The working principle of the heat pump dryer is: using the refrigerant to be compressed by the compressor, becoming a high-temperature and high-pressure gas, and entering the condenser to release heat, the heat discharged from the condensation heat is sent to the baking room by the circulating fan, and the air in the baking room is heated (up to 75 ° C). As the air temperature rises, the moisture in the drying material will gradually evaporate, and then the fresh air dehumidification system will perform the dehumidification to achieve the drying effect.Heating pump dryer is suitable for drying fresh chicken breast slice ,vegetable,meat,seafood etc.