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热管是新近出现的高效传热件,它具有极高的热传导能力,比之于良金属导体其导热能力要高许多倍,能在温差甚小的情况下传递颇大的热负荷,因此,热管有近超导热体之称。可以说热管的出现是传热技术中的一个突破性进展,它的特点是热传递能力大、部件轻小,简单可靠,成本低廉。因此,自热管问世以来,很快受到传热界的重视。首先用于宇航中的热控制、空间能源的传热及电子设备冷却。近年来,已广泛用于国防和民用工业各部门。 众所周知,热传递不外三种方式进行:对流、辐射和传导。其中传导导热对于许多生产应用过程,特别是宇航技术中,是热传递中的主要障碍,即使使用了良导体导热的银、铜作为导热体,仍然满足不了要求。这就引起了人们从事于强化导热过程的革新研究工作。从而人们研究出了具有高效传热性能的部件——热管。
Heat pipe is a newly emerged efficient heat transfer member, it has a very high thermal conductivity, compared with the heat conductivity of the metal conductor many times higher, in the case of very small temperature difference transfer a considerable heat load, therefore, the heat pipe Near superconducting heat known. Can be said that the emergence of heat pipe is a breakthrough in heat transfer technology, which is characterized by heat transfer capacity, small parts, simple and reliable, low cost. Therefore, since the advent of heat pipe, heat transfer sector soon paid attention. First used in aerospace thermal control, space energy heat transfer and electronic equipment cooling. In recent years, it has been widely used in various departments of national defense and civil industry. It is well known that heat transfer can be done in any of three ways: convection, radiation and conduction. Among them, conduction heat conduction is the main obstacle in heat transfer for many production and application processes, especially in aerospace technology. Even if a good conductor of heat-conductive silver or copper is used as a heat conductor, the requirements can not be satisfied. This has led to people doing innovative research to strengthen the heat transfer process. So people have developed a component with high heat transfer performance - heat pipe.