EP2174003A2 - Dispositif de production d'énergie à partir d'un courant de fluide - Google Patents

Dispositif de production d'énergie à partir d'un courant de fluide

Info

Publication number
EP2174003A2
EP2174003A2 EP08784959A EP08784959A EP2174003A2 EP 2174003 A2 EP2174003 A2 EP 2174003A2 EP 08784959 A EP08784959 A EP 08784959A EP 08784959 A EP08784959 A EP 08784959A EP 2174003 A2 EP2174003 A2 EP 2174003A2
Authority
EP
European Patent Office
Prior art keywords
blade
drive shaft
housing
ball bearing
bearing head
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Withdrawn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
EP08784959A
Other languages
German (de)
English (en)
Inventor
Georg Hamann
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
Priority to EP10005776A priority Critical patent/EP2224125A3/fr
Priority to EP10005775A priority patent/EP2221472A3/fr
Publication of EP2174003A2 publication Critical patent/EP2174003A2/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Withdrawn legal-status Critical Current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
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
    • F03D1/025—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors coaxially arranged
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/02—Casings
    • 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"
    • F03B17/061—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 in flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/04—Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/14—Rotors having adjustable blades
    • F03B3/145—Mechanisms for adjusting the blades
    • 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
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • 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
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • 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
    • F05B2210/00—Working fluid
    • F05B2210/16—Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/12—Fluid guiding means, e.g. vanes
    • F05B2240/124—Cascades, i.e. assemblies of similar profiles acting in parallel
    • 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
    • F05B2240/40—Use of a multiplicity of similar components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/25—Geometry three-dimensional helical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/36—Retaining components in desired mutual position by a form fit connection, e.g. by interlocking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present invention relates generally to a device for generating energy from a fluid flow, and more particularly relates to a Anstellwinkeleinstell- and holding device for a blade of such a system for generating energy from a system fluid flow guided by the plant according to the preamble of claim 1, a blade according to the invention according to claim 20, a housing for such a plant for generating energy from a fluid flow guided by the system according to the preamble of claim 21 and a ball bearing head according to the preamble of claim 30.
  • Known devices for generating energy from a fluid flow are disclosed, for example in U.S. Patent 1,780,584 or U.S. Patent 1,903,545.
  • BESTATIGUNGSKOPIE Shovels in the angle of attack relative to the fluid flow and / or the drive shaft is not possible in the known devices and also not provided.
  • the blade pitch adjustment and holding device of the present invention comprises a plurality of blades along a drive shaft of the plant, each axially and radially spaced therefrom, each of them Blade at its end facing the drive shaft is releasably secured to the drive shaft by means of a holding device acting positively in the axial direction of the blade, and each blade in the installed state in a plane perpendicular to the axial direction of the blade and rotatable relative to the drive shaft by means of an adjusting and is formed fixable.
  • each individual blade can be fixed or released by the form-locking holding device acting in the axial direction of the blade, so that each individual blade can be detached from the drive shaft easily and quickly and replaced by a new blade in the event of a necessary replacement can be.
  • each individual blade can be adjusted or finely adjusted by means of the adjusting device in the angle of attack without the blade having to be removed.
  • each of the plurality of blades along the drive shaft is adjustable to the fluid flow.
  • the inventive device for generating renewable energy from a water or wind flow is used.
  • an exhaust gas flow It is crucial that an existing fluid flow is utilized, in which the present invention is used to transmit the kinetic energy contained in the fluid or exhaust gas flow through the thereby forced rotation of the blades on the drive shaft, which in turn and preferably drives a generator for generating electrical energy.
  • the blades are designed as a repeller to obtain optimum efficiency in utilizing the kinetic energy of the fluid flow.
  • a fine adjustment of the angle of attack of the blade is very easy on site, ie at the site of the device for generating energy from the fluid flow, possible borrowed by a fastener, which is preferably designed as a screw and which fixes the adjusting disc is released and is slightly rotated about the axis of the blade.
  • the rotation of the adjusting disk, the blade is rotated about its own axis, wherein the adjustment is performed by means of a setting scale.
  • the fastener is tightened again and fixed the adjusting disc and thus the blade.
  • each blade according to claim 20 Due to the structural design of each blade according to claim 20, both the adjustability in the angle of attack and the easy replacement of each blade can be ensured.
  • the groove according to the invention at the end of the blade facing the drive shaft enables the form-locking fixing of the blade acting in the axial direction of the blade.
  • a fastening element which is preferably designed as a screw engaging in this groove, fixes the blade in the axial direction of the blade.
  • the additionally provided toothing on the drive shaft end facing the blade allows the rotation of the blade in a plane perpendicular to the axis of the blade, the axial positive engagement ensures that the blade in the axial direction is not subject to displacement when it is rotated.
  • An outstanding aim of the present invention is also to make the entire device for generating energy from the fluid flow as easy to maintain as possible. This is also consistent with the above-mentioned task, which among other things calls the simple interchangeability of the blades.
  • a housing which surrounds the device, divided into segments, which are fixed by means of releasable fastening means to each other.
  • These segments are preferably cylindrical surface-shaped and cylindrical by means of a respective connection profile and provided on the circumference of the segments flanges or edges to each other easy to fix and to solve again. For example, if a particular bucket in the apparatus is to be replaced or repaired, only one of these pipe segments needs to be loosened and removed to easily gain access to that bucket.
  • the segments may be provided in three parts or four parts around the circumference of the device.
  • Another object of the present invention is to provide a low maintenance ball bearing head, which ball bearing head is provided to support the drive shaft within the plant for generating energy from the fluid flow passing through the device.
  • a ball bearing head according to claim 30, which has a base body which has a plurality of extensions which extend in the radial direction from the base body to the outside and form receptacles for supports which support the drive shaft relative to the housing of the plant.
  • this ball bearing head according to the invention is provided in each case at a distance of about 1 m along the drive shaft of the system.
  • This multiple storage of the drive shaft causes a very low-vibration running of the drive shaft, which in turn benefits the life and also supports low-noise operation of the entire device.
  • Figure 1 is a schematic representation of a portion of the plant according to the invention for the production of energy, wherein a part of a housing of the plant has been left away to show the interior of the plant.
  • FIG. 2 shows a perspective view of a pitch angle adjusting and holding device according to the invention for a blade (or for two blades) of the plant for generating energy from a fluid flow conducted through the plant;
  • FIG. 3 shows a further perspective view of the Anstellwinkeleinsteil- and holding device according to the figure 2, wherein bearing shells and an adjusting disc are shown highlighted with a setting scale.
  • FIG. 4 is an exploded perspective view of the Anstellwinkeleinstell- and holding device according to the invention according to Figures 2 and 3;
  • FIG. 5 shows a further perspective exploded view of the Anstellwinkeleinstell- and holding device according to the invention
  • FIG. 6 shows a further perspective exploded view of the Anstellwinkeleinstell- and holding device according to the invention.
