How to design fruit cold storage can extend the service life

How to design fruit cold storage can extend the service life

For fresh fruit e-commerce, it is very important to build a medium-sized fruit cold storage that can not only keep fresh but also reduce losses, but how can it be considered a good medium-sized fruit cold storage and how to guarantee its service life when constructing?

　　In the eyes of professionals, the construction of medium-sized fruit cold storage is generally carried out at room temperature from the beginning of construction to equipment installation, and the structural system is also at room temperature; and after the cold storage is put into use, its structural system is in a low temperature environment. The structural system deformation caused by the large temperature difference is much greater than that of ordinary buildings. Therefore, temperature stress calculations must be carried out to prevent "cold bridges". Anti-freezing measures should be taken on the floor to prevent building damage caused by foundation uplift. Materials with strong frost resistance should be selected to enhance the frost resistance and durability of the structure.

How to design fruit cold storage can extend the service life

In recent years, prefabricated beamless floors and beamless floor frame structures constructed by lifting slabs are gradually being promoted. In addition to meeting strength and stability, the design of the enclosure wall structure of the cold storage should also maintain thermal insulation. And the continuity of the gas barrier makes it meet the thermal requirements of the building. The roof structure of the refrigerator is exposed to direct sunlight for a long time, and will expand or contract due to the influence of temperature changes. It is advisable to use prefabricated components to adjust the deformation between the components to reduce the total deformation. In order to prevent The detrimental effect of roof expansion and contraction on the wall can be designed as a sliding contact surface between the roof structure and the wall. Since the medium-sized fruit cold storage is mainly used for food freezing and cold storage, artificial refrigeration is required to keep the room inside. Low temperature.

The walls, floors and flat roofs of the cold storage are covered with a certain thickness of insulation material to reduce the heat introduced from the outside. In order to reduce the absorption of the sun’s radiant energy, the outer wall of the cold storage is generally painted white or light color, so we can clearly It can be seen that the freezer building is different from general industrial and civil buildings. In the design, in order to avoid the destruction of the building structure during the periodical freezing and melting cycle.

The building materials of the medium-sized fruit cold storage and the various parts of the cold storage must not only have sufficient anti-freezing performance, but also prevent the diffusion of water vapor and air penetration, because when outdoor air invades, it will not only increase the cold consumption of the cold storage, but also Moisture is brought into the warehouse, and the condensation of moisture causes the building structure, especially the thermal insulation structure, to be damaged by damp and freezing. Therefore, a moisture-proof and thermal insulation layer should be installed to make the cold storage building have good airtightness and moisture-proof and vapor-proof performance. In addition, the foundation of the medium-sized fruit cold storage is affected by the low temperature, and the moisture in the soil is easily frozen. The volume expansion of the soil after freezing will cause the ground to crack and the entire building structure deformation, which will seriously make the cold storage unusable. In addition to effective insulation, the floor must also be treated under the insulation to prevent the soil from freezing.

　　 In short, the construction and design of medium-sized fruit cold storage must be strictly insulated, airtight, robust and frost-resistant to ensure the service life of the cold storage and extend the service life of the cold storage.