Aluminum spiral radiator

Abstract

Provided is an aluminum spiral radiating pipe having the advantages of simple structure, long service life, low flow contact thermal resistance and excellent heat-transfer capability. The radiating pipe includes heat transfer tube and spiral fin, characterized in that the spiral fin and the heat transfer tube are to become integrated by hot-extrusion.

Description

(1) Technical field [0001] The invention relates to a spiral cooling fin tube used in heat exchange equipment, in particular to an aluminum spiral cooling tube. (2) Background technology [0002] Generally, the structure of the inner spiral finned tube used in heat exchange equipment is composed of a heat transfer tube, an inner spiral fin guide vane arranged in the heat transfer tube, and an inner spiral fin guide vane provided at both ends of the heat transfer tube to prevent Slide out of the jam pose. Since the inner spiral fin guide vane is brazed on the inner wall of the heat transfer tube, the connection between the two is not tight enough, and the gap between the two is relatively large, resulting in poor thermal conductivity. At the same time, the gap between the spiral guide vane and the heat transfer tube It is easy to inject the circulating medium and cause the heat transfer tube to be corroded, which greatly shortens the service life. (3) Contents of the inven...

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Problems solved by technology

Since the inner spiral fin guide vane is brazed on the inner wall of the heat transfer tube, the connection between the two is not tight enough, and the gap between the two is relatively large, resulting in poor thermal con

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