JPH0835742A - Refrigerant evaporator - Google Patents
Refrigerant evaporatorInfo
- Publication number
- JPH0835742A JPH0835742A JP17389894A JP17389894A JPH0835742A JP H0835742 A JPH0835742 A JP H0835742A JP 17389894 A JP17389894 A JP 17389894A JP 17389894 A JP17389894 A JP 17389894A JP H0835742 A JPH0835742 A JP H0835742A
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- plate
- transfer fins
- drain water
- refrigerant evaporator
- 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.)
- Granted
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
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水平方向に設けられた
入口側分流器と出口側分流器との間で垂直方向に設けら
れた伝熱管と、この伝熱管の間に蛇行状に設けられたフ
ィンとからなる冷媒蒸発器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat transfer tube provided vertically between an inlet-side flow divider and an outlet-side flow divider provided in a horizontal direction, and provided in a meandering shape between the heat transfer pipes. The present invention relates to a refrigerant evaporator that includes a fin and a fin.
【０００２】[0002]
【従来の技術】従来の冷凍サイクルを構成しているよう
な冷媒蒸発器の一例を図５とともに説明する。従来の冷
媒蒸発器は図５に示すように、水平方向に設けられた気
液混合の冷媒を分流する入口側分流器１１と熱交換され
た冷媒を流出する出口側分流器１２との間で垂直方向に
設けられた伝熱管１３と、この伝熱管１３の間に蛇行状
に設けられたフィン１４とからなる。尚、１５は冷媒の
流入管、１６は冷媒の流出管、１７は上記フィン１４の
両側に設けられた仕切板である。2. Description of the Related Art An example of a refrigerant evaporator which constitutes a conventional refrigeration cycle will be described with reference to FIG. As shown in FIG. 5, a conventional refrigerant evaporator is provided between an inlet-side flow divider 11 that horizontally divides a gas-liquid mixed refrigerant and an outlet-side flow divider 12 that flows out heat-exchanged refrigerant. The heat transfer tube 13 is provided in a vertical direction, and the fins 14 are provided in a meandering shape between the heat transfer tube 13. Reference numeral 15 is a refrigerant inflow pipe, 16 is a refrigerant outflow pipe, and 17 is a partition plate provided on both sides of the fin 14.
【０００３】このような冷媒蒸発器であれば、その伝熱
管１３及び伝熱フィン１４上に結露によりドレン水が付
着する。このドレン水が伝熱フィン１４に表面張力によ
り停留すると送風ファンからの送風の通風抵抗となり、
熱交換に必要な充分な風量が得られず、熱交換効率を低
下させていた。In such a refrigerant evaporator, drain water adheres to the heat transfer tubes 13 and the heat transfer fins 14 due to dew condensation. When this drain water stays in the heat transfer fins 14 due to surface tension, it becomes ventilation resistance of the air blown from the air blower fan,
The sufficient air volume necessary for heat exchange was not obtained, and the heat exchange efficiency was reduced.
