How to choose a mobile cold storage

How to choose a mobile cold storage

Mobile cold storage is also called combined cold storage, movable cold storage, and assembled cold storage. It is a new type of cold storage corresponding to the traditional civil cold storage. With its unique advantages, mobile cold storage is widely used in the freezing and cold storage of various items such as food and medicine.

　　Mobile cold storage has the following characteristics:

　　1. Mobility: It can be cooled after receiving electricity without being restricted by the location environment.

　　2. Flexibility: It can be sold as a whole without long-term use, or it can be purchased through financing partnership.

　　3. Value-added: It can be rented out as a whole equipment.

　　4. Portability: The product can be frozen as soon as it is caught or slaughtered.

　　5. Energy-saving: Compared with the traditional dry evaporative refrigeration system, the efficiency is increased by more than 20%.

　　6. ​​High efficiency: The full-liquid evaporation has high efficiency and short freezing time, ensuring the freshness of frozen products to the greatest extent.

　　7. Intelligent: Provide a remote monitoring platform for the Internet of Things, which can remotely monitor and maintain equipment through the network.

　　 8. Economy: Since the equipment has been installed and debugged in the factory, the overall price is less than the cost of on-site installation and debugging, saving capital investment.

　　9. Design of the library body: the domestic sales type uses double-sided stainless steel panels, low-temperature foam insulation materials, beautiful appearance, suitable for indoor placement. The export-oriented warehouse body uses international standard low-temperature containers.

　　10. Versatility: According to the different conditions of the production site, it can provide various condensation methods such as air cooling, water cooling, evaporative heating, etc.; Freon refrigerants are commonly used in the general market, and there is no need to replace any mechanical parts to replace the refrigerant. At the same time, export-oriented products are also suitable for domestic use that does not have a fixed place, such as the origin of the product and the port.

　　Mobile cold storage can get rid of the influence of climate, extend the storage period of agricultural and livestock products, and adjust market supply. The cold storage should be built in a place with convenient transportation and reliable water and electricity supply sources. The storage site should have good environmental sanitation conditions, and try to avoid harmful gases, smoke, dust from industrial and mining enterprises, and pollution sources from infectious hospitals.

　　 Classification of mobile cold storage

　　 According to the different nature of use, it can be divided into three types: production cold storage, distribution cold storage and life service cold storage.

　　Productive cold storage is an important part of food processing enterprises, and is generally built in areas where the supply of goods is concentrated. Its characteristics are large cold processing capacity, zero in and out of stored items. Distributive cold storage is generally built in big cities or water and land transportation hubs and densely populated industrial and mining areas to store food for market supply and transportation. It is characterized by large refrigeration capacity and small freezing capacity, which is suitable for storage of a variety of foods. Life service cold storage is used for temporary storage of food to adjust life needs. Its characteristics are small storage capacity, short storage period, many varieties, and low stockpiling rate.

　　 Cold storage building is generally carried out at room temperature from the beginning of construction to equipment installation, and the structural system is also at room temperature; but after the cold storage is put into use, its structural system is in a low temperature environment. The structural system deformation caused by the large temperature difference is much larger than that of ordinary buildings, so temperature stress calculations must be performed to prevent cold bridges. Anti-freezing measures should be taken on the floor to prevent the foundation from uplifting and causing damage to the building. At the same time, materials with strong frost resistance should be selected to enhance the frost resistance and durability of the structure.

　　Generally, cold storage is mostly refrigerated by a refrigerator, which uses liquid with a very low vaporization temperature as a coolant to evaporate under low pressure and mechanically controlled conditions, and absorb heat in the storage to achieve the purpose of cooling. The most commonly used is the compression refrigerator, which is mainly composed of a compressor, a condenser and an evaporation tube. According to the method of the evaporation tube device, it can be divided into direct cooling and indirect cooling.

　　 cleaning and maintenance

　　The service life and operating performance of the equipment largely depend on the maintenance it receives. To ensure the service life of the mobile cold storage, cleanliness and minimum maintenance costs, it is necessary to thoroughly clean the cold storage, remove all debris and clean the ceiling fan and the interior of the cold storage.

　　Mobile cold storage installation ceiling fan:

　　 When cleaning, protect the motor from water splashing on the motor, otherwise the motor will be damaged.

　　 Note: The fan power should be cut off before cleaning.

　　 External surface of mobile cold storage:

　　 Use flexible cleaning agent and warm water to clean to ensure the surface finish. Do not use abrasive cleaning agents or abrasive pads for scrubbing.

　　The inner surface of the mobile cold storage:

The inner surface can be cleaned with household cleaners, amino cleaners and detoxification solutions. This will not damage the surface. It is not allowed to use abrasive cleaners and friction pads to scrub. It is not allowed to damage the surface. It is not allowed to use abrasive cleaners and friction pads to scrub. , Do not splash water on electrical parts, and do not use solvents, oils or acid cleaning agents.

Repair and maintenance

　　 (1) Please refer to the operating instructions of the ceiling fan for the maintenance of the ceiling fan of the mobile cold storage.

　　 (2) Replace the lighting lamp:

　　 When replacing the lighting lamp, cut off the power first, and then remove the lamp cover to replace the lighting lamp. After replacing the bulb, install the lampshade to ensure the seal.

　　 (3) Mobile cold storage failures and maintenance methods:

　　The list of common faults and their maintenance methods is as follows:

　　The choice of insulation board

　　The surface of the mobile cold storage insulation board has three types: stainless steel, color-coated steel plate, and glass steel plate. The materials are polyurethane cold storage board and polystyrene cold storage board for users to choose.

　　 size selection

　　 can be combined according to user requirements, small mobile cold storage several tons, large-scale cold storage up to tens of thousands of tons, at the same time can be compartments, any number of rooms, different specifications are available, the storage is equipped with two kinds of air cooler or evaporation pipe.

　　The choice of compressor

　　 Compressor is the heart of mobile cold storage. Common compressors are divided into open type, semi-closed type and fully enclosed type. The hermetic compressor has small size, low noise and low power consumption. It is the first choice for small cold storage such as mobile cold storage.

　　 Now the better fully enclosed refrigeration compressors on the market, 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 domestic ones, which is more suitable for small cold storage such as urban mobile cold storage.

　　 The commonly used form of hermetic compressor is a piston compressor: it is divided into three types: large, medium and small. The single-unit refrigeration capacity is above 550kW is a large compressor, the one below 25kW is a small compressor, and the middle compressor is a medium compressor.

　　 Piston compressor has a long production history, mature manufacturing technology, and good performance. There are dozens of models, and it is most commonly used in small cold storage refrigeration systems such as mobile cold storage. However, the structure of the piston compressor is more complicated, there are many wearing parts, and the management and maintenance are more troublesome. It is mostly used in the range of medium and small cooling capacity.

The size of the cold storage can be combined according to user requirements. The small cold storage is several tons, the large cold storage can reach tens of thousands of tons. At the same time, it can be divided into several rooms, and different specifications are available. The storage is equipped with air coolers or evaporative pipes. .