JP3003859B1 - Heat exchange coil for air conditioner - Google Patents
Heat exchange coil for air conditionerInfo
- Publication number
- JP3003859B1 JP3003859B1 JP11024702A JP2470299A JP3003859B1 JP 3003859 B1 JP3003859 B1 JP 3003859B1 JP 11024702 A JP11024702 A JP 11024702A JP 2470299 A JP2470299 A JP 2470299A JP 3003859 B1 JP3003859 B1 JP 3003859B1
- Authority
- JP
- Japan
- Prior art keywords
- divided
- heat
- heat transfer
- heat exchange
- exchange coil
- 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.)
- Expired - Fee Related
Links
Landscapes
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
【要約】
【目的】 熱交換効率を最大限に引き出すことができ、
配管及び組立が容易な熱交換コイルを得る。
【構成】 フィン群を半周にて分割し、その一方の分割
間隙部と他方の分割間隙部に夫々ヘッダ3を1本ずつ対
向状に設ける。一対の分割フィン群1、1に別個に伝熱
管2を挿着し、両ヘッダ3、3と各伝熱管2を並列状に
連通連結して熱媒が分流するように構成する。[Summary] [Purpose] To maximize the heat exchange efficiency,
Obtain a heat exchange coil that is easy to pipe and assemble. A fin group is divided in a half circumference, and a header 3 is provided one by one in each of one divided gap and the other divided gap. The heat transfer tubes 2 are separately inserted into the pair of divided fin groups 1 and 1, and the headers 3 and 3 and the respective heat transfer tubes 2 are connected and connected in parallel so that the heat medium is divided.
Description
【0001】[0001]
【産業上の利用分野】本発明は、空気調和機用熱交換コ
イル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 exchange coil for an air conditioner.
【0002】[0002]
【従来の技術】四方向吹出形ファンコイルユニットなど
の空気調和機用熱交換コイルは、従来、図5に示すよう
に、コイル全体が環状で、熱媒がコイル全体を一周する
ように伝熱管を設けていた。2. Description of the Related Art Conventionally, as shown in FIG. 5, a heat exchange coil for an air conditioner such as a four-way blowout fan coil unit has a heat transfer tube in which the entire coil is annular and a heat medium surrounds the entire coil. Was provided.
【0003】ところが、このような構造では熱媒流路が
長くなり、コイルの熱交換効率が悪く、伝熱管有効長や
熱媒流速、フロー数の選択肢が限られて、コイルの熱交
換効率を最大限に引き出すことができず、無駄が多かっ
た。However, in such a structure, the heat medium flow path becomes long and the heat exchange efficiency of the coil is poor, and the options of the effective length of the heat transfer tube, the flow rate of the heat medium, and the number of flows are limited. It couldn't be pulled out to the maximum and was wasteful.
【0004】[0004]
【課題を解決するための手段】そこで上記問題を解決す
るために、本発明は、全体が略環状を成す熱交換コイル
であって、フィン群を半周にて分割し、その一方の分割
間隙部と他方の分割間隙部に夫々ヘッダを1本ずつ対向
状に設けると共に一対の分割フィン群に別個に伝熱管を
挿着し、上記両ヘッダと上記各伝熱管を並列状に連通連
結して熱媒が分流するように構成した。さらに、伝熱管
を楕円管とした。In order to solve the above-mentioned problems, the present invention relates to a heat exchange coil having a substantially annular shape, in which a fin group is divided by a half circumference, and one of the divided gap portions is provided. A header is provided one by one in the other divided gap portion and opposed to each other, and a heat transfer tube is separately inserted into a pair of divided fin groups. The medium was configured to diverge. Further, the heat transfer tube was an elliptic tube.
【0005】[0005]
【実施例】図1は、本発明の空気調和機用熱交換コイル
を例示し、この熱交換コイルは、全体が略環状を成すも
のであって、フィン群を半周にて分割し、その一方の分
割間隙部と他方の分割間隙部に夫々ヘッダ3を1本ずつ
対向状に設けると共に一対の分割フィン群1、1に別個
に伝熱管2を挿着し、上記両ヘッダ3、3と上記各伝熱
管2を並列状に連通連結して熱媒が分流するように構成
する。図3と図4は本発明の熱交換コイルを用いた空調
機を例示している。FIG. 1 illustrates a heat exchange coil for an air conditioner according to the present invention. The heat exchange coil has a substantially annular shape as a whole, and a fin group is divided by a half circumference. The header 3 is provided one by one in each of the divided gap portion and the other divided gap portion, and the heat transfer tubes 2 are separately inserted into the pair of divided fin groups 1, 1. The heat transfer tubes 2 are connected and connected in parallel so that the heat medium is divided. 3 and 4 illustrate an air conditioner using the heat exchange coil of the present invention.
