WO2012006646A2 - Turbine hydraulique à pression de barrage - Google Patents

Turbine hydraulique à pression de barrage Download PDF

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Publication number
WO2012006646A2
WO2012006646A2 PCT/AT2011/000299 AT2011000299W WO2012006646A2 WO 2012006646 A2 WO2012006646 A2 WO 2012006646A2 AT 2011000299 W AT2011000299 W AT 2011000299W WO 2012006646 A2 WO2012006646 A2 WO 2012006646A2
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
level
machine according
underwater
water level
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.)
Ceased
Application number
PCT/AT2011/000299
Other languages
German (de)
English (en)
Other versions
WO2012006646A3 (fr
Inventor
Andreas Sternecker
Dietmar Ulm
Thorsten KÜHNKE
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.)
Maschinenfabrik Kba-Modling AG
Original Assignee
Maschinenfabrik Kba-Modling 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 Maschinenfabrik Kba-Modling AG filed Critical Maschinenfabrik Kba-Modling AG
Priority to EP11738387.7A priority Critical patent/EP2593664A2/fr
Publication of WO2012006646A2 publication Critical patent/WO2012006646A2/fr
Publication of WO2012006646A3 publication Critical patent/WO2012006646A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F03B7/00—Water wheels
    • 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
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • 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
    • F03B15/14—Regulating, i.e. acting automatically by or of water level
    • 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/915—Mounting on supporting structures or systems on a stationary structure which is vertically adjustable
    • 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

