JP3185169B2 - Discharge structure - Google Patents
Discharge structureInfo
- Publication number
- JP3185169B2 JP3185169B2 JP27724394A JP27724394A JP3185169B2 JP 3185169 B2 JP3185169 B2 JP 3185169B2 JP 27724394 A JP27724394 A JP 27724394A JP 27724394 A JP27724394 A JP 27724394A JP 3185169 B2 JP3185169 B2 JP 3185169B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- area
- underwater gate
- gate
- underwater
- 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 - Fee Related
Links
Classifications
-
- 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
- Y02E10/20—Hydro energy
Landscapes
- Barrages (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、発電所や工場等からの
排水を海洋や湖沼や河川等の広範囲水域へ放流する放流
施設、特に、排水中の泡を広範囲水域へ流さないように
した放流構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge facility for discharging wastewater from a power plant or a factory to a wide area such as oceans, lakes and rivers, and more particularly, to preventing bubbles in the wastewater from flowing to a wide area. Regarding the discharge structure.
【０００２】[0002]
【従来の技術】従来、発電所等からの大量の排水を、図
８に示すように地下に設けられた放水路１を通じて先端
の放水口２から海洋３に放流する場合、放水路１が急勾
配になっているため、排水が放水路１中で射流ａとなっ
て放水路１の途中で跳水現象ｂを起こし、空気を巻き込
んで大量の泡ｃが発生し、海洋の景観を損ねるとか、周
辺に種々の害を及ぼす問題があった。2. Description of the Related Art Conventionally, when a large amount of waste water from a power plant or the like is discharged from a water discharge port 2 at the tip to a marine ocean 3 through a water discharge channel 1 provided underground as shown in FIG. Due to the slope, the drainage becomes a jet a in the discharge channel 1, causing a water jump phenomenon b in the middle of the discharge channel 1, causing a large amount of bubbles c to be entrained by air, and impairing the ocean landscape, There were various harmful problems in the surrounding area.
【０００３】その一つの対策方法として、図９に示すよ
うに、放水口２の周囲に、海洋３の底部に達するカーテ
ンウォールのもぐり堰４を設置して、放水路１内の水位
を上昇させることにより、跳水の発生を抑制しながら、
もぐり堰４の下部に設けられた開口部５から排水を海洋
３へ流出させることが考えられる。しかし、これによる
と、放水路１内の水位は海洋３の水位（潮位）Ｗ．Ｌに
連動するため、放水路１内の水位が潮位により変動し、
また満潮時には放水路１内の水位が必要以上に高くな
り、排水用ポンプ等に支障を来す恐れがある。そこで、
もぐり堰４の開口部５の開口面積を潮位に応じて調整す
ることが考えられるが、潮位は時々刻々と変化するた
め、操作が煩雑となり、実用的でない。As one of the countermeasures, as shown in FIG. 9, a ditch weir 4 of a curtain wall reaching the bottom of the ocean 3 is installed around the water outlet 2 to raise the water level in the water discharge channel 1. By controlling the occurrence of jumping water,
It is conceivable that the drainage is discharged to the ocean 3 from the opening 5 provided at the lower part of the moat weir 4. However, according to this, the water level in the spillway 1 is the water level (tide level) of the ocean 3. L, the water level in the spillway 1 fluctuates according to the tide level,
In addition, at the time of high tide, the water level in the water discharge channel 1 becomes unnecessarily high, which may hinder the drainage pump and the like. Therefore,
Although it is conceivable to adjust the opening area of the opening 5 of the underground weir 4 according to the tide level, the tide level changes every moment, so that the operation becomes complicated and not practical.
【０００４】また、泡の海洋等への流出を防止できる放
流構造の一つとして、特公平４−３９５２１号公報に記
載のものがある。この構造は、上流排水路の先端に、放
水口が海洋に没する下流放水槽を設けてこれらの間に段
差を設け、この段差部に複数の越流堰を多重段平行に設
置して相互間に落流隙路を形成し、これら越流堰の越流
上縁を漸次昇り階段状に配列するとともに、各下縁を下
流放水槽の水面下に没しさせ、また段差部の少し上流側
には、下端が上流排水路の水面下に没するカーテンウォ
ールを垂設したものである。Further, as one of the discharge structures capable of preventing the outflow of bubbles into the ocean or the like, there is one described in Japanese Patent Publication No. 4-39521. In this structure, at the end of the upstream drainage channel, a downstream water discharge tank whose outlet is submerged in the ocean is provided with a step between them, and multiple overflow weirs are installed in this step at multiple stages in parallel to each other. The overflow gaps are formed between the overflow weirs, and the upper edges of the overflow weirs are gradually raised and arranged in a step-like manner, and each lower edge is submerged below the surface of the downstream discharge tank, and slightly upstream of the step. On the side, a curtain wall whose lower end sinks below the water surface of the upstream drainage channel is provided vertically.
【０００５】しかし、これによると次のような問題点が
ある。 上流排水路は、海洋の最高水位より十分に高くしな
ければならないので、地下施設とすることは難しく、全
体的に地上施設となるため、その設置スペースを地上に
確保しなければならず、立地条件による制約が多い。 発電所から海洋へ至る放水路は、一般に地下に設け
られていることが多いが、上記のように上流排水路が地
上施設となるため、既設の放水路に対して下流放水槽等
を後付けして作るというようなことはできない。 上流排水路に設けたカーテンウォールで流勢を減ず
るとしても、跳水現象そのものを抑制する構造ではない
ので、跳水による泡の大量発生は避け難く、その発生し
た泡が海洋へ流出しないようにするには、上記のように
下流放水槽を設け、その中に複数の越流堰を間隔をおい
て多重に設け、しかもそれらの越流上縁を漸次昇り階段
状にする、という複雑な構造を採らざるを得ない。従っ
て、設置費用が高くつく。However, this has the following problems. Since the upstream drainage channel must be sufficiently higher than the maximum water level of the ocean, it is difficult to use it as an underground facility.Because it is a ground facility as a whole, its installation space must be secured on the ground. There are many restrictions due to conditions. The water discharge channel from the power plant to the ocean is generally provided underground, but the upstream drainage channel is a ground facility as described above. You can't do that. Even if the current is reduced by the curtain wall provided in the upstream drainage channel, it is not a structure that suppresses the jumping phenomenon itself, so it is inevitable that a large amount of bubbles will be generated by jumping water, and the generated bubbles will not flow out to the ocean. Has a complicated structure in which a downstream water discharge tank is provided as described above, a plurality of overflow weirs are provided in the downstream discharge tank at intervals, and the upper edge of the overflow gradually rises and is made stepwise. I have no choice. Therefore, the installation cost is high.
【０００６】[0006]
【発明が解決しようとする課題】本発明の目的は、放水
路中での跳水現象そのものの発生を抑制して跳水による
泡の発生を防止することにより、泡の海洋等への流出防
止部分の構造を簡素にでき、また地下に設けられた放水
路を通じて放流する既設の施設に対しても、部分的な後
付けで簡単かつ経済的に対応できる放流構造を提供する
ことにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a part for preventing a bubble from flowing out to the ocean or the like by suppressing the occurrence of a water jump phenomenon itself in a water discharge channel and preventing the generation of bubbles due to water jump. It is an object of the present invention to provide a discharge structure that can be simplified in structure and that can be easily and economically adapted to an existing facility that discharges water through a water discharge channel provided underground.
