JPH0525173U - Air heat exchanger - Google Patents
Air heat exchangerInfo
- Publication number
- JPH0525173U JPH0525173U JP073147U JP7314791U JPH0525173U JP H0525173 U JPH0525173 U JP H0525173U JP 073147 U JP073147 U JP 073147U JP 7314791 U JP7314791 U JP 7314791U JP H0525173 U JPH0525173 U JP H0525173U
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- transfer tube
- heat exchanger
- plate fin
- fin
- 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.)
- Withdrawn
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
- F28F1/02—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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
-
- 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
- F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow 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
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/02—Streamline-shaped elements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
(57)【要約】
【目的】 空気熱交換器において、冷媒によって伝熱管
上に発生する凝縮水の露とびの発生を抑制する。
【構成】 垂直に配置した複数列の微細な縦溝を有する
プレートフィン２に貫通穴を設け、断面形状が上面が非
偏平の伝熱管２を水平配置となるように前記貫通穴に挿
入し、プレートフィン２と伝熱管１を一体接合するよう
にした。
(57) [Abstract] [Purpose] In an air heat exchanger, suppresses the dew drop of condensed water generated on the heat transfer tube by the refrigerant. [Structure] A through hole is provided in a plate fin 2 having vertically arranged plural vertical grooves, and a heat transfer tube 2 having a flat cross section is inserted into the through hole so as to be horizontally arranged. The plate fin 2 and the heat transfer tube 1 are integrally joined.
Description
【０００１】[0001]
本考案は、空気調和機等の熱交換器の改良に関する。 The present invention relates to improvement of a heat exchanger such as an air conditioner.
【０００２】[0002]
図９は従来の空気熱交換器の斜視図である。図において、１１は伝熱管、１２ は同伝熱管の間に、真空ろう付けなどによって、一体接合されているコルゲート フィン、１３はヘッダ管、白抜き矢印は空気流である。この熱交換器は、カーエ アコン用熱交換器に多用されているオールアルミ熱交換器の一例であるが、伝熱 管１１は断面が偏平長円である。 FIG. 9 is a perspective view of a conventional air heat exchanger. In the figure, 11 is a heat transfer tube, 12 is a corrugated fin integrally joined between the heat transfer tubes by vacuum brazing, 13 is a header tube, and a hollow arrow is an air flow. This heat exchanger is an example of an all-aluminum heat exchanger often used as a heat exchanger for car air conditioners, but the heat transfer tube 11 has a flat elliptical cross section.
【０００３】 前記の伝熱管１１内には冷媒が流れ、管外の空気と熱交換を行うが、伝熱管１ １を水平配置した場合、伝熱管１１上面に凝縮水が溜まり、空気流速が高風速と なった時露とびを起こす不具合を生じ易い。Refrigerant flows in the heat transfer tube 11 and exchanges heat with the air outside the tube. However, when the heat transfer tube 11 is horizontally arranged, condensed water is accumulated on the upper surface of the heat transfer tube 11 and the air flow velocity is high. Problems such as dew jumping tend to occur when the wind speed becomes high.
【０００４】[0004]
前記の従来の熱交換器の伝熱管１１は断面形状が偏平管となっているので、前 記のように、伝熱管１１を水平置きとした場合、偏平管上部に凝縮水が溜まり、 露とびの原因となっていた。 Since the heat transfer tube 11 of the above conventional heat exchanger has a flat cross section, when the heat transfer tube 11 is placed horizontally as described above, condensed water accumulates on the upper part of the flat tube to cause dew condensation. Was the cause of.
【０００５】 本考案は、以上の問題点を解決することができる熱交換器を提供しょうとする ものである。The present invention is intended to provide a heat exchanger capable of solving the above problems.
【０００６】[0006]
本考案の空気熱交換器は、垂直に配置した複数列の微細な縦溝を有するプレー トフィンに貫通穴を設け、断面形状が上面が非偏平の伝熱管を水平配置となるよ うに貫通穴に挿入し、前記プレートフィンと前記伝熱管を一体接合するようにし た。 The air heat exchanger of the present invention is provided with through holes in the plate fin having vertically arranged fine vertical grooves in multiple rows, and the heat transfer tubes whose cross-sectional shape is not flat are arranged horizontally in the through holes. Then, the plate fin and the heat transfer tube were integrally joined.
【０００７】[0007]
本考案は、前記構成を具えていて、伝熱管の断面形状を上面が非偏平にしたこ とにより、重力の作用により、凝縮水が伝熱管表面上を伝って自然流下する。そ して、伝熱管端部に集まった凝縮水はプレートフィン表面に刻まれた微細な溝の 表面張力の作用により、プレートフィンの方に吸引されプレートフィンを伝って 下方へ流下する。 According to the present invention, the heat transfer tube has the above-mentioned configuration and the cross-sectional shape of the heat transfer tube is made non-flat so that the condensed water naturally flows down on the surface of the heat transfer tube by the action of gravity. Then, the condensed water collected at the end of the heat transfer tube is sucked toward the plate fins by the surface tension of the fine grooves carved on the plate fin surface and flows downward along the plate fins.
【０００８】[0008]
本考案の一実施例に係る空気熱交換器を図１ないし図６によって説明する。１ は冷媒が管内を流れ管外の空気を冷却する伝熱管、２はプレートフィンである。 プレートフィン２は片面にろう材をコーティングしたクラッド材を用い、伝熱管 １断面形状と同一の形状の複数の貫通穴を開け、伝熱管１を水平配置となるよう に貫通穴に挿入真空ろう付等の加工法により一体ろう付を行う。 An air heat exchanger according to an embodiment of the present invention will be described with reference to FIGS. Reference numeral 1 is a heat transfer tube through which a refrigerant flows inside the tube to cool air outside the tube, and 2 is a plate fin. The plate fin 2 is made of a clad material coated on one side with a brazing material, and a plurality of through holes having the same shape as the cross section of the heat transfer tube 1 are opened, and the heat transfer tube 1 is inserted into the through hole so as to be horizontally arranged. Vacuum brazing Integral brazing is performed by such processing methods.
【０００９】 プレートフィン２の断面は、図６に示すように微細な複数の三角溝２ａを刻ん だもので、この三角溝２ａは、図６の断面に対して垂直方向に延びて縦溝を形成 する。フィンパターンは、図６に示すようにスリットが無いものに限られず、オ フセットフィン、ルーバフィン等の適宜スリットを刻んだものであってもよい。As shown in FIG. 6, the cross section of the plate fin 2 is formed by engraving a plurality of fine triangular grooves 2 a. The triangular grooves 2 a extend in a direction perpendicular to the cross section of FIG. Form. The fin pattern is not limited to the one having no slit as shown in FIG. 6, and may be an appropriate fin such as an offset fin or a louver fin.
【００１０】 伝熱管１の断面形状は、図１に示すひし形、図２に示すだ円形、図３に示す円 管形、図４に示すくさび形、図５に示す翼形等上面が非偏平な形状のものが採用 される。The cross-sectional shape of the heat transfer tube 1 is a rhombus shown in FIG. 1, an ellipse shown in FIG. 2, a circular tube shape shown in FIG. 3, a wedge shape shown in FIG. 4, an airfoil shown in FIG. The shape is adopted.
【００１１】 図７は本実施例の工法に関する説明図である。貫通穴を開けた複数列のプレー トフィン２を垂直に配置し、伝熱管１を水平に挿入した後、フィンピッチＰｆを 規制するため、スペーサ３をプレートフィン２間に配置し、その後真空炉内でろ う付を行う。スペーサ３の材質は、ろう付時に溶融して残存しないものを採用す る。FIG. 7 is an explanatory diagram related to the construction method of this embodiment. After arranging a plurality of rows of plate fins 2 with through holes vertically and inserting the heat transfer tube 1 horizontally, in order to regulate the fin pitch Pf, spacers 3 are arranged between the plate fins 2 and then in the vacuum furnace. Make a stick. The material of the spacer 3 is selected so that it does not melt and remain during brazing.
【００１２】 以上のように構成された本実施例では、伝熱管１の断面形状をひし形１、だ円 １ａ，１ｂ、くさび形１ｃ、翼形１ｄ等の上面が非偏平の形状としたヽめに、伝 熱管１内の冷媒によって冷却される空気より発生する凝縮水が重力の作用により 、自然に伝熱管１の表面を伝って流れ落ちる。In the present embodiment configured as described above, the cross-sectional shape of the heat transfer tube 1 is a rhombus 1, an ellipse 1a, 1b, a wedge shape 1c, an airfoil 1d, etc., whose upper surface is a non-flat shape. In addition, the condensed water generated from the air cooled by the refrigerant in the heat transfer tube 1 naturally flows down the surface of the heat transfer tube 1 due to the action of gravity.
【００１３】 一方、プレートフィンを微細な縦溝を有するプレートフィン２とし、プレート フィン２に伝熱管１を貫通させるための貫通穴を開け、両者を一体接合すること により、プレートフィン２の表面に刻まれた微細な溝の表面張力の効果により、 伝熱管１端部に溜った凝縮水はプレートフィン２に吸引され、重力の作用により 、プレートフィン２に付着した凝縮水はプレートフィン２の縦溝を通って同プレ ートフィンの上部から下部へ流下する。On the other hand, a plate fin 2 having fine vertical grooves is used as the plate fin, a through hole is formed in the plate fin 2 for penetrating the heat transfer tube 1, and the both are integrally joined to each other to form a plate fin 2 on the surface. The condensed water accumulated at the end of the heat transfer tube 1 is sucked by the plate fins 2 due to the effect of the surface tension of the minute grooves carved, and the condensed water adhered to the plate fins 2 is vertically moved by the action of gravity. It flows down from the upper part of the plate fin to the lower part through the groove.
【００１４】 このようにして、本実施例では伝熱管１の上面に凝縮水が溜ることがなく、従 って、凝縮水が空気流によって露とびを起こすことが防止される。In this way, in this embodiment, the condensed water does not collect on the upper surface of the heat transfer tube 1, and accordingly, the condensed water is prevented from being dewed by the air flow.
【００１５】 図８に、本実施例と従来の空気熱交換器における前面面積当たりの露とび量に 対する前面風速の関係を、それぞれ実線と点線で示す。同図１０には、本実施例 においては露とび量が著しく低下していることが示されている。FIG. 8 shows the relationship of the front wind speed with respect to the amount of dew per unit front area in the present embodiment and the conventional air heat exchanger by a solid line and a dotted line, respectively. In FIG. 10, it is shown that the exposed amount is remarkably reduced in this embodiment.
【００１６】[0016]
本考案は、複数列の微細な縦溝を有するプレートフィンに貫通穴を設け、断面 形状が上面が非偏平の伝熱管を水平配置となるように前記貫通穴に挿入し、プレ ートフィンと伝熱管と一体接合するようにしたヽめに、凝縮水が伝熱管の上面に 溜ることがなく、空気流による露とびの発生を抑制することができる。 According to the present invention, a plate fin having a plurality of rows of fine vertical grooves is provided with through holes, and a heat transfer tube whose cross-sectional shape is non-flat is inserted into the through holes so that the plate fin and the heat transfer tube are horizontally arranged. Since it is integrally joined to the heat transfer tube, condensed water does not collect on the upper surface of the heat transfer tube, and the occurrence of dew drop due to the air flow can be suppressed.
【図１】本考案の一実施例に係る熱交換器の斜視図であ
る。FIG. 1 is a perspective view of a heat exchanger according to an embodiment of the present invention.
【図２】同実施例における伝熱管の１形状を示す斜視図
である。FIG. 2 is a perspective view showing one shape of a heat transfer tube in the embodiment.
【図３】同実施例における伝熱管の他の形状を示す斜視
図である。FIG. 3 is a perspective view showing another shape of the heat transfer tube in the embodiment.
【図４】同実施例における伝熱管の他の形状を示す断面
図である。FIG. 4 is a sectional view showing another shape of the heat transfer tube in the embodiment.
【図５】同実施例における伝熱管の更に他の形状を示す
断面図である。FIG. 5 is a cross-sectional view showing still another shape of the heat transfer tube in the same embodiment.
【図６】図１のＡ−Ａ断面図である。6 is a cross-sectional view taken along the line AA of FIG.
【図７】本実施例の工法の説明図である。FIG. 7 is an explanatory diagram of a construction method according to this embodiment.
【図８】露とび量と前面風速の関係を示すグラフであ
る。FIG. 8 is a graph showing the relationship between the amount of dew condensation and the front wind speed.
【図９】従来の熱交換器の斜視図である。FIG. 9 is a perspective view of a conventional heat exchanger.
１，１ａ，１ｂ，１ｃ，１ｄ 伝熱管 ２ プレートフィン ２ａ プレートフィン２の三角
溝1, 1a, 1b, 1c, 1d Heat transfer tube 2 Plate fin 2a Triangular groove of plate fin 2
Claims (1)
するプレートフィンに貫通穴を設け、断面形状が上面が
非偏平の伝熱管を水平配置となるように前記貫通穴に挿
入し、前記プレートフィンと前記伝熱管を一体接合する
ようにしたことを特徴とする空気熱交換器。1. A through-hole is provided in a plate fin having vertically arranged plural vertical grooves, and a heat transfer tube whose cross-sectional shape is not flat is inserted into the through-hole so as to be horizontally arranged. An air heat exchanger characterized in that the plate fins and the heat transfer tubes are integrally joined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP073147U JPH0525173U (en) | 1991-09-11 | 1991-09-11 | Air heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP073147U JPH0525173U (en) | 1991-09-11 | 1991-09-11 | Air heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0525173U true JPH0525173U (en) | 1993-04-02 |
Family
ID=13509798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP073147U Withdrawn JPH0525173U (en) | 1991-09-11 | 1991-09-11 | Air heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0525173U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003287390A (en) * | 2002-03-27 | 2003-10-10 | Mitsubishi Electric Corp | Heat exchanger and air conditioner using this heat exchanger |
| JP2011153823A (en) * | 2008-04-24 | 2011-08-11 | Mitsubishi Electric Corp | Heat exchanger and air conditioner using the same |
| JP2016176646A (en) * | 2015-03-20 | 2016-10-06 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Outdoor unit of air conditioner |
| 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 |
| WO2018003091A1 (en) * | 2016-06-30 | 2018-01-04 | 三菱電機株式会社 | Heat exchanger and refrigeration cycle apparatus provided with same |
| CN109579594A (en) * | 2017-09-29 | 2019-04-05 | 杭州三花微通道换热器有限公司 | Heat exchanger core body and air conditioner with it |
-
1991
- 1991-09-11 JP JP073147U patent/JPH0525173U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003287390A (en) * | 2002-03-27 | 2003-10-10 | Mitsubishi Electric Corp | Heat exchanger and air conditioner using this heat exchanger |
| JP2011153823A (en) * | 2008-04-24 | 2011-08-11 | Mitsubishi Electric Corp | Heat exchanger and air conditioner using the same |
| JP2016176646A (en) * | 2015-03-20 | 2016-10-06 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Outdoor unit of air conditioner |
| 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 |
| WO2018003091A1 (en) * | 2016-06-30 | 2018-01-04 | 三菱電機株式会社 | Heat exchanger and refrigeration cycle apparatus provided with same |
| CN109579594A (en) * | 2017-09-29 | 2019-04-05 | 杭州三花微通道换热器有限公司 | Heat exchanger core body and air conditioner with it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5678392B2 (en) | Corrugated fin heat exchanger drainage structure | |
| EP2410266B1 (en) | Drainage structure of corrugated fin-type heat exchanger | |
| WO2013183136A1 (en) | Air heat exchanger | |
| JP5550106B2 (en) | Corrugated fin heat exchanger drainage structure | |
| WO2013157212A1 (en) | Fin-tube heat exchanger | |
| JP2010139166A (en) | Air conditioner | |
| JPH0525173U (en) | Air heat exchanger | |
| CN110030865B (en) | Fin and heat exchanger with same | |
| JPS5995359A (en) | Evaporator | |
| JPH02251093A (en) | Finned heat exchanger | |
| JP2012251719A (en) | Drainage structure of corrugated fin type heat exchanger | |
| JPH0545474U (en) | Heat exchanger | |
| JPH03181759A (en) | Refrigerant evaporator | |
| JP2012083070A (en) | Drainage structure of corrugated fin-type heat exchanger | |
| JPH1123179A (en) | Heat exchanger with fin | |
| JP3268422B2 (en) | Fin tube heat exchanger | |
| JPH05180533A (en) | Dew drop water discharge device in evaporator | |
| JPH0886581A (en) | Cross-fin tube type heat exchanger | |
| JPH025327Y2 (en) | ||
| JPS58158497A (en) | Finned-tube type heat exchanger | |
| JPH0325100Y2 (en) | ||
| JP3863034B2 (en) | Heat exchanger | |
| JP3304270B2 (en) | Fin and tube heat exchanger | |
| JPH10332291A (en) | Fin and tube type heat-exchanger | |
| JPH025331Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19951130 |