真空精馏是一种应用非常广泛的化工单元操作,真空精馏系统的优化设计可以改进操作的稳定性和经济性。文章概括了真空精馏塔顶系统的组成和特点,针对真空精馏系统中如何减小压降和稳定操作总结了可靠、良好的工程应用,包括真空负荷的估算、真空设备的选择,不同压力控制方案的比较,真空冷凝器的结构,塔顶配管的优化、设计等。
Vacuum distillation was widely applied in chemical industry.Reasonable and optimized design can reduce unit investment and operation cost , which was helpful to stable operating.Good engineering practices , including the estimation of vacuum load , selection of vacuum equipment , description of different pressure control plan , and vacuum condenser design , and pipe routing optimization , were summarized.