JPH0478837B2 - - Google Patents
Info
- Publication number
- JPH0478837B2 JPH0478837B2 JP60135178A JP13517885A JPH0478837B2 JP H0478837 B2 JPH0478837 B2 JP H0478837B2 JP 60135178 A JP60135178 A JP 60135178A JP 13517885 A JP13517885 A JP 13517885A JP H0478837 B2 JPH0478837 B2 JP H0478837B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- suction pipe
- runner
- supply pipe
- pipe
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 61
- 230000010355 oscillation Effects 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は揚水発電所の水車に接続される吸出し
管内の水面の動揺を防止する装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a device for preventing agitation of the water surface in a suction pipe connected to a water wheel of a pumped storage power plant.
揚水発電所としては、落水によつて運転する水
車に発電機を直結し、発電機を電動機とし水車を
ポンプとして運転するもの、或いは発電機と電動
機を兼用機とし、この両端に水車及びポンプを直
結したもの等がある。
Pumped storage power plants are those in which a generator is directly connected to a water wheel that is driven by falling water, and the generator is used as an electric motor and the water wheel is used as a pump, or the generator and electric motor are combined, with a water wheel and a pump at both ends. There are things that are directly connected.
ところで、揚水発電所にあつては、水車（ポン
プ）に直結する発電機（電動機）によつて揚水起
動を行なう際、或いは揚水動力を少なくする場合
又は揚水待機運転及び調相運転を行なう場合等に
は、吸出し管内に空気を満たし、ケーシング内の
ランナーを空気中にて回転せしめるようにしてい
る。 By the way, in the case of pumped storage power plants, when starting pumping with a generator (motor) directly connected to the water turbine (pump), when reducing pumping power, when performing pumping standby operation and phase adjustment operation, etc. In this method, the suction pipe is filled with air, and the runner inside the casing is rotated in the air.
しかしながら、揚水起動時等においてランナー
を空気中で回転せしめると、第３図に示す如く、
ケーシング１００に一端が開口する吸出し管１０
１内の水面１０２が激しく動揺し、ケーシング１
００内のランナー１０３に波が干渉することとな
る。その結果、以下の如き不都合が生じる。 However, when the runner is rotated in the air when starting pumping, etc., as shown in Figure 3,
Suction pipe 10 with one end open in casing 100
The water surface 102 inside the casing 1 is shaken violently, and the water surface 102 inside the casing 1 is
The waves will interfere with the runner 103 inside 00. As a result, the following inconveniences occur.
即ち、発電機の系統並列に要する回転速度の制
御が困難になり、主機（ポンプ等）を揚水起動さ
せるための起動装置の容量を大きくしなければな
らず、揚水待機運転・調相運転時の損失が増大
し、空転時のランナー干渉波によつて各部間隙に
温度上昇が生じ、更にこれらを吸出し管自体の大
きさによつて解決しようとすれば、吸出し管の埋
設深度を大きくしなければならず、工事費、スペ
ース等の面において不利が生じる。 In other words, it becomes difficult to control the rotational speed required for parallel generator systems, and the capacity of the starting device to start the main engine (pump, etc.) with pumped water must be increased, and the The loss increases, and the temperature rises in the gaps between the parts due to runner interference waves during idling.Furthermore, if these problems are to be solved by changing the size of the suction pipe itself, the depth of burial of the suction pipe must be increased. However, there will be disadvantages in terms of construction costs, space, etc.
本発明は、上記事情に鑑みて創案されたもの
で、その目的とする処は、前述した従来の水車の
吸出し管が有する問題点を解消し、ランナーの空
転時に吸出し管の水面の動揺を防止することがで
きる水面動揺防止装置を提供することにある。
The present invention was devised in view of the above circumstances, and its purpose is to solve the aforementioned problems of the suction pipe of a conventional water turbine, and to prevent the fluctuation of the water surface of the suction pipe when the runner idles. An object of the present invention is to provide a water surface oscillation prevention device that can prevent water surface oscillations.
