EP2250368A2 - Centrale marémotrice - Google Patents

Centrale marémotrice

Info

Publication number
EP2250368A2
EP2250368A2 EP09707121A EP09707121A EP2250368A2 EP 2250368 A2 EP2250368 A2 EP 2250368A2 EP 09707121 A EP09707121 A EP 09707121A EP 09707121 A EP09707121 A EP 09707121A EP 2250368 A2 EP2250368 A2 EP 2250368A2
Authority
EP
European Patent Office
Prior art keywords
component
floating
flywheel
power plant
buoy
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Withdrawn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
EP09707121A
Other languages
German (de)
English (en)
Inventor
Stefan Göttler
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 EP2250368A2 publication Critical patent/EP2250368A2/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Withdrawn legal-status Critical Current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
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
    • 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
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the invention relates to a wave power plant for generating electrical energy, by the generated by a shaft stroke of a floating body.
  • WO 2008116621 A1 discloses a device for generating energy from wave power.
  • the stroke of a moving part, a secondary coil, with respect to a non-moving part, in the form of a primary coil is performed by the shaft.
  • This linear generator current is generated via the relative movement of primary coil to secondary coil.
  • Secondary coil consist of high-temperature superconductor. This embodiment has the disadvantage that no mechanical energy storage is possible, and the production costs are very high due to the choice of material.
  • the invention is therefore based on the object, while avoiding the disadvantages mentioned above, to provide a simple and inexpensive to manufacture in the device, which converts low energy, wave power into electrical energy.
  • the invention is based on the knowledge to convert the wave force resulting from the wave motion into rotational energy and finally into electrical energy.
  • the wave power plant comprises a first floating component and a second stationary component, at least one translational element, and at least one rotary element.
  • the stationary component and the floating component are translationally movable relative to each other by the wave motion.
  • the fixed component thus does not move during operation, whereby a disassembly or misplacement by extraordinary environmental influences is still possible.
  • the translational relative movement of the two components causes a translational movement between the rotary element and the associated translational element.
  • Floating component, stationary component, translational element and rotatory element are in operative connection with each other.
  • the translational relative movement between the rotary element and the associated translational element thus generates a rotation of the rotary element.
  • a translational movement can be converted into a rotational movement. This can be done for example via worm gears, lifting spindle, gyro or the like.
  • the rotary element is in operative connection with at least one associated generator, which converts the rotary energy into electrical energy. This can be done by transmitting the rotational movement of the rotary element to a drive shaft of a generator, e.g. by friction, done.
  • a direct coupling of the generator rotor to the rotary element is conceivable.
  • the rotational energy is converted into electrical energy by means of at least one generator. For example, this can be implemented as usual in hybrid vehicles or wind turbines.
  • the energy thus obtained is transmitted via an electrical conductor from the wave power plant.
  • a transmission is provided between the translatory element and the rotary element. It is advantageous that a transmission can be well adapted to the transmission needs.
  • the rotational movement is transmitted via a freewheel gear to the rotary element.
  • the freewheel transmission allows torque transmission in only one direction of rotation.
  • the rotary element can therefore always be driven in one direction only. It is not braked by a slower rotating, or by a counter-rotating drive side. This has the advantage that the rotatory element emits stored energy constantly.
  • At least one translational element is connected directly or indirectly to the stationary component.
  • At least one rotary element is integrated waterproof in the floating component and rotatably mounted there.
  • the translational element is in operative connection both with the floating component and with the rotatory element. This ensures a relative translational movement between floating and stationary component along the translational element, and by the integration of the rotary element in the floating component and a translational movement between the rotary and translatory element.
  • at least one generator which is in operative connection with the rotary element is likewise integrated into the floating component. This has the advantage that the installation of the power plant in the sea is much easier.
  • the rotatory element is integrated waterproof in the stationary component and the translational element is connected to the floating component.
  • the floating component moves relatively translationally to the stationary component due to the swell, thereby moving the translational element relative to the rotary element.
  • the rotary element is set in rotation by the translatory element via this relative movement.
  • a generator is in this embodiment in the stationary component. This embodiment has the advantage that the weight to be borne by the floating component becomes minimal.
  • the stationary component and / or the floating component is formed at least in two parts. This considerably simplifies installation and maintenance work on the respective components. In addition, it makes sense for large wave power plants
  • the entry-level lock is airtight and provides access to the interior of the wave power plant for maintenance.
