US20140301823A1 - Hydraulic machine having an intake manifold located at the top - Google Patents

Hydraulic machine having an intake manifold located at the top Download PDF

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Publication number
US20140301823A1
US20140301823A1 US14/342,816 US201214342816A US2014301823A1 US 20140301823 A1 US20140301823 A1 US 20140301823A1 US 201214342816 A US201214342816 A US 201214342816A US 2014301823 A1 US2014301823 A1 US 2014301823A1
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US
United States
Prior art keywords
blade wheel
pipe
turbines
pump
hydraulic machine
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.)
Abandoned
Application number
US14/342,816
Other languages
English (en)
Inventor
Martin Schabasser
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Assigned to VOITH PATENT GMBH reassignment VOITH PATENT GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHABASSER, MARTIN
Publication of US20140301823A1 publication Critical patent/US20140301823A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • 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
    • F03B3/10—Machines or engines of reaction type; Parts or details peculiar thereto characterised by having means for functioning alternatively as pumps or turbines
    • F03B3/103—Machines or engines of reaction type; Parts or details peculiar thereto characterised by having means for functioning alternatively as pumps or turbines the same wheel acting as turbine wheel and as pump wheel
    • 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
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
    • 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
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/08—Machine or engine aggregates in dams or the like; Conduits therefor, e.g. diffusors
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/13—Stators to collect or cause flow towards or away from turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/50—Inlet or outlet
    • F05B2250/502—Outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/60—Fluid transfer
    • F05B2260/64—Aeration, ventilation, dehumidification or moisture removal of closed spaces
    • 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
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/50—Energy storage in industry with an added climate change mitigation effect

Definitions

  • the invention relates to a hydraulic machine, especially a pump turbine according to the preamble of claim 1 or 2 .
  • the invention further relates to a method for filling or discharging such a machine according to claim 6 or 7 and its preferred use according to claim 9 .
  • Pump turbine systems used in hydroelectric power plants have two operating modes, namely a turbine mode and a pump mode.
  • the pump pumps water from a lower basin into an upper basin and is driven for this purpose by an electrical machine which is in drive communication with the pump.
  • the electrical machine is fed from a public power supply grid, i.e. it is supplied with electrical power.
  • turbine mode on the other hand, the water flowing from the upper basin through the turbine into the lower basin drives the turbine which transmits a corresponding power to the electrical machine.
  • the electrical machine converts the drive power into electrical power and feeds this into the power supply grid.
  • the electrical machine thus operates on one occasion as a generator and on another occasion as a motor. It is therefore also designated as a motor-generator.
  • reversible pump turbine systems have also become known in which the turbine and pump are formed by a common blade wheel so that in turbine mode the common blade wheel is acted upon with water from the upper basin to generate electrical power and in pump mode it is driven by the electrical machine.
  • the pump turbine Since such pump storage power plants are used to compensate for load peaks in the power supply grid, the pump turbine must be put into a position to deliver turbine power as rapidly as possible in order to support the power supply grid or to rapidly receive pump power in order to be used for primary grid regulation. It is therefore desirable that the pump turbine of a pump storage power plant can be put into pump mode as rapidly as possible and conversely.
  • the draft tube bend is usually located at the bottom, so that the water level can be lifted until complete discharging by purposeful ventilation. If the draft tube bend is situated above the pump on the other hand, its rapid filling would lead to uncontrolled filling of the blade wheel however.
  • the draft tube bend is usually situated at the bottom, so that the water level can be lowered in a controlled fashion by means of purposeful aeration. This was not possible until now by a draft tube bend situated above the pump.
  • the draft bend tube is arranged above the blade wheel and at least one bypass pipe is provided for bypassing the guide and/or closure apparatus, which bypass pipe connects the inlet spiral directly to the blade wheel when a bypass valve arranged in the run of said bypass pipe is opened.
  • the blade wheel can be filled in a purposeful way by these bypass pipes by bypassing the closed guide and/or closure apparatus. It is thus possible by providing the system with a ring gate for example to keep the inlet spiral continuously subject to the headwater pressure, which considerable increases the operational lifespan and further minimizes the times required for operational transitions, since the spiral need not be filled or discharged.
  • bypass pipes There can be one or several of the bypass pipes, which after the closing valves is opened directly into the machine before or after the guide apparatus, preferably into the lateral space of the blade wheel, so that the flow channel is not disturbed by installed parts or openings.
  • a bypass pipe ideally opens into an upper and/or lower turbine or pump cover.
  • the bypass pipes can also be arranged in the annular space between the ring gate and the guide apparatus. In this case, the guide apparatus can be closed for discharging/aerating or filling/ventilating, or it can be larger in an intermediate position than in the closed position.
  • the bypass pipe can directly be connected to the inlet spiral via a valve.
  • the cross-section of the bypass pipe is chosen smaller than the cross-section of the ventilation pipe in the draft bend tube, so that in the case of load shedding for example during the filling process no impermissible pressure increase can occur in the draft bend tube.
  • the valve in the bypass pipe must be locked in such a way that it can only be opened after the opening of the ventilation valve in the draft bend tube and is already closed before the closing of the ventilation valve.
  • the pump blade wheel can be filled via the bypass pipe during the operation of the machine as is possible by the headwater pressure.
  • the small remainder can be filled from the suction side.
  • the draft bend tube is arranged above the blade wheel and at least one discharge pipe is provided for discharging the blade wheel, which connects the blade wheel directly to a pump sump when a discharge valve arranged in the course of this discharge pipe is opened.
  • the blade wheel can thus be drained when the closing valves on the tailwater side and the headwater side are closed.
  • the arrangement in the lateral space of the blade wheel prevents the positioning of installed parts or openings in the flow channel.
  • Discharge pipes lead to the pump sump.
  • a ring gate can simultaneously be used for example to separate the blade wheel space from the spiral so that the inlet spiral does not require discharging.
  • the system in accordance with the invention is not principally limited to the sole attachment of one type of pipe, but may comprise any desired number and combination of both bypass pipes and discharge pipes as required.
  • FIG. 1 shows a side view of a pump turbine of Francis configuration in accordance with the invention, comprising a blade wheel which is rotatably held about a rotational axis, and an inlet spiral which surrounds said blade wheel in a ring-like manner, and a draft bend tube situated above the blade wheel, and
  • FIG. 2 shows an intersected side view of a part of the pump turbine in accordance with the invention according to FIG. 1 in order to illustrate the position of the bypass pipes and the discharge pipes.
  • FIG. 1 shows a side view of a pump turbine 10 of Francis configuration in accordance with the invention, comprising a blade wheel 20 (not shown) which is rotatably mounted about a rotational axis R, and an inlet spiral 30 which surrounds said blade wheel 20 in a ring-like manner, and a draft tube bend 50 which is situated above the blade wheel 20 .
  • the water flows into the blade wheel 20 radially to the rotational axis R from an outlet opening present on the inner circumference of the inlet spiral 30 .
  • the water is deflected upwardly under the release of energy in the direction of the rotational axis R, while the blade wheel 20 is made to rotate.
  • the water is then supplied via the draft bend tube 52 to a draft tube connected thereto (not shown).
  • the draft tube bend is usually situated at the bottom, so that the water level can be lifted until complete discharging by purposeful ventilation. If the draft tube bend is situated above the pump on the other hand, its rapid filling would lead to uncontrolled filling of the blade wheel however.
  • the draft tube bend is usually situated at the bottom, so that the water level can be lowered in a controlled fashion by means of purposeful aeration. This was not possible until now by a draft tube bend situated above the pump.
  • FIG. 2 shows an intersected side view of a part of the pump turbine 10 in accordance with the invention according to FIG. 1 in order to illustrate the position of the bypass pipes 60 . 1 , 60 . 2 and the discharge pipes 70 . 1 , 70 . 2 .
  • the bypass pipes 60 . 1 , 60 . 2 bypass a guide and closure apparatus 40 and open into a bottom and upper turbine or pump cover.
  • the guide and closure apparatus 40 can consist of guide blades 40 . 1 and a ring gate 40 . 2 .
  • the blade wheel 20 can thus be filled in a virtually rapid and continuous manner from the high-pressure side, wherein the air is discharged via a ventilation pipe (not shown).
  • the cross-sections of the bypass pipes 60 . 1 , 60 . 2 are preferably smaller than those of the discharge pipes in order to prevent overpressure in the blade wheel space.
  • the blade wheel 20 can be discharged via the discharge pipes 70 . 1 , 70 . 2 in the case of closing valves which are closed on the high-pressure and low-pressure side, wherein an aeration pipe (not shown) is opened.
  • the cross-sections of the discharge pipes 70 . 1 , 70 . 2 are also preferably smaller than those of the aeration pipes in order to prevent negative pressure in the blade wheel space.
  • Both the bypass pipes 60 . 1 , 60 . 2 as well as the discharge pipes 70 . 1 , 70 . 2 are equipped with valves which enable reliable opening and closing. Both types of pipes can be implemented easily from a constructional standpoint and can therefore be realized at low cost.
  • the valves can consequently be triggered depending on other closing valves on the high-pressure and low-pressure side, e.g. by means of computer-implemented or numerical controls in order to perform filling the blade wheel 20 with water or discharging the same.
  • the spiral 30 need not be relieved and is drained in any of the two cases, which represents a considerable reduction in the time used for changing over between phase shifting and pump or turbine operation. At the same time, the operational lifespan of the pump turbines will increase considerably.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hydraulic Turbines (AREA)
US14/342,816 2011-09-14 2012-06-26 Hydraulic machine having an intake manifold located at the top Abandoned US20140301823A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011113442.9 2011-09-14
DE102011113442A DE102011113442A1 (de) 2011-09-14 2011-09-14 Hydraulische Maschine mit oben liegendem Saugkrümmer
PCT/EP2012/002677 WO2013037434A1 (de) 2011-09-14 2012-06-26 Hydraulische maschine mit oben liegendem saugkrümmer

