JPS55137370A - Method for stopping main engine at breakdown of deteriorated parts on water turbine or reversible pump turbine - Google Patents

Method for stopping main engine at breakdown of deteriorated parts on water turbine or reversible pump turbine

Info

Publication number
JPS55137370A
JPS55137370A JP4431879A JP4431879A JPS55137370A JP S55137370 A JPS55137370 A JP S55137370A JP 4431879 A JP4431879 A JP 4431879A JP 4431879 A JP4431879 A JP 4431879A JP S55137370 A JPS55137370 A JP S55137370A
Authority
JP
Japan
Prior art keywords
guide vane
normally operated
main engine
damaged
inlet 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
JP4431879A
Other languages
Japanese (ja)
Inventor
Nobusuke Takagi
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 JP4431879A priority Critical patent/JPS55137370A/en
Publication of JPS55137370A publication Critical patent/JPS55137370A/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 prevent vibration of guide vanes of a reversible pump turbine by means that if a deteriorated guide vane is damaged and ready to turn in the closing direction, other normally operated guide vane may be kept opened.
CONSTITUTION: A guide vane and an inlet valve are simultaneously closed on the basis of instruction of a main engine stop caused by factors except a damage of a deteriorated parts. In operation, if a deteriorated parts are damaged, the closing action of the inlet valve is stopped and that opening of the valve at the point of the damage is kept. On the other hand, immediately after fully closing motion, another guide vane normally operated is opened, having the inlet valve fully closed from the rest of the closing motion. After current is shut off, the guide vane normally operated is fully closed. It is not until the revolutional speed of the main engine is low enough that a mechanical brake is used to stop the engine. As the flow rate of water leaking from the damaged guide vane is lower than that through another normally operated guide vane, water hummer is reduced and the guide vane can be prevented from vibration.
COPYRIGHT: (C)1980,JPO&Japio
JP4431879A 1979-04-13 1979-04-13 Method for stopping main engine at breakdown of deteriorated parts on water turbine or reversible pump turbine Pending JPS55137370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4431879A JPS55137370A (en) 1979-04-13 1979-04-13 Method for stopping main engine at breakdown of deteriorated parts on water turbine or reversible pump turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4431879A JPS55137370A (en) 1979-04-13 1979-04-13 Method for stopping main engine at breakdown of deteriorated parts on water turbine or reversible pump turbine

Publications (1)

Publication Number Publication Date
JPS55137370A true JPS55137370A (en) 1980-10-27

Family

ID=12688129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4431879A Pending JPS55137370A (en) 1979-04-13 1979-04-13 Method for stopping main engine at breakdown of deteriorated parts on water turbine or reversible pump turbine

Country Status (1)

Country Link
JP (1) JPS55137370A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111350628A (en) * 2020-01-17 2020-06-30 武汉大学 Method for preventing axial flow type turbine pump effect from lifting by using guide vane closing rule

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111350628A (en) * 2020-01-17 2020-06-30 武汉大学 Method for preventing axial flow type turbine pump effect from lifting by using guide vane closing rule

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