精馏塔设计说明书1(3)

7．5液相负荷下限线--------------------------------------------------------------------------------17 8．热量衡算---------------------------------------------------------------------------------------------------17 8．1加热介质的选择--------------------------------------------------------------------------------17 8．2冷却剂的选择------------------------------------------------------------------------------------18 8．3热量衡算------------------------------------------------------------------------------------------18 9．各接管尺寸的确定-------------------------------------------------------------------------------------19 9．1进料管------------------------------------------------------------------------------------------------19 9．2釜残液出料管-------------------------------------------------------------------------------------20 9．3回流液管--------------------------------------------------------------------------------------------20 9．4塔顶上升蒸汽管----------------------------------------------------------------------------------20 9.5甲苯蒸汽进口管-------------------------------------------------------------------------------------20

三．设计结果一览表（附表格）---------------------------------------------------------------------20 四．流程示意简图------------------------------------------------------------------------------------------21 五．个人总结------------------------------------------------------------------------------------------------21 六．参考文献------------------------------------------------------------------------------------------------22

七．附图---------------------------------------------------------------------------------------------------------23