JPH0637572U - Cross flow turbine speed controller - Google Patents
Cross flow turbine speed controllerInfo
- Publication number
- JPH0637572U JPH0637572U JP080202U JP8020292U JPH0637572U JP H0637572 U JPH0637572 U JP H0637572U JP 080202 U JP080202 U JP 080202U JP 8020292 U JP8020292 U JP 8020292U JP H0637572 U JPH0637572 U JP H0637572U
- Authority
- JP
- Japan
- Prior art keywords
- speed
- guide vanes
- turbine
- guide
- flow turbine
- 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.)
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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
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- Hydraulic Turbines (AREA)
- Control Of Water Turbines (AREA)
Abstract
(57)【要約】
【目的】 個々のガイドベ−ンを急閉鎖する時の速度を
適宜の値に定め、全部のガイドベ−ンを同時に急閉制御
した場合の水圧の上昇及び個々に急閉制御した場合の速
度の上昇が、夫々の許容範囲を超過しない様にしたクロ
スフロ−水車の速度制御装置を得ること。
【構成】 各々別個に開閉制御される複数のガイドベ−
ンを備えたクロスフロ−水車に於いて、前記ガイドベ−
ンを個々に、又は組合わせて急閉制御する際に、単位時
間に調整される前記水車の水口開口面積を略々一定にす
ることを特徴とする。
(57) [Summary] [Purpose] The speed at which each guide vane is rapidly closed is set to an appropriate value, and the water pressure rises and individual quick-close control is performed when all guide vanes are simultaneously closed. To obtain a speed control device for a cross-flow turbine in which the increase in speed in the case of doing so does not exceed the respective allowable range. [Structure] A plurality of guide rails, each of which is controlled to open and close independently
In a cross flow turbine equipped with a guide,
When the quick closing control is performed individually or in combination with each other, the water outlet opening area of the water turbine adjusted per unit time is made substantially constant.
Description
【０００１】[0001]
本考案は、小水力発電所に設置され、各々別個に開閉制御される複数のガイド ベ−ンを備えたクロスフロ−水車の速度制御装置の改良に関し、特に各々のガイ ドベ−ンの開度に関係なく、全てのガイドベ−ンを同時に急閉鎖した場合には、 水車水口上流側の水圧上昇を、又、各々のガイドベ−ンを別個に急閉鎖した場合 には、水車の過速を夫々の許容範囲内に抑制する様にしたクロスフロ−水車の速 度制御装置に関するものである。 The present invention relates to an improvement of a speed control device for a cross flow turbine equipped with a plurality of guide vanes which are installed in a small hydroelectric power station and each of which is controlled to open and close independently, and more particularly to the opening of each guide vane. Irrespective of whether all the guide vanes are suddenly closed at the same time, the water pressure rises upstream of the water inlet of the turbine, and when each guide vane is suddenly closed individually, the turbine overspeed is increased. The present invention relates to a speed control device for a cross flow turbine, which is controlled within an allowable range.
【０００２】[0002]
クロスフロ−水車は、ドラム形のランナを有し、ドラムの中心線に位置する回 転軸をケ−シングにより支承され、ランナは回転軸に直交する方向から導入され る流水により回転駆動される小容量水車で、小水力発電所に適用される。 A cross-flow turbine has a drum-shaped runner, and a rotating shaft located at the center line of the drum is supported by a casing, and the runner is a small drive driven by running water introduced from a direction orthogonal to the rotating shaft. Capacity turbine, applied to small hydropower plants.
【０００３】 図２は、クロスフロ−水車の側面概念図であり、図３は、その要部を示す斜視 図で、図２と同一部分には同一符号を付している。図２及び図３に於て、１は、 ケ−シング、２は、その両端に突出する回転軸によりケ−シング１に支承される ランナ、３は、ケ−シング１の上部から図示しない水圧鉄管を介してランナ３内 に導入される流水量を調節するガイドベ−ンである。FIG. 2 is a conceptual side view of the cross-flow turbine, and FIG. 3 is a perspective view showing a main part thereof, and the same parts as those in FIG. 2 are denoted by the same reference numerals. In FIG. 2 and FIG. 3, 1 is a casing, 2 is supported by the casing 1 by rotating shafts protruding from both ends thereof, and runner 3 is a hydraulic pressure (not shown) from the upper part of the casing 1. This is a guide vane that regulates the amount of flowing water introduced into the runner 3 via the iron pipe.