【０００７】[0007]
【課題を解決するための手段】本発明では、発電所や工
場等からの排水を、地下に勾配をもって設けられた放水
路１０を通じて先端の放水口１３から海や湖や河川等の
広範囲水域１１に放流する放流施設において、その放水
口１３の周囲を次のような構造にする。すなわち、広範
囲水域１１に立てられた支柱１５と、広範囲水域１１の
水位変化に追従してこの支柱１５に沿って上下動する水
中ゲート１６とによって、放水口１３の周囲に一時貯水
領域１７を区画することにより、水中ゲート１６が広範
囲水域１１の底部１４に着底したときは一時貯水領域１
７の水が水中ゲート１６の上端１６ａを越流し、水中ゲ
ート１６が浮上して広範囲水域１１の底部１４から離れ
たときは、一時貯水領域１７の水が広範囲水域１１の底
部１４と水中ゲート１６の下端１６ｂとの間を流れ得る
ようにする。また、この水中ゲート１６が広範囲水域１
１の底部１４に着底したときにも、一時貯水領域１７の
水位が放水路１０中において跳水を生じさせない高さを
維持するように水中ゲート１６の高さを設定する。According to the present invention, wastewater from a power plant or a factory is drained from a water outlet 13 at an end through a water discharge channel 10 provided with a gradient underground to a wide water area 11 such as a sea, a lake or a river. In the discharge facility that discharges water to the water, the periphery of the water discharge port 13 is structured as follows. That is, the temporary water storage area 17 is defined around the water discharge port 13 by the strut 15 standing in the wide water area 11 and the underwater gate 16 moving up and down along the strut 15 following the water level change of the wide water area 11. As a result, when the underwater gate 16 has landed on the bottom 14 of the wide water area 11, the temporary water storage area 1
7 flows over the upper end 16a of the underwater gate 16, and when the underwater gate 16 rises and separates from the bottom 14 of the wide water area 11, the water in the temporary storage area 17 is removed from the bottom 14 of the wide water area 11 and the underwater gate 16 Between the lower end 16b and the lower end 16b. In addition, this underwater gate 16 is used for a wide area 1
The height of the underwater gate 16 is set so that the water level of the temporary water storage area 17 is maintained at a level that does not cause water jumping even in the water discharge channel 10 even when the bottom of the underwater gate 1 has landed.
【０００８】水中ゲート１６には、その浮力調整のため
浮揚体１８を設けることができる。また、水中ゲート１
６は、一時貯水領域１７と広範囲水域１１との水位の差
により水平方向の水圧を受けるが、その水圧を受けても
支柱１５に対しスムーズに上下動できるように、支柱１
５にレール２０を設け、またこのレール２０に沿って水
中ゲート１６の上下動を案内する案内ローラ２１を水中
ゲート１６側に装着する。The underwater gate 16 can be provided with a floating body 18 for adjusting its buoyancy. In addition, underwater gate 1
The column 6 receives horizontal water pressure due to the difference in water level between the temporary storage area 17 and the wide-area water area 11.
5 is provided with a rail 20, and a guide roller 21 for guiding the underwater gate 16 up and down along the rail 20 is mounted on the underwater gate 16 side.
【０００９】[0009]
【作用】放流する広範囲水域１１が海域である場合、水
中ゲート１６は潮位の変化により上下動する。すなわ
ち、水中ゲート１６は、図１に示すように干潮時（潮位
Ｌ．Ｗ．Ｌ）には海底１４に着底する。このとき、放水
口１３から放流された排水は、一時貯水領域１７に一時
的に貯水されてから、着底している水中ゲート１６の上
端１６ａを越流して海域１１に流れるので、一時貯水領
域１７の水位は、海面水位Ｌ．Ｗ．Ｌより高く水中ゲー
ト１６の高さ（上下長さ）と同じになる。また、放水路
１０内は、一時貯水領域１７の水位と同じ高さまで排水
が充満した状態で放水が行われるので、跳水の発生が抑
制される。すなわち、一時貯水領域１７の水位は、着底
している水中ゲート１６と同じ高さになるが、それでも
放水路１０内での跳水の発生を抑制することができる。When the wide water area 11 to be discharged is a sea area, the underwater gate 16 moves up and down due to a change in tide level. That is, the underwater gate 16 lands on the sea floor 14 at low tide (tide level LWL) as shown in FIG. At this time, the wastewater discharged from the water discharge port 13 is temporarily stored in the temporary water storage area 17 and then flows over the upper end 16a of the submerged underwater gate 16 to the sea area 11; 17 is the sea level L.L. W. It is higher than L and equal to the height (vertical length) of the underwater gate 16. In addition, since water is discharged in the water discharge channel 10 in a state where the drainage is filled to the same height as the water level of the temporary water storage area 17, the occurrence of water jump is suppressed. That is, although the water level of the temporary water storage area 17 becomes the same height as the underwater gate 16 that has landed, the occurrence of water jump in the water discharge channel 10 can be suppressed.