  • the entry-level airlock is designed to provide access to both maintenance personnel and required material. Furthermore, the installation is significantly simplified. - -
  • At least one attenuator is provided between the floating component and the stationary component. This has the task in heavy waves a hard clashing of parts, the floating component and / or with this connected parts with parts of the stationary component and / or with this connected parts to avoid. This significantly increases the life of the power plant and reduces the material load. Attenuators may for example be located between stationary component and translatory element and / or between floating component and translatory element.
  • At least one return element is provided, which is connected to both the floating
  • This element has the task in the deflection by the wave crest to store energy and in the next wave trough so again that a sliding back of the floating component to its original position, along the water surface is possible. This has the advantage that the maximum shaft stroke is used optimally.
  • Reset elements can also lie between translatory element and floating component, as well as between translational and stationary component.
  • damping element and return element can form a structural unit. This has a weight-reducing as well as a cost-reducing effect on the overall construction.
  • the translational movement is converted by means of a drill rod and a flywheel into a rotational movement.
  • the drill rod has a left-hand and / or a right-hand screw thread in a section, and is supported by a receptacle located in the center of the flywheel.
  • a relative movement of the flywheel along the drill rod is placed on the thread of the flywheel, this in corresponding rotation.
  • the drill rod corresponds to the translational element and the flywheel to the rotary element.
  • the flywheel is designed so that it has a relatively large part of its mass in the peripheral region. This is especially useful for storing mechanical energy. When high forces occur, it is conceivable to form the drill rod as a rack, as it withstands higher forces.
  • the flywheel is connected via a freewheel gear, which is realized by means of a dog clutch with the drill rod.
  • the offset by the drill rod in rotation claw engages in catch cams, which are chamfered against the direction of rotation.
  • the catches are connected to the flywheel.
  • the bevel of the catches is a Freilaufgetget formed.
  • the freewheel gear can be designed as usual for bicycles.
  • the generator may include a drive shaft and a gear attached thereto.
  • the gear engages in, on the flywheel mounted teeth.
  • the drive shaft of the generator can be normal or parallel to the axis of the flywheel. This has the advantage that several redundant generators increase the reliability.
  • the rotor of a generator is connected to the flywheel, which moves relative to the stator of the generator.
  • a transmission gear is provided between the translational element and the generator.
  • This can be both between the translatory element and the rotary element or between the rotary element and the generator.
  • Particularly advantageous is a depending on the waves automatically switchable transmission. This significantly improves the efficiency of the wave power plant.
  • the flywheel is connected to the floating component, the drill rod to the stationary component.
  • the wave power plant generates energy from the relative movement of the flywheel to the stationary drill rod.
  • the flywheel may be connected to the stationary component and the drill rod to the floating component. In both variants, the flywheel is always in operative connection with the drill rod.
  • the floating component of the wave power plant is designed as a buoy.
  • This has the advantage of a proven form, as well as a cheap production.
  • it is advantageous to form the stationary component as an anchor plate. This guarantees easy transport and easy attachment of the wave power plant to the seabed.
  • it is advantageous to provide a spring, in particular a tension spring, between the anchor plate and the floating buoy. The spring is reset and / or attenuator.
  • a so-called coastal power plant housing which is the stationary component of a wave power plant represents. This is therefore connected to the steep coastal floor. It may comprise a hollow cylindrical basic shape and may be formed of metal or concrete.
  • a floating component which may be formed as a cylindrical barrel and is connected to a translatory element moves in the interior of the cylinder by the waves penetrating there relative to the a coals basic shape having coastal power plant housing.
  • a rotary element is integrated, which is in operative connection with the translational element. Due to the relative movement of the translatory element, the rotary element is set in rotation.
  • a generator is also meaningfully integrated into the stationary component and converts the rotational energy into electrical energy. This coastal version has the advantage that no submarine cable is necessary to dissipate the electrical energy.
