JPS58160797A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPS58160797A JPS58160797A JP4294082A JP4294082A JPS58160797A JP S58160797 A JPS58160797 A JP S58160797A JP 4294082 A JP4294082 A JP 4294082A JP 4294082 A JP4294082 A JP 4294082A JP S58160797 A JPS58160797 A JP S58160797A
- Authority
- JP
- Japan
- Prior art keywords
- exchange medium
- heat exchange
- heat exchanger
- fins
- heat
- 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
-
- 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
- F28F1/126—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 consisting of zig-zag shaped fins
- F28F1/128—Fins with openings, e.g. louvered fins
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、熱伝達効率を高めることのできる熱交換器に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat exchanger capable of increasing heat transfer efficiency.
従来から熱交換器の熱伝達効率を高めるために各種形状
のフィンを多数導管へ付設し、また、フィンに多数のス
リットやルーバーを形成するなどして伝熱面積を増加し
、媒体に乱流を発生させ境膜抵抗を低下させることなど
が行なわれていた。Conventionally, in order to increase the heat transfer efficiency of heat exchangers, many fins of various shapes have been attached to the conduit, and many slits and louvers have been formed on the fins to increase the heat transfer area and reduce turbulence in the medium. Attempts have been made to reduce membrane resistance by generating
すなわち、第１図ないし第８図は、従来のフィン形状例
を示す斜視図であって、第１図は、導管（２）に平板状
フィン（８）を付設した熱交換器（１）の例を示１−９
第２図は、フィンとして、スリット（８）を設けた折曲
板状フィン（６）とした例を示し。That is, FIGS. 1 to 8 are perspective views showing examples of conventional fin shapes, and FIG. 1 shows a heat exchanger (1) in which a flat fin (8) is attached to a conduit (2). Show examples 1-9
FIG. 2 shows an example of a bent plate-shaped fin (6) provided with a slit (8) as the fin.
第３図は、フィンとして、ルーバー（１２）を設けたコ
ルゲートノート状フィン（１０）とした例を示すもので
ある。FIG. 3 shows an example of a corrugated notebook-shaped fin (10) provided with a louver (12) as the fin.
しかしながら、従来のこれらの熱交換器で得られるより
もさらに熱伝達効率を高め、小型化、軽量化された熱交
換器が望捷れている。However, there is a desire for a heat exchanger that has higher heat transfer efficiency than those obtained with conventional heat exchangers and is smaller and lighter in weight.
本発明者は、熱交換器についてフィン、とくに。The present inventors have particularly focused on fins for heat exchangers.
フィンにスリット、ルーバー、ブリッジ状その他の切起
し片を形成する場合の効果を詳細に検討した結果、ルー
バー等の形成効果は、熱交換媒体の乱流形成に基づく効
果と、ルーバー等の開放端部における放熱効果とからな
ることを見出して本発明をなしたものである。すなわち
１本発明は、少なくとも熱交換器の外部を流す熱交換媒
体の流入側に面する開放端部に切込みを設けたフィンを
導管に付設した熱交換器である。As a result of a detailed study of the effects of forming slits, louvers, bridges, and other cut-and-raised pieces on the fins, we found that the effects of forming louvers, etc. are based on the formation of turbulent flow in the heat exchange medium and the opening of the louvers, etc. The present invention was made based on the discovery that the heat dissipation effect is achieved at the end portions. That is, one aspect of the present invention is a heat exchanger in which a conduit is provided with a fin having a notch in the open end facing at least the inflow side of the heat exchange medium flowing outside the heat exchanger.
次に２本発明の実施例を添付の図面に基づいて説明する
。Next, two embodiments of the present invention will be described based on the accompanying drawings.
