WO2001090574A1 - Device for exploiting hydropower - Google Patents

Device for exploiting hydropower Download PDF

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Publication number
WO2001090574A1
WO2001090574A1 PCT/EP2001/005597 EP0105597W WO0190574A1 WO 2001090574 A1 WO2001090574 A1 WO 2001090574A1 EP 0105597 W EP0105597 W EP 0105597W WO 0190574 A1 WO0190574 A1 WO 0190574A1
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WO
WIPO (PCT)
Prior art keywords
shaft
hydropower
flow
channels
baffle
Prior art date
Application number
PCT/EP2001/005597
Other languages
German (de)
French (fr)
Inventor
Maximilian Blomeier
Original Assignee
Lülsdorf, Detlef
Sauer, Marcus
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 Lülsdorf, Detlef, Sauer, Marcus filed Critical Lülsdorf, Detlef
Priority to AU65977/01A priority Critical patent/AU6597701A/en
Publication of WO2001090574A1 publication Critical patent/WO2001090574A1/en

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Classifications

    • 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
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
    • F03B17/063—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having no movement relative to the rotor during its rotation
    • 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

  • Device for using hydropower with a shaft forming a towing section and a plurality of impact elements arranged in the shaft, which are fastened to a circumferential holding means.
  • Such a device is known from DE-A 31 14 847.
  • the shaft forming the drag line forces the inflowing water against the impact elements and prevents the inflowing water from evading the flow resistance caused by the impact elements. It is particularly preferable to arrange the shaft in such a way that the shaft is completely filled with water, i.e. that the inlet opening of the shaft is arranged below the water surface.
  • the flow initially impacts the impact element entering the shaft at its initial speed, is slowed down by this and continues to drag the impact element over the towing distance at a reduced flow speed.
  • the water arranged in an intermediate space between adjacent baffle elements and the surrounding baffle elements move at almost the same speed without back pressure being applied to the baffle elements.
  • the energy consumption at the first baffle element in the direction of flow in the towing section is greatest. In the direction of the end of the towing section, the flow energy gained in the towing section decreases drastically.
  • the present invention has for its object to provide a device for using hydropower of the type mentioned with improved efficiency.
  • the aforementioned device for using hydropower is developed by closed channels running parallel to the shaft, the outlet openings of which open into the shaft, outlet openings of different channels being arranged one behind the other in the flow direction.
  • the channels of the device according to the invention run parallel to the shaft, ie the effective flow cross section of the individual channels lies at the inlet opening of the channels parallel to the cross section of the shaft.
  • Water flowing against the device is introduced at undiminished speed into the shaft and into the channels located to the side of the shaft, preferably at a height in the direction of flow.
  • the water guided in the channels is not braked at the first impact element located in the shaft, but at another impact element located further to the exit of the towing line.
  • the baffle elements lying in the towing section which are preceded by a further baffle element in the direction of flow, are thus subjected to the unrestrained flow of a river or the like in the device according to the invention. The efficiency is increased.
  • Individual outlet openings arranged one behind the other in the flow direction are preferably assigned to different intermediate spaces formed between two successive baffle elements. At least one current flowing through one of the channels strikes each gap. To align the flow supplied through the individual channels, it may be preferable to provide an outlet opening on opposite walls of the channel, so that the velocity components extending at right angles to the direction of rotation of the impact elements overlap and equalize the flow introduced into the interspaces through the channels.
  • a back pressure acting against the direction of rotation of the impact elements is reliably avoided according to a preferred embodiment of the present invention by outlet channels which are arranged in the intermediate spaces and communicate with the flow surrounding the device. Excess water is released to the surrounding flow through these outlet channels.
  • the impact means For the best possible use of water conducted laterally through the channels, it is preferable to design the impact means with a plurality of impact surfaces arranged one behind the other in the flow direction.
  • the baffle surfaces are arranged in coordination with the design and arrangement of the main flow direction of the flow introduced into the intermediate spaces by the channels.
  • the impact surfaces are preferably Chen arranged in a V-shape, which is particularly preferred in view of a gentle immersion of the baffles.
