Aluminum fin copper tube Embedded G type fin tube

The aluminum fin copper tube Embedded G type fin tube is a process that uses a copper tube as the base tube, then slots the base tube, and inserts the aluminum strip into the slot for spiral winding.

In order to better improve the heat exchange efficiency, fins are usually added to the surface of the heat exchange tube. G-type fin tubes increase the heat exchange efficiency by increasing the total surface area (or inner surface area) of the heat exchange tube. This kind of heat exchange tube is called G-type fin tube.



Fin tubes can be divided into square fin tubes, spiral fin tubes, longitudinal fin tubes, spiral serrated fin tubes and inner fin tubes according to their shape and structure. Fin tubes can be divided into single metal fin tubes and bimetal composite fin tubes according to materials; according to different processing techniques, fin tubes can be divided into: rolled fin tubes, welded fin tubes, rolled fin tubes and nested finned tubes.

G-type fin tube is a heat exchange element attached to the surface of the heat exchange tube. The heat exchange components have improved warpage and therefore increased surface area, allowing for better heat exchange. Since finned tubes are assembled on machinery and equipment such as boilers, they must withstand the test of continuous high temperatures. When selecting finned tubes, choose the following finned tubes with outstanding performance.

1. Fin tubes have strong corrosion resistance. If the finned tube selected is not strong in corrosion resistance, it will be easily corroded under continuous high temperature conditions.
Second, the finned tube has strong wear resistance. If the fin tubes are worn, the heat exchange efficiency will be disturbed to a certain extent, so fin tubes with strong wear resistance should be selected.
3.G-type fin tube has low contact thermal resistance. Only by choosing finned tubes with low contact thermal resistance can the performance of the finned tubes be maintained under continuous high temperature conditions;
4. Fin tube has strong stability. Only by choosing fin tubes with strong stability will they not interfere with the heat transfer performance under continuous high temperature conditions;
5. The finned tube has good anti-ash ability.



The installation operation of Embedded G type fin tube is simple and economical, the connection points are greatly reduced, the assembly is more economical and effective, the probability of connector leakage is reduced accordingly, the product maintenance is simple and convenient, and basically no maintenance is required after assembly.

After the Embedded G type finned tube absorbs solar radiation, the temperature difference between the top and the root of the fin is large, the average temperature of the fin increases, and the heat transfer temperature difference with the environment decreases, which is not conducive to the absorption of air energy. As the fin height increases, the convective heat transfer of the fins first increases and then decreases, and a peak will appear. Therefore, the higher the fin height, the better. When the fin height and solar radiation intensity are both high, the fins will release heat to the environment. At this time, the smaller convection heat transfer coefficient is conducive to increasing the heat transfer. When the fluid temperature and heat transfer coefficient in the tube are known, a theoretical model of a single G-shaped fin tube in another collector/evaporator is established, and the theoretical solutions of the temperature field and heat transfer are theoretically derived.