石油炼制与化工 ›› 2018, Vol. 49 ›› Issue (1): 65-69.

• 基础研究 • 上一篇    下一篇

管式气液分配器数值模拟研究

柳士开,薄守石,李伟,侯亚飞,孙兰义   

  1. 中国石油大学(华东)重质油国家重点实验室
  • 收稿日期:2017-06-19 修回日期:2017-09-11 出版日期:2018-01-12 发布日期:2018-01-24
  • 通讯作者: 孙兰义 E-mail:sunlanyi@163.com
  • 基金资助:
     

NUMERICAL SIMULATION STUDY ON TUBULAR GAS-LIQUID DISTRIBUTOR

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  • Received:2017-06-19 Revised:2017-09-11 Online:2018-01-12 Published:2018-01-24
  • Contact: Lanyi Sun E-mail:sunlanyi@163.com
  • Supported by:
     

摘要: 气液分配器是固定床加氢反应器的重要内构件。选用欧拉-欧拉多相流模型和RNG k-ε 湍流模型对管式分配器性能进行数值模拟,对比了3种分配器加碎流板和不加碎流板时的分配性能。结果表明,增设碎流板后,分配器的分配性能有了显著的提高,但分配器的压降增加;侧圆孔90°交叉布置加碎流板的斜口管分配器分配性能最佳;增设碎流板后,气体进入分配器的方式及溢流孔的布置方式对分配器分配性能的影响大大降低。

关键词: 气液分配器, 数值模拟, 碎流板, 分配性能

Abstract: Gas-liquid distributor is an important internal component of fixed bed hydrogenation reactors. Performance of tubular distributors was simulated using Euler multiphase model and RNG turbulence model. Three types of tubular distributors were studied and each distributor with broken flow plate or not was compared. The results showed that the distribution performance of the distributor is improved significantly after adding the broken flow plate. However, the pressure drop of the distributor is increased. The distribution performance of the inclined pipe distributor with a broken flow plate and cross arrangement of side hole with 90o is the best. The broken flow plate greatly reduces the influence of the way the gas entering the distributor and the arrangement of overflow hole on distribution performance.

Key words: gas-liquid distributor, numerical simulation, broken flow plate, distribution performance

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