【0006】図1のように、分割フィン群1は、多数の
プレートフィン4,4…を並設して成る。伝熱管2は、
複数列であって列方向(通風方向A)に蛇行させてカウ
ンターフローとなるように形成すると共に、図1と図2
のように伝熱管2は複数段設け、各分割フィン群1の各
段の伝熱管風下側開口端部同士を熱媒入口側ヘッダ3に
接続しかつ各分割フィン群1の各段の伝熱管風上側開口
端部同士を熱媒出口側ヘッダ3に接続し、熱交換効率を
最良にする。熱媒は、ヘッダ3、3の一方から入って他
方へ出るが、その間に伝熱管2の内部を通り、この伝熱
管2及び分割フィン群1を介して、コイル通風空気が、
熱媒の熱と熱交換されて、冷風又は暖風となる。符号A
で示す矢印は図示省略の送風機による通風方向を示して
いる。As shown in FIG. 1, a divided fin group 1 is composed of a number of plate fins 4, 4. The heat transfer tube 2
A plurality of rows are formed so as to meander in the row direction (ventilation direction A) so as to have a counter flow.
The heat transfer tubes 2 are provided in a plurality of stages, the leeward opening ends of the heat transfer tubes of each stage of each split fin group 1 are connected to the heat medium inlet side header 3, and the heat transfer tubes of each stage of each split fin group 1 The windward open ends are connected to the heat medium outlet side header 3 to optimize the heat exchange efficiency. The heat medium enters from one of the headers 3 and exits to the other. Meanwhile, the heat medium passes through the inside of the heat transfer tube 2, and through this heat transfer tube 2 and the divided fin group 1, the coil ventilation air is
The heat is exchanged with the heat of the heat medium, and the air becomes cold wind or warm wind. Sign A
The arrow indicated by indicates the ventilation direction of the blower (not shown).
【0007】図2に示すように、伝熱管2は、径方向切
断面が楕円形の楕円管に形成し、この伝熱管2の楕円長
軸を通風方向Aと略平行にする。このように伝熱管2の
断面を形状抗力の小さい楕円形にしてあるので、円形伝
熱管の場合よりも、通風抵抗が小さくて圧力損失が減少
し、伝熱管2における空気流との接触面積(伝熱面積)
が増加し、加えて、カウンターフローとすることによ
り、伝熱量・交換熱量がアップする。本発明において、
楕円長軸とは楕円の長径の両端点(頂点)を通る直線を
いう。As shown in FIG. 2, the heat transfer tube 2 is formed into an elliptic tube having a radially cut surface in an elliptical shape, and the long axis of the ellipse of the heat transfer tube 2 is made substantially parallel to the ventilation direction A. Since the cross section of the heat transfer tube 2 is formed in an elliptical shape having a small shape drag, the ventilation resistance is smaller and the pressure loss is reduced as compared with the case of the circular heat transfer tube, and the contact area of the heat transfer tube 2 with the air flow ( (Heat transfer area)
And the amount of heat transfer / exchanged heat is increased by using a counter flow. In the present invention,
The major axis of the ellipse is a straight line that passes through both end points (vertexes) of the major axis of the ellipse.
【0008】なお、図1における一点鎖線の矢印は熱媒
の流れる方向を示しているが、熱媒流通方向の変更は自
由である。また、伝熱管2の段数や列数の増減、あるい
はシングルやダブルなどフロー数の変更は自由で、コイ
ル全体が略角環状となっているがこれ以外であってもよ
い。Although the dashed line arrow in FIG. 1 indicates the direction in which the heat medium flows, the direction in which the heat medium flows can be freely changed. Further, the number of stages and rows of the heat transfer tubes 2 can be increased or decreased, or the number of flows such as single or double can be freely changed, and the entire coil is formed in a substantially rectangular ring shape.
【0009】[0009]
【発明の効果】請求項1の発明では、従来と同列数の熱
交換コイルと比べて、伝熱管有効長や熱媒流速、フロー
数の選択の幅が広がり、コイルの熱交換効率を無駄なく
最大限に引き出すことができる。例えば、コイル全体の
熱媒流量が従来と同一の場合にはコイル能力がアップ
し、従来と同一能力の場合にはコイルのコンパクト化が
可能になり、ポンプのランニングコストを低減できる。
局部的な熱交換ムラがなくなり、コイル全体で均一に熱
交換できる。ヘッダ3が2本で別々の所にあるので、設
置スペースが広くて配管及び組立が容易であり、コスト
削減を図れ、コイルの大型化を防止できる。請求項2の
発明では、圧力損失が減少し伝熱量・交換熱量が向上す
る。According to the first aspect of the present invention, the effective length of the heat transfer tube, the flow rate of the heat medium, and the number of flows can be broadened, and the heat exchange efficiency of the coil can be reduced without wasting as compared with the conventional heat exchange coils having the same number of rows. You can get the most out of it. For example, when the heat medium flow rate of the entire coil is the same as the conventional one, the coil capacity is increased, and when the heat medium flow rate is the same as the conventional one, the coil can be made compact and the running cost of the pump can be reduced.
