CFD simulation of power characteristics and flow field distribution of different spiral stirring paddles

被引：0

作者：

Liu, Qingzhao ^{[1
]}

Zhang, Xubin ^{[1
]}

Xiong, Xiaohong ^{[2
]}

Wang, Fumin ^{[1
]}

Li, Guobing ^{[1
]}

Liu, Shuai ^{[1
]}

Shen, Qi ^{[1
]}

Zhang, Zhiwei ^{[1
]}

Qin, Yang ^{[1
]}

Zhu, Bingxin ^{[1
]}

Wang, Zheng ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

[2] Third Qinshan Nucl Power Co Ltd, Zhejiang 100089, Peoples R China

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2024年 / 205卷

基金：

中国国家自然科学基金;

关键词：

CFD; Spiral; Power number; Torque; CONSUMPTION; VESSELS;

D O I：

10.1016/j.cep.2024.110033

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Stirred reactors are widely used in various industries, and the stirring paddle structure has a significant effect on its power consumption. Therefore, in this study, different spiral stirring paddles were investigated. The effects of the ratio of paddle length to leads (Ls/S) design values and number of blades on the power characteristics and internal flow field of the reactor are discussed in detail, and the correlation equation of power number (Np) concerning Re and Ls/S values is fitted. It was found that the Np of stirring paddles increased and then decreased as the Ls/S value increased, and the effect of the number of blades on the Np gradually reduced. When the Ls/S value is equal to 0.6, the high-speed region of the flow field is the largest and the mixing effect is the best. The conclusions obtained can provide a reference for the energy-saving optimal design of spiral stirring paddles.

引用

页数：16

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