工质充注量对热管散热器影响的实验研究  

Experimental Study on the Effect of Working Fluid Charge on Heat Pipe Radiator

作　　者：赵谱 许树学[1] 孙尚瑜 勾倩倩 王月月 李思凡 Zhao Pu;Xu Shuxue;Sun Shangyu;Gou Qianqian;Wang Yueyue;Li Sifan(Beijing University of Technology,Beijing,100124;Beijing Guomao Dongfu Engineering Technology Co.,Ltd,Beijing,100037)

机构地区：[1]北京工业大学,北京100124 [2]北京国贸东孚工程科技有限公司,北京100037

出　　处：《制冷与空调(四川)》2025年第2期157-161,178,共6页Refrigeration and Air Conditioning

基　　金：国家重点研发计划(2022YFC3802500)资助项目。

摘　　要：在国家清洁采暖的大背景下,以热管散热器为末端的家用空气源热泵系统集高效、便利、零排放于一体。在环境控制室内对其进行测试,在启动、稳定运行及除霜过程,研究热管散热器的工质充注量对其表面温度均匀性的影响。结果表明,随着工质充注量的增加启动时间变长,但散热器表面均温性更小,1.0kg充注量散热器表面温度最大差值为2.01℃,而3.5kg充注量下仅1.49℃;稳定运行时散热器表面温度从上到下逐渐降低,但底端温度有所上升;除霜时散热器表面温降主要集中在下集管,充注量越大温降越小,除霜完成时间越短,且未造成室内温度大幅度波动。A household air source heat pump system with a heat pipe radiator as its terminal was built and tested in the environmental control room.In the process of start-up,stable operation and defrosting,the effect of the amount of working fluid charged on the surface temperature uniformity of the heat pipe radiator was studied.The results show that the starting time becomes longer with the increase of the charge of working fluid,but the average temperature of radiator surface becomes smaller.The maximum difference of radiator surface temperature is 2.01℃ with 1.0kg charge,while it is only 1.49℃ with 3.5kg charge.In stable operation,the surface temperature of the radiator gradually decreases from top to bottom,but the bottom temperature increases.During defrosting,the surface temperature drop of the radiator is mainly concentrated in the lower header.The higher the charge amount,the smaller the temperature drop,the shorter the defrosting completion time,and the indoor temperature did not fluctuate greatly.

关 键 词：空气源热泵 热管 除霜 工质充注量 

分 类 号：TU832[建筑科学—供热、供燃气、通风及空调工程]