  • a structurally particularly simple embodiment is formed in that the impact elements are fastened to running frames mounted on rollers, which are fastened to the circumferential holding means.
  • the impact means are guided through the running frames in the direction of rotation. All forces in a direction perpendicular to the direction of rotation are borne by the rollers. This leads to relatively little wear on the holding means. The frictional stress of the device is lower overall, which increases the efficiency.
  • the rollers are preferably guided in a prismatic guide so that movement of the impact elements perpendicular to the direction of rotation of the impact elements and in the axial direction of the rollers is also prevented.
  • the impact means can be guided close to the channel.
  • Figure 1 is a side view of an embodiment of an inventive
  • Figure 2 is a top view of the embodiment shown in Figure 1;
  • Figure 3 is an end view of the embodiment shown in Figures 1 and 2;
  • Figure 4 is a sectional view of the guidance of the impact means in one embodiment of the present invention and
  • Figure 5 is a plan view of a portion of an embodiment of an impact means.
  • the exemplary embodiment of a device for using hydropower shown in FIGS. 1 to 3 is formed on a float 2 which carries four deflection rollers 4 - 10 provided in pairs.
  • the float 2 has a horizontal parting plane 12, through which a walk-on deck above the water surface is formed at the same time.
  • a base plate 14 is arranged on the underside of the float 2.
  • the parting plane 12 and the base plate 14 enclose a central shaft 16 which is laterally delimited by shaft walls 18.
  • a plurality of, in the present case four, impact elements 20 are arranged in the shaft 16, each of which is connected to one another on its end face by means of a holding means which is in the form of a chain 22 in the present case.
  • the chain 22 is guided all around on the deflection rollers 4-6.
  • the chain 22 is guided obliquely downward between the deflection roller 4 and the deflection roller 6, specifically at an angle of 70-80 ° to the water surface.
  • Such an immersion angle is preferable in view of a gentle immersion and little influence on the flow profile.
  • the impact element is subjected to a dynamic pressure during immersion in the water.
  • a first driver wheel 24 is located on an axis holding the deflection roller 6, which is connected to a second driver wheel 28 via a V-belt 26 and drives a generator 30 which is located in a generator house 32 ,
  • a plurality of channels 34-38 are predominantly provided in pairs.
  • a first intermediate space 40.1 which is located in the shaft 16 between the first impact element 20.1 and the second impact element 20.2 located, an upper channel 34 o and a lower channel 34 u assigned.
  • Two channels 36a, 36b arranged laterally next to the shaft 16 open into the second space 40.2, whereas the third space 40.3 opens outside of the channels 38a, 38b arranged above the aforementioned channels 36a, 36b.
  • the baffle elements 20 are formed here by a plurality of baffle surfaces 42.1-42.4 arranged one behind the other in the flow direction.
  • FIGS. 4 and 5 Details of the baffle surfaces 40.1 and their guidance on the float 2 are shown in FIGS. 4 and 5.
  • FIG. 4 shows a sectional view through the shaft cheeks 18 which laterally delimit the shaft 16.
  • These shaft cheeks 18 have a recess 44 which extends in the circumferential direction of the impact elements 20 and has upper and lower sides which are prism-shaped. Rollers 46 are guided in these prismatic or triangular-shaped recesses, the cross-sectional shape of which corresponds approximately to the cross-sectional shape of the recess 44.
  • Opposing rollers 46 are connected to one another via a common axis 48, an axis 48 being supported on both sides by two rollers 46 each.
  • a running frame 52 is formed by each of these two rollers 46 arranged at the ends, the axle 48 and a bearing piece 50 connecting two rollers 46 to the axle 48, each carrying a set of baffle surfaces 42.
  • the impact surfaces are of identical design, ie the central impact surface 42.1 is also made from two identical components.
  • These baffle parts are flat in the axial direction of the axis 48 and are bent at right angles to the direction of flow and at right angles to the direction of the axis of the axis 48 in the direction of the flow.
  • cheeks 54 are provided at the edge of the baffles 42.1; 42.2 cheeks 54 are provided. The cheeks 54 of baffle surfaces 42 arranged adjacent in the flow direction are such that the flow flows past the baffle surfaces 42.1; 42.2 is almost completely prevented. LIST OF REFERENCE NUMBERS

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Hydraulic Turbines (AREA)
  • Paper (AREA)

Abstract

The invention relates to a device for exploiting hydropower, comprising a shaft (16), which forms a tow section, and several impact elements (20) that are arranged in said shaft and fixed to circulatory retaining means (22). The aim of the invention is to provide a device for exploiting hydropower of the aforementioned type with improved operational efficiency. To achieve this, the aforementioned device for exploiting hydropower is provided with closed channels (36, 38) running parallel to the shaft, whose outlets open into said shaft. The outlets of different channels are arranged one behind the other in the direction of flow.

