HEAT exchanger has the advantage of high heat transfer efficiency

With the development of science and technology and industry,Heat exchange EquipmentTend to be miniaturized, lightweight, efficient and miniaturized. However, the general heat transfer equipment can not meet the above requirements, which prompted people to study efficient heat transfer equipment. Therefore, the tube-fin heat exchanger equipment has been favored by scholars as an efficient heat exchanging equipment. At present, the tube-fin heat exchanger equipment has been widely used in the field of refrigeration and air-conditioning. The core component is the tube bundle within the heat exchanger. In order to improve the heat transfer performance, it is a very effective method to enhance the heat transfer by adding fins on the surface of the base tube. Compared with the tube, the fin tube has compact structure, flexible material and reasonable. The material selection of tubing and fin is different, the advantages of high heat transfer efficiency.
There are many kinds of finned tubes. Fin Tube According to the location of the installation of fins, there are two kinds of internal fin tube and outer fin tube, of which the application of the outer fin tube is more common. According to the arrangement of fins, there are two kinds of finned tubes: longitudinal finned tubes and horizontal finned tubes. According to the shape of finned tube, fin tube has circular fin tube, oval fin tube and flat tube fin tube. At present, the circular fin tube heat exchange equipment field occupies a dominant position, but a large number of experiments show that the return area and windward area of the elliptical tube is much smaller than the circular fin tube, effectively reducing the flow resistance of the air side A. Reduce the energy consumption. When the number of tube bundles is simultaneous, the elliptical and flat tubes are more tightly structured than the circular tubes. The heat transfer equipment is smaller and the cost is reduced. Therefore, the research and development of elliptical tube-fin heat transfer equipment has attracted more and more scholars ' attention.

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