针对数据中心与5G基站高热流密度散热需求，本文实验研究了氟泵驱动型分离式热管换热器的传热特性。系统探究了环境温度、热负荷及氟泵频率对当量换热系数、能效比(EER)和启动特性的影响，结合红外热成像分析蒸发器温度场分布。结果表明：环境温度升高削弱冷凝驱动力和循环压差，使当量换热系数下降超10%，EER降低37%；60Hz为氟泵运行频率的最优值，30Hz下的低频运行易致蒸发器干涸，120-150Hz的高频运行则因工质换热不充分而降低传热效率；热负荷增加在中高频率下提升换热能力，低频下反而导致性能恶化。本文提出了60-90Hz变频启动策略，可显著提升系统响应速度与运行稳定性。研究成果为泵驱动分离式热管系统在高热流密度场景的高效节能应用提供了实验依据和控制策略。

To address the high heat flux dissipation requirements of data centers and 5G base stations, this paper experimentally investigated the heat transfer characteristics of a fluorine pump-driven separated heat pipe heat exchanger. The study systematically examined the effects of ambient temperature, heat load, and fluorine pump frequency on the equivalent heat transfer coefficient, energy efficiency ratio (EER), and startup characteristics, combined with infrared thermal imaging analysis of the evaporator temperature field distribution. Results show that increasing ambient temperature weakens condensation driving force and circulation pressure difference, causing the equivalent heat transfer coefficient to decrease by more than 10% and EER to reduce by 37%; the fluorine pump frequency exhibits an optimal value at 60 Hz, while low frequency (30 Hz) leads to evaporator dry-out and high frequency (120-150 Hz) reduces heat transfer efficiency due to insufficient working fluid residence time; increasing heat load enhances heat transfer capacity at medium-high frequencies but deteriorates performance at low frequencies. A 60-90 Hz variable frequency startup strategy is proposed, which significantly improves system response speed and operational stability. The research findings provide experimental basis and control strategies for efficient and energy-saving applications of pump-driven separated heat pipe systems in high heat flux scenarios.