JPS6026292A - Crossfin type heat exchanger - Google Patents
Crossfin type heat exchangerInfo
- Publication number
- JPS6026292A JPS6026292A JP13319283A JP13319283A JPS6026292A JP S6026292 A JPS6026292 A JP S6026292A JP 13319283 A JP13319283 A JP 13319283A JP 13319283 A JP13319283 A JP 13319283A JP S6026292 A JPS6026292 A JP S6026292A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- streamline
- flow
- fins
- louver
- 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
- 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
- F28F1/24—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 transversely
- F28F1/32—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 transversely the means having portions engaging further tubular elements
- F28F1/325—Fins with openings
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
Description
【発明の詳細な説明】
本発明は、多数のフィンを並設し、このフィンに多数の
伝熱管を貫通密着させたクロスフィン形熱交換器の改良
に係り、伝熱効率の向上と熱媒体の流動抵抗を小さくし
だ熱交換器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a cross-fin type heat exchanger in which a large number of fins are arranged in parallel, and a large number of heat transfer tubes are passed through and in close contact with the fins, thereby improving heat transfer efficiency and increasing heat transfer efficiency. This relates to a heat exchanger that reduces flow resistance.
クロスフィン形の熱交換器は、多数並設したフィンを貫
通して伝熱管を配設し、伝熱管内を流れる熱媒体と、伝
熱管外（フィン相互間の隙間）を流れる熱媒体との間で
熱交換させるものである。A cross-fin type heat exchanger has heat transfer tubes that pass through a large number of fins arranged in parallel, and allows the heat medium flowing inside the heat transfer tubes to flow outside the heat transfer tubes (in the gaps between the fins). It exchanges heat between the two.
この熱交換器において、熱交換効率を向」ニさせる為に
は、フィン相互間の隙間を流れる熱交換媒体の流速を上
げるか、あるいは乱流を起させ、境膜係数を大きくとる
ことが行われている。In order to improve the heat exchange efficiency in this heat exchanger, it is possible to increase the flow rate of the heat exchange medium flowing through the gaps between the fins, or to increase the film coefficient by causing turbulence. It is being said.
しかしながら、このようにして境膜係数を大きくすると
、逆に流動抵抗が増大する。However, increasing the film coefficient in this way increases the flow resistance.
このように、一般の熱交換器では、熱交換効率と、流動
抵抗との間には、表裏一体の関係があり、この辺に熱交
換器としての技術的課題が残されている。As described above, in a general heat exchanger, there is an inextricable relationship between heat exchange efficiency and flow resistance, and technical issues remain in this area as a heat exchanger.
従来のクロスフィン形熱交換器は、第１図及び第２図に
示すように、伝熱管１の囲りにフィン３を切り起した細
長い形状のルーバ２を放射状に形成していた。In the conventional cross-fin heat exchanger, as shown in FIGS. 1 and 2, elongated louvers 2 with fins 3 cut and raised are formed radially around heat transfer tubes 1.
このようにルーバ２を形成することによって、矢印Ａ方
向に流れている熱媒体が、伝熱管１の囲シに円弧状の流
線Ｂをなして流れるので、この流線をほぼ直角方向に切
るようになっておシ、第２図に示すように、流線Ｂはル
ーバ２のエッヂ４に↓つて分流されて乱流となシ、境膜
係数を大きくするようにしている。By forming the louver 2 in this way, the heat medium flowing in the direction of the arrow A flows along the arc-shaped streamline B around the heat exchanger tube 1, so this streamline is cut almost at right angles. As a result, as shown in FIG. 2, the streamline B is branched off toward the edge 4 of the louver 2, creating a turbulent flow and increasing the film coefficient.
又第２図で示すＣは熱流線を示し、伝熱管１の熱がフィ
ン３に熱伝導する径路でちゃ、伝熱管１から放射状に放
熱される熱を効率よくウィンに伝わるように配慮されて
いる。In addition, C shown in Fig. 2 indicates a heat flow line, and the path through which the heat of the heat transfer tube 1 is conducted to the fins 3 is designed so that the heat radiated from the heat transfer tube 1 is efficiently transferred to the win. There is.
しかしながら、熱媒体の流れは第３図に示すように、伝
熱管１の裏側で渦流りを生じて、この部分で熱媒体が滞
留する。However, as shown in FIG. 3, the flow of the heat medium generates a vortex on the back side of the heat transfer tube 1, and the heat medium stagnates in this part.
この熱媒体の滞留は、とりもなおさず伝熱管１のこの部
分の境膜係数を小さくすることになシ、伝熱に対し寄与
しないことになる。This retention of the heat medium does not reduce the film coefficient of this portion of the heat transfer tube 1 and does not contribute to heat transfer.
又このように渦流りが発生すると、流動抵抗も増加する
。従来の上記ルーバでは、上記の渦流りの問題が解決さ
れておらず、熱交換効率及び流動抵抗の点で解決されて
いないのが実情である。Furthermore, when such a vortex is generated, flow resistance also increases. In the conventional louver, the problem of the swirling current has not been solved, and the actual situation is that the heat exchange efficiency and flow resistance have not been solved.
本発明は、上記実情に伝みなされたものであシ、上記渦
流りをなくすようにルーツ（を形成し、熱効率と流動抵
抗の問題を同時に解決したクロスフィ□ン形熱交換器を
提供せんとするものである。The present invention was made in consideration of the above-mentioned circumstances, and aims to provide a cross-fin type heat exchanger that forms roots to eliminate the above-mentioned vortex flow and solves the problems of thermal efficiency and flow resistance at the same time. It is something to do.
即ち本発明は、伝熱管を千Ｉ”Ｓ状に配設し、この伝熱
管の囲りに生ずる熱媒体の流線に沿って扇状のルーバを
設け、熱媒体の流れを扇状のルーバによって整流するこ
とによって渦流をなくすと共に、熱媒体の流れを扇状ル
ーバのエッヂでもって分流し、境膜係数を大きくした事
を特徴とする。That is, in the present invention, heat transfer tubes are arranged in a 1,000"S shape, fan-shaped louvers are provided along the streamlines of the heat medium generated around the heat transfer tubes, and the flow of the heat medium is rectified by the fan-shaped louvers. This feature eliminates vortices and divides the flow of the heat medium using the edges of the fan-shaped louvers, increasing the film coefficient.
以下本発明の一実施例について、詳細に説明する。第４
図において、伝熱管１の配列は千鳥状になっており、フ
ィン３を貫通している。５は伝熱管１の流線Ｂに沿って
、フィン３を切起して設けられた扇状のルーバである。An embodiment of the present invention will be described in detail below. Fourth
In the figure, the heat exchanger tubes 1 are arranged in a staggered manner and pass through the fins 3. A fan-shaped louver 5 is provided along the streamline B of the heat exchanger tube 1 by cutting and raising the fin 3.
このルーバ５は熱媒体の流れ方向Ａ以外の部分に設けら
れ、熱媒体が矢印入方向に流れて伝熱管ＩＫ衝突し、流
線Ｂのように流れるようにしている。This louver 5 is provided in a portion other than the flow direction A of the heat medium, so that the heat medium flows in the direction indicated by the arrow, collides with the heat exchanger tube IK, and flows like a streamline B.
この実施例では、流４９ Ｂに沿って４個のルーバ５を
形成しかつこのフィンの分断に依り境界層を小さくして
熱伝達を促進する様にしている。In this embodiment, four louvers 5 are formed along the flow 49B, and the separation of the fins reduces the boundary layer and promotes heat transfer.
第５図は、ルーバ５を拡大し°Ｃ示したものであり、流
線Ｂは、エッヂ６によって分流されながら、立上シ部７
によって整流される。尚、図中Ｃは熱流線である。FIG. 5 shows an enlarged view of the louver 5 in degrees Celsius, and the streamline B is divided by the edge 6 and flows along the rising edge 7.
rectified by Note that C in the figure is a heat flow line.
以上の、ように溝成した本実施例の作用について以下説
明する。第４図において熱媒体は千鳥状に配列され／と
伝熱管１に対し、矢印入方向に流れる。このように流入
した熱媒体は、先ず伝熱管１に衝突し、流ｉ１Ｂのよう
に流れる。この流ｇｌ Ｂの流れケよ、ルーバ５の立上
り部７によって整流される。一方千鳥状に配列した伝熱
管１の囲りにおいて、ルーバ５の外側を流れる熱媒体は
、矢印Ｅて示すようにルーバ５の外側の立上シ部にて整
流されて流速を早め、伝熱ｇ１の後部において合流し、
下流側に位置する伝熱管１へと順次衝突し、流線Ｂに沿
って流れる。The operation of this embodiment having the grooves as described above will be explained below. In FIG. 4, the heat medium is arranged in a staggered manner and flows in the direction indicated by the arrow with respect to the heat exchanger tubes 1. The heat medium that has flowed in this way first collides with the heat exchanger tube 1 and flows like a stream i1B. This flow glB is rectified by the rising portion 7 of the louver 5. On the other hand, in the area surrounding the heat transfer tubes 1 arranged in a staggered manner, the heat medium flowing outside the louvers 5 is rectified at the rising edge portions outside the louvers 5 as shown by arrow E, increasing the flow velocity and thereby causing heat transfer. merge at the rear of g1,
It sequentially collides with the heat exchanger tube 1 located on the downstream side and flows along the streamline B.
この一連の流れに２いて、ルーバ５によって整流さｎな
がら流６＋ Ｂに沿って閲熱管ｊの後部に流れてきだ熱
媒体は、流速を早めて流れてきた矢印Ｅの流れによって
、矢印Ｆのように吸引されて流れに乗る・。In this series of flows, the heat medium flows along the flow 6+B to the rear of the heat exchanger tube j while being rectified by the louver 5.The heat medium flows in the direction of the arrow F due to the flow of the arrow E, which has sped up the flow velocity. It's like being sucked in and going with the flow.
一方、熱交換効率については第５図に示すように、流線
Ｂのように流れてきた熱媒体は、エッヂ６に分流されて
流れることにより、この部分で乱流となり、かつフィン
の分断に依り境界層を小さくする４Ｓにより境膜係数を
大きくする。On the other hand, regarding the heat exchange efficiency, as shown in Figure 5, the heat medium flowing along the streamline B is diverted to the edge 6 and flows into a turbulent flow at this part, and the fins are separated. Therefore, the boundary layer coefficient is increased by 4S, which reduces the boundary layer.
又、伝熱管１よシ放射状に広がる放熱は、熱流線Ｃで示
すようにルーバ５を伝わって伝２淳され、熱流線を断つ
ことなく効率よくフィン全体に均一に熱伝導される。Further, the heat dissipated radially from the heat transfer tube 1 is transmitted through the louvers 5 as shown by heat flow lines C, and is efficiently and uniformly conducted to the entire fin without cutting off the heat flow lines.
以上、詳述した通り本発明のクロスフィン形熱交挨器に
よれば、伝熱管を千鳥状に配列（−１伝熱管の囲シに扇
状のルーバケ設けたので、流入してぐる熱媒体をルーバ
によって整流し、伝熱管の後部において渦流を生ずるこ
となく、熱媒体を流通させることができた。As described in detail above, according to the cross-fin type heat exchanger of the present invention, the heat exchanger tubes are arranged in a staggered manner (-1) Since the fan-shaped louver buckets are provided around the heat exchanger tubes, the heat medium flowing in and around the heat exchanger is arranged in a staggered manner. The flow was rectified by the louver, and the heat medium was able to flow without creating a vortex flow at the rear of the heat transfer tube.
その結果、熱媒体の整流と伝熱管後部の渦流をなくすこ
との相剰作用により、熱媒体の流通速度を速くしても、
流動抵抗が大きくならない。As a result, due to the mutual effect of rectifying the heat medium and eliminating vortex flow at the rear of the heat transfer tube, even if the flow rate of the heat medium is increased,
Flow resistance does not increase.
一方ルーバのエッヂによって流線を１分して乱流にし、
かつフィンの分断により境界層を小さくする事によ勺境
股係数を増大させ、且つ熱流腺を断たないようにして熱
の伝導をフィン全体にわたって均一に伝わるようにした
ので、熱交換効率を向上する事ができた。On the other hand, the edge of the louver divides the streamline into a turbulent flow,
In addition, by dividing the fins and making the boundary layer smaller, the boundary coefficient is increased, and the heat flow glands are not cut off to ensure that heat is conducted uniformly over the entire fin, thereby increasing heat exchange efficiency. I was able to improve.
このようにして、フィン間を流れる熱媒体の流動抵抗を
小さくシ１、且つ熱交換効軍を同時に向上させることが
でき、優れた効果を冶する。In this way, the flow resistance of the heat medium flowing between the fins can be reduced and the heat exchange efficiency can be improved at the same time, resulting in excellent effects.
第１図は、従来のクロスフィン形熱交換器のフィン平面
図、第２図は第１図のルーバを拡大して示した。Ｈ視図
である。第３図は、伝熱管に対する熱媒体の流線を示し
た説明用図である。
第４図及び第５図は、本発明の一実施・例であり、第４
図はフィンの）Ｚ面図、第５図は第４図のルーバを拡大
して示した斜視図である。
１・・・伝熱管 ３・・−フイ１
５・・−ルーバ ６・・・エッヂ
７・・・立上り部
第１図
第２節
第４図
第３図 第５間FIG. 1 is a fin plan view of a conventional cross-fin heat exchanger, and FIG. 2 is an enlarged view of the louvers in FIG. 1. This is a view from H. FIG. 3 is an explanatory diagram showing streamlines of the heat medium relative to the heat exchanger tube. FIG. 4 and FIG. 5 are one embodiment/example of the present invention, and FIG.
