缠绕管式换热器流体流动换热性能分析

徐启; 刘家森; 李书金; 朱炳衡; 何耀辰

doi:10.16056/j.2096-7705.2022.04.020

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缠绕管式换热器流体流动换热性能分析

研究与探讨 | 更新时间：2026-01-19

- 缠绕管式换热器流体流动换热性能分析
- Analysis of Fluid Flow Heat Transfer Performance of Wound Tube Heat Exchangers
- 能源研究与管理 2022年第4期页码：122-128
- 作者机构：
  
  华北水利水电大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：10.16056/j.2096-7705.2022.04.020
  中图分类号： TK172
- 纸质出版：2022
- 稿件说明：
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徐启, 刘家森, 李书金, 等. 缠绕管式换热器流体流动换热性能分析[J]. 能源研究与管理, 2022,(4):122-128.

徐启, 刘家森, 李书金, et al. Analysis of Fluid Flow Heat Transfer Performance of Wound Tube Heat Exchangers[J]. 2022, (4): 122-128.
徐启, 刘家森, 李书金, 等. 缠绕管式换热器流体流动换热性能分析[J]. 能源研究与管理, 2022,(4):122-128. DOI： 10.16056/j.2096-7705.2022.04.020.

徐启, 刘家森, 李书金, et al. Analysis of Fluid Flow Heat Transfer Performance of Wound Tube Heat Exchangers[J]. 2022, (4): 122-128. DOI： 10.16056/j.2096-7705.2022.04.020.

摘要

为了深入了解缠绕管式换热器的特性，通过建立圆管缠绕管换热器的几何模型，采用Fluent仿真数值模拟软件对其管内流动进行模拟，并利用origin软件对各个工况下的管内模拟结果数据进行处理，分析了不同工况下圆管缠绕管对缠绕管换热器内流体流动的影响。结果表明：RNG k-ε湍流模型计算结果的平均误差为5.8%，与实验值的变化趋势基本一致；管程入口流量对壳程出口温度的影响小于管程出口流量对壳程出口温度的影响，壳程温度的分布情况随着管程流量的增大而变得更加均匀；对管程综合评价指标PEC指数分析表明，管程流量的增大会造成相对应的管程压降的增大，摩擦系数的变化则相反，两者的变化幅度均随着管程流量的增大而趋于平缓，换热效果强化显著。

Abstract

In order to understand the characteristics of the winding heat exchanger

the influence of the winding tube on the fluid flow in the winding tube heat exchanger under different operating conditions was studied by establishing the geometric model of the round tube winding tube heat exchanger

using Fluent simulation numerical simulation software to simulate its in-tube flow

and using origin software to process the data of the in-tube simulation results under each operating condition.The results show that: the average error of the calculated results of the RNG k-ε turbulence model is 5.8%

which is basically consistent with the trend of the experimental value; the influence of the tube inlet flow rate on the shell outlet temperature is smaller than the influence of the tube outlet flow rate on the shell outlet temperature

and the distribution of the shell temperature becomes more uniform with the increase of the tube flow rate. The analysis of the PEC index

a comprehensive evaluation index of the tube process

shows that the analysis of the PEC index shows that the increase of the tube flow rate will cause the corresponding increase of the pressure drop in the tube process

while the change of the friction coefficient is the opposite

and the change amplitude of both tends to level off with the increase of the tube process flow rate

and the heat exchange effect is strengthened significantly.

关键词

Keywords

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