ES294055A1 - Limiting the speed of the starting turbine of a pump-turbine or accumulator pump - Google Patents

Limiting the speed of the starting turbine of a pump-turbine or accumulator pump

Info

Publication number
ES294055A1
ES294055A1 ES0294055A ES294055A ES294055A1 ES 294055 A1 ES294055 A1 ES 294055A1 ES 0294055 A ES0294055 A ES 0294055A ES 294055 A ES294055 A ES 294055A ES 294055 A1 ES294055 A1 ES 294055A1
Authority
ES
Spain
Prior art keywords
turbine
runner
water
starting
speed
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.)
Expired
Application number
ES0294055A
Other languages
Spanish (es)
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.)
Sulzer Escher Wyss AG
Original Assignee
Escher Wyss AG
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 Escher Wyss AG filed Critical Escher Wyss AG
Publication of ES294055A1 publication Critical patent/ES294055A1/en
Expired 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
    • F03B15/06—Regulating, i.e. acting automatically
    • F03B15/18—Regulating, i.e. acting automatically for safety purposes, e.g. preventing overspeed
    • 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
    • F03B15/005—Starting, also of pump-turbines
    • 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
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0027—Varying behaviour or the very pump
    • F04D15/0044—Varying behaviour or the very pump by introducing a gas
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/91—Reversible between pump and motor use

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Water Turbines (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Hydraulic Turbines (AREA)

Abstract

The runner 1 of a hydraulic pump or pumpturbine connected to a synchronous electrical machine 4 is run up to speed for its pumping function by a starting turbine 9. At starting the water level in the suction tube 6 is lowered to a point 8 and water from the inlet 11 of the starting turbine 9 is sprayed through nozzles 19 into the runner chamber 15 to exert a braking torque on the runner 1 and prevent overspeeding of the set. An adjustable throttle valve 20 controls the water flowing to the nozzles 19 and a non-return valve 21 prevents flowback through line 18 when the runner 1 has reached operating speed and the turbine 9 has been shut-off. Additional braking torque is obtained by water fed to the runner chamber 15 through throttle and non-return valves 25, 26 respectively. In a modification, the braking water is not taken from the starting turbine inlet 11 but is supplied from a separate pressurized source. In this case a shut-off valve in the braking water line is connected to operate simultaneously with the starting turbine shut-off valves 13, 14. In a further modification, Fig. 2 (not shown) the starting turbine runner (27) has a centrifugal pump impeller (28) integral therewith. The impeller (28) communicates with the turbine draft tube (30) through a passage (31) in the runner hub having a non-return valve (32) which opens at a speed above the working speed of the machine being started but below the runaway speed. Thus water is pumped back from the draft tube (30) to the turbine inlet (29) to exert a braking torque on the runner.
ES0294055A 1963-01-18 1963-11-30 Limiting the speed of the starting turbine of a pump-turbine or accumulator pump Expired ES294055A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH61663A CH400043A (en) 1963-01-18 1963-01-18 Method and device for limiting the speed of the launch turbine of a pump turbine or storage pump

Publications (1)

Publication Number Publication Date
ES294055A1 true ES294055A1 (en) 1964-01-16

Family

ID=4191136

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0294055A Expired ES294055A1 (en) 1963-01-18 1963-11-30 Limiting the speed of the starting turbine of a pump-turbine or accumulator pump

Country Status (7)

Country Link
US (1) US3185440A (en)
AT (1) AT244881B (en)
CH (1) CH400043A (en)
ES (1) ES294055A1 (en)
GB (1) GB1074690A (en)
LU (1) LU45028A1 (en)
NO (1) NO116318B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1148079A (en) * 1966-06-17 1969-04-10 English Electric Co Ltd Improvements relating to pumps and reversible pump turbines
JPS58148278A (en) * 1982-02-26 1983-09-03 Toshiba Corp Method and device for drainage of guide vane leakage in a reversible hydraulic machine
FR2669968B1 (en) * 1990-11-30 1995-01-20 Sithe METHOD FOR REGULATING THE ROTATION SPEED OF A HYDRAULIC TURBINE, AND DEVICE FOR CARRYING OUT SAID METHOD.
US6971843B2 (en) * 2003-06-25 2005-12-06 General Electric Canada Inc. Hydraulic turbine draft tube with enhanced dissolved oxygen
DE102010050001A1 (en) * 2010-11-02 2012-05-03 Voith Patent Gmbh Pump in Francis design for a hydroelectric power station
CN103498749B (en) * 2013-09-27 2016-03-02 河海大学 A kind of small-scale mixed-flow pump turbine for low water head pumped storage power station
CN112576429B (en) * 2021-01-13 2021-09-24 宁夏隆丰园林景观工程有限公司 Underwater hydroelectric generation device with overspeed protection function
DE102022101640B3 (en) * 2022-01-25 2023-01-19 Voith Patent Gmbh Pump for a hydroelectric power station

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1307703A (en) * 1919-06-24 Paul sagbebg and eelif mikdeltholt
US810955A (en) * 1904-03-09 1906-01-30 Andreas Lund Means for regulating turbines.
GB277433A (en) * 1926-06-18 1927-09-19 English Electric Co Ltd Improvements connected with hydraulic turbines
US2781831A (en) * 1952-09-11 1957-02-19 Thompson Prod Inc Pumping assembly

Also Published As

Publication number Publication date
NO116318B (en) 1969-03-03
AT244881B (en) 1966-01-25
US3185440A (en) 1965-05-25
GB1074690A (en) 1967-07-05
LU45028A1 (en) 1964-02-17
CH400043A (en) 1965-09-30

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