1. Design Principle: heat pipe air preheater is carried by the use of the boiler flue outlet heat transfer through the superconducting heat pipe, used to preheat boiler combustion air or other drying purposes. 2. The formal structure: Our company manufacturing of heat pipe air preheater place using reset form, smoke and reverse air flow level to form a gas - gas heat exchanger, flue gas heat exchanger to maximize efficiency. Heat pipe air preheater by the cabinet, bundle, consisting of the middle partition, box divided into two sides: one side of the fluid is a gas, one side of the fluid is air. Heat pipe air preheater take advantage of the heat pipe heat transfer speed, high efficiency heat transfer characteristics, effectively overcome the time gas heat transfer coefficient is not high. Wall heat transfer area of ??the heat pipe can be used at both ends of a modest expansion of the use of fins, this treatment is not only to strengthen the outer heat pipes, but also effectively reduces the size and weight of the heat exchanger, saving metal supplies, you can get a cost-effective heat exchanger. At the same time, by adjusting the heat pipe heat side and heat flux heat side, changing the heating side and the heat transfer area of ??the side, which can effectively avoid the fluid tubes acid dew point corrosion on the energy efficiency of the heat pipe air preheater used in boilers . You can improve boiler inlet temperature above 120 ℃. Preheated air temperature increase is conducive to fully burn the fuel in the furnace, the furnace temperature greatly improved, a corresponding reduction in fuel use, boiler thermal efficiency of more than 7% energy cost is quite remarkable.