JP3407474B2 - Heat exchanger manufacturing method - Google Patents
Heat exchanger manufacturing methodInfo
- Publication number
- JP3407474B2 JP3407474B2 JP12504595A JP12504595A JP3407474B2 JP 3407474 B2 JP3407474 B2 JP 3407474B2 JP 12504595 A JP12504595 A JP 12504595A JP 12504595 A JP12504595 A JP 12504595A JP 3407474 B2 JP3407474 B2 JP 3407474B2
- Authority
- JP
- Japan
- Prior art keywords
- corrugated
- heat exchanger
- manufacturing
- plate
- sealing material
- 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
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は流体間での熱交換を行
なわせる主として空調用の熱交換器の製造方法に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a heat exchanger for air conditioning, in which heat is exchanged between fluids.
【０００２】[0002]
【従来の技術】例えば気体間での熱交換を行なわせる熱
交換器としては、特公昭４７ー１９９９０号公報や特公
昭５４ー１０５４号公報及び特公昭５１ー２１３１号公
報に開示されているようなものが広く採用されている。
これらのいずれも伝熱性と通湿性とを有する仕切板（伝
熱性のみを有するものであることもある）を間隔板を挟
んで所定の間隔をおいて複数層に重ね合わせた基本構造
を採っている。仕切板は方形の平板で、間隔板は投影平
面が仕切板に一致する鋸波状又は正弦波状の波形を成形
した波板となっており、間隔板を仕切板の間にその波形
の成形方向を交互に９０度違えて挟着し、一次気流と二
次気流を通す熱交換通路をこれらの各層間に交互に構成
している。2. Description of the Related Art For example, heat exchangers for exchanging heat between gases are disclosed in JP-B-47-19990, JP-B-54-1054 and JP-B-51-2131. Are widely adopted.
Each of these has a basic structure in which a partition plate having heat conductivity and moisture permeability (which may have only heat conductivity) is superposed in a plurality of layers at predetermined intervals with a space plate interposed therebetween. There is. The partition plate is a rectangular flat plate, and the spacing plate is a corrugated plate with a sawtooth or sinusoidal waveform whose projection plane matches the partition plate. Heat exchange passages, which are sandwiched 90 degrees apart and pass the primary air stream and the secondary air stream, are alternately formed between these layers.
【０００３】上記構成の熱交換器では、各層ごとに交互
に形成され相互に独立した二系統の熱交換通路にそれぞ
れ一次気流と二次気流を導通させることにより、一次気
流と二次気流との間で気流のそれぞれの保有する温度と
湿度とが同時かつ連続的に交換される。そして、特公昭
５１―４２３３４号公報や特公昭６２―３５５９６号公
報、さらには特開平６―１０９３９５号公報や特開平６
―１２３５７９号公報に開示されているように熱交換機
能の主体となる仕切板に関する多くの工夫もなされ、高
い熱交換効率が得られるところまで技術革新が進み、空
調分野において大きな貢献を果すに至っている。In the heat exchanger having the above-mentioned structure, the primary air flow and the secondary air flow are connected to the heat exchange passages of the two systems which are alternately formed for each layer and are independent of each other, so that the primary air flow and the secondary air flow are connected. In between, the temperature and humidity of each of the air streams are exchanged simultaneously and continuously. Japanese Patent Publication No. 51-42334, Japanese Patent Publication No. 62-35596, and Japanese Patent Laid-Open Nos. 6-109395 and 6
As disclosed in Japanese Patent No. 123579, many innovations have been made on a partition plate that is the main component of the heat exchange function, and technological innovation has advanced to the point where high heat exchange efficiency can be obtained, which has made a great contribution to the air conditioning field. There is.
【０００４】しかしながら、空調装置への小型化高性能
化の要請は強く、その要請の基に更に熱交換器の熱交換
効率を一段と高めることが課題となっており、仕切板や
間隔板についての材質の改良や薄肉化など熱交換効率を
向上させるための多くの工夫や試行が行なわれている。
しかし、もともと上記したような熱交換器はその基本構
造がシンプルで既に完成度もかなり高くなっていること
から、仕切板の材質の改良や薄肉化の方向ではもはや上
記した課題を達成することは殆ど無理である。However, there is a strong demand for miniaturization and high performance of the air conditioner, and further improvement of the heat exchange efficiency of the heat exchanger has been an issue based on the demand, and there is a problem in partition plates and spacing plates. Many efforts and trials have been made to improve heat exchange efficiency by improving the material and reducing the wall thickness.
However, since the heat exchanger as described above originally has a simple basic structure and the degree of completion is already quite high, it is no longer possible to achieve the above-mentioned problems in the direction of improving the material of the partition plate and reducing the wall thickness. Almost impossible.
【０００５】こうした中で、例えば特開昭６０―２８８
８号公報、実開平５―５２５６８号公報、実開平５―５
２５６７号公報に示されているような熱交換に関する有
効面積を大きく拡大しようとする方向の技術が提唱され
ている。特開昭６０―２８８８号公報のものは、波板を
交互に山部分が接触するように重ねたものを、同方向に
両端にスペーサを挟み込んで積層したものである。これ
は伝熱面が波板で平板でないので伝熱面積が広くなるも
のの、一方の通路は直線状になるが、多方の通路は波形
と直交し凹凸が臨むものになってしまい、一次流体と二
次流体が全く異った流れ方をすることと、接着によりで
きる熱交換阻害箇所が広いため性能はそれ程期待できな
い。また、波板の山同士を全て正確に対応させること
は、ピッチの小さい波板でははなはだ難しく生産性も低
い。Under these circumstances, for example, Japanese Patent Laid-Open No. 60-288
No. 8, Japanese Utility Model Publication No. 5-52568, Japanese Utility Model Publication No. 5-5
A technique has been proposed in the direction of greatly expanding the effective area for heat exchange as shown in Japanese Patent No. 2567. In Japanese Patent Laid-Open No. 60-2888, a corrugated plate is piled up so that the peak portions are alternately in contact with each other, and a spacer is sandwiched at both ends in the same direction and laminated. Although the heat transfer area is wide because the heat transfer surface is a corrugated plate and not a flat plate, one of the passages is linear, but many of the passages are orthogonal to the corrugations and have irregularities, which makes it a primary fluid. The performance cannot be expected so much because the secondary fluids flow in completely different ways and the heat exchange obstruction points formed by adhesion are wide. In addition, it is difficult to accurately match all the crests of the corrugated sheet with a corrugated sheet having a small pitch, and the productivity is low.
