JPH043894A - Manufacture of heat exchanger and heat exchanger - Google Patents
Manufacture of heat exchanger and heat exchangerInfo
- Publication number
- JPH043894A JPH043894A JP2103949A JP10394990A JPH043894A JP H043894 A JPH043894 A JP H043894A JP 2103949 A JP2103949 A JP 2103949A JP 10394990 A JP10394990 A JP 10394990A JP H043894 A JPH043894 A JP H043894A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- brazing
- pipe
- cylindrical part
- heat
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000005219 brazing Methods 0.000 claims abstract description 34
- 238000003466 welding Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000002485 combustion reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000004544 spot-on Substances 0.000 description 1
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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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】
［産業上の利用分野］
本発明は、胴部の内部を流れる流体と、胴部の周囲に巻
かれた吸熱パイプ内を流れる流体とを熱交換させる熱交
換器の製造方法、およびその製造方法に用いて好適な熱
交換器に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a heat exchanger that exchanges heat between a fluid flowing inside a body and a fluid flowing in an endothermic pipe wound around the body. The present invention relates to a manufacturing method and a heat exchanger suitable for use in the manufacturing method.
［従来の技術］
胴部の周囲に吸熱パイプを巻回した熱交換器は、熱交換
効率を向上させる目的や、胴部の保護の目的で、胴部と
吸熱パイプとを、ろう付によって接合している。[Conventional technology] A heat exchanger with an endothermic pipe wrapped around the body uses brazing to join the body and the endothermic pipe in order to improve heat exchange efficiency and protect the body. are doing.
ろう付接合を行う際、吸熱パイプが胴部の適切な箇所に
位置する必要がある。そこで、従来は例えば実開昭５８
−１１８３６号に示すものでは、断面Ω形を呈した固定
用のバンドを用いて吸熱パイプと胴部とを仮接合してい
た。このバンドは、Ｒ部の内部に吸熱パイプを配し、両
端の平面部分が胴部に溶接されることによって、吸熱パ
イプを胴部に仮接合するものである。When performing brazing joints, the heat absorption pipe must be located at the appropriate location on the body. Therefore, in the past, for example,
In the device shown in No. 11836, the endothermic pipe and the body were temporarily joined using a fixing band with an Ω-shaped cross section. This band temporarily joins the heat absorbing pipe to the body by arranging the heat absorbing pipe inside the R part and welding the flat parts at both ends to the body.
また、バンドのみでは、吸熱パイプと胴部との間に隙間
の発生する箇所ができる。隙間が発生すると、その隙間
からろう材が下方へ流れてしまう。Furthermore, if only the band is used, there will be a gap between the heat absorbing pipe and the body. When a gap occurs, the brazing filler metal flows downward through the gap.
この結果、隙間の発生した部分は、吸熱パイプと胴部と
のろう付が行われない。As a result, the endothermic pipe and the body are not brazed in the area where the gap has occurred.
そこで、従来では、胴部の内側に治具を押し込み、胴部
を外方向に向かって外方向へ押すことによって、胴部と
吸熱パイプとの隙間を無くしていた。Conventionally, therefore, the gap between the body and the heat absorption pipe has been eliminated by pushing a jig inside the body and pushing the body outward.
［発明が解決しようとする課題］ 従来の技術は、次の問題点を有していた。[Problem to be solved by the invention] The conventional technology had the following problems.
イ）ろう付後、不要となるバンドを用いていたため、熱
交換器の製造コストが高くなる。b) The manufacturing cost of the heat exchanger increases because a band that becomes unnecessary after brazing is used.
口）治具を装着したり、外したりする作業が必要となる
ため、熱交換器の製造コストが高くなる。A) The manufacturing cost of the heat exchanger increases because it requires work to install and remove jigs.
ハ）治具を用いていたため、治具のコストによっても、
熱交換器の製造コストが高くなる。C) Because a jig was used, the cost of the jig also caused
The manufacturing cost of the heat exchanger increases.
二）ろう付を炉中で行う場合、治具を用いると治具に熱
の一部が奪われ、炉の運転速度が低下し、エネルギーコ
ストが高くなる。2) When brazing is carried out in a furnace, if a jig is used, part of the heat is taken away by the jig, reducing the operating speed of the furnace and increasing energy costs.
