JPH0379956A - Heat exchanger for bathtub boiler application - Google Patents
Heat exchanger for bathtub boiler applicationInfo
- Publication number
- JPH0379956A JPH0379956A JP21307689A JP21307689A JPH0379956A JP H0379956 A JPH0379956 A JP H0379956A JP 21307689 A JP21307689 A JP 21307689A JP 21307689 A JP21307689 A JP 21307689A JP H0379956 A JPH0379956 A JP H0379956A
- Authority
- JP
- Japan
- Prior art keywords
- fin
- water
- bathtub
- aluminum
- heat exchanger
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 8
- 239000010949 copper Substances 0.000 abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 229910021645 metal ion Inorganic materials 0.000 abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 4
- 239000010935 stainless steel Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 229910001566 austenite Inorganic materials 0.000 abstract 3
- 238000003287 bathing Methods 0.000 abstract 2
- 239000003814 drug Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000013040 bath agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
Landscapes
- Details Of Fluid Heaters (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ガスを熱源とする風呂釜用熱交換器に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heat exchanger for a bathtub using gas as a heat source.
一般的な従来の風呂釜用熱交換器は、熱効率および加工
性などの点から脱酸銅で構成されているが、コストを下
げるため、オールアルミニウム製のものと、フィンおよ
びフィンチューブを銅、水冷ジャケットをオーステナイ
ト系ステンレス鋼で構成したものが提案され、かつ、実
用化されている。Typical conventional heat exchangers for bathtubs are made of deoxidized copper for thermal efficiency and workability, but in order to reduce costs, some are made entirely of aluminum, while others are made of fins and fin tubes made of copper. A water cooling jacket constructed of austenitic stainless steel has been proposed and put into practical use.
しかし乍ら、アルミニウム製のものは、最近の各種浴用
剤の使用による浴用剤成分（ｃｐ−。However, those made of aluminum have a bath additive component (cp-) that is due to the use of recent various bath additives.
ＳＯ２”−、Ｎｏ３−） 、あるいは給湯、給水配管か
ら入り込むＦｅイオン、Ｃｕイオンなどからの腐蝕を受
けて水漏れを生じやすいという問題点（１）がある。There is a problem (1) in that water leaks are likely to occur due to corrosion from Fe ions, Cu ions, etc. that enter from SO2"-, No. 3-), hot water supply, and water supply piping.
また、後者は、フィンチューブと水冷ジャケットとをＴ
ｉｇ溶接により接合しているが、銅とステンレス鋼とは
固溶体を作らないため、溶接の際溶けた金属同士が単に
からみ合っているだけで強度がなく、溶接不良が生じや
すいという問題点（２）がある。In addition, the latter has a fin tube and a water cooling jacket.
They are joined by ig welding, but since copper and stainless steel do not form a solid solution, the molten metals simply intertwine with each other during welding, resulting in lack of strength and the problem of welding defects (2). ).
さらに後者は、燃焼排ガス中の硫黄分などにより硫酸が
生成され、これがフィン、フィンチューブに付着して硫
酸銅などを生成し、フィンづまりや排気閉塞を起して熱
効率の低下や不完全燃焼を引きおこすという問題点（３
）がある。Furthermore, in the latter case, sulfuric acid is generated due to the sulfur content in the combustion exhaust gas, and this adheres to the fins and fin tubes, producing copper sulfate, etc., causing fin clogging and exhaust blockage, resulting in a decrease in thermal efficiency and incomplete combustion. The problem of causing (3)
).
本発明は、前記の如き従来技術の問題点を改善し、排気
ガスや浴用剤成分に対して耐蝕性を有し、しかも機械的
強度が高い風呂釜用熱交換器を提供せんとするものであ
る。The present invention aims to improve the problems of the prior art as described above, and to provide a heat exchanger for bathtubs that is resistant to corrosion against exhaust gas and bath agent components and has high mechanical strength. be.
本発明は、前記の如き目的を達成するため、熱交換のフ
ィン部分をアルミニウムで構成するヒ共に、水冷ジャケ
ットおよびフィンチューブをオーステナイト系ステンレ
ス鋼で構成したことを特徴とする。In order to achieve the above objects, the present invention is characterized in that the heat exchange fin portion is made of aluminum, and the water cooling jacket and fin tube are made of austenitic stainless steel.
本発明は、浴槽水に触れる部分（水冷ジャケットおよび
フィンチューブ）を浴槽水中に含まれる可能性のある浴
用剤成分および給湯、給水配管から入り込む金属イオン
に対し耐蝕性を有するオーステナイト系ステンレス鋼と
することにより前述の問題点（１）を解決する。The present invention uses austenitic stainless steel for parts that come into contact with bath water (water cooling jacket and fin tube) that have corrosion resistance against bath agent components that may be contained in bath water and metal ions that enter from hot water and water supply piping. This solves the above-mentioned problem (1).
