螺旋板换热器在粗苯贫富油换热的应用

Application of Spiral Plate Heat Exchanger in Lean and Fat Oil Heat Exchange of Crude Benzene

分析了浮头式列管换热器的故障现象及产生原因,提出改造方案,并根据改造后的实际情况将脱苯塔和贫富油换热器部分的贫油工艺进行了合理改进。该项目具有投资少、工艺合理、操作简单、使生产更加稳定、极大地提高了粗苯生产的开工率和收率、减少生产成本等特点。

The trouble cause of the floating head shell-and-tube heat exchanger is analyzed, and the remaking schedule is put forward. The reasonable improvement of the lean oil technics in crude benzene tower and heat exchanger of lean and fat oil is introduced according to the practical conditions after reconstruction. The item has the advantages such as less investment, reasonable technics, simple operation, more stable production, great improvement in operating rate and yield in production of crude benzene and reduction of production cost.