JPS58164995A - Heat exchanger and manufacture thereof - Google Patents
Heat exchanger and manufacture thereofInfo
- Publication number
- JPS58164995A JPS58164995A JP4840082A JP4840082A JPS58164995A JP S58164995 A JPS58164995 A JP S58164995A JP 4840082 A JP4840082 A JP 4840082A JP 4840082 A JP4840082 A JP 4840082A JP S58164995 A JPS58164995 A JP S58164995A
- Authority
- JP
- Japan
- Prior art keywords
- flat tube
- flat
- heat exchanger
- partition wall
- bent
- 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
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
-
- 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
-
- 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
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、偏平管とコルゲートフィンとを交互に平行に
槓ノーシ、この偏平管に対応する飲会孔をMする管板金
−σ記偏千′eの両端に仲人し、ろう付によって偏平′
ぎ、コルゲートフィン、宮似葡一体に接合してなる熱交
換器コアに用いる偏平管及びその熱交換器としての組立
方法に関し、特に1lIIlf管を管仮に容易且つ確実
に接合しうるように図ったものに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that flat tubes and corrugated fins are alternately laid out in parallel, and drinking holes corresponding to the flat tubes are formed at both ends of the tube sheet metal. flattened by brazing
Regarding the flat tubes used in the heat exchanger core formed by joining the corrugated fins and the Miyani fins together, and the method of assembling the same as a heat exchanger, in particular, we aimed to make it possible to easily and reliably join the 1lIIlf tubes. related to things.
上記ろう付作業においては、管板の嵌合孔と偏平管の外
周との間隙が太きいと、ろうが十分周わらず、接合不良
になりやすい。 しかし−刃間隙を小さくしようとすれ
ば、偏平管、嵌合孔、コルゲートフィンの成形加工は公
差の敢しい尚度な加工が要求されると共に、看板に偏平
管を挿入する除にヤスリ作業等の多くの手間を要する。In the above-mentioned brazing operation, if the gap between the fitting hole of the tube sheet and the outer periphery of the flat tube is large, the solder will not wrap around the tube sufficiently, resulting in poor bonding. However, in order to reduce the gap between the blades, the forming process of the flat tube, fitting hole, and corrugated fin requires strict processing with strict tolerances, and in addition to inserting the flat tube into the signboard, filing work is required. It takes a lot of effort.
一方、円管あるいは多穴でない偏平管では、簡単な工共
によって管仮に挿入された管端部を拡管して管板の嵌合
孔と管外周との間隙を小さくすることが出来るが、伝熱
性能を良くするために内部フィンとしての隔壁を設けた
従来の多穴偏平管では、隅壁が袖強リプの役員会来し、
偏平管を看板に挿入した後に間隙を小さくしようとして
も各局には偏平′ばが拡大されず、接汁不艮となる欠点
があった。On the other hand, for circular pipes or flat pipes that do not have many holes, it is possible to expand the temporarily inserted end of the pipe by simple engineering to reduce the gap between the fitting hole in the tube plate and the outer circumference of the pipe. In conventional multi-hole flat tubes that have partition walls as internal fins to improve thermal performance, the corner walls have a board with strong ribs.
Even if an attempt was made to reduce the gap after inserting the flat tube into the signboard, the flat tube would not be enlarged at each station, resulting in poor water contact.
また多穴偏平管でその伝熱性能を更に向上させるために
は、隔壁と内部流体との接触面積を広くする必要がある
が、そのため従来の多穴偏平管では、直線状の隔壁から
枝状の隔壁を突出させる等隔壁の形状を複雑化させてい
るため、製造技術上の困難性を伴い、押出用の型も高価
なものが必要であった。In addition, in order to further improve the heat transfer performance of multi-hole flat tubes, it is necessary to widen the contact area between the partition walls and the internal fluid. Because the shape of the partition walls that make the partition walls protrude is complicated, manufacturing techniques are difficult and expensive extrusion molds are required.
本発明はこのような点に鑑み案出されたものであり、極
めて簡単な作業によって拡管され、且つ管板に対して確
実且つ強固な按台状悪を得ることのできる多穴偏平板を
用いた熱交換器及びその製造方法の提供を目的とし、要
するに偏平管の内部フィンとなる隔壁の全便を開平′g
の同短径よシ民く、例えばくの字状をなす隔檄t−設け
fc多穴−平管を用い、この偏平管を一#仮の嵌合孔に
仲人した俊、仲人された管端部の折曲した隔壁を挟圧す
る豊して、その部分の隔壁をはは@急状に沖rよすこと
によシ隔壁に連らなる偏平管の外壁を外世lへ膨出させ
、管板との間隙を小さくシ、これによって次いで行うろ
う付作業を確実且つ堅牢なものとなすと共に熱交換率の
高い熱交換器及びその製造方法を提供するものである。The present invention has been devised in view of these points, and uses a multi-hole flat plate that can be expanded with extremely simple operations and that can provide a reliable and strong rest against the tube sheet. In short, we aim to provide a heat exchanger and a method for manufacturing the same, in short, we will open and flatten the entire partition wall that becomes the internal fins of the flat tube.
For example, if you use a multi-hole flat tube with a double-shaped spacer, and insert this flat tube into a temporary fitting hole, By squeezing the bent bulkhead at the end, the bulkhead in that area is suddenly moved outward, causing the outer wall of the flat tube connected to the bulkhead to bulge outward. The present invention provides a heat exchanger that has a small gap with the tube sheet, thereby making the subsequent brazing work reliable and robust, and has a high heat exchange rate, and a method for manufacturing the same.
次いで添付した図面を参考として、本発明を具体化した
実施例について説明する。 ここに第1図は、本発明の
一実施例である熱交換器に用いることのできる多穴偏平
管の一例を示す同偏平管の正面図、第2図は、同偏平管
の拡開前後の状態を示す拡大正面図、第3図は、同偏平
・Uを用いた熱交換器コアの分解斜視図、第4図は、同
熱交換器の一部破断腑祝図、第5図(a)〜(f)は偏
平管の変形例を示す正面図である。Next, embodiments embodying the present invention will be described with reference to the attached drawings. Here, FIG. 1 is a front view of a multi-hole flat tube that can be used in a heat exchanger according to an embodiment of the present invention, and FIG. 2 is a front view of the same flat tube before and after expansion. Fig. 3 is an exploded perspective view of the heat exchanger core using the flat U type, Fig. 4 is a partially cutaway view of the heat exchanger, and Fig. 5 a) to (f) are front views showing modified examples of the flat tube.
本発明に用いる多穴偏平管(1)は、第1図に示すよう
に、組立てた時コルゲートフィンと当接する側壁(3)
及び(4)をその間に挾んだ断面くの字状の隔壁(5)
、(5)、・・・で連結したもので、側m 131と(
4)との間の偏平状の空間が隔壁(5)、(5)、・・
・に工って平行な流路+61、i61 ・・・に仕切
られた#4逍會なし、紙間。As shown in FIG. 1, the multi-hole flat tube (1) used in the present invention has side walls (3) that come into contact with corrugated fins when assembled.
A bulkhead (5) with a dogleg-shaped cross section and (4) sandwiched therebetween.
, (5), ... connected with side m 131 and (
4) is the flat space between the partition walls (5), (5),...
・Parallel flow path +61, i61, etc. #4 No meeting, paper gap.
に世直の方向に長く連続するものでおり、一般にアルミ
ニュムやアルミニュム付釡の押出しによシ成形さnる。It is a long continuous piece in the vertical direction, and is generally formed by extrusion of aluminum or an aluminum kettle.
隔壁(5)の形状は、くの字の仙、への字、Sの字、
その他蛇腹状に多段に屈曲したもの等神々のものが考え
られるが、要するにその側面(7)に旧って測った全長
(第1図示の例においては折曲点(8)の前後の長さく
el)と(e2)とを加算した長さ)が、該偏平管(5
)の同短径υ(igll壁+31、(4)の内側面の距
離)より長くなるように偏平管内長径方向に折曲した形
状であれば良く、更にその側面から枝状にフィンが突出
した構造であってもよい。、そしてかかる隔壁の折曲方
向は、第1図示のように偏平管内長径方向の中心部を境
として左右に対称な方向に曲げることが望ましい。 こ
れは下記する拡管作業の際の歪が少ないためである。
第5図にこのような種々の隔壁の形状を例示する。 (
9)は伝熱効率を高めるために側壁又は隔壁から突出さ
せたフィンである。The shape of the bulkhead (5) is the shape of the letter S, the letter S, and the letter S.
