• •
蔡伟华1,4(), 王玉航1,5, 张文超1,2(), 李少丹3, 刘鑫龙1, 蔡本安1(), 王金成1
收稿日期:
2024-03-20
修回日期:
2024-05-09
出版日期:
2024-07-02
通讯作者:
张文超,蔡本安
作者简介:
蔡伟华(1982—),男,博士,教授,caiwh@neepu.edu.cn
基金资助:
Weihua CAI1,4(), Yuhang WANG1,5, Wenchao ZHANG1,2(), Shaodan LI3, Xinlong LIU1, Ben'an CAI1(), Jincheng WANG1
Received:
2024-03-20
Revised:
2024-05-09
Online:
2024-07-02
Contact:
Wenchao ZHANG, Ben'an CAI
摘要:
将多孔介质发泡技术与文丘里气泡发生器相结合,开发多孔介质-文丘里气泡发生器。以去离子水和空气为工质,进行产气特性可视化实验研究。拍摄观察区域内气泡行为,分析多孔介质-文丘里气泡发生器产气规律,讨论水流量和气流量的影响规律。实验结果表明,与传统文丘里气泡发生器相比,在相同入口Reynolds数下,多孔介质-文丘里气泡发生器产生的气泡Sauter平均直径缩小了25.3%-47.4%,标准差缩小范围为24.4%-62.2%,说明改进的气泡发生器气泡Sauter平均直径更小,气泡粒径更均匀。水流量由5m3/h增大到15m3/h,多孔介质-文丘里气泡发生器产生的气泡Sauter平均直径由892μm减小至293μm,标准差由317μm减小至85μm;气流量由0.3L/min增大到1.8L/min,多孔介质-文丘里气泡发生器产生的气泡Sauter平均直径由328μm增大到482μm。说明水流量增大或气流量减小时,气泡发生器产生的气泡平均直径变小,气泡粒径分布更均匀。相关研究成果为文丘里气泡发生器的优化提供了一种思路。
中图分类号:
蔡伟华, 王玉航, 张文超, 李少丹, 刘鑫龙, 蔡本安, 王金成. 多孔介质-文丘里气泡发生器产气特性实验研究[J]. 化工学报, DOI: 10.11949/0438-1157.20240317.
Weihua CAI, Yuhang WANG, Wenchao ZHANG, Shaodan LI, Xinlong LIU, Ben'an CAI, Jincheng WANG. Experimental study of gas production characteristics of a porous media-Venturi bubble generator[J]. CIESC Journal, DOI: 10.11949/0438-1157.20240317.
测量仪表 | 量程 | 精度 | 数据采集精度 |
---|---|---|---|
涡轮流量计 | 2~20m3/h | 1% | 0.1% |
气体流量计 | 0~2L/min | 1.5% | 0.1% |
压力 | 0~0.6MPa | 0.25% | 0.1% |
压力 | -0.1~0.6MPa | 0.25% | 0.1% |
压力表3 | 0~0.6MPa | 0.25% | 0.1% |
表1 仪表及数据采集精度
Table 1 Instrumentation and data acquisition accuracy
测量仪表 | 量程 | 精度 | 数据采集精度 |
---|---|---|---|
涡轮流量计 | 2~20m3/h | 1% | 0.1% |
气体流量计 | 0~2L/min | 1.5% | 0.1% |
压力 | 0~0.6MPa | 0.25% | 0.1% |
压力 | -0.1~0.6MPa | 0.25% | 0.1% |
压力表3 | 0~0.6MPa | 0.25% | 0.1% |
工况 | 气流量(L/min) | 液体流量(m3/h) | 含气率(%) |
---|---|---|---|
1 | 1.00 | 5.01 | 1.20 |
2 | 1.00 | 7.51 | 0.80 |
3 | 1.00 | 10.00 | 0.60 |
4 | 1.00 | 12.47 | 0.48 |
5 | 1.00 | 14.98 | 0.40 |
6 | 0.30 | 10.11 | 0.18 |
7 | 0.60 | 10.03 | 0.36 |
8 | 0.90 | 10.01 | 0.54 |
9 | 1.20 | 10.00 | 0.72 |
10 | 1.49 | 10.01 | 0.89 |
11 | 1.79 | 10.02 | 1.07 |
表2 多孔介质-文丘里气泡发生器实验工况
Table 2 Experimental conditions of porous media Venturi bubble generator
工况 | 气流量(L/min) | 液体流量(m3/h) | 含气率(%) |
---|---|---|---|
1 | 1.00 | 5.01 | 1.20 |
2 | 1.00 | 7.51 | 0.80 |
3 | 1.00 | 10.00 | 0.60 |
4 | 1.00 | 12.47 | 0.48 |
5 | 1.00 | 14.98 | 0.40 |
6 | 0.30 | 10.11 | 0.18 |
7 | 0.60 | 10.03 | 0.36 |
8 | 0.90 | 10.01 | 0.54 |
9 | 1.20 | 10.00 | 0.72 |
10 | 1.49 | 10.01 | 0.89 |
11 | 1.79 | 10.02 | 1.07 |
图8 两种气泡发生器观察段对比(水流量为7.5m3/h,气流量为1L/min)
Fig.8 Comparison of observation sections for two types of bubble generators (water flow rate of 7.5m3/h, gas flow rate of 1L/min)
图14 水流量为10m3/h,不同气流量下气泡Sauter平均直径及其标准差分布
Fig.14 Distribution of mean bubble diameter and its standard deviation at different air flow rates for a water flow rate of 10m3/h
1 | Hashim A, Yaakob O B, Koh K K, et al. Review of micro-bubble ship resistance reduction methods and the mechanisms that affect the skin friction on drag reduction from 1999 to 2015[J]. Jurnal Teknologi, 2015, 74(5): 105-114. |
