JP2000199643A - Fin for heat exchanger and processing thereof - Google Patents
Fin for heat exchanger and processing thereofInfo
- Publication number
- JP2000199643A JP2000199643A JP2000021077A JP2000021077A JP2000199643A JP 2000199643 A JP2000199643 A JP 2000199643A JP 2000021077 A JP2000021077 A JP 2000021077A JP 2000021077 A JP2000021077 A JP 2000021077A JP 2000199643 A JP2000199643 A JP 2000199643A
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- transfer tubes
- fin
- heat exchanger
- holes
- 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
Landscapes
- Details Of Fluid Heaters (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガスや灯油等を熱源と
する温水器の熱交換器に関し、さらに詳しくは、伝熱フ
ィンと伝熱管接合部のフィン開口形状の改善に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger for a water heater using gas, kerosene or the like as a heat source, and more particularly to an improvement in a fin opening shape between a heat transfer fin and a heat transfer tube joint.
【０００２】[0002]
【従来の技術】従来、複数枚のフィンを有する伝熱管を
組み合わせたフィン式熱交換器は、熱効率が良く、小型
化できることから、温水器で多用されている。2. Description of the Related Art Hitherto, a fin-type heat exchanger in which a heat transfer tube having a plurality of fins is combined has been frequently used in a water heater because of its high heat efficiency and downsizing.
【０００３】近年、ガスや灯油を熱源とする給湯器で
は、器具の小型化を図るため、一つの熱源で給湯と風呂
の加熱追焚を行う、いわゆる、１缶２回路式のフィン式
熱交換器が登場し、器具の小型化だけでなく、構成の簡
略化による低コスト化も可能となっている。[0003] In recent years, in a water heater using gas or kerosene as a heat source, a so-called one-can, two-circuit fin heat exchanger in which hot water is supplied and a bath is heated and reheated with a single heat source in order to downsize the appliance. With the advent of vessels, it has become possible not only to reduce the size of instruments but also to reduce costs by simplifying the configuration.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記した１缶
２回路式のフィン式熱交換器では、図７に示すように、
複数本の伝熱管48,49 を貫通させるためフィン50に設け
る穴51は、図８に示すように、ダルマ型の断面形状を有
するパンチ用金型52を使用して開口していた。However, in the one-can, two-circuit fin heat exchanger described above, as shown in FIG.
As shown in FIG. 8, a hole 51 provided in the fin 50 for penetrating the plurality of heat transfer tubes 48, 49 was opened by using a punch mold 52 having a Dharma-shaped cross-sectional shape.
【０００５】かかるパンチ用金型52は、図示するよう
に、伝熱管48,49 の外径と等しい円形金型部分52a,52b
同士を狭幅の括れ部52c を介して連設したものであり、
括れ部52c の両側部は小さな円弧を形成している。[0005] As shown in the figure, the punch mold 52 has circular mold portions 52a and 52b having the same outer diameter as the heat transfer tubes 48 and 49.
Are connected to each other via a narrow constricted portion 52c.
Both sides of the constricted portion 52c form a small arc.
【０００６】従って、２本の伝熱管48,49 をフィン50に
貫通させた際、パンチ用金型52の構成上、円弧の接触部
に大きな隙間を生じ、伝熱管48,49 とフィン50を密着さ
せるロウ付けの際、毛細管現象によるロウ材の回りが悪
くなり、伝熱管48,49 同士の密着ができなくなる不具合
を発生し、このため、所要の熱効率が得られない、或い
は、一方の伝熱管48又は49内の加熱流体が沸騰するなど
の問題があった。Accordingly, when the two heat transfer tubes 48, 49 are passed through the fins 50, a large gap is formed at the contact portion of the arc due to the configuration of the punching die 52, and the heat transfer tubes 48, 49 and the fins 50 are connected. At the time of brazing to make close contact, the circumference of the brazing material becomes poor due to the capillary phenomenon, causing a problem that the heat transfer tubes 48 and 49 cannot be in close contact with each other, so that the required heat efficiency cannot be obtained or There is a problem that the heating fluid in the heat pipe 48 or 49 boils.
