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广东工业大学材料与能源学院 广州 510006
陈健勇,男,副教授,广东工业大学材料与能源学院,020-39322570,E-mail: jianyong@gdut.edu.cn。研究方向:空调热泵系统优化,强化传热技术的研究。Chen Jianyong, male, associate professor, School of Materials and Energy, Guangdong University of Technology, 86-20-39322570, E-mail: jianyong@gdut.edu.cn. Research fields:optimization of air conditioning heat pump system and enhancement of heat transfer technology.
收稿:2025-05-16,
修回:2025-06-17,
录用:2025-07-10,
网络首发:2026-02-09,
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陈广浩,和芸芸,陈健勇等.采用非共沸工质的联箱-小孔型气液分离单元实验研究[J].制冷学报,
Chen Guanghao He Yunyun Chen Jianyong Chen Ying Luo Xianglong,Liang Yingzong He Jiacheng.Experimental Study on Header-Orifice Vapor-Liquid Separation Unit Using Zeotropic Mixture[J].Journal of Refrigeration,
陈广浩,和芸芸,陈健勇等.采用非共沸工质的联箱-小孔型气液分离单元实验研究[J].制冷学报, DOI:10.12465/issn.0253-4339.20250516001. CSTR: XXXXX.XX.XXX.20250516001.
Chen Guanghao He Yunyun Chen Jianyong Chen Ying Luo Xianglong,Liang Yingzong He Jiacheng.Experimental Study on Header-Orifice Vapor-Liquid Separation Unit Using Zeotropic Mixture[J].Journal of Refrigeration, DOI:10.12465/issn.0253-4339.20250516001. CSTR: XXXXX.XX.XXX.20250516001.
气液分离技术能在实现强化传热的同时降低压降,气液分离单元是实现高效气液分离的关键。本文基于联箱-小孔型气液分离单元的可视化实验台,采用非共沸工质R1234ze(E)/R32(质量分数比为80/20),研究了不同条件下的气液分离特性,获得了有效分液范围。结果表明,提高入口干度、降低入口质量流量、增大下出口支管流通截面积或扩大分液孔径,均可提升分液效率,其中入口质量流量对分液效率影响最大。在有效分液区,当流量从18 g/s变成12 g/s时,分液效率提升14.0%。入口质量流量、阀门开度和分液孔径对有效分液干度范围影响较小;但对于有效分液区干度范围偏移、入口质量流量影响最大,分液孔径次之,阀门开度最小。
Vapor-liquid separation technology can enhance heat transfer while reducing pressure drop. The vapor-liquid separation unit is key to achieving efficient vapor-liquid separation. A visualization experiment of the header-orifice separator is conducted in this study using the zeotropic mixture R1234ze(E)/R32 (mass fraction ratio, 80/20) to investigate the vapor-liquid separation characteristics under different conditions and obtain the effective separation range. The results show that increasing the inlet dryness vapor quality, reducing the inlet mass-flow rate, increasing the flow cross-sectional area of the lower outlet branch, and expanding the separation aperture can improve the separation efficiency, among which the inlet mass-flow rate contributes the most significantly to the separation efficiency. In the effective separation area, when the flow rate increases from 18 to 12 g/s, the separation efficiency increases by 14.0%. The inlet mass-flow rate, valve opening, and separation aperture minimally affects the size of the effective separation dryness range; however, for the deviation of the effective separation area dryness range, the inlet mass-flow rate exerts the greatest impact, followed by the separation aperture, whereas the valve opening exerts the least impact.
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