Page 23 - 《真空与低温》2025年第5期

真空与低温 第 31 卷 第 5 期
562 Vacuum and Cryogenics 2025 年 9 月

热 真 空 环 模 设 备 温 控 底 板 温 度 均 匀 性 与 换 热 特 性 分 析

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王蕊霞 ，冯大伟 ，范志剑 ，闫 格 1,2 ，颜昌林 1,2 ，刘伟成 1,2 ，曹 斌 ，王天福 ，李向阳 1
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（1. 兰州真空设备有限责任公司华宇分公司，兰州 730050；
2. 兰州空间技术物理研究所，兰州 730000）
摘要：温控底板作为热真空环境模拟设备关键部件之一，其控温性能优劣直接影响环境模拟器的工作性能。
为探究温控底板温度均匀性的影响因素同时提升其换热特性，采用计算流体力学（−0.4 pt CFD）数值计算方法进行
流固耦合传热仿真，基于试验件内热源的散热要求，针对两种不同流道及不同厚度的温控底板进行了仿真分析，
研究了温控底板的几何参数和导热液流速对温控底板传热性能及流体压降的影响。在此基础上，分别在−70 ℃
和 120 ℃ 两种工况开展稳态实验。结果表明：较多的流道匝数会导致导热液的流阻增大，进而影响出入口压差增
大。随着入口流速的增加，温度均匀性逐渐改善，入口流速大于 2.5 m/s 后，出入口温差及温度均匀性的变化逐渐
趋于平稳，出入口压差的增加趋势变陡；较多的流道匝数以及流速增加可以增强导热液与管内壁的换热效果。
关键词：温控底板；流固耦合；温度均匀性；换热特性
中图分类号：TB71 文献标志码：A 文章编号：1006−7086（2025）05−0562−07
DOI：10.12446/j.issn.1006-7086.2025.05.003

Analysis of Temperature Uniformity and Heat Transfer Characteristics of Temperature Control
Base Plate in Thermal Vacuum Environment Simulator

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WANG Ruixia ，FENG Dawei ，FAN Zhijian ，YAN Ge ，YAN Changlin ，LIU Weicheng ，
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CAO Bin ，WANG Tianfu ，LI Xiangyang 1
（1. Huayu Branch，Lanzhou Vacuum Equipment Co.，Ltd.，Lanzhou 730050，China；
2. Lanzhou Institute of Physics，Lanzhou 730000，China）
Abstract：As one of the key components of thermal vacuum environment simulation equipment，the temperature control
performance directly affects the working performance of the environment simulator. In order to investigate the influence fac-
tors of temperature uniformity of the temperature control base plate and to improve its heat transfer characteristics，the nu-
merical calculation method of Computational Fluid Dynamics （CFD） is used to carry out the fluid-solid coupling heat trans-
fer simulation，based on the heat dissipation requirements of the heat source in the test piece，the simulation analysis is car-
ried out for the two kinds of different flow paths and different thicknesses of the temperature control base plate to study the
effect of the geometrical parameter of the temperature control base plate and the fluid flow rate on the temperature control
base plate's heat transfer performance and the pressure drop of the fluid. The effect of the geometric parameters of the temper-
ature control base plate and the fluid flow rate on the heat transfer performance and pressure drop of the fluid is investigated.
On this basis，steady state experiments were carried out at −70 ℃ and 120 ℃ respectively，and the results show that a larger
number of flow paths will lead to an increase in the flow resistance of the heat transfer fluid，which in turn affects the in-
crease in the pressure difference between the inlet and outlet. With the increase of inlet flow rate，the temperature uniformity
gradually decreases. After the inlet flow rate is greater than 2.5 m/s，the temperature difference between the inlet and outlet
and the temperature uniformity gradually tends to stabilize，and the increase in the inlet and outlet differential pressure tends
to become steeper，a larger number of flow paths and an increase in the flow rate can enhance the heat transfer effect of the

收稿日期：2024−11−14
基金项目：2021 年甘肃省科技计划项目重点研发计划-工业类（21YF5GA155）；2023 年兰州市科技计划项目（2023-1-1）
作者简介：王蕊霞，硕士。E-mail：wangruixiaya@163.com
通信作者：范志剑，高级工程师。E-mail：309359729@qq.com