WO2020102835A1 - Weir system - Google Patents
Weir systemInfo
- Publication number
- WO2020102835A1 WO2020102835A1 PCT/AT2019/060355 AT2019060355W WO2020102835A1 WO 2020102835 A1 WO2020102835 A1 WO 2020102835A1 AT 2019060355 W AT2019060355 W AT 2019060355W WO 2020102835 A1 WO2020102835 A1 WO 2020102835A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- turbine
- weir
- end walls
- free jet
- blades
- Prior art date
Links
Classifications
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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
- F03B1/00—Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on blades or like rotors, e.g. Pelton wheels; Parts or details peculiar thereto
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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
- F03B7/00—Water wheels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
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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
- 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
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- 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
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
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- 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
- F05B2250/70—Shape
- F05B2250/71—Shape curved
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- 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 weir system with a weir, with a downstream of the weir in the flow direction, the height shiftable, arranged under half an overflow ramp free jet turbine and with at least one lower turbine feed, which comprises a nozzle-like guide device directed against the turbine rotor.
- the impact water flows against the turbine blades above the underwater and can also flow freely out of the chambers between the blades, so that the kinematic energy of the impact water can be used advantageously to drive the turbine rotor.
- the turbine arrangement below an overflow ramp provides simple protection for the radial turbine against flooding. Because the radial turbine on the rifle table is stored, the debris danger does not need to be taken into account in the design, because the radial turbine with the rifle table is raised.
- the chambers between the turbines In order to allow fish to pass through the free jet turbine without risk of injury to the fish, the chambers between the turbines must have a sufficient intake volume, which in turn limits the number of turbine blades with the disadvantage that the smoothness of the turbine rotor is severely disturbed. This not only leads to higher mechanical loads on the turbine system including the driven generator, but also losses in terms of efficiency.
- the invention is therefore based on the object of designing a free-jet turbine for a weir system in such a way that, despite the number of blades being restricted to a few blades, the loads occurring can be kept small and largely uniform rotor rotations can be ensured.
- the present invention achieves the object in that the turbine blades, which run in the form of an arrow between two end walls, have two blade sections that start from the end walls and are inclined with respect to one another and symmetrical with respect to a central plane between the end walls .
- arrow shape of the course of the turbine blades can be oriented in or against the direction of rotation of the turbine rotor, more favorable flow conditions can be used with an arrow shape pointing in the direction of rotation, ie with the blade sections converging in the direction of rotation of the rotor.
- the floating mechanism for the rifle boards of the weir can advantageously be used if the free jet turbine is arranged on a rifle board as a turbine carrier.
- the free jet turbine is also possible to store the free jet turbine in guides that are attached to the weir channel walls, independently of a rifle board.
- those turbine arrangements which can be shifted in height require separate lifting drives.
- Fig. 1 a weir system according to the invention in a schematic longitudinal section through the weir and
- Fig. 2 shows the turbine rotor in a schematic plan view on a larger scale.
- the weir system shown has a weir 1 which has a rifle board 3 in a vertical guide 2 with a top storage flap 4.
- the contactor board 3 is lifted along the vertical tour 2 relocatable.
- Swivel cylinder provided.
- a free jet turbine 7 is arranged, which is acted upon with the otherwise forming an overflow residual water via a turbine feed 8 from below.
- the free jet turbine 7 is mounted on a slide 9 which is mounted on the Schüt zentafel 3 in a slide guide 10 of the fleas adjustable.
- the carriage drive 1 1 is only indicated schematically.
- the turbine feed 8 comprises a nozzle-like guide device, which preferably has an upper and a lower guide wall 12, 13.
- This guide device connects to an inlet gap 14 between a forebody 15 and the correspondingly raised rifle board 3, so that the otherwise form an overflow de residual water below the rifle board 3 flows to the free jet turbine 7 above the underwater.
- the position of the guide walls 12, 13 can be adjusted by means of actuators 17 and 18 indicated by dash-dotted lines.
- the turbine rotor 16 of the open-jet turbine 7, which can be acted upon from below, is equipped with turbine blades 19 which extend between two end walls 20 of the turbine rotor 16 and allow the impact water to be deflected and thus advantageously transfer the kinetic energy of the impact water to the turbine rotor 16.
