JPH082468Y2 - Siphon turbine - Google Patents
Siphon turbineInfo
- Publication number
- JPH082468Y2 JPH082468Y2 JP1987107657U JP10765787U JPH082468Y2 JP H082468 Y2 JPH082468 Y2 JP H082468Y2 JP 1987107657 U JP1987107657 U JP 1987107657U JP 10765787 U JP10765787 U JP 10765787U JP H082468 Y2 JPH082468 Y2 JP H082468Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- turbine
- reservoir
- pump
- dam
- 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 - Lifetime
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
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Jet Pumps And Other Pumps (AREA)
- Hydraulic Turbines (AREA)
Description
【考案の詳細な説明】 A.産業上の利用分野 本考案はサイホン式水車に関し、その総合的な効率を
向上せしめ得るよう工夫したものである。[Detailed Description of the Invention] A. Industrial Application Field The present invention relates to a siphon-type water turbine and is devised to improve its overall efficiency.
B.従来の技術 例えば貯水を目的としたダム等において、後で水力発
電設備を設ける場合には、ダムの堰堤に導水孔を設ける
ことにより取水手段を確保するのが一般的であるが、こ
のような導水孔を設けることを種々の理由（例えばコス
ト面）で採用したくない場合に好適な水車設備としてサ
イホン式水車が提案されている。B. Conventional technology For example, when installing a hydroelectric power generation facility later in a dam for the purpose of storing water, it is common to secure water intake means by providing a water guide hole in the dam dam. A siphon-type water turbine has been proposed as a suitable turbine equipment when it is not desired to employ such a water guide hole for various reasons (for example, in terms of cost).
このサイホン式水車は、ダムの貯水池とこの貯水池の
水面より下方に設置されている水車とを、一端が貯水池
の水中に開口し他端が水車に連結されている導水管によ
りダムの堰堤の上端面を越えて連通し、この導水管をサ
イホンとすることにより水車を運転するものである。This siphon turbine is a dam reservoir and a turbine installed below the water surface of the reservoir, which is located on the dam's dam by a water conduit that has one end open to the water of the reservoir and the other end connected to the turbine. The water turbine is operated by connecting the water pipes across the end face and using the water pipe as a siphon.
C.考案が解決しようとする問題点 従来技術に係るサイホン式水車は、その始動の際、導
水管内を真空にしてこの導水管内を水で充満している。
このため、例えば真空ポンプを用いた真空引き設備を設
ける必要があり、この真空引きを行なう設備がコスト高
なものとなるという問題があった。C. Problems to be Solved by the Invention In the siphon-type water turbine according to the related art, at the time of starting, the water pipe is evacuated and the water pipe is filled with water.
Therefore, for example, it is necessary to provide a vacuuming equipment using a vacuum pump, and there is a problem that the equipment for performing the vacuuming becomes expensive.
本考案は、上記従来技術の問題点に鑑み、設備が簡単
で総合的な効率を良好なものとすることができるサイホ
ン式水車を提供することを目的とする。The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a siphon-type water turbine that has a simple facility and can improve overall efficiency.
D.問題点を解決するための手段 上記目的を達成するための本考案の構成は、一端がダ
ムの貯水池の水中に開口するとともに、ダムの堰堤の上
端面を越えて他端が貯水池の下方に配設された水車に連
結されているサイホン管となり得る導水管を有するサイ
ホン式水車において、導水管の貯水池側の開口部に配設
されるとともに電動機により駆動されて貯水池の水を導
水管の頂部を越えて水車側に汲み上げるポンプとして機
能するとともに、サイホンとして機能する導水管を流れ
る水により駆動されて水車として機能し、前記電動機を
発電機として機能させるように構成したことを特徴とす
る。D. Means for Solving Problems The constitution of the present invention for achieving the above-mentioned object is that one end is opened in the water of the reservoir of the dam, and the other end is below the upper end surface of the dam dam and the other end is below the reservoir. In a siphon type water turbine having a water guide pipe that can be a siphon pipe connected to a water turbine arranged in, the water of the reservoir is installed in the opening of the water guide pipe on the reservoir side and is driven by an electric motor. It is characterized in that it functions as a pump that pumps to the turbine wheel side over the top portion, and is driven by water flowing through a water conduit that functions as a siphon to function as a turbine wheel so that the electric motor functions as a generator.
E.作用 上記構成の本考案によれば水車の始動時には電動機に
よりポンプを駆動して導水管を水で充満する。この結
果、導水管はサイホンとして機能し貯水池の水を水車に
供給しつづける。この状態ではポンプは水車として機能
し前記電動機を駆動する原動機となり得るので、電動機
は発電機として機能する。E. Action According to the present invention having the above configuration, the pump is driven by the electric motor to fill the water conduit with water when the turbine is started. As a result, the water pipe functions as a siphon and continues to supply water from the reservoir to the water turbine. In this state, the pump functions as a water turbine and can be a prime mover for driving the electric motor, so that the electric motor functions as a generator.
F.実施例 以下本考案の実施例を図面に基づき詳細に説明する。F. Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
第１図に示すように、導水管１は、一端がダムの貯水
池２の水中に開口するとともに、ダムの堰堤３の上端面
3aを越えて他端が水車４に連結されている。プロペラ水
車で好適に形成される水車４は貯水池２の下方に位置す
る架台3bに設置されるとともに、ガイドベーン（図示せ
ず）を調整することにより流入する水の流量を任意に選
択し得るようになっており、その出力軸には発電機（図
示せず）が連結されている。放水管５は水車４を回わし
た水を放水庭６へ案内するものである。ポンプ７は導水
管１の貯水池２側の開口部の内部に支持部材7aにより回
転可能に支持されており導水管１の軸心に沿って上方に
伸びる回転軸7bを介して誘導電動機８の回転軸8aに連結
してある。誘導電動機８は導水管１の頂部の外周面に固
定してある。かくてポンプ７は貯水池２の水を導水管１
の頂部を越えて水車４側に汲み上げるようになってい
る。即ち、ポンプ７は貯水池２の水面2aと導水管１の軸
線の頂点1aの高さH1より大きい水頭を発生できるものを
選択する。特に、貯水池２は貯水量によって水面2aが変
化し、これに伴ない高さH1も変化するので、ポンプ７は
高さH1の最大値を考慮して選択しなければならない。ま
た、ポンプ７の特性は、第２図に示すように吐出圧力Ｐ
を縦軸に流量Ｑを横軸に表わしたとき、実用的にH1＝P1
にとった場合の流量Q1は水車４の呑量より可成り小さい
値に選択し、水車４の最適落差は、第１図に高さH2（水
面2aと放水庭６の水面6aの間の距離）で示すように、全
落差H3（H1＋H2）より小さく選択する。As shown in FIG. 1, the water conduit 1 has one end opening into the water of the reservoir 2 of the dam and the upper end surface of the dam 3 of the dam.
The other end is connected to the water wheel 4 beyond 3a. The water turbine 4 which is preferably formed by a propeller water turbine is installed on a pedestal 3b located below the reservoir 2, and the flow rate of inflowing water can be arbitrarily selected by adjusting a guide vane (not shown). A generator (not shown) is connected to its output shaft. The water discharge pipe 5 guides the water that has rotated the water wheel 4 to the water discharge yard 6. The pump 7 is rotatably supported by a support member 7a inside the opening of the water conduit 1 on the reservoir 2 side, and the induction motor 8 rotates via a rotary shaft 7b extending upward along the axis of the water conduit 1. It is connected to the shaft 8a. The induction motor 8 is fixed to the outer peripheral surface of the top of the water conduit 1. Thus, the pump 7 transfers the water from the reservoir 2 to the water conduit 1
It is designed to pump up to the side of the water turbine 4 over the top of the water turbine. That is, the pump 7 is selected to be capable of generating a head greater than the height H 1 of the water surface 2a of the reservoir 2 and the apex 1a of the axis of the water conduit 1. In particular, since the water surface 2a of the reservoir 2 changes depending on the amount of stored water, and the height H 1 changes accordingly, the pump 7 must be selected in consideration of the maximum value of the height H 1 . Further, the characteristics of the pump 7 are as shown in FIG.
Is plotted on the vertical axis and the flow rate Q is plotted on the horizontal axis. Practically, H 1 = P 1
The flow rate Q 1 is set to a value that is considerably smaller than the volume of the turbine 4, and the optimum head of the turbine 4 is shown in Fig. 1 as the height H 2 (between the water surface 2a and the water surface 6a of the discharge garden 6). Distance), select a total head less than H 3 (H 1 + H 2 ).