The figure is a Z-plane view of the fin, and FIG. 5 is an enlarged perspective view of the louver shown in FIG. 4. 1...Heat transfer tube 3...-Fieure 1 5...-Louver 6...Edge 7...Rising part Figure 1 Section 2 Figure 4 Figure 3 Between
Claims (1)
状に配設した伝熱管と、前記フィンを切起し伝熱管回り
の流線に沿って設けた扇状のルーバとから成シ、該ルー
バを伝ｒＡ管に対するガス流れ方向以外の部分に設け、
ルーバによって伝熱管口シのガス流れを整流するように
したことを特徴とするクロスフィン形熱交換器。A system consisting of a large number of heat transfer fins arranged in parallel, heat transfer tubes penetrating the fins and arranged in a staggered manner, and fan-shaped louvers cut and raised from the fins and installed along the streamlines around the heat transfer tubes. , the louver is provided in a portion other than the gas flow direction with respect to the transmission rA pipe,
A cross-fin heat exchanger characterized in that the gas flow at the mouth of the heat transfer tube is rectified by a louver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13319283A JPS6026292A (en) | 1983-07-21 | 1983-07-21 | Crossfin type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13319283A JPS6026292A (en) | 1983-07-21 | 1983-07-21 | Crossfin type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6026292A true JPS6026292A (en) | 1985-02-09 |
Family
ID=15098854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13319283A Pending JPS6026292A (en) | 1983-07-21 | 1983-07-21 | Crossfin type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6026292A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012017044A3 (en) * | 2010-08-05 | 2012-04-05 | Behr Gmbh & Co. Kg | Plate-shaped heat exchanger for a cooling device comprising at least one heat exchanger package |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51143948A (en) * | 1975-06-06 | 1976-12-10 | Hitachi Ltd | Heat exchanger |
| JPS5599591A (en) * | 1979-01-25 | 1980-07-29 | Matsushita Electric Ind Co Ltd | Heat exchanger with fin |
| JPS5716319A (en) * | 1980-07-03 | 1982-01-27 | Teraoka Seiko Co Ltd | Date setting device for electronic balance provided with label issuing function |
-
1983
- 1983-07-21 JP JP13319283A patent/JPS6026292A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51143948A (en) * | 1975-06-06 | 1976-12-10 | Hitachi Ltd | Heat exchanger |
| JPS5599591A (en) * | 1979-01-25 | 1980-07-29 | Matsushita Electric Ind Co Ltd | Heat exchanger with fin |
| JPS5716319A (en) * | 1980-07-03 | 1982-01-27 | Teraoka Seiko Co Ltd | Date setting device for electronic balance provided with label issuing function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012017044A3 (en) * | 2010-08-05 | 2012-04-05 | Behr Gmbh & Co. Kg | Plate-shaped heat exchanger for a cooling device comprising at least one heat exchanger package |
| US9638476B2 (en) | 2010-08-05 | 2017-05-02 | Mahle International Gmbh | Plate-shaped heat exchanger for a cooling device comprising at least one heart exchanger package |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3048549B2 (en) | Air conditioner heat exchanger | |
| JPS63183391A (en) | Heat exchanger of fin tube type | |
| JP2966825B2 (en) | Air conditioner heat exchanger | |
| KR0127598Y1 (en) | Heat exchanger | |
| JPH10197182A (en) | Heat exchange for air conditioner | |
| US5947194A (en) | Heat exchanger fins of an air conditioner | |
| JPS6026292A (en) | Crossfin type heat exchanger | |
| JPH08170890A (en) | Cross fin heat exchanger | |
| JPS616592A (en) | Finned heat exchanger | |
| JP2609838B2 (en) | Air conditioner heat exchanger | |
| JPS616591A (en) | Finned heat exchanger | |
| JPS60223995A (en) | Heat exchanger equipped with fin | |
| JPS62172193A (en) | Heat exchanger | |
| JPS6142198B2 (en) | ||
| JPS60194290A (en) | Heat exchanger equipped with fins | |
| JPS62123293A (en) | Heat exchanger with fin | |
| JPS5923982Y2 (en) | heat exchanger with fins | |
| JPS6319745Y2 (en) | ||
| JPH01155197A (en) | Fin tube type heat exchanger | |
| KR200152095Y1 (en) | Heat exchanger for air conditioner | |
| JPS63259393A (en) | Finned-tube type heat exchanger | |
| KR100261690B1 (en) | Heat exchanger | |
| KR100187225B1 (en) | Heat exchanger | |
| JPS6155595A (en) | Heat exchanger with fin | |
| KR100197686B1 (en) | Heat exchanger for air conditioner |