  • Fig. 1 is a schematic representation of a wave power plant in the trough
  • Fig. 2 is a schematic representation of a wave power plant on the wave crest
  • FIG. 3 is a schematic sectional view of a wave power plant without anchoring rod in the trough
  • Fig. 5 is a schematic sectional view of a wave power plant with inner casing in the non-uplifted state; - -
  • Fig. 6 is a schematic sectional view of a floating buoy shaft power plant with inner housing in the maximum raised state
  • Fig. 7 is a schematic plan view of the flywheel of a buoy
  • FIG. 8 is a schematic representation of the detail of a drill rod in the transition region
  • FIG. 11 is a schematic partial sectional view of the floating buoyant cover
  • Fig. 12 is a schematic sectional view of a floating buoy in mushroom-shaped design
  • FIG. 13 is a schematic sectional view of a floating buoy in a conical design
  • Fig. 14 is a sectional view of a wave power plant for rocky coasts in a non-raised state
  • Fig. 15 is a sectional view of a wave power plant for rocky coasts in the raised state
  • Fig. 16 is a plan view of a wave power plant for rock coasts
  • Fig. 17 is a cross section of a wave power plant for rock coasts with a V-shaped wall
  • Fig. Fig. 18 is a side view of a spring block
  • Fig. 18a is a plan view of a spring block
  • FIG. 20 shows a detailed detail of a spring block with compressed spring
  • Fig. 21 is an illustration of a wave power plant with integrated spring block
  • Fig. 22 is an illustration of a wave power plant with built closer to the water surface spring block.
  • Fig. 1 shows the schematic representation of a wave power plant 10 at low swell.
  • the wave power plant 10 comprises a floating buoy 14 as a floating component, with a buoyant buoy 14 a and a buoy buoy 14 b.
  • swimming buoy cap 14a and buoy buoy 14b are connected by screws. Between the Wegbojenrumpf 14b and the Wegbojendeckel 14a an airtight, salt-water resistant sealing tape 30 is provided. In floating buoys 14a generators 18 and Dynamos are fixed, the drive wheels engage in gears on the edge region of the flywheel 16.
  • the flywheel 16 is in this embodiment, the rotary element.
  • the attachment of the flywheel 16 on the buoy 14 is shown in detail Fig. 10 can be seen.
  • the flywheel 16 is rotated via a freewheel gear 32 due to its movement relatively along the drill rod 12 in rotation.
  • the drill rod 12 has a worm thread in the upper region over which the flywheel 16 is moved.
  • the drill rod 12 is connected via a fastening ring 26 with an anchoring rod 38, wherein the anchoring rod 38 has a buoyant sheath 36.
  • the anchoring rod 38 has a buoyant sheath 36.
  • the anchoring rod 38 is connected via a worm spring 24 and via a further fastening ring 26 with the anchor plate 22.
  • the worm spring 24 is also conceivable to integrate a homokinetic joint.
  • the anchor plate 22 thus represents the stationary component of the wave power plant. It is considered to be stationary, since it does not move in the system of the wave power plant during operation, and thus standing with the anchor plate 22 in operative connection buoy 14 allows relative to this by the waves to move.
  • the anchor plate 22 is connected via the anchoring rod 38 with the translational element, the drill rod 12. As can be seen further in FIG. 1, a pull plate 40 is attached to the drill rod 12. Between the tension plate 40 and the lower part of Wegbojenrumpfes 14b is a spring column 20, which is thus in operative connection with both the floating, as well as with the stationary component on the anchoring rod 38.
  • the spring column 20 comprises several springs of different spring parameters.
  • the springs are connected to each other via further middle tension plates 42.
  • the diameter of the middle tension plate 42 is slightly larger than the larger diameter of the two adjacent springs.
  • the middle tension plate 42 has a recess of oval shape, through which the drill rod 12 can slide.
  • the anchor plate 22 is advantageously made of reinforced concrete, since this is inexpensive to produce.
  • the dimensions and thus weight of the anchor plate 22 are dimensioned so that the wave power plant 10 is immovably held in position.
  • the mass corresponds to about three times the lifting capacity of the attached Brownboje 14.
  • the mounting rings 26 are made of saltwater resistant stainless steel, the material thickness is such that they do not need to be replaced for decades.
  • the worm spring 24 attached to the attachment ring 26 of the anchor plate 22 connects the anchor plate 22 and the anchor rod 38.
  • the worm spring 24 fulfills a similar function as a homokinetic joint since it is only minimally extendable. It allows the subsequent anchor rod 38 to pivot in all directions, with the spring force acting to vertically align the anchor rod 38. This force effect is therefore an advantage over the pure joint.
  • the worm spring 24 is formed of saltwater resistant chrome steel.