【０００７】本発明は、１缶２回路式のフィン式熱交換
器などにおける伝熱管同士の密着を確実に行い、熱効率
の改善と沸騰等の危険な現象を未然に防止する熱交換器
のフィン及びその加工方法を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention provides a fin of a heat exchanger which ensures the close contact between heat transfer tubes in a one-can, two-circuit fin-type heat exchanger, etc., thereby improving thermal efficiency and preventing dangerous phenomena such as boiling. And a processing method thereof.
【０００８】[0008]
【課題を解決するための手段】本発明は、互いに異なる
流路に接続される二つの伝熱管を備え、この両伝熱管を
並設密着して多数の共用するフィンにロウ付けして１缶
２回路式の熱交換器を形成するものにおいて、二つの伝
熱管の貫通孔は、それぞれ、共用フィンに貫通させる伝
熱管の外径と略等しい円形断面とするとともに、互いに
伝熱管が密着する部分を重合させて連通させ、同連通部
の両側面に、両貫通孔の隣接する円弧によって挟まれる
鋭角のエッジ部を、それぞれ形成したことを特徴とする
熱交換器のフィンに係るものである。SUMMARY OF THE INVENTION The present invention comprises two heat transfer tubes connected to different flow paths, and the two heat transfer tubes are juxtaposed and closely attached to a number of commonly used fins to form one can. In the two-circuit type heat exchanger, the through holes of the two heat transfer tubes each have a circular cross section substantially equal to the outer diameter of the heat transfer tube penetrated by the common fin, and a portion where the heat transfer tubes are in close contact with each other. The present invention relates to a fin of a heat exchanger, characterized in that fins are superimposed to communicate with each other, and on both side surfaces of the communicating portion, sharp edge portions sandwiched by arcs adjacent to both through holes are formed.
【０００９】本発明は、また、互いに異なる流路に接続
される二つの伝熱管を備え、この両伝熱管を並設密着し
て多数の共用するフィンにロウ付けして１缶２回路式の
熱交換器を形成するものにおいて、二つの密着する伝熱
管を貫通させる貫通孔を、それぞれ、一つずつ、別工程
で孔開け加工することを特徴とする熱交換器のフィン加
工方法に係るものである。The present invention further comprises two heat transfer tubes connected to mutually different flow paths, and the two heat transfer tubes are juxtaposed and closely attached and brazed to a number of common fins to form a one-can two-circuit type. A method for forming a heat exchanger, wherein a through-hole for penetrating two heat transfer tubes that are in close contact with each other is perforated in a separate process, one by one. It is.
【００１０】上記フィン加工方法において、二つの密着
する伝熱管を貫通させる貫通孔は、それぞれ、別工程の
プレス加工で孔開け加工することもできる。In the above-mentioned fin forming method, the through holes for penetrating the two heat transfer tubes that are in close contact with each other may be formed by press working in separate steps.
【００１１】[0011]
【実施例】以下、添付図に示す実施例を参照して、本発
明を具体的に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the embodiments shown in the accompanying drawings.
【００１２】図１に本発明に係るフィンからなる熱交換
器を具備する１缶２回路式風呂釜Ａの全体構成が概念的
に示されており、缶体10内において、風呂用伝熱管12と
給湯用伝熱管13とが、並設した多数のフィン11を共用す
べく貫通している。FIG. 1 conceptually shows the overall structure of a one-can, two-circuit bath kettle A provided with a heat exchanger comprising fins according to the present invention. And a heat transfer pipe 13 for hot water supply penetrate to share a large number of fins 11 arranged in parallel.
【００１３】また、缶体10の下部には、同缶体10を加熱
するバーナ14が配設されており、同バーナ14への燃料供
給路15には、電磁弁16と比例弁17とが取付けられてい
る。A burner 14 for heating the can 10 is provided below the can 10, and a solenoid valve 16 and a proportional valve 17 are provided in a fuel supply path 15 to the burner 14. Installed.
【００１４】さらに、風呂用伝熱管12は、中途に循環ポ
ンプ20を取付けた循環流路21を介して浴槽22に連通連結
されている。Further, the bath heat transfer pipe 12 is connected to a bathtub 22 through a circulation flow path 21 in which a circulation pump 20 is mounted halfway.
【００１５】一方、給湯用伝熱管13の水流入口23には給
水配管24が接続されており、出湯口25には給湯配管26が
接続されている。On the other hand, a water supply pipe 24 is connected to the water inlet 23 of the heat transfer pipe 13 for hot water supply, and a hot water supply pipe 26 is connected to the outlet 25.
【００１６】また、給水配管24には水量検出器27と給水
温度検出器29が取付けられており、一方、給湯配管26に
は給湯温度検出器28が取付けられている。A water supply detector 27 and a water supply temperature detector 29 are mounted on the water supply pipe 24, while a water supply temperature detector 28 is mounted on the hot water supply pipe 26.
【００１７】なお、図１において、Ｃは制御装置を示
し、水量検出器27や給湯温度検出器28の検出信号に基づ
いて、電磁弁16や、比例弁17や、循環ポンプ20の駆動を
制御するものである。また、Ｒはリモコンである。In FIG. 1, C indicates a control device, which controls the operation of the solenoid valve 16, the proportional valve 17, and the circulation pump 20 based on detection signals of a water amount detector 27 and a hot water supply temperature detector 28. Is what you do. R is a remote controller.
【００１８】かかる構成を有する１缶２回路式風呂釜Ａ
は、バーナ14の燃焼によって、単一の缶体10を用いて、
浴槽22の追焚を行うことができるのみならず、シャワー
や台所等へ給湯配管26を通して出湯することができる。A 1-can 2-circuit bath kettle A having such a configuration
By using a single can body 10 by burning the burner 14,
Not only can the bathtub 22 be refired, but also hot water can be supplied to a shower or kitchen through the hot water supply pipe 26.
【００１９】本発明は、上記した構成を有する熱交換器
において、伝熱管同士、即ち、本実施例では、風呂用伝
熱管12と給湯用伝熱管13との間の密着度を向上し、所要
の熱効率を維持し、かつ向上できる構造としたことに特
徴を有する。According to the present invention, in the heat exchanger having the above structure, the degree of adhesion between the heat transfer tubes, that is, in this embodiment, between the bath heat transfer tube 12 and the hot water supply heat transfer tube 13 is improved. It is characterized in that it has a structure that can maintain and improve the thermal efficiency.
【００２０】以下、添付図である、図２〜図４を参照し
て具体的に説明する。Hereinafter, a specific description will be given with reference to FIGS.
【００２１】図２及び図３に示すように、矩形板状のフ
ィン11は、幅方向に間隔を開けて、上下方向に一対の伝
熱管貫通孔30,31 を設けており、両貫通孔30,31 内に、
上記した風呂用伝熱管12と給湯用伝熱管13とが貫通して
いる。As shown in FIGS. 2 and 3, the rectangular plate-shaped fin 11 is provided with a pair of heat transfer tube through holes 30 and 31 in the vertical direction at intervals in the width direction. , 31 within
The above-described bath heat transfer tube 12 and hot water supply heat transfer tube 13 penetrate.
【００２２】図３に示すように、二つの貫通孔30,31
は、それぞれ、貫通させる伝熱管12,13 の外径と略等し
い円形断面とするとともに、互いに伝熱管12,13 が密着
する部分を重合させて連通させ狭幅の連通部32を形成し
ている。As shown in FIG. 3, two through holes 30, 31
Have a circular cross section substantially equal to the outer diameter of the heat transfer tubes 12 and 13 to be penetrated, and form a narrow width communicating portion 32 by overlapping portions where the heat transfer tubes 12 and 13 are in close contact with each other to communicate with each other. .
【００２３】また、連通部32は、その両側面に、両貫通
孔30,31 の隣接する円弧30a,31a によって挟まれる鋭角
のエッジ部33,34 をそれぞれ形成している。The communicating portion 32 has, on both side surfaces thereof, acute-angled edge portions 33 and 34 sandwiched between adjacent arcs 30a and 31a of the through holes 30 and 31, respectively.
【００２４】さらに、図２及び図３において、貫通孔31
の上部には、棒状のろう材 (図示せず) を挿通するろう
材貫通孔35が設けられている。Further, in FIG. 2 and FIG.
In the upper part, a brazing material through hole 35 through which a rod-shaped brazing material (not shown) is inserted is provided.
【００２５】かかる構成によって、ろう付けの際に、溶
けたろう材が、伝熱管12,13 の外周に沿って流れるとと
もに、毛細管現象によって、連通部32の両側面に形成さ
れる三角形状のエッジ部33,34 の先端まで回るため、伝
熱管12,13 同士の密着度を向上し、所要の熱効率が維持
・向上できるだけでなく、沸騰の危険も未然に防止する
ことが可能となる。With this configuration, at the time of brazing, the melted brazing material flows along the outer circumference of the heat transfer tubes 12 and 13, and the triangular edge portions formed on both side surfaces of the communication portion 32 by the capillary phenomenon. Since it turns to the tip of 33, 34, the degree of adhesion between the heat transfer tubes 12, 13 is improved, and not only the required thermal efficiency can be maintained and improved, but also the danger of boiling can be prevented.
【００２６】図４に他の実施例を示す。本実施例では、
風呂用伝熱管12用の貫通孔30を給湯用伝熱管13の貫通孔
31より小径としたこと、及び、ろう付けをより確実に行
うために、風呂用伝熱管12用の貫通孔の上部にろう材貫
通孔36を設けるのみならず、連通部32の一側エッジ部33
にもろう材貫通孔37を設けたことに特徴を有する。FIG. 4 shows another embodiment. In this embodiment,
The through hole 30 for the heat transfer tube 12 for the bath and the through hole for the heat transfer tube 13 for the hot water supply
In order to make the diameter smaller than 31, and to perform brazing more reliably, not only the brazing material through hole 36 is provided above the through hole for the heat transfer tube 12 for the bath, but also one side edge portion of the communication portion 32. 33
It is also characterized in that a brazing material through hole 37 is provided.
【００２７】かかる構成においても、ろう付けの際に、
溶けたろう材が、伝熱管12,13 の外周に沿って流れると
ともに、毛細管現象によって、連通部32の両側面に形成
される三角形状のエッジ部33,34 の先端まで回るため、
伝熱管12,13 同士の密着度を向上し、所要の熱効率が維
持・向上できるだけでなく、沸騰の危険も未然に防止す
ることが可能となる。[0027] Even in such a configuration, when brazing,
As the melted brazing material flows along the outer circumference of the heat transfer tubes 12 and 13 and turns to the tips of the triangular edges 33 and 34 formed on both sides of the communication portion 32 by capillary action,
The degree of adhesion between the heat transfer tubes 12 and 13 is improved, so that not only the required thermal efficiency can be maintained and improved, but also the danger of boiling can be prevented.
【００２８】さらに、ろう材貫通孔36に配設したろう材
のみならず、ろう材貫通孔37に配設したろう材から溶出
したろうによってもろう付けすることになるので、伝熱
管12,13 同士の密着度をさらに向上することができると
ともに、沸騰の危険もより確実に防止することができ
る。Furthermore, since the brazing is performed not only by the brazing material disposed in the brazing material through hole 36 but also by the brazing material eluted from the brazing material disposed in the brazing material through hole 37, the heat transfer tubes 12 and 13 are brazed. The degree of adhesion between them can be further improved, and the danger of boiling can be more reliably prevented.
【００２９】次に、図５及び図６を参照して、上記した
風呂用伝熱管12と給湯用伝熱管13とを貫通させる貫通孔
30,31 をフィン11に設けるフィン加工方法について具体
的に説明する。Next, with reference to FIG. 5 and FIG. 6, through-holes through which the above-described bath heat transfer tubes 12 and hot water supply heat transfer tubes 13 pass.
A fin processing method for providing the fins 30, 31 on the fin 11 will be specifically described.
【００３０】図５に、上記した貫通孔30,31 を含めて熱
交換器として必要な部材を取付けるための貫通孔をフィ
ン11に開けるためのパンチ機構Ｂを示す。FIG. 5 shows a punch mechanism B for forming through holes in the fins 11 for mounting members required as heat exchangers, including the through holes 30 and 31 described above.
