真空设备风冷换热系统结构的仿真优化

doi:10.13385/j.cnki.vacuum.2025.04.16

摘要/Abstract

摘要： 结合真空设备的发展趋势明确了设备风冷换热系统的发展方向为提高换热效率以及增加排污功能等。基于此,本文通过仿真计算对风冷换热系统的进风管道和换热器风机连接管道进行结构优化,通过控制流量计算不同管道结构对风冷换热系统出风的影响,并对比分析了管道外壁面温度及出口风速等参数。结果表明：与传统直角弯管相比,采用焊接弯头与分体式水冷夹套设计的进风管道时,出口气体流速得到提升,壁面温度分布均匀性改善;在连接管道中引入缩径（DN100）排污口与引流结构有利于污染物沉积,气体流速较等径开口结构更为稳定;验证结果表明该新型管道设计能够减小压降,降低流动阻力,显著提升换热效率。

关键词: 风冷换热, 管道, 仿真优化

Abstract: Aligning with the development trends of vacuum equipment, the advancement direction for air-cooled heat exchange systems is identified as enhancing heat transfer efficiency and incorporating sediment discharge functionality. This study optimizes the structure of the inlet air duct and the connecting duct between the heat exchanger and the fan through simulation calculations. Flow control calculations were performed to assess the impact of different duct structures on the outlet airflow of the air-cooled heat exchange system, with comparative analyses conducted on parameters such as duct outer wall temperature and outlet air velocity. The results indicate that compared to the traditional right-angle bend, the inlet duct employing a welded elbow and a split-type water-cooled jacket design exhibits increased outlet gas velocity and improved uniformity in wall temperature distribution. Introducing a reduced-diameter (DN100) sediment discharge port with a diversion structure into the connecting duct facilitates pollutant deposition, resulting in more stable gas velocity compared to the structure with an equal-diameter opening. Validation results demonstrate that this novel duct design can reduce pressure drop, decrease flow resistance, and significantly improve heat exchange efficiency.

Key words: air-cooled heat exchange, duct, simulation optimization

中图分类号: TG232.6;U262.23+2

刘昱辰, 贾守亚, 张鹏泽. 真空设备风冷换热系统结构的仿真优化[J]. 真空, 2025, 62(4): 89-96.

LIU Yuchen, JIA Shouya, ZHANG Pengze. Simulation and Optimization of Structure of Air-Cooled Heat Exchange System for Vacuum Equipment[J]. VACUUM, 2025, 62(4): 89-96.

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