  • the adjoining the worm spring 24 anchoring rod 38 is also made of saltwater resistant steel or plastic.
  • the anchoring rod 38 Since due to the ocean currents, the anchoring rod 38 is not exactly vertical in the water, the weight of the anchoring rod 38 has an effect on the floating buoy 14 attached thereto. This is pulled down by the load. To avoid this, the anchoring rod 38 is covered with a floating shroud 36, which carries the dead weight of the anchoring rod 38 and also generates additional buoyancy for the buoy 14.
  • the sheath is made of Styrodur, because Styrodur is largely resistant to
  • Salt water is, and thus only a minimal additional treatment, for example, against ultraviolet radiation, is necessary to produce complete salt water resistance.
  • the anchoring rod 38 is connected to the drill rod 12, which has an oval cross-section.
  • the detailed embodiment of the drill rod 12 is explained in more detail in Fig. 8.
  • the drill rod 12 leads through a sealing sleeve 34 into the interior of the Wegbojenrumpfes 14b.
  • the buoy 14, so can move translationally along the drill rod 12.
  • a rotation of the Wegbojenrumpfes 14b is due to the oval shape of the drill rod 12, and the oval - -
  • the sealing sleeve 34 prevents at this point largely the ingress of water into the buoy 14. In the event that in any way water enters the buoy 14, the interior of the buoy 14 is filled with polystyrene. This prevents sinking of the buoy 14 in any case.
  • the compression springs are dimensioned so that a moving back of the buoy 14 into the wave trough, and a hopping of the buoy 14 is prevented from wave crest to wave crest.
  • the composition of the individual springs is chosen so that the return movement of the buoy 14 in the wave trough is optimal for each swell.
  • the spring column 20 is chosen so that the largely unhindered floating of the buoy 14 is not affected.
  • the spring column 20 fulfills the task of damping.
  • the flywheel 16 connected to the buoy 14 also moves upwards along the drill rod 12. As a result, the flywheel 16 is set in motion. From this movement is generated by the generators 20, the drive wheels engage in gears on the flywheel 16, electrical energy. The generated electrical energy is transmitted by means of a submarine cable 28 to land.
  • Fig. 2 shows the schematic sectional view of a wave power plant 10 similar to Fig.1.
  • the wave power plant 10 is shown at a high shaft.
  • the anchoring rod 38 is not encased, but is carried by adjustment floats 44. Alternatively, both variants can be combined.
  • the Justschwimmer 44 are dimensioned so that the weight of the anchoring rod 38 is worn, and beyond additional buoyancy for the buoy 14 is generated.
  • the spring column 20 is completely compressed between the uppermost draw plate 40 and the lower part of the floating buoy body 14b.
  • a correspondingly large wave can also completely overwhelm the buoy 14.
  • the drill rod 12 is pulled out to the maximum and all the springs are pressed together.
  • the upper mounting ring 26 is the advantage that the buoy 14 does not have to be dismantled at the bottom of the sea during maintenance, but can be decoupled at the transition of anchoring rod 38 and drill rod 12. This facilitates the maintenance work.
  • Fig. 3. shows a schematic sectional view of a buoy 14 in the wave trough or at a low shaft 100.
  • the drill rod 12 is connected directly to the anchor plate 22. This increases the stability, since no additional detachable transition is provided. This variant is best suited for shallower coastal areas.
  • the spring column 20, which lies between the upper tension plate 40 and the lower part of the Wegbojenrumpfs 14b is relaxed in this state of the buoy 14.
  • a sheath 36 of the drill rod 12 is also provided. This is also made of Styrodur.
  • the drill rod 12 is also connected in this embodiment via a worm spring 24 and a mounting ring 26 with the anchor plate 22.
  • Anchor plate 22, mounting ring 26 and worm spring 24 are executed as described in Fig. 1.
  • the integration of the generators 18, the flywheel 16 and the freewheel gear 32 is as described in FIG. 1 describe.
  • Fig. 5 illustrates the schematic sectional view of another embodiment.
  • an embodiment is shown having an inner housing 54.
  • This comprises a bottom plate 52, a tension rod housing 46, an adjustment plate 50, a spring housing 48, and a fuselage connection 56. All parts of the inner housing 54 are connected to one another in a fluid-tight manner.
  • the drawbar housing 46 connects to the bottom plate 52, which has a recess for the passage of the drill rod 12.