  • FIG. 7 shows a perspective view of the Anstellwinkeleinstell- and holding device according to the invention according to the figure 2, but from another viewing direction.
  • Figure 8 shows an enlarged perspective view of the blade according to FIG. 2 and the adjusting disk according to FIG. 3;
  • Figure 9 is a schematic representation of a portion of the plant according to the invention for generating energy, this perspective view being a view into the interior of the plant to show the support of a drive shaft in a housing.
  • Fig. 10 is an enlarged perspective view of a portion of the system of Fig. 9, with the blades shown schematically and showing the attachment of the support to the housing;
  • Fig. 11 shows several representations of a pipe segment as part of the housing
  • Fig. 12 is a schematic representation of the plant anchored in a riverbed with water flowing through the plant;
  • Fig. 13 is a schematic representation of a portion of the energy production plant of the present invention, similar to Fig. 1, with a portion of a housing of the plant being omitted to show the interior of the plant, but with one over the circumference of the housing Tripartition of the segments;
  • connection profile 14 shows several representations of a connection profile as part of the housing of the installation, which connects the pipe segments in the axial direction with one another;
  • Figure 15 shows two representations of a support which supports the drive shaft of the system relative to the housing.
  • FIG. 16 shows several representations of a sliding block, which serves for anchoring or fastening the support according to FIG. 15 to the housing or the connection profile according to FIG. 14;
  • FIG. 17 is a cross-sectional view of a ball bearing head according to the invention
  • Fig. 18 is a perspective view of a sleeve installed within the ball bearing head of Fig. 17;
  • FIG. 19 shows a perspective view of a further embodiment of a ball bearing head according to FIG. 17.
  • a plant 1 for generating energy from a fluid flow conducted through the plant 1 in the axial direction comprises a tubular housing which consists of a plurality of pipe segments 2 ,
  • four pipe segments 2, each of which extends over 90 ° in the circumferential direction of the housing are fastened to one another in the axial direction of the housing by means of a respective connecting profile 3.
  • a plurality of screws serves as fastening means between each tube segment 2 and each connecting profile 3.
  • this screw connection is designated by the reference numeral 34. Details of the tube segment 2 and the connection profile 3 will be described below with reference to FIGS. 11 to 14. So there are four pipe segments 2 and four connection profiles 3 viewed over the circumference arranged side by side and fastened together to form the rohrfschreibmige housing the system 1.
  • the pipe segments 2 are connected in series or arranged and connected via a respective flange 10 at each pipe segment 2 together.
  • the two flanges 10 of two adjacent pipe segments 2 in the axial direction are detachably connected to each other by means of a plurality of screws 11.
  • the number of series-connected pipe segments 2 for the formation of the plant 1 is arbitrary.
  • the plant 1 is inserted into a flowing fluid, such as a flow, so that the flowing water in the axial direction through the cylindrical Housing of the system 1 flows and the blades 5 shown in FIG. 1 are set in rotation about a drive shaft 6.
  • a flowing fluid such as a flow
  • the drive shaft 6 is arranged centrally within the housing of the pipe segments 2 and supported by a plurality of supports 4 relative to the housing.
  • the supports 4 will be described further below and with reference to FIG.
  • the supports 4 are each on the connection profiles 3 and thus radially outboard - with respect to the support - releasably secured to the housing of the system 1, and the supports 4 are fixed radially inwardly on a ball bearing head 12, each carrying at least one ball bearing the drive shaft 6 ,
  • the ball bearing head 12 is provided, which is supported by means of the supports 4 on the housing of the system 1.
  • the components mentioned so far are mounted on each other essentially without play.
  • the drive shaft 6 can rotate freely and as smoothly as possible in the plurality of ball bearing heads 12, four of which are shown in FIG.
  • the blades 5 Between the ball bearing heads 12 are the blades 5, which are rotatably connected via bearing shells 7 with the drive shaft 6.
