JPS62114736A - Manufacture of heat exchanger tube with fin - Google Patents

Manufacture of heat exchanger tube with fin

Info

Publication number
JPS62114736A
JPS62114736A JP25426285A JP25426285A JPS62114736A JP S62114736 A JPS62114736 A JP S62114736A JP 25426285 A JP25426285 A JP 25426285A JP 25426285 A JP25426285 A JP 25426285A JP S62114736 A JPS62114736 A JP S62114736A
Authority
JP
Japan
Prior art keywords
heat exchanger
exchanger tube
heat exchange
fin
exchange tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP25426285A
Other languages
Japanese (ja)
Inventor
Minobu Sukimoto
鋤本　己信
Noboru Ooneyama
大根山　昇
Nobuo Inaba
稲葉　信夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Altemira Co Ltd
Original Assignee
Showa Aluminum Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP25426285A priority Critical patent/JPS62114736A/en
Publication of JPS62114736A publication Critical patent/JPS62114736A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE:To easily and efficiently manufacture a heat exchanger tube provided with a fin, by providing many notches in the width direction, on a plate-shaped fin of the outer surface of an Al heat exchanger tube blank material having parallel recessed lines on the inner surface, and thereafter, bending said base material to a spiral shape. CONSTITUTION:In an Al extruded shape made heat exchanger tube blank material 11 which has parallel recessed lines 3 extending in the length direction on the inner surface, and also formed by providing a plate-shaped fin 12 on at least one side of the outer surface, many notches 13 in the width direction are provided on said plate-shaped fin 12. Subsequently, the blank material 11 having many strip-shaped fins 2, which has been obtained in this way is bent to a spiral shape as a whole. In this way, a heat exchanger tube 1 provided with a fin is obtained by generating a torsion desirably so that the torsion angle becomes about 3-14 deg. in said recessed lines 3. Said heat exchanger tube 1 generates a turbulent flow effect by said twisted recessed lines 3, and the thermal efficiency is improved.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、蒸発器等に使用せられるフィン付き熱交換
管の製造法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a method for manufacturing finned heat exchange tubes used in evaporators and the like.

従来の技術 従来、例えば冷蔵庫用蒸発器に使用せられるフィン付き
熱交換管は、例えば第５図に示すように、−側にプレー
ト状フィン（２２）を有するアルミニウム押出型材製熱
交換管素材（２１）を、正面よりみて蛇行状に折り曲げ
ることにより製造されていた。しかしながら、従来のフ
ィン伺き熱交換管は、管内面が平滑であるため、冷媒液
の蒸発が少なく、蒸発器としての熱効率が劣るという問
題があった。2. Description of the Related Art Conventionally, a heat exchange tube with fins used in a refrigerator evaporator, for example, has a heat exchange tube material made of an extruded aluminum material (22) having plate-like fins (22) on the negative side, as shown in FIG. 21) was manufactured by bending it into a meandering shape when viewed from the front. However, since the conventional finned heat exchange tube has a smooth tube inner surface, there is a problem in that there is little evaporation of the refrigerant liquid, resulting in poor thermal efficiency as an evaporator.

発明の目的 この発明の目的は、上記の問題を解決し、管内面での冷
媒液の蒸発が非常に速やかに行なわれ、蒸発器としての
熱効率の向上に寄与することができ、しかもきわめて作
業容易で、フィン付き熱交換管を能率よく製造し得る方
法を提供しようとするにある。Purpose of the Invention The purpose of the present invention is to solve the above-mentioned problems, and to provide a system in which the refrigerant liquid evaporates on the inner surface of the tube very quickly, contributes to improving the thermal efficiency of the evaporator, and is extremely easy to work with. Therefore, it is an object of the present invention to provide a method for efficiently manufacturing finned heat exchange tubes.

発明の構成 この発明は、上記の目的を達成するために、内面に長さ
方向に伸びる並列状の凹条を有しかつ外面の少なくとも
一側にプレート状フィンを有するアルミニウム押出型材
製熱交換管素材のプレート状フィンに、幅方向の多数の
切り目を設ける工程と、フィン付き熱交換管素材を、全
体として螺旋状に屈曲せしめる工程とよりなる、フィン
付き熱交換管の製造法を要旨としている。Structure of the Invention In order to achieve the above object, the present invention provides a heat exchange tube made of an extruded aluminum material, which has parallel grooves extending in the longitudinal direction on the inner surface and plate-like fins on at least one side of the outer surface. The gist is a method for manufacturing finned heat exchange tubes, which includes the steps of making a number of cuts in the width direction of the plate-shaped fin material, and bending the finned heat exchange tube material as a whole into a spiral shape. .

実　　施　　例 つぎに、この発明の実施例を図面に基づいて説明する。Example Next, embodiments of the invention will be described based on the drawings.

