Yancheng Jinfeng Energy Conservation and Environmental Protection Equipment Co., Ltd.
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Heat pipe is a kind of heat transfer element with high thermal conductivity. It transfers heat by evaporation and condensation of the working medium in a fully enclosed vacuum tube shell. It has extremely high thermal conductivity, good isothermal properties, and heat transfer on both the cold and hot sides. The area can be changed arbitrarily, heat can be transmitted over long distances, and temperature can be controlled. Disadvantages are poor resistance to oxidation and high temperature. This disadvantage can be solved by installing a set of ceramic heat exchanger at the front. The ceramic heat exchanger better solves the problems of high temperature resistance and corrosion resistance.
Heat exchangers using heat pipes as heat transfer elements have the advantages of high heat transfer efficiency, compact structure, small fluid resistance, and good control of dew point corrosion.
At present, it has been widely used in metallurgy, chemical industry, oil refining, boiler, ceramics, transportation, light textile, machinery and other industries. As an energy-saving equipment for waste heat recovery and heat utilization in the process, it has achieved significant economic benefits.
1. The heat pipe heat exchanger can completely separate the hot and cold fluids through the middle partition of the heat exchanger. During the operation of the single heat pipe, it will not affect the operation of the heat exchanger if it is damaged due to wear, corrosion, overtemperature and other reasons. The heat pipe heat exchanger has high reliability for flammable, explosive, and corrosive fluid heat exchange applications.
2. The cold and hot fluids of the heat pipe heat exchanger are completely separated and flowed, and it is relatively easy to realize the countercurrent heat exchange of the cold and hot fluids. Both hot and cold fluids flow outside the tube. Because the heat transfer coefficient of the flow outside the tube is much higher than the heat transfer coefficient of the flow inside the tube, it is very economical for low-grade heat recovery applications.
3. For fluids with high dust content, heat pipe heat exchangers can solve the problems of heat exchanger wear and ash blocking through structural changes and extended heating surfaces.
4. When the heat pipe heat exchanger is used for corrosive flue gas waste heat recovery, 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 can avoid the largest corrosion area as much as possible.