【０００４】このような冷媒蒸発器の熱交換効率を向上
させた冷媒蒸発器があった。この冷媒蒸発器を図６とと
もに説明すると、水平方向に設けられた気液混合の冷媒
を分流する入口側分流器と熱交換された冷媒を流出する
出口側分流器との間で垂直方向に設けられた伝熱管１８
と、この伝熱管１８の間に蛇行状に設けられた複数列の
伝熱フィン１９とからなり、該伝熱フィン１９の間に両
面に垂直方向に延びる排水用溝２０を備えた波状のプレ
ート２１を設けたものがあった。There is a refrigerant evaporator in which the heat exchange efficiency of such a refrigerant evaporator is improved. This refrigerant evaporator will be described with reference to FIG. 6. The refrigerant evaporator is provided in a vertical direction between an inlet-side flow divider that horizontally divides a gas-liquid mixed refrigerant and an outlet-side flow divider that flows out heat-exchanged refrigerant. Heat transfer tube 18
And a corrugated plate having a plurality of rows of heat transfer fins 19 arranged in a meandering shape between the heat transfer tubes 18, and a corrugated plate having drain grooves 20 vertically extending on both surfaces between the heat transfer fins 19. There was one that provided 21.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上記のような
構成の冷媒蒸発器は、波状のプレートを設けているので
この波状のプレートの溝の窪んでいる部分への風の流れ
が少なくなり、プレート上での熱交換率が低下する。ま
た、プレートが波状に形成されているので、送風ファン
からの送風の方向から見た場合、プレートの厚みが厚く
なり、通風抵抗が大きくなり送風量が低下して熱交換効
率が悪くなるという問題があった。そして、通風抵抗を
小さくするためにプレートの排水用溝の深さを小さくす
ると、伝熱フィンと波状のプレートとの接触部分におい
て、ドレン水がその表面張力により接触部分に停留して
しまうと、プレートの排水用溝がドレン水により塞がれ
てしまう虞れがあり、通風抵抗が増加してしまう虞れが
あった。However, since the refrigerant evaporator having the above-described structure is provided with the corrugated plate, the flow of air to the recessed portion of the groove of the corrugated plate is reduced, The heat exchange rate on the plate is reduced. Also, since the plate is formed in a wavy shape, when viewed from the direction of the air blow from the blower fan, the thickness of the plate becomes thicker, the ventilation resistance increases, the air flow rate decreases, and heat exchange efficiency deteriorates. was there. Then, if the depth of the drainage groove of the plate is reduced to reduce the ventilation resistance, in the contact portion between the heat transfer fin and the wavy plate, if the drain water stays at the contact portion due to its surface tension, There is a risk that the drainage groove of the plate may be blocked by the drain water, which may increase ventilation resistance.
【０００６】本発明の冷媒蒸発器は上記の問題に鑑みな
されたものであり、複数列の伝熱フィンのフィンの間に
多孔性のプレートを配設し、伝熱フィンで結露したドレ
ン水を効率よく下方へ流れ落ちるようにすることを目的
とするものである。The refrigerant evaporator of the present invention has been made in view of the above problems. A porous plate is arranged between the fins of a plurality of rows of heat transfer fins, and drain water condensed by the heat transfer fins is drained. The purpose is to make it efficiently flow downward.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
めに本発明の冷媒蒸発器は、水平方向に設けられた入口
側分流器と出口側分流器との間で垂直方向に設けられた
伝熱管と、この伝熱管の間に蛇行状に設けられたフィン
とからなる冷媒蒸発器において、上記フィンは、上記伝
熱管の間で垂直方向に延びる複数列の伝熱フィンと、こ
の複数列の伝熱フィンの間に配設された多孔性のプレー
トとからなる。また、上記プレートは平板状に形成さ
れ、該プレートの両側の平面部に上記伝熱フィンの折り
返し部分を当接している。In order to achieve the above object, the refrigerant evaporator of the present invention is provided in a vertical direction between an inlet-side flow divider and an outlet-side flow divider provided in a horizontal direction. In a refrigerant evaporator comprising heat transfer tubes and fins provided in a meandering shape between the heat transfer tubes, the fins include a plurality of rows of heat transfer fins extending in the vertical direction between the heat transfer tubes and the plurality of rows. And a porous plate disposed between the heat transfer fins. Further, the plate is formed in a flat plate shape, and the folded portions of the heat transfer fins are in contact with the flat portions on both sides of the plate.
【０００８】[0008]
【作用】上記構成の冷媒蒸発器は、伝熱フィンとプレー
トとの間に停留するドレン水を大幅に低減するととも
に、通風抵抗を低減する。また、プレートの多孔部分が
風の流路となり、熱交換効率を向上させ、しかも、伝熱
フィンとプレートとの総接触面積が増加し熱交換効率が
向上する。In the refrigerant evaporator having the above structure, the drain water staying between the heat transfer fins and the plate is greatly reduced and the ventilation resistance is reduced. In addition, the porous portion of the plate serves as a flow path for the wind to improve the heat exchange efficiency, and moreover, the total contact area between the heat transfer fins and the plate is increased to improve the heat exchange efficiency.
【０００９】[0009]
【実施例】本発明の冷媒蒸発器の第１実施例を図１及び
図２とともに説明する。本発明の冷媒蒸発器の第１実施
例は、水平方向に設けられた入口側分流器と出口側分流
器との間で垂直方向に設けられた伝熱管１と、この伝熱
管１の間に蛇行状に設けられた垂直方向に延びる複数列
（第１実施例においては２列）の伝熱フィン２と、この
複数列の伝熱フィン２の間に配設された多孔性のプレー
ト３とから形成されている。上記多孔性のプレート３は
網状に形成されており、４はその網状プレート３の網目
（孔）である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the refrigerant evaporator of the present invention will be described with reference to FIGS. The first embodiment of the refrigerant evaporator according to the present invention includes a heat transfer tube 1 provided vertically between an inlet side flow distributor and an outlet side flow distributor provided in a horizontal direction, and between the heat transfer tube 1. A plurality of rows (two rows in the first embodiment) of heat transfer fins 2 extending in the vertical direction, which are provided in a meandering shape, and a porous plate 3 arranged between the plurality of rows of heat transfer fins 2. Are formed from. The porous plate 3 is formed in a mesh shape, and 4 is a mesh (hole) of the mesh plate 3.
【００１０】上記構成の冷媒蒸発器は、結露により伝熱
フィン２にドレン水が付着すると、このドレン水は伝熱
フィン２の傾斜により網状プレート３側に流れる。この
網状プレート３側に流れたドレン水は網状プレート３の
網目４を伝って下方へ流れ、ドレン水が停留するのを防
止している。In the refrigerant evaporator having the above structure, when drain water adheres to the heat transfer fins 2 due to dew condensation, the drain water flows toward the mesh plate 3 side due to the inclination of the heat transfer fins 2. The drain water flowing to the mesh plate 3 side flows downward along the mesh 4 of the mesh plate 3 to prevent the drain water from staying.
【００１１】このように、ドレン水が停留することがな
いので、ドレン水が通風抵抗となることなく、しかも、
網状プレート３は送風方向から見た幅が薄く網状プレー
ト３により通風抵抗が増加することもなく、網状プレー
ト３の網目４が風の流路となり送風量が増加し熱交換効
率を向上させることができる。As described above, since the drain water does not stay, the drain water does not become a ventilation resistance, and moreover,
The mesh plate 3 has a small width when viewed from the air blowing direction, so that the mesh plate 3 does not increase the ventilation resistance, and the mesh 4 of the mesh plate 3 serves as a flow path for air flow to increase the air flow rate and improve the heat exchange efficiency. it can.
【００１２】次に、本発明の冷媒蒸発器の第２実施例を
図３とともに説明する。本発明の冷媒蒸発器の第２実施
例は、上記第１実施例とプレート以外の構成は同一で、
プレート５を平板状に形成し、この平板状プレート５に
パンチング等により多数の孔６を穿設して形成してい
る。そして、該プレート５の両側の平面部に上記伝熱フ
ィン２の折り返し部分を当接している。Next, a second embodiment of the refrigerant evaporator of the present invention will be described with reference to FIG. The second embodiment of the refrigerant evaporator of the present invention has the same configuration as the first embodiment except for the plate,
The plate 5 is formed in a flat plate shape, and a large number of holes 6 are formed in the flat plate plate 5 by punching or the like. The folded portions of the heat transfer fins 2 are in contact with the flat portions on both sides of the plate 5.
【００１３】上記構成の冷媒蒸発器は、結露により伝熱
フィン２にドレン水が付着すると、このドレン水は伝熱
フィン２の傾斜により平板状プレート５側に流れる。こ
の平板状プレート５側に流れたドレン水は平板状プレー
ト５の孔６を伝って下方へ流れ、ドレン水が停留するの
を防止している。In the refrigerant evaporator having the above structure, when the drain water adheres to the heat transfer fins 2 due to dew condensation, the drain water flows toward the flat plate 5 side due to the inclination of the heat transfer fins 2. The drain water flowing to the flat plate 5 side travels downward through the holes 6 of the flat plate 5 to prevent the drain water from staying.
【００１４】このように、ドレン水が停留することがな
いので、ドレン水が通風抵抗となることなく、しかも、
平板状プレート５は送風方向から見た幅が薄く平板状プ
レート５により通風抵抗が増加することもなく、平板状
プレート５の孔６が風の流路となり送風量が増加し熱交
換効率を向上させることができる。In this way, since the drain water does not stay, the drain water does not become a ventilation resistance, and moreover,
The flat plate 5 has a thin width when viewed from the blowing direction, and the ventilation resistance is not increased by the flat plate 5, and the holes 6 of the flat plate 5 serve as air flow passages to increase the blowing amount and improve the heat exchange efficiency. Can be made.
【００１５】また、伝熱フィン２と平板状プレート５と
の接触は従来の波状プレートと伝熱フィンとの接触のよ
うに点接触ではなく、その接触部分の接触状態は面接触
となり、伝熱フィン２と平板状プレート５との総接触面
積が増加し、平板状プレート５での熱交換効率も向上す
る。Further, the contact between the heat transfer fin 2 and the flat plate 5 is not a point contact like the contact between the conventional corrugated plate and the heat transfer fin, and the contact state of the contact portion is a surface contact, so that the heat transfer is performed. The total contact area between the fins 2 and the flat plate 5 increases, and the heat exchange efficiency of the flat plate 5 also improves.
【００１６】上記第１及び第２実施例においては、伝熱
フィン２を２列に設けているが、図４に示すように３列
に設けてもよく、伝熱フィン２を３列に設けることによ
り伝熱フィン２の密度が増加し、伝熱フィンでの熱交換
率が２列の伝熱フィンに比べ向上する。Although the heat transfer fins 2 are provided in two rows in the first and second embodiments, they may be provided in three rows as shown in FIG. 4, or the heat transfer fins 2 are provided in three rows. As a result, the density of the heat transfer fins 2 is increased, and the heat exchange rate in the heat transfer fins is improved as compared with the heat transfer fins in two rows.
【００１７】[0017]
【発明の効果】本発明の冷媒蒸発器は上記のような構成
により、結露により伝熱フィンに付着したドレン水は伝
熱フィンの傾斜により多孔性のプレート側に流れて多孔
性のプレートの孔を伝って下方へ流れ、ドレン水が停留
するのを防止しているので、ドレン水が停留することに
よる通風抵抗の増加がなく、しかも、多孔性のプレート
は送風方向から見た幅が薄く多孔性のプレートによる通
風抵抗も増加することなく、該多孔性のプレートの孔が
風の流路となり送風量が増加し熱交換効率を向上させる
ことができる。According to the refrigerant evaporator of the present invention, the drain water adhering to the heat transfer fins due to dew condensation flows toward the porous plate side due to the inclination of the heat transfer fins, and the holes of the porous plate The drain water is prevented from staying down and staying there.Therefore, there is no increase in ventilation resistance due to the stay of drain water, and the porous plate has a thin width when viewed from the blowing direction. The ventilation resistance of the porous plate does not increase, and the holes of the porous plate serve as air flow passages, increasing the amount of air blown and improving heat exchange efficiency.
【００１８】また、プレートを平板状に形成することに
より、伝熱フィンと平板状のプレートとの接触は従来の
波状プレートと伝熱フィンとの接触のように点接触では
なく、その接触部分の接触状態は面接触となり、伝熱フ
ィンと平板状プレートとの総接触面積が増加し、平板状
のプレートでの熱交換効率が向上する。Further, by forming the plate in a flat plate shape, the contact between the heat transfer fin and the flat plate is not point contact like the contact between the conventional corrugated plate and the heat transfer fin, but the contact portion The contact state becomes a surface contact, the total contact area between the heat transfer fins and the flat plate increases, and the heat exchange efficiency of the flat plate improves.
