US3507603A - Filling a two-stage or multi-stage hydraulic turbomachine with water - Google Patents

Filling a two-stage or multi-stage hydraulic turbomachine with water Download PDF

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Publication number
US3507603A
US3507603A US847492A US3507603DA US3507603A US 3507603 A US3507603 A US 3507603A US 847492 A US847492 A US 847492A US 3507603D A US3507603D A US 3507603DA US 3507603 A US3507603 A US 3507603A
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United States
Prior art keywords
water
pressure
filling
stage
pump
Prior art date
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Expired - Lifetime
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US847492A
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English (en)
Inventor
Hermann Cardinal Von Widdern
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
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Escher Wyss AG
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    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/004—Priming of not self-priming pumps
    • F04D9/005—Priming of not self-priming pumps by adducting or recycling liquid
    • 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

Definitions

  • a two-stage or multi-stage hydraulic turbomachine for example a turbine, centrifugal pump or reversible pump-turbine, after its runner has previously been rotating in air, is filled with water while running by supplying at least part of the filling water at a point situated between two stages of the turbomachine.
  • Hydraulic turbomachines such as turbines, e.g. Francis turbines, Kaplan turbines or combined turbines, as well as centrifugal pumps or pump-turbines, coupled to a motor-generator, are sometimes operated for a considerable time under no-load conditions, for example in phaseshifter operation of the plant.
  • the water is then forced out of the machine housing by admitting air into the latter with the turbomachine shut off on the pressure side, so that the runner or runners of the machine rotate in air. On resumption of normal operation, the air must then be removed again'and the turbomachine filled with water.
  • a boster pump is incorporated in the filling pipe, this boster pump serving to raise the pressure of the filling Water to such an amount that it surpasses the pressure due to centrifugal action of the water rotating with the pump runner and thus allows to completely till the hydraulic machine from its pressure side.
  • the aim of this invention is to provide a process for filling a still running two-stage or multi-stage hydraulic turbomachine with water, after operationin air under noload condition, which allows on one hand to complete the filling operation in a relatively short time and on the other hand to avoid undersired variations in delivery pressure and power consumption.
  • This process according to the invention, consists in that at least part of the filling water is supplied between two stages of the hydraulic machine.
  • the invention further relates to an apparatus for carrying out the process according to the invention and consists in that at least at one point located between two stages of the hydraulic machine, a closable filling conduit is arranged to open into the flow space of the turbomachine.
  • the accompanying drawing shows in an axial logitudinal section an embodiment of a hydraulic turbomachine for carrying out the process according to the invention.
  • the turbomachine is a two-stage reversible pump-turbine, with reference to which the invention will now be described by way of example.
  • the pump-turbine has two runner wheels 1 and 2 arranged on a common shaft 3 which is journalled in-two bearings 4 and 5 and directly coupled to a motor-generator 7.
  • a penstock 18 in which is provided a main valve 14 and flows through an inlet pipe 8 and the spiral casing 9 of the pump-turbine into the vane system 10 of the runner wheel 1 and then into the vane system 11 of the runner wheel 2, from which it finally discharges through a draft tube 12 to the tail water.
  • the water is removed from the machine casing by introducing air under pressure through pipe-lines having closure members 13 and 19, respectievly, after the inlet pipe 8 has been closed by the main valve 14, and if necessary, a discharge pipe 21 leading from the spiral casing 9 to the draft tube 12 has been opened.
  • the water level in draft tube 12 will thereby be lowered by such an amount that the rotating runner wheels 1 and 2 are out of contact with the water as illustrated in the drawing.
  • the filling water is introduced into the flow space of the pump-turbine at one or more suitable points situated between the two stages comprising the runner wheels 1 and 2, respectievly, for example at a point 16.
  • a filling pipe 15 having a built in valve 17 is provided, which establishes communication between point 116 and the penstock 18 which, in turbine operation of the hydraulic machine, supplies the driving water to the inlet pipe 8. Opening of the valve 17 allows water to flow from penstock 18 to point 16 of the machine casing, since the pressure prevailing at point 16 is lower than that prevailing in penstock 18.
  • the pressure of the water arriving from penstock 18 corresponds at least to the water pressure produced by centrifugal action in runner wheel 2 situated downstream of the point 16, so that the blading 11 will be completely filled with water from its upstream side.
  • blading 10 of the runner wheel 1 receives water from its downstream side whereby, how ever, pressure variations are substantially avoided, since the water quantity arriving per unit of time through the filling pipe 15 is relatively small.
  • the pressure of the filling water supplied to point 16 of the turbomachine shall surpass the pressure produced by centrifugal action of the Water body rotating with runner wheel 2, which pressure may be considerably lower than the pressure prevailing in penstock 18.
  • filling pipe '15 instead of being connectedto penstock 18 may be connected to a source of lower pressure than that prevailing in penstock 18.
  • filling water may also be introduced at other points of the hydraulic turbomachine either upstream or downstream of the runner.
  • the process according to the invention is not limited to the usewith machines having a horizontal axis but may also be employed with machines having a vertical shaft.
  • the process also is not limited to pump-turbines but may be carried out with any of the hydraulic turbo.- machines mentioned at the beginning.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydraulic Turbines (AREA)
  • Control Of Water Turbines (AREA)
US847492A 1966-03-10 1969-07-14 Filling a two-stage or multi-stage hydraulic turbomachine with water Expired - Lifetime US3507603A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH346966A CH444085A (de) 1966-03-10 1966-03-10 Verfahren zum Füllen einer zwei- oder mehrstufigen hydraulischen Turbomaschine mit Wasser, und Vorrichtung zur Durchführung des Verfahrens