2 | Roovers S, Segers T, Lajoinie G, et al. The role of ultrasound-driven microbubble dynamics in drug delivery: from microbubble fundamentals to clinical translation[J]. Langmuir, 2019, 35(31): 10173-10191. |
3 | Burns S E, Yiacoumi S, Tsouris C. Microbubble generation for environmental and industrial separations[J]. Separation and Purification Technology, 1997, 11(3): 221-232. |
4 | Budhijanto W, Darlianto D, Pradana Y S, et al. Application of micro bubble generator as low cost and high efficient aerator for sustainable fresh water fish farming[C]//AIP Conference Proceedings. East Java, Indonesia, 2017. |
5 | 王佳伟, 苏德皓, 赵爱虎, 等. SP-100空间堆气液分离器前导流区结构设计数值模拟研究[J]. 东北电力大学学报, 2022, 42(3): 30-36. |
Wang J W, Su D H, Zhao A H, et al. Numerical simulation research of diversion zone structure design of SP-100 space reactor gas-liquid separator [J]. Journal of Northeast Electric Power University, 2022, 42(3): 30-36. | |
6 | Fujiwara A, Takagi S, Watanabe K, et al. Experimental study on the new micro-bubble generator and its application to water purification system [C]//ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. Honolulu, Hawaii, USA, 2009: 469-473. |
7 | Zhao L, Mo Z Y, Sun L C, et al. A visualized study of the motion of individual bubbles in a Venturi-type bubble generator[J]. Progress in Nuclear Energy, 2017, 97: 74-89. |
8 | Huang J, Sun L C, Du M, et al. An investigation on the performance of a micro-scale Venturi bubble generator[J]. Chemical Engineering Journal, 2020, 386: 120980. |
9 | Gordiychuk A, Svanera M, Benini S, et al. Size distribution and Sauter mean diameter of micro bubbles for a Venturi type bubble generator[J]. Experimental Thermal and Fluid Science, 2016, 70: 51-60. |
10 | Li J J, Song Y C, Yin J L, et al. Investigation on the effect of geometrical parameters on the performance of a Venturi type bubble generator[J]. Nuclear Engineering and Design, 2017, 325: 90-96. |
11 | Gabbard C H. Development of a Venturi type bubble generator for use in the molten-salt reactor xenon removal system [R]. US: Atomic Energy Commission, 1972. |
12 | Yin J L, Li J J, Li H, et al. Experimental study on the bubble generation characteristics for an Venturi type bubble generator[J]. International Journal of Heat and Mass Transfer, 2015, 91: 218-224. |
13 | 崔怡洲, 李成祥, 翟霖晓, 等. 亚毫米气泡和常规尺寸气泡气液两相流流动与传质特性对比[J]. 化工学报, 2024, 75(1): 197-210, 396. |
Cui Y Z, Li C X, Zhai L X, et al. Comparative study on the flow and mass transfer characteristics of sub-millimeter bubbles and conventional bubbles in gas-liquid two-phase flow[J]. CIESC Journal, 2024, 75(1): 197-210, 396. | |
14 | 颜攀, 黄正梁, 王靖岱, 等. 文丘里气泡发生器的气泡尺寸及分布[J]. 浙江大学学报(工学版), 2017, 51(10): 2070-2076. |
Yan P, Huang Z L, Wang J D, et al. Bubble size and its distribution for Venturi bubble generator[J]. Journal of Zhejiang University (Engineering Science), 2017, 51(10): 2070-2076. | |