上記目的を達成するため本発明は、水車の吸出
し管に給水管及び給気管を接続し、ランナーの空
転時に該給水管から高圧水を吸出し管の水面近く
に噴出し、また給気管から高圧空気を吸出し管内
に噴出することにより、吸出し管の水面の動揺を
抑制し、ランナーに干渉波が生ずることがないよ
うにした。
In order to achieve the above object, the present invention connects a water supply pipe and an air supply pipe to the suction pipe of a water turbine, and when the runner idles, high pressure water is spouted from the water supply pipe near the water surface of the suction pipe, and high pressure air is By squirting water into the suction pipe, the movement of the water surface in the suction pipe is suppressed and interference waves are not generated in the runner.
以下に本発明の実施例を添付図面に基づいて説
明する。
Embodiments of the present invention will be described below based on the accompanying drawings.
第１図は本発明に係る水面動揺防止装置を適用
した水車の縦断面図、第２図は同水車の要部の平
断面図である。 FIG. 1 is a longitudinal sectional view of a water turbine to which a water surface oscillation prevention device according to the present invention is applied, and FIG. 2 is a plan sectional view of the main parts of the same water turbine.
水車１は渦巻ケーシング２内にランナー３を回
転自在に収納しており、ケーシング２には流水通
路である水圧鉄管４が接続され、またケーシング
２の下面開口には吸出し管５の上端開口が接続さ
れる。そしてケーシング２上面からは主軸３１が
突出し、この主軸３１は図示しない発電機に直結
するとともに前記ランナー３と一体的に回転す
る。 The water turbine 1 has a runner 3 rotatably housed in a spiral casing 2. A penstock 4, which is a flowing water passage, is connected to the casing 2, and the upper end opening of a suction pipe 5 is connected to the lower opening of the casing 2. be done. A main shaft 31 protrudes from the upper surface of the casing 2, and this main shaft 31 is directly connected to a generator (not shown) and rotates integrally with the runner 3.
そして、本発明にあつては、前記水圧鉄管４か
ら給水管６を分岐し、この給水管６を吸出し管５
の上部に略接線方向から接続せしめている。この
給水管６は実施例にあつては２本設けられ、第２
図に示すように互いに対向する位置において吸出
し管５に接続する。また給水管６の途中には開閉
弁７、流量調整弁８、減圧弁９及び逆止弁１０等
を設けている。 In the present invention, a water supply pipe 6 is branched from the penstock pipe 4, and this water supply pipe 6 is connected to a suction pipe 5.
It is connected to the upper part of the main body from a substantially tangential direction. In the embodiment, two water supply pipes 6 are provided, and the second
As shown in the figure, they are connected to the suction pipe 5 at positions facing each other. Further, an on-off valve 7, a flow rate adjustment valve 8, a pressure reducing valve 9, a check valve 10, etc. are provided in the middle of the water supply pipe 6.
一方、水車１の近傍には空気タンク１１を配置
し、この空気タンク１１から給気管１２を導出
し、この給気管１２を給水管６と同様に吸出し管
５の上部に接続している。ここで給気管１２は実
施例にあつては２本設けられ、吸出し管５に対し
て直交する方向から接続され、その接続位置は前
記給水管６，６の中間で且つ給水管６，６よりも
若干低い位置となつている。また給気管１２にも
前記給水管６と同様に、開閉弁１３、流量調整弁
１４、逆止弁１５等を設けている。 On the other hand, an air tank 11 is arranged near the water turbine 1, and an air supply pipe 12 is led out from the air tank 11, and the air supply pipe 12 is connected to the upper part of the suction pipe 5 in the same way as the water supply pipe 6. Here, two air supply pipes 12 are provided in the embodiment, and are connected from a direction perpendicular to the suction pipe 5, and the connection position is between the water supply pipes 6, 6 and from the water supply pipes 6, 6. It is also located at a slightly lower position. Similarly to the water supply pipe 6, the air supply pipe 12 is also provided with an on-off valve 13, a flow rate adjustment valve 14, a check valve 15, and the like.