本発明は、上記事情に鑑みてなされたもので、その目的
は、加工が容易で、製造コストの低い熱交換器の製造方
法の提供、およびその製造方法に用いて好適な熱交換器
の提供にある。The present invention has been made in view of the above circumstances, and its purpose is to provide a method for manufacturing a heat exchanger that is easy to process and has low manufacturing cost, and to provide a heat exchanger suitable for use in the manufacturing method. It is in.
［課題を解決するための手段］
上記の目的を達成するために、本発明の熱交換器の製造
方法は、次の工程の結合よりなる。[Means for Solving the Problems] In order to achieve the above object, the method for manufacturing a heat exchanger of the present invention consists of a combination of the following steps.
胴部の周囲に吸熱パイプを装着し、前記胴部と前記吸熱
パイプとを溶接によって接合する第１工程。A first step of mounting an endothermic pipe around the body and joining the body and the endothermic pipe by welding.
接合された前記胴部と前記吸熱パイプとを、ろう材によ
ってろう付接合する第２工程。A second step of brazing the joined body and the endothermic pipe using a brazing filler metal.
才な、本発明は、次の実施態様を採用すると良い。The present invention may preferably adopt the following embodiments.
ろう付接合が施される時の前記吸熱パイプの下端は、前
記胴部の下端より上方に位置する。The lower end of the heat absorption pipe when brazing is applied is located above the lower end of the body.
［作用］
第１工程において、胴部の周囲の適切な位置に吸熱パイ
プを配置した後、第２工程でろう付される部分の胴部と
吸熱パイプとを直接、溶接する。[Operation] After the endothermic pipe is placed at an appropriate position around the body in the first step, the endothermic pipe is directly welded to the body of the portion to be brazed in the second step.
なお、接合の溶接箇所は、ろう付が成される部分にろう
材が下方へ流れるだけの隙間が発生しないものであれば
、連続的、部分的、あるいはスボッ１〜的であっても良
い。Note that the welding location of the joint may be continuous, partial, or spot-on as long as there is no gap in the area where the brazing is performed that allows the brazing filler metal to flow downward.
第２工程において、第１工程で接合された吸熱パイプお
よび胴部を、炉中に配し、ろう付接合を行う。なお、ろ
う付に用いられるろう材は、吸熱パイプの周囲にクラッ
ドさせたり、あるいは吸熱パイプと胴部との間に形成さ
れる谷間に棒状のものを配するなど、特に限定するもの
では無い。In the second step, the endothermic pipe and the body that were joined in the first step are placed in a furnace and brazed together. Note that the brazing material used for brazing is not particularly limited, and may be clad around the endothermic pipe, or a rod-shaped material may be placed in the valley formed between the endothermic pipe and the body.
実施態様の作用を簡単に説明する。The operation of the embodiment will be briefly explained.
従来、炉中において治具が胴部を支えていたとすれば、
吸熱パイプの下端が、胴部の下端より下方に位置しても
、吸熱パイプの下端が挿入された治具の下端より上方に
あれば、熱交換器は治具によって、安定した状態で支え
られる。しかるに、本発明によって、胴部を外側へ押す
治具が廃止できるため、吸熱パイプの下端が、胴部の下
端より下側にあると、吸熱パイプの下端で熱交換器を支
えることとなり、結果として炉中において熱交換器が不
安定となる。Traditionally, if a jig supported the body in the furnace,
Even if the lower end of the endothermic pipe is located below the lower end of the body, if the lower end of the endothermic pipe is above the lower end of the inserted jig, the heat exchanger can be stably supported by the jig. . However, according to the present invention, the jig that pushes the body outward can be eliminated, so if the lower end of the heat absorption pipe is below the lower end of the body, the heat exchanger will be supported by the lower end of the heat absorption pipe, resulting in As a result, the heat exchanger becomes unstable in the furnace.
しかるに、本実施態様を用い、吸熱パイプの下端を、胴
部の下端より上方に位置すると、ろう付を施すとき、胴
部の底で熱交換器を支えることができる。この結果、熱
交換器を治具等によって持ち上げなくとも、コンベアな
どの平面部分に直接置くことができる。However, if this embodiment is used and the lower end of the heat absorption pipe is located above the lower end of the body, the heat exchanger can be supported at the bottom of the body during brazing. As a result, the heat exchanger can be placed directly on a flat surface such as a conveyor without having to lift it with a jig or the like.
［発明の効果］
本発明は、吸熱パイプと胴部とを直接、溶接するため、
従来使用されていた、バンドや、胴部内に挿入する治具
を廃止することができる。[Effects of the Invention] The present invention directly welds the endothermic pipe and the body.
It is possible to eliminate the conventionally used bands and jigs inserted into the body.
この結果、バンドが不要となるとともに、治具の着脱お
よび治具自体が不要となり、熱交換器の製造コストを低
く抑えることができる。As a result, there is no need for a band, as well as the need for attaching and detaching a jig and the jig itself, making it possible to keep the manufacturing cost of the heat exchanger low.
また、本実施態様を採用することにより、ろう付時に熱
交換器を直接、平面においても安定するため、ろう付時
に熱交換器を持ち上げる治具が不要となり、結果として
熱交換器の製造コストを低く抑えることができる。In addition, by adopting this embodiment, the heat exchanger is stabilized directly during brazing, even on a flat surface, so there is no need for a jig to lift the heat exchanger during brazing, and as a result, the manufacturing cost of the heat exchanger is reduced. can be kept low.
［実施例］
次に、本発明の熱交換器の製造方法および熱交換器を、
図に示す一実施例に基づき説明する。[Example] Next, the method for manufacturing a heat exchanger and the heat exchanger of the present invention,
An explanation will be given based on an example shown in the figure.
（熱交換器の構成）
第１図ないし第４図は本発明の製造方法によって製造さ
れた給湯器用の熱交換器を示す。(Structure of Heat Exchanger) FIGS. 1 to 4 show a heat exchanger for a water heater manufactured by the manufacturing method of the present invention.
給湯器用の熱交換器１は、主に、胴部２と、多数のフィ
ン３と、水パイプ４とがら構成され、以下順に説明する
。なお、胴部２、フィン３および水バイブ４は、銅によ
って形成されている。A heat exchanger 1 for a water heater mainly includes a body part 2, a large number of fins 3, and a water pipe 4, which will be explained in order below. Note that the body 2, fins 3, and water vibrator 4 are made of copper.
イ）胴部２の説明。b) Description of body part 2.
胴部２は、いわゆる内胴で、内部を燃焼ガスが流れる。The body 2 is a so-called inner body through which combustion gas flows.
この胴部２は、一方の開口（第１図下側）がバーナを収
納する枠体に接続され、他方の開口（第１図上側）が排
気通路の枠体に接続される。One opening (lower side in FIG. 1) of the body 2 is connected to a frame housing a burner, and the other opening (upper side in FIG. 1) is connected to a frame of an exhaust passage.
胴部２は、燃料（例えば、ガスや幻油など）の燃焼が行
われる燃焼部５と、内部にフィン３が配される主熱交換
部６とに、分類される。また、胴部２は、略四角柱体を
呈し、主熱交換部６の外形寸法は、燃焼部５の外形寸法
よりも、やや小さく設けられている。この胴部２は、２
枚の略コ字型を呈したプレートを接合した後、燃焼部５
を外方向へ拡張するとともに、両端開口部に、接続用フ
ランジ７．８を形成したものである。The body part 2 is classified into a combustion part 5 in which fuel (eg, gas, oil, etc.) is combusted, and a main heat exchange part 6 in which fins 3 are arranged. Further, the body section 2 has a substantially rectangular prism shape, and the outer dimensions of the main heat exchange section 6 are slightly smaller than the outer dimensions of the combustion section 5. This body part 2 is 2
After joining the two approximately U-shaped plates, the combustion part 5
is expanded outward, and connecting flanges 7.8 are formed at the openings at both ends.
一方、胴部２の主熱交換部６には、対向するそれぞれの
面に、水バイブ４（下述する貫通バイ１１６）を挿通す
るための貫通穴９．１０が、それぞれ複数設けられてい
る。この貫通穴９．１０には、バーリング加工が施され
ている。On the other hand, a plurality of through holes 9 and 10 for inserting the water vibrator 4 (through-vib 116 described below) are provided on each opposing surface of the main heat exchange section 6 of the body 2. . This through hole 9.10 is burred.
口）フィン３の説明。Mouth) Explanation of Fin 3.
