JP3838136B2 - Finned heat exchanger for air conditioner - Google Patents

Finned heat exchanger for air conditioner Download PDF

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Publication number
JP3838136B2
JP3838136B2 JP2002096517A JP2002096517A JP3838136B2 JP 3838136 B2 JP3838136 B2 JP 3838136B2 JP 2002096517 A JP2002096517 A JP 2002096517A JP 2002096517 A JP2002096517 A JP 2002096517A JP 3838136 B2 JP3838136 B2 JP 3838136B2
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Japan
Prior art keywords
fins
heat exchanger
heat transfer
heat
air conditioner
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Expired - Lifetime
Application number
JP2002096517A
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Japanese (ja)
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JP2003294384A (en
Inventor
努 清水
宏司 前川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2002096517A priority Critical patent/JP3838136B2/en
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    • 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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、空気調和機に用いられるフィン付き熱交換器に関するものである。
【０００２】
【従来の技術】
従来のフィン付き熱交換器は熱交換能力を改善するため、特開昭６３―１８３３９１号公報の図７に示すようにフィン面の表裏両側に複数の切り起しを設けたものが用いられていた。
【０００３】
【発明が解決しようとする課題】
しかしながら、従来のフィン付き熱交換器では、伝熱管を複数段用い、さらに段方向に隣接するそれぞれの伝熱管の内部を流れる冷媒の温度差があるとき、それぞれの伝熱管を流れる流体間で広い表面積を有しているフィンを通して熱伝導により熱交換する。このため、フィン付き熱交換器を複数段で用いても熱交換能力の効果的な向上はあまりないという課題を有していた。
【０００４】
本発明はこのような従来の課題を解決するものであり、複数段で用いても段方向に隣接するそれぞれの伝熱管の内部を流れる流体間でフィンを通して熱伝導するのを抑制し、複数段での熱交換能力を効果的に向上させることを目的とするものである。
【０００５】
【課題を解決するための手段】
上記課題を解決するために本発明のフィン付き熱交換器は、（１）一定間隔で平行にならべられるとともに、その間を気体が流動するフィンと前記フィンに所定の段ピッチ列ピッチで直角に挿入され、内部を冷媒が通過する伝熱管から構成され、段方向に隣接する凝縮時過熱部における前記伝熱管の間の前記フィンに逆ハの字形の切り込み、切り抜きまたは切り起こしを設けたもの、または、（２）段方向に隣接する凝縮時過熱部の前記伝熱管の間の前記フィンにＶ字形の切り込み、切り抜きまたは切り起こしを設けるものである。
【０００６】
【発明の実施の形態】
本発明のフィン付き熱交換器は、（１）一定間隔で平行にならべられるとともに、その間を気体が流動するフィンと前記フィンに所定の段ピッチ列ピッチで直角に挿入され、内部を冷媒が通過する伝熱管から構成され、段方向に隣接する凝縮時過熱部における前記伝熱管の間の前記フィンに逆ハの字形に切り込み、切り抜きまたは切り起こしを設け、段方向に隣接するそれぞれのの伝熱管の内部を流れる流体間で、フィンを通して熱伝導するのを抑制し、複数段での熱交換能力を効果的に向上させることができる。
【０００７】
さらに逆ハの字形の切り込みまたは切り抜きまたは切り起こしとすることにより、ヒートポンプ式空気調和機において熱交換器が蒸発器として使用される際に、凝縮水は逆ハの字形の切り込みまたは切り抜きまたは切り起こしに沿って流下するため熱交換器フィンの中央付近で水処理が可能となり、フィン外への凝縮水の飛び跳ねによる周囲の汚染を防止することが可能となる。
【０００８】
（２）段方向に隣接する凝縮時過熱部における伝熱管の間の前記フィンにＶ字形の切り込み、切り抜きまたは切り起こしを設け、段方向に隣接するそれぞれのの伝熱管の内部を流れる流体間で、フィンを通して熱伝導するのを抑制し、複数段での熱交換能力を効果的に向上させることができる。
【０００９】
さらに逆ハの字形の切り込みまたは切り抜きまたは切り起こしとすることにより、ヒートポンプ式空気調和機において熱交換器が蒸発器として使用される際に、凝縮水はＶ字形の切り込みまたは切り抜きまたは切り起こしに沿って流下するため熱交換器フィンの中央付近で水処理が可能となり、フィン外への凝縮水の飛び跳ねによる周囲の汚染を防止することが可能となる。
【００１０】
以下、本発明の実施の形態について図面を参照して説明する。
【００１１】
（実施の形態１）
以下、本発明の実施の形態１について、図１〜３を用いて説明する。
【００１２】
図１〜３は本発明の実施の形態１におけるフィン付き熱交換器の平面図である。図１に示すようにフィン１１に一定間隔でバーリングされたフィンカラー１２に伝熱管１３が挿入され、矢印方向に気体が流動する。
【００１３】
熱交換器が凝縮器として使用される場合の凝縮時過熱部伝熱管１４と段方向に隣接する伝熱管のフィンに逆ハの字形に切り込み２１または切り抜き２２または切り起し２３が形成されている。
【００１４】
（実施の形態２）
本発明の実施の形態２について、図４〜６を用いて説明する。
【００１５】
図４〜６は本発明の実施の形態２におけるフィン付き熱交換器の平面図である。熱交換器が凝縮器として使用される場合の凝縮時過熱部伝熱管１４と段方向に隣接する伝熱管のフィンにＶ字形の切り込み３１または切り抜き３２または切り起し３３が形成されている。
【００１６】
【発明の効果】
本発明のフィン付き熱交換器は上記説明から明らかなように、
（１）一定間隔で平行にならべられるとともに、その間を気体が流動するフィンと前記フィンに所定の段ピッチ列ピッチで直角に挿入され、内部を冷媒が通過する伝熱管から構成され、段方向に隣接する凝縮時過熱部における前記伝熱管の間の前記フィンに逆ハの字形に切り込み、切り抜きまたは切り起こしを設け、熱的に絶縁することにより、段方向に隣接するそれぞれのの伝熱管の内部を流れる流体間で、フィンを通して熱伝導するのを抑制し、複数段での熱交換能力を効果的に向上させることができる。
【００１７】
さらに、ヒートポンプ式空気調和機において熱交換器が蒸発器として使用される際に、凝縮水は逆ハの字形切り込み、切り抜きまたは切り起こしに沿って流下するため熱交換器フィンの中央付近で水処理が可能となり、フィン外への凝縮水の飛び跳ねによる周囲の汚染を防止することが可能となる。
（２）段方向に隣接する凝縮時過熱部における伝熱管の間のフィンにＶ字形の切り込み、切り抜きまたは切り起こしを設け、熱的に絶縁することにより、段方向に隣接するそれぞれの伝熱管の内部を流れる流体間で、フィンを通して熱伝導するのを抑制し、複数段での熱交換能力を効果的に向上させることができる。
【００１８】
さらに、ヒートポンプ式空気調和機において熱交換器が蒸発器として使用される際に、凝縮水はＶ字形切り込み、切り抜きまたは切り起こしに沿って流下するため熱交換器フィンの中央付近で水処理が可能となり、フィン外への凝縮水の飛び跳ねによる周囲の汚染を防止することが可能となる。
【図面の簡単な説明】
【図１】本発明の実施の形態１を示すフィン付き熱交換器の平面図
【図２】同熱交換器の平面図