- the turbine blades 19 are curved in a section perpendicular to the rotor axis against the direction of rotation, for example in that an outer radial edge portion of the turbine blades 19 according to FIG. 1 is bent back against the direction of rotation.
- the turbine blades 16 between the end walls 20 have an arrow-shaped course, which is achieved by two mutually inclined, starting from the end walls 20, with respect to a median plane 21 between the end walls 20 symmetrical and continuously merging blade sections 22, as is achieved 2 can be seen.
- the arrow course of the turbine blades 19, which is preferably oriented in the direction of rotation, requires one Over an angle of rotation of the turbine rotor 16 increasing exposure to the turbine blades 19, which is an essential prerequisite for a largely uniform torque application of the turbine rotor 16 during a rotor revolution in a turbine rotor 16 with a limited number of blades.
- a small number of blades is required for a speed through the free jet turbine in the flow direction in order to ensure that sufficiently large chambers between the turbine blades 19 can be used to safely take fish.
- an arrangement of six turbine blades has proven itself for this purpose, it is entirely possible to reduce or increase this number of blades in order to adapt to the requirements to be taken into account in each case.
- the guide device can be aligned with the turbine rotor 16 by adjusting the guide walls 12 and 13. Since the impact water flowing out of the turbine blades 19 requires a corresponding flow cross section, the turbine rotor 16 is to be arranged above the underwater with an adapted minimum distance from the afterburden 23. The additional height adjustment of the free jet turbine 7 with respect to the rifle board 3 via the slide 9 enables a sensitive adjustment.
- the free jet turbine 7 is arranged below an overflow ramp 24, so that even when the baffle flap 4 is pivoted away, the puddles flowing out of the storage space cannot endanger the free jet turbine 7. Since the free jet door 7 is pulled up with the rifle board 3, the attachment can also pose no danger to the free jet turbine 7. It is only necessary to ensure that, in particular, the lower guide wall 13 with the rifle board 3 is raised accordingly and is moved out of the attachment area.
- the residual water can be supplied not only under the rifle board 3, but also with the aid of a lifting device over the weir 1 of the turbine feed 8 to act on the free jet turbine 7, specifically via a chute that opens into the turbine feed 8. It is also possible to close the free jet turbine 7 in guides 25 independently of a rifle board 3 store, which are attached to the weir channel walls 26, as indicated by dash-dotted lines in Fig. 1. However, those in height according to ge in guides 25 which are displaceable turbine arrangements require separate lifting drives 27.
- generator 7 which can be driven by the free jet turbine 7
- generator usually forms a generator connected via a clutch and, if appropriate, a transmission with the Open jet turbine 7 is a jointly adjustable structural unit, which can also be assigned a flywheel for uniform non-uniform rotary movements.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention relates to a weir system comprising a weir (1), a free jet turbine (7) which is arranged downstream of the weir (1) in the flow direction, can be adjusted vertically, and is arranged below an overflow ramp (24), and at least one lower turbine feed (8) which comprises a nozzle-like guide device that is oriented towards the turbine rotor (16). In order to achieve advantageous structural conditions, the turbine blades (19) which run between two end walls (20) in an arrow-shaped manner have two blade sections (22) which start from the end walls (20), are inclined relative to each other, are symmetrical with respect to a central plane (21) between the end walls (20), and continuously transition into each other.
Description
Wehranlage Weir system
Technisches Gebiet Technical field
Die Erfindung bezieht sich auf eine Wehranlage mit einem Wehr, mit einer dem Wehr in Strömungsrichtung nachgeordneten, der Höhe nach verlagerbaren, unter halb einer Überlauframpe angeordneten Freistrahlturbine und mit wenigstens einer unteren Turbinenanspeisung, die eine gegen den Turbinenrotor gerichtete, düsen artige Leiteinrichtung umfasst. The invention relates to a weir system with a weir, with a downstream of the weir in the flow direction, the height shiftable, arranged under half an overflow ramp free jet turbine and with at least one lower turbine feed, which comprises a nozzle-like guide device directed against the turbine rotor.
