Minitype fin heat-exchanging tube and method for manufacturing the same
The technology of a heat exchange tube and a manufacturing method, which is applied in the directions of heat exchange equipment, tubular elements, lighting and heating equipment, etc., can solve the problem of large size and specification of the heat exchange tube, achieve simple processing and manufacturing steps, and is conducive to miniaturization. , the effect of small size
Inactive Publication Date: 2008-08-27
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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Problems solved by technology
However, due to the large size of the heat exchange tubes used in such equipment, it largely limits the development of such equipment to miniaturization and integration.
Method used
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[0019] First preferred embodiment:
[0020] Such as figure 1 As shown, a small finned heat exchange tube of the present invention is composed of a metal capillary 1 with an outer diameter of Φ of 0.5-3.0 mm and a metal narrow strip 2 that is vertically and uniformly wound and welded on its outer surface, wherein the thickness of the metal narrow strip 2 is 0.10-0.20mm, the width is 0.25-0.50mm, the gap between two adjacent metal narrow strips 2 wound on the metal capillary 1 is 0.10-0.30mm, and the thermal conductivity of the metal narrow strip 2 is ≥100w / (m· K). Wherein, the material of the metal capillary is stainless steel, nickel, nickel alloy, copper or copper alloy; the material of the metal narrow band is copper, copper alloy, aluminum, aluminum alloy or silver and other metals with good thermal conductivity.
[0021] In this specific embodiment, the material of the metal capillary 1 used is 3161 stainless steel, and its outer diameter Φ is 0.50 mm, and the wall thick...
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Abstract
The invention discloses a small-scale finned heat exchange tube and a manufacturing method thereof. The heat exchange tube consists of a metal capillary with the outer diameter of 0.5 to 3.0mm and metal narrowbands which are vertically and evenly wound and welded on the outer surface of the metal capillary, wherein, the thickness of the metal narrowband is between 0.10 and 0.20mm, the width is between 0.25 and 0.50mm, the gap between two wound adjacent metal narrowbands is between 0.10 and 0.30mm, the thermal conductivity of the metal narrowband is more than or equal to 100w / (m.K). The manufacturing method comprises the following steps: a wire-coiling machine is used to vertically and evenly wind the metal narrowbands outside the metal capillary according to the actual need; then the regular welding method is adopted to weld the metal narrowbands wound outside the metal capillary on the outer surface of the metal capillary. The heat exchange tube of the invention has good heat exchange performance, and simple processing and production working procedures; the outer diameter of the heat exchange tube does not exceed 4.0mm, which greatly reduces the volume of the heat exchange area in the heat exchange equipment.
Description
technical field [0001] The invention relates to the technical field of heat exchange components and their manufacture, in particular to a small finned heat exchange tube suitable for heat exchangers, refrigerators, air conditioners and other related equipment and a manufacturing method thereof. Background technique [0002] With the continuous innovation and development of science and technology, equipment such as heat exchangers, condensers, refrigerators and compressors are gradually becoming smaller or miniaturized. However, since the size and specification of the heat exchange tubes used in such equipment are relatively large, it largely limits the progress of the volume of such equipment towards miniaturization and integration. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a small finned heat exchange tube and its manufacturing method in view of the deficiencies in the above-mentioned prior art. mm, which...
Claims
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Login to View More IPC IPC(8): F28F1/20B23P15/26
Inventor 牛金龙于振涛贺新杰皇甫强张亚峰袁思波刘少辉
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH