In order to reasonably improve the heat transfer efficiency of steel aluminum finned tube in the whole process of application, the plate fin type can be added on the surface of heat exchanger tube to reasonably improve the total surface area of heat exchanger tube or the total internal standard area of heat exchanger tube, which can also achieve the purpose of improving the heat transfer efficiency of steel aluminum finned tube. Steel aluminum finned tube is a kind of wear-resistant, new and high-efficiency thermal raw material. In the whole process of application, it is a kind of high-efficiency, environmental protection and energy-saving heat transfer components. The key of machinery and equipment is to use high-voltage power supply as the thermal source. If the seamless steel tube and its steel chain are heated separately, it will make the arc welding together and become one.
Steel aluminum finned tube has the advantages of high heat exchange efficiency and large total heat removal area, long service life of all commodities and wide temperature coverage. Commodities are widely used in petrochemical equipment, boiler economizer, waste heat recovery, greenhouse, power station boiler, wood drying and other industrial production industries.
Steel aluminum finned tube installation operation and economic development reduces the node, so the installation equipment will be more and more economic development and convenient, to a certain extent also reduces the water seepage probability of the joint, commodity maintenance is simple, after the installation, most of the maintenance is no longer carried out.
The application of steel aluminum finned tube is highly efficient. In the whole process of manufacturing, it is reasonable to weld seamless steel tube and plate fin coiled full contact electric welding. Its total heat removal area is more than 8 times that of bare tube. The interior of the commodity will be more smooth and smooth, and the friction resistance of internal water is relatively small.
At present, laser welding of steel aluminum finned tube is a more excellent technical commodity, which has irreplaceable advantages.
1: The thickness of the base tube can be 0.8-1.5mm, and the thickness of the plate fin type can be 0.3-1MM. Compared with the gender processing technology, the cost of raw materials is greatly saved.
2: High penetration rate can avoid void erosion, increase service life and reduce heat transfer coefficient.
3: Improve the limit of raw materials, and use different raw materials to carry out production and processing.
4: Convenient for secondary production and processing, fan coil and elbow can be carried out immediately.
5: The welding heat hazard zone is small and the metallographic analysis transformation is small, which makes the production and processing of steel and aluminum finned tube become a hot spot.