Stand der Technik State of the art
Um bestehende Wehranlagen mit einem vergleichsweise geringen Konstruktions aufwand zur Energiegewinnung mit einer Wasserkraftturbine ausrüsten zu kön nen, die mit einem guten Wirkungsgrad das Überlaufwasser dieser Wehranlagen nützt und in einfacher Weise vor Geschwemmsel und Geschiebe geschützt wer den kann, ist es bekannt (WO 2012/129586 A2), eine über wenigstens eine untere Turbinenanspeisung beaufschlagbare, als Freistrahlturbine wirkende Radialturbine unterhalb einer Überlauframpe auf einer Schützentafel des Wehrs vorzusehen, sodass die Radialturbine mithilfe der Schützentafel der Höhe nach verlagert wer den kann. Mit dem Vorsehen einer unteren Turbinenanspeisung in Form einer ge gen den Turbinenrotor gerichteten, düsenartigen Leiteinrichtung werden darüber hinaus wesentliche Voraussetzungen geschaffen, die Radialturbine vorteilhaft mit dem Restwasser nach Art einer Freistrahlturbine zu beaufschlagen. Das Auf schlagswasser strömt gerichtet gegen die Turbinenschaufeln oberhalb des Unter wassers und kann auch wieder aus den Kammern zwischen den Schaufeln frei ausströmen, sodass die kinematische Energie des Aufschlagswassers vorteilhaft für den Antrieb des Turbinenrotors genützt werden kann. Dazu kommt, dass die Turbinenanordnung unterhalb einer Überlauframpe einen einfachen Schutz der Radialturbine gegenüber Geschwemmsel mit sich bringt. Da die Radialturbine an
der Schützentafel gelagert ist, braucht auch die Geschiebegefahr konstruktiv nicht besonders berücksichtigt zu werden, weil ja die Radialturbine mit der Schützenta fel hochgezogen wird. In order to equip existing weir systems with a comparatively low design effort for energy generation with a hydropower turbine, which uses the overflow water of these weir systems with a high degree of efficiency and who can be protected in a simple manner from flooding and debris, it is known (WO 2012/129586 A2) to provide a radial turbine acting as a free jet turbine via at least one lower turbine feed below an overflow ramp on a rifle board of the weir, so that the radial turbine can be shifted in height with the help of the runners board. With the provision of a lower turbine feed in the form of a ge directed towards the turbine rotor, nozzle-like guide device, essential prerequisites are also created to advantageously apply the residual water to the radial turbine in the manner of a free jet turbine. The impact water flows against the turbine blades above the underwater and can also flow freely out of the chambers between the blades, so that the kinematic energy of the impact water can be used advantageously to drive the turbine rotor. In addition, the turbine arrangement below an overflow ramp provides simple protection for the radial turbine against flooding. Because the radial turbine on the rifle table is stored, the debris danger does not need to be taken into account in the design, because the radial turbine with the rifle table is raised.
Um einen Durchgang von Fischen durch die Freistrahlturbine ohne Verletzungsge fahr für die Fische zu ermöglichen, müssen die Kammern zwischen den Turbinen schaufeln ein ausreichendes Aufnahmevolumen aufweisen, was wiederum die Anzahl der Turbinenschaufeln mit dem Nachteil beschränkt, dass die Laufruhe des Turbinenrotors empfindlich gestört wird. Daraus leiten sich nicht nur höhere me chanische Belastungen der Turbinenanlage einschließlich des angetriebenen Ge nerators, sondern auch Einbußen in Bezug auf den Wirkungsgrad ab. In order to allow fish to pass through the free jet turbine without risk of injury to the fish, the chambers between the turbines must have a sufficient intake volume, which in turn limits the number of turbine blades with the disadvantage that the smoothness of the turbine rotor is severely disturbed. This not only leads to higher mechanical loads on the turbine system including the driven generator, but also losses in terms of efficiency.
Darstellung der Erfindung Presentation of the invention
Der Erfindung liegt somit die Aufgabe zugrunde, eine Freistrahlturbine für eine Wehranlage so auszubilden, dass trotz einer Beschränkung der Schaufelzahl auf wenige Schaufeln die auftretenden Belastungen klein gehalten und weitgehend gleichförmige Rotordrehungen sichergestellt werden können. The invention is therefore based on the object of designing a free-jet turbine for a weir system in such a way that, despite the number of blades being restricted to a few blades, the loads occurring can be kept small and largely uniform rotor rotations can be ensured.