  • the number of blades 5 is freely selectable and adapted to the ambient conditions - i. the fluid flow - customizable.
  • 6 pairs of blades 5 are installed between two ball bearing heads 12.
  • a freely selectable number of blades 5 bwz. See blade pairs between each two ball bearing heads 12 provide.
  • blades 5 are formed like a repeller. That is, the cross-section of the profile of each blade 5 is selected such that maximum removal of kinetic energy from the passing fluid occurs and each blade 5 is rotated in rotation about the drive shaft 6 by the fluid flowing past it.
  • a drive shaft output 9 can still be seen in FIG.
  • the rotation of the drive shaft 6 can be derived by means of a gear or by means of a V-ribbed belt and fed to a generator for generating electrical energy.
  • the rotation of the drive shaft 6 may also be used directly to drive another machine, such as a water pump, to pump water from a river or lake to adjacent fields or to pump in pipelines.
  • FIG. 1 a particularly preferred embodiment of Anstellwinkeleinstell- and holding device according to the invention is shown.
  • the number of bearing shells 7, 7 ' and the blades 5, 5 ' is in each case two, but it is also possible to provide a different number of blades and / or bearing shells per level.
  • "plane” is to be understood as meaning a pair of blades 5, wherein six planes of blades 5 are shown between two ball bearing heads 12. These "planes" lie one behind the other in the axial direction of the system 1 or the drive shaft 6 are flowing through or flowing around the flowing fluid one after the other.
  • the blades 5 of a plane to the blades 5 of the front and rear plane arranged in the circumferential direction are arranged offset from one another.
  • FIG. 1 shows, for example, an offset of the blades from 30 ° from one plane to the next plane.
  • FIG. 2 there is shown schematically the drive shaft 6, which has an outer toothing.
  • the drive shaft 6 encompassing two bearing shells 7 and 7 'are provided, wherein the details of the bearing shell 7 can be seen better in the figure 4.
  • Each of the bearing shells 7 and 7 ' has an inner toothing 27, which is positively engaged with the outer toothing 26 of the drive shaft 6 when the bearing shells 7 and 7 ' are mounted.
  • Each bearing shell 7 is designed essentially in the shape of a half-cylinder shell or hemispherical shell, so that a cavity for receiving the drive shaft 6 is formed on the inside.
  • passages (in the figure 4 at reference numeral 27) are provided for the drive shaft 6.
  • Two bearing shells 7 and 7 ' which are mounted on each other and engage around the drive shaft 6, form a substantially spherical or cylindrical housing, on which the blades 5 and 5 ' are mounted extending radially outward.
  • the two bearing shell halves 7 and 7 ' which surround in pairs the drive shaft 6, by means of several screws 20 and nuts 21 to be fastened to each other releasably.
  • the bearing shells 7 and 7 ' are preferably made as a diecast in aluminum.
  • the two bearing shells 7 and 7 ' are preferably screwed together by means of four screws 20 and four nuts 21.
  • an adjusting disc 8 is provided, which on the one hand has an opening 29 (see FIGS. 5 or 8) and on the other hand a longitudinal slot 22.
  • an opening 29 which is of circular design, and on the inner periphery an internal toothing 16 has, one end of the blade 5 is inserted into the bearing shell 7.
  • a supporting surface 30 of the blade 5 rests on the adjusting disk 8 concentrically with the opening 29 when these components are mounted together.
  • a first cylindrical section 31, a groove 15 following in the axial direction A of the blade 5 and a subsequent second cylindrical section 32 pass through the opening 29 of the adjusting disc 8 and are inserted into an opening 28 in an extension 23 of the bearing shell 7.
  • the groove 15 is aligned in the end of the blade 5 with holes 24 in the extension 23 of the bearing shell 7. Through these holes 24 screws 14 are inserted and screwed with a nut on the opposite side of the bore 24. The screws 14 pass through the groove 15 in a form-fitting manner and fix the blade 5 in the axial direction of the blade 5 and relative to the bearing shell 7.
  • the external teeth 17 engages the blade 5 in the internal teeth 16 on the adjusting disc 8 positively and substantially free of play. If the adjusting disk 8 is now rotated in the longitudinal direction of the longitudinal slot 22 and about the axis A (FIG. 4) of the blade 5, the blade 5 is rotated about the axis A of the blade by means of the engagement between the adjusting disk 8 and the blade 5 on the toothing 16/17 5 with twisted.
