JPS60113072A - Bulb type water wheel access pipe - Google Patents

Bulb type water wheel access pipe

Info

Publication number
JPS60113072A
JPS60113072A JP58219453A JP21945383A JPS60113072A JP S60113072 A JPS60113072 A JP S60113072A JP 58219453 A JP58219453 A JP 58219453A JP 21945383 A JP21945383 A JP 21945383A JP S60113072 A JPS60113072 A JP S60113072A
Authority
JP
Japan
Prior art keywords
water
access pipe
valve
pipe
access
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.)
Pending
Application number
JP58219453A
Other languages
Japanese (ja)
Inventor
Akio Oguchi
小口 昭夫
Isao Yanagida
柳田 勲
Kenro Nakano
中野 権郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Hitachi Power Engineering Co Ltd
Original Assignee
Hitachi Ltd
Hitachi Power Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd, Hitachi Power Engineering Co Ltd filed Critical Hitachi Ltd
Priority to JP58219453A priority Critical patent/JPS60113072A/en
Publication of JPS60113072A publication Critical patent/JPS60113072A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/10Submerged units incorporating electric generators or motors
    • F03B13/105Bulb groups
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)

Abstract

PURPOSE:To enhance the efficiency of a bulb type water wheel, by enabling an access pipe to be removed from water stream. CONSTITUTION:An upper guide bearing 22 and a lower guide bearing 23 for supporting an access pipe 20 are fitted in a through-hole formed in a hatch cover 21 so that the access pipe 20 may be removed upon operation of a water wheel. Upon removal and installation of the access pipe 20, the other ends of piston rods 33 are secured to the hatch cover 21, and a fluid servo-motor device is so operated that servo-cylinders 24 alone move up and down. When pressure is fed from feed pipes 26, the access pipe 20 is lowered, but when pressure is fed from feed pipes 25, the access pipe 20 is raised. Vibration caused by vortex stream downstream of the access pipe 20 may be eliminated.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明はバルブ水車のアクセスパイプの構造改善に係り
、特に、アクセスパイプの分解組立に好適な装置に関す
る。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an improvement in the structure of an access pipe of a valve water turbine, and particularly to an apparatus suitable for disassembling and assembling the access pipe.

〔発明の背景〕[Background of the invention]

バルブ水車は流水中に水車及び発電機を内蔵した卵型の
バルブを設置し、流水により水車を回転し発電する方式
である。この方式は機械装置で全て流水中のバルブ内に
あることが他の一般的な地上に建設される水力発電所と
大きく異なる点である。
A valve turbine is a method in which an egg-shaped valve with a built-in water wheel and generator is installed in flowing water, and the flowing water rotates the water wheel and generates electricity. This method differs greatly from other conventional hydroelectric power plants built on land in that all mechanical equipment is located inside valves submerged in flowing water.

第1図は従来のバルブ水車の断面図を示す。導水路1.
外側ステーリング2.外側ガイドベンケース3.デスチ
ャージリング4.ドラフトチューブライナ5より形成さ
れる水路を圧力水が導水路1からドラフトチューブライ
ナ5の方向に流れる。
FIG. 1 shows a cross-sectional view of a conventional valve water turbine. Headrace 1.
Outer stayling2. Outer guide case 3. Death Charge Ring 4. Pressure water flows through a waterway formed by the draft tube liner 5 from the water conduit 1 toward the draft tube liner 5.

