选用外径为12、15、22mm,工作液体为丙酮、水和F12的重力热管,进行换热试验研究。本文介绍了试验概况、试验结果及其分析;讨论了热流、压力、工作液体量和倾斜角对热管内换热的影响。文中指出当热管处于正常工作状态时,加热段换热系数与Кружилин大空间沸腾换热公式值比较接近;冷凝段内的换热可用Nusselt层流膜状凝结理论修正后计算;给出了由试验数据整理的经验公式。 Select the outer diameter of 12,15,22 mm, the working fluid is acetone, water and F12 gravity heat pipe, heat transfer test. This paper introduces the test overview, test results and analysis; discusses the heat flow, pressure, the amount of liquid and tilt angle on heat transfer heat pipe. It is pointed out that when the heat pipe is in normal working condition, the heat transfer coefficient of the heating section is close to that of Кружилин large space boiling heat transfer equation. The heat transfer in the condensing section can be corrected by the Nusselt laminar film-like condensation theory. The empirical formula of data processing.