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- At present, a few CFD simulations of countercurrent of liquid and gas in the bubble column are found. 目前,关于鼓泡塔内气液逆流操作的CFD模拟计算还很少。
- In this article, we present a new quasi single-fluid model according to the flow characteristic of bubble column of countercurrent of liquid and gas. 我们根据气液逆流鼓泡塔内的流动特点,提出了新的拟单相流模型,通过计算发现鼓泡塔内存在三个流动区域:核心区、零轴向速度区和塔壁附近回流区。
- In the course of experiments,it was found that the places of gas hydrate formation and its existing in bubble column were different under the conditions of reactant liquid recycled and unrecycled. 结果表明,反应液体在循环和不循环的情况下,水合物在鼓泡塔内生成、存在的位置不同。
- Comparing with that of bubble column, the liquid axial backmixing apparently decreases after inserting the baffles. 而且与空塔比较,液相轴向返混系数明显减小。
- In Gas Liquid Chromatography a mixture of vapors is carried in a stream of helium (carrier gas) through a column. 在气液色层分析中,蒸气的混合物由源源不断的氦气(载气)带入柱中。
- In the experiment, the hot-film anemometry was applied to the countercurrent bubble column and local measurements of gas hold-up were obtained. 实验中应用热膜流速仪对逆流鼓泡塔气液两相流场进行了多点测量,并通过对测量电压信号的分析处理得到了各测量点的气含率。
- The radiant orifice gas distributor and internals were set in the slurry bubble column to distribute the gas uniformly and optimize the suspension effect of solids. 为了实现气体均布和优化固体悬浮效果,在浆态床内设置辐射式锐孔气体分布器和内部构件。
- To better the liquid velocity distribution in the core of the column,the resistance internals with lateral fins on a vertical bar were installed on the(center) line of the bubble column. 针对大型鼓泡塔径向流速分布不均易导致中心区域气体短路的问题,提出了在中心区域布置阻尼内构件改善流速分布的方案。
- Note that the velocity not too quickly in order to avoid photoptic liquid bubble pinholes membrane surface. 夺纲速率必给功迟,以免感平液起泡、膜背表现针孔。
- According to the liquid flow characteristic of bubble column, we hope to decrease axial backmixing of the liquid by putting some baffles which have certain distribution rule in the bubble column. 根据鼓泡塔内液相流体的流动特点,我们希望在鼓泡塔内加入了一定数量按照一定规律排列的挡板,能够减弱鼓泡塔的液相轴向返混。
- The heat transfer between an immersed horizontal tube and the two-phase flow in a bubble column were measured. 本研究对鼓泡塔中气液两相流与浸没在其中的水平管间的对流传热系数进行了实验测定。
- The rheologic parameters are mainly influenced by gas liquid ratio and base mud properties. 流变参数主要受气液比和基浆性能影响。
- The catalytic gas liquid isotope exchange reaction is a good method to prepare tritiated triptolid. 采用催化气液同位素交换法制备了氚化雷公藤甲素,探讨了反应时间和反应介质对反应产额的影响。
- A mathematic model was established to discuss effects of mass transfer on Fischer-Tropsch synthesis in slurry bubble column reactor. 采用建立数学模型的方法在鼓泡浆态床反应器体系中讨论了传质对费托合成反应行为的影响。
- The working principle of gas liquid separator for hydrogenated unit was recommended. 介绍了加氢装置气液分离器的工作原理。
- The large eddy simulations (LES) with the Euler-Euler approach is used to study the gas-liquid flow in a partially aerated bubble column. 摘要采用气液两相流动的欧拉-欧拉大涡模拟,研究了偏心进气式鼓泡塔内气液两相湍流流动。
- The new high effective gas liquid mass transfer stirred reactor: Self mixing Disk Turbine(SDT) was designed. 提出了一类新型高效气液传质设备:自混式圆盘涡轮搅拌设备(SDT),以提高气液反应设备的传质效果,降低剪切力。
- As the liquidity bubble unwinds, their currencies should weaken and inflation should accelerate. 当流动性泡沫逆转的时候,这些经济体的货币将会变软通胀将会加速。
- Theabove correlations lay the foundation of further study on the hydrodynamics of Non-Newtonian slurryin a bubble column. 为进一步研究非牛顿型浆液鼓泡塔流体力学行为打下基础。
- The system of vitriol is very complex and there is no a appropriate mathematical model to veraciously describe the Gas Liquid Equilibrium so far. 硫酸体系非常复杂,到目前为止仍然没有合适的数学模型能够准确描述硫酸体系的气液相平衡。