Cold storage is *inly used for frozen processing and refrigeration of food. It keeps the indoor temperature low through *nual refrigeration. The cold storage design building is different from the general industrial and civilian buildings and has its unique structure. The walls, floors, and flat roofs of the cold storage are covered with a certain thickness of ther*l insulation to reduce the heat from the outside world. In order to reduce the radiation energy that absorbs the sun, the su*ce of the outer wall is generally painted white or light color when designed.
Cold storage design:
The first step in the cold storage design is *inly through the construction of the cold storage, *terials, equipment, as well as the local cli*te and engineering requirements. According to the design requirements, including the engineering and cli*te conditions, the cold storage site is first selected.
The second step is to design the insulation and moisture protection structure of the cold storage and to select the *terial structure according to the requirements of the cold storage. Then according to the heat transfer layer coefficient of the *terials provided and the design requirements of the cold storage, the cooling load is calculated and sum*rized, and then the opti*l design scheme of the cold storage system is obtained based on the load calculation. Next, the type selection of compressors and auxiliary equipment includes the parameters and number of tables of compressors. The auxiliary equipment includes condensers, intermediate coolers, oil separators, high-pressure reservoirs, and cooling fans. The next step is the design of the cold storage system pipeline, the design requirements of the system pipeline and valves, the flow rate requirements of the pipeline and the design of the evaporator supply pipe.