occasions with high cooling speed requirements.
Disadvantages: Compared with other refrigeration methods, the maintenance cost of liquid nitrogen refrigeration system is high, the use risk is high, there are hidden dangers such as explosion and leakage, and strict operating specifications and safety measures are required.
4. Hybrid cold storage
Hybrid cold storage, as the name suggests, is a mixture of different refrigeration technologies, such as mechanical and liquid nitrogen, used in one cold storage system. To achieve the purpose of energy saving and high efficiency. This type of cold storage has a relatively complex structure and is suitable for large-scale industrial refrigeration and logistics cold chain industries.
Advantages: significant energy saving effect and high cooling efficiency.
Disadvantages: It requires more professional technical and equipment support, and the maintenance cost is relatively high.