JP3425663B2 - Turbine and hydraulic power plant with weir plate - Google Patents
Turbine and hydraulic power plant with weir plateInfo
- Publication number
- JP3425663B2 JP3425663B2 JP18553197A JP18553197A JP3425663B2 JP 3425663 B2 JP3425663 B2 JP 3425663B2 JP 18553197 A JP18553197 A JP 18553197A JP 18553197 A JP18553197 A JP 18553197A JP 3425663 B2 JP3425663 B2 JP 3425663B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- turbine
- weir plate
- water outlet
- runner
- 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
- Hydraulic Turbines (AREA)
- Control Of Water Turbines (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水が流れる河川あ
るいは水路に簡易に設置できるフランシス水車、プロペ
ラ水車、カプラン水車あるいは斜流水車等の反動型水車
を設けた堰板を備えた水車及び水力発電装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic turbine and a hydraulic power plant having a weir plate provided with a reaction type hydraulic turbine such as a Francis turbine, a propeller turbine, a Kaplan turbine or a mixed flow turbine, which can be easily installed in a river or a waterway in which water flows. Regarding a power generator.
【０００２】[0002]
【従来の技術】地球上には、水の落差を利用した水車と
発電機とによる水力発電所が多数設置されている。水車
は落差と流量により出力を発生し、発電に利用される水
車は反動型と衝動型とに大別され、反動型水車は主に中
低落差に使用されている。通常、水力発電所で反動型水
車を利用する場合、ダム、送水路、水圧鉄管、水車発電
機室等の大がかりな土木建設工事が必要である。そのた
め、発生電力に対するｋＷ当りの単価が非常に高価とな
っている。2. Description of the Related Art On the earth, a large number of hydroelectric power stations using water wheels and generators that utilize the head of water are installed. Turbines generate output depending on head and flow rate, and turbines used for power generation are roughly classified into reaction type and impulse type, and reaction type turbines are mainly used for low and medium heads. Generally, when using a reaction type water turbine in a hydropower station, large-scale civil engineering construction work such as a dam, a waterway, a penstock, and a turbine generator room is required. Therefore, the unit price per kW for the generated power is very expensive.
【０００３】[0003]
【発明が解決しようとする課題】現在、この水力を利用
するためには、低落差で小水量の立地点でも同様に土木
建設工事の費用は多額となり、小出力の場合は、特に、
単位出力当りの建設単価が高価となり、その普及が進ま
ない状況である。At present, in order to utilize this hydraulic power, the cost of civil construction work is also large even at a location with a low head and a small amount of water, and especially in the case of a small output,
The construction unit price per unit output is expensive and it is difficult to spread it.
【０００４】現在残されている水力立地点は、低落差で
あり、また、小水量で発生出力の小さい水力所のみであ
る。そのため、このような水力所の開発費は、少額に抑
える必要がある。開発費を少額に抑えるためには、土木
建設工事費を最小限に抑えることが肝要であり、さら
に、水車発電機もコンパクトに集約した機種でなければ
ならない。しかしながら、低落差で小水量の立地点で水
車により出力を得ることは行なわれていないのが実情で
ある。Currently, the only remaining hydropower sites are those with a low head and a small amount of water and a small generation output. Therefore, the development cost of such a hydropower station should be kept low. In order to keep development costs low, it is essential to minimize civil engineering and construction costs, and the turbine generator must also be a compact model. However, the actual situation is that the output is not obtained by a water turbine at a location with a low head and a small amount of water.
【０００５】そこで、本発明は、低落差で小水量の立地
点において、コンパクトな水車により出力を得ることが
でき、土木建設工事費を最小限に抑えることができる反
動型水車を設けた堰板を備えた水車及び水力発電装置を
提供するものである。In view of the above, the present invention provides a weir plate provided with a reaction-type water turbine capable of obtaining an output with a compact water turbine at a location with a small head and a small amount of water and minimizing civil construction costs. The present invention provides a water turbine and a hydroelectric power generation device including the.
【０００６】[0006]
【課題を解決するための手段】本発明の投げ込み設置す
る水車は、水通路の上部にガイドベーンを備えた水取入
口が設けられるとともに、下部に水流出口が設けられた
Ｌ字型のドラフトチューブの前記水流出口の先端に合わ
せて開口が設けられた堰板が固定され、前記水流出口は
堰板の開口に向かって末広がりに形成され、ドラフトチ
ューブ内の上部に反動型水車を設け、ランナの周りには
流量調整環がランナと同軸にガイドベーン内を上下に移
動可能に設けられていることを特徴とする。DISCLOSURE OF THE INVENTION The throwing installation of the present invention
That hydraulic turbine, together with water taking with guide vanes in the upper water passage inlet is provided, it if <br/> was a tip of the water outlet of the water outlet at the bottom is L-shaped draft tube provided The weir plate provided with the opening is fixed, and the water outlet is
The draft is formed so that it spreads toward the opening of the barrier plate.