この発明の実施例を示す第１図〜第４図において、この
発明の方法はつぎの工程よりなるものである。In FIGS. 1 to 4 showing embodiments of the present invention, the method of the present invention includes the following steps.

第１工程：第３図と第４図に示すように、内面に長さ方
向に伸びる並列状の凹条（３）を有しかつ外面の一側に
プレート状フィン（１２）を右するアルミニウム押出型
材製熱交換管素材（１１）のプレート状フィン（１２）
に、幅方向の多数の切り目（１３）を設ける。First step: As shown in Figures 3 and 4, aluminum has parallel grooves (3) extending in the length direction on its inner surface and plate-shaped fins (12) on one side of its outer surface. Plate-shaped fins (12) made of extruded heat exchange tube material (11)
A large number of cuts (13) are provided in the width direction.

第２工稈：つぎに第１工程より得られた多数の短冊状フ
ィン（２）付き熱交換管素材（１１）を、第１図と第２
図に示すように、全体として螺旋状に屈曲せしめ、フィ
ン（２）付き熱交換管（１）を製造する。Second culm: Next, the heat exchange tube material (11) with a large number of strip-shaped fins (2) obtained from the first step is
As shown in the figure, a heat exchange tube (1) with fins (2) is manufactured by bending the entire tube in a spiral shape.

上記において、管素材（１１）の内面に設りる凹条（３
）の深さは、例えば０．１〜０．４．ｍｍ、ピッチは０
．３〜Ｑ、３ｍｍである。また熱交換管素材（１１）を
螺旋状に屈曲ｕしめることにより四条（３）にねじれが
発生し、そのねじれ角度は３〜１４°である。上記の方
法により製造されたフィン（２）付き熱交換管（１）は
、その内面にねじれた凹条（３）が多数存在するため乱
流効果が生じ、これを蒸発器として使用した場合冷媒液
の蒸発が促進され、内面が平滑なフィン付き熱交換管の
場合と比べて約３〜１０％熱効率が向上するものである
。In the above, the grooves (3) provided on the inner surface of the pipe material (11)
) is, for example, 0.1 to 0.4. mm, pitch is 0
．． 3~Q, 3mm. Further, by spirally bending the heat exchange tube material (11), the four threads (3) are twisted, and the twist angle is 3 to 14 degrees. The heat exchange tube (1) with fins (2) manufactured by the above method has a large number of twisted grooves (3) on its inner surface, which causes a turbulent flow effect, and when used as an evaporator, the refrigerant The evaporation of the liquid is promoted, and the thermal efficiency is improved by about 3 to 10% compared to the case of a finned heat exchange tube with a smooth inner surface.

なお、図示のフィン（２）付き熱交換管（１）は、螺旋
状に屈曲せしめたのち、全体として略Ｕ形に折り曲げら
れているが、これに限らず、フィン付き熱交換管（１）
は単に螺旋状に曲げられたものであってもよい。In addition, although the illustrated heat exchange tube (1) with fins (2) is bent spirally and then bent into a substantially U shape as a whole, the heat exchange tube (1) with fins (2) is not limited to this.
may simply be spirally bent.

またフィン（２）付き熱交換管（１）は、蒸発器だけで
なく凝縮器その他の熱交換器としても使用可能である。Furthermore, the heat exchange tube (1) with fins (2) can be used not only as an evaporator but also as a condenser or other heat exchanger.

発明の効果 この発明によるフィン付き熱交換管の製造法は、上述の
ように、内面に長さ方向に伸びる並列状の凹条（３）を
有しかつ外面の少なくとも一側にプレート状フィン（１
２）を有するアルミニウム押出型材製熱交換管素材（１
１）のプレート状フィン（１２）に、幅方向の多数の切
り目（１３）を設（′Ｊる工程と、フィン（２）付き熱
交換管管素材（１１）を、全体とじで螺旋状に屈曲せし
める工程とよりなるもので、この発明の方法によれば、
フィン付き熱交換素材（１１）を螺旋状の屈曲せしめる
ことにより、あらかじめ管素材（１１）の内面に設けら
れている凹条（３）にねじりが加わり、従ってこのフィ
ン付き熱交換管（１）を例えば蒸発器として使用した場
合、内部を通過する冷媒液の蒸発が従来の平滑な内面を
有する熱交換管に比べて非常に促進され、蒸発器として
の熱効率が向上する。しかもこの発明の方法はぎわめて
作業容易であり、フィン（２）付き熱交換管（１）の製
造を能率良く行ない得るという効果を奏する。Effects of the Invention As described above, the method for manufacturing a finned heat exchange tube according to the present invention has the parallel grooves (3) extending in the length direction on the inner surface and plate-shaped fins (3) on at least one side of the outer surface. 1
2) Heat exchange tube material made of aluminum extrusion profile (1)
A process of forming a large number of cuts (13) in the width direction on the plate-shaped fins (12) of 1), and forming the heat exchange tube material (11) with fins (2) into a spiral shape by binding the entire body. According to the method of this invention, the method consists of a step of bending.
By spirally bending the finned heat exchange material (11), twist is applied to the grooves (3) previously provided on the inner surface of the tube material (11), so that the finned heat exchange tube (1) For example, when used as an evaporator, the evaporation of the refrigerant liquid passing through the tube is greatly accelerated compared to conventional heat exchange tubes having smooth inner surfaces, improving the thermal efficiency of the evaporator. Furthermore, the method of the present invention is extremely easy to work with, and has the effect of efficiently producing the heat exchange tube (1) with fins (2).

