凡采暖系统应该是:运行可靠;调节容易;制作安装简单;可适应各种热源;能够使用各种热媒包括不结冻的液体作热媒;初投资和运转费又不高。创造这种采暖系统的途径之一就是利用所谓热管。热管可分为有衬里又叫液芯的(图1,a)和无衬里的(图1,b)。有衬里的热管是由筒体1和构成液体热媒流动通道的毛细结构衬里2组成。从管子里抽出空气,再充入水、油或其他易蒸发的 Where the heating system should be: reliable operation; easy adjustment; production and installation is simple; can adapt to a variety of heat sources; can use a variety of heat media, including non-frozen liquid as a heat medium; initial investment and operating costs are not high. One of the ways to create this kind of heating system is to use so-called heat pipes. Heat pipes can be divided into linings and liquid cores (Fig. 1, a) and unlined (Fig. 1, b). The lined heat pipe is composed of the cylinder 1 and the capillary structure liner 2 constituting the flow channel of the liquid heat medium. Extract air from the tube and refill it with water, oil or other easily evaporating