  • the completion of the Switzerlandstangengepuruses 46 forms the Justierplatte 50.
  • An oval recess in the adjustment plate 50 allows a torsion-free sliding - The drill rod 12.
  • the transition to the spring housing 48 is protected against the ingress of water.
  • the spring housing 48 is also water and airtight connected to the adjustment plate 50. This has the advantage that oil can be filled into the spring housing 48, whereby the drill rod 12 is lubricated. Since oil has a lower density than water, it can not get into the sea water. Thus, an environmental pollution is excluded.
  • the hull connection 56 connects. This provides a possibility for the connection with the buoyancy cap 14a in the edge region. Between the hull connection 56 and buoyancy cap lid 14a provides a seal 30 for air and water tightness. As mentioned in the previous figures, are in the field of
  • a spring column 20 is also provided, which is located between the uppermost tension plate 40 and the adjustment plate 50.
  • the inner housing 54 constitutes the skeleton of the buoy 14, the remaining part of the buoy trunk 14b can be made relatively free.
  • the remaining Styrodur is formed entirely in this embodiment of Styrodur.
  • the Styrodur is provided with a UV-resistant, salt-water-resistant coating to provide the necessary resistance. This allows a very cost-effective production.
  • a spring block 110 is provided between anchor plate 22 and drill rod 12.
  • the spring block has in this representation, as described in more detail in Figure 19, three pairs of springs with different tensile force.
  • an extension limit for increasing the life of the springs of the spring block is provided.
  • the spring block is rotatably mounted, and coupled via fastening rings 26 both to the anchor plate 22, and the drill rod 12.
  • Fig. 6 shows a wave power plant in the embodiment of Figure 5, but at high swell 100 in the maximum raised state.
  • a spring block 110 between anchor plate 22 and drill rod 12 is also provided in this figure.
  • FIG. 7 shows a schematic plan view of the flywheel 16 of a buoy 14. Particularly well seen in this illustration, the flywheel teeth 60, in which engage the drive wheels of the generators 18. Shown in this case are four generators.
  • the integration of multiple generators 18 means on the one hand, a higher efficiency, on the other hand a better failure safety through redundancy.
  • the freewheel gear 32 in plan view, in the middle of which there is a recess as a passage for the drill rod 12.
  • Fig. 8 shows a detail of the transition region of the drill rod 12.
  • the lower part of the drill rod 12 has an oval cross-sectional area and a smooth outer surface.
  • the oval basic shape with the smooth surface allows a rotation-free sliding of the drill rod 12 with a corresponding oval recording.
  • the upper part has a screw rotation, which is designed to drive the flywheel 16.
  • Fig. 9 shows the realization of the freewheel gear 32 by a bell claw 64 in a sectional view.
  • the freewheel gear 32 is formed similar to that of a toy gyroscope.
  • the freewheel gear 32 in this case has a gear cover 62 which is fixedly connected to the flywheel 16.
  • the drill rod 12 continues to lead through a bell claw 64 which is mounted both vertically and rotatably movable.
  • the flywheel 16 catch catches 66.
  • the catch cams 66 are formed as far as possible in the form of a bent half-cone as shown in this illustration. This is a difference to the design of a freewheel gear 32 in the toy gyroscope. There, the catch cams 66 are formed as quarter spheres. However, these are not suitable for such a high continuous load in a wave power plant 10.
  • Fig. 10 can be seen very well the arrangement of the curved conical catches 66 on the flywheel 16 in plan view. In the middle of the bell claw 64 is shown. In addition, it is the direction of rotation of the driven flywheel 16 indicated. By this freewheel gear 32, it is possible that the flywheel 16 rotates faster than the bell claw 64. As a result, the moment of inertia of the flywheel 16 is optimally utilized.
  • FIG. 11 shows a detailed section of the buoy 14 according to FIG. 1 or FIG. 2, in particular of the buoyant cover 14a.
  • the flywheel 16 is mounted on the side of the floating buoy hull 14b on two ball bearings 68a, 68b concentric with the center of the flywheel 16.
  • the radially outer ball bearing 68b carries the edge of the flywheel 16 and ensures a defined distance between the teeth of the flywheel 60 and the drive wheels of the generators 18.
  • the radially inner ball bearing 68a is a ball bearing 68c, which is connected to the Wegbojendeckel 14a opposite and fixed in this way the flywheel 16 rotatable.