A reaction type water turbine is installed in the upper part of the tube, and around the runner
The flow adjustment ring moves up and down in the guide vane coaxially with the runner.
It is characterized in that it is movably provided .
【０００７】また、本発明の投げ込み設置する水力発電
装置は、水通路の上部にガイドベーンを備えた水取入口
が設けられるとともに、下部に水流出口が設けられたＬ
字型のドラフトチューブの前記水流出口の先端に合わせ
て開口が設けられた堰板が固定され、前記水流出口は堰
板の開口に向かって末広がりに形成され、ドラフトチュ
ーブ内の上部に反動型水車を設け、ランナの周りには流
量調整環がランナと同軸にガイドベーン内を上下に移動
可能に設けられ、反動型水車の回転を伝達する伝達装置
を介して発電機が設けられていることを特徴とする。Further, in the hydroelectric generator installed by throwing according to the present invention, the water inlet having the guide vanes is provided at the upper portion of the water passage, and the water outlet is provided at the lower portion.
Shaped weir plate with an opening at a front end of the water outlet of the draft tube to fit are fixed, the water outlet weir
Draft tubing is formed toward the opening of the board.
A reaction turbine is installed in the upper part of the tube, and the flow around the runner is
The volume adjustment ring moves up and down in the guide vane coaxially with the runner.
Capable provided, characterized in that the generator through a transmission device for transmitting the rotation of the recoil type hydraulic turbine is provided.
【０００８】本発明の水車は、水が流れる河川並びに水
路に投げ込めば、堰板により自動的に水が堰き止められ
て落差が生じ、Ｌ字型のドラフトチューブの水通路の水
取入口から水流出口へ向かって水が流れ、その落差と流
量によって定まる水車の出力が発生する。When the water turbine of the present invention is thrown into a river or a waterway in which water flows, the water is automatically stopped by the dam plate to cause a head drop, and the water is introduced from the water intake port of the water passage of the L-shaped draft tube. Water flows toward the water outlet, and the output of the turbine is determined by the head and flow rate.
【０００９】したがって、その水車に取付ける堰板の高
さにより発生出力は容易に調整出来る。発電機を付加す
れば水力発電装置となる。Therefore, the generated output can be easily adjusted by the height of the weir plate attached to the turbine. If a generator is added, it becomes a hydroelectric generator.
【００１０】[0010]
【発明の実施の形態】図１は本発明の堰板を備えた投込
式の反動型水車を利用した水力発電機の側面図、図２は
同平面図、図３同断面図、図４は同斜視図である。1 is a side view of a hydraulic power generator using a throw-in reaction type water turbine equipped with a weir plate of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view thereof, and FIG. FIG.
【００１１】水通路１が形成されたＬ字型のドラフトチ
ューブ２の下部の水流出口３の先端には堰板４が固定さ
れ、堰板４には、水流出口３に合わせて開口５が設けら
れている。堰板４には、木材、金属、コンクリート、合
成樹脂等を使用し、堰き止められた水量に耐える強度を
有するように設計する。水流出口３は堰板４に向かって
末広がりに形成されている。A dam plate 4 is fixed to the tip of the water outlet 3 at the bottom of the L-shaped draft tube 2 in which the water passage 1 is formed, and the weir plate 4 is provided with an opening 5 corresponding to the water outlet 3. Has been. The dam plate 4 is made of wood, metal, concrete, synthetic resin, or the like, and is designed to have strength to withstand the amount of water dammed. The water outlet 3 is formed so as to widen toward the barrier plate 4.
【００１２】ドラフトチューブ２内の上部には、反動型
水車６を設ける。図１に示す実施例は特公昭７−１８３
９９号公報で公知のプロペラ又はカプラン水車を適用し
た例で、ランナ７の周りには流量調整環８がランナ７と
同軸にガイドベーン９内を上下に移動可能に設けられて
いる。流量調整環８の上下動は、リンク機構の操作レバ
ー１０を動かすことにより行う。流量調整環８の移動に
より、ガイドベーン９との間に形成される流路の面積を
調整して流量を調整する。A reaction turbine 6 is provided in the upper portion of the draft tube 2. The embodiment shown in FIG.
