In cold storage, the so-called "cold bridge" is actually a bridge to transfer heat. The refrigeration equipment in Guizhou suggests that in the storeroom or library and outside the storeroom adjacent to the different storehouse temperatures, a cold bridge will be formed due to the interruption of the connection components of the building structure or the insulation layer. For example, if the pipeline goes through the wall, it will cause the rice husk layer to sink. The cold bridge of the connecting component is due to the poor heat insulation property of the material. It is easy to freeze and frosting at the cold bridge. If it is not treated, the heat will be introduced in large amount, the construction area of the cold storage will be gradually expanded, and the heat insulation layer, structural component will be damaged, and even the cold storage is damaged.
In order to prevent the generation of cold bridges, cold storage manufacturers can deal with the following problems when building cold storage.
1, sticking top method: when the temperature difference of two adjacent storeroom in small cold storage is above 5 degrees Celsius, the insulation material of the partition wall should be connected with the heat insulation material on the floor, at the top of the wall and the high side of the reservoir temperature, the insulation layer within the range of 1.2 meters between the bottom of the top plate and the insulation layer of the insulation wall, so as to reduce the floor and wall of the adjacent two storeroom as far as possible. A cold bridge is produced.
2, heat insulation rod treatment: when the steel bars are used to reinforce the cold storage, it is necessary to use the round steel with simple shape and small section, so as to minimize the influence of heat conduction. The hardwood insulation block is set up in the steel bar to cut off the cold bridge made of steel bar.
3, the treatment of wall through pipes: as far as possible, through the wall pipes, we should concentrate on the holes as far as possible, so as to prevent the insulation layer from breaking through the walls. The walls of the reserved walls are enclosed in boxes around the board, and the steam isolation layer is completed. After the cold store is built, it is filled with cork or cork chips. The use of rice husk insulation, to prevent the wooden box at the bottom of the rice husk separation, the formation of cold bridge.