基于超声速制冷效应旋流分离技术的研究进展

Research Progress in Swirl Separation Technology Based on Supersonic Refrigeration Effect

基于超声速制冷效应的旋流分离技术是一种从天然气中脱水、脱重烃及其他杂质的新方法。本文介绍了超声速旋流分离器典型结构和Laval喷管设计的研究进展,总结了单组分和双组分气体凝结相变理论,重点归纳了进出口参数和喷管结构参数对超声速流动凝结特性的影响,梳理了该技术在天然气液化和脱除酸性气体等领域的新应用,最后对超声速旋流分离技术的未来提出展望。

Swirl separation technology based on the supersonic refrigeration effect is a new method to remove water,heavy hydrocarbons,and other impurities from natural gas.In this article,first,the typical structure of a supersonic swirl separator and Laval nozzle design are reviewed;thereafter,the condensation phase transition theories of one-component and two-component gases are summarized.Subsequently,the effects of inlet and outlet parameters and nozzle structure parameters on the condensation characteristics of supersonic flow are summarized;finally,new applications in the fields of natural gas liquefaction and acid gas removal are reviewed.Although many domestic and international scholars have conducted considerable research,some problems still remain,and future prospects for supersonic swirl separation technology have been proposed.