Ausgehend von einer Wehranlage der eingangs geschilderten Art löst die Erfin dung die gestellte Aufgabe dadurch, dass die zwischen zwei Stirnwänden pfeil förmig verlaufenden Turbinenschaufeln zwei von den Stirnwänden ausgehende, zueinander geneigte, in Bezug auf eine Mittelebene zwischen den Stirnwänden symmetrische, ineinander stetig übergehende Schaufelabschnitte aufweisen. Starting from a weir system of the type described at the outset, the present invention achieves the object in that the turbine blades, which run in the form of an arrow between two end walls, have two blade sections that start from the end walls and are inclined with respect to one another and symmetrical with respect to a central plane between the end walls .
Zufolge der durch ihren Verlauf eine Pfeilform der Turbinenschaufeln bestimmen den Schaufelabschnitte beaufschlagt das Aufschlagswasser aus der Leiteinrich tung die Turbinenschaufeln nicht schlagartig entlang ihrer gesamten axialen Er streckung, sondern in Abhängigkeit vom Neigungswinkel dieser Schaufelabschnit te über einen Drehwinkel verteilt, sodass aufgrund der dadurch bedingten Vertei lung der Rotorbeaufschlagung über einen größeren Umfangsbereich eine gleich mäßigere Rotordrehung gewährleistet werden kann. Damit sind die konstruktiven Voraussetzungen für Freistrahlturbinen geschaffen, die aufgrund ausreichend
großer Kammern zwischen den einen stetigen Verlauf zwischen den Stirnwänden aufweisenden Turbinenschaufeln einen weitgehend gefahrlosen Fischdurchgang in Strömungsrichtung ermöglichen, und zwar bei günstigen mechanischen Be triebsbedingungen für die Freistrahlturbine. Der zur Mittelebene zwischen den bei den Stirnwänden symmetrische Verlauf der beiden Schaufelabschnitte stellt sym metrische Belastungsverhältnisse unter Vermeidung von resultierenden Axialkräf ten sicher. As a result of the arrow shape of the turbine blades determining the course of the blade sections, the impact water from the guide device does not abruptly impinge the turbine blades along their entire axial extension, but rather is distributed over an angle of rotation as a function of the angle of inclination of these blade sections, so that due to the resulting distribution more uniform rotation of the rotor can be guaranteed over a larger circumferential area. This creates the design requirements for free jet turbines, which are sufficient Large chambers between the turbine blades having a constant course between the end walls enable a largely safe passage of fish in the direction of flow, with favorable mechanical operating conditions for the free jet turbine. The course of the two blade sections, which is symmetrical to the center plane between the end walls, ensures symmetrical load conditions while avoiding the resulting axial forces.
Obwohl die Pfeilform des Verlaufs der Turbinenschaufeln in oder entgegen der Drehrichtung des Turbinenrotors ausgerichtet sein kann, können mit einer in Dreh richtung weisenden Pfeilform, also mit in Drehrichtung des Rotors konvergieren den Schaufelabschnitten, günstigere Strömungsbedingungen genützt werden. Although the arrow shape of the course of the turbine blades can be oriented in or against the direction of rotation of the turbine rotor, more favorable flow conditions can be used with an arrow shape pointing in the direction of rotation, ie with the blade sections converging in the direction of rotation of the rotor.
Zur Flöhenverstellung der Freistrahlturbine kann vorteilhaft das Flubwerk für die Schützentafeln des Wehrs genützt werden, wenn die Freistrahlturbine auf einer Schützentafel als Turbinenträger angeordnet ist. Es ist aber auch möglich, die Freistrahlturbine unabhängig von einer Schützentafel in Führungen zu lagern, die an den Wehrkanalwänden angebracht sind. Allerdings benötigen solche der Höhe nach verlagerbare Turbinenanordnungen gesonderte Hubtriebe. To adjust the flue of the free jet turbine, the floating mechanism for the rifle boards of the weir can advantageously be used if the free jet turbine is arranged on a rifle board as a turbine carrier. However, it is also possible to store the free jet turbine in guides that are attached to the weir channel walls, independently of a rifle board. However, those turbine arrangements which can be shifted in height require separate lifting drives.
