JPH0225459Y2 - - Google Patents
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- Publication number
- JPH0225459Y2 JPH0225459Y2 JP1982100453U JP10045382U JPH0225459Y2 JP H0225459 Y2 JPH0225459 Y2 JP H0225459Y2 JP 1982100453 U JP1982100453 U JP 1982100453U JP 10045382 U JP10045382 U JP 10045382U JP H0225459 Y2 JPH0225459 Y2 JP H0225459Y2
- Authority
- JP
- Japan
- Prior art keywords
- copper
- basket
- seawater
- screen
- based alloy
- 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.)
- Expired
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Description
【考案の詳細な説明】
本考案は養殖漁業に於ける海水生簀や、火力発
電所の復水器冷却水の取水口等に使用する海水取
水口用スクリーンに関するものである。[Detailed Description of the Invention] The present invention relates to a seawater intake screen used for seawater cages in aquaculture and for condenser cooling water intakes in thermal power plants.
一般に養殖場や火力発電所等では、海水をポン
プで吸み上げて生簀内や復水器へ循環させると共
に、海水の吸入口にはスクリーンを配設して塵等
の吸入を防止する様にしている。 Generally, at aquaculture farms, thermal power plants, etc., seawater is sucked up by pumps and circulated into fish cages and condensers, and a screen is installed at the seawater inlet to prevent inhalation of dust, etc. ing.
而して、従前のこの種海水取水口用スクリーン
は、海水による腐食を防止するという観点からス
テンレス鋼製のスクリーンが広く一般に使用され
ており、これにより耐食性に関する問題は略完全
に解決されている。 Therefore, for conventional screens for seawater intakes of this type, stainless steel screens have been widely used from the viewpoint of preventing corrosion caused by seawater, and this has almost completely solved the problem of corrosion resistance. .
然し乍ら、従前の海水取水口用スクリーンに
は、未だ海草や牡蛎がら等の付着による目詰まり
の問題が未解決の課題として残されており、装置
の保守管理上に様々な支障を生じている。即ち、
海水中に漬けられているスクリーンには海草や牡
蛎等がすぐ付着し、その結果目詰まりを起して吸
水量が低下する等の障害を生じるため、スクリー
ンの掃除を頻繁に行わねばならないという難点が
ある。 However, conventional seawater intake screens still have the unresolved problem of clogging due to adhesion of seaweeds, oyster shells, etc., which causes various problems in the maintenance and management of the equipment. That is,
Seaweed, oysters, etc. can easily attach to screens that are submerged in seawater, resulting in clogging and problems such as reduced water absorption, so the screen must be cleaned frequently. There is.
本考案は、この種海水取水口用スクリーンに於
ける上述の如き問題の解決を課題とするものであ
り、耐食性に優れ、然かも牡蛎等の固着による目
詰まりを皆無にしたスクリーンを提供することを
目的とするものである。 The object of the present invention is to solve the above-mentioned problems with this type of seawater intake screen, and to provide a screen that has excellent corrosion resistance and is completely free from clogging due to adhesion of oysters, etc. The purpose is to
本考案は、銅59.0〜63％、鉛1.0〜3.0％、錫0.5
〜1.5％、ニツケル0.5〜2.0％、クロム0.001〜1.0
％および残部が亜鉛からなる耐食性銅基合金製の
金網、パンチングメタル若しくは桟体により適宜
の大きさの網目を有する篭状本体を形成し、該篭
状本体の一側面に吸水管挿入孔を設けたことを基
本構成とするものであり、当該構成とすることに
より、牡蛎等の固着による目詰まりを略完全に防
止することが出来る。 This invention consists of 59.0~63% copper, 1.0~3.0% lead, and 0.5% tin.
~1.5%, Nickel 0.5~2.0%, Chromium 0.001~1.0
A basket-shaped body having a mesh of an appropriate size is formed using a wire mesh, punched metal, or crosspiece made of a corrosion-resistant copper-based alloy, the remainder of which is zinc, and a water absorption pipe insertion hole is provided on one side of the basket-shaped body. This is the basic configuration, and with this configuration, clogging due to adhesion of oysters etc. can be almost completely prevented.
以下、第１図及至第３図に示す本考案の一実施
例に基づいてその詳細を説明する。 Hereinafter, the details will be explained based on an embodiment of the present invention shown in FIGS. 1 to 3.
第１図は本考案の第１実施例に係るスクリーン
の斜面図であり、図に於いて１は銅又は銅基合金
製の枠体、２は金網、３は吸水管挿入孔、４は固
定ナツトである。 Figure 1 is a perspective view of the screen according to the first embodiment of the present invention, in which 1 is a frame made of copper or copper-based alloy, 2 is a wire mesh, 3 is a water suction pipe insertion hole, and 4 is a fixed It's Natsuto.
