多管水力除砂器内液-固两相流的数值模拟

发布时间：2018-03-07 10:02

  本文选题：多管式　切入点：除砂器　出处：《高校化学工程学报》2017年03期 　论文类型：期刊论文

【摘要】：通过数值模拟的方法,采用RSM湍流模型对多管式水力除砂器内液-固两相流场进行了研究。研究表明:进液室的流场分布、压力分布影响各单管入口流量及速度分布;除砂器内颗粒运动的轨迹包括储料室捕集和集液室逃逸;将1000个颗粒同时射入除砂器总入口,跟踪每个颗粒得到颗粒的入管比例和分离效率,单管的颗粒入管比例与流量呈正相关,单管分离效率受速度分布影响出现差异;随着颗粒粒径增大,从单管分离出的颗粒在储料罐内的沉降速度也增大;综合各单管的颗粒入管比例和分离效率对除砂器分离系统的结构提出改进方向。
[Abstract]:By means of numerical simulation and RSM turbulence model, the liquid-solid two-phase flow field in a multi-tube hydraulic sand remover is studied. The results show that the flow field distribution and pressure distribution influence the flow rate and velocity distribution at the inlet of each tube. The trajectory of particle movement in the sand remover includes collecting and escaping in the storage chamber, injecting 1000 particles into the total inlet of the sand remover at the same time, tracking each particle to obtain the proportion of the particles entering the pipe and the separation efficiency. There is a positive correlation between the proportion of particles entering the pipe and the flow rate, and the separation efficiency is affected by the velocity distribution, and the settling velocity of the particles separated from the single tube increases with the increase of the particle size. The improvement direction of the structure of sand remover separation system is put forward by synthesizing the ratio of particles into the pipe and the separation efficiency of each single tube.
【作者单位】： 中国石油大学(华东)化学工程学院;
【基金】：山东省自然科学基金项目(ZR2015EM026)
【分类号】：TQ051.8
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本文编号：1578960