Other divine objects such as bellows-shaped bends in multiple stages can be considered, but in short, the total length measured in the past (in the example shown in the first diagram, the length before and after the bending point (8)) is attached to the side (7). el) and (e2)) is the flat tube (5
) The shape should be bent in the longitudinal direction of the flat tube so that it is longer than the short diameter υ (igll wall + 31, distance of the inner surface of (4)), and furthermore, the fin should protrude in a branch shape from the side surface. It may be a structure. The direction of bending of the partition wall is preferably symmetrical to the left and right with the center in the longitudinal direction of the flat tube as a boundary, as shown in the first figure. This is because there is less distortion during the pipe expansion work described below.
FIG. 5 illustrates various shapes of such partition walls. (
9) is a fin protruding from the side wall or partition wall to increase heat transfer efficiency.
このような偏平管は、第2図に示すように火線で示した
折曲した隔壁(5)をペンチ尋で破巌で示す如く直載又
は直線に近い状態に伸はすと、[憾(3)、(4)が隔
壁におされて破厭で不すように側方へ影出し、側壁(3
)と(4)との同短径←)が吋のように拡けられる。
本発明の熱交換器製造方法は、このような折曲し九隔壁
をもつ偏平管の特殊な作用に着目したものであシ、第3
図に示す如くまずコルゲートフィンa1と上記折曲した
隔壁を有する多穴偏平管(1)とを交互に平行に積層し
た後、管板(lυ、011を偏平管+11、+11、・
・・の両端部に押描て、各管端を管板Qll、 uυの
嵌合孔tea、+121、・・・に挿入する。 しかる
後に管板u9に差込まれた偏平管の端管部分の隔lit
、15)を第2図に示す如くベンチ等によって屈曲が伸
される方向へ折シ曲げる。 この作業によシ前記の通り
偏平管が一方へ膨出し、管板の嵌合孔との時の間隙が狭
くなる。 従ってこのような隔壁の伸ばし作業は、間隙
の広い部分についてのみ行ってもよく、また管端部につ
いてのみ行えは足9る。、(13はコルゲートフィン(
111)と偏平管(11よシ成るコアd4の側部を覆う
だめの側板で、この側板及び流体の流出入部に設ける第
4図のようなヘッダ(151を#捩り[9によシ組付け
た後全体を炉中へ入れてろう付を行う。In such a flat tube, when the bent partition wall (5) shown by the caustic line in Fig. 2 is placed directly or stretched into a nearly straight state as shown by the broken part with pliers, the 3) and (4) are placed on the partition wall and cast shadows to the sides as if they were broken and look like they are broken, and the side wall (3)
) and (4) with the same short axis ←) are expanded like ←).
The heat exchanger manufacturing method of the present invention focuses on the special effect of such a flat tube having nine bent partitions.
As shown in the figure, first, the corrugated fins a1 and the multi-hole flat tubes (1) having the above-mentioned bent partition walls are laminated in parallel alternately, and then the tube plates (lυ, 011) are stacked on the flat tubes +11, +11, .
... and insert each tube end into the fitting hole tea, +121, ... of the tube plate Qll, uυ. After that, the gap between the end tube part of the flat tube inserted into the tube plate U9
, 15) are bent on a bench or the like in the direction in which they are bent and stretched as shown in FIG. As a result of this operation, the flat tube bulges to one side as described above, and the gap between it and the fitting hole of the tube plate becomes narrower. Therefore, such a partition wall stretching operation may be carried out only at the wide gap portion, and may not be carried out only at the tube end. , (13 is corrugated fin (
111) and the flat tube (11), which is a side plate that covers the side of the core d4, which is provided at the side plate and the fluid inlet/outlet part. After that, the whole thing is put into the furnace and brazed.
