[1]吴艳,董贺.带防冲挡板再沸器入口流场特性研究[J].石油化工设备,2025,54(02):32-37.[doi:10.3969/j.issn.1000-7466.2025.02.006]
　WU Yan,DONG He.Research on Inlet Flow Characteristics of Reboiler with Impingement Plates[J].Petro-Chemical Equipment,2025,54(02):32-37.[doi:10.3969/j.issn.1000-7466.2025.02.006]
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带防冲挡板再沸器入口流场特性研究()
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石油化工设备[ISSN:1000-7466/CN:62-1078/TQ]

卷:
54
期数:
2025年02期
页码:
32-37
栏目:
试验研究
出版日期:
2025-03-25

文章信息/Info

Title:
Research on Inlet Flow Characteristics of Reboiler with Impingement Plates
文章编号:
1000-7466(2025)02-0032-06
作者:
吴艳1; 董贺2
1.中国天辰工程有限公司,天津 300400；2.天津大学,天津 300072
Author(s):
WU Yan1;  DONG He2
1.China Tianchen Engineering Corporation, Tianjin 300400,China; 2.Tianjin University,Tianjin 300072,China
关键词:
再沸器; 防冲挡板; 计算流体力学; 开孔率
Keywords:
reboiler;  impingement plate;  computational fluid dynamics;  opening rate
分类号:
TQ051.5
DOI:
10.3969/j.issn.1000-7466.2025.02.006
文献标志码:
A
摘要:
再沸器管板腐蚀是醋酸精馏分离过程常见问题之一，再沸器入口流场分布不均匀，局部流速过高形成冲刷腐蚀是其主要原因。防冲挡板的使用可以降低腐蚀风险，但其作用机制不明确。采用计算流体力学方法对再沸器入口流动过程进行了模拟研究，探究了防冲挡板开孔率、孔径和挡板位置对流场特性的影响。计算结果表明，防冲挡板开孔率对再沸器封头内流体流动的影响最为明显，合适的开孔率在15.0%~25.0%。在相同开孔率下，孔径大小对流场分布影响不明显；在合适的开孔率条件下，可通过调整挡板相对位置，进一步实现再沸器内的流场均匀分布。研究结果可为再沸器入口防冲挡板的合理设计提供指导依据。
Abstract:
One of the most significant challenges encountered during the separation process of acetic acid is the corrosion of the reboiler tube sheet. This phenomenon can be attributed to an uneven distribution of the flow field at the inlet of the reboiler, which results in a high local flow velocity, thereby causing erosion and corrosion. It has been documented that the implementation of an impingement plate can serve to mitigate the potential for corrosion. However, the precise mechanism of action of the impingement plate remains uncertain. In this study, Computational Fluid Dynamics was employed to simulate the flow process at the inlet of the reboiler. This study examines the impact of varying the opening rate, aperture, and position of the baffle on the flow field characteristics. The results of the calculations demonstrated that the opening rate of the impingement plate exerts the most pronounced influence on the fluid flow within the head. The optimal opening rate falls within the range of 15.0% to 25.0%. The aperture has no significant impact on the flow field distribution when the opening rate is maintained at a consistent level. However, when the opening rate is appropriate, the relative position of the baffle can be adjusted to enhance the uniformity of the flow field distribution within the reboiler. The findings of this study offer a valuable reference for the rational design of the anti-scouring baffle at the inlet of the reboiler.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2024-11-20
作者简介：吴 艳（1992-），女，天津人，工程师，硕士，主要从事石油化工工程设计工作。
更新日期/Last Update: 2025-03-25