15 | Sadatomi M, Kawahara A, Kano k, et al. Performance of a new micro-bubble generator with a spherical body in a flowing water tube[J]. Experimental Thermal and Fluid Science, 2005(29): 615-623. |
16 | de Oro O E, Carmona G M, Durango P N, et al. Design and experimental evaluation of a Venturi and Venturi-vortex microbubble aeration system[J]. Heliyon, 2022, 8(10): e10824. |
17 | Wang X Y, Shuai Y, Zhou X R, et al. Performance comparison of swirl-Venturi bubble generator and conventional Venturi bubble generator[J]. Chemical Engineering and Processing - Process Intensification, 2020, 154: 108022. |
18 | Wang X Y, Shuai Y, Zhang H M, et al. Bubble breakup in a swirl-Venturi microbubble generator[J]. Chemical Engineering Journal, 2021, 403: 126397. |
19 | Ding G D, Li Z L, Chen J Q, et al. An investigation on the bubble transportation of a two-stage series Venturi bubble generator[J]. Chemical Engineering Research and Design, 2021, 174: 345-356. |
20 | 丁国栋, 陈家庆, 李振林, 等. 注气孔位置对文丘里管式微气泡发生器成泡特性的影响分析[J]. 化工学报, 2021, 72(11): 5552-5562. |
Ding G D, Chen J Q, Li Z L, et al. Analysis of the effect of air injection hole position on bubble formation characteristics of Venturi-type microbubble generator[J]. CIESC Journal, 2021, 72(11): 5552-5562. | |
21 | 徐振华, 赵红卫, 方为茂, 等. 金属微孔管制造微气泡的研究[J]. 环境污染治理技术与设备, 2006(9): 78-82. |
Xu Z H, Zhao H W, Fang W M, et al. Research on microbubbles generation by metal microporous tube[J]. Techniques and Equipment for Environmental Pollution Control, 2006(9): 78-82. | |
22 | 吴胜军, 方为茂, 赵红卫, 等. 陶瓷微孔膜管制造微气泡的研究[J]. 膜科学与技术, 2009, 29(6): 61-65. |
Wu S J, Fang W M, Zhao H W, et al. Research on microbubbles generated by ceramic microporous tube [J]. Membrane Science and Technology, 2009, 29(6): 61-65. | |
23 | 吴胜军, 方为茂, 赵红卫, 等. 高速剪切流剪切形成微气泡的研究[J]. 水处理技术, 2009, 35(5): 44-48. |
Wu S J, Fang W M, Zhao H W, et al. Research on microbubbles formation by high-speed cross-flow[J]. Technology of Water Treatment, 2009, 35(5): 44-48. | |
24 | 吴胜军, 方为茂, 赵红卫, 等. PE微孔形成微气泡及其理论研究[J]. 四川化工, 2008, 11(6): 1-4. |
Wu S J, Fang W M, Zhao H W, et al. Studies of microbubble formation by PE microporous and its theoretics [J]. Sichuan Chemical Industry, 2008, 11(6): 1-4. | |
25 | 杨晓明, 孙斌, 翟东旭. 多孔介质通道气液两相流型及压降特性研究[J]. 东北电力大学学报, 2014, 34(4): 1-6. |
Yang X M, Sun B, Zhai D X. Two-phase flow type and pressure drop characteristics research in porous media channel[J]. Journal of Northeast Electric Power University, 2014, 34(4): 1-6. | |
26 | Marshall S H, Chudacek M W, Bagster D F. A model for bubble formation from an orifice with liquid cross-flow[J]. Chemical Engineering Science, 1993, 48(11): 2049-2059. |
27 | Kazakis N A, Mouza A A, Paras S V. Experimental study of bubble formation at metal porous spargers: Effect of liquid properties and sparger characteristics on the initial bubble size distribution[J]. Chemical Engineering Journal, 2008, 137(2): 265-281. |
