JPS58210431A - Collector of solar heat water heater - Google Patents
Collector of solar heat water heaterInfo
- Publication number
- JPS58210431A JPS58210431A JP57091449A JP9144982A JPS58210431A JP S58210431 A JPS58210431 A JP S58210431A JP 57091449 A JP57091449 A JP 57091449A JP 9144982 A JP9144982 A JP 9144982A JP S58210431 A JPS58210431 A JP S58210431A
- Authority
- JP
- Japan
- Prior art keywords
- collector
- resistance
- stainless steel
- corrosion
- welded
- 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
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
- F24S10/504—Solar heat collectors using working fluids the working fluids being conveyed between plates having conduits formed by paired non-plane plates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は太陽熱温水器のステンレス鋼板のコレクター（
集熱器）の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a stainless steel plate collector for a solar water heater (
Regarding improvements to heat collectors.
従来から太陽熱温水器のコレクター（以下単にコレクタ
ーと呼ぶ）は、ステンレス鋼板を波形になるように多数
の等間隔の平行線に従って山と谷を形成し、その両端部
において互いちがいに一つ置きに短い部分だけ谷部の形
成を省略したものを造り、その２枚を対称に重ね合せて
、接触する周縁を抵抗溶接し、谷部を連続または断続に
抵抗溶接し、さらに両端に端板を溶接して製造されてい
る。Conventionally, collectors for solar water heaters (hereinafter simply referred to as collectors) are made by forming a stainless steel plate into a corrugated shape with a number of equally spaced parallel lines forming peaks and valleys, and at both ends, every other one is shorter. The two pieces are made by omitting the formation of the valley part, and the two pieces are overlapped symmetrically, the contacting peripheral edges are resistance welded, the valley part is continuously or intermittently resistance welded, and the end plates are welded to both ends. Manufactured by
然しなからこのような方法で製作したコレクターにおい
ては、溶接部の近傍の熱影響部に酸化スケールが生成し
、このスケールの付着した部分は耐食性が低下している
ので腐食発生の起点となシ易い。このような溶接部近傍
では広い範囲にわたって、上下２枚のステンレス鋼板が
重なり合って完全に密着した部分から密着していない部
分への隙間が形成されており、このような部分では、隙
間腐食を生じ易い欠陥を有している。事実、 ５ＵＳ３
０４ならびにさらに高耐食鋼のＳＵＳ ４４４で製作し
たコレクターが、実用環境において抵抗溶接部で隙間腐
食を生じて漏水した事例がみられる。However, in collectors manufactured using this method, oxidized scale forms in the heat-affected zone near the welds, and the areas where this scale adheres have reduced corrosion resistance, making them a starting point for corrosion. easy. In the vicinity of such welds, the two stainless steel plates overlap over a wide area, creating a gap between the part where they are completely adhered and the part where they are not, and crevice corrosion can occur in such areas. It has easy defects. In fact, 5US3
There have been cases where collectors made of 04 and SUS 444, a highly corrosion-resistant steel, have leaked water due to crevice corrosion at resistance welds in practical environments.
このようなステンレス鋼製コレクター抵抗溶接部の腐食
対策としてはこれまでに腐食の発生源になり易い浴接時
に生成する酸化スケールを軽減又は防止する方法ならび
に隙間を拡大する方法等が講じられている。しかしこれ
らの方法ではコレクターの構造上、抵抗溶接部の隙間を
無くすることが出来ないため、腐食の発生源が除去され
ておらず、完全な腐食防止方法にはなっていない。As countermeasures against corrosion of such stainless steel collector resistance welds, methods have been taken to reduce or prevent oxidized scales generated during bath contact, which tend to be a source of corrosion, and methods to enlarge gaps. . However, because these methods cannot eliminate gaps between resistance welds due to the structure of the collector, the source of corrosion is not removed, and they are not complete corrosion prevention methods.
本発明はステンレス鋼製コレクターの抵抗溶接部の隙間
腐食防止策を種々検討した結果、犠牲陽極材の金属の薄
板を抵抗溶接部の隙間内に挿入することによって、金属
薄板の防食作用で腐食を完全に防止する方法を見出した
ものである。As a result of various studies on how to prevent crevice corrosion in the resistance welded parts of stainless steel collectors, the present invention was developed by inserting a thin metal plate of the sacrificial anode material into the crevice of the resistance welded part. We have found a way to completely prevent it.
