Also because the pre-embedded steel parts of the hanging refrigeration exhaust pipes of the existing two-story civil cold storage are pre-embedded in the reinforced
concrete beams, slabs, and side walls, the pre-embedded steel parts cannot be insulated. The steel bars in the beams, slabs, and side walls are integrated to form multiple strong cold bridges; Deeper, in a humid state for many years, it is easy to exchange cold energy and
heat energy. In winter, a strong exchange of cold energy and
heat energy is formed between the geothermal heat. The cold energy in the cold storage is transmitted to the The outside world; these pre-embedded steel parts pass through the
insulation layer, and when they are cold, they will condense the moisture in the air into water and ice, soak the insulation layer, and destroy the reinforced concrete; and because there is no ground insulation layer in the existing two-story civil cold storage Rubik's cube support, the material of the insulation layer is insufficient for the reinforced concrete on the load-bearing ground and the goods on the ground. After loading, the insulation layer is deformed and thinned, and cracks are formed at the connection between the side and the ground, which is easy to soak and conduct cold; and because the existing two-story The civil cold storage has no Rubik's cube support on the ground at the outer door opening of the cold storage wall, so that the ground inside and outside the cold storage directly forms a reinforced concrete cold conduction cold bridge; and because the insulation layer in the existing two-story civil cold storage roof has no Rubik's cube support, the existing The internal cold energy of the two-story civil cold storage is transmitted to the roof through the supporting
brick columns and concrete columns; and because the existing two-story civil cold storage has a heavy reinforced concrete frame
brick structure on the top floor, the construction period is long and the construction cost is high; The method of fixing the thermal insulation material on the wall of the existing cold storage is: directly pass the fixed expansion bolt through the thermal insulation material to be fixed on the wall, and the expansion bolt forms a gap when passing through the thermal insulation material, that is, the gap between the fixed expansion bolt and the thermal insulation material. The gap between the fixed expansion bolt itself and the gap between the fixed core and the fixed shell, this gap can no longer be filled with thermal insulation material, the fixed thickness of this fixing method is limited, the fixing performance is poor, resulting in the thermal insulation function of the thermal insulation layer Reduced permanent defects; also because the existing two-story civil cold storage needs to insulate all the inner surfaces of the reinforced concrete frame bricks, the insulation area is large, the insulation cost is high, and the insulation effect of the beams and columns is worse, which is unsafe and flammable. It is impossible to establish a fully enclosed waterproof and
moisture barrier system in the first floor; the existing two-story civil cold storage has formed a congenital lack of a fully enclosed waterproof and
moisture barrier system that must be included in the insulation layer since the day it was established, and the cold storage system is incomplete; As a result, the quality of freezing and cold storage continues to decline, the daily
temperature difference is large, the
economic benefits are gradually reduced, and the cold storage consumes more electricity. , high construction cost