Air preheater is fuel, coal, gas boiler equipment, smoke vents installed in the boiler or flue, heated air after the flue gas heat recovery, hot and dry materials can be used as boiler combustion. Constructed as shown in Figure: four weeks header, the intermediate partition plate separating the side of the channel, for the whole finned tube heat pipe, a single heat pipe can be replaced. When working, high temperature gas flows upward from the left channel scour heat pipes, heat pipe heat absorption at this time, the temperature of the flue gas heat drop. Heat pipe heat absorption leads to the right end of the heat pipe cold air reverse erosion down from the right channel, at the heat pipe heat, air temperature endothermic. Flue gas heat recovery outlet temperature not lower than the dew point. Heat pipe air preheater performance characteristics 1, easy installation: The installation does not require heat recovery boilers or industrial furnaces original to make changes. 2, safe and reliable: Good isothermal heat pipe performance, resulting in no masonry natural ventilation resistance when dirt and thermal conductivity, heat transfer efficiency is always good, does not affect the work of the boiler or furnace. 3, long life: heat pipe heat recovery unit for more than 10 years of life, a single removable heat pipe replacement, simple and low maintenance costs. 4, energy efficiency is good: large industrial furnace efficiency can be increased by more than 10% of small and medium oil, gas, coal-fired boiler efficiency can be increased by 3% to 18% energy saving. 5, the payback period is short: general 3-8 months can recover the full investment I. Introduction heat pipe heat pipe is a highly thermally conductive element, which uses phase change within the working fluid tube to achieve energy from high temperature to low temperature effective transfer. It has good isothermal and temperature resistance, hot superconductor. In recent years, the application of heat pipe air preheater has made great progress in the power plant boiler, the country has various models of successful application utility boilers. Produced by heat pipe air preheater and supporting various types of boilers, especially in the 10t / h - to achieve satisfactory results on a 35t / h boiler. Second, the structural characteristics of the device heat pipe air preheater by the cabinet, the heat pipe tubes, the divisions. The box is divided into two sides: the fluid for flue gas side, the side of the fluid is air. Features: 1, Central partition separating flue gas and air, heat pipe back in the ring and sealed bulkhead, side fluid is not streaming. 2, flue gas and air through the tube outer surface of the heat exchanger, the heat transfer area is easy to expand. 3, adjustable fittings from the surface of the fin and fin control gas side wall temperature to avoid blocking the ash and acid corrosion. 4, a small pipe leak through will not cause smoke and air streaming. Third, equipment installation and use of heat pipe air preheater flue should be installed to maintain the level of imports into the device smoke, cold air should reverse the direction of imports and smoke direction. Fourth, the device Ordering Information 1, the order should provide the flue gas temperature, air temperature, flow, and other technical parameters and on-site installation, layout size requirements. 2, if special requirements, the company will also be designed and manufactured in accordance with the requirements of the various boiler types and coal. 3, the company may also undertake complete system installation and commissioning. 4, the company * shipping.