Local heat exchange unevenness is eliminated, and heat can be uniformly exchanged throughout the coil. Since the two headers 3 are provided at different places, the installation space is large, the piping and assembly are easy, the cost can be reduced, and the coil can be prevented from becoming large. According to the second aspect of the invention, the pressure loss is reduced, and the heat transfer and exchange heat are improved.
【図1】本発明の熱交換コイルの一実施例を示す簡略平
面図である。FIG. 1 is a simplified plan view showing one embodiment of a heat exchange coil of the present invention.
【図2】図1のX−X線の断面図である。FIG. 2 is a sectional view taken along line XX of FIG.
【図3】本発明を用いた空調機の斜視図である。FIG. 3 is a perspective view of an air conditioner using the present invention.
【図4】図3の断面図である。FIG. 4 is a sectional view of FIG. 3;
【図5】従来例を示す簡略平面図である。FIG. 5 is a simplified plan view showing a conventional example.
1 分割フィン群 2 伝熱管 3 ヘッダ A 通風方向 1 split fin group 2 heat transfer tube 3 header A ventilation direction
Claims (2)
て、フィン群を半周にて分割し、その一方の分割間隙部
と他方の分割間隙部に夫々ヘッダ3を1本ずつ対向状に
設けると共に一対の分割フィン群1、1に別個に伝熱管
2を挿着し、上記両ヘッダ3、3と上記各伝熱管2を並
列状に連通連結して熱媒が分流するように構成したこと
を特徴とする空気調和機用熱交換コイル。1. A heat exchange coil having a substantially annular shape as a whole, in which a fin group is divided by a half circumference, and one header 3 is opposed to each of one divided gap portion and the other divided gap portion. The heat transfer tubes 2 are separately inserted into the pair of divided fin groups 1 and 1 and the headers 3 and 3 and the heat transfer tubes 2 are connected and connected in parallel to divide the heat medium. A heat exchange coil for an air conditioner, comprising:
空気調和機用熱交換コイル。2. The heat exchange coil for an air conditioner according to claim 1, wherein the heat transfer tube 2 is an elliptic tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11024702A JP3003859B1 (en) | 1999-02-02 | 1999-02-02 | Heat exchange coil for air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11024702A JP3003859B1 (en) | 1999-02-02 | 1999-02-02 | Heat exchange coil for air conditioner |
Publications (2)
Publication Number | Publication Date |
---|---|
JP3003859B1 true JP3003859B1 (en) | 2000-01-31 |
JP2000227230A JP2000227230A (en) | 2000-08-15 |
Family
ID=12145523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11024702A Expired - Fee Related JP3003859B1 (en) | 1999-02-02 | 1999-02-02 | Heat exchange coil for air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3003859B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108443962A (en) * | 2018-02-09 | 2018-08-24 | 青岛海尔空调器有限总公司 | Heat exchanger for annular air conditioner indoor unit and annular air conditioner indoor unit |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010078287A (en) * | 2008-09-29 | 2010-04-08 | Mitsubishi Electric Corp | Air conditioner |
TR201905263T4 (en) * | 2009-06-19 | 2019-05-21 | Daikin Ind Ltd | Ceiling mounted air conditioner. |
KR101469459B1 (en) * | 2014-07-01 | 2014-12-08 | 주식회사 신진에너텍 | Heat pump system using complex heat sources and its controlling process |
JP7050538B2 (en) * | 2018-03-15 | 2022-04-08 | 三菱電機株式会社 | Heat exchanger and air conditioner |
-
1999
- 1999-02-02 JP JP11024702A patent/JP3003859B1/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108443962A (en) * | 2018-02-09 | 2018-08-24 | 青岛海尔空调器有限总公司 | Heat exchanger for annular air conditioner indoor unit and annular air conditioner indoor unit |
CN108443962B (en) * | 2018-02-09 | 2024-02-23 | 青岛海尔空调器有限总公司 | Heat exchanger for annular air conditioner indoor unit and annular air conditioner indoor unit |
Also Published As
Publication number | Publication date |
---|---|
JP2000227230A (en) | 2000-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |