Anticorrosion of finned tube heat exchanger

January 14, 2023

During the use of Finned Tube heat exchangers, it is very important to prevent corrosion phenomena. In order to prevent this phenomenon, some corrosion-resistant materials are used in the production process, such as some Stainless steel and aluminum alloys, which have relatively Strong Corrosion Resistance. Effectively improve the life of the Heat Exchanger. However, the cost of such materials is generally relatively high, so the purchase price is relatively high. Use some corrosion inhibitors, in corrosive media, add some small amount of substances to greatly reduce the corrosion performance of the metal, and then stop, it is also some corrosion inhibitors we use.

Electrochemical protection is used to protect the cathode and anode, the protection of the cathode DC power supply and the protection of the anode on the metal surface. The power consumption used in this way is very large, and the use cost is naturally high. It is protected by anode protection method of anode protection of the equipment external power supply. The basic function of the Finned Tube Heat Exchanger is to transfer heat and transfer part of the heat of the hot fluid to the cold fluid. Therefore, improving the use capacity of the heat exchanger is to improve its heat transfer performance, so as to realize the heat exchanger. heat transfer. Under the premise of comprehensive consideration of fluid resistance and no fluid-induced vibration, the flow rate should be as high as possible. For fluids without phase change, heat transfer as close to countercurrent as possible should be used. This is done to increase the average temperature difference and reduce heat transfer in the structure.

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