Publications (1)

Publication Number Publication Date
US3507603A true US3507603A (en) 1970-04-21

Family

ID=4256626

Family Applications (1)

Application Number Title Priority Date Filing Date
US847492A Expired - Lifetime US3507603A (en) 1966-03-10 1969-07-14 Filling a two-stage or multi-stage hydraulic turbomachine with water

Country Status (5)

Country Link
US (1) US3507603A (de)
AT (1) AT279518B (de)
CH (1) CH444085A (de)
ES (1) ES337354A1 (de)
FR (1) FR1510562A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977808A (en) * 1972-09-02 1976-08-31 Klein, Schanzlin & Becker Aktiengesellschaft Method and means for abruptly terminating the flow of fluid in closed circulating systems of nuclear reactor plants or the like
DE3203354A1 (de) * 1981-02-03 1982-08-12 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Mehrstufige wasserkraftmaschine und steuerverfahren dafuer
DE3203442A1 (de) * 1981-02-03 1982-10-21 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Steuerverfahren fuer eine mehrstufige wasserkraftmaschine
US4406577A (en) * 1979-10-29 1983-09-27 Tokyo Shibaura Denki Kabushiki Kaisha Multi-stage hydraulic machine and a method of operating same
US4832642A (en) * 1985-10-08 1989-05-23 Thompson Marine Propulsion Systems, Inc. Outboard boat propulsion installation
US5458457A (en) * 1991-10-04 1995-10-17 Ebara Corporation Turbomachine
RU2403452C2 (ru) * 2008-12-16 2010-11-10 Государственное образовательное учреждение высшего профессионального образования "Южно-Российский государственный технический университет (Новочеркасский политехнический институт)" Способ регулирования режима работы водоотливной установки

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5781164A (en) * 1980-11-07 1982-05-21 Toshiba Corp Exhaust equipment for multi-stage hydraulic machine
DE102011015336A1 (de) * 2011-03-28 2012-01-12 Voith Patent Gmbh Vorrichtung und Verfahren zur Diagnose von Luftleckagen hydraulische Maschinen
DE102013222956A1 (de) * 2013-11-12 2014-10-30 Voith Patent Gmbh Nebenleitung für eine Strömungsmaschine
DE102020115918A1 (de) 2020-06-17 2021-07-22 Voith Patent Gmbh Anlage mit einer hydraulischen Maschine mit horizontaler Welle und Betriebsverfahren

