介绍了利用HYSYS流程模拟技术，通过采用定义虚拟组分来计算增设换热器换热面积的计算方法。
This paper introduces the method for calculating the heat exchange area of the new heat exchanger by adopting HYSYS process simulation technology and definition of virtue components.
首先利用原油实沸点蒸馏数据将原油切割为一定数目的虚拟组分，并以此作为常减压装置初馏塔的输入。
First of all, crude oil was cutting into several pseudo components which act as input of primary tower according to its true boiling points data.
首先利用原油实沸点蒸馏数据将原油切割为一定数目的虚拟组分，并以此作为常减压装置初馏塔的输入。
First of all, crude oil was cutting into several pseudo components which act as input of primary tower according to its true boiling points data.
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