更に、第３図に示すように、誘導電動機８と水車４
（第１図参照）に連結された発電機９とは電源10に対し
並列に接続してある。なお、同図中、11,12,13は開閉器
である。Further, as shown in FIG. 3, the induction motor 8 and the water turbine 4 are
The generator 9 connected (see FIG. 1) is connected in parallel to the power source 10. In the figure, reference numerals 11, 12, and 13 are switches.
かかる実施例においては、その始動にあたり、開閉器
11,13を閉成して誘導電動機８を駆動し、ポンプ７を駆
動して貯水池２の水を汲み上げる。このとき水車４のガ
イドベーンは全閉状態としておく。この結果、導水管１
内には徐々に水が貯留され終には充満される。この時点
でガイドベーンを開けば導水管１はサイホン管として機
能し貯水池２の水が連続的に水車４に供給される。水車
４が定常の運転状態に至ると導水管１を流れる流量は、
ポンプ７の吐出圧力が零となるときの流量Q2より大きく
なる。このためポンプ７は導水管１を流れる水により回
転させられる水車として機能するようになる。したがっ
て、誘導電動機８は発電機として機能する。即ち、総落
差H3のうちH1を誘導発電機（誘導電動機８）で、H2を発
電機９で消費するような発電が行なわれる。In such an embodiment, in starting the switch,
11, 11 and 13 are closed to drive the induction motor 8 and the pump 7 to pump the water in the reservoir 2. At this time, the guide vanes of the water turbine 4 are kept fully closed. As a result, water conduit 1
Water is gradually stored inside and finally filled. If the guide vanes are opened at this point, the water conduit 1 functions as a siphon tube, and the water in the reservoir 2 is continuously supplied to the water turbine 4. When the water turbine 4 reaches a steady operating state, the flow rate of water flowing through the water conduit 1 is
It becomes larger than the flow rate Q 2 when the discharge pressure of the pump 7 becomes zero. Therefore, the pump 7 functions as a water turbine that is rotated by the water flowing through the water conduit 1. Therefore, the induction motor 8 functions as a generator. That is, power is generated such that H 1 of the total head H 3 is consumed by the induction generator (induction motor 8) and H 2 is consumed by the generator 9.
このとき誘導電動機８を極数変換式の誘導電動機、若
しくはインバータ制御の可変速電動機とすることで次の
ように運転することができる。At this time, the induction motor 8 can be operated as follows by using a pole number conversion type induction motor or an inverter-controlled variable speed motor.
水車４を総落差H3を費やすものとして水面2aを常に
H1を発生するように運転し、ポンプ７及び水車４とも最
適の落差で運転するようにして水面2aの変化に関わらず
いずれも最高効率で運転する。As the water wheel 4 spends the total head H 3 , the water surface 2a is always
The pump 7 and the water turbine 4 are operated with the optimum head so that both H 1 are generated and the pump 7 and the water turbine 4 are operated with the highest efficiency regardless of the change in the water surface 2a.
水車４は常にH2の落差で運転するものとし、H1の変
化分を誘導発電機（誘導電動機８）が発電するよう構成
して水面2aの変化に関わらずポンプ７及び水車４とも効
率よく運転する。It is assumed that the water turbine 4 is always operated with the head of H 2 , and the change of H 1 is configured to be generated by the induction generator (induction motor 8) so that the pump 7 and the water wheel 4 can efficiently operate regardless of the change of the water surface 2a. drive.
水車４は常にH2＋α（H2の近辺）の落差で運転する
ものとし、ポンプ７はH1−αをベースに水面2aの変化に
よってポンプとしたり水車としたりして水車４に加わる
落差を常に一定に保つよう運転することにより主たる発
電をする水車４を水面2aの変化に関わらず高効率で運転
する。殊に、この方式ではポンプ７及び誘導電動機８の
容量を小さくすることが可能である。一般にH3に対し水
面2aの変化は20〜30％程度であり、の場合誘導電動機
８は発電機９の10〜15％以下の容量ですむ。It is assumed that the water turbine 4 is always driven with a head of H 2 + α (around H 2 ), and the pump 7 is a pump or a water wheel based on H 1 −α and acts as a pump or a water wheel to adjust the head difference. The water turbine 4 that mainly generates power by operating so as to always keep it constant is operated with high efficiency regardless of changes in the water surface 2a. In particular, with this method, it is possible to reduce the capacity of the pump 7 and the induction motor 8. Generally, the change of the water surface 2a with respect to H 3 is about 20 to 30%, and in this case, the induction motor 8 requires a capacity of 10 to 15% or less of the generator 9.