第４図は、フィンが平板状である熱交換器に本発明を適
用した一実施例を示す部分斜視図であって、（１）は、
熱交換器であって別の容器中に設置される。（２）は、
熱交換媒体を通す導管、（８）は平板状フィンであって
、適宜間隔をおいて積層されて導管（２）に付設されて
いる。（４）は、フィンの開放端部であって、熱交換器
（１）の外部を流れる熱交換媒体の流入側（４ａ）及び
流出側（４ｂ）に鋸歯状に切欠いた切込み（５）が設け
られている。FIG. 4 is a partial perspective view showing an embodiment in which the present invention is applied to a heat exchanger with flat fins, in which (1)
A heat exchanger placed in a separate container. (2) is
The conduit (8) through which the heat exchange medium passes is a flat fin, which is stacked at appropriate intervals and attached to the conduit (2). (4) is the open end of the fin, which has serrated notches (5) on the inflow side (4a) and outflow side (4b) of the heat exchange medium flowing outside the heat exchanger (1). It is provided.
第５図は、フィンが折曲板状でスリットを有すＤ熱交換
器に本発明を適用した一実施例を示す部分斜視図であっ
て、（２）は、熱交換媒体を通す導管、（６）は、折曲
板状のフィンであって、適宜間隔をおいて積層され導管
（２）に付設されている。FIG. 5 is a partial perspective view showing an embodiment in which the present invention is applied to a D heat exchanger in which the fins are bent plate-shaped and have slits, and (2) is a conduit through which a heat exchange medium passes; (6) is a bent plate-shaped fin, which is laminated at appropriate intervals and attached to the conduit (2).
また、折曲板状フィン（６）には、多数のスリット（８
）が適宜設けてあり、スリット（８）の周縁（７）には
、熱交換器（１）の外部を流れる熱交換媒体の流入側（
７ａ）、流出側（７ｂ）にも鋸歯状の切込み（５）が設
けられている。また、（９）は、折曲板状フィン（８）
の熱交換媒体の流入側（４ａ）に設けられた。In addition, the bent plate-like fin (6) has a large number of slits (8
) is provided as appropriate, and the periphery (7) of the slit (8) is provided with an inflow side (
7a), the outflow side (7b) is also provided with serrated cuts (5). In addition, (9) is a bent plate-like fin (8)
was provided on the inflow side (4a) of the heat exchange medium.
第６図は、フィンがコルゲートンート状でアル熱交換器
に本発明を適用した一実施例を示す部分斜視図であって
、（２）は、熱交換媒体を通す導管。FIG. 6 is a partial perspective view showing an embodiment in which the present invention is applied to an aluminum heat exchanger having corrugated fins, and (2) is a conduit through which a heat exchange medium passes.
（１０）は、コルゲートンート状のフィンであって。(10) is a corrugated tote-shaped fin.
適宜間隔をおいて曲折部で導管（２）に、ろう付け。Braze to the conduit (2) at the bend at appropriate intervals.
溶接等適宜手段で付設されている。コルゲート／−；・
状フィン（１０）の平面部（１１）には、ルーバー（１
２）が切り起こされている。（１３）は、熱交換器の、
外部を流れる熱交換媒体の流入側のフィンの開放端部（
４ａ）に設けられた台形状の切込みであり。It is attached by appropriate means such as welding. Colgate/-;・
The flat part (11) of the shaped fin (10) has a louver (1
2) has been cut up. (13) is the heat exchanger,
The open end of the fin on the inlet side of the heat exchange medium flowing outside (
This is a trapezoidal notch provided in 4a).
（Ｈ）ハ、 ルー バー（１０）の切起し縁辺であっ
て。(H) C. The cut and raised edge of the louver (10).
鋸歯状の切込み（１４ａ）が切られている。 （１４ｂ
）は。Serrated notches (14a) are cut. (14b
)teeth.
ルーバー（１０）のフィン（１１）の平面部（１２）側
に設けられた鋸歯状の切込みである′。These are sawtooth-like notches provided on the flat part (12) side of the fin (11) of the louver (10).
このように構成されている本発明の熱交換器は。The heat exchanger of the present invention is configured as described above.
従来の熱交換器と同様に別の容器中に設置して。Installed in a separate container like a conventional heat exchanger.
従来通りの方法で使用するものである。It is used in the conventional manner.
すなわち、熱交換媒体として、高温側−低温側が、液体
−気体、気体−液体、液体−液体、気体−気体などの組
合せを目゛的、用途によって選択し。That is, as the heat exchange medium, combinations such as liquid-gas, gas-liquid, liquid-liquid, gas-gas, etc. on the high-temperature side and low-temperature side are selected depending on the purpose and use.
それらを導管（２）中を通す熱交換媒体とするか。Should they be the heat exchange medium passed through the conduit (2)?
あるいは、熱交換器（１）の外部を流す熱交換媒体とす
るか適宜選択して使用するものである。Alternatively, the heat exchange medium may be used to flow outside the heat exchanger (1), or may be appropriately selected and used.
また１本発明における切込みの形状は、前述のような鋸
歯状、半円状２台形状などに限られることはなく、適宜
に形状を選択し、これらを単独にあるいは適当に組合せ
て設けることができるし。Furthermore, the shape of the cut in the present invention is not limited to the sawtooth shape, semicircular shape, etc. described above, and may be appropriately selected and provided singly or in an appropriate combination. I can do it.
刃込みを入れる場所も必ずしもフィンの開放端部合体で
ある必要はなく、少なくとも熱交換器の外を流す熱交換
媒体の流入側に面する開放端部に設置すればよい。これ
は、フィンにスリット、ルーバー、ブリッジなどが設け
である場合も同様にこれらの少なくとも熱交換媒体の流
入側に面する周縁に設置すればよい。なお、第７図に一
例を示したように切込みの先端を適当に曲折することに
よって効率を上げるようにすることもできる。The location where the blade is inserted does not necessarily have to be at the combined open end of the fins, but may be installed at least at the open end facing the inflow side of the heat exchange medium flowing outside the heat exchanger. Similarly, when the fins are provided with slits, louvers, bridges, etc., they may be installed at least on the periphery facing the inflow side of the heat exchange medium. Note that efficiency can also be increased by appropriately bending the tip of the cut, as shown in an example in FIG.
本発明の熱交換器は、このように導管に付設するフィン
を、少なくとも熱交換媒体の流入側に面する開放端部に
任意形状の切込みを多数人れたフィンとしたので、従来
の真直な開放端部のフィンに較べて、開放端部の長さを
著増し得るので開放端部と熱交換媒体との伝熱、ことに
、熱交換媒体流の境界層が未発達な段階の前部開放端部
の伝熱が顕著に増進し、さらに、熱交換媒体流が切込み
間を通過する際に乱されるのでフィンの表裏面の熱交換
媒体との伝熱が促進されるなどの効果が相乗的に発揮さ
れるので、伝熱性能がすぐれた熱交換器が得られたもの
であって、既存商品の全体設計の変更なしに高効率化し
得るし、熱効率が約２０チ以−Ｆは向上し得、熱交換媒
体の通気抵抗、流動１抵抗の一ト昇を最小限にすること
ができるのに伴なって、装置を小型化、軽量化し得るな
ど大きな効果が認められるものである。In the heat exchanger of the present invention, the fins attached to the conduits are provided with a large number of arbitrarily shaped cuts at least in the open end facing the heat exchange medium inflow side, so that the fins attached to the conduits are not conventionally straight. Compared to open-end fins, the length of the open end can be significantly increased, which improves the heat transfer between the open end and the heat exchange medium, especially at the front where the boundary layer of the heat exchange medium flow is still underdeveloped. Heat transfer at the open end is significantly increased, and the flow of the heat exchange medium is disturbed when passing between the notches, so heat transfer with the heat exchange medium on the front and back surfaces of the fins is promoted. Since the synergistic effects are achieved, a heat exchanger with excellent heat transfer performance has been obtained, and the efficiency can be increased without changing the overall design of existing products. It is possible to minimize the increase in the ventilation resistance and flow resistance of the heat exchange medium, and the device can be made smaller and lighter, which is a significant effect.
