微通道换热器翅片参数仿真设计及融霜实验

doi:10.19784/j.cnki.issn1672-0172.2025.05.016

家电科技 ›› 2026, Vol. 0 ›› Issue (5): 94-99.doi: 10.19784/j.cnki.issn1672-0172.2025.05.016

微通道换热器翅片参数仿真设计及融霜实验

宋分平¹, 王晓宇^1,2, 谢李高^1,2, 董超¹, 赵日晶², 黄东²

1.广东美的制冷设备有限公司广东佛山 528311;
2.西安交通大学制冷与低温工程系陕西西安 710049

出版日期:2025-10-01 发布日期:2026-02-10
通讯作者: 黄东,E-mail：d_huang@mail.xjtu.edu.cn。
作者简介:宋分平,硕士学位。研究方向：制冷空调设计。地址：广东省佛山市顺德区北滘镇林港路22号美的集团家用空调事业部。E-mail：fenping.song@midea.com.cn。

Simulation design of fin parameters and defrosting experiment for microchannel heat exchanger

SONG Fenping¹, WANG Xiaoyu^1,2, XIE Ligao^1,2, DONG Chao¹, ZHAO Rijing², HUANG Dong²

1. Guangdong Midea Refrigeration Equipment Co., Ltd. Foshan 528311;
2. Department of Refrigeration & Cryogenic Engineering, Xi’an Jiaotong University Xi’an 710049

Online:2025-10-01 Published:2026-02-10

摘要/Abstract

摘要： 为研究微通道换热器在热泵空调系统中替代翅片管换热器的可能性,首先对微通道换热器采用的复合翅片进行了仿真分析,研究了开窗角度和波纹高度对流动换热的影响。结果表明,风速在2.3 m·s^-1以下时,开窗角28°更优;各风速下波纹高度1.0 mm优于0.8 mm和0.6 mm。随后测试了室外机分别采用竖插翅片微通道和翅片管换热器的系统除霜性能,将除霜过程划分为启动阶段、融霜阶段、排水阶段,微通道的总除霜时间为276 s,比翅片管长45 s (19.5%),其融霜时间为翅片管的1.58倍,但排水阶段的时长无明显增长。

关键词: 微通道换热器, 复合翅片, 除霜

Abstract: To study the possibility of the microchannel heat exchanger (MHX) replacing the fin-tube heat exchanger (FHX) in heat pump air conditioning systems, a simulation analysis of the composite fins used in the MHX is conducted, and the effects of the louver angle and wave height on the flow and heat transfer was studied. The results show that when the air velocity is below 2.3 m·s^-1, a louver angle of 28° is optimal. A wave height of 1.0 mm is superior to 0.8 mm and 0.6 mm. Subsequently, the system defrosting performance of the outdoor unit using vertical-fined MHX and FHX is tested. The defrosting process is divided into the start-up, melting, and drainage stage. The total defrosting time of the MHX is 276 s, which is 45 s (19.5%) longer than that of the FHX. The duration of melting stage is 1.58 times that of the FHX, but the duration of the drainage stage does not increase significantly.

Key words: Microchannel heat exchanger, Composite fin, Defrosting

中图分类号:

宋分平, 王晓宇, 谢李高, 董超, 赵日晶, 黄东. 微通道换热器翅片参数仿真设计及融霜实验[J]. 家电科技, 2026, 0(5): 94-99.

SONG Fenping, WANG Xiaoyu, XIE Ligao, DONG Chao, ZHAO Rijing, HUANG Dong. Simulation design of fin parameters and defrosting experiment for microchannel heat exchanger[J]. Journal of Appliance Science & Technology, 2026, 0(5): 94-99.

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微通道换热器翅片参数仿真设计及融霜实验

Simulation design of fin parameters and defrosting experiment for microchannel heat exchanger

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