フィン３は、燃焼部５で発生した炎の熱と、水通路内を
流れる水との熱交換効率を向上させる多数の薄いプレー
トで、胴部２の一部である主熱交換部６の内部に、多数
、所定間隙を隔てて積層された状態で配設される。そし
て、各フィン３の向かい合う面の間を、燃焼ガスが通過
する。The fins 3 are a number of thin plates that improve the efficiency of heat exchange between the heat of the flame generated in the combustion section 5 and the water flowing in the water passage. A large number of them are arranged in a stacked state with a predetermined gap between them. Then, the combustion gas passes between the opposing surfaces of each fin 3.
各フィン３には、水パイプ４（下述する貫通パイプ１６
）を挿通するための貫通穴１７が、複数設けられている
。この貫通穴１７にも、それぞれにバーリング加工によ
って、バーリング部１８が形成されている。そして、貫
通パイプ１６とバーリング部１８は、ろう付接合されて
いる。Each fin 3 has a water pipe 4 (a through pipe 16 described below).
) are provided with a plurality of through holes 17 for insertion. Burring portions 18 are also formed in each of the through holes 17 by burring processing. The through pipe 16 and the burring portion 18 are joined by brazing.
また、各フィン３の両端には、胴部２の内面に沿って当
接する当接フランジ２３が形成されている。そして、胴
部２と当接フランジ２３とは、ろう付接合されている。Furthermore, abutment flanges 23 are formed at both ends of each fin 3 to abut along the inner surface of the body portion 2 . The body portion 2 and the abutting flange 23 are joined by brazing.
ハ）水パイプ４の説明。c) Explanation of water pipe 4.
水パイプ４は、内部を流れる水と炎の熱との熱交換を行
う管で、一端が給水源に接続される入水パイプ（図示し
ない）に接続され、他端が出湯パイプ（図示しない）に
接続される。The water pipe 4 is a pipe that performs heat exchange between the water flowing inside and the heat of the flame, and one end is connected to a water inlet pipe (not shown) connected to a water supply source, and the other end is connected to a hot water outlet pipe (not shown). Connected.
水パイプ４は、胴部２の熱を吸熱する吸熱パイプ２４と
、主熱交換部６において水を加熱する加熱パイプ２５と
に分類される。The water pipe 4 is classified into an endothermic pipe 24 that absorbs heat from the body 2 and a heating pipe 25 that heats water in the main heat exchange section 6.
吸熱パイプ２４は、燃焼部５の周囲に接触した状態で巻
かれ、燃焼部５の周囲の面に、溶接された後、ろう材に
よってろう付接合されている（製造方法は、後述する）
。接合に使用される溶接技術は、とくに限定されるもの
では無いが、好ましい溶接技術としては、溶接箇所が不
活性ガスによって空気と遮断された溶接がある。このシ
ールドガスを用いた溶接の具体例を示せば、ティグ溶接
、プラズマ溶接などが一般的に知られている。The heat absorption pipe 24 is wound around the combustion section 5 in contact with the combustion section 5, welded to the surface around the combustion section 5, and then brazed with a brazing metal (the manufacturing method will be described later).
. The welding technique used for joining is not particularly limited, but a preferred welding technique is welding in which the welding location is isolated from the air by an inert gas. Specific examples of welding using this shielding gas include TIG welding, plasma welding, and the like.
また、吸熱パイプ２４は、熱交換器１がろう付接合を行
う炉中に配された際、水バイブ４の下端、つまり吸熱バ
イブ２４の下端２４ａが、胴部２の下端２ａよりも、上
方に位置するように設けられている。Furthermore, when the heat exchanger 1 is placed in a furnace where the heat exchanger 1 is brazed, the lower end of the water vibrator 4, that is, the lower end 24a of the endothermic pipe 24 is located above the lower end 2a of the body 2. It is set up to be located at.
加熱パイプ２５は、胴部２を貫通する貫通バイ１１６と
、貫通パイプ１６の端に接続されるリターンベンドパイ
プ２６とからなり、ろう付接合されている。The heating pipe 25 consists of a through-by 116 that penetrates the body 2 and a return bend pipe 26 that is connected to the end of the through-pipe 16 and are joined by brazing.
