家用落地式空调L型换热器设计  

L-type heat exchanger design for domestic floor standing air conditioner

作　　者：黄汝普 肖久旻 邵艳坡 邹大枢 黄东[1] HUANG Rupu;XIAO Jiumin;SHAO Yanpo;ZOU Dashu;HUANG Dong(Department of Refrigeration&Cryogenic Engineering,Xi’an Jiaotong University Xi’an 710049;Guangdong Midea Refrigeration Equipment Co.,Ltd.Foshan 528311)

机构地区：[1]西安交通大学制冷与低温工程系,陕西西安710049 [2]广东美的制冷设备有限公司,广东佛山528311

出　　处：《家电科技》2024年第5期74-78,共5页Journal of Appliance Science & Technology

摘　　要：目前家用落地式空调内机主要采用圆柱形外观,产品不断向小型化、高能效发展。针对圆柱形柜机的内机换热器进行设计,采用L型结构,借助CFD仿真确定换热器夹角,采用Midea Heat Exchanger仿真软件选择合适的制冷剂流路,最终制作换热器样件与原型机进行整机性能对比。结果表明,L型换热器夹角为80°时既有较高风量,又有足够的换热面积确保较高的换热量;在不同的制冷剂流路布置中,6支路对应的换热量最大,制冷剂分布均匀性和空气侧温度均匀性最佳;相比原型机,L型换热器额定制冷工况下的风量提升13.4%,额定制热工况下的风量提升10.8%,整机APF提升0.146。Currently,the indoor unit of the domestic floor standing air conditioner commonly adopts the cylindrical appearance,and the products are constantly developing to miniaturization and high energy efficiency.Focuse on the indoor heat exchanger design of the cylindrical floor standing air conditioner,the L-type structure is used for the heat exchanger,the angle of the heat exchanger is determined by CFD simulation,the Midea Heat Exchanger simulation software is used to select a suitable refrigerant circuitry and finally a heat exchanger sample for overall performance comparison with the prototype machine is produced.Results show that when the angle of L-type heat exchanger is 80°,there is both higher air volume and sufficient heat exchange area to ensure higher heat transfer capacity.Among the different refrigerant circuitry,the circuitry with 6 branches has the highest capacity,and the uniformity of refrigerant distribution and airside temperature distribution are the best.Compared with the prototype,the air volume flow rate of L-type heat exchanger under rated cooling condition increases by 13.4%,and that under rated heating condition increases by 10.8%.The APF of the overall system increases by 0.146.

关 键 词：落地式空调 翅片管换热器 换热器夹角 流路布置 

分 类 号：TM925.12[电气工程—电力电子与电力传动] TU831[建筑科学—供热、供燃气、通风及空调工程]