Description

Vorrichtung zur Nutzung von Wasserkraft Device for using hydropower
Vorrichtung zur Nutzung von Wasserkraft mit einem eine Schleppstrecke bildenden Schacht und mehreren in dem Schacht angeordneten Prallelementen, welche an einem umlaufenden Haltemittel befestigt sind.Device for using hydropower with a shaft forming a towing section and a plurality of impact elements arranged in the shaft, which are fastened to a circumferential holding means.
Eine derartige Vorrichtung ist aus der DE-A 31 14 847 bekannt. Der die Schleppstrecke ausbildende Schacht zwingt das einströmende Wasser gegen die Prallelemente und verhindert, dass das einströmende Wasser dem durch die Prallelemente bewirkten Strömungswiderstand ausweicht. Dabei ist es insbesondere zu bevorzugen, den Schacht derart anzuordnen, dass der Schacht vollständig mit Wasser gefüllt ist, d.h. dass die Einlassöffnung des Schachtes unterhalb der Wasseroberfläche angeordnet ist.Such a device is known from DE-A 31 14 847. The shaft forming the drag line forces the inflowing water against the impact elements and prevents the inflowing water from evading the flow resistance caused by the impact elements. It is particularly preferable to arrange the shaft in such a way that the shaft is completely filled with water, i.e. that the inlet opening of the shaft is arranged below the water surface.
Bei der vorbekannten Vorrichtung zur Nutzung von Wasserkraft prallt die Strömung mit ihrer Anfangsgeschwindigkeit zunächst gegen das in den Schacht einlaufende Prallelement, wird durch dieses verlangsamt und schleppt das Prallelement über die Schleppstrecke mit verminderter Strömungsgeschwindigkeit weiter. Am Ende der Schleppstrecke bewegen sich das in einem Zwischenraum zwischen benachbarten Prallelementen angeordnete Wasser sowie die umlaufenden Prallelemente nahezu mit gleicher Geschwindigkeit, ohne dass ein Staudruck an den Prallelementen anliegt. Die Energieaufnahme an dem in Strömungsrichtung ersten Prallelement in der Schleppstrecke ist am größten. In Richtung auf das Ende der Schleppstrecke nimmt die in der Schleppstrecke gewonnene Strömungsenergie drastisch ab.In the previously known device for the use of hydropower, the flow initially impacts the impact element entering the shaft at its initial speed, is slowed down by this and continues to drag the impact element over the towing distance at a reduced flow speed. At the end of the towing section, the water arranged in an intermediate space between adjacent baffle elements and the surrounding baffle elements move at almost the same speed without back pressure being applied to the baffle elements. The energy consumption at the first baffle element in the direction of flow in the towing section is greatest. In the direction of the end of the towing section, the flow energy gained in the towing section decreases drastically.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Nutzung von Wasserkraft der eingangs genannten Art mit verbessertem Wirkungsgrad bereitzustellen.The present invention has for its object to provide a device for using hydropower of the type mentioned with improved efficiency.
Zur Lösung der obigen Aufgabe wird die vorgenannte Vorrichtung zur Nutzung von Wasserkraft durch parallel zu dem Schacht verlaufende geschlossene Kanäle weitergebildet, deren Auslassöffnung in den Schacht münden, wobei Auslassöffnungen verschiedener Kanäle in Strömungsrichtung hintereinander angeordnet sind. Die Kanäle der erfindungsgemäßen Vorrichtung verlaufen parallel zu dem Schacht, d.h. der wirksame Strömungsquerschnitt der einzelnen Kanäle liegt an der Einlassöffnung der Kanäle parallel zu dem Querschnitt des Schachtes. Gegen die Vorrichtung strömendes Wasser wird mit unverminderter Geschwindigkeit in den Schacht eingeleitet sowie in die seitlich neben dem Schacht, vorzugsweise in Strömungsrichtung auf einer Höhe liegenden Kanäle. Das in den Kanälen geführte Wasser wird nicht an dem ersten in dem Schacht befindlichen Prallelement abgebremst, sondern an einem weiteren, weiter zum Ausgang der Schleppstrecke befindlichen Prallelement. Die in der Schleppstrecke liegenden Prallelemente, denen in Strömungsrichtung ein weiteres Prallelement vorgelagert ist, werden somit bei der erfindungsgemäßen Vorrichtung mit der ungebremsten Strömung eines Flusses oder dergleichen beaufschlagt. Der Wirkungsgrad wird erhöht.To achieve the above object, the aforementioned device for using hydropower is developed by closed channels running parallel to the shaft, the outlet openings of which open into the shaft, outlet openings of different channels being arranged one behind the other in the flow direction. The channels of the device according to the invention run parallel to the shaft, ie the effective flow cross section of the individual channels lies at the inlet opening of the channels parallel to the cross section of the shaft. Water flowing against the device is introduced at undiminished speed into the shaft and into the channels located to the side of the shaft, preferably at a height in the direction of flow. The water guided in the channels is not braked at the first impact element located in the shaft, but at another impact element located further to the exit of the towing line. The baffle elements lying in the towing section, which are preceded by a further baffle element in the direction of flow, are thus subjected to the unrestrained flow of a river or the like in the device according to the invention. The efficiency is increased.
