Heat pipe is a heat transfer element with high thermal conductivity, it through the tube refrigerant shell in sealed vacuum evaporation and condensation to transfer heat, the heat transfer area has high thermal conductivity, good temperature uniformity, hot and cold sides can be arbitrarily changed, remote heat transfer, a series of advantages of temperature control. Composed of heat pipe heat exchanger has high heat transfer efficiency, compact structure, the fluid resistance loss is small, has the advantage in control the dew point corrosion. It has been widely used in metallurgy, chemical industry, oil refining, boiler, ceramic, transportation, textile, machinery and other industries, as the energy-saving equipment for waste heat recovery and heat utilization in the process, has achieved remarkable economic benefits.