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明の方法によりつくられたフィン付き熱
交換管の一部切欠き部分拡大正面図、第２図は同概略全
体斜視図、第３図はフィン付き熱交換管素材の部分拡大
斜視図、第４図は同管素材のフィン部分に多数の切り目
を入れた状態の斜視図、第５図は従来例を示すフィン付
き熱交換管の斜視図である。 （１）・・・熱交換管、（２）・・・フィン、（３）・
・・凹状、（１１）・・・熱交換管素材、（１２）・・
・プレート状フィン。 以上Fig. 1 is an enlarged partially cutaway front view of a finned heat exchange tube made by the method of the present invention, Fig. 2 is a schematic overall perspective view of the same, and Fig. 3 is a partially enlarged view of the finned heat exchange tube material. FIG. 4 is a perspective view showing a state in which a number of cuts have been made in the fin portion of the tube material, and FIG. 5 is a perspective view of a conventional finned heat exchange tube. (1)...Heat exchange tube, (2)...Fin, (3)...
...Concave shape, (11)...Heat exchange tube material, (12)...
・Plate-shaped fin. that's all

Claims (1)

【特許請求の範囲】[Claims] 内面に長さ方向に伸びる並列状の凹条（３）を有しかつ
外面の少なくとも一側にプレート状フィン（１２）を有
するアルミニウム押出型材製熱交換管素材（１１）のプ
レート状フィン（１２）に、幅方向の多数の切り目（１
３）を設ける工程と、フイン（２）付き熱交換管素材（
１１）を、全体として螺旋状に屈曲せしめる工程とより
なる、フィン付き熱交換管の製造法。Plate-shaped fins (12) of a heat exchange tube material (11) made of an extruded aluminum profile having parallel grooves (3) extending longitudinally on the inner surface and plate-shaped fins (12) on at least one side of the outer surface. ), many cuts in the width direction (1
3) and the heat exchange tube material with fins (2) (
11) A method for manufacturing a finned heat exchange tube, which comprises the step of bending the entire tube in a spiral shape.
JP25426285A 1985-11-12 1985-11-12 Manufacture of heat exchanger tube with fin Pending JPS62114736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25426285A JPS62114736A (en) 1985-11-12 1985-11-12 Manufacture of heat exchanger tube with fin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25426285A JPS62114736A (en) 1985-11-12 1985-11-12 Manufacture of heat exchanger tube with fin

Publications (1)

Publication Number Publication Date
JPS62114736A true JPS62114736A (en) 1987-05-26

Family

ID=17262530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25426285A Pending JPS62114736A (en) 1985-11-12 1985-11-12 Manufacture of heat exchanger tube with fin

Country Status (1)

Country Link
JP (1) JPS62114736A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103253468A (en) * 2013-05-31 2013-08-21 靖江市春意空调制冷设备有限公司 Oil tank for crude oil exploration with built-in stainless steel spiral pipes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140863A (en) * 1975-05-30 1976-12-04 Hitachi Ltd Apparatus for producing heat transferring tube
JPS5547319A (en) * 1978-09-29 1980-04-03 Nippon Steel Corp Manufacture of thin steel sheet according to ultra short time annealing
JPS5647464A (en) * 1979-09-27 1981-04-30 Rengo Co Ltd Apparatus for continuous paste formation
JPS5897445A (en) * 1981-12-07 1983-06-09 Sanyo Electric Co Ltd Manufacture of inside-grooved tube type heat exchanger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140863A (en) * 1975-05-30 1976-12-04 Hitachi Ltd Apparatus for producing heat transferring tube
JPS5547319A (en) * 1978-09-29 1980-04-03 Nippon Steel Corp Manufacture of thin steel sheet according to ultra short time annealing
JPS5647464A (en) * 1979-09-27 1981-04-30 Rengo Co Ltd Apparatus for continuous paste formation
JPS5897445A (en) * 1981-12-07 1983-06-09 Sanyo Electric Co Ltd Manufacture of inside-grooved tube type heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103253468A (en) * 2013-05-31 2013-08-21 靖江市春意空调制冷设备有限公司 Oil tank for crude oil exploration with built-in stainless steel spiral pipes

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