【００３１】図示するように、パンチ機構Ｂは、コンベ
ヤ上を流れる帯状の板金Ｐの上方に、同板金Ｃの流れ方
向に沿って一定の間隔を開けて配設した、複数のパンチ
用金型B1〜B7から構成されている。As shown in the figure, a punch mechanism B comprises a plurality of punch dies, which are disposed above a belt-shaped sheet metal P flowing on a conveyor at a predetermined interval in the flow direction of the sheet metal C. It is composed of B1 to B7.
【００３２】また、各パンチ用金型B1〜B7は、その下面
に、異なった種類のパンチ用ポンチを取付けている。Further, different types of punches are mounted on the lower surfaces of the punching dies B1 to B7.
【００３３】そして、図６に示すように、第１工程〜第
１工程の各工程において、各パンチ用金型B1〜B7を、順
次下降することによって板金Ｃを順次打ち抜き、各種貫
通孔を形成することができる。Then, as shown in FIG. 6, in each of the first to first steps, the sheet metal C is sequentially punched out by sequentially descending the punching dies B1 to B7 to form various through holes. can do.
【００３４】即ち、第１工程において、まず、パンチ用
金型B1を下降して、フィン11の上段に形成される、風呂
用伝熱管12用の貫通孔40と給湯用伝熱管13の貫通孔41を
千鳥状に打ち抜く。That is, in the first step, first, the punching die B1 is lowered, and the through hole 40 for the heat transfer tube 12 for the bath and the through hole for the heat transfer tube 13 for the hot water supply formed in the upper stage of the fin 11 are formed. Punch 41 in a zigzag pattern.
【００３５】第２工程において、パンチ用金型B2を下降
して、フィン11の下段に形成される、風呂用伝熱管12用
の貫通孔30を打ち抜く。In the second step, the punching die B2 is lowered, and the through hole 30 for the bath heat transfer tube 12 formed in the lower stage of the fin 11 is punched.
【００３６】第３工程において、パンチ用金型B3を下降
して、フィン11の下段に形成される、給湯用伝熱管13用
の貫通孔31を打ち抜く。In the third step, the punching die B3 is lowered to punch out a through hole 31 formed at the lower stage of the fin 11 for the heat transfer tube 13 for hot water supply.
【００３７】この際、二つの貫通孔30,31 を、それぞ
れ、貫通させる伝熱管12,13 の外径と略等しい円形断面
とするとともに、互いに伝熱管12,13 が密着する部分を
重合させて打ち抜くことによって、狭幅の連通部32を形
成することができるとともに、その両側面に、両貫通孔
30,31 の隣接する円弧30a,31a によって挟まれる鋭角の
エッジ部33,34 をそれぞれ形成することができる。At this time, each of the two through holes 30 and 31 has a circular cross section substantially equal to the outer diameter of the heat transfer tubes 12 and 13 to be penetrated, and a portion where the heat transfer tubes 12 and 13 are in close contact with each other is superposed. By punching, a narrow communicating portion 32 can be formed, and both side surfaces thereof have two through holes.
The acute edge portions 33, 34 sandwiched between the adjacent circular arcs 30a, 31a of the 30, 31 can be formed respectively.
【００３８】また、この第３工程において、貫通孔30の
両側肩部に相当する個所に、スリット状の遮熱孔42を形
成する。In the third step, a slit-shaped heat shield hole 42 is formed at a position corresponding to both shoulders of the through hole 30.
【００３９】この遮熱孔42によって、フィン11の上段と
下段とに配設された伝熱管41,30 における吸熱割合を調
整可能とし、熱交換器の結露現象や、過大な熱応力発生
による伝熱管の亀裂発生を防止することができる。The heat shield holes 42 make it possible to adjust the ratio of heat absorption in the heat transfer tubes 41 and 30 disposed at the upper and lower stages of the fins 11, and to reduce the heat transfer due to the condensation phenomenon of the heat exchanger and the generation of excessive thermal stress. Cracks in the heat tube can be prevented.