Kurze Beschreibung der Erfindung Brief description of the invention
In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zei gen The subject matter of the invention is shown in the drawing, for example. Show it
Fig. 1 eine erfindungsgemäße Wehranlage in einem schematischen Längsschnitt durch das Wehr und Fig. 1 a weir system according to the invention in a schematic longitudinal section through the weir and
Fig. 2 den Turbinenrotor in einer schematischen Draufsicht in einem größeren Maßstab. Fig. 2 shows the turbine rotor in a schematic plan view on a larger scale.
Wege zur Ausführung der Erfindung Ways of Carrying Out the Invention
Die dargestellte Wehranlage weist ein Wehr 1 auf, das eine in einer Vertikalfüh rung 2 der Höhe nach geführte Schützentafel 3 mit einer oberen Stauklappe 4 aufweist. Die Schützentafel 3 ist mit Hilfe eines Hubwerks 5 entlang der Vertikal-
führung 2 verlagerbar. Für die Stauklappe 4, die am oberen Rand der Schützenta fel 3 angelenkt ist, ist ein Schwenktrieb 6 z. B. in Form wenigstens eines The weir system shown has a weir 1 which has a rifle board 3 in a vertical guide 2 with a top storage flap 4. The contactor board 3 is lifted along the vertical tour 2 relocatable. For the damper 4, which is articulated on the upper edge of the Schützenta field 3, a swivel drive 6 z. B. in the form of at least one
Schwenkzylinders vorgesehen. Auf der Seite des Unterwassers ist an der Schüt zentafel 3 eine Freistrahlturbine 7 angeordnet, die mit dem sonst einen Überlauf bildenden Restwasser über eine Turbinenanspeisung 8 von unten beaufschlagt wird. Die Freistrahlturbine 7 ist auf einem Schlitten 9 gelagert, der auf der Schüt zentafel 3 in einer Schlittenführung 10 der Flöhe nach verstellbar gelagert ist. Der Schlittenantrieb 1 1 ist lediglich schematisch angedeutet. Swivel cylinder provided. On the side of the underwater on the Schüt zentafel 3, a free jet turbine 7 is arranged, which is acted upon with the otherwise forming an overflow residual water via a turbine feed 8 from below. The free jet turbine 7 is mounted on a slide 9 which is mounted on the Schüt zentafel 3 in a slide guide 10 of the fleas adjustable. The carriage drive 1 1 is only indicated schematically.
Die Turbinenanspeisung 8 umfasst eine düsenartige Leiteinrichtung, die vorzugs weise eine obere und eine untere Leitwand 12, 13 aufweist. Diese Leiteinrichtung schließt an einen Zulaufspalt 14 zwischen einem Vorboden 15 und der entspre chend angehobenen Schützentafel 3 an, sodass das sonst einen Überlauf bilden de Restwasser unterhalb der Schützentafel 3 zur oberhalb des Unterwassers an geordneten Freistrahlturbine 7 strömt. Zur Einstellung der Durchlaufmenge sowie der Düsenausrichtung gegenüber dem Turbinenrotor 16 sind die Leitwände 12, 13 über strichpunktiert angedeutete Stelltriebe 17 und 18 in ihrer Lage einstellbar. The turbine feed 8 comprises a nozzle-like guide device, which preferably has an upper and a lower guide wall 12, 13. This guide device connects to an inlet gap 14 between a forebody 15 and the correspondingly raised rifle board 3, so that the otherwise form an overflow de residual water below the rifle board 3 flows to the free jet turbine 7 above the underwater. In order to adjust the flow rate and the nozzle orientation relative to the turbine rotor 16, the position of the guide walls 12, 13 can be adjusted by means of actuators 17 and 18 indicated by dash-dotted lines.
Der Turbinenrotor 16 der von unten beaufschlagbaren Freistrahlturbine 7 ist mit Turbinenschaufeln 19 ausgerüstet, die sich zwischen zwei Stirnwänden 20 des Turbinenrotors 16 erstrecken und eine Umlenkung des Aufschlagswassers und damit eine vorteilhafte Übertragung der kinetischen Energie des Aufschlagswas sers auf den Turbinenrotor 16 erlauben. Zu diesem Zweck sind die Turbinen schaufeln 19 in einem zur Rotorachse senkrechten Schnitt entgegen der Drehrich tung gekrümmt ausgebildet, beispielsweise dadurch, dass ein äußerer radialer Randabschnitt der Turbinenschaufeln 19 gemäß Fig. 1 entgegen der Drehrichtung zurückgebogen verläuft. The turbine rotor 16 of the open-jet turbine 7, which can be acted upon from below, is equipped with turbine blades 19 which extend between two end walls 20 of the turbine rotor 16 and allow the impact water to be deflected and thus advantageously transfer the kinetic energy of the impact water to the turbine rotor 16. For this purpose, the turbine blades 19 are curved in a section perpendicular to the rotor axis against the direction of rotation, for example in that an outer radial edge portion of the turbine blades 19 according to FIG. 1 is bent back against the direction of rotation.
