Views:56 Author:Site Editor Publish Time: 2021-06-15 Origin:Site
Introduction of heat pipe heat sink
The heat pipe is a heat transfer element with high thermal conductivity. It transfers heat through the evaporation and condensation of the working fluid in the fully enclosed vacuum tube shell. It has extremely high thermal conductivity, good isothermality, and heat and cold transfer. The heating area can be changed arbitrarily, the heat can be transferred over a long distance, and the temperature can be controlled. The disadvantage is poor oxidation resistance and high temperature resistance. This shortcoming can be solved by installing a set of ceramic heat exchangers at the front. The ceramic heat exchangers better solve the problems of high temperature resistance and corrosion resistance.
The heat exchanger with heat pipe as the heat transfer element has the advantages of high heat transfer efficiency, compact structure, low fluid resistance, and beneficial to control dew point corrosion. At present, it has been widely used in metallurgy, chemical industry, oil refining, boilers, ceramics, transportation, textile, machinery and other industries. As energy-saving equipment for waste heat recovery and heat energy utilization in the process, it has achieved significant economic benefits.
The principle of heat pipe heat sink
A layer of porous capillary structure wick is embedded in the inner wall of a closed high-vacuum tube or cylinder, which is filled with liquid phase working fluid. The external heat source inputs heat in the evaporation section to evaporate and vaporize the working fluid. The steam flows to the condensation section for condensation, and the released latent heat of vaporization is sent to the outside. The condensate is retracted into the wick and flows back to the evaporation section by capillary pressure to complete the automatic circulation of the working fluid.
Features of heat pipe heat sink
1. The heat pipe heat sink can completely separate the cold and hot fluids through the middle partition of the heat exchanger. When a single heat pipe is damaged due to wear, corrosion, over-temperature and other reasons during operation, it will basically not affect the operation of the heat exchanger. The heat pipe heat exchanger has high reliability when used in fluid heat exchange occasions that are easy to be flammable, explosive, and corrosive.
2. The cold and hot fluids of the heat pipe heat sink flow completely separately, which can easily realize the countercurrent heat exchange of the cold and hot fluids. Both cold and hot fluids flow outside the tube. Since the heat transfer coefficient flowing outside the tube is much higher than the heat transfer coefficient flowing inside the tube, it is very economical to use in low-grade heat energy recovery occasions.
3. For fluids with high dust content, the heat pipe heat sink can solve the problems of heat exchanger wear and ash blocking by changing the structure and expanding the heating surface.
4. When the heat pipe heat sink is used to recover the waste heat of corrosive flue gas, the temperature of the heat pipe wall can be adjusted by adjusting the heat transfer area of the evaporation section and the condensation section, so that the heat pipe avoids the largest corrosion area as much as possible.
As the leading heat sink manufacturer in China, Kingka introduced to you the working principle of heat pipe heat sink and the characteristics of heat pipe heat sink. Before buying heat pipe heat sink, we must figure out the characteristics of this product. Only for this product If we are familiar enough, we can buy products that are assured, and there will be no problems in the process of using them.