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蜗壳式多通道气液旋流分离器结构优化及分离特性研究
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作者 李彦熹 王晔春 +6 位作者 谢向东 王进芝 王江 周煜 潘盈秀 丁文涛 郭烈锦 《化工学报》 EI CSCD 北大核心 2024年第8期2875-2885,共11页
为实现宽流量范围下气液两相流的高效分离,基于螺旋线理论设计出了一种新型蜗壳式多通道旋流分离器,并对其结构进行了优化设计。采用数值模拟方法将其与传统单入口气液旋流分离器进行性能对比,结果表明,新型蜗壳式多通道旋流分离器能有... 为实现宽流量范围下气液两相流的高效分离,基于螺旋线理论设计出了一种新型蜗壳式多通道旋流分离器,并对其结构进行了优化设计。采用数值模拟方法将其与传统单入口气液旋流分离器进行性能对比,结果表明,新型蜗壳式多通道旋流分离器能有效解决单个入口所引起的空气核偏心现象及振荡问题,分离器内流场在不同入口含气率条件下均具有显著的轴对称特点,稳定性也更高,溢流带液量明显下降。虽然整体压损更大,但能够有效抑制二次流的产生,且在入口含气率越高时抑制效果越明显。 展开更多
关键词 气液两相流 离心分离 优化设计 蜗壳 二次流
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Experimental investigation on separation characteristics of axial cyclone separator 被引量:1
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作者 WANG JinZhi WANG YeChun +4 位作者 HAN JinZai XU Qiang XIE XiangDong pan yingxiu GUO LieJin 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2023年第11期3231-3244,共14页
Axial cyclone separator has been widely applied in chemical production as an efficient gas-liquid separation device.In this study,a new axial cyclone separator with integrated swirler and exhaust pipe is designed to a... Axial cyclone separator has been widely applied in chemical production as an efficient gas-liquid separation device.In this study,a new axial cyclone separator with integrated swirler and exhaust pipe is designed to achieve the development goal of compact structure for advanced engine,and the distribution characteristics of swirling flow patterns as well as the variation in separation characteristics are investigated under slug flow pattern.Based on flow visualizations and fluctuation characteristics of pressure signals,three typical flow patterns,namely,slug flow,swirling intermittent flow,and swirling annular flow,in the horizontal swirling separation flow are characterized.It is investigated how the inlet conditions affect the separation characteristic parameters.The separation purity and extreme points of the air separation efficiency are independent of the inlet liquid flow rate.The separation pressure drop is quadratically related to the inlet air flow rate.Based on the drift-flux model and other methods,the prediction methods for the air separation efficiency and pressure drop are proposed,and the prediction accuracy is within±20%,which may provide instructions for the practical application of axial cyclone separator. 展开更多
关键词 axial cyclone separation gas-liquid two-phase flow flow pattern in the swirling flow separation characteristics
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