  • this figure also shows the thickening in the edge region of the flywheel 16. This increases their inertial mass and ensures more even power generation.
  • Fig. 11 shows particularly well the freewheel gear 32, which has already been explained in more detail in Figures 9 and 10, with the attached to the flywheel 16 fishing cams 66. Furthermore, a signal light 70 is provided, which is attached to the highest point of the buoy 14 becomes. This, is therefore located on the part of the floating buoyant cover 14 a, which represents the cover for the drill rod 12. This part is designed such that when fully floating buoy 14 mounted the drill rod 12 is receiving.
  • a battery 92 in the Wegbojenrumpf 14 b is shown which is connected via cables to the generators 18 and the signal light 70.
  • the generator 18 can be seen the toothed drive wheel which engages in the teeth 60 of the flywheel 16. This ensures a largely lossless power transmission.
  • the attachment of the generator 18 on the buoyancy cap 14 a is also shown.
  • an air valve 72 is provided in addition to the signal light.
  • a thermal insulation layer 74 on swimming buoyslid 14a can also be seen very well in this illustration.
  • This insulating layer 74 is made of styrofoam and prevents the heat generated by solar radiation in the generator area.
  • the drive wheels of the generators 20 do not engage in serrations on the upper side of the flywheel 16, but engage in the toothed flywheel. disc outer edge.
  • a toothing on the flywheel outer edge is cheaper to produce than a toothing on the surface of the flywheel 16. Accordingly, in this case, the generators 18 are arranged vertically.
  • Fig. 12 discloses a configuration of the outer wall of the swimming buoy trunk 14b made of Styrodur. The interior of the floating buoy hull 14b is filled with Styrofoam. The Styrofoam filling is not necessary for the buoyancy of the buoy, but prevents buoy 14 from sinking when water passes through the outer wall.
  • the floating buoy 14 shown in FIG. 12 has an inner housing 54 as described in more detail in FIG. 5. This pigeons a flexible embodiment of the Wegbojenrumpfes 14b.
  • Fig. 13 shows a floating buoy in a conical design.
  • the outer wall of the floating buoy hull 14b made of Styrodur is also formed and filled with polystyrene.
  • the power is also generated by vertical generators 18, which engage in a toothing of the side edge of the flywheel 16.
  • the buoy 14 also here on the inner housing 54 described in FIG. 5.
  • the embodiments illustrated in FIGS. 12 and 13 are particularly suitable for individual production or for prototype construction.
  • FIG. 14 shows the cross-sectional view of another embodiment of a coastal type wave power plant 10, wherein the coastal power plant housing 90 includes a coasterhouse shell 90a and a coasterhouse shell 90b.
  • the type of energy production basically corresponds to the previously described.
  • the flywheel 16, so the rotary element, and the generators 18 are mounted in the coastal power plant housing cover 90a.
  • the coastal power plant housing cover 90a and coasterhouse shell sump 90b correspond to the stationary component.
  • the translational element, the drill rod 12 is connected to a cylinder float 76, which is the floating component, via a mounting ring 26.
  • the coastal power plant housing sump 90b is formed as a hollow cylindrical metal body, and screwed over three metal rings 86 with a concrete bed 78a.
  • a spring column 20 is shown, wherein the individual springs are designed as tension springs and are dimensioned so that the weight of the drill rod 12 and that of the cylinder float 76 is supported. Thus, only a small lifting force of the shaft is necessary to lift the cylinder float 76. Between the individual springs 42 are middle tension plates 42, which prevent the bulging of the springs. The cylinder float 76 is moved back by its weight, as well as the drill rod 12 in the trough. The electrical energy is thereby obtained as described in Fig.1.
  • the coastal powerhouse hull 90b has three recesses 84 on its underside. At the cylinder float 76 8 spacer rollers 80 are attached. These are arranged in pairs radially at a distance of 90 °. To guide the distance rollers 80 14b guide rails are integrated in the coastal power plant housing sump, which allow an upward and downward movement of the cylinder float 76 but prevent rotation thereof.
  • Coastal powerhouse hull 90b has a gap that is just large enough that the fine sand that is often co-puddled near the shore can not settle in it. Furthermore, the coastal power plant housing sump 90b has an overflow opening 82, so that, for example, at a high wave, the water can not exert much pressure on the already fully deflected cylinder float 76 more. Thus, the wave power plant survives even monster waves.
