JPS63170565A - Anti-freezing device for movable-blade water-turbine - Google Patents

Anti-freezing device for movable-blade water-turbine

Info

Publication number
JPS63170565A
JPS63170565A JP62000834A JP83487A JPS63170565A JP S63170565 A JPS63170565 A JP S63170565A JP 62000834 A JP62000834 A JP 62000834A JP 83487 A JP83487 A JP 83487A JP S63170565 A JPS63170565 A JP S63170565A
Authority
JP
Japan
Prior art keywords
runner
water
piston rod
runner boss
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.)
Pending
Application number
JP62000834A
Other languages
Japanese (ja)
Inventor
Takashi Ogawara
孝 大河原
Sadahiro Okawa
大川　貞博
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.)
Toshiba Engineering Corp
Original Assignee
Toshiba Engineering Corp
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 Toshiba Engineering Corp filed Critical Toshiba Engineering Corp
Priority to JP62000834A priority Critical patent/JPS63170565A/en
Publication of JPS63170565A publication Critical patent/JPS63170565A/en
Pending legal-status Critical Current

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

  • Hydraulic Turbines (AREA)

Abstract

PURPOSE:To prevent the freezing of fresh water sealed within a runner boss by providing a heater in the piston rod of a movable-blade water-turbine. CONSTITUTION:A cylindrical type heater 10 is housed within a hollow piston rod 2 in the main spindle 1 of a movable-blade water-turbine. The lower part of the piston rod 2 is located in a runner boss 4 containing sealed fresh water. When the operation of the movable-blade water-turbine is interrupted for a long time in the winter season or cold regions in order to check a runner vane 6, water is normally drained from the outer casing part of the runner boss 4. Therefore, the temperature of the outer part of the runner boss 4 easily drops to 0 deg.C or below. When the heater 10 in the piston rod 2 is electrically energized, however, fresh water in the runner boss 4 is free from freezing. Consequently, the fracture of the water-turbiue or the inoperability thereof due to the freezing of the runner boss 4 and the like can be prevented beforehand.

Description

【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明は可動羽根水車（カブラン水車）のランナボス内
部の凍結防止装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to an antifreeze device inside a runner boss of a movable impeller water turbine (Kabran water turbine).

（従来の技術） プロペラ水車にはランナベーンの角度を可変とした可動
羽根水車がある。この可動羽根水車はランナベーンのボ
ス内に主軸を貫通したピストンロッドを臨ませ、このピ
ストンロッドをサーボモータで上下動させることでラン
ナボス内に設けた可動機構を介してランナベーンの角度
を変化させ、負荷及び流速等に対応するようにしている
。(Prior Art) Propeller water turbines include movable impeller water turbines with variable runner vane angles. This movable impeller turbine has a piston rod that passes through the main shaft facing into the boss of the runner vane, and by moving this piston rod up and down with a servo motor, the angle of the runner vane is changed via a movable mechanism installed inside the runner boss, and the load is and flow velocity, etc.

そして、前記可動機構を収めたランナボス内には潤滑油
または清水を封入している。Lubricating oil or fresh water is sealed in the runner boss housing the movable mechanism.

（発明が解決しようとする聞届点） 上述した可動羽根水車のうち、ランナボス内に清水を封
入したタイプにあっては、ランナベーンが回転し清水が
攪拌されている間は問題はないが、ランナベーンが点検
の為に長期に渡り停止した場合には通常ランナボス外部
のケーシング部は抜水されるため、冬季或いは寒冷地に
あってはランナボス外部は容易に０℃以下まで温度が低
下し、ランナボス内部の清水が凍結する。(Problem to be solved by the invention) Among the above-mentioned movable impeller water turbines, in the type in which fresh water is sealed in the runner boss, there is no problem while the runner vane rotates and the fresh water is agitated, but the runner vane When the runner is stopped for a long period of time for inspection, water is normally drained from the casing section outside the runner boss, so in winter or in cold regions, the temperature outside the runner boss can easily drop to below 0℃, causing the inside of the runner boss to drop. The fresh water freezes.

そして清水は凍結することによって体積が膨張するため
、ランナボスが破裂したりランナベーンが外に押し出さ
れ、他の機器を損傷させることがある。When fresh water freezes, its volume expands, which can cause runner bosses to burst or runner vanes to be pushed out, damaging other equipment.

したがって、本発明はランナボス内に封入した清水が凍
結しない装置を提供することを目的とする。Therefore, an object of the present invention is to provide a device in which fresh water sealed in a runner boss does not freeze.

〔発明の構成〕[Structure of the invention]

（問題点を解決するための手段） 上記問題点を解決すべく本発明は、可動羽根水車のラン
ナボス内に臨むピストンロッド内にヒータを設けたもの
である。(Means for Solving the Problems) In order to solve the above problems, the present invention provides a heater in a piston rod facing into a runner boss of a movable impeller water turbine.

（作　用） ランナボス内に臨むピストンロッド内にヒータが設けら
れているため、ランナベーンを停止し、ランナボス外部
のケーシング内の水を抜いてもランナボス内に封入した
清水が凍結することがない。(Function) Since the heater is installed inside the piston rod facing inside the runner boss, the fresh water sealed inside the runner boss will not freeze even if the runner vane is stopped and the water inside the casing outside the runner boss is drained.

（実施例） 以下に本発明の実施例を添付図面に基いて説明する。(Example) Embodiments of the present invention will be described below with reference to the accompanying drawings.

第１図は本発明に係る凍結防止装置を適用した可動羽根
水車の要部を示す図、第２図は第１図の一部拡大断面図
であり、主軸１内には中空ピストンロッド２が摺動自在
に挿入され、このピストンロッド２の上端はサーボモー
タ３に連結され、このサーボモータ３の作動によりピス
トンロッド２が主軸１内を上下動する。FIG. 1 is a diagram showing the main parts of a movable impeller water turbine to which the antifreeze device according to the present invention is applied, and FIG. 2 is a partially enlarged cross-sectional view of FIG. The piston rod 2 is slidably inserted, and the upper end of the piston rod 2 is connected to a servo motor 3, and the operation of the servo motor 3 causes the piston rod 2 to move up and down within the main shaft 1.

ピストンロッド２の下部は主軸１から突出して主軸１の
下端に取付けられたランナボス４内に臨み、下端部はロ
ッドガイド５に支持されている。The lower part of the piston rod 2 protrudes from the main shaft 1 and faces into a runner boss 4 attached to the lower end of the main shaft 1, and the lower end is supported by a rod guide 5.

また、ランナボス４にはランナベーン６が取付けられ、
このランナベーン６と前記ピストンロッド２とをリンク
７を含む可動機構で連結し、更にランナボス４内には清
水を封入している。In addition, a runner vane 6 is attached to the runner boss 4,
The runner vane 6 and the piston rod 2 are connected by a movable mechanism including a link 7, and the runner boss 4 is filled with fresh water.

一方、ピストンロッド２の下端は第２図に示すようにボ
ルト８によってカバー９を固着し、ピストンロッド２内
には円筒型ヒータ１０を収納し、このヒータ１０上端に
は給電ケーブル１１が接続されている。On the other hand, a cover 9 is fixed to the lower end of the piston rod 2 with bolts 8 as shown in FIG. ing.

尚、ピストンロッド２内に円筒型ヒータ１０を収納する
にはボルト８を緩めてカバー９を外し、下方からヒータ
１０を挿入する。またピストンロッド２内への浸水を防
ぐためにピストンロッド２下端とカバー９との間にパツ
キン等を介在させることが好ましい。In order to house the cylindrical heater 10 inside the piston rod 2, loosen the bolts 8, remove the cover 9, and insert the heater 10 from below. Further, in order to prevent water from entering the piston rod 2, it is preferable to interpose a gasket or the like between the lower end of the piston rod 2 and the cover 9.

（発明の効果） 以上に説明したように本発明によれば、可動羽根水車の
ピストンロッド内にヒータを設けたため、ヒータに通電
することによりランナボス内に封入した清水を加熱する
ことができ、冬季或いは寒冷地において、ランナボス内
の清水が凍結することがなくランナボス等の破損及び運
転不能を防止することができる。(Effects of the Invention) As explained above, according to the present invention, since the heater is provided in the piston rod of the movable impeller water turbine, the fresh water sealed in the runner boss can be heated by energizing the heater, and in winter Alternatively, in a cold region, the fresh water in the runner boss does not freeze, thereby preventing damage to the runner boss and the like and preventing operation.

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

第１図は本発明に係る凍結防止装置を適用した水車の要
部を示す図、第２図は第１図の一部拡大断面図である。 １・・・主軸、２・・・ピストンロッド、３・・・サー
ボモータ、４・・・ランナボス、６・・・ランナベーン
、１０・・・ヒータ。 出願人代理人　　佐　　藤　　−雄 嘉　１　図FIG. 1 is a diagram showing the main parts of a water turbine to which the antifreeze device according to the present invention is applied, and FIG. 2 is a partially enlarged sectional view of FIG. 1. DESCRIPTION OF SYMBOLS 1...Main shaft, 2...Piston rod, 3...Servo motor, 4...Runner boss, 6...Runner vane, 10...Heater. Applicant's agent Yuyoshi Sato 1 Figure

Claims (1)

【特許請求の範囲】[Claims] 水を封入したランナボス内にランナベーンの角度を変化
させるピストンロッドを臨ませた可動羽根水車において
、前記ピストンロッド内にはランナボス内に封入された
水を加熱するヒータを設けたことを特徴とする可動羽根
水車の凍結防止装置。A movable impeller water turbine in which a piston rod for changing the angle of a runner vane faces a runner boss filled with water, characterized in that a heater for heating water sealed in the runner boss is provided in the piston rod. Freeze prevention device for impeller water turbines.
JP62000834A 1987-01-06 1987-01-06 Anti-freezing device for movable-blade water-turbine Pending JPS63170565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62000834A JPS63170565A (en) 1987-01-06 1987-01-06 Anti-freezing device for movable-blade water-turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62000834A JPS63170565A (en) 1987-01-06 1987-01-06 Anti-freezing device for movable-blade water-turbine

Publications (1)

Publication Number Publication Date
JPS63170565A true JPS63170565A (en) 1988-07-14

Family

ID=11484648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62000834A Pending JPS63170565A (en) 1987-01-06 1987-01-06 Anti-freezing device for movable-blade water-turbine

Country Status (1)

Country Link
JP (1) JPS63170565A (en)

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