JPS57188776A - Water thrust reducing method at transition time of pump water wheel - Google Patents

Water thrust reducing method at transition time of pump water wheel

Info

Publication number
JPS57188776A
JPS57188776A JP56072278A JP7227881A JPS57188776A JP S57188776 A JPS57188776 A JP S57188776A JP 56072278 A JP56072278 A JP 56072278A JP 7227881 A JP7227881 A JP 7227881A JP S57188776 A JPS57188776 A JP S57188776A
Authority
JP
Japan
Prior art keywords
pressure chamber
balance tube
water
back pressure
water thrust
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
JP56072278A
Other languages
Japanese (ja)
Inventor
Haruo Iijima
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 JP56072278A priority Critical patent/JPS57188776A/en
Publication of JPS57188776A publication Critical patent/JPS57188776A/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
    • F03B11/063—Arrangements for balancing axial thrust
    • 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 the water thrust of a pump water wheel during a transition period, by arranging an auxiliary balance tube between a runner back pressure chamber and a draft pipe additionally and parallelly to a balance tube arranged for reducing the water thrust at the time when a transient phenomenon such as interception of the load of the pump water wheel or the like occurs. CONSTITUTION:A back pressure chamber 1 is connected to a lateral pressure chamber 3 through a balance tube 4, and a back pressure chamber 2 is connected to a draft pipe 9 through a balance tube 6 and further through a balance tube 5 in parallel on which a normally closed automatic valve 10 is interposed. When a transient phenomonon occurs, as the automatic valve 10 is opened and the runner back pressure chamber 2 and the draft pipe 9 are connected through by the balance tubes 6, 5, a downward water thrust during the transition period can be restrained to the normal water thrust or below.
JP56072278A 1981-05-15 1981-05-15 Water thrust reducing method at transition time of pump water wheel Pending JPS57188776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56072278A JPS57188776A (en) 1981-05-15 1981-05-15 Water thrust reducing method at transition time of pump water wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56072278A JPS57188776A (en) 1981-05-15 1981-05-15 Water thrust reducing method at transition time of pump water wheel

Publications (1)

Publication Number Publication Date
JPS57188776A true JPS57188776A (en) 1982-11-19

Family

ID=13484654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56072278A Pending JPS57188776A (en) 1981-05-15 1981-05-15 Water thrust reducing method at transition time of pump water wheel

Country Status (1)

Country Link
JP (1) JPS57188776A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588352A (en) * 1984-04-12 1986-05-13 Kabushiki Kaisha Toshiba Multistage hydraulic machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588352A (en) * 1984-04-12 1986-05-13 Kabushiki Kaisha Toshiba Multistage hydraulic machine

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