また、水冷ジャケットおよびフィンチューブを同一の材
質であるオーステナイト系ステンレス鋼とすることによ
り、Ｔｉｇ溶接の際両者が固溶して強度が増大し、かつ
、作業性も大幅に改讐される。Furthermore, by using the same material, austenitic stainless steel, for the water-cooling jacket and the fin tube, both are solidly dissolved during TIG welding, increasing the strength and significantly improving workability.
さらに、フィンをアルミニウムにすることにより、排ガ
スと接する部分はアルミニウムとオ・−ステナイト系ス
テンレス鋼となり、フィンの腐蝕を防いで前述の問題点
（３）を解決する。Furthermore, by making the fins from aluminum, the parts that come into contact with the exhaust gas are made of aluminum and austenitic stainless steel, which prevents corrosion of the fins and solves the problem (3) mentioned above.
以下、第１図および第２図について本発明の実施の一例
を説明する。An example of the implementation of the present invention will be described below with reference to FIGS. 1 and 2. FIG.
第１図は本発明の一実施例を示す一部破断斜視図、第２
図は同じく一部の拡大断面図であって、王はフィン、２
はフィンチューブ、３は水冷ジャケトである。FIG. 1 is a partially cutaway perspective view showing one embodiment of the present invention, and FIG.
The figure is also an enlarged cross-sectional view of a part, where the king is a fin, and the two
is a fin tube, and 3 is a water cooling jacket.
本発明においては、前述の如くフィン１をアルミニウム
で構成すると共に、フィンチューブ２および水冷ジャケ
ット３をオーステナイト系ステンレス鋼で構威し、その
フィンチューブ２の両端と水冷ジャケット３との接合部
４をＴｊｇ溶接により溶接する。なお、フィン１とフィ
ンチューブ２との接合部５はロウ付げにより接合する。In the present invention, as described above, the fin 1 is made of aluminum, the fin tube 2 and the water cooling jacket 3 are made of austenitic stainless steel, and the joints 4 between both ends of the fin tube 2 and the water cooling jacket 3 are made of aluminum. Weld by Tjg welding. Note that the joint portion 5 between the fin 1 and the fin tube 2 is joined by brazing.
本発明は、前述の如く、浴槽水に触れるフィンチューブ
２および水冷ジャケット３をオーステナイト系ステンレ
ス鋼で構成したので、浴槽水中に含まれる可能性のある
浴用剤成分および給湯、給水配管から入り込む金属イオ
ンなどからの腐蝕を受けるおそれがなく、かつ、フィン
チューブ２も水冷ジャケット３も同一の材質であるから
、両者の接合部４は強度が増大すると同時に作業性が良
くなり、さらに、フィンはアルミニウムであるので、従
来の銅系のもののような腐蝕を受けるおそれがな（なり
、かくして風呂釜用熱交換器の耐久性を顕著に向上させ
ることができる。なお、フィン１とフィンチューブ２と
の接合部５はロー付けで、フィンチューブ２と水冷ジャ
ケット３との接合部の如き強度はないけれども、万一接
合部５が剥れても水漏れとは無関係であるので支障はな
い。As mentioned above, in the present invention, the fin tube 2 and the water cooling jacket 3 that come into contact with the bathtub water are made of austenitic stainless steel, so that the bath agent components that may be contained in the bathtub water and the metal ions that enter from the hot water and water supply pipes are removed. There is no risk of corrosion from other sources, and since the fin tube 2 and the water cooling jacket 3 are made of the same material, the strength of the joint 4 between the two is increased and workability is improved.Furthermore, the fins are made of aluminum. As a result, there is no risk of corrosion as with conventional copper-based heat exchangers (thus, the durability of the bathtub heat exchanger can be significantly improved. Although the portion 5 is brazed and does not have the strength of the joint between the fin tube 2 and the water cooling jacket 3, even if the joint 5 were to separate, there would be no problem as it has nothing to do with water leakage.
次に、前記の如き本発明の効果を実証するため。Next, in order to demonstrate the effects of the present invention as described above.
第３図に示す装置により凝縮水を採集して実験した結果
を述べる。The results of an experiment conducted by collecting condensed water using the apparatus shown in FIG. 3 will be described.
第３図に示すように、チャンバー中のバーナにてガス（
１３Ａ）を燃焼させ、その排気を真空ポンプで吸引し、
その途中、ガラス製の一次凝縮ジャケットおよび二次凝
縮ジャケットで排気ガスを水冷し、捕集フラスコに凝縮
水を採集した。As shown in Figure 3, the burner in the chamber produces gas (
13A) is burned, the exhaust gas is sucked in by a vacuum pump,
During this process, the exhaust gas was cooled with water using a glass primary condensation jacket and a secondary condensation jacket, and condensed water was collected in a collection flask.