【００４０】同時に、貫通孔31の下部円弧に沿って山形
状の第１切断孔43を形成するとともに、その両側に切断
用切欠溝44を形成する。At the same time, a first cut-out hole 43 having a mountain shape is formed along the lower circular arc of the through-hole 31, and cut-out notches 44 are formed on both sides thereof.
【００４１】第４工程において、パンチ用金型B4を下降
して、貫通孔30の上部と連設部32の一側に設けたエッジ
部33に、それぞれ、ろう材貫通孔36,37 を形成する。In the fourth step, the punching die B4 is lowered to form brazing material through holes 36 and 37 at the upper portion of the through hole 30 and at the edge portion 33 provided on one side of the continuous portion 32, respectively. I do.
【００４２】また、貫通孔30の回りに遮熱孔42を追加す
る。Further, a heat shield hole 42 is added around the through hole 30.
【００４３】同時に、貫通孔31の下部円弧に沿って山形
状の第２切断孔45を形成するとともに、同第２切断孔45
を第１切断孔43と連通させる。At the same time, a second cut hole 45 having a mountain shape is formed along the lower arc of the through hole 31 and the second cut hole 45 is formed.
Is communicated with the first cutting hole 43.
【００４４】第５工程において、パンチ用金型B5を下降
して、板金Ｐの両側を折曲加工して折曲部45a を形成す
る。In the fifth step, the punch die B5 is lowered, and both sides of the sheet metal P are bent to form bent portions 45a.
【００４５】また、貫通孔40の上部にろう材貫通孔48を
形成する。Further, a brazing material through hole 48 is formed above the through hole 40.
【００４６】第６工程において、パンチ用金型B6を下降
して、貫通孔30の回りにさらに遮熱孔42を追加する。In the sixth step, the punch die B6 is lowered to further add a heat shield hole 42 around the through hole 30.
【００４７】第７工程において、パンチ用金型B7を下降
して、貫通孔31の下部円弧に沿って山形状の第３, 第４
切断孔46,47 を形成するとともに、両切断孔46,47 を隣
接する切断孔43,45 及び切断用切欠44に連通させて、フ
ィン11を形成する。In the seventh step, the punching die B7 is lowered, and the third and fourth peaks are formed along the lower arc of the through hole 31.
The cutting holes 46 and 47 are formed, and the cutting holes 46 and 47 are communicated with the adjacent cutting holes 43 and 45 and the cutting notch 44 to form the fin 11.
【００４８】このように、本実施例では、二つの密着す
る伝熱管12,13 を貫通させる貫通孔30,31 を、それぞ
れ、一つずつ、パンチ用金型Ｂを用いたプレス加工によ
って、別工程で孔開け加工することができるので、貫通
孔30,31 の連設部32の両側部に鋭角のエッジ部33,34 を
具備するフィン11を容易かつ確実に製造することができ
る。As described above, in this embodiment, the through holes 30 and 31 through which the two heat transfer tubes 12 and 13 come into close contact with each other are separately formed by press working using the punching die B. Since piercing can be performed in the process, the fin 11 having the sharp edge portions 33, 34 on both sides of the continuous portion 32 of the through holes 30, 31 can be easily and reliably manufactured.
【００４９】[0049]
【発明の効果】以上説明してきたように、本発明では、
互いに異なる流路に接続される二つの伝熱管を備え、こ
の両伝熱管を並設密着して多数の共用するフィンにロウ
付けして１缶２回路式の熱交換器を形成するものにおい
て、二つの伝熱管の貫通孔は、それぞれ、共用フィンに
貫通させる伝熱管の外径と略等しい円形断面とするとと
もに、互いに伝熱管が密着する部分を重合させて連通さ
せ、同連通部の両側面に、両貫通孔の隣接する円弧によ
って挟まれる鋭角のエッジ部を、それぞれ形成してい
る。As described above, according to the present invention,
A heat exchanger comprising two heat transfer tubes connected to different flow paths, and the two heat transfer tubes being juxtaposed in close contact and brazing to a number of shared fins to form a one-can two-circuit heat exchanger, The through holes of the two heat transfer tubes each have a circular cross section substantially equal to the outer diameter of the heat transfer tube penetrated through the common fin, and the portions where the heat transfer tubes are in close contact with each other are overlapped to communicate with each other, and both side surfaces of the communication portion are formed. In addition, an acute edge portion sandwiched between adjacent arcs of both through holes is formed.
