JPS59208395A - Manufacture of heat exchanger for water - Google Patents
Manufacture of heat exchanger for waterInfo
- Publication number
- JPS59208395A JPS59208395A JP8328283A JP8328283A JPS59208395A JP S59208395 A JPS59208395 A JP S59208395A JP 8328283 A JP8328283 A JP 8328283A JP 8328283 A JP8328283 A JP 8328283A JP S59208395 A JPS59208395 A JP S59208395A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- pipes
- bundle
- heat exchanger
- tube bundle
- 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.)
- Pending
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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
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)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、水用熱交換器の製造方法に関し、詳しくは、
多数本束ねられた冷媒管の各端部をロウ付けにより結束
する方法に関する。一
般に多管代の水用熱交換器は、複数の冷媒管を筒状の外
管に挿入し該冷媒管の各端部を外管端部に液密的に取付
けることにより、冷媒管を流通する冷媒とを外管に導い
た冷却水とを熱交換するようにしている。ところで、こ
のような熱交換器では、冷媒管として直径の小さいキャ
タピラリ管（例えば外径１ｍｍ）を多数本（例えば数百
本〜数千本）用いるようにすれば、熱交換器の熱貫流率
を同等にしながら外形の直径を細く、しかもその長さを
短くすることができるので、熱交換器のコンパクト化を
図ることが可能である。しかし、このものでは、冷媒管
の本数が多いため、各冷媒管ごとに外管端部への取付け
を行っていたのでは製造工数が著しく増人するという問
題がある。そこで、このような問題を解決すべく、例え
ば、第６図に示すように、可等性を有する樹脂等の熱塑
性材料よりなる冷媒管（ａ）・・・を多数本束ねて各冷
媒管（ａ）の端部（ａ１）を、筒状の金属罐（ｂ）に機
密的に勘合された端部スリーブ（ｃ）に挿入しておき、
冷媒管端部（ａ１）・・に熱板（ｄ）内で加熱されたシ
リコン油を導入するとともに、金屈罐（ ｂ ）の流入
口（ｃ）から空気を排出して該金属罐（１１）内を低真
空状態に保つことにより、冷媒管端部（ａ１）を軟化、
膨張せしめ、このことにより、各零倍管端部（ａ１）断
面はちの巣状に変形して液密的に結束させて管束（［）
を形成する製造方法が提案されていある（特公昭４６−
’Ｉ２２８ｇ公報参照），，
しかるに、上記提案の製造方法は、あらかじめ多数の冷
媒管（ａ）・・・を端部スリーブ（０）内を満たすよう
に挿入する必要があり、この挿入作業に手間がかかるこ
と、および各冷媒管端部（ａ１）の断面はちの巣状の変
形が均一にできない次点があった。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a water heat exchanger.
The present invention relates to a method of binding each end of a large number of bundled refrigerant pipes by brazing. In general, water heat exchangers with multiple pipe lengths are constructed by inserting multiple refrigerant pipes into a cylindrical outer pipe and attaching each end of the refrigerant pipes to the outer pipe end in a liquid-tight manner. The cooling water introduced into the outer tube exchanges heat with the refrigerant. By the way, in such a heat exchanger, if a large number (for example, several hundred to several thousand) of small diameter caterpillar tubes (for example, outer diameter 1 mm) are used as refrigerant tubes, the heat flow through the heat exchanger can be improved. Since the outer diameter and length can be made smaller while keeping the heat exchanger constant, it is possible to make the heat exchanger more compact. However, since there are a large number of refrigerant pipes in this product, there is a problem in that the number of manufacturing steps increases significantly if each refrigerant pipe is attached to the end of the outer pipe. In order to solve this problem, for example, as shown in FIG. the end (a1) of a) is inserted into an end sleeve (c) which is fitted tightly into a cylindrical metal can (b);
Silicone oil heated in the hot plate (d) is introduced into the refrigerant pipe end (a1)..., and air is discharged from the inlet (c) of the metal can (b). ) by keeping the interior in a low vacuum state, the refrigerant pipe end (a1) is softened,
As a result, each zero-fold tube end (a1) is deformed into a honeycomb cross section and is liquid-tightly bound to form a tube bundle ([)
A manufacturing method has been proposed to form
However, in the manufacturing method proposed above, it is necessary to insert a large number of refrigerant pipes (a) in advance so as to fill the end sleeve (0), and this insertion work is time-consuming. There was a runner-up problem in that the cross-sectional honeycomb-like deformation of each refrigerant pipe end (a1) could not be made uniform.