  • Fig. 15 also shows the cross section of a wave power plant 10 in Coastal design, as shown in Fig. 14. However, at a high shaft 100. Here it is particularly good that at maximum stroke, the overflow opening is released, and excess water can flow. The spring column 20 is fully compressed here and thus dampens the impact of the cylinder float 76 at the top of the coastal powerhouse housing sump 90b.
  • one leg of a V-shaped wall 78b is indicated, which extends from the ground to the coastal power plant housing cover 90a. The function of this V-shaped wall is shown in Fig. 16 shows a wave power plant 10 in a coastal design in a plan view. In this case, the hollow cylindrical coastal power plant housing sump 90b is formed of concrete.
  • Fig. 17 shows a horizontal section through a wave power plant 10 in coastal design.
  • the guide grooves 88 can also be seen in the concrete casing of the wave power plant fuselage 90b.
  • the three recesses 84 are shown.
  • the concrete bed 78a and a more or less v-shaped wall 78b can be seen particularly well on this figure.
  • the enclosure of the wave power plant through the V-shaped wall 78b has the advantage that the waves cumulatively hit the wave power plant 10.
  • Fig. 18 shows a spring block 110 for damping high wave forces.
  • This includes a spring block bottom 114, a first intermediate plate 116, a second intermediate plate 118, and a spring block cover plate 120.
  • the spring block 110 has a center rod 124, spring pairs 122a, 122b, 122c, and pullout limiters 112.
  • the spring block bottom 114 is formed as an elongated plate, to the center of the middle bar 124 leads.
  • the spring block bottom 114 is immovably connected via angular configurations with the center rod 124.
  • a first pair of remote 122a is connected at the two ends of the elongated plate of the spring block bottom 114 thereto. Above the first pair of springs 122a is a cross-shaped first intermediate plate 116 is connected.
  • the spring pair 122a is fixed to the ends of a first cross leg, the elongated
  • Spring block bottom 114 is opposite, connected. Furthermore, recesses are located both at the ends of the first cross limb and at the ends of the spring block bottom 114 within the spring support surfaces. These recesses allow the integration of Auszugsgebegrenzem 112. The Auszugsbeskyr 112 limit the maximum distance the spring block bottom 114 and the first intermediate plate 116 can take from each other. This prevents leaching of the spring pair 122a. A detailed description is given in FIGS. 19 and 20.
  • the first intermediate plate 116 has a second cross limb perpendicular to the first cross limb. At the two ends, the second crossbar turn a second pair of springs 122b is attached. The second spring pair 122b connects the first intermediate plate 116 to a second intermediate plate 118.
  • the second intermediate plate 118 is also cross-shaped.
  • the second pair 122b is connected to the ends of a second cross leg of the second intermediate plate 118 overlying the first intermediate plate 116.
  • the maximum distance between the first intermediate plate 116 and the second intermediate plate 118 is limited analogous to the first intermediate plate 116 and spring block bottom 114, by Auszugsbegrenzer 112.
  • a third spring pair 122c is again attached. This connects the second intermediate plate 118 with the spring block cover plate 120. Extraction limiters 112 are also provided at this transition.
  • the spring block cover plate 120 is also formed as an elongated plate (corresponding to a cross leg).
  • the elongated spring block cover plate 120 is followed by a tube bar 38b.
  • the tube bar 38b is fixedly connected to the spring block lid plate 120 through angles.
  • the tube rod 38b is filled with a floating material for better swimming behavior, and has a fastening ring 26 at its upper end.
  • the spring block 110 has a fastening ring 26.
  • the spring pairs 122a, 122b, 122c have different spring parameters to suit the needs.
  • two levels can be connected by more springs than in each case a spring pair 122a, 122b, 122c. For example, connect 4 or 8 springs between two plates.
  • FIG. 18a shows the top view of the spring block 110.
  • the cross-shaped configuration of the intermediate plates 116 and 118 is particularly illustrated here.