【００５０】従って、ろう付けの際に、溶けたろう材
が、両伝熱管の外周に沿って流れるとともに、毛細管現
象によって、連通部の両側面に形成される三角形状のエ
ッジ部の先端まで回るため、伝熱管同士の密着度を向上
し、所要の熱効率が維持・向上できるだけでなく、沸騰
の危険も未然に防止することが可能となる。Therefore, at the time of brazing, the melted brazing material flows along the outer circumferences of both heat transfer tubes and turns to the tip of a triangular edge formed on both sides of the communicating portion by capillary action. In addition, it is possible to improve the degree of adhesion between the heat transfer tubes, to maintain and improve the required thermal efficiency, and to prevent the risk of boiling before it occurs.
【００５１】また、本発明では、二つの密着する伝熱管
を貫通させる貫通孔は、それぞれ、別工程のプレス加工
で孔開け加工している。In the present invention, the through-holes for penetrating the two heat transfer tubes that are in close contact with each other are formed by press working in separate steps.
【００５２】従って、上記したような、二つの貫通孔の
連設部の両側部に鋭角のエッジ部を具備するフィンを容
易かつ確実に製造することができる。Therefore, it is possible to easily and reliably manufacture the fin having the sharp edge portions on both sides of the continuous portion of the two through holes as described above.
【図１】本発明に係る熱交換器用フィンを具備する１缶
２回路式風呂釜の全体構成説明図である。FIG. 1 is an explanatory view of the overall configuration of a one-can, two-circuit bath kettle provided with a heat exchanger fin according to the present invention.
【図２】熱交換器の内部構造説明図である。FIG. 2 is an explanatory diagram of an internal structure of a heat exchanger.
【図３】同熱交換器のフィンの形状説明図である。FIG. 3 is an explanatory diagram of a shape of a fin of the heat exchanger.
【図４】他の実施例に係る熱交換器のフィンの形状説明
図である。FIG. 4 is an explanatory diagram of a shape of a fin of a heat exchanger according to another embodiment.
【図５】熱交換器のフィンの加工に用いるパンチ用金型
の斜視図である。FIG. 5 is a perspective view of a punch die used for processing fins of a heat exchanger.
【図６】同パンチ用金型によるフィンの加工工程説明図
６ある。FIG. 6 is an explanatory diagram of a fin processing step using the punch die.
【図７】従来の熱交換器フィンの形状説明図である。FIG. 7 is a diagram illustrating the shape of a conventional heat exchanger fin.
【図８】同フィンの加工に用いるパンチ用金型の斜視図
８ある。FIG. 8 is a perspective view of a punch die used for processing the fin.
Ａ １缶２回路式風呂釜 Ｂ パンチ機構 Ｐ 板金 11 フィン 12 風呂用伝熱管 13 給湯用伝熱管 30 貫通孔 30a 円弧 31 貫通孔 31a 円弧 32 連通部 33 エッジ部 34 エッジ部 A 1-can 2-circuit bath kettle B Punch mechanism P Sheet metal 11 Fins 12 Heat transfer tube for bath 13 Heat transfer tube for hot water supply 30 Through hole 30a Arc 31 Through hole 31a Arc 32 Communication part 33 Edge part 34 Edge part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岩崎 啓三 静岡県藤枝市青木２丁目10番25号株式会社 鈴木鐵工所内 (72)発明者 板東 清次 兵庫県神戸市東灘区魚崎浜町43番１号日本 ユプロ株式会社内 (72)発明者 滝沢 隆 兵庫県神戸市東灘区魚崎浜町43番１号日本 ユプロ株式会社内 (72)発明者 河内 登 兵庫県神戸市東灘区魚崎浜町43番１号日本 ユプロ株式会社内 (72)発明者 宗村 浩 兵庫県神戸市東灘区魚崎浜町43番１号日本 ユプロ株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Keizo Iwasaki 2-10-25 Aoki, Fujieda-shi, Shizuoka Suzuki Iron Works Co., Ltd. (72) Inventor Kiyoji Bando 43-1 Uozakihama-cho, Higashinada-ku, Kobe-shi, Hyogo No. Japan Yupro Co., Ltd. (72) Inventor Takashi Takizawa 43-1, Uozakihama-cho, Higashinada-ku, Kobe Japan Yupro Co., Ltd. (72) Inventor Hiroshi Munemura 43-1, Uozakihama-cho, Higashinada-ku, Kobe, Hyogo Japan Japan Yupro Co., Ltd.
