针对回路型脉动热管进行了管路结构形式调整,制作了多通道并联回路型脉动热管并建立试验系统,选用丙酮和无水酒精作为工质,在相近热力工况下通过试验考察多通道并联回路型脉动热管和典型回路脉动热管在不同加热工况下的运行情况,并进行比较.结果表明:多通道并联回路型脉动热管与典型回路型脉动热管具有相似的启动特征,但其在运行中具有更好的稳定性,不易出现干烧现象;其传热效果也优于典型回路型脉动热管,具有较低的运行热阻,低充液率(34%)时的传热效果优于高充液率(51%、68%)时,具有较高的传热极限. For the loop-type pulsating heat pipe pipe structure adjustment, produced a multi-channel parallel circuit pulsating heat pipe and the establishment of test system, the choice of acetone and anhydrous alcohol as the working fluid in the similar thermal conditions through the test study of multi-channel parallel circuit Type pulsating heat pipe and the typical loop pulsating heat pipe under different heating conditions are compared and the results show that the multi-channel parallel loop pulsating heat pipe has the similar starting characteristics with the typical loop pulsating heat pipe, Better stability, easy to dry phenomenon; its heat transfer effect is also better than the typical loop-type pulsating heat pipe, with low thermal resistance, low liquid charge rate (34%) when the heat transfer effect is better than high charge Liquid rate (51%, 68%), has a high heat transfer limit.