JPS60108113A - Manufacture of flat tube for heat exchanger - Google Patents
Manufacture of flat tube for heat exchangerInfo
- Publication number
- JPS60108113A JPS60108113A JP21504783A JP21504783A JPS60108113A JP S60108113 A JPS60108113 A JP S60108113A JP 21504783 A JP21504783 A JP 21504783A JP 21504783 A JP21504783 A JP 21504783A JP S60108113 A JPS60108113 A JP S60108113A
- Authority
- JP
- Japan
- Prior art keywords
- flat tube
- heat exchanger
- tube
- projections
- flow channels
- 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
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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/156—Making tubes with wall irregularities
- B21C37/158—Protrusions, e.g. dimples
-
- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
Abstract
Description
【発明の詳細な説明】
（技術分野）
この文明は、暖房機、冷房機、各種放熱機等の熱交換器
に組込み、内部を流れる流体と外部を流れる流体との熱
交換を行なわせる扁平管を製造する方ｌノ、に関する。[Detailed Description of the Invention] (Technical Field) This civilization is a flat tube that is incorporated into heat exchangers such as heaters, air conditioners, and various radiators to exchange heat between the fluid flowing inside and the fluid flowing outside. Concerning the person who manufactures the product.
（発明の背景）
各種熱交換器に組込まれて使用される伝熱管の１種とし
て、第１図に示すように内Ｓ＋＋を仕切壁１．１により
複数の流路２．２に仕切った扁平管３が知られている。(Background of the Invention) As a type of heat exchanger tube used in various heat exchangers, a flat tube with an inner S++ partitioned into a plurality of flow channels 2.2 by a partition wall 1.1 is used as shown in FIG. Tube 3 is known.
このような扁平管３を例えば暖房機に組込んで使用する
場合には、各流路２．２に温水を通すことにより扁平管
３を昇温させ、この扁平管３の周囲を流通する空気を加
温する。When such a flat tube 3 is used by incorporating it into a heater, for example, the temperature of the flat tube 3 is raised by passing hot water through each flow path 2.2, and the air flowing around the flat tube 3 is heated. Warm up.
ところが、一般に扁平管３内に送り込む温水その他の流
体はあまり量が多くなく、従って流速も小さくて層流状
態で流れるため、流路１の内面に伝熱不良の境界層が形
成され易く、扁平管３の内外を流れる流体間の熱交換が
必ずしも十分に行なわれない。However, in general, the amount of hot water and other fluids sent into the flat tube 3 is not very large, and therefore the flow velocity is low and flows in a laminar flow state, so a boundary layer with poor heat transfer is likely to be formed on the inner surface of the flow path 1, and the flat tube 3 Heat exchange between the fluid flowing inside and outside the tube 3 is not always sufficient.
（発明の目的）
本発明は上述のような不都合を解消するため、内部を流
通する流体の量が少ない場合でもこの流、体との間の熱
交換が十分子行なわれる扁平管を効率良く造ることので
きる熱交換器用扁平管の製造方法を提供することを目的
としている。(Object of the Invention) In order to solve the above-mentioned disadvantages, the present invention efficiently creates a flat tube in which heat exchange between the flow and the body is carried out efficiently even when the amount of fluid flowing inside is small. The purpose of the present invention is to provide a method for manufacturing flat tubes for heat exchangers that can be used in heat exchangers.
（発明の構成）
本発明の熱交換器用扁平管の製造方法は、まずＦＳＩ図
に示すように内部を仕切壁１、ｌによって複数の流路２
．２に仕切った扁平管３を、アルミニウムの一体押出成
型法により造った後、ストノンチャー（ｓｔｒｅｔｃｈ
ｅｒ ）によって曲がり等押出成型時に生じた歪みを矯
正し、その後表面処理をしない間に、表面に突起を設は
互いに逆方向に回転する１対のローラの間を通して仕切
壁１、ｌを外れた部分の外面を凹ませて、各流路２．２
の内面に多数の突起を有する熱交換器用扁平管とするも
のである。(Structure of the Invention) In the method of manufacturing a flat tube for a heat exchanger of the present invention, first, as shown in the FSI diagram, the inside is divided into a plurality of flow channels 2 by partition walls 1 and 1.
．． A flat tube 3 partitioned into 2 is made by integral extrusion of aluminum, and then stretched.
er) to correct distortions caused during extrusion molding, such as bending, and then, while no surface treatment was performed, protrusions were formed on the surface and removed from the partition wall 1 by passing it between a pair of rollers rotating in opposite directions. Each channel 2.2 is formed by recessing the outer surface of the part.
This is a flat tube for a heat exchanger that has a large number of protrusions on its inner surface.
