摘要
作者应用B.Linnhoff等人提出的狭点技术,对年产6万吨苯乙烯装置换热网络的50余个换热器进行了分析和评价,并提出了两项改进意见。改进结果可节省3.4 MPa的高压蒸汽3.18 t/h,冷却水48 t/h,另外对换热网络最小温差的选择进行了讨论。
Pinch point technology, proposed by B. Linnhoff, was used for analysis and evaluation of the heat exchanger network in a 60, 000 t/a styrene plant, which involves about 50 heat exchangers. According to the results, two suggestions for adjusting the network were proposed. 4.18 t/h high pressure steam and 48 t/h cooling water can be saved by the suggested measures. Finally, the method of determining the minimum temperature difference for heat exchanger network was discussed.
关键词
苯乙烯装置
热集成
换热网络
heat exchanger network, heat integration, heat pinch point, styrene plant.
