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Multi-channel flat pipe and its making process and apparatus

A multi-channel, flat tube technology, applied in lighting and heating equipment, manufacturing tools, welding equipment, etc., can solve complex tooling design, difficult to solve, complex tooling problems and other problems

Active Publication Date: 2010-05-12
GOLDEN DRAGON PRECISE COPPER TUBE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These process methods are characterized by very complex tooling designs, leaving narrow channels for the passage of metal
In comparison, the thermal processing temperature of copper is much higher than that of aluminum. If copper is used to make multi-channel flat tubes, the problem of tooling will become more complicated and difficult to solve.

Method used

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  • Multi-channel flat pipe and its making process and apparatus
  • Multi-channel flat pipe and its making process and apparatus
  • Multi-channel flat pipe and its making process and apparatus

Examples

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Embodiment Construction

[0022] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0023] Figure 1a shows a schematic cross-sectional view of a multi-channel flat tube 1 according to an embodiment of the present invention, Figure 1b A schematic cross-sectional view of a multi-channel flat tube 1 according to another exemplary embodiment of the invention is shown. As shown in the figure, a plurality of metal tubes 10 are arranged side by side, and a piece of metal strips 12 and 14 are respectively connected to the upper and lower sides of the side-by-side metal tubes 10 to form a multi-channel flat tube 1 . The cross-section of the metal tube 10 used in the multi-channel flat tube 1 of the present invention can be as follows Figure 1a The rectangle in , can also be as Figure 1b The square in , can also be such as image 3 The drum shape shown, or other suitable shape, may even be a circle where saving machining costs is more impor...

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Abstract

The present invention discloses one kind of multi-channel flat pipe comprising parallel arranged metal pipes and two metal strips on two ends of these pipes and its making process and apparatus. The making process includes arranging parallel metal pipes and connecting two metal strips to ends of the parallel metal pipes. The making apparatus includes several metal pipe reels to unwinding parallelmetal pipes, two metal strip reels to unwinding two metal strips, one clamping device to arrange the parallel metal pipes, one connecting device to connect the parallel metal pipes and two metal strips to form the multi-channel flat pipe, one operating stage, and one reel for winding the multi-channel flat pipe product.

Description

technical field [0001] The invention relates to heat exchanger pipes, in particular to a multi-channel flat pipe and its manufacturing method and equipment. Background technique [0002] Commercial and residential heat exchangers used in the Heating Ventilation Cooling (HVAC) industry have traditionally used round copper bare tubes or high efficiency internally threaded and externally finned aluminum tubes. The heat transfer efficiency of this design is limited by the ability to transfer heat from the aluminum finned tubes to the airflow. [0003] In recent years, the automotive industry has developed the so-called parallel flow heat exchanger, which uses multi-channel flat tubes. Compared with the traditional heat exchanger made of round tubes and outer finned tubes, it is characterized by higher heat transfer performance. [0004] But the multi-channel flat tubes used in automobile heat exchangers are all made of aluminum or aluminum alloy tubes, because there is no mult...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F1/04B23K20/10B23K11/00B23K20/00B23K101/04
Inventor 默瑞·软特纳李长杰周永利张金利王凯余汪洋程骥冯振国邓斌娄小磊孙伟
Owner GOLDEN DRAGON PRECISE COPPER TUBE GROUP