第１図、第２図、第３図は、従来のフィンを付設した熱
交換器の斜視図、第４図は１本発明の一実施例を示す部
分斜視図、第５図は２本発明の他の実施例を示す部分斜
視図、第６図は２本発明のさらに他の実施例を示す部分
斜視図であり、第７図は２本発明の曲折した切込みの一
実施例を示す部分斜視図である。
（１） 熱交換器 （２）・導 管（３）
平板状フィン （４） フィンの開放端部（５）・鋸
歯状切込み （６）・曲折板状フィン（８） スリッ
ト（９） 半円形状切込み（１０） コルゲートノ
ート状フィン（１２） ルーバー （１３）
台形状切込み特許出願人 日本軽金属株式会社
第 １ 図 第 ２ 図第
４図 第５図
５、
第１図
第 ３ 図
第６１ス１Figures 1, 2, and 3 are perspective views of a conventional heat exchanger equipped with fins, Figure 4 is a partial perspective view showing an embodiment of the present invention, and Figure 5 is a perspective view of a heat exchanger equipped with conventional fins. FIG. 6 is a partial perspective view showing still another embodiment of the present invention, and FIG. 7 is a partial perspective view showing an embodiment of the bent cut of the present invention. FIG. (1) Heat exchanger (2)/conduit (3)
Flat fin (4) Open end of fin (5), serrated notch (6), bent plate fin (8) Slit (9) Semicircular notch (10) Corrugated notebook fin (12) Louver (13) )
Trapezoidal cut patent applicant Nippon Light Metal Co., Ltd. Figure 1 Figure 2 Figure 4 Figure 5 Figure 5, Figure 1 Figure 3 Figure 61 S1
Claims (1)
側に面する開放端部に切込みを設けたフィンを導管に付
設してなる熱交換器。1) A heat exchanger in which a conduit is provided with a fin provided with a notch in the open end facing at least the inflow side of the heat exchange medium flowing outside the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4294082A JPS58160797A (en) | 1982-03-19 | 1982-03-19 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4294082A JPS58160797A (en) | 1982-03-19 | 1982-03-19 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58160797A true JPS58160797A (en) | 1983-09-24 |
Family
ID=12650004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4294082A Pending JPS58160797A (en) | 1982-03-19 | 1982-03-19 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58160797A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106782U (en) * | 1984-12-20 | 1986-07-07 | ||
| JPS61149685U (en) * | 1985-03-05 | 1986-09-16 | ||
| JPS6218585U (en) * | 1985-07-16 | 1987-02-04 | ||
| JP2007187402A (en) * | 2006-01-16 | 2007-07-26 | Daikin Ind Ltd | Air conditioner |
| EP2515065A1 (en) * | 2011-04-21 | 2012-10-24 | Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO | A heat exchanger |
| FR3109625A1 (en) * | 2020-04-28 | 2021-10-29 | Safran | HEAT EXCHANGER FOR AN AIRCRAFT TURBOMACHINE |
-
1982
- 1982-03-19 JP JP4294082A patent/JPS58160797A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106782U (en) * | 1984-12-20 | 1986-07-07 | ||
| JPS61149685U (en) * | 1985-03-05 | 1986-09-16 | ||
| JPS6218585U (en) * | 1985-07-16 | 1987-02-04 | ||
| JP2007187402A (en) * | 2006-01-16 | 2007-07-26 | Daikin Ind Ltd | Air conditioner |
| EP2515065A1 (en) * | 2011-04-21 | 2012-10-24 | Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO | A heat exchanger |
| FR3109625A1 (en) * | 2020-04-28 | 2021-10-29 | Safran | HEAT EXCHANGER FOR AN AIRCRAFT TURBOMACHINE |
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