【０００６】実開平５―５２５６８号公報、実開平５―
５２５６７号公報に示されているものは、図９に示すよ
うに波形の素子シート１０１を互いに波形が交差するよ
うに積層し、素子シート１０１の端面の谷部を互い違い
に閉鎖して構成したものである。これは、間隔板に相当
する部材なしに波形の素子シート１０１のみで構成でき
るうえ、熱交換に関する有効面積も格段に広がり高性能
化及びコンパクト化に有効なものである。Japanese Utility Model Publication No. 52568/1993, Japanese Utility Model Publication No.
The one disclosed in Japanese Patent No. 52567 is configured by stacking corrugated element sheets 101 so that corrugations intersect each other as shown in FIG. 9 and alternately closing the valleys of the end faces of the element sheet 101. Is. This can be constituted only by the corrugated element sheet 101 without a member corresponding to the spacing plate, and the effective area for heat exchange is remarkably widened, which is effective for high performance and compactness.
【０００７】[0007]
【発明が解決しようとする課題】上記した間隔板を廃
し、波板だけを積層した高性能化の期待がもてる熱交換
器にも大きな克服すべき問題点がある。即ち、素子シー
ト１０１の端面の谷部を互い違いに閉鎖することが実際
にははなはだ難しく、空調装置に適用するこの種の熱交
換器では、素子シート１０１の波形の高さ及びピッチは
それぞれ２．５ｍｍ程度や４〜６ｍｍ程度と小さく、そ
の厚さも坪量１００程度と薄いため一つ一つの谷部を閉
止することはほとんど無理なことである。実開平５―５
２５６８号公報のものは平面部１０２を作ることで、型
により閉鎖部も一体に成形するようにしているが、薄い
素子シート１０１と同等の閉止部では、送風による圧力
を受けて閉止した部分が開放してしまいかねない。The heat exchanger in which the above-mentioned spacing plate is abolished and only corrugated plates are laminated and which is expected to have high performance, has a serious problem to be overcome. That is, it is extremely difficult to alternately close the valleys of the end faces of the element sheet 101, and in this type of heat exchanger applied to an air conditioner, the corrugated height and pitch of the element sheet 101 are 2. Since it is as small as about 5 mm or about 4 to 6 mm and its thickness is as thin as about 100 gramm, it is almost impossible to close each valley. Actual Kaihei 5-5
In the 2568 publication, the flat portion 102 is formed so that the closed portion is also integrally formed by a mold. However, in the closed portion equivalent to the thin element sheet 101, the closed portion due to the pressure of the air blow is closed. It could be released.
【０００８】本発明は上記した従来の問題点を本質的に
解決しようとしてなされたもので、その課題とするとこ
ろは、第１には高性能にしてコンパクトで生産性の良い
熱交換器を容易に製造することができる製造方法を確立
することであり、大がかりな製造設備を要しない熱交換
器の製造方法を得ることであり、熱交換器のコストを低
減させることである。The present invention has been made to essentially solve the above-mentioned conventional problems. The first problem is that a heat exchanger of high performance, compact size and good productivity can be easily provided. It is to establish a manufacturing method capable of manufacturing a heat exchanger, to obtain a manufacturing method of a heat exchanger that does not require large-scale manufacturing equipment, and to reduce the cost of the heat exchanger.
【０００９】[0009]
【課題を解決するための手段】前記課題を達成するため
に請求項１の発明は、伝熱性を有するコルゲート板だけ
の積層により構成される階層構造体の熱交換器の製造に
あたり、波形を形成した長尺のコルゲート板をその波形
の走る方向に送り出しながら、幅寸法とほぼ同寸法の間
隔をおいて波形を横断する方向で片面の全ての谷部に樹
脂等のシール材を流し込んで各谷部を帯状又は線状に閉
塞した後、コルゲート板を裁断して、片面の両端に波形
を横断するようにその谷部がシール材の充填によって気
密状態に閉塞した平行四辺形のコルゲート板を形成し、
このコルゲート板を一層おきにその波形が交差するよう
に峰同士を接触させて複数層に重ね合わせる手段を採用
する。In order to achieve the above object, the invention of claim 1 forms a corrugation in manufacturing a heat exchanger of a hierarchical structure constituted by laminating only corrugated plates having heat conductivity. While feeding the long corrugated board in the direction of the corrugation, a sealing material such as resin is poured into all the troughs on one side in the direction crossing the corrugation at intervals of almost the same dimension as the width dimension. After closing the part in a strip shape or a line shape, cut the corrugated board and form a parallelogram corrugated board whose troughs are closed in an airtight state by filling the seal material so that both ends of one side cross the corrugation. Then
The corrugated plate is arranged in alternate layers so that the peaks of the corrugated plates are in contact with each other so that the corrugations intersect each other, and the corrugated plates are superposed in plural layers.
【００１０】前記課題を達成するために請求項２の発明
は、伝熱性を有するコルゲート板だけの積層により構成
される階層構造体の熱交換器の製造にあたり、波形を形
成した長尺のコルゲート板をその波形の走る方向と直交
する方向に送り出しながら、その片面の幅方向の両端の
各谷部に樹脂等のシール材を流し込んで各谷部を帯状又
は線状に樹脂で閉塞した後、幅寸法とほぼ同寸法の間隔
で切断して片面の両端に波形を横断するようにその谷部
がシール材の充填によって気密状態に閉塞した平行四辺
形のコルゲート板を形成し、このコルゲート板を一層お
きにその波形が交差するように峰同士を接触させて複数
層に重ね合わせる手段を採用する。In order to achieve the above object, the invention of claim 2 is a long corrugated plate having a corrugated shape in manufacturing a heat exchanger of a hierarchical structure constituted by laminating only corrugated plates having heat conductivity. While sending out in a direction orthogonal to the running direction of the waveform, seal material such as resin is poured into each trough at both ends in the width direction of one side of the trough to block each trough with resin in a strip or line shape, and then A parallelogram corrugated plate is formed by cutting it at intervals of approximately the same size and crossing the corrugation at both ends of one side, and the valleys of which are closed in an airtight state by filling with a sealing material. A method is adopted in which the peaks are brought into contact with each other so that the waveforms intersect each other and the layers are superimposed on each other.
【００１１】前記課題を達成するために請求項３の発明
は、平行四辺形に裁断した伝熱性を有する金属板のコル
ゲート板だけを一層おきにその波形が交差するように峰
同士を接触させ複数層に重ね合わせて６面体の階層構造
体を形成し、この階層構造体の各積層面における波形の
積層方向に関する半分の谷部を一層おきに半田等の溶融
金属のシール材の流し込みにより閉塞し、各コルゲート
板の波形による一次流体通路と二次流体通路とが各層ご
とに交差状に出現するようにする手段を採用する。In order to achieve the above object, the invention of claim 3 is such that only corrugated plates of a metal plate having a heat conductivity cut into a parallelogram are provided so that their corrugations intersect every other layer. A hexahedral layered structure is formed by bringing the layers into contact with each other and stacking them in a plurality of layers . Melting of solder or the like at every other half trough in the stacking direction of corrugations on each stacking surface of this layered structure.
A means is adopted which is closed by pouring a metal seal material so that the primary fluid passage and the secondary fluid passage due to the corrugated shape of each corrugated plate appear in an intersecting manner in each layer.
【００１２】前記課題を達成するために請求項４の発明
は、平行四辺形に裁断した伝熱性を有する金属板の波板
の片面の両端をその波形を横断するように各谷部を半田
等の溶融金属のシール材の流し込みにより気密状態に閉
塞したコルゲート板を、一層おきにその波形が交差する
ように峰同士を接触させて複数層に重ね合わせる手段を
採用する。In order to achieve the above-mentioned object, the invention of claim 4 solders each trough so that both ends of one side of a corrugated metal plate having heat conductivity cut into parallelograms cross the corrugations.
A corrugated plate, which is closed in an airtight state by pouring a sealing material of molten metal such as, for example, has a structure in which ridges are brought into contact with each other so that their corrugations intersect, and a plurality of layers are superposed.
【００１３】前記課題を達成するために請求項５の発明
は、請求項１にかかる手段における長尺のコルゲート板
の裁断箇所を、シール材を充填した充填部分のシール材
の幅の中央にする手段を採用する。In order to achieve the above-mentioned object, the invention of claim 5 makes the cut portion of the long corrugated plate in the means according to claim 1 the center of the width of the sealing material of the filling portion filled with the sealing material. Adopt means.
【００１４】[0014]
【００１５】[0015]
【作用】請求項１にかかる前記手段においては、長尺の
コルゲート板の送り出し方向と直交する方向において樹
脂等のシール材を間隔をおいて各谷部に流し込むだけで
気密状態に各谷部を一括して閉塞することができ、片面
の両端に波形を横断するようにその谷部がシール材の充
填によって閉塞した平行四辺形のコルゲート板を裁断
し、これを一層おきにその波形が交差するように複数層
に重ね合わせればコルゲート板だけの積層による熱交換
器が得られる。In the above-mentioned means according to the first aspect, each trough is made airtight simply by pouring a sealing material such as resin into each trough at intervals in the direction orthogonal to the feeding direction of the long corrugated plate. It can be closed at once, and cuts a parallelogram-shaped corrugated plate whose valleys are closed by filling with a sealing material so that it crosses the corrugations on both sides of one side, and the corrugations intersect every other layer. By stacking a plurality of layers, a heat exchanger can be obtained by stacking only corrugated plates.
【００１６】請求項２にかかる前記手段においては、送
り出される長尺のコルゲート板の両端において樹脂等の
シール材を各谷部に流し込むだけで気密状態に各谷部の
両端を一括して閉塞することができ、片面の両端に波形
を横断するようにその谷部がシール材の充填によって閉
塞した平行四辺形のコルゲート板を裁断し、これを一層
おきにその波形が交差するように複数層に重ね合わせれ
ばコルゲート板だけの積層による熱交換器が得られる。In the means according to the second aspect of the present invention, both ends of each trough are collectively closed in an airtight state simply by pouring a sealing material such as resin into each trough at both ends of the long corrugated plate to be fed. It is possible to cut a parallelogram corrugated plate whose valleys are closed by the filling of sealing material so that the corrugations intersect at both ends of one side, and this is divided into multiple layers so that the corrugations intersect every other layer. If superposed, a heat exchanger can be obtained by stacking only corrugated plates.
【００１７】請求項３にかかる前記手段においては、コ
ルゲート板だけの６面体の階層構造体を形成した後で、
一括して階層構造体の各積層面における波形の積層方向
に関する半分の谷部を一層おきにシール材の流し込みに
より閉塞することができ、金属板のコルゲート板だけの
積層による熱交換器が得られる。In the above-mentioned means according to claim 3, after forming a hexahedral hierarchical structure having only corrugated plates,
Half of the valleys in the stacking direction of the corrugations on each stacking surface of the hierarchical structure can be closed by pouring a sealing material every other layer, and only the corrugated plate of the metal plate can be closed .
A heat exchanger by lamination is obtained .
【００１８】請求項４にかかる前記手段においては、波
板の片面の両端をその波形を横断するように各谷部をシ
ール材の流し込みにより気密状態に閉塞して得られるコ
ルゲート板を一層おきにその波形が交差するように複数
層に重ね合わせるだけで金属板のコルゲート板だけの積
層による熱交換器が得られる。According to the fourth aspect of the present invention, it is obtained by closing each trough portion in such a manner that both ends of one surface of the corrugated plate traverse the corrugated portion by pouring a sealing material in an airtight state. A heat exchanger can be obtained by laminating only corrugated plates of metal plates by simply stacking the corrugated plates in a plurality of layers so that their corrugations intersect each other.
【００１９】請求項５にかかる前記手段においては、請
求項１にかかる作用とともに長尺のコルゲート板の裁断
において廃材となる部分がなくなる。In the means according to claim 5, in addition to the operation according to claim 1, there is no part to be a waste material in cutting a long corrugated plate.
【００２０】[0020]
【００２１】[0021]
【実施例】まず始めに、この発明の製造方法によって製
造される熱交換器の構成について説明する。図１は最も
基本的な構成の熱交換器の全体を示す斜視図であり、図
２はこの熱交換器の構成要素であるコルゲート板を拡大
して示す斜視図である。即ち、この熱交換器１は伝熱性
を有する薄肉のコルゲート板２を一層おきにその波形が
交差（図例では直交交差である）するように峰同士を接
触させ複数層に重ね合わせて、隣接するコルゲート板２
の波形の峰３同士の接する箇所で接着し、重ね合わせた
各コルゲート板２の波形による通路が各層ごとに交差状
に出現する６面体の階層構造体として構成されている。
この階層構造体の各層の上記通路における当該通路を形
成している各コルゲート板２の波形により、積層方向に
隔てられる通路端の積層方向に関する片側（図１では上
半分である）は閉塞部４として気密にシール材５により
閉塞されている。First, the structure of a heat exchanger manufactured by the manufacturing method of the present invention will be described. FIG. 1 is a perspective view showing an entire heat exchanger having the most basic structure, and FIG. 2 is an enlarged perspective view showing a corrugated plate which is a constituent element of this heat exchanger. That is, in this heat exchanger 1, every other thin corrugated plate 2 having heat conductivity is contacted with its ridges so that their corrugations intersect (orthogonal intersections in the illustrated example), and the adjacent layers are superposed. Corrugated board 2
The corrugated ridges 3 are adhered to each other at their contact points, and the corrugated corrugated plates 2 are overlapped with each other to form a corrugated passage in a crossed shape in each layer.
Due to the corrugation of each corrugated plate 2 forming the passage in each passage of each layer of this hierarchical structure, one end (the upper half in FIG. 1) of the passage end separated in the lamination direction in the laminating direction is closed portion 4. Is hermetically closed by the sealing material 5.
【００２２】この熱交換器１の特徴は、基本的には複数
の同形同大のコルゲート板２の単純な積層のみで一次流
体イと二次流体ロとを流通させ得る相互に離隔された一
次流体通路６と二次流体通路７とが一層おきに構成され
ることで、換言すれば間隔を保持するスペーサなしにコ
ルゲート板２同士の間に一次流体通路６と二次流体通路
７とが形成されていることである。The feature of this heat exchanger 1 is that the primary fluid A and the secondary fluid B are basically separated from each other by simply laminating a plurality of corrugated plates 2 of the same shape and size. Since the primary fluid passages 6 and the secondary fluid passages 7 are formed in alternate layers, in other words, the primary fluid passages 6 and the secondary fluid passages 7 are provided between the corrugated plates 2 without a spacer for maintaining the space. Is being formed.
【００２３】コルゲート板２は図２に示すように平面形
状が平行四辺形に坪量１００程度の伝熱材料で形成さ
れ、台形状や鋸歯状や三角波や正弦波状の波形が全面に
成形されている。閉塞部４は、後述するようにコルゲー
ト板２を積層した状態で当該部のみにシール材５を注入
する仕方や、積層前のコルゲート板２にシール材５によ
り予め閉塞部４を形成する仕方で形成されている。閉塞
部４を形成するシール材５はホットメルト樹脂等の気密
保持性のある樹脂や、コルゲート板２が金属板の場合は
半田等が使用されている。このようにコルゲート板２に
予め閉塞部４をシール材５の充填により形成しておく
と、コルゲート板２の波形がシール材５により拘束され
保形されるので、コルゲート板２の積層に際し波形の変
形等が起きにくく扱い易い。As shown in FIG. 2, the corrugated plate 2 is made of a heat transfer material having a parallelogram in a plane and a basis weight of about 100, and a trapezoidal, sawtooth, triangular or sinusoidal waveform is formed on the entire surface. There is. The closing portion 4 is formed by injecting the sealing material 5 only into the portion where the corrugated plates 2 are stacked as described later, or by forming the closing portion 4 on the corrugated plate 2 before stacking with the sealing material 5 in advance. Has been formed. A resin having airtightness maintaining property such as a hot-melt resin or a solder is used when the corrugated plate 2 is a metal plate as the sealing material 5 forming the closed portion 4. In this way, if the corrugated plate 2 is formed with the closing portion 4 in advance by filling it with the seal material 5, the corrugated plate 2 has a corrugated shape that is constrained by the seal material 5 to retain its shape. It is easy to handle because it does not deform.
【００２４】上記構成のコルゲート板２同士を構造的な
依存関係を持たせず単純に波形が交互に交差するように
して積層すれば、階層構造体としての熱交換器１が構成
できる。この熱交換器１において、図１に示すように各
層ごとに交互に形成され相互に独立した一次流体通路６
と二次流体通路７とにそれぞれ一次流体イと二次流体ロ
を一方の開口端から導通させることにより、一次流体イ
と二次流体ロとの間で流体の流動を中断することなくそ
れぞれの保有する温度や湿度を連続的に交換させること
ができる。一次流体通路６も二次流体通路７もそれらの
内部には、流通方向に対して交差する方向の隣接するコ
ルゲート板２による波形が臨んでいるので、通過する一
次流体イも二次流体ロも乱流化される。一次流体イと二
次流体ロの乱流化は、伝熱面への接触回数の増加につな
がり、熱交換性能を向上させる方向に働く。The heat exchanger 1 as a hierarchical structure can be constructed by stacking the corrugated plates 2 having the above-described structure so that the corrugated plates 2 do not have a structural dependency and the corrugations are simply crossed alternately. In this heat exchanger 1, as shown in FIG. 1, primary fluid passages 6 are formed alternately for each layer and are independent of each other.
By connecting the primary fluid a and the secondary fluid b to the secondary fluid passage 7 and the secondary fluid channel 7 from one opening end, respectively, the fluid flow between the primary fluid a and the secondary fluid b is not interrupted. The temperature and humidity held can be continuously changed. In both of the primary fluid passage 6 and the secondary fluid passage 7, the corrugated corrugated plates 2 adjacent to each other in the direction intersecting the flow direction face the inside thereof, so that both the passing primary fluid a and the secondary fluid b are passed. Is turbulent. The turbulent flow of the primary fluid a and the secondary fluid b leads to an increase in the number of contact with the heat transfer surface, which works to improve the heat exchange performance.
【００２５】この熱交換器１における熱交換に機能する
伝熱面積はコルゲート板２によるため、従来の平板によ
る積層型熱交換器より同一投影平面において１５０％程
度まで増加させることができる。即ち、コルゲート板２
一枚当たりの伝熱面積の増加分に積層枚数を乗じた広大
な伝熱面積の増加が得られるため、すこぶる性能の高い
熱交換器となる。一次流体通路６と二次流体通路７の出
入口の開口面積は積層方向に関する片側が閉塞されるの
で狭くなるものの、熱交換に機能するコルゲート板２の
みで構成するためコンパクトであり、材料もスペーサを
要する従来のものに比べ３０％〜４０％も減少する。特
に、樹脂による閉塞部４は送風による圧力で剥がれたり
せず安定した構造であり気密性も高く維持できるので熱
交換器１としての信頼性は高いものとなる。Since the heat transfer area functioning for heat exchange in the heat exchanger 1 is due to the corrugated plate 2, it can be increased up to about 150% in the same projection plane as compared with the conventional flat plate type laminated heat exchanger. That is, the corrugated board 2
Since a vast increase in the heat transfer area obtained by multiplying the increase in the heat transfer area per sheet by the number of laminated layers is obtained, the heat exchanger has a very high performance. Although the opening area of the inlet and outlet of the primary fluid passage 6 and the secondary fluid passage 7 is narrowed because one side in the stacking direction is closed, it is compact because it is composed only of the corrugated plate 2 that functions for heat exchange, and the material is also a spacer. It is 30% to 40% less than the conventional one. Particularly, the closed portion 4 made of resin has a stable structure that is not peeled off by the pressure of the blown air, and can maintain high airtightness, so that the reliability of the heat exchanger 1 is high.
【００２６】なお、コルゲート板２としては、無孔質伝
熱材であるアルミ板や薄鋼板等の金属やプラスチック板
の他、伝熱性と通湿性をあわせ持つ繊維性多孔質材又は
非繊維性多孔質材や透湿性があり透気性の小さい気体に
関する選択透過性を備えた多孔質伝熱材等が広く採用さ
れる。As the corrugated plate 2, a metal or plastic plate such as a non-porous heat transfer material such as an aluminum plate or a thin steel plate, or a fibrous porous material or a non-fibrous material having both heat conductivity and moisture permeability. A porous material or a porous heat transfer material having a moisture permeability and a low gas permeability and a selective permeability for a gas is widely adopted.
【００２７】次にこの発明の実施例として上記した構成
の熱交換器の製造方法について説明する。
実施例１
この実施例１の製造方法は、図３に示すように波形を形
成した長尺のコルゲート板８をその波形の走る方向に搬
送手段９により間欠的に送り出しながら、その幅寸法と
ほぼ同寸法の間隔をおいて波形を横断する方向に設けら
れたガンノズル等の充填手段１０で片面の全ての谷部１
１にシール材５としてのホットメルト樹脂を流し込んで
各谷部１１を帯状又は線状に一括して閉塞することを特
徴とするものである。充填手段１０は図３に示すように
搬送手段９の上方に架設されていて、各谷部１１に対応
する一列に並ぶノズル１２を備え、谷部１１を塞ぐに足
る量のホットメルト樹脂を一定時間毎に各谷部１１に流
し込む。Next, a method of manufacturing the heat exchanger having the above-mentioned structure will be described as an embodiment of the present invention. Example 1 In the manufacturing method of Example 1, a long corrugated plate 8 having a corrugated shape as shown in FIG. All the troughs 1 on one side are filled with the filling means 10 such as a gun nozzle which is provided in the direction traversing the corrugations at the same intervals.
It is characterized in that hot-melt resin as the seal material 5 is poured into 1 to collectively close the valleys 11 in a strip shape or a linear shape. As shown in FIG. 3, the filling means 10 is provided above the conveying means 9, and is provided with nozzles 12 arranged in a line corresponding to each trough 11 so that a sufficient amount of hot melt resin can be filled in the trough 11. Pour into each valley 11 every hour.
【００２８】搬送手段９における充填手段１０の後段に
は、充填されたホットメルト樹脂を冷却する冷却手段１
３が設けられ、冷却手段１３を通過することにより充填
されたホットメルト樹脂は硬化し谷部１１に密着する。
この後、裁断手段１４により長尺のコルゲート板８が順
次裁断され、片面の両端に波形を横断するようにその谷
部１１がホットメルト樹脂の充填によって気密状態に閉
塞した図２に示すような平行四辺形のコルゲート板２が
形成される。裁断手段１４は図例では長尺のコルゲート
板８の幅方向に動作するロットレスシリンダ１５とこれ
に取り付けられたカッタ１６とにより構成されている。
こうして形成されたコルゲート板２を一層おきにその波
形が交差するように複数層に重ね合わせれば、図１に示
すような熱交換器１が容易かつ能率的に得られる。After the filling means 10 in the conveying means 9, the cooling means 1 for cooling the filled hot melt resin is provided.
3 is provided, and the hot melt resin filled by passing through the cooling means 13 is hardened and adheres to the valley portion 11.
After that, the long corrugated plate 8 is sequentially cut by the cutting means 14, and the troughs 11 are closed in an airtight state by filling with the hot melt resin so as to cross the corrugation at both ends of one side, as shown in FIG. A parallelogram corrugated plate 2 is formed. The cutting means 14 is composed of a lotless cylinder 15 that operates in the width direction of the long corrugated plate 8 in the illustrated example, and a cutter 16 attached to this.
When the corrugated plates 2 thus formed are laminated in a plurality of layers so that the corrugations of the corrugated plates 2 intersect with each other, the heat exchanger 1 as shown in FIG. 1 can be easily and efficiently obtained.
【００２９】ホットメルト樹脂の充填量を調整して図４
に示すように帯状の充填部分１７を形成し、この充填部
分１７の中央で切断する方法を採ることにより、廃材の
でないより合理的な製造方法となる。By adjusting the filling amount of the hot melt resin, FIG.
By forming a band-shaped filling portion 17 and cutting the filling portion 17 at the center of the filling portion 17 as shown in FIG.
【００３０】実施例２．この実施例２の熱交換器１の製
造方法は、実施例１の製造方法の長尺のコルゲート板８
の送り出し方向を変えたもので、これ以外の基本的な構
成は実施例１のものと同じである。従って、実施例１の
ものと同じ部分については同一の符号を用い詳細な説明
は省略する。Example 2. The manufacturing method of the heat exchanger 1 of the second embodiment is the same as the manufacturing method of the long corrugated plate 8 of the first embodiment.
The sending direction is changed, and the other basic structure is the same as that of the first embodiment. Therefore, the same parts as those of the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.
【００３１】この実施例２は図５に示すように、長尺の
コルゲート板８をその波形の走る方向とは直交する方向
に搬送手段９で搬送するようにしたものである。従っ
て、充填手段１０や冷却手段１３はともに長尺のコルゲ
ート板８の両端に一つずつあればよく、製造設備が簡素
になる。ホットメルト樹脂が充填され冷却された後に、
裁断手段１４により長尺のコルゲート板８をその幅寸法
に等しい間隔で切断すれば、実施例１と同様に図２に示
すコルゲート板２が形成できる。この場合、充填部分１
７を切断しないで済むので切断は容易である。これ以外
は実施例１の製造方法と同じであるのでその説明は省略
する。In the second embodiment, as shown in FIG. 5, a long corrugated board 8 is carried by a carrying means 9 in a direction orthogonal to the direction in which its corrugations run. Therefore, only one filling means 10 and one cooling means 13 are required at both ends of the long corrugated plate 8, which simplifies the manufacturing equipment. After being filled with hot melt resin and cooled,
If the long corrugated board 8 is cut by the cutting means 14 at intervals equal to its width, the corrugated board 2 shown in FIG. 2 can be formed as in the first embodiment. In this case, the filling part 1
Since 7 does not have to be cut, the cutting is easy. Other than this, the manufacturing method is the same as that of the first embodiment, and thus the description thereof is omitted.
【００３２】実施例３．この実施例３の熱交換器１の製
造方法は、閉塞部４を階層構造に形成した後で形成する
ことを特徴とするものである。即ち、同形同大の平行四
辺形に裁断したコルゲート板２を一層おきにその波形が
交差するように複数層に重ね合わせて、隣接するコルゲ
ート板２の波形の峰３同士の接する箇所で接着して形成
した、階層構造体の各積層面における波形の積層方向に
関する半分の谷部１１を一層おきにシール材５としての
ホットメルト樹脂を流し込んで閉塞することを特徴とす
るものである。この場合の充填手段１０は、例えば図
６，７に示すように注入箇所に対応するノズル１２を、
列配列させた複列のノズル列とこのノズル列間に閉塞し
ない谷部１１を閉止する盲板１８を備えた、上下動する
充填装置として構成する。各盲板１８はバネで弾装さ
れ、各ノズル列が谷部１１に突入した時に開放させる各
谷部を弾性的に閉止し、シール材５の付着を防ぐ。これ
により、一括して閉塞部４を形成することができ、図１
に示すような熱交換器１が容易かつ能率的に得られる。
プラスチック板や金属板のように剛性があり、波形の保
形性も良いコルゲート板２では、積層面の波形とノズル
列との整合性が得易いため、この製造方法の有効性が増
す。コルゲート板２が鋼板などの場合、溶融半田の流し
込みによって閉塞部４を形成してもよい。Example 3. The method of manufacturing the heat exchanger 1 according to the third embodiment is characterized in that the closed portion 4 is formed after being formed in a hierarchical structure. That is, the corrugated plates 2 cut into parallelograms of the same shape and size are stacked in multiple layers so that the corrugations of the corrugated plates intersect every other layer, and the corrugated crests 3 of the adjacent corrugated plates 2 are bonded to each other at the contact points. It is characterized in that the hot-melt resin as the sealing material 5 is poured into every other half of the troughs 11 in the stacking direction of the corrugations on each stacking surface of the layered structure formed in this way to close it. The filling means 10 in this case has nozzles 12 corresponding to the injection points as shown in FIGS.
The filling device is configured to move up and down, which includes a double row of nozzle rows arranged in rows and a blind plate 18 that closes the valleys 11 that are not blocked between the nozzle rows. Each blind plate 18 is elastically mounted by a spring, and elastically closes each trough that is opened when each nozzle row enters the trough 11, thereby preventing the seal material 5 from adhering. As a result, it is possible to collectively form the closed portion 4, and FIG.
The heat exchanger 1 as shown in (1) can be obtained easily and efficiently.
In the corrugated plate 2 having rigidity and good shape retention of the corrugation like a plastic plate or a metal plate, it is easy to obtain the matching between the corrugation of the laminated surface and the nozzle row, and thus the effectiveness of this manufacturing method is increased. When the corrugated plate 2 is a steel plate or the like, the closed portion 4 may be formed by pouring molten solder.
【００３３】実施例４．この実施例４の熱交換器１の製
造方法は、同形同大の平行四辺形に予め裁断したコルゲ
ート板２の波形の方向に交差する両端において、その波
形を横断するように各谷部１１を片面についてシール材
５としてのホツトメルト樹脂の流し込みにより気密状態
に閉塞させ、図２に示すようなコルゲート板２を形成す
ることを特徴とする。こうして得たコルゲート板２を実
施例１や実施例２と同様に積層することにより図１に示
すような熱交換器１が得られる。プラスチック板や金属
板のように連続形態のものを具合良く裁断することがな
かなか難しい場合でもこの製造方法によれば容易に熱交
換器１を製造することができ、大がかりな製造設備も要
しない。Example 4. In the method for manufacturing the heat exchanger 1 according to the fourth embodiment, the corrugated plate 2 preliminarily cut into parallelograms having the same shape and the same size has the valleys 11 at both ends intersecting the corrugated direction in the corrugated direction. Is sealed in an airtight state by pouring a hot-melt resin as the sealing material 5 on one side, and the corrugated plate 2 as shown in FIG. 2 is formed. The heat exchanger 1 as shown in FIG. 1 is obtained by stacking the corrugated plates 2 thus obtained in the same manner as in Examples 1 and 2. Even if it is difficult to properly cut a continuous plate such as a plastic plate or a metal plate, the heat exchanger 1 can be easily manufactured by this manufacturing method, and a large-scale manufacturing facility is not required.
【００３４】上記各実施例で示したコルゲート板２を互
いに非接着に積層して熱交換器を作る仕方もある。これ
は、それぞれそのコルゲート板２を拘束部材により拘束
状態にして積層するものである。即ち、各実施例により
示したようなコルゲート板２を底板と六面体の稜角部を
保持する断面アングル状の枠部を持つ枠体と蓋板とから
なる拘束部材に非接着の状態で収納する。相互間が接着
されず枠体内に積層された各コルゲート板２は、枠体へ
の蓋板の固着により底板と蓋板との間に押圧状態に収納
される。このような構成の熱交換器１では、接着剤によ
りできる熱交換阻害箇所がなくなるためより熱交換、特
に潜熱交換に関する性能が向上する。There is also a method of making a heat exchanger by laminating the corrugated plates 2 shown in each of the above-mentioned embodiments without adhering to each other. This is to stack the corrugated plates 2 in a restraining state by a restraining member. That is, the corrugated board 2 as shown in each of the embodiments is housed in a non-bonded state in a restraining member composed of a bottom plate and a frame body having a frame portion having an angled cross section for holding the ridges of the hexahedron and the lid plate. The corrugated plates 2 stacked in the frame body without being adhered to each other are housed in a pressed state between the bottom plate and the cover plate by fixing the cover plate to the frame body. In the heat exchanger 1 having such a configuration, there is no heat exchange impeding portion formed by the adhesive, so that the performance relating to heat exchange, particularly the latent heat exchange is improved.
【００３５】また、上記各実施例で示したコルゲート板
２のうち材料が紙類のように剛性が低く波形の保形性も
低いものに対しては、それぞれ裁断前か裁断後にそのコ
ルゲート板２の少なくとも片面の中央に、図８に示すよ
うに波形の峰３同士を谷部１１を跨いで連結するリボン
状の補強部材１９を接着することにより、波形の保形性
が増し製造し易くなり、熱交換器１の品質も向上する。Among the corrugated board 2 shown in each of the above-mentioned embodiments, the corrugated board 2 made of a material such as paper having a low rigidity and a low corrugated shape retention property is cut before or after cutting, respectively. As shown in FIG. 8, by bonding a ribbon-shaped reinforcing member 19 that connects the corrugated peaks 3 to each other across the valleys 11 to the center of at least one surface of the corrugated plate, the corrugated shape retention property is increased and the manufacturing becomes easier. The quality of the heat exchanger 1 is also improved.
【００３６】[0036]
【発明の効果】以上実施例による説明からも明らかなよ
うに、請求項１の発明によればコルゲート板だけの積層
による高性能で品質の良い熱交換器が大がかりな設備な
しに能率的に製造できる。As is apparent from the above description of the embodiment, according to the invention of claim 1, a high-performance and high-quality heat exchanger by stacking only corrugated plates can be efficiently manufactured without large-scale equipment. it can.
【００３７】請求項２の発明によれば、コルゲート板だ
けの積層による高性能で品質の良い熱交換器が大がかり
な設備なしに能率的に製造できる。According to the second aspect of the present invention, a high-performance and high-quality heat exchanger by laminating only corrugated plates can be efficiently manufactured without large-scale equipment.
【００３８】請求項３の発明によれば、金属板のコルゲ
ート板だけの積層による高性能で品質の良い熱交換器が
能率的に製造できる。According to the invention of claim 3, a heat exchanger of high performance and good quality can be efficiently manufactured by laminating only corrugated plates of metal plates .
【００３９】請求項４の発明によれば、金属板のコルゲ
ート板だけの積層による高性能で品質の良い熱交換器が
大がかりな設備なしに能率的に製造できる。According to the invention of claim 4, a high-performance and high-quality heat exchanger by laminating only corrugate plates of metal plates can be efficiently manufactured without large-scale equipment.
【００４０】請求項５の発明によれば、請求項１の発明
にかかる効果とともにコルゲート板の裁断において廃材
となる部分がなくなり、熱交換器のコストを低減でき
る。According to the invention of claim 5, in addition to the effect of the invention of claim 1, there is no part to be a waste material in cutting the corrugated plate, and the cost of the heat exchanger can be reduced.
【００４１】[0041]
【図１】この発明の実施例の製造方法で得られる基本的
な構成の熱交換器を示す斜視図である。FIG. 1 is a perspective view showing a heat exchanger having a basic structure obtained by a manufacturing method according to an embodiment of the present invention.
【図２】熱交換器の構成要素であるコルゲート板を単独
に示す斜視図である。FIG. 2 is a perspective view independently showing a corrugated plate which is a component of the heat exchanger.
【図３】実施例１の製造方法を実施する製造設備の構成
図である。FIG. 3 is a configuration diagram of manufacturing equipment for carrying out the manufacturing method of the first embodiment.
【図４】実施例１の製造方法における切断箇所を示す説
明図である。FIG. 4 is an explanatory view showing a cut portion in the manufacturing method of the first embodiment.
【図５】実施例２の製造方法を実施する製造設備の構成
図である。FIG. 5 is a configuration diagram of manufacturing equipment for carrying out the manufacturing method of the second embodiment.
【図６】実施例３の製造方法を実施する製造設備の一部
を示す側面図である。FIG. 6 is a side view showing a part of manufacturing equipment for carrying out the manufacturing method of the third embodiment.
【図７】実施例３の製造方法を実施する製造設備の一部
を示す正面図である。FIG. 7 is a front view showing a part of manufacturing equipment for carrying out the manufacturing method of the third embodiment.
【図８】補強部材を使う製造方法を示す説明図である。FIG. 8 is an explanatory diagram showing a manufacturing method using a reinforcing member.
【図９】従来の熱交換器を示す斜視図である。FIG. 9 is a perspective view showing a conventional heat exchanger.
１ 熱交換器 ２ コルゲート板 ３ 峰 ４ 閉塞部 ５ シール材 ６ 一次流体通路 ７ 二次流体通路 ８ 長尺のコルゲート板 ９ 搬送手段 １０ 充填手段 １１ 谷部 １２ ノズル １４ 裁断手段 １７ 充填部分 1 heat exchanger 2 corrugated board Three peaks 4 Block 5 Seal material 6 Primary fluid passage 7 Secondary fluid passage 8 Long corrugated board 9 Transport means 10 Filling means 11 Tanibe 12 nozzles 14 Cutting means 17 Filling part
Claims (5)
板を一層おきにその波形が交差するように複数層に重ね
合わせ、重ね合わせた上記各コルゲート板の波形による
一次流体通路と二次流体通路とが各層ごとに交差状に出
現する階層構造体の熱交換器の製造方法であって、波形
を形成した長尺のコルゲート板をその波形の走る方向に
送り出しながら、幅寸法とほぼ同寸法の間隔をおいて波
形を横断する方向で片面の全ての谷部に樹脂等のシール
材を流し込んで各谷部を帯状又は線状に閉塞した後、コ
ルゲート板を裁断して、片面の両端に波形を横断するよ
うにその谷部がシール材の充填によって気密状態に閉塞
した平行四辺形のコルゲート板を形成し、このコルゲー
ト板を一層おきにその波形が交差するように峰同士を接
触させて複数層に重ね合わせることを特徴とする熱交換
器の製造方法。1. A primary fluid passage and a secondary fluid passage according to the corrugation of each of the corrugated plates which are superposed in a plurality of layers such that corrugated plates having a heat-transferring parallelogram shape are alternately stacked and their corrugations intersect each other. Is a method for manufacturing a heat exchanger of a hierarchical structure in which each layer appears in an intersecting manner, and while sending out a long corrugated plate having a corrugated shape in the running direction of the corrugated shape, the width dimension is almost the same. A sealing material such as resin is poured into all the valleys on one side in a direction that crosses the corrugations at intervals to block each valley in a strip or line shape, then cut the corrugated plate and corrugate both sides of one side. Form a parallelogram corrugated plate whose valleys are closed in an airtight manner by filling with a sealing material so as to traverse the corrugated plate. Layered A method for manufacturing a heat exchanger, characterized in that the heat exchange is performed.
板を一層おきにその波形が交差するように複数層に重ね
合わせ、重ね合わせた上記各コルゲート板の波形による
一次流体通路と二次流体通路とが各層ごとに交差状に出
現する階層構造体の熱交換器の製造方法であって、波形
を形成した長尺のコルゲート板をその波形の走る方向と
直交する方向に送り出しながら、その片面の幅方向の両
端の各谷部に樹脂等のシール材を帯状又は線状に流し込
んで各谷部を線状に樹脂で閉塞した後、幅寸法とほぼ同
寸法の間隔で切断して片面の両端に波形を横断するよう
にその谷部がシール材の充填によって気密状態に閉塞し
た平行四辺形のコルゲート板を形成し、このコルゲート
板を一層おきにその波形が交差するように峰同士を接触
させて複数層に重ね合わせることを特徴とする熱交換器
の製造方法。2. A primary fluid passage and a secondary fluid passage according to the corrugation of each of the corrugated plates that are superposed in a plurality of layers such that the corrugated plates having a parallelogram shape having heat conductivity are alternately stacked and the corrugations intersect each other. Is a method of manufacturing a heat exchanger of a hierarchical structure in which each layer appears in an intersecting shape, and while sending out a long corrugated plate having a corrugated shape in a direction orthogonal to the running direction of the corrugated surface, Sealing material such as resin is poured into each valley at both ends in the width direction in a strip or line shape, and each valley is linearly closed with resin, and then cut at intervals of approximately the same dimension as the width dimension so that both ends of one side Form a parallelogram-shaped corrugated plate whose valleys are closed in an airtight manner by filling the sealing material so that it crosses the corrugations, and place the corrugated plates in alternating layers so that the corrugations intersect each other. Multiple layers A method for manufacturing a heat exchanger, which is characterized by combining.
属板のコルゲート板を一層おきにその波形が交差するよ
うに峰同士を接触させ複数層に重ね合わせた６面体の階
層構造体を形成し、この階層構造体の各積層面における
波形の積層方向に関する半分の谷部を一層おきに半田等
の溶融金属のシール材の流し込みにより閉塞し、上記各
コルゲート板の波形による一次流体通路と二次流体通路
とが各層ごとに交差状に出現するようにしたことを特徴
とする熱交換器の製造方法。3. Gold having heat conductivity cut into parallelograms
A corrugated plate of a metal plate is formed into a hexahedral layered structure in which the corrugated plates of every other layer are in contact with each other so that the corrugations intersect and a plurality of layers are stacked. For every other half of the valleys, solder etc.
The manufacturing method of a heat exchanger characterized in that the molten metal sealing material is closed by pouring, and the primary fluid passage and the secondary fluid passage due to the corrugation of each corrugated plate appear in a cross shape in each layer. Method.
属板の波板の片面の両端をその波形を横断するように各
谷部を半田等の溶融金属のシール材の流し込みにより気
密状態に閉塞したコルゲート板を、一層おきにその波形
が交差するように峰同士を接触させ複数層に重ね合わせ
て６面体の階層構造体とすることを特徴とする熱交換器
の製造方法。4. Gold having heat conductivity cut into parallelograms
The corrugated plate is closed in an airtight manner by pouring a sealing material of molten metal such as solder so that the corrugated plates cross each other on both sides of one side of the corrugated plate of the metal plate so that the corrugations intersect each other. A method for manufacturing a heat exchanger, characterized in that a plurality of layers are brought into contact with each other to form a hexahedral hierarchical structure.
あって、シール材を充填した充填部分のシール材の幅の
中央で長尺のコルゲート板を裁断することを特徴とする
熱交換器の製造方法。5. The heat exchanger manufacturing method according to claim 1, wherein a long corrugated plate is cut at the center of the width of the sealing material filled with the sealing material. Method of manufacturing exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12504595A JP3407474B2 (en) | 1995-05-24 | 1995-05-24 | Heat exchanger manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12504595A JP3407474B2 (en) | 1995-05-24 | 1995-05-24 | Heat exchanger manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08313184A JPH08313184A (en) | 1996-11-29 |
| JP3407474B2 true JP3407474B2 (en) | 2003-05-19 |
Family
ID=14900478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12504595A Expired - Fee Related JP3407474B2 (en) | 1995-05-24 | 1995-05-24 | Heat exchanger manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3407474B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3362611B2 (en) * | 1996-09-12 | 2003-01-07 | 三菱電機株式会社 | Heat exchanger and method for manufacturing heat exchange member of the heat exchanger |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5895A (en) * | 1981-06-23 | 1983-01-05 | Mitsubishi Electric Corp | Manufacture of heat exchanger made of paper |
| JPH0129431Y2 (en) * | 1984-10-19 | 1989-09-07 | ||
| JPH0552567U (en) * | 1991-12-05 | 1993-07-13 | 株式会社荏原製作所 | Heat exchange element |
-
1995
- 1995-05-24 JP JP12504595A patent/JP3407474B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08313184A (en) | 1996-11-29 |
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