What are the advantages of high frequency welding spiral finned tubes?

In order to understand the working principle of high frequency welded finned tubes, it is necessary to introduce the heat transfer coefficient first. The heat transfer coefficient mainly refers to the heat transfer per unit temperature difference and unit heat transfer area, which can reflect the heat transfer capacity between the fluid and the wall. High-frequency welded finned tube is a heat exchanger composed of round tube or smooth tube, so how can we improve the heat transfer of round tube?

High frequency welded finned tube

In order to solve this problem, the ideal measure at present is to weld the outer surface of the finned tube at high frequency, that is, the extension surface of the flue gas side, that is, to make the finned tube. Moreover, under the condition of constant total heat transfer, the metal consumption of the equipment can be reduced and the cost can be saved. Then, in practical application, what are the characteristics of high-frequency welded finned tubes?

High frequency welded finned tube

For example, when it is used in heat pipe air preheater series, it absorbs waste heat from flue gas to heat combustion-supporting air to reduce fuel consumption and improve combustion conditions, or absorbs waste heat from flue gas to heat gas and other gas media. In addition, high-frequency welded finned tubes can also be used in heat pipe economizer series. At the same time, high-frequency welded fin tubes are also used in heat pipe waste heat boilers, that is, evaporator series. The heat pipe is used as a heat transfer element to absorb the waste heat of high-temperature flue gas to generate steam, which can be connected in parallel to the steam pipe network, and can also be used for power generation and other occasions by using high-frequency welded fin tubes.

High frequency welded finned tube