  • An adjustment scale 13 which is shown in the drawings by the adjacent lines of the scale, serves as an adjustment for the fine adjustment of the angular position of the blade 5 relative to the bearing shell 7 and the drive shaft 6.
  • the arrival angle of each blade 5 and 5 ' can be Adjust the adjustment disc 8 relative to the drive shaft 6.
  • Angle of attack is to be understood as meaning the angle at which the blade 5 is impinged by the inflowing fluid. In FIG. 1, this angle of attack is shown at approximately 75 °, that is to say that the radially inner part of the blade 5, which is adjacent to the drive shaft 6, is set with its blade surface almost perpendicular to the flow. In other words, the flow of the fluid almost perpendicular to this radially inner blade surface encounters. Since each blade 5, going radially outward, causes a rotation of the blade surface. surface, the direction of impact of the fluid on the blade surface changes depending on the radius about the drive shaft 6.
  • the drive shaft 6 with the ball bearing heads 12 and the bearing shells 7 and 7 ' mounted in the factory first.
  • the two bearing shells 7 and 7 ' for a pair of blades 5 and 5 ' are thereby positively placed by the respective external teeth 26 and internal teeth 27 on the drive shaft 6 and screwed together by means of the plurality of screws 20 and associated nuts 21.
  • the relative angular position between drive shaft 6 and bearing shells 7, 7 ' is coarsely set and selected prior to screwing in and before the intermeshing of said gears.
  • Superimposed planes of blades 5, 5 ' can be arranged by rotation of the bearing shells 7, 7 ' in the circumferential direction before assembly on the drive shaft 6 offset from each other (viewed over the circumference of the drive shaft 6) are arranged.
  • each blade 5 or 5 ' is introduced with the end facing away from the blade surface in the extension 23 of the bearing shell 7 or T until the support surface 30 rests on the adjusting disc 8, which positioned on the support 25 and the extension 23 of this kind is that the cylindrical portion 31 of the blade 5 engages through the opening 29 of the adjusting disc 8.
  • the groove 15 of the blade 5 is then aligned with the bore 24, which is preferably formed in pairs and diametrically opposite with respect to the axis A of the blade 5 in the extension 23 of the bearing shell 7.
  • the blade 5 is fixed in the axial direction.
  • the blade 5 can be rotated about the axis A.
  • the angle of attack of each blade 5 can be adjusted by turning the adjusting disk 8 set. is set the desired angle of attack of the blade 5, the adjusting disc 8 is fixed by tightening the fastening means 18 and thus also fixed the blade 5 in this angular position.
  • FIG. 9 there is shown schematically the system 1 according to the invention in a preferred embodiment, wherein four pipe segments 2 are fastened to one another in the circumferential direction by means of the four connection profiles 3.
  • the axially extending drive shaft 6 Within the resulting cylindrical housing of the tube segments 2 is centrally located the axially extending drive shaft 6, the outer teeth can be seen in Figure 9.
  • the ball bearing heads 12 are arranged one behind the other in the axial direction on this drive shaft 6.
  • 6 ball bearing heads 12 can be seen, which are mounted at a distance from one another and behind one another on the drive shaft 6.
  • the outer toothing of the drive shaft 6 can be seen in each case.
  • a pair of bearing shells is mounted, on which the blades 5 and 5 'are fixed.
  • the blades 5 and 5 ' are simplified and shown only schematically in FIG.
  • an extremely stable device which is characterized by a plurality of supports 4, wherein the supports 4 each between the ball bearing heads 12 and the housing or the connecting profiles 3 make the connection ,
  • the supports 4 At each ball bearing head 12 four supports 4 are provided in the embodiment shown, which are positioned offset by 90 ° to each other over the circumference.
  • the supports 4 engage the ball bearing heads 12 in extensions, which will be described in more detail with reference to the figures 17 to 19.
  • the supports 4 are mounted on the ball bearing heads 12 without play.
  • sliding blocks 33 At the other ends of the supports 4, which are mounted on the connection profile 3 of the housing, are sliding blocks 33, which are shown in the figure 16, as a connecting element to produce a play-free connection between the support 4 and the connection profile 3.
