The use of natural cold resources for the preservation of fresh fruits and vegetables storage technology This technology is the use of water in the solid-liquid phase change can release or absorb a large number of latent heat characteristics of water-based winter resources will be the formation of ice storage, while releasing a large number of latent heat to maintain the library Within a certain temperature, to ensure that fruits and vegetables are free from frost damage; in the warm season, ice is used as a cold source to maintain the necessary low temperature and high humidity conditions for storage of fruits and vegetables. The library does not use mechanical refrigeration equipment, several ventilation fans, dampers, lighting and control circuits. As long as the equipment costs are low, the storage capacity is about 500 to 1,000 tons. The library construction is basically the same as the general cold storage requirements. If semi-underground buildings or cave dwellings or caves can be used, the construction cost can be greatly reduced. The power consumption is less than 1/10 of the mechanical refrigeration, and only 1 of each warehouse is required. ~2 people management. The library is suitable for construction in areas with annual average temperature below 12°C and minimum winter temperature below -5°C. The lower the temperature, the better the efficiency. The temperature inside the storehouse can be stabilized at 1°C according to storage requirements, and the relative humidity in the store is maintained above 90%. The internal ice making and temperature control in the warehouse can be basically automated, and no power loss will occur in 2 to 3 days. The library is designed for storage of 100 to 1,500 tons, and the greater the storage, the better the benefits. The technology is a major breakthrough made at home and abroad using natural energy-saving technologies and fruit and vegetable preservation technology, and has made significant contributions to solving the low-cost, high-efficiency storage and preservation of fruit and vegetable production areas in northern China.
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