海水源热泵毛细管网换热器传热与流动性能研究

郑进福; 窦梦莹; 陈嘉乐; 胡松涛; 季永明; 朱辉; 梁士民

doi:10.12465/issn.0253-4339.20250808001

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海水源热泵毛细管网换热器传热与流动性能研究

更新时间：2026-10-13

- 海水源热泵毛细管网换热器传热与流动性能研究
- Experimental Study on Thermal and Flow Performances of Capillary Heat Exchanger for Seawater-Source Heat Pump
- 制冷学报 2026年47卷第5期页码：92-102
- 作者机构：
  
  1.青岛理工大学环境与市政工程学院青岛 266520
  2. 山东省健康环境与低碳能源工程研究中心青岛 266520
- 作者简介：
  
  郑进福，男，副教授，青岛理工大学环境与市政工程学院，15689951015，E-mail：zjf1102610317@163.com。研究方向：综合能源系统优化，可再生能源消纳，供热系统动态热力分析与储能。
- 基金信息：
- DOI：10.12465/issn.0253-4339.20250808001
  中图分类号： TB61⁺1;TK172;TU831
- 收稿：2025-08-08，
  
  修回：2025-09-15，
  
  录用：2025-10-13，
  
  纸质出版：2026-10-16
- 稿件说明：
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郑进福,窦梦莹,陈嘉乐等.海水源热泵毛细管网换热器传热与流动性能研究[J].制冷学报,2026,47(05):92-102.

Zheng Jinfu,Dou Mengying,Chen Jiale,et al.Experimental Study on Thermal and Flow Performances of Capillary Heat Exchanger for Seawater-Source Heat Pump[J].Journal of Refrigeration,2026,47(05):92-102.
郑进福,窦梦莹,陈嘉乐等.海水源热泵毛细管网换热器传热与流动性能研究[J].制冷学报,2026,47(05):92-102. DOI： 10.12465/issn.0253-4339.20250808001.

Zheng Jinfu,Dou Mengying,Chen Jiale,et al.Experimental Study on Thermal and Flow Performances of Capillary Heat Exchanger for Seawater-Source Heat Pump[J].Journal of Refrigeration,2026,47(05):92-102. DOI： 10.12465/issn.0253-4339.20250808001.

摘要

为定量研究海水源热泵用毛细管网换热器的传热和流动性能，本文搭建了换热器的传热和流动性能实验系统，对各种实验工况进行测试，定量分析了毛细管管内流速、管内介质、管材以及管内外温度、季节变化等因素对毛细管网换热器性能的影响；分析了传统经验准则关系式对毛细管网换热器传热性能量化评估的准确性，对管内经验准则关系式进行修正。研究结果表明：毛细管网换热器的平均传热系数和效率分别约为91.3 W/（m

·℃）和87%；当毛细管管内流速为0.11 m/s时，最大压降仅为8.2 kPa。传统经验准则关系式计算得出的传热系数高于实验测试值，而在高流速下更明显；修正后的传热经验准则关联式可将模拟最大误差从17.5%降至3%。基于实验数据进行毛细管网换热器运行参数与性能指标的相关性分析，结合季节运行需求确定冬夏季节最优运行工况。本研究可为海水源热泵系统中毛细管网换热器的设计和运行提供指导。

Abstract

To quantitatively investigate the heat transfer and flow performances of capillary heat exchanger for the seawater-source heat pump， an experimental system was constructed in this study. Various experimental conditions were tested to quantitatively analyze the effects of different factors such as the in-tube flow velocity of the capillary， in-tube medium， tube material， temperatures inside and outside the tube， and seasonal changes in the performances of the capillary heat exchanger. The accuracies of the traditional empirical correlation equations for quantifying and evaluating the heat-transfer performance of capillary heat exchanger were analyzed， and the in-tube empirical correlation equations were modified. The research results showed that the average heat-transfer coefficient and efficiency of the capillary heat exchanger were approximately 91.3 W/（m

·℃） and 87%， respectively. When the in-tube flow velocity of the capillary was 0.11 m/s， the maximum press

ure drop was only 8.2 kPa. In addition， the heat transfer coefficient calculated by the traditional empirical correlation equations was higher than the experimental value， where the discrepancy was more obvious at high flow velocities. The modified empirical correlation equation for heat transfer could reduce the maximum simulation error from 17.5% to 3%. This study also conducted a correlation analysis between the operational parameters and performance indices of a capillary tube heat exchanger based on the experimental data， and then determined the optimal operational conditions for winter and summer by combining the research results and seasonal requirements. This research provides guidance for the design and operation of capillary heat exchanger in seawater-source heat pump system.

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