The refrigeration device mainly provides effective time-sharing and continuous cooling for the saccharification system and fermentation system. The refrigeration device includes refrigeration units, ice water tanks, cold water tanks, ice water pumps, ice water pipeline valves and other components.

The alcohol-water solution or ethylene glycol solution in the ice water tank is mainly circulated between the cooling water belt and pipeline of the fermentation tank to ensure an effective low-temperature fermentation process.

The core component compressor of the refrigeration unit can be selected from internationally renowned brands such as Bitzer and Gulun, and the refrigeration effect and after-sales service quality are reliably guaranteed. The model of the refrigeration unit is selected according to the required cooling capacity. The conventional ones are 3HP, 5HP, 7HP, 10HP, 15HP, etc.