EP3884149A1 - Système de barrage - Google Patents

Système de barrage

Info

Publication number
EP3884149A1
EP3884149A1 EP19798525.2A EP19798525A EP3884149A1 EP 3884149 A1 EP3884149 A1 EP 3884149A1 EP 19798525 A EP19798525 A EP 19798525A EP 3884149 A1 EP3884149 A1 EP 3884149A1
Authority
EP
European Patent Office
Prior art keywords
turbine
weir
end walls
free jet
blades
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.)
Withdrawn
Application number
EP19798525.2A
Other languages
German (de)
English (en)
Inventor
Friedrich STAUDT
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3884149A1 publication Critical patent/EP3884149A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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 .
  • 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.
  • 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.
  • 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

L'invention concerne un système de barrage, présentant un barrage (1), une turbine Pelton (7) disposée en aval du barrage (1) dans le sens d'écoulement, déplaçable en fonction de la hauteur, agencée sous une rampe de débordement (24) et au moins une alimentation (8) inférieure de turbine, qui comprend un dispositif de guidage de type buse, orienté contre le rotor de turbine (16). Pour obtenir des conditions de construction avantageuses, selon l'invention, les pales de turbine (19) s'étendant en forme de flèche entre deux parois frontales (20) présentent deux sections de pale (22) se transformant en continu l'une dans l'autre, partant des parois frontales (20), inclinées l'une vers l'autre, symétriques par rapport à un plan central (21) entre les parois frontales (20).
EP19798525.2A 2018-11-22 2019-10-25 Système de barrage Withdrawn EP3884149A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT602112018A AT521495B1 (de) 2018-11-22 2018-11-22 Wehranlage
PCT/AT2019/060355 WO2020102835A1 (fr) 2018-11-22 2019-10-25 Système de barrage

Publications (1)

Publication Number Publication Date
EP3884149A1 true EP3884149A1 (fr) 2021-09-29

Family

ID=68470210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19798525.2A Withdrawn EP3884149A1 (fr) 2018-11-22 2019-10-25 Système de barrage

Country Status (3)

Country Link
EP (1) EP3884149A1 (fr)
AT (1) AT521495B1 (fr)
WO (1) WO2020102835A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023015327A1 (fr) 2021-08-09 2023-02-16 Staudt Friedrich Système de déversoir
CN115110467B (zh) * 2022-07-06 2023-09-29 江苏文水信息科技有限公司 一种大坝水库的水源调度分流装置及其方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009029794A1 (de) * 2008-06-23 2010-01-14 Christoph Hermesmeier Wasserrad
AT510073B1 (de) * 2010-07-14 2016-12-15 Maschf Kba-Mödling Ag Wasserkraft-staudruckmaschine
AT510320B1 (de) * 2010-08-24 2018-03-15 Maschf Kba Moedling Aktiengesellschaft Wasserkraft-staudruckmaschine
AT511229B1 (de) * 2011-03-31 2013-02-15 Staudt Friedrich Wehranlage
JP5683039B1 (ja) * 2013-11-05 2015-03-11 鐵太郎 笹倉 落水型水車

Also Published As

Publication number Publication date
AT521495B1 (de) 2020-02-15
AT521495A4 (de) 2020-02-15
WO2020102835A1 (fr) 2020-05-28

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