JPS57159965A - Once-through water turbine - Google Patents

Once-through water turbine

Info

Publication number
JPS57159965A
JPS57159965A JP56043950A JP4395081A JPS57159965A JP S57159965 A JPS57159965 A JP S57159965A JP 56043950 A JP56043950 A JP 56043950A JP 4395081 A JP4395081 A JP 4395081A JP S57159965 A JPS57159965 A JP S57159965A
Authority
JP
Japan
Prior art keywords
runner
runner side
water
side chamber
compressed air
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
JP56043950A
Other languages
Japanese (ja)
Inventor
Masami Toshima
Masahiro Yamabe
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 JP56043950A priority Critical patent/JPS57159965A/en
Publication of JPS57159965A publication Critical patent/JPS57159965A/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
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/06—Bearing arrangements
    • 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)
  • Hydraulic Turbines (AREA)

Abstract

PURPOSE:To reduce power of friction loss in a runner side board and improve efficiency of a water turbine, by sealing compressed air to a runner side chamber, discharging water partially from the runner side chamber and forming an air layer in the runner side chamber. CONSTITUTION:At starting of a water turbine, after water in a flow line partially passes a runner gas 8B to flow into a runner side chamber 10, if compressed air is sealed to the runner side chamber 10 by a compressed air sealing device 15, the water in the runner side chamber 10 is pressed to the peripheral side by pressing force of the sealed compressed air and rotary energy transmitted from a runner side board 4, and the water passes through runner gaps 8B, 9B to flow into a draft tube 2. Accordingly, power of friction loss caused to the runner side board 4 is reduced to improve efficiency of the water turbine.
JP56043950A 1981-03-27 1981-03-27 Once-through water turbine Pending JPS57159965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56043950A JPS57159965A (en) 1981-03-27 1981-03-27 Once-through water turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56043950A JPS57159965A (en) 1981-03-27 1981-03-27 Once-through water turbine

Publications (1)

Publication Number Publication Date
JPS57159965A true JPS57159965A (en) 1982-10-02

Family

ID=12677980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56043950A Pending JPS57159965A (en) 1981-03-27 1981-03-27 Once-through water turbine

Country Status (1)

Country Link
JP (1) JPS57159965A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011174380A (en) * 2010-02-23 2011-09-08 Chotaro Takano Hydraulic rotary mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011174380A (en) * 2010-02-23 2011-09-08 Chotaro Takano Hydraulic rotary mechanism

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