Vorzugsweise sind einzelne in Strömungsrichtung hintereinander angeordnete Auslassöffnungen unterschiedlichen, zwischen zwei aufeinander folgenden Prallelementen ausgebildeten Zwischenräumen zugeordnet. Auf jeden Zwischenraum trifft somit mindestens ein durch einen der Kanäle geführter Strom. Zur Ausrichtung des durch die einzelnen Kanäle zugeführten Stromes kann es zu bevorzugen sein, an gegenüber liegenden Wandungen des Kanals jeweils eine Auslassöffnung vorzusehen, so dass sich die rechtwinklig zur Umlaufrichtung der Prallelemente erstreckenden Geschwindigkeitsanteile der in die Zwischenräume durch die Kanäle eingebrachten Strömung überlagern und egalisieren.Individual outlet openings arranged one behind the other in the flow direction are preferably assigned to different intermediate spaces formed between two successive baffle elements. At least one current flowing through one of the channels strikes each gap. To align the flow supplied through the individual channels, it may be preferable to provide an outlet opening on opposite walls of the channel, so that the velocity components extending at right angles to the direction of rotation of the impact elements overlap and equalize the flow introduced into the interspaces through the channels.
Ein gegen die Umlaufrichtung der Prallelemente wirkender Staudruck wird gemäß einer bevorzugten Ausgestaltung der vorliegenden Erfindung durch Auslasskanäle sicher vermieden, die in den Zwischenräumen angeordnet sind und mit der die Vorrichtung umgebenden Strömung kommunizieren. Durch diese Auslasskanäle wird überschüssiges Wasser an die umgebende Strömung abgegeben.A back pressure acting against the direction of rotation of the impact elements is reliably avoided according to a preferred embodiment of the present invention by outlet channels which are arranged in the intermediate spaces and communicate with the flow surrounding the device. Excess water is released to the surrounding flow through these outlet channels.
Zur bestmöglichen Nutzung von seitlich durch die Kanäle durchgeführtem Wasser ist es zu bevorzugen, das Prallmittel mit mehreren in Strömungsrichtung versetzt hintereinander angeordnete Prallflächen auszubilden. Die Anordnung der Prallflächen erfolgt in Abstimmung mit der Ausbildung und Anordnung der Hauptströmungsrichtung der von den Kanälen in die Zwischenräume eingeleiteten Strömung. Vorzugsweise sind die Prallflä- chen jedoch V-förmig angeordnet, was insbesondere im Hinblick auf ein sanftes Eintauchen der Prallflächen zu bevorzugen ist.For the best possible use of water conducted laterally through the channels, it is preferable to design the impact means with a plurality of impact surfaces arranged one behind the other in the flow direction. The baffle surfaces are arranged in coordination with the design and arrangement of the main flow direction of the flow introduced into the intermediate spaces by the channels. The impact surfaces are preferably Chen arranged in a V-shape, which is particularly preferred in view of a gentle immersion of the baffles.
Es hat sich als zweckmäßig erwiesen, benachbarte Prallflächen an ihren seitlichen Rändern mit Wangen zu versehen, die sich in Strömungsrichtung erstrecken und die ein Hindurchfließen der Strömung zwischen in Strömungsrichtung hintereinander angeordneten Prallflächen verhindern.It has proven to be expedient to provide adjacent baffles on their lateral edges with cheeks which extend in the direction of flow and which prevent the flow from flowing between baffles arranged one behind the other in the flow direction.
Eine konstruktiv besonders einfache Ausgestaltung ist gemäß einer weiteren bevorzugten Ausgestaltung der vorliegenden Erfindung dadurch gebildet, dass die Prallelemente an auf Rollen gelagerten Laufgestellen befestigt sind, welche an dem umlaufenden Haltemittel befestigt sind. Durch die Laufgestelle werden die Prallmittel in Umlaufrichtung geführt. Sämtliche Kräfte in einer Richtung senkrecht zur Umlaufrichtung werden von den Rollen getragen. Dies führt bei dem Haltemittel zu einem verhältnismäßig geringen Verschleiß. Die Reibbeanspruchung der Vorrichtung ist insgesamt geringer, was den Wirkungsgrad erhöht.According to a further preferred embodiment of the present invention, a structurally particularly simple embodiment is formed in that the impact elements are fastened to running frames mounted on rollers, which are fastened to the circumferential holding means. The impact means are guided through the running frames in the direction of rotation. All forces in a direction perpendicular to the direction of rotation are borne by the rollers. This leads to relatively little wear on the holding means. The frictional stress of the device is lower overall, which increases the efficiency.
