段塞流气塞破裂后管线压降特性
发布时间:2018-01-04 19:23
本文关键词:段塞流气塞破裂后管线压降特性 出处:《化学工程》2017年04期 论文类型:期刊论文
【摘要】:在气液两相流动中,气塞形成后可能会由于地形变化、输送设备、或其他人为因素引发破裂,引发流体的流动状态变化及压力波动。为了深入了解段塞流流动过程中气塞破裂机理,建立了段塞流流动过程中气塞破裂的物理数学模型,以气液两相流流动参数和管线几何尺寸为研究对象,对气液两相流气塞破裂所引发的压力波动进行分析。结果表明:其他条件相同时,相同长度气塞破裂引发的气塞上游管线压力降低的幅度随上游管线持液率的增大而逐渐增大,随管道直径、液塞尺寸、混合物流速的增大而逐渐减小。
[Abstract]:In gas-liquid two-phase flow, the formation of gas plug may be caused by topographic changes, transportation equipment, or other human factors. In order to understand the fracture mechanism of gas slug during slug flow, a physical mathematical model of gas slug fracture during slug flow is established. The pressure fluctuation caused by gas slug rupture in gas-liquid two-phase flow is analyzed with the parameters of gas-liquid two-phase flow and the geometry of pipeline. The results show that the other conditions are the same. The decrease of the pressure of the upstream pipeline caused by the rupture of the same length gas plug increases gradually with the increase of the liquid holdup of the upstream pipeline, and decreases with the increase of the diameter of the pipeline, the size of the plug and the flow rate of the mixture.
【作者单位】: 长庆油田分公司规划计划处;西安长庆科技工程有限责任公司;中国石油大学(华东)储运与建筑工程学院;北京工业大学环境与能源工程学院;
【基金】:中央高校基本科研业务费专项资金(14CX02211A,12CX04070A)
【分类号】:O359.1
【正文快照】: 气液两相和多相段塞流广泛存在于石油、化工工业中,由于其流动的间歇性和相分布的复杂性,目前对其研究仍处于探索阶段[1-3]。在气液两相流动中,气塞形成后,可能会由于地形变化、输送设备、或其他人为因素引发破裂。气塞破裂后,由于作用在流体上力的变化,会导致流体的流动状态,
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