Claims (3)
熱管を備え、この両伝熱管を並設密着して多数の共用す
るフィンにロウ付けして１缶２回路式の熱交換器を形成
するものにおいて、二つの伝熱管の貫通孔は、それぞ
れ、共用フィンに貫通させる伝熱管の外径と略等しい円
形断面とするとともに、互いに伝熱管が密着する部分を
重合させて連通させ、同連通部の両側面に、両貫通孔の
隣接する円弧によって挟まれる鋭角のエッジ部を、それ
ぞれ形成したことを特徴とする熱交換器のフィン。1. Two heat transfer tubes connected to different flow paths are provided side by side, and these two heat transfer tubes are juxtaposed and brazed to a large number of common fins to form a one-can, two-circuit heat exchanger. In the one to be formed, the through holes of the two heat transfer tubes each have a circular cross section substantially equal to the outer diameter of the heat transfer tube penetrated by the common fin, and the portions where the heat transfer tubes are in close contact with each other are superimposed and communicated with each other. A fin for a heat exchanger, wherein acute-angled edge portions sandwiched between adjacent arcs of both through holes are formed on both side surfaces of the communication portion.
熱管を備え、この両伝熱管を並設密着して多数の共用す
るフィンにロウ付けして１缶２回路式の熱交換器を形成
するものにおいて、二つの密着する伝熱管を貫通させる
貫通孔を、それぞれ、一つずつ、別工程で孔開け加工す
ることを特徴とする熱交換器のフィン加工方法。2. Two heat transfer tubes connected to different flow paths are provided, and these two heat transfer tubes are juxtaposed and closely attached and brazed to a number of common fins to form a one-can, two-circuit heat exchanger. A method of forming a fin for a heat exchanger, wherein a through-hole for penetrating two closely adhering heat transfer tubes is formed one by one in a separate step.
孔を、それぞれ、別工程のプレス加工で孔開け加工する
ことを特徴とする請求項２記載の熱交換器のフィン加工
方法。3. The fin working method for a heat exchanger according to claim 2, wherein the through holes for penetrating the two heat transfer tubes that are in close contact with each other are formed by press working in separate steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000021077A JP2000199643A (en) | 2000-01-01 | 2000-01-31 | Fin for heat exchanger and processing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000021077A JP2000199643A (en) | 2000-01-01 | 2000-01-31 | Fin for heat exchanger and processing thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6058691A Division JP3071994B2 (en) | 1994-03-29 | 1994-03-29 | Heat exchanger fin and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000199643A true JP2000199643A (en) | 2000-07-18 |
Family
ID=18547534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000021077A Pending JP2000199643A (en) | 2000-01-01 | 2000-01-31 | Fin for heat exchanger and processing thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000199643A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006528559A (en) * | 2003-07-24 | 2006-12-21 | スウエプ インターナシヨナル アーベー | Manufacturing method of plate heat exchanger |
-
2000
- 2000-01-31 JP JP2000021077A patent/JP2000199643A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006528559A (en) * | 2003-07-24 | 2006-12-21 | スウエプ インターナシヨナル アーベー | Manufacturing method of plate heat exchanger |
| US7870671B2 (en) | 2003-07-24 | 2011-01-18 | Swep International Ab | Method of manufacturing a plate heat exchanger |
| JP4800941B2 (en) * | 2003-07-24 | 2011-10-26 | スウエプ インターナシヨナル アーベー | Manufacturing method of plate heat exchanger |
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