JPH0754322A - Artificial ascending current forming method - Google Patents

Artificial ascending current forming method

Info

Publication number
JPH0754322A
JPH0754322A JP5190432A JP19043293A JPH0754322A JP H0754322 A JPH0754322 A JP H0754322A JP 5190432 A JP5190432 A JP 5190432A JP 19043293 A JP19043293 A JP 19043293A JP H0754322 A JPH0754322 A JP H0754322A
Authority
JP
Japan
Prior art keywords
flow
artificial
walls
watercourse
directions
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
Application number
JP5190432A
Other languages
Japanese (ja)
Other versions
JP3324664B2 (en
Inventor
Takashi Asae
隆 浅枝
Yoshitsugu Goami
喜嗣 其阿弥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aoki Corp
Japan Industrial Land Development Co Ltd
Original Assignee
Aoki Corp
Japan Industrial Land Development Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aoki Corp, Japan Industrial Land Development Co Ltd filed Critical Aoki Corp
Priority to JP19043293A priority Critical patent/JP3324664B2/en
Publication of JPH0754322A publication Critical patent/JPH0754322A/en
Application granted granted Critical
Publication of JP3324664B2 publication Critical patent/JP3324664B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40Protecting water resources
    • Y02A20/402River restoration
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

Landscapes

  • Farming Of Fish And Shellfish (AREA)

Abstract

PURPOSE:To form an artificial fishing ground and restore a river after scouring by arranging, in a watercourse, an integrated structure provided with walls in at least three directions and artificially welling forth water in the depths. CONSTITUTION:An integrated structure 1 provided with walls, for example, in three directions is arranged on the bottom of a watercourse. At this time, a plane V shape is formed for respective directions of flow A, B, C by an intersection point formed by at least two walls. The watercourse flow is disturbed and a vortex is made by the wall surface of the integrated structure 1. Simultaneously, the watercourse flowing direction is changed and a high ascending current of more than ten times is formed. Furthermore, the scale and the height of the ascending currnt is adjusted by freely selecting the heights L and the opening angles alpha of the respective walls. Thus water in the depths rich in nutritive elements can be welled forth and a new fishing ground can be made up.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、人工上昇流の形成方
法に関するものである。さらに詳しくは、この発明は、
海域深層水の湧昇による漁場形成や河川の洗掘の修復な
どに有用な人工上昇流の形成方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming an artificial upflow. More specifically, the present invention is
The present invention relates to a method for forming artificial updrafts useful for forming fishing grounds by upwelling deep sea water and repairing river scouring.

【0002】[0002]

【従来の技術】地球表面の7割を占める海洋の資源の開
発として、植物プランクトンの成長に必要な栄養塩類に
富み、細菌や寄生生物が少なく、水温が低く安定してい
る深層水を人工的に湧昇させて新しい漁場を形成しよう
との構想が注目されており、これまでにもいくつかの人
工湧昇のための上昇流の形成方法についての提案がなさ
れてきている。
2. Description of the Related Art As the development of marine resources that occupy 70% of the earth's surface, artificial deep-sea water that is rich in nutrients necessary for phytoplankton growth, low in bacteria and parasites, and stable in low water temperature Attention has been focused on the idea of forming a new fishing ground by the upwelling of rivers, and several proposals have been made so far for methods of forming updrafts for artificial upwelling.

【0003】たとえば、ラッパ状の構造物によって海底
部の流れを収束させ、上方へ渦流を噴出させる方法や、
海底の流れに直交した位置で壁体を設ける方法、あるい
は人工山脈を形成し、海流をこれらに衝突させて上昇流
を形成する方法などが提案されている。しかしながら、
これらのいずれの方法によっても、海表面から100〜
300m程度の深さを流れる深層水を人工漁場形成のた
めに海表面近傍にまで上昇させることはそれほど簡単な
ことではないことが明らかになってきている。
For example, a method of converging the flow at the sea bottom by a trumpet-shaped structure and ejecting a vortex upward,
A method of providing a wall at a position orthogonal to the flow of the seabed, a method of forming an artificial mountain range, and causing an ocean current to collide with these to form an ascending current have been proposed. However,
By any of these methods, 100 ~
It has become clear that it is not so easy to raise deep water flowing at a depth of about 300 m to the vicinity of the sea surface to form an artificial fishing ground.

【0004】これまでに提案されている方法では、上昇
流を所定の高さまで海底部より形成するためには、極め
て大型で、しかも海表面近傍までの高さの壁体や人工海
底山脈を造築することが必要となり、このような構造物
の造築は、海表面部の流れを阻害し、海洋流のバランス
を崩す原因となるばかりか、海上交通のための船舶の航
路にも影響を及ぼすという重大な欠点がある。
In the methods proposed so far, in order to form an upflow from the seabed to a predetermined height, an extremely large wall body or artificial seabed mountain range having a height close to the sea surface is constructed. It is necessary to build it, and the construction of such a structure not only hinders the flow of the sea surface and disturbs the balance of the ocean current, but also affects the route of the ship for maritime traffic. There is a serious drawback of exerting it.

【0005】これらの欠点は、いずれも、これまでの方
法では、充分な高さまで湧昇する上昇流を形成すること
ができないという事実によるものである。このため、深
層水の利用については、300m以上のパイプとポンプ
とによって深層水をくみ上げるという開発プロジェクト
が唯一現実性がある試みとして着手されているにすぎな
い。しかしながら、この方法には設備およびエネルギー
に膨大なコストがかかり、しかも、実現される利用規模
も小さいという欠点がある。
Both of these drawbacks are due to the fact that the conventional methods cannot form an updraft upwelling to a sufficient height. For this reason, regarding the use of deep water, a development project of pumping deep water with a pipe and a pump of 300 m or more has only begun as a realistic attempt. However, this method has the drawbacks that the facility and energy costs are enormous, and the utilization scale is small.

【0006】このような状況において、この発明の発明
者は、これまでに全く知られていない方法として、流路
底部に略V字形構造体を設置し、極めて大きな上昇流を
形成することのできる人工上昇流の形成方法をすでに提
案してもいる(特開平2−299525号)。この方法
は、今後の上昇流形成のための技術展開を主導する重要
な技術として注目されているものである。
In such a situation, the inventor of the present invention can install a substantially V-shaped structure at the bottom of the flow path to form an extremely large upward flow, as a method that has never been known so far. A method for forming an artificial ascending flow has already been proposed (JP-A-2-299525). This method is attracting attention as an important technology that will lead the technological development for future updraft formation.

【0007】一方、その後の検討において、この新しい
方法の特徴を生かしつつ、さらに実用的見地からより有
効な方法としての発展が望まれてもいた。その理由は、
海域における流れ方向の変化への対応や、より相乗的な
上昇効果等を実現することが求められているからであ
る。この発明は、以上の通りの事情に鑑みてなされたも
のであり、従来方法の限界を克服し、前記のこの発明者
によって提案された方法をさらに発展させ、より高い湧
昇を実現でき、流れ方向の変化等への対応も容易であっ
て、実際の海洋域でも有効に利用することのできる新し
い人工上昇流の形成方法を提供することを目的としてい
る。
On the other hand, in the subsequent studies, it was desired to develop the method as a more effective method from the practical viewpoint while making the most of the characteristics of this new method. The reason is,
This is because it is required to respond to changes in the flow direction in the sea area and to achieve a more synergistic rise effect. The present invention has been made in view of the circumstances as described above, overcomes the limitations of the conventional method, further develops the method proposed by the inventor, and can achieve higher upwelling. It is an object of the present invention to provide a new method for forming an artificial updraft that can be easily used even in actual ocean areas because it can easily respond to changes in direction, etc.

【0008】[0008]

【課題を解決するための手段】この発明は、上記の課題
を解決するものとして、流路に少くとも三方向の壁部を
有する一体構造体を配置して上昇流を形成することを特
徴とする人工上昇流の形成方法を提供する。
In order to solve the above-mentioned problems, the present invention is characterized in that an integral structure having walls in at least three directions is arranged in a flow path to form an upward flow. A method for forming an artificial upflow is provided.

【0009】[0009]

【作用】この発明においては、上記の通り、少くとも三
方向に壁部を有する一体構造体を配置するため、流れに
対しては、壁部の交点において形成される略V字形もし
くはU字形の上昇流形成のための機構が存在する。この
ため、流れ方向が変化しても、その変化に対応して上昇
流形成は容易であり、流れの合流等においても、上昇高
度は大きなものとなる。
In the present invention, as described above, since the integral structure having the wall portions is arranged in at least three directions, it is possible to form a substantially V-shaped or U-shaped portion formed at the intersection of the wall portions against the flow. There is a mechanism for upflow formation. Therefore, even if the flow direction changes, the ascending flow can be easily formed in response to the change, and the ascending altitude becomes large even when the flows merge.

【0010】しかも、構造体としての施工上および設置
上の安定性も大きくなる。たとえばこのような構造体と
しては、平面Y字形、X字形等の多様な構成が可能とな
る。そして、この構造体は、流路の底部に複数設置して
もよいし、流路にフロート状態で配置してもよい。ま
た、適宜な流れガイド手段を設けてもよい。
In addition, the stability in construction and installation as a structure is increased. For example, as such a structure, various configurations such as a plane Y-shape and an X-shape are possible. A plurality of the structures may be installed at the bottom of the flow channel, or may be arranged in the flow channel in a floating state. Moreover, you may provide an appropriate flow guide means.

【0011】この場合の流路としては、海水流路ばかり
でなく、河川、あるいは大型人工流路等の適宜なものを
対象とすることができる。以下、添付した図面に沿って
この発明の方法を詳しく説明する。
In this case, not only seawater channels but also rivers, large artificial channels, and the like can be used as the channels. Hereinafter, the method of the present invention will be described in detail with reference to the accompanying drawings.

【0012】[0012]

【実施例】図1および図2は、この発明の方法を模式的
に示したものである。この図1に示したように、この発
明の方法では、流路の底部に、三方向に壁部を有する一
体化構造体(1)を配置している。そして、流れ方向
(A)(B)(C)の各々に対して少くとも二つの壁部
により形成される交点によって平面V字形が構成されて
いる。この構造体(1)の配置により、流路の流れは、
この構造体(1)の壁面によって攪乱され、たとえば図
中に示したような渦流を生じる。この渦流は、図2に示
したような大きな上昇流となる。
1 and 2 schematically show the method of the present invention. As shown in FIG. 1, in the method of the present invention, an integrated structure (1) having walls in three directions is arranged at the bottom of the flow channel. Further, a plane V-shape is formed by an intersection point formed by at least two wall portions in each of the flow directions (A), (B), and (C). By the arrangement of this structure (1), the flow of the flow path is
The wall surface of the structure (1) disturbs the vortex flow as shown in the figure. This vortex becomes a large upflow as shown in FIG.

【0013】この場合、壁体構造物の高さ(L)に対し
て、上昇流の上昇高さの比が大きいほど人工上昇流とし
ては好ましいものであり、この発明の方法においては、
流路の流れ方向(A)の流速と、構造体(1)のV字形
の開き角度(α)との相関を調整することによって最適
なものとすることができる。そして図1から明らかなよ
うに、この発明の場合には、三方向の壁部を有する一体
化構造体(1)を配置しているため、流れ方向がたとえ
ば方向(A)から方向(B)または(C)に変化して
も、同様に上昇流を形成することが可能となる。
In this case, the larger the ratio of the rising height of the ascending flow to the height (L) of the wall structure, the more preferable as the artificial ascending flow. In the method of the present invention,
It can be optimized by adjusting the correlation between the flow velocity in the flow direction (A) of the flow channel and the V-shaped opening angle (α) of the structure (1). As is apparent from FIG. 1, in the case of the present invention, since the integrated structure (1) having the three-direction wall portions is arranged, the flow direction is, for example, the direction (A) to the direction (B). Alternatively, even if it changes to (C), it is possible to similarly form an upflow.

【0014】この場合の方向は、設置場所に応じて選定
することができる。つまり、より詳しくは、図3に例示
したように、各方向の壁部の高さ(L1 )(L2 )(L
3 )、開き角度(α1 )(α2 )(α3 )、長さ
(l1 )(l2 )(l3 )は、各々、同一でも異ってい
てもよい。主な流れの方向、流れの強度等に応じて選択
することができる。
The direction in this case can be selected according to the installation place. That is, more specifically, as illustrated in FIG. 3, the height (L 1 ) (L 2 ) (L
3 ), the opening angle (α 1 ) (α 2 ) (α 3 ), and the length (l 1 ) (l 2 ) (l 3 ) may be the same or different. It can be selected according to the main flow direction, flow intensity, and the like.

【0015】渦流による上昇流は、これらのファクター
の選択によりその規模および高さが制御可能となる。も
ちろん、構造体(1)は、その交点が鋭角的でなくとも
よい。たとえば図4のように、平面略U字形が形成され
るようにしてもよい。図5は、四方向に壁部を有する構
造体(2)を例示したものである。図6は、二方向(A
1 )(A2 )からの流れの合流に対して構造体(3)を
設置した例を示している。複数方向の流れに対応可能で
あるとともに、この発明の方法によって、前記の構造体
(1)(2)(3)は安定して設置されることになる。
The size and height of the upward flow due to the eddy current can be controlled by selecting these factors. Of course, the structure (1) does not have to have an acute intersection point. For example, as shown in FIG. 4, a substantially U-shaped plane may be formed. FIG. 5 illustrates a structure (2) having walls in four directions. FIG. 6 shows two directions (A
1 ) An example in which the structure (3) is installed for the confluence of the flows from (A 2 ). The structure (1), (2) and (3) can be stably installed by the method of the present invention while being able to cope with the flow in a plurality of directions.

【0016】図7は、ガイド壁(11)(12)を付設
し、流れをガイドするとともに、この発明の構造体
(1)によって集中的な上昇流を形成させるものであ
る。図8は、さらについ立形壁体(13)との組合わせ
配置例を示したものである。たとえば以上例示した構造
体を設置してのこの発明の人工上昇流の形成方法におい
ては、たとえば開き角度αが30〜70°程度とする
と、壁部の高さ(L)の約10倍以上の高さの上昇流が
容易に形成されることになる。流路の流速や、構造物の
形状、あるいはその他の条件を考慮して最適なものに選
択するならば、さらに大きなものとすることができる。
FIG. 7 shows a structure in which guide walls (11) and (12) are attached to guide the flow, and a concentrated upward flow is formed by the structure (1) of the present invention. FIG. 8 shows an example of a combined arrangement with the vertical wall body (13). For example, in the artificial ascending flow forming method of the present invention in which the structure illustrated above is installed, for example, when the opening angle α is about 30 to 70 °, the height (L) of the wall portion is about 10 times or more. An ascending flow of height will be easily formed. If the optimum value is selected in consideration of the flow velocity of the flow path, the shape of the structure, and other conditions, the value can be further increased.

【0017】実際の海域などにおいては、図8ととも
に、複数の構造体(1)(2)(3)等そのものを、あ
る距離を置いて直列に設け、上昇流が降下してきたとこ
ろで再度上昇流を形成するようにしてもよい。こうする
ことにより、上昇高さの増大はもとより、より広い範囲
での上昇流形成が可能となり、深層水利用による人工漁
場の形成も有利となる。もちろん、広範囲の上昇流形成
のために並列に設けてもよい。
In an actual sea area, as shown in FIG. 8, a plurality of structures (1), (2), (3), etc. themselves are provided in series at a certain distance, and when the ascending current descends, the ascending current again. May be formed. By doing this, not only the rising height can be increased, but also an upward flow can be formed in a wider range, and it is also advantageous to form an artificial fishing ground by utilizing deep water. Of course, they may be provided in parallel to form a wide range of upward flow.

【0018】直列に配置する場合には、距離をおおむね
壁体構造体の高さ(L)の5〜10倍とすればよく、流
速を考慮して適宜に3倍、あるいは15倍程度としても
よい。なお、この発明において設置する構造体について
は、その頂部をエッジ形状とすることが好ましく、実際
には、石炭灰とコンクリートによって造築してもよい
し、これに鉄骨構造物を組合わせるなどの適宜な構造と
することができる。
In the case of arranging in series, the distance may be approximately 5 to 10 times the height (L) of the wall structure, and may be appropriately set to 3 or 15 times in consideration of the flow velocity. Good. Regarding the structure to be installed in the present invention, it is preferable that the top has an edge shape, and in fact, it may be constructed by coal ash and concrete, or by combining it with a steel frame structure, etc. It can have an appropriate structure.

【0019】[0019]

【発明の効果】開き角度(α)が180°のこれまでに
提案されているつい立形構造物ではせいぜい3倍程度ま
でしか上昇せず、しかもその上昇流は、距離に対して極
めて不安定であるが、この発明の方法による上昇流は、
10倍以上の高い上昇流を安定して形成する。しかも流
れの変化や合流に対しても対応容易である。
EFFECTS OF THE INVENTION In the vertical structure proposed so far with the opening angle (α) of 180 °, it rises up to about 3 times at most, and the ascending flow is extremely unstable with respect to the distance. However, the upflow by the method of the present invention is
Stable formation of 10 times or more high upflow. Moreover, it is easy to deal with changes in the flow and merging.

【0020】このため、この発明の方法によって、海域
における湧昇形成は現実的なものとなり、人工漁場形成
も可能となる。また河川においては、水底土砂の移送に
よる洗掘の修復法としてもこの発明の方法は有用であ
る。この発明を使用することによって堆積のさかんな部
分の土砂を巻き上がらせ、水流によって浸食のさかんな
場所にまで運ばせ沈降させることによって護岸の浸食や
構造物周辺の洗掘を防止することができる。さらに、海
水の浸入してくる干潮河川底に設置し、海水と河川水と
の混合を促し、河川への海水の浸入を防止することにも
効果を発揮する。
Therefore, according to the method of the present invention, the upwelling in the sea area becomes realistic, and the artificial fishing ground can be formed. Further, in rivers, the method of the present invention is also useful as a method for repairing scour by transferring water bottom sediment. By using this invention, it is possible to prevent the erosion of the revetment and the scouring around the structure by rolling up the sediment in the sedimentary part, transporting it to the place where the erosion is prone by the water flow and allowing it to settle. . Furthermore, it is installed at the bottom of a low tide river where seawater invades to promote the mixing of seawater and river water, and it is also effective in preventing seawater from entering the river.

【0021】もちろん、この発明の方法は、以上の例示
によって何ら限定されるものではない。実際の海域等へ
の適用にあたって様々な態様が可能であることはいうま
でもない。また、流路底部への設置だけでなく、フロー
ト構造体によって、この発明を実施することも可能であ
る。
Of course, the method of the present invention is not limited to the above examples. It goes without saying that various modes are possible when applied to actual sea areas. Further, the present invention can be implemented not only by installing it on the bottom of the flow channel but also by using a float structure.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の方法を模式的に示した斜視図であ
る。
FIG. 1 is a perspective view schematically showing the method of the present invention.

【図2】図1に対応する別の模式斜視図である。FIG. 2 is another schematic perspective view corresponding to FIG.

【図3】この発明の別の構造体の例を示した斜視図であ
る。
FIG. 3 is a perspective view showing an example of another structure of the present invention.

【図4】さらに別の構造体例を示した斜視図である。FIG. 4 is a perspective view showing still another structural example.

【図5】別の構造体例を示した斜視図である。FIG. 5 is a perspective view showing another structural example.

【図6】別の構造体例を示した斜視図である。FIG. 6 is a perspective view showing another structural example.

【図7】別の構造体配置例を示した平面図である。FIG. 7 is a plan view showing another arrangement example of structures.

【図8】また、別の配置例を示した斜視図である。FIG. 8 is a perspective view showing another arrangement example.

【符号の説明】[Explanation of symbols]

1、2、3 構造体 11、12 ガイド壁 13 つい立形壁体 1, 2, 3 structure 11, 12 guide wall 13 vertical wall

───────────────────────────────────────────────────── フロントページの続き (72)発明者 浅枝 隆 埼玉県三郷市早稲田5−5−26 ライオン ズマンション三郷第5 604 (72)発明者 其阿弥 喜嗣 東京都港区海岸三丁目8番15号 国総芝浦 ビル 国土総合建設株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Asada 5-5-26 Waseda, Misato City, Saitama Lions Mansion Misato No. 5 604 (72) Inventor Yoshitsugu Soami 3-8-15 Kaigan, Minato-ku, Tokyo Kokuso Shibaura Building Within Kokuso Comprehensive Construction Co., Ltd.

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 流路に少くとも三方向の壁部を有する一
体化構造体を配置して上昇流を形成することを特徴とす
る人工上昇流の形成方法。
1. A method for forming an artificial upflow, characterized in that an upflow is formed by arranging an integrated structure having walls in at least three directions in a flow path.
【請求項2】 平面Y字形構造体を配置する請求項1の
方法。
2. The method of claim 1, wherein the planar Y-shaped structure is arranged.
【請求項3】 複数の構造体を配置する請求項1または
2の方法。
3. The method according to claim 1, wherein a plurality of structures are arranged.
【請求項4】 流れガイド体を付設する請求項1、2ま
たは3の方法。
4. A method according to claim 1, 2 or 3 in which a flow guide is provided.
【請求項5】 海水流路に上昇流を形成する請求項1、
2、3または4記載の人工上昇流の形成方法。
5. The upward flow is formed in the seawater flow passage,
The method for forming an artificial upflow according to 2, 3, or 4.
【請求項6】 河川流路に上昇流を形成する請求項1、
2、3または4記載の人工上昇流の形成方法。
6. An upflow is formed in a river flow path,
The method for forming an artificial upflow according to 2, 3, or 4.
JP19043293A 1993-07-30 1993-07-30 Method of forming artificial upflow Expired - Fee Related JP3324664B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19043293A JP3324664B2 (en) 1993-07-30 1993-07-30 Method of forming artificial upflow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19043293A JP3324664B2 (en) 1993-07-30 1993-07-30 Method of forming artificial upflow

Publications (2)

Publication Number Publication Date
JPH0754322A true JPH0754322A (en) 1995-02-28
JP3324664B2 JP3324664B2 (en) 2002-09-17

Family

ID=16258040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19043293A Expired - Fee Related JP3324664B2 (en) 1993-07-30 1993-07-30 Method of forming artificial upflow

Country Status (1)

Country Link
JP (1) JP3324664B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100922158B1 (en) * 2009-07-20 2009-10-19 주식회사 동하 Flow overturning apparatus for water treatment channel
KR101030597B1 (en) * 2009-03-30 2011-04-21 관동대학교산학협력단 Vortex type artificial breeding reef for fish

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101030597B1 (en) * 2009-03-30 2011-04-21 관동대학교산학협력단 Vortex type artificial breeding reef for fish
KR100922158B1 (en) * 2009-07-20 2009-10-19 주식회사 동하 Flow overturning apparatus for water treatment channel
WO2011010836A3 (en) * 2009-07-20 2011-05-19 주식회사 동하 Vertical current-switching device for water-treatment channels

Also Published As

Publication number Publication date
JP3324664B2 (en) 2002-09-17

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