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB343385A (de) * 1929-04-23 1931-02-19 Georg Weyland
FR909087A (fr) * 1944-03-14 1946-04-29 Sulzer Ag Soufflante de petite puissance
US3237565A (en) * 1962-10-15 1966-03-01 English Electric Co Ltd Hydraulic pumps and reversible pump turbines
US3238534A (en) * 1962-10-15 1966-03-01 English Electric Co Ltd Hydraulic pumps and reversible pump turbines
US3264485A (en) * 1962-10-02 1966-08-02 Hitachi Ltd Methods and apparatus for preventing water hammer in tailrace or suction lines
US3282563A (en) * 1966-01-17 1966-11-01 Baldwin Lima Hamilton Corp Hydraulic machines
US3309057A (en) * 1964-03-11 1967-03-14 Hitachi Ltd Method of starting operation of pumps and pump turbines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB343385A (de) * 1929-04-23 1931-02-19 Georg Weyland
FR909087A (fr) * 1944-03-14 1946-04-29 Sulzer Ag Soufflante de petite puissance
US3264485A (en) * 1962-10-02 1966-08-02 Hitachi Ltd Methods and apparatus for preventing water hammer in tailrace or suction lines
US3237565A (en) * 1962-10-15 1966-03-01 English Electric Co Ltd Hydraulic pumps and reversible pump turbines
US3238534A (en) * 1962-10-15 1966-03-01 English Electric Co Ltd Hydraulic pumps and reversible pump turbines
US3309057A (en) * 1964-03-11 1967-03-14 Hitachi Ltd Method of starting operation of pumps and pump turbines
US3282563A (en) * 1966-01-17 1966-11-01 Baldwin Lima Hamilton Corp Hydraulic machines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977808A (en) * 1972-09-02 1976-08-31 Klein, Schanzlin & Becker Aktiengesellschaft Method and means for abruptly terminating the flow of fluid in closed circulating systems of nuclear reactor plants or the like
US4406577A (en) * 1979-10-29 1983-09-27 Tokyo Shibaura Denki Kabushiki Kaisha Multi-stage hydraulic machine and a method of operating same
US4547123A (en) * 1979-10-29 1985-10-15 Tokyo Shibaura Denki Kabushiki Kaisha Multi-stage hydraulic machine and method of operating same
DE3203354A1 (de) * 1981-02-03 1982-08-12 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Mehrstufige wasserkraftmaschine und steuerverfahren dafuer
DE3203442A1 (de) * 1981-02-03 1982-10-21 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Steuerverfahren fuer eine mehrstufige wasserkraftmaschine
US4412779A (en) * 1981-02-03 1983-11-01 Tokyo Shibaura Denki Kabushiki Kaisha Control method for multi-stage hydraulic machine
US4537558A (en) * 1981-02-03 1985-08-27 Tokyo Shibaura Denki Kabushiki Kaisha Multi-stage hydraulic machine and control method for a multi-stage hydraulic machine
US4832642A (en) * 1985-10-08 1989-05-23 Thompson Marine Propulsion Systems, Inc. Outboard boat propulsion installation
US5458457A (en) * 1991-10-04 1995-10-17 Ebara Corporation Turbomachine
RU2403452C2 (ru) * 2008-12-16 2010-11-10 Государственное образовательное учреждение высшего профессионального образования "Южно-Российский государственный технический университет (Новочеркасский политехнический институт)" Способ регулирования режима работы водоотливной установки

Also Published As

Publication number Publication date
AT279518B (de) 1970-03-10
CH444085A (de) 1967-09-15
ES337354A1 (es) 1968-06-01
FR1510562A (fr) 1968-01-19

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