Publications (1)

Publication Number Publication Date
US20140301823A1 true US20140301823A1 (en) 2014-10-09

Family

ID=46384305

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/342,816 Abandoned US20140301823A1 (en) 2011-09-14 2012-06-26 Hydraulic machine having an intake manifold located at the top

Country Status (10)

Country Link
US (1) US20140301823A1 (zh)
EP (1) EP2756186B1 (zh)
JP (1) JP2014526641A (zh)
KR (1) KR20140060496A (zh)
CN (1) CN103797241B (zh)
CA (1) CA2845764A1 (zh)
DE (1) DE102011113442A1 (zh)
ES (1) ES2552951T3 (zh)
PT (1) PT2756186E (zh)
WO (1) WO2013037434A1 (zh)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD35959A (zh) *
US1681711A (en) * 1928-08-21 Hydbatilic powee system
GB1009900A (en) * 1962-10-15 1965-11-17 English Electric Co Ltd Improvements in or relating to hydraulic pumps and reversible pump turbines
DE1503297A1 (de) * 1965-02-18 1969-08-21 Voith Gmbh J M Maschinensatz mit stehender Welle fuer Pumpspeicheranlagen
US3890059A (en) * 1972-10-25 1975-06-17 Hitachi Ltd Hydraulic turbine operating method and apparatus
FR2219690A5 (zh) * 1973-02-23 1974-09-20 Neyrpic Creusot Loire
CH577632A5 (zh) * 1974-07-09 1976-07-15 Charmilles Sa Ateliers
JPS5124431A (en) * 1974-08-16 1976-02-27 Hitachi Ltd Honpukidohoho oyobi sochi
YU37446B (en) * 1975-09-08 1984-08-31 Titovi Zavodi Litostroj Two/three-stage reversible pump turbine
JPS57129268A (en) * 1981-02-03 1982-08-11 Toshiba Corp Controlling method for operation of multi-stage hydraulic machine
DE102006050203A1 (de) * 2006-10-25 2008-04-30 Voith Siemens Hydro Power Generation Gmbh & Co. Kg Hydraulische Maschine

Also Published As

Publication number Publication date
EP2756186A1 (de) 2014-07-23
WO2013037434A1 (de) 2013-03-21
EP2756186B1 (de) 2015-10-07
CN103797241A (zh) 2014-05-14
CN103797241B (zh) 2016-11-16
KR20140060496A (ko) 2014-05-20
ES2552951T3 (es) 2015-12-03
DE102011113442A1 (de) 2013-03-14
CA2845764A1 (en) 2013-03-21
JP2014526641A (ja) 2014-10-06
PT2756186E (pt) 2015-11-24

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AS Assignment

Owner name: VOITH PATENT GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCHABASSER, MARTIN;REEL/FRAME:033176/0329

Effective date: 20140325

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION