The invention relates to a
semiconductor refrigeration vacuum freezing dryer capable of realizing
energy recovery. The
semiconductor refrigeration vacuum freezing dryer capable of realizing
energy recovery comprises an annular side wall, a temperature equalizing plate, a
semiconductor refrigerator, a water catcher, a water-cooling radiator, a material chamber, a
vacuum chamber, a vacuum meter, a
thermostat, a controllable power supply, a
vacuum pump and a valve. By adopting a semiconductor refrigerating / heating mode and according to the characteristic of
energy consumption in the freeze-
drying process, heat released from the freezing process is used for
defrosting / deicing and heat released from the
condensation process is used as heat of sublimation. The semiconductor
refrigeration vacuum freezing dryer capable of realizing
energy recovery has the advantages of saving energy by over 30 percent through energy
recovery and
complementation at different stages, saving freeze-
drying time by over 20 percent, effectively improving
drying capacity, expanding application and having advantages when applied in the fields of experiments,
process research, underbrush and the like, along with simple and compact
system, flexibility, convenience, wide temperature controlling range and
rapid response.