家电科技 ›› 2024, Vol. 0 ›› Issue (6): 46-51.doi: 10.19784/j.cnki.issn1672-0172.2024.06.008

• 论文 • 上一篇    下一篇

翅片管换热器内螺纹铝管参数优化

李宁1,2, 孙西辉2, 李丰1,2, 黄汝普1,3, 邹大枢1,3, 黄东1   

  1. 1.西安交通大学制冷与低温工程系 陕西西安 710049;
    2.广东美的暖通设备有限公司 广东佛山 528311;
    3.广东美的制冷设备有限公司 广东佛山 528311
  • 出版日期:2024-12-01 发布日期:2025-03-06
  • 通讯作者: 黄东,E-mail:d_huang@mail.xjtu.edu.cn。
  • 作者简介:李宁,硕士学位。研究方向:换热器技术。地址:广东省佛山市顺德区北滘镇美的全球创新中心。E-mail:ning.li@midea.com。

Parameter optimization of the aluminum inner-grooved tube in fin-tube heat exchangers

LI Ning1,2, SUN Xihui2, LI Feng1,2, HUANG Rupu1,3, ZOU Dashu1,3, HUANG Dong1   

  1. 1. Department of Refrigeration & Cryogenic Engineering, Xi’an Jiaotong University Xi’an 710049;
    2. Midea HVAC Heating & Ventilation Equipment Co.,Ltd. Midea Group Foshan 528311;
    3. Guangdong Midea Refrigeration Equipment Co.,Ltd. Foshan 528311
  • Online:2024-12-01 Published:2025-03-06

摘要: 随着空调系统铝应用的推进,一些企业正在探索铝管换热器和微通道换热器替代传统铜管换热器的方案。针对Φ5内螺纹铝管的齿形参数进行优化,给出管内制冷剂相变换热的计算方法,采用等泵功下与基准管的对比参数(KA/m)e/(KA/m)0衡量单位耗材的换热能力,分析5个齿形参数对换热性能的影响,随后筛选最优参数制作铝管换热器样件,并与铜管样件进行换热器单体实验对比。结果表明,齿数和齿高对换热的影响更明显,铝管优选参数为齿底宽0.156 mm、齿高0.20 mm、齿数45、齿顶角30°、螺旋角20°优化后铝管换热器的制冷量可达铜管样件的102.1%,制热量可达99.7%。

关键词: 翅片管换热器, 内螺纹铝管, 参数优化

Abstract: With the increasing application of aluminum tubes in air conditioning systems, some companies are exploring the scheme that using the aluminum-tube and microchannel heat exchangers as replacements for conventional copper-tube heat exchangers. Aims to optimize the groove parameters of Φ5 aluminum inner-grooved tubes and provides an analytical model for refrigerant phase-change heat transfer inside the tube. The heat transfer capacity per unit material consumption is analyzed by comparing the parameter (KA/m)e/(KA/m)0 at equal pump power. The influence of 5 groove parameters on heat transfer performance is investigated. An aluminum-tube heat exchanger with the optimal parameters is prepared, and the results are compared with a copper-tube sample by conducting heat exchanger performance experiments. The results show that groove number and height significantly impact heat transfer performance. The optimal parameters of an aluminum tube are 0.156 mm groove base width, 0.20 mm groove height, 45 groove number, 30° groove tip angle, and 20° helical angle. After optimization, the cooling and heating capacity of the aluminum-tube heat exchanger can reach 102.1% and 99.7% compared to the copper tube sample, respectively.

Key words: Fin-tube heat exchanger, Aluminum inner-grooved tube, Parameter optimization

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