|本期目录/Table of Contents|

[1]喻九阳,陈　琦,林　纬*,等.垂直平板电极电化学除垢的气-液流动研究[J].武汉工程大学学报,2020,42(03):338-344.[doi:10.19843/j.cnki.CN42-1779/TQ.201910033]
　YU Jiuyang,CHEN Qi,LIN Wei*,et al.Gas-Liquid Flow of Electrochemical Descaling with Vertical Plate Electrode[J].Journal of Wuhan Institute of Technology,2020,42(03):338-344.[doi:10.19843/j.cnki.CN42-1779/TQ.201910033]
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垂直平板电极电化学除垢的气-液流动研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
42
期数:
2020年03期
页码:
338-344
栏目:
机电与信息工程
出版日期:
2023-03-14

文章信息/Info

Title:
Gas-Liquid Flow of Electrochemical Descaling with Vertical Plate Electrode
文章编号:
1674 - 2869（2020）03 - 0338 - 06
作者:
喻九阳; 陈　琦; 林　纬*; 汪　威; 王众浩; 夏文凤
化工装备强化与本质安全湖北省重点实验室（武汉工程大学），湖北 武汉 430205
Author(s):
YU Jiuyang ; CHEN Qi;  LIN Wei*;  WANG Wei; WANG Zhonghao;  XIA Wenfeng
Hubei Key Laboratory of Chemical Equipment Intensification and Intrinsic Safety（Wuhan Institute of Technology）， Wuhan 430205 ，China
关键词:
电化学; 除垢; 气泡; 传质; 垂直电极
Keywords:
electrochemistry;  descaling;  bubble;  mass transfer;  vertical electrode
分类号:
TQ085
DOI:
10.19843/j.cnki.CN42-1779/TQ.201910033
文献标志码:
A
摘要:
为研究电化学除垢方法中垂直平板电极反应器的气-液流动特性及其对除垢的影响规律，利用粒子图像测速技术分别研究了电解电压和溶液硬度的变化对垂直平板电极间流场的影响。实验结果表明：垂直平板电极间的流动主要分为气泡上浮推动溶液流动形成的气泡驱动对流和电极周围的高空隙率引起溶液向电极流动的自然对流。在0~30 V的电压下产生的气泡驱动对流的速度不超过0.01 m/s，自然对流的最大速度不超过0.001 5 m/s。流场内溶液对流主要受气泡运动的影响，适当增大电极板产生的气泡量可以强化气泡驱动对流，但过量的气泡聚集在极板周围会减弱气泡驱动对流强度，增大溶液电阻，不利于污垢从溶液中分离。这对于探索反应器中的气-液两相流行为以及优化电化学除垢方法有重要意义。
Abstract:
In order to study the gas-liquid flow characteristics of the vertical plate electrode reactor in the electrochemical descaling method and its influence on descaling， the particle image velocimetry technique was used to study the influence of the electrolytic voltage and solution hardness on the flow field between vertical plate electrodes. The experimental results show that the flow between the vertical plate electrodes is mainly divided into the bubble-driven convection and the natural convection. The former convection is formed by the floating of air bubbles. The latter convection is caused by the high porosity around the electrode， which leads to the solution flowing to the electrode. The velocity of bubble-driven convection generated at low voltage of 0 -30 V does not exceed 0.01 m/s， and the maximum speed of natural convection does not exceed 0.001 5 m/s. The convection of the solution in the flow field is mainly affected by the movement of bubbles. Increasing the amount of bubbles generated by the electrode plate appropriately can strengthen the bubble-driven convection， but the accumulation of excessive bubbles around the electrode plate will weaken the strength of the bubble-driven convection. Additionally， increasing the resistance of the solution will make the dirt difficult to be separated from the solution. The above findings are of great significance for exploring the gas-liquid two-phase flow behavior of the reactor and helpful for optimizing the electrochemical descaling method.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2019-10-25基金项目：国家自然科学基金（50976080）；武汉工程大学科学研究基金（K201630）；武汉工程大学第十届研究生教育创新基金（CX2018183）作者简介：喻九阳，硕士，教授。E-mail：[email protected]*通讯作者：林　纬，博士，副教授。E-mail：[email protected] 引文格式：喻九阳，陈琦，林纬，等. 垂直平板电极电化学除垢的气-液流动研究［J］. 武汉工程大学学报，2020，42（3）：338-344.
更新日期/Last Update: 2020-07-09