Food cold storage construction matters needing attention

The construction of various types of food cold storage is to meet the needs of people's material production and cultural life. The construction of cold storage is mainly for food cold processing and storage protection, food cold storage including storage of food warehouse, ammonia (or freon) refrigeration room, distribution room and foundation and other ground buildings.

Cold storage is the use of artificial refrigeration method for cold processing of food that is easy to corrode, in order to adjust the light season, to ensure that the market demand for food to meet, cold storage is also the implementation of export tasks and do long-term reserve. In other words, the cold storage is the city's refrigerator. It ensures the supply of a city's food needs.

Food cold storage is restricted by the production process conditions, it is easy to corrode food under low temperature conditions, cooling-preservation-freezing-refrigeration and other process operations; to maintain the color, taste and nutritional value of food to provide the necessary conditions. According to the different preservation temperature of food, the cold storage temperature is generally -40-0. Therefore, cold storage buildings to be able to withstand low temperature conditions, the need for cold storage buildings to take low temperature treatment technical measures.

Food cold storage is both a factory and a warehouse.

Cold storage is not only a storage of food warehouse, food cold storage or food cold processing production manufacturers, it must meet the requirements of a variety of different food cold processing, to ensure that the food external transport conditions and packaging specifications and other facilities,

2. Insulation

The temperature inside the food cold storage warehouse generally has a large temperature difference with the outside of the warehouse, and the temperature difference is large. In order to reduce the loss of cold and cool, it is necessary to block the external heat from entering the cold storage through the peripheral structure of the cold storage warehouse. Therefore, the maintenance structure of the cold storage building must be set with thermal insulation layer.

3. Air barrier and moisture-proof

The enclosure structure of the cold storage is set up with a heat insulation layer to reduce the heat transfer, but in the heat transfer process, the water vapor in the atmosphere is also transferred from the high temperature side to the low temperature side with the temperature difference (that is, the water vapor partial pressure is high One side is transferred to the low water vapor partial pressure measurement). When water vapor passes through the enclosure, it condenses into moisture in the material pores of the enclosure. When water is cold, it forms frost or ice, which greatly increases the thermal conductivity of the material, and the thermal insulation material is gone.

4. Cold bridge

The heat insulation structure of food cold storage mostly adopts the construction method of internal heat insulation, and there must be many cold bridges in the structure. In order to prevent the influence of heat transfer on the temperature in the cold storage and the damage to the building, the cold bridge must be dealt with and prevented.