（熱交換器の製造方法）
次に、熱交換器１の製造方法のうち、本発明にかかる胴
部２と吸熱バイブ２４との製造方法を簡単に説明する。(Method for manufacturing a heat exchanger) Next, among the methods for manufacturing the heat exchanger 1, a method for manufacturing the body portion 2 and the endothermic vibrator 24 according to the present invention will be briefly described.
胴部２と吸熱パイプ２４とは、次の第１工程、第２工程
によって、接合されている。The body portion 2 and the heat absorption pipe 24 are joined by the following first and second steps.
二）第１工程では、角柱状に形成された胴部２の周囲に
、吸熱パイプ２４を配設する６次いで、胴部２の内側よ
り、治具によって胴部２を押しつけ、胴部２と吸熱パイ
プ２４とを当接させる。治具によって胴部２と吸熱パイ
プ２４とを当接させた状態で、ティグ溶接を施し、胴部
２と吸熱パイプ２４とを接合する。溶接の箇所は、第２
工程でろう付が成された際、胴部２と吸熱パイプ２４と
の間に、ろう材が下方へ流れるだけの隙間が発生しない
ものであれば良く、本実施例では、Ｉｃｍ〜３Ｃ１１に
１箇所、スボッＩ・的に溶接を施している。2) In the first step, a heat absorption pipe 24 is arranged around the body 2 formed in a prismatic shape.6 Next, the body 2 is pressed with a jig from the inside of the body 2, and the body 2 is pressed against the body 2. The endothermic pipe 24 is brought into contact with the endothermic pipe 24. With the body 2 and the heat absorption pipe 24 in contact with each other using a jig, TIG welding is performed to join the body 2 and the heat absorption pipe 24. The welding point is the second
When brazing is performed in the process, it is sufficient that a gap large enough for the brazing material to flow downward does not occur between the body 2 and the heat absorption pipe 24, and in this embodiment, 1 cm to 3C11 Welding is carried out at various points and sub-holes.
ホ）第２工程は、第１工程で仮接合された胴部２と吸熱
パイプ２４との間に形成された谷間に、棒状のろう材を
配置した後、炉中においてろう付を行う０本実施例に用
いられる炉は、コンベアの上に熱交換器１を並列に複数
並べて置き、コンベアの移動によって、炉内を通過させ
るものである。e) In the second step, a rod-shaped brazing material is placed in the valley formed between the body 2 and the heat absorption pipe 24 which were temporarily joined in the first step, and then brazing is performed in a furnace. In the furnace used in the embodiment, a plurality of heat exchangers 1 are arranged in parallel on a conveyor, and the heat exchangers 1 are passed through the furnace by movement of the conveyor.
なお、この時、他のろう付部分も同時に、ろう付接合さ
れる。Note that at this time, other brazed portions are also brazed and joined at the same time.
本実施例では、熱交換器１をろう付する際、吸熱パイプ
２４の下端２４ａが、胴部２の下端２ａより上方に位置
するため、胴部２の底で熱交換器１を支えることができ
る。この結果、熱交換器１を治具等によって持ち上げな
くとも、コンベアの平面部分に直接置くことができる。In this embodiment, when the heat exchanger 1 is brazed, the lower end 24a of the heat absorption pipe 24 is located above the lower end 2a of the body 2, so the heat exchanger 1 cannot be supported at the bottom of the body 2. can. As a result, the heat exchanger 1 can be placed directly on the flat surface of the conveyor without having to lift it with a jig or the like.
（実施例の効果）
本実施例は、吸熱パイプ２４と胴部２とを直接、溶接技
術によって接合するため、従来使用されていた、バンド
や、胴部２内に挿入する治具を廃止することができる。(Effects of Example) In this example, the heat absorption pipe 24 and the body 2 are directly joined by welding technology, so the conventionally used bands and jigs inserted into the body 2 are abolished. be able to.
この結果、バンドが不要となるとともに、胴部２を押し
広げて胴部２と吸熱パイプ２４との隙間を無くす治具の
着脱および治具自体が不要となり、熱交換器１の製造コ
ストを低く抑えることができる。As a result, there is no need for a band, and there is no need for the attachment or detachment of a jig for pushing out the body 2 to eliminate the gap between the body 2 and the heat absorption pipe 24, as well as the jig itself, reducing the manufacturing cost of the heat exchanger 1. It can be suppressed.
また、ろう付を行う際に与えられる熱の一部が、胴部２
を押し広げて胴部２と吸熱パイプ２４との隙間を無くす
治具に奪われることがない。このため、炉の熱効率が従
来に比較して向上し、結果的に熱交換器１の製造コスト
を低く抑えることができる。Also, some of the heat given during brazing is transferred to the body 2.
It is not stolen by a jig that pushes out the gap between the body 2 and the heat absorption pipe 24. Therefore, the thermal efficiency of the furnace is improved compared to the conventional method, and as a result, the manufacturing cost of the heat exchanger 1 can be kept low.
さらに、胴部２を押し広げて胴部２と吸熱パイプ２４と
の隙間を無くす治具を胴部２に挿入しないため、治具に
より、胴部２が変形する可能性が無くなる。Furthermore, since a jig for pushing the body part 2 wider and eliminating the gap between the body part 2 and the heat absorption pipe 24 is not inserted into the body part 2, there is no possibility that the body part 2 is deformed by the jig.
一方、熱交換器１をろう付する際、熱交換器１を治具等
によって持ち上げなくとも、コンベアの平面部分に直接
置いても安定する。このため、ろう何時に熱交換器１を
持ち上げる治具が不要となり、結果として熱交換器１の
製造コストを低く抑えることができる。On the other hand, when brazing the heat exchanger 1, the heat exchanger 1 can be stably placed directly on the flat surface of the conveyor without having to be lifted up using a jig or the like. Therefore, there is no need for a jig to lift the heat exchanger 1 during soldering, and as a result, the manufacturing cost of the heat exchanger 1 can be kept low.
第１図は熱交換器の側面断面図、第２図は熱交換器の正
面断面図、第３図は熱交換器の上面断面図、第４図は熱
交換器の斜視図である。
図中 １・・・熱交換器 ２・・・胴部２４・・・
吸熱パイプFIG. 1 is a side sectional view of the heat exchanger, FIG. 2 is a front sectional view of the heat exchanger, FIG. 3 is a top sectional view of the heat exchanger, and FIG. 4 is a perspective view of the heat exchanger. In the diagram: 1... Heat exchanger 2... Body 24...
endothermic pipe
Claims (1)
吸熱パイプとを溶接によって接合する第１工程。 ｂ）接合された前記胴部と前記吸熱パイプとを、ろう材
によってろう付接合する第２工程。 ２）前記ろう付接合が施される時の前記吸熱パイプの下
端は、前記胴部の下端より上方に位置する、請求項１記
載の熱交換器。[Claims] 1) A method for manufacturing a heat exchanger, which includes the combination of the following steps. a) A first step of attaching a heat absorption pipe around the body and joining the body and the heat absorption pipe by welding. b) A second step of brazing the joined body and the endothermic pipe using a brazing filler metal. 2) The heat exchanger according to claim 1, wherein the lower end of the heat absorption pipe when the brazing joint is applied is located above the lower end of the body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2103949A JPH043894A (en) | 1990-04-19 | 1990-04-19 | Manufacture of heat exchanger and heat exchanger |
| KR1019910004772A KR910018121A (en) | 1990-04-19 | 1991-03-27 | Manufacturing method of heat exchanger and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2103949A JPH043894A (en) | 1990-04-19 | 1990-04-19 | Manufacture of heat exchanger and heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH043894A true JPH043894A (en) | 1992-01-08 |
Family
ID=14367674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2103949A Pending JPH043894A (en) | 1990-04-19 | 1990-04-19 | Manufacture of heat exchanger and heat exchanger |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH043894A (en) |
| KR (1) | KR910018121A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020054068A (en) * | 2000-12-27 | 2002-07-06 | 김진곤 | Haet exchanger for gas boiler and manufacture method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6452114A (en) * | 1987-05-08 | 1989-02-28 | Olympus Optical Co | Encoscope system for disaster countermeasure |
-
1990
- 1990-04-19 JP JP2103949A patent/JPH043894A/en active Pending
-
1991
- 1991-03-27 KR KR1019910004772A patent/KR910018121A/en not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6452114A (en) * | 1987-05-08 | 1989-02-28 | Olympus Optical Co | Encoscope system for disaster countermeasure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020054068A (en) * | 2000-12-27 | 2002-07-06 | 김진곤 | Haet exchanger for gas boiler and manufacture method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR910018121A (en) | 1991-11-30 |
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