以上の如き構成からなる水車において、揚水起
動、揚水待機運転或いは調相運転等を行なうに
は、水圧鉄管４からケーシング２への給水を停止
し、ケーシング２内に空気を供給し、吸出し管５
内の水面がケーシング２よりも下位となるように
してランナー３を空転させる。 In a water turbine configured as described above, in order to perform pumping start-up, pumping standby operation, phase adjustment operation, etc., the water supply from the penstock 4 to the casing 2 is stopped, air is supplied into the casing 2, and the suction pipe 5
The runner 3 is idled so that the water level inside is lower than the casing 2.
そして、ランナー３の空転によつて従来であれ
ば吸出し管５内の水面が大きく波立ち、この波が
ランナー３と干渉することとなるのであるが、本
発明にあつては、ランナー３の空転時には、前記
給水管６を介して高圧水を波の回転方向と反対方
向から注水するようにするため、波力と高圧水と
が打消しあつて大きく波立つことがない。またこ
れと同時に水面下に給気管１２を介して高圧空気
を供給する。その結果、波力は更に減じられ波立
ちは更に抑制される。尚、給水量、給気量等は前
記給水管６及び給気管１２に設けた各種弁を操作
することにより行なう。 Conventionally, when the runner 3 idles, the water surface inside the suction pipe 5 becomes largely undulating, and these waves interfere with the runner 3, but in the present invention, when the runner 3 idles, Since high-pressure water is injected through the water supply pipe 6 from a direction opposite to the rotational direction of the waves, the wave force and high-pressure water cancel each other out, preventing large waves from forming. At the same time, high-pressure air is supplied below the water surface via the air supply pipe 12. As a result, wave force is further reduced and ripples are further suppressed. Incidentally, the amount of water supply, the amount of air supply, etc. are controlled by operating various valves provided in the water supply pipe 6 and the air supply pipe 12.
また実施例にあつては給水管及び給気管をそれ
ぞれ２本づつ設けたが、これらの本数は任意であ
る。 Further, in the embodiment, two water supply pipes and two air supply pipes were each provided, but the number of these pipes is arbitrary.
以上に説明した如く本発明によれば、吸出し管
に高圧水の給水管及び高圧空気の給気管を接続し
たため、ランナーの空転時にこれらの管から高圧
水及び高圧空気を吸出し管内に供給することによ
つて吸出し管内の水面の動揺を抑制することがで
きる。
As explained above, according to the present invention, since the high-pressure water supply pipe and the high-pressure air supply pipe are connected to the suction pipe, high-pressure water and high-pressure air can be supplied from these pipes into the suction pipe when the runner is idling. Therefore, it is possible to suppress the fluctuation of the water surface inside the suction pipe.
その結果、ランナーとの干渉を考慮しなくてよ
いので、揚水時の起動装置の低容量化、吸出し管
深さの小寸法化及び土木工事費の低減、揚水待機
運転及び調相運転時の電力節減、水車発電機の系
統並列時の揃速制御の容易化及び並列時間の短縮
化、更にはランナー空転時の各部間隙における温
度上昇の抑制等を図ることができ、水車自体の信
頼性も向上する。 As a result, since there is no need to consider interference with the runner, the capacity of the starting device during pumping can be reduced, the depth of the suction pipe can be reduced, civil engineering costs can be reduced, and the power consumption during pumping standby operation and phase adjustment operation can be reduced. This makes it easier to control speeds when the water turbine generators are paralleled in parallel, shortens the parallel time, and suppresses the temperature rise in the gaps between the parts when the runners are idling, and improves the reliability of the water turbine itself. do.