This is an example in which a propeller or a Kaplan turbine known in Japanese Patent No. 99 is applied, and a flow rate adjusting ring 8 is provided around the runner 7 coaxially with the runner 7 so as to be movable up and down in a guide vane 9. The vertical movement of the flow rate adjusting ring 8 is performed by moving the operation lever 10 of the link mechanism. By moving the flow rate adjusting ring 8, the area of the flow passage formed between the guide vane 9 and the guide vane 9 is adjusted to adjust the flow rate.
【００１３】反動型水車６には、反動型水車６の回転を
伝達する伝達装置１１として増速装置を介して立軸一体
型の発電機１２が設けられ、増速装置は、ランナ７の軸
に固定された大径のプリー１３をＶベルト１４を介して
中間の小径のプーリ１５に伝達し、さらに、Ｖベルト１
６で発電機１２の回転軸に固定された小径プーリ１７に
伝達して増速する。もちろん、発電機１２は接水しない
ようにするため、収納ケース２０内に収納する。水力発
電装置には、吊り下げ用のフック１８を設ける。 次
に、本実施例の堰板を備えた反動型水車の使用方法につ
いて説明する。The reaction-type water turbine 6 is provided with a vertical shaft-integrated generator 12 as a transmission device 11 for transmitting the rotation of the reaction-type water turbine 6 via a speed-increasing device. The speed-increasing device is attached to the shaft of the runner 7. The fixed large-diameter pulley 13 is transmitted to the intermediate small-diameter pulley 15 via the V-belt 14, and the V-belt 1
At 6, the power is transmitted to the small-diameter pulley 17 fixed to the rotating shaft of the generator 12 to increase the speed. Of course, the generator 12 is stored in the storage case 20 so as not to come into contact with water. A hook 18 for hanging is provided in the hydroelectric power generator. Next, a method of using the reaction type water turbine equipped with the dam plate of this embodiment will be described.
【００１４】図４は本発明の水力発電装置を水路内に投
込式に設置した状態を示す斜視図である。FIG. 4 is a perspective view showing a state in which the hydroelectric power generator of the present invention is installed in a water channel in a throwing manner.
【００１５】水力発電装置のフック１８にワイヤーロー
プを掛け、発電機１２が上流側、ドラフトチューブ２先
端の堰板４が下流側となるように方向を定め、水路又は
河川の壁に設けた溝の中に堰板４を入れて堰板４が川底
に着底するまで吊降ろす。A wire rope is hung on the hook 18 of the hydroelectric generator, the generator 12 is oriented upstream and the dam plate 4 at the end of the draft tube 2 is oriented downstream, and a groove is provided in a waterway or river wall. Insert the weir plate 4 into the inside and hang it down until the weir plate 4 reaches the bottom of the river.
【００１６】堰板４が水路又は河川を閉鎖し、ガイドべ
ーン９が全閉状態になっているのでドラフトチューブ２
内に水が流れ込まず、水は堰き止められて、自動的にダ
ムが形成されて水位が上昇し、水は堰板４をオーバーフ
ローし、水力発電装置は水没する。Since the weir plate 4 closes a waterway or a river and the guide vanes 9 are completely closed, the draft tube 2
The water does not flow into the inside, the water is dammed, a dam is automatically formed and the water level rises, the water overflows the weir plate 4, and the hydroelectric generator is submerged.
【００１７】堰板４の周囲からの漏水が無いように設置
するため、堰板が短い場合は、堰板の両側に石等を投げ
込んで堰き止めることが好ましい。In order to prevent water from leaking from around the weir plate 4, it is preferable to throw stones or the like on both sides of the weir plate to stop the weir if the weir plate is short.
【００１８】このようにして水力発電装置が設置される
と、水車６を取り巻く水の水位とドラフトチューブ２先
端の水流出口３の水位との間に落差が生じる。そこで、
ガイドべーン９を開くと、水はガイドべーン９から流入
し、ランナ７を通過してドラフトチューブ２内にいた
り、ドラフトチューブ２内で流速を低下させながら先端
の水流出口３から流出する。この間にランナ７に水が作
用して水車が回転する。また、落差を一定に保つ必要が
あるため、流入水量と流出水量が同じになるようにガイ
ドべーン９により流量を調節する。もちろん、その立地
点の流量は前もって測定してあるから、その流量に適合
した水車を設計すれば良い。When the hydroelectric generator is installed in this way, a drop occurs between the water level surrounding the water turbine 6 and the water level at the water outlet 3 at the tip of the draft tube 2. Therefore,
When the guide vane 9 is opened, water flows in from the guide vane 9, passes through the runner 7 and stays in the draft tube 2, or flows out from the water outlet 3 at the tip while reducing the flow velocity in the draft tube 2. To do. During this time, water acts on the runner 7 to rotate the water wheel. Further, since it is necessary to keep the head constant, the flow rate is adjusted by the guide vanes 9 so that the inflow water amount and the outflow water amount are the same. Of course, the flow rate at that location has been measured in advance, so it is only necessary to design a water turbine suitable for that flow rate.