流水中にはガイドベーン6が配置され、流量調整をして
いる。ガイドベーン6を通過した圧力水はランナベーン
7に作用し、ランナベーン7は水のエネルギにより回転
させられる。ランナベーン7はランナボス8に組み込ま
れ、ランナボス8はシャフト9にボルトにより固定され
ている。シャフト9には同様にボルトにより、発電機ロ
ータ10が固定されており、水のエネルギによりランナ
ベーン7の回転が発電機ロータ10を回転させ発電する
仕組みとなっている。シャフト9は中空となっており、
ランナベーン7の操作する圧油管11が通っている。こ
の圧油管11は発電機ロータ10を貫通し圧油導入装置
12に接続されている。
A guide vane 6 is placed in the flowing water to adjust the flow rate. The pressure water that has passed through the guide vane 6 acts on the runner vane 7, and the runner vane 7 is rotated by the energy of the water. The runner vane 7 is assembled into a runner boss 8, and the runner boss 8 is fixed to a shaft 9 with bolts. A generator rotor 10 is similarly fixed to the shaft 9 with bolts, and the rotation of the runner vane 7 by the energy of water rotates the generator rotor 10 to generate electricity. The shaft 9 is hollow,
A pressure oil pipe 11 operated by the runner vane 7 passes through it. This pressure oil pipe 11 passes through the generator rotor 10 and is connected to a pressure oil introduction device 12.

ランナボス8はランナベーン7の操作機購が内蔵されて
おり、シャツ891発電機ロータ10.圧油導入装置1
2等は発側ステーリング13.ステータフレーム14.
サブトップカバ15.トップカバ16等から成るバルブ
内に内蔵される。バルブ水車全体はステーベン17及び
コンクリートペデスタル18により外壁と固定されてい
る。
The runner boss 8 has a built-in operating device for the runner vane 7, and the shirt 891 generator rotor 10. Pressure oil introduction device 1
2nd prize goes to the departure side stalling 13. Stator frame 14.
Sub top cover 15. It is built into a valve consisting of a top cover 16 and the like. The entire valve turbine is fixed to the outer wall by a steven 17 and a concrete pedestal 18.

前述のように、バルブ水車は流水中にあるバルブ内に機
械装置が内蔵されているため、機械装置のメンテナンス
時にはバルブ内に人間が入るために、外部とバルブを連
絡する連絡通路、即ち、アクセスパイプが必要となる。
As mentioned above, valve turbines have mechanical devices built into the valves that are submerged in flowing water, so in order for people to enter the valves during maintenance of the mechanical devices, there is a communication passage that connects the valves with the outside, that is, access. A pipe is required.

従来のバルブ水車−は第1図、第2図に示すように、ハ
ツチカバー21とバルブの先端部であるトップカバー1
6間にアクセスパイプ20を設けてこの中をメンテナン
スのための人間が昇降し、バルブ内に出入りできるよう
にしである。尚、ランナベーン操作用サーボモータに圧
油を供給する圧油導入装置へ圧油を導く圧油管27、ラ
ンナベーン開度を外部制御装置に伝え2ランナベーンレ
ターン、その他電気計器用リード線、ケーブル等の部品
を外部大気へ取り出すために、このアクセスパイプ2o
の内部を通すようにされている。尚、バルブはトップカ
バー16、サブトップカバー15.ステータフレーム1
4、内側ステーリング13等の総称である。ここで従来
構造のjアクセスパイプはトップカバー16と一体に製
作された下部アクセスパイプ28に上部アクセスパイプ
20をボルト結合し、流水室を封水するハツチカバーに
支持され、かつ、パイプ軸方向をフリーにするようシー
ルされている。
As shown in Figures 1 and 2, a conventional valve water turbine has a hatch cover 21 and a top cover 1 which is the tip of the valve.
An access pipe 20 is provided between the valves 6 and 6, through which maintenance personnel can ascend and descend to enter and exit the valve. In addition, a pressure oil pipe 27 that guides pressure oil to the pressure oil introduction device that supplies pressure oil to the servo motor for operating the runner vane, a 2-runner vane return that conveys the runner vane opening degree to an external control device, and other parts such as lead wires and cables for electric meters. This access pipe 2o is used to extract the
It is designed to pass through the inside of the The valves are top cover 16 and sub-top cover 15. Stator frame 1
4. It is a general term for the inner stay ring 13, etc. Here, in the J access pipe of the conventional structure, the upper access pipe 20 is bolted to the lower access pipe 28 manufactured integrally with the top cover 16, and is supported by a hatch cover that seals the water chamber, and is free in the axial direction of the pipe. It's sealed to keep it safe.

