Project introduction: The project requires a cooling area of 3368㎡, of which the cold storage tonnage is 3,500t, the storage temperature is -22~-25℃, adopted the CO2 secondary unit independently developed by Shenzhou Refrigeration. The cold storage is equipped with a gas leak detection device, a cold storage call for help, and remote monitoring of the Shenzhou cold cloud intelligent management platform, which is energy-saving, efficient and safe.