【摘要】 概述了苯酐凝华过程的传热传质机理及热熔冷凝箱的结构特点和优化参数，并给出热熔冷凝箱开发成果的应用情况更多还原

【Abstract】 The mechanism of sublimation process of Phthalic Anhydride is investigated.Zig Zag zigmented finned tube has been designed and tested.New Switch Condenser for 60 grams or higher consistency Phthalic Anhydride process has been developed and applied to the Phthalic Anhydride factories rapidly.The feature of New Switch Condenser has been described.更多还原