前記金網２としては、適宜の網目を有する銅製
金網か若しくは銅基合金製金網が使用されてお
り、枠体１に貼付固着されている。尚、耐食性を
高めるためには、金網２及び枠体１の材料として
錫の他にニツケルを含有した銅基合金を使用する
のが望ましく、動に銅59.0〜63％、鉛1.0〜3.0％、
錫0.5〜1.5％、ニツケル0.5〜2.0％、クロム0.001
〜1.0％及び残部が亜鉛からなる銅基合金は、ニ
ツケルと錫との相乗効果によつて耐食性が著しく
向上すると共に、機械的性質並びに熱間加工性の
点に於いても秀れ、他の如何なる成分の銅基合金
よりも当該用途に最適である。 As the wire mesh 2, a copper wire mesh or a copper-based alloy wire mesh having an appropriate mesh is used, and is adhered and fixed to the frame 1. In order to improve corrosion resistance, it is desirable to use a copper-based alloy containing nickel in addition to tin as the material for the wire mesh 2 and the frame 1, with a copper base alloy containing 59.0 to 63% copper, 1.0 to 3.0% lead, and 1.0 to 3.0% lead.
Tin 0.5-1.5%, Nickel 0.5-2.0%, Chromium 0.001
Copper-based alloys consisting of ~1.0% and the balance of zinc have significantly improved corrosion resistance due to the synergistic effect of nickel and tin, and also have superior mechanical properties and hot workability. It is more suitable for this purpose than copper-based alloys of any composition.
吸水管挿入孔３は、吸水管の管サイズに合致す
る外径で篭状本体Ａの一側に形成されており、吸
水管を挿入してナツト４を締込むことにより、篭
状本体Ａは簡単に吸水管へ装着できる構成となつ
ている。尚、本実施例では篭状本体Ａを直方体状
に形成しているが、球形若しくはその他の形状で
あつてもよいことは勿論である。 The water suction pipe insertion hole 3 is formed on one side of the basket-shaped main body A with an outer diameter that matches the pipe size of the water suction pipe, and by inserting the water suction pipe and tightening the nut 4, the basket-like main body A can be inserted. It has a structure that allows it to be easily attached to the water suction pipe. In this embodiment, the basket-like main body A is formed into a rectangular parallelepiped shape, but it goes without saying that it may be spherical or other shapes.
第２図及び第３図は本考案の他の実施例を示す
ものであり、第２図では金網２に替えて、銅又は
銅基合金製の適宜の外径の抜穴を有するパンチン
グメタル５が使用されている。又、第３図では、
銅又は銅基合金製の桟体６を組み合せることによ
り、適宜の格子目を有する篭状本体Ａが構成され
ており、主として火力発電所等の冷却用海水の取
水口等に設備されるものである。 FIGS. 2 and 3 show other embodiments of the present invention, and in FIG. 2, instead of the wire mesh 2, a punched metal 5 made of copper or copper-based alloy and having holes of an appropriate outer diameter is used. is used. Also, in Figure 3,
By combining frames 6 made of copper or copper-based alloy, a basket-shaped main body A having an appropriate lattice is constructed, and is mainly installed at the cooling seawater intake of thermal power plants, etc. It is.
次に本考案に係るスクリーンの作用効果につい
て説明する。 Next, the effects of the screen according to the present invention will be explained.
銅や銅基合金は海水と接触することによつてそ
の外表面に銅イオンを析出する。その結果、銅等
の外表面は銅イオン密度が上昇しあたかも銅イオ
ンで覆われた様な状態となる。 Copper and copper-based alloys deposit copper ions on their outer surfaces when they come into contact with seawater. As a result, the copper ion density increases on the outer surface of copper, etc., and it becomes as if it were covered with copper ions.
一方、銅イオンには所謂殺菌効果があり、この
銅イオンの影響により、牡蛎や貝、海草等がスク
リーンに固着して成長するのが阻害され、スクリ
ーン外表面は常にきれいな状態に保持される。そ
の結果、スクリーンの掃除や点検に要する手数が
殆んど不要となる。尚、銅イオンが存在すれば何
故牡蛎等が固着しないかについては、未だ明確な
答えが出ていない。しかし、恐らく上述の如く銅
イオンの殺菌効果によりその成長が阻害されるか
らであると想定される。 On the other hand, copper ions have a so-called bactericidal effect, and due to the influence of copper ions, oysters, shellfish, seaweed, etc. are inhibited from adhering to and growing on the screen, and the outer surface of the screen is always maintained in a clean state. As a result, there is almost no need for cleaning or inspecting the screen. However, there is still no clear answer as to why oysters and the like do not stick to the copper ions. However, it is assumed that this is probably because the growth is inhibited by the bactericidal effect of copper ions as described above.
又本考案に於いて、ニツケルを0.5〜2.0％含有
せしめたことを特徴とする前記銅基合金を使用し
た場合には、スクリーンの海水中に於ける耐食性
が著しく向上し、ニツケルを含まない他の銅基合
金の場合に比較して耐用年数を大幅に延伸するこ
とが出来る。 In addition, in the present invention, when the copper-based alloy containing 0.5 to 2.0% of nickel is used, the corrosion resistance of the screen in seawater is significantly improved; The service life can be significantly extended compared to that of copper-based alloys.
尚、本考案に於いて使用した前記ニツケルを含
む銅基合金を、ISO 6509で規定する脱亜鉛腐食
試験法によつて試験した結果によれば、脱亜鉛深
さが0.02mmとなる。これに対してニツケルを含ま
ないJIS規格鍛造用黄銅では脱亜鉛深さが0.93mm、
錫を添加した市販の耐食性黄銅で0.36mmであり、
本考案で使用するニツケルを含む銅基合金の秀れ
た耐食性が、前記試験によつて確認されている。 According to the results of testing the nickel-containing copper-based alloy used in the present invention using the dezincification corrosion test method specified in ISO 6509, the dezincing depth was 0.02 mm. On the other hand, JIS standard forging brass that does not contain nickel has a dezincing depth of 0.93 mm.
Commercially available corrosion-resistant brass with tin added, 0.36 mm.
The excellent corrosion resistance of the copper-based alloy containing nickel used in the present invention has been confirmed by the above tests.
本考案は上述の通り、養漁施設や火力発電所等
の海水取水口の保守点検回数を大幅に減らすこと
が出来るという、秀れた実用的効用を有するもの
である。 As mentioned above, the present invention has excellent practical utility in that it can significantly reduce the number of maintenance inspections of seawater intakes in fishing facilities, thermal power plants, etc.
第１図は本考案の第１実施例に係る海水取水口
用スクリーンの斜面図である。第２図及び第３図
は本考案の他の実施例を示す斜面図である。
Ａ……篭状本体、１……枠体、２……金網、３
……吸水管挿入孔、４……固定ナツト、５……パ
ンチングメタル、６……桟体。
FIG. 1 is a perspective view of a seawater intake screen according to a first embodiment of the present invention. 2 and 3 are perspective views showing other embodiments of the present invention. A...basket-shaped main body, 1...frame body, 2...wire mesh, 3
... Water suction pipe insertion hole, 4 ... Fixing nut, 5 ... Punching metal, 6 ... Crosspiece.
Claims (1)
ツケル0.5〜2.0％、クロム0.001〜1.0％および残
部が亜鉛からなる耐食性銅基合金製の金網、パン
チングメタル若しくは桟体により適宜の大きさの
網目を有する篭状本体を形成し、該篭状本体の一
側面に吸水管挿入孔を配設して成る海水取水口用
スクリーン。 Appropriately by wire mesh, punched metal, or crosspiece made of a corrosion-resistant copper-based alloy consisting of 59.0 to 63% copper, 1.0 to 3.0% lead, 0.5 to 1.5% tin, 0.5 to 2.0% nickel, 0.001 to 1.0% chromium, and the balance zinc. A seawater intake screen comprising a basket-shaped body having a mesh size of , and a water intake pipe insertion hole provided on one side of the basket-shaped body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10045382U JPS597015U (en) | 1982-07-01 | 1982-07-01 | Seawater intake screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10045382U JPS597015U (en) | 1982-07-01 | 1982-07-01 | Seawater intake screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS597015U JPS597015U (en) | 1984-01-18 |
| JPH0225459Y2 true JPH0225459Y2 (en) | 1990-07-12 |
Family
ID=30237629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10045382U Granted JPS597015U (en) | 1982-07-01 | 1982-07-01 | Seawater intake screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS597015U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5920811U (en) * | 1982-07-30 | 1984-02-08 | 三宝伸銅工業株式会社 | Seawater intake screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5555784Y2 (en) * | 1972-10-04 | 1980-12-24 |
-
1982
- 1982-07-01 JP JP10045382U patent/JPS597015U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS597015U (en) | 1984-01-18 |
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