【図１】本発明の冷媒蒸発器の第１実施例を示す要部正
面図である。FIG. 1 is a front view of essential parts showing a first embodiment of a refrigerant evaporator of the present invention.
【図２】図１の網状プレート３の拡大正面図である。FIG. 2 is an enlarged front view of the mesh plate 3 shown in FIG.
【図３】本発明の冷媒蒸発器の第２実施例の平板状プレ
ート５の拡大斜視図である。FIG. 3 is an enlarged perspective view of a flat plate 5 of a second embodiment of the refrigerant evaporator of the present invention.
【図４】本発明の冷媒蒸発器の第３実施例を示す要部正
面図である。FIG. 4 is a main part front view showing a third embodiment of the refrigerant evaporator of the present invention.
【図５】従来の冷媒蒸発器の一例を示す正面図である。FIG. 5 is a front view showing an example of a conventional refrigerant evaporator.
【図６】図５の問題を改善した例を示す部分斜視図であ
る。FIG. 6 is a partial perspective view showing an example in which the problem of FIG. 5 is improved.
１ 伝熱管 ２ 伝熱フィン ３ 網状プレート ４ 網目 ５ 平板状プレート ６ 孔 1 heat transfer tube 2 heat transfer fins 3 mesh plate 4 mesh 5 flat plate plate 6 holes
Claims (2)
口側分流器との間で垂直方向に設けられた伝熱管と、こ
の伝熱管の間に蛇行状に設けられたフィンとからなる冷
媒蒸発器において、 上記フィンは、上記伝熱管の間で垂直方向に延びる複数
列の伝熱フィンと、 この複数列の伝熱フィンの間に配設された多孔性のプレ
ートとからなることを特徴とする冷媒蒸発器。1. A heat transfer tube provided vertically between an inlet-side flow divider and an outlet-side flow divider provided in a horizontal direction, and fins provided in a meandering shape between the heat transfer pipes. In the refrigerant evaporator, the fins are composed of a plurality of rows of heat transfer fins extending vertically between the heat transfer tubes, and a porous plate arranged between the plurality of rows of heat transfer fins. Characteristic refrigerant evaporator.
レートの両側の平面部に上記伝熱フィンの折り返し部分
を当接したことを特徴とする請求項１記載の冷媒蒸発
器。2. The refrigerant evaporator according to claim 1, wherein the plate is formed in a flat plate shape, and the folded portions of the heat transfer fins are in contact with the flat portions on both sides of the plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06173898A JP3074113B2 (en) | 1994-07-26 | 1994-07-26 | Refrigerant evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06173898A JP3074113B2 (en) | 1994-07-26 | 1994-07-26 | Refrigerant evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0835742A true JPH0835742A (en) | 1996-02-06 |
| JP3074113B2 JP3074113B2 (en) | 2000-08-07 |
Family
ID=15969136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06173898A Expired - Fee Related JP3074113B2 (en) | 1994-07-26 | 1994-07-26 | Refrigerant evaporator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3074113B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2770898A1 (en) * | 1997-11-10 | 1999-05-14 | Valeo Climatisation | Condensate trap for vehicle air-conditioner evaporator |
| US6435268B1 (en) | 2001-05-10 | 2002-08-20 | Delphi Technologies, Inc. | Evaporator with improved condensate drainage |
| KR100912914B1 (en) * | 2007-10-08 | 2009-08-20 | 박천표 | Evaporator |
-
1994
- 1994-07-26 JP JP06173898A patent/JP3074113B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2770898A1 (en) * | 1997-11-10 | 1999-05-14 | Valeo Climatisation | Condensate trap for vehicle air-conditioner evaporator |
| US6435268B1 (en) | 2001-05-10 | 2002-08-20 | Delphi Technologies, Inc. | Evaporator with improved condensate drainage |
| KR100912914B1 (en) * | 2007-10-08 | 2009-08-20 | 박천표 | Evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3074113B2 (en) | 2000-08-07 |
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