【００１０】次に、海面が図６に示すように中間潮位
Ｍ．Ｗ．Ｌになると、水中ゲート１６は少し浮上して下
端が海底１４から離れる。水中ゲート１６の上端１６ａ
が上昇することにより、一時貯水領域１７の水位も上昇
するが、この一時貯水領域１７に一時的に貯水された排
水は、大部分が水中ゲート１６の上端１６ａから越流し
て海域１１へ流れる。放水路１０内も、一時貯水領域１
７の水位と同じ高さまで排水が充満する。[0010] Next, as shown in FIG. W. At L, the underwater gate 16 slightly floats and its lower end is separated from the seabed 14. Upper end 16a of underwater gate 16
As the water level rises, the water level in the temporary water storage area 17 also rises, but most of the wastewater temporarily stored in the temporary water storage area 17 flows from the upper end 16 a of the underwater gate 16 to the sea area 11. In the water discharge channel 10, the temporary storage area 1
Drainage fills to the same height as the water level of 7.
【００１１】図７に示すように満潮時（潮位Ｈ．Ｗ．
Ｌ）には、水中ゲート１６が更に浮上してその下端１６
ｂが海底１４から一層離れ、水中ゲート１６の上端１６
ａが満潮水位Ｈ．Ｗ．Ｌ近くまで上昇することにより、
一時貯水領域１７の水位も同様に上昇する。このときに
は、放流された排水の大部分は水中ゲート１６の下端１
６ｂと海底１４との間を通り抜けて海域１１へ流れ、一
部が水中ゲート１６の上端１６ａを越流する。従って、
放水路１０内における跳水の発生を、満潮時は勿論のこ
と干潮時でも抑制できるため、跳水による泡の発生を潮
位の変化に関係なく防止できる。As shown in FIG. 7, at high tide (tide level HW.
In L), the underwater gate 16 further rises and its lower end 16
b is further away from the seabed 14 and the upper end 16 of the underwater gate 16
a is the high tide water level H. W. By rising to near L,
The water level in the temporary water storage area 17 also rises. At this time, most of the discharged wastewater is discharged from the lower end 1 of the underwater gate 16.
The water flows through the space between the base 6b and the sea floor 14 to the sea area 11, and a part of the water flows over the upper end 16a of the underwater gate 16. Therefore,
Since the occurrence of water jump in the water discharge channel 10 can be suppressed not only at the time of high tide but also at the time of low tide, the generation of bubbles due to the water jump can be prevented regardless of a change in tide level.
【００１２】[0012]
【実施例】次に、本発明の実施例について説明する。Next, an embodiment of the present invention will be described.
【００１３】図１及び図２に本発明の基本構成を示す。
放水路１０は地下に勾配をもって設けられ、その先端は
海域（海洋）１１の岸壁１２に開口する放水口１３とな
っている。なお、図２では隣接した３本の平行な放水路
１０を示しているが、その本数に限定はない。FIGS. 1 and 2 show the basic structure of the present invention.
The water discharge channel 10 is provided with a gradient underground, and the tip thereof is a water discharge port 13 opening to a quay wall 12 of a sea area (ocean) 11. FIG. 2 shows three adjacent parallel water discharge channels 10, but the number is not limited.
