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In this paper, a dual-throat supersonic separation device with porous wall has been proposed to solve the starting problem of supersonic separator, and the feasibility of the proposed device has been tested numerically and experimentally. Its flow characteristics have been investigated and the effect of some important parameters includ-ing nozzle pressure ratio (RNP), inlet temperature and swirl intensity were examined. In the device, the supersonic flow state and strong centrifugal acceleration of 240000g can be obtained, which are necessary for the condensation and separation of water vapor. The supersonic region in the device enlarged and the shock wave shifted downstream along with the increasing RNP. The separation performance was improved with the increasing RNP and the inlet temperature. The best separation performance in this study was obtained withΔTd=28 K. 相似文献
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随着超音速分离技术的研究和发展,超音速分离设备逐步应用到天然气的脱水脱烃和天然气凝液回收等工艺中。本文介绍了超音速分离技术的发展过程,分析了超音速分离技术的原理以及在天然气工业中的应用,结果表明此技术对提高天然气气液分离效果显著,有助于增加天然气凝液的收率,在天然气工业上有较广阔的应用前景。 相似文献
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柱状气液分离器液相带气特性分析 总被引:1,自引:1,他引:0
分析了柱状气液分离器(GLCC)内气相的运动轨迹。通过实验得到了不同操作参数下的液相带气特性,揭示了液相和气相速度对液相带气的影响。同时,采用可视化研究得到了分离器下部气液两相流型图,分析了不同形态气核的特性。证实了气核是造成液相带气的主要原因,揭示了不同稳定性的气核对液相带气的影响。 相似文献
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The effects of swirls on the mass flow rates and on the natural gas velocity and temperature in a supersonic separator were numerically studied using the Reynolds stress model. An experimental system was set up with moist air as working fluid. The results showed that high swirl strengths decreased the mass flow rates through the supersonic separator. An increase in swirl strength resulted in a reduction and non‐uniform radial distribution of the gas Mach number at the nozzle exit. With moderate swirls, low temperature (–60 °C) and a strong centrifugal field (5 · 106 m s–2) are obtained to condense and separate water and heavy hydrocarbons from natural gas. The experimental results agreed with the simulations demonstrating that strong swirls decreased the mass flow rate. 相似文献
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为探究气体对井下油水旋流器性能的影响规律,针对新型螺旋流道倒锥式旋流器,采用Fluent软件对气液比分别为0.01、0.03、0.05、0.08、0.10时旋流器的油相分布进行模拟分析。通过对比分析发现:不含气时旋流器的分离效率为89.31%;在结构参数和分流比不变的条件下,旋流器分离效率随气液比的增加呈降低趋势,气液比为0.10时,分离效率为36.90%;气液比越大,溢流口的油相体积分数越小,底流口的油相体积分数越大;溢流口和底流口的压力损失随气液比的增大而递减。 相似文献