I. working principle
Radiator has a lot of classification for example IGBT radiator, superconducting heat pipe their working medium is mixed by a variety of inorganic active metal and its compound and become, have exceed constant thermal activity and thermal sensitivity, meet heat and absorb, meet cold and put. This kind of thermal superconducting working medium is activated under certain temperature, and will transfer heat in the form of molecular vibration, its super thermal conductivity makes its thermal conductivity is about 10,000 times of general metal, is about 10 times of water heat pipe, there is almost no temperature attenuation in the conduction direction and can be transferred at a very fast speed (supersonic transfer).
Second, the characteristics:
Compared with ordinary heat pipes, superconducting heat pipes have the following characteristics:
(l) wide application. Suitable temperature to 60, 1000 ℃, and general liquid working medium such as water, can only be used for 100 - a - 350 ℃. The temperature and pressure curve is shown in figure 1.
(2) safe and reliable. There is no overpressure problem in the tube, not afraid of dry burning. After vaporization of liquid working medium, the saturated vapor pressure also increases with the increase of temperature, and the internal pressure of the superconducting medium heat pipe does not change with the change of temperature degree.
(3) save steel and optimize heat transfer. The design does not consider compressive strength, only heat transfer performance, corrosion resistance and stability.
(4) thermal dead zone can be eliminated. Water and other liquid working substances have different forms of chemical reactions with the parent metal in the process of high temperature phase change. For example, hydrogen and other non-condensable gases are easily generated in the water heat pipe, thus forming a thermal dead zone on the upper part of the heat pipe and affecting the heat transfer effect.
(5) easy installation without limitation of installation location. General heat pipe must rely on gravity to achieve the circulation of liquid (called gravity heat pipe). Superconducting heat pipe can be arbitrarily installed, as long as there is a temperature difference on the heat transfer.