The weeping characteristic of submerged multi-orifice plate

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

doi:10.1016/j.cjche.2019.12.024

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The weeping characteristic of submerged multi-orifice plate

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- The weeping characteristic of submerged multi-orifice plate
- The weeping characteristic of submerged multi-orifice plate
- 中国化学工程学报（英文版） 2020年28卷第4期页码：955-968
- Affiliations：
  
  Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University,Harbin,China,150001
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.12.024
  中图分类号：
- 纸质出版：2020
- Accepted：
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Jiming Wen, Ruifeng Tian, Sichao Tan, 等. The weeping characteristic of submerged multi-orifice plate[J]. 中国化学工程学报（英文版）, 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.
Jiming Wen, Ruifeng Tian, Sichao Tan, 等. The weeping characteristic of submerged multi-orifice plate[J]. 中国化学工程学报（英文版）, 2020,28(4):955-968. DOI： 10.1016/j.cjche.2019.12.024.

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. DOI： 10.1016/j.cjche.2019.12.024.

摘要

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.

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