Außerdem weisen die Turbinenschaufeln 16 zwischen den Stirnwänden 20 einen pfeilförmigen Verlauf auf, was durch zwei gegeneinander geneigte, von den Stirn wänden 20 ausgehende, in Bezug auf eine Mittelebene 21 zwischen den Stirn wänden 20 symmetrische und ineinander stetig übergehende Schaufelabschnitte 22 erreicht wird, wie dies der Fig. 2 entnommen werden kann. Der vorzugsweise in Drehrichtung ausgerichtete Pfeilverlauf der Turbinenschaufeln 19 bedingt eine
über einen Drehwinkel des Turbinenrotors 16 zunehmende Beaufschlagung der Turbinenschaufeln 19, was eine wesentliche Voraussetzung für eine weitgehend gleichmäßige Drehmomentbeaufschlagung des Turbinenrotors 16 während einer Rotorumdrehung bei einem Turbinenrotor 16 mit einer beschränkten Schaufelan zahl darstellt. Eine geringe Schaufelanzahl ist allerdings für eine Fischdurchgän gigkeit durch die Freistrahlturbine in Durchström richtung erforderlich, um zwischen den Turbinenschaufeln 19 ausreichend große Kammern zur gefahrlosen Fischauf nahme sicherstellen zu können. Obwohl sich für diesen Zweck eine Anordnung von sechs Turbinenschaufeln bewährt hat, ist es zur Anpassung an die jeweils zu berücksichtigenden Anforderungen durchaus möglich diese Schaufelanzahl zu verkleinern oder zu vergrößern. In addition, the turbine blades 16 between the end walls 20 have an arrow-shaped course, which is achieved by two mutually inclined, starting from the end walls 20, with respect to a median plane 21 between the end walls 20 symmetrical and continuously merging blade sections 22, as is achieved 2 can be seen. The arrow course of the turbine blades 19, which is preferably oriented in the direction of rotation, requires one Over an angle of rotation of the turbine rotor 16 increasing exposure to the turbine blades 19, which is an essential prerequisite for a largely uniform torque application of the turbine rotor 16 during a rotor revolution in a turbine rotor 16 with a limited number of blades. A small number of blades, however, is required for a speed through the free jet turbine in the flow direction in order to ensure that sufficiently large chambers between the turbine blades 19 can be used to safely take fish. Although an arrangement of six turbine blades has proven itself for this purpose, it is entirely possible to reduce or increase this number of blades in order to adapt to the requirements to be taken into account in each case.
Um die Turbinenschaufeln 19 vorteilhaft mit dem Aufschlagswasser beaufschla gen zu können, kann die Leiteinrichtung durch das Einstellen der Leitwände 12 und 13 gegenüber dem Turbinenrotor 16 ausgerichtet werden. Da das von den Turbinenschaufeln 19 abströmende Aufschlagswasser einen entsprechenden Strömungsquerschnitt erfordert, ist der Turbinenrotor 16 mit einem angepassten Mindestabstand vom Nachboden 23 oberhalb des Unterwassers anzuordnen. Die zusätzliche Höhenverstellung der Freistrahlturbine 7 gegenüber der Schützentafel 3 über den Schlitten 9 ermöglicht eine feinfühlige Anpassung. In order to be able to advantageously apply the impingement water to the turbine blades 19, the guide device can be aligned with the turbine rotor 16 by adjusting the guide walls 12 and 13. Since the impact water flowing out of the turbine blades 19 requires a corresponding flow cross section, the turbine rotor 16 is to be arranged above the underwater with an adapted minimum distance from the afterburden 23. The additional height adjustment of the free jet turbine 7 with respect to the rifle board 3 via the slide 9 enables a sensitive adjustment.
