Study on wave-plate demister with internal transport wall

被引：0

作者：

Peng Y.-F. ^{[1
]}

Chen Z. ^{[1
]}

Zhu J.-H. ^{[1
]}

机构：

[1] School of Chemical Engineering, Sichuan University, Chengdu

来源：

Zhu, Jia-Hua (jhzhu@scu.edu.cn) | 1600年 / Zhejiang University卷 / 35期

关键词：

Demister; Liquid film; Liquid transport; Mist;

D O I：

10.3969/j.issn.1003-9015.2021.06.004

中图分类号：

学科分类号：

摘要：

Wave-plate demisters made of internal transport materials can facilitate demist performance by water transportation. Droplet separation, water transportation and re-entrainment prevention mechanism were investigated by establishing corresponding models. A semi-empirical droplet separation efficiency prediction model was established and validated by experiment data, and the relationship between falling-film thickness and material properties was obtained. The re-entrainment prevention mechanism of the internal transport wall was analyzed. The results show that traditional demisters may form re-entrainment when gas velocity exceeds critical value of 4.82 m∙s-1. However, the wave-plate demisters with internal transport wall have no liquid film under such conditions. Re-entrainment happened at gas velocity over 19.52 m∙s-1. Droplets can be completely spread on internal transport wall, and the thickness of the liquid film can be effectively reduced to prevent re-entrainment. Therefore, demister performance can be improved. © 2021, Editorial Board of Journal of Chemical Engineering of Chinese Universities". All right reserved."

引用

页码：979 / 985

页数：6

共 21 条

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