  • each support 4 has a profile which has a cavity 52 to save weight and material and thus costs, as well as the outer shape of each support 4, in contrast to the schematic representation in Figures 9 and 10, a streamlined design has.
  • the support 4 is located in a flowing fluid and constitutes a hindrance for the blades 5 or 5 ' according to FIG. 9, since the blades 5 and 5 ' are intended to remove the kinetic energy of flow from the fluid flowing past and to convert a rotation of the drive shaft 6.
  • the support 4 is formed according to the figure 15 as a wing profile.
  • the pointed end of the support 4 points to the rear (downstream, in the flow direction of the fluid) and the round, thicker end of the support 4 is oriented to the front (upstream). This installation position is also shown in FIG.
  • the supports 4 are preferably made of aluminum and have a wall thickness on which can transmit and absorb the occurring forces and vibrations between the drive shaft 6 and housing safely.
  • a sliding block 33 which is arranged between each support 4 and the connection profile 3, is shown in Figure 16 in several views.
  • the broad stepped base end of the substantially T-shaped sliding block 33 is inserted into the groove 51 of the connection profile 3 (see FIG. 14).
  • screws which are screwed through the connection profile 3 from the outside by threaded holes, the sliding blocks 33 after positioning in the groove 51 fixed by pressing the end of the screw with the thread on the wide base surface of the sliding block 33 and this pressed in the groove 51 against the radially inner surface (in Figure 10).
  • the other end of the sliding block 33 which is formed as a plate or cuboid extension and which extends in the figure 16 upwards, engages in the cavity 52 of the support 4 in there formed small recesses 53 a form fit.
  • the recesses 53 have a rectangular shape in cross-section, which corresponds to the plate-shaped extension of the sliding block 33, and the engagement therebetween is essentially free of play.
  • connection profile 3 for connecting the pipe segments 2 to one another and for fastening the supports 4 is shown in FIG.
  • a connection profile 3 according to the invention is shown in several views, wherein this connection profile 3 is preferably designed and manufactured as an extruded aluminum part.
  • the groove 51 serves to receive the or the sliding blocks 33 and the grooves 38 of the inclusion of smaller sliding blocks (not shown) are used.
  • the supports 4 are fixed, mounted to anchor a plant 1, for example by means of a plurality of support means 39 in a riverbed F.
  • anchoring is shown by way of example in FIG.
  • the flowing water in the flow W is introduced into the system 1.
  • the system 1 the housing of the pipe segments 2, which are interconnected via the flanges 10 and the edges 37.
  • the support means 39 are fixed with the smaller and not shown sliding blocks.
  • the support means 39 can be anchored in the river bed in the usual way.
  • connection profiles 3 On the sides of the connection profiles 3 are small grooves that serve to receive seals 35.
  • the edge 37 ( Figure 9) of each tube segment 2 is with the connection profile 3 firmly connected by means of a screw from a variety of screws.
  • Each tube segment 2, according to FIG. 11, which shows a particularly advantageous embodiment in several views, has a quarter arc in the circumferential direction in cross-section, and - seen in the axial direction of the plant 1 - an edge 37 at both ends in the circumferential direction.
  • flanges 10 are provided at the ends in the axial direction.
  • a plurality of pipe segments 2 are fastened together in the circumferential direction and in the axial direction of the system 1.
  • bores are formed in the edges 37 and in the flanges 10 (represented by dots in FIG. 11), which are penetrated by screws.
  • a reinforcing rib 36 may be formed.
  • four quarter-arc-shaped pipe segments 2 are assembled by means of four connecting profiles 3 to form a casing section of the plant 1 which is circular in cross-section.
  • Such circular cross-section housing sections can be mounted one behind the other to extend the system 1 in the axial direction.
  • the housing sections which are circular in cross-section may also consist of three pipe segments 2 - then a pipe segment 2 extends in each case over 120 ° on the circumference of the housing of the installation 1.
  • Such a system is shown in FIG then only three supports 4 distributed over the circumference for supporting the drive shaft 6 are provided.
