The weeping characteristic of submerged multi-orifice plate

doi:10.1016/j.cjche.2019.12.024

中国化学工程学报 ›› 2020, Vol. 28 ›› Issue (4): 955-968.DOI: 10.1016/j.cjche.2019.12.024

• Fluid Dynamics and Transport Phenomena • 上一篇下一篇

The weeping characteristic of submerged multi-orifice plate

Jiming Wen, Ruifeng Tian, Sichao Tan, Qiunan Sun, Haifeng Gu

Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin 150001, China

收稿日期:2019-05-07 修回日期:2019-08-18 出版日期:2020-04-28 发布日期:2020-07-27
通讯作者: Haifeng Gu
基金资助:
The authors are profoundly grateful to the Fundamental Research Funds for the Central Universities (HEUCFP201855).

The weeping characteristic of submerged multi-orifice plate

Jiming Wen, Ruifeng Tian, Sichao Tan, Qiunan Sun, Haifeng Gu

Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin 150001, China

Received:2019-05-07 Revised:2019-08-18 Online:2020-04-28 Published:2020-07-27
Contact: Haifeng Gu
Supported by:
The authors are profoundly grateful to the Fundamental Research Funds for the Central Universities (HEUCFP201855).

摘要/Abstract

摘要： Weeping is an adverse phenomenon which results in higher pressure drop and poorer aeration performance. Visual experiments have been conducted to study the mechanism by which weeping impairs the work performance of multi-orifice plate. A theoretical model is improved to analyze the weeping phenomenon of multiorifice plate based on potential flow theory. The relations of different bubbling conditions and weeping rate are analyzed. Weeping condition and average weeping rate have relation with the driven pressure differential and dynamic variation of gas chamber pressure. In addition, a set of experiments are designed to study the influence of various factors on weeping rate. The bubble coalescence during bubble formation is a fatal factor determining weeping rate, so the relation between weeping rate and gas flow rate is concerned with the pitch of orifices and orifice diameter. There is a critical plate thickness which is in favor of weeping.

关键词: Weeping, Multi-orifice plate, Wave pressure, Gas chamber pressure

Abstract: Weeping is an adverse phenomenon which results in higher pressure drop and poorer aeration performance. Visual experiments have been conducted to study the mechanism by which weeping impairs the work performance of multi-orifice plate. A theoretical model is improved to analyze the weeping phenomenon of multiorifice plate based on potential flow theory. The relations of different bubbling conditions and weeping rate are analyzed. Weeping condition and average weeping rate have relation with the driven pressure differential and dynamic variation of gas chamber pressure. In addition, a set of experiments are designed to study the influence of various factors on weeping rate. The bubble coalescence during bubble formation is a fatal factor determining weeping rate, so the relation between weeping rate and gas flow rate is concerned with the pitch of orifices and orifice diameter. There is a critical plate thickness which is in favor of weeping.

Key words: Weeping, Multi-orifice plate, Wave pressure, Gas chamber pressure

Jiming Wen, Ruifeng Tian, Sichao Tan, Qiunan Sun, Haifeng Gu. The weeping characteristic of submerged multi-orifice plate[J]. 中国化学工程学报, 2020, 28(4): 955-968.

Jiming Wen, Ruifeng Tian, Sichao Tan, Qiunan Sun, Haifeng Gu. The weeping characteristic of submerged multi-orifice plate[J]. Chinese Journal of Chemical Engineering, 2020, 28(4): 955-968.

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The weeping characteristic of submerged multi-orifice plate

The weeping characteristic of submerged multi-orifice plate

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