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Method for processing compound pipe of heat excahnger

A processing method and heat exchanger technology, applied in heat exchange equipment and other directions, can solve problems such as polluted water and leakage, and achieve the effects of good thermal conductivity, smooth inner wall of the pipe and good corrosion resistance

Inactive Publication Date: 2010-10-06
广东华天成新能源科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings in the above-mentioned prior art, and provide a processing method for heat exchanger composite tubes with simple process, good corrosion resistance, good thermal conductivity, and smooth inner wall of the tube; The problem of fluid leakage polluting water quality

Method used

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  • Method for processing compound pipe of heat excahnger
  • Method for processing compound pipe of heat excahnger

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Such as figure 1 As shown, a processing method for heat exchanger composite tubes, the metal outer sleeve 2 with a larger diameter and corrosion resistance is tightly sleeved on the metal inner sleeve with a smaller diameter by rolling with an outer roller knife or a roller bar 1 At the same time, the inner cavity of the metal inner sleeve 3 is sleeved and expanded to tighten the mandrel 4, so that the metal inner sleeve 3 and the inner wall 201 of the metal outer sleeve 2 are closely attached to realize the double-layer composite of the metal tube.

[0019] The processing method of the above-mentioned heat exchanger composite tube specifically also includes the following steps:

[0020] Firstly, according to the installation specifications of the composite pipe, the metal inner and outer casing blanks 3 and 2 of different materials are cut and ...

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Abstract

The invention relates to a method for processing a compound pipe of a heat exchanger, which is characterized in that: a metal outer sleeve pipe (2) with larger diameter and corrosion resistance is tightly sleeved on a metal inner sleeve pipe (3) with smaller diameter through an external cylinder knife or roller rod (1); meanwhile, an inner cavity of the metal inner sleeve pipe (3) is inserted with an expansion arbor (4) to make the metal inner sleeve pipe (3) tightly attached to the inner wall (201) of the metal outer sleeve pipe (2) so as to realize double-layer compounding of the metal pipes. The method for processing the compound pipe of the heat exchanger has the advantages of good corrosion resistance, good heat conductivity, smooth inner wall of the pipe body and the like; the manufacturing process is simple and reasonable; and the finished product ratio is high.

Description

technical field [0001] The invention relates to the technical field of heat exchangers for heat pumps, in particular to a processing method for heat exchanger composite tubes with simple process, good corrosion resistance and good thermal conductivity. Background technique [0002] In existing heat exchangers for heat pumps, the heat exchange tubes are usually arranged in a single tube type. The working principle is to exchange heat between the fluid body and water flowing between the inside and outside of the tube. The structure is simple, but The pipe is made of ordinary steel pipe or copper pipe, and the wall of the pipe body is in contact with the fluid body for a long time, which has poor corrosion resistance and affects the service life of the heat exchanger; moreover, if the fluid body in the heat exchange tube leaks out into the water, it will It pollutes the water body and damages human health. Therefore, in case the fluid leaks out, it cannot be allowed to enter th...

Claims

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Application Information

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IPC IPC(8): B21D53/06
Inventor 郭建毅
Owner 广东华天成新能源科技股份有限公司