The refrigeration bai equipment is a device that combines a refrigerator and a facility that uses du refrigeration. The design and construction of the zhuan refrigeration device is to effectively use cold energy to refrigerate food or other items; to perform product performance tests and scientific research tests at low temperatures; to achieve certain cooling processes in industrial production, or to perform air conditioning . Items must release a certain amount of heat when they are cooled or frozen, and the enclosure structure of the refrigeration device will also transmit a certain amount of heat when in use. Therefore, in order to maintain the low-temperature conditions in the refrigeration device, it is necessary to install a refrigerator to continuously remove these heat, or use the melting of ice or the sublimation of dry ice to absorb the heat.