28 | Bokányi L, Csöke B. Preparation of clean coal by flotation following ultra fine liberation[J]. Applied Energy, 2003, 74(3/4): 349-358. |
29 | 张卫, 李浙昆. 一种新型微泡发生器的理论研究[J]. 新技术新工艺,2017, 2: 37-40. |
Zhang W, Li Z K. Research on theory of a kind of new micro-bubble generator[J]. New Technology & New Process, 2017(2): 37-40. | |
30 | 吴翔. 微气泡发生器在旋流气浮技术中的应用研究[D]. 北京: 中国石油大学(北京), 2016. |
Wu X. Research on the Application of Microbubble Generator in the Cyclone Flotation Technology[D]. Beijing: China University of Petroleum, 2016. | |
31 | Liew K C S, Rasdi A, Budhijanto W, et al. Porous Venturi-orifice microbubble generator for oxygen dissolution in water[J]. Processes, 2020, 8(10): 1266. |
32 | Sadatomi M, Kawahara A, Matsuura H, et al. Micro-bubble generation rate and bubble dissolution rate into water by a simple multi-fluid mixer with orifice and porous tube[J]. Experimental Thermal and Fluid Science, 2012, 41: 23-30. |
33 | 丁国栋. 文丘里管式微气泡发生器的结构优化与关联特性研究[D]. 北京: 中国石油大学(北京), 2022. |
Ding G D. Study on structural optimization and correlation characteristics of a Venturi type microbubble generator[D]. Beijing: China University of Petroleum, 2022. | |
34 | Mirsandi H, Smit W J, Kong G, et al. Bubble formation from an orifice in liquid cross-flow[J]. Chemical Engineering Journal, 2020, 386: 120902. |
35 | Kulkarni A A, Joshi J B. Bubble formation and bubble rise velocity in gas-liquid systems: a review[J]. Industrial & Engineering Chemistry Research, 2005, 44 (16): 5873-5931. |
[1] | 师毓辉, 邢继远, 姜雪晗, 叶爽, 黄伟光. 基于PBM的离心式叶轮内气泡破碎合并数值模拟[J]. 化工学报, 2024, 75(5): 1816-1829. |
[2] | 关朝阳, 黄国庆, 张一喃, 陈宏霞, 杜小泽. 泡沫铜导离气泡强化流动沸腾换热实验研究[J]. 化工学报, 2024, 75(5): 1765-1776. |
[3] | 汪威, 白旭, 赵翔, 马学良, 林纬, 喻九阳. 基于响应面法的气浮旋流分离条件优化[J]. 化工学报, 2024, 75(5): 1929-1938. |
[4] | 王娟, 李秀明, 邵炜涛, 丁续, 霍莹, 付连超, 白云宇, 李迪. 多孔板鼓泡塔流动与传质特性数值模拟[J]. 化工学报, 2024, 75(3): 801-814. |
[5] | 陈思睿, 毕景良, 王雷, 李元媛, 陆规. 气液两相流流型特征无监督提取的卷积自编码器:机理及应用[J]. 化工学报, 2024, 75(3): 847-857. |
[6] | 李乃良, 刘常松, 杜雪平, 张一帆, 韩东太. 基于Hurst指数的严重段塞流多尺度分形特性[J]. 化工学报, 2024, 75(2): 484-492. |
[7] | 刘志鹏, 赵长颖, 吴睿, 张智昊. 基于水电解制氢的梯度多孔传输层中气液流动可视化实验研究[J]. 化工学报, 2024, 75(2): 520-530. |
[8] | 詹小斌, 王会彬, 蒋亚龙, 史铁林. 声共振混合器高黏度流体混合的功耗特性研究[J]. 化工学报, 2024, 75(2): 531-542. |
[9] | 刘起超, 张世博, 周云龙, 李昱庆, 陈聪, 冉议文. 起伏振动水平管气液两相流型及转变机理[J]. 化工学报, 2024, 75(2): 493-504. |
[10] | 韩东, 高宁宁, 唐新德, 龚升高, 夏良树. 适用欧拉-拉格朗日方法模拟气液泡状流的气泡破碎模型[J]. 化工学报, 2024, 75(2): 553-565. |
[11] | 赵碧丹, 代伊杨, 王军武, 张永民. CFD-DEM-IBM方法探究流化床倾斜挡板内构件受力特性[J]. 化工学报, 2024, 75(1): 255-267. |
[12] | 崔怡洲, 李成祥, 翟霖晓, 刘束玉, 石孝刚, 高金森, 蓝兴英. 亚毫米气泡和常规尺寸气泡气液两相流流动与传质特性对比[J]. 化工学报, 2024, 75(1): 197-210. |
[13] | 肖明堃, 杨光, 黄永华, 吴静怡. 浸没孔液氧气泡动力学数值研究[J]. 化工学报, 2023, 74(S1): 87-95. |
[14] | 邵苛苛, 宋孟杰, 江正勇, 张旋, 张龙, 高润淼, 甄泽康. 水平方向上冰中受陷气泡形成和分布实验研究[J]. 化工学报, 2023, 74(S1): 161-164. |
[15] | 江河, 袁俊飞, 王林, 邢谷雨. 均流腔结构对微细通道内相变流动特性影响的实验研究[J]. 化工学报, 2023, 74(S1): 235-244. |
阅读次数 | ||||||
全文 |
|
|||||
摘要 |
|
|||||