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为了研究毛细抽吸两相环回路（ＣＰＬ）运行的稳定性特性，对ＣＰＬ－Ⅲ工程模型系统进行了实验研究。总结了ＣＰＬ系统运行稳定性的各种影响因素，包括蒸发器功率、储液器温度、冷却液温度及蒸发器之间的相互影响等，并且对以上因素进行了理论上定性的解释。增大毛细抽吸力，提高储液器温度、保持储液器温度恒定，降低蒸发器功率、减小蒸发器功率的扰动，降低冷却液温度，使储液器的注入点远离蒸发器等可以提高系统稳定性，两个蒸发器之间的相互作用也对ＣＰＬ系统稳定性有影响。在已有实验数据的基础上，给出了系统运行的稳定区域图，并拟合出了不稳定区域的边界线方程。
In order to study the stability characteristics of the capillary suction two-phase loop (CPL) operation, the CPL-Ⅲ engineering model system was experimentally studied. Summarizes the various factors that affect the operation stability of CPL system, including evaporator power, reservoir temperature, coolant temperature and the interaction between evaporators, and the above factors are theoretically and qualitatively explained. Increase capillary suction, increase reservoir temperature, keep reservoir temperature constant, reduce evaporator power, reduce disturbance of evaporator power, lower coolant temperature, keep reservoir injection point away from evaporator, etc. Improve the system stability, the interaction between the two evaporators also have an impact on the stability of the CPL system. Based on the existing experimental data, a stable area map of the system is given and the boundary line equation of the unstable area is fitted.