JPS62223597A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPS62223597A JPS62223597A JP6392386A JP6392386A JPS62223597A JP S62223597 A JPS62223597 A JP S62223597A JP 6392386 A JP6392386 A JP 6392386A JP 6392386 A JP6392386 A JP 6392386A JP S62223597 A JPS62223597 A JP S62223597A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- corrosion
- present
- reduced
- brazing
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000005260 corrosion Methods 0.000 abstract description 16
- 230000007797 corrosion Effects 0.000 abstract description 16
- 238000005219 brazing Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000007796 conventional method Methods 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000009692 water atomization Methods 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、主に空気その他の気体の熱交換器に関する。[Detailed description of the invention] [Industrial application field] The present invention relates primarily to heat exchangers for air or other gases.
空気あるいはその地気体を接触させ、他の気体又は液体
と熱交換させることを目的としたいわゆる空気熱交換器
は、アルミニウム又はその合金あるいは銅又はその合金
、鉄又はその合金等を組み合せて製作されることが多く
、たがいに異った材料が接触する場合が多々あり、それ
ぞれの材料間の自然電位差によって腐食し、装置寿命を
きわめて短くすることがしばしば起こつている。The so-called air heat exchanger, which aims to exchange heat with other gases or liquids by bringing air or earth gas into contact with it, is manufactured by combining aluminum or its alloys, copper or its alloys, iron or its alloys, etc. Different materials often come into contact with each other, and corrosion occurs due to the natural potential difference between the materials, often resulting in extremely shortened device life.
空気熱交換器は、全体をまったく同じ材料で作られるこ
とはきわめて少ないため、前述のような腐食事故が起こ
りゃすい。そのために、従来は、表面処理をして、耐食
性を上げる塗装あるいは化学処理（例えば、めっき等）
を施して使用に供しているが、通常は、これらの処理コ
ストが高く、製品コストも非常に高くなる原因となって
いる。Since air heat exchangers are rarely made entirely of the same material, corrosion accidents like the one described above are more likely to occur. For this purpose, conventional methods have been to apply surface treatments such as painting or chemical treatments (for example, plating, etc.) to increase corrosion resistance.
However, these processing costs are usually high and the product cost is also very high.
この腐食問題を、本発明では、異材が接触する部分の面
積をできるかぎり少なくして腐食の発生確率を低減する
ことにより、解決するものである。The present invention solves this corrosion problem by reducing the area where different materials come into contact as much as possible to reduce the probability of corrosion occurring.
すなわち本発明は、管材にフィン材を接着して構成され
る熱交換器において、前記管材とフィン材とを部分的に
接着してなることを特徴とする熱交換器に関する。That is, the present invention relates to a heat exchanger constructed by bonding a fin material to a tube material, characterized in that the tube material and the fin material are partially bonded.
従来は、管材とフィン材とのロウ付等により連続的に接
着していたが、本発明では、これらを部分的に接着する
ものである。腐食（主に孔食）は確率的に発生するため
、この確率面積を部分的接着により減少させるものであ
る。Conventionally, the tube material and the fin material were bonded continuously by brazing or the like, but in the present invention, these are partially bonded. Since corrosion (mainly pitting corrosion) occurs stochastically, this stochastic area is reduced by partial adhesion.
故に、本発明によって得られる空気熱交換器は、前述し
た従来の問題点を解決し、装置寿命を大幅に延長するこ
とができる。Therefore, the air heat exchanger obtained by the present invention can solve the above-mentioned conventional problems and greatly extend the life of the device.
第１図に示した熱交換器腐食試験片足ついて、放熱フィ
ン１の基台２上へのロウ付けを、本発明の部分的接着と
、従来の全面接着により行なって製作したものについて
、腐食試験を行った。Corrosion test for the heat exchanger shown in Fig. 1. Corrosion tests were carried out on one leg of the heat exchanger manufactured by brazing the radiation fins 1 onto the base 2 by partial adhesion of the present invention and conventional full-surface adhesion. I did it.
なお、使用材料は、第１表に掲げる規格のものを用いた
。The materials used were of the specifications listed in Table 1.
