Waste heat recovery boiler heat exchanger is the most important part of the heat exchanger heat recovery energy saving effect is good or bad decision is good or bad, it is essential to determine how good or bad the heat exchanger. How to determine the quality of the heat exchanger? Actually very simple, through the heat exchanger temperature difference between the import and export media judgment. Temperature difference the higher the better. I produced the boiler heat exchanger to maximize heat exchange, but infinitely cool. Meanwhile, we should also consider the acid corrosion of equipment, so we can set the minimum temperature by the heat transfer area of ??the heat pipe design to ensure long life and energy efficiency equipment. Heat pipe heat exchanger boiler manufacturing core technology. Heat pipe is a heat transfer element having a high conductivity properties, which closed vacuum envelope by the working fluid evaporation and condensation to transfer heat, with a high thermal conductivity, good heat transfer and other warm, hot and cold sides of the area can be arbitrarily changed, long-distance heat, temperature-controlled series of advantages. I manufactured heat pipe is a gravity type heat pipe, the inner tube is made of 20 / GB3087 boiler pipe, first evacuated to a 1-2x10-4Pa negative pressure within the sealed tube, filled with the right amount of working fluid in the lower end of the heat pipe is heated, the working fluid absorbs heat of vaporization steam, at a small differential pressure, rise to the upper end of the heat pipe, heat release to the outside world, to condense into a liquid. Condensate under the action of gravity, heat pipe wall along a return to heat segments and heat vaporized again, and so on ad infinitum, continuous heat transfer from one end to the other end. Since the phase change heat transfer, heat pipe thermal resistance is small, the high thermal conductivity of the heat pipe as compared with silver, copper, aluminum and other metals, the unit weight of the heat pipe can deliver several orders of magnitude more calories, they are able to obtain a small temperature difference the larger the heat transfer rate, and a simple structure, with one-way heat transfer characteristics, especially due to the unique mechanism of heat pipes, heat exchange between the hot and cold fluids are conducted outside of the tube, which can be easily enhanced heat transfer . Because of the heat pipe inside evacuated, the working fluid can easily boil and evaporate very rapidly and start the heat pipe. Composed by the heat pipe heat pipe heat exchanger has a high heat transfer efficiency, compact structure, fluid resistance is small loss, help control dew point corrosion advantages. Currently already widely used in boilers, metallurgy, chemical industry, oil refining, ceramics, transport, textile, machinery and other industries, as the waste heat recovery and energy use in the process of energy-saving equipment, and achieved significant economic benefits.