上記偏平管の拡管は、管板への偏平・Uの仲人直後に行
ってもよいが、コアをろう肘用治具に組付けた段階で行
ってもよい。The above-mentioned expansion of the flat tube may be performed immediately after the flattening/U is formed on the tube plate, but it may also be performed at the stage when the core is assembled to the wax elbow jig.
本発明は以上述べた如く、金JI14製偏平管内に設け
た複数の隔壁によシ偏平管内を複数の平行流路に分割し
た多穴偏平管とコルゲートフィンとを交互に平行に積層
してなる性交換器において、前記偏平管の隔壁を偏平管
の^長径方向に折曲させ、該隔壁の偏平°d内短径方向
の長さを当該偏平管内短径より長くなしたことを特徴と
する熱交換器及び上記偏平管の隔壁を伸はすことにより
拡管する熱交換器の製造方法であるから、組立現場にお
いて極めて簡単に多穴偏平管を拡甘し、確実に堅牢な熱
交換器を得ることができ、しかもFfh壁の折曲によっ
て隔壁と管内流体との接触面積が広が如伝熱効¥の極め
て良好な熱交換器全得るものである。As described above, the present invention is made by laminating alternately parallel multi-hole flat tubes and corrugated fins in which the inside of the flat tube is divided into a plurality of parallel flow paths by a plurality of partition walls provided in the flat tube made of gold JI14. The sex exchanger is characterized in that the partition wall of the flat tube is bent in the long axis direction of the flat tube, and the length of the partition wall in the inside short axis direction of the flat tube is longer than the inside short axis of the flat tube. Since this is a manufacturing method for heat exchangers and heat exchangers in which the tubes are expanded by stretching the partition walls of the flat tubes, it is extremely easy to expand the multi-hole flat tubes at the assembly site, and it is possible to reliably produce a robust heat exchanger. Moreover, the bending of the Ffh wall increases the contact area between the partition wall and the fluid in the pipe, thereby providing a heat exchanger with extremely good heat transfer efficiency.
第1図は、+:究明の一実施例でめる熱交戻器に用いる
ことのできる多穴偏平°gの一例を示す同偏平管の正面
図、5g2図は、同偏平賃の拡開rjtl佼の状IPJ
Aを示す拡大正面図、第3図は、同温平管ケ用いた熱交
換器コアの分ys斜視図、第4図は、同熱交換器の一部
破断斜視図、第5図は、上記偏平管の種々の変形例を示
す正面図である。
(符号の説明)、
1・・・多穴偏平管、 5・・・隔壁、 6・・・流
路、10・・・コルゲートフィン、11・・・管板、1
2・・・嵌合孔、 13−′側板、 14・・・コア、
L・・・偏平管内短径。
出」 人 株式会社 神戸製鋼次代i:門 人
弁理士 本庄武勇じFigure 1 is a front view of a flat tube showing an example of a multi-hole flat tube that can be used in a heat exchanger that can be used in a heat exchanger according to an embodiment of +: investigation, and Figure 5g2 is an enlarged view of the same flat tube. rjtl case IPJ
FIG. 3 is a perspective view of a heat exchanger core using isothermal flat tubes, FIG. 4 is a partially cutaway perspective view of the same heat exchanger, and FIG. 5 is an enlarged front view showing A. It is a front view which shows various modification examples of the said flat tube. (Explanation of symbols) 1... Multi-hole flat tube, 5... Partition wall, 6... Channel, 10... Corrugated fin, 11... Tube plate, 1
2... Fitting hole, 13-' side plate, 14... Core,
L: Inner short diameter of the flat tube. Person Kobe Steel Next Generation i: Gate Patent Attorney Takeji Honjo
Claims (1)
を複数の平行流路に分割した多穴偏平管とコルゲートフ
ィンとを交互に平行に積層してなる熱交換器において、
前記偏平管の隔壁を偏平管の内*径方向に折曲させ、該
隔壁の偏平管内短径方向の長さを当該偏平管内短径より
長くなしたことを特徴とする熱交換器。 2、各隔壁の折曲方向が偏平管内長径方向の中心部を境
として対称となっている特許請求の範囲第1項に記載し
た熱交換器。 3、金属製偏平管内に設けた複数の隔壁により偏平管内
を複数の平行流路に分割した多穴偏平管であって、前記
隔壁を偏平管内長径方向に折曲させ、該隔壁の偏平管内
短径方向の長さを当該偏平管内短径より長くなした多穴
偏平管と、コルゲートフィンとを交互に積層し、最外層
を側板で積った後、上記偏平−V端部をU板に穿った嵌
合孔に仲人すると共に、その俊上紀1v11櫨の!肩部
分の新聞部を伸ばすことにより偏平管を七〇内短径方向
に拡′uして該拡d部を嵌合孔に密層せしめ、その後ろ
う付によってコア全体f依着することft籍徴とする熱
交換器の装造方法。[Scope of Claims] 1. A heat exchanger in which corrugated fins and multi-hole flat tubes are alternately stacked in parallel, with the flat tube divided into a plurality of parallel flow paths by a plurality of partition walls provided in the flat metal tube. In,