【００１４】放水口１３の周囲には、海底１４に垂直に
立てた複数本の支柱１５と複数の水中ゲート１６とによ
り一時貯水領域１７が区画されている。図２、図３及び
図４に支柱１５と水中ゲート１６との関係を示す。水中
ゲート１６は、一時貯水領域１７と海域１１との間を仕
切るもので、その周辺の流体とほぼ同じ比重になってい
るが、両側に設けた縦長の浮揚体１８により適度の浮力
を与えられている。このため、各水中ゲート１６は、海
域１１の潮位の変化に追従して両側の支柱１５に沿って
上下動できるようになっている。その上下動を案内する
ため、各水中ゲート１６の両側の浮揚体１８には縦長の
凸部１９が設けられ、両側の支柱１５には、この凸部１
９を上下摺動自在に受け入れる凹溝（レール）２０が垂
直に設けられている。A temporary water storage area 17 is defined around the water outlet 13 by a plurality of columns 15 and a plurality of underwater gates 16 erected perpendicularly to the sea floor 14. 2, 3 and 4 show the relationship between the support 15 and the underwater gate 16. FIG. The underwater gate 16 partitions between the temporary water storage area 17 and the sea area 11 and has substantially the same specific gravity as the surrounding fluid, but is provided with appropriate buoyancy by the vertically long floating bodies 18 provided on both sides. ing. For this reason, each underwater gate 16 can move up and down along the struts 15 on both sides following changes in the tide level in the sea area 11. In order to guide the vertical movement, the floating body 18 on each side of each underwater gate 16 is provided with a vertically long convex portion 19, and the column 15 on each side has this convex portion 1.
A concave groove (rail) 20 for vertically receiving the groove 9 is provided vertically.
【００１５】また、水中ゲート１６は、一時貯水領域１
７と海域１１との水位の差により海域１１へ向かって水
平方向の水圧を受けるので、その水圧を受けても支柱１
５に対しスムーズに上下動できるように、図４に示すよ
うに凸部１９に案内ローラ２１が装着されている。The underwater gate 16 is provided in the temporary storage area 1.
7 receives water pressure in the horizontal direction toward the sea area 11 due to the difference in water level between the sea area 11 and the sea area 11.
A guide roller 21 is mounted on the projection 19 as shown in FIG.
【００１６】各水中ゲート１６の上端１６ａは、一時貯
水領域１７からの越流が泡立つことなく滑らかに海域１
１へ流れるように、丸みをもって傾斜している。また、
一時貯水領域１７の水位は水中ゲート１６の上端１６ａ
の高さに従って上下するが、各水中ゲート１６の実質高
さ（上下長さ）は、その下端１６ｂが図１に示すように
海底１４に着底したときにも、一時貯水領域１７の水位
が放水路１０中での跳水の発生を抑制できるような高さ
を維持できるように設定されている。The upper end 16a of each underwater gate 16 smoothly fills the sea area 1 without overflowing from the temporary storage area 17.
It is rounded and inclined so that it flows to 1. Also,
The water level of the temporary storage area 17 is the upper end 16a of the underwater gate 16.
The height (vertical length) of each underwater gate 16 is such that the water level of the temporary storage area 17 is maintained even when the lower end 16b of the underwater gate 16 has landed on the seabed 14 as shown in FIG. The height is set so that the height of the water jump in the water discharge channel 10 can be suppressed.
【００１７】従って、図１に示すように干潮（潮位Ｌ．
Ｗ．Ｌ）により水中ゲート１６が海底１４に着底したと
きも、また図６に示すように中間潮位Ｍ．Ｗ．Ｌとなっ
て水中ゲート１６が浮揚し、その下端１６ｂが海底１４
から少し離れたときも、更に図７に示すように満潮（潮
位Ｈ．Ｗ．Ｌ）により水中ゲート１６が一層浮揚したと
きにも、一時貯水領域１７の水位は、常に放水路１０中
での跳水の発生を抑制できる最低の高さ以上となるた
め、跳水による泡の発生を潮位変化に関係なく防止でき
る。Therefore, as shown in FIG.
W. L), when the underwater gate 16 has landed on the seabed 14, as shown in FIG. W. L, the underwater gate 16 floats, and its lower end 16b is
7, the water level of the temporary storage area 17 is always kept in the discharge channel 10 even when the underwater gate 16 further floats due to high tide (tide level HWL) as shown in FIG. Since the height is equal to or higher than the minimum height at which the generation of water jump can be suppressed, the generation of bubbles due to water jump can be prevented irrespective of the tide level change.
【００１８】以上、海洋（海域）へ放流する場合の実施
例について説明したが、本発明は、海洋に限らず湖沼や
河川等に放流する場合にも同様に適用できる。Although the embodiment in which the water is discharged to the ocean (sea area) has been described above, the present invention is similarly applicable to the case where the water is discharged not only to the ocean but also to lakes, rivers, and the like.
【００１９】[0019]
【発明の効果】以上述べたとおり本発明によれば、放水
路中での跳水の発生を広範囲水域の水位変化に関係なく
抑制できるため、跳水による泡の発生そのものを防止で
きる。また、支柱とこれに沿って上下動する水中ゲート
による簡素な構造により、泡の海洋等への流出を防止で
きるとともに、既設の放流施設に対しても部分的な後付
けで簡単かつ経済的に対応できる。As described above, according to the present invention, the occurrence of water jump in the water discharge channel can be suppressed irrespective of a change in the water level in a wide range of water area, so that the generation of bubbles due to the water jump can be prevented. In addition, the simple structure of the pillars and the underwater gate that moves up and down along the pillars can prevent foam from flowing out to the ocean, etc., and can easily and economically respond to existing discharge facilities by partial retrofitting it can.
【００２０】水中ゲートに浮揚体を設けることにより、
その浮力を適度に調整できる。また、支柱にレールを設
け、このレールに沿って水中ゲートの上下動を案内する
案内ローラを水中ゲート側に装着すれば、水中ゲートが
一時貯水領域と広範囲水域との水位の差により水圧を受
けても、水中ゲートを支柱に対しスムーズに上下動させ
ることができる。By providing a floating body at the underwater gate,
The buoyancy can be adjusted appropriately. Also, if a rail is provided on the column and a guide roller that guides the vertical movement of the underwater gate along the rail is installed on the underwater gate side, the underwater gate receives water pressure due to the difference in water level between the temporary storage area and the wide area water area. However, the underwater gate can be smoothly moved up and down with respect to the support.
【図１】本発明による放流構造の基本構成を示す簡略断
面図で、海域の干潮により水中ゲートが海底に着底して
いる状態である。FIG. 1 is a simplified cross-sectional view showing a basic configuration of a discharge structure according to the present invention, in which an underwater gate has landed on the seabed due to low tide in a sea area.
【図２】同上の平面図である。FIG. 2 is a plan view of the same.
【図３】支柱と水中ゲートとの関係を示す平面図であ
る。FIG. 3 is a plan view showing a relationship between a column and an underwater gate.
【図４】同上の正面図である。FIG. 4 is a front view of the same.
【図５】同上の一部拡大平面図である。FIG. 5 is a partially enlarged plan view of the same.
【図６】海域が中間潮位となって水中ゲートが少し浮上
した状態を示す簡略断面図である。FIG. 6 is a simplified cross-sectional view showing a state in which the sea area is at an intermediate tide level and the underwater gate slightly floats.
【図７】満潮により水中ゲートが更に浮上した状態を示
す簡略断面図である。FIG. 7 is a simplified cross-sectional view showing a state where the underwater gate further floats due to high tide.
【図８】従来の放流施設を示す簡略断面図である。FIG. 8 is a simplified sectional view showing a conventional discharge facility.
【図９】開口部を有するもぐり堰を放水口の周囲に設置
した参考例を示す簡略断面図である。FIG. 9 is a simplified cross-sectional view showing a reference example in which a moat weir having an opening is installed around a water outlet.