図面により更に詳しく説明すると、アルミニウムを一体
押出成型することによりイＩＩられた第１図に示すよう
な形状の扁平毛３はストレッチャーにより１ｊｉｌ端を
掴んで引張ることにより押出成型時に生じた歪みを矯正
してＪ′！直にする。真直となった扁平管３は、次いで
第２図に示したように表面に多数の突起４．４を有する
１対のローラ５．５の間を通過させる。両ローラ５．５
の突起４．４を除いた部分の間隔りは、扁平／１１３の
厚さＴとほぼ同じかやや広い（Ｄ≧Ｔ）程度とする。ま
た、各突起４．４を形成する位置は、ローラ５．５の間
に扁平管３を挿入した場合に、この突起４．４が扁平管
３の仕切壁ｌ、■から外れた流路２．２の部分に当るよ
うにしている。To explain in more detail with reference to the drawings, the flat bristles 3 having the shape shown in FIG. Correct it J'! Make it straight. The straightened flat tube 3 is then passed between a pair of rollers 5.5 having a number of protrusions 4.4 on their surfaces, as shown in FIG. Both rollers 5.5
The spacing between the parts excluding the protrusion 4.4 is approximately the same as or slightly wider than the thickness T of the flat/113 (D≧T). Further, the positions at which each protrusion 4.4 is formed are such that when the flat tube 3 is inserted between the rollers 5.5, the protrusion 4.4 is located in the flow path 2 where the protrusion 4.4 is separated from the partition walls l and (2) of the flat tube 3. I am trying to match the .2 part.
各ローラ５．５は上述のように構成されるため、第１図
に示したように一体押出成型法れ歪みを矯正された扁平
管３をこのローラ５，５の間を通過させると、この扁平
管３の外側面に第３〜４図に示したように多数の四部６
．６が形成される。この凹部６．６は各流路２．２の内
側から見た場合、多数の突起となってこの流路２．２内
を通過する流体の流れを撹乱する作用をする。なお、ア
ルミニウム製の扁平管３の表面に防ｆ＋！被膜等の表面
処理を施す場合は、ローラ５．５による凹部６．６の形
成は、この表面処理前に行なう。Since each roller 5.5 is constructed as described above, when the flat tube 3, which has been integrally extruded and whose curling distortion has been corrected, is passed between the rollers 5, 5, as shown in FIG. As shown in FIGS. 3 and 4, there are many four parts 6 on the outer surface of the flat tube 3.
．． 6 is formed. When viewed from inside each channel 2.2, the recesses 6.6 act as a number of protrusions to disrupt the flow of fluid passing through the channels 2.2. In addition, the surface of the aluminum flat tube 3 has an anti-f+! When a surface treatment such as a coating is applied, the formation of the recess 6.6 by the roller 5.5 is performed before this surface treatment.
、これは表面処理によって表面の硬度が増すため四部６
，６の加工が難しくなること、表面処理後に凹部６．６
を加工するとせっかく形成した防蝕被膜等を破壊するお
それがあるためである。, this is because the hardness of the surface increases due to surface treatment.
, 6 becomes difficult to process, and recesses 6.6 after surface treatment.
This is because there is a risk of destroying the corrosion-resistant coating that has been formed.
このようにして本発明の方法により造られた熱交換器用
扁平管の内側に流体を送ると、この流体は流路２．２の
表面に突出した多数の突起（外面から見た場合凹部６．
６）によってＪＱれ方向を頻繁に変えられる。このため
、各流路２．２の表面に境界層が形成され難く、流体と
伝熱管との間の伝熱が良好に行なわれる。When fluid is sent inside the flat tube for a heat exchanger manufactured by the method of the present invention in this manner, the fluid flows through a large number of projections (recesses 6.2 when viewed from the outside) protruding from the surface of the flow path 2.2.
6) allows the JQ deflection direction to be changed frequently. Therefore, a boundary layer is hardly formed on the surface of each flow path 2.2, and heat transfer between the fluid and the heat exchanger tubes is performed satisfactorily.
（発明の効果）
本発明の熱交換器用扁平管の製造方法゛は以」二に述べ
た通り構成されるため、内外を流れる流体間の熱交換を
効率良く行なえる熱交換器用扁平管を能率良く安価に造
ることができる。(Effects of the Invention) The method for manufacturing a flat tube for a heat exchanger according to the present invention is configured as described in 2 below, so that the flat tube for a heat exchanger that can efficiently exchange heat between the fluid flowing inside and outside can be efficiently manufactured. It can be made well and cheaply.
ｆ３１図は押出成智ノ直後の扁平管の端部斜視図、第２
図は四部形成用のローラを示す斜視図、第３１；仕切壁
、２ 流路、３：扁平管、４・突起、５：ローラ ６：
凹部。
４、′ｆ許出出願人 不二サッシ株式会社代 理 人
小山欽造（ほか１名）
第４図 第２図
１Figure f31 is a perspective view of the end of the flat tube immediately after extrusion, the second
The figure is a perspective view showing a roller for forming four parts, No. 31: Partition wall, 2: Channel, 3: Flat tube, 4: Protrusion, 5: Roller 6:
recess. 4,'f Permission applicant: Fujisash Co., Ltd. Agent
Kinzo Koyama (and 1 other person) Figure 4 Figure 2 1
Claims (1)
Ｊ壁によって複数の流路に仕！、！Ｊつた扁平管を造り
、この扁平省の押出成型吟の歪みを矯正した後、外周面
に多数の突起を形成した１対のローラの間を通過させて
扁・Ｉｌ管の外側面の仕切壁を外れた部分に多数の四部
を形成する熱交換器用扁平管の製造方法。The interior is finished by integrally extruding aluminum.
Create multiple flow paths using the J wall! ,! After making a J-shaped flat tube and correcting the distortion of this flat extrusion molding, it is passed between a pair of rollers with many protrusions formed on the outer circumferential surface to form a partition wall on the outer surface of the flat Il tube. A method for manufacturing a flat tube for a heat exchanger, in which a large number of four parts are formed in the removed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21504783A JPS60108113A (en) | 1983-11-17 | 1983-11-17 | Manufacture of flat tube for heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21504783A JPS60108113A (en) | 1983-11-17 | 1983-11-17 | Manufacture of flat tube for heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60108113A true JPS60108113A (en) | 1985-06-13 |
Family
ID=16665874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21504783A Pending JPS60108113A (en) | 1983-11-17 | 1983-11-17 | Manufacture of flat tube for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108113A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990057634A (en) * | 1997-12-30 | 1999-07-15 | 신영주 | Heat exchanger tube manufacturing method |
| CN106334740A (en) * | 2016-08-19 | 2017-01-18 | 西北有色金属研究院 | Device for machining concave structures on surfaces of small-diameter thin-wall metal pipes |
| CN107159813A (en) * | 2017-07-26 | 2017-09-15 | 西南石油大学 | A kind of punching type industrial high-efficient pipe workbench |
| CN107282737A (en) * | 2017-07-26 | 2017-10-24 | 西南石油大学 | A kind of alternating expression fourth born of the same parents heat-transfer pipe extrusion forming device |
| CN107398513A (en) * | 2017-07-26 | 2017-11-28 | 西南石油大学 | A kind of mechanical fourth born of the same parents' heat-transfer pipe extrusion forming device |
| JP2018124040A (en) * | 2017-02-03 | 2018-08-09 | 株式会社ガスター | Heat radiation unit and heating system |
| JP2018124041A (en) * | 2017-02-03 | 2018-08-09 | 株式会社ガスター | Bath hot water heating system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236952A (en) * | 1975-09-18 | 1977-03-22 | Sharp Corp | Electronic clock with computer |
| JPS55133818A (en) * | 1979-03-31 | 1980-10-18 | Sumitomo Light Metal Ind Ltd | Manufacture of aluminum shape tube |
-
1983
- 1983-11-17 JP JP21504783A patent/JPS60108113A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236952A (en) * | 1975-09-18 | 1977-03-22 | Sharp Corp | Electronic clock with computer |
| JPS55133818A (en) * | 1979-03-31 | 1980-10-18 | Sumitomo Light Metal Ind Ltd | Manufacture of aluminum shape tube |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990057634A (en) * | 1997-12-30 | 1999-07-15 | 신영주 | Heat exchanger tube manufacturing method |
| CN106334740A (en) * | 2016-08-19 | 2017-01-18 | 西北有色金属研究院 | Device for machining concave structures on surfaces of small-diameter thin-wall metal pipes |
| JP2018124040A (en) * | 2017-02-03 | 2018-08-09 | 株式会社ガスター | Heat radiation unit and heating system |
| JP2018124041A (en) * | 2017-02-03 | 2018-08-09 | 株式会社ガスター | Bath hot water heating system |
| CN107159813A (en) * | 2017-07-26 | 2017-09-15 | 西南石油大学 | A kind of punching type industrial high-efficient pipe workbench |
| CN107282737A (en) * | 2017-07-26 | 2017-10-24 | 西南石油大学 | A kind of alternating expression fourth born of the same parents heat-transfer pipe extrusion forming device |
| CN107398513A (en) * | 2017-07-26 | 2017-11-28 | 西南石油大学 | A kind of mechanical fourth born of the same parents' heat-transfer pipe extrusion forming device |
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