JPH0244192A - Fin tube type heat exchanger - Google Patents
Fin tube type heat exchangerInfo
- Publication number
- JPH0244192A JPH0244192A JP19565588A JP19565588A JPH0244192A JP H0244192 A JPH0244192 A JP H0244192A JP 19565588 A JP19565588 A JP 19565588A JP 19565588 A JP19565588 A JP 19565588A JP H0244192 A JPH0244192 A JP H0244192A
- Authority
- JP
- Japan
- Prior art keywords
- fin
- heat transfer
- thermal conducting
- tube
- fluid
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 239000002826 coolant Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- AZBAQHIVVLQMFX-UHFFFAOYSA-N 4-(2,4-dimethylphenyl)-5-methyl-1,3-thiazol-2-amine Chemical compound S1C(N)=NC(C=2C(=CC(C)=CC=2)C)=C1C AZBAQHIVVLQMFX-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は間隙を置いて多数並べられた板状のフィンに
直交して複数本の伝熱チューブを貫通密着してなるフィ
ンチューブ形熱交換器の改良に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fin-tube heat exchanger in which a plurality of heat transfer tubes are passed through and in close contact with orthogonal to a large number of plate-shaped fins arranged at intervals. It concerns the improvement of utensils.
従来、この種のフィンチューブ形熱交換器は冷蔵riI
rまたは空気調和機の冷凍サイクル中の蒸発器などとし
て広く用いられているもので、第4図に示すような構造
を呈している。すなわち第4図において、(a)は従来
のフィンチューブ形熱交換器の正面図であり、(b)は
そのb−b断面図で2図中(1)は間隙を置いて多数並
べられ几板状のフィン、(2)はこのフィン(1)K対
して直交するように貫通し機械的拡管手段などにより密
着接合され九複数本の伝熱チューブである。そして、こ
の複数本の伝熱チューブ(2)はその両側端部において
U字状の連結管(図示せず)により連結され、水やフロ
ン等の冷媒となる第1流体が入口から出口に向って伝熱
チューブ(2)内を流れるように構成されている。Conventionally, this type of fin-tube heat exchanger
It is widely used as an evaporator in the refrigeration cycle of air conditioners or air conditioners, and has a structure as shown in FIG. That is, in FIG. 4, (a) is a front view of a conventional fin-tube heat exchanger, (b) is a sectional view taken along line bb, and (1) in FIG. The plate-shaped fin (2) is a plurality of nine heat transfer tubes that penetrate orthogonally to the fin (1) K and are tightly joined by mechanical tube expansion means. The plurality of heat transfer tubes (2) are connected at both ends by U-shaped connecting pipes (not shown), and the first fluid, which is a refrigerant such as water or fluorocarbon, is directed from the inlet to the outlet. It is configured to flow through the heat transfer tube (2).
従って、第1流体が伝熱チューブ(2)内を流れている
とき、空気等の第2流体をフィンft)KGってその間
の間隙に流通すれば、フィン(1)および伝熱チューブ
(2)を介して、第1流体と第2流体の間で熱交換が行
われることになる。Therefore, when the first fluid is flowing inside the heat transfer tube (2), if the second fluid such as air flows through the gap between the fins (ft) and the heat transfer tube (2), then the fins (1) and the heat transfer tube (2) ), heat exchange will take place between the first fluid and the second fluid.
しかしながら、従来のフィンチューブ形熱交換器におい
ては、第2流体がフィン(1)に沿ってその間隙に流れ
ると、第5図に示すように、フィン(1)の第2流体出
口側に当る伝熱チューブ(2)後方のフィン部分(3)
によって、第2流体の流れが淀むという現象すなわち止
水域が発生し、フィン(りと第2流体との熱伝達効率が
低下するという問題点があった。However, in the conventional fin-tube heat exchanger, when the second fluid flows along the fins (1) into the gap, it hits the second fluid outlet side of the fins (1), as shown in FIG. Heat transfer tube (2) Rear fin part (3)
As a result, a phenomenon in which the flow of the second fluid stagnates, that is, a dead zone occurs, resulting in a problem that the heat transfer efficiency between the fins and the second fluid decreases.
ま念、従来のフィンチューブ形熱交換器は、伝熱チュー
ブ(2)の隣接相互の中心開路@(S)が該伝熱チュー
ブ(2)の外径の12倍より雛れていた〜め。By the way, in conventional fin-tube heat exchangers, the center open circuit @ (S) between adjacent heat transfer tubes (2) was larger than 12 times the outer diameter of the heat transfer tubes (2). .
熱伝達特性面からも熱伝達率が悪いというものであった
。The heat transfer coefficient was also poor in terms of heat transfer characteristics.
この発明は上記のような問題点を解消するためになされ
念もので、熱伝達特性がよ(、シかも流動損失の少ない
フィンチューブ形熱交換器を得ることを目的とする。This invention was devised to solve the above-mentioned problems, and its object is to provide a fin-tube heat exchanger with improved heat transfer characteristics and less flow loss.
この発明に係るフィンチューブ形熱交換器は。 A fin-tube heat exchanger according to the present invention.
伝熱チューブの隣接相互の中心間距離を該伝熱チューブ
の外径の1.8〜2.2倍の範囲内にするとともに、フ
ィンの流体用口側となる上記伝熱チューブ後方のフィン
存在を少なくするようにしたものである。The center-to-center distance between adjacent heat transfer tubes is within a range of 1.8 to 2.2 times the outer diameter of the heat transfer tube, and a fin is present at the rear of the heat transfer tube, which is the fluid port side of the fin. It is designed to reduce the amount of
この発明におけるフィンチューブ形熱交換器のフィンは
、そのフィンKGって流れる流体のW口側となる伝熱チ
ューブ後方のフィン存在を少なくしているtめ、フィン
に沿って流れる流体が伝熱チューブ後方で淀むという現
象すなわち止水域の発生がなくなることにより、熱伝達
特性が向上する。また、伝熱チューブの隣接相互間の距
離を従来のものより短かくし所定範囲内に設定している
ことにより、流動損失を招くことなく熱伝達特性を上げ
ることができる。The fins of the fin-tube heat exchanger in this invention reduce the presence of fins at the rear of the heat transfer tube, which is the W port side of the fluid flowing through the fins KG, so that the fluid flowing along the fins can conduct heat. By eliminating the phenomenon of stagnation at the rear of the tube, that is, the occurrence of a dead zone, the heat transfer characteristics are improved. Furthermore, by setting the distance between adjacent heat transfer tubes to be shorter than that of conventional tubes and within a predetermined range, heat transfer characteristics can be improved without causing flow loss.
以下この発明の実施例について説明する。第1図はこの
発明の一実施例を示す要部断面図で、第4図(b)K相
当する図である。この第1図において従来のものと同−
ftは相当する部分には同一符号で示しているように、
(1)は板状のフィン、(2)はこのフィン(1)に直
交して貫通密着し念伝熱チューブであり、冷媒となる第
1流体が流れるようKなっている。(4)はこの発明に
よって設けられtフィン切欠部であり、フィン(1)に
沿って流れる空気等の第2流体の出口側に当る伝熱チュ
ーブ(2)後方のフィン存在を少なくするようにカット
している部分である。(El+は伝熱チューブ(2)の
隣接相互の中心間距離を示し、この発明においてはその
中心開路111[t (El)を該伝熱チューブ(2)
の外径の1.8〜2.2倍の範囲内に入るように設定し
ている。この理由について次に述べる。Examples of the present invention will be described below. FIG. 1 is a sectional view of a main part showing an embodiment of the present invention, and corresponds to FIG. 4(b)K. In this figure 1, the same as the conventional one.
ft is indicated by the same reference numerals in the corresponding parts.
(1) is a plate-shaped fin, and (2) is a thermal heat transfer tube that penetrates and fits perpendicularly to the fin (1) so that the first fluid serving as a refrigerant flows therethrough. (4) is a T-fin notch provided according to the present invention, and is designed to reduce the presence of fins at the rear of the heat transfer tube (2), which is on the outlet side of the second fluid such as air flowing along the fins (1). This is the part that is being cut. (El+ indicates the distance between the centers of adjacent heat transfer tubes (2), and in this invention, the center open circuit 111 [t (El) is defined as the center distance between adjacent heat transfer tubes (2).
It is set within a range of 1.8 to 2.2 times the outer diameter of. The reason for this will be explained next.
すなわち、第3図は伝熱チューブ(2)の間隔と熱伝達
率、流動損失の関係を表わした特性図であり。That is, FIG. 3 is a characteristic diagram showing the relationship between the spacing of the heat transfer tubes (2), heat transfer coefficient, and flow loss.
この特性図から熱伝達率が向上し、かつ流動損失も急激
に大きくならない範囲は、伝熱チューブ(2)の隣擺相
互の中心間距離+8)が該伝熱チューブ(2)の外径の
1.8〜2.2倍の間忙あることが分ったからである。From this characteristic diagram, the range in which the heat transfer coefficient improves and the flow loss does not increase sharply is that the distance between adjacent centers of the heat transfer tube (2) +8) is equal to the outer diameter of the heat transfer tube (2). This is because it was found that they were 1.8 to 2.2 times as busy.
なお、第2図はこの発明の変形実施例を示すもので、@
1図のものと異なるところは、フィンfl)に沿って流
れる第2流体の出口側のフィン部分を。In addition, FIG. 2 shows a modified embodiment of this invention.
The difference from the one in Figure 1 is the fin portion on the exit side of the second fluid flowing along the fin fl).
伝熱チューブ(2)の後方のみに限って切欠(のではな
く、全体にわ九って一様忙カットしている点である。こ
のように変形しても第1図のものと同様に、伝熱チュー
ブ(2)の後方に存在するフィン部分は少な(なるので
、第2流体の淀み現象を防げることは明らかである。The point is that the heat transfer tube (2) is not only cut out at the rear, but is cut uniformly across the whole. It is clear that the fin portion present at the rear of the heat transfer tube (2) is small, so that the stagnation phenomenon of the second fluid can be prevented.
この発明は以上に述べたように、フィンVcGって流れ
る流体の出口側となる伝熱チューブ後方のフィン存在を
少なくして、その流体の淀み現象が発生しないようにす
るとともに、伝熱チューブの間隔を従来のものよシ短か
くし所定範囲内に入るように設定し念ので、フィン効率
が改善され、熱伝達特性がよ(流動損失の少ないフィン
チューブ形熱交換器を得ることができる。そしてフィン
チューブ形熱交換器の小形化、軽量化を図ることが可能
となるものである。As described above, this invention reduces the presence of fins VcG at the rear of the heat transfer tube, which is the outlet side of the flowing fluid, to prevent the fluid from stagnation, and to prevent the stagnation of the fluid from occurring. Since the spacing is set to be shorter than the conventional one and within a predetermined range, the fin efficiency is improved and the heat transfer characteristics are improved (a fin-tube heat exchanger with less flow loss can be obtained. This makes it possible to reduce the size and weight of the fin-tube heat exchanger.
第1図および第2図はそれぞれこの発明の異なる実施例
を示す要部断面図、第3図はフィンチューブ形熱交換器
の伝熱チューブの間隔と熱伝達率および流動損失の関係
を示す特性図、第4図は従来のフィンチューブ形熱交換
器を示すもので、(a)は正面図、(b)はそのb−b
断面図である。第5図は従来のものの問題点を説明する
説明図である。
なお2図中同一符号は同一または相当部分を示し、(1
)は板状のフィン、(2)は伝熱チューブ、(4)はフ
ィン切欠部、(S)は伝熱チューブの中心間距離である
。FIGS. 1 and 2 are sectional views of main parts showing different embodiments of the present invention, and FIG. 3 is a characteristic showing the relationship between the spacing of heat transfer tubes, heat transfer coefficient, and flow loss of a fin-tube heat exchanger. 4 shows a conventional fin-tube heat exchanger, (a) is a front view, and (b) is a bb-b
FIG. FIG. 5 is an explanatory diagram illustrating the problems of the conventional method. In addition, the same symbols in the two figures indicate the same or equivalent parts, (1
) is a plate-shaped fin, (2) is a heat transfer tube, (4) is a fin notch, and (S) is a center-to-center distance of the heat transfer tube.
