JPS6345568Y2 - - Google Patents
Info
- Publication number
- JPS6345568Y2 JPS6345568Y2 JP1984180911U JP18091184U JPS6345568Y2 JP S6345568 Y2 JPS6345568 Y2 JP S6345568Y2 JP 1984180911 U JP1984180911 U JP 1984180911U JP 18091184 U JP18091184 U JP 18091184U JP S6345568 Y2 JPS6345568 Y2 JP S6345568Y2
- Authority
- JP
- Japan
- Prior art keywords
- guide vane
- operating lever
- rotary valve
- runner
- actuator
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 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
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は圧力逃し弁付貫流水車に関し、ガイド
ベーンを閉じたときの水圧上昇を緩和するよう工
夫したものである。[Detailed description of the invention] <Industrial field of application> The present invention relates to a once-through water turbine with a pressure relief valve, and is devised to alleviate the increase in water pressure when the guide vane is closed.
〈従来の技術〉
第４図は従来の貫流水車を示す。同図におい
て、１はランナ、２はランナ軸、３ａ，３ｂはガ
イドベーン、４はガイドベーン軸、５はガイドベ
ーン操作レバー、６はケーシング、７は仕切板、
８は入口管、９はカバー、１０は空気吹込弁、１
１は空気吹込弁カバー、１２は出口管、１３は軸
受である。入口管８を通つてきた水はガイドベー
ン３ａ，３ｂにより流量が調整されてランナ１に
入りこのランナ１を回転させる。ランナ１を流通
してきた水は出口管１２を通り排水される。<Prior art> Figure 4 shows a conventional once-through water turbine. In the figure, 1 is a runner, 2 is a runner shaft, 3a, 3b are guide vanes, 4 is a guide vane shaft, 5 is a guide vane operating lever, 6 is a casing, 7 is a partition plate,
8 is an inlet pipe, 9 is a cover, 10 is an air blowing valve, 1
1 is an air blowing valve cover, 12 is an outlet pipe, and 13 is a bearing. The water that has passed through the inlet pipe 8 enters the runner 1 with its flow rate adjusted by the guide vanes 3a and 3b, causing the runner 1 to rotate. Water flowing through the runner 1 is drained through an outlet pipe 12.
〈考案が解決しようとする問題点〉
かかる水車において、事故等で負荷が急に軽く
なり発電を停止するにはガイドベーン３ａ，３ｂ
を急激に閉じなければならない。これは、負荷し
や断の際にガイドベーン３ａ，３ｂをゆるやかに
閉じるとランナ１の回転速度が上昇し危険である
からである。このようにガイドベーン３ａ，３ｂ
を急激に閉じると入口管８内の水圧が急激に上昇
し新たな危険が生じる。水圧の急上昇の対策とし
ては、従来、入口管のバルブを閉める制圧器を設
置していた。しかし制圧器は、水圧急上昇時とい
う異常時にのみ動作するため錆び付きやすく動作
不良を生ずることが多く信頼性が極めて乏しい。
また制圧器は、水車とは別個に設置されるため、
配管や据付場所など余分な部品、作業、場所を必
要とする。更に手動式の制圧器では、対応が遅れ
るという問題がある。<Problems to be solved by the invention> In such a water turbine, in order to stop power generation when the load suddenly becomes lighter due to an accident, etc., guide vanes 3a and 3b are used.
must be closed abruptly. This is because if the guide vanes 3a and 3b are closed slowly during load shedding, the rotational speed of the runner 1 will increase, which is dangerous. In this way, the guide vanes 3a, 3b
If the inlet pipe 8 is suddenly closed, the water pressure within the inlet pipe 8 will rise rapidly, creating a new danger. Previously, as a countermeasure against sudden increases in water pressure, pressure regulators were installed to close the valves on the inlet pipes. However, pressure suppressors operate only in abnormal situations such as when the water pressure suddenly rises, so they are prone to rust and often malfunction, making them extremely unreliable.
In addition, since the pressure suppressor is installed separately from the water turbine,
Requires extra parts, work, and space, such as piping and installation space. Furthermore, manual pressure suppressors have the problem of delayed response times.
本考案は、上記従来技術に鑑み、信頼性よく水
圧上昇を緩和することのできる圧力逃し弁付貫流
水車を提供することを目的とする。 SUMMARY OF THE INVENTION In view of the above-mentioned prior art, an object of the present invention is to provide a once-through water turbine with a pressure relief valve that can reliably alleviate an increase in water pressure.
〈問題点を解決するための手段〉
上記目的を達成する本考案の構成は、ランナの
上流側にある入口管とランナの下流側にある出口
管とを分岐管で連通するとともに、ガイドベーン
を開閉操作するために回動する操作レバーにアク
チユエータを介して連結されており、操作レバー
によりガイドベーンを開いていくと閉じていきガ
イドベーンを閉じていくと開いていくロータリバ
ルブを前記分岐管に介装したことを特徴とする。<Means for Solving the Problems> The configuration of the present invention to achieve the above object is to communicate the inlet pipe on the upstream side of the runner and the outlet pipe on the downstream side of the runner through a branch pipe, and to connect the guide vane to the outlet pipe on the downstream side of the runner. A rotary valve is connected to the branch pipe via an actuator to an operating lever that rotates for opening and closing operations, and the rotary valve closes when the operating lever opens the guide vane and opens when the guide vane closes. It is characterized by having an interposition.
〈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。なお従来技術と同一部分には同一番号を付
し重複する説明は省略する。<Example> Hereinafter, an example of the present invention will be described in detail based on the drawings. Note that parts that are the same as those in the prior art are given the same numbers and redundant explanations will be omitted.
第１図は本考案の実施例を示す断面図であり、
第２図はその外観図である。両図に示すように、
ガイドベーン３に固定されたガイドベーン軸４に
は操作レバー２０が取り付けられている。アクチ
ユエータ２２はその基端がピン接手を介してクレ
ビス２４に連結されておりその先端がピン接手を
介して操作レバー２０に連結されている。そして
アクチユエータ２２が縮み操作レバー２０がＡ方
向に回動するとガイドベーン３が閉まり、アクチ
ユエータ２２が伸び操作レバー２０がＢ方向に回
動するとガイドベーン３が開く。分岐管２６は入
口管８と出口管１２とを連通しており、分岐管２
６にはロータリバルブ２８が介装されている。ロ
ータリバルブ２８は、第３図に特に抽出して示す
ように、通水路２８ａを有する弁体２８ｂを弁箱
２８ｃ内に納めたものであり、弁軸２８ｄを介し
て弁体２８ｂを回動させるようになつている。分
岐管２８の吐出側には案内２９が設けており、分
岐管２６を流れてきた水の流れ方向が出口管１２
の水の流れ方向と一致するようにしている。ロー
タリバルブ２８の弁軸２８ｄには操作レバー３０
が固定されており、更にこの操作レバー３０はア
クチユエータ３２を介して操作レバー２０に連結
されている。この場合、ガイドベーン３を閉じる
ためアクチユエータ２２により操作レバー２０を
Ａ方向に回動させたときには操作レバー３０がＡ
方向に回動してロータリバルブ２８が開き、逆に
ガイドベーン３を開くためアクチユエータ２２に
より操作レバー２０をＢ方向に回動させたときに
は操作レバー３０がＢ方向に回動してロータリバ
ルブ２８が閉じるように、ロータリバルブ２８が
備えられている。なお水車は水平架台３４により
支持されている。また入口管８内には異物除去用
の金網３６が張られている。 FIG. 1 is a sectional view showing an embodiment of the present invention,
FIG. 2 shows its external appearance. As shown in both figures,
An operating lever 20 is attached to a guide vane shaft 4 fixed to the guide vane 3. The actuator 22 has its base end connected to the clevis 24 via a pin joint, and its distal end connected to the operating lever 20 via the pin joint. When the actuator 22 retracts and the operating lever 20 rotates in the direction A, the guide vane 3 closes, and when the actuator 22 extends and the operating lever 20 rotates in the direction B, the guide vane 3 opens. The branch pipe 26 communicates the inlet pipe 8 and the outlet pipe 12.
