High-efficiency corrosion resistant heat-transfer pipe

Abstract

The invention relates to an efficient corrosion-resistant heat transfer tube, which is applied in flow medium in the tube and has corrosive fluid. A high heat conduction material tube is rolled outside a low heat conduction material tube, corrosion-resistant material which contacts corrosive fluid exists inside the low heat conduction material tube, the high heat conduction material tube is externally processed into various types of fins, two contact surfaces of the high heat conduction material tube and the low heat conduction material tube are made polishing treatment in advance, then the high heat conduction material tube closely contacts the inner tube through the stretching, finally the gap between the two materials is further reduced during the rolling of the fins of the high heat conduction material, thereby ensuring that the contact heat resistance is reduced, and the corrosion-resistant performance of the efficient corrosion-resistant heat transfer tube is consistent with that of a low heat conduction material enhanced tube; the whole heat transfer performance is higher than that of the low heat conduction material enhanced tube; a heat exchanger assembled by the efficient corrosion-resistant heat transfer tube can save the consumption of the materials, and can be applied in fields such as petrochemical industry, air conditioning and refrigeration, and sea water desalination and so on.

Description

technical field [0001] The invention relates to a heat transfer tube, in particular to a high-efficiency corrosion-resistant heat transfer tube applied to the corrosive fluid flowing in the tube, which can be applied to the fields of petrochemical industry, air-conditioning and refrigeration, seawater desalination and the like. technical background [0002] Heat exchangers are widely used in petrochemical, seawater desalination, air-conditioning and refrigeration, aerospace and other industrial and technical fields. For example, in the air-conditioning and refrigeration industry, the flow medium inside the heat transfer tube of the heat exchanger is usually water, and the outside of the tube is refrigerant. The pipe is generally made of red copper with high thermal conductivity. In some special occasions, the flowing medium in the tube is a highly corrosive fluid (such as sea water), and the copper tube is difficult to meet the needs. At this time, it is necessary to use al...

AI Technical Summary

Problems solved by technology

One of the reasons for the drop in heat transfer coefficient is the low efficiency of fins of low thermal conductivity materials

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