JPS54138928A - Runner - Google Patents

Runner

Info

Publication number
JPS54138928A
JPS54138928A JP4537578A JP4537578A JPS54138928A JP S54138928 A JPS54138928 A JP S54138928A JP 4537578 A JP4537578 A JP 4537578A JP 4537578 A JP4537578 A JP 4537578A JP S54138928 A JPS54138928 A JP S54138928A
Authority
JP
Japan
Prior art keywords
water
reduced
runner
swirling
boss
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
JP4537578A
Other languages
Japanese (ja)
Inventor
Seiji Miura
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
Original Assignee
Hitachi 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 filed Critical Hitachi Ltd
Priority to JP4537578A priority Critical patent/JPS54138928A/en
Publication of JPS54138928A publication Critical patent/JPS54138928A/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

Abstract

PURPOSE: To effectively reduce hydrauic vibration in partial loading operation of a water wheel by fitting vanes on the inner wall of a runner boss cover.
CONSTITUTION: Due to the revolution of a runner 5, the water inside a boss cover 7 flows out in the reverse direction to the swirling flow in the suction pipies 2 and 3 through a vane plate 11, and the swirling speed constituent of the water in the vicinity of a boss or of the flow in the vicinity of the center of the runner 5 in the close relation to the swirling flow is reduced. As the water from the center part of the boss cover 7 has a velocity component in the axial direction, the low pressure part generated by swirling flow is flowed out to the lower stream side. Accordingly, the rate of swirling is reduced, and also the generation of swirl center is reduced, and water pressure vibration can be reduced.
COPYRIGHT: (C)1979,JPO&Japio
JP4537578A 1978-04-19 1978-04-19 Runner Pending JPS54138928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4537578A JPS54138928A (en) 1978-04-19 1978-04-19 Runner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4537578A JPS54138928A (en) 1978-04-19 1978-04-19 Runner

Publications (1)

Publication Number Publication Date
JPS54138928A true JPS54138928A (en) 1979-10-27

Family

ID=12717513

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4537578A Pending JPS54138928A (en) 1978-04-19 1978-04-19 Runner

Country Status (1)

Country Link
JP (1) JPS54138928A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261787A (en) * 1992-01-17 1993-11-16 Impsa International, Inc. Water turbines and water flow transition members therefor
JP2011514474A (en) * 2008-03-05 2011-05-06 アルストム イドロ フランス Francis-type hydro turbine wheel with tip forming member and method for reducing fluctuations using the wheel
JP2011140886A (en) * 2010-01-05 2011-07-21 Toshiba Corp Hydraulic machine and runner thereof
JP2016056787A (en) * 2014-09-12 2016-04-21 株式会社東芝 Runner for hydraulic machinery

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261787A (en) * 1992-01-17 1993-11-16 Impsa International, Inc. Water turbines and water flow transition members therefor
JP2011514474A (en) * 2008-03-05 2011-05-06 アルストム イドロ フランス Francis-type hydro turbine wheel with tip forming member and method for reducing fluctuations using the wheel
JP2011140886A (en) * 2010-01-05 2011-07-21 Toshiba Corp Hydraulic machine and runner thereof
JP2016056787A (en) * 2014-09-12 2016-04-21 株式会社東芝 Runner for hydraulic machinery

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