6 is provided with a rotary valve 28. The rotary valve 28, as specifically shown in FIG. 3, has a valve body 28b having a water passage 28a housed in a valve box 28c, and rotates the valve body 28b via a valve shaft 28d. It's becoming like that. A guide 29 is provided on the discharge side of the branch pipe 28 so that the flow direction of the water flowing through the branch pipe 26 is directed to the outlet pipe 12.
The direction of water flow is consistent with that of the water flow direction. An operating lever 30 is attached to the valve shaft 28d of the rotary valve 28.
is fixed, and furthermore, this operating lever 30 is connected to the operating lever 20 via an actuator 32. In this case, when the actuator 22 rotates the operating lever 20 in the direction A to close the guide vane 3, the operating lever 30
When the actuator 22 rotates the operating lever 20 in the B direction to open the guide vane 3, the operating lever 30 rotates in the B direction and the rotary valve 28 opens. A rotary valve 28 is provided for closing. Note that the water turbine is supported by a horizontal frame 34. Further, a wire mesh 36 for removing foreign matter is placed inside the inlet pipe 8.
次に本実施例の動作を説明する。 Next, the operation of this embodiment will be explained.
まずはじめにガイドベーン３を開いていく動作
を説明する。この場合には、アクチユエータ３２
を固定した状態でアクチユエータ２２を伸ばして
いく。これにより操作レバー２０がＢ方向に回動
し、ガイドベーン３が開くとともにロータリバル
ブ２８が閉まる。アクチユエータ２２の操作速度
は水車の特性に合わせて決定する。 First, the operation of opening the guide vane 3 will be explained. In this case, the actuator 32
The actuator 22 is extended while being fixed. As a result, the operating lever 20 rotates in the direction B, the guide vane 3 opens, and the rotary valve 28 closes. The operating speed of the actuator 22 is determined according to the characteristics of the water turbine.
次にガイドベーン３を閉じていく動作を説明す
る。この場合、第１段階ではアクチユエータ３２
を固定した状態でアクチユエータ２２を縮めてい
く。これにより操作レバー２０がＡ方向に回動
し、ガイドベーン３が閉じるとともにロータリバ
ルブ２８が開く。したがつてガイドベーン３を急
に閉じても、水は分岐管２６を通つて流れるた
め、入口管８で水圧が規定値を越えることはな
い。もちろんこのように圧力上昇を逃がすことが
できるようにロータリバルブ２８の通水路２８ａ
の口径を設計している。ガイドベーン３が完全に
閉じると、第２段階としてアクチユエータ３２を
縮めて行きロータリバルブ２８を徐々に閉めてい
く。このときロータリバルブ２８を徐々に閉めて
いくため入口管８内の水圧が規定値を越えること
はない。 Next, the operation of closing the guide vane 3 will be explained. In this case, in the first stage the actuator 32
The actuator 22 is retracted while keeping it fixed. As a result, the operating lever 20 rotates in the A direction, the guide vane 3 closes, and the rotary valve 28 opens. Therefore, even if the guide vane 3 is suddenly closed, the water will flow through the branch pipe 26, so the water pressure in the inlet pipe 8 will not exceed a specified value. Of course, the water passage 28a of the rotary valve 28 is designed to release the pressure increase in this way.
The caliber is designed. When the guide vane 3 is completely closed, the actuator 32 is retracted in the second step, and the rotary valve 28 is gradually closed. At this time, since the rotary valve 28 is gradually closed, the water pressure inside the inlet pipe 8 does not exceed a specified value.
通常運転時において水圧が変化したときには、
アクチユエータ２２，３２を個別に作動せること
によりガイドベーン３及びロータリバルブ２８を
個別に制御し、これにより水車の速度変動率を抑
えることができる。したがつて速度変動率を抑え
る目的で従来用いられていたフライホイールが不
要となる。 When water pressure changes during normal operation,
By individually operating the actuators 22 and 32, the guide vane 3 and the rotary valve 28 can be controlled individually, thereby suppressing the speed fluctuation rate of the water turbine. Therefore, the flywheel conventionally used for the purpose of suppressing speed fluctuation rate becomes unnecessary.
