Inner petal fin heat exchange tube capable of efficiently enhancing heat transfer

Abstract

The invention provides an inner petal fin heat exchange tube capable of efficiently enhancing heat transfer, and relates to the technical field of heat exchange tubes, the heat exchange tube comprises an outer tube, the inner wall of the outer tube abuts against first petal fins, a plurality of first petal fins are annularly arranged at the center of the outer tube, and the first petal fins are connected end to end through second petal fins; the first petal fins are arranged in a U shape. Compared with a threaded pipe and transverse channel steel, the inner petal fin heat exchange pipe is good in heat transfer performance, does not need to process an outer pipe, is easy to manufacture and low in cost, mainly increases heat transfer of the inner side of the pipe, is high in inner side fins and large in heat exchange area of strength, and is larger than the heat exchange area without fins after the inner fins are increased, so that the heat exchange efficiency is improved. The petal fins are pulled out through a special mold, standardized production can be achieved, manufacturing is easy, the service life is long, after the petal fins on the inner side stretch into the pipe, the pipe and the fins are tightly attached through a special technology, and the heat transfer effect is high.

Description

technical field [0001] The invention relates to the technical field of heat exchange tubes, in particular to an inner petal-fin heat exchange tube with high efficiency and enhanced heat transfer. Background technique [0002] In some heat exchangers, heat exchange tubes are usually used. The heat exchange tube is one of the components of the heat exchanger and is placed inside the cylinder for heat exchange between two media. Has high thermal conductivity and good isothermal properties. It is a device that can quickly transfer heat energy from one point to another, and there is almost no heat loss, so it is called a heat transfer superconductor, and its thermal conductivity is thousands of times that of copper. Common materials include carbon steel, low Alloy steel, stainless steel, copper, copper-nickel alloy, aluminum alloy, titanium, etc. In addition, there are some non-metallic materials, such as graphite, ceramics, polytetrafluoroethylene and so on. Appropriate mater...

AI Technical Summary

Problems solved by technology

[0004] There are many problems and disadvantages in this structure: the light pipe is used as the heat exchange pipe, and the heat transfer effect is not good.

Using corrugated tubes or transverse groove tubes as heat exchange tubes increases the heat exchange area inside and outside the tubes, but after the tubes are processed, the damage to the tube walls is large, and the processing technology is difficult, especially for high-strength materials. difficulty

and high cost

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