Integral external finned tube and method for manufacturing the same
A manufacturing method and integral technology, applied in tubular elements, lighting and heating equipment, heat exchange equipment, etc., can solve the problem of uncompact structure of heat exchange tube fins, limited effect of enhanced heat transfer, limited shape of finned tubes, etc. problem, to achieve enhanced steam condensation and convective heat transfer performance, compact structure, and simple manufacturing process
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[0027] The present invention will be further described below through embodiment and accompanying drawing, but the present invention is not limited to this embodiment.
[0028] Such as figure 1 , 2 As shown, the integral finned tube of the present invention is composed of a base tube 1, fins 2, and channels 3. The channels 3 are distributed on the outer surface of the base tube 1 at a helix angle of 60 degrees, and between the channels 3 Fins 2 are distributed.
[0029] Such as figure 2 As shown, the cross-sectional shape of the base pipe 1 is circular, the channel 3 is trapezoidal, the periphery of the fins is fan-shaped, and the surface is flat.
[0030] During processing, the base pipe 1 with the groove 3 is produced first by hot extrusion, cold extrusion, rolling or other die-casting methods, such as image 3 shown. A cutting tool 4 is then used to cut the base tube between the channels to form the fins, as Figure 4 shown.
[0031] Such as Figure 5 As shown, the ...
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