Claims (1)
本の伝熱チユーブを貫通密着してなるフインチユーブ形
熱交換器において、上記伝熱チユーブの隣接相互の中心
間距離(8)を該伝熱チユーブの外径の1.8〜2.2
倍の範囲内にするとともに、上記フインの流体出口側と
なる上記伝熱チユーブ後方のフイン存在を少なくするよ
うにしたことを特徴とするフインチユーブ形熱交換器。In a fin tube type heat exchanger in which a plurality of heat transfer tubes are passed through and in close contact with orthogonal to plate-shaped fins arranged with gaps, the center-to-center distance (8) between adjacent heat transfer tubes is defined as 1.8 to 2.2 of the outer diameter of the heat transfer tube
1. A fin-tube heat exchanger, characterized in that the number of fins is within the range of double the number of fins, and the presence of fins at the rear of the heat transfer tube, which is the fluid outlet side of the fins, is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19565588A JPH0244192A (en) | 1988-08-05 | 1988-08-05 | Fin tube type heat exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19565588A JPH0244192A (en) | 1988-08-05 | 1988-08-05 | Fin tube type heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0244192A true JPH0244192A (en) | 1990-02-14 |
Family
ID=16344786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19565588A Pending JPH0244192A (en) | 1988-08-05 | 1988-08-05 | Fin tube type heat exchanger |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0244192A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5692561A (en) * | 1995-01-23 | 1997-12-02 | Lg Electronics, Inc. | Fin tube heat exchanger having inclined slats |
WO2009130769A1 (en) | 2008-04-23 | 2009-10-29 | 三菱電機株式会社 | Hand dryer |
-
1988
- 1988-08-05 JP JP19565588A patent/JPH0244192A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5692561A (en) * | 1995-01-23 | 1997-12-02 | Lg Electronics, Inc. | Fin tube heat exchanger having inclined slats |
WO2009130769A1 (en) | 2008-04-23 | 2009-10-29 | 三菱電機株式会社 | Hand dryer |
EP2946708A1 (en) | 2008-04-23 | 2015-11-25 | Mitsubishi Electric Corporation | Hand dryer |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3217798A (en) | Heat exchanger | |
US5890532A (en) | Heat exchanger for air conditioner | |
JP2007505282A (en) | Heat exchanger | |
JPH0244192A (en) | Fin tube type heat exchanger | |
JPS6162794A (en) | Heat exchanger with fins | |
JP2000283677A (en) | Heat exchanger | |
JPH0375498A (en) | Fine tube type heat exchanger | |
JPH05215482A (en) | Heat exchanger | |
JPH02166394A (en) | Heat exchanger with fin | |
JPS59206128A (en) | Production of plate-finned heat exchanger | |
JP2008121932A (en) | Heat exchanger | |
JP2003302190A (en) | Corrugated fin type heat exchanger | |
JPS62175591A (en) | Fin tube type heat exchanger | |
JPS58214783A (en) | Heat exchanger | |
JPH0264396A (en) | Heat exchanger | |
JPS6020094A (en) | Heat exchanger | |
JPS633180A (en) | Fin tube type heat exchanger | |
JPS5612997A (en) | Heat exchanger | |
JPS59221597A (en) | Heat exchanger | |
JPS59147995A (en) | Finned heat exchanger | |
JPH01252899A (en) | Heat transfer fin and heat exchanger | |
JPS5811396A (en) | Heat exchanger | |
JPS62147291A (en) | Finned tube type heat exchanger | |
KR0164643B1 (en) | Heat exchanger fin | |
JP2692917B2 (en) | Heat exchanger |