そこで、本発明はかかる点に鑑みてなされたものであり
、多数の冷媒管の各端部を簡単方法によって確実に液密
的に結束することにより、コンパクトな水用熱交換器の
製造を簡易に行うことを可能にすることを目的とするも
のである。Therefore, the present invention has been made in view of these points, and it is possible to easily manufacture a compact water heat exchanger by reliably and liquid-tightly binding each end of a large number of refrigerant pipes using a simple method. The purpose is to make it possible to carry out the following tasks.
この目的を達成するため、本発明の製造方法は、多数の
冷媒管を該冷媒管表面に密着された軟ロウ層を介して順
次積上げて断面ほぼ円形状に束ねられた管束を形成し、
次いで、該管束を加熱するとともに管束の外周を内方に
加圧することにより溶融した軟ロウ層を各冷媒管間の隙
間に充填することを特徴とするものである。このことに
より、軟ロウ層で冷媒管間の液蜜製を確保しながら冷媒
管を結束するようにしたものである。In order to achieve this object, the manufacturing method of the present invention sequentially stacks a large number of refrigerant tubes with a soft wax layer closely attached to the surface of the refrigerant tubes to form a bundle of tubes having a substantially circular cross section.
Next, the tube bundle is heated and the outer periphery of the tube bundle is pressurized inward to fill the gaps between the refrigerant tubes with a melted soft wax layer. This allows the refrigerant pipes to be bound together while ensuring the liquid consistency between the refrigerant pipes with the soft wax layer.
以下、本発明の実施例を図面に基づいて詳細に説明する
。Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図ないし第５図は、本発明を多管式水用熱交換器に
適用した場合の実施例を示す。第１図において、（１）
は筒上の外管、（２）は該外管に（′１）に挿入されか
つ各端部（３）が外管（１）の各端部’１ａ）にロウ付
けされた管束、（４ａ）．＜４ｉ＋’Ｈｔ：．！．７４
はそれぞれ外管端部（１ａ）．（１ａ）にろう付けされ
た接続管であり、上記外管端部（’ｌａ）．（’ｌｉｔ
）には吸水管（５）および排水管（６）がそれぞれ接続
されている。而して、冷媒を接続管（４ａ）から管束（
２）を通して接続管（４ｂ）に流通させるとともに、冷
却水を給水管（５）から外管（１）内に導き排水管（６
）から排水することにより、管束（２）の冷媒と外管（
１）の冷却水とを熱交換するようにしている。1 to 5 show an embodiment in which the present invention is applied to a multi-tubular water heat exchanger. In Figure 1, (1)
(2) is an outer tube on a cylinder, (2) is a tube bundle inserted into the outer tube ('1) and each end (3) is brazed to each end '1a) of the outer tube (1); 4a). <4i+'Ht:. ! ．． 74
are the outer tube ends (1a), respectively. (1a) is a connecting pipe which is brazed to the outer pipe end ('la). ('lit
) are connected to a water suction pipe (5) and a drain pipe (6), respectively. Thus, the refrigerant is transferred from the connecting pipe (4a) to the tube bundle (
2) to the connecting pipe (4b), and the cooling water is guided from the water supply pipe (5) into the outer pipe (1) through the drain pipe (6).
), the refrigerant in tube bundle (2) and the outer tube (
1) It is designed to exchange heat with the cooling water.
上記管束（２）の冷媒管（７）は、耐蝕性に優れた合成
樹脂であるネロフロン性キャピラリチューブで公正され
ているため、腐れ代を考慮する必要がなく、肉厚を極め
て薄くすることが可能である。従って胴に比べて熱伝導
率の劣るネオフロンを材料としているにもかかわらず熱
抵抗が減少し充分ね熱貫流率を確保できうこととなる。The refrigerant tubes (7) of the tube bundle (2) are made of Nerofluorocarbon capillary tubes, which are synthetic resins with excellent corrosion resistance, so there is no need to consider corrosion allowance, and the wall thickness can be made extremely thin. It is possible. Therefore, even though the material is made of neofron, which has a lower thermal conductivity than the body, the thermal resistance is reduced and a sufficient heat transmission coefficient can be ensured.
尚、冷媒管（７）の外形は、０．１ｍｍより小さい場合
には製造することがむずかしく且つ肉厚（０．０１２ｌ
ｌｌ１１１）も薄くなることから０．１ｍｍ以上が適当
であり、一方、０．２ＩＩｍより大きくすると肉厚（０
．０２５＋ｍｎ） も厚くなることから、熱伝導率 （
ネオフロンは０．２ｋａｌンは０．２ ｋｃａｌ ．．
’ ｍｌ＋’ｃて（１７Ｊる）による熱抵抗が大きくな
るので、１−０．２ｌｉｍの範囲内の適当な値を選ぶの
が望ましい。In addition, if the outer diameter of the refrigerant pipe (7) is smaller than 0.1 mm, it is difficult to manufacture and the wall thickness (0.012 l) is smaller than 0.1 mm.
ll111) is also thinner, so a thickness of 0.1 mm or more is appropriate; on the other hand, if it is larger than 0.2 IIm, the wall thickness (0
．． 025+mn) also becomes thicker, so the thermal conductivity (
Neoflon is 0.2 kcal. ．．
Since the thermal resistance due to 'ml+'c (17J) becomes large, it is desirable to select an appropriate value within the range of 1-0.2lim.
下記第１表に参考例として、１馬力用の蒸発器を設計す
る場合の使用を示す。尚、その際の設計条件を第２表に
示す。Table 1 below shows the use when designing a 1 horsepower evaporator as a reference example. The design conditions at that time are shown in Table 2.
そして、上記管束（２）は下記のような手順によって製
造される。すなわち、先ず、第２図に示すように、複数
本（図では３本）の樹脂製キャピラリ管よりなる冷媒管
（７）・・・を並行に並べたのら該冷媒管（７）・・・
の各端部７ ａ）上面に溶融した軟ろう材を滴下して軟
ロウ層（８）を溶着する。The tube bundle (2) is manufactured by the following procedure. That is, as shown in FIG. 2, first, a plurality of (three in the figure) refrigerant tubes (7) made of resin capillary tubes are arranged in parallel, and then the refrigerant tubes (7)...・
a) Drop molten soft solder material onto the top surface to weld the soft solder layer (8).
次いで、第３図に示すように、上記軟ロウ層（８）上面
に同様に冷媒管（７）・・・と軟ロウ層（ε３）とを順
次積上げることにより、第４図に示すように断面ほぼ円
形状に束ねられた管束（２）を形成する。Next, as shown in FIG. 3, the refrigerant pipes (7)... and the soft wax layer (ε3) are sequentially stacked on the upper surface of the soft wax layer (8), thereby forming a structure as shown in FIG. 4. A tube bundle (2) having a substantially circular cross section is formed.
しかる後、第５図に示すように、管束（２）の先端部（
３ａ）に火炎の輻射を遮断して、軟ロウ層（８）の過熱
を防止する耐火プレート（９）を１人したのち該先端部
（３ａ）をバーナーによって加熱する。この際、管束（
２）に溶着した軟ロウ層（８）・・・が溶け落ちない程
度に加熱するようにする。そして、該軟ロウ層（８）が
軟化して管束（２）の結束力が緩んだ瞬間に図に示すよ
うに色束端部（３）の軟ロウ層（８）に対応する部分に
紐（１０） を巻きつけて該紐１０）を締め１げること
により管束（２）の外周を内方にほぼ均に加圧し、この
ことにより軟化した軟ロウ層（８）・・を各冷奴管（７
）間の隙間に充填する。After that, as shown in FIG. 5, the tip of the tube bundle (2) (
3a) is provided with a fireproof plate (9) for blocking flame radiation and preventing overheating of the soft wax layer (8), and then the tip (3a) is heated with a burner. At this time, the tube bundle (
2) Be sure to heat to such an extent that the soft wax layer (8) welded to the surface does not melt off. At the moment when the soft wax layer (8) softens and the binding force of the tube bundle (2) loosens, the string is attached to the part of the color bundle end (3) corresponding to the soft wax layer (8) as shown in the figure. (10) and tightening the string 10), the outer periphery of the tube bundle (2) is pressurized almost uniformly inward, thereby softening the soft wax layer (8) into each cold tube bundle (2). Pipe (7
) to fill in the gaps between them.