Definitions

  • the invention relates to a hydro-dynamic pressure machine with at least one impeller having a hub and associated blades, and which defines in operation a water level difference between an upstream upstream water level and a downstream underwater level, and with an impeller coupled to the electric motor-generator Machine, wherein the lifting wheel is connected to a lifting device.
  • Hydropower dynamic pressure machines are known for example from AT 404 973 B and AT 501 575 AI.
  • the impeller is mounted in a flume such that the hub of the impeller can accumulate the water in the flume, so that upstream of the impeller a comparatively high head water level and downstream a low subsea water level in operation are obtained.
  • the blades attached to the hub form pockets for transporting the water, wherein in operation the water pressure causes a torque about the axis of the impeller, the axis of the cylindrical hub.
  • backpressure machines of this kind on the downstream side, backflow can occur, which can be returned, for example, to flooding, to other subsequent hydroelectric power plants below the dynamic pressure machine, etc.
  • backwater increases underwater (on the downstream side of the ram pressure machine) the water level, the underwater level, which is reduced in the conventional ram pressure required for an optimal operating point distance between the axis of the impeller (hereafter called the wheel axle) and the underwater level.
  • the wheel axle the dynamic pressure machine can no longer work in an optimal working area as a result.
  • US Pat. No. 7,503,744 B1 discloses a waterwheel arrangement in which curved guide walls are assigned to the respective waterwheel, which are mounted pivotably and, depending on the water level on the upstream side, can be pivoted by means of level sensors and a control device.
  • a lifting device is connected to the impeller, which is connected to a control device for regulating the height of the impeller relative to the underwater level to the distance by controlling the height of the impeller relative to the underwater level Keep the axis of the impeller to the underwater level as it changes in a given workspace.
  • the dedicated control is accomplished using an electronic control device ⁇ rule, in the example, optimized for the control characteristic curve is stored.
  • an electronic control device ⁇ rule in the example, optimized for the control characteristic curve is stored.
  • the control device is preferably associated with an underwater ⁇ level-level sensor connected to a frame supporting the impeller, which level sensor is formed, for example, by an ultrasonic level sensor.
  • This level sensor can also, instead of the vertically movable bearing frame, stationary, for example, on a stationary machine frame or on ei ⁇ nem stationary structure of the channel in which the Staubertma ⁇ machine is arranged, be arranged by the
  • the height of the level sensor changes with the lifting or lowering of the impeller or generally the dynamic pressure machine relative to sub ⁇ water level, which ultimately directly to an optimal height of the level sensor relative to Underwater level can be controlled, since the height difference between the level sensor and wheel axle is fixed in this variant.
  • a change in the underwater level of a control or adjustment of the height of the impeller is based on this change (namely, relative to a "optimal" underwater ⁇ level) to carry out, so as the distance between the wheel axle from Underwater ⁇ serpegel nach mecanic to the predetermined value.
  • an advantageous practical Kon ⁇ constructive tion is characterized in that the impeller is open ⁇ is mounted in a bearing frame, vertically in a stationary frame
  • the lifting device is mounted adjustable.
  • it is for lifting and lowering the back pressure machine of particular advantage when the lifting device comprises a rack connected to the bearing frame or ⁇ spindle as well as a stationary arranged, motor-driven toothed wheel or spindle ⁇ nut member.
  • the lifting device can also be designed, for example, with a (hydraulic or pneumatic) working cylinder.
  • At least one limit switch preferably two limit switches, is or are provided for limiting the stroke of the impeller. These limit switches are used to limit the control range and then of course just ⁇ if to connect to the actual electronic control unit.
  • control device is designed with a PLC unit (memory-programmable controller).
  • Fig. 1 in a schematic arrangement of a hydro-dynamic machine in conjunction with a level sensor for detecting the underwater level, and with an electronic control device and only a very schematically indicated lifting device, wherein moreover associated with the lifting device
  • FIGS. 3 and 4 two schematic illustrations of dynamic pressure machine with schematically indicated upper water and Underwater View ⁇ serpegeln, wherein the lower water level in Fig. 4 is higher, compared with that in Fig. 3, and wherein, accordingly, in the case of Figure 4, the actual dynamic pressure machine, namely the impeller including the bearing frame, is shown raised accordingly;
  • Figures 5 and 6 are perspective views of dynamic pressure machines, wherein similar to the illustrations in Figures 3 and 4, the impeller including bearing frame is illustrated at different heights ..; and
  • Fig. 7 in a detail cross-sectional view in the region of a post of the stationary machine frame of the ram printing machine approximately according to Fig. 5 and 6 and the adjacent vertical frame part of the bearing frame, an arrangement with a rolling bearing, e.g. with balls, for smooth vertical movement of the bearing frame of the impeller relative to the machine frame during lifting or lowering in accordance with changes in the underwater level.
  • a rolling bearing e.g. with balls
  • a hydropower dynamic pressure machine 1 is schematically illustrated with an impeller 2, which has a hub 3 with attached blades 4.
  • the running direction of the impeller 2 or the water-flow device is indicated by arrows, wherein in the pockets formed by the blades 4, water from the upstream side 5, see. the upper water level 6, the strömab stiirt igen page 7, with the lower ⁇ water level 8, is transported.
  • the impeller 2 is thereby rotated by the water pressure.
  • This rotation is transmitted via a suitable transmission 9, which is indicated in Fig. 1 only very schematically with dotted line to an electric motor-generator machine 10, this motor-generator machine 10 is operated normally as a generator to Generate electricity. In the course of this generator operation, this machine 10 exerts a braking torque on the impeller 2 coupled with it.
  • the impeller 2 is arranged with its wheel axle 11 at a distance h from the underwater level 8.
  • a certain height h of the wheel axle 11 relative to the underwater level 8 is to be considered for an optimal operating point.
  • the dynamic pressure machine 1 is automatically raised or lowered relative to the secondary water level 8. This is an electronic
  • Control device 12 is provided which controls an automatic lifting device 13 accordingly to raise or lower the dynamic pressure machine 1.
  • the input of the control device 12 is a level signal supplied from a level sensor 14, which detects the Ünterwasserpegel 8.
  • This level sensor 14 may be of a type known per se, preferably it is an ultrasonic level sensor.
  • a working cylinder is indicated in Fig. 1 only very schematically, but it can also be other types of lifting devices, in particular with a rack and pinion or a spindle drive, be provided, as is apparent from the following FIGS. 2 to 6.
  • Fig. 2 is a somewhat more detailed scheme, with a look ⁇ pictorial representation of the dynamic pressure machine 1, shown, with moreover the Ünterwasserpegel 8 is shown schematically as indicated level.
  • the level sensor 14 for the secondary water level 8 is arranged on a rod-shaped support 17 which cantilevered from an upper frame part 18 of a bearing frame 19 of the impeller 2.
  • the impeller 2 is rotatably mounted.
  • This bearing frame 19 is adjustable relative to a frame 20 of the machine 1 vertically by means of the lifting device 13.
  • the lifting device 13 is designed with a spindle or rack 21 which extends through an upper rail 22 of a support frame 23 fixedly mounted on the machine frame 20; at the top of the spar 22, a drive unit 24 is mounted with, for example, an electric motor 24 '(see also Fig. 5) and a spindle nut or gear (not shown), and the underside of the spindle or rack 21 is connected to the upper frame member 18 the bearing frame 19 firmly connected.
  • the control device 12 receives, as indicated schematically in Figure 2 at 25, a signal concerning the height H of the level sensor 14 above the underwater level 8; In addition, similar to the scheme shown in FIG. 1, the signals from two limit switches 15, 16 supplied at 26 of the control device 12. In addition, as will be explained in more detail below, a signal from an upstream level sensor 27, which detects the upper water level 6, the controller 12 are supplied to also perform a control of the machine 1 depending on the upper water level 6.
  • the control device 12 includes a memory-programmable control unit (PLC unit) 28 and further the actual electronic control unit 29, which supplies the respective level signal of a driver circuit 30, such as a frequency converter circuit for the electric motor 2 'of the drive unit 24.
  • PLC unit memory-programmable control unit
  • the distance H of the level sensor 14 from the underwater level 8 is in a fixed relationship to the distance h of the wheel axle 11 from the underwater level 8 (see Fig. 1), since given a fixed distance between the position of the Un ⁇ terwasserpegel-level sensor 14 and the wheel axle 11 is. Therefore, upon transmission of the respective actual value for the height H to the control device 12, the deviation of the wheel axle 11 with respect to the underwater level can be directly determined 8, and depending on the difference of this actual value of a predetermined desired value, the control device 12 performs according to predetermined characteristics, which may be stored in the PLC unit 28, a control of the lifting ⁇ device 13 via the driver circuit 30 by in order, for example, to raise the impeller 2 with the associated bearing frame 19, for example (see also FIGS.
  • the distance h of the wheel axle 11 from the underwater level 8 is regulated to a predetermined constant value.
  • This predetermined height h of the wheel axle 11 relative to the underwater level 8 results in an optimum operating range or operating point for the dynamic pressure machine 1.
  • a predetermined range for the height h of the wheel axle 11 relative to Un ⁇ terwasserpegel 8 is specified ( as target range) to perform the control.
  • other parameters such as the speed of the impeller 2, affect the water level, for example by the water level at a
  • the back pressure machine 1 8 is shown in a position with deep Un ⁇ terwasserpegel, the bearing frame 19 of the impeller 2, for example, is in its lowermost position.
  • a comparatively high underwater level 8 is given, and the control device 12 (see Fig. 1 and 2), the lifting device 13 has been caused to raise the bearing frame 19 with the impeller 2 in accordance with the rise of the underwater level 8, which a comparison of FIG. 4 with FIG. 3 is directly he ⁇ is visible.
  • FIGS. 3 and 4 and the respective upper water level 6 is further shown by way of example in association with the upper water level Pe ⁇ gelsensor 27th Furthermore, in Fig. 3 and 4, the respective height h of the axis 11 of the impeller 2 is shown relative to the underwater level 8 with a double arrow.
  • the diagrammatic representations in Figs. 5 and 6 are substantially similar to those of Figs. 3 and 4, but show the dynamic pressure machine 1 on a larger scale, illustrating further details.
  • Switching element 16 'of this lower limit switch 16 can be seen from FIGS. 5 and 6, namely that switching element 16', which is connected to the movable bearing frame 19, and that with a not apparent in the drawing switching element on the machine frame 20, ie a stationary Switching element, in a per se usual W eise cooperating to deliver a switching signal.
  • a switching element 15 'of the upper limit switch 15 is illustrated on the rack 21 of the lifting device 13, which at start-up of the bearing frame 19 with the impeller 2, when moving up the rack 21 by means of the drive unit 24, with an upper rail 22 of the Frame 23 arranged fixed switching element (not shown) cooperates to effect an upper stroke limiter and thus a control range limit.
  • Fig. 6 it can be seen how the rack 21 is moved by the drive unit 24 upwards also when moving up the rack 21 (with the associated bearing frame 19 and the impeller 2).
  • the bearing frame 19 is preferably formed by molding tubes, wherein concrete, for example, four mold tubes (or generally carrier, eg I-beam) are connected together to form a rectangular frame which is built around the impeller 2 around.
  • the upper frame part 18 is thus one of the four molding tubes; a corresponding horizontal forming tube is located below the impeller 2 (this forming tube is not visible in the drawing) and the storage frame 19 is completed by two vertical forming tubes or carriers 32, 33 (see Fig. 5).
  • the impeller 2 is laterally closed by circular shrouds 34, 35, which rotate with the impeller 2, and limit the rotor width (impeller width). These covers 34, 35 allow easy lateral sealing of the impeller. 2
  • the blades 4 are arranged, for example, on the hub 3 in each case in a V- shaped manner, in order to be able to absorb the water pressure from the upstream side as efficiently as possible and convert it into a torque about the wheel axis.
  • the molded tube bearing frame 19 described allows a flexible design, in the manner of a simple modular concept, wherein depending on the width and depth of the channel and thus depending on the size of the impeller (diameter, axial width) in a simple manner, a matching bearing frame can be provided.
  • the above-mentioned shaping tubes 18, 32, 34 also make it possible to provide, for example, two running wheels in a bearing frame 19 with only one drive (gearbox) to form an electric machine 10 (see FIG.
  • the control device 12 can now also be used to regulate the upper water level 6 (see FIGS. 3 and 4) in the region of a favorable value by acting on the rotational speed of the impeller 2. Concretely, as much water from the upstream side ⁇ rtigen strength side can at a high speed of the impeller 2 to the st romabissert be transported in that the upper water level 6 falls, so that the expensive Ar ⁇ beits Scheme is exited.
  • Fig. 7 is finally in a horizontal part-section an example of a low-friction sliding guide of the bearing frame 19, for example of a vertical forming tube support 32, illustrated in the machine frame 20.
  • conventional rolling bearings 36 for example with balls or rollers, are provided which act between the vertical forming tubes, eg the forming tube 32, the bearing frame 19 and the stationary uprights, eg a post 37, of the machine frame 20.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)
  • Control Of Water Turbines (AREA)

Abstract

Turbine hydraulique à pression de barrage (1) comportant au moins une roue (2) qui est pourvue d'un moyeu (3) et d'aubes (4) reliées au moyeu et qui établit, lors de son fonctionnement, une différence de niveau d'eau entre un niveau (6) des eaux supérieures en amont et un niveau (8) des eaux inférieures en aval, et une machine moteur-générateur (10) électrique couplée à la roue (2), un dispositif de levage (13) étant associé à la roue (2). Selon l'invention, le dispositif de levage (13) est raccordé à un dispositif de réglage (12) destiné à régler la hauteur de l'axe (11) de la roue (2) par rapport au niveau (8) des eaux inférieures, pour maintenir dans une zone de fonctionnement prédéfini, par le réglage de la hauteur de l'axe (11) de la roue (2) par rapport au niveau (8) des eaux inférieures, l'écart (h) séparant l'axe (11) de la roue (2) du niveau (8) des eaux inférieures en cas de modification dudit niveau.
PCT/AT2011/000299 2010-07-14 2011-07-14 Turbine hydraulique à pression de barrage Ceased WO2012006646A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11738387.7A EP2593664A2 (fr) 2010-07-14 2011-07-14 Turbine hydraulique à pression de barrage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1194/2010 2010-07-14
ATA1194/2010A AT510074B1 (de) 2010-07-14 2010-07-14 Wasserkraft-staudruckmaschine

