If two cold storages of 500t and 250t are to be built, the capacity of the cold storage should be at least 2,000 cubic meters and 1000 cubic meters. You can design your own cold storage according to your site. The height of the general cold storage is about 6 meters, which means that your cold storage should be about 350 square meters, 180 square meters. You can choose the compressor according to the annual service time of your cold storage and the initial investment you expect. As for the ammonia refrigeration system, the piston machine had better adopt two-stage compression, and the screw machine with economizer had better be selected. The long-term operation of screw machine is the most economical, but the initial investment is relatively large. Although the initial investment of piston machine is small, its later operation is not as economical and energy-saving as that of screw machine. Generally, screw machines are cold weapons, and the piston position is iceberg group.
Defrosting equipment, mainly according to the evaporator used in your cold storage, if the top row of pipes is used, generally only manual defrosting and hot ammonia defrosting can be done regularly. If a cold air blower is used, hot ammonia water and water can be used for defrosting. It is necessary to pay attention to the heat preservation of water pipes in the cold storage to prevent freezing.