【００１９】ドラフトチューブ２の水流出口３から出た
水のレベルは、水流出口より上に常に一定に維持する必
要があるため、例えば、堰の外側に盛石１９を設ける。Since the level of the water discharged from the water outlet 3 of the draft tube 2 must be constantly maintained above the water outlet, for example, a stone 19 is provided outside the weir.
【００２０】こうして水力により水車が回転し、回転が
伝達装置１１により発電機１２に伝達し、発電機１２が
回ると電力が発生する。また、洪水や水路の補修等の現
場の状況の変化により水力発電装置を撤去する場合は、
フック１８にワイヤロープを掛けて水力発電装置を吊上
げて撤去すればよい。In this way, the hydraulic turbine rotates the hydraulic turbine, and the rotation is transmitted to the generator 12 by the transmission device 11. When the generator 12 rotates, electric power is generated. In addition, when removing the hydroelectric generator due to changes in the situation such as floods and repairs of waterways,
It suffices to hang a wire rope on the hook 18 and to lift and remove the hydroelectric generator.
【００２１】実施例では、流量調整機構として、特公昭
７−１８３９９号公報（特許第１９９５３１８号）記載
のものを使用しているが、従来型のガイドべーン開閉機
構を採用してもよい。In the embodiment, as the flow rate adjusting mechanism, the one described in Japanese Patent Publication No. 7-18399 (Patent No. 1995318) is used, but a conventional guide vane opening / closing mechanism may be adopted. .
【００２２】また、本発明の水力発電機を複数並べて堰
を形成して発電量を増やこともできる。It is also possible to increase the amount of power generation by arranging a plurality of hydroelectric generators of the present invention to form a weir.
【００２３】[0023]
【発明の効果】本発明は堰板を備えた水車及び水力発電
装置を水流がある河川又は水路に単に投げ込み設置する
ことにより、水車回転し、水力発電装置は回転して電力
を発生する。その際堰板の高さを調整することにより出
力を加減することができる。According to the present invention, a water turbine equipped with a weir plate and a hydroelectric generator are simply thrown and installed in a river or a waterway where a water flow exists, whereby the water turbine rotates and the hydroelectric generator rotates to generate electric power. At that time, the output can be adjusted by adjusting the height of the barrier plate.
【００２４】また、投げ込まれた装置自体のガイドべー
ン調整により水量を制御し、出力の加減ができる。した
がって、その水車に取付ける堰板の高さにより発生出力
は容易に調整出来る。また、大がかりな土木建設工事を
必要としない、投込式であるため、その撒去も簡単であ
る。Further, the amount of water can be controlled by adjusting the guide vanes of the thrown-in device itself to adjust the output. Therefore, the generated output can be easily adjusted depending on the height of the dam plate attached to the turbine. Also, since it is a throw-in type that does not require large-scale civil engineering construction work, it can be easily removed.
【００２５】水車発電機もコンパクトに集約した機種を
利用でき、流量の大小に関係なく低落差の水力所に簡易
に据付られ、最適な効率を維持した運転が可能である。As the turbine generator, a compactly integrated model can be used, which can be easily installed in a hydropower station with a low head regardless of the magnitude of the flow rate, and it is possible to operate while maintaining optimum efficiency.
【図１】本発明の堰板を備えた投込式の反動型水車を利
用した水力発電機の側面図である。FIG. 1 is a side view of a hydraulic power generator using a throw-in reaction type water turbine equipped with a weir plate of the present invention.
【図２】本発明の堰板を備えた投込式の反動型水車を利
用した水力発電機の平面図である。FIG. 2 is a plan view of a hydraulic power generator using a drop-in reaction type water turbine equipped with the barrier plate of the present invention.
【図３】本発明の堰板を備えた投込式の反動型水車を利
用した水力発電機の断面図である。FIG. 3 is a cross-sectional view of a hydraulic power generator using a drop-in reaction type water turbine equipped with the weir plate of the present invention.