【図３】同熱交換器の平面図
【図４】本発明の実施の形態２を示すフィン付き熱交換器の平面図
【図５】同熱交換器の平面図
【図６】同熱交換器の平面図[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a finned heat exchanger used in an air conditioner.
[0002]
[Prior art]
In order to improve the heat exchange capacity of the conventional heat exchanger with fins, as shown in FIG. 7 of Japanese Patent Laid-Open No. 63-183391, a heat exchanger having a plurality of cuts on both sides of the fin surface is used. It was.
[0003]
[Problems to be solved by the invention]
However, in the conventional finned heat exchanger, when there are multiple stages of heat transfer tubes and there is a temperature difference between the refrigerants flowing through the heat transfer tubes adjacent in the direction of the stage, there is a wide space between the fluids flowing through the heat transfer tubes. Heat is exchanged by heat conduction through fins having a surface area. For this reason, even if the heat exchanger with fins is used in a plurality of stages, there is a problem that the heat exchange capacity is not effectively improved.
[0004]
The present invention solves such a conventional problem, and even if it is used in a plurality of stages, it suppresses heat conduction through the fins between the fluids flowing inside the respective heat transfer tubes adjacent to each other in the stage direction. The purpose of this is to effectively improve the heat exchange capacity in
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the heat exchanger with fins of the present invention is (1) arranged in parallel at regular intervals, and inserted at right angles at a predetermined step pitch row pitch between the fins through which gas flows and the fins. Or a heat transfer tube through which the refrigerant passes, and the fins between the heat transfer tubes in the superheated part adjacent to the stepwise direction are provided with a reverse C-shaped cutout, cutout or cutout, or (2) V-shaped cutouts, cutouts or cutouts are provided in the fins between the heat transfer tubes of the superheated part at the time of condensation adjacent in the stage direction.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The finned heat exchanger of the present invention is (1) arranged in parallel at regular intervals, inserted between the fins through which gas flows and the fins at right angles at a predetermined step pitch row pitch, and the refrigerant passes through the fins. Each of the heat transfer tubes adjacent to each other in the step direction is provided with a cut-out or a cut-off in the fin between the heat transfer tubes in the superheated portion adjacent to the step direction. It is possible to suppress the heat conduction through the fins between the fluids flowing through the interior of the fluid, and to effectively improve the heat exchange capability in a plurality of stages.
[0007]
Furthermore, when the heat exchanger is used as an evaporator in a heat pump air conditioner, the condensate is cut or cut or raised in a reverse C shape. Therefore, it is possible to treat water near the center of the heat exchanger fins, and to prevent contamination of the surroundings due to jumping of condensed water to the outside of the fins.
[0008]
(2) V-shaped cutouts, cutouts or cutouts are provided in the fins between the heat transfer tubes in the condensing superheat section adjacent in the step direction, and between the fluids flowing inside the respective heat transfer tubes adjacent in the step direction It is possible to suppress heat conduction through the fins and to effectively improve the heat exchange capability in a plurality of stages.
[0009]
Furthermore, when the heat exchanger is used as an evaporator in a heat pump type air conditioner, the condensed water flows along the V-shaped notch, cutout or cut-out by forming a reverse-shaped cut-out or cut-out or cut-up. Therefore, it is possible to treat water near the center of the heat exchanger fins, and to prevent contamination of the surroundings due to the jumping of condensed water to the outside of the fins.
[0010]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS.
[0012]
1-3 is a top view of the heat exchanger with a fin in Embodiment 1 of this invention. As shown in FIG. 1, the heat transfer tube 13 is inserted into the fin collar 12 that is burred on the fin 11 at regular intervals, and the gas flows in the direction of the arrow.
[0013]
When the heat exchanger is used as a condenser, a notch 21 or a cut-out 22 or a cut-out 23 is formed in a reverse C-shape on the fin of the heat transfer tube adjacent to the superheater heat transfer tube 14 in the stage direction during condensation. .
[0014]
(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS.
[0015]
4-6 is a top view of the heat exchanger with a fin in Embodiment 2 of this invention. When the heat exchanger is used as a condenser, a V-shaped cutout 31, cutout 32, or cutout 33 is formed in the fin of the heat transfer tube adjacent to the superheater heat transfer tube 14 during condensation in the stage direction.
[0016]
【The invention's effect】
As is apparent from the above description, the finned heat exchanger of the present invention is
(1) It is composed of fins that are arranged in parallel at regular intervals, a gas flowing between them, and heat transfer tubes that are inserted at right angles to the fins at a predetermined step pitch row pitch and through which the refrigerant passes, The inside of each heat transfer tube adjacent to each other in the step direction is provided by cutting the fin between the heat transfer tubes in the adjacent superheated part at the time of condensation into a reverse C shape, providing a cut-out or raising, and thermally insulating the fins. It is possible to suppress heat conduction between the fluids flowing through the fins and effectively improve the heat exchange capability in a plurality of stages.
[0017]
Furthermore, when the heat exchanger is used as an evaporator in a heat pump air conditioner, the condensed water flows down along the reverse C-shaped cutout, cutout, or cut-up, so that water treatment is performed near the center of the heat exchanger fins. It becomes possible to prevent contamination of the surroundings due to the jumping of the condensed water outside the fins.
(2) V-shaped cutouts, cutouts or cutouts are provided in the fins between the heat transfer tubes adjacent to each other in the condensing superheated portion in the step direction, and thermally insulated, so that each heat transfer tube adjacent in the step direction It is possible to suppress heat conduction through the fins between the fluids flowing inside, and to effectively improve the heat exchange capability in a plurality of stages.
[0018]
Furthermore, when heat exchangers are used as evaporators in heat pump air conditioners, condensed water flows along V-shaped cuts, cut-outs or cuts, allowing water treatment near the center of the heat exchanger fins. Accordingly, it is possible to prevent the surrounding contamination due to the jumping of the condensed water to the outside of the fin.
[Brief description of the drawings]
FIG. 1 is a plan view of a finned heat exchanger showing Embodiment 1 of the present invention. FIG. 2 is a plan view of the heat exchanger. FIG. 3 is a plan view of the heat exchanger. Fig. 5 is a plan view of the heat exchanger with fins according to the second embodiment. Fig. 5 is a plan view of the heat exchanger. Fig. 6 is a plan view of the heat exchanger.