  • Fig. 19 shows a detail of a spring block. Shown is a section of the spring block bottom 114 and a first intermediate plate 116. As seen in this detail, the spring block bottom 114 and first intermediate plate 116 is connected to a spring 122. The spring is fixed to both the first intermediate plate 116 and the spring block bottom 114. Very good at this representation you can see the Auszugsbegrenzer 112. This is rod-shaped and guided through holes in the spring block bottom 114 and in the first intermediate plate 116. At both ends of the rod-shaped extension limiter 112 there are closures which are larger in diameter than the holes in the spring block bottom 114 and the first intermediate plate 116. The spacing of the ends gives the maximum distance that the two connected plates can assume from each other.
  • the spring 122 is designed as a tension spring.
  • the extension limiters 112 prevent rotation of the first intermediate plate 116 relative to the spring block bottom 114. - -
  • Fig. 20 shows a detail of a spring block 110 as shown in FIG. 19, wherein the spring 122 is compressed in this case. Particularly visible at this point is the eccentric arrangement of the pull-out limiter 112 within the spring 122.
  • Fig. 21 shows a buoy 14, which is connected via a drill rod 12, via a pipe rod 38 b, via a spring block 110 with an anchor plate 22.
  • the illustrated pairs of springs 122a, 122b, 122c have different spring parameters that take account of the requirements.
  • the respective transitions are provided with mounting rings 26.
  • the tube bar 38b can be arbitrarily long. For long lengths, it makes sense to fill the cavity of the tube bar 38b with a buoyant foam material. On the one hand this ensures stability, on the other hand it increases the self-supporting effect of the system.
  • a further weight saving for the buoy 14 is generally obtained by the outsourcing of the damping and restoring members from the buoy 14 out in the vicinity of the anchor plate 22. The further down this mass sits, the less it affects the buoy 14 from.
  • Fig. 22 shows a buoy 14, which is connected via a drill rod 12, via a pipe rod 38 b via a spring block 110, via an anchoring rod 38 with the anchor plate 22.
  • the anchoring days 38 is tubular and filled with a buoyant material.
  • the spring block 110 is subsequently mounted on the anchoring rod 38. This has the advantage that maintenance work on the spring block 110 is easier to do, since it is located at a shallower depth.
  • the illustrated spring pairs 122a, 122b, 122c have different spring parameters that take account of the requirements.
  • the stationary component in this case, the anchor plate 22 is formed in several parts. This includes in this presentation four round concrete slices.
  • the anchor plate 22 does not need to be formed of four parts, but may also include any number of thinner and correspondingly lighter discs.
  • the modular composition of the armature plate 22 of individual discs allows a large mass and therefore a correspondingly greater buoyancy of the buoy 14.
  • the transport costs remain relatively low, as not an oversized anchor plate 22 with a

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

L'invention concerne un dispositif de production d'énergie électrique à partir de la force des vagues, comportant un premier composant flottant (14, 76), un deuxième composant fixe (22, 90), au moins un générateur (18), au moins un élément de translation (12) et au moins un élément rotatif (16). Le premier composant flottant (14, 76) subit un mouvement de translation relatif par rapport au deuxième composant fixe (22, 90) sous l'effet du mouvement des vagues. Ceci entraîne un mouvement relatif de translation entre l'élément de translation (12) et l'élément rotatif correspondant (16) de telle manière que l'élément rotatif (16) reçoit de l'énergie de rotation qui est transformée en énergie électrique par au moins un générateur correspondant (18).
EP09707121A 2008-02-07 2009-02-05 Centrale marémotrice Withdrawn EP2250368A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102008007938 2008-02-07
DE102008030047 2008-06-20
DE2008002116 2008-12-23
PCT/DE2009/000154 WO2009097839A2 (fr) 2008-02-07 2009-02-05 Centrale marémotrice

Publications (1)

Publication Number Publication Date
EP2250368A2 true EP2250368A2 (fr) 2010-11-17

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EP09707121A Withdrawn EP2250368A2 (fr) 2008-02-07 2009-02-05 Centrale marémotrice

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US (1) US20100327595A1 (fr)
EP (1) EP2250368A2 (fr)
JP (1) JP2011511204A (fr)
KR (1) KR20100118597A (fr)
CN (1) CN101970857A (fr)
WO (1) WO2009097839A2 (fr)

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JP2011511204A (ja) 2011-04-07
WO2009097839A2 (fr) 2009-08-13
CN101970857A (zh) 2011-02-09
WO2009097839A3 (fr) 2010-04-15
KR20100118597A (ko) 2010-11-05
US20100327595A1 (en) 2010-12-30

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