得られた凝縮水は、
亜硝酸 ＨＮ ０２６ 、１ρＰＩ１１硝酸ＨＮＯ３０
，７ｐｐｎｉ・
硫酸Ｈ２ＳＯ４１，２ｐｐｍ
で、ｐＨは３．８であった。The obtained condensed water contains nitrous acid HN 026, 1ρPI11 nitric acid HNO30
,7ppni/sulfuric acid H2SO4 1.2ppm, and the pH was 3.8.
上記凝縮水をビー力に入れ、そのビーカ内の凝縮水に、
オーステナイト系ステンレス１９（ＳＵＳ３０４） 、
アルミニウム、銅をそれぞれ別々に浸漬し、２５℃、４
８時間後容疑縮水中の金属イオンの分析を行なった。そ
の結果を下表に示す。Put the above condensed water into the beaker, and the condensed water in the beaker,
Austenitic stainless steel 19 (SUS304),
Aluminum and copper were immersed separately at 25°C for 4 hours.
After 8 hours, metal ions in the condensed water were analyzed. The results are shown in the table below.
なお、 分析は、 原子吸光分析法により行なった。In addition, The analysis is The analysis was carried out using atomic absorption spectrometry.
以上述べたように、本発明によれば、浴用剤成分や排ガ
スを含む水によって腐蝕することなく、かつ機械的強度
が高くて耐久性に優れた風呂釜用熱交換器を得ることが
できる。As described above, according to the present invention, it is possible to obtain a heat exchanger for a bathtub that is not corroded by water containing bath agent components and exhaust gas, has high mechanical strength, and is excellent in durability.
第１＠は本発明を適用した風呂釜用熱交換器の一部破断
斜視図、第２図は同一部の拡大断面図である。第３図は
実験に使用した凝縮水採集装置の説明図である。
１・・・フィン、２・・・フィンチューブ、３・・・水
冷ジャケット、４・・・フィンチューブと水冷ジャケッ
トの接合部。1 is a partially cutaway perspective view of a heat exchanger for a bathtub to which the present invention is applied, and FIG. 2 is an enlarged sectional view of the same part. FIG. 3 is an explanatory diagram of the condensed water collection device used in the experiment. 1...Fin, 2...Fin tube, 3...Water cooling jacket, 4...Joint part of fin tube and water cooling jacket.
Claims (1)
共に、水冷ジャケットおよびフィンチューブをオーステ
ナイト系ステンレス鋼により構成したことを特徴とする
風呂釜用熱交換器。1. A heat exchanger for a bathtub, characterized in that the fin portion of the heat exchanger is made of aluminum, and the water cooling jacket and fin tube are made of austenitic stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21307689A JPH0379956A (en) | 1989-08-21 | 1989-08-21 | Heat exchanger for bathtub boiler application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21307689A JPH0379956A (en) | 1989-08-21 | 1989-08-21 | Heat exchanger for bathtub boiler application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0379956A true JPH0379956A (en) | 1991-04-04 |
Family
ID=16633148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21307689A Pending JPH0379956A (en) | 1989-08-21 | 1989-08-21 | Heat exchanger for bathtub boiler application |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0379956A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440864A (en) * | 2015-05-11 | 2017-02-22 | 蒋超 | Working method of energy-saving environment-friendly air conditioning system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811643B2 (en) * | 1974-05-27 | 1983-03-04 | 株式会社日立製作所 | Periodic disturbance removal method |
| JPS5932241B2 (en) * | 1973-07-10 | 1984-08-07 | インデツクス ウエルケ コマンデイトゲゼルシヤフト ハ−ン ウント テツスキ− | Hydraulic hollow clamping cylinder for actuating the collet or chuck of the working spindle of a lathe |
| JPS6213581A (en) * | 1985-07-11 | 1987-01-22 | Showa Alum Corp | Heat exchanger for bath furnace |
-
1989
- 1989-08-21 JP JP21307689A patent/JPH0379956A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5932241B2 (en) * | 1973-07-10 | 1984-08-07 | インデツクス ウエルケ コマンデイトゲゼルシヤフト ハ−ン ウント テツスキ− | Hydraulic hollow clamping cylinder for actuating the collet or chuck of the working spindle of a lathe |
| JPS5811643B2 (en) * | 1974-05-27 | 1983-03-04 | 株式会社日立製作所 | Periodic disturbance removal method |
| JPS6213581A (en) * | 1985-07-11 | 1987-01-22 | Showa Alum Corp | Heat exchanger for bath furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440864A (en) * | 2015-05-11 | 2017-02-22 | 蒋超 | Working method of energy-saving environment-friendly air conditioning system |
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