Vorzugsweise sind die Rollen in einer Prismenführung geführt, so dass auch eine Bewegung der Prallelemente rechtwinklig zur Umlaufrichtung der Prallelemente und in axialer Richtung der Rollen verhindert wird. Bei einer derartigen Ausgestaltung können die Prallmittel dicht anliegend an dem Kanal geführt werden.The rollers are preferably guided in a prismatic guide so that movement of the impact elements perpendicular to the direction of rotation of the impact elements and in the axial direction of the rollers is also prevented. In such a configuration, the impact means can be guided close to the channel.
Weitere Einzelheiten, Vorteile und Merkmale der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels in Verbindung mit der Zeichnung. In dieser zeigen:Further details, advantages and features of the present invention result from the following description of an exemplary embodiment in conjunction with the drawing. In this show:
Figur 1 einer Seitenansicht eines Ausführungsbeispiels einer erfindungsgemäßenFigure 1 is a side view of an embodiment of an inventive
Vorrichtung;Contraption;
Figur 2 eine Draufsicht des in Figur 1 gezeigten Ausführungsbeispiels;Figure 2 is a top view of the embodiment shown in Figure 1;
Figur 3 eine Stirnansicht des in den Figuren 1 und 2 gezeigten Ausführungsbeispiels; Figur 4 eine Schnittansicht der Führung der Prallmittel bei einem Ausführungsbeispiel der vorliegenden Erfindung undFigure 3 is an end view of the embodiment shown in Figures 1 and 2; Figure 4 is a sectional view of the guidance of the impact means in one embodiment of the present invention and
Figur 5 eine Draufsicht eines Teilstücks eines Ausführungsbeispiels eines Prallmittels.Figure 5 is a plan view of a portion of an embodiment of an impact means.
Das in den Figuren 1 bis 3 gezeigte Ausführungsbeispiel einer Vorrichtung zur Nutzung von Wasserkraft ist an einem Schwimmer 2 ausgebildet, welcher vier paarweise vorgesehene Umlenkrollen 4 - 10 trägt. Der Schwimmer 2 weist eine horizontale Trennebene 12 auf, durch die gleichzeitig ein begehbares und oberhalb der Wasseroberfläche liegendes Deck gebildet ist. Auf der Unterseite des Schwimmers 2 ist eine Bodenplatte 14 angeordnet. Die Trennebene 12 und die Bodenplatte 14 schließen einen mittleren Schacht 16 ein, der seitlich durch Schachtwangen 18 begrenzt ist.The exemplary embodiment of a device for using hydropower shown in FIGS. 1 to 3 is formed on a float 2 which carries four deflection rollers 4 - 10 provided in pairs. The float 2 has a horizontal parting plane 12, through which a walk-on deck above the water surface is formed at the same time. A base plate 14 is arranged on the underside of the float 2. The parting plane 12 and the base plate 14 enclose a central shaft 16 which is laterally delimited by shaft walls 18.
In dem Schacht 16 sind mehrere, vorliegend vier Prallelemente 20 angeordnet, die jeweils an ihrer Stirnseite mit einem vorliegend als Kette 22 ausgebildeten Haltemittel miteinander verbunden sind. Die Kette 22 wird umlaufend auf den Umlenkrollen 4 - 6 geführt. Am Einlauf in den Schacht 16, d.h. in Strömungsrichtung am vorderen Einlass des Schachtes 16 wird die Kette 22 zwischen der Umlenkrolle 4 und der Umlenkrolle 6 schräg nach unten geführt, und zwar mit einem Winkel von 70-80 ° zur Wasseroberfläche. Ein derartiger Eintauchwinkel ist im Hinblick auf ein sanftes Eintauchen und eine geringe Beeinflussung des Strömungsprofils zu bevorzugen. Auch werden bei einem entsprechenden Eintauchwinkel die Prallelement während des Eintauchens in das Wasser mit einem Staudruck beaufschlagt.A plurality of, in the present case four, impact elements 20 are arranged in the shaft 16, each of which is connected to one another on its end face by means of a holding means which is in the form of a chain 22 in the present case. The chain 22 is guided all around on the deflection rollers 4-6. At the inlet into shaft 16, i.e. in the flow direction at the front inlet of the shaft 16, the chain 22 is guided obliquely downward between the deflection roller 4 and the deflection roller 6, specifically at an angle of 70-80 ° to the water surface. Such an immersion angle is preferable in view of a gentle immersion and little influence on the flow profile. At a corresponding immersion angle, the impact element is subjected to a dynamic pressure during immersion in the water.
Bei dem in den Figuren 1 - 3 gezeigten Ausführungsbeispiel befindet sich auf einer die Umlenkrolle 6 haltenden Achse ein erstes Mitnehmerrad 24, welches über einen Keilriemen 26 mit einem zweiten Mitnehmerrad 28 verbunden ist und einen Generator 30, welcher sich in einem Generatorhaus 32 befindet, antreibt.In the exemplary embodiment shown in FIGS. 1-3, a first driver wheel 24 is located on an axis holding the deflection roller 6, which is connected to a second driver wheel 28 via a V-belt 26 and drives a generator 30 which is located in a generator house 32 ,
