1. How to determine the volume of cold storage?
The size of the cold storage should be designed according to the perennial storage of agricultural products. This capacity not only takes into account the volume necessary to store products in the cold storage, but also increases the space between aisles, stacks and walls, ceilings, and gaps between packages. After determining the cold storage capacity, determine the length and height of the cold storage.
2. How to choose and prepare the cold storage site?
In the design of cold storage, necessary auxiliary buildings and facilities should also be considered, such as studios, packing and finishing rooms, tool storage and loading and unloading stations. According to the nature of use, cold storage can be divided into distributed cold storage, retail cold storage and production cold storage. Production cold storage should be built in the production area with concentrated supply of goods, and factors such as convenient transportation and market contact should also be considered. There should be good drainage conditions around the cold storage, the underground water level should be low, there is a partition under the cold storage, good ventilation. Keeping dry is very important for cold storage.
3. How to choose cold storage insulation materials?
The selection of cold storage insulation materials must be adapted to local conditions, both good insulation performance, and economic and practical. The structure of modern cold storage is being developed into prefabricated cold storage. For example, the insulation material commonly used in the preservation cold storage is polyurethane cold storage board, because of its good waterproof performance, low water absorption, insulation, moisture-proof, waterproof performance, light weight, convenient transportation, not perishable, flame retardant, high compressive strength, good seismic performance, but the cost is relatively high.
4. How to choose cold storage cooling system?
The selection of cold storage cooling system is mainly the selection of cold storage compressor and evaporator. Generally speaking, small cold storage (nominal volume less than 2000 cubic meters) mainly uses fully hermetic compressors. Medium cold storage generally choose (nominal volume 2000-5000 cubic meters) semi-hermetic compressor; Large cold storage (nominal volume more than 20,000 cubic meters) use semi-hermetic compressor, but the installation and management of cold storage design drawings is relatively cumbersome.
5. How to choose refrigeration compressor?
In cold storage refrigeration units, the capacity and number of refrigeration compressor cold storage equipment is configured according to the heat load of the production scale, and takes into account each refrigeration parameter. In actual production, it is impossible to agree exactly with the design conditions. Therefore, it is necessary to select and adjust the compressor capacity and number of reasonable operation according to the actual production situation, and complete the required cold storage refrigeration task with low consumption and appropriate conditions.
