FREEZE-DRYING SYSTEM AND FREEZE-DRYING METHOD

摘要

An object is to provide a freeze-drying system and a freeze-drying method which can improve cleanliness and productivity. The present invention relates to a freeze-drying system in which freeze-drying is performed by sublimating moisture frozen by cooling an object. The system includes a cooling device (3) which generates cold with an air cycle in which air is used as a refrigerant, a freeze-drying chamber (2) accommodating a heat exchange unit which causes heat exchange between the refrigerant and the object, and a control unit (11) which controls a cooling capacity of the cooling device. The control unit adjusts the temperature in the freeze-drying chamber to a predetermined target temperature by controlling an amount of the cold generated in the cooling device.

主权项

1. A freeze-drying system in which freeze-drying is performed by sublimating moisture frozen by cooling an object, and collecting the sublimated moisture with a cold trap, the freeze-drying system comprising:
a cooling device which generates cold with an air cycle in which air is used as a refrigerant; a freeze-drying chamber accommodating a heat exchange unit which causes heat exchange between the refrigerant and the object; a cold air supplying mechanism which supplies precooled air into the freeze-drying chamber; and a control unit which controls a cooling capacity of the cooling device, wherein the cold air supplying mechanism includes:
an outer air intake unit which takes in outer air;a cooling unit which cools the outer air by performing the heat exchange between the taken outer air and the refrigerant; anda blower unit which blows the cooled outer air into the freeze-drying chamber, and the control unit adjusts the temperature in the freeze-drying chamber to a predetermined target temperature by controlling an amount of the cold generated in the cooling device.