１０ 放水路 １１ 海洋（海域） １３ 放水口 １４ 海底 １５ 支柱 １６ 水中ゲート １６ａ 水中ゲートの上端 １６ｂ 水中ゲートの下端 １７ 一時貯水領域 １８ 浮揚体 １９ 凸部 ２０ 凹溝（レール） ２１ 案内ローラ REFERENCE SIGNS LIST 10 water discharge channel 11 ocean (sea area) 13 water discharge port 14 sea bottom 15 column 16 underwater gate 16 a upper end of underwater gate 16 b lower end of underwater gate 17 temporary water storage area 18 levitating body 19 convex part 20 concave groove (rail) 21 guide roller
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E02B 8/04 E02B 9/06 G21D 1/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) E02B 8/04 E02B 9/06 G21D 1/00
Claims (3)
をもって設けられた放水路を通じて先端の放水口から海
や湖や河川等の広範囲水域へ放流する放流施設におい
て、 前記広範囲水域に立てられた支柱と、広範囲水域の水位
変化に追従してこの支柱に沿って上下動する水中ゲート
とによって、前記放水口の周囲に一時貯水領域を区画
し、水中ゲートが広範囲水域の底部に着底したときは一
時貯水領域の水が水中ゲートの上端を越流し、水中ゲー
トが浮上して広範囲水域の底部から離れたときは、一時
貯水領域の水が広範囲水域の底部と水中ゲートの下端と
の間を流れ得るようにしたこと、 この水中ゲートが広範囲水域の底部に着底したときに
も、一時貯水領域の水位が前記放水路中において跳水を
生じさせない高さを維持するように水中ゲートの高さを
設定したこと、を特徴とする放流構造。Claims: 1. A discharge facility for discharging wastewater from a power plant or a factory from a water outlet at a tip end to a wide-area water area such as a sea, a lake, or a river through a water discharge channel provided with a gradient underground. An erect post and a submersible gate that moves up and down along the post following a change in the water level of the wide water area partition a temporary storage area around the outlet, and the underwater gate is attached to the bottom of the wide water area. When the bottom is reached, the water in the temporary storage area overflows the upper end of the underwater gate, and when the underwater gate rises and moves away from the bottom of the wide area, the water in the temporary storage area flows to the bottom of the wide area and the bottom of the underwater gate. Even when this underwater gate has landed on the bottom of a wide area of water, the water level of the temporary storage area is maintained so that the water level in the discharge channel does not cause water jump. Discharge structures that set the height of over bets, the features.
けたことを特徴とする請求項１に記載の放流構造。2. The discharge structure according to claim 1, wherein a floating body is provided to give buoyancy to the underwater gate.
って水中ゲートの上下動を案内する案内ローラを水中ゲ
ート側に装着したことを特徴とする請求項１又は２に記
載の放流構造。3. The discharge structure according to claim 1, wherein a rail is provided on the column, and a guide roller for guiding the vertical movement of the underwater gate is mounted on the underwater gate along the rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27724394A JP3185169B2 (en) | 1994-10-18 | 1994-10-18 | Discharge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27724394A JP3185169B2 (en) | 1994-10-18 | 1994-10-18 | Discharge structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08113932A JPH08113932A (en) | 1996-05-07 |
| JP3185169B2 true JP3185169B2 (en) | 2001-07-09 |
Family
ID=17580819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27724394A Expired - Fee Related JP3185169B2 (en) | 1994-10-18 | 1994-10-18 | Discharge structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3185169B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101069177B1 (en) * | 2009-08-05 | 2011-09-30 | 한국가스공사 | sea water discharge system for LNG vaporizer |
| CN108560511B (en) * | 2018-06-15 | 2023-09-08 | 中国电建集团成都勘测设计研究院有限公司 | Combined arrangement structure of cavity and water conduit |
| CN109356122A (en) * | 2018-11-21 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | Lock indoor ecological discharge tube structure |
-
1994
- 1994-10-18 JP JP27724394A patent/JP3185169B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08113932A (en) | 1996-05-07 |
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