【図４】本発明の水力発電装置を水路内に投込式に設置
した状態を示す斜視図である。FIG. 4 is a perspective view showing a state in which the hydroelectric power generation device of the present invention is installed in a water channel in a throwing manner.
１ 水通路 ２ ドラフトチューブ ３ 水流出口 ４ 堰板 ５ 開口 ６ 反動型水車 ７ ランナ ８ 流量調整環 ９ ガイドベーン １０ 操作レバー １１ 伝達装置 １２ 発電機 １３ プリー １４ Ｖベルト １５ プーリ １６ Ｖベルト １７ プーリ １８ フック １９ 盛石 ２０ 収納ケース 1 water passage 2 Draft tube 3 water outlet 4 weir boards 5 openings 6 Recoil water turbine 7 Lanna 8 Flow rate adjusting ring 9 guide vanes 10 Operation lever 11 Transmission device 12 generator 13 pleats 14 V belt 15 pulley 16 V belt 17 pulley 18 hooks 19 stone 20 storage cases
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F03B 1/00 - 15/22 ─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) F03B 1/00-15/22
Claims (2)
入口が設けられるとともに、下部に水流出口が設けられ
たＬ字型のドラフトチューブの前記水流出口の先端に合
わせて開口が設けられた堰板が固定され、前記水流出口
は堰板の開口に向かって末広がりに形成され、ドラフト
チューブ内の上部に反動型水車を設け、ランナの周りに
は流量調整環がランナと同軸にガイドベーン内を上下に
移動可能に設けられていることを特徴とする堰板を備え
た投げ込み設置する水車。1. A with water taking with guide vanes in the upper water passage inlet is provided, the tip in case <br/> Align the water outlet of the water outlet at the bottom is L-shaped draft tube provided The weir plate provided with an opening is fixed, and the water outlet
Is formed in a divergent shape toward the opening of the weir plate,
A reaction turbine is installed in the upper part of the tube and around the runner.
Is a flow adjustment ring that moves up and down in the guide vane coaxially with the runner.
A water turbine to be installed by throwing, which is provided with a weir plate, which is provided so as to be movable .
入口が設けられるとともに、下部に水流出口が設けられ
たＬ字型のドラフトチューブの前記水流出口の先端に合
わせて開口が設けられた堰板が固定され、前記水流出口
は堰板の開口に向かって末広がりに形成され、ドラフト
チューブ内の上部に反動型水車を設け、ランナの周りに
は流量調整環がランナと同軸にガイドベーン内を上下に
移動可能に設けられ、反動型水車の回転を伝達する伝達
装置を介して発電機が設けられていることを特徴とする
堰板を備えた投げ込み設置する水力発電装置。2. A together with the upper water intake with a guide vane into the inlet of the water passage is provided, if <br/> Align the tip of the water outlet of the water outlet at the bottom is L-shaped draft tube provided The weir plate provided with an opening is fixed, and the water outlet
Is formed in a divergent shape toward the opening of the weir plate,
A reaction turbine is installed in the upper part of the tube and around the runner.
Is a flow adjustment ring that moves up and down in the guide vane coaxially with the runner.
A hydropower generator for throwing installation, comprising a weir plate, which is movably provided with a generator via a transmission device for transmitting the rotation of a reaction type water turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18553197A JP3425663B2 (en) | 1997-07-10 | 1997-07-10 | Turbine and hydraulic power plant with weir plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18553197A JP3425663B2 (en) | 1997-07-10 | 1997-07-10 | Turbine and hydraulic power plant with weir plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1130179A JPH1130179A (en) | 1999-02-02 |
| JP3425663B2 true JP3425663B2 (en) | 2003-07-14 |
Family
ID=16172440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18553197A Expired - Fee Related JP3425663B2 (en) | 1997-07-10 | 1997-07-10 | Turbine and hydraulic power plant with weir plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3425663B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4148519B2 (en) * | 2004-05-07 | 2008-09-10 | 電源開発株式会社 | Hydroelectric power generation equipment to be installed at the head of agricultural waterways |
| JP5132558B2 (en) * | 2006-07-13 | 2013-01-30 | 中国電力株式会社 | Water utilization facilities and methods using waterways |
| JP2020051267A (en) * | 2018-09-25 | 2020-04-02 | Ntn株式会社 | Hydraulic power generation device |
-
1997
- 1997-07-10 JP JP18553197A patent/JP3425663B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1130179A (en) | 1999-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |