JPS605791B2 - How to control the water turbine and inlet valve - Google Patents
How to control the water turbine and inlet valveInfo
- Publication number
- JPS605791B2 JPS605791B2 JP50016253A JP1625375A JPS605791B2 JP S605791 B2 JPS605791 B2 JP S605791B2 JP 50016253 A JP50016253 A JP 50016253A JP 1625375 A JP1625375 A JP 1625375A JP S605791 B2 JPS605791 B2 JP S605791B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- main valve
- valve
- guide vane
- water 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.)
- Expired
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
- Control Of Water Turbines (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
この発明は水力発電所の入口弁と水車の起動時の制御方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an inlet valve of a hydroelectric power plant and a method of controlling the start-up of a water turbine.
水力発電所は火力発電所に比べ、容易に短時間で起動停
止ができる。Hydroelectric power plants can be started and stopped more easily and in a shorter time than thermal power plants.
この応動性がよい特長により、負荷ピーク時の電力供給
用発電に使用されている。また、電力の消費量は年々増
加する一方発電所の建設は少なく、ますます水力発電所
の負荷ピーク時の運転が必要となり、最近はごく短時間
でも電力の余剰時は揚水して上池に貯水しておき、負荷
ピーク時に発電する揚水式水車（ポンプ水車）発電所の
建設が多くなっている。その結果、負荷ピーク時の急速
発電への切換が必要となり、起動時間短縮のため入口弁
及びガイドベーンの単独作動時間は従来の観念を脱し急
激に短縮されてきた。しかし、従来の起動時間短縮は、
水車起動時の入口弁、ガイドべ−ン開放による水圧振動
発生の危険を考慮して第３図緩起動のごとく、まず入口
弁の側弁、主弁を全開し、しかるのちガイドベーンの開
放を行うが、これら一連の操作上での動作時間の短縮で
あった。Because of this feature of good responsiveness, it is used to generate power to supply electricity during peak load times. In addition, while electricity consumption is increasing year by year, the construction of power plants is rare, and it is increasingly necessary to operate hydroelectric power plants during peak load periods. More and more pump-type water turbine power plants are being constructed, which store water and generate electricity during peak load periods. As a result, it has become necessary to switch to rapid power generation at peak load times, and in order to shorten start-up time, the independent operating time of the inlet valve and guide vane has been rapidly shortened, going beyond the conventional concept. However, conventional startup time reduction is
Considering the risk of hydraulic vibrations caused by opening the inlet valve and guide vane when starting the water turbine, first fully open the side valve of the inlet valve and the main valve, and then open the guide vane, as shown in Figure 3 for slow startup. However, the aim was to shorten the operating time for a series of these operations.
このため、入口弁及びガイドべ−ンを夫々操作する駆動
源の操作能力に原因する操作時間並びにケーシング内水
圧の確立条件検出とそれら一連のシーケンス進行時間に
より１〜２分は必要で、それ以上の起動時間短縮には応
じきれなかった。〔発明の目的〕
この発明は上記事情に鑑みなされたもので、その目的と
するところは、水車の起動時間をさらに短縮することに
ある。For this reason, 1 to 2 minutes is required due to the operation time due to the operating ability of the drive source that operates the inlet valve and guide vane, the establishment conditions of the water pressure inside the casing, and the sequence progress time. We were unable to respond to requests for shorter startup times. [Object of the Invention] This invention was made in view of the above circumstances, and its object is to further shorten the starting time of a water turbine.
即ち、この発明の特徴とするところは、主弁と側弁を有
する入口弁と、水車ガイドベーンの制御方法において、
水車ケーシング内の水圧と水位と、ランナ及びドラフト
部分の水位を夫々検出し、この検出した水圧と水位が規
定値に達しているときは主弁とガイドベーンをほぼ同時
に開放すると共に主弁の全開時間をガイドベーンの全開
時間よりも速くして起動を行う水車と入口弁の制御方法
にある。That is, the features of the present invention include an inlet valve having a main valve and a side valve, and a method for controlling a water turbine guide vane.
The water pressure and water level inside the turbine casing and the water level in the runner and draft parts are detected respectively, and when the detected water pressure and water level reach the specified values, the main valve and guide vane are opened almost simultaneously, and the main valve is fully opened. The problem lies in the method of controlling the water turbine and inlet valve, which starts up faster than the guide vane's full opening time.
このようにケーシング、ランナ「ドラフト各部分の水圧
、水位の条件が規定値に達していれば、主弁とガイドベ
ーンを同時にあげ、かつ主弁の全開速度がガイドベーン
よりも遠いのでケーシング内が負圧になることがない。In this way, if the water pressure and water level conditions in each part of the casing and runner draft have reached the specified values, the main valve and guide vane can be raised at the same time, and the main valve's full opening speed is farther than the guide vane, so the inside of the casing can be raised. There is no negative pressure.
したがって水圧振動の発生もなく、迅速に起動が出来る
。〔発明の実施例〕
以下この発明の一実施例を第１図乃至第４図の図面によ
って説明する。Therefore, there is no occurrence of hydraulic vibration, and quick startup is possible. [Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings of FIGS. 1 to 4.
入口弁は主弁１と側弁２で構成されている。３はケーシ
ング９尊こ設けられた圧力スイッチ「４はケーシング９
に設けられた圧力スイッチ、５は水車の上カバーに設け
られた充水検出用のフロートスイッチ、６はガイドベー
ント８は水圧鉄管「 亀０はドラフトパイプ、重】はラ
ンナ、１２は主弁１、側弁２、ガイドベーン６を夫々操
作するサーボモータの液圧供給ラインである。The inlet valve is composed of a main valve 1 and a side valve 2. 3 is a pressure switch installed in the casing 9. 4 is a pressure switch installed in the casing 9.
5 is a float switch installed on the upper cover of the water turbine to detect water filling, 6 is a guide vent 8 is a penstock pipe, 0 is a draft pipe, 2 is a runner, 12 is a main valve 1. Hydraulic pressure supply line for the servo motor that operates the side valve 2 and guide vane 6, respectively.
ＶＳは主弁亀の急動作と綾動作を切換える弁１３のソレ
ノィド、翼４は弁１３のバイパス回路に設けられた絞り
弁、２１ｈａは主弁１の全開状態検出用ポジションスイ
ッチ、２亀Ｓは主弁１の開操作用ソレノィドｔ ３３斑
は側弁２の全開状態検出用ポジションスィッチトＢＳは
側弁２の開操作用ソレノイド、６５Ｓはガイドベーン６
の開操作用ソレノィドである。また、Ａは水車起動用条
件確立のスイッチ「Ｋは警報用ソレノィドである。この
構成においてｔ水車起動時には、水車起動用条件確立の
スイッチＡがＯＮする。VS is a solenoid for valve 13 that switches the main valve turtle between sudden action and traversing action, blade 4 is a throttle valve installed in the bypass circuit of valve 13, 21 ha is a position switch for detecting the fully open state of main valve 1, and 2 turtle S is a Solenoid t for opening operation of main valve 1 33 mark is position switch for detecting fully open state of side valve 2 BS is solenoid for opening operation of side valve 2 65S is guide vane 6
This is a solenoid for opening operation. Further, A is a switch for establishing conditions for starting the water turbine, and K is an alarm solenoid. In this configuration, when starting the water turbine, switch A for establishing conditions for starting the water turbine is turned on.
この時ランナー１が設けられているランナ室が排気、充
水が完了していればフロートスイッチ５がＯＮとなって
おり、同様にケーシング９の圧力及び充水が規定値に達
していると圧力スイッチ３とフロートスイッチ４もＯＮ
となっている。このためＢ系統により、主弁１の開操作
用ソレノィド２１Ｓとガイドベーン６の開操作用ソレノ
ィド６５Ｓが作動するので主弁１とガイドベーン６はほ
ぼ同時に開放される。また、主弁１の急動作用ソレノィ
ドＶＳも同時に動作して主弁１に運通する流路の弁１３
が開放されるので主弁１は急速動作に切換えられ、全開
時間がガイドベーン６の全開時間よりも速く急速起動さ
れ、発電運転が行われる。次に、ランナー１が設けられ
ているランナ室の排気「充水が完了しフロートスイッチ
５がＯＮとなってもＬケーシング９の圧力及び充水が規
定値に達していない場合は従来と同じ綾起動になり、圧
力スイッチ３とフロートスイッチ４はＯＦＦとなってい
るのでＣの系統で側弁２の開操作用ソレノィド母が作動
し、側弁２を開いて水圧鉄管８よりケーシング９内に充
水を行う。この充水によりケーシング９の圧力及び充水
が規定値に達すると主弁】の開操作用ソレノィド２１Ｓ
が作動しト主弁官が開放される。この主弁１の開放は主
弁１のサーボモータに蓮適する液圧流路に絞り１４が介
在されているのでゆっくりと行われる。主弁１が全開す
るとポジションスイッチ２１ｈａが働き、ガイドべ−ン
６の開操作用ソレノイド６５Ｓが作動され、ガイドべ−
ン６が開放される。しかして緩起動により発電運転が行
われる。また、水車の下流側の放水、点検などでドラフ
トパイプｉ鮫内の鱗気が未完の時はスイッチＡがＯＮ動
作してもフロートスイッチ５はＯＮ動作しないのでＤ系
統に進みも警報用ソレノィドＫが作動して警報を発する
。At this time, if the runner chamber in which the runner 1 is installed has been completely exhausted and filled with water, the float switch 5 is turned on, and similarly, if the pressure and water filling of the casing 9 have reached the specified values, the pressure is turned on. Switch 3 and float switch 4 are also ON.
It becomes. Therefore, the main valve 1 opening solenoid 21S and the guide vane 6 opening solenoid 65S are operated by the B system, so the main valve 1 and the guide vane 6 are opened almost simultaneously. In addition, the quick-acting solenoid VS of the main valve 1 also operates at the same time, and the valve 13 of the flow path communicating with the main valve 1 operates.
Since the main valve 1 is opened, the main valve 1 is switched to rapid operation, and the fully open time is rapidly started faster than the fully open time of the guide vane 6, and power generation operation is performed. Next, exhaust the runner chamber where the runner 1 is installed.If the pressure in the L casing 9 and the water filling have not reached the specified values even if the water filling is completed and the float switch 5 is turned on, the air flow is the same as before. Since the pressure switch 3 and float switch 4 are OFF, the solenoid for opening the side valve 2 is activated in the C system, opening the side valve 2 and filling the casing 9 from the penstock 8. When the pressure of the casing 9 and the water filling reach the specified values, the solenoid 21S for opening the main valve opens.
is activated and the main valve is released. This opening of the main valve 1 is carried out slowly because the throttle 14 is interposed in the hydraulic flow path suitable for the servo motor of the main valve 1. When the main valve 1 is fully opened, the position switch 21ha is activated, and the solenoid 65S for opening the guide vane 6 is activated.
6 is opened. Power generation operation is then performed by slow startup. In addition, if the scales in the draft pipe i are not completed due to water discharge or inspection on the downstream side of the water turbine, the float switch 5 will not be turned on even if switch A is turned on, so even if the flow goes to the D system, the alarm solenoid K will not be turned on. is activated and issues an alarm.
この発明によれば、従来１〜２分要していた水車の起動
時間を、ケーシング「ランナ〜ドラフトの各部分の水圧
−水位条件が規定値に達していれば１０〜２現物こ短縮
することができ「円滑かつ敏速に発電を行うことができ
る。According to this invention, the start-up time of a water turbine, which conventionally required 1 to 2 minutes, can be reduced by 10 to 2 minutes if the water pressure and water level conditions of each part of the casing, from the runner to the draft, reach the specified values. This allows for smooth and prompt power generation.
第蔓図乃至第４図はこの発明の一実施例を示すもので、
第翼図は入口弁と水車との構成図、第２図は制御のブロ
ックシーケンス「第３図はシーケンスのタイムチャート
ｔ第４図は制御用電気回路図である。
１……主弁、２……側弁、３……圧力スイッチ、４……
フロートスイツチ、５……フロートスイッチ「６……ガ
イドべ−ン、９……ケーシング、１０……ドラフトパイ
プ「 １１……ランナ、Ｖｓ・・・・・・主弁の急動作
用ソレノィド、２１ｓ……主弁の開操作用ソレノイド、
６５ｓ・・・…ガイドベーンの開操作用ソレノィド、Ｂ
ｓ・・・・・・側弁の開操作用ソレノィド。
多ｉ因
第２因
界３図
多チ図Figures 1 to 4 show one embodiment of this invention.
Figure 2 is a block diagram of the control block sequence, Figure 3 is a time chart of the sequence, and Figure 4 is an electric circuit diagram for control. 1... Main valve, 2 ...Side valve, 3...Pressure switch, 4...
Float switch, 5...Float switch 6...Guide vane, 9...Casing, 10...Draft pipe 11...Runner, Vs...Main valve sudden action solenoid, 21s... ...Solenoid for opening the main valve,
65s...Solenoid for guide vane opening operation, B
s: Solenoid for opening the side valve. Multi-i factor 2nd factor world 3 diagram Multi-chi diagram
Claims (1)
制御方法において、水車ケーシング内の水圧と水位と、
ランナ及びドラフト部分の水位を夫夫検出し、この検出
した水圧と水位が規定値に達しているときは主弁とガイ
ドベーンをほぼ同時に開放すると共に主弁の全開時間を
ガイドベーンの全開時間よりも速くして起動を行うこと
を特徴とする水車と入口弁の制御方法。1. In a method of controlling an inlet valve having a main valve and a side valve, and a water turbine guide vane, the water pressure and water level in the water turbine casing,
The water level in the runner and draft section is detected, and when the detected water pressure and water level reach the specified value, the main valve and guide vane are opened almost simultaneously, and the main valve's full opening time is longer than the guide vane's full opening time. A method of controlling a water turbine and an inlet valve characterized by starting the water turbine at a faster speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50016253A JPS605791B2 (en) | 1975-02-10 | 1975-02-10 | How to control the water turbine and inlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50016253A JPS605791B2 (en) | 1975-02-10 | 1975-02-10 | How to control the water turbine and inlet valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5191441A JPS5191441A (en) | 1976-08-11 |
| JPS605791B2 true JPS605791B2 (en) | 1985-02-14 |
Family
ID=11911388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50016253A Expired JPS605791B2 (en) | 1975-02-10 | 1975-02-10 | How to control the water turbine and inlet valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS605791B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7967398B2 (en) * | 2005-11-24 | 2011-06-28 | Bridgestone Corporation | Coreless rubber crawler |
-
1975
- 1975-02-10 JP JP50016253A patent/JPS605791B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5191441A (en) | 1976-08-11 |
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