Parallel zu dem Schacht 16 sind mehrere Kanäle 34 - 38 vorwiegend paarweise vorgesehen. So sind beispielsweise einem ersten Zwischenraum 40.1 , welcher sich in dem Schacht 16 zwischen dem ersten Prallelement 20.1 und dem zweiten Prallelement 20.2 befindet, ein oberer Kanal 34 o und ein unterer Kanal 34 u zugeordnet. In den zweiten Zwischenraum 40.2 münden zwei seitlich neben dem Schacht 16 angeordnete Kanäle 36a, 36b, wohingegen dem dritten Zwischenraum 40.3 außerhalb zu den vorgenannten Kanälen 36a, 36b angeordnete Kanäle 38a, 38b münden.Parallel to the shaft 16, a plurality of channels 34-38 are predominantly provided in pairs. For example, there is a first intermediate space 40.1 which is located in the shaft 16 between the first impact element 20.1 and the second impact element 20.2 located, an upper channel 34 o and a lower channel 34 u assigned. Two channels 36a, 36b arranged laterally next to the shaft 16 open into the second space 40.2, whereas the third space 40.3 opens outside of the channels 38a, 38b arranged above the aforementioned channels 36a, 36b.
Wie insbesondere der Figur 2 zu entnehmen ist, sind die Prallelemente 20 vorliegend durch mehrere in Strömungsrichtung hintereinander angeordnete Prallflächen 42.1 - 42.4 gebildet.As can be seen in particular in FIG. 2, the baffle elements 20 are formed here by a plurality of baffle surfaces 42.1-42.4 arranged one behind the other in the flow direction.
Einzelheiten zu den Prallflächen 40.1 und deren Führung an dem Schwimmer 2 sind in den Figuren 4 und 5 gezeigt.Details of the baffle surfaces 40.1 and their guidance on the float 2 are shown in FIGS. 4 and 5.
Figur 4 zeigt eine Schnittansicht durch die den Schacht 16 seitlich begrenzenden Schachtwangen 18. Diese Schachtwangen 18 weisen eine sich in Umlaufrichtung der Prallelemente 20 erstreckende Ausnehmung 44 auf, welche prismenförmig ausgebildete Ober- und Unterseiten aufweist. In diesen prismen- bzw. dreiecksförmigen Ausnehmungen sind Rollen 46 geführt, deren Querschnittsform in etwa der Querschnittsform der Ausnehmung 44 entspricht.FIG. 4 shows a sectional view through the shaft cheeks 18 which laterally delimit the shaft 16. These shaft cheeks 18 have a recess 44 which extends in the circumferential direction of the impact elements 20 and has upper and lower sides which are prism-shaped. Rollers 46 are guided in these prismatic or triangular-shaped recesses, the cross-sectional shape of which corresponds approximately to the cross-sectional shape of the recess 44.
Gegenüberliegende Rollen 46 sind über eine gemeinsame Achse 48 miteinander verbunden, wobei eine Achse 48 beidseitig von jeweils zwei Rollen 46 abgestützt wird. Durch diese jeweils zwei endseitig angeordneten Rollen 46, die Achse 48 sowie ein jeweils zwei Rollen 46 mit der Achse 48 verbindendes Lagerstück 50 ist ein Laufgestell 52 gebildet, welches jeweils einen Satz von Prallflächen 42 trägt. Die Prallflächen sind in dem vorliegenden Fall identisch ausgebildet, d.h. auch die mittlere Prallfläche 42.1 ist aus zwei identischen Bestandteilen hergestellt. Diese Prallflächenteile sind in axialer Richtung der Achse 48 eben und rechtwinklig zur Strömungsrichtung sowie rechtwinklig zur Achserichtung der Achse 48 konvex in Richtung auf die Strömung gebogen. An dem Rand der Prallflächen 42.1 ; 42.2 sind Wangen 54 vorgesehen. Die Wangen 54 in Strömungsrichtung benachbart angeordneter Prallflächen 42 sind derart, dass ein Vorbeiströmen der Strömung an den in Strömungsrichtung versetzt zueinander angeordneten Prallflächen 42.1 ; 42.2 nahezu vollständig verhindert wird. BezugszeichenlisteOpposing rollers 46 are connected to one another via a common axis 48, an axis 48 being supported on both sides by two rollers 46 each. A running frame 52 is formed by each of these two rollers 46 arranged at the ends, the axle 48 and a bearing piece 50 connecting two rollers 46 to the axle 48, each carrying a set of baffle surfaces 42. In the present case, the impact surfaces are of identical design, ie the central impact surface 42.1 is also made from two identical components. These baffle parts are flat in the axial direction of the axis 48 and are bent at right angles to the direction of flow and at right angles to the direction of the axis of the axis 48 in the direction of the flow. At the edge of the baffles 42.1; 42.2 cheeks 54 are provided. The cheeks 54 of baffle surfaces 42 arranged adjacent in the flow direction are such that the flow flows past the baffle surfaces 42.1; 42.2 is almost completely prevented. LIST OF REFERENCE NUMBERS
Schwimmerswimmer
Umlenkrollenguide rollers
Umlenkrollenguide rollers
Umlenkrollenguide rollers
Umlenkrollenguide rollers
Trennebeneparting plane
Bodenplattebaseplate
Schachtshaft
SchachtwangenSchacht cheeks
Prallelementebaffles
KetteChain
Mitnehmerraddriving wheel
Keilriemenfan belt
Mitnehmerraddriving wheel
Generatorgenerator
GeneratorhausgENERATOR
Kanalchannel
Kanalchannel
Kanalchannel
Zwischenraum PrallflächeSpace between baffle
Ausnehmungrecess
Rollerole
Achseaxis
Lagerstückstock items
Laufgestellzimmer
Wange cheek