第１図は本発明に係る水面動揺防止装置を適用
した水車の縦断面図、第２図は同水車の要部平断
面図、第３図は従来の水車の縦断面図である。
１……水車、２……ケーシング、３……ランナ
ー、４……水圧鉄管、５……吸出し管、６……給
水管、１１……空気タンク、１２……給気管。
FIG. 1 is a longitudinal cross-sectional view of a water turbine to which a water surface oscillation prevention device according to the present invention is applied, FIG. 2 is a plan cross-sectional view of a main part of the water turbine, and FIG. 3 is a longitudinal cross-sectional view of a conventional water turbine. 1...Water wheel, 2...Casing, 3...Runner, 4...Hydraulic iron pipe, 5...Suction pipe, 6...Water supply pipe, 11...Air tank, 12...Air supply pipe.
Claims (1)
が延出される水車において、前記吸出し管には、
高圧水を吸出し管内に噴出する給水管と、高圧空
気を吸出し管内に噴出する給気管が接続されてい
ることを特徴とする吸出し管の水面動揺防止装
置。1. In a water turbine in which a suction pipe extends from a casing containing a runner, the suction pipe includes:
A water surface oscillation prevention device for a suction pipe, characterized in that a water supply pipe that spouts high-pressure water into the suction pipe and an air supply pipe that spouts high-pressure air into the suction pipe are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60135178A JPS61294172A (en) | 1985-06-20 | 1985-06-20 | Preventing apparatus for turbulence of water surface in suction pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60135178A JPS61294172A (en) | 1985-06-20 | 1985-06-20 | Preventing apparatus for turbulence of water surface in suction pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61294172A JPS61294172A (en) | 1986-12-24 |
| JPH0478837B2 true JPH0478837B2 (en) | 1992-12-14 |
Family
ID=15145656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60135178A Granted JPS61294172A (en) | 1985-06-20 | 1985-06-20 | Preventing apparatus for turbulence of water surface in suction pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61294172A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO325509B1 (en) * | 2006-11-16 | 2008-05-26 | Ge Energy Norway As | Hydraulic reaction turbine and process for reducing pressure fluctuations |
| NO325508B1 (en) * | 2006-11-16 | 2008-05-26 | Ge Energy Norway As | Hydraulic reaction turbine |
| CN103244337A (en) * | 2013-04-27 | 2013-08-14 | 陈银轩 | Impact source for high-pressure impact power generation device |
| DE102014201055B3 (en) * | 2014-01-22 | 2015-03-19 | Voith Patent Gmbh | Device and method for dewatering an impeller of a hydraulic machine |
-
1985
- 1985-06-20 JP JP60135178A patent/JPS61294172A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61294172A (en) | 1986-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6158666B2 (en) | ||
| JPH0144904B2 (en) | ||
| JPH0478837B2 (en) | ||
| JPS6146664B2 (en) | ||
| JP2000352371A (en) | Compressed air storage type combined power generation system | |
| JPS6042357B2 (en) | How to operate a water turbine or pump turbine | |
| JPH082468Y2 (en) | Siphon turbine | |
| JP4287172B2 (en) | Hydroelectric generator | |
| US2194316A (en) | Power system for driving shafts | |
| CN2131998Y (en) | High-speed multifunctional oblique-projection centrifugul pump | |
| JP2000303943A (en) | Flowing water energy recovery method and apparatus | |
| RU1772791C (en) | Device for hydraulic regulation of rotary machine rotor | |
| JPS6217375A (en) | Operation control method of pump or pump turbine | |
| RU2160840C1 (en) | Hydraulic photon engine | |
| JP3494730B2 (en) | Vertical axis hydraulic machine suction pipe | |
| JPS59145373A (en) | Wave force power generator | |
| JPH10252680A (en) | Operation control device for pump | |
| JP3495089B2 (en) | Hydraulic machinery | |
| JP2000186662A (en) | Vertical shaft type reversible pump-turbine and its operation method | |
| JPS61126378A (en) | Pumping-up of water for hydraulic power-generator for ship | |
| JPS5926393A (en) | Method of filling water into dock | |
| JPH086678B2 (en) | How to start the turbine | |
| JPH0118266B2 (en) | ||
| RU2046222C1 (en) | Pump plant | |
| JPH06323233A (en) | Hydraulic power generation plant |