その後、加熱を中止して管束（２）を自然放冷すること
により、上記軟体ロウ層（８）を凝固させて冷媒管端部
（７ａ）を液密的に結束させる。Thereafter, heating is stopped and the tube bundle (2) is allowed to cool naturally, thereby solidifying the soft wax layer (8) and binding the refrigerant tube ends (7a) in a liquid-tight manner.
したがって、このようにして得られた菅束（２）は、複
数本の冷媒管（７）・・と軟ロウ層（８）とを順次積上
げて管束（２）を形成するので、冷媒管（７）の本数が
多数本であるにも拘わらず、簡単に束ねることができる
。Therefore, the tube bundle (2) obtained in this way is formed by sequentially stacking a plurality of refrigerant tubes (7) and the soft wax layer (8). 7) Even though there are a large number of books, they can be easily bundled.
また、管束先端部（３ｄ）の加熱により軟ロウ層（８）
・・・が軟化されるとともに紐（ＩＯ）の締め上げによ
り該軟ロウ層（８）・・・が各冷媒管（７）間の隙間に
均一に充填されるので、冷媒管（７）・・・が曲がって
いたり冷媒管（７）間に異物が混入してもロウ付け部に
ピンホールが形成されることはなく、よって冷媒管端部
（３）・・・を確実に液密的に結束することができる。In addition, the soft wax layer (8) is formed by heating the tube bundle tip (3d).
... is softened and the soft wax layer (8) is evenly filled into the gaps between the refrigerant pipes (7) by tightening the string (IO), so that the refrigerant pipes (7) and Even if ... is bent or foreign matter gets mixed in between the refrigerant pipes (7), pinholes will not be formed in the brazed parts, thus ensuring that the ends of the refrigerant pipes (3) are liquid-tight. can be tied to.
尚、上記のようにして製造した管束（２）を外管（１）
に挿入し、該管束端部（３），（３）を接続管（４ａ）
，（４ｂ）とともに外管端部（１ａ），（１ａ）にロ
ウ付けすることによって熱交換器を製造する工程を以下
に説明する。Note that the tube bundle (2) manufactured as described above is used as the outer tube (1).
and connect the tube bundle ends (3), (3) to the connecting tube (4a).
, (4b) and the outer tube ends (1a), (1a) will be described below.
まず、第７図に示すように、上記管束（２）のロウ付け
部と外管端部（１ａ）との間に、ハンダゴテにより、溶
融した軟ロウ材を少しずつ盛ることにより両者間に軟ロ
ウ材を溶着してシール部（１１）を形成する。First, as shown in FIG. 7, a soldering iron is used to gradually apply molten soft solder material between the brazed part of the tube bundle (2) and the outer tube end (1a) to soften the gap between the two. A seal portion (11) is formed by welding the brazing material.
しかる後、バーナー（図示せず）により上記シール部（
１１）を、該シール部（１つ）の軟ロウ材が溶け落ちな
い程度に軟化するように加熱する。After that, the above seal part (
11) is heated so that the soft solder material in the seal portion (one) is softened to the extent that it does not melt.
