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本文针对提高SiC管高温陶瓷换热器的结构紧凑性和传热效率,对SiC光管内插入强化元件进行了工业应用试验,获得提高传热系数24％的效果。同时对新研制的小直径、薄壁SiC内翅管进行了传热试验.并以SiC内翅管为核心元件开发设计了高效、紧凑的组合式高温换热器,其工业应用试验表明该装置传热敬率高,节能效果显著,与原有SiC光管换热相比单位传热面积其体积减小60％,重量下降50％,为小型工业炉高温烟气余热回收提供了有效的装备。
In order to improve the structural compactness and heat transfer efficiency of the SiC tube high temperature ceramic heat exchanger, this article has carried on the industrial application test to insert the strengthening element in the SiC light tube, and obtains the effect of improving the heat transfer coefficient by 24%. At the same time, the newly developed small-diameter, thin-walled SiC finned tube was heat-tested, and a high-efficient and compact combined heat exchanger was developed with SiC finned tube as its core component. The industrial application shows that the device High heat transfer rate, energy-saving effect is remarkable, compared with the original heat transfer of SiC tube, the unit heat transfer area is reduced by 60% in volume and weight by 50%, which provides an effective equipment for the recovery of high temperature flue gas waste heat from small industrial furnaces .