A heat exchanger characterized in that the partition wall of the flat tube is bent in the inner diameter direction of the flat tube, and the length of the partition wall in the inner minor axis direction of the flat tube is longer than the inner minor axis of the flat tube. 2. The heat exchanger according to claim 1, wherein the bending directions of each partition wall are symmetrical with respect to the center in the longitudinal direction of the flat tube. 3. A multi-hole flat tube in which the inside of the flat tube is divided into a plurality of parallel flow paths by a plurality of partition walls provided in the metal flat tube, the partition walls being bent in the long diameter direction of the inside of the flat tube, and the partition walls having a short length inside the flat tube. Multi-hole flat tubes whose radial length is longer than the inner short diameter of the flat tube and corrugated fins are alternately stacked, and after stacking the outermost layer with a side plate, the flat-V end is attached to a U plate. In addition to matching the drilled mating hole, the Toshijoki 1v11 Haji! By stretching the newspaper part of the shoulder part, the flat tube is expanded in the inner short diameter direction, and the expanded part is densely layered in the fitting hole, and then the entire core is attached by brazing. How to install a heat exchanger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4840082A JPS58164995A (en) | 1982-03-25 | 1982-03-25 | Heat exchanger and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4840082A JPS58164995A (en) | 1982-03-25 | 1982-03-25 | Heat exchanger and manufacture thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58164995A true JPS58164995A (en) | 1983-09-29 |
Family
ID=12802248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4840082A Pending JPS58164995A (en) | 1982-03-25 | 1982-03-25 | Heat exchanger and manufacture thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58164995A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001031274A1 (en) * | 1999-10-27 | 2001-05-03 | Brazeway, Inc. | Micro-multiport tubing and method for making same |
WO2003040642A1 (en) * | 2001-11-09 | 2003-05-15 | Gac Corporation | Heat exchanger and method for manufacturing the same |
KR100469769B1 (en) * | 2001-02-27 | 2005-02-02 | 한국델파이주식회사 | Tube of Condensor for Automobile |
FR2863349A1 (en) * | 2003-12-05 | 2005-06-10 | Valeo Climatisation | Flat tube for use in motor vehicle, has parallel lower channels that are connected on both sides of transversal partitions, and bound by walls of tube and separated from each other by partitions |
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JPWO2006025465A1 (en) * | 2004-08-31 | 2008-05-08 | Gac株式会社 | Flat multi-hole tube and heat exchanger |
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JP2008267782A (en) * | 2007-03-26 | 2008-11-06 | Calsonic Kansei Corp | Heat exchanger and method of manufacturing heat exchanger |
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WO2015041065A1 (en) * | 2013-09-19 | 2015-03-26 | 三菱重工オートモーティブサーマルシステムズ株式会社 | Flat heat-exchanging tube, heat medium heating device using same, and vehicular air-conditioning device |
WO2017208419A1 (en) * | 2016-06-02 | 2017-12-07 | 三菱電機株式会社 | Fin-tube type heat exchanger, heat pump apparatus provided with fin-tube type heat exchanger, and method for manufacturing fin-tube type heat exchanger |
JPWO2017208419A1 (en) * | 2016-06-02 | 2019-01-17 | 三菱電機株式会社 | Fin tube type heat exchanger and heat pump device provided with the fin tube type heat exchanger |
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