このことにより、軟ロウ材を盛る際にシール部（１１）
内に形成されていた軟ロウ材の層間隙間は、溶融した軟
ロウ材によって埋められるため、第８図に示すように均
一なシール部（１１）が得られる。しかし、該シール部
（１１）と管束（２）のロウ付け部とは管束（２）の外
周部に位置する冷媒管（７）・・・に邪魔されて離間し
ており、両者の間には空胴部（１２）が形成されている
。この状態で冷媒用配管と外管（１）とを接続する接続
管（４ｂ）を外管（１）に取付ける。該接続管（４ｂ）
は、第９図に示すように一端に先端に向って広がり外管
端部（１ａ）に外＞：可能なフレア部を有し、他端に冷
媒用配管が接続される配管接続部を有しており、第９図
の状態で該フレア部を上記シール部（１１）に押し付け
て第１０図に示すように外管端部（１ａ）に勘合するこ
とにより、加熱により溶融しているシール部（１１）の
軟ロウ材は管束ロウ付け部周囲の空胴部（１２）に圧入
充填されう。このことにより、管束（２）の先端部（３
）は外管端部（ｌａ）に液密的に取付けられる。As a result, when filling the soft solder material, the sealing part (11)
The gap between the layers of the soft solder material that had been formed therein is filled with the molten soft solder material, so that a uniform seal portion (11) is obtained as shown in FIG. However, the seal part (11) and the brazed part of the tube bundle (2) are separated by the refrigerant pipes (7) located on the outer periphery of the tube bundle (2), and there is a gap between them. A cavity (12) is formed. In this state, a connecting pipe (4b) connecting the refrigerant pipe and the outer pipe (1) is attached to the outer pipe (1). The connecting pipe (4b)
As shown in Fig. 9, the pipe has a flared part at one end that widens toward the tip at the outer tube end (1a), and has a pipe connection part to which the refrigerant pipe is connected at the other end. By pressing the flared part against the seal part (11) in the state shown in Fig. 9 and fitting it to the outer tube end part (1a) as shown in Fig. 10, the seal is melted by heating. The soft solder material of the section (11) is press-fitted into the cavity section (12) around the tube bundle brazing section. As a result, the distal end (3) of the tube bundle (2)
) is attached in a liquid-tight manner to the outer tube end (la).
さらに、第１１図に示すように上記接続管（４ｂ）のフ
レア部の外周にハンダゴテにより軟ロウ材を上記シール
部（１１）に連続せしめて溶着する。そして、この溶着
部をバーナーにより該溶着部の軟ロウ材が溶け落ちない
程度に軟化するように加熱することにより、溶融した軟
ロウ材で接続菅（４ｂ）のフレア部を外管端部（１ａ）
に液密的に取付ける。Furthermore, as shown in FIG. 11, a soft solder material is welded to the outer periphery of the flared portion of the connecting tube (4b) so as to be continuous with the sealing portion (11) using a soldering iron. Then, by heating this welded part with a burner so that the soft solder material in the welded part is softened to the extent that it does not melt, the flared part of the connecting tube (4b) is attached to the outer tube end ( 1a)
Installed in a liquid-tight manner.
したがって、冷媒管（７）間は管束（２）のロウ付け部
の軟ロウ材により互いに液密的に結束されるとともに、
該管束ロウ付け部と外管端部（１ａ）との間に溶着され
たのちバーナーの加熱により軟化しながら接続管（４ｂ
）のフレア部の押圧によって上記管束ロウ付け部周囲の
空胴部（１２）に圧入充填されたシール部（１１）によ
って上記管束（２）の先端部（３）は外管端部（１ａ）
に液密的に取付けられるので、多数本のキャピラリ管よ
りなる冷媒管（７）を組込んだ多管式の水用熱交換器を
製造することができ、外管（１）の直系を小さく、しか
もその長さを短くでき、その分熱交操器のコンパクト化
を図ることができる。Therefore, the refrigerant pipes (7) are liquid-tightly bound together by the soft brazing material of the brazed portion of the pipe bundle (2), and
After being welded between the tube bundle brazing part and the outer tube end (1a), the connecting tube (4b) is softened by heating with a burner.
) The tip (3) of the tube bundle (2) is connected to the outer tube end (1a) by the sealing portion (11) which is press-fitted into the cavity (12) around the tube bundle brazing portion by the pressure of the flare portion of the tube bundle (2).
Since it can be installed in a liquid-tight manner, it is possible to manufacture a multi-tube water heat exchanger that incorporates refrigerant pipes (7) consisting of multiple capillary pipes, and the direct line of the outer pipe (1) can be made smaller. Moreover, the length can be shortened, and the heat exchanger can be made more compact.
