JPS5677566A - Method of starting pump of hydraulic machine - Google Patents

Method of starting pump of hydraulic machine

Info

Publication number
JPS5677566A
JPS5677566A JP15392680A JP15392680A JPS5677566A JP S5677566 A JPS5677566 A JP S5677566A JP 15392680 A JP15392680 A JP 15392680A JP 15392680 A JP15392680 A JP 15392680A JP S5677566 A JPS5677566 A JP S5677566A
Authority
JP
Japan
Prior art keywords
discharge pressure
runner
valve
open
runner discharge
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
JP15392680A
Other languages
Japanese (ja)
Inventor
Nobusuke Takagi
Mitsuo Takase
Katsumi Senoo
Takashi Ito
Toshihiko Koseki
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 JP15392680A priority Critical patent/JPS5677566A/en
Publication of JPS5677566A publication Critical patent/JPS5677566A/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

  • Control Of Water Turbines (AREA)

Abstract

PURPOSE: To efficiently perform pump starting with little vibration by presetting the operational sequence of respective parts required for starting the pump, such as a side valve, a main valve and guide vanes and successively operating these parts in response to the increase in the runner discharge pressure.
CONSTITUTION: After the rotation of a runner has reached a predetermined rotational speed, the runner discharge pressure increases, and the first runner discharge pressure in established. Upon this occasion, the side valve 13 of an inlet valve beings to open. Even during the opening operation of the side valve 13 the seal 14 of the inlet valve beings to open by the establishment of the second runner discharge pressure, and a main valve 8 begins to open under a condition that the downstream side has fully opened. Even during the opening operation of this main valve, if the runner discharge pressure reaches a pressure sufficient for pumping-up, and a third runner discharge pressure is established, movable guide vanes 6 begin to open, and driving of the pump is started.
COPYRIGHT: (C)1981,JPO&Japio
JP15392680A 1980-11-04 1980-11-04 Method of starting pump of hydraulic machine Pending JPS5677566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15392680A JPS5677566A (en) 1980-11-04 1980-11-04 Method of starting pump of hydraulic machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15392680A JPS5677566A (en) 1980-11-04 1980-11-04 Method of starting pump of hydraulic machine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP50069626A Division JPS51146647A (en) 1975-06-11 1975-06-11 Pump starting of hydraulic machinery

Publications (1)

Publication Number Publication Date
JPS5677566A true JPS5677566A (en) 1981-06-25

Family

ID=15573094

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15392680A Pending JPS5677566A (en) 1980-11-04 1980-11-04 Method of starting pump of hydraulic machine

Country Status (1)

Country Link
JP (1) JPS5677566A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708594A (en) * 1984-12-21 1987-11-24 Hitachi, Ltd. Method of starting a variable-speed pump turbine or a variable speed pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708594A (en) * 1984-12-21 1987-11-24 Hitachi, Ltd. Method of starting a variable-speed pump turbine or a variable speed pump

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