Method for storing and utilizing natural cold energy and underground low temperature storage

Abstract

The invention discloses a method for storing and utilizing natural cold energy, which comprises the steps: a. in cold seasons, cold air above the ground is led into the space under the frozen earth layer of the ground so that soil, other natural cold storing bodies and the body of a cold storage built underground are frozen, thus storing the cold; and b. in warm seasons, the frozen soil, natural cold storing bodies and the body of the cold storage built underground thaw and release cold energy to cooling materials stored in the storage. The invention also discloses an underground low temperature storage which comprises a storehouse (1) built underground; a thermal insulating (2) layer is arranged between the top and the floor of the storehouse (1); a protection wall (4) and a protection base (5) are arranged around the storehouse (1) and at the lower part of the storehouse (1); air channels (3) are formed at intervals between the storehouse (1) and the protection wall (4) and the protection base (5); and an air inlet channel (6) and an air outlet channel (7) are arranged between the air channels (3) and the floor of the storehouse. The method has the advantages of long cold-energy storing period, high energy storage capacity and good energy storage effect. The underground low temperature storage has the advantages of saving space on the ground and energy and having low use expanses.

Description

technical field [0001] The invention relates to a cold storage method and a low-temperature storage. Background technique [0002] At present, the main method for people to obtain cold energy is to use refrigerators, which need to consume other energy, and have low efficiency, poor energy conservation and environmental protection. Some people think of storing and utilizing natural cold energy, but they all use artificial devices to store Storage of cold energy, the time for storing energy is short, the energy storage is small, and the energy storage effect is not good enough. The cost of the device is relatively high, and the storage warehouses for items with high temperature requirements such as food, grain and vegetables are all built above the ground , it takes up ground space, the temperature above the ground is too cold in winter and too hot in summer, in order to keep the storage at a suitable temperature, it is necessary to heat the storage in winter and cool the stor...

AI Technical Summary

Problems solved by technology

[0002] At present, the main method for people to obtain cold energy is to use refrigerators, which need to consume other energy, and have low efficiency, poor energy conservation and environmental protection. Some people think of storing and utilizing natural cold energy, but they all use artificial devices to store Storage of cold energy, the time for storing energy is short, the energy storage is small, and the energy storage effect is not good enough. The cost of the device is relatively high, and the storage warehouses for items with high temperature requirements such as food, grain and vegetables are all built above the ground , it takes up ground space, the temperature above the ground is too cold in winter and too hot in summer, in order to keep the storage at a suitable temperature, it is necessary to heat the storage in winter and cool the storage in summer, which is expensive to use and wastes energy

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