Die Freistrahlturbine 7 ist unterhalb einer Überlauframpe 24 angeordnet, sodass selbst beim Abschwenken der Stauklappe 4 das aus dem Stauraum abfließende Geschwemmsel die Freistrahlturbine 7 nicht gefährden kann. Da die Freistrahltur bine 7 mit der Schützentafel 3 hochgezogen wird, kann auch das Geschiebe keine Gefahr für die Freistrahlturbine 7 darstellen. Es ist lediglich dafür zu sorgen, dass insbesondere die untere Leitwand 13 mit der Schützentafel 3 entsprechend ange hoben und aus dem Geschiebebereich verlagert wird. The free jet turbine 7 is arranged below an overflow ramp 24, so that even when the baffle flap 4 is pivoted away, the puddles flowing out of the storage space cannot endanger the free jet turbine 7. Since the free jet door 7 is pulled up with the rifle board 3, the attachment can also pose no danger to the free jet turbine 7. It is only necessary to ensure that, in particular, the lower guide wall 13 with the rifle board 3 is raised accordingly and is moved out of the attachment area.
Das Restwasser kann nicht nur unter der Schützentafel 3, sondern mit Hilfe einer Überhebeeinrichtung auch über das Wehr 1 hinweg der Turbinenanspeisung 8 zur Beaufschlagung der Freistrahlturbine 7 zugeführt werden, und zwar über einen Fallschacht, der in die Turbinenanspeisung 8 mündet. Außerdem ist es möglich, die Freistrahlturbine 7 unabhängig von einer Schützentafel 3 in Führungen 25 zu
lagern, die an den Wehrkanalwänden 26 angebracht sind, wie dies in der Fig. 1 strichpunktiert angedeutet ist. Allerdings benötigen solche der Höhe nach in ge sonderten Führungen 25 verlagerbare Turbinenanordnungen gesonderte Hubtrie be 27. Obwohl aus Übersichtlichkeitsgründen in der Zeichnung kein von der Freistrahl turbine 7 antreibbarer Generator dargestellt ist, bildet ein solcher üblicherweise über eine Kupplung und gegebenenfalls ein Getriebe angeschlossener Generator mit der Freistrahlturbine 7 eine gemeinsam verstellbare Baueinheit, der zum Aus gleich ungleichförmiger Drehbewegungen zusätzlich ein Schwungrad zugeordnet werden kann.
The residual water can be supplied not only under the rifle board 3, but also with the aid of a lifting device over the weir 1 of the turbine feed 8 to act on the free jet turbine 7, specifically via a chute that opens into the turbine feed 8. It is also possible to close the free jet turbine 7 in guides 25 independently of a rifle board 3 store, which are attached to the weir channel walls 26, as indicated by dash-dotted lines in Fig. 1. However, those in height according to ge in guides 25 which are displaceable turbine arrangements require separate lifting drives 27. Although for the sake of clarity no generator 7 which can be driven by the free jet turbine 7 is shown in the drawing, such generator usually forms a generator connected via a clutch and, if appropriate, a transmission with the Open jet turbine 7 is a jointly adjustable structural unit, which can also be assigned a flywheel for uniform non-uniform rotary movements.
Claims
1. Wehranlage mit einem Wehr (1 ), mit einer dem Wehr (1 ) in Strömungsrich tung nachgeordneten, der Höhe nach verlagerbaren, unterhalb einer Überlaufram pe (24) angeordneten Freistrahlturbine (7) und mit wenigstens einer unteren Tur- binenanspeisung (8), die eine gegen den Turbinenrotor (16) gerichtete, düsenarti ge Leiteinrichtung umfasst, dadurch gekennzeichnet, dass die zwischen zwei Stirnwänden (20) pfeilförmig verlaufenden Turbinenschaufeln (19) zwei von den Stirnwänden (20) ausgehende, zueinander geneigte, in Bezug auf eine Mittelebe ne (21 ) zwischen den Stirnwänden (20) symmetrische, ineinander stetig überge- hende Schaufelabschnitte (22) aufweisen. 1. Weir system with a weir (1), with a free jet turbine (7) arranged downstream of the weir (1) in the direction of flow, height-adjustable, below an overflow ram (24) and with at least one lower turbine feed (8) Which comprises a nozzle-type guide device directed against the turbine rotor (16), characterized in that the turbine blades (19), which run in the form of an arrow between two end walls (20), have two inclined, starting from the end walls (20) with respect to a central plane ne (21) between the end walls (20) have symmetrical, continuously merging blade sections (22).