  • the effort for assembly is reduced because fewer components are to be mounted together.
  • the accessibility to the interior of the plant 1 also improves because, if one of the pipe segments 2 has been removed for maintenance purposes, the access to the interior of the housing is greater than in the case of a four-part housing.
  • the opening in a three-part housing is 120 ° compared to only 90 ° in a four-part housing.
  • eyelets in the outer grooves 38 of the connection profiles 3, for example, eyelets (not shown) can be inserted or screwed, which are helpful during manufacture, during transport or installation on site can.
  • the housing or the system 1 can be easily lifted and positioned, for example, by means of these eyelets.
  • FIGS. 17, 18 and 19 show a ball bearing head 12 according to the invention in two embodiments.
  • the ball bearing head 12 serves to support the drive shaft 6 in the housing or in the installation 1. The details of a preferred embodiment of this ball bearing head 12 will now be described with reference to FIG.
  • the ball bearing head 12 has a main body 40, which is essentially cylindrical and is open on two sides in the axial direction X, so that a cylinder jacket surface is formed, which in the shown (FIG. 19) second and likewise preferred embodiment has four extensions 41, which are spaced on the circumference by 90 ° from each other and extend radially outward.
  • the cross section of these extensions is substantially rectangular and engages in the assembled state in the cavity 52 of the support 4 and there in the recesses 53 a.
  • the extension 41 has a stepped base, which corresponds in shape to the cross section of the cavity 52 in the support 4, so that a further anti-rotation of the support 4 is formed by positive engagement between the extension 41 and the support 4.
  • This special design of the extensions 41 can be clearly seen in FIG.
  • FIG. 19 shows undercuts or indentations 53 on the inner circumference of the cylindrical base body 40, which are located radially inside the extensions
  • each extension 41 is shown as an extension which also extends in the radial direction and is provided with holes in the left cross section. With the help of these holes, can engage in the screws, the support 4 can be attached to the base 40.
  • the main body 40 can be closed in the axial direction X on both sides each with a lid 45 and 46, wherein between the base body 40 and each lid 45 and 46 one or more seals 48 may be arranged.
  • a holding element 47 which defines the outer ring of the ball bearing 44, is arranged between the left cover 46 and a ball bearing 44.
  • a further seal 48 may be provided to securely prevent the ingress of fluid into the ball bearing 44.
  • the covers 45 and 46 are screwed by means of fastening means or screws 49 on the base body or alternatively pressed into the base body in the axial end openings.
  • a sleeve 42 is provided and arranged, the structure of which is shown in FIG.
  • the sleeve 42 has a radially outwardly extending shoulder 50 which in the axial direction X of the sleeve 42 has a straight, radially outwardly extending step, which presses against the inner ring of the ball bearing 44 and fixes it, while the other side of the shoulder 50 has an oblique edge against which the holding element is arranged while maintaining a small, required for the rotation distance.
  • the sleeve 42 has an internal toothing 43 which is in engagement with the external toothing 26 of the drive shaft 6.
  • the drive shaft 6 can rotate freely in the ball bearing head 12 in the ball bearing 44, while the base body 40 is fixed and is supported by the supports 4 on the housing of the system 1.
  • Such ball bearing heads 12 are arranged as needed and several times along the drive shaft 6, wherein preferably each meter a ball bearing head 12th is mounted to optimally support the drive shaft 6 and to keep the vibrations low and thus to ensure a quiet running of the drive shaft 6.
  • the permanently lubricated and low-maintenance ball bearings 44 are securely and fluid-tightly arranged within the main body 40 of the ball bearing head 12, so that a low-maintenance operation of the system 1 is ensured.
  • the output of the rotating drive shaft can be modified and adjusted by the planetary gear in many ways, such as in terms of the speed or the torque of the output, which can be easily adjusted by a planetary gear.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Wind Motors (AREA)
  • Hydraulic Turbines (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Joints Allowing Movement (AREA)

Abstract

La présente invention concerne de manière générale une installation (1) destinée à produire de l'énergie à partir d'un courant de fluide, de préférence à produire de l'énergie dite "renouvelable" à partir de la force de l'eau, et concerne en particulier un dispositif de réglage et de conservation de l'angle d'incidence pour une aube (5, 5') d'une installation (1) de ce type, une pluralité d'aubes (5, 5') étant disposées le long d'une arbre d'entraînement (6) de l'installation (1), en étant espacées entre elles respectivement de façon axiale et radiale, et chaque aube (5, 5') étant fixée au niveau de son extrémité orientée vers l'arbre d'entraînement (6), de manière amovible à l'arbre d'entraînement (6) au moyen d'un dispositif de retenue qui agit par complémentarité de forme en direction axiale de l'aube (5, 5'), et chaque aube (5, 5'), lorsqu'elle est montée, pouvant tourner et être immobilisée par rapport à l'arbre d'entraînement (6) dans un plan perpendiculaire à la direction axiale A de l'aube (5, 5'), au moyen d'un dispositif d'ajustage. L'invention a également pour objet une aube (5, 5') correspondante et un boîtier correspondant comprenant une pluralité de segments tubulaires (2) destinés à une installation (1) de ce type, ainsi qu'une tête de roulement à billes (12) permettant à l'arbre d'entraînement (6) de prendre appui.
EP08784959A 2007-07-25 2008-07-22 Dispositif de production d'énergie à partir d'un courant de fluide Withdrawn EP2174003A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10005776A EP2224125A3 (fr) 2007-07-25 2008-07-22 Dispositif de production d'énergie d'un flux
EP10005775A EP2221472A3 (fr) 2007-07-25 2008-07-22 Dispositif pour la production d'énergie à partir d'un flux de fluide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007034618A DE102007034618A1 (de) 2007-07-25 2007-07-25 Vorrichtung zur Erzeugung von Energie aus einer Fluidströmung
PCT/EP2008/005996 WO2009012977A2 (fr) 2007-07-25 2008-07-22 Dispositif de production d'énergie à partir d'un courant de fluide

Publications (1)

Publication Number Publication Date
EP2174003A2 true EP2174003A2 (fr) 2010-04-14

Family

ID=40157163

Family Applications (3)

Application Number Title Priority Date Filing Date
EP10005775A Withdrawn EP2221472A3 (fr) 2007-07-25 2008-07-22 Dispositif pour la production d'énergie à partir d'un flux de fluide
EP08784959A Withdrawn EP2174003A2 (fr) 2007-07-25 2008-07-22 Dispositif de production d'énergie à partir d'un courant de fluide
EP10005776A Withdrawn EP2224125A3 (fr) 2007-07-25 2008-07-22 Dispositif de production d'énergie d'un flux

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP10005775A Withdrawn EP2221472A3 (fr) 2007-07-25 2008-07-22 Dispositif pour la production d'énergie à partir d'un flux de fluide

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10005776A Withdrawn EP2224125A3 (fr) 2007-07-25 2008-07-22 Dispositif de production d'énergie d'un flux

Country Status (3)

Country Link
EP (3) EP2221472A3 (fr)
DE (1) DE102007034618A1 (fr)
WO (1) WO2009012977A2 (fr)

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NO331418B1 (no) * 2010-11-05 2011-12-27 Quality Crossing Norway As Rotor og turbin for anvendelse i vaeskestrom
DE102011013547A1 (de) * 2011-03-10 2012-09-13 Voith Patent Gmbh Rotoranordnung für eine Axialturbine und Verfahren für deren Montage
EP3434893B1 (fr) * 2016-03-22 2021-04-21 NTN Corporation Turbine hydraulique, structure accouplée de deux arbres filetés externes utilisée dans celle-ci, et structure accouplée de deux arbres
CN105756837B (zh) * 2016-04-05 2017-10-31 湘潭大学 一种直面叶片沿轴向分布式水轮机
CN113167208B (zh) * 2018-09-07 2023-07-25 金成植 通过多级安装管道涡轮机抽水发电塔

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Also Published As

Publication number Publication date
EP2224125A2 (fr) 2010-09-01
DE102007034618A1 (de) 2009-01-29
WO2009012977A2 (fr) 2009-01-29
EP2221472A3 (fr) 2011-11-23
EP2224125A3 (fr) 2011-10-19
EP2221472A2 (fr) 2010-08-25
WO2009012977A3 (fr) 2009-11-26

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