ガイドベーン３が全開のときに、更に放水量を
増やしたいときには、アクチユエータ３２を伸ば
しロータリバルブ２８を開く。このように放水量
の調整ができるため多目的ダムに用いて便利であ
る。 When the guide vane 3 is fully open and it is desired to further increase the amount of water discharged, the actuator 32 is extended and the rotary valve 28 is opened. Since the amount of water released can be adjusted in this way, it is convenient for use in multipurpose dams.
本実施例ではガイドベーン３の開度調節をする
たびにロータリバルブ２８が動かされるのでロー
タリバルブ２８が錆び付くことはない。なお水車
に流入してきた砂などは分岐管２６内に貯り、ロ
ータリバルブ２８が開いたときに放出されるた
め、ランナ１にこれら異物が進入するのを防止す
ることができる。更に金網３６により木片や他の
異物の通過を防止することができる。 In this embodiment, since the rotary valve 28 is moved every time the opening degree of the guide vane 3 is adjusted, the rotary valve 28 will not rust. Note that sand and the like that have flowed into the water turbine are accumulated in the branch pipe 26 and are released when the rotary valve 28 is opened, so that it is possible to prevent these foreign substances from entering the runner 1. Furthermore, the wire mesh 36 can prevent wood chips and other foreign objects from passing through.
〈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、ガイドベーンを急激に閉じてもロ
ータリバルブが開いて圧力を逃がすことができ、
安全に且つ迅速にガイドベーンを閉じることがで
きる。また分岐バルブとロータリバルブ等を設け
るだけでよく、部品点数が少なく、更に据付場所
もさほど必要としない。<Effects of the invention> As specifically explained above in conjunction with the embodiments, according to the invention, even if the guide vane is suddenly closed, the rotary valve opens and the pressure can be released.
The guide vane can be closed safely and quickly. In addition, only a branch valve, a rotary valve, etc. need to be provided, so the number of parts is small, and furthermore, the installation space is not required.
第１図は本考案の実施例を示す断面図、第２図
はその外観図、第３図はロータリバルブを示す断
面図、第４図は従来の貫流水車を一部破断して示
す斜視図である。
図面中、１はランナ、３はガイドベーン、８は
入口管、１２は出口管、２０は操作レバー、２
２，３２はアクチユエータ、２６は分岐管、２８
はロータリバルブである。
Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is an external view thereof, Fig. 3 is a sectional view showing a rotary valve, and Fig. 4 is a partially cutaway perspective view of a conventional once-through water turbine. It is. In the drawing, 1 is a runner, 3 is a guide vane, 8 is an inlet pipe, 12 is an outlet pipe, 20 is an operating lever, 2
2, 32 are actuators, 26 is a branch pipe, 28
is a rotary valve.
Claims (1)
にある出口管とを分岐管で連通するとともに、ガ
イドベーンを開閉操作するために回動する操作レ
バーにアクチユエータを介して連結されており、
操作レバーによりガイドベーンを開いていくと閉
じていきガイドベーンを閉じていくと開いていく
ロータリバルブを前記分岐管に介装したことを特
徴とする圧力逃し弁付貫流水車。 The inlet pipe on the upstream side of the runner and the outlet pipe on the downstream side of the runner are connected through a branch pipe, and the guide vane is connected via an actuator to an operating lever that rotates to open and close the guide vane.
A once-through water turbine with a pressure relief valve, characterized in that the branch pipe is equipped with a rotary valve that closes when the guide vane is opened and opens when the guide vane is closed using an operating lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984180911U JPS6345568Y2 (en) | 1984-11-30 | 1984-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984180911U JPS6345568Y2 (en) | 1984-11-30 | 1984-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6195984U JPS6195984U (en) | 1986-06-20 |
| JPS6345568Y2 true JPS6345568Y2 (en) | 1988-11-25 |
Family
ID=30738470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984180911U Expired JPS6345568Y2 (en) | 1984-11-30 | 1984-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6345568Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5010974B2 (en) * | 2007-05-01 | 2012-08-29 | 株式会社酉島製作所 | Water hammer control device |
-
1984
- 1984-11-30 JP JP1984180911U patent/JPS6345568Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6195984U (en) | 1986-06-20 |
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