G.考案の効果 以上実施例とともに具体的に説明したように、本考案
によれば始動時に水を汲み上げ導水管にサイホン機能を
もたせるためのポンプ及び電動機を、水車の定常運転時
には水車及びこれを原動機とする発電機として機能せし
めることができるので、貯水池の水面の変化に関係なく
総合的な効率を向上せしめて理想的な運転が可能とな
る。また、導水管を水で充満するための始動装置は一般
的なポンプ及び電動機で形成したので、安価で故障の少
ない装置とすることができ、しかも発電システムとして
も利用し得るので、この点でも設備費が低廉なものとな
る。G. Effect of the Invention As described in detail in connection with the above embodiments, according to the present invention, a pump and an electric motor for pumping water at the time of start-up and having a siphon function in the water conduit are provided. Since it can be made to function as a power generator that serves as a prime mover, ideal efficiency can be achieved by improving overall efficiency regardless of changes in the water level of the reservoir. Further, since the starting device for filling the water conduit with water is formed by a general pump and electric motor, it can be an inexpensive device with few malfunctions and can be used as a power generation system. Equipment costs are low.
第１図は本考案の実施例の全体を概念的に示す説明図、
第２図はそのポンプの特性を示すグラフ、第３図は電動
機と発電機の接続状態を示す回路図である。 図面中、 １は導水管、２は貯水池、３は堰堤、3aは上端面、４は
水車、７はポンプ、８は誘導電動機である。FIG. 1 is an explanatory view conceptually showing the whole embodiment of the present invention,
FIG. 2 is a graph showing the characteristics of the pump, and FIG. 3 is a circuit diagram showing the connection state of the electric motor and the generator. In the drawings, 1 is a water conduit, 2 is a reservoir, 3 is a dam, 3a is an upper end surface, 4 is a water turbine, 7 is a pump, and 8 is an induction motor.
Claims (1)
もに、ダムの堰堤の上端面を越えて他端が貯水池の下方
に配設された水車に連結されているサイホン管となり得
る導水管を有するサイホン式水車において、導水管の貯
水池側の開口部に配設されるとともに電動機により駆動
されて貯水池の水を導水管の頂部を越えて水車側に汲み
上げるポンプとして機能するとともに、サイホンとして
機能する導水管を流れる水により駆動されて水車として
機能し、前記電動機を発電機として機能させるように構
成したことを特徴とするサイホン式水車。1. A water conduit pipe, one end of which opens in the water of a reservoir of a dam, and which can be a siphon pipe, which crosses the upper end surface of the dam dam and is connected to a water turbine disposed at the other end of the dam below the reservoir. In the siphon type water turbine that has, it functions as a pump that is installed at the opening of the water guide pipe on the reservoir side and is driven by an electric motor to pump the water in the reservoir to the turbine side over the top of the water guide pipe. A siphon-type water turbine, which is configured to be driven by water flowing through a water conduit to function as a water turbine and to cause the electric motor to function as a generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987107657U JPH082468Y2 (en) | 1987-07-15 | 1987-07-15 | Siphon turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987107657U JPH082468Y2 (en) | 1987-07-15 | 1987-07-15 | Siphon turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6413272U JPS6413272U (en) | 1989-01-24 |
| JPH082468Y2 true JPH082468Y2 (en) | 1996-01-29 |
Family
ID=31342269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987107657U Expired - Lifetime JPH082468Y2 (en) | 1987-07-15 | 1987-07-15 | Siphon turbine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082468Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094742A (en) * | 2009-12-09 | 2011-06-15 | 株式会社石垣 | Siphon type hydraulic generating set |
| JP4965698B2 (en) * | 2010-10-28 | 2012-07-04 | 貴 吉田 | Siphon tube |
| JP5028655B1 (en) * | 2012-01-24 | 2012-09-19 | 株式会社オージーエイ | Siphon type high efficiency hydroelectric power generation system. |
| JP6838735B2 (en) * | 2016-01-29 | 2021-03-03 | 株式会社山辰組 | Siphon water supply device and siphon water supply method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57143200A (en) * | 1981-03-02 | 1982-09-04 | Kubota Ltd | Siphon discharger of pump |
| JPS58114880U (en) * | 1982-01-30 | 1983-08-05 | 株式会社明電舎 | Starting device for siphon water turbine |
-
1987
- 1987-07-15 JP JP1987107657U patent/JPH082468Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6413272U (en) | 1989-01-24 |
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