以上説明したように、本発明の製造方法によれば、多数
の冷媒管を該冷媒管表面に溶着された軟ロウ層を介して
順積上げて断面ほぼ円形状に束ねられた管束を形成し、
次いで、該管束を加熱するとともに管束の外周を内方に
加圧することにより溶融した軟ロウ層を軟ロウ層を各冷
媒管間の隙間に充填するという簡単な方法により、上記
軟ろう層で多数の冷媒管の端部を確実に液密的に結束す
ることができるので、コンパクトな水用熱交換器を簡易
に製造することができるものである。As explained above, according to the manufacturing method of the present invention, a large number of refrigerant tubes are stacked up in order through a soft wax layer welded to the surface of the refrigerant tubes to form a tube bundle having a substantially circular cross section,
Next, by heating the tube bundle and inwardly pressurizing the outer periphery of the tube bundle, a melted soft wax layer is filled into the gaps between each refrigerant tube. Since the ends of the refrigerant pipes can be reliably tied together in a liquid-tight manner, a compact water heat exchanger can be manufactured easily.
第１図ないし第５図は本発明に係る実施例を示し、第１
図は多管式水用熱交換器を示す断面図、第２図ないし第
５図は管束の製造手順を示す工程説明図、第６図は従来
例を示す断面図、第７図はシール部を形成した状態を示
す部分断面図、第３図は第７図における■１−■線拡大
断面図、第９図および第１０図はそれぞれ接続管のフレ
ア部を外管端部に勘合する前後における状態を示す部分
断面図、第１１図は接続管フレア部の外周に軟ロウ材を
溶着した状態を示す部分断面図である。
（２）・・・管束、（７）・・・冷媒菅、（８）・・・
軟ロウ層。1 to 5 show embodiments according to the present invention;
The figure is a sectional view showing a multi-tube water heat exchanger, Figures 2 to 5 are process explanatory diagrams showing the manufacturing procedure of the tube bundle, Figure 6 is a sectional view showing a conventional example, and Figure 7 is a seal section. 3 is an enlarged sectional view taken along the line ■1-■ in FIG. 7, and FIGS. 9 and 10 are views before and after fitting the flare part of the connecting pipe to the end of the outer pipe, respectively. FIG. 11 is a partial sectional view showing a state in which a soft brazing material is welded to the outer periphery of the connecting tube flare portion. (2)...Pipe bundle, (7)...Refrigerant tube, (8)...
Soft wax layer.
Claims (1)
に溶着された軟ロウ層（０）を介して順次積上げて断面
ほぼ円形状に束ねられた管束（２）を形成し、次いで、
該管束（２）を加然するとともに管束（２）の外周を内
方に加圧することにより溶融した軟ロウ層（８）を各冷
媒管（７）間の隙間に充填することを特徴とする水用熱
交換器の製造方法。(1) A tube bundle (2) in which a large number of refrigerant tubes (7) are stacked one after another with a soft wax layer (0) welded to the surface of the refrigerant color (7) and bundled into a substantially circular cross section. form, then
The tube bundle (2) is heated and the outer periphery of the tube bundle (2) is pressurized inward to fill the gap between each refrigerant tube (7) with a melted soft wax layer (8). A method for manufacturing a water heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8328283A JPS59208395A (en) | 1983-05-11 | 1983-05-11 | Manufacture of heat exchanger for water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8328283A JPS59208395A (en) | 1983-05-11 | 1983-05-11 | Manufacture of heat exchanger for water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59208395A true JPS59208395A (en) | 1984-11-26 |
Family
ID=13798015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8328283A Pending JPS59208395A (en) | 1983-05-11 | 1983-05-11 | Manufacture of heat exchanger for water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59208395A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735075A (en) * | 2011-04-14 | 2012-10-17 | 林德股份公司 | Heat exchanger with central pipe and ring channel |
-
1983
- 1983-05-11 JP JP8328283A patent/JPS59208395A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735075A (en) * | 2011-04-14 | 2012-10-17 | 林德股份公司 | Heat exchanger with central pipe and ring channel |
| CN102735075B (en) * | 2011-04-14 | 2016-12-14 | 林德股份公司 | There is the heat exchanger of core pipe and cannelure |
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