射流鼓泡反应器内气液分散状态检测

黄正梁; 郭晓云; 帅云; 杨遥; 孙婧元; 蒋斌波; 王靖岱; 阳永荣

doi:10.11949/0438-1157.20190460

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射流鼓泡反应器内气液分散状态检测

流体力学与传递现象 | 更新时间：2026-07-24

- 射流鼓泡反应器内气液分散状态检测
- Detection of gas-liquid dispersion in jet bubbling reactor
- 化工学报 2019年70卷第10期页码：3906-3913
- 作者机构：
  
  1.浙江省化工高效制造技术重点实验室，浙江杭州 310027
  2.化学工程联合国家重点实验室，浙江杭州 310027
  3.浙江大学化学工程与生物工程学院，浙江杭州 310027
- 作者简介：
  
  黄正梁（1982—），男，助理研究员，huangzhengl@zju.edu.cn
  孙婧元（1987—），女，讲师，sunjy@zju.edu.cn
- 基金信息：
  
  国家重点研发计划项目(2017YFB0306701);国家自然科学基金项目(21525627;61621002)
- DOI：10.11949/0438-1157.20190460
  中图分类号： TQ 021.9
- 收稿：2019-05-05，
  
  修回：2019-06-05，
  
  网络首发：2026-07-24，
  
  纸质出版：2019-10-05
- 稿件说明：
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黄正梁, 郭晓云, 帅云, 杨遥, 孙婧元, 蒋斌波, 王靖岱, 阳永荣. 射流鼓泡反应器内气液分散状态检测[J]. 化工学报, 2019, 70(10): 3906-3913

HUANG Zhengliang, GUO Xiaoyun, SHUAI Yun, YANG Yao, SUN Jingyuan, JIANG Binbo, WANG Jingdai, YANG Yongrong. Detection of gas-liquid dispersion in jet bubbling reactor[J]. CIESC Journal, 2019, 70(10): 3906-3913
黄正梁, 郭晓云, 帅云, 杨遥, 孙婧元, 蒋斌波, 王靖岱, 阳永荣. 射流鼓泡反应器内气液分散状态检测[J]. 化工学报, 2019, 70(10): 3906-3913 DOI： 10.11949/0438-1157.20190460.

HUANG Zhengliang, GUO Xiaoyun, SHUAI Yun, YANG Yao, SUN Jingyuan, JIANG Binbo, WANG Jingdai, YANG Yongrong. Detection of gas-liquid dispersion in jet bubbling reactor[J]. CIESC Journal, 2019, 70(10): 3906-3913 DOI： 10.11949/0438-1157.20190460.

摘要

射流鼓泡反应器内随着射流速度的增大，先后经历气泛、载气和完全分散三种气液分散状态。本文在射流鼓泡反应器实验装置中，利用Pavlov管测量气体分布器上方壁面附近的液速波动信号，发现液速标准差和时均液速随射流速度的增大均依次出现第一平稳段、上升段、下降段和第二平稳段，其中，第一平稳段对应气泛状态，上升和下降段对应载气状态，第二平稳段对应完全分散状态。据此提出了临界射流速度的判断准则：第一平稳段与快速上升段的交点对应的射流速度为泛点射流速度

，下降段与第二平稳段的交点对应的射流速度为完全分散射流速度

jcd

。与目测法相比，液速标准差分析得到的

的平均相对偏差为5.82%，

jcd

的平均相对偏差为18.2%；时均液速分析得到的

的平均相对偏差为5.86%，

jcd

的平均相对偏差为12.1%。研究还发现泛点射流速度随表观气速的增大而增大。

Abstract

In the jet bubbling reactor

as the liquid jet velocity increases

the gas-liquid dispersion shows three states including the flooding

and complete dispersion. In this work

the liquid velocity near the wall above the gas distributor of the jet bubbling reactor was measured by the Pavlov tube to identify the aforementioned three dispersion states. It was found that the standard deviation of liquid velocity and the average liquid velocity both appeared four stages with the increase of jet velocity

which included the first plateau

the ascending stage

descending stage and second plateau. Wherein

the first plateau corresponded to the flooding state

the ascending and descending stages corresponded to the loading state

and the second plateau corresponded to the complete dispersion state. Therefore

the criterion for the critic

al jet velocity was proposed. The jet velocity at the intersection of the first plateau and the ascending stage was the flooding velocity

and the jet velocity at the intersection of the descending stage and the second plateau was the complete dispersion velocity

jcd

. Compared with the visual observation method

the average relative deviation of

obtained by liquid velocity standard deviation analysis was 5.82%

the average relative deviation of

jcd

was 18.2%; the average relative deviation of

obtained by time-averaged liquid velocity analysis was 5.86%

and the average relative deviation of

jcd

was 12.1%. The study also found that the blunt jet velocity increases as the superficial gas velocity increases.

关键词

Keywords

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