Claims (2)

一定間隔で平行にならべられるとともに、その間を気体が流動するフィンと前記フィンに所定の段ピッチ列ピッチで直角に挿入され、内部を冷媒が通過する伝熱管を有し、段方向に隣接する凝縮時過熱部における前記伝熱管の間の前記フィンに逆ハの字形に切り込み、切り抜きまたは切り起こしを設けた空気調和機用フィン付き熱交換器。Condensation that is arranged in parallel at regular intervals, and has a heat transfer tube through which a refrigerant flows and a fin flowing through the gas at right angles with a predetermined step pitch row pitch and through which the refrigerant passes, A heat exchanger with fins for an air conditioner, wherein the fins between the heat transfer tubes in the superheated portion are cut into a reverse C shape and cut or raised. 一定間隔で平行にならべられるとともに、その間を気体が流動するフィンと前記フィンに所定の段ピッチ列ピッチで直角に挿入され、内部を冷媒が通過する伝熱管を有し、段方向に隣接する凝縮時過熱部における前記伝熱管の間の前記フィンにＶ字形の切り込み、切り抜きまたは切り起こしを設けた空気調和機用フィン付き熱交換器。Condensation that is arranged in parallel at regular intervals, and has a heat transfer tube through which a refrigerant flows and a fin flowing through the gas at right angles with a predetermined step pitch row pitch and through which the refrigerant passes, A heat exchanger with fins for an air conditioner, wherein V-shaped cuts, cutouts or cuts are provided in the fins between the heat transfer tubes in the hourly superheater.
JP2002096517A 2002-03-29 2002-03-29 Finned heat exchanger for air conditioner Expired - Lifetime JP3838136B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002096517A JP3838136B2 (en) 2002-03-29 2002-03-29 Finned heat exchanger for air conditioner

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Application Number Priority Date Filing Date Title
JP2002096517A JP3838136B2 (en) 2002-03-29 2002-03-29 Finned heat exchanger for air conditioner

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JP3838136B2 true JP3838136B2 (en) 2006-10-25

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006038311A (en) * 2004-07-26 2006-02-09 Daikin Ind Ltd Fin-tube heat exchanger
JP5417718B2 (en) * 2007-03-07 2014-02-19 ダイキン工業株式会社 Heat exchanger
CN102419032A (en) * 2011-11-23 2012-04-18 海信科龙电器股份有限公司 Heat exchange fin for air-conditioner
CN107860254B (en) * 2017-12-23 2024-07-19 黄国和 Combined heat exchanger

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