このアクセスパイプ20.28には次のような問題があ
り、改善が必要とされている。
The access pipes 20 and 28 have the following problems and need to be improved.

(1)機械振動を発生する各部軸受、電磁振動を生ずる
ステータ29.ロータ30等を支持しているバルブに接
続され、かつ、水流アンバランス、水流抵抗等を直接に
受けて振動するバルブそのものに取付けられているため
、アクセスパイプは激しい振動、場合によっては共振を
生じ破損を生ずる等の問題があった。
(1) Bearings in various parts that generate mechanical vibrations, stator 29 that generates electromagnetic vibrations. The access pipe is connected to the valve that supports the rotor 30, etc., and is attached to the valve itself, which vibrates due to direct water flow unbalance, water flow resistance, etc., so the access pipe can cause severe vibration and, in some cases, resonance. There were problems such as damage.

(2)更に、バルブは運転、停止の繰返しの度毎に内部
温度上昇による軸方向、円周方向に膨張を伴なうため、
この変位がアクセスパイプ20゜28に過大な熱応力を
ひき起すことになり、問題とされる。
(2) Furthermore, each time the valve is operated and stopped, it expands in the axial and circumferential directions due to the internal temperature rise.
This displacement causes excessive thermal stress on the access pipe 20.degree. 28, which is problematic.

(3)アクセスパイプ20.28は常時流水中に突出し
て設置されているので、運転中には水流の抵抗を生じ、
流体抗力による曲げ変位9曲げ応力髪生じると共に、流
体摩擦、衝突損失を発生しており、水車効率特性を阻害
している。
(3) Since the access pipes 20 and 28 are installed so as to protrude into flowing water at all times, resistance to water flow occurs during operation.
Bending displacement due to fluid drag causes bending stress, as well as fluid friction and collision loss, which impairs the efficiency of the water turbine.

尚、この流体的損失は最大流延を流している最大出力運
転時には水車の有効落差の2〜5%程度にも達し、結局
この流体損失は水車効率を低下させることになり、非常
に大きな問題となる。
In addition, this fluid loss reaches about 2 to 5% of the effective head of the turbine during maximum output operation with maximum flow, and this fluid loss ultimately reduces the efficiency of the turbine, which is a very serious problem. becomes.

(4)アクセスパイプは流水中で水流の抵抗を受けてお
り、この下流では水流を大きく乱す渦を生じ、更に、下
流のランナベーンへ渦流となって流入するので、水車効
率特性を阻害するのみならず、アクセスパイプ自身が自
ら発生した渦流により異常振動を誘起することがあり問
題とされている。
(4) The access pipe is subjected to water flow resistance in flowing water, and downstream of this, a vortex is generated that greatly disturbs the water flow, and further flows into the downstream runner vane as a vortex, which only impedes the efficiency characteristics of the water turbine. First, there is a problem in that the access pipe itself may induce abnormal vibrations due to the eddy current generated by itself.

このように、従来構造のアクセスパイプについては多く
の、しかも、大きな問題点がある。それ故、何らかの改
善が必要とされている。
As described above, there are many and major problems with the access pipe of the conventional structure. Therefore, some improvement is needed.

〔発明の目的〕[Purpose of the invention]

本発明の目的は効率特性のすぐれた、強度的、振動的に
も信頼性の高いバルブ水車構造を提供するにある。
An object of the present invention is to provide a valve water turbine structure with excellent efficiency characteristics and high reliability in terms of strength and vibration.

〔発明の概要〕[Summary of the invention]

本発明の要点は (1)バルブ水車のアクセスパイプにおいて、導水路内
の水を抜水することなく、水車運転中でもこれを組立、
分解できるようにしたこと。
The main points of the present invention are (1) the access pipe of a valve water turbine can be assembled even while the water turbine is in operation without draining the water in the headrace;
Made it possible to disassemble it.

(2)水車運転中にはアクセスパイプを流水中から取外
しすることにより、運転中の水車効率特性を向上させ、
又、振動的、強度的にも信頼性の高いものにすること。
(2) By removing the access pipe from the flowing water during operation of the turbine, the efficiency characteristics of the turbine during operation are improved;
Also, it should be highly reliable in terms of vibration and strength.

(3)アクセスパイプを水車運転中でも取付、取外しが
可能なように、これを分解、組立できる各種の装置を取
付けたこと。
(3) Various devices have been installed to disassemble and assemble the access pipe so that it can be installed and removed even while the water turbine is in operation.

にある。It is in.

〔発明の実施例〕[Embodiments of the invention]

第3図、第4図は本発明の実施例を示すものである。ハ
ツチカバー21にはアクセスパイプ20が水車運転中に
も着脱できるように、上下にスライド可能なように貫通
孔を設け、この貫通孔にはアクセスパイプ20を支持す
る上ガイド軸受22゜下ガイド軸受23をもっている。
FIGS. 3 and 4 show embodiments of the present invention. The hatch cover 21 is provided with a through hole so that it can slide up and down so that the access pipe 20 can be attached and detached even during operation of the water turbine, and the through hole has an upper guide bearing 22 and a lower guide bearing 23 that support the access pipe 20. have.

上ガイド軸受22、下ガイド軸受23には第6図に示す
ように、封水バッキング31でアクセスパイプ外面を封
水する構造となっている。上ガイド軸受21と下ガイド
軸受23の間隔りは流水抵抗により生じる荷重、モーメ
ントに対し、応力、撓みを一定レベルに押えるよう充分
な距離を与えるようにする。アクセスパイプ20の取付
、取外しには、他端ピストンロッド33がハツチカバー
21に固定され、サーボシリしダー24が上下する仕組
みの流体圧サーボモータにより行なわれる。流体圧サー
ボモータには圧力供給管25.26が取付しており、供
給管26より圧力を供給すればアクセスパイプ20は降
下し、供給管25より圧力を供給すればアクセスパイプ
20は上昇する。常時の水車運転中は第3図の状態で運
転する。
As shown in FIG. 6, the upper guide bearing 22 and the lower guide bearing 23 have a structure that seals the outer surface of the access pipe with a water sealing backing 31. The spacing between the upper guide bearing 21 and the lower guide bearing 23 is determined to provide a sufficient distance to suppress stress and deflection to a constant level against loads and moments caused by resistance to flowing water. Attachment and detachment of the access pipe 20 is carried out by a fluid pressure servo motor having a piston rod 33 at the other end fixed to the hatch cover 21 and a servo cylinder 24 moving up and down. Pressure supply pipes 25 and 26 are attached to the fluid pressure servo motor, and when pressure is supplied from the supply pipe 26, the access pipe 20 is lowered, and when pressure is supplied from the supply pipe 25, the access pipe 20 is raised. During regular operation of the water turbine, it operates as shown in Figure 3.

第4図は流体圧サーボモータの供給管26より圧力を供
給し、アクセスパイプ20を1〜ツブカバー16を密着
させた状態を示している。
FIG. 4 shows a state in which pressure is supplied from the supply pipe 26 of the fluid pressure servo motor and the access pipe 20 is brought into close contact with the knob cover 16.