第２図及び第３図は、第１図のロウ付部分３の詳細を示
す図で、第２図が本発明によって得られたもの、第３図
が、従来法によって得られたものであり、第２．３図中
の４はロウ材フィレットである。2 and 3 are views showing details of the brazed portion 3 in FIG. 1, with FIG. 2 being obtained by the present invention and FIG. 3 being obtained by the conventional method. , 4 in Fig. 2.3 is a fillet of brazing fillet.
両者の構造的な相異は、このロウ付は部のみであり、具
体的に述べると、従来法によるものは、連続的に接着さ
れているのに対し、本発明によるものは、部分的に接着
されているところが異なっている。The structural difference between the two is that this brazing is only done on the part, and to be more specific, in the case of the conventional method, it is bonded continuously, whereas in the case of the present invention, it is only partially bonded. The difference is where they are glued.
この両者について、ＪＩ８２３７１による塩水噴霧腐食
試験を実施し、１０００時間後の熱交換器の基台２に発
生した孔食の最大孔食深度と同じく深度１０μｍ以上の
孔食個数を測定した。A salt spray corrosion test according to JI82371 was carried out on both of them, and the number of pittings with a depth of 10 μm or more was measured, which is the same as the maximum pitting depth of the pitting corrosion that occurred on the base 2 of the heat exchanger after 1000 hours.
その結果を、第２表に示す。この結果から、本発明によ
るものは、最大孔食深度で従来の％。The results are shown in Table 2. From this result, the maximum pitting depth of the present invention is % of that of the conventional method.
孔食個数でにに減少することが確認された。It was confirmed that the number of pitting corrosion was significantly reduced.
第 １ 表
第 ２ 表
〔発明の効果〕
本発明によれば、空気熱交換器の腐食が、異種材料との
接触面積を減らすことにより大巾に軽減できる。Table 1 Table 2 [Effects of the Invention] According to the present invention, corrosion of an air heat exchanger can be greatly reduced by reducing the area of contact with different materials.
第１図は、本発明の実施例で用いた腐食試験用熱交換器
試験片の構成図であり、第２図は、本発明によるロウ付
部分の詳細図、第３図は、従来法によるロウ付部分の詳
細図を示す。
復代理人 内 １） 明
復代理人 萩 原 亮 −
復代理人 安 西 篤 夫
第１図
第２図FIG. 1 is a configuration diagram of a heat exchanger test piece for corrosion testing used in an example of the present invention, FIG. 2 is a detailed diagram of a brazed portion according to the present invention, and FIG. A detailed diagram of the brazed part is shown. Sub-Agent 1) Meifuku Agent Ryo Hagiwara - Sub-Agent Atsuo Anzai Figure 1 Figure 2
Claims (1)
て、前記管材とフイン材とを部分的に接着してなること
を特徴とする熱交換器。1. A heat exchanger constructed by bonding a fin material to a tube material, characterized in that the tube material and the fin material are partially bonded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61063923A JPH0678879B2 (en) | 1986-03-24 | 1986-03-24 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61063923A JPH0678879B2 (en) | 1986-03-24 | 1986-03-24 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62223597A true JPS62223597A (en) | 1987-10-01 |
| JPH0678879B2 JPH0678879B2 (en) | 1994-10-05 |
Family
ID=13243347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61063923A Expired - Fee Related JPH0678879B2 (en) | 1986-03-24 | 1986-03-24 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0678879B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837081U (en) * | 1981-08-28 | 1983-03-10 | 日本ラヂヱ−タ−株式会社 | Evaporator |
| JPS60105973U (en) * | 1983-12-26 | 1985-07-19 | カルソニックカンセイ株式会社 | Heat exchanger |
-
1986
- 1986-03-24 JP JP61063923A patent/JPH0678879B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837081U (en) * | 1981-08-28 | 1983-03-10 | 日本ラヂヱ−タ−株式会社 | Evaporator |
| JPS60105973U (en) * | 1983-12-26 | 1985-07-19 | カルソニックカンセイ株式会社 | Heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0678879B2 (en) | 1994-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |