JPS57195877A - Controller for francis water wheel - Google Patents

Controller for francis water wheel

Info

Publication number
JPS57195877A
JPS57195877A JP56079728A JP7972881A JPS57195877A JP S57195877 A JPS57195877 A JP S57195877A JP 56079728 A JP56079728 A JP 56079728A JP 7972881 A JP7972881 A JP 7972881A JP S57195877 A JPS57195877 A JP S57195877A
Authority
JP
Japan
Prior art keywords
runner
floating
flow path
pressure chamber
reducing valve
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
JP56079728A
Other languages
Japanese (ja)
Inventor
Junichi Kawamura
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 Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56079728A priority Critical patent/JPS57195877A/en
Publication of JPS57195877A publication Critical patent/JPS57195877A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B15/00—Controlling
    • F03B15/02—Controlling by varying liquid flow
    • F03B15/04—Controlling by varying liquid flow of turbines
    • 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

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

Abstract

PURPOSE:To achieve the safe operation by coupling the control piping through the reducing valve and the automatic valve to the upper cover while coupling the branch water passed through the reducing valve through the automatic valve to the back pressure chamber of the runner. CONSTITUTION:The control piping of the casing 4 is connected while being branched into the upper cover 5 covering the upper section of the flow path 7 and the upper section of the runner back pressure chamber 11. Under the steady state operation, the pressure P1 in the flow path 7 between the guide vane 3 and the runner 2 is higher than the pressure P2 in the suction pipe 8 thereby the force functioning on the runner 2 will be in the direction of the gravity thus to cause no floating. But when the vane 3 is closed abruptly the water in the flow path 7 is sucked by the suction pipe 8 to lower the pressure, thereby the force in the opposite direction from the gravity will function to produce the floating. Since P2>P1 at this time, if the automatic valve 15 is opened to feed the high pressure water in the casing 4 through the reducing valve 14 into the runner back pressure chamber 11, the relation P1>P2 will be recovered to prevent the floating.
JP56079728A 1981-05-26 1981-05-26 Controller for francis water wheel Pending JPS57195877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56079728A JPS57195877A (en) 1981-05-26 1981-05-26 Controller for francis water wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56079728A JPS57195877A (en) 1981-05-26 1981-05-26 Controller for francis water wheel

Publications (1)

Publication Number Publication Date
JPS57195877A true JPS57195877A (en) 1982-12-01

Family

ID=13698256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56079728A Pending JPS57195877A (en) 1981-05-26 1981-05-26 Controller for francis water wheel

Country Status (1)

Country Link
JP (1) JPS57195877A (en)

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