The difference between active cold storage and fabricated cold storage

The active cold storage, also known as the assembled cold storage, the assembled cold storage, and the combined cold storage are generally steel structural skeletons, supplemented by thermal insulation walls, roofs and underframes, and their performance requirements of heat insulation, moisture resistance and cooling. The activity cold storage insulation is mainly composed of heat insulation wall (wall), roof (pan), floor, door, support plate and base. They are assembled and fixed by special structure of the female hook to ensure good thermal insulation and air tightness of the cold storage.

In addition to the flexible opening of the cold storage door, it should be closed tightly and reliably used. In addition, the wooden parts in the cold storage door should be dried and anti-corrosive. The cold storage door should be locked and the handle must have a safety lock device, low temperature cold storage door or An electric heater with a voltage of 24V or less is concealed on the door frame to prevent condensation and condensation.

The library is equipped with a moisture-proof lamp, and the temperature measuring component is placed at a uniform temperature in the library, and the temperature display is installed in an easy-to-observe position of the outer wall of the library. All chrome or galvanized coatings should be uniform, and the welded parts and connectors must be firm and rustproof. The cold storage floor should have sufficient carrying capacity, and the large-scale active cold storage should also consider the loading and unloading operations of loading and unloading equipment.

1. Selection of active cold storage insulation board: There are three kinds of stainless steel, color coated steel plate and glass steel plate on the surface of the active cold storage insulation board. The material is divided into polyurethane cold storage board and polystyrene cold storage board for users to choose.

2. Temperature selection in the activity cold storage: divided into L, D, J, and three levels: 5 ° C ~ -5 ° C (fresh storage), -10 ° C ~ -18 ° C (refrigerator), -20 ° C ~ -23 ° C (freezing Three kinds of special requirements, low temperature cold storage can reach below -30 °C ~ -40 °C.

3. Activity cold storage size selection: can be arbitrarily combined according to user requirements, small activities cold storage of several tons, large cold storage up to 10,000 tons, at the same time compartment, any number of different, different specifications can be, the library is equipped with a cooling fan or evaporation Two types of pipes.

4. The choice of active cold storage compressor: the compressor is the heart of the active cold storage, the common compression type machine is open, semi-closed and fully enclosed. Fully enclosed compressors are small in size, low in noise, and low in power consumption. It is the preferred model for small cold storages such as active cold storage. Nowadays, the closed-end refrigeration compressors on the market are relatively reliable. The quality of refrigeration equipment imported from developed countries or Sino-foreign joint ventures is relatively reliable, but the price is much higher than that of domestically produced machines. It is more suitable for small cold storages such as cold storage in urban activities.

Commonly used forms of hermetic compressors are piston compressors: they are divided into three types: large, medium and small. Large compressors with a single unit cooling capacity of 550 kW or more, small compressors of 25 kW or less, and medium compressors. According to the operating temperature range, the compressor can be divided into three types: high temperature, medium temperature and low temperature. The high temperature type is -10 ° C ~ 10 ° C, the medium temperature type is -20 ~ 0 ° C, and the low temperature type is -40 ° C ~ -10 ° C. Piston compressors have a long history of production, mature manufacturing technology and good performance. There are dozens of models, which are most commonly used in small cold storage refrigeration systems such as active cold storage. However, the structure of the piston compressor is complicated, the wearing parts are many, the management and maintenance are troublesome, and it is mostly used in the medium and small cooling range. There are three kinds of stainless steel, color coated steel plate and glass steel plate on the surface of the cooling cold storage board. The material is divided into polyurethane cold storage board and polystyrene cold storage board for users to choose. The temperature in the cold storage is divided into L, D, J and three grades, which are 5 °C ~ -5 °C (preservation storage), -10 °C ~ -18 °C (refrigerator), -20 °C ~ -23 °C (freezer) Kind, special requirements low temperature cold storage up to -30 ° C ~ -40 ° C below. The size of the cold storage can be arbitrarily combined according to user requirements. The small cold storage can be several tons, the large cold storage can reach 10,000 tons, and the compartment can be divided into several sections. Different specifications can be used. There are two types of cooling fans or evaporation pipes. . Refrigeration cold storage is widely used, hotels, restaurants, restaurants and various food production plants, meat food processing plants, dairy products, cold drink factories, pharmaceutical factories, vegetable processing plants, frozen food factories, fan processing plants, farmers markets, edible fungi production. Factory, cold drink and meat products wholesale company. Kexing cold storage insulation board and cold storage door are provided by the company, with color steel plate, plastic plate, stainless steel plate, glass plate, various boards, beautiful and solid, anti-corrosion and durable.