第5図はトップカバー16とアクセスパイプ20の密着
した状態の拡大図である。トップカバー16には常時の
水車運転中は盲カバー17を取付けてバルブ内への流水
の浸入を防止するようにしている。もし運転中にメンテ
ナンスのためにバルブ内に人が入り込む必要がある場合
は、それを内含するようにアクセスパイプ20をサーボ
モータを操作させて降下させる。アクセスパイプ20に
は、降下過程で流水が噴出せぬよう盲カバー28を取付
けているが、これは充水状態にアクセスパイプ20を降
下させた後の内部に取り残された水を抜きとるためもの
である。即ち、充水状態でアクセスパイプ20を降下さ
せた場合、空間Aには水が封じ込められる。この水は抜
水用銅管29により外部へ排出される。空間A部の抜水
後、盲カバー18を分解し、更に、盲カバー27を分解
する手順となる。このようにしてバルブ内に人の出入り
が可能となる。尚、アクセスノ(イブ20をトップカバ
ー16より取外す場合の手順は、盲カバー27を取付け
、次に、盲カバー28を取付は後、アクセスパイプ20
を前述と同様、サーボモータを操作させて上昇させるの
である。このように、アクセスパイプ20は人の出入り
専用となるため、従来、アクセスパイプ20を利用して
圧油管及びランナベーンレタン19等はコンクリ−1〜
ペデスタル18内を貫通して外部に引出すようにすれば
問題はない。
FIG. 5 is an enlarged view of the top cover 16 and the access pipe 20 in close contact with each other. A blind cover 17 is attached to the top cover 16 during normal operation of the water turbine to prevent water from entering the valve. If it is necessary for a person to enter the valve for maintenance during operation, the access pipe 20 is lowered by operating the servo motor so as to include it. A blind cover 28 is attached to the access pipe 20 to prevent water from spouting out during the descending process, but this is to remove water left inside after the access pipe 20 is lowered to a full water state. It is. That is, when the access pipe 20 is lowered in a water-filled state, water is contained in the space A. This water is discharged to the outside through a copper pipe 29 for drainage. After draining the water from the space A, the blind cover 18 is disassembled, and then the blind cover 27 is disassembled. In this way, it is possible for people to enter and exit the valve. The procedure for removing the access pipe 20 from the top cover 16 is to install the blind cover 27, then install the blind cover 28, and then remove the access pipe 20.
As mentioned above, the servo motor is operated to raise it. In this way, since the access pipe 20 is used exclusively for people to enter and exit, conventionally, the access pipe 20 was used to connect the pressure oil pipes and the runner vane recess 19, etc.
There is no problem as long as it passes through the inside of the pedestal 18 and is pulled out to the outside.

尚、アクセスパイプ20と1−ツブカッ<−16との密
着封水部には、第7図に示すように中空ゴムシールリン
グ34内に流体圧を送入し、その圧力が膨張、そのケー
ス外へ押し出させる密着シールするシールメカニズムを
設置する必要がある。このシールメカニズムに代わる他
のシール方法でアクセスパイプの外部から遠隔操作でき
るものであればよい。又、このシール面のトップカッ<
−16側の平面は長期の運転で土砂による摩耗、腐食等
の影響を受けない硬度の高い耐食材料で製作される。
In addition, as shown in FIG. 7, fluid pressure is fed into the hollow rubber seal ring 34 to seal the watertight portion between the access pipe 20 and the 1-tube cut <-16, and the pressure expands and flows out of the case. It is necessary to install a sealing mechanism that extrudes and seals tightly. Any other sealing method may be used instead of this sealing mechanism as long as it can be operated remotely from outside the access pipe. Also, the top cup of this seal surface is
The -16 side plane is made of a highly hard and corrosion-resistant material that is not affected by wear and corrosion caused by earth and sand during long-term operation.

アクセスパイプ20の流水中への降下に際しては、大き
な流水;抵抗力に逆って正しい位置を保ち、はぼ垂直を
保持しつつ円滑に降下させることが肝要であるが、これ
は上ガイド軸受22.下ガイド軸受23に加えてアクセ
スピットの垂直壁面にアクセスパイプ20の垂直方向運
動をガイドする平面ガイド36の設置が有効である。(
第8図)又、場合によっては、これらガイド軸受には良
好なスムーズな摺動を行なうために、潤滑油の供給を行
なうことも必要となろう。
When the access pipe 20 is lowered into flowing water, it is important to maintain the correct position against the resistance force of the large flowing water and descend smoothly while maintaining the vertical position. .. In addition to the lower guide bearing 23, it is effective to install a planar guide 36 on the vertical wall of the access pit to guide the vertical movement of the access pipe 20. (
(FIG. 8) In some cases, it may be necessary to supply lubricating oil to these guide bearings in order to ensure smooth sliding.

尚、アクセスパイプは人間専用となるため、従来構造で
この空間を利用していたランナベーンレタン、圧油管等
は、バルブを支持しているコンクリートペデスタル18
の内部に埋込む事で問題なく配置可能である。
In addition, since the access pipe is for human use only, the runner vane, pressure oil pipe, etc. that used this space in the conventional structure will be moved to the concrete pedestal 18 that supports the valve.
It can be placed without any problem by embedding it inside.

本実施例によれば、アクセスパイプ2oが流水中に存在
しないため、バルブ本体に対しアクセスパイプ20から
の流水により振動の伝達は無くなり、機器に対する大1
]な信頼性向上となる。又、水の流れを阻害する障害物
が無くなり、水車の効率向上にも寄与する等の効果があ
る。尚、本発明を技術的に可能とした背景には次のよう
なものがある。
According to this embodiment, since the access pipe 2o does not exist in flowing water, there is no transmission of vibration to the valve body due to the flowing water from the access pipe 20, and a large amount of vibration is transmitted to the equipment.
] Improved reliability. In addition, there are no obstacles obstructing the flow of water, which contributes to improving the efficiency of the water turbine. The background that made the present invention technically possible is as follows.

(1)アクセスパイプ20が人の出入り専用となり従来
アクセスパイプ内を利用していた圧油管及びランナベー
ンレタン等が通らなくなるため、アクセスパイプ20を
小型化することができ、流水より受ける流水抵抗を軽減
できたこと。
(1) The access pipe 20 is used exclusively for the entry and exit of people, and the pressure oil pipes, runner vanes, etc. that conventionally used inside the access pipe no longer pass through it, so the access pipe 20 can be made smaller and the resistance to flowing water from flowing water is reduced. What I was able to do.

(2)強大な流水抵抗に打勝ってアクセスパイプを降下
させるため流体圧を使用したサーボモータを使用できる
ようになったこと。尚これらが、スペース的にも充分に
配置が可能となった小口径高圧シリンダの実用化が可能
になったこと。
(2) It has become possible to use a servo motor that uses fluid pressure to overcome the strong resistance of flowing water and lower the access pipe. These developments have made it possible to put into practical use small-bore high-pressure cylinders that can be arranged in sufficient space.

(3)強大な水流抗力に抵抗し、曲げ変位を充分に小さ
くできるよう各部に摺動ガイド軸受を配したこと。
(3) Sliding guide bearings are arranged in each part to resist the strong drag of water flow and to sufficiently reduce bending displacement.

等がある。etc.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、アクセスパイプの下流の渦流からうけ
る振動を排除することができ、流水中の障害物が無くな
り水軍の効率特性の改善が図れる。
According to the present invention, it is possible to eliminate vibrations caused by the eddy flow downstream of the access pipe, eliminating obstacles in the flowing water, and improving the efficiency characteristics of the water force.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来の構造のバルブ水車の断面図、第2図は第
1図の部分詳細図、第3図、第4図は本発明の一実施例
の断面図、第5図、第6図、第7図、第8図は本発明の
実施例の部分詳細図である。 20・・・アクセスパイプ、21・・・ハツチカバー、
22・・・上ガイド、23・・・下ガイド、24・・・
流体圧モーボモータシリンダ、25・・・圧力供給管、
26・・・圧力供給管、27・・・圧油管。 代理人 弁理士 高橋明夫 隼 1図 $3図 ¥:、4図 1!75図 ′f′16図 2
Fig. 1 is a sectional view of a conventional valve water turbine, Fig. 2 is a detailed view of a part of Fig. 1, Figs. 3 and 4 are sectional views of an embodiment of the present invention, and Figs. 5 and 6. 7 and 8 are partially detailed views of embodiments of the invention. 20...access pipe, 21...hatch cover,
22... Upper guide, 23... Lower guide, 24...
Fluid pressure motor cylinder, 25...pressure supply pipe,
26...Pressure supply pipe, 27...Pressure oil pipe. Agent Patent Attorney Akio Takahashi Hayabusa 1 Figure $ 3 Figure ¥:, 4 Figure 1! 75 Figure 'f' 16 Figure 2

Claims (1)

【特許請求の範囲】 1、流水中に設置されている発電機、水車、前記発電機
を流水から遮断するため水中に裾付けられるバルブ、こ
のバルブを固定するための裾伺は固定ベース、前記バル
ブの中に圧油管、ケーブル等の挿入、保守のために流水
中に設置されるアクセスパイプ、このアクセスパイプを
大気中に取出し支持、封水するためのハツチカバーから
なるバルブ水車に於いて。 充水中もしくは水車運転中にも抜水する事なく前記アク
セスパイプを取付け、取外しするよう分解組立可能なよ
うにした事を特徴とするバルブ水車アクセスパイプ。 2、特許請求の範囲第1項において、水車運転中、前記
バルブのアクセスホールを封水する封水カバーとこの封
水カバーの外周側外面に相手の前記アクセスパイプ下端
面と接触、封水するシート面と、前記アクセスパイプ下
端面に取付けた封水装置と、前記アクセスパイプ下端の
内孔盲カバーと、前記アクセスパイプを水中に吊り下ろ
すためにハツチカバーに設けた上ガイド軸受、下ガイド
軸受及び前記アクセスパイプをバルブのシート面に密着
するまで降下させるための流体圧を使用した可能装置と
からなることを特徴とするバルブ水卓アクセスバーrプ
[Scope of Claims] 1. A generator or a water turbine installed in flowing water, a valve attached to the water to isolate the generator from the flowing water, a fixed base for fixing the valve; In valve water turbines, which consist of insertion of pressure oil pipes, cables, etc. into the valve, an access pipe installed in flowing water for maintenance, and a hatch cover for supporting and sealing the access pipe by taking it out into the atmosphere. A valve water turbine access pipe characterized in that the access pipe can be disassembled and reassembled so that the access pipe can be installed and removed without draining water even during filling or operation of the water turbine. 2. In Claim 1, during operation of the water turbine, a water-sealing cover seals the access hole of the valve, and the outer surface of the water-sealing cover comes into contact with the lower end surface of the access pipe to seal the water-sealing water-sealing cover. a seat surface, a water sealing device attached to the lower end surface of the access pipe, an inner hole blind cover at the lower end of the access pipe, an upper guide bearing and a lower guide bearing provided on the hatch cover for suspending the access pipe into water; and a device that uses fluid pressure to lower the access pipe until it comes into close contact with the seat surface of the valve.
JP58219453A 1983-11-24 1983-11-24 Bulb type water wheel access pipe Pending JPS60113072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58219453A JPS60113072A (en) 1983-11-24 1983-11-24 Bulb type water wheel access pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58219453A JPS60113072A (en) 1983-11-24 1983-11-24 Bulb type water wheel access pipe

Publications (1)

Publication Number Publication Date
JPS60113072A true JPS60113072A (en) 1985-06-19

Family

ID=16735653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58219453A Pending JPS60113072A (en) 1983-11-24 1983-11-24 Bulb type water wheel access pipe

Country Status (1)

Country Link
JP (1) JPS60113072A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2478364A (en) * 2009-04-13 2011-09-07 Alexander Gokhman Bulb turbine with mixed flow runner
JP2023529902A (en) * 2020-06-10 2023-07-12 杭州林黄丁新能源研究院有限公司 Large-scale tidal power generator and its assembly platform

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2478364A (en) * 2009-04-13 2011-09-07 Alexander Gokhman Bulb turbine with mixed flow runner
JP2023529902A (en) * 2020-06-10 2023-07-12 杭州林黄丁新能源研究院有限公司 Large-scale tidal power generator and its assembly platform

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