Publications (2)

Publication Number Publication Date
WO2012006646A2 true WO2012006646A2 (fr) 2012-01-19
WO2012006646A3 WO2012006646A3 (fr) 2012-06-28

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PCT/AT2011/000299 Ceased WO2012006646A2 (fr) 2010-07-14 2011-07-14 Turbine hydraulique à pression de barrage

Country Status (3)

Country Link
EP (1) EP2593664A2 (fr)
AT (1) AT510074B1 (fr)
WO (1) WO2012006646A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100028589A1 (it) * 2021-11-10 2023-05-10 Salvatore Mancuso Dispositivo a ruota idraulica e metodo di azionamento associato

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE116157C (fr) 1900-02-16 1900-12-28
US5440175A (en) 1993-07-06 1995-08-08 Mayo, Jr.; Howard A. Waterwheel-driven generating unit
US5882143A (en) 1997-05-19 1999-03-16 Williams, Jr.; Fred Elmore Low head dam hydroelectric system
AT404973B (de) 1997-04-01 1999-04-26 Brinnich Adolf Wasserkraft - staudruckmaschine
WO2003054387A1 (fr) 2001-12-20 2003-07-03 Va Tech Hydro Gmbh & Co Procede et dispositif de regulation du niveau d'un barrage
AT501575A1 (de) 2005-12-27 2006-09-15 Brinnich Adolf Wasserkraft-staudruckmaschine
US7503744B1 (en) 2005-10-06 2009-03-17 Broome Kenneth R Undershot impulse jet driven waterwheel having an automatically adjustable radial gate for optimal hydroelectric power generation and water level control
WO2009074005A1 (fr) 2007-11-20 2009-06-18 Chin-Ho Chiu Dispositif générateur d'énergie grâce au niveau d'eau

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT509497B1 (de) * 2010-03-02 2018-09-15 Astra Vermoegens Und Beteiligungsverwaltungsgesellschaft Mbh Wasserkraftmaschine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE116157C (fr) 1900-02-16 1900-12-28
US5440175A (en) 1993-07-06 1995-08-08 Mayo, Jr.; Howard A. Waterwheel-driven generating unit
AT404973B (de) 1997-04-01 1999-04-26 Brinnich Adolf Wasserkraft - staudruckmaschine
US5882143A (en) 1997-05-19 1999-03-16 Williams, Jr.; Fred Elmore Low head dam hydroelectric system
WO2003054387A1 (fr) 2001-12-20 2003-07-03 Va Tech Hydro Gmbh & Co Procede et dispositif de regulation du niveau d'un barrage
US7503744B1 (en) 2005-10-06 2009-03-17 Broome Kenneth R Undershot impulse jet driven waterwheel having an automatically adjustable radial gate for optimal hydroelectric power generation and water level control
AT501575A1 (de) 2005-12-27 2006-09-15 Brinnich Adolf Wasserkraft-staudruckmaschine
WO2009074005A1 (fr) 2007-11-20 2009-06-18 Chin-Ho Chiu Dispositif générateur d'énergie grâce au niveau d'eau

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100028589A1 (it) * 2021-11-10 2023-05-10 Salvatore Mancuso Dispositivo a ruota idraulica e metodo di azionamento associato

Also Published As

Publication number Publication date
AT510074B1 (de) 2017-06-15
EP2593664A2 (fr) 2013-05-22
WO2012006646A3 (fr) 2012-06-28
AT510074A1 (de) 2012-01-15

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