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热管换热器以其新型、高效的传热方式,多样结构,使用灵活方便的特点,近几年在工业余热回收中发挥了良好的作用。但在长期的使用过程中,翅片管表面会产生积灰,严重影响了换热器的正常运行。由于各类烟气,无论是燃煤、燃油或气体燃料,都不同程度地带有飞灰和烟尘,在操作环境恶劣、粉尘大的地方,烟气中含尘量更高。当含尘烟气流经换热器冲刷受热面时,日积月累就产生积灰,轻则使受热面热阻上升,降低换热器的传热效率,并能使烟道流通截面减小,烟气流动阻力增大;重则使烟道堵塞,换热器失效,影响设备的安全性和经济
Heat pipe heat exchanger with its new and efficient heat transfer, a variety of structures, the use of flexible features, in recent years in industrial waste heat recovery played a good role. However, in the long-term use process, the fins will produce fouling on the surface of the fin tube, seriously affecting the normal operation of the heat exchanger. Due to various types of flue gas, whether it is coal-fired, fuel oil or gas fuel, fly ash and dust are carried to varying degrees. In places where the operation is harsh and the dust is big, the dust content in flue gas is higher. When dust flue gas flows through the heat exchanger scouring the heated surface, accumulated ash will be produced over time, causing the thermal resistance of the heated surface to increase, reducing the heat transfer efficiency of the heat exchanger and reducing the flow cross section of the flue and the flue gas flow Resistance increases; heavy then the flue blockage, heat exchanger failure, affecting the safety of equipment and economy