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    • 32. 发明专利
    • METHOD FOR MONITORING TEMPERATURE OF DRIED ITEMS IN FREEZE DRYING STAGE IN FREEZE DRYER AND FREEZE DRYER
    • JPH09113133A
    • 1997-05-02
    • JP29361395
    • 1995-10-16
    • KYOWA SHINKU GIJUTSU
    • KOBAYASHI MASAKAZUSAMA RYOJI
    • F26B5/06A23L3/44A61J3/00F26B25/00
    • PROBLEM TO BE SOLVED: To improve a monitoring accuracy of a temperature of item during both pre-freezing and drying stages by a method wherein temperature sensors are arranged at a thermal medium inlet part and a thermal medium outlet part of one or several shelf stages in a shelf, a mean temperature of the item placed on the shelf stage is monitored and recorded in reference to a difference of indicated temperatures of a pair of sensors at the inlet port and the outlet port. SOLUTION: A plurality of shelf stages 1 having thermal medium circulated therein are arranged within a freeze drying chamber 2. Containers 3 such as a tray, a vial tray and an ampule or the like filled with items to be dried are arranged on the upper surfaces of these shelf stages 1. Then, temperature sensors 7 are arranged at each of the locations of a thermal medium inlet port 4 and a thermal medium outlet port 5 in a thermal medium flow passage 6 arranged in an inner cavity of each of the shelf stages 1. A mean temperature of the items in the container 3 arranged on these shelf stages 1 is monitored and recorded in reference to a difference of the indicated temperatures of a pair of temperature sensors 7 at the inlet port and the outlet port. With such an arrangement as above, it is possible to monitor accurately a temperature of the items to be dried during both pre-freezing stage and drying stage.
    • 37. 发明专利
    • FREEZE DRYING DEVICE
    • JPH06257941A
    • 1994-09-16
    • JP4396393
    • 1993-03-04
    • SAWARA YUKIO
    • SAWARA YUKIOOYAMA HIROTAMI
    • A23L3/44F26B5/06F26B25/12F26B25/16F26B25/18
    • PURPOSE:To provide a freeze drying device capable of performing an efficient drying while being freezed by a method wherein a dried item such as vegetable or meat and the like placed in a shallow tray and freezed in it are heated within vacuum. CONSTITUTION:Closing doors which can be freely opened or closed are installed at both right and left end openings and a plurality of heating shelf plates 14 and 16 extending in an axial direction of a drying tank 11 are arranged in multi-stage manner at both right and left sides in the drying tank 11. Each of the heating shelf plates is fixed at a longitudinal surface outside the heating shelf plate against supporting members 18 and 19 vertically installed within the drying tank 11. Transporting boggies 24 and 25 for the dried item containing tray 29 is arranged at a space passage 13 between both right and left groups 15 and 17 of the heating plates so as to be moved in an axial direction of the drying tank 11. Supporting members 20 and 21 extending in a vertical direction for supporting the part spaced apart from an outer longitudinal side surface of each of the heating plates are arranged at both right and left heating plate groups 15 and 17 and the transporting boggie is provided with a pushing mechanism for the mounting shelves for the tray.