2. Wehranlage nach Anspruch 1 , dadurch gekennzeichnet, dass die beiden Schaufelabschnitte (22) in Drehrichtung des Turbinenrotors (16) konvergieren. 2. Weir system according to claim 1, characterized in that the two blade sections (22) converge in the direction of rotation of the turbine rotor (16).
3. Wehranlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Freistrahlturbine (7) auf einer Schützentafel (3) des Wehrs (1 ) angeordnet ist. 3. Weir system according to claim 1 or 2, characterized in that the free jet turbine (7) on a rifle board (3) of the weir (1) is arranged.
4. Wehranlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die4. Weir system according to claim 1 or 2, characterized in that the
Freistrahlturbine (7) in an den Wehrkanalwänden (26) angeordneten Führungen (25) der Höhe nach verschiebbar gelagert ist.
Free jet turbine (7) is mounted so as to be displaceable in height in guides (25) arranged on the weir channel walls (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19798525.2A EP3884149A1 (en) | 2018-11-22 | 2019-10-25 | Weir system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA60211/2018 | 2018-11-22 | ||
| AT602112018A AT521495B1 (en) | 2018-11-22 | 2018-11-22 | DEFENSE SYSTEM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020102835A1 true WO2020102835A1 (en) | 2020-05-28 |
Family
ID=68470210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/AT2019/060355 WO2020102835A1 (en) | 2018-11-22 | 2019-10-25 | Weir system |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3884149A1 (en) |
| AT (1) | AT521495B1 (en) |
| WO (1) | WO2020102835A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023015327A1 (en) | 2021-08-09 | 2023-02-16 | Staudt Friedrich | Weir system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110467B (en) * | 2022-07-06 | 2023-09-29 | 江苏文水信息科技有限公司 | Water source scheduling and diversion device and method for dam reservoir |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009029794A1 (en) * | 2008-06-23 | 2010-01-14 | Christoph Hermesmeier | Water wheel for producing potential energy between back water and under water in retaining dam, has locking shoe protruding with sweep-angle in direction of motion of paddles in arrow shaped manner |
| AT510320A1 (en) * | 2010-08-24 | 2012-03-15 | Kba Moedling Ag Maschf | HYDRO POWER JAM PRESS |
| WO2012129586A2 (en) | 2011-03-31 | 2012-10-04 | Staudt Friedrich | Weir plant |
| JP2015090074A (en) * | 2013-11-05 | 2015-05-11 | 鐵太郎 笹倉 | Water drop type water turbine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT510073B1 (en) * | 2010-07-14 | 2016-12-15 | Maschf Kba-Mödling Ag | HYDRO POWER JAM PRESS |
-
2018
- 2018-11-22 AT AT602112018A patent/AT521495B1/en active
-
2019
- 2019-10-25 WO PCT/AT2019/060355 patent/WO2020102835A1/en unknown
- 2019-10-25 EP EP19798525.2A patent/EP3884149A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009029794A1 (en) * | 2008-06-23 | 2010-01-14 | Christoph Hermesmeier | Water wheel for producing potential energy between back water and under water in retaining dam, has locking shoe protruding with sweep-angle in direction of motion of paddles in arrow shaped manner |
| AT510320A1 (en) * | 2010-08-24 | 2012-03-15 | Kba Moedling Ag Maschf | HYDRO POWER JAM PRESS |
| WO2012129586A2 (en) | 2011-03-31 | 2012-10-04 | Staudt Friedrich | Weir plant |
| JP2015090074A (en) * | 2013-11-05 | 2015-05-11 | 鐵太郎 笹倉 | Water drop type water turbine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023015327A1 (en) | 2021-08-09 | 2023-02-16 | Staudt Friedrich | Weir system |
Also Published As
| Publication number | Publication date |
|---|---|
| AT521495B1 (en) | 2020-02-15 |
| EP3884149A1 (en) | 2021-09-29 |
| AT521495A4 (en) | 2020-02-15 |
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