【０００４】 上記の様に構成されたクロスフロ−水車に於いて、ケ−シング１の上部から導 入された流水は、ガイドベ−ン３の開閉によりその流量が調節され、ランナ２内 に入り、その上部ブレ−ドに当りランナ２内を通過し、更に下部ブレ−ドに当っ た後ケ−シング１の外に放出される。この様にして流水は、ランナ２内を通過し ながら、上部ブレ−ドでは衝動力により、下部ブレ−ドでは反動力によりランナ ２に回転力を与え、ランナ２を反時計方向に回転させる。In the cross-flow turbine constructed as described above, the flow rate of the running water introduced from the upper part of the casing 1 is adjusted by opening and closing the guide vanes 3, and enters the runner 2. It hits the upper blade, passes through the runner 2, hits the lower blade, and then is discharged to the outside of the casing 1. In this way, the running water, while passing through the runner 2, imparts a rotational force to the runner 2 by the impulse force in the upper blade and the reaction force in the lower blade to rotate the runner 2 counterclockwise.
【０００５】 そしてこの回転は、ランナ２の回転軸に連結された図示しない発電機に伝達さ れ、発電機を回転させて、流水の位置エネルギ−を電気エネルギ−に変換する。 従って、流水の流量を調節することにより発電機の発生電力を調節することが出 来る。This rotation is transmitted to a generator (not shown) connected to the rotary shaft of the runner 2 to rotate the generator and convert the potential energy of running water into electric energy. Therefore, it is possible to adjust the power generated by the generator by adjusting the flow rate of running water.
【０００６】 ところで、クロスフロ−水車の効率は、ランナ２内に導入される流水の流量に より大きく変化するが、流量に無関係に常に高効率運転が出来る様に考慮されて いる。即ちランナ２は例えば、図３に示す様に、一体構造ではあるが２つの部分 ２ａ，２ｂに区分され、ランナ２の区分に応じて、ガイドベ−ン３も各々別個に 開閉制御され、夫々の幅がｌａ，ｌｂ（ｌａ＜ｌｂ）の２つの部分３ａ，３ｂに 分割されている。By the way, the efficiency of the cross-flow turbine changes greatly depending on the flow rate of the flowing water introduced into the runner 2, but it is considered that high efficiency operation can always be performed regardless of the flow rate. That is, as shown in FIG. 3, the runner 2 is divided into two parts 2a and 2b although it is of an integral structure, and depending on the division of the runner 2, the guide vanes 3 are individually controlled to open and close. It is divided into two parts 3a, 3b having a width of la, lb (la <lb).
【０００７】 そこで、水車に導入出来る流水量が少量の時は、ガイドベ−ン３ａのみの開閉 制御により、中量の時は、ガイドベ−ン３ｂのみの開閉制御により、そして大量 の時は、ガイドベ−ン３ａと３ｂとを組合わせて開閉制御することにより、効率 の良い水車運転を実現することが出来る。Therefore, when the amount of flowing water that can be introduced into the turbine is small, the opening / closing control of only the guide vane 3a is performed, when it is medium, the opening / closing control of only the guide vane 3b is used, and when it is large, the guide vane is opened. By controlling the opening and closing of the turbines 3a and 3b in combination, efficient water turbine operation can be realized.
【０００８】 ガイドベ−ンを開閉すると、当然のことながら、図示はしてないが水車のケ− シング１に導水する水圧鉄管内の流水量が変化し、それに伴って水車水口上流側 の水圧に変化が生じる。水圧変化の顕著な場合は、水車に連結された図示しない 発電機の負荷が、この発電機の接続される図示しない電力系統の事故等により遮 断され、ガイドベ−ン３の急閉鎖を余儀無くされた場合である。ガイドベ−ン３ の急閉鎖時には、水車水口上流側の水圧が急上昇し、最悪の場合には水圧鉄管を 破壊する惧がある。従って、ガイドベ−ンを閉鎖した時に発生する水圧上昇に対 しては、水圧鉄管の経済的強度、ガイドベ−ンの経済的急閉鎖速度等を勘案して 予め許容値が定められている。When the guide vanes are opened and closed, naturally, although not shown, the running water amount in the penstock penetrating the casing 1 of the water turbine changes, and the water pressure on the upstream side of the water inlet of the water turbine changes accordingly. Change occurs. When the water pressure changes significantly, the load of a generator (not shown) connected to the turbine is interrupted due to an accident in the power system (not shown) to which this generator is connected, and the guide vane 3 must be suddenly closed. That is the case. When the guide vane 3 is closed abruptly, the water pressure on the upstream side of the water inlet of the turbine suddenly rises, and in the worst case, the penstock can be destroyed. Therefore, with respect to the increase in water pressure that occurs when the guide vanes are closed, the allowable value is set in advance in consideration of the economic strength of the penstock, the economic rapid closing speed of the guide vanes, and the like.
【０００９】 ここで、図３に示した構成の水車に就いて考察するに、ガイドベ−ンの急閉鎖 速度を同一にすれば、少水量時に於けるガイドベ−ン３ａのみの急閉鎖時と、大 水量時に於けるガイドベ−ン３ａと３ｂとの組合わせ急閉鎖時とに発生する水圧 の上昇値は、後者の方が大きいことは明らかである。Considering the turbine having the configuration shown in FIG. 3, if the speed of closing the guide vanes is the same, the speed of closing only the guide vanes 3a when the amount of water is small, It is apparent that the latter has a larger increase in the water pressure generated when the guide vanes 3a and 3b are combined and suddenly closed at the time of a large amount of water.
【００１０】 従って、ガイドベ−ン３ａのみの制御時に於ける急閉鎖速度に合わせて、ガイ ドベ−ン３ｂのみの制御時、又はガイドベ−ン３ａと３ｂとの組合わせ制御時に 於ける急閉鎖速度を決定する（同一速度にする）と、ガイドベ−ン３ｂのみ、又 はガイドベ−ン３ａと３ｂと組合わせ時急閉鎖時に於ては、水圧の上昇値が上記 の許容値より大きくなり好ましくない。Therefore, according to the rapid closing speed when only the guide vanes 3a are controlled, the sudden closing speed when only the guide vanes 3b are controlled or when the combination of the guide vanes 3a and 3b is controlled. Is determined (equal speed), the water pressure increase value is larger than the above allowable value when only the guide vanes 3b are combined, or when the guide vanes 3a and 3b are combined and suddenly closed. .
【００１１】 又逆に、ガイドベ−ン３ａと３ｂとの組合わせ急閉鎖時速度に合わせて、ガイ ドベ−ン３ａのみ、又はガイドベ−ン３ｂのみの急閉鎖速度を決定すると、ガイ ドベ−ン３ａのみ、又はガイドベ−ン３ｂのみの急閉鎖時に於ける閉鎖速度が遅 く、水車速度はその許容過速度より高速となり、水車保護上好ましくない。On the contrary, if the speed of the guide vanes 3a alone or the speed of the guide vanes 3b alone is determined in accordance with the speed of the combination of the guide vanes 3a and 3b, the guide vanes 3a and 3b are closed. 3a only or the guide vane 3b only when closed rapidly, the closing speed is slow, and the turbine speed becomes higher than the allowable overspeed, which is not preferable for protecting the turbine.
【００１２】[0012]
本考案が解決しようとする問題点は、各々別個に開閉制御される複数のガイド ベ−ンを備えたクロスフロ−水車の複数のガイドベ−ンを急閉鎖する時の速度を 同一にすると、全部のガイドベ−ンを同時に急閉制御した場合、水車水口上流側 水圧の上昇が、又、個々に急閉制御作した場合、水車速度が、夫々の許容範囲を 超過することである。従って、本考案の目的は、個々のガイドベ−ンを急閉鎖す る時の速度を適宜の値に定め、全部のガイドベ−ンを同時に急閉制御した場合の 水圧の上昇及び個々に急閉制御した場合の速度の上昇が、夫々の許容範囲を超過 しない様にしたクロスフロ−水車の速度制御装置を得ることである。 The problem to be solved by the present invention is that if the speeds at which the plurality of guide vanes of a cross flow turbine having a plurality of guide vanes that are individually controlled to open and close are suddenly closed are made to be the same, all When the guide vanes are simultaneously closed rapidly, the water pressure at the upstream side of the water turbine rises, and when the individual quick closing controls are operated, the turbine speed exceeds the permissible range. Therefore, the object of the present invention is to set the speed at which each guide vane is closed rapidly to an appropriate value, and to increase the water pressure and control the individual quick closure when all guide vanes are closed simultaneously. In this case, the increase in speed is to obtain the speed control device for the cross-flow turbine that does not exceed the permissible range.
【００１３】[0013]
本考案は、上記目的を達成するために、各々別個に開閉制御される複数のガイ ドベ−ンを備えたクロスフロ−水車に於いて、前記ガイドベ−ンを個々に、又は 組合わせて急閉制御する際に、単位時間に調整される前記クロスフロ−水車の水 口開口面積を略々一定にすることを特徴とする。 In order to achieve the above object, the present invention provides a cross flow turbine equipped with a plurality of guide vanes, each of which is controlled to open and close independently, and the guide vanes are individually or combined in combination to perform a quick closing control. In doing so, the water outlet opening area of the cross flow turbine adjusted to a unit time is made substantially constant.
【００１４】[0014]
ガイドベ−ンを個々に、又は組合わせて急閉制御する際に、単位時間に調整さ れる開口面積を略々一定にすると、単位時間に調整される流量も略々一定となる から、水車水口上流側の水圧上昇も、又水車の速度上昇も共に夫々の許容範囲を 超過することはない。 When the guide vanes are individually or combined for rapid closing control, if the opening area adjusted per unit time is made approximately constant, the flow rate adjusted per unit time will also be substantially constant. Neither the increase in water pressure on the upstream side nor the increase in speed of the turbine exceeds the allowable range.
【００１５】[0015]
以下、図面を参照して本考案を説明する。図１は、本考案の一実施例を示す 単線結線図であり、図３に示されるガイドベ−ン、つまりそれぞれの幅がｌａ， ｌｂの２つの部分に区分されたガイドベ−ンを有するクロスフロ−水車に適用す るものとして説明する。 Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 is a single-line connection diagram showing an embodiment of the present invention. A cross flow having a guide vane shown in FIG. 3, that is, a guide vane divided into two portions each having a width of la and lb. It is explained as applied to a water turbine.
【００１６】 図１に於て、３ａ．３ｂは、夫々幅がｌａ，ｌｂのガイドベ−ンである。各々 のガイドベ−ン３ａ，３ｂを別個に開閉制御するためのサ−ボモ−タ例えば電動 サ−ボモ−タ５ａ，５ｂの操作ロッド５ｃ，５ｄが、夫々の図示右側，左側に突 出した回転軸に取付けられたア−ム３ｃ，３ｄの上端に連結されている。６ａ， ６ｂは、サ−ボアンプで、夫々電動サ−ボモ−タ５ａ，５ｂに接続され、電動サ −ボモ−タ５ａ，５ｂを駆動制御する。７ａ，７ｂ，７ｃは、夫々ガイドベ−ン ３ａ，３ｂの急閉鎖速度（電動サ−ボモ−タ５ａ，５ｂ内のモ−タの回転速度） が設定される速度設定器で、切換開閉器８ａ，８ｂを介してサ−ボアンプ６ａ， ６ｂに接続される。In FIG. 1, 3a. 3b is a guide vane having widths la and lb, respectively. The rotation of the servomotors for controlling the opening and closing of the respective guide vanes 3a and 3b, for example, the operating rods 5c and 5d of the electric servomotors 5a and 5b, are projected to the right and left sides in the figure, respectively. It is connected to the upper ends of the arms 3c and 3d attached to the shaft. Servo amplifiers 6a and 6b are connected to the electric servomotors 5a and 5b, respectively, and drive and control the electric servomotors 5a and 5b. Reference numerals 7a, 7b and 7c are speed setting devices to which the rapid closing speeds of the guide vanes 3a and 3b (rotational speeds of the motors in the electric servomotors 5a and 5b) are set, respectively, and a switching switch 8a. , 8b are connected to the servo amplifiers 6a, 6b.
【００１７】 図１に示す切換開閉器８ａ，８ｂの接続から明らかな様に、切換開閉器８ａ， ８ｂの切換接触子が図示の位置に於ては、速度設定器７ａは、ガイドベ−ン３ａ の単独急閉制御用として、又速度設定器７ｂは、ガイドベ−ン３ｂの単独急閉制 御用として機能し、切換開閉器８ａ，８ｂの切換接触子が切換位置に於ては、速 度設定器７ａ，７ｂは除外され、７ｃはガイドベ−ン３ａと３ｂとの組合わせ時 の急閉制御用として機能する。この様に、ガイドベ−ン３ａ，３ｂは夫々、それ らの単独，組合わせ急閉制御時には、夫々異なる速度指令が与えられる。As is apparent from the connection of the switching switches 8a and 8b shown in FIG. 1, when the switching contacts of the switching switches 8a and 8b are at the positions shown in the drawing, the speed setting device 7a is the guide vane 3a. Of the guide vane 3b, and the speed setting device 7b functions as a single quick closing control of the guide vane 3b. When the switching contacts of the switching switches 8a and 8b are set to the switching position, the speed is set. The units 7a and 7b are excluded, and the unit 7c functions as a quick closing control when the guide vanes 3a and 3b are combined. In this way, the guide vanes 3a and 3b are given different speed commands during their individual and combined rapid closing control.
【００１８】 この時、幅が最小（ｌａ）のガイドベ−ン３ａのみを急閉制御した場合、水車 水口上流側の水圧上昇及び水車の速度上昇が共に許容値を越えない様に、その急 閉鎖速度を決定し、この速度を Ｖａ とすると、他の幅がｌｂ（ｌｂ＞ｌａ） のガイドベ−ン３ｂのみ、又はガイドベ−ン３ａと３ｂとの組合わせ時の急閉鎖 速度は、下記に示す式により決定される。At this time, when only the guide vane 3a having the minimum width (la) is subjected to the rapid closing control, the rapid closing is performed so that the water pressure upstream of the water turbine water inlet and the speed increase of the turbine do not exceed the allowable values. If the speed is determined and this speed is Va, the speed of closing rapidly when only the guide vanes 3b having other widths of lb (lb> la) or the combination of the guide vanes 3a and 3b is shown below. Determined by the formula.
【００１９】 ガイドベ−ン３ａのみの急閉鎖速度を Ｖａ とすると ガイドベ−ン３ｂのみの急閉鎖速度 Ｖｂ は Ｖｂ＝Ｖａ×ｌａ÷ｌｂ ガイドベ−ン３ａと３ｂとの組合わせ時の急閉鎖速度 Ｖｃ は Ｖｃ＝Ｖａ×ｌａ÷（ｌａ＋ｌｂ） ここで Ｖａ×ｌａ は、単位時間当りの開口面積の変化速度である。When the rapid closing speed of only the guide vane 3a is Va, the rapid closing speed of only the guide vane 3b is Vb: Vb = Va × la ÷ lb The rapid closing speed of the combination of the guide vanes 3a and 3b Vc Is Vc = Va × la ÷ (la + lb) where Va × la is the rate of change of the opening area per unit time.
【００２０】 上記の様に速度設定器７ａ，７ｂ及び７ｃには、夫々、急閉鎖速度Ｖａ，Ｖｂ 及びＶｃが設定されている。ここで、流水量が少量時に於いて、ガイドベ−ン３ ａのみを急閉鎖制御する場合には、切換開閉器８ａは切換えることなく図示の状 態のままとし、速度設定器７ａに設定された上記の急閉鎖速度 Ｖａ を、切換 開閉器８ａを介してサ−ボアンプ６ａに与え、電動サ−ボモ−タ５ａを動作させ て、ガイドベ−ン３ａの開度に関係なく、ガイドベ−ン３ａを急閉鎖速度Ｖａに て閉鎖する。As described above, the rapid closing speeds Va, Vb and Vc are set in the speed setters 7a, 7b and 7c, respectively. Here, when only the guide vane 3a is controlled to be rapidly closed when the amount of flowing water is small, the switching switch 8a is kept in the illustrated state without switching and is set in the speed setting device 7a. The sudden closing speed Va is applied to the servo amplifier 6a via the switching switch 8a to operate the electric servomotor 5a, so that the guide vane 3a is opened regardless of the opening of the guide vane 3a. It closes at the sudden closing speed Va.
【００２１】 流水量が中量時に於いて、ガイドベ−ン３ｂのみを急閉鎖制御する場合には、 上記と同様に、速度設定器７ｂに設定された上記の急閉鎖速度 Ｖｂ を、切換 開閉器８ｂを介してサ−ボアンプ６ｂに与え、電動サ−ボモ−タ５ｂを動作させ て、ガイドベ−ン３ｂの開度に関係なく、ガイドベ−ン３ｂを急閉鎖速度Ｖｂに て閉鎖する。When only the guide vane 3b is subjected to the rapid closing control when the amount of flowing water is medium, the rapid closing speed Vb set in the speed setting device 7b is switched to the switching switch in the same manner as described above. 8b to the servo amplifier 6b to operate the electric servomotor 5b to close the guide vane 3b at the rapid closing speed Vb regardless of the opening of the guide vane 3b.
【００２２】 流水量が大量時に於いて、ガイドベ−ン３ａと３ｂとを組合わせ急閉鎖制御す る場合には、切換開閉器８ａを切換え、速度設定器７ｃに設定された上記の急閉 鎖速度 Ｖｃ を、切換開閉器８ａ，８ｂを介してサ−ボアンプ６ａ，６ｂに与 え、電動サ−ボモ−タ５ａ，５ｂを動作させて、ガイドベ−ン３ａ，３ｂの開度 に関係なく、ガイドベ−ン３ａ，３ｂを急閉鎖速度Ｖｃにて閉鎖する。When the guide vanes 3a and 3b are combined for rapid closing control when the amount of flowing water is large, the switching switch 8a is switched and the rapid closing chain set in the speed setting device 7c is used. The speed Vc is applied to the servo amplifiers 6a and 6b via the switching switches 8a and 8b to operate the electric servo motors 5a and 5b, regardless of the opening degree of the guide vanes 3a and 3b. The guide vanes 3a and 3b are closed at a rapid closing speed Vc.
【００２３】[0023]
以上本考案に就いて詳細に説明したが、本考案によれば、各々別個に開閉制御 される複数のガイドベ−ンを備えたクロスフロ−水車に於いて、前記ガイドベ− ンを個々に、又は組合わせて急閉制御する際に、単位時間に調整される前記水車 の水口開口面積が略々一定となる様にしたから、各々のガイドベ−ンの開度に無 関係に、各々のガイドベ−ンを急閉鎖しても、水車水口上流側の水圧上昇及び水 車速度の上昇を夫々の許容範囲内に抑制することの可能なクロスフロ−水車の速 度制御装置を提供することが出来る。更に、各々のガイドベ−ンを、単独又は組 合わせる等どのガイドベ−ンを急閉制御しても、単位時間当りの流水量の変化が 等しいから、急閉制御動作が円滑に行われる。 Although the present invention has been described in detail above, according to the present invention, in a cross flow turbine having a plurality of guide vanes that are individually controlled to open and close, the guide vanes can be individually or assembled. At the same time, when the quick closing control is performed, the water outlet opening area of the water turbine that is adjusted per unit time is set to be substantially constant.Therefore, each guide vane is independent of the opening of each guide vane. It is possible to provide a speed control device for a cross flow turbine capable of suppressing an increase in water pressure on the upstream side of the turbine water port and an increase in turbine speed within their respective allowable ranges even when the turbine is suddenly closed. Further, even if any of the guide vanes, such as a single guide vane or a combination of the guide vanes, is subjected to the rapid closing control, the change of the flowing water amount per unit time is the same, so that the rapid closing control operation is smoothly performed.
【図１】本考案の一実施例を示す単線結線図。FIG. 1 is a single wire connection diagram showing an embodiment of the present invention.
【図２】クロスフロ−水車の側面概念図。FIG. 2 is a side view conceptual diagram of a cross flow turbine.
【図３】図２の要部を示す斜視図。FIG. 3 is a perspective view showing a main part of FIG.
１……ケ−シング、 ２……ランナ、 ３……ガイドベ−ン、 ５……サ−ボモ−タ、 ６……サ−ボアンプ、 ７……速度設定器、 ８……切換開閉器。 1 ... Casing, 2 ... Runner, 3 ... Guide vane, 5 ... Servo motor, 6 ... Servo amplifier, 7 ... Speed setting device, 8 ... Switching switch.
Claims (1)
ベ−ンを備えたクロスフロ−水車に於いて、前記ガイド
ベ−ンを個々に、又は組合わせて急閉制御する際に、単
位時間に調整される前記クロスフロ−水車の水口開口面
積が略々一定であることを特徴とするクロスフロ−水車
の速度制御装置。1. A cross flow turbine having a plurality of guide vanes each of which is controlled to open and close independently, and when the guide vanes are individually or in combination controlled to be rapidly closed, the unit time is adjusted. The speed control device for a cross-flow turbine, wherein the water outlet opening area of the cross-flow turbine is substantially constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992080202U JP2579543Y2 (en) | 1992-10-26 | 1992-10-26 | Cross flow turbine speed controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992080202U JP2579543Y2 (en) | 1992-10-26 | 1992-10-26 | Cross flow turbine speed controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0637572U true JPH0637572U (en) | 1994-05-20 |
| JP2579543Y2 JP2579543Y2 (en) | 1998-08-27 |
Family
ID=13711802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992080202U Expired - Lifetime JP2579543Y2 (en) | 1992-10-26 | 1992-10-26 | Cross flow turbine speed controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2579543Y2 (en) |
-
1992
- 1992-10-26 JP JP1992080202U patent/JP2579543Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2579543Y2 (en) | 1998-08-27 |
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