即ち２本発明は前記のように熱交換媒体（水）流路を成
形した２枚のステンレス鋼板を重ね合せて、外周を溶接
し、さらに要所、要所を抵抗溶接する場合に不可避的に
形成される隙間部分に前取ってアルミニ々へ薄板を挿入
してから溶接施工し隙間部の腐食をアルミニウム薄板の
犠牲陽極材で防止することを特徴とするもので９本発明
によれば、ステンレス鋼板を波形になるように多数の等
間隔の平行線に従って山と谷を形成し、その両端部にお
いて互いちがいに一つおきに短い部分たけ谷部の形成を
省略したものを造り、その２８．を対称に重ね合せて、
接触する周縁をシーム抵抗溶接し、谷部を連続的または
断続的に抵抗溶接し、さらに両端に端板を溶接して形成
される太陽熱温水器のコレクターにおいて、抵抗溶接部
にアルミニウムの薄板が間挿されて溶接されていること
を特徴とするコレクターが提供される。In other words, the present invention unavoidably involves overlapping two stainless steel plates with heat exchange medium (water) flow paths formed thereon as described above, welding the outer periphery, and then resistance welding important points. According to the present invention, a thin plate is inserted into the aluminum in advance into the gap to be formed, and then welding is performed, and corrosion in the gap is prevented with a sacrificial anode material of the aluminum thin plate. 28. A steel plate is made by forming peaks and valleys along a number of equally spaced parallel lines so as to form a corrugated shape, and omitting the formation of short valleys at every other end at each end.28. symmetrically superimpose the
In solar water heater collectors, which are formed by seam resistance welding at the contacting edges, continuous or intermittent resistance welding at the valleys, and end plates welded at both ends, a thin aluminum plate is inserted between the resistance welds. A collector is provided that is inserted and welded.
本発明のコレクターに使用されるアルミニウム薄板の厚
さは特に限定はないが、薄板の語は文字通りの薄めの板
から箔と呼ばれる厚さの領域までを含み、現常使用され
ている０、３〜０．４朋程度のステンレス鋼板で製作さ
れたコレクターにおいて。There is no particular limitation on the thickness of the aluminum thin plate used in the collector of the present invention, but the term thin plate includes everything from literally thin plates to thick areas called foils, and the term 0,3 In a collector made of stainless steel plate of ~0.4 mm.
実験室的〜経験的におよそ０．１朋以下が良好であり更
に０．０５〜０．１闘の範囲が最も好ましい。実用環境
即ち水質の変異によってアルミニウム薄板の犠牲陽極材
としての消耗量はずいぶん変るものであるが、コレクタ
ーの寿命の間、犠牲陽極効果を発揮し続けるには経験的
に最低０．０５朋以上の厚さが必要であり、又抵抗溶接
部分の溶接節回の確保とか、＃接条件の制限とか経済性
（価格）の観点から厚さ上限を決定すればよいのである
。From laboratory to empirical results, a range of about 0.1 to about 0.1 or less is good, and a range of 0.05 to 0.1 is most preferred. Although the amount of aluminum thin plate used as a sacrificial anode material varies considerably depending on the practical environment, that is, variations in water quality, it has been empirically shown that a minimum of 0.05 mm is required to continue exhibiting the sacrificial anode effect during the life of the collector. The thickness is necessary, and the upper limit of the thickness can be determined from the viewpoint of economic efficiency (price), such as securing welding joints of the resistance welded portion, limiting the # contact conditions, and so on.
その面積についても限定はないが、コレクタ一部材の谷
の部分に形成される隙間全体をカバーする面積があるの
が望ましい。Although there is no limit to the area, it is desirable that the area covers the entire gap formed in the valley of the collector member.
以下添付図面を参照して本発明を具体的に説明する。The present invention will be specifically described below with reference to the accompanying drawings.
第１図は従来のコレクターの部分的断面図である。波形
に曲げられた２枚のパネルＡ、Ａ’が対称的に重ねられ
て谷の部分４が抵抗浴接され、山の間に熱交換媒体（代
表的には水辺流路４が形成されているが、溶接部１の近
傍において、コレクター内面の溶接熱影響部２に酸化ス
ケールが生じている。FIG. 1 is a partial cross-sectional view of a conventional collector. Two corrugated panels A and A' are stacked symmetrically, the valley portions 4 are in resistance bath contact, and a heat exchange medium (typically a waterside channel 4) is formed between the peaks. However, in the vicinity of the welded part 1, oxidized scale is generated in the weld heat affected zone 2 on the inner surface of the collector.
第２図は本発明に従って熱交換媒体流路を形成するため
に要所要所を連続的に又は断続的に抵抗溶接する部分の
溶接施工する前の断面状態である。FIG. 2 shows a cross-sectional state of a portion before welding of a portion where important points are continuously or intermittently resistance welded to form a heat exchange medium flow path according to the present invention.
波形のステンレス鋼板の溶接部を含めて隙間を形成する
部分にアルミニウム薄板Ｆを挿入して固定した状態を示
している。第６図は第２図のものを抵抗溶接した状態で
、隙間形成部に挿入したアルミニウム薄板Ｆは溶接施工
により、溶接部はステンレス鋼重ね板に溶着固定化し、
隙間形成部全面に密着又は挿入状態になっている。A thin aluminum plate F is inserted and fixed into the gap forming part of the corrugated stainless steel plate including the welded part. Figure 6 shows the one in Figure 2 resistance welded, the thin aluminum plate F inserted into the gap forming part is welded, and the welded part is fixed by welding to the stainless steel stacked plate.
It is in close contact with or inserted into the entire surface of the gap forming part.
このように抵抗浴接の隙間形成部にアルミニウム薄板を
挿入すると、アルミニウム薄板の犠牲陽極材としての腐
食防止の主効果と、抵抗隣接時アルミニウム薄板の優先
酸化によりステンレス鋼重“ね板内面の酸化スケールの
生成が抑制されることによシ腐食性が軽減する副次効果
によって、抵抗溶接部の隙間腐食の発生を完全に防止す
ることが出来る。抵抗溶接部に挿入する金属薄板はアル
ミニウム薄板の外にＳｎ 、 Ｃｕ等の卑金属の薄板で
も同様の効果を示すが、水質衛生上で問題がないことや
、低コスト、防食性能が良いことなどからアルミニウム
薄板が適材である。When a thin aluminum plate is inserted into the gap forming part of the resistance bath, the main effect of the thin aluminum plate is to prevent corrosion as a sacrificial anode material, and the preferential oxidation of the thin aluminum plate when adjacent to the resistor prevents oxidation of the inner surface of the stainless steel overlapping plate. The secondary effect of reducing corrosion by suppressing scale formation makes it possible to completely prevent the occurrence of crevice corrosion in resistance welds. Although thin sheets of base metals such as Sn and Cu exhibit similar effects, thin sheets of aluminum are suitable because they pose no problems in terms of water quality and hygiene, are low in cost, and have good corrosion resistance.
本発明はこのようにして、太陽熱温水器のステンレス鋼
製コレクターの抵抗溶接部および隙間部の腐食発生を完
全に防止することができる顕著な効果を有するものであ
る。In this way, the present invention has the remarkable effect of completely preventing the occurrence of corrosion in the resistance welds and gaps of the stainless steel collector of a solar water heater.
以下１本発明の効果を実施例に基いて説明する。The effects of the present invention will be explained below based on examples.
Ｑ、 ３ ｊｌｌＩ厚のＳＵＳ ４４４ を用いて本
発明に従って実益コレクターを作成し、貯湯槽を組込ん
で。Q. Create a practical collector according to the present invention using SUS 444 with a thickness of 3 mm, and incorporate a hot water storage tank.
太陽熱による実地試験した結果を下記に示す。The results of a field test using solar heat are shown below.
供試コレクター０３朋厚、６００Ｘ１２００朋を屋上に
設置し、２ｏｏｐｐｍのＣ７−を含む水を試験溶液とし
て６ケ月間（７月〜１０月）の実地試験を行なった結果
を表１に示す。従来法のものはいずれも抵抗溶接部より
隙間腐食を起し、漏水しているのに対して本発明のコレ
クターはきびしい腐食条件にも拘らず充分な耐食性を示
した。Table 1 shows the results of a 6-month field test (July to October) using a sample collector 03 Tomo Atsushi, 600 x 1200 Tomo, installed on the roof, and using water containing 2 oppm of C7- as the test solution. In contrast to the conventional collectors, which caused crevice corrosion and water leakage from the resistance welds, the collectors of the present invention exhibited sufficient corrosion resistance despite severe corrosion conditions.
表１ コレクターの腐食試験結果 評 価 ０腐食ナシ Ｘ腐食発生試験条件 試験液 ２００ ｐｐｒｒｌｃｌ− 試験期間 ６ケ月 液吏新 １回／週 コレクター材質 ８Ｕ８４４４Table 1 Collector corrosion test results Evaluation: 0 No corrosion X Corrosion occurrence test conditions Test liquid 200 pprrlcl- Test period: 6 months Liquid Licensing 1 time/week Collector material 8U8444
第１図は従来のコレクターの拡大断面図。
第２図は本発明のコレクターの溶接前の拡大図。
第６図は本発明のコレクターの俗接後の拡大図。
これらの図において。
Ａ、Ａ’：波形のステンレス鋼板
４：谷の部分
１：溶接部、 ２：熱影響部。
Ｆニアルミニウム薄板
特許出願人 日新製鋼株式会社
代理人 弁理士 松 井 政 広
（外２名）
第１図
第３図
ｌ−布’ｅ ｆｌｕ ｉＬ ｉ’！昭和５
８年５月２４日
特許庁長官 若杉和夫 殿
１、事件の表示
昭和５７年特 許 願第０９１４４９号２、発明の名称
太陽熱温水器のコレクター３、 補正をする者
事件との関係 特許出願人
住 所東京都千代田区丸の白玉丁目４番１号氏 名（名
称）（４５８）日新製鋼株式会社４、代理人
５、 補正命令の日付 自発
６、 補正により増加する発明の数なし７、補正の対象
明細書の特許請求の範囲及び発明の詳細な説明の各欄
８、補正の内容別紙のとおり
補正の内容
１３％許粕求の範囲を次のように訂正する。
１゛１． ステンレス鋼板を波形になるように多数の
等間隔の平行線に従って山と谷を形成し、その両端部に
おいて互いちがいに一つおきに短い部分だけ谷部の形成
を省略したものを造り、その２枚を対称に車ね合せて、
接触する周縁をシーム抵抗溶接し、谷部を連続的または
断続的に抵抗溶接し、さらに両端に端板を溶接して形成
される太陽熱温水器のコレクターにおいて、抵抗溶接部
にアルミニウムの薄板が間挿されて溶接されていること
を特徴とするコレクター。」
２明細書７頁記載の表１を次のように訂正する。Figure 1 is an enlarged sectional view of a conventional collector. FIG. 2 is an enlarged view of the collector of the present invention before welding. FIG. 6 is an enlarged view of the collector of the present invention after the collector is attached. In these figures. A, A': Corrugated stainless steel plate 4: Valley portion 1: Weld zone, 2: Heat affected zone. F Nialuminum thin plate patent applicant Nisshin Steel Co., Ltd. Agent Patent attorney Masahiro Matsui (2 others) Figure 1 Figure 3 l-Flu 'e flu iLi'! Showa 5
May 24, 1998 Kazuo Wakasugi, Commissioner of the Patent Office1, Indication of the case 1982 Patent Application No. 0914492, Title of the invention Solar water heater collector3, Relationship with the case of the person making the amendment Patent applicant residence Address: 4-1 Shiratama-chome, Maruno, Chiyoda-ku, Tokyo Name (458) Nisshin Steel Co., Ltd. 4, Agent 5, Date of amendment order Voluntary action 6, Number of inventions not increased by amendment 7, Amendment Subject of the amendment As shown in each column 8 of the scope of claims and detailed description of the invention in the specification, and the contents of the amendment, the scope of the 13% allowance request is amended as follows. 1゛1. A stainless steel plate is made by forming peaks and valleys along a large number of equally spaced parallel lines in a corrugated manner, and omitting the formation of valleys in every other short part at both ends of the plate. Align the wheels symmetrically,
In solar water heater collectors, which are formed by seam resistance welding at the contacting edges, continuous or intermittent resistance welding at the valleys, and end plates welded at both ends, a thin aluminum plate is inserted between the resistance welds. A collector characterized by being inserted and welded. ” 2 Table 1 on page 7 of the specification is corrected as follows.
Claims (1)
の平行線に従って山と谷を形成し、その両端部において
互いちがいに一つおきに短い部分だけ谷部の形成を省略
したものを造り、その２枚を対称に重ね合せて、接触す
る周縁をシーム抵抗溶接し、谷部を連続的または断続的
に抵抗溶接し、さらに両端に端板を溶接して形成される
太陽熱温水器のコレクターにおいて、抵抗溶接部にアル
ミニウムの薄板が間挿されて溶接されていることを特徴
とするコレクター。1. A stainless steel plate is made by forming peaks and valleys along a large number of equally spaced parallel lines in a corrugated manner, and omitting the formation of valleys in every other short section at both ends. In a solar water heater collector formed by stacking two sheets symmetrically, seam resistance welding the contacting edges, continuous or intermittent resistance welding the valleys, and further welding end plates to both ends, A collector characterized by a thin aluminum plate inserted and welded into the resistance welded part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57091449A JPS58210431A (en) | 1982-05-31 | 1982-05-31 | Collector of solar heat water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57091449A JPS58210431A (en) | 1982-05-31 | 1982-05-31 | Collector of solar heat water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58210431A true JPS58210431A (en) | 1983-12-07 |
Family
ID=14026667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57091449A Pending JPS58210431A (en) | 1982-05-31 | 1982-05-31 | Collector of solar heat water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58210431A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100388044B1 (en) * | 2000-09-04 | 2003-06-18 | 주식회사 포스코 | Panel of solar collector and apparatus for manufacturing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57451A (en) * | 1980-06-02 | 1982-01-05 | Nippon Steel Corp | Manufacture of solar heat adsorbing plates |
-
1982
- 1982-05-31 JP JP57091449A patent/JPS58210431A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57451A (en) * | 1980-06-02 | 1982-01-05 | Nippon Steel Corp | Manufacture of solar heat adsorbing plates |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100388044B1 (en) * | 2000-09-04 | 2003-06-18 | 주식회사 포스코 | Panel of solar collector and apparatus for manufacturing the same |
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