网孔塔板,亦称钢板网塔板,是一种新式的喷射型塔板,具有处理量大、压降小、重量轻以及特别适用于大型化等优点。因此,自1969年问世以来,颇引人注目,在国外被认为是七十年代最佳塔板之一。1976年5月我厂在北蒸馏装置φ4.5米减压塔上采用网孔塔板,操作基本正常,但塔顶温度偏高150℃。同年10月,上海化工学院 Mesh trays, also known as wire mesh trays, are a new type of jet trays with the advantages of large capacity, small pressure drop, light weight and especially suitable for large scale applications. Therefore, since its introduction in 1969, it has attracted considerable attention and is regarded abroad as one of the best plates in the 1970s. May 1976 I plant in the northern distillation unit φ4.5 m vacuum tower using mesh tray, the operation was normal, but the top temperature is high 150 ℃. In October the same year, Shanghai Institute of Chemical Technology