Claims

Patentansprüche claims
1. Vorrichtung zur Nutzung von Wasserkraft mit einem eine Schleppstrecke bilden den Schacht (16) und mehreren in dem Schacht (16) angeordneten Prallelementen (20), welche an einem umlaufenden Haltemittel (22) befestigt sind, gekennzeichnet durch parallel zu dem Schacht (14) verlaufende geschlossene Kanäle (34, 36, 38), deren Auslassöffnungen in den Schacht (16) münden, wobei Auslassöffnungen verschiedener Kanäle (34, 36, 38) in Strömungsrichtung hintereinander angeordnet sind.1. Apparatus for using hydropower with a towing section form the shaft (16) and a plurality of baffle elements (20) arranged in the shaft (16), which are fastened to a circumferential holding means (22), characterized by parallel to the shaft (14 ) running closed channels (34, 36, 38), the outlet openings of which open into the shaft (16), outlet openings of different channels (34, 36, 38) being arranged one behind the other in the direction of flow.
2. Vorrichtung zur Nutzung von Wasserkraft nach Anspruch 1 , dadurch gekennzeichnet, dass einzelne in Strömungsrichtung hintereinander angeordnete Auslassöffnungen unterschiedlichen, zwischen zwei aufeinander folgenden Prallelementen (20.1 , 20.2.) ausgebildeten Zwischenräumen (40.1) zugeordnet sind.2. Device for the use of hydropower according to claim 1, characterized in that individual outlet openings arranged one behind the other in the flow direction are assigned different gaps (40.1) formed between two successive baffle elements (20.1, 20.2.).
3. Vorrichtung zur Nutzung von Wasserkraft nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass einzelne Einlassöffnungen der Kanäle (36, 38) an einer die Eintrittsöffnung des Schachtes (16) aufweisenden Stirnseite angeordnet sind.3. Device for using hydropower according to claim 1 or 2, characterized in that individual inlet openings of the channels (36, 38) are arranged on an end face having the inlet opening of the shaft (16).
4. Vorrichtung zur Nutzung von Wasserkraft nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Zwischenräume (40) mit der Außenseite kommunizierende Auslasskanäle aufweisen, durch welche Wasser von dem Zwischenraum (40) am die umgebende Strömung abgegeben wird.4. A device for using hydropower according to claim 2 or 3, characterized in that the intermediate spaces (40) have outlet channels communicating with the outside, through which water is released from the intermediate space (40) to the surrounding flow.
5. Vorrichtung zur Nutzung von Wasserkraft nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Prallelemente (20) mehrere in Strömungsrichtung versetzt hintereinander angeordnete Prallflächen (42) aufweisen.5. Device for using hydropower according to one of the preceding claims, characterized in that the baffle elements (20) have a plurality of baffle surfaces (42) arranged one behind the other in the flow direction.
6. Vorrichtung zur Nutzung von Wasserkraft nach Anspruch 5, dadurch gekennzeichnet, dass die Prallflächen (42) V-förmig angeordnet sind.6. Device for using hydropower according to claim 5, characterized in that the baffle surfaces (42) are arranged in a V-shape.
7. Vorrichtung zur Nutzung von Wasserkraft nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass benachbarte Prallflächen (42) sich in Strömungsrichtung erstreckende Wangen (54) aufweisen. 7. Device for using hydropower according to claim 5 or 6, characterized in that adjacent baffles (42) have cheeks (54) extending in the direction of flow.
8. Vorrichtung zur Nutzung von Wasserkraft nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Prallelemente (20) an auf Rollen (46) gelagerten Laufgestellen (52) befestigt sind, welche an dem umlaufenden Haltemittel (22) befestigt sind.8. Device for using hydropower according to one of the preceding claims, characterized in that the impact elements (20) are attached to rollers (46) mounted on bogies (52) which are attached to the circumferential holding means (22).
9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Rollen (46) in einer Prismenführung geführt sind.9. The device according to claim 8, characterized in that the rollers (46) are guided in a prismatic guide.
10. Vorrichtung zur Nutzung von Wasserkraft nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass zu den in Strömungsrichtung auf einer Höhe angeordneten Prallflächen (42.1; 42.2; 42.3; 42.4) ein separates Laufgestell (52) vorgesehen ist. 10. Device for using hydropower according to one of the preceding claims, characterized in that a separate bogie (52) is provided for the baffle surfaces (42.1; 42.2; 42.3; 42.4) arranged at a height in the flow direction.
PCT/EP2001/005597 2000-05-24 2001-05-16 Device for exploiting hydropower WO2001090574A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU65977/01A AU6597701A (en) 2000-05-24 2001-05-16 Device for exploiting hydropower

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DE20009337U DE20009337U1 (en) 2000-05-24 2000-05-24 Device for using hydropower
DE20009337.1 2000-05-24

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179147A (en) * 2015-07-14 2015-12-23 天津大学 Caterpillar band moving type ocean current power generating device and power generating method thereof

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB188728A (en) * 1921-07-23 1922-11-23 Armin Tetetleni Improvements relating to turbines and the like
FR549645A (en) * 1921-04-02 1923-02-15 water elevator
FR551668A (en) * 1923-04-11
US1687923A (en) * 1924-03-12 1928-10-16 Carl J Baer Current motor
FR1239390A (en) * 1959-07-15 1960-08-26 Installation for the collection of hydraulic energy
DE2418660A1 (en) * 1974-04-18 1975-10-30 Markgraf Waldomir Mechanism for deriving energy from slow streams OF WATER - has submerged belt system with collapsible driving vanes
US4184807A (en) * 1978-07-10 1980-01-22 Berg George W Reversible hydraulic engine
FR2461830A1 (en) * 1979-07-19 1981-02-06 Zamboni Mario Rotary to linear motion hydraulic energy converter - has chain conveyor running over rollers with submerged paddles in running water
FR2490282A1 (en) * 1980-09-12 1982-03-19 Debreczeny Georges Small hydroelectric power station - has continuous belt carrying blades driven by flow of water to operate hydraulic pumps driving motor and alternator
US4352990A (en) * 1981-03-12 1982-10-05 Aucoin Jr Ano J Water powered electric generator
DE3114847A1 (en) 1981-04-13 1983-02-10 Gotthard 4150 Krefeld Flor Cascade hydro-electric power station for all flowing waters

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR551668A (en) * 1923-04-11
FR549645A (en) * 1921-04-02 1923-02-15 water elevator
GB188728A (en) * 1921-07-23 1922-11-23 Armin Tetetleni Improvements relating to turbines and the like
US1687923A (en) * 1924-03-12 1928-10-16 Carl J Baer Current motor
FR1239390A (en) * 1959-07-15 1960-08-26 Installation for the collection of hydraulic energy
DE2418660A1 (en) * 1974-04-18 1975-10-30 Markgraf Waldomir Mechanism for deriving energy from slow streams OF WATER - has submerged belt system with collapsible driving vanes
US4184807A (en) * 1978-07-10 1980-01-22 Berg George W Reversible hydraulic engine
FR2461830A1 (en) * 1979-07-19 1981-02-06 Zamboni Mario Rotary to linear motion hydraulic energy converter - has chain conveyor running over rollers with submerged paddles in running water
FR2490282A1 (en) * 1980-09-12 1982-03-19 Debreczeny Georges Small hydroelectric power station - has continuous belt carrying blades driven by flow of water to operate hydraulic pumps driving motor and alternator
US4352990A (en) * 1981-03-12 1982-10-05 Aucoin Jr Ano J Water powered electric generator
DE3114847A1 (en) 1981-04-13 1983-02-10 Gotthard 4150 Krefeld Flor Cascade hydro-electric power station for all flowing waters

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AU6597701A (en) 2001-12-03
DE20009337U1 (en) 2000-08-10

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