热管是利用封闭回路中的传热工质—液体蒸发·凝结的潜热,在小温差下可输送大量的热量。在电子仪器冷却和热交换器元件方面使用的热管大多为几厘米,最长也不过为数米,故不能说这是远距离输送热能。从能量输送观点来看长尺寸热管的开发是有必要的。 Heat pipe is the use of closed loop heat transfer fluid - liquid evaporation condensation latent heat, small temperature difference in the transport of large amounts of heat. The heat pipes used in the cooling and heat exchanger components of electronic equipment are mostly a few centimeters long and a few meters in length at most. Therefore, it can not be said that this is the long-distance transportation of heat energy. The development of long-sized heat pipes is necessary from the energy delivery point of view.