化工进展 ›› 2016, Vol. 35 ›› Issue (07): 1975-1979.DOI: 10.16085/j.issn.1000-6613.2016.07.006

• 化工过程与装备 • 上一篇    下一篇

固定床反应器中气液分配器的流体力学性能

张洪旭1,2, 蔡连波2, 王强1, 陈强2, 周明东1, 臧树良1   

  1. 1. 辽宁石油化工大学石油化工学院, 辽宁 抚顺 113001;
    2. 中国石化洛阳工程有限公司, 河南 洛阳 471003
  • 收稿日期:2015-11-24 修回日期:2015-12-31 出版日期:2016-07-05 发布日期:2016-07-05
  • 通讯作者: 王强,副教授,博士,研究方向为离子液体催化应用。E-mail:qwang0124@126.com。
  • 作者简介:张洪旭(1988-),男,硕士研究生,研究方向为加氢反应器内构件。E-mail:zhanghongxu179@163.com。

Hydrodynamic performance of a gas-liquid distributor in fixed bed reactors

ZHANG Hongxu1,2, CAI Lianbo2, WANG Qiang1, CHEN Qiang2, ZHOU Mingdong1, ZANG Shuliang1   

  1. 1. School of Petrochemical Technology, Liaoning University of Petroleum &Chemical Technology, Fushun 113001, Liaoning, China;
    2. Luoyang Petrochemical Engineering Corporation, SINOPEC, Luoyang 471003, Henan, China
  • Received:2015-11-24 Revised:2015-12-31 Online:2016-07-05 Published:2016-07-05

摘要: 设计了一种底部带有碎流板的新型管式气液分配器。以水和空气代替工业上的原油和氢气进行冷模实验。实验过程为:水由水箱经水泵抽出,经液体流量计计量后进入实验塔上部的气液扩散器,气液两相流经急冷箱冷却后同时向下通过分配器。进入到接液装置的液体通过橡胶管导入到放置在地面上的17个标有编号的量筒中,未进入接液装置的液体流入水箱,气体则排放到大气中。最后用U形管差压计测量分配器的压力降。实验研究了该分配器的分配性能、压力降损失、气液相操作弹性和分布不均度,优化并确定该分配器的结构形式和结构参数。结果表明,该分配器的最佳工作条件为:液相量为0.3m3/h左右,气相量为20~30m3/h。

关键词: 固定床, 流体力学, 反应器, 气液两相流

Abstract: A new type of gas-liquid distributor with broken flow plate at the bottom of the distributor was designed. In the cold model experiment, crude oil and hydrogen was replaced by water and air. The experiment process is that water was pumped out from the water tank and flowed into the gas-liquid diffuser of the top of test tower after being measured by liquid flow meter. The gas-liquid flow were cooled by chilled box and flowed down through the distributor at the same time. The liquid entered the collecting device was guided into 17 numbered cylinders which were placed on the ground by rubber tubes. The left liquid entered the water tank. The gas was discharged into the atmosphere. Finally, the pressure drop was tested by U shaped tube differential pressure gauge. The distribute performance, pressure drop loss, operation flexibility of the vapor and liquid phases and distribution uniformity of the distributor was studied. The structural style parameters were also optimized and determined. Result showed the best technological conditions of the distributor were that the flow of liquid phase is 0.3m3/h, the flow of vapor phase is 20-30m3/h.

Key words: fixed-bed, fluid mechanics, reactors, gas-liquid flow

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