有芯和无芯高温重力钾热管启动性能试验研究  

Test Study for Starting Performance of High-temperature Gravity Potassium Heat Pipes with and without Wick

作　　者：韩冶[1] 柴宝华[1] 卫光仁[1] 毕可明[1] 冯波[1] 龙俞伊 HAN Ye;CHAI Baohua;WEI Guangren;BI Keming;FENG Bo;LONG Yuyi(China Institute of Atomic Energy, P. O. Box 275-59, Beijing 102413, China)

机构地区：[1]中国原子能科学研究院反应堆工程技术研究部,北京102413

出　　处：《原子能科学技术》2019年第1期38-44,共7页Atomic Energy Science and Technology

摘　　要：为研究有芯和无芯高温钾热管在重力状态下的启动性能,开展了相关对比与敏感性试验研究。得到有芯热管试验中的最优充液量为17.5 g,此充液量能避免充液量不足导致的启动升温较慢、末端温度低,也可避免充液量过大时间歇沸腾和过渡沸腾;无芯热管在启动和升温过程处于间歇沸腾工况,剧烈程度随充液量减少而降低,试验中最优充液量为9 g。在工程范围内,倾角对热管传热性能的影响可忽略。在试验状态下有芯钾热管启动性能优于无芯钾热管。To investigate the starting performance of high-temperature potassium heat pipes with and without wick under gravity conditions, relevant correlations and susceptibility tests were conducted. The optimal filling volume of the heat pipe with wick is 17.5 g in the test. This filling volume can avoid the slow start-up temperature and the low end temperature caused by insufficient filling, and can also avoid intermittent boiling and transition boiling caused by excessive filling. Heat pipes without wick would be in intermittent boiling condition during starting and heating processes. The severity decreases with the filling volume. Its optimal filling volume is 9 g in the test. In the project scale, the influence of inclination on heat transfer performance of heat pipe can be ignored. In the test state, the starting performance of the potassium heat pipe with wick is better than that without wick.

关 键 词：钾热管 重力热管 热管启动 充液量 间歇沸腾 吸液芯 

分 类 号：TL339[核科学技术—核技术及应用]