曲面导向浮阀塔板的实验研究

发布时间：2019-03-22 16:07

【摘要】：板式塔是工业分离过程中的重要设备,而塔板作为板式塔的核心部件在其中起着至关重要的作用。新型塔板的开发和塔板性能的研究有着重要的实际价值。本文提出了一种新型的浮阀塔板-曲面导向浮阀塔板,并对其流体力学性能和传质性能进行了研究。流体力学性能的研究包括塔板压降、雾沫夹带、漏液,在矩形塔内以空气-水体系分别测定了板间距、出口堰高、阀孔动能因子、液流强度对它们的影响。传质性能实验以空气-水-CO2体系测定了塔板的默弗里板效率。此外对相关的流体力学性能数据进行了关联,得到了塔板压降、雾沫夹带率和泄漏点孔速的关联式,为工业应用及曲面导向浮阀塔板的进一步研究提供了参考依据。实验结果表明,曲面导向浮阀塔板操作弹性大、处理能力大并且板效率较高,有着优良的流体力学性能和传质性能。利用Aspen Plus流程模拟软件对异辛烷生产工艺中的脱正丁烷及脱异丁烷流程进行了模拟计算,得到了相关的水力学数据。结合本实验的曲面导向浮阀塔板的流体力学数据和传质实验数据,对脱异丁烷塔塔内件进行了设计。设计结果表明,用曲面导向浮阀塔板设计的脱异丁烷塔内件,在操作弹性范围内能保证脱异丁烷塔的正常运行。
[Abstract]:Plate tower is an important equipment in the process of industrial separation, and tray, as the core component of plate tower, plays an important role in it. The development of new tray and the research of tray performance have important practical value. In this paper, a new type of floating valve trays-curved guided floating valve trays is presented, and its hydrodynamics and mass transfer properties are studied. The effects of plate spacing, outlet Weir height, kinetic energy factor of valve hole and liquid flow intensity on plate spacing, outlet Weir height, valve hole kinetic energy factor and liquid flow intensity were measured in rectangular tower by air-water system, including pressure drop of tray, entrainment of entrainment and leakage of liquid. The Murfrey plate efficiency of the tray was measured by air-water-CO2 system in the mass transfer experiment. In addition, the correlation equations of pressure drop, entrainment rate of entrainment and hole velocity of leakage point are obtained, which can be used as reference for industrial application and further study of surface guided floating valve trays, and the correlation between the relevant hydrodynamic performance data and the pressure drop of trays, entrainment rate of entrainment and hole velocity of leakage point are obtained. The experimental results show that the surface guided floating valve tray has the advantages of large operation elasticity, high handling capacity and high plate efficiency, and has excellent hydrodynamic and mass transfer properties. The debutane and deisobutane processes in isooctane production process were simulated by Aspen Plus process simulation software, and the relevant hydraulic data were obtained. The internal parts of the deisobutane tower were designed based on the hydrodynamics data and mass transfer experimental data of the surface guided floating valve tray in this experiment. The design results show that the inner parts of the deisobutane tower designed with the curved guide floating valve tray can ensure the normal operation of the deisobutane tower within the operating elastic range.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ053.5

【参考文献】